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authorAndreas Hubel2020-06-07 21:41:40 +0200
committerAndreas Hubel2020-06-07 21:41:40 +0200
commita66c79184091efdac09ee31a3778c6fc850dbbda (patch)
treed0c8f474548d8699411b7e33ee3fde62029c13da /assets/netcut
parentd0a9d8b2b0d28dbef209c7cbcbfd56eaeac24d9b (diff)
add netcut assets to repo
submodules are propably to complicated for deployment.... :-)
Diffstat (limited to '')
m---------assets/netcut0
-rw-r--r--assets/netcut/assets/script.js70
-rw-r--r--assets/netcut/assets/style.css17
-rw-r--r--assets/netcut/assets/winkekatze.pngbin0 -> 63125 bytes
-rw-r--r--assets/netcut/lib/jquery/jquery-3.3.1.js10364
-rw-r--r--assets/netcut/lib/jquery/jquery-3.3.1.min.js2
-rw-r--r--assets/netcut/lib/jquery/jquery-3.3.1.min.map1
-rw-r--r--assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.js399
-rw-r--r--assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js3
-rw-r--r--assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js.map1
-rw-r--r--assets/netcut/lib/videojs-markers/videojs-markers.js517
-rw-r--r--assets/netcut/lib/videojs-markers/videojs-markers.js.map1
-rw-r--r--assets/netcut/lib/videojs-markers/videojs-markers.min.js4
-rw-r--r--assets/netcut/lib/videojs-markers/videojs.markers.css59
-rw-r--r--assets/netcut/lib/videojs-markers/videojs.markers.min.css1
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css47
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css.map1
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.min.css3
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js1278
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js.map1
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js9
-rw-r--r--assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js.map1
-rw-r--r--assets/netcut/lib/videojs/alt/video-js-cdn.css1279
-rw-r--r--assets/netcut/lib/videojs/alt/video-js-cdn.min.css1
-rw-r--r--assets/netcut/lib/videojs/alt/video.core.js26948
-rw-r--r--assets/netcut/lib/videojs/alt/video.core.min.js12
-rw-r--r--assets/netcut/lib/videojs/alt/video.core.novtt.js25215
-rw-r--r--assets/netcut/lib/videojs/alt/video.core.novtt.min.js12
-rw-r--r--assets/netcut/lib/videojs/alt/video.novtt.js54101
-rw-r--r--assets/netcut/lib/videojs/alt/video.novtt.min.js12
-rw-r--r--assets/netcut/lib/videojs/font/VideoJS.svg108
-rw-r--r--assets/netcut/lib/videojs/font/VideoJS.ttfbin0 -> 6788 bytes
-rw-r--r--assets/netcut/lib/videojs/font/VideoJS.woffbin0 -> 4168 bytes
-rw-r--r--assets/netcut/lib/videojs/lang/de.js84
-rw-r--r--assets/netcut/lib/videojs/lang/en.js85
-rw-r--r--assets/netcut/lib/videojs/video-js.css1279
-rw-r--r--assets/netcut/lib/videojs/video-js.min.css1
-rw-r--r--assets/netcut/lib/videojs/video.cjs.js43023
-rw-r--r--assets/netcut/lib/videojs/video.es.js43021
-rw-r--r--assets/netcut/lib/videojs/video.js56159
-rw-r--r--assets/netcut/lib/videojs/video.min.js12
41 files changed, 264131 insertions, 0 deletions
diff --git a/assets/netcut b/assets/netcut
deleted file mode 160000
-Subproject 3dcf07d83e57191c79654d97310cbeb494ea52b
diff --git a/assets/netcut/assets/script.js b/assets/netcut/assets/script.js
new file mode 100644
index 0000000..7d84af9
--- /dev/null
+++ b/assets/netcut/assets/script.js
@@ -0,0 +1,70 @@
+videojs.log.level('debug');
+
+
+var player = videojs('video');
+player.ready(function() {
+ this.markers({
+ onTimeUpdateAfterMarkerUpdate: function() {
+ prevTime = player.currentTime();
+ },
+ onMarkerReached: function() {
+ player.pause();
+ },
+ markers: [
+ {time: (INFRAME / 25), text: 'inframe', class: 'inframe'},
+ {time: (OUTFRAME / 25), text: 'outframe', class: 'outframe'},
+ ]
+ });
+
+ if(INFRAME != -1) this.currentTime(INFRAME / 25);
+
+ this.hotkeys({
+ volumeStep: 0.1,
+ seekStep: 5,
+ enableModifiersForNumbers: false,
+ });
+});
+
+var inframe = document.getElementById('inframe');
+var outframe = document.getElementById('outframe');
+
+if(INFRAME != -1) {
+ inframe.innerHTML = "inframe: " + (INFRAME / 25) + " seconds (frame " + INFRAME + ")\n";
+}
+
+if(OUTFRAME != -1) {
+ outframe.innerHTML = "outframe: " + (OUTFRAME / 25) + " seconds (frame " + OUTFRAME + ")\n";
+}
+
+function fnord(e) {
+ var time = player.currentTime();
+ var frame = Math.round(player.currentTime() / (1/VIDEO_FPS));
+
+ if(e['key'] == 'i') {
+ player.markers.getMarkers().forEach(function(x, i){
+ if(x.text == 'inframe') player.markers.remove([i]);
+ });
+ player.markers.add([{time: time, text: 'inframe', class: 'inframe'}]);
+ inframe.innerHTML = "inframe: " + time + " seconds (frame " + frame + ")\n";
+ } else if(e['key'] == 'o') {
+ player.markers.getMarkers().forEach(function(x, i){
+ if(x.text == 'outframe') player.markers.remove([i]);
+ });
+ player.markers.add([{time: time, text: 'outframe', class: 'outframe'}]);
+ outframe.innerHTML = "outframe: " + time + " seconds (frame " + frame + ")\n";
+ } else if(e['key'] == 'I') {
+ player.markers.getMarkers().forEach(function(x, i){
+ if(x.text == 'inframe') player.currentTime(x.time);
+ });
+ } else if(e['key'] == 'O') {
+ player.markers.getMarkers().forEach(function(x, i){
+ if(x.text == 'outframe') player.currentTime(x.time);
+ });
+ } else {
+ return true;
+ }
+}
+
+var playerdiv = document.getElementById('webcut');
+playerdiv.addEventListener("keydown", fnord);
+player.focus();
diff --git a/assets/netcut/assets/style.css b/assets/netcut/assets/style.css
new file mode 100644
index 0000000..ff84798
--- /dev/null
+++ b/assets/netcut/assets/style.css
@@ -0,0 +1,17 @@
+.vjs-marker {
+ height: 10px;
+ top: -5px;
+ margin: 0;
+}
+
+.inframe {
+ background-color: #00FF00 ! important;
+ width: 4px ! important;
+ border-radius: 0% ! important;
+}
+
+.outframe {
+ background-color: #FF0067 ! important;
+ width: 4px ! important;
+ border-radius: 0% ! important;
+}
diff --git a/assets/netcut/assets/winkekatze.png b/assets/netcut/assets/winkekatze.png
new file mode 100644
index 0000000..430f1b4
--- /dev/null
+++ b/assets/netcut/assets/winkekatze.png
Binary files differ
diff --git a/assets/netcut/lib/jquery/jquery-3.3.1.js b/assets/netcut/lib/jquery/jquery-3.3.1.js
new file mode 100644
index 0000000..9b5206b
--- /dev/null
+++ b/assets/netcut/lib/jquery/jquery-3.3.1.js
@@ -0,0 +1,10364 @@
+/*!
+ * jQuery JavaScript Library v3.3.1
+ * https://jquery.com/
+ *
+ * Includes Sizzle.js
+ * https://sizzlejs.com/
+ *
+ * Copyright JS Foundation and other contributors
+ * Released under the MIT license
+ * https://jquery.org/license
+ *
+ * Date: 2018-01-20T17:24Z
+ */
+( function( global, factory ) {
+
+ "use strict";
+
+ if ( typeof module === "object" && typeof module.exports === "object" ) {
+
+ // For CommonJS and CommonJS-like environments where a proper `window`
+ // is present, execute the factory and get jQuery.
+ // For environments that do not have a `window` with a `document`
+ // (such as Node.js), expose a factory as module.exports.
+ // This accentuates the need for the creation of a real `window`.
+ // e.g. var jQuery = require("jquery")(window);
+ // See ticket #14549 for more info.
+ module.exports = global.document ?
+ factory( global, true ) :
+ function( w ) {
+ if ( !w.document ) {
+ throw new Error( "jQuery requires a window with a document" );
+ }
+ return factory( w );
+ };
+ } else {
+ factory( global );
+ }
+
+// Pass this if window is not defined yet
+} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
+
+// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
+// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
+// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
+// enough that all such attempts are guarded in a try block.
+"use strict";
+
+var arr = [];
+
+var document = window.document;
+
+var getProto = Object.getPrototypeOf;
+
+var slice = arr.slice;
+
+var concat = arr.concat;
+
+var push = arr.push;
+
+var indexOf = arr.indexOf;
+
+var class2type = {};
+
+var toString = class2type.toString;
+
+var hasOwn = class2type.hasOwnProperty;
+
+var fnToString = hasOwn.toString;
+
+var ObjectFunctionString = fnToString.call( Object );
+
+var support = {};
+
+var isFunction = function isFunction( obj ) {
+
+ // Support: Chrome <=57, Firefox <=52
+ // In some browsers, typeof returns "function" for HTML <object> elements
+ // (i.e., `typeof document.createElement( "object" ) === "function"`).
+ // We don't want to classify *any* DOM node as a function.
+ return typeof obj === "function" && typeof obj.nodeType !== "number";
+ };
+
+
+var isWindow = function isWindow( obj ) {
+ return obj != null && obj === obj.window;
+ };
+
+
+
+
+ var preservedScriptAttributes = {
+ type: true,
+ src: true,
+ noModule: true
+ };
+
+ function DOMEval( code, doc, node ) {
+ doc = doc || document;
+
+ var i,
+ script = doc.createElement( "script" );
+
+ script.text = code;
+ if ( node ) {
+ for ( i in preservedScriptAttributes ) {
+ if ( node[ i ] ) {
+ script[ i ] = node[ i ];
+ }
+ }
+ }
+ doc.head.appendChild( script ).parentNode.removeChild( script );
+ }
+
+
+function toType( obj ) {
+ if ( obj == null ) {
+ return obj + "";
+ }
+
+ // Support: Android <=2.3 only (functionish RegExp)
+ return typeof obj === "object" || typeof obj === "function" ?
+ class2type[ toString.call( obj ) ] || "object" :
+ typeof obj;
+}
+/* global Symbol */
+// Defining this global in .eslintrc.json would create a danger of using the global
+// unguarded in another place, it seems safer to define global only for this module
+
+
+
+var
+ version = "3.3.1",
+
+ // Define a local copy of jQuery
+ jQuery = function( selector, context ) {
+
+ // The jQuery object is actually just the init constructor 'enhanced'
+ // Need init if jQuery is called (just allow error to be thrown if not included)
+ return new jQuery.fn.init( selector, context );
+ },
+
+ // Support: Android <=4.0 only
+ // Make sure we trim BOM and NBSP
+ rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
+
+jQuery.fn = jQuery.prototype = {
+
+ // The current version of jQuery being used
+ jquery: version,
+
+ constructor: jQuery,
+
+ // The default length of a jQuery object is 0
+ length: 0,
+
+ toArray: function() {
+ return slice.call( this );
+ },
+
+ // Get the Nth element in the matched element set OR
+ // Get the whole matched element set as a clean array
+ get: function( num ) {
+
+ // Return all the elements in a clean array
+ if ( num == null ) {
+ return slice.call( this );
+ }
+
+ // Return just the one element from the set
+ return num < 0 ? this[ num + this.length ] : this[ num ];
+ },
+
+ // Take an array of elements and push it onto the stack
+ // (returning the new matched element set)
+ pushStack: function( elems ) {
+
+ // Build a new jQuery matched element set
+ var ret = jQuery.merge( this.constructor(), elems );
+
+ // Add the old object onto the stack (as a reference)
+ ret.prevObject = this;
+
+ // Return the newly-formed element set
+ return ret;
+ },
+
+ // Execute a callback for every element in the matched set.
+ each: function( callback ) {
+ return jQuery.each( this, callback );
+ },
+
+ map: function( callback ) {
+ return this.pushStack( jQuery.map( this, function( elem, i ) {
+ return callback.call( elem, i, elem );
+ } ) );
+ },
+
+ slice: function() {
+ return this.pushStack( slice.apply( this, arguments ) );
+ },
+
+ first: function() {
+ return this.eq( 0 );
+ },
+
+ last: function() {
+ return this.eq( -1 );
+ },
+
+ eq: function( i ) {
+ var len = this.length,
+ j = +i + ( i < 0 ? len : 0 );
+ return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
+ },
+
+ end: function() {
+ return this.prevObject || this.constructor();
+ },
+
+ // For internal use only.
+ // Behaves like an Array's method, not like a jQuery method.
+ push: push,
+ sort: arr.sort,
+ splice: arr.splice
+};
+
+jQuery.extend = jQuery.fn.extend = function() {
+ var options, name, src, copy, copyIsArray, clone,
+ target = arguments[ 0 ] || {},
+ i = 1,
+ length = arguments.length,
+ deep = false;
+
+ // Handle a deep copy situation
+ if ( typeof target === "boolean" ) {
+ deep = target;
+
+ // Skip the boolean and the target
+ target = arguments[ i ] || {};
+ i++;
+ }
+
+ // Handle case when target is a string or something (possible in deep copy)
+ if ( typeof target !== "object" && !isFunction( target ) ) {
+ target = {};
+ }
+
+ // Extend jQuery itself if only one argument is passed
+ if ( i === length ) {
+ target = this;
+ i--;
+ }
+
+ for ( ; i < length; i++ ) {
+
+ // Only deal with non-null/undefined values
+ if ( ( options = arguments[ i ] ) != null ) {
+
+ // Extend the base object
+ for ( name in options ) {
+ src = target[ name ];
+ copy = options[ name ];
+
+ // Prevent never-ending loop
+ if ( target === copy ) {
+ continue;
+ }
+
+ // Recurse if we're merging plain objects or arrays
+ if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
+ ( copyIsArray = Array.isArray( copy ) ) ) ) {
+
+ if ( copyIsArray ) {
+ copyIsArray = false;
+ clone = src && Array.isArray( src ) ? src : [];
+
+ } else {
+ clone = src && jQuery.isPlainObject( src ) ? src : {};
+ }
+
+ // Never move original objects, clone them
+ target[ name ] = jQuery.extend( deep, clone, copy );
+
+ // Don't bring in undefined values
+ } else if ( copy !== undefined ) {
+ target[ name ] = copy;
+ }
+ }
+ }
+ }
+
+ // Return the modified object
+ return target;
+};
+
+jQuery.extend( {
+
+ // Unique for each copy of jQuery on the page
+ expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
+
+ // Assume jQuery is ready without the ready module
+ isReady: true,
+
+ error: function( msg ) {
+ throw new Error( msg );
+ },
+
+ noop: function() {},
+
+ isPlainObject: function( obj ) {
+ var proto, Ctor;
+
+ // Detect obvious negatives
+ // Use toString instead of jQuery.type to catch host objects
+ if ( !obj || toString.call( obj ) !== "[object Object]" ) {
+ return false;
+ }
+
+ proto = getProto( obj );
+
+ // Objects with no prototype (e.g., `Object.create( null )`) are plain
+ if ( !proto ) {
+ return true;
+ }
+
+ // Objects with prototype are plain iff they were constructed by a global Object function
+ Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
+ return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
+ },
+
+ isEmptyObject: function( obj ) {
+
+ /* eslint-disable no-unused-vars */
+ // See https://github.com/eslint/eslint/issues/6125
+ var name;
+
+ for ( name in obj ) {
+ return false;
+ }
+ return true;
+ },
+
+ // Evaluates a script in a global context
+ globalEval: function( code ) {
+ DOMEval( code );
+ },
+
+ each: function( obj, callback ) {
+ var length, i = 0;
+
+ if ( isArrayLike( obj ) ) {
+ length = obj.length;
+ for ( ; i < length; i++ ) {
+ if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+ break;
+ }
+ }
+ } else {
+ for ( i in obj ) {
+ if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+ break;
+ }
+ }
+ }
+
+ return obj;
+ },
+
+ // Support: Android <=4.0 only
+ trim: function( text ) {
+ return text == null ?
+ "" :
+ ( text + "" ).replace( rtrim, "" );
+ },
+
+ // results is for internal usage only
+ makeArray: function( arr, results ) {
+ var ret = results || [];
+
+ if ( arr != null ) {
+ if ( isArrayLike( Object( arr ) ) ) {
+ jQuery.merge( ret,
+ typeof arr === "string" ?
+ [ arr ] : arr
+ );
+ } else {
+ push.call( ret, arr );
+ }
+ }
+
+ return ret;
+ },
+
+ inArray: function( elem, arr, i ) {
+ return arr == null ? -1 : indexOf.call( arr, elem, i );
+ },
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ merge: function( first, second ) {
+ var len = +second.length,
+ j = 0,
+ i = first.length;
+
+ for ( ; j < len; j++ ) {
+ first[ i++ ] = second[ j ];
+ }
+
+ first.length = i;
+
+ return first;
+ },
+
+ grep: function( elems, callback, invert ) {
+ var callbackInverse,
+ matches = [],
+ i = 0,
+ length = elems.length,
+ callbackExpect = !invert;
+
+ // Go through the array, only saving the items
+ // that pass the validator function
+ for ( ; i < length; i++ ) {
+ callbackInverse = !callback( elems[ i ], i );
+ if ( callbackInverse !== callbackExpect ) {
+ matches.push( elems[ i ] );
+ }
+ }
+
+ return matches;
+ },
+
+ // arg is for internal usage only
+ map: function( elems, callback, arg ) {
+ var length, value,
+ i = 0,
+ ret = [];
+
+ // Go through the array, translating each of the items to their new values
+ if ( isArrayLike( elems ) ) {
+ length = elems.length;
+ for ( ; i < length; i++ ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret.push( value );
+ }
+ }
+
+ // Go through every key on the object,
+ } else {
+ for ( i in elems ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret.push( value );
+ }
+ }
+ }
+
+ // Flatten any nested arrays
+ return concat.apply( [], ret );
+ },
+
+ // A global GUID counter for objects
+ guid: 1,
+
+ // jQuery.support is not used in Core but other projects attach their
+ // properties to it so it needs to exist.
+ support: support
+} );
+
+if ( typeof Symbol === "function" ) {
+ jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
+}
+
+// Populate the class2type map
+jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
+function( i, name ) {
+ class2type[ "[object " + name + "]" ] = name.toLowerCase();
+} );
+
+function isArrayLike( obj ) {
+
+ // Support: real iOS 8.2 only (not reproducible in simulator)
+ // `in` check used to prevent JIT error (gh-2145)
+ // hasOwn isn't used here due to false negatives
+ // regarding Nodelist length in IE
+ var length = !!obj && "length" in obj && obj.length,
+ type = toType( obj );
+
+ if ( isFunction( obj ) || isWindow( obj ) ) {
+ return false;
+ }
+
+ return type === "array" || length === 0 ||
+ typeof length === "number" && length > 0 && ( length - 1 ) in obj;
+}
+var Sizzle =
+/*!
+ * Sizzle CSS Selector Engine v2.3.3
+ * https://sizzlejs.com/
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2016-08-08
+ */
+(function( window ) {
+
+var i,
+ support,
+ Expr,
+ getText,
+ isXML,
+ tokenize,
+ compile,
+ select,
+ outermostContext,
+ sortInput,
+ hasDuplicate,
+
+ // Local document vars
+ setDocument,
+ document,
+ docElem,
+ documentIsHTML,
+ rbuggyQSA,
+ rbuggyMatches,
+ matches,
+ contains,
+
+ // Instance-specific data
+ expando = "sizzle" + 1 * new Date(),
+ preferredDoc = window.document,
+ dirruns = 0,
+ done = 0,
+ classCache = createCache(),
+ tokenCache = createCache(),
+ compilerCache = createCache(),
+ sortOrder = function( a, b ) {
+ if ( a === b ) {
+ hasDuplicate = true;
+ }
+ return 0;
+ },
+
+ // Instance methods
+ hasOwn = ({}).hasOwnProperty,
+ arr = [],
+ pop = arr.pop,
+ push_native = arr.push,
+ push = arr.push,
+ slice = arr.slice,
+ // Use a stripped-down indexOf as it's faster than native
+ // https://jsperf.com/thor-indexof-vs-for/5
+ indexOf = function( list, elem ) {
+ var i = 0,
+ len = list.length;
+ for ( ; i < len; i++ ) {
+ if ( list[i] === elem ) {
+ return i;
+ }
+ }
+ return -1;
+ },
+
+ booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
+
+ // Regular expressions
+
+ // http://www.w3.org/TR/css3-selectors/#whitespace
+ whitespace = "[\\x20\\t\\r\\n\\f]",
+
+ // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+ identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
+
+ // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
+ attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
+ // Operator (capture 2)
+ "*([*^$|!~]?=)" + whitespace +
+ // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
+ "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
+ "*\\]",
+
+ pseudos = ":(" + identifier + ")(?:\\((" +
+ // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
+ // 1. quoted (capture 3; capture 4 or capture 5)
+ "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
+ // 2. simple (capture 6)
+ "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
+ // 3. anything else (capture 2)
+ ".*" +
+ ")\\)|)",
+
+ // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+ rwhitespace = new RegExp( whitespace + "+", "g" ),
+ rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
+
+ rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+ rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
+
+ rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
+
+ rpseudo = new RegExp( pseudos ),
+ ridentifier = new RegExp( "^" + identifier + "$" ),
+
+ matchExpr = {
+ "ID": new RegExp( "^#(" + identifier + ")" ),
+ "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
+ "TAG": new RegExp( "^(" + identifier + "|[*])" ),
+ "ATTR": new RegExp( "^" + attributes ),
+ "PSEUDO": new RegExp( "^" + pseudos ),
+ "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
+ "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
+ "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+ "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
+ // For use in libraries implementing .is()
+ // We use this for POS matching in `select`
+ "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
+ whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+ },
+
+ rinputs = /^(?:input|select|textarea|button)$/i,
+ rheader = /^h\d$/i,
+
+ rnative = /^[^{]+\{\s*\[native \w/,
+
+ // Easily-parseable/retrievable ID or TAG or CLASS selectors
+ rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+ rsibling = /[+~]/,
+
+ // CSS escapes
+ // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+ runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
+ funescape = function( _, escaped, escapedWhitespace ) {
+ var high = "0x" + escaped - 0x10000;
+ // NaN means non-codepoint
+ // Support: Firefox<24
+ // Workaround erroneous numeric interpretation of +"0x"
+ return high !== high || escapedWhitespace ?
+ escaped :
+ high < 0 ?
+ // BMP codepoint
+ String.fromCharCode( high + 0x10000 ) :
+ // Supplemental Plane codepoint (surrogate pair)
+ String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+ },
+
+ // CSS string/identifier serialization
+ // https://drafts.csswg.org/cssom/#common-serializing-idioms
+ rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
+ fcssescape = function( ch, asCodePoint ) {
+ if ( asCodePoint ) {
+
+ // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
+ if ( ch === "\0" ) {
+ return "\uFFFD";
+ }
+
+ // Control characters and (dependent upon position) numbers get escaped as code points
+ return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
+ }
+
+ // Other potentially-special ASCII characters get backslash-escaped
+ return "\\" + ch;
+ },
+
+ // Used for iframes
+ // See setDocument()
+ // Removing the function wrapper causes a "Permission Denied"
+ // error in IE
+ unloadHandler = function() {
+ setDocument();
+ },
+
+ disabledAncestor = addCombinator(
+ function( elem ) {
+ return elem.disabled === true && ("form" in elem || "label" in elem);
+ },
+ { dir: "parentNode", next: "legend" }
+ );
+
+// Optimize for push.apply( _, NodeList )
+try {
+ push.apply(
+ (arr = slice.call( preferredDoc.childNodes )),
+ preferredDoc.childNodes
+ );
+ // Support: Android<4.0
+ // Detect silently failing push.apply
+ arr[ preferredDoc.childNodes.length ].nodeType;
+} catch ( e ) {
+ push = { apply: arr.length ?
+
+ // Leverage slice if possible
+ function( target, els ) {
+ push_native.apply( target, slice.call(els) );
+ } :
+
+ // Support: IE<9
+ // Otherwise append directly
+ function( target, els ) {
+ var j = target.length,
+ i = 0;
+ // Can't trust NodeList.length
+ while ( (target[j++] = els[i++]) ) {}
+ target.length = j - 1;
+ }
+ };
+}
+
+function Sizzle( selector, context, results, seed ) {
+ var m, i, elem, nid, match, groups, newSelector,
+ newContext = context && context.ownerDocument,
+
+ // nodeType defaults to 9, since context defaults to document
+ nodeType = context ? context.nodeType : 9;
+
+ results = results || [];
+
+ // Return early from calls with invalid selector or context
+ if ( typeof selector !== "string" || !selector ||
+ nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
+
+ return results;
+ }
+
+ // Try to shortcut find operations (as opposed to filters) in HTML documents
+ if ( !seed ) {
+
+ if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
+ setDocument( context );
+ }
+ context = context || document;
+
+ if ( documentIsHTML ) {
+
+ // If the selector is sufficiently simple, try using a "get*By*" DOM method
+ // (excepting DocumentFragment context, where the methods don't exist)
+ if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
+
+ // ID selector
+ if ( (m = match[1]) ) {
+
+ // Document context
+ if ( nodeType === 9 ) {
+ if ( (elem = context.getElementById( m )) ) {
+
+ // Support: IE, Opera, Webkit
+ // TODO: identify versions
+ // getElementById can match elements by name instead of ID
+ if ( elem.id === m ) {
+ results.push( elem );
+ return results;
+ }
+ } else {
+ return results;
+ }
+
+ // Element context
+ } else {
+
+ // Support: IE, Opera, Webkit
+ // TODO: identify versions
+ // getElementById can match elements by name instead of ID
+ if ( newContext && (elem = newContext.getElementById( m )) &&
+ contains( context, elem ) &&
+ elem.id === m ) {
+
+ results.push( elem );
+ return results;
+ }
+ }
+
+ // Type selector
+ } else if ( match[2] ) {
+ push.apply( results, context.getElementsByTagName( selector ) );
+ return results;
+
+ // Class selector
+ } else if ( (m = match[3]) && support.getElementsByClassName &&
+ context.getElementsByClassName ) {
+
+ push.apply( results, context.getElementsByClassName( m ) );
+ return results;
+ }
+ }
+
+ // Take advantage of querySelectorAll
+ if ( support.qsa &&
+ !compilerCache[ selector + " " ] &&
+ (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
+
+ if ( nodeType !== 1 ) {
+ newContext = context;
+ newSelector = selector;
+
+ // qSA looks outside Element context, which is not what we want
+ // Thanks to Andrew Dupont for this workaround technique
+ // Support: IE <=8
+ // Exclude object elements
+ } else if ( context.nodeName.toLowerCase() !== "object" ) {
+
+ // Capture the context ID, setting it first if necessary
+ if ( (nid = context.getAttribute( "id" )) ) {
+ nid = nid.replace( rcssescape, fcssescape );
+ } else {
+ context.setAttribute( "id", (nid = expando) );
+ }
+
+ // Prefix every selector in the list
+ groups = tokenize( selector );
+ i = groups.length;
+ while ( i-- ) {
+ groups[i] = "#" + nid + " " + toSelector( groups[i] );
+ }
+ newSelector = groups.join( "," );
+
+ // Expand context for sibling selectors
+ newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
+ context;
+ }
+
+ if ( newSelector ) {
+ try {
+ push.apply( results,
+ newContext.querySelectorAll( newSelector )
+ );
+ return results;
+ } catch ( qsaError ) {
+ } finally {
+ if ( nid === expando ) {
+ context.removeAttribute( "id" );
+ }
+ }
+ }
+ }
+ }
+ }
+
+ // All others
+ return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {function(string, object)} Returns the Object data after storing it on itself with
+ * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ * deleting the oldest entry
+ */
+function createCache() {
+ var keys = [];
+
+ function cache( key, value ) {
+ // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+ if ( keys.push( key + " " ) > Expr.cacheLength ) {
+ // Only keep the most recent entries
+ delete cache[ keys.shift() ];
+ }
+ return (cache[ key + " " ] = value);
+ }
+ return cache;
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+ fn[ expando ] = true;
+ return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created element and returns a boolean result
+ */
+function assert( fn ) {
+ var el = document.createElement("fieldset");
+
+ try {
+ return !!fn( el );
+ } catch (e) {
+ return false;
+ } finally {
+ // Remove from its parent by default
+ if ( el.parentNode ) {
+ el.parentNode.removeChild( el );
+ }
+ // release memory in IE
+ el = null;
+ }
+}
+
+/**
+ * Adds the same handler for all of the specified attrs
+ * @param {String} attrs Pipe-separated list of attributes
+ * @param {Function} handler The method that will be applied
+ */
+function addHandle( attrs, handler ) {
+ var arr = attrs.split("|"),
+ i = arr.length;
+
+ while ( i-- ) {
+ Expr.attrHandle[ arr[i] ] = handler;
+ }
+}
+
+/**
+ * Checks document order of two siblings
+ * @param {Element} a
+ * @param {Element} b
+ * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
+ */
+function siblingCheck( a, b ) {
+ var cur = b && a,
+ diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
+ a.sourceIndex - b.sourceIndex;
+
+ // Use IE sourceIndex if available on both nodes
+ if ( diff ) {
+ return diff;
+ }
+
+ // Check if b follows a
+ if ( cur ) {
+ while ( (cur = cur.nextSibling) ) {
+ if ( cur === b ) {
+ return -1;
+ }
+ }
+ }
+
+ return a ? 1 : -1;
+}
+
+/**
+ * Returns a function to use in pseudos for input types
+ * @param {String} type
+ */
+function createInputPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for buttons
+ * @param {String} type
+ */
+function createButtonPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return (name === "input" || name === "button") && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for :enabled/:disabled
+ * @param {Boolean} disabled true for :disabled; false for :enabled
+ */
+function createDisabledPseudo( disabled ) {
+
+ // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
+ return function( elem ) {
+
+ // Only certain elements can match :enabled or :disabled
+ // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
+ // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
+ if ( "form" in elem ) {
+
+ // Check for inherited disabledness on relevant non-disabled elements:
+ // * listed form-associated elements in a disabled fieldset
+ // https://html.spec.whatwg.org/multipage/forms.html#category-listed
+ // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
+ // * option elements in a disabled optgroup
+ // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
+ // All such elements have a "form" property.
+ if ( elem.parentNode && elem.disabled === false ) {
+
+ // Option elements defer to a parent optgroup if present
+ if ( "label" in elem ) {
+ if ( "label" in elem.parentNode ) {
+ return elem.parentNode.disabled === disabled;
+ } else {
+ return elem.disabled === disabled;
+ }
+ }
+
+ // Support: IE 6 - 11
+ // Use the isDisabled shortcut property to check for disabled fieldset ancestors
+ return elem.isDisabled === disabled ||
+
+ // Where there is no isDisabled, check manually
+ /* jshint -W018 */
+ elem.isDisabled !== !disabled &&
+ disabledAncestor( elem ) === disabled;
+ }
+
+ return elem.disabled === disabled;
+
+ // Try to winnow out elements that can't be disabled before trusting the disabled property.
+ // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
+ // even exist on them, let alone have a boolean value.
+ } else if ( "label" in elem ) {
+ return elem.disabled === disabled;
+ }
+
+ // Remaining elements are neither :enabled nor :disabled
+ return false;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for positionals
+ * @param {Function} fn
+ */
+function createPositionalPseudo( fn ) {
+ return markFunction(function( argument ) {
+ argument = +argument;
+ return markFunction(function( seed, matches ) {
+ var j,
+ matchIndexes = fn( [], seed.length, argument ),
+ i = matchIndexes.length;
+
+ // Match elements found at the specified indexes
+ while ( i-- ) {
+ if ( seed[ (j = matchIndexes[i]) ] ) {
+ seed[j] = !(matches[j] = seed[j]);
+ }
+ }
+ });
+ });
+}
+
+/**
+ * Checks a node for validity as a Sizzle context
+ * @param {Element|Object=} context
+ * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
+ */
+function testContext( context ) {
+ return context && typeof context.getElementsByTagName !== "undefined" && context;
+}
+
+// Expose support vars for convenience
+support = Sizzle.support = {};
+
+/**
+ * Detects XML nodes
+ * @param {Element|Object} elem An element or a document
+ * @returns {Boolean} True iff elem is a non-HTML XML node
+ */
+isXML = Sizzle.isXML = function( elem ) {
+ // documentElement is verified for cases where it doesn't yet exist
+ // (such as loading iframes in IE - #4833)
+ var documentElement = elem && (elem.ownerDocument || elem).documentElement;
+ return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+ var hasCompare, subWindow,
+ doc = node ? node.ownerDocument || node : preferredDoc;
+
+ // Return early if doc is invalid or already selected
+ if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
+ return document;
+ }
+
+ // Update global variables
+ document = doc;
+ docElem = document.documentElement;
+ documentIsHTML = !isXML( document );
+
+ // Support: IE 9-11, Edge
+ // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
+ if ( preferredDoc !== document &&
+ (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
+
+ // Support: IE 11, Edge
+ if ( subWindow.addEventListener ) {
+ subWindow.addEventListener( "unload", unloadHandler, false );
+
+ // Support: IE 9 - 10 only
+ } else if ( subWindow.attachEvent ) {
+ subWindow.attachEvent( "onunload", unloadHandler );
+ }
+ }
+
+ /* Attributes
+ ---------------------------------------------------------------------- */
+
+ // Support: IE<8
+ // Verify that getAttribute really returns attributes and not properties
+ // (excepting IE8 booleans)
+ support.attributes = assert(function( el ) {
+ el.className = "i";
+ return !el.getAttribute("className");
+ });
+
+ /* getElement(s)By*
+ ---------------------------------------------------------------------- */
+
+ // Check if getElementsByTagName("*") returns only elements
+ support.getElementsByTagName = assert(function( el ) {
+ el.appendChild( document.createComment("") );
+ return !el.getElementsByTagName("*").length;
+ });
+
+ // Support: IE<9
+ support.getElementsByClassName = rnative.test( document.getElementsByClassName );
+
+ // Support: IE<10
+ // Check if getElementById returns elements by name
+ // The broken getElementById methods don't pick up programmatically-set names,
+ // so use a roundabout getElementsByName test
+ support.getById = assert(function( el ) {
+ docElem.appendChild( el ).id = expando;
+ return !document.getElementsByName || !document.getElementsByName( expando ).length;
+ });
+
+ // ID filter and find
+ if ( support.getById ) {
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ return elem.getAttribute("id") === attrId;
+ };
+ };
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+ var elem = context.getElementById( id );
+ return elem ? [ elem ] : [];
+ }
+ };
+ } else {
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ var node = typeof elem.getAttributeNode !== "undefined" &&
+ elem.getAttributeNode("id");
+ return node && node.value === attrId;
+ };
+ };
+
+ // Support: IE 6 - 7 only
+ // getElementById is not reliable as a find shortcut
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+ var node, i, elems,
+ elem = context.getElementById( id );
+
+ if ( elem ) {
+
+ // Verify the id attribute
+ node = elem.getAttributeNode("id");
+ if ( node && node.value === id ) {
+ return [ elem ];
+ }
+
+ // Fall back on getElementsByName
+ elems = context.getElementsByName( id );
+ i = 0;
+ while ( (elem = elems[i++]) ) {
+ node = elem.getAttributeNode("id");
+ if ( node && node.value === id ) {
+ return [ elem ];
+ }
+ }
+ }
+
+ return [];
+ }
+ };
+ }
+
+ // Tag
+ Expr.find["TAG"] = support.getElementsByTagName ?
+ function( tag, context ) {
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ return context.getElementsByTagName( tag );
+
+ // DocumentFragment nodes don't have gEBTN
+ } else if ( support.qsa ) {
+ return context.querySelectorAll( tag );
+ }
+ } :
+
+ function( tag, context ) {
+ var elem,
+ tmp = [],
+ i = 0,
+ // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
+ results = context.getElementsByTagName( tag );
+
+ // Filter out possible comments
+ if ( tag === "*" ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem.nodeType === 1 ) {
+ tmp.push( elem );
+ }
+ }
+
+ return tmp;
+ }
+ return results;
+ };
+
+ // Class
+ Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
+ if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
+ return context.getElementsByClassName( className );
+ }
+ };
+
+ /* QSA/matchesSelector
+ ---------------------------------------------------------------------- */
+
+ // QSA and matchesSelector support
+
+ // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+ rbuggyMatches = [];
+
+ // qSa(:focus) reports false when true (Chrome 21)
+ // We allow this because of a bug in IE8/9 that throws an error
+ // whenever `document.activeElement` is accessed on an iframe
+ // So, we allow :focus to pass through QSA all the time to avoid the IE error
+ // See https://bugs.jquery.com/ticket/13378
+ rbuggyQSA = [];
+
+ if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
+ // Build QSA regex
+ // Regex strategy adopted from Diego Perini
+ assert(function( el ) {
+ // Select is set to empty string on purpose
+ // This is to test IE's treatment of not explicitly
+ // setting a boolean content attribute,
+ // since its presence should be enough
+ // https://bugs.jquery.com/ticket/12359
+ docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
+ "<select id='" + expando + "-\r\\' msallowcapture=''>" +
+ "<option selected=''></option></select>";
+
+ // Support: IE8, Opera 11-12.16
+ // Nothing should be selected when empty strings follow ^= or $= or *=
+ // The test attribute must be unknown in Opera but "safe" for WinRT
+ // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
+ if ( el.querySelectorAll("[msallowcapture^='']").length ) {
+ rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
+ }
+
+ // Support: IE8
+ // Boolean attributes and "value" are not treated correctly
+ if ( !el.querySelectorAll("[selected]").length ) {
+ rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
+ }
+
+ // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
+ if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
+ rbuggyQSA.push("~=");
+ }
+
+ // Webkit/Opera - :checked should return selected option elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ // IE8 throws error here and will not see later tests
+ if ( !el.querySelectorAll(":checked").length ) {
+ rbuggyQSA.push(":checked");
+ }
+
+ // Support: Safari 8+, iOS 8+
+ // https://bugs.webkit.org/show_bug.cgi?id=136851
+ // In-page `selector#id sibling-combinator selector` fails
+ if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
+ rbuggyQSA.push(".#.+[+~]");
+ }
+ });
+
+ assert(function( el ) {
+ el.innerHTML = "<a href='' disabled='disabled'></a>" +
+ "<select disabled='disabled'><option/></select>";
+
+ // Support: Windows 8 Native Apps
+ // The type and name attributes are restricted during .innerHTML assignment
+ var input = document.createElement("input");
+ input.setAttribute( "type", "hidden" );
+ el.appendChild( input ).setAttribute( "name", "D" );
+
+ // Support: IE8
+ // Enforce case-sensitivity of name attribute
+ if ( el.querySelectorAll("[name=d]").length ) {
+ rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
+ }
+
+ // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+ // IE8 throws error here and will not see later tests
+ if ( el.querySelectorAll(":enabled").length !== 2 ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Support: IE9-11+
+ // IE's :disabled selector does not pick up the children of disabled fieldsets
+ docElem.appendChild( el ).disabled = true;
+ if ( el.querySelectorAll(":disabled").length !== 2 ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Opera 10-11 does not throw on post-comma invalid pseudos
+ el.querySelectorAll("*,:x");
+ rbuggyQSA.push(",.*:");
+ });
+ }
+
+ if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
+ docElem.webkitMatchesSelector ||
+ docElem.mozMatchesSelector ||
+ docElem.oMatchesSelector ||
+ docElem.msMatchesSelector) )) ) {
+
+ assert(function( el ) {
+ // Check to see if it's possible to do matchesSelector
+ // on a disconnected node (IE 9)
+ support.disconnectedMatch = matches.call( el, "*" );
+
+ // This should fail with an exception
+ // Gecko does not error, returns false instead
+ matches.call( el, "[s!='']:x" );
+ rbuggyMatches.push( "!=", pseudos );
+ });
+ }
+
+ rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
+ rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
+
+ /* Contains
+ ---------------------------------------------------------------------- */
+ hasCompare = rnative.test( docElem.compareDocumentPosition );
+
+ // Element contains another
+ // Purposefully self-exclusive
+ // As in, an element does not contain itself
+ contains = hasCompare || rnative.test( docElem.contains ) ?
+ function( a, b ) {
+ var adown = a.nodeType === 9 ? a.documentElement : a,
+ bup = b && b.parentNode;
+ return a === bup || !!( bup && bup.nodeType === 1 && (
+ adown.contains ?
+ adown.contains( bup ) :
+ a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+ ));
+ } :
+ function( a, b ) {
+ if ( b ) {
+ while ( (b = b.parentNode) ) {
+ if ( b === a ) {
+ return true;
+ }
+ }
+ }
+ return false;
+ };
+
+ /* Sorting
+ ---------------------------------------------------------------------- */
+
+ // Document order sorting
+ sortOrder = hasCompare ?
+ function( a, b ) {
+
+ // Flag for duplicate removal
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ // Sort on method existence if only one input has compareDocumentPosition
+ var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
+ if ( compare ) {
+ return compare;
+ }
+
+ // Calculate position if both inputs belong to the same document
+ compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
+ a.compareDocumentPosition( b ) :
+
+ // Otherwise we know they are disconnected
+ 1;
+
+ // Disconnected nodes
+ if ( compare & 1 ||
+ (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
+
+ // Choose the first element that is related to our preferred document
+ if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
+ return -1;
+ }
+ if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
+ return 1;
+ }
+
+ // Maintain original order
+ return sortInput ?
+ ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+ 0;
+ }
+
+ return compare & 4 ? -1 : 1;
+ } :
+ function( a, b ) {
+ // Exit early if the nodes are identical
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ var cur,
+ i = 0,
+ aup = a.parentNode,
+ bup = b.parentNode,
+ ap = [ a ],
+ bp = [ b ];
+
+ // Parentless nodes are either documents or disconnected
+ if ( !aup || !bup ) {
+ return a === document ? -1 :
+ b === document ? 1 :
+ aup ? -1 :
+ bup ? 1 :
+ sortInput ?
+ ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+ 0;
+
+ // If the nodes are siblings, we can do a quick check
+ } else if ( aup === bup ) {
+ return siblingCheck( a, b );
+ }
+
+ // Otherwise we need full lists of their ancestors for comparison
+ cur = a;
+ while ( (cur = cur.parentNode) ) {
+ ap.unshift( cur );
+ }
+ cur = b;
+ while ( (cur = cur.parentNode) ) {
+ bp.unshift( cur );
+ }
+
+ // Walk down the tree looking for a discrepancy
+ while ( ap[i] === bp[i] ) {
+ i++;
+ }
+
+ return i ?
+ // Do a sibling check if the nodes have a common ancestor
+ siblingCheck( ap[i], bp[i] ) :
+
+ // Otherwise nodes in our document sort first
+ ap[i] === preferredDoc ? -1 :
+ bp[i] === preferredDoc ? 1 :
+ 0;
+ };
+
+ return document;
+};
+
+Sizzle.matches = function( expr, elements ) {
+ return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ // Make sure that attribute selectors are quoted
+ expr = expr.replace( rattributeQuotes, "='$1']" );
+
+ if ( support.matchesSelector && documentIsHTML &&
+ !compilerCache[ expr + " " ] &&
+ ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
+ ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
+
+ try {
+ var ret = matches.call( elem, expr );
+
+ // IE 9's matchesSelector returns false on disconnected nodes
+ if ( ret || support.disconnectedMatch ||
+ // As well, disconnected nodes are said to be in a document
+ // fragment in IE 9
+ elem.document && elem.document.nodeType !== 11 ) {
+ return ret;
+ }
+ } catch (e) {}
+ }
+
+ return Sizzle( expr, document, null, [ elem ] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+ // Set document vars if needed
+ if ( ( context.ownerDocument || context ) !== document ) {
+ setDocument( context );
+ }
+ return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ var fn = Expr.attrHandle[ name.toLowerCase() ],
+ // Don't get fooled by Object.prototype properties (jQuery #13807)
+ val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
+ fn( elem, name, !documentIsHTML ) :
+ undefined;
+
+ return val !== undefined ?
+ val :
+ support.attributes || !documentIsHTML ?
+ elem.getAttribute( name ) :
+ (val = elem.getAttributeNode(name)) && val.specified ?
+ val.value :
+ null;
+};
+
+Sizzle.escape = function( sel ) {
+ return (sel + "").replace( rcssescape, fcssescape );
+};
+
+Sizzle.error = function( msg ) {
+ throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+/**
+ * Document sorting and removing duplicates
+ * @param {ArrayLike} results
+ */
+Sizzle.uniqueSort = function( results ) {
+ var elem,
+ duplicates = [],
+ j = 0,
+ i = 0;
+
+ // Unless we *know* we can detect duplicates, assume their presence
+ hasDuplicate = !support.detectDuplicates;
+ sortInput = !support.sortStable && results.slice( 0 );
+ results.sort( sortOrder );
+
+ if ( hasDuplicate ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem === results[ i ] ) {
+ j = duplicates.push( i );
+ }
+ }
+ while ( j-- ) {
+ results.splice( duplicates[ j ], 1 );
+ }
+ }
+
+ // Clear input after sorting to release objects
+ // See https://github.com/jquery/sizzle/pull/225
+ sortInput = null;
+
+ return results;
+};
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+ var node,
+ ret = "",
+ i = 0,
+ nodeType = elem.nodeType;
+
+ if ( !nodeType ) {
+ // If no nodeType, this is expected to be an array
+ while ( (node = elem[i++]) ) {
+ // Do not traverse comment nodes
+ ret += getText( node );
+ }
+ } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+ // Use textContent for elements
+ // innerText usage removed for consistency of new lines (jQuery #11153)
+ if ( typeof elem.textContent === "string" ) {
+ return elem.textContent;
+ } else {
+ // Traverse its children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ ret += getText( elem );
+ }
+ }
+ } else if ( nodeType === 3 || nodeType === 4 ) {
+ return elem.nodeValue;
+ }
+ // Do not include comment or processing instruction nodes
+
+ return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+ // Can be adjusted by the user
+ cacheLength: 50,
+
+ createPseudo: markFunction,
+
+ match: matchExpr,
+
+ attrHandle: {},
+
+ find: {},
+
+ relative: {
+ ">": { dir: "parentNode", first: true },
+ " ": { dir: "parentNode" },
+ "+": { dir: "previousSibling", first: true },
+ "~": { dir: "previousSibling" }
+ },
+
+ preFilter: {
+ "ATTR": function( match ) {
+ match[1] = match[1].replace( runescape, funescape );
+
+ // Move the given value to match[3] whether quoted or unquoted
+ match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
+
+ if ( match[2] === "~=" ) {
+ match[3] = " " + match[3] + " ";
+ }
+
+ return match.slice( 0, 4 );
+ },
+
+ "CHILD": function( match ) {
+ /* matches from matchExpr["CHILD"]
+ 1 type (only|nth|...)
+ 2 what (child|of-type)
+ 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+ 4 xn-component of xn+y argument ([+-]?\d*n|)
+ 5 sign of xn-component
+ 6 x of xn-component
+ 7 sign of y-component
+ 8 y of y-component
+ */
+ match[1] = match[1].toLowerCase();
+
+ if ( match[1].slice( 0, 3 ) === "nth" ) {
+ // nth-* requires argument
+ if ( !match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ // numeric x and y parameters for Expr.filter.CHILD
+ // remember that false/true cast respectively to 0/1
+ match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
+ match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
+
+ // other types prohibit arguments
+ } else if ( match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ return match;
+ },
+
+ "PSEUDO": function( match ) {
+ var excess,
+ unquoted = !match[6] && match[2];
+
+ if ( matchExpr["CHILD"].test( match[0] ) ) {
+ return null;
+ }
+
+ // Accept quoted arguments as-is
+ if ( match[3] ) {
+ match[2] = match[4] || match[5] || "";
+
+ // Strip excess characters from unquoted arguments
+ } else if ( unquoted && rpseudo.test( unquoted ) &&
+ // Get excess from tokenize (recursively)
+ (excess = tokenize( unquoted, true )) &&
+ // advance to the next closing parenthesis
+ (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
+
+ // excess is a negative index
+ match[0] = match[0].slice( 0, excess );
+ match[2] = unquoted.slice( 0, excess );
+ }
+
+ // Return only captures needed by the pseudo filter method (type and argument)
+ return match.slice( 0, 3 );
+ }
+ },
+
+ filter: {
+
+ "TAG": function( nodeNameSelector ) {
+ var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
+ return nodeNameSelector === "*" ?
+ function() { return true; } :
+ function( elem ) {
+ return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+ };
+ },
+
+ "CLASS": function( className ) {
+ var pattern = classCache[ className + " " ];
+
+ return pattern ||
+ (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
+ classCache( className, function( elem ) {
+ return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
+ });
+ },
+
+ "ATTR": function( name, operator, check ) {
+ return function( elem ) {
+ var result = Sizzle.attr( elem, name );
+
+ if ( result == null ) {
+ return operator === "!=";
+ }
+ if ( !operator ) {
+ return true;
+ }
+
+ result += "";
+
+ return operator === "=" ? result === check :
+ operator === "!=" ? result !== check :
+ operator === "^=" ? check && result.indexOf( check ) === 0 :
+ operator === "*=" ? check && result.indexOf( check ) > -1 :
+ operator === "$=" ? check && result.slice( -check.length ) === check :
+ operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
+ operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
+ false;
+ };
+ },
+
+ "CHILD": function( type, what, argument, first, last ) {
+ var simple = type.slice( 0, 3 ) !== "nth",
+ forward = type.slice( -4 ) !== "last",
+ ofType = what === "of-type";
+
+ return first === 1 && last === 0 ?
+
+ // Shortcut for :nth-*(n)
+ function( elem ) {
+ return !!elem.parentNode;
+ } :
+
+ function( elem, context, xml ) {
+ var cache, uniqueCache, outerCache, node, nodeIndex, start,
+ dir = simple !== forward ? "nextSibling" : "previousSibling",
+ parent = elem.parentNode,
+ name = ofType && elem.nodeName.toLowerCase(),
+ useCache = !xml && !ofType,
+ diff = false;
+
+ if ( parent ) {
+
+ // :(first|last|only)-(child|of-type)
+ if ( simple ) {
+ while ( dir ) {
+ node = elem;
+ while ( (node = node[ dir ]) ) {
+ if ( ofType ?
+ node.nodeName.toLowerCase() === name :
+ node.nodeType === 1 ) {
+
+ return false;
+ }
+ }
+ // Reverse direction for :only-* (if we haven't yet done so)
+ start = dir = type === "only" && !start && "nextSibling";
+ }
+ return true;
+ }
+
+ start = [ forward ? parent.firstChild : parent.lastChild ];
+
+ // non-xml :nth-child(...) stores cache data on `parent`
+ if ( forward && useCache ) {
+
+ // Seek `elem` from a previously-cached index
+
+ // ...in a gzip-friendly way
+ node = parent;
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ cache = uniqueCache[ type ] || [];
+ nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+ diff = nodeIndex && cache[ 2 ];
+ node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+
+ // Fallback to seeking `elem` from the start
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ // When found, cache indexes on `parent` and break
+ if ( node.nodeType === 1 && ++diff && node === elem ) {
+ uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
+ break;
+ }
+ }
+
+ } else {
+ // Use previously-cached element index if available
+ if ( useCache ) {
+ // ...in a gzip-friendly way
+ node = elem;
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ cache = uniqueCache[ type ] || [];
+ nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+ diff = nodeIndex;
+ }
+
+ // xml :nth-child(...)
+ // or :nth-last-child(...) or :nth(-last)?-of-type(...)
+ if ( diff === false ) {
+ // Use the same loop as above to seek `elem` from the start
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ if ( ( ofType ?
+ node.nodeName.toLowerCase() === name :
+ node.nodeType === 1 ) &&
+ ++diff ) {
+
+ // Cache the index of each encountered element
+ if ( useCache ) {
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ uniqueCache[ type ] = [ dirruns, diff ];
+ }
+
+ if ( node === elem ) {
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ // Incorporate the offset, then check against cycle size
+ diff -= last;
+ return diff === first || ( diff % first === 0 && diff / first >= 0 );
+ }
+ };
+ },
+
+ "PSEUDO": function( pseudo, argument ) {
+ // pseudo-class names are case-insensitive
+ // http://www.w3.org/TR/selectors/#pseudo-classes
+ // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+ // Remember that setFilters inherits from pseudos
+ var args,
+ fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+ Sizzle.error( "unsupported pseudo: " + pseudo );
+
+ // The user may use createPseudo to indicate that
+ // arguments are needed to create the filter function
+ // just as Sizzle does
+ if ( fn[ expando ] ) {
+ return fn( argument );
+ }
+
+ // But maintain support for old signatures
+ if ( fn.length > 1 ) {
+ args = [ pseudo, pseudo, "", argument ];
+ return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+ markFunction(function( seed, matches ) {
+ var idx,
+ matched = fn( seed, argument ),
+ i = matched.length;
+ while ( i-- ) {
+ idx = indexOf( seed, matched[i] );
+ seed[ idx ] = !( matches[ idx ] = matched[i] );
+ }
+ }) :
+ function( elem ) {
+ return fn( elem, 0, args );
+ };
+ }
+
+ return fn;
+ }
+ },
+
+ pseudos: {
+ // Potentially complex pseudos
+ "not": markFunction(function( selector ) {
+ // Trim the selector passed to compile
+ // to avoid treating leading and trailing
+ // spaces as combinators
+ var input = [],
+ results = [],
+ matcher = compile( selector.replace( rtrim, "$1" ) );
+
+ return matcher[ expando ] ?
+ markFunction(function( seed, matches, context, xml ) {
+ var elem,
+ unmatched = matcher( seed, null, xml, [] ),
+ i = seed.length;
+
+ // Match elements unmatched by `matcher`
+ while ( i-- ) {
+ if ( (elem = unmatched[i]) ) {
+ seed[i] = !(matches[i] = elem);
+ }
+ }
+ }) :
+ function( elem, context, xml ) {
+ input[0] = elem;
+ matcher( input, null, xml, results );
+ // Don't keep the element (issue #299)
+ input[0] = null;
+ return !results.pop();
+ };
+ }),
+
+ "has": markFunction(function( selector ) {
+ return function( elem ) {
+ return Sizzle( selector, elem ).length > 0;
+ };
+ }),
+
+ "contains": markFunction(function( text ) {
+ text = text.replace( runescape, funescape );
+ return function( elem ) {
+ return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
+ };
+ }),
+
+ // "Whether an element is represented by a :lang() selector
+ // is based solely on the element's language value
+ // being equal to the identifier C,
+ // or beginning with the identifier C immediately followed by "-".
+ // The matching of C against the element's language value is performed case-insensitively.
+ // The identifier C does not have to be a valid language name."
+ // http://www.w3.org/TR/selectors/#lang-pseudo
+ "lang": markFunction( function( lang ) {
+ // lang value must be a valid identifier
+ if ( !ridentifier.test(lang || "") ) {
+ Sizzle.error( "unsupported lang: " + lang );
+ }
+ lang = lang.replace( runescape, funescape ).toLowerCase();
+ return function( elem ) {
+ var elemLang;
+ do {
+ if ( (elemLang = documentIsHTML ?
+ elem.lang :
+ elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
+
+ elemLang = elemLang.toLowerCase();
+ return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+ }
+ } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
+ return false;
+ };
+ }),
+
+ // Miscellaneous
+ "target": function( elem ) {
+ var hash = window.location && window.location.hash;
+ return hash && hash.slice( 1 ) === elem.id;
+ },
+
+ "root": function( elem ) {
+ return elem === docElem;
+ },
+
+ "focus": function( elem ) {
+ return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
+ },
+
+ // Boolean properties
+ "enabled": createDisabledPseudo( false ),
+ "disabled": createDisabledPseudo( true ),
+
+ "checked": function( elem ) {
+ // In CSS3, :checked should return both checked and selected elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ var nodeName = elem.nodeName.toLowerCase();
+ return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
+ },
+
+ "selected": function( elem ) {
+ // Accessing this property makes selected-by-default
+ // options in Safari work properly
+ if ( elem.parentNode ) {
+ elem.parentNode.selectedIndex;
+ }
+
+ return elem.selected === true;
+ },
+
+ // Contents
+ "empty": function( elem ) {
+ // http://www.w3.org/TR/selectors/#empty-pseudo
+ // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
+ // but not by others (comment: 8; processing instruction: 7; etc.)
+ // nodeType < 6 works because attributes (2) do not appear as children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ if ( elem.nodeType < 6 ) {
+ return false;
+ }
+ }
+ return true;
+ },
+
+ "parent": function( elem ) {
+ return !Expr.pseudos["empty"]( elem );
+ },
+
+ // Element/input types
+ "header": function( elem ) {
+ return rheader.test( elem.nodeName );
+ },
+
+ "input": function( elem ) {
+ return rinputs.test( elem.nodeName );
+ },
+
+ "button": function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === "button" || name === "button";
+ },
+
+ "text": function( elem ) {
+ var attr;
+ return elem.nodeName.toLowerCase() === "input" &&
+ elem.type === "text" &&
+
+ // Support: IE<8
+ // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
+ ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
+ },
+
+ // Position-in-collection
+ "first": createPositionalPseudo(function() {
+ return [ 0 ];
+ }),
+
+ "last": createPositionalPseudo(function( matchIndexes, length ) {
+ return [ length - 1 ];
+ }),
+
+ "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ return [ argument < 0 ? argument + length : argument ];
+ }),
+
+ "even": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 0;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "odd": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 1;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; --i >= 0; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; ++i < length; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ })
+ }
+};
+
+Expr.pseudos["nth"] = Expr.pseudos["eq"];
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+ Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+ Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+// Easy API for creating new setFilters
+function setFilters() {}
+setFilters.prototype = Expr.filters = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
+ var matched, match, tokens, type,
+ soFar, groups, preFilters,
+ cached = tokenCache[ selector + " " ];
+
+ if ( cached ) {
+ return parseOnly ? 0 : cached.slice( 0 );
+ }
+
+ soFar = selector;
+ groups = [];
+ preFilters = Expr.preFilter;
+
+ while ( soFar ) {
+
+ // Comma and first run
+ if ( !matched || (match = rcomma.exec( soFar )) ) {
+ if ( match ) {
+ // Don't consume trailing commas as valid
+ soFar = soFar.slice( match[0].length ) || soFar;
+ }
+ groups.push( (tokens = []) );
+ }
+
+ matched = false;
+
+ // Combinators
+ if ( (match = rcombinators.exec( soFar )) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ // Cast descendant combinators to space
+ type: match[0].replace( rtrim, " " )
+ });
+ soFar = soFar.slice( matched.length );
+ }
+
+ // Filters
+ for ( type in Expr.filter ) {
+ if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
+ (match = preFilters[ type ]( match ))) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ type: type,
+ matches: match
+ });
+ soFar = soFar.slice( matched.length );
+ }
+ }
+
+ if ( !matched ) {
+ break;
+ }
+ }
+
+ // Return the length of the invalid excess
+ // if we're just parsing
+ // Otherwise, throw an error or return tokens
+ return parseOnly ?
+ soFar.length :
+ soFar ?
+ Sizzle.error( selector ) :
+ // Cache the tokens
+ tokenCache( selector, groups ).slice( 0 );
+};
+
+function toSelector( tokens ) {
+ var i = 0,
+ len = tokens.length,
+ selector = "";
+ for ( ; i < len; i++ ) {
+ selector += tokens[i].value;
+ }
+ return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+ var dir = combinator.dir,
+ skip = combinator.next,
+ key = skip || dir,
+ checkNonElements = base && key === "parentNode",
+ doneName = done++;
+
+ return combinator.first ?
+ // Check against closest ancestor/preceding element
+ function( elem, context, xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ return matcher( elem, context, xml );
+ }
+ }
+ return false;
+ } :
+
+ // Check against all ancestor/preceding elements
+ function( elem, context, xml ) {
+ var oldCache, uniqueCache, outerCache,
+ newCache = [ dirruns, doneName ];
+
+ // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
+ if ( xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ if ( matcher( elem, context, xml ) ) {
+ return true;
+ }
+ }
+ }
+ } else {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ outerCache = elem[ expando ] || (elem[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
+
+ if ( skip && skip === elem.nodeName.toLowerCase() ) {
+ elem = elem[ dir ] || elem;
+ } else if ( (oldCache = uniqueCache[ key ]) &&
+ oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
+
+ // Assign to newCache so results back-propagate to previous elements
+ return (newCache[ 2 ] = oldCache[ 2 ]);
+ } else {
+ // Reuse newcache so results back-propagate to previous elements
+ uniqueCache[ key ] = newCache;
+
+ // A match means we're done; a fail means we have to keep checking
+ if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
+ return true;
+ }
+ }
+ }
+ }
+ }
+ return false;
+ };
+}
+
+function elementMatcher( matchers ) {
+ return matchers.length > 1 ?
+ function( elem, context, xml ) {
+ var i = matchers.length;
+ while ( i-- ) {
+ if ( !matchers[i]( elem, context, xml ) ) {
+ return false;
+ }
+ }
+ return true;
+ } :
+ matchers[0];
+}
+
+function multipleContexts( selector, contexts, results ) {
+ var i = 0,
+ len = contexts.length;
+ for ( ; i < len; i++ ) {
+ Sizzle( selector, contexts[i], results );
+ }
+ return results;
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+ var elem,
+ newUnmatched = [],
+ i = 0,
+ len = unmatched.length,
+ mapped = map != null;
+
+ for ( ; i < len; i++ ) {
+ if ( (elem = unmatched[i]) ) {
+ if ( !filter || filter( elem, context, xml ) ) {
+ newUnmatched.push( elem );
+ if ( mapped ) {
+ map.push( i );
+ }
+ }
+ }
+ }
+
+ return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+ if ( postFilter && !postFilter[ expando ] ) {
+ postFilter = setMatcher( postFilter );
+ }
+ if ( postFinder && !postFinder[ expando ] ) {
+ postFinder = setMatcher( postFinder, postSelector );
+ }
+ return markFunction(function( seed, results, context, xml ) {
+ var temp, i, elem,
+ preMap = [],
+ postMap = [],
+ preexisting = results.length,
+
+ // Get initial elements from seed or context
+ elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
+
+ // Prefilter to get matcher input, preserving a map for seed-results synchronization
+ matcherIn = preFilter && ( seed || !selector ) ?
+ condense( elems, preMap, preFilter, context, xml ) :
+ elems,
+
+ matcherOut = matcher ?
+ // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+ postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+ // ...intermediate processing is necessary
+ [] :
+
+ // ...otherwise use results directly
+ results :
+ matcherIn;
+
+ // Find primary matches
+ if ( matcher ) {
+ matcher( matcherIn, matcherOut, context, xml );
+ }
+
+ // Apply postFilter
+ if ( postFilter ) {
+ temp = condense( matcherOut, postMap );
+ postFilter( temp, [], context, xml );
+
+ // Un-match failing elements by moving them back to matcherIn
+ i = temp.length;
+ while ( i-- ) {
+ if ( (elem = temp[i]) ) {
+ matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
+ }
+ }
+ }
+
+ if ( seed ) {
+ if ( postFinder || preFilter ) {
+ if ( postFinder ) {
+ // Get the final matcherOut by condensing this intermediate into postFinder contexts
+ temp = [];
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) ) {
+ // Restore matcherIn since elem is not yet a final match
+ temp.push( (matcherIn[i] = elem) );
+ }
+ }
+ postFinder( null, (matcherOut = []), temp, xml );
+ }
+
+ // Move matched elements from seed to results to keep them synchronized
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) &&
+ (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
+
+ seed[temp] = !(results[temp] = elem);
+ }
+ }
+ }
+
+ // Add elements to results, through postFinder if defined
+ } else {
+ matcherOut = condense(
+ matcherOut === results ?
+ matcherOut.splice( preexisting, matcherOut.length ) :
+ matcherOut
+ );
+ if ( postFinder ) {
+ postFinder( null, results, matcherOut, xml );
+ } else {
+ push.apply( results, matcherOut );
+ }
+ }
+ });
+}
+
+function matcherFromTokens( tokens ) {
+ var checkContext, matcher, j,
+ len = tokens.length,
+ leadingRelative = Expr.relative[ tokens[0].type ],
+ implicitRelative = leadingRelative || Expr.relative[" "],
+ i = leadingRelative ? 1 : 0,
+
+ // The foundational matcher ensures that elements are reachable from top-level context(s)
+ matchContext = addCombinator( function( elem ) {
+ return elem === checkContext;
+ }, implicitRelative, true ),
+ matchAnyContext = addCombinator( function( elem ) {
+ return indexOf( checkContext, elem ) > -1;
+ }, implicitRelative, true ),
+ matchers = [ function( elem, context, xml ) {
+ var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+ (checkContext = context).nodeType ?
+ matchContext( elem, context, xml ) :
+ matchAnyContext( elem, context, xml ) );
+ // Avoid hanging onto element (issue #299)
+ checkContext = null;
+ return ret;
+ } ];
+
+ for ( ; i < len; i++ ) {
+ if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
+ matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
+ } else {
+ matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
+
+ // Return special upon seeing a positional matcher
+ if ( matcher[ expando ] ) {
+ // Find the next relative operator (if any) for proper handling
+ j = ++i;
+ for ( ; j < len; j++ ) {
+ if ( Expr.relative[ tokens[j].type ] ) {
+ break;
+ }
+ }
+ return setMatcher(
+ i > 1 && elementMatcher( matchers ),
+ i > 1 && toSelector(
+ // If the preceding token was a descendant combinator, insert an implicit any-element `*`
+ tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
+ ).replace( rtrim, "$1" ),
+ matcher,
+ i < j && matcherFromTokens( tokens.slice( i, j ) ),
+ j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
+ j < len && toSelector( tokens )
+ );
+ }
+ matchers.push( matcher );
+ }
+ }
+
+ return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+ var bySet = setMatchers.length > 0,
+ byElement = elementMatchers.length > 0,
+ superMatcher = function( seed, context, xml, results, outermost ) {
+ var elem, j, matcher,
+ matchedCount = 0,
+ i = "0",
+ unmatched = seed && [],
+ setMatched = [],
+ contextBackup = outermostContext,
+ // We must always have either seed elements or outermost context
+ elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
+ // Use integer dirruns iff this is the outermost matcher
+ dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
+ len = elems.length;
+
+ if ( outermost ) {
+ outermostContext = context === document || context || outermost;
+ }
+
+ // Add elements passing elementMatchers directly to results
+ // Support: IE<9, Safari
+ // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
+ for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
+ if ( byElement && elem ) {
+ j = 0;
+ if ( !context && elem.ownerDocument !== document ) {
+ setDocument( elem );
+ xml = !documentIsHTML;
+ }
+ while ( (matcher = elementMatchers[j++]) ) {
+ if ( matcher( elem, context || document, xml) ) {
+ results.push( elem );
+ break;
+ }
+ }
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ }
+ }
+
+ // Track unmatched elements for set filters
+ if ( bySet ) {
+ // They will have gone through all possible matchers
+ if ( (elem = !matcher && elem) ) {
+ matchedCount--;
+ }
+
+ // Lengthen the array for every element, matched or not
+ if ( seed ) {
+ unmatched.push( elem );
+ }
+ }
+ }
+
+ // `i` is now the count of elements visited above, and adding it to `matchedCount`
+ // makes the latter nonnegative.
+ matchedCount += i;
+
+ // Apply set filters to unmatched elements
+ // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
+ // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
+ // no element matchers and no seed.
+ // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
+ // case, which will result in a "00" `matchedCount` that differs from `i` but is also
+ // numerically zero.
+ if ( bySet && i !== matchedCount ) {
+ j = 0;
+ while ( (matcher = setMatchers[j++]) ) {
+ matcher( unmatched, setMatched, context, xml );
+ }
+
+ if ( seed ) {
+ // Reintegrate element matches to eliminate the need for sorting
+ if ( matchedCount > 0 ) {
+ while ( i-- ) {
+ if ( !(unmatched[i] || setMatched[i]) ) {
+ setMatched[i] = pop.call( results );
+ }
+ }
+ }
+
+ // Discard index placeholder values to get only actual matches
+ setMatched = condense( setMatched );
+ }
+
+ // Add matches to results
+ push.apply( results, setMatched );
+
+ // Seedless set matches succeeding multiple successful matchers stipulate sorting
+ if ( outermost && !seed && setMatched.length > 0 &&
+ ( matchedCount + setMatchers.length ) > 1 ) {
+
+ Sizzle.uniqueSort( results );
+ }
+ }
+
+ // Override manipulation of globals by nested matchers
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ outermostContext = contextBackup;
+ }
+
+ return unmatched;
+ };
+
+ return bySet ?
+ markFunction( superMatcher ) :
+ superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
+ var i,
+ setMatchers = [],
+ elementMatchers = [],
+ cached = compilerCache[ selector + " " ];
+
+ if ( !cached ) {
+ // Generate a function of recursive functions that can be used to check each element
+ if ( !match ) {
+ match = tokenize( selector );
+ }
+ i = match.length;
+ while ( i-- ) {
+ cached = matcherFromTokens( match[i] );
+ if ( cached[ expando ] ) {
+ setMatchers.push( cached );
+ } else {
+ elementMatchers.push( cached );
+ }
+ }
+
+ // Cache the compiled function
+ cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
+
+ // Save selector and tokenization
+ cached.selector = selector;
+ }
+ return cached;
+};
+
+/**
+ * A low-level selection function that works with Sizzle's compiled
+ * selector functions
+ * @param {String|Function} selector A selector or a pre-compiled
+ * selector function built with Sizzle.compile
+ * @param {Element} context
+ * @param {Array} [results]
+ * @param {Array} [seed] A set of elements to match against
+ */
+select = Sizzle.select = function( selector, context, results, seed ) {
+ var i, tokens, token, type, find,
+ compiled = typeof selector === "function" && selector,
+ match = !seed && tokenize( (selector = compiled.selector || selector) );
+
+ results = results || [];
+
+ // Try to minimize operations if there is only one selector in the list and no seed
+ // (the latter of which guarantees us context)
+ if ( match.length === 1 ) {
+
+ // Reduce context if the leading compound selector is an ID
+ tokens = match[0] = match[0].slice( 0 );
+ if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
+ context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
+
+ context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
+ if ( !context ) {
+ return results;
+
+ // Precompiled matchers will still verify ancestry, so step up a level
+ } else if ( compiled ) {
+ context = context.parentNode;
+ }
+
+ selector = selector.slice( tokens.shift().value.length );
+ }
+
+ // Fetch a seed set for right-to-left matching
+ i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
+ while ( i-- ) {
+ token = tokens[i];
+
+ // Abort if we hit a combinator
+ if ( Expr.relative[ (type = token.type) ] ) {
+ break;
+ }
+ if ( (find = Expr.find[ type ]) ) {
+ // Search, expanding context for leading sibling combinators
+ if ( (seed = find(
+ token.matches[0].replace( runescape, funescape ),
+ rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
+ )) ) {
+
+ // If seed is empty or no tokens remain, we can return early
+ tokens.splice( i, 1 );
+ selector = seed.length && toSelector( tokens );
+ if ( !selector ) {
+ push.apply( results, seed );
+ return results;
+ }
+
+ break;
+ }
+ }
+ }
+ }
+
+ // Compile and execute a filtering function if one is not provided
+ // Provide `match` to avoid retokenization if we modified the selector above
+ ( compiled || compile( selector, match ) )(
+ seed,
+ context,
+ !documentIsHTML,
+ results,
+ !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
+ );
+ return results;
+};
+
+// One-time assignments
+
+// Sort stability
+support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
+
+// Support: Chrome 14-35+
+// Always assume duplicates if they aren't passed to the comparison function
+support.detectDuplicates = !!hasDuplicate;
+
+// Initialize against the default document
+setDocument();
+
+// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
+// Detached nodes confoundingly follow *each other*
+support.sortDetached = assert(function( el ) {
+ // Should return 1, but returns 4 (following)
+ return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
+});
+
+// Support: IE<8
+// Prevent attribute/property "interpolation"
+// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !assert(function( el ) {
+ el.innerHTML = "<a href='#'></a>";
+ return el.firstChild.getAttribute("href") === "#" ;
+}) ) {
+ addHandle( "type|href|height|width", function( elem, name, isXML ) {
+ if ( !isXML ) {
+ return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
+ }
+ });
+}
+
+// Support: IE<9
+// Use defaultValue in place of getAttribute("value")
+if ( !support.attributes || !assert(function( el ) {
+ el.innerHTML = "<input/>";
+ el.firstChild.setAttribute( "value", "" );
+ return el.firstChild.getAttribute( "value" ) === "";
+}) ) {
+ addHandle( "value", function( elem, name, isXML ) {
+ if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
+ return elem.defaultValue;
+ }
+ });
+}
+
+// Support: IE<9
+// Use getAttributeNode to fetch booleans when getAttribute lies
+if ( !assert(function( el ) {
+ return el.getAttribute("disabled") == null;
+}) ) {
+ addHandle( booleans, function( elem, name, isXML ) {
+ var val;
+ if ( !isXML ) {
+ return elem[ name ] === true ? name.toLowerCase() :
+ (val = elem.getAttributeNode( name )) && val.specified ?
+ val.value :
+ null;
+ }
+ });
+}
+
+return Sizzle;
+
+})( window );
+
+
+
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+
+// Deprecated
+jQuery.expr[ ":" ] = jQuery.expr.pseudos;
+jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+jQuery.escapeSelector = Sizzle.escape;
+
+
+
+
+var dir = function( elem, dir, until ) {
+ var matched = [],
+ truncate = until !== undefined;
+
+ while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
+ if ( elem.nodeType === 1 ) {
+ if ( truncate && jQuery( elem ).is( until ) ) {
+ break;
+ }
+ matched.push( elem );
+ }
+ }
+ return matched;
+};
+
+
+var siblings = function( n, elem ) {
+ var matched = [];
+
+ for ( ; n; n = n.nextSibling ) {
+ if ( n.nodeType === 1 && n !== elem ) {
+ matched.push( n );
+ }
+ }
+
+ return matched;
+};
+
+
+var rneedsContext = jQuery.expr.match.needsContext;
+
+
+
+function nodeName( elem, name ) {
+
+ return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+
+};
+var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
+
+
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, not ) {
+ if ( isFunction( qualifier ) ) {
+ return jQuery.grep( elements, function( elem, i ) {
+ return !!qualifier.call( elem, i, elem ) !== not;
+ } );
+ }
+
+ // Single element
+ if ( qualifier.nodeType ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( elem === qualifier ) !== not;
+ } );
+ }
+
+ // Arraylike of elements (jQuery, arguments, Array)
+ if ( typeof qualifier !== "string" ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
+ } );
+ }
+
+ // Filtered directly for both simple and complex selectors
+ return jQuery.filter( qualifier, elements, not );
+}
+
+jQuery.filter = function( expr, elems, not ) {
+ var elem = elems[ 0 ];
+
+ if ( not ) {
+ expr = ":not(" + expr + ")";
+ }
+
+ if ( elems.length === 1 && elem.nodeType === 1 ) {
+ return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
+ }
+
+ return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+ return elem.nodeType === 1;
+ } ) );
+};
+
+jQuery.fn.extend( {
+ find: function( selector ) {
+ var i, ret,
+ len = this.length,
+ self = this;
+
+ if ( typeof selector !== "string" ) {
+ return this.pushStack( jQuery( selector ).filter( function() {
+ for ( i = 0; i < len; i++ ) {
+ if ( jQuery.contains( self[ i ], this ) ) {
+ return true;
+ }
+ }
+ } ) );
+ }
+
+ ret = this.pushStack( [] );
+
+ for ( i = 0; i < len; i++ ) {
+ jQuery.find( selector, self[ i ], ret );
+ }
+
+ return len > 1 ? jQuery.uniqueSort( ret ) : ret;
+ },
+ filter: function( selector ) {
+ return this.pushStack( winnow( this, selector || [], false ) );
+ },
+ not: function( selector ) {
+ return this.pushStack( winnow( this, selector || [], true ) );
+ },
+ is: function( selector ) {
+ return !!winnow(
+ this,
+
+ // If this is a positional/relative selector, check membership in the returned set
+ // so $("p:first").is("p:last") won't return true for a doc with two "p".
+ typeof selector === "string" && rneedsContext.test( selector ) ?
+ jQuery( selector ) :
+ selector || [],
+ false
+ ).length;
+ }
+} );
+
+
+// Initialize a jQuery object
+
+
+// A central reference to the root jQuery(document)
+var rootjQuery,
+
+ // A simple way to check for HTML strings
+ // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+ // Strict HTML recognition (#11290: must start with <)
+ // Shortcut simple #id case for speed
+ rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
+
+ init = jQuery.fn.init = function( selector, context, root ) {
+ var match, elem;
+
+ // HANDLE: $(""), $(null), $(undefined), $(false)
+ if ( !selector ) {
+ return this;
+ }
+
+ // Method init() accepts an alternate rootjQuery
+ // so migrate can support jQuery.sub (gh-2101)
+ root = root || rootjQuery;
+
+ // Handle HTML strings
+ if ( typeof selector === "string" ) {
+ if ( selector[ 0 ] === "<" &&
+ selector[ selector.length - 1 ] === ">" &&
+ selector.length >= 3 ) {
+
+ // Assume that strings that start and end with <> are HTML and skip the regex check
+ match = [ null, selector, null ];
+
+ } else {
+ match = rquickExpr.exec( selector );
+ }
+
+ // Match html or make sure no context is specified for #id
+ if ( match && ( match[ 1 ] || !context ) ) {
+
+ // HANDLE: $(html) -> $(array)
+ if ( match[ 1 ] ) {
+ context = context instanceof jQuery ? context[ 0 ] : context;
+
+ // Option to run scripts is true for back-compat
+ // Intentionally let the error be thrown if parseHTML is not present
+ jQuery.merge( this, jQuery.parseHTML(
+ match[ 1 ],
+ context && context.nodeType ? context.ownerDocument || context : document,
+ true
+ ) );
+
+ // HANDLE: $(html, props)
+ if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
+ for ( match in context ) {
+
+ // Properties of context are called as methods if possible
+ if ( isFunction( this[ match ] ) ) {
+ this[ match ]( context[ match ] );
+
+ // ...and otherwise set as attributes
+ } else {
+ this.attr( match, context[ match ] );
+ }
+ }
+ }
+
+ return this;
+
+ // HANDLE: $(#id)
+ } else {
+ elem = document.getElementById( match[ 2 ] );
+
+ if ( elem ) {
+
+ // Inject the element directly into the jQuery object
+ this[ 0 ] = elem;
+ this.length = 1;
+ }
+ return this;
+ }
+
+ // HANDLE: $(expr, $(...))
+ } else if ( !context || context.jquery ) {
+ return ( context || root ).find( selector );
+
+ // HANDLE: $(expr, context)
+ // (which is just equivalent to: $(context).find(expr)
+ } else {
+ return this.constructor( context ).find( selector );
+ }
+
+ // HANDLE: $(DOMElement)
+ } else if ( selector.nodeType ) {
+ this[ 0 ] = selector;
+ this.length = 1;
+ return this;
+
+ // HANDLE: $(function)
+ // Shortcut for document ready
+ } else if ( isFunction( selector ) ) {
+ return root.ready !== undefined ?
+ root.ready( selector ) :
+
+ // Execute immediately if ready is not present
+ selector( jQuery );
+ }
+
+ return jQuery.makeArray( selector, this );
+ };
+
+// Give the init function the jQuery prototype for later instantiation
+init.prototype = jQuery.fn;
+
+// Initialize central reference
+rootjQuery = jQuery( document );
+
+
+var rparentsprev = /^(?:parents|prev(?:Until|All))/,
+
+ // Methods guaranteed to produce a unique set when starting from a unique set
+ guaranteedUnique = {
+ children: true,
+ contents: true,
+ next: true,
+ prev: true
+ };
+
+jQuery.fn.extend( {
+ has: function( target ) {
+ var targets = jQuery( target, this ),
+ l = targets.length;
+
+ return this.filter( function() {
+ var i = 0;
+ for ( ; i < l; i++ ) {
+ if ( jQuery.contains( this, targets[ i ] ) ) {
+ return true;
+ }
+ }
+ } );
+ },
+
+ closest: function( selectors, context ) {
+ var cur,
+ i = 0,
+ l = this.length,
+ matched = [],
+ targets = typeof selectors !== "string" && jQuery( selectors );
+
+ // Positional selectors never match, since there's no _selection_ context
+ if ( !rneedsContext.test( selectors ) ) {
+ for ( ; i < l; i++ ) {
+ for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
+
+ // Always skip document fragments
+ if ( cur.nodeType < 11 && ( targets ?
+ targets.index( cur ) > -1 :
+
+ // Don't pass non-elements to Sizzle
+ cur.nodeType === 1 &&
+ jQuery.find.matchesSelector( cur, selectors ) ) ) {
+
+ matched.push( cur );
+ break;
+ }
+ }
+ }
+ }
+
+ return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
+ },
+
+ // Determine the position of an element within the set
+ index: function( elem ) {
+
+ // No argument, return index in parent
+ if ( !elem ) {
+ return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
+ }
+
+ // Index in selector
+ if ( typeof elem === "string" ) {
+ return indexOf.call( jQuery( elem ), this[ 0 ] );
+ }
+
+ // Locate the position of the desired element
+ return indexOf.call( this,
+
+ // If it receives a jQuery object, the first element is used
+ elem.jquery ? elem[ 0 ] : elem
+ );
+ },
+
+ add: function( selector, context ) {
+ return this.pushStack(
+ jQuery.uniqueSort(
+ jQuery.merge( this.get(), jQuery( selector, context ) )
+ )
+ );
+ },
+
+ addBack: function( selector ) {
+ return this.add( selector == null ?
+ this.prevObject : this.prevObject.filter( selector )
+ );
+ }
+} );
+
+function sibling( cur, dir ) {
+ while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
+ return cur;
+}
+
+jQuery.each( {
+ parent: function( elem ) {
+ var parent = elem.parentNode;
+ return parent && parent.nodeType !== 11 ? parent : null;
+ },
+ parents: function( elem ) {
+ return dir( elem, "parentNode" );
+ },
+ parentsUntil: function( elem, i, until ) {
+ return dir( elem, "parentNode", until );
+ },
+ next: function( elem ) {
+ return sibling( elem, "nextSibling" );
+ },
+ prev: function( elem ) {
+ return sibling( elem, "previousSibling" );
+ },
+ nextAll: function( elem ) {
+ return dir( elem, "nextSibling" );
+ },
+ prevAll: function( elem ) {
+ return dir( elem, "previousSibling" );
+ },
+ nextUntil: function( elem, i, until ) {
+ return dir( elem, "nextSibling", until );
+ },
+ prevUntil: function( elem, i, until ) {
+ return dir( elem, "previousSibling", until );
+ },
+ siblings: function( elem ) {
+ return siblings( ( elem.parentNode || {} ).firstChild, elem );
+ },
+ children: function( elem ) {
+ return siblings( elem.firstChild );
+ },
+ contents: function( elem ) {
+ if ( nodeName( elem, "iframe" ) ) {
+ return elem.contentDocument;
+ }
+
+ // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
+ // Treat the template element as a regular one in browsers that
+ // don't support it.
+ if ( nodeName( elem, "template" ) ) {
+ elem = elem.content || elem;
+ }
+
+ return jQuery.merge( [], elem.childNodes );
+ }
+}, function( name, fn ) {
+ jQuery.fn[ name ] = function( until, selector ) {
+ var matched = jQuery.map( this, fn, until );
+
+ if ( name.slice( -5 ) !== "Until" ) {
+ selector = until;
+ }
+
+ if ( selector && typeof selector === "string" ) {
+ matched = jQuery.filter( selector, matched );
+ }
+
+ if ( this.length > 1 ) {
+
+ // Remove duplicates
+ if ( !guaranteedUnique[ name ] ) {
+ jQuery.uniqueSort( matched );
+ }
+
+ // Reverse order for parents* and prev-derivatives
+ if ( rparentsprev.test( name ) ) {
+ matched.reverse();
+ }
+ }
+
+ return this.pushStack( matched );
+ };
+} );
+var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
+
+
+
+// Convert String-formatted options into Object-formatted ones
+function createOptions( options ) {
+ var object = {};
+ jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
+ object[ flag ] = true;
+ } );
+ return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ * options: an optional list of space-separated options that will change how
+ * the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ * once: will ensure the callback list can only be fired once (like a Deferred)
+ *
+ * memory: will keep track of previous values and will call any callback added
+ * after the list has been fired right away with the latest "memorized"
+ * values (like a Deferred)
+ *
+ * unique: will ensure a callback can only be added once (no duplicate in the list)
+ *
+ * stopOnFalse: interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+ // Convert options from String-formatted to Object-formatted if needed
+ // (we check in cache first)
+ options = typeof options === "string" ?
+ createOptions( options ) :
+ jQuery.extend( {}, options );
+
+ var // Flag to know if list is currently firing
+ firing,
+
+ // Last fire value for non-forgettable lists
+ memory,
+
+ // Flag to know if list was already fired
+ fired,
+
+ // Flag to prevent firing
+ locked,
+
+ // Actual callback list
+ list = [],
+
+ // Queue of execution data for repeatable lists
+ queue = [],
+
+ // Index of currently firing callback (modified by add/remove as needed)
+ firingIndex = -1,
+
+ // Fire callbacks
+ fire = function() {
+
+ // Enforce single-firing
+ locked = locked || options.once;
+
+ // Execute callbacks for all pending executions,
+ // respecting firingIndex overrides and runtime changes
+ fired = firing = true;
+ for ( ; queue.length; firingIndex = -1 ) {
+ memory = queue.shift();
+ while ( ++firingIndex < list.length ) {
+
+ // Run callback and check for early termination
+ if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
+ options.stopOnFalse ) {
+
+ // Jump to end and forget the data so .add doesn't re-fire
+ firingIndex = list.length;
+ memory = false;
+ }
+ }
+ }
+
+ // Forget the data if we're done with it
+ if ( !options.memory ) {
+ memory = false;
+ }
+
+ firing = false;
+
+ // Clean up if we're done firing for good
+ if ( locked ) {
+
+ // Keep an empty list if we have data for future add calls
+ if ( memory ) {
+ list = [];
+
+ // Otherwise, this object is spent
+ } else {
+ list = "";
+ }
+ }
+ },
+
+ // Actual Callbacks object
+ self = {
+
+ // Add a callback or a collection of callbacks to the list
+ add: function() {
+ if ( list ) {
+
+ // If we have memory from a past run, we should fire after adding
+ if ( memory && !firing ) {
+ firingIndex = list.length - 1;
+ queue.push( memory );
+ }
+
+ ( function add( args ) {
+ jQuery.each( args, function( _, arg ) {
+ if ( isFunction( arg ) ) {
+ if ( !options.unique || !self.has( arg ) ) {
+ list.push( arg );
+ }
+ } else if ( arg && arg.length && toType( arg ) !== "string" ) {
+
+ // Inspect recursively
+ add( arg );
+ }
+ } );
+ } )( arguments );
+
+ if ( memory && !firing ) {
+ fire();
+ }
+ }
+ return this;
+ },
+
+ // Remove a callback from the list
+ remove: function() {
+ jQuery.each( arguments, function( _, arg ) {
+ var index;
+ while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+ list.splice( index, 1 );
+
+ // Handle firing indexes
+ if ( index <= firingIndex ) {
+ firingIndex--;
+ }
+ }
+ } );
+ return this;
+ },
+
+ // Check if a given callback is in the list.
+ // If no argument is given, return whether or not list has callbacks attached.
+ has: function( fn ) {
+ return fn ?
+ jQuery.inArray( fn, list ) > -1 :
+ list.length > 0;
+ },
+
+ // Remove all callbacks from the list
+ empty: function() {
+ if ( list ) {
+ list = [];
+ }
+ return this;
+ },
+
+ // Disable .fire and .add
+ // Abort any current/pending executions
+ // Clear all callbacks and values
+ disable: function() {
+ locked = queue = [];
+ list = memory = "";
+ return this;
+ },
+ disabled: function() {
+ return !list;
+ },
+
+ // Disable .fire
+ // Also disable .add unless we have memory (since it would have no effect)
+ // Abort any pending executions
+ lock: function() {
+ locked = queue = [];
+ if ( !memory && !firing ) {
+ list = memory = "";
+ }
+ return this;
+ },
+ locked: function() {
+ return !!locked;
+ },
+
+ // Call all callbacks with the given context and arguments
+ fireWith: function( context, args ) {
+ if ( !locked ) {
+ args = args || [];
+ args = [ context, args.slice ? args.slice() : args ];
+ queue.push( args );
+ if ( !firing ) {
+ fire();
+ }
+ }
+ return this;
+ },
+
+ // Call all the callbacks with the given arguments
+ fire: function() {
+ self.fireWith( this, arguments );
+ return this;
+ },
+
+ // To know if the callbacks have already been called at least once
+ fired: function() {
+ return !!fired;
+ }
+ };
+
+ return self;
+};
+
+
+function Identity( v ) {
+ return v;
+}
+function Thrower( ex ) {
+ throw ex;
+}
+
+function adoptValue( value, resolve, reject, noValue ) {
+ var method;
+
+ try {
+
+ // Check for promise aspect first to privilege synchronous behavior
+ if ( value && isFunction( ( method = value.promise ) ) ) {
+ method.call( value ).done( resolve ).fail( reject );
+
+ // Other thenables
+ } else if ( value && isFunction( ( method = value.then ) ) ) {
+ method.call( value, resolve, reject );
+
+ // Other non-thenables
+ } else {
+
+ // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
+ // * false: [ value ].slice( 0 ) => resolve( value )
+ // * true: [ value ].slice( 1 ) => resolve()
+ resolve.apply( undefined, [ value ].slice( noValue ) );
+ }
+
+ // For Promises/A+, convert exceptions into rejections
+ // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
+ // Deferred#then to conditionally suppress rejection.
+ } catch ( value ) {
+
+ // Support: Android 4.0 only
+ // Strict mode functions invoked without .call/.apply get global-object context
+ reject.apply( undefined, [ value ] );
+ }
+}
+
+jQuery.extend( {
+
+ Deferred: function( func ) {
+ var tuples = [
+
+ // action, add listener, callbacks,
+ // ... .then handlers, argument index, [final state]
+ [ "notify", "progress", jQuery.Callbacks( "memory" ),
+ jQuery.Callbacks( "memory" ), 2 ],
+ [ "resolve", "done", jQuery.Callbacks( "once memory" ),
+ jQuery.Callbacks( "once memory" ), 0, "resolved" ],
+ [ "reject", "fail", jQuery.Callbacks( "once memory" ),
+ jQuery.Callbacks( "once memory" ), 1, "rejected" ]
+ ],
+ state = "pending",
+ promise = {
+ state: function() {
+ return state;
+ },
+ always: function() {
+ deferred.done( arguments ).fail( arguments );
+ return this;
+ },
+ "catch": function( fn ) {
+ return promise.then( null, fn );
+ },
+
+ // Keep pipe for back-compat
+ pipe: function( /* fnDone, fnFail, fnProgress */ ) {
+ var fns = arguments;
+
+ return jQuery.Deferred( function( newDefer ) {
+ jQuery.each( tuples, function( i, tuple ) {
+
+ // Map tuples (progress, done, fail) to arguments (done, fail, progress)
+ var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
+
+ // deferred.progress(function() { bind to newDefer or newDefer.notify })
+ // deferred.done(function() { bind to newDefer or newDefer.resolve })
+ // deferred.fail(function() { bind to newDefer or newDefer.reject })
+ deferred[ tuple[ 1 ] ]( function() {
+ var returned = fn && fn.apply( this, arguments );
+ if ( returned && isFunction( returned.promise ) ) {
+ returned.promise()
+ .progress( newDefer.notify )
+ .done( newDefer.resolve )
+ .fail( newDefer.reject );
+ } else {
+ newDefer[ tuple[ 0 ] + "With" ](
+ this,
+ fn ? [ returned ] : arguments
+ );
+ }
+ } );
+ } );
+ fns = null;
+ } ).promise();
+ },
+ then: function( onFulfilled, onRejected, onProgress ) {
+ var maxDepth = 0;
+ function resolve( depth, deferred, handler, special ) {
+ return function() {
+ var that = this,
+ args = arguments,
+ mightThrow = function() {
+ var returned, then;
+
+ // Support: Promises/A+ section 2.3.3.3.3
+ // https://promisesaplus.com/#point-59
+ // Ignore double-resolution attempts
+ if ( depth < maxDepth ) {
+ return;
+ }
+
+ returned = handler.apply( that, args );
+
+ // Support: Promises/A+ section 2.3.1
+ // https://promisesaplus.com/#point-48
+ if ( returned === deferred.promise() ) {
+ throw new TypeError( "Thenable self-resolution" );
+ }
+
+ // Support: Promises/A+ sections 2.3.3.1, 3.5
+ // https://promisesaplus.com/#point-54
+ // https://promisesaplus.com/#point-75
+ // Retrieve `then` only once
+ then = returned &&
+
+ // Support: Promises/A+ section 2.3.4
+ // https://promisesaplus.com/#point-64
+ // Only check objects and functions for thenability
+ ( typeof returned === "object" ||
+ typeof returned === "function" ) &&
+ returned.then;
+
+ // Handle a returned thenable
+ if ( isFunction( then ) ) {
+
+ // Special processors (notify) just wait for resolution
+ if ( special ) {
+ then.call(
+ returned,
+ resolve( maxDepth, deferred, Identity, special ),
+ resolve( maxDepth, deferred, Thrower, special )
+ );
+
+ // Normal processors (resolve) also hook into progress
+ } else {
+
+ // ...and disregard older resolution values
+ maxDepth++;
+
+ then.call(
+ returned,
+ resolve( maxDepth, deferred, Identity, special ),
+ resolve( maxDepth, deferred, Thrower, special ),
+ resolve( maxDepth, deferred, Identity,
+ deferred.notifyWith )
+ );
+ }
+
+ // Handle all other returned values
+ } else {
+
+ // Only substitute handlers pass on context
+ // and multiple values (non-spec behavior)
+ if ( handler !== Identity ) {
+ that = undefined;
+ args = [ returned ];
+ }
+
+ // Process the value(s)
+ // Default process is resolve
+ ( special || deferred.resolveWith )( that, args );
+ }
+ },
+
+ // Only normal processors (resolve) catch and reject exceptions
+ process = special ?
+ mightThrow :
+ function() {
+ try {
+ mightThrow();
+ } catch ( e ) {
+
+ if ( jQuery.Deferred.exceptionHook ) {
+ jQuery.Deferred.exceptionHook( e,
+ process.stackTrace );
+ }
+
+ // Support: Promises/A+ section 2.3.3.3.4.1
+ // https://promisesaplus.com/#point-61
+ // Ignore post-resolution exceptions
+ if ( depth + 1 >= maxDepth ) {
+
+ // Only substitute handlers pass on context
+ // and multiple values (non-spec behavior)
+ if ( handler !== Thrower ) {
+ that = undefined;
+ args = [ e ];
+ }
+
+ deferred.rejectWith( that, args );
+ }
+ }
+ };
+
+ // Support: Promises/A+ section 2.3.3.3.1
+ // https://promisesaplus.com/#point-57
+ // Re-resolve promises immediately to dodge false rejection from
+ // subsequent errors
+ if ( depth ) {
+ process();
+ } else {
+
+ // Call an optional hook to record the stack, in case of exception
+ // since it's otherwise lost when execution goes async
+ if ( jQuery.Deferred.getStackHook ) {
+ process.stackTrace = jQuery.Deferred.getStackHook();
+ }
+ window.setTimeout( process );
+ }
+ };
+ }
+
+ return jQuery.Deferred( function( newDefer ) {
+
+ // progress_handlers.add( ... )
+ tuples[ 0 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ isFunction( onProgress ) ?
+ onProgress :
+ Identity,
+ newDefer.notifyWith
+ )
+ );
+
+ // fulfilled_handlers.add( ... )
+ tuples[ 1 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ isFunction( onFulfilled ) ?
+ onFulfilled :
+ Identity
+ )
+ );
+
+ // rejected_handlers.add( ... )
+ tuples[ 2 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ isFunction( onRejected ) ?
+ onRejected :
+ Thrower
+ )
+ );
+ } ).promise();
+ },
+
+ // Get a promise for this deferred
+ // If obj is provided, the promise aspect is added to the object
+ promise: function( obj ) {
+ return obj != null ? jQuery.extend( obj, promise ) : promise;
+ }
+ },
+ deferred = {};
+
+ // Add list-specific methods
+ jQuery.each( tuples, function( i, tuple ) {
+ var list = tuple[ 2 ],
+ stateString = tuple[ 5 ];
+
+ // promise.progress = list.add
+ // promise.done = list.add
+ // promise.fail = list.add
+ promise[ tuple[ 1 ] ] = list.add;
+
+ // Handle state
+ if ( stateString ) {
+ list.add(
+ function() {
+
+ // state = "resolved" (i.e., fulfilled)
+ // state = "rejected"
+ state = stateString;
+ },
+
+ // rejected_callbacks.disable
+ // fulfilled_callbacks.disable
+ tuples[ 3 - i ][ 2 ].disable,
+
+ // rejected_handlers.disable
+ // fulfilled_handlers.disable
+ tuples[ 3 - i ][ 3 ].disable,
+
+ // progress_callbacks.lock
+ tuples[ 0 ][ 2 ].lock,
+
+ // progress_handlers.lock
+ tuples[ 0 ][ 3 ].lock
+ );
+ }
+
+ // progress_handlers.fire
+ // fulfilled_handlers.fire
+ // rejected_handlers.fire
+ list.add( tuple[ 3 ].fire );
+
+ // deferred.notify = function() { deferred.notifyWith(...) }
+ // deferred.resolve = function() { deferred.resolveWith(...) }
+ // deferred.reject = function() { deferred.rejectWith(...) }
+ deferred[ tuple[ 0 ] ] = function() {
+ deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
+ return this;
+ };
+
+ // deferred.notifyWith = list.fireWith
+ // deferred.resolveWith = list.fireWith
+ // deferred.rejectWith = list.fireWith
+ deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
+ } );
+
+ // Make the deferred a promise
+ promise.promise( deferred );
+
+ // Call given func if any
+ if ( func ) {
+ func.call( deferred, deferred );
+ }
+
+ // All done!
+ return deferred;
+ },
+
+ // Deferred helper
+ when: function( singleValue ) {
+ var
+
+ // count of uncompleted subordinates
+ remaining = arguments.length,
+
+ // count of unprocessed arguments
+ i = remaining,
+
+ // subordinate fulfillment data
+ resolveContexts = Array( i ),
+ resolveValues = slice.call( arguments ),
+
+ // the master Deferred
+ master = jQuery.Deferred(),
+
+ // subordinate callback factory
+ updateFunc = function( i ) {
+ return function( value ) {
+ resolveContexts[ i ] = this;
+ resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
+ if ( !( --remaining ) ) {
+ master.resolveWith( resolveContexts, resolveValues );
+ }
+ };
+ };
+
+ // Single- and empty arguments are adopted like Promise.resolve
+ if ( remaining <= 1 ) {
+ adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
+ !remaining );
+
+ // Use .then() to unwrap secondary thenables (cf. gh-3000)
+ if ( master.state() === "pending" ||
+ isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
+
+ return master.then();
+ }
+ }
+
+ // Multiple arguments are aggregated like Promise.all array elements
+ while ( i-- ) {
+ adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
+ }
+
+ return master.promise();
+ }
+} );
+
+
+// These usually indicate a programmer mistake during development,
+// warn about them ASAP rather than swallowing them by default.
+var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
+
+jQuery.Deferred.exceptionHook = function( error, stack ) {
+
+ // Support: IE 8 - 9 only
+ // Console exists when dev tools are open, which can happen at any time
+ if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
+ window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
+ }
+};
+
+
+
+
+jQuery.readyException = function( error ) {
+ window.setTimeout( function() {
+ throw error;
+ } );
+};
+
+
+
+
+// The deferred used on DOM ready
+var readyList = jQuery.Deferred();
+
+jQuery.fn.ready = function( fn ) {
+
+ readyList
+ .then( fn )
+
+ // Wrap jQuery.readyException in a function so that the lookup
+ // happens at the time of error handling instead of callback
+ // registration.
+ .catch( function( error ) {
+ jQuery.readyException( error );
+ } );
+
+ return this;
+};
+
+jQuery.extend( {
+
+ // Is the DOM ready to be used? Set to true once it occurs.
+ isReady: false,
+
+ // A counter to track how many items to wait for before
+ // the ready event fires. See #6781
+ readyWait: 1,
+
+ // Handle when the DOM is ready
+ ready: function( wait ) {
+
+ // Abort if there are pending holds or we're already ready
+ if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+ return;
+ }
+
+ // Remember that the DOM is ready
+ jQuery.isReady = true;
+
+ // If a normal DOM Ready event fired, decrement, and wait if need be
+ if ( wait !== true && --jQuery.readyWait > 0 ) {
+ return;
+ }
+
+ // If there are functions bound, to execute
+ readyList.resolveWith( document, [ jQuery ] );
+ }
+} );
+
+jQuery.ready.then = readyList.then;
+
+// The ready event handler and self cleanup method
+function completed() {
+ document.removeEventListener( "DOMContentLoaded", completed );
+ window.removeEventListener( "load", completed );
+ jQuery.ready();
+}
+
+// Catch cases where $(document).ready() is called
+// after the browser event has already occurred.
+// Support: IE <=9 - 10 only
+// Older IE sometimes signals "interactive" too soon
+if ( document.readyState === "complete" ||
+ ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
+
+ // Handle it asynchronously to allow scripts the opportunity to delay ready
+ window.setTimeout( jQuery.ready );
+
+} else {
+
+ // Use the handy event callback
+ document.addEventListener( "DOMContentLoaded", completed );
+
+ // A fallback to window.onload, that will always work
+ window.addEventListener( "load", completed );
+}
+
+
+
+
+// Multifunctional method to get and set values of a collection
+// The value/s can optionally be executed if it's a function
+var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
+ var i = 0,
+ len = elems.length,
+ bulk = key == null;
+
+ // Sets many values
+ if ( toType( key ) === "object" ) {
+ chainable = true;
+ for ( i in key ) {
+ access( elems, fn, i, key[ i ], true, emptyGet, raw );
+ }
+
+ // Sets one value
+ } else if ( value !== undefined ) {
+ chainable = true;
+
+ if ( !isFunction( value ) ) {
+ raw = true;
+ }
+
+ if ( bulk ) {
+
+ // Bulk operations run against the entire set
+ if ( raw ) {
+ fn.call( elems, value );
+ fn = null;
+
+ // ...except when executing function values
+ } else {
+ bulk = fn;
+ fn = function( elem, key, value ) {
+ return bulk.call( jQuery( elem ), value );
+ };
+ }
+ }
+
+ if ( fn ) {
+ for ( ; i < len; i++ ) {
+ fn(
+ elems[ i ], key, raw ?
+ value :
+ value.call( elems[ i ], i, fn( elems[ i ], key ) )
+ );
+ }
+ }
+ }
+
+ if ( chainable ) {
+ return elems;
+ }
+
+ // Gets
+ if ( bulk ) {
+ return fn.call( elems );
+ }
+
+ return len ? fn( elems[ 0 ], key ) : emptyGet;
+};
+
+
+// Matches dashed string for camelizing
+var rmsPrefix = /^-ms-/,
+ rdashAlpha = /-([a-z])/g;
+
+// Used by camelCase as callback to replace()
+function fcamelCase( all, letter ) {
+ return letter.toUpperCase();
+}
+
+// Convert dashed to camelCase; used by the css and data modules
+// Support: IE <=9 - 11, Edge 12 - 15
+// Microsoft forgot to hump their vendor prefix (#9572)
+function camelCase( string ) {
+ return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+}
+var acceptData = function( owner ) {
+
+ // Accepts only:
+ // - Node
+ // - Node.ELEMENT_NODE
+ // - Node.DOCUMENT_NODE
+ // - Object
+ // - Any
+ return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
+};
+
+
+
+
+function Data() {
+ this.expando = jQuery.expando + Data.uid++;
+}
+
+Data.uid = 1;
+
+Data.prototype = {
+
+ cache: function( owner ) {
+
+ // Check if the owner object already has a cache
+ var value = owner[ this.expando ];
+
+ // If not, create one
+ if ( !value ) {
+ value = {};
+
+ // We can accept data for non-element nodes in modern browsers,
+ // but we should not, see #8335.
+ // Always return an empty object.
+ if ( acceptData( owner ) ) {
+
+ // If it is a node unlikely to be stringify-ed or looped over
+ // use plain assignment
+ if ( owner.nodeType ) {
+ owner[ this.expando ] = value;
+
+ // Otherwise secure it in a non-enumerable property
+ // configurable must be true to allow the property to be
+ // deleted when data is removed
+ } else {
+ Object.defineProperty( owner, this.expando, {
+ value: value,
+ configurable: true
+ } );
+ }
+ }
+ }
+
+ return value;
+ },
+ set: function( owner, data, value ) {
+ var prop,
+ cache = this.cache( owner );
+
+ // Handle: [ owner, key, value ] args
+ // Always use camelCase key (gh-2257)
+ if ( typeof data === "string" ) {
+ cache[ camelCase( data ) ] = value;
+
+ // Handle: [ owner, { properties } ] args
+ } else {
+
+ // Copy the properties one-by-one to the cache object
+ for ( prop in data ) {
+ cache[ camelCase( prop ) ] = data[ prop ];
+ }
+ }
+ return cache;
+ },
+ get: function( owner, key ) {
+ return key === undefined ?
+ this.cache( owner ) :
+
+ // Always use camelCase key (gh-2257)
+ owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
+ },
+ access: function( owner, key, value ) {
+
+ // In cases where either:
+ //
+ // 1. No key was specified
+ // 2. A string key was specified, but no value provided
+ //
+ // Take the "read" path and allow the get method to determine
+ // which value to return, respectively either:
+ //
+ // 1. The entire cache object
+ // 2. The data stored at the key
+ //
+ if ( key === undefined ||
+ ( ( key && typeof key === "string" ) && value === undefined ) ) {
+
+ return this.get( owner, key );
+ }
+
+ // When the key is not a string, or both a key and value
+ // are specified, set or extend (existing objects) with either:
+ //
+ // 1. An object of properties
+ // 2. A key and value
+ //
+ this.set( owner, key, value );
+
+ // Since the "set" path can have two possible entry points
+ // return the expected data based on which path was taken[*]
+ return value !== undefined ? value : key;
+ },
+ remove: function( owner, key ) {
+ var i,
+ cache = owner[ this.expando ];
+
+ if ( cache === undefined ) {
+ return;
+ }
+
+ if ( key !== undefined ) {
+
+ // Support array or space separated string of keys
+ if ( Array.isArray( key ) ) {
+
+ // If key is an array of keys...
+ // We always set camelCase keys, so remove that.
+ key = key.map( camelCase );
+ } else {
+ key = camelCase( key );
+
+ // If a key with the spaces exists, use it.
+ // Otherwise, create an array by matching non-whitespace
+ key = key in cache ?
+ [ key ] :
+ ( key.match( rnothtmlwhite ) || [] );
+ }
+
+ i = key.length;
+
+ while ( i-- ) {
+ delete cache[ key[ i ] ];
+ }
+ }
+
+ // Remove the expando if there's no more data
+ if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
+
+ // Support: Chrome <=35 - 45
+ // Webkit & Blink performance suffers when deleting properties
+ // from DOM nodes, so set to undefined instead
+ // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
+ if ( owner.nodeType ) {
+ owner[ this.expando ] = undefined;
+ } else {
+ delete owner[ this.expando ];
+ }
+ }
+ },
+ hasData: function( owner ) {
+ var cache = owner[ this.expando ];
+ return cache !== undefined && !jQuery.isEmptyObject( cache );
+ }
+};
+var dataPriv = new Data();
+
+var dataUser = new Data();
+
+
+
+// Implementation Summary
+//
+// 1. Enforce API surface and semantic compatibility with 1.9.x branch
+// 2. Improve the module's maintainability by reducing the storage
+// paths to a single mechanism.
+// 3. Use the same single mechanism to support "private" and "user" data.
+// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
+// 5. Avoid exposing implementation details on user objects (eg. expando properties)
+// 6. Provide a clear path for implementation upgrade to WeakMap in 2014
+
+var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
+ rmultiDash = /[A-Z]/g;
+
+function getData( data ) {
+ if ( data === "true" ) {
+ return true;
+ }
+
+ if ( data === "false" ) {
+ return false;
+ }
+
+ if ( data === "null" ) {
+ return null;
+ }
+
+ // Only convert to a number if it doesn't change the string
+ if ( data === +data + "" ) {
+ return +data;
+ }
+
+ if ( rbrace.test( data ) ) {
+ return JSON.parse( data );
+ }
+
+ return data;
+}
+
+function dataAttr( elem, key, data ) {
+ var name;
+
+ // If nothing was found internally, try to fetch any
+ // data from the HTML5 data-* attribute
+ if ( data === undefined && elem.nodeType === 1 ) {
+ name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
+ data = elem.getAttribute( name );
+
+ if ( typeof data === "string" ) {
+ try {
+ data = getData( data );
+ } catch ( e ) {}
+
+ // Make sure we set the data so it isn't changed later
+ dataUser.set( elem, key, data );
+ } else {
+ data = undefined;
+ }
+ }
+ return data;
+}
+
+jQuery.extend( {
+ hasData: function( elem ) {
+ return dataUser.hasData( elem ) || dataPriv.hasData( elem );
+ },
+
+ data: function( elem, name, data ) {
+ return dataUser.access( elem, name, data );
+ },
+
+ removeData: function( elem, name ) {
+ dataUser.remove( elem, name );
+ },
+
+ // TODO: Now that all calls to _data and _removeData have been replaced
+ // with direct calls to dataPriv methods, these can be deprecated.
+ _data: function( elem, name, data ) {
+ return dataPriv.access( elem, name, data );
+ },
+
+ _removeData: function( elem, name ) {
+ dataPriv.remove( elem, name );
+ }
+} );
+
+jQuery.fn.extend( {
+ data: function( key, value ) {
+ var i, name, data,
+ elem = this[ 0 ],
+ attrs = elem && elem.attributes;
+
+ // Gets all values
+ if ( key === undefined ) {
+ if ( this.length ) {
+ data = dataUser.get( elem );
+
+ if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
+ i = attrs.length;
+ while ( i-- ) {
+
+ // Support: IE 11 only
+ // The attrs elements can be null (#14894)
+ if ( attrs[ i ] ) {
+ name = attrs[ i ].name;
+ if ( name.indexOf( "data-" ) === 0 ) {
+ name = camelCase( name.slice( 5 ) );
+ dataAttr( elem, name, data[ name ] );
+ }
+ }
+ }
+ dataPriv.set( elem, "hasDataAttrs", true );
+ }
+ }
+
+ return data;
+ }
+
+ // Sets multiple values
+ if ( typeof key === "object" ) {
+ return this.each( function() {
+ dataUser.set( this, key );
+ } );
+ }
+
+ return access( this, function( value ) {
+ var data;
+
+ // The calling jQuery object (element matches) is not empty
+ // (and therefore has an element appears at this[ 0 ]) and the
+ // `value` parameter was not undefined. An empty jQuery object
+ // will result in `undefined` for elem = this[ 0 ] which will
+ // throw an exception if an attempt to read a data cache is made.
+ if ( elem && value === undefined ) {
+
+ // Attempt to get data from the cache
+ // The key will always be camelCased in Data
+ data = dataUser.get( elem, key );
+ if ( data !== undefined ) {
+ return data;
+ }
+
+ // Attempt to "discover" the data in
+ // HTML5 custom data-* attrs
+ data = dataAttr( elem, key );
+ if ( data !== undefined ) {
+ return data;
+ }
+
+ // We tried really hard, but the data doesn't exist.
+ return;
+ }
+
+ // Set the data...
+ this.each( function() {
+
+ // We always store the camelCased key
+ dataUser.set( this, key, value );
+ } );
+ }, null, value, arguments.length > 1, null, true );
+ },
+
+ removeData: function( key ) {
+ return this.each( function() {
+ dataUser.remove( this, key );
+ } );
+ }
+} );
+
+
+jQuery.extend( {
+ queue: function( elem, type, data ) {
+ var queue;
+
+ if ( elem ) {
+ type = ( type || "fx" ) + "queue";
+ queue = dataPriv.get( elem, type );
+
+ // Speed up dequeue by getting out quickly if this is just a lookup
+ if ( data ) {
+ if ( !queue || Array.isArray( data ) ) {
+ queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
+ } else {
+ queue.push( data );
+ }
+ }
+ return queue || [];
+ }
+ },
+
+ dequeue: function( elem, type ) {
+ type = type || "fx";
+
+ var queue = jQuery.queue( elem, type ),
+ startLength = queue.length,
+ fn = queue.shift(),
+ hooks = jQuery._queueHooks( elem, type ),
+ next = function() {
+ jQuery.dequeue( elem, type );
+ };
+
+ // If the fx queue is dequeued, always remove the progress sentinel
+ if ( fn === "inprogress" ) {
+ fn = queue.shift();
+ startLength--;
+ }
+
+ if ( fn ) {
+
+ // Add a progress sentinel to prevent the fx queue from being
+ // automatically dequeued
+ if ( type === "fx" ) {
+ queue.unshift( "inprogress" );
+ }
+
+ // Clear up the last queue stop function
+ delete hooks.stop;
+ fn.call( elem, next, hooks );
+ }
+
+ if ( !startLength && hooks ) {
+ hooks.empty.fire();
+ }
+ },
+
+ // Not public - generate a queueHooks object, or return the current one
+ _queueHooks: function( elem, type ) {
+ var key = type + "queueHooks";
+ return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
+ empty: jQuery.Callbacks( "once memory" ).add( function() {
+ dataPriv.remove( elem, [ type + "queue", key ] );
+ } )
+ } );
+ }
+} );
+
+jQuery.fn.extend( {
+ queue: function( type, data ) {
+ var setter = 2;
+
+ if ( typeof type !== "string" ) {
+ data = type;
+ type = "fx";
+ setter--;
+ }
+
+ if ( arguments.length < setter ) {
+ return jQuery.queue( this[ 0 ], type );
+ }
+
+ return data === undefined ?
+ this :
+ this.each( function() {
+ var queue = jQuery.queue( this, type, data );
+
+ // Ensure a hooks for this queue
+ jQuery._queueHooks( this, type );
+
+ if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
+ jQuery.dequeue( this, type );
+ }
+ } );
+ },
+ dequeue: function( type ) {
+ return this.each( function() {
+ jQuery.dequeue( this, type );
+ } );
+ },
+ clearQueue: function( type ) {
+ return this.queue( type || "fx", [] );
+ },
+
+ // Get a promise resolved when queues of a certain type
+ // are emptied (fx is the type by default)
+ promise: function( type, obj ) {
+ var tmp,
+ count = 1,
+ defer = jQuery.Deferred(),
+ elements = this,
+ i = this.length,
+ resolve = function() {
+ if ( !( --count ) ) {
+ defer.resolveWith( elements, [ elements ] );
+ }
+ };
+
+ if ( typeof type !== "string" ) {
+ obj = type;
+ type = undefined;
+ }
+ type = type || "fx";
+
+ while ( i-- ) {
+ tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
+ if ( tmp && tmp.empty ) {
+ count++;
+ tmp.empty.add( resolve );
+ }
+ }
+ resolve();
+ return defer.promise( obj );
+ }
+} );
+var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
+
+var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
+
+
+var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
+
+var isHiddenWithinTree = function( elem, el ) {
+
+ // isHiddenWithinTree might be called from jQuery#filter function;
+ // in that case, element will be second argument
+ elem = el || elem;
+
+ // Inline style trumps all
+ return elem.style.display === "none" ||
+ elem.style.display === "" &&
+
+ // Otherwise, check computed style
+ // Support: Firefox <=43 - 45
+ // Disconnected elements can have computed display: none, so first confirm that elem is
+ // in the document.
+ jQuery.contains( elem.ownerDocument, elem ) &&
+
+ jQuery.css( elem, "display" ) === "none";
+ };
+
+var swap = function( elem, options, callback, args ) {
+ var ret, name,
+ old = {};
+
+ // Remember the old values, and insert the new ones
+ for ( name in options ) {
+ old[ name ] = elem.style[ name ];
+ elem.style[ name ] = options[ name ];
+ }
+
+ ret = callback.apply( elem, args || [] );
+
+ // Revert the old values
+ for ( name in options ) {
+ elem.style[ name ] = old[ name ];
+ }
+
+ return ret;
+};
+
+
+
+
+function adjustCSS( elem, prop, valueParts, tween ) {
+ var adjusted, scale,
+ maxIterations = 20,
+ currentValue = tween ?
+ function() {
+ return tween.cur();
+ } :
+ function() {
+ return jQuery.css( elem, prop, "" );
+ },
+ initial = currentValue(),
+ unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
+
+ // Starting value computation is required for potential unit mismatches
+ initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
+ rcssNum.exec( jQuery.css( elem, prop ) );
+
+ if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
+
+ // Support: Firefox <=54
+ // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
+ initial = initial / 2;
+
+ // Trust units reported by jQuery.css
+ unit = unit || initialInUnit[ 3 ];
+
+ // Iteratively approximate from a nonzero starting point
+ initialInUnit = +initial || 1;
+
+ while ( maxIterations-- ) {
+
+ // Evaluate and update our best guess (doubling guesses that zero out).
+ // Finish if the scale equals or crosses 1 (making the old*new product non-positive).
+ jQuery.style( elem, prop, initialInUnit + unit );
+ if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
+ maxIterations = 0;
+ }
+ initialInUnit = initialInUnit / scale;
+
+ }
+
+ initialInUnit = initialInUnit * 2;
+ jQuery.style( elem, prop, initialInUnit + unit );
+
+ // Make sure we update the tween properties later on
+ valueParts = valueParts || [];
+ }
+
+ if ( valueParts ) {
+ initialInUnit = +initialInUnit || +initial || 0;
+
+ // Apply relative offset (+=/-=) if specified
+ adjusted = valueParts[ 1 ] ?
+ initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
+ +valueParts[ 2 ];
+ if ( tween ) {
+ tween.unit = unit;
+ tween.start = initialInUnit;
+ tween.end = adjusted;
+ }
+ }
+ return adjusted;
+}
+
+
+var defaultDisplayMap = {};
+
+function getDefaultDisplay( elem ) {
+ var temp,
+ doc = elem.ownerDocument,
+ nodeName = elem.nodeName,
+ display = defaultDisplayMap[ nodeName ];
+
+ if ( display ) {
+ return display;
+ }
+
+ temp = doc.body.appendChild( doc.createElement( nodeName ) );
+ display = jQuery.css( temp, "display" );
+
+ temp.parentNode.removeChild( temp );
+
+ if ( display === "none" ) {
+ display = "block";
+ }
+ defaultDisplayMap[ nodeName ] = display;
+
+ return display;
+}
+
+function showHide( elements, show ) {
+ var display, elem,
+ values = [],
+ index = 0,
+ length = elements.length;
+
+ // Determine new display value for elements that need to change
+ for ( ; index < length; index++ ) {
+ elem = elements[ index ];
+ if ( !elem.style ) {
+ continue;
+ }
+
+ display = elem.style.display;
+ if ( show ) {
+
+ // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
+ // check is required in this first loop unless we have a nonempty display value (either
+ // inline or about-to-be-restored)
+ if ( display === "none" ) {
+ values[ index ] = dataPriv.get( elem, "display" ) || null;
+ if ( !values[ index ] ) {
+ elem.style.display = "";
+ }
+ }
+ if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
+ values[ index ] = getDefaultDisplay( elem );
+ }
+ } else {
+ if ( display !== "none" ) {
+ values[ index ] = "none";
+
+ // Remember what we're overwriting
+ dataPriv.set( elem, "display", display );
+ }
+ }
+ }
+
+ // Set the display of the elements in a second loop to avoid constant reflow
+ for ( index = 0; index < length; index++ ) {
+ if ( values[ index ] != null ) {
+ elements[ index ].style.display = values[ index ];
+ }
+ }
+
+ return elements;
+}
+
+jQuery.fn.extend( {
+ show: function() {
+ return showHide( this, true );
+ },
+ hide: function() {
+ return showHide( this );
+ },
+ toggle: function( state ) {
+ if ( typeof state === "boolean" ) {
+ return state ? this.show() : this.hide();
+ }
+
+ return this.each( function() {
+ if ( isHiddenWithinTree( this ) ) {
+ jQuery( this ).show();
+ } else {
+ jQuery( this ).hide();
+ }
+ } );
+ }
+} );
+var rcheckableType = ( /^(?:checkbox|radio)$/i );
+
+var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );
+
+var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );
+
+
+
+// We have to close these tags to support XHTML (#13200)
+var wrapMap = {
+
+ // Support: IE <=9 only
+ option: [ 1, "<select multiple='multiple'>", "</select>" ],
+
+ // XHTML parsers do not magically insert elements in the
+ // same way that tag soup parsers do. So we cannot shorten
+ // this by omitting <tbody> or other required elements.
+ thead: [ 1, "<table>", "</table>" ],
+ col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
+ tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+ td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+ _default: [ 0, "", "" ]
+};
+
+// Support: IE <=9 only
+wrapMap.optgroup = wrapMap.option;
+
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+
+function getAll( context, tag ) {
+
+ // Support: IE <=9 - 11 only
+ // Use typeof to avoid zero-argument method invocation on host objects (#15151)
+ var ret;
+
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ ret = context.getElementsByTagName( tag || "*" );
+
+ } else if ( typeof context.querySelectorAll !== "undefined" ) {
+ ret = context.querySelectorAll( tag || "*" );
+
+ } else {
+ ret = [];
+ }
+
+ if ( tag === undefined || tag && nodeName( context, tag ) ) {
+ return jQuery.merge( [ context ], ret );
+ }
+
+ return ret;
+}
+
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+ var i = 0,
+ l = elems.length;
+
+ for ( ; i < l; i++ ) {
+ dataPriv.set(
+ elems[ i ],
+ "globalEval",
+ !refElements || dataPriv.get( refElements[ i ], "globalEval" )
+ );
+ }
+}
+
+
+var rhtml = /<|&#?\w+;/;
+
+function buildFragment( elems, context, scripts, selection, ignored ) {
+ var elem, tmp, tag, wrap, contains, j,
+ fragment = context.createDocumentFragment(),
+ nodes = [],
+ i = 0,
+ l = elems.length;
+
+ for ( ; i < l; i++ ) {
+ elem = elems[ i ];
+
+ if ( elem || elem === 0 ) {
+
+ // Add nodes directly
+ if ( toType( elem ) === "object" ) {
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+ // Convert non-html into a text node
+ } else if ( !rhtml.test( elem ) ) {
+ nodes.push( context.createTextNode( elem ) );
+
+ // Convert html into DOM nodes
+ } else {
+ tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
+
+ // Deserialize a standard representation
+ tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
+ wrap = wrapMap[ tag ] || wrapMap._default;
+ tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
+
+ // Descend through wrappers to the right content
+ j = wrap[ 0 ];
+ while ( j-- ) {
+ tmp = tmp.lastChild;
+ }
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( nodes, tmp.childNodes );
+
+ // Remember the top-level container
+ tmp = fragment.firstChild;
+
+ // Ensure the created nodes are orphaned (#12392)
+ tmp.textContent = "";
+ }
+ }
+ }
+
+ // Remove wrapper from fragment
+ fragment.textContent = "";
+
+ i = 0;
+ while ( ( elem = nodes[ i++ ] ) ) {
+
+ // Skip elements already in the context collection (trac-4087)
+ if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
+ if ( ignored ) {
+ ignored.push( elem );
+ }
+ continue;
+ }
+
+ contains = jQuery.contains( elem.ownerDocument, elem );
+
+ // Append to fragment
+ tmp = getAll( fragment.appendChild( elem ), "script" );
+
+ // Preserve script evaluation history
+ if ( contains ) {
+ setGlobalEval( tmp );
+ }
+
+ // Capture executables
+ if ( scripts ) {
+ j = 0;
+ while ( ( elem = tmp[ j++ ] ) ) {
+ if ( rscriptType.test( elem.type || "" ) ) {
+ scripts.push( elem );
+ }
+ }
+ }
+ }
+
+ return fragment;
+}
+
+
+( function() {
+ var fragment = document.createDocumentFragment(),
+ div = fragment.appendChild( document.createElement( "div" ) ),
+ input = document.createElement( "input" );
+
+ // Support: Android 4.0 - 4.3 only
+ // Check state lost if the name is set (#11217)
+ // Support: Windows Web Apps (WWA)
+ // `name` and `type` must use .setAttribute for WWA (#14901)
+ input.setAttribute( "type", "radio" );
+ input.setAttribute( "checked", "checked" );
+ input.setAttribute( "name", "t" );
+
+ div.appendChild( input );
+
+ // Support: Android <=4.1 only
+ // Older WebKit doesn't clone checked state correctly in fragments
+ support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+ // Support: IE <=11 only
+ // Make sure textarea (and checkbox) defaultValue is properly cloned
+ div.innerHTML = "<textarea>x</textarea>";
+ support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
+} )();
+var documentElement = document.documentElement;
+
+
+
+var
+ rkeyEvent = /^key/,
+ rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
+ rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
+
+function returnTrue() {
+ return true;
+}
+
+function returnFalse() {
+ return false;
+}
+
+// Support: IE <=9 only
+// See #13393 for more info
+function safeActiveElement() {
+ try {
+ return document.activeElement;
+ } catch ( err ) { }
+}
+
+function on( elem, types, selector, data, fn, one ) {
+ var origFn, type;
+
+ // Types can be a map of types/handlers
+ if ( typeof types === "object" ) {
+
+ // ( types-Object, selector, data )
+ if ( typeof selector !== "string" ) {
+
+ // ( types-Object, data )
+ data = data || selector;
+ selector = undefined;
+ }
+ for ( type in types ) {
+ on( elem, type, selector, data, types[ type ], one );
+ }
+ return elem;
+ }
+
+ if ( data == null && fn == null ) {
+
+ // ( types, fn )
+ fn = selector;
+ data = selector = undefined;
+ } else if ( fn == null ) {
+ if ( typeof selector === "string" ) {
+
+ // ( types, selector, fn )
+ fn = data;
+ data = undefined;
+ } else {
+
+ // ( types, data, fn )
+ fn = data;
+ data = selector;
+ selector = undefined;
+ }
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ } else if ( !fn ) {
+ return elem;
+ }
+
+ if ( one === 1 ) {
+ origFn = fn;
+ fn = function( event ) {
+
+ // Can use an empty set, since event contains the info
+ jQuery().off( event );
+ return origFn.apply( this, arguments );
+ };
+
+ // Use same guid so caller can remove using origFn
+ fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+ }
+ return elem.each( function() {
+ jQuery.event.add( this, types, fn, data, selector );
+ } );
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+ global: {},
+
+ add: function( elem, types, handler, data, selector ) {
+
+ var handleObjIn, eventHandle, tmp,
+ events, t, handleObj,
+ special, handlers, type, namespaces, origType,
+ elemData = dataPriv.get( elem );
+
+ // Don't attach events to noData or text/comment nodes (but allow plain objects)
+ if ( !elemData ) {
+ return;
+ }
+
+ // Caller can pass in an object of custom data in lieu of the handler
+ if ( handler.handler ) {
+ handleObjIn = handler;
+ handler = handleObjIn.handler;
+ selector = handleObjIn.selector;
+ }
+
+ // Ensure that invalid selectors throw exceptions at attach time
+ // Evaluate against documentElement in case elem is a non-element node (e.g., document)
+ if ( selector ) {
+ jQuery.find.matchesSelector( documentElement, selector );
+ }
+
+ // Make sure that the handler has a unique ID, used to find/remove it later
+ if ( !handler.guid ) {
+ handler.guid = jQuery.guid++;
+ }
+
+ // Init the element's event structure and main handler, if this is the first
+ if ( !( events = elemData.events ) ) {
+ events = elemData.events = {};
+ }
+ if ( !( eventHandle = elemData.handle ) ) {
+ eventHandle = elemData.handle = function( e ) {
+
+ // Discard the second event of a jQuery.event.trigger() and
+ // when an event is called after a page has unloaded
+ return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
+ jQuery.event.dispatch.apply( elem, arguments ) : undefined;
+ };
+ }
+
+ // Handle multiple events separated by a space
+ types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[ t ] ) || [];
+ type = origType = tmp[ 1 ];
+ namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+ // There *must* be a type, no attaching namespace-only handlers
+ if ( !type ) {
+ continue;
+ }
+
+ // If event changes its type, use the special event handlers for the changed type
+ special = jQuery.event.special[ type ] || {};
+
+ // If selector defined, determine special event api type, otherwise given type
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+
+ // Update special based on newly reset type
+ special = jQuery.event.special[ type ] || {};
+
+ // handleObj is passed to all event handlers
+ handleObj = jQuery.extend( {
+ type: type,
+ origType: origType,
+ data: data,
+ handler: handler,
+ guid: handler.guid,
+ selector: selector,
+ needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+ namespace: namespaces.join( "." )
+ }, handleObjIn );
+
+ // Init the event handler queue if we're the first
+ if ( !( handlers = events[ type ] ) ) {
+ handlers = events[ type ] = [];
+ handlers.delegateCount = 0;
+
+ // Only use addEventListener if the special events handler returns false
+ if ( !special.setup ||
+ special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+
+ if ( elem.addEventListener ) {
+ elem.addEventListener( type, eventHandle );
+ }
+ }
+ }
+
+ if ( special.add ) {
+ special.add.call( elem, handleObj );
+
+ if ( !handleObj.handler.guid ) {
+ handleObj.handler.guid = handler.guid;
+ }
+ }
+
+ // Add to the element's handler list, delegates in front
+ if ( selector ) {
+ handlers.splice( handlers.delegateCount++, 0, handleObj );
+ } else {
+ handlers.push( handleObj );
+ }
+
+ // Keep track of which events have ever been used, for event optimization
+ jQuery.event.global[ type ] = true;
+ }
+
+ },
+
+ // Detach an event or set of events from an element
+ remove: function( elem, types, handler, selector, mappedTypes ) {
+
+ var j, origCount, tmp,
+ events, t, handleObj,
+ special, handlers, type, namespaces, origType,
+ elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
+
+ if ( !elemData || !( events = elemData.events ) ) {
+ return;
+ }
+
+ // Once for each type.namespace in types; type may be omitted
+ types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[ t ] ) || [];
+ type = origType = tmp[ 1 ];
+ namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+ // Unbind all events (on this namespace, if provided) for the element
+ if ( !type ) {
+ for ( type in events ) {
+ jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+ }
+ continue;
+ }
+
+ special = jQuery.event.special[ type ] || {};
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+ handlers = events[ type ] || [];
+ tmp = tmp[ 2 ] &&
+ new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
+
+ // Remove matching events
+ origCount = j = handlers.length;
+ while ( j-- ) {
+ handleObj = handlers[ j ];
+
+ if ( ( mappedTypes || origType === handleObj.origType ) &&
+ ( !handler || handler.guid === handleObj.guid ) &&
+ ( !tmp || tmp.test( handleObj.namespace ) ) &&
+ ( !selector || selector === handleObj.selector ||
+ selector === "**" && handleObj.selector ) ) {
+ handlers.splice( j, 1 );
+
+ if ( handleObj.selector ) {
+ handlers.delegateCount--;
+ }
+ if ( special.remove ) {
+ special.remove.call( elem, handleObj );
+ }
+ }
+ }
+
+ // Remove generic event handler if we removed something and no more handlers exist
+ // (avoids potential for endless recursion during removal of special event handlers)
+ if ( origCount && !handlers.length ) {
+ if ( !special.teardown ||
+ special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+
+ jQuery.removeEvent( elem, type, elemData.handle );
+ }
+
+ delete events[ type ];
+ }
+ }
+
+ // Remove data and the expando if it's no longer used
+ if ( jQuery.isEmptyObject( events ) ) {
+ dataPriv.remove( elem, "handle events" );
+ }
+ },
+
+ dispatch: function( nativeEvent ) {
+
+ // Make a writable jQuery.Event from the native event object
+ var event = jQuery.event.fix( nativeEvent );
+
+ var i, j, ret, matched, handleObj, handlerQueue,
+ args = new Array( arguments.length ),
+ handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
+ special = jQuery.event.special[ event.type ] || {};
+
+ // Use the fix-ed jQuery.Event rather than the (read-only) native event
+ args[ 0 ] = event;
+
+ for ( i = 1; i < arguments.length; i++ ) {
+ args[ i ] = arguments[ i ];
+ }
+
+ event.delegateTarget = this;
+
+ // Call the preDispatch hook for the mapped type, and let it bail if desired
+ if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+ return;
+ }
+
+ // Determine handlers
+ handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+ // Run delegates first; they may want to stop propagation beneath us
+ i = 0;
+ while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
+ event.currentTarget = matched.elem;
+
+ j = 0;
+ while ( ( handleObj = matched.handlers[ j++ ] ) &&
+ !event.isImmediatePropagationStopped() ) {
+
+ // Triggered event must either 1) have no namespace, or 2) have namespace(s)
+ // a subset or equal to those in the bound event (both can have no namespace).
+ if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
+
+ event.handleObj = handleObj;
+ event.data = handleObj.data;
+
+ ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
+ handleObj.handler ).apply( matched.elem, args );
+
+ if ( ret !== undefined ) {
+ if ( ( event.result = ret ) === false ) {
+ event.preventDefault();
+ event.stopPropagation();
+ }
+ }
+ }
+ }
+ }
+
+ // Call the postDispatch hook for the mapped type
+ if ( special.postDispatch ) {
+ special.postDispatch.call( this, event );
+ }
+
+ return event.result;
+ },
+
+ handlers: function( event, handlers ) {
+ var i, handleObj, sel, matchedHandlers, matchedSelectors,
+ handlerQueue = [],
+ delegateCount = handlers.delegateCount,
+ cur = event.target;
+
+ // Find delegate handlers
+ if ( delegateCount &&
+
+ // Support: IE <=9
+ // Black-hole SVG <use> instance trees (trac-13180)
+ cur.nodeType &&
+
+ // Support: Firefox <=42
+ // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
+ // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
+ // Support: IE 11 only
+ // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
+ !( event.type === "click" && event.button >= 1 ) ) {
+
+ for ( ; cur !== this; cur = cur.parentNode || this ) {
+
+ // Don't check non-elements (#13208)
+ // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+ if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
+ matchedHandlers = [];
+ matchedSelectors = {};
+ for ( i = 0; i < delegateCount; i++ ) {
+ handleObj = handlers[ i ];
+
+ // Don't conflict with Object.prototype properties (#13203)
+ sel = handleObj.selector + " ";
+
+ if ( matchedSelectors[ sel ] === undefined ) {
+ matchedSelectors[ sel ] = handleObj.needsContext ?
+ jQuery( sel, this ).index( cur ) > -1 :
+ jQuery.find( sel, this, null, [ cur ] ).length;
+ }
+ if ( matchedSelectors[ sel ] ) {
+ matchedHandlers.push( handleObj );
+ }
+ }
+ if ( matchedHandlers.length ) {
+ handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
+ }
+ }
+ }
+ }
+
+ // Add the remaining (directly-bound) handlers
+ cur = this;
+ if ( delegateCount < handlers.length ) {
+ handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
+ }
+
+ return handlerQueue;
+ },
+
+ addProp: function( name, hook ) {
+ Object.defineProperty( jQuery.Event.prototype, name, {
+ enumerable: true,
+ configurable: true,
+
+ get: isFunction( hook ) ?
+ function() {
+ if ( this.originalEvent ) {
+ return hook( this.originalEvent );
+ }
+ } :
+ function() {
+ if ( this.originalEvent ) {
+ return this.originalEvent[ name ];
+ }
+ },
+
+ set: function( value ) {
+ Object.defineProperty( this, name, {
+ enumerable: true,
+ configurable: true,
+ writable: true,
+ value: value
+ } );
+ }
+ } );
+ },
+
+ fix: function( originalEvent ) {
+ return originalEvent[ jQuery.expando ] ?
+ originalEvent :
+ new jQuery.Event( originalEvent );
+ },
+
+ special: {
+ load: {
+
+ // Prevent triggered image.load events from bubbling to window.load
+ noBubble: true
+ },
+ focus: {
+
+ // Fire native event if possible so blur/focus sequence is correct
+ trigger: function() {
+ if ( this !== safeActiveElement() && this.focus ) {
+ this.focus();
+ return false;
+ }
+ },
+ delegateType: "focusin"
+ },
+ blur: {
+ trigger: function() {
+ if ( this === safeActiveElement() && this.blur ) {
+ this.blur();
+ return false;
+ }
+ },
+ delegateType: "focusout"
+ },
+ click: {
+
+ // For checkbox, fire native event so checked state will be right
+ trigger: function() {
+ if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) {
+ this.click();
+ return false;
+ }
+ },
+
+ // For cross-browser consistency, don't fire native .click() on links
+ _default: function( event ) {
+ return nodeName( event.target, "a" );
+ }
+ },
+
+ beforeunload: {
+ postDispatch: function( event ) {
+
+ // Support: Firefox 20+
+ // Firefox doesn't alert if the returnValue field is not set.
+ if ( event.result !== undefined && event.originalEvent ) {
+ event.originalEvent.returnValue = event.result;
+ }
+ }
+ }
+ }
+};
+
+jQuery.removeEvent = function( elem, type, handle ) {
+
+ // This "if" is needed for plain objects
+ if ( elem.removeEventListener ) {
+ elem.removeEventListener( type, handle );
+ }
+};
+
+jQuery.Event = function( src, props ) {
+
+ // Allow instantiation without the 'new' keyword
+ if ( !( this instanceof jQuery.Event ) ) {
+ return new jQuery.Event( src, props );
+ }
+
+ // Event object
+ if ( src && src.type ) {
+ this.originalEvent = src;
+ this.type = src.type;
+
+ // Events bubbling up the document may have been marked as prevented
+ // by a handler lower down the tree; reflect the correct value.
+ this.isDefaultPrevented = src.defaultPrevented ||
+ src.defaultPrevented === undefined &&
+
+ // Support: Android <=2.3 only
+ src.returnValue === false ?
+ returnTrue :
+ returnFalse;
+
+ // Create target properties
+ // Support: Safari <=6 - 7 only
+ // Target should not be a text node (#504, #13143)
+ this.target = ( src.target && src.target.nodeType === 3 ) ?
+ src.target.parentNode :
+ src.target;
+
+ this.currentTarget = src.currentTarget;
+ this.relatedTarget = src.relatedTarget;
+
+ // Event type
+ } else {
+ this.type = src;
+ }
+
+ // Put explicitly provided properties onto the event object
+ if ( props ) {
+ jQuery.extend( this, props );
+ }
+
+ // Create a timestamp if incoming event doesn't have one
+ this.timeStamp = src && src.timeStamp || Date.now();
+
+ // Mark it as fixed
+ this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+ constructor: jQuery.Event,
+ isDefaultPrevented: returnFalse,
+ isPropagationStopped: returnFalse,
+ isImmediatePropagationStopped: returnFalse,
+ isSimulated: false,
+
+ preventDefault: function() {
+ var e = this.originalEvent;
+
+ this.isDefaultPrevented = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.preventDefault();
+ }
+ },
+ stopPropagation: function() {
+ var e = this.originalEvent;
+
+ this.isPropagationStopped = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.stopPropagation();
+ }
+ },
+ stopImmediatePropagation: function() {
+ var e = this.originalEvent;
+
+ this.isImmediatePropagationStopped = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.stopImmediatePropagation();
+ }
+
+ this.stopPropagation();
+ }
+};
+
+// Includes all common event props including KeyEvent and MouseEvent specific props
+jQuery.each( {
+ altKey: true,
+ bubbles: true,
+ cancelable: true,
+ changedTouches: true,
+ ctrlKey: true,
+ detail: true,
+ eventPhase: true,
+ metaKey: true,
+ pageX: true,
+ pageY: true,
+ shiftKey: true,
+ view: true,
+ "char": true,
+ charCode: true,
+ key: true,
+ keyCode: true,
+ button: true,
+ buttons: true,
+ clientX: true,
+ clientY: true,
+ offsetX: true,
+ offsetY: true,
+ pointerId: true,
+ pointerType: true,
+ screenX: true,
+ screenY: true,
+ targetTouches: true,
+ toElement: true,
+ touches: true,
+
+ which: function( event ) {
+ var button = event.button;
+
+ // Add which for key events
+ if ( event.which == null && rkeyEvent.test( event.type ) ) {
+ return event.charCode != null ? event.charCode : event.keyCode;
+ }
+
+ // Add which for click: 1 === left; 2 === middle; 3 === right
+ if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
+ if ( button & 1 ) {
+ return 1;
+ }
+
+ if ( button & 2 ) {
+ return 3;
+ }
+
+ if ( button & 4 ) {
+ return 2;
+ }
+
+ return 0;
+ }
+
+ return event.which;
+ }
+}, jQuery.event.addProp );
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+// so that event delegation works in jQuery.
+// Do the same for pointerenter/pointerleave and pointerover/pointerout
+//
+// Support: Safari 7 only
+// Safari sends mouseenter too often; see:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
+// for the description of the bug (it existed in older Chrome versions as well).
+jQuery.each( {
+ mouseenter: "mouseover",
+ mouseleave: "mouseout",
+ pointerenter: "pointerover",
+ pointerleave: "pointerout"
+}, function( orig, fix ) {
+ jQuery.event.special[ orig ] = {
+ delegateType: fix,
+ bindType: fix,
+
+ handle: function( event ) {
+ var ret,
+ target = this,
+ related = event.relatedTarget,
+ handleObj = event.handleObj;
+
+ // For mouseenter/leave call the handler if related is outside the target.
+ // NB: No relatedTarget if the mouse left/entered the browser window
+ if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
+ event.type = handleObj.origType;
+ ret = handleObj.handler.apply( this, arguments );
+ event.type = fix;
+ }
+ return ret;
+ }
+ };
+} );
+
+jQuery.fn.extend( {
+
+ on: function( types, selector, data, fn ) {
+ return on( this, types, selector, data, fn );
+ },
+ one: function( types, selector, data, fn ) {
+ return on( this, types, selector, data, fn, 1 );
+ },
+ off: function( types, selector, fn ) {
+ var handleObj, type;
+ if ( types && types.preventDefault && types.handleObj ) {
+
+ // ( event ) dispatched jQuery.Event
+ handleObj = types.handleObj;
+ jQuery( types.delegateTarget ).off(
+ handleObj.namespace ?
+ handleObj.origType + "." + handleObj.namespace :
+ handleObj.origType,
+ handleObj.selector,
+ handleObj.handler
+ );
+ return this;
+ }
+ if ( typeof types === "object" ) {
+
+ // ( types-object [, selector] )
+ for ( type in types ) {
+ this.off( type, selector, types[ type ] );
+ }
+ return this;
+ }
+ if ( selector === false || typeof selector === "function" ) {
+
+ // ( types [, fn] )
+ fn = selector;
+ selector = undefined;
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ }
+ return this.each( function() {
+ jQuery.event.remove( this, types, fn, selector );
+ } );
+ }
+} );
+
+
+var
+
+ /* eslint-disable max-len */
+
+ // See https://github.com/eslint/eslint/issues/3229
+ rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
+
+ /* eslint-enable */
+
+ // Support: IE <=10 - 11, Edge 12 - 13 only
+ // In IE/Edge using regex groups here causes severe slowdowns.
+ // See https://connect.microsoft.com/IE/feedback/details/1736512/
+ rnoInnerhtml = /<script|<style|<link/i,
+
+ // checked="checked" or checked
+ rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+ rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
+
+// Prefer a tbody over its parent table for containing new rows
+function manipulationTarget( elem, content ) {
+ if ( nodeName( elem, "table" ) &&
+ nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
+
+ return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
+ }
+
+ return elem;
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+ elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
+ return elem;
+}
+function restoreScript( elem ) {
+ if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
+ elem.type = elem.type.slice( 5 );
+ } else {
+ elem.removeAttribute( "type" );
+ }
+
+ return elem;
+}
+
+function cloneCopyEvent( src, dest ) {
+ var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
+
+ if ( dest.nodeType !== 1 ) {
+ return;
+ }
+
+ // 1. Copy private data: events, handlers, etc.
+ if ( dataPriv.hasData( src ) ) {
+ pdataOld = dataPriv.access( src );
+ pdataCur = dataPriv.set( dest, pdataOld );
+ events = pdataOld.events;
+
+ if ( events ) {
+ delete pdataCur.handle;
+ pdataCur.events = {};
+
+ for ( type in events ) {
+ for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+ jQuery.event.add( dest, type, events[ type ][ i ] );
+ }
+ }
+ }
+ }
+
+ // 2. Copy user data
+ if ( dataUser.hasData( src ) ) {
+ udataOld = dataUser.access( src );
+ udataCur = jQuery.extend( {}, udataOld );
+
+ dataUser.set( dest, udataCur );
+ }
+}
+
+// Fix IE bugs, see support tests
+function fixInput( src, dest ) {
+ var nodeName = dest.nodeName.toLowerCase();
+
+ // Fails to persist the checked state of a cloned checkbox or radio button.
+ if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
+ dest.checked = src.checked;
+
+ // Fails to return the selected option to the default selected state when cloning options
+ } else if ( nodeName === "input" || nodeName === "textarea" ) {
+ dest.defaultValue = src.defaultValue;
+ }
+}
+
+function domManip( collection, args, callback, ignored ) {
+
+ // Flatten any nested arrays
+ args = concat.apply( [], args );
+
+ var fragment, first, scripts, hasScripts, node, doc,
+ i = 0,
+ l = collection.length,
+ iNoClone = l - 1,
+ value = args[ 0 ],
+ valueIsFunction = isFunction( value );
+
+ // We can't cloneNode fragments that contain checked, in WebKit
+ if ( valueIsFunction ||
+ ( l > 1 && typeof value === "string" &&
+ !support.checkClone && rchecked.test( value ) ) ) {
+ return collection.each( function( index ) {
+ var self = collection.eq( index );
+ if ( valueIsFunction ) {
+ args[ 0 ] = value.call( this, index, self.html() );
+ }
+ domManip( self, args, callback, ignored );
+ } );
+ }
+
+ if ( l ) {
+ fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
+ first = fragment.firstChild;
+
+ if ( fragment.childNodes.length === 1 ) {
+ fragment = first;
+ }
+
+ // Require either new content or an interest in ignored elements to invoke the callback
+ if ( first || ignored ) {
+ scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+ hasScripts = scripts.length;
+
+ // Use the original fragment for the last item
+ // instead of the first because it can end up
+ // being emptied incorrectly in certain situations (#8070).
+ for ( ; i < l; i++ ) {
+ node = fragment;
+
+ if ( i !== iNoClone ) {
+ node = jQuery.clone( node, true, true );
+
+ // Keep references to cloned scripts for later restoration
+ if ( hasScripts ) {
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( scripts, getAll( node, "script" ) );
+ }
+ }
+
+ callback.call( collection[ i ], node, i );
+ }
+
+ if ( hasScripts ) {
+ doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+ // Reenable scripts
+ jQuery.map( scripts, restoreScript );
+
+ // Evaluate executable scripts on first document insertion
+ for ( i = 0; i < hasScripts; i++ ) {
+ node = scripts[ i ];
+ if ( rscriptType.test( node.type || "" ) &&
+ !dataPriv.access( node, "globalEval" ) &&
+ jQuery.contains( doc, node ) ) {
+
+ if ( node.src && ( node.type || "" ).toLowerCase() !== "module" ) {
+
+ // Optional AJAX dependency, but won't run scripts if not present
+ if ( jQuery._evalUrl ) {
+ jQuery._evalUrl( node.src );
+ }
+ } else {
+ DOMEval( node.textContent.replace( rcleanScript, "" ), doc, node );
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return collection;
+}
+
+function remove( elem, selector, keepData ) {
+ var node,
+ nodes = selector ? jQuery.filter( selector, elem ) : elem,
+ i = 0;
+
+ for ( ; ( node = nodes[ i ] ) != null; i++ ) {
+ if ( !keepData && node.nodeType === 1 ) {
+ jQuery.cleanData( getAll( node ) );
+ }
+
+ if ( node.parentNode ) {
+ if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
+ setGlobalEval( getAll( node, "script" ) );
+ }
+ node.parentNode.removeChild( node );
+ }
+ }
+
+ return elem;
+}
+
+jQuery.extend( {
+ htmlPrefilter: function( html ) {
+ return html.replace( rxhtmlTag, "<$1></$2>" );
+ },
+
+ clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+ var i, l, srcElements, destElements,
+ clone = elem.cloneNode( true ),
+ inPage = jQuery.contains( elem.ownerDocument, elem );
+
+ // Fix IE cloning issues
+ if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
+ !jQuery.isXMLDoc( elem ) ) {
+
+ // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
+ destElements = getAll( clone );
+ srcElements = getAll( elem );
+
+ for ( i = 0, l = srcElements.length; i < l; i++ ) {
+ fixInput( srcElements[ i ], destElements[ i ] );
+ }
+ }
+
+ // Copy the events from the original to the clone
+ if ( dataAndEvents ) {
+ if ( deepDataAndEvents ) {
+ srcElements = srcElements || getAll( elem );
+ destElements = destElements || getAll( clone );
+
+ for ( i = 0, l = srcElements.length; i < l; i++ ) {
+ cloneCopyEvent( srcElements[ i ], destElements[ i ] );
+ }
+ } else {
+ cloneCopyEvent( elem, clone );
+ }
+ }
+
+ // Preserve script evaluation history
+ destElements = getAll( clone, "script" );
+ if ( destElements.length > 0 ) {
+ setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+ }
+
+ // Return the cloned set
+ return clone;
+ },
+
+ cleanData: function( elems ) {
+ var data, elem, type,
+ special = jQuery.event.special,
+ i = 0;
+
+ for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
+ if ( acceptData( elem ) ) {
+ if ( ( data = elem[ dataPriv.expando ] ) ) {
+ if ( data.events ) {
+ for ( type in data.events ) {
+ if ( special[ type ] ) {
+ jQuery.event.remove( elem, type );
+
+ // This is a shortcut to avoid jQuery.event.remove's overhead
+ } else {
+ jQuery.removeEvent( elem, type, data.handle );
+ }
+ }
+ }
+
+ // Support: Chrome <=35 - 45+
+ // Assign undefined instead of using delete, see Data#remove
+ elem[ dataPriv.expando ] = undefined;
+ }
+ if ( elem[ dataUser.expando ] ) {
+
+ // Support: Chrome <=35 - 45+
+ // Assign undefined instead of using delete, see Data#remove
+ elem[ dataUser.expando ] = undefined;
+ }
+ }
+ }
+ }
+} );
+
+jQuery.fn.extend( {
+ detach: function( selector ) {
+ return remove( this, selector, true );
+ },
+
+ remove: function( selector ) {
+ return remove( this, selector );
+ },
+
+ text: function( value ) {
+ return access( this, function( value ) {
+ return value === undefined ?
+ jQuery.text( this ) :
+ this.empty().each( function() {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ this.textContent = value;
+ }
+ } );
+ }, null, value, arguments.length );
+ },
+
+ append: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.appendChild( elem );
+ }
+ } );
+ },
+
+ prepend: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.insertBefore( elem, target.firstChild );
+ }
+ } );
+ },
+
+ before: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this );
+ }
+ } );
+ },
+
+ after: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this.nextSibling );
+ }
+ } );
+ },
+
+ empty: function() {
+ var elem,
+ i = 0;
+
+ for ( ; ( elem = this[ i ] ) != null; i++ ) {
+ if ( elem.nodeType === 1 ) {
+
+ // Prevent memory leaks
+ jQuery.cleanData( getAll( elem, false ) );
+
+ // Remove any remaining nodes
+ elem.textContent = "";
+ }
+ }
+
+ return this;
+ },
+
+ clone: function( dataAndEvents, deepDataAndEvents ) {
+ dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+ deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+ return this.map( function() {
+ return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+ } );
+ },
+
+ html: function( value ) {
+ return access( this, function( value ) {
+ var elem = this[ 0 ] || {},
+ i = 0,
+ l = this.length;
+
+ if ( value === undefined && elem.nodeType === 1 ) {
+ return elem.innerHTML;
+ }
+
+ // See if we can take a shortcut and just use innerHTML
+ if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+ !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
+
+ value = jQuery.htmlPrefilter( value );
+
+ try {
+ for ( ; i < l; i++ ) {
+ elem = this[ i ] || {};
+
+ // Remove element nodes and prevent memory leaks
+ if ( elem.nodeType === 1 ) {
+ jQuery.cleanData( getAll( elem, false ) );
+ elem.innerHTML = value;
+ }
+ }
+
+ elem = 0;
+
+ // If using innerHTML throws an exception, use the fallback method
+ } catch ( e ) {}
+ }
+
+ if ( elem ) {
+ this.empty().append( value );
+ }
+ }, null, value, arguments.length );
+ },
+
+ replaceWith: function() {
+ var ignored = [];
+
+ // Make the changes, replacing each non-ignored context element with the new content
+ return domManip( this, arguments, function( elem ) {
+ var parent = this.parentNode;
+
+ if ( jQuery.inArray( this, ignored ) < 0 ) {
+ jQuery.cleanData( getAll( this ) );
+ if ( parent ) {
+ parent.replaceChild( elem, this );
+ }
+ }
+
+ // Force callback invocation
+ }, ignored );
+ }
+} );
+
+jQuery.each( {
+ appendTo: "append",
+ prependTo: "prepend",
+ insertBefore: "before",
+ insertAfter: "after",
+ replaceAll: "replaceWith"
+}, function( name, original ) {
+ jQuery.fn[ name ] = function( selector ) {
+ var elems,
+ ret = [],
+ insert = jQuery( selector ),
+ last = insert.length - 1,
+ i = 0;
+
+ for ( ; i <= last; i++ ) {
+ elems = i === last ? this : this.clone( true );
+ jQuery( insert[ i ] )[ original ]( elems );
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // .get() because push.apply(_, arraylike) throws on ancient WebKit
+ push.apply( ret, elems.get() );
+ }
+
+ return this.pushStack( ret );
+ };
+} );
+var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
+
+var getStyles = function( elem ) {
+
+ // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
+ // IE throws on elements created in popups
+ // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
+ var view = elem.ownerDocument.defaultView;
+
+ if ( !view || !view.opener ) {
+ view = window;
+ }
+
+ return view.getComputedStyle( elem );
+ };
+
+var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );
+
+
+
+( function() {
+
+ // Executing both pixelPosition & boxSizingReliable tests require only one layout
+ // so they're executed at the same time to save the second computation.
+ function computeStyleTests() {
+
+ // This is a singleton, we need to execute it only once
+ if ( !div ) {
+ return;
+ }
+
+ container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
+ "margin-top:1px;padding:0;border:0";
+ div.style.cssText =
+ "position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
+ "margin:auto;border:1px;padding:1px;" +
+ "width:60%;top:1%";
+ documentElement.appendChild( container ).appendChild( div );
+
+ var divStyle = window.getComputedStyle( div );
+ pixelPositionVal = divStyle.top !== "1%";
+
+ // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
+ reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;
+
+ // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
+ // Some styles come back with percentage values, even though they shouldn't
+ div.style.right = "60%";
+ pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;
+
+ // Support: IE 9 - 11 only
+ // Detect misreporting of content dimensions for box-sizing:border-box elements
+ boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;
+
+ // Support: IE 9 only
+ // Detect overflow:scroll screwiness (gh-3699)
+ div.style.position = "absolute";
+ scrollboxSizeVal = div.offsetWidth === 36 || "absolute";
+
+ documentElement.removeChild( container );
+
+ // Nullify the div so it wouldn't be stored in the memory and
+ // it will also be a sign that checks already performed
+ div = null;
+ }
+
+ function roundPixelMeasures( measure ) {
+ return Math.round( parseFloat( measure ) );
+ }
+
+ var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
+ reliableMarginLeftVal,
+ container = document.createElement( "div" ),
+ div = document.createElement( "div" );
+
+ // Finish early in limited (non-browser) environments
+ if ( !div.style ) {
+ return;
+ }
+
+ // Support: IE <=9 - 11 only
+ // Style of cloned element affects source element cloned (#8908)
+ div.style.backgroundClip = "content-box";
+ div.cloneNode( true ).style.backgroundClip = "";
+ support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+ jQuery.extend( support, {
+ boxSizingReliable: function() {
+ computeStyleTests();
+ return boxSizingReliableVal;
+ },
+ pixelBoxStyles: function() {
+ computeStyleTests();
+ return pixelBoxStylesVal;
+ },
+ pixelPosition: function() {
+ computeStyleTests();
+ return pixelPositionVal;
+ },
+ reliableMarginLeft: function() {
+ computeStyleTests();
+ return reliableMarginLeftVal;
+ },
+ scrollboxSize: function() {
+ computeStyleTests();
+ return scrollboxSizeVal;
+ }
+ } );
+} )();
+
+
+function curCSS( elem, name, computed ) {
+ var width, minWidth, maxWidth, ret,
+
+ // Support: Firefox 51+
+ // Retrieving style before computed somehow
+ // fixes an issue with getting wrong values
+ // on detached elements
+ style = elem.style;
+
+ computed = computed || getStyles( elem );
+
+ // getPropertyValue is needed for:
+ // .css('filter') (IE 9 only, #12537)
+ // .css('--customProperty) (#3144)
+ if ( computed ) {
+ ret = computed.getPropertyValue( name ) || computed[ name ];
+
+ if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
+ ret = jQuery.style( elem, name );
+ }
+
+ // A tribute to the "awesome hack by Dean Edwards"
+ // Android Browser returns percentage for some values,
+ // but width seems to be reliably pixels.
+ // This is against the CSSOM draft spec:
+ // https://drafts.csswg.org/cssom/#resolved-values
+ if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {
+
+ // Remember the original values
+ width = style.width;
+ minWidth = style.minWidth;
+ maxWidth = style.maxWidth;
+
+ // Put in the new values to get a computed value out
+ style.minWidth = style.maxWidth = style.width = ret;
+ ret = computed.width;
+
+ // Revert the changed values
+ style.width = width;
+ style.minWidth = minWidth;
+ style.maxWidth = maxWidth;
+ }
+ }
+
+ return ret !== undefined ?
+
+ // Support: IE <=9 - 11 only
+ // IE returns zIndex value as an integer.
+ ret + "" :
+ ret;
+}
+
+
+function addGetHookIf( conditionFn, hookFn ) {
+
+ // Define the hook, we'll check on the first run if it's really needed.
+ return {
+ get: function() {
+ if ( conditionFn() ) {
+
+ // Hook not needed (or it's not possible to use it due
+ // to missing dependency), remove it.
+ delete this.get;
+ return;
+ }
+
+ // Hook needed; redefine it so that the support test is not executed again.
+ return ( this.get = hookFn ).apply( this, arguments );
+ }
+ };
+}
+
+
+var
+
+ // Swappable if display is none or starts with table
+ // except "table", "table-cell", or "table-caption"
+ // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+ rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+ rcustomProp = /^--/,
+ cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+ cssNormalTransform = {
+ letterSpacing: "0",
+ fontWeight: "400"
+ },
+
+ cssPrefixes = [ "Webkit", "Moz", "ms" ],
+ emptyStyle = document.createElement( "div" ).style;
+
+// Return a css property mapped to a potentially vendor prefixed property
+function vendorPropName( name ) {
+
+ // Shortcut for names that are not vendor prefixed
+ if ( name in emptyStyle ) {
+ return name;
+ }
+
+ // Check for vendor prefixed names
+ var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
+ i = cssPrefixes.length;
+
+ while ( i-- ) {
+ name = cssPrefixes[ i ] + capName;
+ if ( name in emptyStyle ) {
+ return name;
+ }
+ }
+}
+
+// Return a property mapped along what jQuery.cssProps suggests or to
+// a vendor prefixed property.
+function finalPropName( name ) {
+ var ret = jQuery.cssProps[ name ];
+ if ( !ret ) {
+ ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
+ }
+ return ret;
+}
+
+function setPositiveNumber( elem, value, subtract ) {
+
+ // Any relative (+/-) values have already been
+ // normalized at this point
+ var matches = rcssNum.exec( value );
+ return matches ?
+
+ // Guard against undefined "subtract", e.g., when used as in cssHooks
+ Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
+ value;
+}
+
+function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
+ var i = dimension === "width" ? 1 : 0,
+ extra = 0,
+ delta = 0;
+
+ // Adjustment may not be necessary
+ if ( box === ( isBorderBox ? "border" : "content" ) ) {
+ return 0;
+ }
+
+ for ( ; i < 4; i += 2 ) {
+
+ // Both box models exclude margin
+ if ( box === "margin" ) {
+ delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
+ }
+
+ // If we get here with a content-box, we're seeking "padding" or "border" or "margin"
+ if ( !isBorderBox ) {
+
+ // Add padding
+ delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+ // For "border" or "margin", add border
+ if ( box !== "padding" ) {
+ delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+
+ // But still keep track of it otherwise
+ } else {
+ extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+
+ // If we get here with a border-box (content + padding + border), we're seeking "content" or
+ // "padding" or "margin"
+ } else {
+
+ // For "content", subtract padding
+ if ( box === "content" ) {
+ delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+ }
+
+ // For "content" or "padding", subtract border
+ if ( box !== "margin" ) {
+ delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+ }
+ }
+
+ // Account for positive content-box scroll gutter when requested by providing computedVal
+ if ( !isBorderBox && computedVal >= 0 ) {
+
+ // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
+ // Assuming integer scroll gutter, subtract the rest and round down
+ delta += Math.max( 0, Math.ceil(
+ elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
+ computedVal -
+ delta -
+ extra -
+ 0.5
+ ) );
+ }
+
+ return delta;
+}
+
+function getWidthOrHeight( elem, dimension, extra ) {
+
+ // Start with computed style
+ var styles = getStyles( elem ),
+ val = curCSS( elem, dimension, styles ),
+ isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+ valueIsBorderBox = isBorderBox;
+
+ // Support: Firefox <=54
+ // Return a confounding non-pixel value or feign ignorance, as appropriate.
+ if ( rnumnonpx.test( val ) ) {
+ if ( !extra ) {
+ return val;
+ }
+ val = "auto";
+ }
+
+ // Check for style in case a browser which returns unreliable values
+ // for getComputedStyle silently falls back to the reliable elem.style
+ valueIsBorderBox = valueIsBorderBox &&
+ ( support.boxSizingReliable() || val === elem.style[ dimension ] );
+
+ // Fall back to offsetWidth/offsetHeight when value is "auto"
+ // This happens for inline elements with no explicit setting (gh-3571)
+ // Support: Android <=4.1 - 4.3 only
+ // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
+ if ( val === "auto" ||
+ !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) {
+
+ val = elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ];
+
+ // offsetWidth/offsetHeight provide border-box values
+ valueIsBorderBox = true;
+ }
+
+ // Normalize "" and auto
+ val = parseFloat( val ) || 0;
+
+ // Adjust for the element's box model
+ return ( val +
+ boxModelAdjustment(
+ elem,
+ dimension,
+ extra || ( isBorderBox ? "border" : "content" ),
+ valueIsBorderBox,
+ styles,
+
+ // Provide the current computed size to request scroll gutter calculation (gh-3589)
+ val
+ )
+ ) + "px";
+}
+
+jQuery.extend( {
+
+ // Add in style property hooks for overriding the default
+ // behavior of getting and setting a style property
+ cssHooks: {
+ opacity: {
+ get: function( elem, computed ) {
+ if ( computed ) {
+
+ // We should always get a number back from opacity
+ var ret = curCSS( elem, "opacity" );
+ return ret === "" ? "1" : ret;
+ }
+ }
+ }
+ },
+
+ // Don't automatically add "px" to these possibly-unitless properties
+ cssNumber: {
+ "animationIterationCount": true,
+ "columnCount": true,
+ "fillOpacity": true,
+ "flexGrow": true,
+ "flexShrink": true,
+ "fontWeight": true,
+ "lineHeight": true,
+ "opacity": true,
+ "order": true,
+ "orphans": true,
+ "widows": true,
+ "zIndex": true,
+ "zoom": true
+ },
+
+ // Add in properties whose names you wish to fix before
+ // setting or getting the value
+ cssProps: {},
+
+ // Get and set the style property on a DOM Node
+ style: function( elem, name, value, extra ) {
+
+ // Don't set styles on text and comment nodes
+ if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+ return;
+ }
+
+ // Make sure that we're working with the right name
+ var ret, type, hooks,
+ origName = camelCase( name ),
+ isCustomProp = rcustomProp.test( name ),
+ style = elem.style;
+
+ // Make sure that we're working with the right name. We don't
+ // want to query the value if it is a CSS custom property
+ // since they are user-defined.
+ if ( !isCustomProp ) {
+ name = finalPropName( origName );
+ }
+
+ // Gets hook for the prefixed version, then unprefixed version
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // Check if we're setting a value
+ if ( value !== undefined ) {
+ type = typeof value;
+
+ // Convert "+=" or "-=" to relative numbers (#7345)
+ if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
+ value = adjustCSS( elem, name, ret );
+
+ // Fixes bug #9237
+ type = "number";
+ }
+
+ // Make sure that null and NaN values aren't set (#7116)
+ if ( value == null || value !== value ) {
+ return;
+ }
+
+ // If a number was passed in, add the unit (except for certain CSS properties)
+ if ( type === "number" ) {
+ value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
+ }
+
+ // background-* props affect original clone's values
+ if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
+ style[ name ] = "inherit";
+ }
+
+ // If a hook was provided, use that value, otherwise just set the specified value
+ if ( !hooks || !( "set" in hooks ) ||
+ ( value = hooks.set( elem, value, extra ) ) !== undefined ) {
+
+ if ( isCustomProp ) {
+ style.setProperty( name, value );
+ } else {
+ style[ name ] = value;
+ }
+ }
+
+ } else {
+
+ // If a hook was provided get the non-computed value from there
+ if ( hooks && "get" in hooks &&
+ ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
+
+ return ret;
+ }
+
+ // Otherwise just get the value from the style object
+ return style[ name ];
+ }
+ },
+
+ css: function( elem, name, extra, styles ) {
+ var val, num, hooks,
+ origName = camelCase( name ),
+ isCustomProp = rcustomProp.test( name );
+
+ // Make sure that we're working with the right name. We don't
+ // want to modify the value if it is a CSS custom property
+ // since they are user-defined.
+ if ( !isCustomProp ) {
+ name = finalPropName( origName );
+ }
+
+ // Try prefixed name followed by the unprefixed name
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // If a hook was provided get the computed value from there
+ if ( hooks && "get" in hooks ) {
+ val = hooks.get( elem, true, extra );
+ }
+
+ // Otherwise, if a way to get the computed value exists, use that
+ if ( val === undefined ) {
+ val = curCSS( elem, name, styles );
+ }
+
+ // Convert "normal" to computed value
+ if ( val === "normal" && name in cssNormalTransform ) {
+ val = cssNormalTransform[ name ];
+ }
+
+ // Make numeric if forced or a qualifier was provided and val looks numeric
+ if ( extra === "" || extra ) {
+ num = parseFloat( val );
+ return extra === true || isFinite( num ) ? num || 0 : val;
+ }
+
+ return val;
+ }
+} );
+
+jQuery.each( [ "height", "width" ], function( i, dimension ) {
+ jQuery.cssHooks[ dimension ] = {
+ get: function( elem, computed, extra ) {
+ if ( computed ) {
+
+ // Certain elements can have dimension info if we invisibly show them
+ // but it must have a current display style that would benefit
+ return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
+
+ // Support: Safari 8+
+ // Table columns in Safari have non-zero offsetWidth & zero
+ // getBoundingClientRect().width unless display is changed.
+ // Support: IE <=11 only
+ // Running getBoundingClientRect on a disconnected node
+ // in IE throws an error.
+ ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
+ swap( elem, cssShow, function() {
+ return getWidthOrHeight( elem, dimension, extra );
+ } ) :
+ getWidthOrHeight( elem, dimension, extra );
+ }
+ },
+
+ set: function( elem, value, extra ) {
+ var matches,
+ styles = getStyles( elem ),
+ isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+ subtract = extra && boxModelAdjustment(
+ elem,
+ dimension,
+ extra,
+ isBorderBox,
+ styles
+ );
+
+ // Account for unreliable border-box dimensions by comparing offset* to computed and
+ // faking a content-box to get border and padding (gh-3699)
+ if ( isBorderBox && support.scrollboxSize() === styles.position ) {
+ subtract -= Math.ceil(
+ elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
+ parseFloat( styles[ dimension ] ) -
+ boxModelAdjustment( elem, dimension, "border", false, styles ) -
+ 0.5
+ );
+ }
+
+ // Convert to pixels if value adjustment is needed
+ if ( subtract && ( matches = rcssNum.exec( value ) ) &&
+ ( matches[ 3 ] || "px" ) !== "px" ) {
+
+ elem.style[ dimension ] = value;
+ value = jQuery.css( elem, dimension );
+ }
+
+ return setPositiveNumber( elem, value, subtract );
+ }
+ };
+} );
+
+jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
+ function( elem, computed ) {
+ if ( computed ) {
+ return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
+ elem.getBoundingClientRect().left -
+ swap( elem, { marginLeft: 0 }, function() {
+ return elem.getBoundingClientRect().left;
+ } )
+ ) + "px";
+ }
+ }
+);
+
+// These hooks are used by animate to expand properties
+jQuery.each( {
+ margin: "",
+ padding: "",
+ border: "Width"
+}, function( prefix, suffix ) {
+ jQuery.cssHooks[ prefix + suffix ] = {
+ expand: function( value ) {
+ var i = 0,
+ expanded = {},
+
+ // Assumes a single number if not a string
+ parts = typeof value === "string" ? value.split( " " ) : [ value ];
+
+ for ( ; i < 4; i++ ) {
+ expanded[ prefix + cssExpand[ i ] + suffix ] =
+ parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+ }
+
+ return expanded;
+ }
+ };
+
+ if ( prefix !== "margin" ) {
+ jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+ }
+} );
+
+jQuery.fn.extend( {
+ css: function( name, value ) {
+ return access( this, function( elem, name, value ) {
+ var styles, len,
+ map = {},
+ i = 0;
+
+ if ( Array.isArray( name ) ) {
+ styles = getStyles( elem );
+ len = name.length;
+
+ for ( ; i < len; i++ ) {
+ map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+ }
+
+ return map;
+ }
+
+ return value !== undefined ?
+ jQuery.style( elem, name, value ) :
+ jQuery.css( elem, name );
+ }, name, value, arguments.length > 1 );
+ }
+} );
+
+
+function Tween( elem, options, prop, end, easing ) {
+ return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+ constructor: Tween,
+ init: function( elem, options, prop, end, easing, unit ) {
+ this.elem = elem;
+ this.prop = prop;
+ this.easing = easing || jQuery.easing._default;
+ this.options = options;
+ this.start = this.now = this.cur();
+ this.end = end;
+ this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+ },
+ cur: function() {
+ var hooks = Tween.propHooks[ this.prop ];
+
+ return hooks && hooks.get ?
+ hooks.get( this ) :
+ Tween.propHooks._default.get( this );
+ },
+ run: function( percent ) {
+ var eased,
+ hooks = Tween.propHooks[ this.prop ];
+
+ if ( this.options.duration ) {
+ this.pos = eased = jQuery.easing[ this.easing ](
+ percent, this.options.duration * percent, 0, 1, this.options.duration
+ );
+ } else {
+ this.pos = eased = percent;
+ }
+ this.now = ( this.end - this.start ) * eased + this.start;
+
+ if ( this.options.step ) {
+ this.options.step.call( this.elem, this.now, this );
+ }
+
+ if ( hooks && hooks.set ) {
+ hooks.set( this );
+ } else {
+ Tween.propHooks._default.set( this );
+ }
+ return this;
+ }
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+ _default: {
+ get: function( tween ) {
+ var result;
+
+ // Use a property on the element directly when it is not a DOM element,
+ // or when there is no matching style property that exists.
+ if ( tween.elem.nodeType !== 1 ||
+ tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
+ return tween.elem[ tween.prop ];
+ }
+
+ // Passing an empty string as a 3rd parameter to .css will automatically
+ // attempt a parseFloat and fallback to a string if the parse fails.
+ // Simple values such as "10px" are parsed to Float;
+ // complex values such as "rotate(1rad)" are returned as-is.
+ result = jQuery.css( tween.elem, tween.prop, "" );
+
+ // Empty strings, null, undefined and "auto" are converted to 0.
+ return !result || result === "auto" ? 0 : result;
+ },
+ set: function( tween ) {
+
+ // Use step hook for back compat.
+ // Use cssHook if its there.
+ // Use .style if available and use plain properties where available.
+ if ( jQuery.fx.step[ tween.prop ] ) {
+ jQuery.fx.step[ tween.prop ]( tween );
+ } else if ( tween.elem.nodeType === 1 &&
+ ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
+ jQuery.cssHooks[ tween.prop ] ) ) {
+ jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+ } else {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+ }
+};
+
+// Support: IE <=9 only
+// Panic based approach to setting things on disconnected nodes
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+ set: function( tween ) {
+ if ( tween.elem.nodeType && tween.elem.parentNode ) {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+};
+
+jQuery.easing = {
+ linear: function( p ) {
+ return p;
+ },
+ swing: function( p ) {
+ return 0.5 - Math.cos( p * Math.PI ) / 2;
+ },
+ _default: "swing"
+};
+
+jQuery.fx = Tween.prototype.init;
+
+// Back compat <1.8 extension point
+jQuery.fx.step = {};
+
+
+
+
+var
+ fxNow, inProgress,
+ rfxtypes = /^(?:toggle|show|hide)$/,
+ rrun = /queueHooks$/;
+
+function schedule() {
+ if ( inProgress ) {
+ if ( document.hidden === false && window.requestAnimationFrame ) {
+ window.requestAnimationFrame( schedule );
+ } else {
+ window.setTimeout( schedule, jQuery.fx.interval );
+ }
+
+ jQuery.fx.tick();
+ }
+}
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+ window.setTimeout( function() {
+ fxNow = undefined;
+ } );
+ return ( fxNow = Date.now() );
+}
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+ var which,
+ i = 0,
+ attrs = { height: type };
+
+ // If we include width, step value is 1 to do all cssExpand values,
+ // otherwise step value is 2 to skip over Left and Right
+ includeWidth = includeWidth ? 1 : 0;
+ for ( ; i < 4; i += 2 - includeWidth ) {
+ which = cssExpand[ i ];
+ attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+ }
+
+ if ( includeWidth ) {
+ attrs.opacity = attrs.width = type;
+ }
+
+ return attrs;
+}
+
+function createTween( value, prop, animation ) {
+ var tween,
+ collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
+ index = 0,
+ length = collection.length;
+ for ( ; index < length; index++ ) {
+ if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
+
+ // We're done with this property
+ return tween;
+ }
+ }
+}
+
+function defaultPrefilter( elem, props, opts ) {
+ var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
+ isBox = "width" in props || "height" in props,
+ anim = this,
+ orig = {},
+ style = elem.style,
+ hidden = elem.nodeType && isHiddenWithinTree( elem ),
+ dataShow = dataPriv.get( elem, "fxshow" );
+
+ // Queue-skipping animations hijack the fx hooks
+ if ( !opts.queue ) {
+ hooks = jQuery._queueHooks( elem, "fx" );
+ if ( hooks.unqueued == null ) {
+ hooks.unqueued = 0;
+ oldfire = hooks.empty.fire;
+ hooks.empty.fire = function() {
+ if ( !hooks.unqueued ) {
+ oldfire();
+ }
+ };
+ }
+ hooks.unqueued++;
+
+ anim.always( function() {
+
+ // Ensure the complete handler is called before this completes
+ anim.always( function() {
+ hooks.unqueued--;
+ if ( !jQuery.queue( elem, "fx" ).length ) {
+ hooks.empty.fire();
+ }
+ } );
+ } );
+ }
+
+ // Detect show/hide animations
+ for ( prop in props ) {
+ value = props[ prop ];
+ if ( rfxtypes.test( value ) ) {
+ delete props[ prop ];
+ toggle = toggle || value === "toggle";
+ if ( value === ( hidden ? "hide" : "show" ) ) {
+
+ // Pretend to be hidden if this is a "show" and
+ // there is still data from a stopped show/hide
+ if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
+ hidden = true;
+
+ // Ignore all other no-op show/hide data
+ } else {
+ continue;
+ }
+ }
+ orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
+ }
+ }
+
+ // Bail out if this is a no-op like .hide().hide()
+ propTween = !jQuery.isEmptyObject( props );
+ if ( !propTween && jQuery.isEmptyObject( orig ) ) {
+ return;
+ }
+
+ // Restrict "overflow" and "display" styles during box animations
+ if ( isBox && elem.nodeType === 1 ) {
+
+ // Support: IE <=9 - 11, Edge 12 - 15
+ // Record all 3 overflow attributes because IE does not infer the shorthand
+ // from identically-valued overflowX and overflowY and Edge just mirrors
+ // the overflowX value there.
+ opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+ // Identify a display type, preferring old show/hide data over the CSS cascade
+ restoreDisplay = dataShow && dataShow.display;
+ if ( restoreDisplay == null ) {
+ restoreDisplay = dataPriv.get( elem, "display" );
+ }
+ display = jQuery.css( elem, "display" );
+ if ( display === "none" ) {
+ if ( restoreDisplay ) {
+ display = restoreDisplay;
+ } else {
+
+ // Get nonempty value(s) by temporarily forcing visibility
+ showHide( [ elem ], true );
+ restoreDisplay = elem.style.display || restoreDisplay;
+ display = jQuery.css( elem, "display" );
+ showHide( [ elem ] );
+ }
+ }
+
+ // Animate inline elements as inline-block
+ if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
+ if ( jQuery.css( elem, "float" ) === "none" ) {
+
+ // Restore the original display value at the end of pure show/hide animations
+ if ( !propTween ) {
+ anim.done( function() {
+ style.display = restoreDisplay;
+ } );
+ if ( restoreDisplay == null ) {
+ display = style.display;
+ restoreDisplay = display === "none" ? "" : display;
+ }
+ }
+ style.display = "inline-block";
+ }
+ }
+ }
+
+ if ( opts.overflow ) {
+ style.overflow = "hidden";
+ anim.always( function() {
+ style.overflow = opts.overflow[ 0 ];
+ style.overflowX = opts.overflow[ 1 ];
+ style.overflowY = opts.overflow[ 2 ];
+ } );
+ }
+
+ // Implement show/hide animations
+ propTween = false;
+ for ( prop in orig ) {
+
+ // General show/hide setup for this element animation
+ if ( !propTween ) {
+ if ( dataShow ) {
+ if ( "hidden" in dataShow ) {
+ hidden = dataShow.hidden;
+ }
+ } else {
+ dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
+ }
+
+ // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
+ if ( toggle ) {
+ dataShow.hidden = !hidden;
+ }
+
+ // Show elements before animating them
+ if ( hidden ) {
+ showHide( [ elem ], true );
+ }
+
+ /* eslint-disable no-loop-func */
+
+ anim.done( function() {
+
+ /* eslint-enable no-loop-func */
+
+ // The final step of a "hide" animation is actually hiding the element
+ if ( !hidden ) {
+ showHide( [ elem ] );
+ }
+ dataPriv.remove( elem, "fxshow" );
+ for ( prop in orig ) {
+ jQuery.style( elem, prop, orig[ prop ] );
+ }
+ } );
+ }
+
+ // Per-property setup
+ propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
+ if ( !( prop in dataShow ) ) {
+ dataShow[ prop ] = propTween.start;
+ if ( hidden ) {
+ propTween.end = propTween.start;
+ propTween.start = 0;
+ }
+ }
+ }
+}
+
+function propFilter( props, specialEasing ) {
+ var index, name, easing, value, hooks;
+
+ // camelCase, specialEasing and expand cssHook pass
+ for ( index in props ) {
+ name = camelCase( index );
+ easing = specialEasing[ name ];
+ value = props[ index ];
+ if ( Array.isArray( value ) ) {
+ easing = value[ 1 ];
+ value = props[ index ] = value[ 0 ];
+ }
+
+ if ( index !== name ) {
+ props[ name ] = value;
+ delete props[ index ];
+ }
+
+ hooks = jQuery.cssHooks[ name ];
+ if ( hooks && "expand" in hooks ) {
+ value = hooks.expand( value );
+ delete props[ name ];
+
+ // Not quite $.extend, this won't overwrite existing keys.
+ // Reusing 'index' because we have the correct "name"
+ for ( index in value ) {
+ if ( !( index in props ) ) {
+ props[ index ] = value[ index ];
+ specialEasing[ index ] = easing;
+ }
+ }
+ } else {
+ specialEasing[ name ] = easing;
+ }
+ }
+}
+
+function Animation( elem, properties, options ) {
+ var result,
+ stopped,
+ index = 0,
+ length = Animation.prefilters.length,
+ deferred = jQuery.Deferred().always( function() {
+
+ // Don't match elem in the :animated selector
+ delete tick.elem;
+ } ),
+ tick = function() {
+ if ( stopped ) {
+ return false;
+ }
+ var currentTime = fxNow || createFxNow(),
+ remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+
+ // Support: Android 2.3 only
+ // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
+ temp = remaining / animation.duration || 0,
+ percent = 1 - temp,
+ index = 0,
+ length = animation.tweens.length;
+
+ for ( ; index < length; index++ ) {
+ animation.tweens[ index ].run( percent );
+ }
+
+ deferred.notifyWith( elem, [ animation, percent, remaining ] );
+
+ // If there's more to do, yield
+ if ( percent < 1 && length ) {
+ return remaining;
+ }
+
+ // If this was an empty animation, synthesize a final progress notification
+ if ( !length ) {
+ deferred.notifyWith( elem, [ animation, 1, 0 ] );
+ }
+
+ // Resolve the animation and report its conclusion
+ deferred.resolveWith( elem, [ animation ] );
+ return false;
+ },
+ animation = deferred.promise( {
+ elem: elem,
+ props: jQuery.extend( {}, properties ),
+ opts: jQuery.extend( true, {
+ specialEasing: {},
+ easing: jQuery.easing._default
+ }, options ),
+ originalProperties: properties,
+ originalOptions: options,
+ startTime: fxNow || createFxNow(),
+ duration: options.duration,
+ tweens: [],
+ createTween: function( prop, end ) {
+ var tween = jQuery.Tween( elem, animation.opts, prop, end,
+ animation.opts.specialEasing[ prop ] || animation.opts.easing );
+ animation.tweens.push( tween );
+ return tween;
+ },
+ stop: function( gotoEnd ) {
+ var index = 0,
+
+ // If we are going to the end, we want to run all the tweens
+ // otherwise we skip this part
+ length = gotoEnd ? animation.tweens.length : 0;
+ if ( stopped ) {
+ return this;
+ }
+ stopped = true;
+ for ( ; index < length; index++ ) {
+ animation.tweens[ index ].run( 1 );
+ }
+
+ // Resolve when we played the last frame; otherwise, reject
+ if ( gotoEnd ) {
+ deferred.notifyWith( elem, [ animation, 1, 0 ] );
+ deferred.resolveWith( elem, [ animation, gotoEnd ] );
+ } else {
+ deferred.rejectWith( elem, [ animation, gotoEnd ] );
+ }
+ return this;
+ }
+ } ),
+ props = animation.props;
+
+ propFilter( props, animation.opts.specialEasing );
+
+ for ( ; index < length; index++ ) {
+ result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
+ if ( result ) {
+ if ( isFunction( result.stop ) ) {
+ jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
+ result.stop.bind( result );
+ }
+ return result;
+ }
+ }
+
+ jQuery.map( props, createTween, animation );
+
+ if ( isFunction( animation.opts.start ) ) {
+ animation.opts.start.call( elem, animation );
+ }
+
+ // Attach callbacks from options
+ animation
+ .progress( animation.opts.progress )
+ .done( animation.opts.done, animation.opts.complete )
+ .fail( animation.opts.fail )
+ .always( animation.opts.always );
+
+ jQuery.fx.timer(
+ jQuery.extend( tick, {
+ elem: elem,
+ anim: animation,
+ queue: animation.opts.queue
+ } )
+ );
+
+ return animation;
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+ tweeners: {
+ "*": [ function( prop, value ) {
+ var tween = this.createTween( prop, value );
+ adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
+ return tween;
+ } ]
+ },
+
+ tweener: function( props, callback ) {
+ if ( isFunction( props ) ) {
+ callback = props;
+ props = [ "*" ];
+ } else {
+ props = props.match( rnothtmlwhite );
+ }
+
+ var prop,
+ index = 0,
+ length = props.length;
+
+ for ( ; index < length; index++ ) {
+ prop = props[ index ];
+ Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
+ Animation.tweeners[ prop ].unshift( callback );
+ }
+ },
+
+ prefilters: [ defaultPrefilter ],
+
+ prefilter: function( callback, prepend ) {
+ if ( prepend ) {
+ Animation.prefilters.unshift( callback );
+ } else {
+ Animation.prefilters.push( callback );
+ }
+ }
+} );
+
+jQuery.speed = function( speed, easing, fn ) {
+ var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+ complete: fn || !fn && easing ||
+ isFunction( speed ) && speed,
+ duration: speed,
+ easing: fn && easing || easing && !isFunction( easing ) && easing
+ };
+
+ // Go to the end state if fx are off
+ if ( jQuery.fx.off ) {
+ opt.duration = 0;
+
+ } else {
+ if ( typeof opt.duration !== "number" ) {
+ if ( opt.duration in jQuery.fx.speeds ) {
+ opt.duration = jQuery.fx.speeds[ opt.duration ];
+
+ } else {
+ opt.duration = jQuery.fx.speeds._default;
+ }
+ }
+ }
+
+ // Normalize opt.queue - true/undefined/null -> "fx"
+ if ( opt.queue == null || opt.queue === true ) {
+ opt.queue = "fx";
+ }
+
+ // Queueing
+ opt.old = opt.complete;
+
+ opt.complete = function() {
+ if ( isFunction( opt.old ) ) {
+ opt.old.call( this );
+ }
+
+ if ( opt.queue ) {
+ jQuery.dequeue( this, opt.queue );
+ }
+ };
+
+ return opt;
+};
+
+jQuery.fn.extend( {
+ fadeTo: function( speed, to, easing, callback ) {
+
+ // Show any hidden elements after setting opacity to 0
+ return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
+
+ // Animate to the value specified
+ .end().animate( { opacity: to }, speed, easing, callback );
+ },
+ animate: function( prop, speed, easing, callback ) {
+ var empty = jQuery.isEmptyObject( prop ),
+ optall = jQuery.speed( speed, easing, callback ),
+ doAnimation = function() {
+
+ // Operate on a copy of prop so per-property easing won't be lost
+ var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+
+ // Empty animations, or finishing resolves immediately
+ if ( empty || dataPriv.get( this, "finish" ) ) {
+ anim.stop( true );
+ }
+ };
+ doAnimation.finish = doAnimation;
+
+ return empty || optall.queue === false ?
+ this.each( doAnimation ) :
+ this.queue( optall.queue, doAnimation );
+ },
+ stop: function( type, clearQueue, gotoEnd ) {
+ var stopQueue = function( hooks ) {
+ var stop = hooks.stop;
+ delete hooks.stop;
+ stop( gotoEnd );
+ };
+
+ if ( typeof type !== "string" ) {
+ gotoEnd = clearQueue;
+ clearQueue = type;
+ type = undefined;
+ }
+ if ( clearQueue && type !== false ) {
+ this.queue( type || "fx", [] );
+ }
+
+ return this.each( function() {
+ var dequeue = true,
+ index = type != null && type + "queueHooks",
+ timers = jQuery.timers,
+ data = dataPriv.get( this );
+
+ if ( index ) {
+ if ( data[ index ] && data[ index ].stop ) {
+ stopQueue( data[ index ] );
+ }
+ } else {
+ for ( index in data ) {
+ if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+ stopQueue( data[ index ] );
+ }
+ }
+ }
+
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this &&
+ ( type == null || timers[ index ].queue === type ) ) {
+
+ timers[ index ].anim.stop( gotoEnd );
+ dequeue = false;
+ timers.splice( index, 1 );
+ }
+ }
+
+ // Start the next in the queue if the last step wasn't forced.
+ // Timers currently will call their complete callbacks, which
+ // will dequeue but only if they were gotoEnd.
+ if ( dequeue || !gotoEnd ) {
+ jQuery.dequeue( this, type );
+ }
+ } );
+ },
+ finish: function( type ) {
+ if ( type !== false ) {
+ type = type || "fx";
+ }
+ return this.each( function() {
+ var index,
+ data = dataPriv.get( this ),
+ queue = data[ type + "queue" ],
+ hooks = data[ type + "queueHooks" ],
+ timers = jQuery.timers,
+ length = queue ? queue.length : 0;
+
+ // Enable finishing flag on private data
+ data.finish = true;
+
+ // Empty the queue first
+ jQuery.queue( this, type, [] );
+
+ if ( hooks && hooks.stop ) {
+ hooks.stop.call( this, true );
+ }
+
+ // Look for any active animations, and finish them
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+ timers[ index ].anim.stop( true );
+ timers.splice( index, 1 );
+ }
+ }
+
+ // Look for any animations in the old queue and finish them
+ for ( index = 0; index < length; index++ ) {
+ if ( queue[ index ] && queue[ index ].finish ) {
+ queue[ index ].finish.call( this );
+ }
+ }
+
+ // Turn off finishing flag
+ delete data.finish;
+ } );
+ }
+} );
+
+jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
+ var cssFn = jQuery.fn[ name ];
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return speed == null || typeof speed === "boolean" ?
+ cssFn.apply( this, arguments ) :
+ this.animate( genFx( name, true ), speed, easing, callback );
+ };
+} );
+
+// Generate shortcuts for custom animations
+jQuery.each( {
+ slideDown: genFx( "show" ),
+ slideUp: genFx( "hide" ),
+ slideToggle: genFx( "toggle" ),
+ fadeIn: { opacity: "show" },
+ fadeOut: { opacity: "hide" },
+ fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return this.animate( props, speed, easing, callback );
+ };
+} );
+
+jQuery.timers = [];
+jQuery.fx.tick = function() {
+ var timer,
+ i = 0,
+ timers = jQuery.timers;
+
+ fxNow = Date.now();
+
+ for ( ; i < timers.length; i++ ) {
+ timer = timers[ i ];
+
+ // Run the timer and safely remove it when done (allowing for external removal)
+ if ( !timer() && timers[ i ] === timer ) {
+ timers.splice( i--, 1 );
+ }
+ }
+
+ if ( !timers.length ) {
+ jQuery.fx.stop();
+ }
+ fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+ jQuery.timers.push( timer );
+ jQuery.fx.start();
+};
+
+jQuery.fx.interval = 13;
+jQuery.fx.start = function() {
+ if ( inProgress ) {
+ return;
+ }
+
+ inProgress = true;
+ schedule();
+};
+
+jQuery.fx.stop = function() {
+ inProgress = null;
+};
+
+jQuery.fx.speeds = {
+ slow: 600,
+ fast: 200,
+
+ // Default speed
+ _default: 400
+};
+
+
+// Based off of the plugin by Clint Helfers, with permission.
+// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
+jQuery.fn.delay = function( time, type ) {
+ time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+ type = type || "fx";
+
+ return this.queue( type, function( next, hooks ) {
+ var timeout = window.setTimeout( next, time );
+ hooks.stop = function() {
+ window.clearTimeout( timeout );
+ };
+ } );
+};
+
+
+( function() {
+ var input = document.createElement( "input" ),
+ select = document.createElement( "select" ),
+ opt = select.appendChild( document.createElement( "option" ) );
+
+ input.type = "checkbox";
+
+ // Support: Android <=4.3 only
+ // Default value for a checkbox should be "on"
+ support.checkOn = input.value !== "";
+
+ // Support: IE <=11 only
+ // Must access selectedIndex to make default options select
+ support.optSelected = opt.selected;
+
+ // Support: IE <=11 only
+ // An input loses its value after becoming a radio
+ input = document.createElement( "input" );
+ input.value = "t";
+ input.type = "radio";
+ support.radioValue = input.value === "t";
+} )();
+
+
+var boolHook,
+ attrHandle = jQuery.expr.attrHandle;
+
+jQuery.fn.extend( {
+ attr: function( name, value ) {
+ return access( this, jQuery.attr, name, value, arguments.length > 1 );
+ },
+
+ removeAttr: function( name ) {
+ return this.each( function() {
+ jQuery.removeAttr( this, name );
+ } );
+ }
+} );
+
+jQuery.extend( {
+ attr: function( elem, name, value ) {
+ var ret, hooks,
+ nType = elem.nodeType;
+
+ // Don't get/set attributes on text, comment and attribute nodes
+ if ( nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ // Fallback to prop when attributes are not supported
+ if ( typeof elem.getAttribute === "undefined" ) {
+ return jQuery.prop( elem, name, value );
+ }
+
+ // Attribute hooks are determined by the lowercase version
+ // Grab necessary hook if one is defined
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+ hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
+ ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
+ }
+
+ if ( value !== undefined ) {
+ if ( value === null ) {
+ jQuery.removeAttr( elem, name );
+ return;
+ }
+
+ if ( hooks && "set" in hooks &&
+ ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+ return ret;
+ }
+
+ elem.setAttribute( name, value + "" );
+ return value;
+ }
+
+ if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+ return ret;
+ }
+
+ ret = jQuery.find.attr( elem, name );
+
+ // Non-existent attributes return null, we normalize to undefined
+ return ret == null ? undefined : ret;
+ },
+
+ attrHooks: {
+ type: {
+ set: function( elem, value ) {
+ if ( !support.radioValue && value === "radio" &&
+ nodeName( elem, "input" ) ) {
+ var val = elem.value;
+ elem.setAttribute( "type", value );
+ if ( val ) {
+ elem.value = val;
+ }
+ return value;
+ }
+ }
+ }
+ },
+
+ removeAttr: function( elem, value ) {
+ var name,
+ i = 0,
+
+ // Attribute names can contain non-HTML whitespace characters
+ // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
+ attrNames = value && value.match( rnothtmlwhite );
+
+ if ( attrNames && elem.nodeType === 1 ) {
+ while ( ( name = attrNames[ i++ ] ) ) {
+ elem.removeAttribute( name );
+ }
+ }
+ }
+} );
+
+// Hooks for boolean attributes
+boolHook = {
+ set: function( elem, value, name ) {
+ if ( value === false ) {
+
+ // Remove boolean attributes when set to false
+ jQuery.removeAttr( elem, name );
+ } else {
+ elem.setAttribute( name, name );
+ }
+ return name;
+ }
+};
+
+jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
+ var getter = attrHandle[ name ] || jQuery.find.attr;
+
+ attrHandle[ name ] = function( elem, name, isXML ) {
+ var ret, handle,
+ lowercaseName = name.toLowerCase();
+
+ if ( !isXML ) {
+
+ // Avoid an infinite loop by temporarily removing this function from the getter
+ handle = attrHandle[ lowercaseName ];
+ attrHandle[ lowercaseName ] = ret;
+ ret = getter( elem, name, isXML ) != null ?
+ lowercaseName :
+ null;
+ attrHandle[ lowercaseName ] = handle;
+ }
+ return ret;
+ };
+} );
+
+
+
+
+var rfocusable = /^(?:input|select|textarea|button)$/i,
+ rclickable = /^(?:a|area)$/i;
+
+jQuery.fn.extend( {
+ prop: function( name, value ) {
+ return access( this, jQuery.prop, name, value, arguments.length > 1 );
+ },
+
+ removeProp: function( name ) {
+ return this.each( function() {
+ delete this[ jQuery.propFix[ name ] || name ];
+ } );
+ }
+} );
+
+jQuery.extend( {
+ prop: function( elem, name, value ) {
+ var ret, hooks,
+ nType = elem.nodeType;
+
+ // Don't get/set properties on text, comment and attribute nodes
+ if ( nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+
+ // Fix name and attach hooks
+ name = jQuery.propFix[ name ] || name;
+ hooks = jQuery.propHooks[ name ];
+ }
+
+ if ( value !== undefined ) {
+ if ( hooks && "set" in hooks &&
+ ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+ return ret;
+ }
+
+ return ( elem[ name ] = value );
+ }
+
+ if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+ return ret;
+ }
+
+ return elem[ name ];
+ },
+
+ propHooks: {
+ tabIndex: {
+ get: function( elem ) {
+
+ // Support: IE <=9 - 11 only
+ // elem.tabIndex doesn't always return the
+ // correct value when it hasn't been explicitly set
+ // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+ // Use proper attribute retrieval(#12072)
+ var tabindex = jQuery.find.attr( elem, "tabindex" );
+
+ if ( tabindex ) {
+ return parseInt( tabindex, 10 );
+ }
+
+ if (
+ rfocusable.test( elem.nodeName ) ||
+ rclickable.test( elem.nodeName ) &&
+ elem.href
+ ) {
+ return 0;
+ }
+
+ return -1;
+ }
+ }
+ },
+
+ propFix: {
+ "for": "htmlFor",
+ "class": "className"
+ }
+} );
+
+// Support: IE <=11 only
+// Accessing the selectedIndex property
+// forces the browser to respect setting selected
+// on the option
+// The getter ensures a default option is selected
+// when in an optgroup
+// eslint rule "no-unused-expressions" is disabled for this code
+// since it considers such accessions noop
+if ( !support.optSelected ) {
+ jQuery.propHooks.selected = {
+ get: function( elem ) {
+
+ /* eslint no-unused-expressions: "off" */
+
+ var parent = elem.parentNode;
+ if ( parent && parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ return null;
+ },
+ set: function( elem ) {
+
+ /* eslint no-unused-expressions: "off" */
+
+ var parent = elem.parentNode;
+ if ( parent ) {
+ parent.selectedIndex;
+
+ if ( parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ }
+ }
+ };
+}
+
+jQuery.each( [
+ "tabIndex",
+ "readOnly",
+ "maxLength",
+ "cellSpacing",
+ "cellPadding",
+ "rowSpan",
+ "colSpan",
+ "useMap",
+ "frameBorder",
+ "contentEditable"
+], function() {
+ jQuery.propFix[ this.toLowerCase() ] = this;
+} );
+
+
+
+
+ // Strip and collapse whitespace according to HTML spec
+ // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
+ function stripAndCollapse( value ) {
+ var tokens = value.match( rnothtmlwhite ) || [];
+ return tokens.join( " " );
+ }
+
+
+function getClass( elem ) {
+ return elem.getAttribute && elem.getAttribute( "class" ) || "";
+}
+
+function classesToArray( value ) {
+ if ( Array.isArray( value ) ) {
+ return value;
+ }
+ if ( typeof value === "string" ) {
+ return value.match( rnothtmlwhite ) || [];
+ }
+ return [];
+}
+
+jQuery.fn.extend( {
+ addClass: function( value ) {
+ var classes, elem, cur, curValue, clazz, j, finalValue,
+ i = 0;
+
+ if ( isFunction( value ) ) {
+ return this.each( function( j ) {
+ jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
+ } );
+ }
+
+ classes = classesToArray( value );
+
+ if ( classes.length ) {
+ while ( ( elem = this[ i++ ] ) ) {
+ curValue = getClass( elem );
+ cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+ if ( cur ) {
+ j = 0;
+ while ( ( clazz = classes[ j++ ] ) ) {
+ if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+ cur += clazz + " ";
+ }
+ }
+
+ // Only assign if different to avoid unneeded rendering.
+ finalValue = stripAndCollapse( cur );
+ if ( curValue !== finalValue ) {
+ elem.setAttribute( "class", finalValue );
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ removeClass: function( value ) {
+ var classes, elem, cur, curValue, clazz, j, finalValue,
+ i = 0;
+
+ if ( isFunction( value ) ) {
+ return this.each( function( j ) {
+ jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
+ } );
+ }
+
+ if ( !arguments.length ) {
+ return this.attr( "class", "" );
+ }
+
+ classes = classesToArray( value );
+
+ if ( classes.length ) {
+ while ( ( elem = this[ i++ ] ) ) {
+ curValue = getClass( elem );
+
+ // This expression is here for better compressibility (see addClass)
+ cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+ if ( cur ) {
+ j = 0;
+ while ( ( clazz = classes[ j++ ] ) ) {
+
+ // Remove *all* instances
+ while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
+ cur = cur.replace( " " + clazz + " ", " " );
+ }
+ }
+
+ // Only assign if different to avoid unneeded rendering.
+ finalValue = stripAndCollapse( cur );
+ if ( curValue !== finalValue ) {
+ elem.setAttribute( "class", finalValue );
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ toggleClass: function( value, stateVal ) {
+ var type = typeof value,
+ isValidValue = type === "string" || Array.isArray( value );
+
+ if ( typeof stateVal === "boolean" && isValidValue ) {
+ return stateVal ? this.addClass( value ) : this.removeClass( value );
+ }
+
+ if ( isFunction( value ) ) {
+ return this.each( function( i ) {
+ jQuery( this ).toggleClass(
+ value.call( this, i, getClass( this ), stateVal ),
+ stateVal
+ );
+ } );
+ }
+
+ return this.each( function() {
+ var className, i, self, classNames;
+
+ if ( isValidValue ) {
+
+ // Toggle individual class names
+ i = 0;
+ self = jQuery( this );
+ classNames = classesToArray( value );
+
+ while ( ( className = classNames[ i++ ] ) ) {
+
+ // Check each className given, space separated list
+ if ( self.hasClass( className ) ) {
+ self.removeClass( className );
+ } else {
+ self.addClass( className );
+ }
+ }
+
+ // Toggle whole class name
+ } else if ( value === undefined || type === "boolean" ) {
+ className = getClass( this );
+ if ( className ) {
+
+ // Store className if set
+ dataPriv.set( this, "__className__", className );
+ }
+
+ // If the element has a class name or if we're passed `false`,
+ // then remove the whole classname (if there was one, the above saved it).
+ // Otherwise bring back whatever was previously saved (if anything),
+ // falling back to the empty string if nothing was stored.
+ if ( this.setAttribute ) {
+ this.setAttribute( "class",
+ className || value === false ?
+ "" :
+ dataPriv.get( this, "__className__" ) || ""
+ );
+ }
+ }
+ } );
+ },
+
+ hasClass: function( selector ) {
+ var className, elem,
+ i = 0;
+
+ className = " " + selector + " ";
+ while ( ( elem = this[ i++ ] ) ) {
+ if ( elem.nodeType === 1 &&
+ ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+} );
+
+
+
+
+var rreturn = /\r/g;
+
+jQuery.fn.extend( {
+ val: function( value ) {
+ var hooks, ret, valueIsFunction,
+ elem = this[ 0 ];
+
+ if ( !arguments.length ) {
+ if ( elem ) {
+ hooks = jQuery.valHooks[ elem.type ] ||
+ jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+ if ( hooks &&
+ "get" in hooks &&
+ ( ret = hooks.get( elem, "value" ) ) !== undefined
+ ) {
+ return ret;
+ }
+
+ ret = elem.value;
+
+ // Handle most common string cases
+ if ( typeof ret === "string" ) {
+ return ret.replace( rreturn, "" );
+ }
+
+ // Handle cases where value is null/undef or number
+ return ret == null ? "" : ret;
+ }
+
+ return;
+ }
+
+ valueIsFunction = isFunction( value );
+
+ return this.each( function( i ) {
+ var val;
+
+ if ( this.nodeType !== 1 ) {
+ return;
+ }
+
+ if ( valueIsFunction ) {
+ val = value.call( this, i, jQuery( this ).val() );
+ } else {
+ val = value;
+ }
+
+ // Treat null/undefined as ""; convert numbers to string
+ if ( val == null ) {
+ val = "";
+
+ } else if ( typeof val === "number" ) {
+ val += "";
+
+ } else if ( Array.isArray( val ) ) {
+ val = jQuery.map( val, function( value ) {
+ return value == null ? "" : value + "";
+ } );
+ }
+
+ hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+ // If set returns undefined, fall back to normal setting
+ if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
+ this.value = val;
+ }
+ } );
+ }
+} );
+
+jQuery.extend( {
+ valHooks: {
+ option: {
+ get: function( elem ) {
+
+ var val = jQuery.find.attr( elem, "value" );
+ return val != null ?
+ val :
+
+ // Support: IE <=10 - 11 only
+ // option.text throws exceptions (#14686, #14858)
+ // Strip and collapse whitespace
+ // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
+ stripAndCollapse( jQuery.text( elem ) );
+ }
+ },
+ select: {
+ get: function( elem ) {
+ var value, option, i,
+ options = elem.options,
+ index = elem.selectedIndex,
+ one = elem.type === "select-one",
+ values = one ? null : [],
+ max = one ? index + 1 : options.length;
+
+ if ( index < 0 ) {
+ i = max;
+
+ } else {
+ i = one ? index : 0;
+ }
+
+ // Loop through all the selected options
+ for ( ; i < max; i++ ) {
+ option = options[ i ];
+
+ // Support: IE <=9 only
+ // IE8-9 doesn't update selected after form reset (#2551)
+ if ( ( option.selected || i === index ) &&
+
+ // Don't return options that are disabled or in a disabled optgroup
+ !option.disabled &&
+ ( !option.parentNode.disabled ||
+ !nodeName( option.parentNode, "optgroup" ) ) ) {
+
+ // Get the specific value for the option
+ value = jQuery( option ).val();
+
+ // We don't need an array for one selects
+ if ( one ) {
+ return value;
+ }
+
+ // Multi-Selects return an array
+ values.push( value );
+ }
+ }
+
+ return values;
+ },
+
+ set: function( elem, value ) {
+ var optionSet, option,
+ options = elem.options,
+ values = jQuery.makeArray( value ),
+ i = options.length;
+
+ while ( i-- ) {
+ option = options[ i ];
+
+ /* eslint-disable no-cond-assign */
+
+ if ( option.selected =
+ jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
+ ) {
+ optionSet = true;
+ }
+
+ /* eslint-enable no-cond-assign */
+ }
+
+ // Force browsers to behave consistently when non-matching value is set
+ if ( !optionSet ) {
+ elem.selectedIndex = -1;
+ }
+ return values;
+ }
+ }
+ }
+} );
+
+// Radios and checkboxes getter/setter
+jQuery.each( [ "radio", "checkbox" ], function() {
+ jQuery.valHooks[ this ] = {
+ set: function( elem, value ) {
+ if ( Array.isArray( value ) ) {
+ return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
+ }
+ }
+ };
+ if ( !support.checkOn ) {
+ jQuery.valHooks[ this ].get = function( elem ) {
+ return elem.getAttribute( "value" ) === null ? "on" : elem.value;
+ };
+ }
+} );
+
+
+
+
+// Return jQuery for attributes-only inclusion
+
+
+support.focusin = "onfocusin" in window;
+
+
+var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
+ stopPropagationCallback = function( e ) {
+ e.stopPropagation();
+ };
+
+jQuery.extend( jQuery.event, {
+
+ trigger: function( event, data, elem, onlyHandlers ) {
+
+ var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
+ eventPath = [ elem || document ],
+ type = hasOwn.call( event, "type" ) ? event.type : event,
+ namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
+
+ cur = lastElement = tmp = elem = elem || document;
+
+ // Don't do events on text and comment nodes
+ if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+ return;
+ }
+
+ // focus/blur morphs to focusin/out; ensure we're not firing them right now
+ if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+ return;
+ }
+
+ if ( type.indexOf( "." ) > -1 ) {
+
+ // Namespaced trigger; create a regexp to match event type in handle()
+ namespaces = type.split( "." );
+ type = namespaces.shift();
+ namespaces.sort();
+ }
+ ontype = type.indexOf( ":" ) < 0 && "on" + type;
+
+ // Caller can pass in a jQuery.Event object, Object, or just an event type string
+ event = event[ jQuery.expando ] ?
+ event :
+ new jQuery.Event( type, typeof event === "object" && event );
+
+ // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
+ event.isTrigger = onlyHandlers ? 2 : 3;
+ event.namespace = namespaces.join( "." );
+ event.rnamespace = event.namespace ?
+ new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
+ null;
+
+ // Clean up the event in case it is being reused
+ event.result = undefined;
+ if ( !event.target ) {
+ event.target = elem;
+ }
+
+ // Clone any incoming data and prepend the event, creating the handler arg list
+ data = data == null ?
+ [ event ] :
+ jQuery.makeArray( data, [ event ] );
+
+ // Allow special events to draw outside the lines
+ special = jQuery.event.special[ type ] || {};
+ if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+ return;
+ }
+
+ // Determine event propagation path in advance, per W3C events spec (#9951)
+ // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+ if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {
+
+ bubbleType = special.delegateType || type;
+ if ( !rfocusMorph.test( bubbleType + type ) ) {
+ cur = cur.parentNode;
+ }
+ for ( ; cur; cur = cur.parentNode ) {
+ eventPath.push( cur );
+ tmp = cur;
+ }
+
+ // Only add window if we got to document (e.g., not plain obj or detached DOM)
+ if ( tmp === ( elem.ownerDocument || document ) ) {
+ eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+ }
+ }
+
+ // Fire handlers on the event path
+ i = 0;
+ while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
+ lastElement = cur;
+ event.type = i > 1 ?
+ bubbleType :
+ special.bindType || type;
+
+ // jQuery handler
+ handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
+ dataPriv.get( cur, "handle" );
+ if ( handle ) {
+ handle.apply( cur, data );
+ }
+
+ // Native handler
+ handle = ontype && cur[ ontype ];
+ if ( handle && handle.apply && acceptData( cur ) ) {
+ event.result = handle.apply( cur, data );
+ if ( event.result === false ) {
+ event.preventDefault();
+ }
+ }
+ }
+ event.type = type;
+
+ // If nobody prevented the default action, do it now
+ if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+ if ( ( !special._default ||
+ special._default.apply( eventPath.pop(), data ) === false ) &&
+ acceptData( elem ) ) {
+
+ // Call a native DOM method on the target with the same name as the event.
+ // Don't do default actions on window, that's where global variables be (#6170)
+ if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {
+
+ // Don't re-trigger an onFOO event when we call its FOO() method
+ tmp = elem[ ontype ];
+
+ if ( tmp ) {
+ elem[ ontype ] = null;
+ }
+
+ // Prevent re-triggering of the same event, since we already bubbled it above
+ jQuery.event.triggered = type;
+
+ if ( event.isPropagationStopped() ) {
+ lastElement.addEventListener( type, stopPropagationCallback );
+ }
+
+ elem[ type ]();
+
+ if ( event.isPropagationStopped() ) {
+ lastElement.removeEventListener( type, stopPropagationCallback );
+ }
+
+ jQuery.event.triggered = undefined;
+
+ if ( tmp ) {
+ elem[ ontype ] = tmp;
+ }
+ }
+ }
+ }
+
+ return event.result;
+ },
+
+ // Piggyback on a donor event to simulate a different one
+ // Used only for `focus(in | out)` events
+ simulate: function( type, elem, event ) {
+ var e = jQuery.extend(
+ new jQuery.Event(),
+ event,
+ {
+ type: type,
+ isSimulated: true
+ }
+ );
+
+ jQuery.event.trigger( e, null, elem );
+ }
+
+} );
+
+jQuery.fn.extend( {
+
+ trigger: function( type, data ) {
+ return this.each( function() {
+ jQuery.event.trigger( type, data, this );
+ } );
+ },
+ triggerHandler: function( type, data ) {
+ var elem = this[ 0 ];
+ if ( elem ) {
+ return jQuery.event.trigger( type, data, elem, true );
+ }
+ }
+} );
+
+
+// Support: Firefox <=44
+// Firefox doesn't have focus(in | out) events
+// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
+//
+// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
+// focus(in | out) events fire after focus & blur events,
+// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
+// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
+if ( !support.focusin ) {
+ jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+ // Attach a single capturing handler on the document while someone wants focusin/focusout
+ var handler = function( event ) {
+ jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
+ };
+
+ jQuery.event.special[ fix ] = {
+ setup: function() {
+ var doc = this.ownerDocument || this,
+ attaches = dataPriv.access( doc, fix );
+
+ if ( !attaches ) {
+ doc.addEventListener( orig, handler, true );
+ }
+ dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
+ },
+ teardown: function() {
+ var doc = this.ownerDocument || this,
+ attaches = dataPriv.access( doc, fix ) - 1;
+
+ if ( !attaches ) {
+ doc.removeEventListener( orig, handler, true );
+ dataPriv.remove( doc, fix );
+
+ } else {
+ dataPriv.access( doc, fix, attaches );
+ }
+ }
+ };
+ } );
+}
+var location = window.location;
+
+var nonce = Date.now();
+
+var rquery = ( /\?/ );
+
+
+
+// Cross-browser xml parsing
+jQuery.parseXML = function( data ) {
+ var xml;
+ if ( !data || typeof data !== "string" ) {
+ return null;
+ }
+
+ // Support: IE 9 - 11 only
+ // IE throws on parseFromString with invalid input.
+ try {
+ xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
+ } catch ( e ) {
+ xml = undefined;
+ }
+
+ if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
+ jQuery.error( "Invalid XML: " + data );
+ }
+ return xml;
+};
+
+
+var
+ rbracket = /\[\]$/,
+ rCRLF = /\r?\n/g,
+ rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
+ rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+function buildParams( prefix, obj, traditional, add ) {
+ var name;
+
+ if ( Array.isArray( obj ) ) {
+
+ // Serialize array item.
+ jQuery.each( obj, function( i, v ) {
+ if ( traditional || rbracket.test( prefix ) ) {
+
+ // Treat each array item as a scalar.
+ add( prefix, v );
+
+ } else {
+
+ // Item is non-scalar (array or object), encode its numeric index.
+ buildParams(
+ prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
+ v,
+ traditional,
+ add
+ );
+ }
+ } );
+
+ } else if ( !traditional && toType( obj ) === "object" ) {
+
+ // Serialize object item.
+ for ( name in obj ) {
+ buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+ }
+
+ } else {
+
+ // Serialize scalar item.
+ add( prefix, obj );
+ }
+}
+
+// Serialize an array of form elements or a set of
+// key/values into a query string
+jQuery.param = function( a, traditional ) {
+ var prefix,
+ s = [],
+ add = function( key, valueOrFunction ) {
+
+ // If value is a function, invoke it and use its return value
+ var value = isFunction( valueOrFunction ) ?
+ valueOrFunction() :
+ valueOrFunction;
+
+ s[ s.length ] = encodeURIComponent( key ) + "=" +
+ encodeURIComponent( value == null ? "" : value );
+ };
+
+ // If an array was passed in, assume that it is an array of form elements.
+ if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+
+ // Serialize the form elements
+ jQuery.each( a, function() {
+ add( this.name, this.value );
+ } );
+
+ } else {
+
+ // If traditional, encode the "old" way (the way 1.3.2 or older
+ // did it), otherwise encode params recursively.
+ for ( prefix in a ) {
+ buildParams( prefix, a[ prefix ], traditional, add );
+ }
+ }
+
+ // Return the resulting serialization
+ return s.join( "&" );
+};
+
+jQuery.fn.extend( {
+ serialize: function() {
+ return jQuery.param( this.serializeArray() );
+ },
+ serializeArray: function() {
+ return this.map( function() {
+
+ // Can add propHook for "elements" to filter or add form elements
+ var elements = jQuery.prop( this, "elements" );
+ return elements ? jQuery.makeArray( elements ) : this;
+ } )
+ .filter( function() {
+ var type = this.type;
+
+ // Use .is( ":disabled" ) so that fieldset[disabled] works
+ return this.name && !jQuery( this ).is( ":disabled" ) &&
+ rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+ ( this.checked || !rcheckableType.test( type ) );
+ } )
+ .map( function( i, elem ) {
+ var val = jQuery( this ).val();
+
+ if ( val == null ) {
+ return null;
+ }
+
+ if ( Array.isArray( val ) ) {
+ return jQuery.map( val, function( val ) {
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ } );
+ }
+
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ } ).get();
+ }
+} );
+
+
+var
+ r20 = /%20/g,
+ rhash = /#.*$/,
+ rantiCache = /([?&])_=[^&]*/,
+ rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
+
+ // #7653, #8125, #8152: local protocol detection
+ rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+ rnoContent = /^(?:GET|HEAD)$/,
+ rprotocol = /^\/\//,
+
+ /* Prefilters
+ * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+ * 2) These are called:
+ * - BEFORE asking for a transport
+ * - AFTER param serialization (s.data is a string if s.processData is true)
+ * 3) key is the dataType
+ * 4) the catchall symbol "*" can be used
+ * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+ */
+ prefilters = {},
+
+ /* Transports bindings
+ * 1) key is the dataType
+ * 2) the catchall symbol "*" can be used
+ * 3) selection will start with transport dataType and THEN go to "*" if needed
+ */
+ transports = {},
+
+ // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+ allTypes = "*/".concat( "*" ),
+
+ // Anchor tag for parsing the document origin
+ originAnchor = document.createElement( "a" );
+ originAnchor.href = location.href;
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+ // dataTypeExpression is optional and defaults to "*"
+ return function( dataTypeExpression, func ) {
+
+ if ( typeof dataTypeExpression !== "string" ) {
+ func = dataTypeExpression;
+ dataTypeExpression = "*";
+ }
+
+ var dataType,
+ i = 0,
+ dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
+
+ if ( isFunction( func ) ) {
+
+ // For each dataType in the dataTypeExpression
+ while ( ( dataType = dataTypes[ i++ ] ) ) {
+
+ // Prepend if requested
+ if ( dataType[ 0 ] === "+" ) {
+ dataType = dataType.slice( 1 ) || "*";
+ ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
+
+ // Otherwise append
+ } else {
+ ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
+ }
+ }
+ }
+ };
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+ var inspected = {},
+ seekingTransport = ( structure === transports );
+
+ function inspect( dataType ) {
+ var selected;
+ inspected[ dataType ] = true;
+ jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+ var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+ if ( typeof dataTypeOrTransport === "string" &&
+ !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+
+ options.dataTypes.unshift( dataTypeOrTransport );
+ inspect( dataTypeOrTransport );
+ return false;
+ } else if ( seekingTransport ) {
+ return !( selected = dataTypeOrTransport );
+ }
+ } );
+ return selected;
+ }
+
+ return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+ var key, deep,
+ flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+ for ( key in src ) {
+ if ( src[ key ] !== undefined ) {
+ ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
+ }
+ }
+ if ( deep ) {
+ jQuery.extend( true, target, deep );
+ }
+
+ return target;
+}
+
+/* Handles responses to an ajax request:
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+ var ct, type, finalDataType, firstDataType,
+ contents = s.contents,
+ dataTypes = s.dataTypes;
+
+ // Remove auto dataType and get content-type in the process
+ while ( dataTypes[ 0 ] === "*" ) {
+ dataTypes.shift();
+ if ( ct === undefined ) {
+ ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
+ }
+ }
+
+ // Check if we're dealing with a known content-type
+ if ( ct ) {
+ for ( type in contents ) {
+ if ( contents[ type ] && contents[ type ].test( ct ) ) {
+ dataTypes.unshift( type );
+ break;
+ }
+ }
+ }
+
+ // Check to see if we have a response for the expected dataType
+ if ( dataTypes[ 0 ] in responses ) {
+ finalDataType = dataTypes[ 0 ];
+ } else {
+
+ // Try convertible dataTypes
+ for ( type in responses ) {
+ if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
+ finalDataType = type;
+ break;
+ }
+ if ( !firstDataType ) {
+ firstDataType = type;
+ }
+ }
+
+ // Or just use first one
+ finalDataType = finalDataType || firstDataType;
+ }
+
+ // If we found a dataType
+ // We add the dataType to the list if needed
+ // and return the corresponding response
+ if ( finalDataType ) {
+ if ( finalDataType !== dataTypes[ 0 ] ) {
+ dataTypes.unshift( finalDataType );
+ }
+ return responses[ finalDataType ];
+ }
+}
+
+/* Chain conversions given the request and the original response
+ * Also sets the responseXXX fields on the jqXHR instance
+ */
+function ajaxConvert( s, response, jqXHR, isSuccess ) {
+ var conv2, current, conv, tmp, prev,
+ converters = {},
+
+ // Work with a copy of dataTypes in case we need to modify it for conversion
+ dataTypes = s.dataTypes.slice();
+
+ // Create converters map with lowercased keys
+ if ( dataTypes[ 1 ] ) {
+ for ( conv in s.converters ) {
+ converters[ conv.toLowerCase() ] = s.converters[ conv ];
+ }
+ }
+
+ current = dataTypes.shift();
+
+ // Convert to each sequential dataType
+ while ( current ) {
+
+ if ( s.responseFields[ current ] ) {
+ jqXHR[ s.responseFields[ current ] ] = response;
+ }
+
+ // Apply the dataFilter if provided
+ if ( !prev && isSuccess && s.dataFilter ) {
+ response = s.dataFilter( response, s.dataType );
+ }
+
+ prev = current;
+ current = dataTypes.shift();
+
+ if ( current ) {
+
+ // There's only work to do if current dataType is non-auto
+ if ( current === "*" ) {
+
+ current = prev;
+
+ // Convert response if prev dataType is non-auto and differs from current
+ } else if ( prev !== "*" && prev !== current ) {
+
+ // Seek a direct converter
+ conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+ // If none found, seek a pair
+ if ( !conv ) {
+ for ( conv2 in converters ) {
+
+ // If conv2 outputs current
+ tmp = conv2.split( " " );
+ if ( tmp[ 1 ] === current ) {
+
+ // If prev can be converted to accepted input
+ conv = converters[ prev + " " + tmp[ 0 ] ] ||
+ converters[ "* " + tmp[ 0 ] ];
+ if ( conv ) {
+
+ // Condense equivalence converters
+ if ( conv === true ) {
+ conv = converters[ conv2 ];
+
+ // Otherwise, insert the intermediate dataType
+ } else if ( converters[ conv2 ] !== true ) {
+ current = tmp[ 0 ];
+ dataTypes.unshift( tmp[ 1 ] );
+ }
+ break;
+ }
+ }
+ }
+ }
+
+ // Apply converter (if not an equivalence)
+ if ( conv !== true ) {
+
+ // Unless errors are allowed to bubble, catch and return them
+ if ( conv && s.throws ) {
+ response = conv( response );
+ } else {
+ try {
+ response = conv( response );
+ } catch ( e ) {
+ return {
+ state: "parsererror",
+ error: conv ? e : "No conversion from " + prev + " to " + current
+ };
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return { state: "success", data: response };
+}
+
+jQuery.extend( {
+
+ // Counter for holding the number of active queries
+ active: 0,
+
+ // Last-Modified header cache for next request
+ lastModified: {},
+ etag: {},
+
+ ajaxSettings: {
+ url: location.href,
+ type: "GET",
+ isLocal: rlocalProtocol.test( location.protocol ),
+ global: true,
+ processData: true,
+ async: true,
+ contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+
+ /*
+ timeout: 0,
+ data: null,
+ dataType: null,
+ username: null,
+ password: null,
+ cache: null,
+ throws: false,
+ traditional: false,
+ headers: {},
+ */
+
+ accepts: {
+ "*": allTypes,
+ text: "text/plain",
+ html: "text/html",
+ xml: "application/xml, text/xml",
+ json: "application/json, text/javascript"
+ },
+
+ contents: {
+ xml: /\bxml\b/,
+ html: /\bhtml/,
+ json: /\bjson\b/
+ },
+
+ responseFields: {
+ xml: "responseXML",
+ text: "responseText",
+ json: "responseJSON"
+ },
+
+ // Data converters
+ // Keys separate source (or catchall "*") and destination types with a single space
+ converters: {
+
+ // Convert anything to text
+ "* text": String,
+
+ // Text to html (true = no transformation)
+ "text html": true,
+
+ // Evaluate text as a json expression
+ "text json": JSON.parse,
+
+ // Parse text as xml
+ "text xml": jQuery.parseXML
+ },
+
+ // For options that shouldn't be deep extended:
+ // you can add your own custom options here if
+ // and when you create one that shouldn't be
+ // deep extended (see ajaxExtend)
+ flatOptions: {
+ url: true,
+ context: true
+ }
+ },
+
+ // Creates a full fledged settings object into target
+ // with both ajaxSettings and settings fields.
+ // If target is omitted, writes into ajaxSettings.
+ ajaxSetup: function( target, settings ) {
+ return settings ?
+
+ // Building a settings object
+ ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+ // Extending ajaxSettings
+ ajaxExtend( jQuery.ajaxSettings, target );
+ },
+
+ ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+ ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+ // Main method
+ ajax: function( url, options ) {
+
+ // If url is an object, simulate pre-1.5 signature
+ if ( typeof url === "object" ) {
+ options = url;
+ url = undefined;
+ }
+
+ // Force options to be an object
+ options = options || {};
+
+ var transport,
+
+ // URL without anti-cache param
+ cacheURL,
+
+ // Response headers
+ responseHeadersString,
+ responseHeaders,
+
+ // timeout handle
+ timeoutTimer,
+
+ // Url cleanup var
+ urlAnchor,
+
+ // Request state (becomes false upon send and true upon completion)
+ completed,
+
+ // To know if global events are to be dispatched
+ fireGlobals,
+
+ // Loop variable
+ i,
+
+ // uncached part of the url
+ uncached,
+
+ // Create the final options object
+ s = jQuery.ajaxSetup( {}, options ),
+
+ // Callbacks context
+ callbackContext = s.context || s,
+
+ // Context for global events is callbackContext if it is a DOM node or jQuery collection
+ globalEventContext = s.context &&
+ ( callbackContext.nodeType || callbackContext.jquery ) ?
+ jQuery( callbackContext ) :
+ jQuery.event,
+
+ // Deferreds
+ deferred = jQuery.Deferred(),
+ completeDeferred = jQuery.Callbacks( "once memory" ),
+
+ // Status-dependent callbacks
+ statusCode = s.statusCode || {},
+
+ // Headers (they are sent all at once)
+ requestHeaders = {},
+ requestHeadersNames = {},
+
+ // Default abort message
+ strAbort = "canceled",
+
+ // Fake xhr
+ jqXHR = {
+ readyState: 0,
+
+ // Builds headers hashtable if needed
+ getResponseHeader: function( key ) {
+ var match;
+ if ( completed ) {
+ if ( !responseHeaders ) {
+ responseHeaders = {};
+ while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
+ responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
+ }
+ }
+ match = responseHeaders[ key.toLowerCase() ];
+ }
+ return match == null ? null : match;
+ },
+
+ // Raw string
+ getAllResponseHeaders: function() {
+ return completed ? responseHeadersString : null;
+ },
+
+ // Caches the header
+ setRequestHeader: function( name, value ) {
+ if ( completed == null ) {
+ name = requestHeadersNames[ name.toLowerCase() ] =
+ requestHeadersNames[ name.toLowerCase() ] || name;
+ requestHeaders[ name ] = value;
+ }
+ return this;
+ },
+
+ // Overrides response content-type header
+ overrideMimeType: function( type ) {
+ if ( completed == null ) {
+ s.mimeType = type;
+ }
+ return this;
+ },
+
+ // Status-dependent callbacks
+ statusCode: function( map ) {
+ var code;
+ if ( map ) {
+ if ( completed ) {
+
+ // Execute the appropriate callbacks
+ jqXHR.always( map[ jqXHR.status ] );
+ } else {
+
+ // Lazy-add the new callbacks in a way that preserves old ones
+ for ( code in map ) {
+ statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+ }
+ }
+ }
+ return this;
+ },
+
+ // Cancel the request
+ abort: function( statusText ) {
+ var finalText = statusText || strAbort;
+ if ( transport ) {
+ transport.abort( finalText );
+ }
+ done( 0, finalText );
+ return this;
+ }
+ };
+
+ // Attach deferreds
+ deferred.promise( jqXHR );
+
+ // Add protocol if not provided (prefilters might expect it)
+ // Handle falsy url in the settings object (#10093: consistency with old signature)
+ // We also use the url parameter if available
+ s.url = ( ( url || s.url || location.href ) + "" )
+ .replace( rprotocol, location.protocol + "//" );
+
+ // Alias method option to type as per ticket #12004
+ s.type = options.method || options.type || s.method || s.type;
+
+ // Extract dataTypes list
+ s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
+
+ // A cross-domain request is in order when the origin doesn't match the current origin.
+ if ( s.crossDomain == null ) {
+ urlAnchor = document.createElement( "a" );
+
+ // Support: IE <=8 - 11, Edge 12 - 15
+ // IE throws exception on accessing the href property if url is malformed,
+ // e.g. http://example.com:80x/
+ try {
+ urlAnchor.href = s.url;
+
+ // Support: IE <=8 - 11 only
+ // Anchor's host property isn't correctly set when s.url is relative
+ urlAnchor.href = urlAnchor.href;
+ s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
+ urlAnchor.protocol + "//" + urlAnchor.host;
+ } catch ( e ) {
+
+ // If there is an error parsing the URL, assume it is crossDomain,
+ // it can be rejected by the transport if it is invalid
+ s.crossDomain = true;
+ }
+ }
+
+ // Convert data if not already a string
+ if ( s.data && s.processData && typeof s.data !== "string" ) {
+ s.data = jQuery.param( s.data, s.traditional );
+ }
+
+ // Apply prefilters
+ inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+ // If request was aborted inside a prefilter, stop there
+ if ( completed ) {
+ return jqXHR;
+ }
+
+ // We can fire global events as of now if asked to
+ // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
+ fireGlobals = jQuery.event && s.global;
+
+ // Watch for a new set of requests
+ if ( fireGlobals && jQuery.active++ === 0 ) {
+ jQuery.event.trigger( "ajaxStart" );
+ }
+
+ // Uppercase the type
+ s.type = s.type.toUpperCase();
+
+ // Determine if request has content
+ s.hasContent = !rnoContent.test( s.type );
+
+ // Save the URL in case we're toying with the If-Modified-Since
+ // and/or If-None-Match header later on
+ // Remove hash to simplify url manipulation
+ cacheURL = s.url.replace( rhash, "" );
+
+ // More options handling for requests with no content
+ if ( !s.hasContent ) {
+
+ // Remember the hash so we can put it back
+ uncached = s.url.slice( cacheURL.length );
+
+ // If data is available and should be processed, append data to url
+ if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
+ cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
+
+ // #9682: remove data so that it's not used in an eventual retry
+ delete s.data;
+ }
+
+ // Add or update anti-cache param if needed
+ if ( s.cache === false ) {
+ cacheURL = cacheURL.replace( rantiCache, "$1" );
+ uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
+ }
+
+ // Put hash and anti-cache on the URL that will be requested (gh-1732)
+ s.url = cacheURL + uncached;
+
+ // Change '%20' to '+' if this is encoded form body content (gh-2658)
+ } else if ( s.data && s.processData &&
+ ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
+ s.data = s.data.replace( r20, "+" );
+ }
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ if ( jQuery.lastModified[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+ }
+ if ( jQuery.etag[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+ }
+ }
+
+ // Set the correct header, if data is being sent
+ if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+ jqXHR.setRequestHeader( "Content-Type", s.contentType );
+ }
+
+ // Set the Accepts header for the server, depending on the dataType
+ jqXHR.setRequestHeader(
+ "Accept",
+ s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
+ s.accepts[ s.dataTypes[ 0 ] ] +
+ ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+ s.accepts[ "*" ]
+ );
+
+ // Check for headers option
+ for ( i in s.headers ) {
+ jqXHR.setRequestHeader( i, s.headers[ i ] );
+ }
+
+ // Allow custom headers/mimetypes and early abort
+ if ( s.beforeSend &&
+ ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
+
+ // Abort if not done already and return
+ return jqXHR.abort();
+ }
+
+ // Aborting is no longer a cancellation
+ strAbort = "abort";
+
+ // Install callbacks on deferreds
+ completeDeferred.add( s.complete );
+ jqXHR.done( s.success );
+ jqXHR.fail( s.error );
+
+ // Get transport
+ transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+ // If no transport, we auto-abort
+ if ( !transport ) {
+ done( -1, "No Transport" );
+ } else {
+ jqXHR.readyState = 1;
+
+ // Send global event
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+ }
+
+ // If request was aborted inside ajaxSend, stop there
+ if ( completed ) {
+ return jqXHR;
+ }
+
+ // Timeout
+ if ( s.async && s.timeout > 0 ) {
+ timeoutTimer = window.setTimeout( function() {
+ jqXHR.abort( "timeout" );
+ }, s.timeout );
+ }
+
+ try {
+ completed = false;
+ transport.send( requestHeaders, done );
+ } catch ( e ) {
+
+ // Rethrow post-completion exceptions
+ if ( completed ) {
+ throw e;
+ }
+
+ // Propagate others as results
+ done( -1, e );
+ }
+ }
+
+ // Callback for when everything is done
+ function done( status, nativeStatusText, responses, headers ) {
+ var isSuccess, success, error, response, modified,
+ statusText = nativeStatusText;
+
+ // Ignore repeat invocations
+ if ( completed ) {
+ return;
+ }
+
+ completed = true;
+
+ // Clear timeout if it exists
+ if ( timeoutTimer ) {
+ window.clearTimeout( timeoutTimer );
+ }
+
+ // Dereference transport for early garbage collection
+ // (no matter how long the jqXHR object will be used)
+ transport = undefined;
+
+ // Cache response headers
+ responseHeadersString = headers || "";
+
+ // Set readyState
+ jqXHR.readyState = status > 0 ? 4 : 0;
+
+ // Determine if successful
+ isSuccess = status >= 200 && status < 300 || status === 304;
+
+ // Get response data
+ if ( responses ) {
+ response = ajaxHandleResponses( s, jqXHR, responses );
+ }
+
+ // Convert no matter what (that way responseXXX fields are always set)
+ response = ajaxConvert( s, response, jqXHR, isSuccess );
+
+ // If successful, handle type chaining
+ if ( isSuccess ) {
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ modified = jqXHR.getResponseHeader( "Last-Modified" );
+ if ( modified ) {
+ jQuery.lastModified[ cacheURL ] = modified;
+ }
+ modified = jqXHR.getResponseHeader( "etag" );
+ if ( modified ) {
+ jQuery.etag[ cacheURL ] = modified;
+ }
+ }
+
+ // if no content
+ if ( status === 204 || s.type === "HEAD" ) {
+ statusText = "nocontent";
+
+ // if not modified
+ } else if ( status === 304 ) {
+ statusText = "notmodified";
+
+ // If we have data, let's convert it
+ } else {
+ statusText = response.state;
+ success = response.data;
+ error = response.error;
+ isSuccess = !error;
+ }
+ } else {
+
+ // Extract error from statusText and normalize for non-aborts
+ error = statusText;
+ if ( status || !statusText ) {
+ statusText = "error";
+ if ( status < 0 ) {
+ status = 0;
+ }
+ }
+ }
+
+ // Set data for the fake xhr object
+ jqXHR.status = status;
+ jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+ // Success/Error
+ if ( isSuccess ) {
+ deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+ } else {
+ deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+ }
+
+ // Status-dependent callbacks
+ jqXHR.statusCode( statusCode );
+ statusCode = undefined;
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+ [ jqXHR, s, isSuccess ? success : error ] );
+ }
+
+ // Complete
+ completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+
+ // Handle the global AJAX counter
+ if ( !( --jQuery.active ) ) {
+ jQuery.event.trigger( "ajaxStop" );
+ }
+ }
+ }
+
+ return jqXHR;
+ },
+
+ getJSON: function( url, data, callback ) {
+ return jQuery.get( url, data, callback, "json" );
+ },
+
+ getScript: function( url, callback ) {
+ return jQuery.get( url, undefined, callback, "script" );
+ }
+} );
+
+jQuery.each( [ "get", "post" ], function( i, method ) {
+ jQuery[ method ] = function( url, data, callback, type ) {
+
+ // Shift arguments if data argument was omitted
+ if ( isFunction( data ) ) {
+ type = type || callback;
+ callback = data;
+ data = undefined;
+ }
+
+ // The url can be an options object (which then must have .url)
+ return jQuery.ajax( jQuery.extend( {
+ url: url,
+ type: method,
+ dataType: type,
+ data: data,
+ success: callback
+ }, jQuery.isPlainObject( url ) && url ) );
+ };
+} );
+
+
+jQuery._evalUrl = function( url ) {
+ return jQuery.ajax( {
+ url: url,
+
+ // Make this explicit, since user can override this through ajaxSetup (#11264)
+ type: "GET",
+ dataType: "script",
+ cache: true,
+ async: false,
+ global: false,
+ "throws": true
+ } );
+};
+
+
+jQuery.fn.extend( {
+ wrapAll: function( html ) {
+ var wrap;
+
+ if ( this[ 0 ] ) {
+ if ( isFunction( html ) ) {
+ html = html.call( this[ 0 ] );
+ }
+
+ // The elements to wrap the target around
+ wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
+
+ if ( this[ 0 ].parentNode ) {
+ wrap.insertBefore( this[ 0 ] );
+ }
+
+ wrap.map( function() {
+ var elem = this;
+
+ while ( elem.firstElementChild ) {
+ elem = elem.firstElementChild;
+ }
+
+ return elem;
+ } ).append( this );
+ }
+
+ return this;
+ },
+
+ wrapInner: function( html ) {
+ if ( isFunction( html ) ) {
+ return this.each( function( i ) {
+ jQuery( this ).wrapInner( html.call( this, i ) );
+ } );
+ }
+
+ return this.each( function() {
+ var self = jQuery( this ),
+ contents = self.contents();
+
+ if ( contents.length ) {
+ contents.wrapAll( html );
+
+ } else {
+ self.append( html );
+ }
+ } );
+ },
+
+ wrap: function( html ) {
+ var htmlIsFunction = isFunction( html );
+
+ return this.each( function( i ) {
+ jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
+ } );
+ },
+
+ unwrap: function( selector ) {
+ this.parent( selector ).not( "body" ).each( function() {
+ jQuery( this ).replaceWith( this.childNodes );
+ } );
+ return this;
+ }
+} );
+
+
+jQuery.expr.pseudos.hidden = function( elem ) {
+ return !jQuery.expr.pseudos.visible( elem );
+};
+jQuery.expr.pseudos.visible = function( elem ) {
+ return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
+};
+
+
+
+
+jQuery.ajaxSettings.xhr = function() {
+ try {
+ return new window.XMLHttpRequest();
+ } catch ( e ) {}
+};
+
+var xhrSuccessStatus = {
+
+ // File protocol always yields status code 0, assume 200
+ 0: 200,
+
+ // Support: IE <=9 only
+ // #1450: sometimes IE returns 1223 when it should be 204
+ 1223: 204
+ },
+ xhrSupported = jQuery.ajaxSettings.xhr();
+
+support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+support.ajax = xhrSupported = !!xhrSupported;
+
+jQuery.ajaxTransport( function( options ) {
+ var callback, errorCallback;
+
+ // Cross domain only allowed if supported through XMLHttpRequest
+ if ( support.cors || xhrSupported && !options.crossDomain ) {
+ return {
+ send: function( headers, complete ) {
+ var i,
+ xhr = options.xhr();
+
+ xhr.open(
+ options.type,
+ options.url,
+ options.async,
+ options.username,
+ options.password
+ );
+
+ // Apply custom fields if provided
+ if ( options.xhrFields ) {
+ for ( i in options.xhrFields ) {
+ xhr[ i ] = options.xhrFields[ i ];
+ }
+ }
+
+ // Override mime type if needed
+ if ( options.mimeType && xhr.overrideMimeType ) {
+ xhr.overrideMimeType( options.mimeType );
+ }
+
+ // X-Requested-With header
+ // For cross-domain requests, seeing as conditions for a preflight are
+ // akin to a jigsaw puzzle, we simply never set it to be sure.
+ // (it can always be set on a per-request basis or even using ajaxSetup)
+ // For same-domain requests, won't change header if already provided.
+ if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
+ headers[ "X-Requested-With" ] = "XMLHttpRequest";
+ }
+
+ // Set headers
+ for ( i in headers ) {
+ xhr.setRequestHeader( i, headers[ i ] );
+ }
+
+ // Callback
+ callback = function( type ) {
+ return function() {
+ if ( callback ) {
+ callback = errorCallback = xhr.onload =
+ xhr.onerror = xhr.onabort = xhr.ontimeout =
+ xhr.onreadystatechange = null;
+
+ if ( type === "abort" ) {
+ xhr.abort();
+ } else if ( type === "error" ) {
+
+ // Support: IE <=9 only
+ // On a manual native abort, IE9 throws
+ // errors on any property access that is not readyState
+ if ( typeof xhr.status !== "number" ) {
+ complete( 0, "error" );
+ } else {
+ complete(
+
+ // File: protocol always yields status 0; see #8605, #14207
+ xhr.status,
+ xhr.statusText
+ );
+ }
+ } else {
+ complete(
+ xhrSuccessStatus[ xhr.status ] || xhr.status,
+ xhr.statusText,
+
+ // Support: IE <=9 only
+ // IE9 has no XHR2 but throws on binary (trac-11426)
+ // For XHR2 non-text, let the caller handle it (gh-2498)
+ ( xhr.responseType || "text" ) !== "text" ||
+ typeof xhr.responseText !== "string" ?
+ { binary: xhr.response } :
+ { text: xhr.responseText },
+ xhr.getAllResponseHeaders()
+ );
+ }
+ }
+ };
+ };
+
+ // Listen to events
+ xhr.onload = callback();
+ errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );
+
+ // Support: IE 9 only
+ // Use onreadystatechange to replace onabort
+ // to handle uncaught aborts
+ if ( xhr.onabort !== undefined ) {
+ xhr.onabort = errorCallback;
+ } else {
+ xhr.onreadystatechange = function() {
+
+ // Check readyState before timeout as it changes
+ if ( xhr.readyState === 4 ) {
+
+ // Allow onerror to be called first,
+ // but that will not handle a native abort
+ // Also, save errorCallback to a variable
+ // as xhr.onerror cannot be accessed
+ window.setTimeout( function() {
+ if ( callback ) {
+ errorCallback();
+ }
+ } );
+ }
+ };
+ }
+
+ // Create the abort callback
+ callback = callback( "abort" );
+
+ try {
+
+ // Do send the request (this may raise an exception)
+ xhr.send( options.hasContent && options.data || null );
+ } catch ( e ) {
+
+ // #14683: Only rethrow if this hasn't been notified as an error yet
+ if ( callback ) {
+ throw e;
+ }
+ }
+ },
+
+ abort: function() {
+ if ( callback ) {
+ callback();
+ }
+ }
+ };
+ }
+} );
+
+
+
+
+// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
+jQuery.ajaxPrefilter( function( s ) {
+ if ( s.crossDomain ) {
+ s.contents.script = false;
+ }
+} );
+
+// Install script dataType
+jQuery.ajaxSetup( {
+ accepts: {
+ script: "text/javascript, application/javascript, " +
+ "application/ecmascript, application/x-ecmascript"
+ },
+ contents: {
+ script: /\b(?:java|ecma)script\b/
+ },
+ converters: {
+ "text script": function( text ) {
+ jQuery.globalEval( text );
+ return text;
+ }
+ }
+} );
+
+// Handle cache's special case and crossDomain
+jQuery.ajaxPrefilter( "script", function( s ) {
+ if ( s.cache === undefined ) {
+ s.cache = false;
+ }
+ if ( s.crossDomain ) {
+ s.type = "GET";
+ }
+} );
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function( s ) {
+
+ // This transport only deals with cross domain requests
+ if ( s.crossDomain ) {
+ var script, callback;
+ return {
+ send: function( _, complete ) {
+ script = jQuery( "<script>" ).prop( {
+ charset: s.scriptCharset,
+ src: s.url
+ } ).on(
+ "load error",
+ callback = function( evt ) {
+ script.remove();
+ callback = null;
+ if ( evt ) {
+ complete( evt.type === "error" ? 404 : 200, evt.type );
+ }
+ }
+ );
+
+ // Use native DOM manipulation to avoid our domManip AJAX trickery
+ document.head.appendChild( script[ 0 ] );
+ },
+ abort: function() {
+ if ( callback ) {
+ callback();
+ }
+ }
+ };
+ }
+} );
+
+
+
+
+var oldCallbacks = [],
+ rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup( {
+ jsonp: "callback",
+ jsonpCallback: function() {
+ var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
+ this[ callback ] = true;
+ return callback;
+ }
+} );
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+ var callbackName, overwritten, responseContainer,
+ jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+ "url" :
+ typeof s.data === "string" &&
+ ( s.contentType || "" )
+ .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
+ rjsonp.test( s.data ) && "data"
+ );
+
+ // Handle iff the expected data type is "jsonp" or we have a parameter to set
+ if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+ // Get callback name, remembering preexisting value associated with it
+ callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
+ s.jsonpCallback() :
+ s.jsonpCallback;
+
+ // Insert callback into url or form data
+ if ( jsonProp ) {
+ s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+ } else if ( s.jsonp !== false ) {
+ s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+ }
+
+ // Use data converter to retrieve json after script execution
+ s.converters[ "script json" ] = function() {
+ if ( !responseContainer ) {
+ jQuery.error( callbackName + " was not called" );
+ }
+ return responseContainer[ 0 ];
+ };
+
+ // Force json dataType
+ s.dataTypes[ 0 ] = "json";
+
+ // Install callback
+ overwritten = window[ callbackName ];
+ window[ callbackName ] = function() {
+ responseContainer = arguments;
+ };
+
+ // Clean-up function (fires after converters)
+ jqXHR.always( function() {
+
+ // If previous value didn't exist - remove it
+ if ( overwritten === undefined ) {
+ jQuery( window ).removeProp( callbackName );
+
+ // Otherwise restore preexisting value
+ } else {
+ window[ callbackName ] = overwritten;
+ }
+
+ // Save back as free
+ if ( s[ callbackName ] ) {
+
+ // Make sure that re-using the options doesn't screw things around
+ s.jsonpCallback = originalSettings.jsonpCallback;
+
+ // Save the callback name for future use
+ oldCallbacks.push( callbackName );
+ }
+
+ // Call if it was a function and we have a response
+ if ( responseContainer && isFunction( overwritten ) ) {
+ overwritten( responseContainer[ 0 ] );
+ }
+
+ responseContainer = overwritten = undefined;
+ } );
+
+ // Delegate to script
+ return "script";
+ }
+} );
+
+
+
+
+// Support: Safari 8 only
+// In Safari 8 documents created via document.implementation.createHTMLDocument
+// collapse sibling forms: the second one becomes a child of the first one.
+// Because of that, this security measure has to be disabled in Safari 8.
+// https://bugs.webkit.org/show_bug.cgi?id=137337
+support.createHTMLDocument = ( function() {
+ var body = document.implementation.createHTMLDocument( "" ).body;
+ body.innerHTML = "<form></form><form></form>";
+ return body.childNodes.length === 2;
+} )();
+
+
+// Argument "data" should be string of html
+// context (optional): If specified, the fragment will be created in this context,
+// defaults to document
+// keepScripts (optional): If true, will include scripts passed in the html string
+jQuery.parseHTML = function( data, context, keepScripts ) {
+ if ( typeof data !== "string" ) {
+ return [];
+ }
+ if ( typeof context === "boolean" ) {
+ keepScripts = context;
+ context = false;
+ }
+
+ var base, parsed, scripts;
+
+ if ( !context ) {
+
+ // Stop scripts or inline event handlers from being executed immediately
+ // by using document.implementation
+ if ( support.createHTMLDocument ) {
+ context = document.implementation.createHTMLDocument( "" );
+
+ // Set the base href for the created document
+ // so any parsed elements with URLs
+ // are based on the document's URL (gh-2965)
+ base = context.createElement( "base" );
+ base.href = document.location.href;
+ context.head.appendChild( base );
+ } else {
+ context = document;
+ }
+ }
+
+ parsed = rsingleTag.exec( data );
+ scripts = !keepScripts && [];
+
+ // Single tag
+ if ( parsed ) {
+ return [ context.createElement( parsed[ 1 ] ) ];
+ }
+
+ parsed = buildFragment( [ data ], context, scripts );
+
+ if ( scripts && scripts.length ) {
+ jQuery( scripts ).remove();
+ }
+
+ return jQuery.merge( [], parsed.childNodes );
+};
+
+
+/**
+ * Load a url into a page
+ */
+jQuery.fn.load = function( url, params, callback ) {
+ var selector, type, response,
+ self = this,
+ off = url.indexOf( " " );
+
+ if ( off > -1 ) {
+ selector = stripAndCollapse( url.slice( off ) );
+ url = url.slice( 0, off );
+ }
+
+ // If it's a function
+ if ( isFunction( params ) ) {
+
+ // We assume that it's the callback
+ callback = params;
+ params = undefined;
+
+ // Otherwise, build a param string
+ } else if ( params && typeof params === "object" ) {
+ type = "POST";
+ }
+
+ // If we have elements to modify, make the request
+ if ( self.length > 0 ) {
+ jQuery.ajax( {
+ url: url,
+
+ // If "type" variable is undefined, then "GET" method will be used.
+ // Make value of this field explicit since
+ // user can override it through ajaxSetup method
+ type: type || "GET",
+ dataType: "html",
+ data: params
+ } ).done( function( responseText ) {
+
+ // Save response for use in complete callback
+ response = arguments;
+
+ self.html( selector ?
+
+ // If a selector was specified, locate the right elements in a dummy div
+ // Exclude scripts to avoid IE 'Permission Denied' errors
+ jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+ // Otherwise use the full result
+ responseText );
+
+ // If the request succeeds, this function gets "data", "status", "jqXHR"
+ // but they are ignored because response was set above.
+ // If it fails, this function gets "jqXHR", "status", "error"
+ } ).always( callback && function( jqXHR, status ) {
+ self.each( function() {
+ callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
+ } );
+ } );
+ }
+
+ return this;
+};
+
+
+
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( [
+ "ajaxStart",
+ "ajaxStop",
+ "ajaxComplete",
+ "ajaxError",
+ "ajaxSuccess",
+ "ajaxSend"
+], function( i, type ) {
+ jQuery.fn[ type ] = function( fn ) {
+ return this.on( type, fn );
+ };
+} );
+
+
+
+
+jQuery.expr.pseudos.animated = function( elem ) {
+ return jQuery.grep( jQuery.timers, function( fn ) {
+ return elem === fn.elem;
+ } ).length;
+};
+
+
+
+
+jQuery.offset = {
+ setOffset: function( elem, options, i ) {
+ var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
+ position = jQuery.css( elem, "position" ),
+ curElem = jQuery( elem ),
+ props = {};
+
+ // Set position first, in-case top/left are set even on static elem
+ if ( position === "static" ) {
+ elem.style.position = "relative";
+ }
+
+ curOffset = curElem.offset();
+ curCSSTop = jQuery.css( elem, "top" );
+ curCSSLeft = jQuery.css( elem, "left" );
+ calculatePosition = ( position === "absolute" || position === "fixed" ) &&
+ ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
+
+ // Need to be able to calculate position if either
+ // top or left is auto and position is either absolute or fixed
+ if ( calculatePosition ) {
+ curPosition = curElem.position();
+ curTop = curPosition.top;
+ curLeft = curPosition.left;
+
+ } else {
+ curTop = parseFloat( curCSSTop ) || 0;
+ curLeft = parseFloat( curCSSLeft ) || 0;
+ }
+
+ if ( isFunction( options ) ) {
+
+ // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
+ options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
+ }
+
+ if ( options.top != null ) {
+ props.top = ( options.top - curOffset.top ) + curTop;
+ }
+ if ( options.left != null ) {
+ props.left = ( options.left - curOffset.left ) + curLeft;
+ }
+
+ if ( "using" in options ) {
+ options.using.call( elem, props );
+
+ } else {
+ curElem.css( props );
+ }
+ }
+};
+
+jQuery.fn.extend( {
+
+ // offset() relates an element's border box to the document origin
+ offset: function( options ) {
+
+ // Preserve chaining for setter
+ if ( arguments.length ) {
+ return options === undefined ?
+ this :
+ this.each( function( i ) {
+ jQuery.offset.setOffset( this, options, i );
+ } );
+ }
+
+ var rect, win,
+ elem = this[ 0 ];
+
+ if ( !elem ) {
+ return;
+ }
+
+ // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
+ // Support: IE <=11 only
+ // Running getBoundingClientRect on a
+ // disconnected node in IE throws an error
+ if ( !elem.getClientRects().length ) {
+ return { top: 0, left: 0 };
+ }
+
+ // Get document-relative position by adding viewport scroll to viewport-relative gBCR
+ rect = elem.getBoundingClientRect();
+ win = elem.ownerDocument.defaultView;
+ return {
+ top: rect.top + win.pageYOffset,
+ left: rect.left + win.pageXOffset
+ };
+ },
+
+ // position() relates an element's margin box to its offset parent's padding box
+ // This corresponds to the behavior of CSS absolute positioning
+ position: function() {
+ if ( !this[ 0 ] ) {
+ return;
+ }
+
+ var offsetParent, offset, doc,
+ elem = this[ 0 ],
+ parentOffset = { top: 0, left: 0 };
+
+ // position:fixed elements are offset from the viewport, which itself always has zero offset
+ if ( jQuery.css( elem, "position" ) === "fixed" ) {
+
+ // Assume position:fixed implies availability of getBoundingClientRect
+ offset = elem.getBoundingClientRect();
+
+ } else {
+ offset = this.offset();
+
+ // Account for the *real* offset parent, which can be the document or its root element
+ // when a statically positioned element is identified
+ doc = elem.ownerDocument;
+ offsetParent = elem.offsetParent || doc.documentElement;
+ while ( offsetParent &&
+ ( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
+ jQuery.css( offsetParent, "position" ) === "static" ) {
+
+ offsetParent = offsetParent.parentNode;
+ }
+ if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {
+
+ // Incorporate borders into its offset, since they are outside its content origin
+ parentOffset = jQuery( offsetParent ).offset();
+ parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
+ parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
+ }
+ }
+
+ // Subtract parent offsets and element margins
+ return {
+ top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+ left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
+ };
+ },
+
+ // This method will return documentElement in the following cases:
+ // 1) For the element inside the iframe without offsetParent, this method will return
+ // documentElement of the parent window
+ // 2) For the hidden or detached element
+ // 3) For body or html element, i.e. in case of the html node - it will return itself
+ //
+ // but those exceptions were never presented as a real life use-cases
+ // and might be considered as more preferable results.
+ //
+ // This logic, however, is not guaranteed and can change at any point in the future
+ offsetParent: function() {
+ return this.map( function() {
+ var offsetParent = this.offsetParent;
+
+ while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
+ offsetParent = offsetParent.offsetParent;
+ }
+
+ return offsetParent || documentElement;
+ } );
+ }
+} );
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
+ var top = "pageYOffset" === prop;
+
+ jQuery.fn[ method ] = function( val ) {
+ return access( this, function( elem, method, val ) {
+
+ // Coalesce documents and windows
+ var win;
+ if ( isWindow( elem ) ) {
+ win = elem;
+ } else if ( elem.nodeType === 9 ) {
+ win = elem.defaultView;
+ }
+
+ if ( val === undefined ) {
+ return win ? win[ prop ] : elem[ method ];
+ }
+
+ if ( win ) {
+ win.scrollTo(
+ !top ? val : win.pageXOffset,
+ top ? val : win.pageYOffset
+ );
+
+ } else {
+ elem[ method ] = val;
+ }
+ }, method, val, arguments.length );
+ };
+} );
+
+// Support: Safari <=7 - 9.1, Chrome <=37 - 49
+// Add the top/left cssHooks using jQuery.fn.position
+// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
+// getComputedStyle returns percent when specified for top/left/bottom/right;
+// rather than make the css module depend on the offset module, just check for it here
+jQuery.each( [ "top", "left" ], function( i, prop ) {
+ jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
+ function( elem, computed ) {
+ if ( computed ) {
+ computed = curCSS( elem, prop );
+
+ // If curCSS returns percentage, fallback to offset
+ return rnumnonpx.test( computed ) ?
+ jQuery( elem ).position()[ prop ] + "px" :
+ computed;
+ }
+ }
+ );
+} );
+
+
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+ jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
+ function( defaultExtra, funcName ) {
+
+ // Margin is only for outerHeight, outerWidth
+ jQuery.fn[ funcName ] = function( margin, value ) {
+ var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+ extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+ return access( this, function( elem, type, value ) {
+ var doc;
+
+ if ( isWindow( elem ) ) {
+
+ // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
+ return funcName.indexOf( "outer" ) === 0 ?
+ elem[ "inner" + name ] :
+ elem.document.documentElement[ "client" + name ];
+ }
+
+ // Get document width or height
+ if ( elem.nodeType === 9 ) {
+ doc = elem.documentElement;
+
+ // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
+ // whichever is greatest
+ return Math.max(
+ elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+ elem.body[ "offset" + name ], doc[ "offset" + name ],
+ doc[ "client" + name ]
+ );
+ }
+
+ return value === undefined ?
+
+ // Get width or height on the element, requesting but not forcing parseFloat
+ jQuery.css( elem, type, extra ) :
+
+ // Set width or height on the element
+ jQuery.style( elem, type, value, extra );
+ }, type, chainable ? margin : undefined, chainable );
+ };
+ } );
+} );
+
+
+jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
+ "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+ "change select submit keydown keypress keyup contextmenu" ).split( " " ),
+ function( i, name ) {
+
+ // Handle event binding
+ jQuery.fn[ name ] = function( data, fn ) {
+ return arguments.length > 0 ?
+ this.on( name, null, data, fn ) :
+ this.trigger( name );
+ };
+} );
+
+jQuery.fn.extend( {
+ hover: function( fnOver, fnOut ) {
+ return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+ }
+} );
+
+
+
+
+jQuery.fn.extend( {
+
+ bind: function( types, data, fn ) {
+ return this.on( types, null, data, fn );
+ },
+ unbind: function( types, fn ) {
+ return this.off( types, null, fn );
+ },
+
+ delegate: function( selector, types, data, fn ) {
+ return this.on( types, selector, data, fn );
+ },
+ undelegate: function( selector, types, fn ) {
+
+ // ( namespace ) or ( selector, types [, fn] )
+ return arguments.length === 1 ?
+ this.off( selector, "**" ) :
+ this.off( types, selector || "**", fn );
+ }
+} );
+
+// Bind a function to a context, optionally partially applying any
+// arguments.
+// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
+// However, it is not slated for removal any time soon
+jQuery.proxy = function( fn, context ) {
+ var tmp, args, proxy;
+
+ if ( typeof context === "string" ) {
+ tmp = fn[ context ];
+ context = fn;
+ fn = tmp;
+ }
+
+ // Quick check to determine if target is callable, in the spec
+ // this throws a TypeError, but we will just return undefined.
+ if ( !isFunction( fn ) ) {
+ return undefined;
+ }
+
+ // Simulated bind
+ args = slice.call( arguments, 2 );
+ proxy = function() {
+ return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
+ };
+
+ // Set the guid of unique handler to the same of original handler, so it can be removed
+ proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+ return proxy;
+};
+
+jQuery.holdReady = function( hold ) {
+ if ( hold ) {
+ jQuery.readyWait++;
+ } else {
+ jQuery.ready( true );
+ }
+};
+jQuery.isArray = Array.isArray;
+jQuery.parseJSON = JSON.parse;
+jQuery.nodeName = nodeName;
+jQuery.isFunction = isFunction;
+jQuery.isWindow = isWindow;
+jQuery.camelCase = camelCase;
+jQuery.type = toType;
+
+jQuery.now = Date.now;
+
+jQuery.isNumeric = function( obj ) {
+
+ // As of jQuery 3.0, isNumeric is limited to
+ // strings and numbers (primitives or objects)
+ // that can be coerced to finite numbers (gh-2662)
+ var type = jQuery.type( obj );
+ return ( type === "number" || type === "string" ) &&
+
+ // parseFloat NaNs numeric-cast false positives ("")
+ // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
+ // subtraction forces infinities to NaN
+ !isNaN( obj - parseFloat( obj ) );
+};
+
+
+
+
+// Register as a named AMD module, since jQuery can be concatenated with other
+// files that may use define, but not via a proper concatenation script that
+// understands anonymous AMD modules. A named AMD is safest and most robust
+// way to register. Lowercase jquery is used because AMD module names are
+// derived from file names, and jQuery is normally delivered in a lowercase
+// file name. Do this after creating the global so that if an AMD module wants
+// to call noConflict to hide this version of jQuery, it will work.
+
+// Note that for maximum portability, libraries that are not jQuery should
+// declare themselves as anonymous modules, and avoid setting a global if an
+// AMD loader is present. jQuery is a special case. For more information, see
+// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
+
+if ( typeof define === "function" && define.amd ) {
+ define( "jquery", [], function() {
+ return jQuery;
+ } );
+}
+
+
+
+
+var
+
+ // Map over jQuery in case of overwrite
+ _jQuery = window.jQuery,
+
+ // Map over the $ in case of overwrite
+ _$ = window.$;
+
+jQuery.noConflict = function( deep ) {
+ if ( window.$ === jQuery ) {
+ window.$ = _$;
+ }
+
+ if ( deep && window.jQuery === jQuery ) {
+ window.jQuery = _jQuery;
+ }
+
+ return jQuery;
+};
+
+// Expose jQuery and $ identifiers, even in AMD
+// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
+// and CommonJS for browser emulators (#13566)
+if ( !noGlobal ) {
+ window.jQuery = window.$ = jQuery;
+}
+
+
+
+
+return jQuery;
+} );
diff --git a/assets/netcut/lib/jquery/jquery-3.3.1.min.js b/assets/netcut/lib/jquery/jquery-3.3.1.min.js
new file mode 100644
index 0000000..4d9b3a2
--- /dev/null
+++ b/assets/netcut/lib/jquery/jquery-3.3.1.min.js
@@ -0,0 +1,2 @@
+/*! jQuery v3.3.1 | (c) JS Foundation and other contributors | jquery.org/license */
+!function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):function(e){if(!e.document)throw new Error("jQuery requires a window with a document");return t(e)}:t(e)}("undefined"!=typeof window?window:this,function(e,t){"use strict";var n=[],r=e.document,i=Object.getPrototypeOf,o=n.slice,a=n.concat,s=n.push,u=n.indexOf,l={},c=l.toString,f=l.hasOwnProperty,p=f.toString,d=p.call(Object),h={},g=function e(t){return"function"==typeof t&&"number"!=typeof t.nodeType},y=function e(t){return null!=t&&t===t.window},v={type:!0,src:!0,noModule:!0};function m(e,t,n){var i,o=(t=t||r).createElement("script");if(o.text=e,n)for(i in v)n[i]&&(o[i]=n[i]);t.head.appendChild(o).parentNode.removeChild(o)}function x(e){return null==e?e+"":"object"==typeof e||"function"==typeof e?l[c.call(e)]||"object":typeof e}var b="3.3.1",w=function(e,t){return new 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\ No newline at end of file
diff --git a/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.js b/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.js
new file mode 100644
index 0000000..90d2452
--- /dev/null
+++ b/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.js
@@ -0,0 +1,399 @@
+/*
+ * Video.js Hotkeys
+ * https://github.com/ctd1500/videojs-hotkeys
+ *
+ * Copyright (c) 2015 Chris Dougherty
+ * Licensed under the Apache-2.0 license.
+ */
+
+;(function(root, factory) {
+ if (typeof window !== 'undefined' && window.videojs) {
+ factory(window.videojs);
+ } else if (typeof define === 'function' && define.amd) {
+ define('videojs-hotkeys', ['video.js'], function (module) {
+ return factory(module.default || module);
+ });
+ } else if (typeof module !== 'undefined' && module.exports) {
+ module.exports = factory(require('video.js'));
+ }
+}(this, function (videojs) {
+ "use strict";
+ if (typeof window !== 'undefined') {
+ window['videojs_hotkeys'] = { version: "0.2.22" };
+ }
+
+ var hotkeys = function(options) {
+ var player = this;
+ var pEl = player.el();
+ var doc = document;
+ var def_options = {
+ volumeStep: 0.1,
+ seekStep: 5,
+ enableMute: true,
+ enableVolumeScroll: true,
+ enableFullscreen: true,
+ enableNumbers: true,
+ enableJogStyle: false,
+ alwaysCaptureHotkeys: false,
+ enableModifiersForNumbers: true,
+ enableInactiveFocus: true,
+ skipInitialFocus: false,
+ playPauseKey: playPauseKey,
+ rewindKey: rewindKey,
+ forwardKey: forwardKey,
+ volumeUpKey: volumeUpKey,
+ volumeDownKey: volumeDownKey,
+ muteKey: muteKey,
+ fullscreenKey: fullscreenKey,
+ customKeys: {}
+ };
+
+ var cPlay = 1,
+ cRewind = 2,
+ cForward = 3,
+ cVolumeUp = 4,
+ cVolumeDown = 5,
+ cMute = 6,
+ cFullscreen = 7;
+
+ // Use built-in merge function from Video.js v5.0+ or v4.4.0+
+ var mergeOptions = videojs.mergeOptions || videojs.util.mergeOptions;
+ options = mergeOptions(def_options, options || {});
+
+ var volumeStep = options.volumeStep,
+ seekStep = options.seekStep,
+ enableMute = options.enableMute,
+ enableVolumeScroll = options.enableVolumeScroll,
+ enableFull = options.enableFullscreen,
+ enableNumbers = options.enableNumbers,
+ enableJogStyle = options.enableJogStyle,
+ alwaysCaptureHotkeys = options.alwaysCaptureHotkeys,
+ enableModifiersForNumbers = options.enableModifiersForNumbers,
+ enableInactiveFocus = options.enableInactiveFocus,
+ skipInitialFocus = options.skipInitialFocus;
+
+ // Set default player tabindex to handle keydown and doubleclick events
+ if (!pEl.hasAttribute('tabIndex')) {
+ pEl.setAttribute('tabIndex', '-1');
+ }
+
+ // Remove player outline to fix video performance issue
+ pEl.style.outline = "none";
+
+ if (alwaysCaptureHotkeys || !player.autoplay()) {
+ if (!skipInitialFocus) {
+ player.one('play', function() {
+ pEl.focus(); // Fixes the .vjs-big-play-button handing focus back to body instead of the player
+ });
+ }
+ }
+
+ if (enableInactiveFocus) {
+ player.on('userinactive', function() {
+ // When the control bar fades, re-apply focus to the player if last focus was a control button
+ var cancelFocusingPlayer = function() {
+ clearTimeout(focusingPlayerTimeout);
+ };
+ var focusingPlayerTimeout = setTimeout(function() {
+ player.off('useractive', cancelFocusingPlayer);
+ var activeElement = doc.activeElement;
+ var controlBar = pEl.querySelector('.vjs-control-bar');
+ if (activeElement && activeElement.parentElement == controlBar) {
+ pEl.focus();
+ }
+ }, 10);
+
+ player.one('useractive', cancelFocusingPlayer);
+ });
+ }
+
+ player.on('play', function() {
+ // Fix allowing the YouTube plugin to have hotkey support.
+ var ifblocker = pEl.querySelector('.iframeblocker');
+ if (ifblocker && ifblocker.style.display === '') {
+ ifblocker.style.display = "block";
+ ifblocker.style.bottom = "39px";
+ }
+ });
+
+ var keyDown = function keyDown(event) {
+ var ewhich = event.which, wasPlaying, seekTime;
+ var ePreventDefault = event.preventDefault;
+ var duration = player.duration();
+ // When controls are disabled, hotkeys will be disabled as well
+ if (player.controls()) {
+
+ // Don't catch keys if any control buttons are focused, unless alwaysCaptureHotkeys is true
+ var activeEl = doc.activeElement;
+ if (alwaysCaptureHotkeys ||
+ activeEl == pEl ||
+ activeEl == pEl.querySelector('.vjs-tech') ||
+ activeEl == pEl.querySelector('.vjs-control-bar') ||
+ activeEl == pEl.querySelector('.iframeblocker')) {
+
+ switch (checkKeys(event, player)) {
+ // Spacebar toggles play/pause
+ case cPlay:
+ ePreventDefault();
+ if (alwaysCaptureHotkeys) {
+ // Prevent control activation with space
+ event.stopPropagation();
+ }
+
+ if (player.paused()) {
+ player.play();
+ } else {
+ player.pause();
+ }
+ break;
+
+ // Seeking with the left/right arrow keys
+ case cRewind: // Seek Backward
+ wasPlaying = !player.paused();
+ ePreventDefault();
+ if (wasPlaying) {
+ player.pause();
+ }
+ seekTime = player.currentTime() - seekStepD(event);
+ // The flash player tech will allow you to seek into negative
+ // numbers and break the seekbar, so try to prevent that.
+ if (seekTime <= 0) {
+ seekTime = 0;
+ }
+ player.currentTime(seekTime);
+ if (wasPlaying) {
+ player.play();
+ }
+ break;
+ case cForward: // Seek Forward
+ wasPlaying = !player.paused();
+ ePreventDefault();
+ if (wasPlaying) {
+ player.pause();
+ }
+ seekTime = player.currentTime() + seekStepD(event);
+ // Fixes the player not sending the end event if you
+ // try to seek past the duration on the seekbar.
+ if (seekTime >= duration) {
+ seekTime = wasPlaying ? duration - .001 : duration;
+ }
+ player.currentTime(seekTime);
+ if (wasPlaying) {
+ player.play();
+ }
+ break;
+
+ // Volume control with the up/down arrow keys
+ case cVolumeDown:
+ ePreventDefault();
+ if (!enableJogStyle) {
+ player.volume(player.volume() - volumeStep);
+ } else {
+ seekTime = player.currentTime() - 1;
+ if (player.currentTime() <= 1) {
+ seekTime = 0;
+ }
+ player.currentTime(seekTime);
+ }
+ break;
+ case cVolumeUp:
+ ePreventDefault();
+ if (!enableJogStyle) {
+ player.volume(player.volume() + volumeStep);
+ } else {
+ seekTime = player.currentTime() + 1;
+ if (seekTime >= duration) {
+ seekTime = duration;
+ }
+ player.currentTime(seekTime);
+ }
+ break;
+
+ // Toggle Mute with the M key
+ case cMute:
+ if (enableMute) {
+ player.muted(!player.muted());
+ }
+ break;
+
+ // Toggle Fullscreen with the F key
+ case cFullscreen:
+ if (enableFull) {
+ if (player.isFullscreen()) {
+ player.exitFullscreen();
+ } else {
+ player.requestFullscreen();
+ }
+ }
+ break;
+
+ default:
+ // Number keys from 0-9 skip to a percentage of the video. 0 is 0% and 9 is 90%
+ if ((ewhich > 47 && ewhich < 59) || (ewhich > 95 && ewhich < 106)) {
+ // Do not handle if enableModifiersForNumbers set to false and keys are Ctrl, Cmd or Alt
+ if (enableModifiersForNumbers || !(event.metaKey || event.ctrlKey || event.altKey)) {
+ if (enableNumbers) {
+ var sub = 48;
+ if (ewhich > 95) {
+ sub = 96;
+ }
+ var number = ewhich - sub;
+ ePreventDefault();
+ player.currentTime(player.duration() * number * 0.1);
+ }
+ }
+ }
+
+ // Handle any custom hotkeys
+ for (var customKey in options.customKeys) {
+ var customHotkey = options.customKeys[customKey];
+ // Check for well formed custom keys
+ if (customHotkey && customHotkey.key && customHotkey.handler) {
+ // Check if the custom key's condition matches
+ if (customHotkey.key(event)) {
+ ePreventDefault();
+ customHotkey.handler(player, options, event);
+ }
+ }
+ }
+ }
+ }
+ }
+ };
+
+ var doubleClick = function doubleClick(event) {
+ // When controls are disabled, hotkeys will be disabled as well
+ if (player.controls()) {
+
+ // Don't catch clicks if any control buttons are focused
+ var activeEl = event.relatedTarget || event.toElement || doc.activeElement;
+ if (activeEl == pEl ||
+ activeEl == pEl.querySelector('.vjs-tech') ||
+ activeEl == pEl.querySelector('.iframeblocker')) {
+
+ if (enableFull) {
+ if (player.isFullscreen()) {
+ player.exitFullscreen();
+ } else {
+ player.requestFullscreen();
+ }
+ }
+ }
+ }
+ };
+
+ var mouseScroll = function mouseScroll(event) {
+ // When controls are disabled, hotkeys will be disabled as well
+ if (player.controls()) {
+ var activeEl = doc.activeElement;
+ if (alwaysCaptureHotkeys ||
+ activeEl == pEl ||
+ activeEl == pEl.querySelector('.vjs-tech') ||
+ activeEl == pEl.querySelector('.iframeblocker') ||
+ activeEl == pEl.querySelector('.vjs-control-bar')) {
+
+ if (enableVolumeScroll) {
+ event = window.event || event;
+ var delta = Math.max(-1, Math.min(1, (event.wheelDelta || -event.detail)));
+ event.preventDefault();
+
+ if (delta == 1) {
+ player.volume(player.volume() + volumeStep);
+ } else if (delta == -1) {
+ player.volume(player.volume() - volumeStep);
+ }
+ }
+ }
+ }
+ };
+
+ var checkKeys = function checkKeys(e, player) {
+ // Allow some modularity in defining custom hotkeys
+
+ // Play/Pause check
+ if (options.playPauseKey(e, player)) {
+ return cPlay;
+ }
+
+ // Seek Backward check
+ if (options.rewindKey(e, player)) {
+ return cRewind;
+ }
+
+ // Seek Forward check
+ if (options.forwardKey(e, player)) {
+ return cForward;
+ }
+
+ // Volume Up check
+ if (options.volumeUpKey(e, player)) {
+ return cVolumeUp;
+ }
+
+ // Volume Down check
+ if (options.volumeDownKey(e, player)) {
+ return cVolumeDown;
+ }
+
+ // Mute check
+ if (options.muteKey(e, player)) {
+ return cMute;
+ }
+
+ // Fullscreen check
+ if (options.fullscreenKey(e, player)) {
+ return cFullscreen;
+ }
+ };
+
+ function playPauseKey(e) {
+ // Space bar or MediaPlayPause
+ return (e.which === 32 || e.which === 179);
+ }
+
+ function rewindKey(e) {
+ // Left Arrow or MediaRewind
+ return (e.which === 37 || e.which === 177);
+ }
+
+ function forwardKey(e) {
+ // Right Arrow or MediaForward
+ return (e.which === 39 || e.which === 176);
+ }
+
+ function volumeUpKey(e) {
+ // Up Arrow
+ return (e.which === 38);
+ }
+
+ function volumeDownKey(e) {
+ // Down Arrow
+ return (e.which === 40);
+ }
+
+ function muteKey(e) {
+ // M key
+ return (e.which === 77);
+ }
+
+ function fullscreenKey(e) {
+ // F key
+ return (e.which === 70);
+ }
+
+ function seekStepD(e) {
+ // SeekStep caller, returns an int, or a function returning an int
+ return (typeof seekStep === "function" ? seekStep(e) : seekStep);
+ }
+
+ player.on('keydown', keyDown);
+ player.on('dblclick', doubleClick);
+ player.on('mousewheel', mouseScroll);
+ player.on("DOMMouseScroll", mouseScroll);
+
+ return this;
+ };
+
+ var registerPlugin = videojs.registerPlugin || videojs.plugin;
+ registerPlugin('hotkeys', hotkeys);
+}));
diff --git a/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js b/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js
new file mode 100644
index 0000000..4422ad8
--- /dev/null
+++ b/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js
@@ -0,0 +1,3 @@
+/* videojs-hotkeys v0.2.22 - https://github.com/ctd1500/videojs-hotkeys */
+!function(e,t){"undefined"!=typeof window&&window.videojs?t(window.videojs):"function"==typeof define&&define.amd?define("videojs-hotkeys",["video.js"],function(e){return t(e.default||e)}):"undefined"!=typeof module&&module.exports&&(module.exports=t(require("video.js")))}(0,function(e){"use strict";"undefined"!=typeof window&&(window.videojs_hotkeys={version:"0.2.22"});(e.registerPlugin||e.plugin)("hotkeys",function(t){function r(e){return"function"==typeof a?a(e):a}var n=this,o=n.el(),u=document,l={volumeStep:.1,seekStep:5,enableMute:!0,enableVolumeScroll:!0,enableFullscreen:!0,enableNumbers:!0,enableJogStyle:!1,alwaysCaptureHotkeys:!1,enableModifiersForNumbers:!0,enableInactiveFocus:!0,skipInitialFocus:!1,playPauseKey:function(e){return 32===e.which||179===e.which},rewindKey:function(e){return 37===e.which||177===e.which},forwardKey:function(e){return 39===e.which||176===e.which},volumeUpKey:function(e){return 38===e.which},volumeDownKey:function(e){return 40===e.which},muteKey:function(e){return 77===e.which},fullscreenKey:function(e){return 70===e.which},customKeys:{}},i=e.mergeOptions||e.util.mergeOptions,c=(t=i(l,t||{})).volumeStep,a=t.seekStep,s=t.enableMute,m=t.enableVolumeScroll,y=t.enableFullscreen,f=t.enableNumbers,v=t.enableJogStyle,d=t.alwaysCaptureHotkeys,p=t.enableModifiersForNumbers,b=t.enableInactiveFocus,h=t.skipInitialFocus;o.hasAttribute("tabIndex")||o.setAttribute("tabIndex","-1"),o.style.outline="none",!d&&n.autoplay()||h||n.one("play",function(){o.focus()}),b&&n.on("userinactive",function(){var e=function(){clearTimeout(t)},t=setTimeout(function(){n.off("useractive",e);var t=u.activeElement,r=o.querySelector(".vjs-control-bar");t&&t.parentElement==r&&o.focus()},10);n.one("useractive",e)}),n.on("play",function(){var e=o.querySelector(".iframeblocker");e&&""===e.style.display&&(e.style.display="block",e.style.bottom="39px")});var w=function(e){if(n.controls()){var t=u.activeElement;if((d||t==o||t==o.querySelector(".vjs-tech")||t==o.querySelector(".iframeblocker")||t==o.querySelector(".vjs-control-bar"))&&m){e=window.event||e;var r=Math.max(-1,Math.min(1,e.wheelDelta||-e.detail));e.preventDefault(),1==r?n.volume(n.volume()+c):-1==r&&n.volume(n.volume()-c)}}},k=function(e,r){return t.playPauseKey(e,r)?1:t.rewindKey(e,r)?2:t.forwardKey(e,r)?3:t.volumeUpKey(e,r)?4:t.volumeDownKey(e,r)?5:t.muteKey(e,r)?6:t.fullscreenKey(e,r)?7:void 0};return n.on("keydown",function(e){var l,i,a=e.which,m=e.preventDefault,b=n.duration();if(n.controls()){var h=u.activeElement;if(d||h==o||h==o.querySelector(".vjs-tech")||h==o.querySelector(".vjs-control-bar")||h==o.querySelector(".iframeblocker"))switch(k(e,n)){case 1:m(),d&&e.stopPropagation(),n.paused()?n.play():n.pause();break;case 2:l=!n.paused(),m(),l&&n.pause(),(i=n.currentTime()-r(e))<=0&&(i=0),n.currentTime(i),l&&n.play();break;case 3:l=!n.paused(),m(),l&&n.pause(),(i=n.currentTime()+r(e))>=b&&(i=l?b-.001:b),n.currentTime(i),l&&n.play();break;case 5:m(),v?(i=n.currentTime()-1,n.currentTime()<=1&&(i=0),n.currentTime(i)):n.volume(n.volume()-c);break;case 4:m(),v?((i=n.currentTime()+1)>=b&&(i=b),n.currentTime(i)):n.volume(n.volume()+c);break;case 6:s&&n.muted(!n.muted());break;case 7:y&&(n.isFullscreen()?n.exitFullscreen():n.requestFullscreen());break;default:if((a>47&&a<59||a>95&&a<106)&&(p||!(e.metaKey||e.ctrlKey||e.altKey))&&f){var w=48;a>95&&(w=96);var K=a-w;m(),n.currentTime(n.duration()*K*.1)}for(var S in t.customKeys){var F=t.customKeys[S];F&&F.key&&F.handler&&F.key(e)&&(m(),F.handler(n,t,e))}}}}),n.on("dblclick",function(e){if(n.controls()){var t=e.relatedTarget||e.toElement||u.activeElement;t!=o&&t!=o.querySelector(".vjs-tech")&&t!=o.querySelector(".iframeblocker")||y&&(n.isFullscreen()?n.exitFullscreen():n.requestFullscreen())}}),n.on("mousewheel",w),n.on("DOMMouseScroll",w),this})});
+//# sourceMappingURL=videojs.hotkeys.min.js.map \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js.map b/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js.map
new file mode 100644
index 0000000..0cace8c
--- /dev/null
+++ b/assets/netcut/lib/videojs-hotkeys/videojs.hotkeys.min.js.map
@@ -0,0 +1 @@
+{"version":3,"sources":["videojs.hotkeys.js"],"names":["root","factory","window","videojs","define","amd","module","default","exports","require","this","version","registerPlugin","plugin","options","seekStepD","e","seekStep","player","pEl","el","doc","document","def_options","volumeStep","enableMute","enableVolumeScroll","enableFullscreen","enableNumbers","enableJogStyle","alwaysCaptureHotkeys","enableModifiersForNumbers","enableInactiveFocus","skipInitialFocus","playPauseKey","which","rewindKey","forwardKey","volumeUpKey","volumeDownKey","muteKey","fullscreenKey","customKeys","mergeOptions","util","enableFull","hasAttribute","setAttribute","style","outline","autoplay","one","focus","on","cancelFocusingPlayer","clearTimeout","focusingPlayerTimeout","setTimeout","off","activeElement","controlBar","querySelector","parentElement","ifblocker","display","bottom","mouseScroll","event","controls","activeEl","delta","Math","max","min","wheelDelta","detail","preventDefault","volume","checkKeys","wasPlaying","seekTime","ewhich","ePreventDefault","duration","stopPropagation","paused","play","pause","currentTime","muted","isFullscreen","exitFullscreen","requestFullscreen","metaKey","ctrlKey","altKey","sub","number","customKey","customHotkey","key","handler","relatedTarget","toElement"],"mappings":";CAQE,SAASA,EAAMC,GACO,oBAAXC,QAA0BA,OAAOC,QAC1CF,EAAQC,OAAOC,SACY,mBAAXC,QAAyBA,OAAOC,IAChDD,OAAO,mBAAoB,YAAa,SAAUE,GAChD,OAAOL,EAAQK,EAAOC,SAAWD,KAER,oBAAXA,QAA0BA,OAAOE,UACjDF,OAAOE,QAAUP,EAAQQ,QAAQ,eAEnCC,EAAM,SAAUP,GAChB,aACsB,oBAAXD,SACTA,OAAwB,iBAAMS,QAAS,YAuXpBR,EAAQS,gBAAkBT,EAAQU,QACxC,UArXD,SAASC,GAuWrB,SAASC,EAAUC,GAEjB,MAA4B,mBAAbC,EAA0BA,EAASD,GAAKC,EAxWzD,IAAIC,EAASR,KACTS,EAAMD,EAAOE,KACbC,EAAMC,SACNC,GACFC,WAAY,GACZP,SAAU,EACVQ,YAAY,EACZC,oBAAoB,EACpBC,kBAAkB,EAClBC,eAAe,EACfC,gBAAgB,EAChBC,sBAAsB,EACtBC,2BAA2B,EAC3BC,qBAAqB,EACrBC,kBAAkB,EAClBC,aAoTF,SAAsBlB,GAEpB,OAAoB,KAAZA,EAAEmB,OAA4B,MAAZnB,EAAEmB,OArT5BC,UAwTF,SAAmBpB,GAEjB,OAAoB,KAAZA,EAAEmB,OAA4B,MAAZnB,EAAEmB,OAzT5BE,WA4TF,SAAoBrB,GAElB,OAAoB,KAAZA,EAAEmB,OAA4B,MAAZnB,EAAEmB,OA7T5BG,YAgUF,SAAqBtB,GAEnB,OAAoB,KAAZA,EAAEmB,OAjUVI,cAoUF,SAAuBvB,GAErB,OAAoB,KAAZA,EAAEmB,OArUVK,QAwUF,SAAiBxB,GAEf,OAAoB,KAAZA,EAAEmB,OAzUVM,cA4UF,SAAuBzB,GAErB,OAAoB,KAAZA,EAAEmB,OA7UVO,eAYEC,EAAexC,EAAQwC,cAAgBxC,EAAQyC,KAAKD,aAGpDnB,GAFJV,EAAU6B,EAAapB,EAAaT,QAEXU,WACvBP,EAAWH,EAAQG,SACnBQ,EAAaX,EAAQW,WACrBC,EAAqBZ,EAAQY,mBAC7BmB,EAAa/B,EAAQa,iBACrBC,EAAgBd,EAAQc,cACxBC,EAAiBf,EAAQe,eACzBC,EAAuBhB,EAAQgB,qBAC/BC,EAA4BjB,EAAQiB,0BACpCC,EAAsBlB,EAAQkB,oBAC9BC,EAAmBnB,EAAQmB,iBAGxBd,EAAI2B,aAAa,aACpB3B,EAAI4B,aAAa,WAAY,MAI/B5B,EAAI6B,MAAMC,QAAU,QAEhBnB,GAAyBZ,EAAOgC,YAC7BjB,GACHf,EAAOiC,IAAI,OAAQ,WACjBhC,EAAIiC,UAKNpB,GACFd,EAAOmC,GAAG,eAAgB,WAExB,IAAIC,EAAuB,WACzBC,aAAaC,IAEXA,EAAwBC,WAAW,WACrCvC,EAAOwC,IAAI,aAAcJ,GACzB,IAAIK,EAAgBtC,EAAIsC,cACpBC,EAAazC,EAAI0C,cAAc,oBAC/BF,GAAiBA,EAAcG,eAAiBF,GAClDzC,EAAIiC,SAEL,IAEHlC,EAAOiC,IAAI,aAAcG,KAI7BpC,EAAOmC,GAAG,OAAQ,WAEhB,IAAIU,EAAY5C,EAAI0C,cAAc,kBAC9BE,GAAyC,KAA5BA,EAAUf,MAAMgB,UAC/BD,EAAUf,MAAMgB,QAAU,QAC1BD,EAAUf,MAAMiB,OAAS,UAI7B,IAsKIC,EAAc,SAAqBC,GAErC,GAAIjD,EAAOkD,WAAY,CACrB,IAAIC,EAAWhD,EAAIsC,cACnB,IAAI7B,GACAuC,GAAYlD,GACZkD,GAAYlD,EAAI0C,cAAc,cAC9BQ,GAAYlD,EAAI0C,cAAc,mBAC9BQ,GAAYlD,EAAI0C,cAAc,sBAE5BnC,EAAoB,CACtByC,EAAQjE,OAAOiE,OAASA,EACxB,IAAIG,EAAQC,KAAKC,KAAK,EAAGD,KAAKE,IAAI,EAAIN,EAAMO,aAAeP,EAAMQ,SACjER,EAAMS,iBAEO,GAATN,EACFpD,EAAO2D,OAAO3D,EAAO2D,SAAWrD,IACb,GAAV8C,GACTpD,EAAO2D,OAAO3D,EAAO2D,SAAWrD,MAOtCsD,EAAY,SAAmB9D,EAAGE,GAIpC,OAAIJ,EAAQoB,aAAalB,EAAGE,GAvQlB,EA4QNJ,EAAQsB,UAAUpB,EAAGE,GA3Qf,EAgRNJ,EAAQuB,WAAWrB,EAAGE,GA/Qf,EAoRPJ,EAAQwB,YAAYtB,EAAGE,GAnRf,EAwRRJ,EAAQyB,cAAcvB,EAAGE,GAvRf,EA4RVJ,EAAQ0B,QAAQxB,EAAGE,GA3Rf,EAgSJJ,EAAQ2B,cAAczB,EAAGE,GA/Rf,OA+Rd,GAkDF,OALAA,EAAOmC,GAAG,UA9QI,SAAiBc,GAC7B,IAA0BY,EAAYC,EAAlCC,EAASd,EAAMhC,MACf+C,EAAkBf,EAAMS,eACxBO,EAAWjE,EAAOiE,WAEtB,GAAIjE,EAAOkD,WAAY,CAGrB,IAAIC,EAAWhD,EAAIsC,cACnB,GAAI7B,GACAuC,GAAYlD,GACZkD,GAAYlD,EAAI0C,cAAc,cAC9BQ,GAAYlD,EAAI0C,cAAc,qBAC9BQ,GAAYlD,EAAI0C,cAAc,kBAEhC,OAAQiB,EAAUX,EAAOjD,IAEvB,KArFI,EAsFFgE,IACIpD,GAEFqC,EAAMiB,kBAGJlE,EAAOmE,SACTnE,EAAOoE,OAEPpE,EAAOqE,QAET,MAGF,KAnGI,EAoGFR,GAAc7D,EAAOmE,SACrBH,IACIH,GACF7D,EAAOqE,SAETP,EAAW9D,EAAOsE,cAAgBzE,EAAUoD,KAG5B,IACda,EAAW,GAEb9D,EAAOsE,YAAYR,GACfD,GACF7D,EAAOoE,OAET,MACF,KAnHK,EAoHHP,GAAc7D,EAAOmE,SACrBH,IACIH,GACF7D,EAAOqE,SAETP,EAAW9D,EAAOsE,cAAgBzE,EAAUoD,KAG5BgB,IACdH,EAAWD,EAAaI,EAAW,KAAOA,GAE5CjE,EAAOsE,YAAYR,GACfD,GACF7D,EAAOoE,OAET,MAGF,KApIQ,EAqINJ,IACKrD,GAGHmD,EAAW9D,EAAOsE,cAAgB,EAC9BtE,EAAOsE,eAAiB,IAC1BR,EAAW,GAEb9D,EAAOsE,YAAYR,IANnB9D,EAAO2D,OAAO3D,EAAO2D,SAAWrD,GAQlC,MACF,KAjJM,EAkJJ0D,IACKrD,IAGHmD,EAAW9D,EAAOsE,cAAgB,IAClBL,IACdH,EAAWG,GAEbjE,EAAOsE,YAAYR,IANnB9D,EAAO2D,OAAO3D,EAAO2D,SAAWrD,GAQlC,MAGF,KA7JE,EA8JIC,GACFP,EAAOuE,OAAOvE,EAAOuE,SAEvB,MAGF,KAnKQ,EAoKF5C,IACE3B,EAAOwE,eACTxE,EAAOyE,iBAEPzE,EAAO0E,qBAGX,MAEF,QAEE,IAAKX,EAAS,IAAMA,EAAS,IAAQA,EAAS,IAAMA,EAAS,OAEvDlD,KAA+BoC,EAAM0B,SAAW1B,EAAM2B,SAAW3B,EAAM4B,UACrEnE,EAAe,CACjB,IAAIoE,EAAM,GACN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\ No newline at end of file
diff --git a/assets/netcut/lib/videojs-markers/videojs-markers.js b/assets/netcut/lib/videojs-markers/videojs-markers.js
new file mode 100644
index 0000000..7fc6822
--- /dev/null
+++ b/assets/netcut/lib/videojs-markers/videojs-markers.js
@@ -0,0 +1,517 @@
+(function (global, factory) {
+ if (typeof define === "function" && define.amd) {
+ define(['video.js'], factory);
+ } else if (typeof exports !== "undefined") {
+ factory(require('video.js'));
+ } else {
+ var mod = {
+ exports: {}
+ };
+ factory(global.videojs);
+ global.videojsMarkers = mod.exports;
+ }
+})(this, function (_video) {
+ /*! videojs-markers - v1.0.1 - 2018-04-03
+ * Copyright (c) 2018 ; Licensed */
+ 'use strict';
+
+ var _video2 = _interopRequireDefault(_video);
+
+ function _interopRequireDefault(obj) {
+ return obj && obj.__esModule ? obj : {
+ default: obj
+ };
+ }
+
+ var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+ };
+
+ // default setting
+ var defaultSetting = {
+ markerStyle: {
+ 'width': '7px',
+ 'border-radius': '30%',
+ 'background-color': 'red'
+ },
+ markerTip: {
+ display: true,
+ text: function text(marker) {
+ return "Break: " + marker.text;
+ },
+ time: function time(marker) {
+ return marker.time;
+ }
+ },
+ breakOverlay: {
+ display: false,
+ displayTime: 3,
+ text: function text(marker) {
+ return "Break overlay: " + marker.overlayText;
+ },
+ style: {
+ 'width': '100%',
+ 'height': '20%',
+ 'background-color': 'rgba(0,0,0,0.7)',
+ 'color': 'white',
+ 'font-size': '17px'
+ }
+ },
+ onMarkerClick: function onMarkerClick(marker) {},
+ onMarkerReached: function onMarkerReached(marker, index) {},
+ markers: []
+ };
+
+ // create a non-colliding random number
+ function generateUUID() {
+ var d = new Date().getTime();
+ var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+ var r = (d + Math.random() * 16) % 16 | 0;
+ d = Math.floor(d / 16);
+ return (c == 'x' ? r : r & 0x3 | 0x8).toString(16);
+ });
+ return uuid;
+ };
+
+ /**
+ * Returns the size of an element and its position
+ * a default Object with 0 on each of its properties
+ * its return in case there's an error
+ * @param {Element} element el to get the size and position
+ * @return {DOMRect|Object} size and position of an element
+ */
+ function getElementBounding(element) {
+ var elementBounding;
+ var defaultBoundingRect = {
+ top: 0,
+ bottom: 0,
+ left: 0,
+ width: 0,
+ height: 0,
+ right: 0
+ };
+
+ try {
+ elementBounding = element.getBoundingClientRect();
+ } catch (e) {
+ elementBounding = defaultBoundingRect;
+ }
+
+ return elementBounding;
+ }
+
+ var NULL_INDEX = -1;
+
+ function registerVideoJsMarkersPlugin(options) {
+ // copied from video.js/src/js/utils/merge-options.js since
+ // videojs 4 doens't support it by defualt.
+ if (!_video2.default.mergeOptions) {
+ var isPlain = function isPlain(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && toString.call(value) === '[object Object]' && value.constructor === Object;
+ };
+
+ var mergeOptions = function mergeOptions(source1, source2) {
+
+ var result = {};
+ var sources = [source1, source2];
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+ Object.keys(source).forEach(function (key) {
+ var value = source[key];
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+ return result;
+ };
+
+ _video2.default.mergeOptions = mergeOptions;
+ }
+
+ if (!_video2.default.dom.createEl) {
+ _video2.default.dom.createEl = function (tagName, props, attrs) {
+ var el = _video2.default.Player.prototype.dom.createEl(tagName, props);
+ if (!!attrs) {
+ Object.keys(attrs).forEach(function (key) {
+ el.setAttribute(key, attrs[key]);
+ });
+ }
+ return el;
+ };
+ }
+
+ /**
+ * register the markers plugin (dependent on jquery)
+ */
+ var setting = _video2.default.mergeOptions(defaultSetting, options),
+ markersMap = {},
+ markersList = [],
+ // list of markers sorted by time
+ currentMarkerIndex = NULL_INDEX,
+ player = this,
+ markerTip = null,
+ breakOverlay = null,
+ overlayIndex = NULL_INDEX;
+
+ function sortMarkersList() {
+ // sort the list by time in asc order
+ markersList.sort(function (a, b) {
+ return setting.markerTip.time(a) - setting.markerTip.time(b);
+ });
+ }
+
+ function addMarkers(newMarkers) {
+ newMarkers.forEach(function (marker) {
+ marker.key = generateUUID();
+
+ player.el().querySelector('.vjs-progress-holder').appendChild(createMarkerDiv(marker));
+
+ // store marker in an internal hash map
+ markersMap[marker.key] = marker;
+ markersList.push(marker);
+ });
+
+ sortMarkersList();
+ }
+
+ function getPosition(marker) {
+ return setting.markerTip.time(marker) / player.duration() * 100;
+ }
+
+ function setMarkderDivStyle(marker, markerDiv) {
+ markerDiv.className = 'vjs-marker ' + (marker.class || "");
+
+ Object.keys(setting.markerStyle).forEach(function (key) {
+ markerDiv.style[key] = setting.markerStyle[key];
+ });
+
+ // hide out-of-bound markers
+ var ratio = marker.time / player.duration();
+ if (ratio < 0 || ratio > 1) {
+ markerDiv.style.display = 'none';
+ }
+
+ // set position
+ markerDiv.style.left = getPosition(marker) + '%';
+ if (marker.duration) {
+ markerDiv.style.width = marker.duration / player.duration() * 100 + '%';
+ markerDiv.style.marginLeft = '0px';
+ } else {
+ var markerDivBounding = getElementBounding(markerDiv);
+ markerDiv.style.marginLeft = markerDivBounding.width / 2 + 'px';
+ }
+ }
+
+ function createMarkerDiv(marker) {
+
+ var markerDiv = _video2.default.dom.createEl('div', {}, {
+ 'data-marker-key': marker.key,
+ 'data-marker-time': setting.markerTip.time(marker)
+ });
+
+ setMarkderDivStyle(marker, markerDiv);
+
+ // bind click event to seek to marker time
+ markerDiv.addEventListener('click', function (e) {
+ var preventDefault = false;
+ if (typeof setting.onMarkerClick === "function") {
+ // if return false, prevent default behavior
+ preventDefault = setting.onMarkerClick(marker) === false;
+ }
+
+ if (!preventDefault) {
+ var key = this.getAttribute('data-marker-key');
+ player.currentTime(setting.markerTip.time(markersMap[key]));
+ }
+ });
+
+ if (setting.markerTip.display) {
+ registerMarkerTipHandler(markerDiv);
+ }
+
+ return markerDiv;
+ }
+
+ function updateMarkers(force) {
+ // update UI for markers whose time changed
+ markersList.forEach(function (marker) {
+ var markerDiv = player.el().querySelector(".vjs-marker[data-marker-key='" + marker.key + "']");
+ var markerTime = setting.markerTip.time(marker);
+
+ if (force || markerDiv.getAttribute('data-marker-time') !== markerTime) {
+ setMarkderDivStyle(marker, markerDiv);
+ markerDiv.setAttribute('data-marker-time', markerTime);
+ }
+ });
+ sortMarkersList();
+ }
+
+ function removeMarkers(indexArray) {
+ // reset overlay
+ if (!!breakOverlay) {
+ overlayIndex = NULL_INDEX;
+ breakOverlay.style.visibility = "hidden";
+ }
+ currentMarkerIndex = NULL_INDEX;
+
+ var deleteIndexList = [];
+ indexArray.forEach(function (index) {
+ var marker = markersList[index];
+ if (marker) {
+ // delete from memory
+ delete markersMap[marker.key];
+ deleteIndexList.push(index);
+
+ // delete from dom
+ var el = player.el().querySelector(".vjs-marker[data-marker-key='" + marker.key + "']");
+ el && el.parentNode.removeChild(el);
+ }
+ });
+
+ // clean up markers array
+ deleteIndexList.reverse();
+ deleteIndexList.forEach(function (deleteIndex) {
+ markersList.splice(deleteIndex, 1);
+ });
+
+ // sort again
+ sortMarkersList();
+ }
+
+ // attach hover event handler
+ function registerMarkerTipHandler(markerDiv) {
+ markerDiv.addEventListener('mouseover', function () {
+ var marker = markersMap[markerDiv.getAttribute('data-marker-key')];
+ if (!!markerTip) {
+ markerTip.querySelector('.vjs-tip-inner').innerText = setting.markerTip.text(marker);
+ // margin-left needs to minus the padding length to align correctly with the marker
+ markerTip.style.left = getPosition(marker) + '%';
+ var markerTipBounding = getElementBounding(markerTip);
+ var markerDivBounding = getElementBounding(markerDiv);
+ markerTip.style.marginLeft = -parseFloat(markerTipBounding.width / 2) + parseFloat(markerDivBounding.width / 4) + 'px';
+ markerTip.style.visibility = 'visible';
+ }
+ });
+
+ markerDiv.addEventListener('mouseout', function () {
+ if (!!markerTip) {
+ markerTip.style.visibility = "hidden";
+ }
+ });
+ }
+
+ function initializeMarkerTip() {
+ markerTip = _video2.default.dom.createEl('div', {
+ className: 'vjs-tip',
+ innerHTML: "<div class='vjs-tip-arrow'></div><div class='vjs-tip-inner'></div>"
+ });
+ player.el().querySelector('.vjs-progress-holder').appendChild(markerTip);
+ }
+
+ // show or hide break overlays
+ function updateBreakOverlay() {
+ if (!setting.breakOverlay.display || currentMarkerIndex < 0) {
+ return;
+ }
+
+ var currentTime = player.currentTime();
+ var marker = markersList[currentMarkerIndex];
+ var markerTime = setting.markerTip.time(marker);
+
+ if (currentTime >= markerTime && currentTime <= markerTime + setting.breakOverlay.displayTime) {
+ if (overlayIndex !== currentMarkerIndex) {
+ overlayIndex = currentMarkerIndex;
+ if (breakOverlay) {
+ breakOverlay.querySelector('.vjs-break-overlay-text').innerHTML = setting.breakOverlay.text(marker);
+ }
+ }
+
+ if (breakOverlay) {
+ breakOverlay.style.visibility = "visible";
+ }
+ } else {
+ overlayIndex = NULL_INDEX;
+ if (breakOverlay) {
+ breakOverlay.style.visibility = "hidden";
+ }
+ }
+ }
+
+ // problem when the next marker is within the overlay display time from the previous marker
+ function initializeOverlay() {
+ breakOverlay = _video2.default.dom.createEl('div', {
+ className: 'vjs-break-overlay',
+ innerHTML: "<div class='vjs-break-overlay-text'></div>"
+ });
+ Object.keys(setting.breakOverlay.style).forEach(function (key) {
+ if (breakOverlay) {
+ breakOverlay.style[key] = setting.breakOverlay.style[key];
+ }
+ });
+ player.el().appendChild(breakOverlay);
+ overlayIndex = NULL_INDEX;
+ }
+
+ function onTimeUpdate() {
+ onUpdateMarker();
+ updateBreakOverlay();
+ options.onTimeUpdateAfterMarkerUpdate && options.onTimeUpdateAfterMarkerUpdate();
+ }
+
+ function onUpdateMarker() {
+ /*
+ check marker reached in between markers
+ the logic here is that it triggers a new marker reached event only if the player
+ enters a new marker range (e.g. from marker 1 to marker 2). Thus, if player is on marker 1 and user clicked on marker 1 again, no new reached event is triggered)
+ */
+ if (!markersList.length) {
+ return;
+ }
+
+ var getNextMarkerTime = function getNextMarkerTime(index) {
+ if (index < markersList.length - 1) {
+ return setting.markerTip.time(markersList[index + 1]);
+ }
+ // next marker time of last marker would be end of video time
+ return player.duration();
+ };
+ var currentTime = player.currentTime();
+ var newMarkerIndex = NULL_INDEX;
+
+ if (currentMarkerIndex !== NULL_INDEX) {
+ // check if staying at same marker
+ var nextMarkerTime = getNextMarkerTime(currentMarkerIndex);
+ if (currentTime >= setting.markerTip.time(markersList[currentMarkerIndex]) && currentTime < nextMarkerTime) {
+ return;
+ }
+
+ // check for ending (at the end current time equals player duration)
+ if (currentMarkerIndex === markersList.length - 1 && currentTime === player.duration()) {
+ return;
+ }
+ }
+
+ // check first marker, no marker is selected
+ if (currentTime < setting.markerTip.time(markersList[0])) {
+ newMarkerIndex = NULL_INDEX;
+ } else {
+ // look for new index
+ for (var i = 0; i < markersList.length; i++) {
+ nextMarkerTime = getNextMarkerTime(i);
+ if (currentTime >= setting.markerTip.time(markersList[i]) && currentTime < nextMarkerTime) {
+ newMarkerIndex = i;
+ break;
+ }
+ }
+ }
+
+ // set new marker index
+ if (newMarkerIndex !== currentMarkerIndex) {
+ // trigger event if index is not null
+ if (newMarkerIndex !== NULL_INDEX && options.onMarkerReached) {
+ options.onMarkerReached(markersList[newMarkerIndex], newMarkerIndex);
+ }
+ currentMarkerIndex = newMarkerIndex;
+ }
+ }
+
+ // setup the whole thing
+ function initialize() {
+ if (setting.markerTip.display) {
+ initializeMarkerTip();
+ }
+
+ // remove existing markers if already initialized
+ player.markers.removeAll();
+ addMarkers(setting.markers);
+
+ if (setting.breakOverlay.display) {
+ initializeOverlay();
+ }
+ onTimeUpdate();
+ player.on("timeupdate", onTimeUpdate);
+ player.off("loadedmetadata");
+ }
+
+ // setup the plugin after we loaded video's meta data
+ player.on("loadedmetadata", function () {
+ initialize();
+ });
+
+ // exposed plugin API
+ player.markers = {
+ getMarkers: function getMarkers() {
+ return markersList;
+ },
+ next: function next() {
+ // go to the next marker from current timestamp
+ var currentTime = player.currentTime();
+ for (var i = 0; i < markersList.length; i++) {
+ var markerTime = setting.markerTip.time(markersList[i]);
+ if (markerTime > currentTime) {
+ player.currentTime(markerTime);
+ break;
+ }
+ }
+ },
+ prev: function prev() {
+ // go to previous marker
+ var currentTime = player.currentTime();
+ for (var i = markersList.length - 1; i >= 0; i--) {
+ var markerTime = setting.markerTip.time(markersList[i]);
+ // add a threshold
+ if (markerTime + 0.5 < currentTime) {
+ player.currentTime(markerTime);
+ return;
+ }
+ }
+ },
+ add: function add(newMarkers) {
+ // add new markers given an array of index
+ addMarkers(newMarkers);
+ },
+ remove: function remove(indexArray) {
+ // remove markers given an array of index
+ removeMarkers(indexArray);
+ },
+ removeAll: function removeAll() {
+ var indexArray = [];
+ for (var i = 0; i < markersList.length; i++) {
+ indexArray.push(i);
+ }
+ removeMarkers(indexArray);
+ },
+ // force - force all markers to be updated, regardless of if they have changed or not.
+ updateTime: function updateTime(force) {
+ // notify the plugin to update the UI for changes in marker times
+ updateMarkers(force);
+ },
+ reset: function reset(newMarkers) {
+ // remove all the existing markers and add new ones
+ player.markers.removeAll();
+ addMarkers(newMarkers);
+ },
+ destroy: function destroy() {
+ // unregister the plugins and clean up even handlers
+ player.markers.removeAll();
+ breakOverlay && breakOverlay.remove();
+ markerTip && markerTip.remove();
+ player.off("timeupdate", updateBreakOverlay);
+ delete player.markers;
+ }
+ };
+ }
+
+ _video2.default.registerPlugin('markers', registerVideoJsMarkersPlugin);
+});
+//# sourceMappingURL=videojs-markers.js.map
diff --git a/assets/netcut/lib/videojs-markers/videojs-markers.js.map b/assets/netcut/lib/videojs-markers/videojs-markers.js.map
new file mode 100644
index 0000000..0dbedd3
--- /dev/null
+++ b/assets/netcut/lib/videojs-markers/videojs-markers.js.map
@@ -0,0 +1 @@
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videojs-markers - v1.0.1 - 2018-04-03\n* Copyright (c) 2018 ; Licensed */\n'use strict';\n\nimport videojs from 'video.js';\n\ntype Marker = {\n time: number,\n duration: number,\n text?: string,\n class?: string,\n overlayText?: string,\n // private property\n key: string,\n};\n\n// default setting\nconst defaultSetting = {\n markerStyle: {\n 'width':'7px',\n 'border-radius': '30%',\n 'background-color': 'red',\n },\n markerTip: {\n display: true,\n text: function(marker) {\n return \"Break: \" + marker.text;\n },\n time: function(marker) {\n return marker.time;\n },\n },\n breakOverlay:{\n display: false,\n displayTime: 3,\n text: function(marker) {\n return \"Break overlay: \" + marker.overlayText;\n },\n style: {\n 'width':'100%',\n 'height': '20%',\n 'background-color': 'rgba(0,0,0,0.7)',\n 'color': 'white',\n 'font-size': '17px',\n },\n },\n onMarkerClick: function(marker) {},\n onMarkerReached: function(marker, index) {},\n markers: [],\n};\n\n// create a non-colliding random number\nfunction generateUUID(): string {\n var d = new Date().getTime();\n var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {\n var r = (d + Math.random()*16)%16 | 0;\n d = Math.floor(d/16);\n return (c=='x' ? r : (r&0x3|0x8)).toString(16);\n });\n return uuid;\n};\n\n/**\n * Returns the size of an element and its position\n * a default Object with 0 on each of its properties\n * its return in case there's an error\n * @param {Element} element el to get the size and position\n * @return {DOMRect|Object} size and position of an element\n */\nfunction getElementBounding(element) {\n var elementBounding;\n const defaultBoundingRect = {\n top: 0,\n bottom: 0,\n left: 0,\n width: 0,\n height: 0,\n right: 0\n };\n\n try {\n elementBounding = element.getBoundingClientRect();\n } catch (e) {\n elementBounding = defaultBoundingRect;\n }\n\n return elementBounding;\n}\n\nconst NULL_INDEX = -1;\n\nfunction registerVideoJsMarkersPlugin(options) {\n // copied from video.js/src/js/utils/merge-options.js since\n // videojs 4 doens't support it by defualt.\n if (!videojs.mergeOptions) {\n function isPlain(value) {\n return !!value && typeof value === 'object' &&\n toString.call(value) === '[object Object]' &&\n value.constructor === Object;\n }\n function mergeOptions(source1: Object, source2: Object) {\n\n const result = {};\n const sources = [source1, source2];\n sources.forEach(source => {\n if (!source) {\n return;\n }\n Object.keys(source).forEach(key => {\n let value = source[key];\n if (!isPlain(value)) {\n result[key] = value;\n return;\n }\n if (!isPlain(result[key])) {\n result[key] = {};\n }\n result[key] = mergeOptions(result[key], value);\n })\n });\n return result;\n }\n videojs.mergeOptions = mergeOptions;\n }\n\n if (!videojs.dom.createEl) {\n videojs.dom.createEl = function(tagName: string, props: Object, attrs?: Object): void {\n const el = videojs.Player.prototype.dom.createEl(tagName, props);\n if (!!attrs) {\n Object.keys(attrs).forEach(key => {\n el.setAttribute(key, attrs[key]);\n });\n }\n return el;\n }\n }\n \n\n /**\n * register the markers plugin (dependent on jquery)\n */\n let setting = videojs.mergeOptions(defaultSetting, options),\n markersMap: {[key:string]: Marker} = {},\n markersList: Array<Marker> = [], // list of markers sorted by time\n currentMarkerIndex = NULL_INDEX,\n player = this,\n markerTip = null,\n breakOverlay = null,\n overlayIndex = NULL_INDEX;\n\n function sortMarkersList(): void {\n // sort the list by time in asc order\n markersList.sort((a, b) => {\n return setting.markerTip.time(a) - setting.markerTip.time(b);\n });\n }\n\n function addMarkers(newMarkers: Array<Marker>): void {\n newMarkers.forEach((marker: Marker) => {\n marker.key = generateUUID();\n\n player.el().querySelector('.vjs-progress-holder')\n .appendChild(createMarkerDiv(marker));\n\n // store marker in an internal hash map\n markersMap[marker.key] = marker;\n markersList.push(marker);\n })\n\n sortMarkersList();\n }\n\n function getPosition(marker: Marker): number {\n return (setting.markerTip.time(marker) / player.duration()) * 100;\n }\n\n function setMarkderDivStyle(marker: Marker, markerDiv: Object): void {\n markerDiv.className = `vjs-marker ${marker.class || \"\"}`;\n\n Object.keys(setting.markerStyle).forEach(key => {\n markerDiv.style[key] = setting.markerStyle[key];\n });\n\n // hide out-of-bound markers\n const ratio = marker.time / player.duration();\n if (ratio < 0 || ratio > 1) {\n markerDiv.style.display = 'none';\n }\n\n // set position\n markerDiv.style.left = getPosition(marker) + '%';\n if (marker.duration) {\n markerDiv.style.width = (marker.duration / player.duration()) * 100 + '%';\n markerDiv.style.marginLeft = '0px';\n } else {\n const markerDivBounding = getElementBounding(markerDiv);\n markerDiv.style.marginLeft = markerDivBounding.width / 2 + 'px';\n } \n }\n\n function createMarkerDiv(marker: Marker): Object {\n\n var markerDiv = videojs.dom.createEl('div', {}, {\n 'data-marker-key': marker.key,\n 'data-marker-time': setting.markerTip.time(marker)\n });\n\n setMarkderDivStyle(marker, markerDiv);\n\n // bind click event to seek to marker time\n markerDiv.addEventListener('click', function(e) {\n var preventDefault = false;\n if (typeof setting.onMarkerClick === \"function\") {\n // if return false, prevent default behavior\n preventDefault = setting.onMarkerClick(marker) === false;\n }\n\n if (!preventDefault) {\n var key = this.getAttribute('data-marker-key');\n player.currentTime(setting.markerTip.time(markersMap[key]));\n }\n });\n\n if (setting.markerTip.display) {\n registerMarkerTipHandler(markerDiv);\n }\n\n return markerDiv;\n }\n\n function updateMarkers(force: boolean): void {\n // update UI for markers whose time changed\n markersList.forEach((marker: Marker) => {\n var markerDiv = player.el().querySelector(\".vjs-marker[data-marker-key='\" + marker.key +\"']\");\n var markerTime = setting.markerTip.time(marker);\n\n if (force || markerDiv.getAttribute('data-marker-time') !== markerTime) {\n setMarkderDivStyle(marker, markerDiv);\n markerDiv.setAttribute('data-marker-time', markerTime);\n }\n });\n sortMarkersList();\n }\n\n function removeMarkers(indexArray: Array<number>): void {\n // reset overlay\n if (!!breakOverlay){\n overlayIndex = NULL_INDEX;\n breakOverlay.style.visibility = \"hidden\";\n }\n currentMarkerIndex = NULL_INDEX;\n\n let deleteIndexList: Array<number> = [];\n indexArray.forEach((index: number) => {\n let marker = markersList[index];\n if (marker) {\n // delete from memory\n delete markersMap[marker.key];\n deleteIndexList.push(index);\n\n // delete from dom\n let el = player.el().querySelector(\".vjs-marker[data-marker-key='\" + marker.key +\"']\");\n el && el.parentNode.removeChild(el);\n }\n });\n\n // clean up markers array\n deleteIndexList.reverse();\n deleteIndexList.forEach((deleteIndex: number) => {\n markersList.splice(deleteIndex, 1);\n });\n\n // sort again\n sortMarkersList();\n }\n\n // attach hover event handler\n function registerMarkerTipHandler(markerDiv: Object): void {\n markerDiv.addEventListener('mouseover', () => {\n var marker = markersMap[markerDiv.getAttribute('data-marker-key')];\n if (!!markerTip) {\n markerTip.querySelector('.vjs-tip-inner').innerText = setting.markerTip.text(marker);\n // margin-left needs to minus the padding length to align correctly with the marker\n markerTip.style.left = getPosition(marker) + '%';\n var markerTipBounding = getElementBounding(markerTip);\n var markerDivBounding = getElementBounding(markerDiv);\n markerTip.style.marginLeft = \n -parseFloat(markerTipBounding.width / 2) + parseFloat(markerDivBounding.width / 4) + 'px';\n markerTip.style.visibility = 'visible';\n }\n });\n\n markerDiv.addEventListener('mouseout',() => {\n if (!!markerTip) {\n markerTip.style.visibility = \"hidden\";\n }\n });\n }\n\n function initializeMarkerTip(): void {\n markerTip = videojs.dom.createEl('div', {\n className: 'vjs-tip',\n innerHTML: \"<div class='vjs-tip-arrow'></div><div class='vjs-tip-inner'></div>\",\n });\n player.el().querySelector('.vjs-progress-holder').appendChild(markerTip);\n }\n\n // show or hide break overlays\n function updateBreakOverlay(): void {\n if (!setting.breakOverlay.display || currentMarkerIndex < 0) {\n return;\n }\n\n var currentTime = player.currentTime();\n var marker = markersList[currentMarkerIndex];\n var markerTime = setting.markerTip.time(marker);\n\n if (\n currentTime >= markerTime &&\n currentTime <= (markerTime + setting.breakOverlay.displayTime)\n ) {\n if (overlayIndex !== currentMarkerIndex) {\n overlayIndex = currentMarkerIndex;\n if (breakOverlay) {\n breakOverlay.querySelector('.vjs-break-overlay-text').innerHTML = setting.breakOverlay.text(marker);\n }\n }\n\n if (breakOverlay) {\n breakOverlay.style.visibility = \"visible\";\n }\n } else {\n overlayIndex = NULL_INDEX;\n if (breakOverlay) {\n breakOverlay.style.visibility = \"hidden\";\n }\n }\n }\n\n // problem when the next marker is within the overlay display time from the previous marker\n function initializeOverlay(): void {\n breakOverlay = videojs.dom.createEl('div', {\n className: 'vjs-break-overlay',\n innerHTML: \"<div class='vjs-break-overlay-text'></div>\"\n });\n Object.keys(setting.breakOverlay.style).forEach(key => {\n if (breakOverlay) {\n breakOverlay.style[key] = setting.breakOverlay.style[key];\n }\n });\n player.el().appendChild(breakOverlay);\n overlayIndex = NULL_INDEX;\n }\n\n function onTimeUpdate(): void {\n onUpdateMarker();\n updateBreakOverlay();\n options.onTimeUpdateAfterMarkerUpdate && options.onTimeUpdateAfterMarkerUpdate();\n }\n\n function onUpdateMarker() {\n /*\n check marker reached in between markers\n the logic here is that it triggers a new marker reached event only if the player\n enters a new marker range (e.g. from marker 1 to marker 2). Thus, if player is on marker 1 and user clicked on marker 1 again, no new reached event is triggered)\n */\n if (!markersList.length) {\n return;\n }\n\n var getNextMarkerTime = (index: number) => {\n if (index < markersList.length - 1) {\n return setting.markerTip.time(markersList[index + 1]);\n }\n // next marker time of last marker would be end of video time\n return player.duration();\n }\n var currentTime = player.currentTime();\n var newMarkerIndex = NULL_INDEX;\n\n if (currentMarkerIndex !== NULL_INDEX) {\n // check if staying at same marker\n var nextMarkerTime = getNextMarkerTime(currentMarkerIndex);\n if(\n currentTime >= setting.markerTip.time(markersList[currentMarkerIndex]) &&\n currentTime < nextMarkerTime\n ) {\n return;\n }\n\n // check for ending (at the end current time equals player duration)\n if (\n currentMarkerIndex === markersList.length - 1 &&\n currentTime === player.duration()\n ) {\n return;\n }\n }\n\n // check first marker, no marker is selected\n if (currentTime < setting.markerTip.time(markersList[0])) {\n newMarkerIndex = NULL_INDEX;\n } else {\n // look for new index\n for (var i = 0; i < markersList.length; i++) {\n nextMarkerTime = getNextMarkerTime(i);\n if (\n currentTime >= setting.markerTip.time(markersList[i]) &&\n currentTime < nextMarkerTime\n ) {\n newMarkerIndex = i;\n break;\n }\n }\n }\n\n // set new marker index\n if (newMarkerIndex !== currentMarkerIndex) {\n // trigger event if index is not null\n if (newMarkerIndex !== NULL_INDEX && options.onMarkerReached) {\n options.onMarkerReached(markersList[newMarkerIndex], newMarkerIndex);\n }\n currentMarkerIndex = newMarkerIndex;\n }\n }\n\n // setup the whole thing\n function initialize(): void {\n if (setting.markerTip.display) {\n initializeMarkerTip();\n }\n\n // remove existing markers if already initialized\n player.markers.removeAll();\n addMarkers(setting.markers);\n\n if (setting.breakOverlay.display) {\n initializeOverlay();\n }\n onTimeUpdate();\n player.on(\"timeupdate\", onTimeUpdate);\n player.off(\"loadedmetadata\");\n }\n\n // setup the plugin after we loaded video's meta data\n player.on(\"loadedmetadata\", function() {\n initialize();\n });\n\n // exposed plugin API\n player.markers = {\n getMarkers: function(): Array<Marker> {\n return markersList;\n },\n next : function(): void {\n // go to the next marker from current timestamp\n const currentTime = player.currentTime();\n for (var i = 0; i < markersList.length; i++) {\n var markerTime = setting.markerTip.time(markersList[i]);\n if (markerTime > currentTime) {\n player.currentTime(markerTime);\n break;\n }\n }\n },\n prev : function(): void {\n // go to previous marker\n const currentTime = player.currentTime();\n for (var i = markersList.length - 1; i >= 0 ; i--) {\n var markerTime = setting.markerTip.time(markersList[i]);\n // add a threshold\n if (markerTime + 0.5 < currentTime) {\n player.currentTime(markerTime);\n return;\n }\n }\n },\n add : function(newMarkers: Array<Marker>): void {\n // add new markers given an array of index\n addMarkers(newMarkers);\n },\n remove: function(indexArray: Array<number>): void {\n // remove markers given an array of index\n removeMarkers(indexArray);\n },\n removeAll: function(): void {\n var indexArray = [];\n for (var i = 0; i < markersList.length; i++) {\n indexArray.push(i);\n }\n removeMarkers(indexArray);\n },\n // force - force all markers to be updated, regardless of if they have changed or not.\n updateTime: function(force: boolean): void {\n // notify the plugin to update the UI for changes in marker times\n updateMarkers(force);\n },\n reset: function(newMarkers: Array<Marker>): void {\n // remove all the existing markers and add new ones\n player.markers.removeAll();\n addMarkers(newMarkers);\n },\n destroy: function(): void {\n // unregister the plugins and clean up even handlers\n player.markers.removeAll();\n breakOverlay && breakOverlay.remove();\n markerTip && markerTip.remove();\n player.off(\"timeupdate\", updateBreakOverlay);\n delete player.markers;\n },\n };\n}\n\nvideojs.registerPlugin('markers', registerVideoJsMarkersPlugin);\n"]} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-markers/videojs-markers.min.js b/assets/netcut/lib/videojs-markers/videojs-markers.min.js
new file mode 100644
index 0000000..46230b7
--- /dev/null
+++ b/assets/netcut/lib/videojs-markers/videojs-markers.min.js
@@ -0,0 +1,4 @@
+/*! videojs-markers - v1.0.1 - 2018-04-03
+* Copyright (c) 2018 ; Licensed */
+
+!function(e,r){if("function"==typeof define&&define.amd)define(["video.js"],r);else if("undefined"!=typeof exports)r(require("video.js"));else{r(e.videojs),e.videojsMarkers={}}}(this,function(e){"use strict";var r,h=(r=e)&&r.__esModule?r:{default:r};var x="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},b={markerStyle:{width:"7px","border-radius":"30%","background-color":"red"},markerTip:{display:!0,text:function(e){return"Break: "+e.text},time:function(e){return e.time}},breakOverlay:{display:!1,displayTime:3,text:function(e){return"Break overlay: "+e.overlayText},style:{width:"100%",height:"20%","background-color":"rgba(0,0,0,0.7)",color:"white","font-size":"17px"}},onMarkerClick:function(e){},onMarkerReached:function(e,r){},markers:[]};function T(e){var r,t={top:0,bottom:0,left:0,width:0,height:0,right:0};try{r=e.getBoundingClientRect()}catch(e){r=t}return r}var g=-1;h.default.registerPlugin("markers",function(n){if(!h.default.mergeOptions){var o=function(e){return!!e&&"object"===(void 0===e?"undefined":x(e))&&"[object Object]"===toString.call(e)&&e.constructor===Object};h.default.mergeOptions=function i(e,r){var a={};return[e,r].forEach(function(t){t&&Object.keys(t).forEach(function(e){var r=t[e];o(r)?(o(a[e])||(a[e]={}),a[e]=i(a[e],r)):a[e]=r})}),a}}h.default.dom.createEl||(h.default.dom.createEl=function(e,r,t){var i=h.default.Player.prototype.dom.createEl(e,r);return t&&Object.keys(t).forEach(function(e){i.setAttribute(e,t[e])}),i});var l=h.default.mergeOptions(b,n),u={},d=[],c=g,f=this,s=null,a=null,m=g;function r(){d.sort(function(e,r){return l.markerTip.time(e)-l.markerTip.time(r)})}function t(e){e.forEach(function(e){var t,i,a,r;e.key=(t=(new Date).getTime(),"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g,function(e){var r=(t+16*Math.random())%16|0;return t=Math.floor(t/16),("x"==e?r:3&r|8).toString(16)})),f.el().querySelector(".vjs-progress-holder").appendChild((i=e,r=h.default.dom.createEl("div",{},{"data-marker-key":i.key,"data-marker-time":l.markerTip.time(i)}),y(i,r),r.addEventListener("click",function(e){var r=!1;if("function"==typeof l.onMarkerClick&&(r=!1===l.onMarkerClick(i)),!r){var t=this.getAttribute("data-marker-key");f.currentTime(l.markerTip.time(u[t]))}}),l.markerTip.display&&((a=r).addEventListener("mouseover",function(){var e=u[a.getAttribute("data-marker-key")];if(s){s.querySelector(".vjs-tip-inner").innerText=l.markerTip.text(e),s.style.left=v(e)+"%";var r=T(s),t=T(a);s.style.marginLeft=-parseFloat(r.width/2)+parseFloat(t.width/4)+"px",s.style.visibility="visible"}}),a.addEventListener("mouseout",function(){s&&(s.style.visibility="hidden")})),r)),u[e.key]=e,d.push(e)}),r()}function v(e){return l.markerTip.time(e)/f.duration()*100}function y(e,r){r.className="vjs-marker "+(e.class||""),Object.keys(l.markerStyle).forEach(function(e){r.style[e]=l.markerStyle[e]});var t=e.time/f.duration();if((t<0||1<t)&&(r.style.display="none"),r.style.left=v(e)+"%",e.duration)r.style.width=e.duration/f.duration()*100+"%",r.style.marginLeft="0px";else{var i=T(r);r.style.marginLeft=i.width/2+"px"}}function i(e){a&&(m=g,a.style.visibility="hidden"),c=g;var i=[];e.forEach(function(e){var r=d[e];if(r){delete u[r.key],i.push(e);var t=f.el().querySelector(".vjs-marker[data-marker-key='"+r.key+"']");t&&t.parentNode.removeChild(t)}}),i.reverse(),i.forEach(function(e){d.splice(e,1)}),r()}function e(){if(l.breakOverlay.display&&!(c<0)){var e=f.currentTime(),r=d[c],t=l.markerTip.time(r);t<=e&&e<=t+l.breakOverlay.displayTime?(m!==c&&(m=c,a&&(a.querySelector(".vjs-break-overlay-text").innerHTML=l.breakOverlay.text(r))),a&&(a.style.visibility="visible")):(m=g,a&&(a.style.visibility="hidden"))}}function k(){!function(){if(d.length){var e=function(e){return e<d.length-1?l.markerTip.time(d[e+1]):f.duration()},r=f.currentTime(),t=g;if(c!==g){var i=e(c);if(r>=l.markerTip.time(d[c])&&r<i)return;if(c===d.length-1&&r===f.duration())return}if(r<l.markerTip.time(d[0]))t=g;else for(var a=0;a<d.length;a++)if(i=e(a),r>=l.markerTip.time(d[a])&&r<i){t=a;break}t!==c&&(t!==g&&n.onMarkerReached&&n.onMarkerReached(d[t],t),c=t)}}(),e(),n.onTimeUpdateAfterMarkerUpdate&&n.onTimeUpdateAfterMarkerUpdate()}function p(){l.markerTip.display&&(s=h.default.dom.createEl("div",{className:"vjs-tip",innerHTML:"<div class='vjs-tip-arrow'></div><div class='vjs-tip-inner'></div>"}),f.el().querySelector(".vjs-progress-holder").appendChild(s)),f.markers.removeAll(),t(l.markers),l.breakOverlay.display&&(a=h.default.dom.createEl("div",{className:"vjs-break-overlay",innerHTML:"<div class='vjs-break-overlay-text'></div>"}),Object.keys(l.breakOverlay.style).forEach(function(e){a&&(a.style[e]=l.breakOverlay.style[e])}),f.el().appendChild(a),m=g),k(),f.on("timeupdate",k),f.off("loadedmetadata")}f.on("loadedmetadata",function(){p()}),f.markers={getMarkers:function(){return d},next:function(){for(var e=f.currentTime(),r=0;r<d.length;r++){var t=l.markerTip.time(d[r]);if(e<t){f.currentTime(t);break}}},prev:function(){for(var e=f.currentTime(),r=d.length-1;0<=r;r--){var t=l.markerTip.time(d[r]);if(t+.5<e)return void f.currentTime(t)}},add:function(e){t(e)},remove:function(e){i(e)},removeAll:function(){for(var e=[],r=0;r<d.length;r++)e.push(r);i(e)},updateTime:function(e){var i;i=e,d.forEach(function(e){var r=f.el().querySelector(".vjs-marker[data-marker-key='"+e.key+"']"),t=l.markerTip.time(e);(i||r.getAttribute("data-marker-time")!==t)&&(y(e,r),r.setAttribute("data-marker-time",t))}),r()},reset:function(e){f.markers.removeAll(),t(e)},destroy:function(){f.markers.removeAll(),a&&a.remove(),s&&s.remove(),f.off("timeupdate",e),delete f.markers}}})}); \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-markers/videojs.markers.css b/assets/netcut/lib/videojs-markers/videojs.markers.css
new file mode 100644
index 0000000..7655a64
--- /dev/null
+++ b/assets/netcut/lib/videojs-markers/videojs.markers.css
@@ -0,0 +1,59 @@
+.vjs-marker {
+ position: absolute;
+ left: 0;
+ bottom: 0em;
+ opacity: 1;
+ height: 100%;
+ transition: opacity .2s ease;
+ -webkit-transition: opacity .2s ease;
+ -moz-transition: opacity .2s ease;
+ z-index: 100;
+}
+.vjs-marker:hover {
+ cursor: pointer;
+ -webkit-transform: scale(1.3, 1.3);
+ -moz-transform: scale(1.3, 1.3);
+ -o-transform: scale(1.3, 1.3);
+ -ms-transform: scale(1.3, 1.3);
+ transform: scale(1.3, 1.3);
+}
+.vjs-tip {
+ visibility: hidden;
+ display: block;
+ opacity: 0.8;
+ padding: 5px;
+ font-size: 10px;
+ position: absolute;
+ bottom: 14px;
+ z-index: 100000;
+}
+.vjs-tip .vjs-tip-arrow {
+ background: url(data:image/gif;base64,R0lGODlhCQAJAIABAAAAAAAAACH5BAEAAAEALAAAAAAJAAkAAAIRjAOnwIrcDJxvwkplPtchVQAAOw==) no-repeat top left;
+ bottom: 0;
+ left: 50%;
+ margin-left: -4px;
+ background-position: bottom left;
+ position: absolute;
+ width: 9px;
+ height: 5px;
+}
+.vjs-tip .vjs-tip-inner {
+ border-radius: 3px;
+ -moz-border-radius: 3px;
+ -webkit-border-radius: 3px;
+ padding: 5px 8px 4px 8px;
+ background-color: black;
+ color: white;
+ max-width: 200px;
+ text-align: center;
+}
+.vjs-break-overlay {
+ visibility: hidden;
+ position: absolute;
+ z-index: 100000;
+ top: 0;
+}
+.vjs-break-overlay .vjs-break-overlay-text {
+ padding: 9px;
+ text-align: center;
+}
diff --git a/assets/netcut/lib/videojs-markers/videojs.markers.min.css b/assets/netcut/lib/videojs-markers/videojs.markers.min.css
new file mode 100644
index 0000000..4b148d3
--- /dev/null
+++ b/assets/netcut/lib/videojs-markers/videojs.markers.min.css
@@ -0,0 +1 @@
+.vjs-marker{position:absolute;left:0;bottom:0;opacity:1;height:100%;transition:opacity .2s ease;-webkit-transition:opacity .2s ease;-moz-transition:opacity .2s ease;z-index:100}.vjs-marker:hover{cursor:pointer;-webkit-transform:scale(1.3,1.3);-moz-transform:scale(1.3,1.3);-o-transform:scale(1.3,1.3);-ms-transform:scale(1.3,1.3);transform:scale(1.3,1.3)}.vjs-tip{visibility:hidden;display:block;opacity:.8;padding:5px;font-size:10px;position:absolute;bottom:14px;z-index:100000}.vjs-tip .vjs-tip-arrow{background:url(data:image/gif;base64,R0lGODlhCQAJAIABAAAAAAAAACH5BAEAAAEALAAAAAAJAAkAAAIRjAOnwIrcDJxvwkplPtchVQAAOw==) no-repeat top left;bottom:0;left:50%;margin-left:-4px;background-position:bottom left;position:absolute;width:9px;height:5px}.vjs-tip .vjs-tip-inner{border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;padding:5px 8px 4px 8px;background-color:#000;color:#fff;max-width:200px;text-align:center}.vjs-break-overlay{visibility:hidden;position:absolute;z-index:100000;top:0}.vjs-break-overlay .vjs-break-overlay-text{padding:9px;text-align:center} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css b/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css
new file mode 100644
index 0000000..8e09c6b
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css
@@ -0,0 +1,47 @@
+/*!
+Default styles for videojs-wavesurfer 2.5.1
+*/
+/* Position fullscreen control on right side of the player.
+--------------------------------------------------------------------------------
+*/
+.video-js.vjs-wavesurfer .vjs-control.vjs-fullscreen-control {
+ position: absolute;
+ right: 0; }
+
+/* Ensure custom controls are always visible because
+ the plugin hides and replace the video.js native mobile
+ controls.
+--------------------------------------------------------------------------------
+*/
+.vjs-wavesurfer .vjs-using-native-controls .vjs-control-bar {
+ display: flex !important; }
+
+/* Ensure playToggle has pointer cursor.
+--------------------------------------------------------------------------------
+*/
+.vjs-wavesurfer button.vjs-play-control.vjs-control.vjs-button {
+ cursor: pointer; }
+
+/* Ensure that vjs menus and interfaces can be interacted with (such as the
+ closed captions button).
+--------------------------------------------------------------------------------
+*/
+.vjs-wavesurfer .vjs-menu-content {
+ z-index: 4; }
+
+.vjs-wavesurfer .vjs-modal-dialog, .vjs-text-track-display {
+ z-index: 4; }
+
+/* Handle responsive / fluid view.
+--------------------------------------------------------------------------------
+*/
+.vjs-wavesurfer.vjs-fluid wave.vjs-wavedisplay {
+ top: 0;
+ position: absolute !important;
+ width: 100%;
+ min-width: 100%;
+ max-width: 100%;
+ height: 100%; }
+
+
+/*# sourceMappingURL=videojs.wavesurfer.css.map*/ \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css.map b/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css.map
new file mode 100644
index 0000000..c055733
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.css.map
@@ -0,0 +1 @@
+{"version":3,"sources":["webpack://VideojsWavesurfer/./src/css/videojs.wavesurfer.scss"],"names":[],"mappings":";;;AAAA;AACA;AACA;AACA;AACA;AACA,WAAW;;AAEX;AACA;AACA;AACA;AACA;AACA;AACA,2BAA2B;;AAE3B;AACA;AACA;AACA;AACA,kBAAkB;;AAElB;AACA;AACA;AACA;AACA;AACA,aAAa;;AAEb;AACA,aAAa;;AAEb;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,eAAe","file":"css/videojs.wavesurfer.css","sourcesContent":["/* Position fullscreen control on right side of the player.\n--------------------------------------------------------------------------------\n*/\n.video-js.vjs-wavesurfer .vjs-control.vjs-fullscreen-control {\n position: absolute;\n right: 0; }\n\n/* Ensure custom controls are always visible because\n the plugin hides and replace the video.js native mobile\n controls.\n--------------------------------------------------------------------------------\n*/\n.vjs-wavesurfer .vjs-using-native-controls .vjs-control-bar {\n display: flex !important; }\n\n/* Ensure playToggle has pointer cursor.\n--------------------------------------------------------------------------------\n*/\n.vjs-wavesurfer button.vjs-play-control.vjs-control.vjs-button {\n cursor: pointer; }\n\n/* Ensure that vjs menus and interfaces can be interacted with (such as the\n closed captions button).\n--------------------------------------------------------------------------------\n*/\n.vjs-wavesurfer .vjs-menu-content {\n z-index: 4; }\n\n.vjs-wavesurfer .vjs-modal-dialog, .vjs-text-track-display {\n z-index: 4; }\n\n/* Handle responsive / fluid view.\n--------------------------------------------------------------------------------\n*/\n.vjs-wavesurfer.vjs-fluid wave.vjs-wavedisplay {\n top: 0;\n position: absolute !important;\n width: 100%;\n min-width: 100%;\n max-width: 100%;\n height: 100%; }\n"],"sourceRoot":""} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.min.css b/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.min.css
new file mode 100644
index 0000000..2b7f774
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/css/videojs.wavesurfer.min.css
@@ -0,0 +1,3 @@
+/*!
+Default styles for videojs-wavesurfer 2.5.1
+*/.video-js.vjs-wavesurfer .vjs-control.vjs-fullscreen-control{position:absolute;right:0}.vjs-wavesurfer .vjs-using-native-controls .vjs-control-bar{display:flex!important}.vjs-wavesurfer button.vjs-play-control.vjs-control.vjs-button{cursor:pointer}.vjs-text-track-display,.vjs-wavesurfer .vjs-menu-content,.vjs-wavesurfer .vjs-modal-dialog{z-index:4}.vjs-wavesurfer.vjs-fluid wave.vjs-wavedisplay{height:100%;max-width:100%;min-width:100%;position:absolute!important;top:0;width:100%} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js
new file mode 100644
index 0000000..4c1b566
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js
@@ -0,0 +1,1278 @@
+/*!
+ * videojs-wavesurfer
+ * @version 2.5.1
+ * @see https://github.com/collab-project/videojs-wavesurfer
+ * @copyright 2014-2018 Collab
+ * @license MIT
+ */
+(function webpackUniversalModuleDefinition(root, factory) {
+ if(typeof exports === 'object' && typeof module === 'object')
+ module.exports = factory(require("videojs"), require("WaveSurfer"));
+ else if(typeof define === 'function' && define.amd)
+ define("VideojsWavesurfer", ["videojs", "WaveSurfer"], factory);
+ else if(typeof exports === 'object')
+ exports["VideojsWavesurfer"] = factory(require("videojs"), require("WaveSurfer"));
+ else
+ root["VideojsWavesurfer"] = factory(root["videojs"], root["WaveSurfer"]);
+})(window, function(__WEBPACK_EXTERNAL_MODULE_video_js__, __WEBPACK_EXTERNAL_MODULE_wavesurfer_js__) {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ // The module cache
+/******/ var installedModules = {};
+/******/
+/******/ // The require function
+/******/ function __webpack_require__(moduleId) {
+/******/
+/******/ // Check if module is in cache
+/******/ if(installedModules[moduleId]) {
+/******/ return installedModules[moduleId].exports;
+/******/ }
+/******/ // Create a new module (and put it into the cache)
+/******/ var module = installedModules[moduleId] = {
+/******/ i: moduleId,
+/******/ l: false,
+/******/ exports: {}
+/******/ };
+/******/
+/******/ // Execute the module function
+/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ // Flag the module as loaded
+/******/ module.l = true;
+/******/
+/******/ // Return the exports of the module
+/******/ return module.exports;
+/******/ }
+/******/
+/******/
+/******/ // expose the modules object (__webpack_modules__)
+/******/ __webpack_require__.m = modules;
+/******/
+/******/ // expose the module cache
+/******/ __webpack_require__.c = installedModules;
+/******/
+/******/ // define getter function for harmony exports
+/******/ __webpack_require__.d = function(exports, name, getter) {
+/******/ if(!__webpack_require__.o(exports, name)) {
+/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
+/******/ }
+/******/ };
+/******/
+/******/ // define __esModule on exports
+/******/ __webpack_require__.r = function(exports) {
+/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
+/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+/******/ }
+/******/ Object.defineProperty(exports, '__esModule', { value: true });
+/******/ };
+/******/
+/******/ // create a fake namespace object
+/******/ // mode & 1: value is a module id, require it
+/******/ // mode & 2: merge all properties of value into the ns
+/******/ // mode & 4: return value when already ns object
+/******/ // mode & 8|1: behave like require
+/******/ __webpack_require__.t = function(value, mode) {
+/******/ if(mode & 1) value = __webpack_require__(value);
+/******/ if(mode & 8) return value;
+/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
+/******/ var ns = Object.create(null);
+/******/ __webpack_require__.r(ns);
+/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
+/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
+/******/ return ns;
+/******/ };
+/******/
+/******/ // getDefaultExport function for compatibility with non-harmony modules
+/******/ __webpack_require__.n = function(module) {
+/******/ var getter = module && module.__esModule ?
+/******/ function getDefault() { return module['default']; } :
+/******/ function getModuleExports() { return module; };
+/******/ __webpack_require__.d(getter, 'a', getter);
+/******/ return getter;
+/******/ };
+/******/
+/******/ // Object.prototype.hasOwnProperty.call
+/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ // __webpack_public_path__
+/******/ __webpack_require__.p = "";
+/******/
+/******/
+/******/ // Load entry module and return exports
+/******/ return __webpack_require__(__webpack_require__.s = 0);
+/******/ })
+/************************************************************************/
+/******/ ({
+
+/***/ "./node_modules/global/window.js":
+/*!***************************************!*\
+ !*** ./node_modules/global/window.js ***!
+ \***************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(global) {var win;
+
+if (typeof window !== "undefined") {
+ win = window;
+} else if (typeof global !== "undefined") {
+ win = global;
+} else if (typeof self !== "undefined"){
+ win = self;
+} else {
+ win = {};
+}
+
+module.exports = win;
+
+/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))
+
+/***/ }),
+
+/***/ "./node_modules/webpack/buildin/global.js":
+/*!***********************************!*\
+ !*** (webpack)/buildin/global.js ***!
+ \***********************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
+
+var g;
+
+// This works in non-strict mode
+g = (function() {
+ return this;
+})();
+
+try {
+ // This works if eval is allowed (see CSP)
+ g = g || Function("return this")() || (1, eval)("this");
+} catch (e) {
+ // This works if the window reference is available
+ if (typeof window === "object") g = window;
+}
+
+// g can still be undefined, but nothing to do about it...
+// We return undefined, instead of nothing here, so it's
+// easier to handle this case. if(!global) { ...}
+
+module.exports = g;
+
+
+/***/ }),
+
+/***/ "./src/css/videojs.wavesurfer.scss":
+/*!*****************************************!*\
+ !*** ./src/css/videojs.wavesurfer.scss ***!
+ \*****************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+// extracted by mini-css-extract-plugin
+
+/***/ }),
+
+/***/ "./src/js/defaults.js":
+/*!****************************!*\
+ !*** ./src/js/defaults.js ***!
+ \****************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+/**
+ * @file defaults.js
+ * @since 2.0.0
+ */
+
+// plugin defaults
+var pluginDefaultOptions = {
+ // Display console log messages.
+ debug: false,
+ // msDisplayMax indicates the number of seconds that is
+ // considered the boundary value for displaying milliseconds
+ // in the time controls. An audio clip with a total length of
+ // 2 seconds and a msDisplayMax of 3 will use the format
+ // M:SS:MMM. Clips longer than msDisplayMax will be displayed
+ // as M:SS or HH:MM:SS.
+ msDisplayMax: 3
+};
+
+exports.default = pluginDefaultOptions;
+module.exports = exports["default"];
+
+/***/ }),
+
+/***/ "./src/js/utils/format-time.js":
+/*!*************************************!*\
+ !*** ./src/js/utils/format-time.js ***!
+ \*************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+/**
+ * @file format-time.js
+ * @since 2.0.0
+ */
+
+/**
+ * Format seconds as a time string, H:MM:SS, M:SS or M:SS:MMM.
+ *
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide.
+ *
+ * @param {number} seconds - Number of seconds to be turned into a
+ * string.
+ * @param {number} guide - Number (in seconds) to model the string
+ * after.
+ * @param {number} msDisplayMax - Number (in milliseconds) to model the string
+ * after.
+ * @return {string} Time formatted as H:MM:SS, M:SS or M:SS:MMM, e.g.
+ * 0:00:12.
+ * @private
+ */
+var formatTime = function formatTime(seconds, guide, msDisplayMax) {
+ // Default to using seconds as guide
+ seconds = seconds < 0 ? 0 : seconds;
+ guide = guide || seconds;
+ var s = Math.floor(seconds % 60),
+ m = Math.floor(seconds / 60 % 60),
+ h = Math.floor(seconds / 3600),
+ gm = Math.floor(guide / 60 % 60),
+ gh = Math.floor(guide / 3600),
+ ms = Math.floor((seconds - s) * 1000);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this
+ // setting will add the minimum number of fields specified by the
+ // guide
+ h = m = s = ms = '-';
+ }
+
+ // Check if we need to show milliseconds
+ if (guide > 0 && guide < msDisplayMax) {
+ if (ms < 100) {
+ if (ms < 10) {
+ ms = '00' + ms;
+ } else {
+ ms = '0' + ms;
+ }
+ }
+ ms = ':' + ms;
+ } else {
+ ms = '';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s + ms;
+};
+
+exports.default = formatTime;
+module.exports = exports['default'];
+
+/***/ }),
+
+/***/ "./src/js/utils/log.js":
+/*!*****************************!*\
+ !*** ./src/js/utils/log.js ***!
+ \*****************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+/**
+ * @file log.js
+ * @since 2.0.0
+ */
+
+var ERROR = 'error';
+var WARN = 'warn';
+
+/**
+ * Log message (if the debug option is enabled).
+ */
+var log = function log(args, logType, debug) {
+ if (debug === true) {
+ if (logType === ERROR) {
+ videojs.log.error(args);
+ } else if (logType === WARN) {
+ videojs.log.warn(args);
+ } else {
+ videojs.log(args);
+ }
+ }
+};
+
+exports.default = log;
+module.exports = exports['default'];
+
+/***/ }),
+
+/***/ "./src/js/videojs.wavesurfer.js":
+/*!**************************************!*\
+ !*** ./src/js/videojs.wavesurfer.js ***!
+ \**************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _log2 = __webpack_require__(/*! ./utils/log */ "./src/js/utils/log.js");
+
+var _log3 = _interopRequireDefault(_log2);
+
+var _formatTime = __webpack_require__(/*! ./utils/format-time */ "./src/js/utils/format-time.js");
+
+var _formatTime2 = _interopRequireDefault(_formatTime);
+
+var _defaults = __webpack_require__(/*! ./defaults */ "./src/js/defaults.js");
+
+var _defaults2 = _interopRequireDefault(_defaults);
+
+var _window = __webpack_require__(/*! global/window */ "./node_modules/global/window.js");
+
+var _window2 = _interopRequireDefault(_window);
+
+var _video = __webpack_require__(/*! video.js */ "video.js");
+
+var _video2 = _interopRequireDefault(_video);
+
+var _wavesurfer = __webpack_require__(/*! wavesurfer.js */ "wavesurfer.js");
+
+var _wavesurfer2 = _interopRequireDefault(_wavesurfer);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
+ * @file videojs.wavesurfer.js
+ *
+ * The main file for the videojs-wavesurfer project.
+ * MIT license: https://github.com/collab-project/videojs-wavesurfer/blob/master/LICENSE
+ */
+
+var Plugin = _video2.default.getPlugin('plugin');
+
+var wavesurferClassName = 'vjs-wavedisplay';
+
+/**
+ * Draw a waveform for audio and video files in a video.js player.
+ *
+ * @class Wavesurfer
+ * @extends videojs.Plugin
+ */
+
+var Wavesurfer = function (_Plugin) {
+ _inherits(Wavesurfer, _Plugin);
+
+ /**
+ * The constructor function for the class.
+ *
+ * @param {(videojs.Player|Object)} player
+ * @param {Object} options - Player options.
+ */
+ function Wavesurfer(player, options) {
+ _classCallCheck(this, Wavesurfer);
+
+ // add plugin style
+ var _this = _possibleConstructorReturn(this, (Wavesurfer.__proto__ || Object.getPrototypeOf(Wavesurfer)).call(this, player, options));
+
+ player.addClass('vjs-wavesurfer');
+
+ // parse options
+ options = _video2.default.mergeOptions(_defaults2.default, options);
+ _this.waveReady = false;
+ _this.waveFinished = false;
+ _this.liveMode = false;
+ _this.debug = options.debug.toString() === 'true';
+ _this.msDisplayMax = parseFloat(options.msDisplayMax);
+ _this.textTracksEnabled = _this.player.options_.tracks.length > 0;
+
+ // microphone plugin
+ if (options.src === 'live') {
+ // check if the wavesurfer.js microphone plugin can be enabled
+ if (_wavesurfer2.default.microphone !== undefined) {
+ // enable audio input from a microphone
+ _this.liveMode = true;
+ _this.waveReady = true;
+ } else {
+ _this.onWaveError('Could not find wavesurfer.js ' + 'microphone plugin!');
+ return _possibleConstructorReturn(_this);
+ }
+ }
+
+ // wait until player ui is ready
+ _this.player.one('ready', _this.initialize.bind(_this));
+ return _this;
+ }
+
+ /**
+ * Player UI is ready: customize controls.
+ */
+
+
+ _createClass(Wavesurfer, [{
+ key: 'initialize',
+ value: function initialize() {
+ // hide big play button
+ this.player.bigPlayButton.hide();
+
+ // the native controls don't work for this UI so disable
+ // them no matter what
+ if (this.player.usingNativeControls_ === true) {
+ if (this.player.tech_.el_ !== undefined) {
+ this.player.tech_.el_.controls = false;
+ }
+ }
+
+ // controls
+ if (this.player.options_.controls === true) {
+ // make sure controlBar is showing
+ this.player.controlBar.show();
+ this.player.controlBar.el_.style.display = 'flex';
+
+ // progress control isn't used by this plugin
+ this.player.controlBar.progressControl.hide();
+
+ // make sure time displays are visible
+ var uiElements = [this.player.controlBar.currentTimeDisplay, this.player.controlBar.timeDivider, this.player.controlBar.durationDisplay];
+ uiElements.forEach(function (element) {
+ // ignore and show when essential elements have been disabled
+ // by user
+ if (element !== undefined) {
+ element.el_.style.display = 'block';
+ element.show();
+ }
+ });
+ if (this.player.controlBar.remainingTimeDisplay !== undefined) {
+ this.player.controlBar.remainingTimeDisplay.hide();
+ }
+
+ // handle play toggle interaction
+ this.player.controlBar.playToggle.on(['tap', 'click'], this.onPlayToggle.bind(this));
+
+ // disable play button until waveform is ready
+ // (except when in live mode)
+ if (!this.liveMode) {
+ this.player.controlBar.playToggle.hide();
+ }
+ }
+
+ // wavesurfer.js setup
+ var mergedOptions = this.parseOptions(this.player.options_.plugins.wavesurfer);
+ this.surfer = _wavesurfer2.default.create(mergedOptions);
+ this.surfer.on('error', this.onWaveError.bind(this));
+ this.surfer.on('finish', this.onWaveFinish.bind(this));
+ if (this.liveMode === true) {
+ // listen for wavesurfer.js microphone plugin events
+ this.surfer.microphone.on('deviceError', this.onWaveError.bind(this));
+ }
+ this.surferReady = this.onWaveReady.bind(this);
+ this.surferProgress = this.onWaveProgress.bind(this);
+ this.surferSeek = this.onWaveSeek.bind(this);
+
+ // only listen to these wavesurfer.js playback events when not
+ // in live mode
+ if (!this.liveMode) {
+ this.setupPlaybackEvents(true);
+ }
+
+ // video.js player events
+ this.player.on('volumechange', this.onVolumeChange.bind(this));
+ this.player.on('fullscreenchange', this.onScreenChange.bind(this));
+
+ // make sure volume is muted when requested
+ if (this.player.muted()) {
+ this.setVolume(0);
+ }
+
+ // video.js fluid option
+ if (this.player.options_.fluid === true) {
+ // give wave element a classname so it can be styled
+ this.surfer.drawer.wrapper.className = wavesurferClassName;
+ // listen for window resize events
+ this.responsiveWave = _wavesurfer2.default.util.debounce(this.onResizeChange.bind(this), 150);
+ _window2.default.addEventListener('resize', this.responsiveWave);
+ }
+
+ // text tracks
+ if (this.textTracksEnabled) {
+ // disable timeupdates
+ this.player.controlBar.currentTimeDisplay.off(this.player, 'timeupdate', this.player.controlBar.currentTimeDisplay.throttledUpdateContent);
+
+ // sets up an interval function to track current time
+ // and trigger timeupdate every 250 milliseconds.
+ // needed for text tracks
+ this.player.tech_.trackCurrentTime();
+ }
+
+ // kick things off
+ this.startPlayers();
+ }
+
+ /**
+ * Initializes the waveform options.
+ *
+ * @param {Object} surferOpts - Plugin options.
+ * @private
+ */
+
+ }, {
+ key: 'parseOptions',
+ value: function parseOptions(surferOpts) {
+ var rect = this.player.el_.getBoundingClientRect();
+ this.originalWidth = this.player.options_.width || rect.width;
+ this.originalHeight = this.player.options_.height || rect.height;
+
+ // controlbar
+ var controlBarHeight = this.player.controlBar.height();
+ if (this.player.options_.controls === true && controlBarHeight === 0) {
+ // the dimensions of the controlbar are not known yet, but we
+ // need it now, so we can calculate the height of the waveform.
+ // The default height is 30px, so use that instead.
+ controlBarHeight = 30;
+ }
+
+ // set waveform element and dimensions
+ // Set the container to player's container if "container" option is
+ // not provided. If a waveform needs to be appended to your custom
+ // element, then use below option. For example:
+ // container: document.querySelector("#vjs-waveform")
+ if (surferOpts.container === undefined) {
+ surferOpts.container = this.player.el_;
+ }
+
+ // set the height of generated waveform if user has provided height
+ // from options. If height of waveform need to be customized then use
+ // option below. For example: waveformHeight: 30
+ if (surferOpts.waveformHeight === undefined) {
+ var playerHeight = rect.height;
+ surferOpts.height = playerHeight - controlBarHeight;
+ } else {
+ surferOpts.height = opts.waveformHeight;
+ }
+
+ // split channels
+ if (surferOpts.splitChannels && surferOpts.splitChannels === true) {
+ surferOpts.height /= 2;
+ }
+
+ // enable wavesurfer.js microphone plugin
+ if (this.liveMode === true) {
+ surferOpts.plugins = [_wavesurfer2.default.microphone.create(surferOpts)];
+ this.log('wavesurfer.js microphone plugin enabled.');
+ }
+
+ return surferOpts;
+ }
+
+ /**
+ * Start the players.
+ * @private
+ */
+
+ }, {
+ key: 'startPlayers',
+ value: function startPlayers() {
+ var options = this.player.options_.plugins.wavesurfer;
+ if (options.src !== undefined) {
+ if (this.surfer.microphone === undefined) {
+ // show loading spinner
+ this.player.loadingSpinner.show();
+
+ // start loading file
+ this.load(options.src, options.peaks);
+ } else {
+ // hide loading spinner
+ this.player.loadingSpinner.hide();
+
+ // connect microphone input to our waveform
+ options.wavesurfer = this.surfer;
+ }
+ } else {
+ // no valid src found, hide loading spinner
+ this.player.loadingSpinner.hide();
+ }
+ }
+
+ /**
+ * Starts or stops listening to events related to audio-playback.
+ *
+ * @param {boolean} enable - Start or stop listening to playback
+ * related events.
+ * @private
+ */
+
+ }, {
+ key: 'setupPlaybackEvents',
+ value: function setupPlaybackEvents(enable) {
+ if (enable === false) {
+ this.surfer.un('ready', this.surferReady);
+ this.surfer.un('audioprocess', this.surferProgress);
+ this.surfer.un('seek', this.surferSeek);
+ } else if (enable === true) {
+ this.surfer.on('ready', this.surferReady);
+ this.surfer.on('audioprocess', this.surferProgress);
+ this.surfer.on('seek', this.surferSeek);
+ }
+ }
+
+ /**
+ * Start loading waveform data.
+ *
+ * @param {string|blob|file} url - Either the URL of the audio file,
+ * a Blob or a File object.
+ * @param {string|?number[]|number[][]} peaks - Either the URL of peaks
+ * data for the audio file, or an array with peaks data.
+ */
+
+ }, {
+ key: 'load',
+ value: function load(url, peaks) {
+ var _this2 = this;
+
+ if (url instanceof Blob || url instanceof File) {
+ this.log('Loading object: ' + JSON.stringify(url));
+ this.surfer.loadBlob(url);
+ } else {
+ // load peak data from file
+ if (peaks !== undefined) {
+ if (Array.isArray(peaks)) {
+ // use supplied peaks data
+ this.log('Loading URL: ' + url);
+ this.surfer.load(url, peaks);
+ } else {
+ // load peak data from file
+ var ajaxOptions = {
+ url: peaks,
+ responseType: 'json'
+ };
+ // supply xhr options, if any
+ if (this.player.options_.plugins.wavesurfer.xhr !== undefined) {
+ ajaxOptions.xhr = this.player.options_.plugins.wavesurfer.xhr;
+ }
+ var ajax = _wavesurfer2.default.util.ajax(ajaxOptions);
+
+ ajax.on('success', function (data, e) {
+ _this2.log('Loaded Peak Data URL: ' + peaks);
+ _this2.surfer.load(url, data.data);
+ });
+ ajax.on('error', function (e) {
+ _this2.log('Unable to retrieve peak data from ' + peaks + '. Status code: ' + e.target.status, 'warn');
+ _this2.log('Loading URL: ' + url);
+ _this2.surfer.load(url);
+ });
+ }
+ } else {
+ // no peaks
+ this.log('Loading URL: ' + url);
+ this.surfer.load(url);
+ }
+ }
+ }
+
+ /**
+ * Start/resume playback or microphone.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ // show pause button
+ this.player.controlBar.playToggle.handlePlay();
+
+ if (this.liveMode) {
+ // start/resume microphone visualization
+ if (!this.surfer.microphone.active) {
+ this.log('Start microphone');
+ this.surfer.microphone.start();
+ } else {
+ // toggle paused
+ var paused = !this.surfer.microphone.paused;
+
+ if (paused) {
+ this.pause();
+ } else {
+ this.log('Resume microphone');
+ this.surfer.microphone.play();
+ }
+ }
+ } else {
+ this.log('Start playback');
+
+ // put video.js player UI in playback mode
+ this.player.play();
+
+ // start surfer playback
+ this.surfer.play();
+ }
+ }
+
+ /**
+ * Pauses playback or microphone visualization.
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ // show play button
+ if (this.player.controlBar.playToggle.contentEl()) {
+ this.player.controlBar.playToggle.handlePause();
+ }
+
+ if (this.liveMode) {
+ // pause microphone visualization
+ this.log('Pause microphone');
+ this.surfer.microphone.pause();
+ } else {
+ // pause playback
+ this.log('Pause playback');
+
+ if (!this.waveFinished) {
+ // pause wavesurfer playback
+ this.surfer.pause();
+ } else {
+ this.waveFinished = false;
+ }
+
+ this.setCurrentTime();
+ }
+ }
+
+ /**
+ * @private
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ if (this.surfer) {
+ if (this.liveMode && this.surfer.microphone) {
+ // destroy microphone plugin
+ this.surfer.microphone.destroy();
+ this.log('Destroyed microphone plugin');
+ }
+ // destroy wavesurfer instance
+ this.surfer.destroy();
+ }
+ if (this.textTracksEnabled) {
+ this.player.tech_.stopTrackingCurrentTime();
+ }
+ this.log('Destroyed plugin');
+ }
+
+ /**
+ * Indicates whether the plugin is destroyed or not.
+ *
+ * @return {boolean} Plugin destroyed or not.
+ */
+
+ }, {
+ key: 'isDestroyed',
+ value: function isDestroyed() {
+ return this.player && this.player.children() === null;
+ }
+
+ /**
+ * Remove the player and waveform.
+ */
+
+ }, {
+ key: 'destroy',
+ value: function destroy() {
+ this.player.dispose();
+ }
+
+ /**
+ * Set the volume level.
+ *
+ * @param {number} volume - The new volume level.
+ */
+
+ }, {
+ key: 'setVolume',
+ value: function setVolume(volume) {
+ if (volume !== undefined) {
+ this.log('Changing volume to: ' + volume);
+
+ // update player volume
+ this.player.volume(volume);
+ }
+ }
+
+ /**
+ * Save waveform image as data URI.
+ *
+ * The default format is 'image/png'. Other supported types are
+ * 'image/jpeg' and 'image/webp'.
+ *
+ * @param {string} [format=image/png] - String indicating the image format.
+ * @param {number} [quality=1] - Number between 0 and 1 indicating image
+ * quality if the requested type is 'image/jpeg' or 'image/webp'.
+ * @returns {string} The data URI of the image data.
+ */
+
+ }, {
+ key: 'exportImage',
+ value: function exportImage(format, quality) {
+ return this.surfer.exportImage(format, quality);
+ }
+
+ /**
+ * Change the audio output device.
+ *
+ * @param {string} sinkId - Id of audio output device.
+ */
+
+ }, {
+ key: 'setAudioOutput',
+ value: function setAudioOutput(deviceId) {
+ var _this3 = this;
+
+ if (deviceId) {
+ this.surfer.setSinkId(deviceId).then(function (result) {
+ // notify listeners
+ _this3.player.trigger('audioOutputReady');
+ }).catch(function (err) {
+ // notify listeners
+ _this3.player.trigger('error', err);
+
+ _this3.log(err, 'error');
+ });
+ }
+ }
+
+ /**
+ * Get the current time (in seconds) of the stream during playback.
+ *
+ * Returns 0 if no stream is available (yet).
+ */
+
+ }, {
+ key: 'getCurrentTime',
+ value: function getCurrentTime() {
+ var currentTime = this.surfer.getCurrentTime();
+ currentTime = isNaN(currentTime) ? 0 : currentTime;
+
+ return currentTime;
+ }
+
+ /**
+ * Updates the player's element displaying the current time.
+ *
+ * @param {number} [currentTime] - Current position of the playhead
+ * (in seconds).
+ * @param {number} [duration] - Duration of the waveform (in seconds).
+ * @private
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime, duration) {
+ if (currentTime === undefined) {
+ currentTime = this.surfer.getCurrentTime();
+ }
+
+ if (duration === undefined) {
+ duration = this.surfer.getDuration();
+ }
+
+ currentTime = isNaN(currentTime) ? 0 : currentTime;
+ duration = isNaN(duration) ? 0 : duration;
+ var time = Math.min(currentTime, duration);
+
+ // update current time display component
+ if (this.player.controlBar.currentTimeDisplay.contentEl()) {
+ this.player.controlBar.currentTimeDisplay.formattedTime_ = this.player.controlBar.currentTimeDisplay.contentEl().lastChild.textContent = (0, _formatTime2.default)(time, duration, this.msDisplayMax);
+ }
+
+ if (this.textTracksEnabled) {
+ // only needed for text tracks
+ this.player.tech_.setCurrentTime(currentTime);
+ }
+ }
+
+ /**
+ * Get the duration of the stream in seconds.
+ *
+ * Returns 0 if no stream is available (yet).
+ */
+
+ }, {
+ key: 'getDuration',
+ value: function getDuration() {
+ var duration = this.surfer.getDuration();
+ duration = isNaN(duration) ? 0 : duration;
+
+ return duration;
+ }
+
+ /**
+ * Updates the player's element displaying the duration time.
+ *
+ * @param {number} [duration] - Duration of the waveform (in seconds).
+ * @private
+ */
+
+ }, {
+ key: 'setDuration',
+ value: function setDuration(duration) {
+ if (duration === undefined) {
+ duration = this.surfer.getDuration();
+ }
+ duration = isNaN(duration) ? 0 : duration;
+
+ // update duration display component
+ if (this.player.controlBar.durationDisplay.contentEl()) {
+ this.player.controlBar.durationDisplay.formattedTime_ = this.player.controlBar.durationDisplay.contentEl().lastChild.textContent = (0, _formatTime2.default)(duration, duration, this.msDisplayMax);
+ }
+ }
+
+ /**
+ * Audio is loaded, decoded and the waveform is drawn.
+ *
+ * @fires waveReady
+ * @private
+ */
+
+ }, {
+ key: 'onWaveReady',
+ value: function onWaveReady() {
+ this.waveReady = true;
+ this.waveFinished = false;
+ this.liveMode = false;
+
+ this.log('Waveform is ready');
+ this.player.trigger('waveReady');
+
+ // update time display
+ this.setCurrentTime();
+ this.setDuration();
+
+ // enable and show play button
+ if (this.player.controlBar.playToggle.contentEl()) {
+ this.player.controlBar.playToggle.show();
+ }
+
+ // hide loading spinner
+ if (this.player.loadingSpinner.contentEl()) {
+ this.player.loadingSpinner.hide();
+ }
+
+ // auto-play when ready (if enabled)
+ if (this.player.options_.autoplay === true) {
+ this.play();
+ }
+ }
+
+ /**
+ * Fires when audio playback completed.
+ *
+ * @fires playbackFinish
+ * @private
+ */
+
+ }, {
+ key: 'onWaveFinish',
+ value: function onWaveFinish() {
+ var _this4 = this;
+
+ this.log('Finished playback');
+
+ // notify listeners
+ this.player.trigger('playbackFinish');
+
+ // check if loop is enabled
+ if (this.player.options_.loop === true) {
+ // reset waveform
+ this.surfer.stop();
+ this.play();
+ } else {
+ // finished
+ this.waveFinished = true;
+
+ // pause player
+ this.pause();
+
+ // show the replay state of play toggle
+ this.player.trigger('ended');
+
+ // this gets called once after the clip has ended and the user
+ // seeks so that we can change the replay button back to a play
+ // button
+ this.surfer.once('seek', function () {
+ _this4.player.controlBar.playToggle.removeClass('vjs-ended');
+ _this4.player.trigger('pause');
+ });
+ }
+ }
+
+ /**
+ * Fires continuously during audio playback.
+ *
+ * @param {number} time - Current time/location of the playhead.
+ * @private
+ */
+
+ }, {
+ key: 'onWaveProgress',
+ value: function onWaveProgress(time) {
+ this.setCurrentTime();
+ }
+
+ /**
+ * Fires during seeking of the waveform.
+ * @private
+ */
+
+ }, {
+ key: 'onWaveSeek',
+ value: function onWaveSeek() {
+ this.setCurrentTime();
+ }
+
+ /**
+ * Waveform error.
+ *
+ * @param {string} error - The wavesurfer error.
+ * @private
+ */
+
+ }, {
+ key: 'onWaveError',
+ value: function onWaveError(error) {
+ // notify listeners
+ this.player.trigger('error', error);
+
+ this.log(error, 'error');
+ }
+
+ /**
+ * Fired when the play toggle is clicked.
+ * @private
+ */
+
+ }, {
+ key: 'onPlayToggle',
+ value: function onPlayToggle() {
+ // workaround for video.js 6.3.1 and newer
+ if (this.player.controlBar.playToggle.hasClass('vjs-ended')) {
+ this.player.controlBar.playToggle.removeClass('vjs-ended');
+ }
+ if (this.surfer.isPlaying()) {
+ this.pause();
+ } else {
+ this.play();
+ }
+ }
+
+ /**
+ * Fired when the volume in the video.js player changes.
+ * @private
+ */
+
+ }, {
+ key: 'onVolumeChange',
+ value: function onVolumeChange() {
+ var volume = this.player.volume();
+ if (this.player.muted()) {
+ // muted volume
+ volume = 0;
+ }
+
+ // update wavesurfer.js volume
+ this.surfer.setVolume(volume);
+ }
+
+ /**
+ * Fired when the video.js player switches in or out of fullscreen mode.
+ * @private
+ */
+
+ }, {
+ key: 'onScreenChange',
+ value: function onScreenChange() {
+ var _this5 = this;
+
+ // execute with tiny delay so the player element completes
+ // rendering and correct dimensions are reported
+ var fullscreenDelay = this.player.setInterval(function () {
+ var isFullscreen = _this5.player.isFullscreen();
+ var newWidth = void 0,
+ newHeight = void 0;
+ if (!isFullscreen) {
+ // restore original dimensions
+ newWidth = _this5.originalWidth;
+ newHeight = _this5.originalHeight;
+ }
+
+ if (_this5.waveReady) {
+ if (_this5.liveMode && !_this5.surfer.microphone.active) {
+ // we're in live mode but the microphone hasn't been
+ // started yet
+ return;
+ }
+ // redraw
+ _this5.redrawWaveform(newWidth, newHeight);
+ }
+
+ // stop fullscreenDelay interval
+ _this5.player.clearInterval(fullscreenDelay);
+ }, 100);
+ }
+
+ /**
+ * Fired when the video.js player is resized.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'onResizeChange',
+ value: function onResizeChange() {
+ if (this.surfer !== undefined) {
+ // redraw waveform
+ this.redrawWaveform();
+ }
+ }
+
+ /**
+ * Redraw waveform.
+ *
+ * @param {number} [newWidth] - New width for the waveform.
+ * @param {number} [newHeight] - New height for the waveform.
+ * @private
+ */
+
+ }, {
+ key: 'redrawWaveform',
+ value: function redrawWaveform(newWidth, newHeight) {
+ if (!this.isDestroyed()) {
+ if (this.player.el_) {
+ var rect = this.player.el_.getBoundingClientRect();
+ if (newWidth === undefined) {
+ // get player width
+ newWidth = rect.width;
+ }
+ if (newHeight === undefined) {
+ // get player height
+ newHeight = rect.height;
+ }
+ }
+
+ // destroy old drawing
+ this.surfer.drawer.destroy();
+
+ // set new dimensions
+ this.surfer.params.width = newWidth;
+ this.surfer.params.height = newHeight - this.player.controlBar.height();
+
+ // redraw waveform
+ this.surfer.createDrawer();
+ this.surfer.drawer.wrapper.className = wavesurferClassName;
+ this.surfer.drawBuffer();
+
+ // make sure playhead is restored at right position
+ this.surfer.drawer.progress(this.surfer.backend.getPlayedPercents());
+ }
+ }
+
+ /**
+ * @private
+ */
+
+ }, {
+ key: 'log',
+ value: function log(args, logType) {
+ (0, _log3.default)(args, logType, this.debug);
+ }
+ }]);
+
+ return Wavesurfer;
+}(Plugin);
+
+// version nr is injected during build
+
+
+Wavesurfer.VERSION = "2.5.1";
+
+// register plugin once
+_video2.default.Wavesurfer = Wavesurfer;
+if (_video2.default.getPlugin('wavesurfer') === undefined) {
+ _video2.default.registerPlugin('wavesurfer', Wavesurfer);
+}
+
+module.exports = {
+ Wavesurfer: Wavesurfer
+};
+
+/***/ }),
+
+/***/ 0:
+/*!******************************************************************************!*\
+ !*** multi ./src/js/videojs.wavesurfer.js ./src/css/videojs.wavesurfer.scss ***!
+ \******************************************************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+__webpack_require__(/*! /Users/thijstriemstra/projects/videojs-wavesurfer/src/js/videojs.wavesurfer.js */"./src/js/videojs.wavesurfer.js");
+module.exports = __webpack_require__(/*! /Users/thijstriemstra/projects/videojs-wavesurfer/src/css/videojs.wavesurfer.scss */"./src/css/videojs.wavesurfer.scss");
+
+
+/***/ }),
+
+/***/ "video.js":
+/*!**************************!*\
+ !*** external "videojs" ***!
+ \**************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
+
+module.exports = __WEBPACK_EXTERNAL_MODULE_video_js__;
+
+/***/ }),
+
+/***/ "wavesurfer.js":
+/*!*****************************!*\
+ !*** external "WaveSurfer" ***!
+ \*****************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
+
+module.exports = __WEBPACK_EXTERNAL_MODULE_wavesurfer_js__;
+
+/***/ })
+
+/******/ });
+});
+//# sourceMappingURL=videojs.wavesurfer.js.map \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js.map b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js.map
new file mode 100644
index 0000000..6494f22
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.js.map
@@ -0,0 +1 @@
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if eval is allowed (see CSP)\n\tg = g || Function(\"return this\")() || (1, eval)(\"this\");\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","// extracted by mini-css-extract-plugin","/**\n * @file defaults.js\n * @since 2.0.0\n */\n\n// plugin defaults\nconst pluginDefaultOptions = {\n // Display console log messages.\n debug: false,\n // msDisplayMax indicates the number of seconds that is\n // considered the boundary value for displaying milliseconds\n // in the time controls. An audio clip with a total length of\n // 2 seconds and a msDisplayMax of 3 will use the format\n // M:SS:MMM. Clips longer than msDisplayMax will be displayed\n // as M:SS or HH:MM:SS.\n msDisplayMax: 3\n};\n\nexport default pluginDefaultOptions;\n","/**\n * @file format-time.js\n * @since 2.0.0\n */\n\n/**\n * Format seconds as a time string, H:MM:SS, M:SS or M:SS:MMM.\n *\n * Supplying a guide (in seconds) will force a number of leading zeros\n * to cover the length of the guide.\n *\n * @param {number} seconds - Number of seconds to be turned into a\n * string.\n * @param {number} guide - Number (in seconds) to model the string\n * after.\n * @param {number} msDisplayMax - Number (in milliseconds) to model the string\n * after.\n * @return {string} Time formatted as H:MM:SS, M:SS or M:SS:MMM, e.g.\n * 0:00:12.\n * @private\n */\nconst formatTime = function(seconds, guide, msDisplayMax) {\n // Default to using seconds as guide\n seconds = seconds < 0 ? 0 : seconds;\n guide = guide || seconds;\n let s = Math.floor(seconds % 60),\n m = Math.floor(seconds / 60 % 60),\n h = Math.floor(seconds / 3600),\n gm = Math.floor(guide / 60 % 60),\n gh = Math.floor(guide / 3600),\n ms = Math.floor((seconds - s) * 1000);\n\n // handle invalid times\n if (isNaN(seconds) || seconds === Infinity) {\n // '-' is false for all relational operators (e.g. <, >=) so this\n // setting will add the minimum number of fields specified by the\n // guide\n h = m = s = ms = '-';\n }\n\n // Check if we need to show milliseconds\n if (guide > 0 && guide < msDisplayMax) {\n if (ms < 100) {\n if (ms < 10) {\n ms = '00' + ms;\n } else {\n ms = '0' + ms;\n }\n }\n ms = ':' + ms;\n } else {\n ms = '';\n }\n\n // Check if we need to show hours\n h = (h > 0 || gh > 0) ? h + ':' : '';\n\n // If hours are showing, we may need to add a leading zero.\n // Always show at least one digit of minutes.\n m = (((h || gm >= 10) && m < 10) ? '0' + m : m) + ':';\n\n // Check if leading zero is need for seconds\n s = ((s < 10) ? '0' + s : s);\n\n return h + m + s + ms;\n};\n\nexport default formatTime;\n","/**\n * @file log.js\n * @since 2.0.0\n */\n\nconst ERROR = 'error';\nconst WARN = 'warn';\n\n/**\n * Log message (if the debug option is enabled).\n */\nconst log = function(args, logType, debug)\n{\n if (debug === true) {\n if (logType === ERROR) {\n videojs.log.error(args);\n } else if (logType === WARN) {\n videojs.log.warn(args);\n } else {\n videojs.log(args);\n }\n }\n};\n\nexport default log;\n","/**\n * @file videojs.wavesurfer.js\n *\n * The main file for the videojs-wavesurfer project.\n * MIT license: https://github.com/collab-project/videojs-wavesurfer/blob/master/LICENSE\n */\n\nimport log from './utils/log';\nimport formatTime from './utils/format-time';\nimport pluginDefaultOptions from './defaults';\nimport window from 'global/window';\n\nimport videojs from 'video.js';\nimport WaveSurfer from 'wavesurfer.js';\n\nconst Plugin = videojs.getPlugin('plugin');\n\nconst wavesurferClassName = 'vjs-wavedisplay';\n\n/**\n * Draw a waveform for audio and video files in a video.js player.\n *\n * @class Wavesurfer\n * @extends videojs.Plugin\n */\nclass Wavesurfer extends Plugin {\n /**\n * The constructor function for the class.\n *\n * @param {(videojs.Player|Object)} player\n * @param {Object} options - Player options.\n */\n constructor(player, options) {\n super(player, options);\n\n // add plugin style\n player.addClass('vjs-wavesurfer');\n\n // parse options\n options = videojs.mergeOptions(pluginDefaultOptions, options);\n this.waveReady = false;\n this.waveFinished = false;\n this.liveMode = false;\n this.debug = (options.debug.toString() === 'true');\n this.msDisplayMax = parseFloat(options.msDisplayMax);\n this.textTracksEnabled = (this.player.options_.tracks.length > 0);\n\n // microphone plugin\n if (options.src === 'live') {\n // check if the wavesurfer.js microphone plugin can be enabled\n if (WaveSurfer.microphone !== undefined) {\n // enable audio input from a microphone\n this.liveMode = true;\n this.waveReady = true;\n } else {\n this.onWaveError('Could not find wavesurfer.js ' +\n 'microphone plugin!');\n return;\n }\n }\n\n // wait until player ui is ready\n this.player.one('ready', this.initialize.bind(this));\n }\n\n /**\n * Player UI is ready: customize controls.\n */\n initialize() {\n // hide big play button\n this.player.bigPlayButton.hide();\n\n // the native controls don't work for this UI so disable\n // them no matter what\n if (this.player.usingNativeControls_ === true) {\n if (this.player.tech_.el_ !== undefined) {\n this.player.tech_.el_.controls = false;\n }\n }\n\n // controls\n if (this.player.options_.controls === true) {\n // make sure controlBar is showing\n this.player.controlBar.show();\n this.player.controlBar.el_.style.display = 'flex';\n\n // progress control isn't used by this plugin\n this.player.controlBar.progressControl.hide();\n\n // make sure time displays are visible\n let uiElements = [\n this.player.controlBar.currentTimeDisplay,\n this.player.controlBar.timeDivider,\n this.player.controlBar.durationDisplay\n ];\n uiElements.forEach((element) => {\n // ignore and show when essential elements have been disabled\n // by user\n if (element !== undefined) {\n element.el_.style.display = 'block';\n element.show();\n }\n });\n if (this.player.controlBar.remainingTimeDisplay !== undefined) {\n this.player.controlBar.remainingTimeDisplay.hide();\n }\n\n // handle play toggle interaction\n this.player.controlBar.playToggle.on(['tap', 'click'],\n this.onPlayToggle.bind(this));\n\n // disable play button until waveform is ready\n // (except when in live mode)\n if (!this.liveMode) {\n this.player.controlBar.playToggle.hide();\n }\n }\n\n // wavesurfer.js setup\n let mergedOptions = this.parseOptions(this.player.options_.plugins.wavesurfer);\n this.surfer = WaveSurfer.create(mergedOptions);\n this.surfer.on('error', this.onWaveError.bind(this));\n this.surfer.on('finish', this.onWaveFinish.bind(this));\n if (this.liveMode === true) {\n // listen for wavesurfer.js microphone plugin events\n this.surfer.microphone.on('deviceError', this.onWaveError.bind(this));\n }\n this.surferReady = this.onWaveReady.bind(this);\n this.surferProgress = this.onWaveProgress.bind(this);\n this.surferSeek = this.onWaveSeek.bind(this);\n\n // only listen to these wavesurfer.js playback events when not\n // in live mode\n if (!this.liveMode) {\n this.setupPlaybackEvents(true);\n }\n\n // video.js player events\n this.player.on('volumechange', this.onVolumeChange.bind(this));\n this.player.on('fullscreenchange', this.onScreenChange.bind(this));\n\n // make sure volume is muted when requested\n if (this.player.muted()) {\n this.setVolume(0);\n }\n\n // video.js fluid option\n if (this.player.options_.fluid === true) {\n // give wave element a classname so it can be styled\n this.surfer.drawer.wrapper.className = wavesurferClassName;\n // listen for window resize events\n this.responsiveWave = WaveSurfer.util.debounce(\n this.onResizeChange.bind(this), 150);\n window.addEventListener('resize', this.responsiveWave);\n }\n\n // text tracks\n if (this.textTracksEnabled) {\n // disable timeupdates\n this.player.controlBar.currentTimeDisplay.off(this.player, 'timeupdate',\n this.player.controlBar.currentTimeDisplay.throttledUpdateContent);\n\n // sets up an interval function to track current time\n // and trigger timeupdate every 250 milliseconds.\n // needed for text tracks\n this.player.tech_.trackCurrentTime();\n }\n\n // kick things off\n this.startPlayers();\n }\n\n /**\n * Initializes the waveform options.\n *\n * @param {Object} surferOpts - Plugin options.\n * @private\n */\n parseOptions(surferOpts) {\n let rect = this.player.el_.getBoundingClientRect();\n this.originalWidth = this.player.options_.width || rect.width;\n this.originalHeight = this.player.options_.height || rect.height;\n\n // controlbar\n let controlBarHeight = this.player.controlBar.height();\n if (this.player.options_.controls === true && controlBarHeight === 0) {\n // the dimensions of the controlbar are not known yet, but we\n // need it now, so we can calculate the height of the waveform.\n // The default height is 30px, so use that instead.\n controlBarHeight = 30;\n }\n\n // set waveform element and dimensions\n // Set the container to player's container if \"container\" option is\n // not provided. If a waveform needs to be appended to your custom\n // element, then use below option. For example:\n // container: document.querySelector(\"#vjs-waveform\")\n if (surferOpts.container === undefined) {\n surferOpts.container = this.player.el_;\n }\n\n // set the height of generated waveform if user has provided height\n // from options. If height of waveform need to be customized then use\n // option below. For example: waveformHeight: 30\n if (surferOpts.waveformHeight === undefined) {\n let playerHeight = rect.height;\n surferOpts.height = playerHeight - controlBarHeight;\n } else {\n surferOpts.height = opts.waveformHeight;\n }\n\n // split channels\n if (surferOpts.splitChannels && surferOpts.splitChannels === true) {\n surferOpts.height /= 2;\n }\n\n // enable wavesurfer.js microphone plugin\n if (this.liveMode === true) {\n surferOpts.plugins = [\n WaveSurfer.microphone.create(surferOpts)\n ];\n this.log('wavesurfer.js microphone plugin enabled.');\n }\n\n return surferOpts;\n }\n\n /**\n * Start the players.\n * @private\n */\n startPlayers() {\n let options = this.player.options_.plugins.wavesurfer;\n if (options.src !== undefined) {\n if (this.surfer.microphone === undefined) {\n // show loading spinner\n this.player.loadingSpinner.show();\n\n // start loading file\n this.load(options.src, options.peaks);\n } else {\n // hide loading spinner\n this.player.loadingSpinner.hide();\n\n // connect microphone input to our waveform\n options.wavesurfer = this.surfer;\n }\n } else {\n // no valid src found, hide loading spinner\n this.player.loadingSpinner.hide();\n }\n }\n\n /**\n * Starts or stops listening to events related to audio-playback.\n *\n * @param {boolean} enable - Start or stop listening to playback\n * related events.\n * @private\n */\n setupPlaybackEvents(enable) {\n if (enable === false) {\n this.surfer.un('ready', this.surferReady);\n this.surfer.un('audioprocess', this.surferProgress);\n this.surfer.un('seek', this.surferSeek);\n } else if (enable === true) {\n this.surfer.on('ready', this.surferReady);\n this.surfer.on('audioprocess', this.surferProgress);\n this.surfer.on('seek', this.surferSeek);\n }\n }\n\n /**\n * Start loading waveform data.\n *\n * @param {string|blob|file} url - Either the URL of the audio file,\n * a Blob or a File object.\n * @param {string|?number[]|number[][]} peaks - Either the URL of peaks\n * data for the audio file, or an array with peaks data.\n */\n load(url, peaks) {\n if (url instanceof Blob || url instanceof File) {\n this.log('Loading object: ' + JSON.stringify(url));\n this.surfer.loadBlob(url);\n } else {\n // load peak data from file\n if (peaks !== undefined) {\n if (Array.isArray(peaks)) {\n // use supplied peaks data\n this.log('Loading URL: ' + url);\n this.surfer.load(url, peaks);\n } else {\n // load peak data from file\n let ajaxOptions = {\n url: peaks,\n responseType: 'json'\n };\n // supply xhr options, if any\n if (this.player.options_.plugins.wavesurfer.xhr !== undefined) {\n ajaxOptions.xhr = this.player.options_.plugins.wavesurfer.xhr;\n }\n let ajax = WaveSurfer.util.ajax(ajaxOptions);\n\n ajax.on('success', (data, e) => {\n this.log('Loaded Peak Data URL: ' + peaks);\n this.surfer.load(url, data.data);\n });\n ajax.on('error', (e) => {\n this.log('Unable to retrieve peak data from ' + peaks +\n '. Status code: ' + e.target.status, 'warn');\n this.log('Loading URL: ' + url);\n this.surfer.load(url);\n });\n }\n } else {\n // no peaks\n this.log('Loading URL: ' + url);\n this.surfer.load(url);\n }\n }\n }\n\n /**\n * Start/resume playback or microphone.\n */\n play() {\n // show pause button\n this.player.controlBar.playToggle.handlePlay();\n\n if (this.liveMode) {\n // start/resume microphone visualization\n if (!this.surfer.microphone.active)\n {\n this.log('Start microphone');\n this.surfer.microphone.start();\n } else {\n // toggle paused\n let paused = !this.surfer.microphone.paused;\n\n if (paused) {\n this.pause();\n } else {\n this.log('Resume microphone');\n this.surfer.microphone.play();\n }\n }\n } else {\n this.log('Start playback');\n\n // put video.js player UI in playback mode\n this.player.play();\n\n // start surfer playback\n this.surfer.play();\n }\n }\n\n /**\n * Pauses playback or microphone visualization.\n */\n pause() {\n // show play button\n if (this.player.controlBar.playToggle.contentEl()) {\n this.player.controlBar.playToggle.handlePause();\n }\n\n if (this.liveMode) {\n // pause microphone visualization\n this.log('Pause microphone');\n this.surfer.microphone.pause();\n } else {\n // pause playback\n this.log('Pause playback');\n\n if (!this.waveFinished) {\n // pause wavesurfer playback\n this.surfer.pause();\n } else {\n this.waveFinished = false;\n }\n\n this.setCurrentTime();\n }\n }\n\n /**\n * @private\n */\n dispose() {\n if (this.surfer) {\n if (this.liveMode && this.surfer.microphone) {\n // destroy microphone plugin\n this.surfer.microphone.destroy();\n this.log('Destroyed microphone plugin');\n }\n // destroy wavesurfer instance\n this.surfer.destroy();\n }\n if (this.textTracksEnabled) {\n this.player.tech_.stopTrackingCurrentTime();\n }\n this.log('Destroyed plugin');\n }\n\n /**\n * Indicates whether the plugin is destroyed or not.\n *\n * @return {boolean} Plugin destroyed or not.\n */\n isDestroyed() {\n return this.player && (this.player.children() === null);\n }\n\n /**\n * Remove the player and waveform.\n */\n destroy() {\n this.player.dispose();\n }\n\n /**\n * Set the volume level.\n *\n * @param {number} volume - The new volume level.\n */\n setVolume(volume) {\n if (volume !== undefined) {\n this.log('Changing volume to: ' + volume);\n\n // update player volume\n this.player.volume(volume);\n }\n }\n\n /**\n * Save waveform image as data URI.\n *\n * The default format is 'image/png'. Other supported types are\n * 'image/jpeg' and 'image/webp'.\n *\n * @param {string} [format=image/png] - String indicating the image format.\n * @param {number} [quality=1] - Number between 0 and 1 indicating image\n * quality if the requested type is 'image/jpeg' or 'image/webp'.\n * @returns {string} The data URI of the image data.\n */\n exportImage(format, quality) {\n return this.surfer.exportImage(format, quality);\n }\n\n /**\n * Change the audio output device.\n *\n * @param {string} sinkId - Id of audio output device.\n */\n setAudioOutput(deviceId) {\n if (deviceId) {\n this.surfer.setSinkId(deviceId).then((result) => {\n // notify listeners\n this.player.trigger('audioOutputReady');\n }).catch((err) => {\n // notify listeners\n this.player.trigger('error', err);\n\n this.log(err, 'error');\n });\n }\n }\n\n /**\n * Get the current time (in seconds) of the stream during playback.\n *\n * Returns 0 if no stream is available (yet).\n */\n getCurrentTime() {\n let currentTime = this.surfer.getCurrentTime();\n currentTime = isNaN(currentTime) ? 0 : currentTime;\n\n return currentTime;\n }\n\n /**\n * Updates the player's element displaying the current time.\n *\n * @param {number} [currentTime] - Current position of the playhead\n * (in seconds).\n * @param {number} [duration] - Duration of the waveform (in seconds).\n * @private\n */\n setCurrentTime(currentTime, duration) {\n if (currentTime === undefined) {\n currentTime = this.surfer.getCurrentTime();\n }\n\n if (duration === undefined) {\n duration = this.surfer.getDuration();\n }\n\n currentTime = isNaN(currentTime) ? 0 : currentTime;\n duration = isNaN(duration) ? 0 : duration;\n let time = Math.min(currentTime, duration);\n\n // update current time display component\n if (this.player.controlBar.currentTimeDisplay.contentEl()) {\n this.player.controlBar.currentTimeDisplay.formattedTime_ =\n this.player.controlBar.currentTimeDisplay.contentEl().lastChild.textContent =\n formatTime(time, duration, this.msDisplayMax);\n }\n\n if (this.textTracksEnabled) {\n // only needed for text tracks\n this.player.tech_.setCurrentTime(currentTime);\n }\n }\n\n /**\n * Get the duration of the stream in seconds.\n *\n * Returns 0 if no stream is available (yet).\n */\n getDuration() {\n let duration = this.surfer.getDuration();\n duration = isNaN(duration) ? 0 : duration;\n\n return duration;\n }\n\n /**\n * Updates the player's element displaying the duration time.\n *\n * @param {number} [duration] - Duration of the waveform (in seconds).\n * @private\n */\n setDuration(duration) {\n if (duration === undefined) {\n duration = this.surfer.getDuration();\n }\n duration = isNaN(duration) ? 0 : duration;\n\n // update duration display component\n if (this.player.controlBar.durationDisplay.contentEl()) {\n this.player.controlBar.durationDisplay.formattedTime_ =\n this.player.controlBar.durationDisplay.contentEl().lastChild.textContent =\n formatTime(duration, duration, this.msDisplayMax);\n }\n }\n\n /**\n * Audio is loaded, decoded and the waveform is drawn.\n *\n * @fires waveReady\n * @private\n */\n onWaveReady() {\n this.waveReady = true;\n this.waveFinished = false;\n this.liveMode = false;\n\n this.log('Waveform is ready');\n this.player.trigger('waveReady');\n\n // update time display\n this.setCurrentTime();\n this.setDuration();\n\n // enable and show play button\n if (this.player.controlBar.playToggle.contentEl()) {\n this.player.controlBar.playToggle.show();\n }\n\n // hide loading spinner\n if (this.player.loadingSpinner.contentEl()) {\n this.player.loadingSpinner.hide();\n }\n\n // auto-play when ready (if enabled)\n if (this.player.options_.autoplay === true) {\n this.play();\n }\n }\n\n /**\n * Fires when audio playback completed.\n *\n * @fires playbackFinish\n * @private\n */\n onWaveFinish() {\n this.log('Finished playback');\n\n // notify listeners\n this.player.trigger('playbackFinish');\n\n // check if loop is enabled\n if (this.player.options_.loop === true) {\n // reset waveform\n this.surfer.stop();\n this.play();\n } else {\n // finished\n this.waveFinished = true;\n\n // pause player\n this.pause();\n\n // show the replay state of play toggle\n this.player.trigger('ended');\n\n // this gets called once after the clip has ended and the user\n // seeks so that we can change the replay button back to a play\n // button\n this.surfer.once('seek', () => {\n this.player.controlBar.playToggle.removeClass('vjs-ended');\n this.player.trigger('pause');\n });\n }\n }\n\n /**\n * Fires continuously during audio playback.\n *\n * @param {number} time - Current time/location of the playhead.\n * @private\n */\n onWaveProgress(time) {\n this.setCurrentTime();\n }\n\n /**\n * Fires during seeking of the waveform.\n * @private\n */\n onWaveSeek() {\n this.setCurrentTime();\n }\n\n /**\n * Waveform error.\n *\n * @param {string} error - The wavesurfer error.\n * @private\n */\n onWaveError(error) {\n // notify listeners\n this.player.trigger('error', error);\n\n this.log(error, 'error');\n }\n\n /**\n * Fired when the play toggle is clicked.\n * @private\n */\n onPlayToggle() {\n // workaround for video.js 6.3.1 and newer\n if (this.player.controlBar.playToggle.hasClass('vjs-ended')) {\n this.player.controlBar.playToggle.removeClass('vjs-ended');\n }\n if (this.surfer.isPlaying()) {\n this.pause();\n } else {\n this.play();\n }\n }\n\n /**\n * Fired when the volume in the video.js player changes.\n * @private\n */\n onVolumeChange() {\n let volume = this.player.volume();\n if (this.player.muted()) {\n // muted volume\n volume = 0;\n }\n\n // update wavesurfer.js volume\n this.surfer.setVolume(volume);\n }\n\n /**\n * Fired when the video.js player switches in or out of fullscreen mode.\n * @private\n */\n onScreenChange() {\n // execute with tiny delay so the player element completes\n // rendering and correct dimensions are reported\n var fullscreenDelay = this.player.setInterval(() => {\n let isFullscreen = this.player.isFullscreen();\n let newWidth, newHeight;\n if (!isFullscreen) {\n // restore original dimensions\n newWidth = this.originalWidth;\n newHeight = this.originalHeight;\n }\n\n if (this.waveReady) {\n if (this.liveMode && !this.surfer.microphone.active) {\n // we're in live mode but the microphone hasn't been\n // started yet\n return;\n }\n // redraw\n this.redrawWaveform(newWidth, newHeight);\n }\n\n // stop fullscreenDelay interval\n this.player.clearInterval(fullscreenDelay);\n\n }, 100);\n }\n\n /**\n * Fired when the video.js player is resized.\n *\n * @private\n */\n onResizeChange() {\n if (this.surfer !== undefined) {\n // redraw waveform\n this.redrawWaveform();\n }\n }\n\n /**\n * Redraw waveform.\n *\n * @param {number} [newWidth] - New width for the waveform.\n * @param {number} [newHeight] - New height for the waveform.\n * @private\n */\n redrawWaveform(newWidth, newHeight) {\n if (!this.isDestroyed()) {\n if (this.player.el_) {\n let rect = this.player.el_.getBoundingClientRect();\n if (newWidth === undefined) {\n // get player width\n newWidth = rect.width;\n }\n if (newHeight === undefined) {\n // get player height\n newHeight = rect.height;\n }\n }\n\n // destroy old drawing\n this.surfer.drawer.destroy();\n\n // set new dimensions\n this.surfer.params.width = newWidth;\n this.surfer.params.height = newHeight - this.player.controlBar.height();\n\n // redraw waveform\n this.surfer.createDrawer();\n this.surfer.drawer.wrapper.className = wavesurferClassName;\n this.surfer.drawBuffer();\n\n // make sure playhead is restored at right position\n this.surfer.drawer.progress(this.surfer.backend.getPlayedPercents());\n }\n }\n\n /**\n * @private\n */\n log(args, logType) {\n log(args, logType, this.debug);\n }\n}\n\n// version nr is injected during build\nWavesurfer.VERSION = __VERSION__;\n\n// register plugin once\nvideojs.Wavesurfer = Wavesurfer;\nif (videojs.getPlugin('wavesurfer') === undefined) {\n videojs.registerPlugin('wavesurfer', Wavesurfer);\n}\n\nmodule.exports = {\n Wavesurfer\n};\n","module.exports = __WEBPACK_EXTERNAL_MODULE_video_js__;","module.exports = __WEBPACK_EXTERNAL_MODULE_wavesurfer_js__;"],"sourceRoot":""} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js
new file mode 100644
index 0000000..fb97f62
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js
@@ -0,0 +1,9 @@
+/*!
+ * videojs-wavesurfer
+ * @version 2.5.1
+ * @see https://github.com/collab-project/videojs-wavesurfer
+ * @copyright 2014-2018 Collab
+ * @license MIT
+ */
+!function(e,r){"object"==typeof exports&&"object"==typeof module?module.exports=r(require("videojs"),require("WaveSurfer")):"function"==typeof define&&define.amd?define("VideojsWavesurfer",["videojs","WaveSurfer"],r):"object"==typeof exports?exports.VideojsWavesurfer=r(require("videojs"),require("WaveSurfer")):e.VideojsWavesurfer=r(e.videojs,e.WaveSurfer)}(window,function(e,r){return function(e){var r={};function t(i){if(r[i])return r[i].exports;var s=r[i]={i:i,l:!1,exports:{}};return e[i].call(s.exports,s,s.exports,t),s.l=!0,s.exports}return t.m=e,t.c=r,t.d=function(e,r,i){t.o(e,r)||Object.defineProperty(e,r,{enumerable:!0,get:i})},t.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},t.t=function(e,r){if(1&r&&(e=t(e)),8&r)return e;if(4&r&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(t.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&r&&"string"!=typeof e)for(var s in e)t.d(i,s,function(r){return e[r]}.bind(null,s));return i},t.n=function(e){var r=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(r,"a",r),r},t.o=function(e,r){return Object.prototype.hasOwnProperty.call(e,r)},t.p="",t(t.s=0)}([function(e,r,t){t(1),e.exports=t(9)},function(e,r,t){"use strict";var i=function(){function e(e,r){for(var t=0;t<r.length;t++){var i=r[t];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}return function(r,t,i){return t&&e(r.prototype,t),i&&e(r,i),r}}(),s=h(t(2)),o=h(t(3)),a=h(t(4)),n=h(t(5)),l=h(t(7)),u=h(t(8));function h(e){return e&&e.__esModule?e:{default:e}}function p(e,r){if(!e)throw new ReferenceError("this hasn't been initialised - 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Status code: "+i.target.status,"warn"),t.log("Loading URL: "+e),t.surfer.load(e)})}else this.log("Loading URL: "+e),this.surfer.load(e)}},{key:"play",value:function(){(this.player.controlBar.playToggle.handlePlay(),this.liveMode)?this.surfer.microphone.active?!this.surfer.microphone.paused?this.pause():(this.log("Resume microphone"),this.surfer.microphone.play()):(this.log("Start microphone"),this.surfer.microphone.start()):(this.log("Start playback"),this.player.play(),this.surfer.play())}},{key:"pause",value:function(){this.player.controlBar.playToggle.contentEl()&&this.player.controlBar.playToggle.handlePause(),this.liveMode?(this.log("Pause microphone"),this.surfer.microphone.pause()):(this.log("Pause playback"),this.waveFinished?this.waveFinished=!1:this.surfer.pause(),this.setCurrentTime())}},{key:"dispose",value:function(){this.surfer&&(this.liveMode&&this.surfer.microphone&&(this.surfer.microphone.destroy(),this.log("Destroyed microphone 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t=Math.min(e,r);this.player.controlBar.currentTimeDisplay.contentEl()&&(this.player.controlBar.currentTimeDisplay.formattedTime_=this.player.controlBar.currentTimeDisplay.contentEl().lastChild.textContent=(0,o.default)(t,r,this.msDisplayMax)),this.textTracksEnabled&&this.player.tech_.setCurrentTime(e)}},{key:"getDuration",value:function(){var e=this.surfer.getDuration();return e=isNaN(e)?0:e}},{key:"setDuration",value:function(e){void 0===e&&(e=this.surfer.getDuration()),e=isNaN(e)?0:e,this.player.controlBar.durationDisplay.contentEl()&&(this.player.controlBar.durationDisplay.formattedTime_=this.player.controlBar.durationDisplay.contentEl().lastChild.textContent=(0,o.default)(e,e,this.msDisplayMax))}},{key:"onWaveReady",value:function(){this.waveReady=!0,this.waveFinished=!1,this.liveMode=!1,this.log("Waveform is 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+//# sourceMappingURL=videojs.wavesurfer.min.js.map \ No newline at end of file
diff --git a/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js.map b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js.map
new file mode 100644
index 0000000..f5219af
--- /dev/null
+++ b/assets/netcut/lib/videojs-wavesurfer/videojs.wavesurfer.min.js.map
@@ -0,0 +1 @@
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'global/window';\n\nimport videojs from 'video.js';\nimport WaveSurfer from 'wavesurfer.js';\n\nconst Plugin = videojs.getPlugin('plugin');\n\nconst wavesurferClassName = 'vjs-wavedisplay';\n\n/**\n * Draw a waveform for audio and video files in a video.js player.\n *\n * @class Wavesurfer\n * @extends videojs.Plugin\n */\nclass Wavesurfer extends Plugin {\n /**\n * The constructor function for the class.\n *\n * @param {(videojs.Player|Object)} player\n * @param {Object} options - Player options.\n */\n constructor(player, options) {\n super(player, options);\n\n // add plugin style\n player.addClass('vjs-wavesurfer');\n\n // parse options\n options = videojs.mergeOptions(pluginDefaultOptions, options);\n this.waveReady = false;\n this.waveFinished = false;\n this.liveMode = false;\n this.debug = (options.debug.toString() === 'true');\n this.msDisplayMax = parseFloat(options.msDisplayMax);\n this.textTracksEnabled = (this.player.options_.tracks.length > 0);\n\n // microphone plugin\n if (options.src === 'live') {\n // check if the wavesurfer.js microphone plugin can be enabled\n if (WaveSurfer.microphone !== undefined) {\n // enable audio input from a microphone\n this.liveMode = true;\n this.waveReady = true;\n } else {\n this.onWaveError('Could not find wavesurfer.js ' +\n 'microphone plugin!');\n return;\n }\n }\n\n // wait until player ui is ready\n this.player.one('ready', this.initialize.bind(this));\n }\n\n /**\n * Player UI is ready: customize controls.\n */\n initialize() {\n // hide big play button\n this.player.bigPlayButton.hide();\n\n // the native controls don't work for this UI so disable\n // them no matter what\n if (this.player.usingNativeControls_ === true) {\n if (this.player.tech_.el_ !== undefined) {\n this.player.tech_.el_.controls = false;\n }\n }\n\n // controls\n if (this.player.options_.controls === true) {\n // make sure controlBar is showing\n this.player.controlBar.show();\n this.player.controlBar.el_.style.display = 'flex';\n\n // progress control isn't used by this plugin\n this.player.controlBar.progressControl.hide();\n\n // make sure time displays are visible\n let uiElements = [\n this.player.controlBar.currentTimeDisplay,\n this.player.controlBar.timeDivider,\n this.player.controlBar.durationDisplay\n ];\n uiElements.forEach((element) => {\n // ignore and show when essential elements have been disabled\n // by user\n if (element !== undefined) {\n element.el_.style.display = 'block';\n element.show();\n }\n });\n if (this.player.controlBar.remainingTimeDisplay !== undefined) {\n this.player.controlBar.remainingTimeDisplay.hide();\n }\n\n // handle play toggle interaction\n this.player.controlBar.playToggle.on(['tap', 'click'],\n this.onPlayToggle.bind(this));\n\n // disable play button until waveform is ready\n // (except when in live mode)\n if (!this.liveMode) {\n this.player.controlBar.playToggle.hide();\n }\n }\n\n // wavesurfer.js setup\n let mergedOptions = this.parseOptions(this.player.options_.plugins.wavesurfer);\n this.surfer = WaveSurfer.create(mergedOptions);\n this.surfer.on('error', this.onWaveError.bind(this));\n this.surfer.on('finish', this.onWaveFinish.bind(this));\n if (this.liveMode === true) {\n // listen for wavesurfer.js microphone plugin events\n this.surfer.microphone.on('deviceError', this.onWaveError.bind(this));\n }\n this.surferReady = this.onWaveReady.bind(this);\n this.surferProgress = this.onWaveProgress.bind(this);\n this.surferSeek = this.onWaveSeek.bind(this);\n\n // only listen to these wavesurfer.js playback events when not\n // in live mode\n if (!this.liveMode) {\n this.setupPlaybackEvents(true);\n }\n\n // video.js player events\n this.player.on('volumechange', this.onVolumeChange.bind(this));\n this.player.on('fullscreenchange', this.onScreenChange.bind(this));\n\n // make sure volume is muted when requested\n if (this.player.muted()) {\n this.setVolume(0);\n }\n\n // video.js fluid option\n if (this.player.options_.fluid === true) {\n // give wave element a classname so it can be styled\n this.surfer.drawer.wrapper.className = wavesurferClassName;\n // listen for window resize events\n this.responsiveWave = WaveSurfer.util.debounce(\n this.onResizeChange.bind(this), 150);\n window.addEventListener('resize', this.responsiveWave);\n }\n\n // text tracks\n if (this.textTracksEnabled) {\n // disable timeupdates\n this.player.controlBar.currentTimeDisplay.off(this.player, 'timeupdate',\n this.player.controlBar.currentTimeDisplay.throttledUpdateContent);\n\n // sets up an interval function to track current time\n // and trigger timeupdate every 250 milliseconds.\n // needed for text tracks\n this.player.tech_.trackCurrentTime();\n }\n\n // kick things off\n this.startPlayers();\n }\n\n /**\n * Initializes the waveform options.\n *\n * @param {Object} surferOpts - Plugin options.\n * @private\n */\n parseOptions(surferOpts) {\n let rect = this.player.el_.getBoundingClientRect();\n this.originalWidth = this.player.options_.width || rect.width;\n this.originalHeight = this.player.options_.height || rect.height;\n\n // controlbar\n let controlBarHeight = this.player.controlBar.height();\n if (this.player.options_.controls === true && controlBarHeight === 0) {\n // the dimensions of the controlbar are not known yet, but we\n // need it now, so we can calculate the height of the waveform.\n // The default height is 30px, so use that instead.\n controlBarHeight = 30;\n }\n\n // set waveform element and dimensions\n // Set the container to player's container if \"container\" option is\n // not provided. If a waveform needs to be appended to your custom\n // element, then use below option. For example:\n // container: document.querySelector(\"#vjs-waveform\")\n if (surferOpts.container === undefined) {\n surferOpts.container = this.player.el_;\n }\n\n // set the height of generated waveform if user has provided height\n // from options. If height of waveform need to be customized then use\n // option below. For example: waveformHeight: 30\n if (surferOpts.waveformHeight === undefined) {\n let playerHeight = rect.height;\n surferOpts.height = playerHeight - controlBarHeight;\n } else {\n surferOpts.height = opts.waveformHeight;\n }\n\n // split channels\n if (surferOpts.splitChannels && surferOpts.splitChannels === true) {\n surferOpts.height /= 2;\n }\n\n // enable wavesurfer.js microphone plugin\n if (this.liveMode === true) {\n surferOpts.plugins = [\n WaveSurfer.microphone.create(surferOpts)\n ];\n this.log('wavesurfer.js microphone plugin enabled.');\n }\n\n return surferOpts;\n }\n\n /**\n * Start the players.\n * @private\n */\n startPlayers() {\n let options = this.player.options_.plugins.wavesurfer;\n if (options.src !== undefined) {\n if (this.surfer.microphone === undefined) {\n // show loading spinner\n this.player.loadingSpinner.show();\n\n // start loading file\n this.load(options.src, options.peaks);\n } else {\n // hide loading spinner\n this.player.loadingSpinner.hide();\n\n // connect microphone input to our waveform\n options.wavesurfer = this.surfer;\n }\n } else {\n // no valid src found, hide loading spinner\n this.player.loadingSpinner.hide();\n }\n }\n\n /**\n * Starts or stops listening to events related to audio-playback.\n *\n * @param {boolean} enable - Start or stop listening to playback\n * related events.\n * @private\n */\n setupPlaybackEvents(enable) {\n if (enable === false) {\n this.surfer.un('ready', this.surferReady);\n this.surfer.un('audioprocess', this.surferProgress);\n this.surfer.un('seek', this.surferSeek);\n } else if (enable === true) {\n this.surfer.on('ready', this.surferReady);\n this.surfer.on('audioprocess', this.surferProgress);\n this.surfer.on('seek', this.surferSeek);\n }\n }\n\n /**\n * Start loading waveform data.\n *\n * @param {string|blob|file} url - Either the URL of the audio file,\n * a Blob or a File object.\n * @param {string|?number[]|number[][]} peaks - Either the URL of peaks\n * data for the audio file, or an array with peaks data.\n */\n load(url, peaks) {\n if (url instanceof Blob || url instanceof File) {\n this.log('Loading object: ' + JSON.stringify(url));\n this.surfer.loadBlob(url);\n } else {\n // load peak data from file\n if (peaks !== undefined) {\n if (Array.isArray(peaks)) {\n // use supplied peaks data\n this.log('Loading URL: ' + url);\n this.surfer.load(url, peaks);\n } else {\n // load peak data from file\n let ajaxOptions = {\n url: peaks,\n responseType: 'json'\n };\n // supply xhr options, if any\n if (this.player.options_.plugins.wavesurfer.xhr !== undefined) {\n ajaxOptions.xhr = this.player.options_.plugins.wavesurfer.xhr;\n }\n let ajax = WaveSurfer.util.ajax(ajaxOptions);\n\n ajax.on('success', (data, e) => {\n this.log('Loaded Peak Data URL: ' + peaks);\n this.surfer.load(url, data.data);\n });\n ajax.on('error', (e) => {\n this.log('Unable to retrieve peak data from ' + peaks +\n '. Status code: ' + e.target.status, 'warn');\n this.log('Loading URL: ' + url);\n this.surfer.load(url);\n });\n }\n } else {\n // no peaks\n this.log('Loading URL: ' + url);\n this.surfer.load(url);\n }\n }\n }\n\n /**\n * Start/resume playback or microphone.\n */\n play() {\n // show pause button\n this.player.controlBar.playToggle.handlePlay();\n\n if (this.liveMode) {\n // start/resume microphone visualization\n if (!this.surfer.microphone.active)\n {\n this.log('Start microphone');\n this.surfer.microphone.start();\n } else {\n // toggle paused\n let paused = !this.surfer.microphone.paused;\n\n if (paused) {\n this.pause();\n } else {\n this.log('Resume microphone');\n this.surfer.microphone.play();\n }\n }\n } else {\n this.log('Start playback');\n\n // put video.js player UI in playback mode\n this.player.play();\n\n // start surfer playback\n this.surfer.play();\n }\n }\n\n /**\n * Pauses playback or microphone visualization.\n */\n pause() {\n // show play button\n if (this.player.controlBar.playToggle.contentEl()) {\n this.player.controlBar.playToggle.handlePause();\n }\n\n if (this.liveMode) {\n // pause microphone visualization\n this.log('Pause microphone');\n this.surfer.microphone.pause();\n } else {\n // pause playback\n this.log('Pause playback');\n\n if (!this.waveFinished) {\n // pause wavesurfer playback\n this.surfer.pause();\n } else {\n this.waveFinished = false;\n }\n\n this.setCurrentTime();\n }\n }\n\n /**\n * @private\n */\n dispose() {\n if (this.surfer) {\n if (this.liveMode && this.surfer.microphone) {\n // destroy microphone plugin\n this.surfer.microphone.destroy();\n this.log('Destroyed microphone plugin');\n }\n // destroy wavesurfer instance\n this.surfer.destroy();\n }\n if (this.textTracksEnabled) {\n this.player.tech_.stopTrackingCurrentTime();\n }\n this.log('Destroyed plugin');\n }\n\n /**\n * Indicates whether the plugin is destroyed or not.\n *\n * @return {boolean} Plugin destroyed or not.\n */\n isDestroyed() {\n return this.player && (this.player.children() === null);\n }\n\n /**\n * Remove the player and waveform.\n */\n destroy() {\n this.player.dispose();\n }\n\n /**\n * Set the volume level.\n *\n * @param {number} volume - The new volume level.\n */\n setVolume(volume) {\n if (volume !== undefined) {\n this.log('Changing volume to: ' + volume);\n\n // update player volume\n this.player.volume(volume);\n }\n }\n\n /**\n * Save waveform image as data URI.\n *\n * The default format is 'image/png'. Other supported types are\n * 'image/jpeg' and 'image/webp'.\n *\n * @param {string} [format=image/png] - String indicating the image format.\n * @param {number} [quality=1] - Number between 0 and 1 indicating image\n * quality if the requested type is 'image/jpeg' or 'image/webp'.\n * @returns {string} The data URI of the image data.\n */\n exportImage(format, quality) {\n return this.surfer.exportImage(format, quality);\n }\n\n /**\n * Change the audio output device.\n *\n * @param {string} sinkId - Id of audio output device.\n */\n setAudioOutput(deviceId) {\n if (deviceId) {\n this.surfer.setSinkId(deviceId).then((result) => {\n // notify listeners\n this.player.trigger('audioOutputReady');\n }).catch((err) => {\n // notify listeners\n this.player.trigger('error', err);\n\n this.log(err, 'error');\n });\n }\n }\n\n /**\n * Get the current time (in seconds) of the stream during playback.\n *\n * Returns 0 if no stream is available (yet).\n */\n getCurrentTime() {\n let currentTime = this.surfer.getCurrentTime();\n currentTime = isNaN(currentTime) ? 0 : currentTime;\n\n return currentTime;\n }\n\n /**\n * Updates the player's element displaying the current time.\n *\n * @param {number} [currentTime] - Current position of the playhead\n * (in seconds).\n * @param {number} [duration] - Duration of the waveform (in seconds).\n * @private\n */\n setCurrentTime(currentTime, duration) {\n if (currentTime === undefined) {\n currentTime = this.surfer.getCurrentTime();\n }\n\n if (duration === undefined) {\n duration = this.surfer.getDuration();\n }\n\n currentTime = isNaN(currentTime) ? 0 : currentTime;\n duration = isNaN(duration) ? 0 : duration;\n let time = Math.min(currentTime, duration);\n\n // update current time display component\n if (this.player.controlBar.currentTimeDisplay.contentEl()) {\n this.player.controlBar.currentTimeDisplay.formattedTime_ =\n this.player.controlBar.currentTimeDisplay.contentEl().lastChild.textContent =\n formatTime(time, duration, this.msDisplayMax);\n }\n\n if (this.textTracksEnabled) {\n // only needed for text tracks\n this.player.tech_.setCurrentTime(currentTime);\n }\n }\n\n /**\n * Get the duration of the stream in seconds.\n *\n * Returns 0 if no stream is available (yet).\n */\n getDuration() {\n let duration = this.surfer.getDuration();\n duration = isNaN(duration) ? 0 : duration;\n\n return duration;\n }\n\n /**\n * Updates the player's element displaying the duration time.\n *\n * @param {number} [duration] - Duration of the waveform (in seconds).\n * @private\n */\n setDuration(duration) {\n if (duration === undefined) {\n duration = this.surfer.getDuration();\n }\n duration = isNaN(duration) ? 0 : duration;\n\n // update duration display component\n if (this.player.controlBar.durationDisplay.contentEl()) {\n this.player.controlBar.durationDisplay.formattedTime_ =\n this.player.controlBar.durationDisplay.contentEl().lastChild.textContent =\n formatTime(duration, duration, this.msDisplayMax);\n }\n }\n\n /**\n * Audio is loaded, decoded and the waveform is drawn.\n *\n * @fires waveReady\n * @private\n */\n onWaveReady() {\n this.waveReady = true;\n this.waveFinished = false;\n this.liveMode = false;\n\n this.log('Waveform is ready');\n this.player.trigger('waveReady');\n\n // update time display\n this.setCurrentTime();\n this.setDuration();\n\n // enable and show play button\n if (this.player.controlBar.playToggle.contentEl()) {\n this.player.controlBar.playToggle.show();\n }\n\n // hide loading spinner\n if (this.player.loadingSpinner.contentEl()) {\n this.player.loadingSpinner.hide();\n }\n\n // auto-play when ready (if enabled)\n if (this.player.options_.autoplay === true) {\n this.play();\n }\n }\n\n /**\n * Fires when audio playback completed.\n *\n * @fires playbackFinish\n * @private\n */\n onWaveFinish() {\n this.log('Finished playback');\n\n // notify listeners\n this.player.trigger('playbackFinish');\n\n // check if loop is enabled\n if (this.player.options_.loop === true) {\n // reset waveform\n this.surfer.stop();\n this.play();\n } else {\n // finished\n this.waveFinished = true;\n\n // pause player\n this.pause();\n\n // show the replay state of play toggle\n this.player.trigger('ended');\n\n // this gets called once after the clip has ended and the user\n // seeks so that we can change the replay button back to a play\n // button\n this.surfer.once('seek', () => {\n this.player.controlBar.playToggle.removeClass('vjs-ended');\n this.player.trigger('pause');\n });\n }\n }\n\n /**\n * Fires continuously during audio playback.\n *\n * @param {number} time - Current time/location of the playhead.\n * @private\n */\n onWaveProgress(time) {\n this.setCurrentTime();\n }\n\n /**\n * Fires during seeking of the waveform.\n * @private\n */\n onWaveSeek() {\n this.setCurrentTime();\n }\n\n /**\n * Waveform error.\n *\n * @param {string} error - The wavesurfer error.\n * @private\n */\n onWaveError(error) {\n // notify listeners\n this.player.trigger('error', error);\n\n this.log(error, 'error');\n }\n\n /**\n * Fired when the play toggle is clicked.\n * @private\n */\n onPlayToggle() {\n // workaround for video.js 6.3.1 and newer\n if (this.player.controlBar.playToggle.hasClass('vjs-ended')) {\n this.player.controlBar.playToggle.removeClass('vjs-ended');\n }\n if (this.surfer.isPlaying()) {\n this.pause();\n } else {\n this.play();\n }\n }\n\n /**\n * Fired when the volume in the video.js player changes.\n * @private\n */\n onVolumeChange() {\n let volume = this.player.volume();\n if (this.player.muted()) {\n // muted volume\n volume = 0;\n }\n\n // update wavesurfer.js volume\n this.surfer.setVolume(volume);\n }\n\n /**\n * Fired when the video.js player switches in or out of fullscreen mode.\n * @private\n */\n onScreenChange() {\n // execute with tiny delay so the player element completes\n // rendering and correct dimensions are reported\n var fullscreenDelay = this.player.setInterval(() => {\n let isFullscreen = this.player.isFullscreen();\n let newWidth, newHeight;\n if (!isFullscreen) {\n // restore original dimensions\n newWidth = this.originalWidth;\n newHeight = this.originalHeight;\n }\n\n if (this.waveReady) {\n if (this.liveMode && !this.surfer.microphone.active) {\n // we're in live mode but the microphone hasn't been\n // started yet\n return;\n }\n // redraw\n this.redrawWaveform(newWidth, newHeight);\n }\n\n // stop fullscreenDelay interval\n this.player.clearInterval(fullscreenDelay);\n\n }, 100);\n }\n\n /**\n * Fired when the video.js player is resized.\n *\n * @private\n */\n onResizeChange() {\n if (this.surfer !== undefined) {\n // redraw waveform\n this.redrawWaveform();\n }\n }\n\n /**\n * Redraw waveform.\n *\n * @param {number} [newWidth] - New width for the waveform.\n * @param {number} [newHeight] - New height for the waveform.\n * @private\n */\n redrawWaveform(newWidth, newHeight) {\n if (!this.isDestroyed()) {\n if (this.player.el_) {\n let rect = this.player.el_.getBoundingClientRect();\n if (newWidth === undefined) {\n // get player width\n newWidth = rect.width;\n }\n if (newHeight === undefined) {\n // get player height\n newHeight = rect.height;\n }\n }\n\n // destroy old drawing\n this.surfer.drawer.destroy();\n\n // set new dimensions\n this.surfer.params.width = newWidth;\n this.surfer.params.height = newHeight - this.player.controlBar.height();\n\n // redraw waveform\n this.surfer.createDrawer();\n this.surfer.drawer.wrapper.className = wavesurferClassName;\n this.surfer.drawBuffer();\n\n // make sure playhead is restored at right position\n this.surfer.drawer.progress(this.surfer.backend.getPlayedPercents());\n }\n }\n\n /**\n * @private\n */\n log(args, logType) {\n log(args, logType, this.debug);\n }\n}\n\n// version nr is injected during build\nWavesurfer.VERSION = __VERSION__;\n\n// register plugin once\nvideojs.Wavesurfer = Wavesurfer;\nif (videojs.getPlugin('wavesurfer') === undefined) {\n videojs.registerPlugin('wavesurfer', Wavesurfer);\n}\n\nmodule.exports = {\n Wavesurfer\n};\n","/**\n * @file log.js\n * @since 2.0.0\n */\n\nconst ERROR = 'error';\nconst WARN = 'warn';\n\n/**\n * Log message (if the debug option is enabled).\n */\nconst log = function(args, logType, debug)\n{\n if (debug === true) {\n if (logType === ERROR) {\n videojs.log.error(args);\n } else if (logType === WARN) {\n videojs.log.warn(args);\n } else {\n videojs.log(args);\n }\n }\n};\n\nexport default log;\n","/**\n * @file format-time.js\n * @since 2.0.0\n */\n\n/**\n * Format seconds as a time string, H:MM:SS, M:SS or M:SS:MMM.\n *\n * Supplying a guide (in seconds) will force a number of leading zeros\n * to cover the length of the guide.\n *\n * @param {number} seconds - Number of seconds to be turned into a\n * string.\n * @param {number} guide - Number (in seconds) to model the string\n * after.\n * @param {number} msDisplayMax - Number (in milliseconds) to model the string\n * after.\n * @return {string} Time formatted as H:MM:SS, M:SS or M:SS:MMM, e.g.\n * 0:00:12.\n * @private\n */\nconst formatTime = function(seconds, guide, msDisplayMax) {\n // Default to using seconds as guide\n seconds = seconds < 0 ? 0 : seconds;\n guide = guide || seconds;\n let s = Math.floor(seconds % 60),\n m = Math.floor(seconds / 60 % 60),\n h = Math.floor(seconds / 3600),\n gm = Math.floor(guide / 60 % 60),\n gh = Math.floor(guide / 3600),\n ms = Math.floor((seconds - s) * 1000);\n\n // handle invalid times\n if (isNaN(seconds) || seconds === Infinity) {\n // '-' is false for all relational operators (e.g. <, >=) so this\n // setting will add the minimum number of fields specified by the\n // guide\n h = m = s = ms = '-';\n }\n\n // Check if we need to show milliseconds\n if (guide > 0 && guide < msDisplayMax) {\n if (ms < 100) {\n if (ms < 10) {\n ms = '00' + ms;\n } else {\n ms = '0' + ms;\n }\n }\n ms = ':' + ms;\n } else {\n ms = '';\n }\n\n // Check if we need to show hours\n h = (h > 0 || gh > 0) ? h + ':' : '';\n\n // If hours are showing, we may need to add a leading zero.\n // Always show at least one digit of minutes.\n m = (((h || gm >= 10) && m < 10) ? '0' + m : m) + ':';\n\n // Check if leading zero is need for seconds\n s = ((s < 10) ? '0' + s : s);\n\n return h + m + s + ms;\n};\n\nexport default formatTime;\n","/**\n * @file defaults.js\n * @since 2.0.0\n */\n\n// plugin defaults\nconst pluginDefaultOptions = {\n // Display console log messages.\n debug: false,\n // msDisplayMax indicates the number of seconds that is\n // considered the boundary value for displaying milliseconds\n // in the time controls. An audio clip with a total length of\n // 2 seconds and a msDisplayMax of 3 will use the format\n // M:SS:MMM. Clips longer than msDisplayMax will be displayed\n // as M:SS or HH:MM:SS.\n msDisplayMax: 3\n};\n\nexport default pluginDefaultOptions;\n","var win;\n\nif (typeof window !== \"undefined\") {\n win = window;\n} else if (typeof global !== \"undefined\") {\n win = global;\n} else if (typeof self !== \"undefined\"){\n win = self;\n} else {\n win = {};\n}\n\nmodule.exports = win;\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || Function(\"return this\")() || (1, eval)(\"this\");\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","module.exports = __WEBPACK_EXTERNAL_MODULE__7__;","module.exports = __WEBPACK_EXTERNAL_MODULE__8__;"],"sourceRoot":""} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs/alt/video-js-cdn.css b/assets/netcut/lib/videojs/alt/video-js-cdn.css
new file mode 100644
index 0000000..1402829
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video-js-cdn.css
@@ -0,0 +1,1279 @@
+.video-js .vjs-big-play-button .vjs-icon-placeholder:before, .vjs-button > .vjs-icon-placeholder:before, .video-js .vjs-modal-dialog, .vjs-modal-dialog .vjs-modal-dialog-content {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%; }
+
+.video-js .vjs-big-play-button .vjs-icon-placeholder:before, .vjs-button > .vjs-icon-placeholder:before {
+ text-align: center; }
+
+@font-face {
+ font-family: VideoJS;
+ src: url(data:application/font-woff;charset=utf-8;base64,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) format("woff");
+ font-weight: normal;
+ font-style: normal; }
+
+.vjs-icon-play, .video-js .vjs-big-play-button .vjs-icon-placeholder:before, .video-js .vjs-play-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-play:before, .video-js .vjs-big-play-button .vjs-icon-placeholder:before, .video-js .vjs-play-control .vjs-icon-placeholder:before {
+ content: "\f101"; }
+
+.vjs-icon-play-circle {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-play-circle:before {
+ content: "\f102"; }
+
+.vjs-icon-pause, .video-js .vjs-play-control.vjs-playing .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-pause:before, .video-js .vjs-play-control.vjs-playing .vjs-icon-placeholder:before {
+ content: "\f103"; }
+
+.vjs-icon-volume-mute, .video-js .vjs-mute-control.vjs-vol-0 .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-mute:before, .video-js .vjs-mute-control.vjs-vol-0 .vjs-icon-placeholder:before {
+ content: "\f104"; }
+
+.vjs-icon-volume-low, .video-js .vjs-mute-control.vjs-vol-1 .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-low:before, .video-js .vjs-mute-control.vjs-vol-1 .vjs-icon-placeholder:before {
+ content: "\f105"; }
+
+.vjs-icon-volume-mid, .video-js .vjs-mute-control.vjs-vol-2 .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-mid:before, .video-js .vjs-mute-control.vjs-vol-2 .vjs-icon-placeholder:before {
+ content: "\f106"; }
+
+.vjs-icon-volume-high, .video-js .vjs-mute-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-high:before, .video-js .vjs-mute-control .vjs-icon-placeholder:before {
+ content: "\f107"; }
+
+.vjs-icon-fullscreen-enter, .video-js .vjs-fullscreen-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-fullscreen-enter:before, .video-js .vjs-fullscreen-control .vjs-icon-placeholder:before {
+ content: "\f108"; }
+
+.vjs-icon-fullscreen-exit, .video-js.vjs-fullscreen .vjs-fullscreen-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-fullscreen-exit:before, .video-js.vjs-fullscreen .vjs-fullscreen-control .vjs-icon-placeholder:before {
+ content: "\f109"; }
+
+.vjs-icon-square {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-square:before {
+ content: "\f10a"; }
+
+.vjs-icon-spinner {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-spinner:before {
+ content: "\f10b"; }
+
+.vjs-icon-subtitles, .video-js .vjs-subtitles-button .vjs-icon-placeholder, .video-js .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-GB) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-IE) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-AU) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-NZ) .vjs-subs-caps-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-subtitles:before, .video-js .vjs-subtitles-button .vjs-icon-placeholder:before, .video-js .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-GB) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-IE) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-AU) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-NZ) .vjs-subs-caps-button .vjs-icon-placeholder:before {
+ content: "\f10c"; }
+
+.vjs-icon-captions, .video-js .vjs-captions-button .vjs-icon-placeholder, .video-js:lang(en) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js:lang(fr-CA) .vjs-subs-caps-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-captions:before, .video-js .vjs-captions-button .vjs-icon-placeholder:before, .video-js:lang(en) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js:lang(fr-CA) .vjs-subs-caps-button .vjs-icon-placeholder:before {
+ content: "\f10d"; }
+
+.vjs-icon-chapters, .video-js .vjs-chapters-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-chapters:before, .video-js .vjs-chapters-button .vjs-icon-placeholder:before {
+ content: "\f10e"; }
+
+.vjs-icon-share {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-share:before {
+ content: "\f10f"; }
+
+.vjs-icon-cog {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-cog:before {
+ content: "\f110"; }
+
+.vjs-icon-circle, .video-js .vjs-play-progress, .video-js .vjs-volume-level {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-circle:before, .video-js .vjs-play-progress:before, .video-js .vjs-volume-level:before {
+ content: "\f111"; }
+
+.vjs-icon-circle-outline {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-circle-outline:before {
+ content: "\f112"; }
+
+.vjs-icon-circle-inner-circle {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-circle-inner-circle:before {
+ content: "\f113"; }
+
+.vjs-icon-hd {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-hd:before {
+ content: "\f114"; }
+
+.vjs-icon-cancel, .video-js .vjs-control.vjs-close-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-cancel:before, .video-js .vjs-control.vjs-close-button .vjs-icon-placeholder:before {
+ content: "\f115"; }
+
+.vjs-icon-replay, .video-js .vjs-play-control.vjs-ended .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-replay:before, .video-js .vjs-play-control.vjs-ended .vjs-icon-placeholder:before {
+ content: "\f116"; }
+
+.vjs-icon-facebook {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-facebook:before {
+ content: "\f117"; }
+
+.vjs-icon-gplus {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-gplus:before {
+ content: "\f118"; }
+
+.vjs-icon-linkedin {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-linkedin:before {
+ content: "\f119"; }
+
+.vjs-icon-twitter {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-twitter:before {
+ content: "\f11a"; }
+
+.vjs-icon-tumblr {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-tumblr:before {
+ content: "\f11b"; }
+
+.vjs-icon-pinterest {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-pinterest:before {
+ content: "\f11c"; }
+
+.vjs-icon-audio-description, .video-js .vjs-descriptions-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-audio-description:before, .video-js .vjs-descriptions-button .vjs-icon-placeholder:before {
+ content: "\f11d"; }
+
+.vjs-icon-audio, .video-js .vjs-audio-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-audio:before, .video-js .vjs-audio-button .vjs-icon-placeholder:before {
+ content: "\f11e"; }
+
+.vjs-icon-next-item {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-next-item:before {
+ content: "\f11f"; }
+
+.vjs-icon-previous-item {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-previous-item:before {
+ content: "\f120"; }
+
+.video-js {
+ display: block;
+ vertical-align: top;
+ box-sizing: border-box;
+ color: #fff;
+ background-color: #000;
+ position: relative;
+ padding: 0;
+ font-size: 10px;
+ line-height: 1;
+ font-weight: normal;
+ font-style: normal;
+ font-family: Arial, Helvetica, sans-serif;
+ word-break: initial; }
+ .video-js:-moz-full-screen {
+ position: absolute; }
+ .video-js:-webkit-full-screen {
+ width: 100% !important;
+ height: 100% !important; }
+
+.video-js[tabindex="-1"] {
+ outline: none; }
+
+.video-js *,
+.video-js *:before,
+.video-js *:after {
+ box-sizing: inherit; }
+
+.video-js ul {
+ font-family: inherit;
+ font-size: inherit;
+ line-height: inherit;
+ list-style-position: outside;
+ margin-left: 0;
+ margin-right: 0;
+ margin-top: 0;
+ margin-bottom: 0; }
+
+.video-js.vjs-fluid,
+.video-js.vjs-16-9,
+.video-js.vjs-4-3 {
+ width: 100%;
+ max-width: 100%;
+ height: 0; }
+
+.video-js.vjs-16-9 {
+ padding-top: 56.25%; }
+
+.video-js.vjs-4-3 {
+ padding-top: 75%; }
+
+.video-js.vjs-fill {
+ width: 100%;
+ height: 100%; }
+
+.video-js .vjs-tech {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%; }
+
+body.vjs-full-window {
+ padding: 0;
+ margin: 0;
+ height: 100%; }
+
+.vjs-full-window .video-js.vjs-fullscreen {
+ position: fixed;
+ overflow: hidden;
+ z-index: 1000;
+ left: 0;
+ top: 0;
+ bottom: 0;
+ right: 0; }
+
+.video-js.vjs-fullscreen {
+ width: 100% !important;
+ height: 100% !important;
+ padding-top: 0 !important; }
+
+.video-js.vjs-fullscreen.vjs-user-inactive {
+ cursor: none; }
+
+.vjs-hidden {
+ display: none !important; }
+
+.vjs-disabled {
+ opacity: 0.5;
+ cursor: default; }
+
+.video-js .vjs-offscreen {
+ height: 1px;
+ left: -9999px;
+ position: absolute;
+ top: 0;
+ width: 1px; }
+
+.vjs-lock-showing {
+ display: block !important;
+ opacity: 1;
+ visibility: visible; }
+
+.vjs-no-js {
+ padding: 20px;
+ color: #fff;
+ background-color: #000;
+ font-size: 18px;
+ font-family: Arial, Helvetica, sans-serif;
+ text-align: center;
+ width: 300px;
+ height: 150px;
+ margin: 0px auto; }
+
+.vjs-no-js a,
+.vjs-no-js a:visited {
+ color: #66A8CC; }
+
+.video-js .vjs-big-play-button {
+ font-size: 3em;
+ line-height: 1.5em;
+ height: 1.5em;
+ width: 3em;
+ display: block;
+ position: absolute;
+ top: 10px;
+ left: 10px;
+ padding: 0;
+ cursor: pointer;
+ opacity: 1;
+ border: 0.06666em solid #fff;
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7);
+ border-radius: 0.3em;
+ transition: all 0.4s; }
+
+.vjs-big-play-centered .vjs-big-play-button {
+ top: 50%;
+ left: 50%;
+ margin-top: -0.75em;
+ margin-left: -1.5em; }
+
+.video-js:hover .vjs-big-play-button,
+.video-js .vjs-big-play-button:focus {
+ border-color: #fff;
+ background-color: #73859f;
+ background-color: rgba(115, 133, 159, 0.5);
+ transition: all 0s; }
+
+.vjs-controls-disabled .vjs-big-play-button,
+.vjs-has-started .vjs-big-play-button,
+.vjs-using-native-controls .vjs-big-play-button,
+.vjs-error .vjs-big-play-button {
+ display: none; }
+
+.vjs-has-started.vjs-paused.vjs-show-big-play-button-on-pause .vjs-big-play-button {
+ display: block; }
+
+.video-js button {
+ background: none;
+ border: none;
+ color: inherit;
+ display: inline-block;
+ font-size: inherit;
+ line-height: inherit;
+ text-transform: none;
+ text-decoration: none;
+ transition: none;
+ -webkit-appearance: none;
+ -moz-appearance: none;
+ appearance: none; }
+
+.vjs-control .vjs-button {
+ width: 100%;
+ height: 100%; }
+
+.video-js .vjs-control.vjs-close-button {
+ cursor: pointer;
+ height: 3em;
+ position: absolute;
+ right: 0;
+ top: 0.5em;
+ z-index: 2; }
+
+.video-js .vjs-modal-dialog {
+ background: rgba(0, 0, 0, 0.8);
+ background: linear-gradient(180deg, rgba(0, 0, 0, 0.8), rgba(255, 255, 255, 0));
+ overflow: auto; }
+
+.video-js .vjs-modal-dialog > * {
+ box-sizing: border-box; }
+
+.vjs-modal-dialog .vjs-modal-dialog-content {
+ font-size: 1.2em;
+ line-height: 1.5;
+ padding: 20px 24px;
+ z-index: 1; }
+
+.vjs-menu-button {
+ cursor: pointer; }
+
+.vjs-menu-button.vjs-disabled {
+ cursor: default; }
+
+.vjs-workinghover .vjs-menu-button.vjs-disabled:hover .vjs-menu {
+ display: none; }
+
+.vjs-menu .vjs-menu-content {
+ display: block;
+ padding: 0;
+ margin: 0;
+ font-family: Arial, Helvetica, sans-serif;
+ overflow: auto; }
+
+.vjs-menu .vjs-menu-content > * {
+ box-sizing: border-box; }
+
+.vjs-scrubbing .vjs-control.vjs-menu-button:hover .vjs-menu {
+ display: none; }
+
+.vjs-menu li {
+ list-style: none;
+ margin: 0;
+ padding: 0.2em 0;
+ line-height: 1.4em;
+ font-size: 1.2em;
+ text-align: center;
+ text-transform: lowercase; }
+
+.vjs-menu li.vjs-menu-item:focus,
+.vjs-menu li.vjs-menu-item:hover {
+ background-color: #73859f;
+ background-color: rgba(115, 133, 159, 0.5); }
+
+.vjs-menu li.vjs-selected,
+.vjs-menu li.vjs-selected:focus,
+.vjs-menu li.vjs-selected:hover {
+ background-color: #fff;
+ color: #2B333F; }
+
+.vjs-menu li.vjs-menu-title {
+ text-align: center;
+ text-transform: uppercase;
+ font-size: 1em;
+ line-height: 2em;
+ padding: 0;
+ margin: 0 0 0.3em 0;
+ font-weight: bold;
+ cursor: default; }
+
+.vjs-menu-button-popup .vjs-menu {
+ display: none;
+ position: absolute;
+ bottom: 0;
+ width: 10em;
+ left: -3em;
+ height: 0em;
+ margin-bottom: 1.5em;
+ border-top-color: rgba(43, 51, 63, 0.7); }
+
+.vjs-menu-button-popup .vjs-menu .vjs-menu-content {
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7);
+ position: absolute;
+ width: 100%;
+ bottom: 1.5em;
+ max-height: 15em; }
+
+.vjs-workinghover .vjs-menu-button-popup:hover .vjs-menu,
+.vjs-menu-button-popup .vjs-menu.vjs-lock-showing {
+ display: block; }
+
+.video-js .vjs-menu-button-inline {
+ transition: all 0.4s;
+ overflow: hidden; }
+
+.video-js .vjs-menu-button-inline:before {
+ width: 2.222222222em; }
+
+.video-js .vjs-menu-button-inline:hover,
+.video-js .vjs-menu-button-inline:focus,
+.video-js .vjs-menu-button-inline.vjs-slider-active,
+.video-js.vjs-no-flex .vjs-menu-button-inline {
+ width: 12em; }
+
+.vjs-menu-button-inline .vjs-menu {
+ opacity: 0;
+ height: 100%;
+ width: auto;
+ position: absolute;
+ left: 4em;
+ top: 0;
+ padding: 0;
+ margin: 0;
+ transition: all 0.4s; }
+
+.vjs-menu-button-inline:hover .vjs-menu,
+.vjs-menu-button-inline:focus .vjs-menu,
+.vjs-menu-button-inline.vjs-slider-active .vjs-menu {
+ display: block;
+ opacity: 1; }
+
+.vjs-no-flex .vjs-menu-button-inline .vjs-menu {
+ display: block;
+ opacity: 1;
+ position: relative;
+ width: auto; }
+
+.vjs-no-flex .vjs-menu-button-inline:hover .vjs-menu,
+.vjs-no-flex .vjs-menu-button-inline:focus .vjs-menu,
+.vjs-no-flex .vjs-menu-button-inline.vjs-slider-active .vjs-menu {
+ width: auto; }
+
+.vjs-menu-button-inline .vjs-menu-content {
+ width: auto;
+ height: 100%;
+ margin: 0;
+ overflow: hidden; }
+
+.video-js .vjs-control-bar {
+ display: none;
+ width: 100%;
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ height: 3.0em;
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7); }
+
+.vjs-has-started .vjs-control-bar {
+ display: flex;
+ visibility: visible;
+ opacity: 1;
+ transition: visibility 0.1s, opacity 0.1s; }
+
+.vjs-has-started.vjs-user-inactive.vjs-playing .vjs-control-bar {
+ visibility: visible;
+ opacity: 0;
+ transition: visibility 1s, opacity 1s; }
+
+.vjs-controls-disabled .vjs-control-bar,
+.vjs-using-native-controls .vjs-control-bar,
+.vjs-error .vjs-control-bar {
+ display: none !important; }
+
+.vjs-audio.vjs-has-started.vjs-user-inactive.vjs-playing .vjs-control-bar {
+ opacity: 1;
+ visibility: visible; }
+
+.vjs-has-started.vjs-no-flex .vjs-control-bar {
+ display: table; }
+
+.video-js .vjs-control {
+ position: relative;
+ text-align: center;
+ margin: 0;
+ padding: 0;
+ height: 100%;
+ width: 4em;
+ flex: none; }
+
+.vjs-button > .vjs-icon-placeholder:before {
+ font-size: 1.8em;
+ line-height: 1.67; }
+
+.video-js .vjs-control:focus:before,
+.video-js .vjs-control:hover:before,
+.video-js .vjs-control:focus {
+ text-shadow: 0em 0em 1em white; }
+
+.video-js .vjs-control-text {
+ border: 0;
+ clip: rect(0 0 0 0);
+ height: 1px;
+ overflow: hidden;
+ padding: 0;
+ position: absolute;
+ width: 1px; }
+
+.vjs-no-flex .vjs-control {
+ display: table-cell;
+ vertical-align: middle; }
+
+.video-js .vjs-custom-control-spacer {
+ display: none; }
+
+.video-js .vjs-progress-control {
+ cursor: pointer;
+ flex: auto;
+ display: flex;
+ align-items: center;
+ min-width: 4em;
+ touch-action: none; }
+
+.video-js .vjs-progress-control.disabled {
+ cursor: default; }
+
+.vjs-live .vjs-progress-control {
+ display: none; }
+
+.vjs-no-flex .vjs-progress-control {
+ width: auto; }
+
+.video-js .vjs-progress-holder {
+ flex: auto;
+ transition: all 0.2s;
+ height: 0.3em; }
+
+.video-js .vjs-progress-control .vjs-progress-holder {
+ margin: 0 10px; }
+
+.video-js .vjs-progress-control:hover .vjs-progress-holder {
+ font-size: 1.666666666666666666em; }
+
+.video-js .vjs-progress-control:hover .vjs-progress-holder.disabled {
+ font-size: 1em; }
+
+.video-js .vjs-progress-holder .vjs-play-progress,
+.video-js .vjs-progress-holder .vjs-load-progress,
+.video-js .vjs-progress-holder .vjs-load-progress div {
+ position: absolute;
+ display: block;
+ height: 100%;
+ margin: 0;
+ padding: 0;
+ width: 0; }
+
+.video-js .vjs-play-progress {
+ background-color: #fff; }
+ .video-js .vjs-play-progress:before {
+ font-size: 0.9em;
+ position: absolute;
+ right: -0.5em;
+ top: -0.333333333333333em;
+ z-index: 1; }
+
+.video-js .vjs-load-progress {
+ background: rgba(115, 133, 159, 0.5); }
+
+.video-js .vjs-load-progress div {
+ background: rgba(115, 133, 159, 0.75); }
+
+.video-js .vjs-time-tooltip {
+ background-color: #fff;
+ background-color: rgba(255, 255, 255, 0.8);
+ border-radius: 0.3em;
+ color: #000;
+ float: right;
+ font-family: Arial, Helvetica, sans-serif;
+ font-size: 1em;
+ padding: 6px 8px 8px 8px;
+ pointer-events: none;
+ position: absolute;
+ top: -3.4em;
+ visibility: hidden;
+ z-index: 1; }
+
+.video-js .vjs-progress-holder:focus .vjs-time-tooltip {
+ display: none; }
+
+.video-js .vjs-progress-control:hover .vjs-time-tooltip,
+.video-js .vjs-progress-control:hover .vjs-progress-holder:focus .vjs-time-tooltip {
+ display: block;
+ font-size: 0.6em;
+ visibility: visible; }
+
+.video-js .vjs-progress-control.disabled:hover .vjs-time-tooltip {
+ font-size: 1em; }
+
+.video-js .vjs-progress-control .vjs-mouse-display {
+ display: none;
+ position: absolute;
+ width: 1px;
+ height: 100%;
+ background-color: #000;
+ z-index: 1; }
+
+.vjs-no-flex .vjs-progress-control .vjs-mouse-display {
+ z-index: 0; }
+
+.video-js .vjs-progress-control:hover .vjs-mouse-display {
+ display: block; }
+
+.video-js.vjs-user-inactive .vjs-progress-control .vjs-mouse-display {
+ visibility: hidden;
+ opacity: 0;
+ transition: visibility 1s, opacity 1s; }
+
+.video-js.vjs-user-inactive.vjs-no-flex .vjs-progress-control .vjs-mouse-display {
+ display: none; }
+
+.vjs-mouse-display .vjs-time-tooltip {
+ color: #fff;
+ background-color: #000;
+ background-color: rgba(0, 0, 0, 0.8); }
+
+.video-js .vjs-slider {
+ position: relative;
+ cursor: pointer;
+ padding: 0;
+ margin: 0 0.45em 0 0.45em;
+ /* iOS Safari */
+ -webkit-touch-callout: none;
+ /* Safari */
+ -webkit-user-select: none;
+ /* Konqueror HTML */
+ /* Firefox */
+ -moz-user-select: none;
+ /* Internet Explorer/Edge */
+ -ms-user-select: none;
+ /* Non-prefixed version, currently supported by Chrome and Opera */
+ user-select: none;
+ background-color: #73859f;
+ background-color: rgba(115, 133, 159, 0.5); }
+
+.video-js .vjs-slider.disabled {
+ cursor: default; }
+
+.video-js .vjs-slider:focus {
+ text-shadow: 0em 0em 1em white;
+ box-shadow: 0 0 1em #fff; }
+
+.video-js .vjs-mute-control {
+ cursor: pointer;
+ flex: none; }
+
+.video-js .vjs-volume-control {
+ cursor: pointer;
+ margin-right: 1em;
+ display: flex; }
+
+.video-js .vjs-volume-control.vjs-volume-horizontal {
+ width: 5em; }
+
+.video-js .vjs-volume-panel .vjs-volume-control {
+ visibility: visible;
+ opacity: 0;
+ width: 1px;
+ height: 1px;
+ margin-left: -1px; }
+
+.video-js .vjs-volume-panel {
+ transition: width 1s; }
+ .video-js .vjs-volume-panel:hover .vjs-volume-control,
+ .video-js .vjs-volume-panel:active .vjs-volume-control,
+ .video-js .vjs-volume-panel:focus .vjs-volume-control,
+ .video-js .vjs-volume-panel .vjs-volume-control:hover,
+ .video-js .vjs-volume-panel .vjs-volume-control:active,
+ .video-js .vjs-volume-panel .vjs-mute-control:hover ~ .vjs-volume-control,
+ .video-js .vjs-volume-panel .vjs-volume-control.vjs-slider-active {
+ visibility: visible;
+ opacity: 1;
+ position: relative;
+ transition: visibility 0.1s, opacity 0.1s, height 0.1s, width 0.1s, left 0s, top 0s; }
+ .video-js .vjs-volume-panel:hover .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel:active .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel:focus .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-volume-control:hover.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-volume-control:active.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-mute-control:hover ~ .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-volume-control.vjs-slider-active.vjs-volume-horizontal {
+ width: 5em;
+ height: 3em; }
+ .video-js .vjs-volume-panel.vjs-volume-panel-horizontal:hover, .video-js .vjs-volume-panel.vjs-volume-panel-horizontal:active, .video-js .vjs-volume-panel.vjs-volume-panel-horizontal.vjs-slider-active {
+ width: 9em;
+ transition: width 0.1s; }
+ .video-js .vjs-volume-panel.vjs-volume-panel-horizontal.vjs-mute-toggle-only {
+ width: 4em; }
+
+.video-js .vjs-volume-panel .vjs-volume-control.vjs-volume-vertical {
+ height: 8em;
+ width: 3em;
+ left: -3.5em;
+ transition: visibility 1s, opacity 1s, height 1s 1s, width 1s 1s, left 1s 1s, top 1s 1s; }
+
+.video-js .vjs-volume-panel .vjs-volume-control.vjs-volume-horizontal {
+ transition: visibility 1s, opacity 1s, height 1s 1s, width 1s, left 1s 1s, top 1s 1s; }
+
+.video-js.vjs-no-flex .vjs-volume-panel .vjs-volume-control.vjs-volume-horizontal {
+ width: 5em;
+ height: 3em;
+ visibility: visible;
+ opacity: 1;
+ position: relative;
+ transition: none; }
+
+.video-js.vjs-no-flex .vjs-volume-control.vjs-volume-vertical,
+.video-js.vjs-no-flex .vjs-volume-panel .vjs-volume-control.vjs-volume-vertical {
+ position: absolute;
+ bottom: 3em;
+ left: 0.5em; }
+
+.video-js .vjs-volume-panel {
+ display: flex; }
+
+.video-js .vjs-volume-bar {
+ margin: 1.35em 0.45em; }
+
+.vjs-volume-bar.vjs-slider-horizontal {
+ width: 5em;
+ height: 0.3em; }
+
+.vjs-volume-bar.vjs-slider-vertical {
+ width: 0.3em;
+ height: 5em;
+ margin: 1.35em auto; }
+
+.video-js .vjs-volume-level {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ background-color: #fff; }
+ .video-js .vjs-volume-level:before {
+ position: absolute;
+ font-size: 0.9em; }
+
+.vjs-slider-vertical .vjs-volume-level {
+ width: 0.3em; }
+ .vjs-slider-vertical .vjs-volume-level:before {
+ top: -0.5em;
+ left: -0.3em; }
+
+.vjs-slider-horizontal .vjs-volume-level {
+ height: 0.3em; }
+ .vjs-slider-horizontal .vjs-volume-level:before {
+ top: -0.3em;
+ right: -0.5em; }
+
+.video-js .vjs-volume-panel.vjs-volume-panel-vertical {
+ width: 4em; }
+
+.vjs-volume-bar.vjs-slider-vertical .vjs-volume-level {
+ height: 100%; }
+
+.vjs-volume-bar.vjs-slider-horizontal .vjs-volume-level {
+ width: 100%; }
+
+.video-js .vjs-volume-vertical {
+ width: 3em;
+ height: 8em;
+ bottom: 8em;
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7); }
+
+.video-js .vjs-volume-horizontal .vjs-menu {
+ left: -2em; }
+
+.vjs-poster {
+ display: inline-block;
+ vertical-align: middle;
+ background-repeat: no-repeat;
+ background-position: 50% 50%;
+ background-size: contain;
+ background-color: #000000;
+ cursor: pointer;
+ margin: 0;
+ padding: 0;
+ position: absolute;
+ top: 0;
+ right: 0;
+ bottom: 0;
+ left: 0;
+ height: 100%; }
+
+.vjs-has-started .vjs-poster {
+ display: none; }
+
+.vjs-audio.vjs-has-started .vjs-poster {
+ display: block; }
+
+.vjs-using-native-controls .vjs-poster {
+ display: none; }
+
+.video-js .vjs-live-control {
+ display: flex;
+ align-items: flex-start;
+ flex: auto;
+ font-size: 1em;
+ line-height: 3em; }
+
+.vjs-no-flex .vjs-live-control {
+ display: table-cell;
+ width: auto;
+ text-align: left; }
+
+.video-js .vjs-time-control {
+ flex: none;
+ font-size: 1em;
+ line-height: 3em;
+ min-width: 2em;
+ width: auto;
+ padding-left: 1em;
+ padding-right: 1em; }
+
+.vjs-live .vjs-time-control {
+ display: none; }
+
+.video-js .vjs-current-time,
+.vjs-no-flex .vjs-current-time {
+ display: none; }
+
+.video-js .vjs-duration,
+.vjs-no-flex .vjs-duration {
+ display: none; }
+
+.vjs-time-divider {
+ display: none;
+ line-height: 3em; }
+
+.vjs-live .vjs-time-divider {
+ display: none; }
+
+.video-js .vjs-play-control .vjs-icon-placeholder {
+ cursor: pointer;
+ flex: none; }
+
+.vjs-text-track-display {
+ position: absolute;
+ bottom: 3em;
+ left: 0;
+ right: 0;
+ top: 0;
+ pointer-events: none; }
+
+.video-js.vjs-user-inactive.vjs-playing .vjs-text-track-display {
+ bottom: 1em; }
+
+.video-js .vjs-text-track {
+ font-size: 1.4em;
+ text-align: center;
+ margin-bottom: 0.1em; }
+
+.vjs-subtitles {
+ color: #fff; }
+
+.vjs-captions {
+ color: #fc6; }
+
+.vjs-tt-cue {
+ display: block; }
+
+video::-webkit-media-text-track-display {
+ -webkit-transform: translateY(-3em);
+ transform: translateY(-3em); }
+
+.video-js.vjs-user-inactive.vjs-playing video::-webkit-media-text-track-display {
+ -webkit-transform: translateY(-1.5em);
+ transform: translateY(-1.5em); }
+
+.video-js .vjs-fullscreen-control {
+ cursor: pointer;
+ flex: none; }
+
+.vjs-playback-rate > .vjs-menu-button,
+.vjs-playback-rate .vjs-playback-rate-value {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%; }
+
+.vjs-playback-rate .vjs-playback-rate-value {
+ pointer-events: none;
+ font-size: 1.5em;
+ line-height: 2;
+ text-align: center; }
+
+.vjs-playback-rate .vjs-menu {
+ width: 4em;
+ left: 0em; }
+
+.vjs-error .vjs-error-display .vjs-modal-dialog-content {
+ font-size: 1.4em;
+ text-align: center; }
+
+.vjs-error .vjs-error-display:before {
+ color: #fff;
+ content: 'X';
+ font-family: Arial, Helvetica, sans-serif;
+ font-size: 4em;
+ left: 0;
+ line-height: 1;
+ margin-top: -0.5em;
+ position: absolute;
+ text-shadow: 0.05em 0.05em 0.1em #000;
+ text-align: center;
+ top: 50%;
+ vertical-align: middle;
+ width: 100%; }
+
+.vjs-loading-spinner {
+ display: none;
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ margin: -25px 0 0 -25px;
+ opacity: 0.85;
+ text-align: left;
+ border: 6px solid rgba(43, 51, 63, 0.7);
+ box-sizing: border-box;
+ background-clip: padding-box;
+ width: 50px;
+ height: 50px;
+ border-radius: 25px;
+ visibility: hidden; }
+
+.vjs-seeking .vjs-loading-spinner,
+.vjs-waiting .vjs-loading-spinner {
+ display: block;
+ -webkit-animation: 0s linear 0.3s forwards vjs-spinner-show;
+ animation: 0s linear 0.3s forwards vjs-spinner-show; }
+
+.vjs-loading-spinner:before,
+.vjs-loading-spinner:after {
+ content: "";
+ position: absolute;
+ margin: -6px;
+ box-sizing: inherit;
+ width: inherit;
+ height: inherit;
+ border-radius: inherit;
+ opacity: 1;
+ border: inherit;
+ border-color: transparent;
+ border-top-color: white; }
+
+.vjs-seeking .vjs-loading-spinner:before,
+.vjs-seeking .vjs-loading-spinner:after,
+.vjs-waiting .vjs-loading-spinner:before,
+.vjs-waiting .vjs-loading-spinner:after {
+ -webkit-animation: vjs-spinner-spin 1.1s cubic-bezier(0.6, 0.2, 0, 0.8) infinite, vjs-spinner-fade 1.1s linear infinite;
+ animation: vjs-spinner-spin 1.1s cubic-bezier(0.6, 0.2, 0, 0.8) infinite, vjs-spinner-fade 1.1s linear infinite; }
+
+.vjs-seeking .vjs-loading-spinner:before,
+.vjs-waiting .vjs-loading-spinner:before {
+ border-top-color: white; }
+
+.vjs-seeking .vjs-loading-spinner:after,
+.vjs-waiting .vjs-loading-spinner:after {
+ border-top-color: white;
+ -webkit-animation-delay: 0.44s;
+ animation-delay: 0.44s; }
+
+@keyframes vjs-spinner-show {
+ to {
+ visibility: visible; } }
+
+@-webkit-keyframes vjs-spinner-show {
+ to {
+ visibility: visible; } }
+
+@keyframes vjs-spinner-spin {
+ 100% {
+ -webkit-transform: rotate(360deg);
+ transform: rotate(360deg); } }
+
+@-webkit-keyframes vjs-spinner-spin {
+ 100% {
+ -webkit-transform: rotate(360deg); } }
+
+@keyframes vjs-spinner-fade {
+ 0% {
+ border-top-color: #73859f; }
+ 20% {
+ border-top-color: #73859f; }
+ 35% {
+ border-top-color: white; }
+ 60% {
+ border-top-color: #73859f; }
+ 100% {
+ border-top-color: #73859f; } }
+
+@-webkit-keyframes vjs-spinner-fade {
+ 0% {
+ border-top-color: #73859f; }
+ 20% {
+ border-top-color: #73859f; }
+ 35% {
+ border-top-color: white; }
+ 60% {
+ border-top-color: #73859f; }
+ 100% {
+ border-top-color: #73859f; } }
+
+.vjs-chapters-button .vjs-menu ul {
+ width: 24em; }
+
+.video-js .vjs-subs-caps-button + .vjs-menu .vjs-captions-menu-item .vjs-menu-item-text .vjs-icon-placeholder {
+ vertical-align: middle;
+ display: inline-block;
+ margin-bottom: -0.1em; }
+
+.video-js .vjs-subs-caps-button + .vjs-menu .vjs-captions-menu-item .vjs-menu-item-text .vjs-icon-placeholder:before {
+ font-family: VideoJS;
+ content: "\f10d";
+ font-size: 1.5em;
+ line-height: inherit; }
+
+.video-js .vjs-audio-button + .vjs-menu .vjs-main-desc-menu-item .vjs-menu-item-text .vjs-icon-placeholder {
+ vertical-align: middle;
+ display: inline-block;
+ margin-bottom: -0.1em; }
+
+.video-js .vjs-audio-button + .vjs-menu .vjs-main-desc-menu-item .vjs-menu-item-text .vjs-icon-placeholder:before {
+ font-family: VideoJS;
+ content: " \f11d";
+ font-size: 1.5em;
+ line-height: inherit; }
+
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-custom-control-spacer {
+ flex: auto; }
+
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen).vjs-no-flex .vjs-custom-control-spacer {
+ width: auto; }
+
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-current-time, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-time-divider, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-duration, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-remaining-time,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-playback-rate, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-progress-control,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-mute-control, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-volume-control,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-chapters-button, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-descriptions-button, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-captions-button,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-subtitles-button, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-audio-button {
+ display: none; }
+
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-current-time, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-time-divider, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-duration, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-remaining-time,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-playback-rate,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-mute-control, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-volume-control,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-chapters-button, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-descriptions-button, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-captions-button,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-subtitles-button, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-audio-button {
+ display: none; }
+
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-current-time, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-time-divider, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-duration, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-remaining-time,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-playback-rate,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-mute-control, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-volume-control,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-chapters-button, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-descriptions-button, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-captions-button,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-subtitles-button .vjs-audio-button {
+ display: none; }
+
+.vjs-modal-dialog.vjs-text-track-settings {
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.75);
+ color: #fff;
+ height: 70%; }
+
+.vjs-text-track-settings .vjs-modal-dialog-content {
+ display: table; }
+
+.vjs-text-track-settings .vjs-track-settings-colors,
+.vjs-text-track-settings .vjs-track-settings-font,
+.vjs-text-track-settings .vjs-track-settings-controls {
+ display: table-cell; }
+
+.vjs-text-track-settings .vjs-track-settings-controls {
+ text-align: right;
+ vertical-align: bottom; }
+
+@supports (display: grid) {
+ .vjs-text-track-settings .vjs-modal-dialog-content {
+ display: grid;
+ grid-template-columns: 1fr 1fr;
+ grid-template-rows: 1fr auto; }
+ .vjs-text-track-settings .vjs-track-settings-colors {
+ display: block;
+ grid-column: 1;
+ grid-row: 1; }
+ .vjs-text-track-settings .vjs-track-settings-font {
+ grid-column: 2;
+ grid-row: 1; }
+ .vjs-text-track-settings .vjs-track-settings-controls {
+ grid-column: 2;
+ grid-row: 2; } }
+
+.vjs-track-setting > select {
+ margin-right: 5px; }
+
+.vjs-text-track-settings fieldset {
+ margin: 5px;
+ padding: 3px;
+ border: none; }
+
+.vjs-text-track-settings fieldset span {
+ display: inline-block; }
+
+.vjs-text-track-settings legend {
+ color: #fff;
+ margin: 0 0 5px 0; }
+
+.vjs-text-track-settings .vjs-label {
+ position: absolute;
+ clip: rect(1px 1px 1px 1px);
+ clip: rect(1px, 1px, 1px, 1px);
+ display: block;
+ margin: 0 0 5px 0;
+ padding: 0;
+ border: 0;
+ height: 1px;
+ width: 1px;
+ overflow: hidden; }
+
+.vjs-track-settings-controls button:focus,
+.vjs-track-settings-controls button:active {
+ outline-style: solid;
+ outline-width: medium;
+ background-image: linear-gradient(0deg, #fff 88%, #73859f 100%); }
+
+.vjs-track-settings-controls button:hover {
+ color: rgba(43, 51, 63, 0.75); }
+
+.vjs-track-settings-controls button {
+ background-color: #fff;
+ background-image: linear-gradient(-180deg, #fff 88%, #73859f 100%);
+ color: #2B333F;
+ cursor: pointer;
+ border-radius: 2px; }
+
+.vjs-track-settings-controls .vjs-default-button {
+ margin-right: 1em; }
+
+@media print {
+ .video-js > *:not(.vjs-tech):not(.vjs-poster) {
+ visibility: hidden; } }
+
+.vjs-resize-manager {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%;
+ border: none;
+ visibility: hidden; }
diff --git a/assets/netcut/lib/videojs/alt/video-js-cdn.min.css b/assets/netcut/lib/videojs/alt/video-js-cdn.min.css
new file mode 100644
index 0000000..3ff1c7f
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video-js-cdn.min.css
@@ -0,0 +1 @@
+.video-js .vjs-big-play-button .vjs-icon-placeholder:before,.video-js .vjs-modal-dialog,.vjs-button>.vjs-icon-placeholder:before,.vjs-modal-dialog .vjs-modal-dialog-content{position:absolute;top:0;left:0;width:100%;height:100%}.video-js .vjs-big-play-button .vjs-icon-placeholder:before,.vjs-button>.vjs-icon-placeholder:before{text-align:center}@font-face{font-family:VideoJS;src:url(data:application/font-woff;charset=utf-8;base64,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diff --git a/assets/netcut/lib/videojs/alt/video.core.js b/assets/netcut/lib/videojs/alt/video.core.js
new file mode 100644
index 0000000..d2b72e5
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video.core.js
@@ -0,0 +1,26948 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global.videojs = factory());
+}(this, (function () {
+ var version = "7.2.4";
+
+ var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+ function createCommonjsModule(fn, module) {
+ return module = { exports: {} }, fn(module, module.exports), module.exports;
+ }
+
+ var win;
+
+ if (typeof window !== "undefined") {
+ win = window;
+ } else if (typeof commonjsGlobal !== "undefined") {
+ win = commonjsGlobal;
+ } else if (typeof self !== "undefined") {
+ win = self;
+ } else {
+ win = {};
+ }
+
+ var window_1 = win;
+
+ var empty = {};
+
+ var empty$1 = /*#__PURE__*/Object.freeze({
+ default: empty
+ });
+
+ var minDoc = ( empty$1 && empty ) || empty$1;
+
+ var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
+
+ var doccy;
+
+ if (typeof document !== 'undefined') {
+ doccy = document;
+ } else {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
+
+ if (!doccy) {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
+ }
+ }
+
+ var document_1 = doccy;
+
+ /**
+ * @file log.js
+ * @module log
+ */
+
+ var log = void 0;
+
+ // This is the private tracking variable for logging level.
+ var level = 'info';
+
+ // This is the private tracking variable for the logging history.
+ var history = [];
+
+ /**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+ var logByType = function logByType(type, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp('^(' + lvl + ')$');
+
+ if (type !== 'log') {
+
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ }
+
+ // Add a clone of the args at this point to history.
+ if (history) {
+ history.push([].concat(args));
+ }
+
+ // Add console prefix after adding to history.
+ args.unshift('VIDEOJS:');
+
+ // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+ if (!window_1.console) {
+ return;
+ }
+
+ // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+ var fn = window_1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window_1.console.info || window_1.console.log;
+ }
+
+ // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window_1.console, args);
+ };
+
+ /**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * @class
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+ log = function log() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', args);
+ };
+
+ /**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+ log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+ };
+
+ /**
+ * Get or set the current logging level. If a string matching a key from
+ * {@link log.levels} is provided, acts as a setter. Regardless of argument,
+ * returns the current logging level.
+ *
+ * @param {string} [lvl]
+ * Pass to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+ log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error('"' + lvl + '" in not a valid log level');
+ }
+ level = lvl;
+ }
+ return level;
+ };
+
+ /**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+ log.history = function () {
+ return history ? [].concat(history) : [];
+ };
+
+ /**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+ log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+ };
+
+ /**
+ * Disable history tracking if it is currently enabled.
+ */
+ log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+ };
+
+ /**
+ * Enable history tracking if it is currently disabled.
+ */
+ log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+ };
+
+ /**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+ log.error = function () {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', args);
+ };
+
+ /**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+ log.warn = function () {
+ for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', args);
+ };
+
+ /**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+ log.debug = function () {
+ for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', args);
+ };
+
+ var log$1 = log;
+
+ function clean(s) {
+ return s.replace(/\n\r?\s*/g, '');
+ }
+
+ var tsml = function tsml(sa) {
+ var s = '',
+ i = 0;
+
+ for (; i < arguments.length; i++) {
+ s += clean(sa[i]) + (arguments[i + 1] || '');
+ }return s;
+ };
+
+ var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+ };
+
+ var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var inherits = function (subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn = function (self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+ };
+
+ var taggedTemplateLiteralLoose = function (strings, raw) {
+ strings.raw = raw;
+ return strings;
+ };
+
+ /**
+ * @file obj.js
+ * @module obj
+ */
+
+ /**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+ /**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+ var toString = Object.prototype.toString;
+
+ /**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+ var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+ };
+
+ /**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+ function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+ }
+
+ /**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+ function reduce(object, fn) {
+ var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+ }
+
+ /**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+ function assign(target) {
+ for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+
+ return target;
+ }
+
+ /**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isObject(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';
+ }
+
+ /**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+ }
+
+ /**
+ * @file computed-style.js
+ * @module computed-style
+ */
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to
+ * make sure that the player doesn't break in these cases.
+ *
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ *
+ * @static
+ * @const
+ */
+ function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var cs = window_1.getComputedStyle(el);
+
+ return cs ? cs[prop] : '';
+ }
+
+ return '';
+ }
+
+ var _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);
+
+ /**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * - True if the string is non-blank
+ * - False otherwise
+ *
+ */
+ function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+ }
+
+ /**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ *
+ */
+ function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+ }
+
+ /**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+ function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+ }
+
+ /**
+ * Whether the current DOM interface appears to be real.
+ *
+ * @return {Boolean}
+ */
+ function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document_1 === window_1.document;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The thing to check
+ *
+ * @return {boolean}
+ * - True if it is a DOM element
+ * - False otherwise
+ */
+ function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+ }
+
+ /**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ *
+ */
+ function isInFrame() {
+
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window_1.parent !== window_1.self;
+ } catch (x) {
+ return true;
+ }
+ }
+
+ /**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+ function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document_1[method](null);
+ }
+ if (isNonBlankString(context)) {
+ context = document_1.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document_1;
+
+ return ctx[method] && ctx[method](selector);
+ };
+ }
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {String|Element|TextNode|Array|Function} [content]
+ * Contents for the element (see: {@link dom:normalizeContent})
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ function createEl() {
+ var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var content = arguments[3];
+
+ var el = document_1.createElement(tagName);
+
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName];
+
+ // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log$1.warn(tsml(_templateObject, propName, val));
+ el.setAttribute(propName, val);
+
+ // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+ }
+
+ /**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+ function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+ return el;
+ }
+
+ /**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+ function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+ }
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * - True if the element had the class
+ * - False otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+ function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+ return classRegExp(classToCheck).test(element.className);
+ }
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The dom element with the added class name.
+ */
+ function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd);
+
+ // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+ }
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The dom element with class name removed.
+ */
+ function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+ }
+
+ /**
+ * The callback definition for toggleElClass.
+ *
+ * @callback Dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * - If true the `classToToggle` will get added to `element`.
+ * - If false the `classToToggle` will get removed from `element`.
+ * - If undefined this callback will be ignored
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled
+ *
+ * @param {boolean|PredicateCallback} [predicate]
+ * See the return value for {@link Dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+ function toggleClass(element, classToToggle, predicate) {
+
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ }
+
+ // If the necessary class operation matches the current state of the
+ // element, no action is required.
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+ }
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+ function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+ }
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element.
+ */
+ function getAttributes(tag) {
+ var obj = {};
+
+ // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value;
+
+ // check for known booleans
+ // the matching element property will return a value for typeof
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+ }
+
+ /**
+ * Get the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to get the value of
+ *
+ * @return {string}
+ * value of the attribute
+ */
+ function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+ }
+
+ /**
+ * Set the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to set
+ *
+ * @param {string} value
+ * Value to set the attribute to
+ */
+ function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+ }
+
+ /**
+ * Remove an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to remove
+ */
+ function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+ }
+
+ /**
+ * Attempt to block the ability to select text while dragging controls
+ */
+ function blockTextSelection() {
+ document_1.body.focus();
+ document_1.onselectstart = function () {
+ return false;
+ };
+ }
+
+ /**
+ * Turn off text selection blocking
+ */
+ function unblockTextSelection() {
+ document_1.onselectstart = function () {
+ return true;
+ };
+ }
+
+ /**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain
+ */
+ function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+ }
+
+ /**
+ * The postion of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left
+ *
+ * @property {number} top
+ * Pixels on top
+ */
+
+ /**
+ * Offset Left.
+ * getBoundingClientRect technique from
+ * John Resig
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+ function findPosition(el) {
+ var box = void 0;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document_1.documentElement;
+ var body = document_1.body;
+
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window_1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window_1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop;
+
+ // Android sometimes returns slightly off decimal values, so need to round
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+ }
+
+ /**
+ * x and y coordinates for a dom element or mouse pointer
+ *
+ * @typedef {Object} Dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+ /**
+ * Get pointer position in element
+ * Returns an object with x and y coordinates.
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {Dom~Coordinates}
+ * A Coordinates object corresponding to the mouse position.
+ *
+ */
+ function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+
+ return position;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * - True if it is a text node
+ * - False otherwise
+ */
+ function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+ }
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+ function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+ return el;
+ }
+
+ /**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but protects
+ * from falling into the trap of simply writing to `innerHTML`, which is
+ * an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * - String: Normalized into a text node.
+ * - Element/TextNode: Passed through.
+ * - Array: A one-dimensional array of strings, elements, nodes, or functions
+ * (which return single strings, elements, or nodes).
+ * - Function: If the sole argument, is expected to produce a string, element,
+ * node, or array as defined above.
+ *
+ * @return {Array}
+ * All of the content that was passed in normalized.
+ */
+ function normalizeContent(content) {
+
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ }
+
+ // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document_1.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+ }
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+ function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+ }
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ *
+ */
+ function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+ }
+
+ /**
+ * Check if event was a single left click
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {boolean}
+ * - True if a left click
+ * - False if not a left click
+ */
+ function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+ var $ = createQuerier('querySelector');
+
+ /**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none were found.
+ *
+ */
+ var $$ = createQuerier('querySelectorAll');
+
+ var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+ });
+
+ /**
+ * @file guid.js
+ * @module guid
+ */
+
+ /**
+ * Unique ID for an element or function
+ * @type {Number}
+ */
+ var _guid = 1;
+
+ /**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+ function newGUID() {
+ return _guid++;
+ }
+
+ /**
+ * @file dom-data.js
+ * @module dom-data
+ */
+
+ /**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+ var elData = {};
+
+ /*
+ * Unique attribute name to store an element's guid in
+ *
+ * @type {String}
+ * @constant
+ * @private
+ */
+ var elIdAttr = 'vdata' + new Date().getTime();
+
+ /**
+ * Returns the cache object where data for an element is stored
+ *
+ * @param {Element} el
+ * Element to store data for.
+ *
+ * @return {Object}
+ * The cache object for that el that was passed in.
+ */
+ function getData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ id = el[elIdAttr] = newGUID();
+ }
+
+ if (!elData[id]) {
+ elData[id] = {};
+ }
+
+ return elData[id];
+ }
+
+ /**
+ * Returns whether or not an element has cached data
+ *
+ * @param {Element} el
+ * Check if this element has cached data.
+ *
+ * @return {boolean}
+ * - True if the DOM element has cached data.
+ * - False otherwise.
+ */
+ function hasData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return false;
+ }
+
+ return !!Object.getOwnPropertyNames(elData[id]).length;
+ }
+
+ /**
+ * Delete data for the element from the cache and the guid attr from getElementById
+ *
+ * @param {Element} el
+ * Remove cached data for this element.
+ */
+ function removeData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return;
+ }
+
+ // Remove all stored data
+ delete elData[id];
+
+ // Remove the elIdAttr property from the DOM node
+ try {
+ delete el[elIdAttr];
+ } catch (e) {
+ if (el.removeAttribute) {
+ el.removeAttribute(elIdAttr);
+ } else {
+ // IE doesn't appear to support removeAttribute on the document element
+ el[elIdAttr] = null;
+ }
+ }
+ }
+
+ /**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @module events
+ */
+
+ /**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+ function _cleanUpEvents(elem, type) {
+ var data = getData(elem);
+
+ // Remove the events of a particular type if there are none left
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type];
+ // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+
+ // Remove the meta-handler from the element
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ }
+
+ // Remove the events object if there are no types left
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ }
+
+ // Finally remove the element data if there is no data left
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ removeData(elem);
+ }
+ }
+
+ /**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+ function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+ }
+
+ /**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+ function fixEvent(event) {
+
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ }
+
+ // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window_1.event;
+
+ event = {};
+ // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ }
+
+ // The event occurred on this element
+ if (!event.target) {
+ event.target = event.srcElement || document_1;
+ }
+
+ // Handle which other element the event is related to
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ }
+
+ // Stop the default browser action
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false;
+
+ // Stop the event from bubbling
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse;
+
+ // Stop the event from bubbling and executing other handlers
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse;
+
+ // Handle mouse position
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document_1.documentElement;
+ var body = document_1.body;
+
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ }
+
+ // Handle key presses
+ event.which = event.charCode || event.keyCode;
+
+ // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+ if (event.button !== null && event.button !== undefined) {
+
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ }
+
+ // Returns fixed-up instance
+ return event;
+ }
+
+ /**
+ * Whether passive event listeners are supported
+ */
+ var _supportsPassive = false;
+
+ (function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+
+ window_1.addEventListener('test', null, opts);
+ window_1.removeEventListener('test', null, opts);
+ } catch (e) {
+ // disregard
+ }
+ })();
+
+ /**
+ * Touch events Chrome expects to be passive
+ */
+ var passiveEvents = ['touchstart', 'touchmove'];
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+ function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ var data = getData(elem);
+
+ // We need a place to store all our handler data
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log$1.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = { passive: true };
+ }
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+ }
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+ function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!hasData(elem)) {
+ return;
+ }
+
+ var data = getData(elem);
+
+ // If no events exist, nothing to unbind
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ }
+
+ // Utility function
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+ _cleanUpEvents(el, t);
+ };
+
+ // Are we removing all bound events?
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+ return;
+ }
+
+ var handlers = data.handlers[type];
+
+ // If no handlers exist, nothing to unbind
+ if (!handlers) {
+ return;
+ }
+
+ // If no listener was provided, remove all listeners for type
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ }
+
+ // We're only removing a single handler
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+ }
+
+ /**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * - Returns the opposite of `defaultPrevented` if default was prevented
+ * - Otherwise returns undefined
+ */
+ function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = hasData(elem) ? getData(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument;
+ // type = event.type || event,
+ // handler;
+
+ // If an event name was passed as a string, creates an event out of it
+ if (typeof event === 'string') {
+ event = { type: event, target: elem };
+ } else if (!event.target) {
+ event.target = elem;
+ }
+
+ // Normalizes the event properties.
+ event = fixEvent(event);
+
+ // If the passed element has a dispatcher, executes the established handlers.
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ }
+
+ // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash);
+
+ // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented) {
+ var targetData = getData(event.target);
+
+ // Checks if the target has a default action for this event.
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true;
+ // Executes the default action.
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ }
+ // Re-enables event dispatching.
+ targetData.disabled = false;
+ }
+ }
+
+ // Inform the triggerer if the default was prevented by returning false
+ return !event.defaultPrevented;
+ }
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event Listener function
+ */
+ function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ };
+
+ // copy the guid to the new function so it can removed using the original function's ID
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+ }
+
+ var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one
+ });
+
+ /**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+
+ var _windowLoaded = false;
+ var videojs = void 0;
+
+ /**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+ var autoSetup = function autoSetup() {
+
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document_1.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document_1.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document_1.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs);
+
+ // Check if any media elements exist
+ if (mediaEls && mediaEls.length > 0) {
+
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i];
+
+ // Check if element exists, has getAttribute func.
+ if (mediaEl && mediaEl.getAttribute) {
+
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup');
+
+ // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ }
+
+ // If getAttribute isn't defined, we need to wait for the DOM.
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ }
+
+ // No videos were found, so keep looping unless page is finished loading.
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+ };
+
+ /**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+ function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window_1.setTimeout(autoSetup, wait);
+ }
+
+ if (isReal() && document_1.readyState === 'complete') {
+ _windowLoaded = true;
+ } else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * @listens load
+ */
+ one(window_1, 'load', function () {
+ _windowLoaded = true;
+ });
+ }
+
+ /**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+
+ /**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ var createStyleElement = function createStyleElement(className) {
+ var style = document_1.createElement('style');
+
+ style.className = className;
+
+ return style;
+ };
+
+ /**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+ var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+ };
+
+ /**
+ * @file fn.js
+ * @module fn
+ */
+
+ /**
+ * Bind (a.k.a proxy or Context). A simple method for changing the context of a function
+ * It also stores a unique id on the function so it can be easily removed from events.
+ *
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+ var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ // Create the new function that changes the context
+ var bound = function bound() {
+ return fn.apply(context, arguments);
+ };
+
+ // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+
+ return bound;
+ };
+
+ /**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {Number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+ var throttle = function throttle(fn, wait) {
+ var last = Date.now();
+
+ var throttled = function throttled() {
+ var now = Date.now();
+
+ if (now - last >= wait) {
+ fn.apply(undefined, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+ };
+
+ /**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+ var debounce = function debounce(func, wait, immediate) {
+ var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window_1;
+
+ var timeout = void 0;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+
+ /* eslint-disable consistent-this */
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+ debounced.cancel = cancel;
+
+ return debounced;
+ };
+
+ /**
+ * @file src/js/event-target.js
+ */
+
+ /**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+ var EventTarget = function EventTarget() {};
+
+ /**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+ /**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+ /**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+ EventTarget.prototype.allowedEvents_ = {};
+
+ /**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+ EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ on(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+ EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+
+ /**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+ EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+ };
+
+ /**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+ EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+
+ /**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+ EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener alialing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ one(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+ EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event;
+
+ if (typeof event === 'string') {
+ event = { type: type };
+ }
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+ };
+
+ /**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+ EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+
+ var EVENT_MAP = void 0;
+
+ EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+
+ map.delete(type);
+ window_1.clearTimeout(oldTimeout);
+
+ var timeout = window_1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP.delete(_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+
+ map.set(type, timeout);
+ };
+
+ /**
+ * @file mixins/evented.js
+ * @module evented
+ */
+
+ /**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+ var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+ };
+
+ /**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+ var isValidEventType = function isValidEventType(type) {
+ return (
+ // The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+ var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+ var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+ var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+ };
+
+ /**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+ var normalizeListenArgs = function normalizeListenArgs(self, args) {
+
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target = void 0;
+ var type = void 0;
+ var listener = void 0;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_;
+
+ // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ listener = bind(self, listener);
+
+ return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };
+ };
+
+ /**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+ var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+ };
+
+ /**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+ var EventedMixin = {
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on$$1() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener);
+
+ // If this object is listening to another evented object.
+ if (!isTargetingSelf) {
+
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ };
+
+ // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+ removeListenerOnDispose.guid = listener.guid;
+
+ // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ removeRemoverOnTargetDispose.guid = listener.guid;
+
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one$$1() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener;
+
+ // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener);
+
+ // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ _this2.off(target, type, wrapper);
+ listener.apply(null, largs);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$$1(targetOrType, typeOrListener, listener) {
+
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener);
+
+ // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener;
+
+ // Fail fast and in a meaningful way!
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ // Ensure there's at least a guid, even if the function hasn't been used
+ listener = bind(this, listener);
+
+ // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @returns {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+ };
+
+ /**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {String} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+ function evented(target) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var eventBusKey = options.eventBusKey;
+
+ // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error('The eventBusKey "' + eventBusKey + '" does not refer to an element.');
+ }
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });
+ }
+
+ assign(target, EventedMixin);
+
+ // When any evented object is disposed, it removes all its listeners.
+ target.on('dispose', function () {
+ target.off();
+ window_1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+
+ return target;
+ }
+
+ /**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+
+ /**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+ var StatefulMixin = {
+
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @returns {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes = void 0;
+
+ each(stateUpdates, function (value, key) {
+
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ });
+
+ // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+ if (changes && isEvented(this)) {
+
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+ };
+
+ /**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @returns {Object}
+ * Returns the `target`.
+ */
+ function stateful(target, defaultState) {
+ assign(target, StatefulMixin);
+
+ // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+ target.state = assign({}, target.state, defaultState);
+
+ // Auto-bind the `handleStateChanged` method of the target object if it exists.
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+ }
+
+ /**
+ * @file to-title-case.js
+ * @module to-title-case
+ */
+
+ /**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+ function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.charAt(0).toUpperCase() + string.slice(1);
+ }
+
+ /**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+ function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+ }
+
+ /**
+ * @file merge-options.js
+ * @module merge-options
+ */
+
+ /**
+ * Deep-merge one or more options objects, recursively merging **only** plain
+ * object properties.
+ *
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @returns {Object}
+ * A new object that is the merged result of all sources.
+ */
+ function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+
+ return result;
+ }
+
+ /**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+
+ /**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+ var Component = function () {
+
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ classCallCheck(this, Component);
+
+
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ }
+
+ // Make a copy of prototype.options_ to protect against overriding defaults
+ this.options_ = mergeOptions({}, this.options_);
+
+ // Updated options with supplied options
+ options = this.options_ = mergeOptions(this.options_, options);
+
+ // Get ID from options or options element if one is supplied
+ this.id_ = options.id || options.el && options.el.id;
+
+ // If there was no ID from the options, generate one
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+
+ this.id_ = id + '_component_' + newGUID();
+ }
+
+ this.name_ = options.name || null;
+
+ // Create element if one wasn't provided in options
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ }
+
+ // if evented is anything except false, we want to mixin in evented
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, { eventBusKey: this.el_ ? 'el_' : null });
+ }
+ stateful(this, this.constructor.defaultState);
+
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+
+ // Add any child components in options
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready);
+ // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Component.prototype.dispose = function dispose() {
+
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({ type: 'dispose', bubbles: false });
+
+ // Dispose all children.
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ }
+
+ // Delete child references
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ removeData(this.el_);
+ this.el_ = null;
+ }
+
+ // remove reference to the player after disposing of the element
+ this.player_ = null;
+ };
+
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+
+
+ Component.prototype.player = function player() {
+ return this.player_;
+ };
+
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Component.prototype.options = function options(obj) {
+ log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');
+
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ };
+
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+
+
+ Component.prototype.el = function el() {
+ return this.el_;
+ };
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ };
+
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+
+
+ Component.prototype.localize = function localize(string, tokens) {
+ var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ };
+
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+
+
+ Component.prototype.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ };
+
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+
+
+ Component.prototype.id = function id() {
+ return this.id_;
+ };
+
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+
+
+ Component.prototype.name = function name() {
+ return this.name_;
+ };
+
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+
+
+ Component.prototype.children = function children() {
+ return this.children_;
+ };
+
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+
+
+ Component.prototype.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ };
+
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+
+
+ Component.prototype.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ return this.childNameIndex_[name];
+ };
+
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+
+
+ Component.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;
+
+ var component = void 0;
+ var componentName = void 0;
+
+ // If child is a string, create component with options
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+
+ var componentClassName = options.componentClass || componentName;
+
+ // Set name through options
+ options.name = componentName;
+
+ // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error('Component ' + componentClassName + ' does not exist');
+ }
+
+ // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options);
+
+ // child is a component instance
+ } else {
+ component = child;
+ }
+
+ this.children_.splice(index, 0, component);
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ }
+
+ // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ }
+
+ // Add the UI object's element to the container div (box)
+ // Having an element is not required
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+
+ this.contentEl().insertBefore(component.el(), refNode);
+ }
+
+ // Return so it can stored on parent object if desired.
+ return component;
+ };
+
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+
+
+ Component.prototype.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[component.name()] = null;
+
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ };
+
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+
+
+ Component.prototype.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts;
+
+ // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ }
+
+ // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+ if (opts === false) {
+ return;
+ }
+
+ // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+ if (opts === true) {
+ opts = {};
+ }
+
+ // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+ opts.playerOptions = _this.options_.playerOptions;
+
+ // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ };
+
+ // Allow for an array of children details to passed in the options
+ var workingChildren = void 0;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren
+ // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name = void 0;
+ var opts = void 0;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return { name: name, opts: opts };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ };
+
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+
+
+ Component.prototype.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ };
+
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+
+
+ Component.prototype.ready = function ready(fn) {
+ var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ };
+
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+
+
+ Component.prototype.triggerReady = function triggerReady() {
+ this.isReady_ = true;
+
+ // Ensure ready is triggered asynchronously
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_;
+
+ // Reset Ready Queue
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ }
+
+ // Allow for using event listeners also
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ready');
+ }, 1);
+ };
+
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$ = function $$$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ };
+
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$$ = function $$$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ };
+
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+
+
+ Component.prototype.hasClass = function hasClass$$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ };
+
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+
+
+ Component.prototype.addClass = function addClass$$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ };
+
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+
+
+ Component.prototype.removeClass = function removeClass$$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ };
+
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+
+
+ Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ };
+
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+
+
+ Component.prototype.show = function show() {
+ this.removeClass('vjs-hidden');
+ };
+
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+
+
+ Component.prototype.hide = function hide() {
+ this.addClass('vjs-hidden');
+ };
+
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ };
+
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ };
+
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+
+
+ Component.prototype.getAttribute = function getAttribute$$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+
+
+ Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ };
+
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+
+
+ Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ };
+
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ };
+
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+
+
+ Component.prototype.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ };
+
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+
+
+ Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ }
+
+ // Check if using css width/height (% or px) and adjust
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ }
+
+ // skipListeners allows us to avoid triggering the resize event when setting both width and height
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ }
+
+ // Not setting a value, so getting it
+ // Make sure element exists
+ if (!this.el_) {
+ return 0;
+ }
+
+ // Get dimension value from style
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ }
+
+ // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ };
+
+ /**
+ * Get the width or the height of the `Component` elements computed style. Uses
+ * `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+
+
+ Component.prototype.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var computedStyle = window_1.getComputedStyle(this.el_);
+
+ computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];
+ }
+
+ // remove 'px' from variable and parse as integer
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+ // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+ if (computedWidthOrHeight === 0) {
+ var rule = 'offset' + toTitleCase(widthOrHeight);
+
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ };
+
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains width and height values of the `Component`s
+ * computed style.
+ *
+ * @return {Component~DimensionObject}
+ * The dimensions of the components element
+ */
+
+
+ Component.prototype.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ };
+
+ /**
+ * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} width
+ * The width of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ };
+
+ /**
+ * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} height
+ * The height of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ };
+
+ /**
+ * Set the focus to this component
+ */
+
+
+ Component.prototype.focus = function focus() {
+ this.el_.focus();
+ };
+
+ /**
+ * Remove the focus from this component
+ */
+
+
+ Component.prototype.blur = function blur() {
+ this.el_.blur();
+ };
+
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+
+
+ Component.prototype.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null;
+
+ // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+ var tapMovementThreshold = 10;
+
+ // The maximum length a touch can be while still being considered a tap
+ var touchTimeThreshold = 200;
+
+ var couldBeTap = void 0;
+
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ };
+ // Record start time so we can detect a tap vs. "touch and hold"
+ touchStart = new Date().getTime();
+ // Reset couldBeTap tracking
+ couldBeTap = true;
+ }
+ });
+
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ };
+
+ // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap);
+
+ // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+ this.on('touchend', function (event) {
+ firstTouch = null;
+ // Proceed only if the touchmove/leave/cancel event didn't happen
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = new Date().getTime() - touchStart;
+
+ // Make sure the touch was less than the threshold to be considered a tap
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+ this.trigger('tap');
+ // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ };
+
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+
+
+ Component.prototype.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ }
+
+ // listener for reporting that the user is active
+ var report = bind(this.player(), this.player().reportUserActivity);
+
+ var touchHolding = void 0;
+
+ this.on('touchstart', function () {
+ report();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(touchHolding);
+ // report at the same interval as activityCheck
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report();
+ // stop the interval that maintains activity if the touch is holding
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ };
+
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+
+
+ Component.prototype.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId, disposeFn;
+
+ fn = bind(this, fn);
+
+ timeoutId = window_1.setTimeout(function () {
+ _this2.off('dispose', disposeFn);
+ fn();
+ }, timeout);
+
+ disposeFn = function disposeFn() {
+ return _this2.clearTimeout(timeoutId);
+ };
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.on('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+
+
+ Component.prototype.clearTimeout = function clearTimeout(timeoutId) {
+ window_1.clearTimeout(timeoutId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.off('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+
+
+ Component.prototype.setInterval = function setInterval(fn, interval) {
+ var _this3 = this;
+
+ fn = bind(this, fn);
+
+ var intervalId = window_1.setInterval(fn, interval);
+
+ var disposeFn = function disposeFn() {
+ return _this3.clearInterval(intervalId);
+ };
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.on('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+
+
+ Component.prototype.clearInterval = function clearInterval(intervalId) {
+ window_1.clearInterval(intervalId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.off('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+
+
+ Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this4 = this;
+
+ // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+ var id, disposeFn;
+
+ if (this.supportsRaf_) {
+ fn = bind(this, fn);
+
+ id = window_1.requestAnimationFrame(function () {
+ _this4.off('dispose', disposeFn);
+ fn();
+ });
+
+ disposeFn = function disposeFn() {
+ return _this4.cancelAnimationFrame(id);
+ };
+
+ disposeFn.guid = 'vjs-raf-' + id;
+ this.on('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.setTimeout(fn, 1000 / 60);
+ };
+
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+
+
+ Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ if (this.supportsRaf_) {
+ window_1.cancelAnimationFrame(id);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-raf-' + id;
+
+ this.off('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.clearTimeout(id);
+ };
+
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error('Illegal component name, "' + name + '"; must be a non-empty string.');
+ }
+
+ var Tech = Component.getComponent('Tech');
+
+ // We need to make sure this check is only done if Tech has been registered.
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason = void 0;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error('Illegal component, "' + name + '"; ' + reason + '.');
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players);
+
+ // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+
+ return ComponentToRegister;
+ };
+
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+
+
+ Component.getComponent = function getComponent(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Component.components_ && Component.components_[name]) {
+ return Component.components_[name];
+ }
+ };
+
+ return Component;
+ }();
+
+ /**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+ Component.prototype.supportsRaf_ = typeof window_1.requestAnimationFrame === 'function' && typeof window_1.cancelAnimationFrame === 'function';
+
+ Component.registerComponent('Component', Component);
+
+ /**
+ * @file browser.js
+ * @module browser
+ */
+
+ var USER_AGENT = window_1.navigator && window_1.navigator.userAgent || '';
+ var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+ var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+
+ /*
+ * Device is an iPhone
+ *
+ * @type {Boolean}
+ * @constant
+ * @private
+ */
+ var IS_IPAD = /iPad/i.test(USER_AGENT);
+
+ // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+ // to identify iPhones, we need to exclude iPads.
+ // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+ var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+ var IS_IPOD = /iPod/i.test(USER_AGENT);
+ var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+ var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+ return null;
+ }();
+
+ var IS_ANDROID = /Android/i.test(USER_AGENT);
+ var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+ return null;
+ }();
+
+ var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+
+ var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+ var IS_EDGE = /Edge/i.test(USER_AGENT);
+ var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+ var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+ return null;
+ }();
+ var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+ }();
+
+ var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+ var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+ var TOUCH_ENABLED = isReal() && ('ontouchstart' in window_1 || window_1.navigator.maxTouchPoints || window_1.DocumentTouch && window_1.document instanceof window_1.DocumentTouch);
+
+ var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ TOUCH_ENABLED: TOUCH_ENABLED
+ });
+
+ /**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+ /**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @function time-ranges:indexFunction
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @depricated index must be set to a value, in the future this will throw an error.
+ */
+
+ /**
+ * An object that contains ranges of time for various reasons.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this Object
+ *
+ * @property {time-ranges:indexFunction} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {time-ranges:indexFunction} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+ /**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+ function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error('Failed to execute \'' + fnName + '\' on \'TimeRanges\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');
+ }
+ }
+
+ /**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ *
+ * @depricated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+ function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+ }
+
+ /**
+ * Create a time range object given ranges of time.
+ *
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+ function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+ }
+
+ /**
+ * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.
+ *
+ * @param {number|Array} start
+ * The start of a single range or an array of ranges
+ *
+ * @param {number} end
+ * The end of a single range.
+ *
+ * @private
+ */
+ function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+ return createTimeRangesObj([[start, end]]);
+ }
+
+ /**
+ * @file buffer.js
+ * @module buffer
+ */
+
+ /**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+ function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start = void 0;
+ var end = void 0;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i);
+
+ // buffered end can be bigger than duration by a very small fraction
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+ }
+
+ /**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+
+ /**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+ var FullscreenApi = {};
+
+ // browser API methods
+ var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
+ // WebKit
+ ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Old WebKit (Safari 5.1)
+ ['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Mozilla
+ ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
+ // Microsoft
+ ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];
+
+ var specApi = apiMap[0];
+ var browserApi = void 0;
+
+ // determine the supported set of functions
+ for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document_1) {
+ browserApi = apiMap[i];
+ break;
+ }
+ }
+
+ // map the browser API names to the spec API names
+ if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+ }
+
+ /**
+ * @file media-error.js
+ */
+
+ /**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+ function MediaError(value) {
+
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+ }
+
+ /**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+ MediaError.prototype.code = 0;
+
+ /**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+ MediaError.prototype.message = '';
+
+ /**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+ MediaError.prototype.status = null;
+
+ /**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_CUSTOM
+ * @property {string} 2 - MEDIA_ERR_ABORTED
+ * @property {string} 3 - MEDIA_ERR_NETWORK
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+ MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+ /**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+ MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+ };
+
+ // Add types as properties on MediaError
+ // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+ for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum;
+ // values should be accessible on both the class and instance
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+ }
+
+ var tuple = SafeParseTuple;
+
+ function SafeParseTuple(obj, reviver) {
+ var json;
+ var error = null;
+
+ try {
+ json = JSON.parse(obj, reviver);
+ } catch (err) {
+ error = err;
+ }
+
+ return [error, json];
+ }
+
+ /**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {Boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+ function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+ }
+
+ /**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+ function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+ }
+
+ /**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+ /**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+ var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+
+ return ret;
+ };
+
+ /**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+ var textTracksToJson = function textTracksToJson(tech) {
+
+ var trackEls = tech.$$('track');
+
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+ return json;
+ });
+
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+ };
+
+ /**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+ var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+
+ return tech.textTracks();
+ };
+
+ var textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };
+
+ /**
+ * @file modal-dialog.js
+ */
+
+ var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+ var ESC = 27;
+
+ /**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+ var ModalDialog = function (_Component) {
+ inherits(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ classCallCheck(this, ModalDialog);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+ _this.content(_this.options_.content);
+
+ // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + '-content'
+ }, {
+ role: 'document'
+ });
+
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + '-description vjs-control-text',
+ id: _this.el().getAttribute('aria-describedby')
+ });
+
+ textContent(_this.descEl_, _this.description());
+ _this.el_.appendChild(_this.descEl_);
+ _this.el_.appendChild(_this.contentEl_);
+ return _this;
+ }
+
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ ModalDialog.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + '_description',
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ ModalDialog.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles `keydown` events on the document, looking for ESC, which closes
+ * the modal.
+ *
+ * @param {EventTarget~Event} e
+ * The keypress that triggered this event.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
+ if (e.which === ESC && this.closeable()) {
+ this.close();
+ }
+ };
+
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+
+
+ ModalDialog.prototype.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ };
+
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+
+
+ ModalDialog.prototype.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.');
+
+ // Append a universal closeability message if the modal is closeable.
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ };
+
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+
+
+ ModalDialog.prototype.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalopen');
+ this.opened_ = true;
+
+ // Fill content if the modal has never opened before and
+ // never been filled.
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ }
+
+ // If the player was playing, pause it and take note of its previously
+ // playing state.
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ if (this.closeable()) {
+ this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ // Hide controls and note if they were enabled.
+ this.hadControls_ = player.controls();
+ player.controls(false);
+
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ };
+
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+
+
+ ModalDialog.prototype.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+ return this.opened_;
+ };
+
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+
+
+ ModalDialog.prototype.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ if (this.closeable()) {
+ this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ };
+
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+
+
+ ModalDialog.prototype.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton');
+
+ // If this is being made closeable and has no close button, add one.
+ if (closeable && !close) {
+
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ }
+
+ // If this is being made uncloseable and has a close button, remove it.
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+ return this.closeable_;
+ };
+
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+
+
+ ModalDialog.prototype.fill = function fill() {
+ this.fillWith(this.content());
+ };
+
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+
+
+ ModalDialog.prototype.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true;
+
+ // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalfill');
+
+ // Re-inject the re-filled content element.
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ }
+
+ // make sure that the close button is last in the dialog DOM
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ };
+
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+
+
+ ModalDialog.prototype.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalempty');
+ };
+
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+
+
+ ModalDialog.prototype.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+ return this.content_;
+ };
+
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document_1.activeElement;
+ var playerEl = this.player_.el_;
+
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+
+ this.focus();
+
+ this.on(document_1, 'keydown', this.handleKeyDown);
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+
+ this.off(document_1, 'keydown', this.handleKeyDown);
+ };
+
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {
+ // exit early if it isn't a tab key
+ if (event.which !== 9) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex = void 0;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document_1.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ };
+
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window_1.HTMLAnchorElement || child instanceof window_1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window_1.HTMLInputElement || child instanceof window_1.HTMLSelectElement || child instanceof window_1.HTMLTextAreaElement || child instanceof window_1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window_1.HTMLIFrameElement || child instanceof window_1.HTMLObjectElement || child instanceof window_1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+ }(Component);
+
+ /**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+ };
+
+ Component.registerComponent('ModalDialog', ModalDialog);
+
+ /**
+ * @file track-list.js
+ */
+
+ /**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+ var TrackList = function (_EventTarget) {
+ inherits(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, TrackList);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ _this.tracks_ = [];
+
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(_this, 'length', {
+ get: function get$$1() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+ return _this;
+ }
+
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ TrackList.prototype.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.tracks_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate tracks
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+ this.trigger({
+ track: track,
+ type: 'addtrack'
+ });
+ }
+ };
+
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+
+
+ TrackList.prototype.removeTrack = function removeTrack(rtrack) {
+ var track = void 0;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+ this.trigger({
+ track: track,
+ type: 'removetrack'
+ });
+ };
+
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {String} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+
+
+ TrackList.prototype.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+ }(EventTarget);
+
+ /**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+ TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+ };
+
+ // emulate attribute EventHandler support to allow for feature detection
+ for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+ }
+
+ /**
+ * @file audio-track-list.js
+ */
+
+ /**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another audio track is enabled, disable it
+ list[i].enabled = false;
+ }
+ };
+
+ /**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+ var AudioTrackList = function (_TrackList) {
+ inherits(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, AudioTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+ return _this;
+ }
+
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ AudioTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('enabledchange', function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return AudioTrackList;
+ }(TrackList);
+
+ /**
+ * @file video-track-list.js
+ */
+
+ /**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another video track is enabled, disable it
+ list[i].selected = false;
+ }
+ };
+
+ /**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+ var VideoTrackList = function (_TrackList) {
+ inherits(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, VideoTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+ Object.defineProperty(_this, 'selectedIndex', {
+ get: function get$$1() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+ return -1;
+ },
+ set: function set$$1() {}
+ });
+ return _this;
+ }
+
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ VideoTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('selectedchange', function () {
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return VideoTrackList;
+ }(TrackList);
+
+ /**
+ * @file text-track-list.js
+ */
+
+ /**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+ var TextTrackList = function (_TrackList) {
+ inherits(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ classCallCheck(this, TextTrackList);
+ return possibleConstructorReturn(this, _TrackList.apply(this, arguments));
+ }
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ TextTrackList.prototype.addTrack = function addTrack(track) {
+ _TrackList.prototype.addTrack.call(this, track);
+
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+ track.addEventListener('modechange', bind(this, function () {
+ this.queueTrigger('change');
+ }));
+
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', bind(this, function () {
+ this.trigger('selectedlanguagechange');
+ }));
+ }
+ };
+
+ return TextTrackList;
+ }(TrackList);
+
+ /**
+ * @file html-track-element-list.js
+ */
+
+ /**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+ var HtmlTrackElementList = function () {
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList() {
+ var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, HtmlTrackElementList);
+
+ this.trackElements_ = [];
+
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.trackElements_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate elements
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ };
+
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_ = void 0;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+
+ break;
+ }
+ }
+
+ return trackElement_;
+ };
+
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ this.trackElements_.splice(i, 1);
+
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+ }();
+
+ /**
+ * @file text-track-cue-list.js
+ */
+
+ /**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+ /**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+ var TextTrackCueList = function () {
+
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ classCallCheck(this, TextTrackCueList);
+
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.length_;
+ }
+ });
+ }
+
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ TextTrackCueList.prototype.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get$$1() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ };
+
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+
+
+ TextTrackCueList.prototype.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+ }();
+
+ /**
+ * @file track-kinds.js
+ */
+
+ /**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+ var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+ };
+
+ /**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+ var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+ };
+
+ /**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+ var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+ };
+
+ /**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+ var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+ };
+
+ /**
+ * @file track.js
+ */
+
+ /**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+ var Track = function (_EventTarget) {
+ inherits(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, Track);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_this, key, {
+ get: function get$$1() {
+ return trackProps[key];
+ },
+ set: function set$$1() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+ return _this;
+ }
+
+ return Track;
+ }(EventTarget);
+
+ /**
+ * @file url.js
+ * @module url
+ */
+
+ /**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+ /**
+ * Resolve and parse the elements of a URL.
+ *
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+ var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+ // add the url to an anchor and let the browser parse the URL
+ var a = document_1.createElement('a');
+
+ a.href = url;
+
+ // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div = void 0;
+
+ if (addToBody) {
+ div = document_1.createElement('div');
+ div.innerHTML = '<a href="' + url + '"></a>';
+ a = div.firstChild;
+ // prevent the div from affecting layout
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document_1.body.appendChild(div);
+ }
+
+ // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ }
+
+ // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window_1.location.protocol;
+ }
+
+ if (addToBody) {
+ document_1.body.removeChild(div);
+ }
+
+ return details;
+ };
+
+ /**
+ * Get absolute version of relative URL. Used to tell flash correct URL.
+ *
+ *
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+ var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document_1.createElement('div');
+
+ div.innerHTML = '<a href="' + url + '">x</a>';
+ url = div.firstChild.href;
+ }
+
+ return url;
+ };
+
+ /**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @returns {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+ var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+ var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window_1.location;
+ var urlInfo = parseUrl(url);
+
+ // IE8 protocol relative urls will return ':' for protocol
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
+
+ // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+
+ return crossOrigin;
+ };
+
+ var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+ });
+
+ var isFunction_1 = isFunction;
+
+ var toString$1 = Object.prototype.toString;
+
+ function isFunction(fn) {
+ var string = toString$1.call(fn);
+ return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (
+ // IE8 and below
+ fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
+ }
+
+ var trim_1 = createCommonjsModule(function (module, exports) {
+ exports = module.exports = trim;
+
+ function trim(str) {
+ return str.replace(/^\s*|\s*$/g, '');
+ }
+
+ exports.left = function (str) {
+ return str.replace(/^\s*/, '');
+ };
+
+ exports.right = function (str) {
+ return str.replace(/\s*$/, '');
+ };
+ });
+ var trim_2 = trim_1.left;
+ var trim_3 = trim_1.right;
+
+ var forEach_1 = forEach;
+
+ var toString$2 = Object.prototype.toString;
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+ function forEach(list, iterator, context) {
+ if (!isFunction_1(iterator)) {
+ throw new TypeError('iterator must be a function');
+ }
+
+ if (arguments.length < 3) {
+ context = this;
+ }
+
+ if (toString$2.call(list) === '[object Array]') forEachArray(list, iterator, context);else if (typeof list === 'string') forEachString(list, iterator, context);else forEachObject(list, iterator, context);
+ }
+
+ function forEachArray(array, iterator, context) {
+ for (var i = 0, len = array.length; i < len; i++) {
+ if (hasOwnProperty.call(array, i)) {
+ iterator.call(context, array[i], i, array);
+ }
+ }
+ }
+
+ function forEachString(string, iterator, context) {
+ for (var i = 0, len = string.length; i < len; i++) {
+ // no such thing as a sparse string.
+ iterator.call(context, string.charAt(i), i, string);
+ }
+ }
+
+ function forEachObject(object, iterator, context) {
+ for (var k in object) {
+ if (hasOwnProperty.call(object, k)) {
+ iterator.call(context, object[k], k, object);
+ }
+ }
+ }
+
+ var isArray = function isArray(arg) {
+ return Object.prototype.toString.call(arg) === '[object Array]';
+ };
+
+ var parseHeaders = function parseHeaders(headers) {
+ if (!headers) return {};
+
+ var result = {};
+
+ forEach_1(trim_1(headers).split('\n'), function (row) {
+ var index = row.indexOf(':'),
+ key = trim_1(row.slice(0, index)).toLowerCase(),
+ value = trim_1(row.slice(index + 1));
+
+ if (typeof result[key] === 'undefined') {
+ result[key] = value;
+ } else if (isArray(result[key])) {
+ result[key].push(value);
+ } else {
+ result[key] = [result[key], value];
+ }
+ });
+
+ return result;
+ };
+
+ var immutable = extend;
+
+ var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+
+ function extend() {
+ var target = {};
+
+ for (var i = 0; i < arguments.length; i++) {
+ var source = arguments[i];
+
+ for (var key in source) {
+ if (hasOwnProperty$1.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+
+ return target;
+ }
+
+ var xhr = createXHR;
+ createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop;
+ createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
+
+ forEachArray$1(["get", "put", "post", "patch", "head", "delete"], function (method) {
+ createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
+ options = initParams(uri, options, callback);
+ options.method = method.toUpperCase();
+ return _createXHR(options);
+ };
+ });
+
+ function forEachArray$1(array, iterator) {
+ for (var i = 0; i < array.length; i++) {
+ iterator(array[i]);
+ }
+ }
+
+ function isEmpty(obj) {
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) return false;
+ }
+ return true;
+ }
+
+ function initParams(uri, options, callback) {
+ var params = uri;
+
+ if (isFunction_1(options)) {
+ callback = options;
+ if (typeof uri === "string") {
+ params = { uri: uri };
+ }
+ } else {
+ params = immutable(options, { uri: uri });
+ }
+
+ params.callback = callback;
+ return params;
+ }
+
+ function createXHR(uri, options, callback) {
+ options = initParams(uri, options, callback);
+ return _createXHR(options);
+ }
+
+ function _createXHR(options) {
+ if (typeof options.callback === "undefined") {
+ throw new Error("callback argument missing");
+ }
+
+ var called = false;
+ var callback = function cbOnce(err, response, body) {
+ if (!called) {
+ called = true;
+ options.callback(err, response, body);
+ }
+ };
+
+ function readystatechange() {
+ if (xhr.readyState === 4) {
+ setTimeout(loadFunc, 0);
+ }
+ }
+
+ function getBody() {
+ // Chrome with requestType=blob throws errors arround when even testing access to responseText
+ var body = undefined;
+
+ if (xhr.response) {
+ body = xhr.response;
+ } else {
+ body = xhr.responseText || getXml(xhr);
+ }
+
+ if (isJson) {
+ try {
+ body = JSON.parse(body);
+ } catch (e) {}
+ }
+
+ return body;
+ }
+
+ function errorFunc(evt) {
+ clearTimeout(timeoutTimer);
+ if (!(evt instanceof Error)) {
+ evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
+ }
+ evt.statusCode = 0;
+ return callback(evt, failureResponse);
+ }
+
+ // will load the data & process the response in a special response object
+ function loadFunc() {
+ if (aborted) return;
+ var status;
+ clearTimeout(timeoutTimer);
+ if (options.useXDR && xhr.status === undefined) {
+ //IE8 CORS GET successful response doesn't have a status field, but body is fine
+ status = 200;
+ } else {
+ status = xhr.status === 1223 ? 204 : xhr.status;
+ }
+ var response = failureResponse;
+ var err = null;
+
+ if (status !== 0) {
+ response = {
+ body: getBody(),
+ statusCode: status,
+ method: method,
+ headers: {},
+ url: uri,
+ rawRequest: xhr
+ };
+ if (xhr.getAllResponseHeaders) {
+ //remember xhr can in fact be XDR for CORS in IE
+ response.headers = parseHeaders(xhr.getAllResponseHeaders());
+ }
+ } else {
+ err = new Error("Internal XMLHttpRequest Error");
+ }
+ return callback(err, response, response.body);
+ }
+
+ var xhr = options.xhr || null;
+
+ if (!xhr) {
+ if (options.cors || options.useXDR) {
+ xhr = new createXHR.XDomainRequest();
+ } else {
+ xhr = new createXHR.XMLHttpRequest();
+ }
+ }
+
+ var key;
+ var aborted;
+ var uri = xhr.url = options.uri || options.url;
+ var method = xhr.method = options.method || "GET";
+ var body = options.body || options.data;
+ var headers = xhr.headers = options.headers || {};
+ var sync = !!options.sync;
+ var isJson = false;
+ var timeoutTimer;
+ var failureResponse = {
+ body: undefined,
+ headers: {},
+ statusCode: 0,
+ method: method,
+ url: uri,
+ rawRequest: xhr
+ };
+
+ if ("json" in options && options.json !== false) {
+ isJson = true;
+ headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
+ if (method !== "GET" && method !== "HEAD") {
+ headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
+ body = JSON.stringify(options.json === true ? body : options.json);
+ }
+ }
+
+ xhr.onreadystatechange = readystatechange;
+ xhr.onload = loadFunc;
+ xhr.onerror = errorFunc;
+ // IE9 must have onprogress be set to a unique function.
+ xhr.onprogress = function () {
+ // IE must die
+ };
+ xhr.onabort = function () {
+ aborted = true;
+ };
+ xhr.ontimeout = errorFunc;
+ xhr.open(method, uri, !sync, options.username, options.password);
+ //has to be after open
+ if (!sync) {
+ xhr.withCredentials = !!options.withCredentials;
+ }
+ // Cannot set timeout with sync request
+ // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
+ // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
+ if (!sync && options.timeout > 0) {
+ timeoutTimer = setTimeout(function () {
+ if (aborted) return;
+ aborted = true; //IE9 may still call readystatechange
+ xhr.abort("timeout");
+ var e = new Error("XMLHttpRequest timeout");
+ e.code = "ETIMEDOUT";
+ errorFunc(e);
+ }, options.timeout);
+ }
+
+ if (xhr.setRequestHeader) {
+ for (key in headers) {
+ if (headers.hasOwnProperty(key)) {
+ xhr.setRequestHeader(key, headers[key]);
+ }
+ }
+ } else if (options.headers && !isEmpty(options.headers)) {
+ throw new Error("Headers cannot be set on an XDomainRequest object");
+ }
+
+ if ("responseType" in options) {
+ xhr.responseType = options.responseType;
+ }
+
+ if ("beforeSend" in options && typeof options.beforeSend === "function") {
+ options.beforeSend(xhr);
+ }
+
+ // Microsoft Edge browser sends "undefined" when send is called with undefined value.
+ // XMLHttpRequest spec says to pass null as body to indicate no body
+ // See https://github.com/naugtur/xhr/issues/100.
+ xhr.send(body || null);
+
+ return xhr;
+ }
+
+ function getXml(xhr) {
+ if (xhr.responseType === "document") {
+ return xhr.responseXML;
+ }
+ var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
+ if (xhr.responseType === "" && !firefoxBugTakenEffect) {
+ return xhr.responseXML;
+ }
+
+ return null;
+ }
+
+ function noop() {}
+
+ /**
+ * @file text-track.js
+ */
+
+ /**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+ var parseCues = function parseCues(srcContent, track) {
+ var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, window_1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (window_1.console && window_1.console.groupCollapsed) {
+ window_1.console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return log$1.error(error);
+ });
+ if (window_1.console && window_1.console.groupEnd) {
+ window_1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+ };
+
+ /**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+ var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ xhr(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log$1.error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof window_1.WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ log$1.error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+ };
+
+ /**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+ var TextTrack = function (_Track) {
+ inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings.default;
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ _this.tech_ = settings.tech;
+
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_this, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_this, {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ default: {
+ get: function get$$1() {
+ return default_;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get$$1() {
+ return mode;
+ },
+ set: function set$$1(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+
+
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set$$1() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _this);
+ } else {
+ _this.loaded_ = true;
+ }
+ return _this;
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window_1.vttjs && !(originalCue instanceof window_1.vttjs.VTTCue)) {
+ cue = new window_1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+ }(Track);
+
+ /**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+ TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+ };
+
+ /**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+ var AudioTrack = function (_Track) {
+ inherits(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, AudioTrack);
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var enabled = false;
+
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'enabled', {
+ get: function get$$1() {
+ return enabled;
+ },
+ set: function set$$1(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+ enabled = newEnabled;
+
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enabledchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+ }(Track);
+
+ /**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+ var VideoTrack = function (_Track) {
+ inherits(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, VideoTrack);
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var selected = false;
+
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'selected', {
+ get: function get$$1() {
+ return selected;
+ },
+ set: function set$$1(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+ selected = newSelected;
+
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('selectedchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+ return _this;
+ }
+
+ return VideoTrack;
+ }(Track);
+
+ /**
+ * @file html-track-element.js
+ */
+
+ /**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+ var NONE = 0;
+ var LOADING = 1;
+ var LOADED = 2;
+ var ERROR = 3;
+
+ /**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+ var HTMLTrackElement = function (_EventTarget) {
+ inherits(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, HTMLTrackElement);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var readyState = void 0;
+
+ var track = new TextTrack(options);
+
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this.default = track.default;
+
+ Object.defineProperties(_this, {
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get$$1() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get$$1() {
+ return track;
+ }
+ }
+ });
+
+ readyState = NONE;
+
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _this
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+ }(EventTarget);
+
+ HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+ };
+
+ HTMLTrackElement.NONE = NONE;
+ HTMLTrackElement.LOADING = LOADING;
+ HTMLTrackElement.LOADED = LOADED;
+ HTMLTrackElement.ERROR = ERROR;
+
+ /*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+ var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+ };
+
+ Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + 'Tracks';
+ NORMAL[type].privateName = type + 'Tracks_';
+ });
+
+ var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+ };
+
+ var ALL = mergeOptions(NORMAL, REMOTE);
+
+ REMOTE.names = Object.keys(REMOTE);
+ NORMAL.names = Object.keys(NORMAL);
+ ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+ /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+ var _objCreate = Object.create || function () {
+ function F() {}
+ return function (o) {
+ if (arguments.length !== 1) {
+ throw new Error('Object.create shim only accepts one parameter.');
+ }
+ F.prototype = o;
+ return new F();
+ };
+ }();
+
+ // Creates a new ParserError object from an errorData object. The errorData
+ // object should have default code and message properties. The default message
+ // property can be overriden by passing in a message parameter.
+ // See ParsingError.Errors below for acceptable errors.
+ function ParsingError(errorData, message) {
+ this.name = "ParsingError";
+ this.code = errorData.code;
+ this.message = message || errorData.message;
+ }
+ ParsingError.prototype = _objCreate(Error.prototype);
+ ParsingError.prototype.constructor = ParsingError;
+
+ // ParsingError metadata for acceptable ParsingErrors.
+ ParsingError.Errors = {
+ BadSignature: {
+ code: 0,
+ message: "Malformed WebVTT signature."
+ },
+ BadTimeStamp: {
+ code: 1,
+ message: "Malformed time stamp."
+ }
+ };
+
+ // Try to parse input as a time stamp.
+ function parseTimeStamp(input) {
+
+ function computeSeconds(h, m, s, f) {
+ return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;
+ }
+
+ var m = input.match(/^(\d+):(\d{2})(:\d{2})?\.(\d{3})/);
+ if (!m) {
+ return null;
+ }
+
+ if (m[3]) {
+ // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]
+ return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]);
+ } else if (m[1] > 59) {
+ // Timestamp takes the form of [hours]:[minutes].[milliseconds]
+ // First position is hours as it's over 59.
+ return computeSeconds(m[1], m[2], 0, m[4]);
+ } else {
+ // Timestamp takes the form of [minutes]:[seconds].[milliseconds]
+ return computeSeconds(0, m[1], m[2], m[4]);
+ }
+ }
+
+ // A settings object holds key/value pairs and will ignore anything but the first
+ // assignment to a specific key.
+ function Settings() {
+ this.values = _objCreate(null);
+ }
+
+ Settings.prototype = {
+ // Only accept the first assignment to any key.
+ set: function set(k, v) {
+ if (!this.get(k) && v !== "") {
+ this.values[k] = v;
+ }
+ },
+ // Return the value for a key, or a default value.
+ // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
+ // a number of possible default values as properties where 'defaultKey' is
+ // the key of the property that will be chosen; otherwise it's assumed to be
+ // a single value.
+ get: function get(k, dflt, defaultKey) {
+ if (defaultKey) {
+ return this.has(k) ? this.values[k] : dflt[defaultKey];
+ }
+ return this.has(k) ? this.values[k] : dflt;
+ },
+ // Check whether we have a value for a key.
+ has: function has(k) {
+ return k in this.values;
+ },
+ // Accept a setting if its one of the given alternatives.
+ alt: function alt(k, v, a) {
+ for (var n = 0; n < a.length; ++n) {
+ if (v === a[n]) {
+ this.set(k, v);
+ break;
+ }
+ }
+ },
+ // Accept a setting if its a valid (signed) integer.
+ integer: function integer(k, v) {
+ if (/^-?\d+$/.test(v)) {
+ // integer
+ this.set(k, parseInt(v, 10));
+ }
+ },
+ // Accept a setting if its a valid percentage.
+ percent: function percent(k, v) {
+ var m;
+ if (m = v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) {
+ v = parseFloat(v);
+ if (v >= 0 && v <= 100) {
+ this.set(k, v);
+ return true;
+ }
+ }
+ return false;
+ }
+ };
+
+ // Helper function to parse input into groups separated by 'groupDelim', and
+ // interprete each group as a key/value pair separated by 'keyValueDelim'.
+ function parseOptions(input, callback, keyValueDelim, groupDelim) {
+ var groups = groupDelim ? input.split(groupDelim) : [input];
+ for (var i in groups) {
+ if (typeof groups[i] !== "string") {
+ continue;
+ }
+ var kv = groups[i].split(keyValueDelim);
+ if (kv.length !== 2) {
+ continue;
+ }
+ var k = kv[0];
+ var v = kv[1];
+ callback(k, v);
+ }
+ }
+
+ function parseCue(input, cue, regionList) {
+ // Remember the original input if we need to throw an error.
+ var oInput = input;
+ // 4.1 WebVTT timestamp
+ function consumeTimeStamp() {
+ var ts = parseTimeStamp(input);
+ if (ts === null) {
+ throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed timestamp: " + oInput);
+ }
+ // Remove time stamp from input.
+ input = input.replace(/^[^\sa-zA-Z-]+/, "");
+ return ts;
+ }
+
+ // 4.4.2 WebVTT cue settings
+ function consumeCueSettings(input, cue) {
+ var settings = new Settings();
+
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "region":
+ // Find the last region we parsed with the same region id.
+ for (var i = regionList.length - 1; i >= 0; i--) {
+ if (regionList[i].id === v) {
+ settings.set(k, regionList[i].region);
+ break;
+ }
+ }
+ break;
+ case "vertical":
+ settings.alt(k, v, ["rl", "lr"]);
+ break;
+ case "line":
+ var vals = v.split(","),
+ vals0 = vals[0];
+ settings.integer(k, vals0);
+ settings.percent(k, vals0) ? settings.set("snapToLines", false) : null;
+ settings.alt(k, vals0, ["auto"]);
+ if (vals.length === 2) {
+ settings.alt("lineAlign", vals[1], ["start", "middle", "end"]);
+ }
+ break;
+ case "position":
+ vals = v.split(",");
+ settings.percent(k, vals[0]);
+ if (vals.length === 2) {
+ settings.alt("positionAlign", vals[1], ["start", "middle", "end"]);
+ }
+ break;
+ case "size":
+ settings.percent(k, v);
+ break;
+ case "align":
+ settings.alt(k, v, ["start", "middle", "end", "left", "right"]);
+ break;
+ }
+ }, /:/, /\s/);
+
+ // Apply default values for any missing fields.
+ cue.region = settings.get("region", null);
+ cue.vertical = settings.get("vertical", "");
+ cue.line = settings.get("line", "auto");
+ cue.lineAlign = settings.get("lineAlign", "start");
+ cue.snapToLines = settings.get("snapToLines", true);
+ cue.size = settings.get("size", 100);
+ cue.align = settings.get("align", "middle");
+ cue.position = settings.get("position", {
+ start: 0,
+ left: 0,
+ middle: 50,
+ end: 100,
+ right: 100
+ }, cue.align);
+ cue.positionAlign = settings.get("positionAlign", {
+ start: "start",
+ left: "start",
+ middle: "middle",
+ end: "end",
+ right: "end"
+ }, cue.align);
+ }
+
+ function skipWhitespace() {
+ input = input.replace(/^\s+/, "");
+ }
+
+ // 4.1 WebVTT cue timings.
+ skipWhitespace();
+ cue.startTime = consumeTimeStamp(); // (1) collect cue start time
+ skipWhitespace();
+ if (input.substr(0, 3) !== "-->") {
+ // (3) next characters must match "-->"
+ throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed time stamp (time stamps must be separated by '-->'): " + oInput);
+ }
+ input = input.substr(3);
+ skipWhitespace();
+ cue.endTime = consumeTimeStamp(); // (5) collect cue end time
+
+ // 4.1 WebVTT cue settings list.
+ skipWhitespace();
+ consumeCueSettings(input, cue);
+ }
+
+ var ESCAPE = {
+ "&amp;": "&",
+ "&lt;": "<",
+ "&gt;": ">",
+ "&lrm;": "\u200E",
+ "&rlm;": "\u200F",
+ "&nbsp;": "\xA0"
+ };
+
+ var TAG_NAME = {
+ c: "span",
+ i: "i",
+ b: "b",
+ u: "u",
+ ruby: "ruby",
+ rt: "rt",
+ v: "span",
+ lang: "span"
+ };
+
+ var TAG_ANNOTATION = {
+ v: "title",
+ lang: "lang"
+ };
+
+ var NEEDS_PARENT = {
+ rt: "ruby"
+ };
+
+ // Parse content into a document fragment.
+ function parseContent(window, input) {
+ function nextToken() {
+ // Check for end-of-string.
+ if (!input) {
+ return null;
+ }
+
+ // Consume 'n' characters from the input.
+ function consume(result) {
+ input = input.substr(result.length);
+ return result;
+ }
+
+ var m = input.match(/^([^<]*)(<[^>]*>?)?/);
+ // If there is some text before the next tag, return it, otherwise return
+ // the tag.
+ return consume(m[1] ? m[1] : m[2]);
+ }
+
+ // Unescape a string 's'.
+ function unescape1(e) {
+ return ESCAPE[e];
+ }
+ function unescape(s) {
+ while (m = s.match(/&(amp|lt|gt|lrm|rlm|nbsp);/)) {
+ s = s.replace(m[0], unescape1);
+ }
+ return s;
+ }
+
+ function shouldAdd(current, element) {
+ return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;
+ }
+
+ // Create an element for this tag.
+ function createElement(type, annotation) {
+ var tagName = TAG_NAME[type];
+ if (!tagName) {
+ return null;
+ }
+ var element = window.document.createElement(tagName);
+ element.localName = tagName;
+ var name = TAG_ANNOTATION[type];
+ if (name && annotation) {
+ element[name] = annotation.trim();
+ }
+ return element;
+ }
+
+ var rootDiv = window.document.createElement("div"),
+ current = rootDiv,
+ t,
+ tagStack = [];
+
+ while ((t = nextToken()) !== null) {
+ if (t[0] === '<') {
+ if (t[1] === "/") {
+ // If the closing tag matches, move back up to the parent node.
+ if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) {
+ tagStack.pop();
+ current = current.parentNode;
+ }
+ // Otherwise just ignore the end tag.
+ continue;
+ }
+ var ts = parseTimeStamp(t.substr(1, t.length - 2));
+ var node;
+ if (ts) {
+ // Timestamps are lead nodes as well.
+ node = window.document.createProcessingInstruction("timestamp", ts);
+ current.appendChild(node);
+ continue;
+ }
+ var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/);
+ // If we can't parse the tag, skip to the next tag.
+ if (!m) {
+ continue;
+ }
+ // Try to construct an element, and ignore the tag if we couldn't.
+ node = createElement(m[1], m[3]);
+ if (!node) {
+ continue;
+ }
+ // Determine if the tag should be added based on the context of where it
+ // is placed in the cuetext.
+ if (!shouldAdd(current, node)) {
+ continue;
+ }
+ // Set the class list (as a list of classes, separated by space).
+ if (m[2]) {
+ node.className = m[2].substr(1).replace('.', ' ');
+ }
+ // Append the node to the current node, and enter the scope of the new
+ // node.
+ tagStack.push(m[1]);
+ current.appendChild(node);
+ current = node;
+ continue;
+ }
+
+ // Text nodes are leaf nodes.
+ current.appendChild(window.document.createTextNode(unescape(t)));
+ }
+
+ return rootDiv;
+ }
+
+ // This is a list of all the Unicode characters that have a strong
+ // right-to-left category. What this means is that these characters are
+ // written right-to-left for sure. It was generated by pulling all the strong
+ // right-to-left characters out of the Unicode data table. That table can
+ // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
+ var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];
+
+ function isStrongRTLChar(charCode) {
+ for (var i = 0; i < strongRTLRanges.length; i++) {
+ var currentRange = strongRTLRanges[i];
+ if (charCode >= currentRange[0] && charCode <= currentRange[1]) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ function determineBidi(cueDiv) {
+ var nodeStack = [],
+ text = "",
+ charCode;
+
+ if (!cueDiv || !cueDiv.childNodes) {
+ return "ltr";
+ }
+
+ function pushNodes(nodeStack, node) {
+ for (var i = node.childNodes.length - 1; i >= 0; i--) {
+ nodeStack.push(node.childNodes[i]);
+ }
+ }
+
+ function nextTextNode(nodeStack) {
+ if (!nodeStack || !nodeStack.length) {
+ return null;
+ }
+
+ var node = nodeStack.pop(),
+ text = node.textContent || node.innerText;
+ if (text) {
+ // TODO: This should match all unicode type B characters (paragraph
+ // separator characters). See issue #115.
+ var m = text.match(/^.*(\n|\r)/);
+ if (m) {
+ nodeStack.length = 0;
+ return m[0];
+ }
+ return text;
+ }
+ if (node.tagName === "ruby") {
+ return nextTextNode(nodeStack);
+ }
+ if (node.childNodes) {
+ pushNodes(nodeStack, node);
+ return nextTextNode(nodeStack);
+ }
+ }
+
+ pushNodes(nodeStack, cueDiv);
+ while (text = nextTextNode(nodeStack)) {
+ for (var i = 0; i < text.length; i++) {
+ charCode = text.charCodeAt(i);
+ if (isStrongRTLChar(charCode)) {
+ return "rtl";
+ }
+ }
+ }
+ return "ltr";
+ }
+
+ function computeLinePos(cue) {
+ if (typeof cue.line === "number" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {
+ return cue.line;
+ }
+ if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {
+ return -1;
+ }
+ var track = cue.track,
+ trackList = track.textTrackList,
+ count = 0;
+ for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {
+ if (trackList[i].mode === "showing") {
+ count++;
+ }
+ }
+ return ++count * -1;
+ }
+
+ function StyleBox() {}
+
+ // Apply styles to a div. If there is no div passed then it defaults to the
+ // div on 'this'.
+ StyleBox.prototype.applyStyles = function (styles, div) {
+ div = div || this.div;
+ for (var prop in styles) {
+ if (styles.hasOwnProperty(prop)) {
+ div.style[prop] = styles[prop];
+ }
+ }
+ };
+
+ StyleBox.prototype.formatStyle = function (val, unit) {
+ return val === 0 ? 0 : val + unit;
+ };
+
+ // Constructs the computed display state of the cue (a div). Places the div
+ // into the overlay which should be a block level element (usually a div).
+ function CueStyleBox(window, cue, styleOptions) {
+ StyleBox.call(this);
+ this.cue = cue;
+
+ // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will
+ // have inline positioning and will function as the cue background box.
+ this.cueDiv = parseContent(window, cue.text);
+ var styles = {
+ color: "rgba(255, 255, 255, 1)",
+ backgroundColor: "rgba(0, 0, 0, 0.8)",
+ position: "relative",
+ left: 0,
+ right: 0,
+ top: 0,
+ bottom: 0,
+ display: "inline",
+ writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
+ unicodeBidi: "plaintext"
+ };
+
+ this.applyStyles(styles, this.cueDiv);
+
+ // Create an absolutely positioned div that will be used to position the cue
+ // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS
+ // mirrors of them except "middle" which is "center" in CSS.
+ this.div = window.document.createElement("div");
+ styles = {
+ direction: determineBidi(this.cueDiv),
+ writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
+ unicodeBidi: "plaintext",
+ textAlign: cue.align === "middle" ? "center" : cue.align,
+ font: styleOptions.font,
+ whiteSpace: "pre-line",
+ position: "absolute"
+ };
+
+ this.applyStyles(styles);
+ this.div.appendChild(this.cueDiv);
+
+ // Calculate the distance from the reference edge of the viewport to the text
+ // position of the cue box. The reference edge will be resolved later when
+ // the box orientation styles are applied.
+ var textPos = 0;
+ switch (cue.positionAlign) {
+ case "start":
+ textPos = cue.position;
+ break;
+ case "middle":
+ textPos = cue.position - cue.size / 2;
+ break;
+ case "end":
+ textPos = cue.position - cue.size;
+ break;
+ }
+
+ // Horizontal box orientation; textPos is the distance from the left edge of the
+ // area to the left edge of the box and cue.size is the distance extending to
+ // the right from there.
+ if (cue.vertical === "") {
+ this.applyStyles({
+ left: this.formatStyle(textPos, "%"),
+ width: this.formatStyle(cue.size, "%")
+ });
+ // Vertical box orientation; textPos is the distance from the top edge of the
+ // area to the top edge of the box and cue.size is the height extending
+ // downwards from there.
+ } else {
+ this.applyStyles({
+ top: this.formatStyle(textPos, "%"),
+ height: this.formatStyle(cue.size, "%")
+ });
+ }
+
+ this.move = function (box) {
+ this.applyStyles({
+ top: this.formatStyle(box.top, "px"),
+ bottom: this.formatStyle(box.bottom, "px"),
+ left: this.formatStyle(box.left, "px"),
+ right: this.formatStyle(box.right, "px"),
+ height: this.formatStyle(box.height, "px"),
+ width: this.formatStyle(box.width, "px")
+ });
+ };
+ }
+ CueStyleBox.prototype = _objCreate(StyleBox.prototype);
+ CueStyleBox.prototype.constructor = CueStyleBox;
+
+ // Represents the co-ordinates of an Element in a way that we can easily
+ // compute things with such as if it overlaps or intersects with another Element.
+ // Can initialize it with either a StyleBox or another BoxPosition.
+ function BoxPosition(obj) {
+ // Either a BoxPosition was passed in and we need to copy it, or a StyleBox
+ // was passed in and we need to copy the results of 'getBoundingClientRect'
+ // as the object returned is readonly. All co-ordinate values are in reference
+ // to the viewport origin (top left).
+ var lh, height, width, top;
+ if (obj.div) {
+ height = obj.div.offsetHeight;
+ width = obj.div.offsetWidth;
+ top = obj.div.offsetTop;
+
+ var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();
+ obj = obj.div.getBoundingClientRect();
+ // In certain cases the outter div will be slightly larger then the sum of
+ // the inner div's lines. This could be due to bold text, etc, on some platforms.
+ // In this case we should get the average line height and use that. This will
+ // result in the desired behaviour.
+ lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;
+ }
+ this.left = obj.left;
+ this.right = obj.right;
+ this.top = obj.top || top;
+ this.height = obj.height || height;
+ this.bottom = obj.bottom || top + (obj.height || height);
+ this.width = obj.width || width;
+ this.lineHeight = lh !== undefined ? lh : obj.lineHeight;
+ }
+
+ // Move the box along a particular axis. Optionally pass in an amount to move
+ // the box. If no amount is passed then the default is the line height of the
+ // box.
+ BoxPosition.prototype.move = function (axis, toMove) {
+ toMove = toMove !== undefined ? toMove : this.lineHeight;
+ switch (axis) {
+ case "+x":
+ this.left += toMove;
+ this.right += toMove;
+ break;
+ case "-x":
+ this.left -= toMove;
+ this.right -= toMove;
+ break;
+ case "+y":
+ this.top += toMove;
+ this.bottom += toMove;
+ break;
+ case "-y":
+ this.top -= toMove;
+ this.bottom -= toMove;
+ break;
+ }
+ };
+
+ // Check if this box overlaps another box, b2.
+ BoxPosition.prototype.overlaps = function (b2) {
+ return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;
+ };
+
+ // Check if this box overlaps any other boxes in boxes.
+ BoxPosition.prototype.overlapsAny = function (boxes) {
+ for (var i = 0; i < boxes.length; i++) {
+ if (this.overlaps(boxes[i])) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ // Check if this box is within another box.
+ BoxPosition.prototype.within = function (container) {
+ return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;
+ };
+
+ // Check if this box is entirely within the container or it is overlapping
+ // on the edge opposite of the axis direction passed. For example, if "+x" is
+ // passed and the box is overlapping on the left edge of the container, then
+ // return true.
+ BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {
+ switch (axis) {
+ case "+x":
+ return this.left < container.left;
+ case "-x":
+ return this.right > container.right;
+ case "+y":
+ return this.top < container.top;
+ case "-y":
+ return this.bottom > container.bottom;
+ }
+ };
+
+ // Find the percentage of the area that this box is overlapping with another
+ // box.
+ BoxPosition.prototype.intersectPercentage = function (b2) {
+ var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),
+ y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),
+ intersectArea = x * y;
+ return intersectArea / (this.height * this.width);
+ };
+
+ // Convert the positions from this box to CSS compatible positions using
+ // the reference container's positions. This has to be done because this
+ // box's positions are in reference to the viewport origin, whereas, CSS
+ // values are in referecne to their respective edges.
+ BoxPosition.prototype.toCSSCompatValues = function (reference) {
+ return {
+ top: this.top - reference.top,
+ bottom: reference.bottom - this.bottom,
+ left: this.left - reference.left,
+ right: reference.right - this.right,
+ height: this.height,
+ width: this.width
+ };
+ };
+
+ // Get an object that represents the box's position without anything extra.
+ // Can pass a StyleBox, HTMLElement, or another BoxPositon.
+ BoxPosition.getSimpleBoxPosition = function (obj) {
+ var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;
+ var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;
+ var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;
+
+ obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;
+ var ret = {
+ left: obj.left,
+ right: obj.right,
+ top: obj.top || top,
+ height: obj.height || height,
+ bottom: obj.bottom || top + (obj.height || height),
+ width: obj.width || width
+ };
+ return ret;
+ };
+
+ // Move a StyleBox to its specified, or next best, position. The containerBox
+ // is the box that contains the StyleBox, such as a div. boxPositions are
+ // a list of other boxes that the styleBox can't overlap with.
+ function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {
+
+ // Find the best position for a cue box, b, on the video. The axis parameter
+ // is a list of axis, the order of which, it will move the box along. For example:
+ // Passing ["+x", "-x"] will move the box first along the x axis in the positive
+ // direction. If it doesn't find a good position for it there it will then move
+ // it along the x axis in the negative direction.
+ function findBestPosition(b, axis) {
+ var bestPosition,
+ specifiedPosition = new BoxPosition(b),
+ percentage = 1; // Highest possible so the first thing we get is better.
+
+ for (var i = 0; i < axis.length; i++) {
+ while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {
+ b.move(axis[i]);
+ }
+ // We found a spot where we aren't overlapping anything. This is our
+ // best position.
+ if (b.within(containerBox)) {
+ return b;
+ }
+ var p = b.intersectPercentage(containerBox);
+ // If we're outside the container box less then we were on our last try
+ // then remember this position as the best position.
+ if (percentage > p) {
+ bestPosition = new BoxPosition(b);
+ percentage = p;
+ }
+ // Reset the box position to the specified position.
+ b = new BoxPosition(specifiedPosition);
+ }
+ return bestPosition || specifiedPosition;
+ }
+
+ var boxPosition = new BoxPosition(styleBox),
+ cue = styleBox.cue,
+ linePos = computeLinePos(cue),
+ axis = [];
+
+ // If we have a line number to align the cue to.
+ if (cue.snapToLines) {
+ var size;
+ switch (cue.vertical) {
+ case "":
+ axis = ["+y", "-y"];
+ size = "height";
+ break;
+ case "rl":
+ axis = ["+x", "-x"];
+ size = "width";
+ break;
+ case "lr":
+ axis = ["-x", "+x"];
+ size = "width";
+ break;
+ }
+
+ var step = boxPosition.lineHeight,
+ position = step * Math.round(linePos),
+ maxPosition = containerBox[size] + step,
+ initialAxis = axis[0];
+
+ // If the specified intial position is greater then the max position then
+ // clamp the box to the amount of steps it would take for the box to
+ // reach the max position.
+ if (Math.abs(position) > maxPosition) {
+ position = position < 0 ? -1 : 1;
+ position *= Math.ceil(maxPosition / step) * step;
+ }
+
+ // If computed line position returns negative then line numbers are
+ // relative to the bottom of the video instead of the top. Therefore, we
+ // need to increase our initial position by the length or width of the
+ // video, depending on the writing direction, and reverse our axis directions.
+ if (linePos < 0) {
+ position += cue.vertical === "" ? containerBox.height : containerBox.width;
+ axis = axis.reverse();
+ }
+
+ // Move the box to the specified position. This may not be its best
+ // position.
+ boxPosition.move(initialAxis, position);
+ } else {
+ // If we have a percentage line value for the cue.
+ var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;
+
+ switch (cue.lineAlign) {
+ case "middle":
+ linePos -= calculatedPercentage / 2;
+ break;
+ case "end":
+ linePos -= calculatedPercentage;
+ break;
+ }
+
+ // Apply initial line position to the cue box.
+ switch (cue.vertical) {
+ case "":
+ styleBox.applyStyles({
+ top: styleBox.formatStyle(linePos, "%")
+ });
+ break;
+ case "rl":
+ styleBox.applyStyles({
+ left: styleBox.formatStyle(linePos, "%")
+ });
+ break;
+ case "lr":
+ styleBox.applyStyles({
+ right: styleBox.formatStyle(linePos, "%")
+ });
+ break;
+ }
+
+ axis = ["+y", "-x", "+x", "-y"];
+
+ // Get the box position again after we've applied the specified positioning
+ // to it.
+ boxPosition = new BoxPosition(styleBox);
+ }
+
+ var bestPosition = findBestPosition(boxPosition, axis);
+ styleBox.move(bestPosition.toCSSCompatValues(containerBox));
+ }
+
+ function WebVTT$1() {}
+ // Nothing
+
+
+ // Helper to allow strings to be decoded instead of the default binary utf8 data.
+ WebVTT$1.StringDecoder = function () {
+ return {
+ decode: function decode(data) {
+ if (!data) {
+ return "";
+ }
+ if (typeof data !== "string") {
+ throw new Error("Error - expected string data.");
+ }
+ return decodeURIComponent(encodeURIComponent(data));
+ }
+ };
+ };
+
+ WebVTT$1.convertCueToDOMTree = function (window, cuetext) {
+ if (!window || !cuetext) {
+ return null;
+ }
+ return parseContent(window, cuetext);
+ };
+
+ var FONT_SIZE_PERCENT = 0.05;
+ var FONT_STYLE = "sans-serif";
+ var CUE_BACKGROUND_PADDING = "1.5%";
+
+ // Runs the processing model over the cues and regions passed to it.
+ // @param overlay A block level element (usually a div) that the computed cues
+ // and regions will be placed into.
+ WebVTT$1.processCues = function (window, cues, overlay) {
+ if (!window || !cues || !overlay) {
+ return null;
+ }
+
+ // Remove all previous children.
+ while (overlay.firstChild) {
+ overlay.removeChild(overlay.firstChild);
+ }
+
+ var paddedOverlay = window.document.createElement("div");
+ paddedOverlay.style.position = "absolute";
+ paddedOverlay.style.left = "0";
+ paddedOverlay.style.right = "0";
+ paddedOverlay.style.top = "0";
+ paddedOverlay.style.bottom = "0";
+ paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;
+ overlay.appendChild(paddedOverlay);
+
+ // Determine if we need to compute the display states of the cues. This could
+ // be the case if a cue's state has been changed since the last computation or
+ // if it has not been computed yet.
+ function shouldCompute(cues) {
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i].hasBeenReset || !cues[i].displayState) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ // We don't need to recompute the cues' display states. Just reuse them.
+ if (!shouldCompute(cues)) {
+ for (var i = 0; i < cues.length; i++) {
+ paddedOverlay.appendChild(cues[i].displayState);
+ }
+ return;
+ }
+
+ var boxPositions = [],
+ containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),
+ fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;
+ var styleOptions = {
+ font: fontSize + "px " + FONT_STYLE
+ };
+
+ (function () {
+ var styleBox, cue;
+
+ for (var i = 0; i < cues.length; i++) {
+ cue = cues[i];
+
+ // Compute the intial position and styles of the cue div.
+ styleBox = new CueStyleBox(window, cue, styleOptions);
+ paddedOverlay.appendChild(styleBox.div);
+
+ // Move the cue div to it's correct line position.
+ moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);
+
+ // Remember the computed div so that we don't have to recompute it later
+ // if we don't have too.
+ cue.displayState = styleBox.div;
+
+ boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));
+ }
+ })();
+ };
+
+ WebVTT$1.Parser = function (window, vttjs, decoder) {
+ if (!decoder) {
+ decoder = vttjs;
+ vttjs = {};
+ }
+ if (!vttjs) {
+ vttjs = {};
+ }
+
+ this.window = window;
+ this.vttjs = vttjs;
+ this.state = "INITIAL";
+ this.buffer = "";
+ this.decoder = decoder || new TextDecoder("utf8");
+ this.regionList = [];
+ };
+
+ WebVTT$1.Parser.prototype = {
+ // If the error is a ParsingError then report it to the consumer if
+ // possible. If it's not a ParsingError then throw it like normal.
+ reportOrThrowError: function reportOrThrowError(e) {
+ if (e instanceof ParsingError) {
+ this.onparsingerror && this.onparsingerror(e);
+ } else {
+ throw e;
+ }
+ },
+ parse: function parse(data) {
+ var self = this;
+
+ // If there is no data then we won't decode it, but will just try to parse
+ // whatever is in buffer already. This may occur in circumstances, for
+ // example when flush() is called.
+ if (data) {
+ // Try to decode the data that we received.
+ self.buffer += self.decoder.decode(data, { stream: true });
+ }
+
+ function collectNextLine() {
+ var buffer = self.buffer;
+ var pos = 0;
+ while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
+ ++pos;
+ }
+ var line = buffer.substr(0, pos);
+ // Advance the buffer early in case we fail below.
+ if (buffer[pos] === '\r') {
+ ++pos;
+ }
+ if (buffer[pos] === '\n') {
+ ++pos;
+ }
+ self.buffer = buffer.substr(pos);
+ return line;
+ }
+
+ // 3.4 WebVTT region and WebVTT region settings syntax
+ function parseRegion(input) {
+ var settings = new Settings();
+
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "id":
+ settings.set(k, v);
+ break;
+ case "width":
+ settings.percent(k, v);
+ break;
+ case "lines":
+ settings.integer(k, v);
+ break;
+ case "regionanchor":
+ case "viewportanchor":
+ var xy = v.split(',');
+ if (xy.length !== 2) {
+ break;
+ }
+ // We have to make sure both x and y parse, so use a temporary
+ // settings object here.
+ var anchor = new Settings();
+ anchor.percent("x", xy[0]);
+ anchor.percent("y", xy[1]);
+ if (!anchor.has("x") || !anchor.has("y")) {
+ break;
+ }
+ settings.set(k + "X", anchor.get("x"));
+ settings.set(k + "Y", anchor.get("y"));
+ break;
+ case "scroll":
+ settings.alt(k, v, ["up"]);
+ break;
+ }
+ }, /=/, /\s/);
+
+ // Create the region, using default values for any values that were not
+ // specified.
+ if (settings.has("id")) {
+ var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();
+ region.width = settings.get("width", 100);
+ region.lines = settings.get("lines", 3);
+ region.regionAnchorX = settings.get("regionanchorX", 0);
+ region.regionAnchorY = settings.get("regionanchorY", 100);
+ region.viewportAnchorX = settings.get("viewportanchorX", 0);
+ region.viewportAnchorY = settings.get("viewportanchorY", 100);
+ region.scroll = settings.get("scroll", "");
+ // Register the region.
+ self.onregion && self.onregion(region);
+ // Remember the VTTRegion for later in case we parse any VTTCues that
+ // reference it.
+ self.regionList.push({
+ id: settings.get("id"),
+ region: region
+ });
+ }
+ }
+
+ // draft-pantos-http-live-streaming-20
+ // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5
+ // 3.5 WebVTT
+ function parseTimestampMap(input) {
+ var settings = new Settings();
+
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "MPEGT":
+ settings.integer(k + 'S', v);
+ break;
+ case "LOCA":
+ settings.set(k + 'L', parseTimeStamp(v));
+ break;
+ }
+ }, /[^\d]:/, /,/);
+
+ self.ontimestampmap && self.ontimestampmap({
+ "MPEGTS": settings.get("MPEGTS"),
+ "LOCAL": settings.get("LOCAL")
+ });
+ }
+
+ // 3.2 WebVTT metadata header syntax
+ function parseHeader(input) {
+ if (input.match(/X-TIMESTAMP-MAP/)) {
+ // This line contains HLS X-TIMESTAMP-MAP metadata
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "X-TIMESTAMP-MAP":
+ parseTimestampMap(v);
+ break;
+ }
+ }, /=/);
+ } else {
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "Region":
+ // 3.3 WebVTT region metadata header syntax
+ parseRegion(v);
+ break;
+ }
+ }, /:/);
+ }
+ }
+
+ // 5.1 WebVTT file parsing.
+ try {
+ var line;
+ if (self.state === "INITIAL") {
+ // We can't start parsing until we have the first line.
+ if (!/\r\n|\n/.test(self.buffer)) {
+ return this;
+ }
+
+ line = collectNextLine();
+
+ var m = line.match(/^WEBVTT([ \t].*)?$/);
+ if (!m || !m[0]) {
+ throw new ParsingError(ParsingError.Errors.BadSignature);
+ }
+
+ self.state = "HEADER";
+ }
+
+ var alreadyCollectedLine = false;
+ while (self.buffer) {
+ // We can't parse a line until we have the full line.
+ if (!/\r\n|\n/.test(self.buffer)) {
+ return this;
+ }
+
+ if (!alreadyCollectedLine) {
+ line = collectNextLine();
+ } else {
+ alreadyCollectedLine = false;
+ }
+
+ switch (self.state) {
+ case "HEADER":
+ // 13-18 - Allow a header (metadata) under the WEBVTT line.
+ if (/:/.test(line)) {
+ parseHeader(line);
+ } else if (!line) {
+ // An empty line terminates the header and starts the body (cues).
+ self.state = "ID";
+ }
+ continue;
+ case "NOTE":
+ // Ignore NOTE blocks.
+ if (!line) {
+ self.state = "ID";
+ }
+ continue;
+ case "ID":
+ // Check for the start of NOTE blocks.
+ if (/^NOTE($|[ \t])/.test(line)) {
+ self.state = "NOTE";
+ break;
+ }
+ // 19-29 - Allow any number of line terminators, then initialize new cue values.
+ if (!line) {
+ continue;
+ }
+ self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, "");
+ self.state = "CUE";
+ // 30-39 - Check if self line contains an optional identifier or timing data.
+ if (line.indexOf("-->") === -1) {
+ self.cue.id = line;
+ continue;
+ }
+ // Process line as start of a cue.
+ /*falls through*/
+ case "CUE":
+ // 40 - Collect cue timings and settings.
+ try {
+ parseCue(line, self.cue, self.regionList);
+ } catch (e) {
+ self.reportOrThrowError(e);
+ // In case of an error ignore rest of the cue.
+ self.cue = null;
+ self.state = "BADCUE";
+ continue;
+ }
+ self.state = "CUETEXT";
+ continue;
+ case "CUETEXT":
+ var hasSubstring = line.indexOf("-->") !== -1;
+ // 34 - If we have an empty line then report the cue.
+ // 35 - If we have the special substring '-->' then report the cue,
+ // but do not collect the line as we need to process the current
+ // one as a new cue.
+ if (!line || hasSubstring && (alreadyCollectedLine = true)) {
+ // We are done parsing self cue.
+ self.oncue && self.oncue(self.cue);
+ self.cue = null;
+ self.state = "ID";
+ continue;
+ }
+ if (self.cue.text) {
+ self.cue.text += "\n";
+ }
+ self.cue.text += line;
+ continue;
+ case "BADCUE":
+ // BADCUE
+ // 54-62 - Collect and discard the remaining cue.
+ if (!line) {
+ self.state = "ID";
+ }
+ continue;
+ }
+ }
+ } catch (e) {
+ self.reportOrThrowError(e);
+
+ // If we are currently parsing a cue, report what we have.
+ if (self.state === "CUETEXT" && self.cue && self.oncue) {
+ self.oncue(self.cue);
+ }
+ self.cue = null;
+ // Enter BADWEBVTT state if header was not parsed correctly otherwise
+ // another exception occurred so enter BADCUE state.
+ self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE";
+ }
+ return this;
+ },
+ flush: function flush() {
+ var self = this;
+ try {
+ // Finish decoding the stream.
+ self.buffer += self.decoder.decode();
+ // Synthesize the end of the current cue or region.
+ if (self.cue || self.state === "HEADER") {
+ self.buffer += "\n\n";
+ self.parse();
+ }
+ // If we've flushed, parsed, and we're still on the INITIAL state then
+ // that means we don't have enough of the stream to parse the first
+ // line.
+ if (self.state === "INITIAL") {
+ throw new ParsingError(ParsingError.Errors.BadSignature);
+ }
+ } catch (e) {
+ self.reportOrThrowError(e);
+ }
+ self.onflush && self.onflush();
+ return this;
+ }
+ };
+
+ var vtt = WebVTT$1;
+
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ var autoKeyword = "auto";
+ var directionSetting = {
+ "": 1,
+ "lr": 1,
+ "rl": 1
+ };
+ var alignSetting = {
+ "start": 1,
+ "middle": 1,
+ "end": 1,
+ "left": 1,
+ "right": 1
+ };
+
+ function findDirectionSetting(value) {
+ if (typeof value !== "string") {
+ return false;
+ }
+ var dir = directionSetting[value.toLowerCase()];
+ return dir ? value.toLowerCase() : false;
+ }
+
+ function findAlignSetting(value) {
+ if (typeof value !== "string") {
+ return false;
+ }
+ var align = alignSetting[value.toLowerCase()];
+ return align ? value.toLowerCase() : false;
+ }
+
+ function VTTCue(startTime, endTime, text) {
+ /**
+ * Shim implementation specific properties. These properties are not in
+ * the spec.
+ */
+
+ // Lets us know when the VTTCue's data has changed in such a way that we need
+ // to recompute its display state. This lets us compute its display state
+ // lazily.
+ this.hasBeenReset = false;
+
+ /**
+ * VTTCue and TextTrackCue properties
+ * http://dev.w3.org/html5/webvtt/#vttcue-interface
+ */
+
+ var _id = "";
+ var _pauseOnExit = false;
+ var _startTime = startTime;
+ var _endTime = endTime;
+ var _text = text;
+ var _region = null;
+ var _vertical = "";
+ var _snapToLines = true;
+ var _line = "auto";
+ var _lineAlign = "start";
+ var _position = 50;
+ var _positionAlign = "middle";
+ var _size = 50;
+ var _align = "middle";
+
+ Object.defineProperties(this, {
+ "id": {
+ enumerable: true,
+ get: function get() {
+ return _id;
+ },
+ set: function set(value) {
+ _id = "" + value;
+ }
+ },
+
+ "pauseOnExit": {
+ enumerable: true,
+ get: function get() {
+ return _pauseOnExit;
+ },
+ set: function set(value) {
+ _pauseOnExit = !!value;
+ }
+ },
+
+ "startTime": {
+ enumerable: true,
+ get: function get() {
+ return _startTime;
+ },
+ set: function set(value) {
+ if (typeof value !== "number") {
+ throw new TypeError("Start time must be set to a number.");
+ }
+ _startTime = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "endTime": {
+ enumerable: true,
+ get: function get() {
+ return _endTime;
+ },
+ set: function set(value) {
+ if (typeof value !== "number") {
+ throw new TypeError("End time must be set to a number.");
+ }
+ _endTime = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "text": {
+ enumerable: true,
+ get: function get() {
+ return _text;
+ },
+ set: function set(value) {
+ _text = "" + value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "region": {
+ enumerable: true,
+ get: function get() {
+ return _region;
+ },
+ set: function set(value) {
+ _region = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "vertical": {
+ enumerable: true,
+ get: function get() {
+ return _vertical;
+ },
+ set: function set(value) {
+ var setting = findDirectionSetting(value);
+ // Have to check for false because the setting an be an empty string.
+ if (setting === false) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _vertical = setting;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "snapToLines": {
+ enumerable: true,
+ get: function get() {
+ return _snapToLines;
+ },
+ set: function set(value) {
+ _snapToLines = !!value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "line": {
+ enumerable: true,
+ get: function get() {
+ return _line;
+ },
+ set: function set(value) {
+ if (typeof value !== "number" && value !== autoKeyword) {
+ throw new SyntaxError("An invalid number or illegal string was specified.");
+ }
+ _line = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "lineAlign": {
+ enumerable: true,
+ get: function get() {
+ return _lineAlign;
+ },
+ set: function set(value) {
+ var setting = findAlignSetting(value);
+ if (!setting) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _lineAlign = setting;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "position": {
+ enumerable: true,
+ get: function get() {
+ return _position;
+ },
+ set: function set(value) {
+ if (value < 0 || value > 100) {
+ throw new Error("Position must be between 0 and 100.");
+ }
+ _position = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "positionAlign": {
+ enumerable: true,
+ get: function get() {
+ return _positionAlign;
+ },
+ set: function set(value) {
+ var setting = findAlignSetting(value);
+ if (!setting) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _positionAlign = setting;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "size": {
+ enumerable: true,
+ get: function get() {
+ return _size;
+ },
+ set: function set(value) {
+ if (value < 0 || value > 100) {
+ throw new Error("Size must be between 0 and 100.");
+ }
+ _size = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "align": {
+ enumerable: true,
+ get: function get() {
+ return _align;
+ },
+ set: function set(value) {
+ var setting = findAlignSetting(value);
+ if (!setting) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _align = setting;
+ this.hasBeenReset = true;
+ }
+ }
+ });
+
+ /**
+ * Other <track> spec defined properties
+ */
+
+ // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state
+ this.displayState = undefined;
+ }
+
+ /**
+ * VTTCue methods
+ */
+
+ VTTCue.prototype.getCueAsHTML = function () {
+ // Assume WebVTT.convertCueToDOMTree is on the global.
+ return WebVTT.convertCueToDOMTree(window, this.text);
+ };
+
+ var vttcue = VTTCue;
+
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ var scrollSetting = {
+ "": true,
+ "up": true
+ };
+
+ function findScrollSetting(value) {
+ if (typeof value !== "string") {
+ return false;
+ }
+ var scroll = scrollSetting[value.toLowerCase()];
+ return scroll ? value.toLowerCase() : false;
+ }
+
+ function isValidPercentValue(value) {
+ return typeof value === "number" && value >= 0 && value <= 100;
+ }
+
+ // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface
+ function VTTRegion() {
+ var _width = 100;
+ var _lines = 3;
+ var _regionAnchorX = 0;
+ var _regionAnchorY = 100;
+ var _viewportAnchorX = 0;
+ var _viewportAnchorY = 100;
+ var _scroll = "";
+
+ Object.defineProperties(this, {
+ "width": {
+ enumerable: true,
+ get: function get() {
+ return _width;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("Width must be between 0 and 100.");
+ }
+ _width = value;
+ }
+ },
+ "lines": {
+ enumerable: true,
+ get: function get() {
+ return _lines;
+ },
+ set: function set(value) {
+ if (typeof value !== "number") {
+ throw new TypeError("Lines must be set to a number.");
+ }
+ _lines = value;
+ }
+ },
+ "regionAnchorY": {
+ enumerable: true,
+ get: function get() {
+ return _regionAnchorY;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("RegionAnchorX must be between 0 and 100.");
+ }
+ _regionAnchorY = value;
+ }
+ },
+ "regionAnchorX": {
+ enumerable: true,
+ get: function get() {
+ return _regionAnchorX;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("RegionAnchorY must be between 0 and 100.");
+ }
+ _regionAnchorX = value;
+ }
+ },
+ "viewportAnchorY": {
+ enumerable: true,
+ get: function get() {
+ return _viewportAnchorY;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("ViewportAnchorY must be between 0 and 100.");
+ }
+ _viewportAnchorY = value;
+ }
+ },
+ "viewportAnchorX": {
+ enumerable: true,
+ get: function get() {
+ return _viewportAnchorX;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("ViewportAnchorX must be between 0 and 100.");
+ }
+ _viewportAnchorX = value;
+ }
+ },
+ "scroll": {
+ enumerable: true,
+ get: function get() {
+ return _scroll;
+ },
+ set: function set(value) {
+ var setting = findScrollSetting(value);
+ // Have to check for false as an empty string is a legal value.
+ if (setting === false) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _scroll = setting;
+ }
+ }
+ });
+ }
+
+ var vttregion = VTTRegion;
+
+ var browserIndex = createCommonjsModule(function (module) {
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ // Default exports for Node. Export the extended versions of VTTCue and
+ // VTTRegion in Node since we likely want the capability to convert back and
+ // forth between JSON. If we don't then it's not that big of a deal since we're
+ // off browser.
+
+
+ var vttjs = module.exports = {
+ WebVTT: vtt,
+ VTTCue: vttcue,
+ VTTRegion: vttregion
+ };
+
+ window_1.vttjs = vttjs;
+ window_1.WebVTT = vttjs.WebVTT;
+
+ var cueShim = vttjs.VTTCue;
+ var regionShim = vttjs.VTTRegion;
+ var nativeVTTCue = window_1.VTTCue;
+ var nativeVTTRegion = window_1.VTTRegion;
+
+ vttjs.shim = function () {
+ window_1.VTTCue = cueShim;
+ window_1.VTTRegion = regionShim;
+ };
+
+ vttjs.restore = function () {
+ window_1.VTTCue = nativeVTTCue;
+ window_1.VTTRegion = nativeVTTRegion;
+ };
+
+ if (!window_1.VTTCue) {
+ vttjs.shim();
+ }
+ });
+ var browserIndex_1 = browserIndex.WebVTT;
+ var browserIndex_2 = browserIndex.VTTCue;
+ var browserIndex_3 = browserIndex.VTTRegion;
+
+ /**
+ * @file tech.js
+ */
+
+ /**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+ /**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+ function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new ALL.text.TrackClass(options);
+
+ tracks.addTrack(track);
+
+ return track;
+ }
+
+ /**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+ var Tech = function (_Component) {
+ inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+ classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ });
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ Tech.prototype.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ };
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this3[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+ list.removeTrack(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+ return createTimeRanges();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + 'trackchange');
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window_1.WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (document_1.body.contains(this.el())) {
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = document_1.createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ window_1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var _this7 = this;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.playsinline = function playsinline() {};
+
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPlaysinline = function setPlaysinline() {};
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks() {};
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+
+ Tech.techs_[name] = tech;
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (window_1 && window_1.videojs && window_1.videojs[name]) {
+ log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return window_1.videojs[name];
+ }
+ };
+
+ return Tech;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+ /**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+ /**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+ /**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresVolumeControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+ Tech.prototype.featuresMuteControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresFullscreenResize = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresPlaybackRate = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresProgressEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresSourceset = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresTimeupdateEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresNativeTextTracks = false;
+
+ /**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+ Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'seeking', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log$1.error('No source handler found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+ };
+
+ // The base Tech class needs to be registered as a Component. It is the only
+ // Tech that can be registered as a Component.
+ Component.registerComponent('Tech', Tech);
+ Tech.registerTech('Tech', Tech);
+
+ /**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+ Tech.defaultTechOrder_ = [];
+
+ var middlewares = {};
+ var middlewareInstances = {};
+
+ var TERMINATOR = {};
+
+ function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+ }
+
+ function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+ }
+
+ function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+ }
+
+ /**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ */
+ function get$1(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+ }
+
+ /**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ */
+ function set$1(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+ }
+
+ /**
+ * Takes the argument given to the player and calls the `call` version of the method
+ * on each middleware from left to right.
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ */
+ function mediate(middleware, tech, method) {
+ var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR;
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+
+ executeRight(middleware, method, returnValue, terminated);
+
+ return returnValue;
+ }
+
+ var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1
+ };
+
+ var allowedSetters = {
+ setCurrentTime: 1
+ };
+
+ var allowedMediators = {
+ play: 1,
+ pause: 1
+ };
+
+ function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+ }
+
+ function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+ }
+
+ function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+ }
+
+ /**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ */
+ function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+ }
+
+ function setSourceHelper() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
+ var next = arguments[2];
+ var player = arguments[3];
+ var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
+ var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+ var mwFactory = middleware[0],
+ mwrest = middleware.slice(1);
+
+ // if mwFactory is a string, then we're at a fork in the road
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+ // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory);
+
+ // if setSource isn't present, implicitly select this middleware
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ // we've succeeded, now we need to go deeper
+ acc.push(mw);
+
+ // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+ }
+
+ /**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+ var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL'
+ };
+
+ /**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+ var getMimetype = function getMimetype() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+
+ return mimetype || '';
+ };
+
+ /**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+ var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ }
+
+ // 1. check for the type in the `source` cache
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ }
+
+ // 2. see if we have this source in our `currentSources` cache
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ }
+
+ // 3. look for the src url in source elements and use the type there
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ }
+
+ // 4. finally fallback to our list of mime types based on src url extension
+ return getMimetype(src);
+ };
+
+ /**
+ * @module filter-source
+ */
+
+ /**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+ var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({ src: src })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+ };
+
+ /**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+ function fixSource(src) {
+ var mimetype = getMimetype(src.src);
+
+ if (!src.type && mimetype) {
+ src.type = mimetype;
+ }
+
+ return src;
+ }
+
+ /**
+ * @file loader.js
+ */
+
+ /**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+ var MediaLoader = function (_Component) {
+ inherits(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ classCallCheck(this, MediaLoader);
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({ createEl: false }, options);
+
+ // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the browser supports this technology
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+ return _this;
+ }
+
+ return MediaLoader;
+ }(Component);
+
+ Component.registerComponent('MediaLoader', MediaLoader);
+
+ /**
+ * @file clickable-component.js
+ */
+
+ /**
+ * Clickable Component which is clickable or keyboard actionable,
+ * but is not a native HTML button.
+ *
+ * @extends Component
+ */
+
+ var ClickableComponent = function (_Component) {
+ inherits(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ classCallCheck(this, ClickableComponent);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.emitTapEvents();
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createEl = function createEl$$1() {
+ var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');
+ }
+
+ // Add ARIA attributes for clickable element which is not a native HTML button
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ ClickableComponent.prototype.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a control text element on this `Component`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+
+ return this.controlTextEl_;
+ };
+
+ /**
+ * Get or set the localize text to use for the controls on the `Component`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ ClickableComponent.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Enable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ }
+ };
+
+ /**
+ * Disable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ };
+
+ /**
+ * This gets called when a `ClickableComponent` gets:
+ * - Clicked (via the `click` event, listening starts in the constructor)
+ * - Tapped (via the `tap` event, listening starts in the constructor)
+ * - The following things happen in order:
+ * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the
+ * `ClickableComponent`.
+ * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using
+ * {@link ClickableComponent#handleKeyPress}.
+ * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses
+ * the space or enter key.
+ * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`
+ * event as a parameter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+
+
+ ClickableComponent.prototype.handleClick = function handleClick(event) {};
+
+ /**
+ * This gets called when a `ClickableComponent` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ ClickableComponent.prototype.handleFocus = function handleFocus(event) {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when this ClickableComponent has focus and a key gets pressed down. By
+ * default it will call `this.handleClick` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.trigger('click');
+ } else if (_Component.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ /**
+ * Called when a `ClickableComponent` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ ClickableComponent.prototype.handleBlur = function handleBlur(event) {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ return ClickableComponent;
+ }(Component);
+
+ Component.registerComponent('ClickableComponent', ClickableComponent);
+
+ /**
+ * @file poster-image.js
+ */
+
+ /**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+ var PosterImage = function (_ClickableComponent) {
+ inherits(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ classCallCheck(this, PosterImage);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.update();
+ player.on('posterchange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+ _ClickableComponent.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ PosterImage.prototype.createEl = function createEl$$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+
+ return el;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+
+
+ PosterImage.prototype.update = function update(event) {
+ var url = this.player().poster();
+
+ this.setSrc(url);
+
+ // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.setSrc = function setSrc(url) {
+ var backgroundImage = '';
+
+ // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+ if (url) {
+ backgroundImage = 'url("' + url + '")';
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+
+
+ PosterImage.prototype.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+ }(ClickableComponent);
+
+ Component.registerComponent('PosterImage', PosterImage);
+
+ /**
+ * @file text-track-display.js
+ */
+
+ var darkGray = '#222';
+ var lightGray = '#ccc';
+ var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+ };
+
+ /**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+ function constructColor(color, opacity) {
+ var hex = void 0;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+ }
+
+ /**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+ function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+ }
+
+ /**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+ var TextTrackDisplay = function (_Component) {
+ inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ classCallCheck(this, TextTrackDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ var updateDisplayHandler = bind(_this, _this.updateDisplay);
+
+ player.on('loadstart', bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadstart', bind(_this, _this.preselectTrack));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+
+ window_1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window_1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+ var preferredTrack = void 0;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language === track.language) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track;
+ // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ }
+
+ // clear everything if offTextTrackMenuItem was clicked
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track.default) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ };
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof window_1.WebVTT === 'function') {
+ window_1.WebVTT.processCues(window_1, [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof window_1.WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var cues = [];
+
+ for (var _i = 0; _i < track.activeCues.length; _i++) {
+ cues.push(track.activeCues[_i]);
+ }
+
+ window_1.WebVTT.processCues(window_1, cues, this.el_);
+
+ if (!this.player_.textTrackSettings) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window_1.parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+ }(Component);
+
+ Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+ /**
+ * @file loading-spinner.js
+ */
+
+ /**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+ var LoadingSpinner = function (_Component) {
+ inherits(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ classCallCheck(this, LoadingSpinner);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ LoadingSpinner.prototype.createEl = function createEl$$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+
+ return el;
+ };
+
+ return LoadingSpinner;
+ }(Component);
+
+ Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+ /**
+ * @file button.js
+ */
+
+ /**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+ var Button = function (_ClickableComponent) {
+ inherits(Button, _ClickableComponent);
+
+ function Button() {
+ classCallCheck(this, Button);
+ return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ Button.prototype.createEl = function createEl(tag) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ tag = 'button';
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props);
+
+ // Add attributes for button element
+ attributes = assign({
+
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Button.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var className = this.constructor.name;
+
+ log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');
+
+ // Avoid the error message generated by ClickableComponent's addChild method
+ return Component.prototype.addChild.call(this, child, options);
+ };
+
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+
+
+ Button.prototype.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+ this.el_.removeAttribute('disabled');
+ };
+
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+
+
+ Button.prototype.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+ this.el_.setAttribute('disabled', 'disabled');
+ };
+
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+
+
+ Button.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.
+ if (event.which === 32 || event.which === 13) {
+ return;
+ }
+
+ // Pass keypress handling up for unsupported keys
+ _ClickableComponent.prototype.handleKeyPress.call(this, event);
+ };
+
+ return Button;
+ }(ClickableComponent);
+
+ Component.registerComponent('Button', Button);
+
+ /**
+ * @file big-play-button.js
+ */
+
+ /**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+ var BigPlayButton = function (_Button) {
+ inherits(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ classCallCheck(this, BigPlayButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ };
+
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ BigPlayButton.prototype.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play();
+
+ // exit early if clicked via the mouse
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyPress.call(this, event);
+ };
+
+ BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+ }(Button);
+
+ /**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ BigPlayButton.prototype.controlText_ = 'Play Video';
+
+ Component.registerComponent('BigPlayButton', BigPlayButton);
+
+ /**
+ * @file close-button.js
+ */
+
+ /**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+ var CloseButton = function (_Button) {
+ inherits(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ classCallCheck(this, CloseButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CloseButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when this will be
+ * triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+
+
+ CloseButton.prototype.handleClick = function handleClick(event) {
+
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({ type: 'close', bubbles: false });
+ };
+
+ return CloseButton;
+ }(Button);
+
+ Component.registerComponent('CloseButton', CloseButton);
+
+ /**
+ * @file play-toggle.js
+ */
+
+ /**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+ var PlayToggle = function (_Button) {
+ inherits(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ classCallCheck(this, PlayToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'play', _this.handlePlay);
+ _this.on(player, 'pause', _this.handlePause);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlayToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlayToggle.prototype.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+
+
+ PlayToggle.prototype.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ };
+
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+
+
+ PlayToggle.prototype.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+ // change the button text to "Pause"
+ this.controlText('Pause');
+ };
+
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+
+
+ PlayToggle.prototype.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ // change the button text to "Play"
+ this.controlText('Play');
+ };
+
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ PlayToggle.prototype.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended');
+ // change the button text to "Replay"
+ this.controlText('Replay');
+
+ // on the next seek remove the replay button
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlayToggle.prototype.controlText_ = 'Play';
+
+ Component.registerComponent('PlayToggle', PlayToggle);
+
+ /**
+ * @file format-time.js
+ * @module format-time
+ */
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)
+ * will force a number of leading zeros to cover the length of the guide.
+ *
+ * @param {number} seconds
+ * Number of seconds to be turned into a string
+ *
+ * @param {number} guide
+ * Number (in seconds) to model the string after
+ *
+ * @return {string}
+ * Time formatted as H:MM:SS or M:SS
+ */
+ var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s;
+ };
+
+ var implementation = defaultImplementation;
+
+ /**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime implementation.
+ * Will receive the current time in seconds and the guide (in seconds) as arguments.
+ */
+ function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+ }
+
+ /**
+ * Resets formatTime to the default implementation.
+ */
+ function resetFormatTime() {
+ implementation = defaultImplementation;
+ }
+
+ function formatTime (seconds) {
+ var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;
+
+ return implementation(seconds, guide);
+ }
+
+ /**
+ * @file time-display.js
+ */
+
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var TimeDisplay = function (_Component) {
+ inherits(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ classCallCheck(this, TimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TimeDisplay.prototype.createEl = function createEl$$1(plainName) {
+ var className = this.buildCSSClass();
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + ' vjs-time-control vjs-control',
+ innerHTML: '<span class="vjs-control-text">' + this.localize(this.labelText_) + '\xA0</span>'
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + '-display'
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off'
+ });
+
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ TimeDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document_1.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ };
+
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ };
+
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ };
+
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ TimeDisplay.prototype.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+ }(Component);
+
+ /**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ TimeDisplay.prototype.labelText_ = 'Time';
+
+ /**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ TimeDisplay.prototype.controlText_ = 'Time';
+
+ Component.registerComponent('TimeDisplay', TimeDisplay);
+
+ /**
+ * @file current-time-display.js
+ */
+
+ /**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+ var CurrentTimeDisplay = function (_TimeDisplay) {
+ inherits(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ classCallCheck(this, CurrentTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ };
+
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+
+ this.updateFormattedTime_(time);
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+ /**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+
+ Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+ /**
+ * @file duration-display.js
+ */
+
+ /**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+ var DurationDisplay = function (_TimeDisplay) {
+ inherits(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ classCallCheck(this, DurationDisplay);
+
+ // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.updateContent);
+
+ // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ };
+
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+
+
+ DurationDisplay.prototype.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (duration && this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DurationDisplay.prototype.labelText_ = 'Duration';
+
+ /**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ DurationDisplay.prototype.controlText_ = 'Duration';
+
+ Component.registerComponent('DurationDisplay', DurationDisplay);
+
+ /**
+ * @file time-divider.js
+ */
+
+ /**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+ var TimeDivider = function (_Component) {
+ inherits(TimeDivider, _Component);
+
+ function TimeDivider() {
+ classCallCheck(this, TimeDivider);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeDivider.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ });
+ };
+
+ return TimeDivider;
+ }(Component);
+
+ Component.registerComponent('TimeDivider', TimeDivider);
+
+ /**
+ * @file remaining-time-display.js
+ */
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var RemainingTimeDisplay = function (_TimeDisplay) {
+ inherits(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ classCallCheck(this, RemainingTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ };
+
+ /**
+ * The remaining time display prefixes numbers with a "minus" character.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ // TODO: The "-" should be decorative, and not announced by a screen reader
+ return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);
+ };
+
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+
+
+ RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+ /**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+
+ Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+ /**
+ * @file live-display.js
+ */
+
+ // TODO - Future make it click to snap to live
+
+ /**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+ var LiveDisplay = function (_Component) {
+ inherits(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ classCallCheck(this, LiveDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.updateShowing();
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LiveDisplay.prototype.createEl = function createEl$$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: '<span class="vjs-control-text">' + this.localize('Stream Type') + '\xA0</span>' + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ LiveDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+
+
+ LiveDisplay.prototype.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+ }(Component);
+
+ Component.registerComponent('LiveDisplay', LiveDisplay);
+
+ /**
+ * @file slider.js
+ */
+
+ /**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+ var Slider = function (_Component) {
+ inherits(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ classCallCheck(this, Slider);
+
+ // Set property names to bar to match with the child Slider class is looking for
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.bar = _this.getChild(_this.options_.barName);
+
+ // Set a horizontal or vertical class on the slider depending on the slider type
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ Slider.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+
+
+ Slider.prototype.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ this.on('click', this.handleClick);
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+
+
+ Slider.prototype.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+ var doc = this.bar.el_.ownerDocument;
+
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+ this.enabled_ = false;
+ };
+
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Slider.prototype.createEl = function createEl$$1(type) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+
+
+ Slider.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ }
+ // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+ blockTextSelection();
+
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('slideractive');
+
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+
+ this.handleMouseMove(event);
+ };
+
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ Slider.prototype.handleMouseMove = function handleMouseMove(event) {};
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+
+
+ Slider.prototype.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+
+ unblockTextSelection();
+
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('sliderinactive');
+
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+
+ this.update();
+ };
+
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @returns {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+
+
+ Slider.prototype.update = function update() {
+
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ }
+
+ // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+ var progress = this.getPercent();
+ var bar = this.bar;
+
+ // If there's no bar...
+ if (!bar) {
+ return;
+ }
+
+ // Protect against no duration and other division issues
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ }
+
+ // Convert to a percentage for setting
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style;
+
+ // Set the new bar width or height
+ if (this.vertical()) {
+ style.height = percentage;
+ } else {
+ style.width = percentage;
+ }
+
+ return progress;
+ };
+
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+
+
+ Slider.prototype.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+ return position.x;
+ };
+
+ /**
+ * Handle a `focus` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to run.
+ *
+ * @listens focus
+ */
+
+
+ Slider.prototype.handleFocus = function handleFocus() {
+ this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+
+
+ Slider.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepBack();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepForward();
+ }
+ };
+
+ /**
+ * Handle a `blur` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to run.
+ *
+ * @listens blur
+ */
+
+ Slider.prototype.handleBlur = function handleBlur() {
+ this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+
+
+ Slider.prototype.handleClick = function handleClick(event) {
+ event.stopImmediatePropagation();
+ event.preventDefault();
+ };
+
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+
+
+ Slider.prototype.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+ }(Component);
+
+ Component.registerComponent('Slider', Slider);
+
+ /**
+ * @file load-progress-bar.js
+ */
+
+ /**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+ var LoadProgressBar = function (_Component) {
+ inherits(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ classCallCheck(this, LoadProgressBar);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.partEls_ = [];
+ _this.on(player, 'progress', _this.update);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LoadProgressBar.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Loaded') + '</span>: 0%</span>'
+ });
+ };
+
+ LoadProgressBar.prototype.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+
+
+ LoadProgressBar.prototype.update = function update(event) {
+ var buffered = this.player_.buffered();
+ var duration = this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+
+ // get the percent width of a time compared to the total end
+ var percentify = function percentify(time, end) {
+ // no NaN
+ var percent = time / end || 0;
+
+ return (percent >= 1 ? 1 : percent) * 100 + '%';
+ };
+
+ // update the width of the progress bar
+ this.el_.style.width = percentify(bufferedEnd, duration);
+
+ // add child elements to represent the individual buffered time ranges
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ }
+
+ // set the percent based on the width of the progress bar (bufferedEnd)
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ }
+
+ // remove unused buffered range elements
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+ }(Component);
+
+ Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+ /**
+ * @file time-tooltip.js
+ */
+
+ /**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+ var TimeTooltip = function (_Component) {
+ inherits(TimeTooltip, _Component);
+
+ function TimeTooltip() {
+ classCallCheck(this, TimeTooltip);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeTooltip.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ });
+ };
+
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+ // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+ if (!playerRect || !tooltipRect) {
+ return;
+ }
+
+ // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+ // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+ // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+ var pullTooltipBy = tooltipRect.width / 2;
+
+ // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ }
+
+ // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = '-' + pullTooltipBy + 'px';
+ textContent(this.el_, content);
+ };
+
+ return TimeTooltip;
+ }(Component);
+
+ Component.registerComponent('TimeTooltip', TimeTooltip);
+
+ /**
+ * @file play-progress-bar.js
+ */
+
+ /**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var PlayProgressBar = function (_Component) {
+ inherits(PlayProgressBar, _Component);
+
+ function PlayProgressBar() {
+ classCallCheck(this, PlayProgressBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ PlayProgressBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Progress') + '</span>: 0%</span>'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();
+
+ var content = formatTime(time, _this2.player_.duration());
+ var timeTooltip = _this2.getChild('timeTooltip');
+
+ if (timeTooltip) {
+ timeTooltip.update(seekBarRect, seekBarPoint, content);
+ }
+ });
+ };
+
+ return PlayProgressBar;
+ }(Component);
+
+ /**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ PlayProgressBar.prototype.options_ = {
+ children: []
+ };
+
+ // Time tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+ }
+
+ Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+ /**
+ * @file mouse-time-display.js
+ */
+
+ /**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var MouseTimeDisplay = function (_Component) {
+ inherits(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ classCallCheck(this, MouseTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.update = throttle(bind(_this, _this.update), 25);
+ return _this;
+ }
+
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ MouseTimeDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var duration = _this2.player_.duration();
+ var content = formatTime(seekBarPoint * duration, duration);
+
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';
+ _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);
+ });
+ };
+
+ return MouseTimeDisplay;
+ }(Component);
+
+ /**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+ };
+
+ Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+ /**
+ * @file seek-bar.js
+ */
+
+ // The number of seconds the `step*` functions move the timeline.
+ var STEP_SECONDS = 5;
+
+ // The interval at which the bar should update as it progresses.
+ var UPDATE_REFRESH_INTERVAL = 30;
+
+ /**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+ var SeekBar = function (_Slider) {
+ inherits(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ classCallCheck(this, SeekBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.setEventHandlers_();
+ return _this;
+ }
+
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {
+ var _this2 = this;
+
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);
+
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+
+ // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+ this.updateInterval = null;
+
+ this.on(this.player_, ['playing'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+
+ _this2.updateInterval = _this2.setInterval(function () {
+ _this2.requestAnimationFrame(function () {
+ _this2.update();
+ });
+ }, UPDATE_REFRESH_INTERVAL);
+ });
+
+ this.on(this.player_, ['ended', 'pause', 'waiting'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+ });
+
+ this.on(this.player_, ['timeupdate', 'ended'], this.update);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ SeekBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ };
+
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.update_ = function update_(currentTime, percent) {
+ var duration = this.player_.duration();
+
+ // machine readable value of progress bar (percentage complete)
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+
+ // human readable value of progress bar (time complete)
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+
+ // Update the `PlayProgressBar`.
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ };
+
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @returns {number}
+ * The current percent at a number from 0-1
+ */
+
+
+ SeekBar.prototype.update = function update(event) {
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ };
+
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ };
+
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ SeekBar.prototype.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ };
+
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+
+
+ SeekBar.prototype.getPercent = function getPercent() {
+ var percent = this.getCurrentTime_() / this.player_.duration();
+
+ return percent >= 1 ? 1 : percent || 0;
+ };
+
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+
+
+ SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime = this.calculateDistance(event) * this.player_.duration();
+
+ // Don't let video end while scrubbing.
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+
+ // Set new time (tell player to seek to new time)
+ this.player_.currentTime(newTime);
+ };
+
+ SeekBar.prototype.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ SeekBar.prototype.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ };
+
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+
+
+ SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event);
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ if (event) {
+ event.stopPropagation();
+ }
+ this.player_.scrubbing(false);
+
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ };
+
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ };
+
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ };
+
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+
+
+ SeekBar.prototype.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down. By
+ * default it will call `this.handleAction` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.handleAction(event);
+ } else if (_Slider.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Slider.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ return SeekBar;
+ }(Slider);
+
+ /**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+ };
+
+ // MouseTimeDisplay tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+ }
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ SeekBar.prototype.playerEvent = 'timeupdate';
+
+ Component.registerComponent('SeekBar', SeekBar);
+
+ /**
+ * @file progress-control.js
+ */
+
+ /**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+ var ProgressControl = function (_Component) {
+ inherits(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ classCallCheck(this, ProgressControl);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+ _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ ProgressControl.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ };
+
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+
+
+ ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+ // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ };
+
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ };
+
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ ProgressControl.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Disable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+
+ this.addClass('disabled');
+
+ this.enabled_ = false;
+ };
+
+ /**
+ * Enable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+ }(Component);
+
+ /**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+ };
+
+ Component.registerComponent('ProgressControl', ProgressControl);
+
+ /**
+ * @file fullscreen-toggle.js
+ */
+
+ /**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+ var FullscreenToggle = function (_Button) {
+ inherits(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ classCallCheck(this, FullscreenToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document_1[FullscreenApi.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+
+
+ FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ };
+
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ FullscreenToggle.prototype.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+
+ Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+ /**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file volume-level.js
+ */
+
+ /**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeLevel = function (_Component) {
+ inherits(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ classCallCheck(this, VolumeLevel);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ VolumeLevel.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+ }(Component);
+
+ Component.registerComponent('VolumeLevel', VolumeLevel);
+
+ /**
+ * @file volume-bar.js
+ */
+
+ /**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+ var VolumeBar = function (_Slider) {
+ inherits(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ classCallCheck(this, VolumeBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.on('slideractive', _this.updateLastVolume_);
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ };
+
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+
+
+ VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ };
+
+ /**
+ * If the player is muted unmute it.
+ */
+
+
+ VolumeBar.prototype.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ };
+
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+
+
+ VolumeBar.prototype.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+ return this.player_.volume();
+ };
+
+ /**
+ * Increase volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ };
+
+ /**
+ * Decrease volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ };
+
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+
+
+ VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ };
+
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+
+
+ VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ };
+
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+
+
+ VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+ }(Slider);
+
+ /**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+ };
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ VolumeBar.prototype.playerEvent = 'volumechange';
+
+ Component.registerComponent('VolumeBar', VolumeBar);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeControl = function (_Component) {
+ inherits(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumeControl);
+
+ options.vertical = options.vertical || false;
+
+ // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ checkVolumeSupport(_this, player);
+
+ _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+
+ _this.on('mousedown', _this.handleMouseDown);
+ _this.on('touchstart', _this.handleMouseDown);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+ _this.addClass('vjs-slider-active');
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+ _this.removeClass('vjs-slider-active');
+ _this.trigger('sliderinactive');
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeControl.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-control vjs-control ' + orientationClass
+ });
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+ };
+
+ Component.registerComponent('VolumeControl', VolumeControl);
+
+ /**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file mute-toggle.js
+ */
+
+ /**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+ var MuteToggle = function (_Button) {
+ inherits(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ classCallCheck(this, MuteToggle);
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ checkMuteSupport(_this, player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MuteToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MuteToggle.prototype.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ };
+
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+
+
+ MuteToggle.prototype.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ };
+
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3;
+
+ // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+ if (IS_IOS) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ }
+
+ // TODO improve muted icon classes
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, 'vjs-vol-' + i);
+ }
+ addClass(this.el_, 'vjs-vol-' + level);
+ };
+
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ MuteToggle.prototype.controlText_ = 'Mute';
+
+ Component.registerComponent('MuteToggle', MuteToggle);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+ var VolumePanel = function (_Component) {
+ inherits(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumePanel);
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ }
+
+ // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+ return _this;
+ }
+
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ };
+
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ };
+
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+
+
+ VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ }
+
+ // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumePanel.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-panel vjs-control ' + orientationClass
+ });
+ };
+
+ return VolumePanel;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+ };
+
+ Component.registerComponent('VolumePanel', VolumePanel);
+
+ /**
+ * @file menu.js
+ */
+
+ /**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+ var Menu = function (_Component) {
+ inherits(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ classCallCheck(this, Menu);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyPress);
+ return _this;
+ }
+
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+
+
+ Menu.prototype.addItem = function addItem(component) {
+ this.addChild(component);
+ component.on('click', bind(this, function (event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+
+ // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+ if (component.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }));
+ };
+
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+
+
+ Menu.prototype.createEl = function createEl$$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_);
+
+ // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+
+ return el;
+ };
+
+ Menu.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+
+
+ Menu.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepForward();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepBack();
+ }
+ };
+
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+
+
+ Menu.prototype.focus = function focus() {
+ var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+ }(Component);
+
+ Component.registerComponent('Menu', Menu);
+
+ /**
+ * @file menu-button.js
+ */
+
+ /**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+ var MenuButton = function (_Component) {
+ inherits(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, MenuButton);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+ // Add buildCSSClass values to the button, not the wrapper
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+ _this.on(_this.menuButton_, 'focus', _this.handleFocus);
+ _this.on(_this.menuButton_, 'blur', _this.handleBlur);
+
+ _this.on('keydown', _this.handleSubmenuKeyPress);
+ return _this;
+ }
+
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ MenuButton.prototype.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+
+
+ MenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, { menuButton: this });
+
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+ this.hideThreshold_ = 0;
+
+ // Add a title list item to the top
+ if (this.options_.title) {
+ var title = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+
+ this.hideThreshold_ += 1;
+
+ menu.children_.unshift(title);
+ prependTo(title, menu.contentEl());
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+
+
+ MenuButton.prototype.createItems = function createItems() {};
+
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuButton.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ };
+
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+
+
+ MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ // TODO: Fix the CSS so that this isn't necessary
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ MenuButton.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();
+
+ return this.menuButton_.controlText(text, el);
+ };
+
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuButton.prototype.handleClick = function handleClick(event) {
+ // When you click the button it adds focus, which will show the menu.
+ // So we'll remove focus when the mouse leaves the button. Focus is needed
+ // for tab navigation.
+
+ this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {
+ this.unpressButton();
+ this.el_.blur();
+ }));
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ };
+
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+
+
+ MenuButton.prototype.focus = function focus() {
+ this.menuButton_.focus();
+ };
+
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+
+
+ MenuButton.prototype.blur = function blur() {
+ this.menuButton_.blur();
+ };
+
+ /**
+ * This gets called when a `MenuButton` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ MenuButton.prototype.handleFocus = function handleFocus() {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when a `MenuButton` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ MenuButton.prototype.handleBlur = function handleBlur() {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyPress} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ // Up (38) key or Down (40) key press the 'button'
+ } else if (event.which === 38 || event.which === 40) {
+ if (!this.buttonPressed_) {
+ this.pressButton();
+ event.preventDefault();
+ }
+ }
+ };
+
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ }
+ };
+
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+
+
+ MenuButton.prototype.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+ // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ };
+
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+
+
+ MenuButton.prototype.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ };
+
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.disable = function disable() {
+ this.unpressButton();
+
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+
+ this.menuButton_.disable();
+ };
+
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+ }(Component);
+
+ Component.registerComponent('MenuButton', MenuButton);
+
+ /**
+ * @file track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+ var TrackButton = function (_MenuButton) {
+ inherits(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ classCallCheck(this, TrackButton);
+
+ var tracks = options.tracks;
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return possibleConstructorReturn(_this);
+ }
+
+ var updateHandler = bind(_this, _this.update);
+
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+ return _this;
+ }
+
+ return TrackButton;
+ }(MenuButton);
+
+ Component.registerComponent('TrackButton', TrackButton);
+
+ /**
+ * @file menu-item.js
+ */
+
+ /**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+ var MenuItem = function (_ClickableComponent) {
+ inherits(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ classCallCheck(this, MenuItem);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+ return _this;
+ }
+
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: '<span class="vjs-menu-item-text">' + this.localize(this.options_.label) + '</span>',
+ tabIndex: -1
+ }, props), attrs);
+ };
+
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuItem.prototype.handleClick = function handleClick(event) {
+ this.selected(true);
+ };
+
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+
+
+ MenuItem.prototype.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true');
+ // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false');
+ // Indicate un-selected state to screen reader
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+ }(ClickableComponent);
+
+ Component.registerComponent('MenuItem', MenuItem);
+
+ /**
+ * @file text-track-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+ var TextTrackMenuItem = function (_MenuItem) {
+ inherits(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ classCallCheck(this, TextTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.textTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_this, args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ });
+
+ // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+ if (tracks.onchange === undefined) {
+ var event = void 0;
+
+ _this.on(['tap', 'click'], function () {
+ if (_typeof(window_1.Event) !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window_1.Event('change');
+ } catch (err) {
+ // continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document_1.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ }
+
+ // set the default state based on current tracks
+ _this.handleTracksChange();
+ return _this;
+ }
+
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ TextTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var kind = this.track.kind;
+ var kinds = this.track.kinds;
+ var tracks = this.player_.textTracks();
+
+ if (!kinds) {
+ kinds = [kind];
+ }
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ if (track === this.track && kinds.indexOf(track.kind) > -1) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ }
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ };
+
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing';
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage;
+
+ // Don't replace the kind of track across the same language
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ TextTrackMenuItem.prototype.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+ /**
+ * @file off-text-track-menu-item.js
+ */
+
+ /**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var OffTextTrackMenuItem = function (_TextTrackMenuItem) {
+ inherits(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ classCallCheck(this, OffTextTrackMenuItem);
+
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ kind: options.kind,
+ kinds: options.kinds,
+ default: false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ }
+
+ // MenuItem is selectable
+ options.selectable = true;
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ options.multiSelectable = false;
+
+ return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ }
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+ /**
+ * @file text-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+ var TextTrackButton = function (_TrackButton) {
+ inherits(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, TextTrackButton);
+
+ options.tracks = player.textTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ TextTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;
+
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label = void 0;
+
+ if (this.label_) {
+ label = this.label_ + ' off';
+ }
+ // Add an OFF menu item to turn all tracks off
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+
+ this.hideThreshold_ += 1;
+
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // only add tracks that are of an appropriate kind and have a label
+ if (this.kinds_.indexOf(track.kind) > -1) {
+
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+
+ item.addClass('vjs-' + track.kind + '-menu-item');
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+ }(TrackButton);
+
+ Component.registerComponent('TextTrackButton', TextTrackButton);
+
+ /**
+ * @file chapters-track-menu-item.js
+ */
+
+ /**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+ var ChaptersTrackMenuItem = function (_MenuItem) {
+ inherits(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ classCallCheck(this, ChaptersTrackMenuItem);
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime();
+
+ // Modify options for parent MenuItem class's init.
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ };
+
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+
+
+ ChaptersTrackMenuItem.prototype.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime();
+
+ // vjs.log(currentTime, cue.startTime);
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+ /**
+ * @file chapters-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+ var ChaptersButton = function (_TextTrackButton) {
+ inherits(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ classCallCheck(this, ChaptersButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+
+
+ ChaptersButton.prototype.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+ _TextTrackButton.prototype.update.call(this);
+ };
+
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+
+
+ ChaptersButton.prototype.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ }
+
+ // here this.track_ refers to the old track instance
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track;
+
+ // here this.track_ refers to the new track instance
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ };
+
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+
+
+ ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ };
+
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+
+
+ ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+ return this.localize(toTitleCase(this.kind_));
+ };
+
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+
+
+ ChaptersButton.prototype.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ };
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+
+
+ ChaptersButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });
+
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ ChaptersButton.prototype.kind_ = 'chapters';
+
+ /**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ ChaptersButton.prototype.controlText_ = 'Chapters';
+
+ Component.registerComponent('ChaptersButton', ChaptersButton);
+
+ /**
+ * @file descriptions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+ var DescriptionsButton = function (_TextTrackButton) {
+ inherits(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ classCallCheck(this, DescriptionsButton);
+
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+ var tracks = player.textTracks();
+ var changeHandler = bind(_this, _this.handleTracksChange);
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false;
+
+ // Check whether a track of a different kind is showing
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ }
+
+ // If another track is showing, disable this menu button
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DescriptionsButton.prototype.kind_ = 'descriptions';
+
+ /**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+ Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+ /**
+ * @file subtitles-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubtitlesButton = function (_TextTrackButton) {
+ inherits(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ classCallCheck(this, SubtitlesButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ SubtitlesButton.prototype.kind_ = 'subtitles';
+
+ /**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ SubtitlesButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+ /**
+ * @file caption-settings-menu-item.js
+ */
+
+ /**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var CaptionSettingsMenuItem = function (_TextTrackMenuItem) {
+ inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ classCallCheck(this, CaptionSettingsMenuItem);
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ default: false,
+ mode: 'disabled'
+ };
+
+ // CaptionSettingsMenuItem has no concept of 'selected'
+ options.selectable = false;
+
+ options.name = 'CaptionSettingsMenuItem';
+
+ var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+
+ _this.addClass('vjs-texttrack-settings');
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+ return _this;
+ }
+
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+ /**
+ * @file captions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+ var CaptionsButton = function (_TextTrackButton) {
+ inherits(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ classCallCheck(this, CaptionsButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ CaptionsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CaptionsButton.prototype.kind_ = 'captions';
+
+ /**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ CaptionsButton.prototype.controlText_ = 'Captions';
+
+ Component.registerComponent('CaptionsButton', CaptionsButton);
+
+ /**
+ * @file subs-caps-menu-item.js
+ */
+
+ /**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var SubsCapsMenuItem = function (_TextTrackMenuItem) {
+ inherits(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ classCallCheck(this, SubsCapsMenuItem);
+ return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));
+ }
+
+ SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Captions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+ /**
+ * @file sub-caps-button.js
+ */
+ /**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubsCapsButton = function (_TextTrackButton) {
+ inherits(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, SubsCapsButton);
+
+ // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));
+
+ _this.label_ = 'subtitles';
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ SubsCapsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+ SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+ /**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+ SubsCapsButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+ /**
+ * @file audio-track-menu-item.js
+ */
+
+ /**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+ var AudioTrackMenuItem = function (_MenuItem) {
+ inherits(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ classCallCheck(this, AudioTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.audioTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+
+ _this.addClass('vjs-' + track.kind + '-menu-item');
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Descriptions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.enabled = track === this.track;
+ }
+ };
+
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+
+
+ AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+ /**
+ * @file audio-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+ var AudioTrackButton = function (_TrackButton) {
+ inherits(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, AudioTrackButton);
+
+ options.tracks = player.audioTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+
+
+ AudioTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+ }(TrackButton);
+
+ /**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ AudioTrackButton.prototype.controlText_ = 'Audio Track';
+ Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+ /**
+ * @file playback-rate-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+ var PlaybackRateMenuItem = function (_MenuItem) {
+ inherits(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ classCallCheck(this, PlaybackRateMenuItem);
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10);
+
+ // Modify options for parent MenuItem class's init.
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+ return _this;
+ }
+
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player().playbackRate(this.rate);
+ };
+
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuItem.prototype.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+ }(MenuItem);
+
+ /**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuItem.prototype.contentElType = 'button';
+
+ Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+ /**
+ * @file playback-rate-menu-button.js
+ */
+
+ /**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+ var PlaybackRateMenuButton = function (_MenuButton) {
+ inherits(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ classCallCheck(this, PlaybackRateMenuButton);
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ _this.updateVisibility();
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+ _this.on(player, 'ratechange', _this.updateLabel);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+
+ el.appendChild(this.labelEl_);
+
+ return el;
+ };
+
+ PlaybackRateMenuButton.prototype.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+
+
+ PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Updates ARIA accessibility attributes
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ };
+
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates();
+
+ // this will select first one if the last one currently selected
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+ this.player().playbackRate(newRate);
+ };
+
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ };
+
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ };
+
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ };
+
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+ }(MenuButton);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+ Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+ /**
+ * @file spacer.js
+ */
+
+ /**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+ var Spacer = function (_Component) {
+ inherits(Spacer, _Component);
+
+ function Spacer() {
+ classCallCheck(this, Spacer);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ Spacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ Spacer.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+ }(Component);
+
+ Component.registerComponent('Spacer', Spacer);
+
+ /**
+ * @file custom-control-spacer.js
+ */
+
+ /**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+ var CustomControlSpacer = function (_Spacer) {
+ inherits(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ classCallCheck(this, CustomControlSpacer);
+ return possibleConstructorReturn(this, _Spacer.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ CustomControlSpacer.prototype.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ });
+
+ // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+ el.innerHTML = '\xA0';
+ return el;
+ };
+
+ return CustomControlSpacer;
+ }(Spacer);
+
+ Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+ /**
+ * @file control-bar.js
+ */
+
+ /**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+ var ControlBar = function (_Component) {
+ inherits(ControlBar, _Component);
+
+ function ControlBar() {
+ classCallCheck(this, ControlBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ControlBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+ }(Component);
+
+ /**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+ };
+
+ Component.registerComponent('ControlBar', ControlBar);
+
+ /**
+ * @file error-display.js
+ */
+
+ /**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+ var ErrorDisplay = function (_ModalDialog) {
+ inherits(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ classCallCheck(this, ErrorDisplay);
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.on(player, 'error', _this.open);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+
+
+ ErrorDisplay.prototype.content = function content() {
+ var error = this.player().error();
+
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+ }(ModalDialog);
+
+ /**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+ });
+
+ Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+ /**
+ * @file text-track-settings.js
+ */
+
+ var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+
+ var COLOR_BLACK = ['#000', 'Black'];
+ var COLOR_BLUE = ['#00F', 'Blue'];
+ var COLOR_CYAN = ['#0FF', 'Cyan'];
+ var COLOR_GREEN = ['#0F0', 'Green'];
+ var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+ var COLOR_RED = ['#F00', 'Red'];
+ var COLOR_WHITE = ['#FFF', 'White'];
+ var COLOR_YELLOW = ['#FF0', 'Yellow'];
+
+ var OPACITY_OPAQUE = ['1', 'Opaque'];
+ var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+ var OPACITY_TRANS = ['0', 'Transparent'];
+
+ // Configuration for the various <select> elements in the DOM of this component.
+ //
+ // Possible keys include:
+ //
+ // `default`:
+ // The default option index. Only needs to be provided if not zero.
+ // `parser`:
+ // A function which is used to parse the value from the selected option in
+ // a customized way.
+ // `selector`:
+ // The selector used to find the associated <select> element.
+ var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ default: 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+ };
+
+ selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+ /**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+ }
+
+ /**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+
+ return parseOptionValue(value, parser);
+ }
+
+ /**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+ function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+ }
+
+ /**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+ var TextTrackSettings = function (_ModalDialog) {
+ inherits(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ classCallCheck(this, TextTrackSettings);
+
+ options.temporary = false;
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.updateDisplay = bind(_this, _this.updateDisplay);
+
+ // fill the modal and pretend we have opened it
+ _this.fill();
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults();
+
+ // Grab `persistTextTrackSettings` from the player options if not passed in child options
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+ return _this;
+ }
+
+ TextTrackSettings.prototype.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {
+ var _this2 = this;
+
+ var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+ var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+
+ return ['<' + type + ' id="' + id + '" class="' + (type === 'label' ? 'vjs-label' : '') + '">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby="' + selectLabelledbyIds + '">'].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+
+ return ['<option id="' + optionId + '" value="' + o[0] + '" ', 'aria-labelledby="' + selectLabelledbyIds + ' ' + optionId + '">', _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ };
+
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {
+ var legendId = 'captions-text-legend-' + this.id_;
+
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {
+ var legendId = 'captions-background-' + this.id_;
+
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {
+ var legendId = 'captions-window-' + this.id_;
+
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ };
+
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ };
+
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ['<button class="vjs-default-button" title="' + defaultsDescription + '">', this.localize('Reset'), '<span class="vjs-control-text"> ' + defaultsDescription + '</span>', '</button>', '<button class="vjs-done-button">' + this.localize('Done') + '</button>'].join('')
+ });
+ };
+
+ TextTrackSettings.prototype.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ TextTrackSettings.prototype.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ TextTrackSettings.prototype.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ };
+
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ };
+
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ };
+
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+
+
+ TextTrackSettings.prototype.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config.default : 0;
+
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ };
+
+ /**
+ * Restore texttrack settings from localStorage
+ */
+
+
+ TextTrackSettings.prototype.restoreSettings = function restoreSettings() {
+ var values = void 0;
+
+ try {
+ values = JSON.parse(window_1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log$1.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ };
+
+ /**
+ * Save text track settings to localStorage
+ */
+
+
+ TextTrackSettings.prototype.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window_1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window_1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log$1.warn(err);
+ }
+ };
+
+ /**
+ * Update display of text track settings
+ */
+
+
+ TextTrackSettings.prototype.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ this.off(document_1, 'keydown', this.handleKeyDown);
+
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+ }(ModalDialog);
+
+ Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+ /**
+ * @file resize-manager.js
+ */
+
+ /**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+ var ResizeManager = function (_Component) {
+ inherits(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ classCallCheck(this, ResizeManager);
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window_1.ResizeObserver;
+
+ // if `null` was passed, we want to disable the ResizeObserver
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ }
+
+ // Only create an element when ResizeObserver isn't available
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));
+
+ _this.ResizeObserver = options.ResizeObserver || window_1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _this);
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+ return _this;
+ }
+
+ ResizeManager.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager'
+ });
+ };
+
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+
+
+ ResizeManager.prototype.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ ResizeManager.prototype.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.el_ && this.el_.contentWindow) {
+ off(this.el_.contentWindow, 'resize', this.debouncedHandler_);
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+ };
+
+ return ResizeManager;
+ }(Component);
+
+ Component.registerComponent('ResizeManager', ResizeManager);
+
+ /**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+ var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el();
+
+ // if `el.src` is set, that source will be loaded.
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = '';
+
+ // if there are no sources, do not fire sourceset
+ if (!sources.length) {
+ return false;
+ }
+
+ // only count valid/non-duplicate source elements
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ }
+
+ // there were no valid sources
+ if (!srcUrls.length) {
+ return false;
+ }
+
+ // there is only one valid source element url
+ // use that
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+ };
+
+ /**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+ var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document_1.createElement(this.nodeName.toLowerCase());
+
+ // set innerHTML to the value provided
+ dummy.innerHTML = v;
+
+ // make a document fragment to hold the nodes from dummy
+ var docFrag = document_1.createDocumentFragment();
+
+ // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ }
+
+ // remove content
+ this.innerText = '';
+
+ // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+ window_1.Element.prototype.appendChild.call(this, docFrag);
+
+ // then return the result that innerHTML's setter would
+ return this.innerHTML;
+ }
+ });
+
+ /**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+ var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+
+ return descriptor;
+ };
+
+ var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, window_1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+ };
+
+ /**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+ var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el();
+
+ // make sure firstSourceWatch isn't setup twice.
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+
+ sourcesetLoad(tech);
+
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ }
+
+ // store the old function
+ old[k] = el[k];
+
+ // call the old function with a sourceset if a source
+ // was loaded
+ el[k] = appendWrapper(old[k]);
+ });
+
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ };
+
+ // on the first sourceset, we need to revert our changes
+ tech.one('sourceset', el.resetSourceWatch_);
+ };
+
+ /**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+ var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window_1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window_1.Element.prototype.setAttribute.call(this, 'src', v);
+
+ return v;
+ }
+ });
+
+ var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+ };
+
+ /**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+ var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el();
+
+ // make sure sourceset isn't setup twice.
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v);
+
+ // we use the getter here to get the actual value set on src
+ tech.triggerSourceset(el.src);
+
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el);
+
+ // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+ };
+
+ var _templateObject$1 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.']);
+
+ /**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+ var Html5 = function (_Tech) {
+ inherits(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ classCallCheck(this, Html5);
+
+ var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));
+
+ var source = options.source;
+ var crossoriginTracks = false;
+
+ // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ }
+
+ // setup sourceset after late sourceset/init
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+ _this.remoteTextTracks().addTrack(node.track);
+ _this.textTracks().addTrack(node.track);
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log$1.warn(tsml(_templateObject$1));
+ }
+
+ // prevent iOS Safari from disabling metadata text tracks during native playback
+ _this.restoreMetadataTracksInIOSNativePlayer_();
+
+ // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ }
+
+ // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+ return _this;
+ }
+
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ Html5.prototype.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null;
+
+ // tech will handle clearing of the emulated track list
+ _Tech.prototype.dispose.call(this);
+ };
+
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+
+
+ Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ };
+
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState = void 0;
+
+ // captures a snapshot of every metadata track's current state
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ };
+
+ // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ }
+ // we only want this handler to be executed on the first 'change' event
+ textTracks.removeEventListener('change', restoreTrackMode);
+ };
+
+ // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ });
+
+ // start updating the snapshot again after leaving fullscreen
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ };
+
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {String} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {Boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+
+
+ Html5.prototype.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this['featuresNative' + type + 'Tracks']) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + 'TracksListeners_']) {
+ Object.keys(this[lowerCaseType + 'TracksListeners_']).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + 'Tracks'];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + 'TracksListeners_'][eventName]);
+ });
+ }
+
+ this['featuresNative' + type + 'Tracks'] = !override;
+ this[lowerCaseType + 'TracksListeners_'] = null;
+
+ this.proxyNativeTracksForType_(lowerCaseType);
+ };
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ };
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ };
+
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+
+ elTracks.addEventListener(eventName, listener);
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ });
+
+ // Remove (native) tracks that are not used anymore
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ };
+
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ };
+
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Html5.prototype.createEl = function createEl$$1() {
+ var el = this.options_.tag;
+
+ // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document_1.createElement('video');
+
+ // determine if native controls should be used
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ class: 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ }
+
+ // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ };
+
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+
+
+ Html5.prototype.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+
+ return;
+ }
+
+ // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+ var eventsToTrigger = ['loadstart'];
+
+ // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+ eventsToTrigger.push('loadedmetadata');
+
+ // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ }
+
+ // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ }
+
+ // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ }
+
+ // We still need to give the player time to add event listeners
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ };
+
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+
+
+ Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log$1(e, 'Video is not ready. (Video.js)');
+ // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ };
+
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+
+
+ Html5.prototype.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+ return this.el_.duration || NaN;
+ };
+
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+
+
+ Html5.prototype.width = function width() {
+ return this.el_.offsetWidth;
+ };
+
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+
+
+ Html5.prototype.height = function height() {
+ return this.el_.offsetHeight;
+ };
+
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+
+
+ Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', { isFullscreen: false });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+
+ this.trigger('fullscreenchange', { isFullscreen: true });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ };
+
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+
+
+ Html5.prototype.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window_1.navigator && window_1.navigator.userAgent || '';
+
+ // Seems to be broken in Chromium/Chrome && Safari in Leopard
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+
+
+ Html5.prototype.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play();
+
+ // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ };
+
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+
+
+ Html5.prototype.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ };
+
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ Html5.prototype.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ }
+
+ // Setting src through `src` instead of `setSrc` will be deprecated
+ this.setSrc(_src);
+ };
+
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+
+
+ Html5.prototype.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ };
+
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+
+
+ Html5.prototype.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+ return this.el_.currentSrc;
+ };
+
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+
+
+ Html5.prototype.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ };
+
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+ var htmlTrackElement = document_1.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+ if (options.default) {
+ htmlTrackElement.default = options.default;
+ }
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+
+
+ Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+
+
+ Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window_1.performance && typeof window_1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window_1.performance.now();
+ } else if (window_1.performance && window_1.performance.timing && typeof window_1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window_1.Date.now() - window_1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+ }(Tech);
+
+ /* HTML5 Support Testing ---------------------------------------------------- */
+
+ if (isReal()) {
+
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document_1.createElement('video');
+ var track = document_1.createElement('track');
+
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+ }
+
+ /**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+ Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+ };
+
+ /**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+ };
+
+ /**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+ Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+ Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted;
+
+ // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+ Html5.TEST_VID.muted = !muted;
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+ Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ }
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+ Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document_1.createElement('video'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('video'), 'innerHTML', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'innerHTML', { get: noop, set: noop });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+ };
+
+ /**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+ };
+
+ /**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+ };
+
+ /**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+ };
+
+ /**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+ Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+ Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+ Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+ Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+ // TODO: Previous comment: No longer appears to be used. Can probably be removed.
+ // Is this true?
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresFullscreenResize = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresProgressEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+ Html5.prototype.featuresTimeupdateEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+ Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+ Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+ Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();
+
+ // HTML5 Feature detection and Device Fixes --------------------------------- //
+ var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+ var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+ Html5.patchCanPlayType = function () {
+
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+ return canPlayType.call(this, type);
+ };
+ }
+ };
+
+ Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+ };
+
+ // by default, patch the media element
+ Html5.patchCanPlayType();
+
+ Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ }
+
+ // remove any child track or source nodes to prevent their loading
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ }
+
+ // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+ el.removeAttribute('src');
+
+ // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // not supported
+ }
+ })();
+ }
+ };
+
+ Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ }
+
+ // remove any src reference.
+ // not setting `src=''` because that throws an error
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // satisfy linter
+ }
+ })();
+ }
+ };
+
+ /* Native HTML5 element property wrapping ----------------------------------- */
+ // Wrap native boolean attributes with getters that check both property and attribute
+ // The list is as followed:
+ // muted, defaultMuted, autoplay, controls, loop, playsinline
+ [
+ /**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+ 'controls',
+
+ /**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+ });
+
+ // Wrap native boolean attributes with setters that set both property and attribute
+ // The list is as followed:
+ // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+ // setControls is special-cased above
+ [
+ /**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+ });
+
+ // Wrap native properties with a getter
+ // The list is as followed
+ // paused, currentTime, buffered, volume, poster, preload, error, seeking
+ // seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+ // readyState, videoWidth, videoHeight
+ [
+ /**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+ 'paused',
+
+ /**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+ 'currentTime',
+
+ /**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+ 'buffered',
+
+ /**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+ 'poster',
+
+ /**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+ 'error',
+
+ /**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+ 'seeking',
+
+ /**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+ 'seekable',
+
+ /**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+ 'ended',
+
+ /**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'defaultPlaybackRate',
+
+ /**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+ 'played',
+
+ /**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+ 'networkState',
+
+ /**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+ 'readyState',
+
+ /**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoWidth',
+
+ /**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+ });
+
+ // Wrap native properties with a setter in this format:
+ // set + toTitleCase(name)
+ // The list is as follows:
+ // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+ [
+ /**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+ 'src',
+
+ /**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+ 'poster',
+
+ /**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+ 'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+ });
+
+ // wrap native functions with a function
+ // The list is as follows:
+ // pause, load, play
+ [
+ /**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+ 'pause',
+
+ /**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+ 'load',
+
+ /**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+ 'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+ });
+
+ Tech.withSourceHandlers(Html5);
+
+ /**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+ Html5.nativeSourceHandler = {};
+
+ /**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+ };
+
+ /**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+ Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type);
+
+ // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+
+ return Html5.nativeSourceHandler.canPlayType('video/' + ext);
+ }
+
+ return '';
+ };
+
+ /**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+ Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+ };
+
+ /**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+ Html5.nativeSourceHandler.dispose = function () {};
+
+ // Register the native source handler
+ Html5.registerSourceHandler(Html5.nativeSourceHandler);
+
+ Tech.registerTech('Html5', Html5);
+
+ var _templateObject$2 = taggedTemplateLiteralLoose(['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n '], ['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n ']);
+
+ // The following tech events are simply re-triggered
+ // on the player when they happen
+ var TECH_EVENTS_RETRIGGER = [
+ /**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+ 'progress',
+
+ /**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+ 'abort',
+
+ /**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+ 'suspend',
+
+ /**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+ 'emptied',
+ /**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+ 'stalled',
+
+ /**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+ 'loadedmetadata',
+
+ /**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+ /**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+ 'loadeddata',
+
+ /**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+ /**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+ 'timeupdate',
+
+ /**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+ /**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+ 'resize',
+
+ /**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+ 'volumechange',
+
+ /**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+ 'texttrackchange'];
+
+ // events to queue when playback rate is zero
+ // this is a hash for the sole purpose of mapping non-camel-cased event names
+ // to camel-cased function names
+ var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+ };
+
+ /**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+ var Player = function (_Component) {
+ inherits(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ classCallCheck(this, Player);
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || 'vjs_video_' + newGUID();
+
+ // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+ options = assign(Player.getTagSettings(tag), options);
+
+ // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+ options.initChildren = false;
+
+ // Same with creating the element
+ options.createEl = false;
+
+ // don't auto mixin the evented mixin
+ options.evented = false;
+
+ // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+ options.reportTouchActivity = false;
+
+ // If language is not set, get the closest lang attribute
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+ element = element.parentNode;
+ }
+ }
+ }
+
+ // Run base component initializing with new options
+
+ // Tracks when a tech changes the poster
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.isPosterFromTech_ = false;
+
+ // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+ _this.queuedCallbacks_ = [];
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ _this.isReady_ = false;
+
+ // Init state hasStarted_
+ _this.hasStarted_ = false;
+
+ // Init state userActive_
+ _this.userActive_ = false;
+
+ // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ }
+
+ // Store the original tag used to set options
+ _this.tag = tag;
+
+ // Store the tag attributes used to restore html5 element
+ _this.tagAttributes = tag && getAttributes(tag);
+
+ // Update current language
+ _this.language(_this.options_.language);
+
+ // Update Supported Languages
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+
+ Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {
+ languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ // Cache for video property values.
+ _this.cache_ = {};
+
+ // Set poster
+ _this.poster_ = options.poster || '';
+
+ // Set controls
+ _this.controls_ = !!options.controls;
+
+ // Set default values for lastVolume
+ _this.cache_.lastVolume = 1;
+
+ // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+ tag.controls = false;
+ tag.removeAttribute('controls');
+
+ // the attribute overrides the option
+ if (tag.hasAttribute('autoplay')) {
+ _this.options_.autoplay = true;
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ }
+
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+ _this.scrubbing_ = false;
+
+ _this.el_ = _this.createEl();
+
+ // Set default value for lastPlaybackRate
+ _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();
+
+ // Make this an evented object and use `el_` as its event bus.
+ evented(_this, { eventBusKey: 'el_' });
+
+ // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+ var playerOptionsCopy = mergeOptions(_this.options_);
+
+ // Load plugins
+ if (options.plugins) {
+ var plugins = options.plugins;
+
+ Object.keys(plugins).forEach(function (name$$1) {
+ if (typeof this[name$$1] === 'function') {
+ this[name$$1](plugins[name$$1]);
+ } else {
+ throw new Error('plugin "' + name$$1 + '" does not exist');
+ }
+ }, _this);
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+
+ _this.middleware_ = [];
+
+ _this.initChildren();
+
+ // Set isAudio based on whether or not an audio tag was used
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+ // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ }
+
+ // Set ARIA label and region role depending on player type
+ _this.el_.setAttribute('role', 'region');
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ }
+
+ // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // if (browser.TOUCH_ENABLED) {
+ // this.addClass('vjs-touch-enabled');
+ // }
+
+ // iOS Safari has broken hover handling
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ }
+
+ // Make player easily findable by ID
+ Player.players[_this.id_] = _this;
+
+ // Add a major version class to aid css in plugins
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass('vjs-v' + majorVersion);
+
+ // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+ _this.userActive(true);
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+ _this.on('fullscreenchange', _this.handleFullscreenChange_);
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.changingSrc_ = false;
+ _this.playWaitingForReady_ = false;
+ _this.playOnLoadstart_ = null;
+ return _this;
+ }
+
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ Player.prototype.dispose = function dispose() {
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose');
+ // prevent dispose from being called twice
+ this.off('dispose');
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ }
+
+ // Kill reference to this player
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this);
+
+ // the actual .el_ is removed here
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ Player.prototype.createEl = function createEl$$1() {
+ var tag = this.tag;
+ var el = void 0;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ }
+
+ // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document_1.createElement('video');
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+
+ playerElIngest = this.playerElIngest_ = el;
+ // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+ Object.keys(el).forEach(function (k) {
+ tag[k] = el[k];
+ });
+ }
+
+ // set tabindex to -1 to remove the video element from the focus order
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1';
+
+ // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 if JAWS is not being used
+ if (IE_VERSION) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ }
+
+ // Remove width/height attrs from tag so CSS can make it 100% width/height
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ });
+
+ // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech';
+
+ // Make player findable on elements
+ tag.player = el.player = this;
+ // Default state of video is paused
+ this.addClass('vjs-paused');
+
+ // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ // Pass in the width/height/aspectRatio options which will update the style el
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio);
+
+ // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ }
+
+ // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+ tag.initNetworkState_ = tag.networkState;
+
+ // Wrap video tag in div (el/box) container
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ }
+
+ // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+ prependTo(tag, el);
+ this.children_.unshift(tag);
+
+ // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+ this.el_.setAttribute('lang', this.language_);
+
+ this.el_ = el;
+
+ return el;
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+
+
+ Player.prototype.width = function width(value) {
+ return this.dimension('width', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+
+
+ Player.prototype.height = function height(value) {
+ return this.dimension('height', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+
+
+ Player.prototype.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log$1.error('Improper value "' + value + '" supplied for for ' + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ };
+
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will toggle the fluid class.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+
+
+ Player.prototype.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+
+
+ Player.prototype.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ }
+
+ // Check for width:height format
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+ this.aspectRatio_ = ratio;
+
+ // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+ this.fluid(true);
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+
+
+ Player.prototype.updateStyleEl_ = function updateStyleEl_() {
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width = void 0;
+ var height = void 0;
+ var aspectRatio = void 0;
+ var idClass = void 0;
+
+ // The aspect ratio is either used directly or to calculate width and height.
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ }
+
+ // Get the ratio as a decimal we can use to calculate dimensions
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ }
+
+ // Ensure the CSS class is valid by starting with an alpha character
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ }
+
+ // Ensure the right class is still on the player for the style element
+ this.addClass(idClass);
+
+ setTextContent(this.styleEl_, '\n .' + idClass + ' {\n width: ' + width + 'px;\n height: ' + height + 'px;\n }\n\n .' + idClass + '.vjs-fluid {\n padding-top: ' + ratioMultiplier * 100 + '%;\n }\n ');
+ };
+
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+
+
+ Player.prototype.loadTech_ = function loadTech_(techName, source) {
+ var _this2 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+ // get rid of the HTML5 video tag as soon as we are using another tech
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName;
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ this.isReady_ = false;
+
+ // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();
+
+ // Grab tech-specific options from player options and add source and parent element to use.
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + '_' + camelTechName + '_api',
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset
+ };
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ techOptions[props.getterName] = _this2[props.privateName];
+ });
+
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ }
+
+ // Initialize tech instance
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error('No Tech named \'' + titleTechName + '\' exists! \'' + titleTechName + '\' should be registered using videojs.registerTech()\'');
+ }
+
+ this.tech_ = new TechClass(techOptions);
+
+ // player.triggerReady is always async, so don't need this to be async
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+ // Listen to all HTML5-defined events and trigger them on the player
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);
+ });
+
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this2.on(_this2.tech_, event, function (eventObj) {
+ if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {
+ _this2.queuedCallbacks_.push({
+ callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),
+ event: eventObj
+ });
+ return;
+ }
+ _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);
+ });
+ });
+
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+
+ // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ }
+
+ // Get rid of the original video tag reference after the first tech is loaded
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ };
+
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+
+
+ Player.prototype.unloadTech_ = function unloadTech_() {
+ var _this3 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ _this3[props.privateName] = _this3[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+
+ this.isReady_ = false;
+
+ this.tech_.dispose();
+
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ };
+
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+
+
+ Player.prototype.tech = function tech(safety) {
+ if (safety === undefined) {
+ log$1.warn(tsml(_templateObject$2));
+ }
+
+ return this.tech_;
+ };
+
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+
+
+ Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_();
+
+ // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+ this.on(this.tech_, 'mousedown', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+
+ // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);
+
+ // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ };
+
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+
+
+ Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mousedown', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ };
+
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+
+
+ Player.prototype.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady();
+
+ // Keep the same volume as before
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ }
+
+ // Look if the tech found a higher resolution poster while loading
+ this.handleTechPosterChange_();
+
+ // Update the duration if available
+ this.handleTechDurationChange_();
+ };
+
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking');
+
+ // reset the error state
+ this.error(null);
+
+ // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ }
+
+ // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+ this.manualAutoplay_(this.autoplay());
+ };
+
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+
+
+ Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this4 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this4.muted();
+
+ _this4.muted(true);
+
+ var playPromise = _this4.play();
+
+ if (!playPromise || !playPromise.then || !playPromise.catch) {
+ return;
+ }
+
+ return playPromise.catch(function (e) {
+ // restore old value of muted on failure
+ _this4.muted(previouslyMuted);
+ });
+ };
+
+ var promise = void 0;
+
+ if (type === 'any') {
+ promise = this.play();
+
+ if (promise && promise.then && promise.catch) {
+ promise.catch(function () {
+ return muted();
+ });
+ }
+ } else if (type === 'muted') {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!promise || !promise.then || !promise.catch) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this4.trigger({ type: 'autoplay-success', autoplay: type });
+ }).catch(function (e) {
+ _this4.trigger({ type: 'autoplay-failure', autoplay: type });
+ });
+ };
+
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+
+
+ Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {
+ var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ }
+
+ // if we are a blob url, don't update the source cache
+ // blob urls can arise when playback is done via Media Source Extension (MSE)
+ // such as m3u8 sources with @videojs/http-streaming (VHS)
+ if (/^blob:/.test(src)) {
+ return;
+ }
+
+ // make sure all the caches are set to default values
+ // to prevent null checking
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || [];
+
+ // try to get the type of the src that was passed in
+ if (src && !type) {
+ type = findMimetype(this, src);
+ }
+
+ // update `currentSource` cache always
+ this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });
+
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ }
+
+ // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources;
+ // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ }
+
+ // update the tech `src` cache
+ this.cache_.src = src;
+ };
+
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+
+
+ Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this5 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ // update the source to the intial source right away
+ // in some cases this will be empty string
+ this.updateSourceCaches_(event.src);
+
+ // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+ // as this function will be called again.
+ if (!event.src) {
+ var updateCache = function updateCache(e) {
+ if (e.type !== 'sourceset') {
+ _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));
+ }
+
+ _this5.tech_.off(['sourceset', 'loadstart'], updateCache);
+ };
+
+ this.tech_.one(['sourceset', 'loadstart'], updateCache);
+ }
+ }
+
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ };
+
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+
+
+ Player.prototype.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ };
+
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+
+ // hide the poster when the user hits play
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+ this.trigger('play');
+ };
+
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+
+
+ Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+ this.trigger('ratechange');
+ };
+
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+
+
+ Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this6 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+ this.trigger('waiting');
+ this.one('timeupdate', function () {
+ return _this6.removeClass('vjs-waiting');
+ });
+ };
+
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplay');
+ };
+
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplaythrough');
+ };
+
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+ this.trigger('playing');
+ };
+
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeking');
+ };
+
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeked');
+ };
+
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+
+
+ Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+ this.trigger('firstplay');
+ };
+
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+
+
+ Player.prototype.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+ this.trigger('pause');
+ };
+
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+
+
+ Player.prototype.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ended');
+ };
+
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ };
+
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mousedown
+ * @private
+ */
+
+
+ Player.prototype.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ };
+
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+
+
+ Player.prototype.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ }
+
+ // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ };
+
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+
+
+ Player.prototype.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ };
+
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ };
+
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ };
+
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ };
+
+ /**
+ * Fired when the player switches in or out of fullscreen mode
+ *
+ * @private
+ * @listens Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ };
+
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+
+
+ Player.prototype.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ };
+
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ };
+
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+
+
+ Player.prototype.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+
+ this.error(error);
+ };
+
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+
+
+ Player.prototype.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+ this.trigger('textdata', data);
+ };
+
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+
+
+ Player.prototype.getCache = function getCache() {
+ return this.cache_;
+ };
+
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+
+
+ Player.prototype.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set$1(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log$1(e);
+ throw e;
+ }
+ }, true);
+ };
+
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+
+
+ Player.prototype.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get$1(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ }
+
+ // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);
+ throw e;
+ }
+
+ // When a method isn't available on the object it throws a TypeError
+ if (e.name === 'TypeError') {
+ log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);
+ this.tech_.isReady_ = false;
+ throw e;
+ }
+
+ // If error unknown, just log and throw
+ log$1(e);
+ throw e;
+ }
+ };
+
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+
+
+ Player.prototype.play = function play() {
+ var _this7 = this;
+
+ var PromiseClass = this.options_.Promise || window_1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this7.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ };
+
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+
+
+ Player.prototype.play_ = function play_() {
+ var _this8 = this;
+
+ var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;
+
+ // If this is called while we have a play queued up on a loadstart, remove
+ // that listener to avoid getting in a potentially bad state.
+ if (this.playOnLoadstart_) {
+ this.off('loadstart', this.playOnLoadstart_);
+ }
+
+ // If the player/tech is not ready, queue up another call to `play()` for
+ // when it is. This will loop back into this method for another attempt at
+ // playback when the tech is ready.
+ if (!this.isReady_) {
+
+ // Bail out if we're already waiting for `ready`!
+ if (this.playWaitingForReady_) {
+ return;
+ }
+
+ this.playWaitingForReady_ = true;
+ this.ready(function () {
+ _this8.playWaitingForReady_ = false;
+ callback(_this8.play());
+ });
+
+ // If the player/tech is ready and we have a source, we can attempt playback.
+ } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {
+ callback(this.techGet_('play'));
+ return;
+
+ // If the tech is ready, but we do not have a source, we'll need to wait
+ // for both the `ready` and a `loadstart` when the source is finally
+ // resolved by middleware and set on the player.
+ //
+ // This can happen if `play()` is called while changing sources or before
+ // one has been set on the player.
+ } else {
+
+ this.playOnLoadstart_ = function () {
+ _this8.playOnLoadstart_ = null;
+ callback(_this8.play());
+ };
+
+ this.one('loadstart', this.playOnLoadstart_);
+ }
+ };
+
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+
+
+ Player.prototype.pause = function pause() {
+ this.techCall_('pause');
+ };
+
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+
+
+ Player.prototype.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ };
+
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+
+
+ Player.prototype.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ };
+
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+
+
+ Player.prototype.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ };
+
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+
+
+ Player.prototype.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ }
+
+ // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ };
+
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+
+
+ Player.prototype.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds);
+
+ // Standardize on Infinity for signaling video is live
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+ } else {
+ this.removeClass('vjs-live');
+ }
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ };
+
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ };
+
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ };
+
+ //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+
+
+ Player.prototype.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ };
+
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+
+
+ Player.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ };
+
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+
+
+ Player.prototype.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ };
+
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+
+
+ Player.prototype.volume = function volume(percentAsDecimal) {
+ var vol = void 0;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ }
+
+ // Default to 1 when returning current volume.
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ };
+
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+
+
+ Player.prototype.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+ return this.techGet_('muted') || false;
+ };
+
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+
+
+ Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+ return this.techGet_('defaultMuted') || false;
+ };
+
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+
+
+ Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+ return this.cache_.lastVolume;
+ };
+
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+
+
+ Player.prototype.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ };
+
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+
+
+ Player.prototype.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ return;
+ }
+ return !!this.isFullscreen_;
+ };
+
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.requestFullscreen = function requestFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(true);
+
+ if (fsApi.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document_1, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {
+ this.isFullscreen(document_1[fsApi.fullscreenElement]);
+
+ // If cancelling fullscreen, remove event listener.
+ if (this.isFullscreen() === false) {
+ off(document_1, fsApi.fullscreenchange, documentFullscreenChange);
+ }
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }));
+
+ this.el_[fsApi.requestFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.exitFullscreen = function exitFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(false);
+
+ // Check for browser element fullscreen support
+ if (fsApi.requestFullscreen) {
+ document_1[fsApi.exitFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+
+
+ Player.prototype.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true;
+
+ // Storing original doc overflow value to return to when fullscreen is off
+ this.docOrigOverflow = document_1.documentElement.style.overflow;
+
+ // Add listener for esc key to exit fullscreen
+ on(document_1, 'keydown', bind(this, this.fullWindowOnEscKey));
+
+ // Hide any scroll bars
+ document_1.documentElement.style.overflow = 'hidden';
+
+ // Apply fullscreen styles
+ addClass(document_1.body, 'vjs-full-window');
+
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enterFullWindow');
+ };
+
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+
+
+ Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (event.keyCode === 27) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ };
+
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+
+
+ Player.prototype.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document_1, 'keydown', this.fullWindowOnEscKey);
+
+ // Unhide scroll bars.
+ document_1.documentElement.style.overflow = this.docOrigOverflow;
+
+ // Remove fullscreen styles
+ removeClass(document_1.body, 'vjs-full-window');
+
+ // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('exitFullWindow');
+ };
+
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Player.prototype.canPlayType = function canPlayType(type) {
+ var can = void 0;
+
+ // Loop through each playback technology in the options order
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the current tech is defined before continuing
+ if (!tech) {
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ continue;
+ }
+
+ // Check if the browser supports this technology
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+
+
+ Player.prototype.selectSource = function selectSource(sources) {
+ var _this9 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ return false;
+ });
+
+ // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found = void 0;
+
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+
+ return found;
+ };
+
+ var foundSourceAndTech = void 0;
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {
+ return { source: source, tech: techName };
+ }
+ };
+
+ // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ };
+
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+
+
+ Player.prototype.src = function src(source) {
+ var _this10 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ }
+ // filter out invalid sources and turn our source into
+ // an array of source objects
+ var sources = filterSource(source);
+
+ // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+ return;
+ }
+
+ // intial sources
+ this.changingSrc_ = true;
+
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]);
+
+ // middlewareSource is the source after it has been changed by middleware
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this10.middleware_ = mws;
+
+ // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+ _this10.cache_.sources = sources;
+ _this10.updateSourceCaches_(middlewareSource);
+
+ var err = _this10.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this10.src(sources.slice(1));
+ }
+
+ _this10.changingSrc_ = false;
+
+ // We need to wrap this in a timeout to give folks a chance to add error event handlers
+ _this10.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+
+ // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+ _this10.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this10.tech_);
+ });
+ };
+
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {Boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+
+
+ Player.prototype.src_ = function src_(source) {
+ var _this11 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true;
+ // load this technology with the chosen source
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this11.changingSrc_ = false;
+ });
+ return false;
+ }
+
+ // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+ this.ready(function () {
+
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+
+ return false;
+ };
+
+ /**
+ * Begin loading the src data.
+ */
+
+
+ Player.prototype.load = function load() {
+ this.techCall_('load');
+ };
+
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * and calls `reset` on the tech`.
+ */
+
+
+ Player.prototype.reset = function reset() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ };
+
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+
+
+ Player.prototype.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = [];
+
+ // assume `{}` or `{ src }`
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ };
+
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+
+
+ Player.prototype.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ };
+
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+
+
+ Player.prototype.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ };
+
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+
+
+ Player.prototype.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ };
+
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+
+
+ Player.prototype.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+ return this.techGet_('preload');
+ };
+
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+
+
+ Player.prototype.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay = void 0;
+
+ // if the value is a valid string set it to that
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false;
+
+ // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false;
+
+ // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = techAutoplay || this.options_.autoplay;
+
+ // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ };
+
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+
+
+ Player.prototype.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+ return this.techGet_('playsinline');
+ };
+
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {string}
+ * The current value of loop when getting
+ */
+
+
+ Player.prototype.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+ return this.techGet_('loop');
+ };
+
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+
+
+ Player.prototype.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ }
+
+ // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ }
+
+ // update the internal poster variable
+ this.poster_ = src;
+
+ // update the tech's poster
+ this.techCall_('setPoster', src);
+
+ this.isPosterFromTech_ = false;
+
+ // alert components that the poster has been set
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('posterchange');
+ };
+
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true;
+
+ // Let components know the poster has changed
+ this.trigger('posterchange');
+ }
+ }
+ };
+
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+
+
+ Player.prototype.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsenabled');
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsdisabled');
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ };
+
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+
+
+ Player.prototype.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingcustomcontrols');
+ }
+ };
+
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+
+
+ Player.prototype.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ }
+
+ // restoring to default
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+ return;
+ }
+
+ this.error_ = new MediaError(err);
+
+ // add the vjs-error classname to the player
+ this.addClass('vjs-error');
+
+ // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+ log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);
+
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+ this.trigger('error');
+
+ return;
+ };
+
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+
+
+ Player.prototype.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ };
+
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+
+
+ Player.prototype.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('useractive');
+ return;
+ }
+
+ // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('userinactive');
+ };
+
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+
+
+ Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress = void 0;
+ var lastMoveX = void 0;
+ var lastMoveY = void 0;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(mouseInProgress);
+ // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity();
+ // Stop the interval that maintains activity if the mouse/touch is down
+ this.clearInterval(mouseInProgress);
+ };
+
+ // Any mouse movement will be considered user activity
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+
+ // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity);
+
+ // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+ var inactivityTimeout = void 0;
+
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ }
+
+ // Reset the activity tracker
+ this.userActivity_ = false;
+
+ // If the user state was inactive, set the state to active
+ this.userActive(true);
+
+ // Clear any existing inactivity timeout to start the timer over
+ this.clearTimeout(inactivityTimeout);
+
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ }
+
+ // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ };
+
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+
+
+ Player.prototype.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+
+
+ Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+
+
+ Player.prototype.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ };
+
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+
+
+ Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ };
+
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ };
+
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+
+
+ Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {
+ var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ _ref3$track = _ref3.track,
+ track = _ref3$track === undefined ? arguments[0] : _ref3$track;
+
+ // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+
+
+ Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ };
+
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+
+
+ Player.prototype.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ };
+
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+
+
+ Player.prototype.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ };
+
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+
+
+ Player.prototype.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ };
+
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+
+
+ Player.prototype.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ };
+
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+
+
+ Player.prototype.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // deep merge tracks and null out player so no circular references
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ };
+
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+
+
+ Player.prototype.createModal = function createModal(content, options) {
+ var _this12 = this;
+
+ options = options || {};
+ options.content = content || '';
+
+ var modal = new ModalDialog(this, options);
+
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this12.removeChild(modal);
+ });
+
+ modal.open();
+ return modal;
+ };
+
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ }
+
+ // Check if data-setup attr exists.
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = tuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log$1.error(err);
+ }
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions);
+
+ // Get tag children settings
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i];
+ // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ };
+
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+
+
+ Player.prototype.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document_1.createElement('i');
+
+ // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||
+ // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+ /**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ }
+
+ // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * Global player list
+ *
+ * @type {Object}
+ */
+ Player.players = {};
+
+ var navigator = window_1.navigator;
+
+ /*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+ Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+
+ html5: {},
+ flash: {},
+
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+
+ // locales and their language translations
+ languages: {},
+
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.'
+ };
+
+ [
+ /**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+ 'ended',
+ /**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+ 'seeking',
+ /**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+ 'seekable',
+ /**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+ 'networkState',
+ /**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+ 'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+ });
+
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {
+ return this.trigger(event);
+ };
+ });
+
+ /**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+ /**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+ Component.registerComponent('Player', Player);
+
+ /**
+ * @file plugin.js
+ */
+
+ /**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var BASE_PLUGIN_NAME = 'plugin';
+
+ /**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var PLUGIN_CACHE_KEY = 'activePlugins_';
+
+ /**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+ var pluginStorage = {};
+
+ /**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {boolean}
+ * Whether or not the plugin has been registered.
+ */
+ var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+ };
+
+ /**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or undefined).
+ */
+ var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+ };
+
+ /**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+ var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+ };
+
+ /**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {Boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+ var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+ };
+
+ /**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @returns {Function}
+ * A wrapper function for the given plugin.
+ */
+ var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);
+
+ var instance = plugin.apply(this, arguments);
+
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });
+
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+
+ return basicPluginWrapper;
+ };
+
+ /**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @returns {Function}
+ */
+ var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+
+ return function () {
+ triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();
+
+ // The plugin is replaced by a function that returns the current instance.
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+
+ return instance;
+ };
+ };
+
+ /**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+ var Plugin = function () {
+
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ classCallCheck(this, Plugin);
+
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player;
+
+ // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+ evented(this);
+ delete this.trigger;
+
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name);
+
+ // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+ this.dispose = bind(this, this.dispose);
+
+ // If the player is disposed, dispose the plugin.
+ player.on('dispose', this.dispose);
+ }
+
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ Plugin.prototype.version = function version() {
+ return this.constructor.VERSION;
+ };
+
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @returns {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+
+
+ Plugin.prototype.getEventHash = function getEventHash() {
+ var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ };
+
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @returns {boolean}
+ * Whether or not default was prevented.
+ */
+
+
+ Plugin.prototype.trigger = function trigger$$1(event) {
+ var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ };
+
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+
+
+ Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};
+
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+
+
+ Plugin.prototype.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose);
+
+ // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null;
+
+ // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ };
+
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @returns {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ };
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @returns {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error('Illegal plugin name, "' + name + '", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');
+ }
+
+ if (pluginExists(name)) {
+ log$1.warn('A plugin named "' + name + '" already exists. You may want to avoid re-registering plugins!');
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error('Illegal plugin name, "' + name + '", cannot share a name with an existing player method!');
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error('Illegal plugin for "' + name + '", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');
+ }
+
+ pluginStorage[name] = plugin;
+
+ // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ };
+
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered.
+ */
+
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @returns {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+
+
+ Plugin.getPlugins = function getPlugins() {
+ var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);
+
+ var result = void 0;
+
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+
+ return result;
+ };
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {string}
+ * The plugin's version or an empty string.
+ */
+
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+ }();
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+ Plugin.getPlugin = getPlugin;
+
+ /**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+ Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+
+ Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+ };
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+ };
+
+ /**
+ * @file extend.js
+ * @module extend
+ */
+
+ /**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+ var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+ };
+
+ /**
+ * Function for subclassing using the same inheritance that
+ * videojs uses internally
+ *
+ * @static
+ * @const
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * The class to inherit to
+ *
+ * @return {Object}
+ * The new object with subClassMethods that inherited superClass.
+ */
+ var extendFn = function extendFn(superClass) {
+ var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass);
+
+ // Extend subObj's prototype with functions and other properties from props
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+ };
+
+ /**
+ * @file video.js
+ * @module videojs
+ */
+
+ /**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @returns {string}
+ * The string, without any leading `#`.
+ */
+ var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+ };
+
+ /**
+ * Doubles as the main function for users to create a player instance and also
+ * the main library object.
+ * The `videojs` function can be used to initialize or retrieve a player.
+ *
+ * @param {string|Element} id
+ * Video element or video element ID
+ *
+ * @param {Object} [options]
+ * Optional options object for config/settings
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Optional ready callback
+ *
+ * @return {Player}
+ * A player instance
+ */
+ function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log$1.warn('Player "' + id + '" is already initialised. Options will not be applied.');
+ }
+ if (ready) {
+ player.ready(ready);
+ }
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ }
+
+ if (!document_1.body.contains(el)) {
+ log$1.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log$1.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ });
+
+ // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+ var PlayerComponent = Component.getComponent('Player');
+
+ player = new PlayerComponent(el, options, ready);
+
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+
+ return player;
+ }
+
+ /**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ */
+ videojs$1.hooks_ = {};
+
+ /**
+ * Get a list of hooks for a specific lifecycle
+ * @function videojs.hooks
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+ videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+ return videojs$1.hooks_[type];
+ };
+
+ /**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+ };
+
+ /**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(undefined, arguments);
+ };
+
+ return wrapper;
+ }));
+ };
+
+ /**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+ videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+
+ return true;
+ };
+
+ // Add default styles
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style$1 = $('.vjs-styles-defaults');
+
+ if (!style$1) {
+ style$1 = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style$1, head.firstChild);
+ }
+ setTextContent(style$1, '\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ');
+ }
+ }
+
+ // Run Auto-load players
+ // You have to wait at least once in case this script is loaded after your
+ // video in the DOM (weird behavior only with minified version)
+ autoSetupTimeout(1, videojs$1);
+
+ /**
+ * Current software version. Follows semver.
+ *
+ * @type {string}
+ */
+ videojs$1.VERSION = version;
+
+ /**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+ videojs$1.options = Player.prototype.options_;
+
+ /**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+ videojs$1.getPlayers = function () {
+ return Player.players;
+ };
+
+ /**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @returns {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+ videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag = void 0;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId;
+
+ // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+ };
+
+ /**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+ videojs$1.getAllPlayers = function () {
+ return (
+
+ // Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+ };
+
+ /**
+ * Expose players object.
+ *
+ * @memberOf videojs
+ * @property {Object} players
+ */
+ videojs$1.players = Player.players;
+
+ /**
+ * Get a component class object by name
+ *
+ * @borrows Component.getComponent as videojs.getComponent
+ */
+ videojs$1.getComponent = Component.getComponent;
+
+ /**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+ videojs$1.registerComponent = function (name$$1, comp) {
+ if (Tech.isTech(comp)) {
+ log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');
+ }
+
+ Component.registerComponent.call(Component, name$$1, comp);
+ };
+
+ /**
+ * Get a Tech class object by name
+ *
+ * @borrows Tech.getTech as videojs.getTech
+ */
+ videojs$1.getTech = Tech.getTech;
+
+ /**
+ * Register a Tech so it can referred to by name.
+ * This is used in the tech order for the player.
+ *
+ * @borrows Tech.registerTech as videojs.registerTech
+ */
+ videojs$1.registerTech = Tech.registerTech;
+
+ /**
+ * Register a middleware to a source type.
+ *
+ * @param {String} type A string representing a MIME type.
+ * @param {function(player):object} middleware A middleware factory that takes a player.
+ */
+ videojs$1.use = use;
+
+ /**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @memberOf {videojs}
+ * @property {object} middleware.TERMINATOR
+ */
+ Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+ });
+
+ Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+ });
+
+ /**
+ * A suite of browser and device tests from {@link browser}.
+ *
+ * @type {Object}
+ * @private
+ */
+ videojs$1.browser = browser;
+
+ /**
+ * Whether or not the browser supports touch events. Included for backward
+ * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`
+ * instead going forward.
+ *
+ * @deprecated since version 5.0
+ * @type {boolean}
+ */
+ videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+
+ /**
+ * Subclass an existing class
+ * Mimics ES6 subclassing with the `extend` keyword
+ *
+ * @borrows extend:extendFn as videojs.extend
+ */
+ videojs$1.extend = extendFn;
+
+ /**
+ * Merge two options objects recursively
+ * Performs a deep merge like lodash.merge but **only merges plain objects**
+ * (not arrays, elements, anything else)
+ * Other values will be copied directly from the second object.
+ *
+ * @borrows merge-options:mergeOptions as videojs.mergeOptions
+ */
+ videojs$1.mergeOptions = mergeOptions;
+
+ /**
+ * Change the context (this) of a function
+ *
+ * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native
+ * `function() {}.bind(newContext);` instead of this.
+ *
+ * @borrows fn:bind as videojs.bind
+ */
+ videojs$1.bind = bind;
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @borrows plugin:registerPlugin as videojs.registerPlugin
+ * @method registerPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+ videojs$1.registerPlugin = Plugin.registerPlugin;
+
+ /**
+ * Deregister a Video.js plugin.
+ *
+ * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin
+ * @method deregisterPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered. Must be a string and
+ * must match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ */
+ videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+
+ /**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated
+ * videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+ videojs$1.plugin = function (name$$1, plugin) {
+ log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name$$1, plugin);
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+ videojs$1.getPlugins = Plugin.getPlugins;
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+ videojs$1.getPlugin = Plugin.getPlugin;
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+ videojs$1.getPluginVersion = Plugin.getPluginVersion;
+
+ /**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+ videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+
+ return videojs$1.options.languages[code];
+ };
+
+ /**
+ * Log messages
+ *
+ * @borrows log:log as videojs.log
+ */
+ videojs$1.log = log$1;
+
+ /**
+ * Creates an emulated TimeRange object.
+ *
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRange
+ */
+ /**
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges
+ */
+ videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide
+ *
+ * @borrows format-time:formatTime as videojs.formatTime
+ */
+ videojs$1.formatTime = formatTime;
+
+ /**
+ * Replaces format-time with a custom implementation, to be used in place of the default.
+ *
+ * @borrows format-time:setFormatTime as videojs.setFormatTime
+ *
+ * @method setFormatTime
+ *
+ * @param {Function} customFn
+ * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.
+ * Passed fn should return a string.
+ */
+ videojs$1.setFormatTime = setFormatTime;
+
+ /**
+ * Resets format-time to the default implementation.
+ *
+ * @borrows format-time:resetFormatTime as videojs.resetFormatTime
+ *
+ * @method resetFormatTime
+ */
+ videojs$1.resetFormatTime = resetFormatTime;
+
+ /**
+ * Resolve and parse the elements of a URL
+ *
+ * @borrows url:parseUrl as videojs.parseUrl
+ *
+ */
+ videojs$1.parseUrl = parseUrl;
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @borrows url:isCrossOrigin as videojs.isCrossOrigin
+ */
+ videojs$1.isCrossOrigin = isCrossOrigin;
+
+ /**
+ * Event target class.
+ *
+ * @borrows EventTarget as videojs.EventTarget
+ */
+ videojs$1.EventTarget = EventTarget;
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @borrows events:on as videojs.on
+ */
+ videojs$1.on = on;
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @borrows events:one as videojs.one
+ */
+ videojs$1.one = one;
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @borrows events:off as videojs.off
+ */
+ videojs$1.off = off;
+
+ /**
+ * Trigger an event for an element
+ *
+ * @borrows events:trigger as videojs.trigger
+ */
+ videojs$1.trigger = trigger;
+
+ /**
+ * A cross-browser XMLHttpRequest wrapper. Here's a simple example:
+ *
+ * @param {Object} options
+ * settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+ videojs$1.xhr = xhr;
+
+ /**
+ * TextTrack class
+ *
+ * @borrows TextTrack as videojs.TextTrack
+ */
+ videojs$1.TextTrack = TextTrack;
+
+ /**
+ * export the AudioTrack class so that source handlers can create
+ * AudioTracks and then add them to the players AudioTrackList
+ *
+ * @borrows AudioTrack as videojs.AudioTrack
+ */
+ videojs$1.AudioTrack = AudioTrack;
+
+ /**
+ * export the VideoTrack class so that source handlers can create
+ * VideoTracks and then add them to the players VideoTrackList
+ *
+ * @borrows VideoTrack as videojs.VideoTrack
+ */
+ videojs$1.VideoTrack = VideoTrack;
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @borrows dom:isEl as videojs.isEl
+ * @deprecated Use videojs.dom.isEl() instead
+ */
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @borrows dom:isTextNode as videojs.isTextNode
+ * @deprecated Use videojs.dom.isTextNode() instead
+ */
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @borrows dom:createEl as videojs.createEl
+ * @deprecated Use videojs.dom.createEl() instead
+ */
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @borrows dom:hasElClass as videojs.hasClass
+ * @deprecated Use videojs.dom.hasClass() instead
+ */
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @borrows dom:addElClass as videojs.addClass
+ * @deprecated Use videojs.dom.addClass() instead
+ */
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @borrows dom:removeElClass as videojs.removeClass
+ * @deprecated Use videojs.dom.removeClass() instead
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @borrows dom:toggleElClass as videojs.toggleClass
+ * @deprecated Use videojs.dom.toggleClass() instead
+ */
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @borrows dom:setElAttributes as videojs.setAttribute
+ * @deprecated Use videojs.dom.setAttributes() instead
+ */
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @borrows dom:getElAttributes as videojs.getAttributes
+ * @deprecated Use videojs.dom.getAttributes() instead
+ */
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @borrows dom:emptyEl as videojs.emptyEl
+ * @deprecated Use videojs.dom.emptyEl() instead
+ */
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:appendContents as videojs.appendContet
+ * @deprecated Use videojs.dom.appendContent() instead
+ */
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:insertContent as videojs.insertContent
+ * @deprecated Use videojs.dom.insertContent() instead
+ */
+ ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');
+ return Dom[k].apply(null, arguments);
+ };
+ });
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is because in Firefox, if the player is loaded in an iframe with `display:none`,
+ * then `getComputedStyle` returns `null`, so, we do a null-check to make sure
+ * that the player doesn't break in these cases.
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.
+ *
+ * @borrows computed-style:computedStyle as videojs.computedStyle
+ */
+ videojs$1.computedStyle = computedStyle;
+
+ /**
+ * Export the Dom utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.dom = Dom;
+
+ /**
+ * Export the Url utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.url = Url;
+
+ return videojs$1;
+
+})));
diff --git a/assets/netcut/lib/videojs/alt/video.core.min.js b/assets/netcut/lib/videojs/alt/video.core.min.js
new file mode 100644
index 0000000..6918003
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video.core.min.js
@@ -0,0 +1,12 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.videojs=e()}(this,function(){var p="7.2.4",t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};function e(t,e){return t(e={exports:{}},e.exports),e.exports}var n,d="undefined"!=typeof window?window:"undefined"!=typeof t?t:"undefined"!=typeof self?self:{},r={},i=Object.freeze({default:r}),o=i&&r||i,s="undefined"!=typeof t?t:"undefined"!=typeof window?window:{};"undefined"!=typeof document?n=document:(n=s["__GLOBAL_DOCUMENT_CACHE@4"])||(n=s["__GLOBAL_DOCUMENT_CACHE@4"]=o);var f=n,a=void 0,l="info",c=[],u=function(t,e){var n=a.levels[l],r=new RegExp("^("+n+")$");if("log"!==t&&e.unshift(t.toUpperCase()+":"),c&&c.push([].concat(e)),e.unshift("VIDEOJS:"),d.console){var i=d.console[t];i||"debug"!==t||(i=d.console.info||d.console.log),i&&n&&r.test(t)&&i[Array.isArray(e)?"apply":"call"](d.console,e)}};(a=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];u("log",e)}).levels={all:"debug|log|warn|error",off:"",debug:"debug|log|warn|error",info:"log|warn|error",warn:"warn|error",error:"error",DEFAULT:l},a.level=function(t){if("string"==typeof t){if(!a.levels.hasOwnProperty(t))throw new Error('"'+t+'" in not a valid log level');l=t}return l},a.history=function(){return c?[].concat(c):[]},a.history.clear=function(){c&&(c.length=0)},a.history.disable=function(){null!==c&&(c.length=0,c=null)},a.history.enable=function(){null===c&&(c=[])},a.error=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return u("error",e)},a.warn=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return u("warn",e)},a.debug=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return u("debug",e)};var v=a;var y=function(t){for(var e="",n=0;n<arguments.length;n++)e+=t[n].replace(/\n\r?\s*/g,"")+(arguments[n+1]||"");return e},h="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},g=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},m=function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)},_=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e},b=function(t,e){return t.raw=e,t},T=Object.prototype.toString,C=function(t){return E(t)?Object.keys(t):[]};function k(e,n){C(e).forEach(function(t){return n(e[t],t)})}function w(n){for(var t=arguments.length,e=Array(1<t?t-1:0),r=1;r<t;r++)e[r-1]=arguments[r];return Object.assign?Object.assign.apply(Object,[n].concat(e)):(e.forEach(function(t){t&&k(t,function(t,e){n[e]=t})}),n)}function E(t){return!!t&&"object"===("undefined"==typeof t?"undefined":h(t))}function S(t){return E(t)&&"[object Object]"===T.call(t)&&t.constructor===Object}function x(t,e){if(!t||!e)return"";if("function"==typeof d.getComputedStyle){var n=d.getComputedStyle(t);return n?n[e]:""}return""}var j=b(["Setting attributes in the second argument of createEl()\n has been deprecated. 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e=t.exports={WebVTT:Kn,VTTCue:Zn,VTTRegion:nr};d.vttjs=e,d.WebVTT=e.WebVTT;var n=e.VTTCue,r=e.VTTRegion,i=d.VTTCue,o=d.VTTRegion;e.shim=function(){d.VTTCue=n,d.VTTRegion=r},e.restore=function(){d.VTTCue=i,d.VTTRegion=o},d.VTTCue||e.shim()});rr.WebVTT,rr.VTTCue,rr.VTTRegion;var ir=function(e){function i(){var n=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:function(){};g(this,i),n.reportTouchActivity=!1;var r=_(this,e.call(this,null,n,t));return r.hasStarted_=!1,r.on("playing",function(){this.hasStarted_=!0}),r.on("loadstart",function(){this.hasStarted_=!1}),jn.names.forEach(function(t){var e=jn[t];n&&n[e.getterName]&&(r[e.privateName]=n[e.getterName])}),r.featuresProgressEvents||r.manualProgressOn(),r.featuresTimeupdateEvents||r.manualTimeUpdatesOn(),["Text","Audio","Video"].forEach(function(t){!1===n["native"+t+"Tracks"]&&(r["featuresNative"+t+"Tracks"]=!1)}),!1===n.nativeCaptions||!1===n.nativeTextTracks?r.featuresNativeTextTracks=!1:!0!==n.nativeCaptions&&!0!==n.nativeTextTracks||(r.featuresNativeTextTracks=!0),r.featuresNativeTextTracks||r.emulateTextTracks(),r.autoRemoteTextTracks_=new jn.text.ListClass,r.initTrackListeners(),n.nativeControlsForTouch||r.emitTapEvents(),r.constructor&&(r.name_=r.constructor.name||"Unknown Tech"),r}return m(i,e),i.prototype.triggerSourceset=function(t){var e=this;this.isReady_||this.one("ready",function(){return e.setTimeout(function(){return e.triggerSourceset(t)},1)}),this.trigger({src:t,type:"sourceset"})},i.prototype.manualProgressOn=function(){this.on("durationchange",this.onDurationChange),this.manualProgress=!0,this.one("ready",this.trackProgress)},i.prototype.manualProgressOff=function(){this.manualProgress=!1,this.stopTrackingProgress(),this.off("durationchange",this.onDurationChange)},i.prototype.trackProgress=function(t){this.stopTrackingProgress(),this.progressInterval=this.setInterval(Pt(this,function(){var t=this.bufferedPercent();this.bufferedPercent_!==t&&this.trigger("progress"),1===(this.bufferedPercent_=t)&&this.stopTrackingProgress()}),500)},i.prototype.onDurationChange=function(t){this.duration_=this.duration()},i.prototype.buffered=function(){return Te(0,0)},i.prototype.bufferedPercent=function(){return Ce(this.buffered(),this.duration_)},i.prototype.stopTrackingProgress=function(){this.clearInterval(this.progressInterval)},i.prototype.manualTimeUpdatesOn=function(){this.manualTimeUpdates=!0,this.on("play",this.trackCurrentTime),this.on("pause",this.stopTrackingCurrentTime)},i.prototype.manualTimeUpdatesOff=function(){this.manualTimeUpdates=!1,this.stopTrackingCurrentTime(),this.off("play",this.trackCurrentTime),this.off("pause",this.stopTrackingCurrentTime)},i.prototype.trackCurrentTime=function(){this.currentTimeInterval&&this.stopTrackingCurrentTime(),this.currentTimeInterval=this.setInterval(function(){this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},250)},i.prototype.stopTrackingCurrentTime=function(){this.clearInterval(this.currentTimeInterval),this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},i.prototype.dispose=function(){this.clearTracks(Sn.names),this.manualProgress&&this.manualProgressOff(),this.manualTimeUpdates&&this.manualTimeUpdatesOff(),e.prototype.dispose.call(this)},i.prototype.clearTracks=function(t){var i=this;(t=[].concat(t)).forEach(function(t){for(var e=i[t+"Tracks"]()||[],n=e.length;n--;){var r=e[n];"text"===t&&i.removeRemoteTextTrack(r),e.removeTrack(r)}})},i.prototype.cleanupAutoTextTracks=function(){for(var t=this.autoRemoteTextTracks_||[],e=t.length;e--;){var n=t[e];this.removeRemoteTextTrack(n)}},i.prototype.reset=function(){},i.prototype.error=function(t){return void 0!==t&&(this.error_=new Ae(t),this.trigger("error")),this.error_},i.prototype.played=function(){return this.hasStarted_?Te(0,0):Te()},i.prototype.setCurrentTime=function(){this.manualTimeUpdates&&this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},i.prototype.initTrackListeners=function(){var i=this;Sn.names.forEach(function(t){var e=Sn[t],n=function(){i.trigger(t+"trackchange")},r=i[e.getterName]();r.addEventListener("removetrack",n),r.addEventListener("addtrack",n),i.on("dispose",function(){r.removeEventListener("removetrack",n),r.removeEventListener("addtrack",n)})})},i.prototype.addWebVttScript_=function(){var t=this;if(!d.WebVTT)if(f.body.contains(this.el())){if(!this.options_["vtt.js"]&&S(rr)&&0<Object.keys(rr).length)return void this.trigger("vttjsloaded");var e=f.createElement("script");e.src=this.options_["vtt.js"]||"https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js",e.onload=function(){t.trigger("vttjsloaded")},e.onerror=function(){t.trigger("vttjserror")},this.on("dispose",function(){e.onload=null,e.onerror=null}),d.WebVTT=!0,this.el().parentNode.appendChild(e)}else this.ready(this.addWebVttScript_)},i.prototype.emulateTextTracks=function(){var t=this,n=this.textTracks(),e=this.remoteTextTracks(),r=function(t){return n.addTrack(t.track)},i=function(t){return n.removeTrack(t.track)};e.on("addtrack",r),e.on("removetrack",i),this.addWebVttScript_();var o=function(){return t.trigger("texttrackchange")},s=function(){o();for(var t=0;t<n.length;t++){var e=n[t];e.removeEventListener("cuechange",o),"showing"===e.mode&&e.addEventListener("cuechange",o)}};s(),n.addEventListener("change",s),n.addEventListener("addtrack",s),n.addEventListener("removetrack",s),this.on("dispose",function(){e.off("addtrack",r),e.off("removetrack",i),n.removeEventListener("change",s),n.removeEventListener("addtrack",s),n.removeEventListener("removetrack",s);for(var t=0;t<n.length;t++){n[t].removeEventListener("cuechange",o)}})},i.prototype.addTextTrack=function(t,e,n){if(!t)throw new Error("TextTrack kind is required but was not provided");return function(t,e,n,r){var i=4<arguments.length&&void 0!==arguments[4]?arguments[4]:{},o=t.textTracks();i.kind=e,n&&(i.label=n),r&&(i.language=r),i.tech=t;var s=new jn.text.TrackClass(i);return o.addTrack(s),s}(this,t,e,n)},i.prototype.createRemoteTextTrack=function(t){var e=Kt(t,{tech:this});return new xn.remoteTextEl.TrackClass(e)},i.prototype.addRemoteTextTrack=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},n=arguments[1],r=this.createRemoteTextTrack(e);return!0!==n&&!1!==n&&(v.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js'),n=!0),this.remoteTextTrackEls().addTrackElement_(r),this.remoteTextTracks().addTrack(r.track),!0!==n&&this.ready(function(){return t.autoRemoteTextTracks_.addTrack(r.track)}),r},i.prototype.removeRemoteTextTrack=function(t){var e=this.remoteTextTrackEls().getTrackElementByTrack_(t);this.remoteTextTrackEls().removeTrackElement_(e),this.remoteTextTracks().removeTrack(t),this.autoRemoteTextTracks_.removeTrack(t)},i.prototype.getVideoPlaybackQuality=function(){return{}},i.prototype.setPoster=function(){},i.prototype.playsinline=function(){},i.prototype.setPlaysinline=function(){},i.prototype.overrideNativeAudioTracks=function(){},i.prototype.overrideNativeVideoTracks=function(){},i.prototype.canPlayType=function(){return""},i.canPlayType=function(){return""},i.canPlaySource=function(t,e){return i.canPlayType(t.type)},i.isTech=function(t){return t.prototype instanceof i||t instanceof i||t===i},i.registerTech=function(t,e){if(i.techs_||(i.techs_={}),!i.isTech(e))throw new Error("Tech "+t+" must be a Tech");if(!i.canPlayType)throw new Error("Techs must have a static canPlayType method on them");if(!i.canPlaySource)throw new Error("Techs must have a static canPlaySource method on them");return t=qt(t),i.techs_[t]=e,"Tech"!==t&&i.defaultTechOrder_.push(t),e},i.getTech=function(t){if(t)return t=qt(t),i.techs_&&i.techs_[t]?i.techs_[t]:d&&d.videojs&&d.videojs[t]?(v.warn("The "+t+" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)"),d.videojs[t]):void 0},i}($t);jn.names.forEach(function(t){var e=jn[t];ir.prototype[e.getterName]=function(){return this[e.privateName]=this[e.privateName]||new e.ListClass,this[e.privateName]}}),ir.prototype.featuresVolumeControl=!0,ir.prototype.featuresMuteControl=!0,ir.prototype.featuresFullscreenResize=!1,ir.prototype.featuresPlaybackRate=!1,ir.prototype.featuresProgressEvents=!1,ir.prototype.featuresSourceset=!1,ir.prototype.featuresTimeupdateEvents=!1,ir.prototype.featuresNativeTextTracks=!1,ir.withSourceHandlers=function(i){i.registerSourceHandler=function(t,e){var n=i.sourceHandlers;n||(n=i.sourceHandlers=[]),void 0===e&&(e=n.length),n.splice(e,0,t)},i.canPlayType=function(t){for(var e=i.sourceHandlers||[],n=void 0,r=0;r<e.length;r++)if(n=e[r].canPlayType(t))return n;return""},i.selectSourceHandler=function(t,e){for(var n=i.sourceHandlers||[],r=0;r<n.length;r++)if(n[r].canHandleSource(t,e))return n[r];return null},i.canPlaySource=function(t,e){var n=i.selectSourceHandler(t,e);return n?n.canHandleSource(t,e):""};["seekable","seeking","duration"].forEach(function(t){var e=this[t];"function"==typeof e&&(this[t]=function(){return this.sourceHandler_&&this.sourceHandler_[t]?this.sourceHandler_[t].apply(this.sourceHandler_,arguments):e.apply(this,arguments)})},i.prototype),i.prototype.setSource=function(t){var e=i.selectSourceHandler(t,this.options_);e||(i.nativeSourceHandler?e=i.nativeSourceHandler:v.error("No source handler found for the current source.")),this.disposeSourceHandler(),this.off("dispose",this.disposeSourceHandler),e!==i.nativeSourceHandler&&(this.currentSource_=t),this.sourceHandler_=e.handleSource(t,this,this.options_),this.on("dispose",this.disposeSourceHandler)},i.prototype.disposeSourceHandler=function(){this.currentSource_&&(this.clearTracks(["audio","video"]),this.currentSource_=null),this.cleanupAutoTextTracks(),this.sourceHandler_&&(this.sourceHandler_.dispose&&this.sourceHandler_.dispose(),this.sourceHandler_=null)}},$t.registerComponent("Tech",ir),ir.registerTech("Tech",ir),ir.defaultTechOrder_=[];var or={},sr={},ar={};function lr(t,e,n){t.setTimeout(function(){return function n(){var r=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:[];var i=arguments[2];var o=arguments[3];var s=4<arguments.length&&void 0!==arguments[4]?arguments[4]:[];var a=5<arguments.length&&void 0!==arguments[5]&&arguments[5];var e=t[0],l=t.slice(1);if("string"==typeof e)n(r,or[e],i,o,s,a);else if(e){var c=function(t,e){var n=sr[t.id()],r=null;if(null==n)return r=e(t),sr[t.id()]=[[e,r]],r;for(var i=0;i<n.length;i++){var o=n[i],s=o[0],a=o[1];s===e&&(r=a)}null===r&&(r=e(t),n.push([e,r]));return r}(o,e);if(!c.setSource)return s.push(c),n(r,l,i,o,s,a);c.setSource(w({},r),function(t,e){if(t)return n(r,l,i,o,s,a);s.push(c),n(e,r.type===e.type?l:or[e.type],i,o,s,a)})}else l.length?n(r,l,i,o,s,a):a?i(r,s):n(r,or["*"],i,o,s,!0)}(e,or[e.type],n,t)},1)}function cr(t,e,n){var r=3<arguments.length&&void 0!==arguments[3]?arguments[3]:null,i="call"+qt(n),o=t.reduce(dr(i),r),s=o===ar,a=s?null:e[n](o);return function(t,e,n,r){for(var i=t.length-1;0<=i;i--){var o=t[i];o[e]&&o[e](r,n)}}(t,n,a,s),a}var ur={buffered:1,currentTime:1,duration:1,seekable:1,played:1,paused:1},hr={setCurrentTime:1},pr={play:1,pause:1};function dr(n){return function(t,e){return t===ar?ar:e[n]?e[n](t):t}}var fr={opus:"video/ogg",ogv:"video/ogg",mp4:"video/mp4",mov:"video/mp4",m4v:"video/mp4",mkv:"video/x-matroska",mp3:"audio/mpeg",aac:"audio/aac",oga:"audio/ogg",m3u8:"application/x-mpegURL"},vr=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=en(t);return fr[e.toLowerCase()]||""};function yr(t){var e=vr(t.src);return!t.type&&e&&(t.type=e),t}var gr=function(c){function u(t,e,n){g(this,u);var r=Kt({createEl:!1},e),i=_(this,c.call(this,t,r,n));if(e.playerOptions.sources&&0!==e.playerOptions.sources.length)t.src(e.playerOptions.sources);else for(var o=0,s=e.playerOptions.techOrder;o<s.length;o++){var a=qt(s[o]),l=ir.getTech(a);if(a||(l=$t.getComponent(a)),l&&l.isSupported()){t.loadTech_(a);break}}return i}return m(u,c),u}($t);$t.registerComponent("MediaLoader",gr);var mr=function(i){function r(t,e){g(this,r);var n=_(this,i.call(this,t,e));return n.emitTapEvents(),n.enable(),n}return m(r,i),r.prototype.createEl=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"div",e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=w({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass(),tabIndex:0},e),"button"===t&&v.error("Creating a ClickableComponent with an HTML element of "+t+" is not supported; use a Button instead."),n=w({role:"button"},n),this.tabIndex_=e.tabIndex;var r=i.prototype.createEl.call(this,t,e,n);return this.createControlTextEl(r),r},r.prototype.dispose=function(){this.controlTextEl_=null,i.prototype.dispose.call(this)},r.prototype.createControlTextEl=function(t){return this.controlTextEl_=I("span",{className:"vjs-control-text"},{"aria-live":"polite"}),t&&t.appendChild(this.controlTextEl_),this.controlText(this.controlText_,t),this.controlTextEl_},r.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.el();if(void 0===t)return this.controlText_||"Need Text";var n=this.localize(t);this.controlText_=t,D(this.controlTextEl_,n),this.nonIconControl||e.setAttribute("title",n)},r.prototype.buildCSSClass=function(){return"vjs-control vjs-button "+i.prototype.buildCSSClass.call(this)},r.prototype.enable=function(){this.enabled_||(this.enabled_=!0,this.removeClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","false"),"undefined"!=typeof this.tabIndex_&&this.el_.setAttribute("tabIndex",this.tabIndex_),this.on(["tap","click"],this.handleClick),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur))},r.prototype.disable=function(){this.enabled_=!1,this.addClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","true"),"undefined"!=typeof this.tabIndex_&&this.el_.removeAttribute("tabIndex"),this.off(["tap","click"],this.handleClick),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur)},r.prototype.handleClick=function(t){},r.prototype.handleFocus=function(t){_t(f,"keydown",Pt(this,this.handleKeyPress))},r.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.trigger("click")):i.prototype.handleKeyPress&&i.prototype.handleKeyPress.call(this,t)},r.prototype.handleBlur=function(t){bt(f,"keydown",Pt(this,this.handleKeyPress))},r}($t);$t.registerComponent("ClickableComponent",mr);var _r=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.update(),t.on("posterchange",Pt(n,n.update)),n}return m(i,r),i.prototype.dispose=function(){this.player().off("posterchange",this.update),r.prototype.dispose.call(this)},i.prototype.createEl=function(){return I("div",{className:"vjs-poster",tabIndex:-1})},i.prototype.update=function(t){var e=this.player().poster();this.setSrc(e),e?this.show():this.hide()},i.prototype.setSrc=function(t){var e="";t&&(e='url("'+t+'")'),this.el_.style.backgroundImage=e},i.prototype.handleClick=function(t){this.player_.controls()&&(this.player_.paused()?Ne(this.player_.play()):this.player_.pause())},i}(mr);$t.registerComponent("PosterImage",_r);var br="#222",Tr={monospace:"monospace",sansSerif:"sans-serif",serif:"serif",monospaceSansSerif:'"Andale Mono", "Lucida Console", monospace',monospaceSerif:'"Courier New", monospace',proportionalSansSerif:"sans-serif",proportionalSerif:"serif",casual:'"Comic Sans MS", Impact, fantasy',script:'"Monotype Corsiva", cursive',smallcaps:'"Andale Mono", "Lucida Console", monospace, sans-serif'};function Cr(t,e){var n=void 0;if(4===t.length)n=t[1]+t[1]+t[2]+t[2]+t[3]+t[3];else{if(7!==t.length)throw new Error("Invalid color code provided, "+t+"; must be formatted as e.g. #f0e or #f604e2.");n=t.slice(1)}return"rgba("+parseInt(n.slice(0,2),16)+","+parseInt(n.slice(2,4),16)+","+parseInt(n.slice(4,6),16)+","+e+")"}function kr(t,e,n){try{t.style[e]=n}catch(t){return}}var wr=function(o){function s(n,t,e){g(this,s);var r=_(this,o.call(this,n,t,e)),i=Pt(r,r.updateDisplay);return n.on("loadstart",Pt(r,r.toggleDisplay)),n.on("texttrackchange",i),n.on("loadstart",Pt(r,r.preselectTrack)),n.ready(Pt(r,function(){if(n.tech_&&n.tech_.featuresNativeTextTracks)this.hide();else{n.on("fullscreenchange",i),n.on("playerresize",i),d.addEventListener("orientationchange",i),n.on("dispose",function(){return d.removeEventListener("orientationchange",i)});for(var t=this.options_.playerOptions.tracks||[],e=0;e<t.length;e++)this.player_.addRemoteTextTrack(t[e],!0);this.preselectTrack()}})),r}return m(s,o),s.prototype.preselectTrack=function(){for(var t={captions:1,subtitles:1},e=this.player_.textTracks(),n=this.player_.cache_.selectedLanguage,r=void 0,i=void 0,o=void 0,s=0;s<e.length;s++){var a=e[s];n&&n.enabled&&n.language===a.language?a.kind===n.kind?o=a:o||(o=a):n&&!n.enabled?i=r=o=null:a.default&&("descriptions"!==a.kind||r?a.kind in t&&!i&&(i=a):r=a)}o?o.mode="showing":i?i.mode="showing":r&&(r.mode="showing")},s.prototype.toggleDisplay=function(){this.player_.tech_&&this.player_.tech_.featuresNativeTextTracks?this.hide():this.show()},s.prototype.createEl=function(){return o.prototype.createEl.call(this,"div",{className:"vjs-text-track-display"},{"aria-live":"off","aria-atomic":"true"})},s.prototype.clearDisplay=function(){"function"==typeof d.WebVTT&&d.WebVTT.processCues(d,[],this.el_)},s.prototype.updateDisplay=function(){var t=this.player_.textTracks();this.clearDisplay();for(var e=null,n=null,r=t.length;r--;){var i=t[r];"showing"===i.mode&&("descriptions"===i.kind?e=i:n=i)}n?("off"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","off"),this.updateForTrack(n)):e&&("assertive"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","assertive"),this.updateForTrack(e))},s.prototype.updateForTrack=function(t){if("function"==typeof d.WebVTT&&t.activeCues){for(var e=[],n=0;n<t.activeCues.length;n++)e.push(t.activeCues[n]);if(d.WebVTT.processCues(d,e,this.el_),this.player_.textTrackSettings)for(var r=this.player_.textTrackSettings.getValues(),i=e.length;i--;){var o=e[i];if(o){var s=o.displayState;if(r.color&&(s.firstChild.style.color=r.color),r.textOpacity&&kr(s.firstChild,"color",Cr(r.color||"#fff",r.textOpacity)),r.backgroundColor&&(s.firstChild.style.backgroundColor=r.backgroundColor),r.backgroundOpacity&&kr(s.firstChild,"backgroundColor",Cr(r.backgroundColor||"#000",r.backgroundOpacity)),r.windowColor&&(r.windowOpacity?kr(s,"backgroundColor",Cr(r.windowColor,r.windowOpacity)):s.style.backgroundColor=r.windowColor),r.edgeStyle&&("dropshadow"===r.edgeStyle?s.firstChild.style.textShadow="2px 2px 3px #222, 2px 2px 4px #222, 2px 2px 5px "+br:"raised"===r.edgeStyle?s.firstChild.style.textShadow="1px 1px #222, 2px 2px #222, 3px 3px "+br:"depressed"===r.edgeStyle?s.firstChild.style.textShadow="1px 1px #ccc, 0 1px #ccc, -1px -1px #222, 0 -1px "+br:"uniform"===r.edgeStyle&&(s.firstChild.style.textShadow="0 0 4px #222, 0 0 4px #222, 0 0 4px #222, 0 0 4px "+br)),r.fontPercent&&1!==r.fontPercent){var a=d.parseFloat(s.style.fontSize);s.style.fontSize=a*r.fontPercent+"px",s.style.height="auto",s.style.top="auto",s.style.bottom="2px"}r.fontFamily&&"default"!==r.fontFamily&&("small-caps"===r.fontFamily?s.firstChild.style.fontVariant="small-caps":s.firstChild.style.fontFamily=Tr[r.fontFamily])}}}},s}($t);$t.registerComponent("TextTrackDisplay",wr);var Er=function(i){function t(){return g(this,t),_(this,i.apply(this,arguments))}return m(t,i),t.prototype.createEl=function(){var t=this.player_.isAudio(),e=this.localize(t?"Audio Player":"Video Player"),n=I("span",{className:"vjs-control-text",innerHTML:this.localize("{1} is loading.",[e])}),r=i.prototype.createEl.call(this,"div",{className:"vjs-loading-spinner",dir:"ltr"});return r.appendChild(n),r},t}($t);$t.registerComponent("LoadingSpinner",Er);var Sr=function(e){function t(){return g(this,t),_(this,e.apply(this,arguments))}return m(t,e),t.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=w({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass()},e),n=w({type:"button"},n);var r=$t.prototype.createEl.call(this,"button",e,n);return this.createControlTextEl(r),r},t.prototype.addChild=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=this.constructor.name;return v.warn("Adding an actionable (user controllable) child to a Button ("+n+") is not supported; use a ClickableComponent instead."),$t.prototype.addChild.call(this,t,e)},t.prototype.enable=function(){e.prototype.enable.call(this),this.el_.removeAttribute("disabled")},t.prototype.disable=function(){e.prototype.disable.call(this),this.el_.setAttribute("disabled","disabled")},t.prototype.handleKeyPress=function(t){32!==t.which&&13!==t.which&&e.prototype.handleKeyPress.call(this,t)},t}(mr);$t.registerComponent("Button",Sr);var xr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.mouseused_=!1,n.on("mousedown",n.handleMouseDown),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-big-play-button"},i.prototype.handleClick=function(t){var e=this.player_.play();if(this.mouseused_&&t.clientX&&t.clientY)Ne(e);else{var n=this.player_.getChild("controlBar"),r=n&&n.getChild("playToggle");if(r){var i=function(){return r.focus()};Oe(e)?e.then(i,function(){}):this.setTimeout(i,1)}else this.player_.focus()}},i.prototype.handleKeyPress=function(t){this.mouseused_=!1,r.prototype.handleKeyPress.call(this,t)},i.prototype.handleMouseDown=function(t){this.mouseused_=!0},i}(Sr);xr.prototype.controlText_="Play Video",$t.registerComponent("BigPlayButton",xr);var jr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.controlText(e&&e.controlText||n.localize("Close")),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-close-button "+r.prototype.buildCSSClass.call(this)},i.prototype.handleClick=function(t){this.trigger({type:"close",bubbles:!1})},i}(Sr);$t.registerComponent("CloseButton",jr);var Ar=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"play",n.handlePlay),n.on(t,"pause",n.handlePause),n.on(t,"ended",n.handleEnded),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-play-control "+r.prototype.buildCSSClass.call(this)},i.prototype.handleClick=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},i.prototype.handleSeeked=function(t){this.removeClass("vjs-ended"),this.player_.paused()?this.handlePause(t):this.handlePlay(t)},i.prototype.handlePlay=function(t){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.controlText("Pause")},i.prototype.handlePause=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.controlText("Play")},i.prototype.handleEnded=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-ended"),this.controlText("Replay"),this.one(this.player_,"seeked",this.handleSeeked)},i}(Sr);Ar.prototype.controlText_="Play",$t.registerComponent("PlayToggle",Ar);var Pr=function(t,e){t=t<0?0:t;var n=Math.floor(t%60),r=Math.floor(t/60%60),i=Math.floor(t/3600),o=Math.floor(e/60%60),s=Math.floor(e/3600);return(isNaN(t)||t===1/0)&&(i=r=n="-"),(i=0<i||0<s?i+":":"")+(r=((i||10<=o)&&r<10?"0"+r:r)+":")+(n=n<10?"0"+n:n)},Mr=Pr;function Or(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t;return Mr(t,e)}var Nr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.throttledUpdateContent=Mt(Pt(n,n.updateContent),25),n.on(t,"timeupdate",n.throttledUpdateContent),n}return m(i,r),i.prototype.createEl=function(t){var e=this.buildCSSClass(),n=r.prototype.createEl.call(this,"div",{className:e+" vjs-time-control vjs-control",innerHTML:'<span class="vjs-control-text">'+this.localize(this.labelText_)+" </span>"});return this.contentEl_=I("span",{className:e+"-display"},{"aria-live":"off"}),this.updateTextNode_(),n.appendChild(this.contentEl_),n},i.prototype.dispose=function(){this.contentEl_=null,this.textNode_=null,r.prototype.dispose.call(this)},i.prototype.updateTextNode_=function(){if(this.contentEl_){for(;this.contentEl_.firstChild;)this.contentEl_.removeChild(this.contentEl_.firstChild);this.textNode_=f.createTextNode(this.formattedTime_||this.formatTime_(0)),this.contentEl_.appendChild(this.textNode_)}},i.prototype.formatTime_=function(t){return Or(t)},i.prototype.updateFormattedTime_=function(t){var e=this.formatTime_(t);e!==this.formattedTime_&&(this.formattedTime_=e,this.requestAnimationFrame(this.updateTextNode_))},i.prototype.updateContent=function(t){},i}($t);Nr.prototype.labelText_="Time",Nr.prototype.controlText_="Time",$t.registerComponent("TimeDisplay",Nr);var Lr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"ended",n.handleEnded),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-current-time"},i.prototype.updateContent=function(t){var e=this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime();this.updateFormattedTime_(e)},i.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(this.player_.duration())},i}(Nr);Lr.prototype.labelText_="Current Time",Lr.prototype.controlText_="Current Time",$t.registerComponent("CurrentTimeDisplay",Lr);var Ir=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"durationchange",n.updateContent),n.on(t,"loadedmetadata",n.throttledUpdateContent),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-duration"},i.prototype.updateContent=function(t){var e=this.player_.duration();e&&this.duration_!==e&&(this.duration_=e,this.updateFormattedTime_(e))},i}(Nr);Ir.prototype.labelText_="Duration",Ir.prototype.controlText_="Duration",$t.registerComponent("DurationDisplay",Ir);var Dr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-control vjs-time-divider",innerHTML:"<div><span>/</span></div>"})},e}($t);$t.registerComponent("TimeDivider",Dr);var Rr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"durationchange",n.throttledUpdateContent),n.on(t,"ended",n.handleEnded),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-remaining-time"},i.prototype.formatTime_=function(t){return"-"+r.prototype.formatTime_.call(this,t)},i.prototype.updateContent=function(t){this.player_.duration()&&(this.player_.remainingTimeDisplay?this.updateFormattedTime_(this.player_.remainingTimeDisplay()):this.updateFormattedTime_(this.player_.remainingTime()))},i.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(0)},i}(Nr);Rr.prototype.labelText_="Remaining Time",Rr.prototype.controlText_="Remaining Time",$t.registerComponent("RemainingTimeDisplay",Rr);var Fr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.updateShowing(),n.on(n.player(),"durationchange",n.updateShowing),n}return m(i,r),i.prototype.createEl=function(){var t=r.prototype.createEl.call(this,"div",{className:"vjs-live-control vjs-control"});return this.contentEl_=I("div",{className:"vjs-live-display",innerHTML:'<span class="vjs-control-text">'+this.localize("Stream Type")+" </span>"+this.localize("LIVE")},{"aria-live":"off"}),t.appendChild(this.contentEl_),t},i.prototype.dispose=function(){this.contentEl_=null,r.prototype.dispose.call(this)},i.prototype.updateShowing=function(t){this.player().duration()===1/0?this.show():this.hide()},i}($t);$t.registerComponent("LiveDisplay",Fr);var Br=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.bar=n.getChild(n.options_.barName),n.vertical(!!n.options_.vertical),n.enable(),n}return m(i,r),i.prototype.enabled=function(){return this.enabled_},i.prototype.enable=function(){this.enabled()||(this.on("mousedown",this.handleMouseDown),this.on("touchstart",this.handleMouseDown),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur),this.on("click",this.handleClick),this.on(this.player_,"controlsvisible",this.update),this.playerEvent&&this.on(this.player_,this.playerEvent,this.update),this.removeClass("disabled"),this.setAttribute("tabindex",0),this.enabled_=!0)},i.prototype.disable=function(){if(this.enabled()){var t=this.bar.el_.ownerDocument;this.off("mousedown",this.handleMouseDown),this.off("touchstart",this.handleMouseDown),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur),this.off("click",this.handleClick),this.off(this.player_,"controlsvisible",this.update),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.removeAttribute("tabindex"),this.addClass("disabled"),this.playerEvent&&this.off(this.player_,this.playerEvent,this.update),this.enabled_=!1}},i.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};return e.className=e.className+" vjs-slider",e=w({tabIndex:0},e),n=w({role:"slider","aria-valuenow":0,"aria-valuemin":0,"aria-valuemax":100,tabIndex:0},n),r.prototype.createEl.call(this,t,e,n)},i.prototype.handleMouseDown=function(t){var e=this.bar.el_.ownerDocument;"mousedown"===t.type&&t.preventDefault(),"touchstart"!==t.type||pe||t.preventDefault(),K(),this.addClass("vjs-sliding"),this.trigger("slideractive"),this.on(e,"mousemove",this.handleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchmove",this.handleMouseMove),this.on(e,"touchend",this.handleMouseUp),this.handleMouseMove(t)},i.prototype.handleMouseMove=function(t){},i.prototype.handleMouseUp=function(){var t=this.bar.el_.ownerDocument;$(),this.removeClass("vjs-sliding"),this.trigger("sliderinactive"),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.update()},i.prototype.update=function(){if(this.el_){var t=this.getPercent(),e=this.bar;if(e){("number"!=typeof t||t!=t||t<0||t===1/0)&&(t=0);var n=(100*t).toFixed(2)+"%",r=e.el().style;return this.vertical()?r.height=n:r.width=n,t}}},i.prototype.calculateDistance=function(t){var e=J(this.el_,t);return this.vertical()?e.y:e.x},i.prototype.handleFocus=function(){this.on(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},i.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepBack()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepForward())},i.prototype.handleBlur=function(){this.off(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},i.prototype.handleClick=function(t){t.stopImmediatePropagation(),t.preventDefault()},i.prototype.vertical=function(t){if(void 0===t)return this.vertical_||!1;this.vertical_=!!t,this.vertical_?this.addClass("vjs-slider-vertical"):this.addClass("vjs-slider-horizontal")},i}($t);$t.registerComponent("Slider",Br);var Hr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.partEls_=[],n.on(t,"progress",n.update),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-load-progress",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Loaded")+"</span>: 0%</span>"})},i.prototype.dispose=function(){this.partEls_=null,r.prototype.dispose.call(this)},i.prototype.update=function(t){var e=this.player_.buffered(),n=this.player_.duration(),r=this.player_.bufferedEnd(),i=this.partEls_,o=function(t,e){var n=t/e||0;return 100*(1<=n?1:n)+"%"};this.el_.style.width=o(r,n);for(var s=0;s<e.length;s++){var a=e.start(s),l=e.end(s),c=i[s];c||(c=this.el_.appendChild(I()),i[s]=c),c.style.left=o(a,r),c.style.width=o(l-a,r)}for(var u=i.length;u>e.length;u--)this.el_.removeChild(i[u-1]);i.length=e.length},i}($t);$t.registerComponent("LoadProgressBar",Hr);var Vr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-tooltip"})},e.prototype.update=function(t,e,n){var r=Y(this.el_),i=Y(this.player_.el()),o=t.width*e;if(i&&r){var s=t.left-i.left+o,a=t.width-o+(i.right-t.right),l=r.width/2;s<l?l+=l-s:a<l&&(l=a),l<0?l=0:l>r.width&&(l=r.width),this.el_.style.right="-"+l+"px",D(this.el_,n)}},e}($t);$t.registerComponent("TimeTooltip",Vr);var zr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-play-progress vjs-slider-bar",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Progress")+"</span>: 0%</span>"})},e.prototype.update=function(n,r){var i=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=Or(i.player_.scrubbing()?i.player_.getCache().currentTime:i.player_.currentTime(),i.player_.duration()),e=i.getChild("timeTooltip");e&&e.update(n,r,t)})},e}($t);zr.prototype.options_={children:[]},oe||ae||zr.prototype.options_.children.push("timeTooltip"),$t.registerComponent("PlayProgressBar",zr);var Wr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.update=Mt(Pt(n,n.update),25),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-mouse-display"})},i.prototype.update=function(n,r){var i=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=i.player_.duration(),e=Or(r*t,t);i.el_.style.left=n.width*r+"px",i.getChild("timeTooltip").update(n,r,e)})},i}($t);Wr.prototype.options_={children:["timeTooltip"]},$t.registerComponent("MouseTimeDisplay",Wr);var Ur=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.setEventHandlers_(),n}return m(i,r),i.prototype.setEventHandlers_=function(){var t=this;this.update=Mt(Pt(this,this.update),30),this.on(this.player_,"timeupdate",this.update),this.on(this.player_,"ended",this.handleEnded),this.updateInterval=null,this.on(this.player_,["playing"],function(){t.clearInterval(t.updateInterval),t.updateInterval=t.setInterval(function(){t.requestAnimationFrame(function(){t.update()})},30)}),this.on(this.player_,["ended","pause","waiting"],function(){t.clearInterval(t.updateInterval)}),this.on(this.player_,["timeupdate","ended"],this.update)},i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-progress-holder"},{"aria-label":this.localize("Progress Bar")})},i.prototype.update_=function(t,e){var n=this.player_.duration();this.el_.setAttribute("aria-valuenow",(100*e).toFixed(2)),this.el_.setAttribute("aria-valuetext",this.localize("progress bar timing: currentTime={1} duration={2}",[Or(t,n),Or(n,n)],"{1} of {2}")),this.bar.update(Y(this.el_),e)},i.prototype.update=function(t){var e=r.prototype.update.call(this);return this.update_(this.getCurrentTime_(),e),e},i.prototype.getCurrentTime_=function(){return this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime()},i.prototype.handleEnded=function(t){this.update_(this.player_.duration(),1)},i.prototype.getPercent=function(){var t=this.getCurrentTime_()/this.player_.duration();return 1<=t?1:t||0},i.prototype.handleMouseDown=function(t){rt(t)&&(t.stopPropagation(),this.player_.scrubbing(!0),this.videoWasPlaying=!this.player_.paused(),this.player_.pause(),r.prototype.handleMouseDown.call(this,t))},i.prototype.handleMouseMove=function(t){if(rt(t)){var e=this.calculateDistance(t)*this.player_.duration();e===this.player_.duration()&&(e-=.1),this.player_.currentTime(e)}},i.prototype.enable=function(){r.prototype.enable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.show()},i.prototype.disable=function(){r.prototype.disable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.hide()},i.prototype.handleMouseUp=function(t){r.prototype.handleMouseUp.call(this,t),t&&t.stopPropagation(),this.player_.scrubbing(!1),this.player_.trigger({type:"timeupdate",target:this,manuallyTriggered:!0}),this.videoWasPlaying&&Ne(this.player_.play())},i.prototype.stepForward=function(){this.player_.currentTime(this.player_.currentTime()+5)},i.prototype.stepBack=function(){this.player_.currentTime(this.player_.currentTime()-5)},i.prototype.handleAction=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},i.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.handleAction(t)):r.prototype.handleKeyPress&&r.prototype.handleKeyPress.call(this,t)},i}(Br);Ur.prototype.options_={children:["loadProgressBar","playProgressBar"],barName:"playProgressBar"},oe||ae||Ur.prototype.options_.children.splice(1,0,"mouseTimeDisplay"),Ur.prototype.playerEvent="timeupdate",$t.registerComponent("SeekBar",Ur);var Xr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.handleMouseMove=Mt(Pt(n,n.handleMouseMove),25),n.throttledHandleMouseSeek=Mt(Pt(n,n.handleMouseSeek),25),n.enable(),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-progress-control vjs-control"})},i.prototype.handleMouseMove=function(t){var e=this.getChild("seekBar");if(e){var n=e.getChild("mouseTimeDisplay"),r=e.el(),i=Y(r),o=J(r,t).x;1<o?o=1:o<0&&(o=0),n&&n.update(i,o)}},i.prototype.handleMouseSeek=function(t){var e=this.getChild("seekBar");e&&e.handleMouseMove(t)},i.prototype.enabled=function(){return this.enabled_},i.prototype.disable=function(){this.children().forEach(function(t){return t.disable&&t.disable()}),this.enabled()&&(this.off(["mousedown","touchstart"],this.handleMouseDown),this.off(this.el_,"mousemove",this.handleMouseMove),this.handleMouseUp(),this.addClass("disabled"),this.enabled_=!1)},i.prototype.enable=function(){this.children().forEach(function(t){return t.enable&&t.enable()}),this.enabled()||(this.on(["mousedown","touchstart"],this.handleMouseDown),this.on(this.el_,"mousemove",this.handleMouseMove),this.removeClass("disabled"),this.enabled_=!0)},i.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument,n=this.getChild("seekBar");n&&n.handleMouseDown(t),this.on(e,"mousemove",this.throttledHandleMouseSeek),this.on(e,"touchmove",this.throttledHandleMouseSeek),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},i.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument,n=this.getChild("seekBar");n&&n.handleMouseUp(t),this.off(e,"mousemove",this.throttledHandleMouseSeek),this.off(e,"touchmove",this.throttledHandleMouseSeek),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},i}($t);Xr.prototype.options_={children:["seekBar"]},$t.registerComponent("ProgressControl",Xr);var qr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"fullscreenchange",n.handleFullscreenChange),!1===f[ke.fullscreenEnabled]&&n.disable(),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-fullscreen-control "+r.prototype.buildCSSClass.call(this)},i.prototype.handleFullscreenChange=function(t){this.player_.isFullscreen()?this.controlText("Non-Fullscreen"):this.controlText("Fullscreen")},i.prototype.handleClick=function(t){this.player_.isFullscreen()?this.player_.exitFullscreen():this.player_.requestFullscreen()},i}(Sr);qr.prototype.controlText_="Fullscreen",$t.registerComponent("FullscreenToggle",qr);var Kr=function(t,e){e.tech_&&!e.tech_.featuresVolumeControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresVolumeControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},$r=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-volume-level",innerHTML:'<span class="vjs-control-text"></span>'})},e}($t);$t.registerComponent("VolumeLevel",$r);var Yr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on("slideractive",n.updateLastVolume_),n.on(t,"volumechange",n.updateARIAAttributes),t.ready(function(){return n.updateARIAAttributes()}),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-volume-bar vjs-slider-bar"},{"aria-label":this.localize("Volume Level"),"aria-live":"polite"})},i.prototype.handleMouseDown=function(t){rt(t)&&r.prototype.handleMouseDown.call(this,t)},i.prototype.handleMouseMove=function(t){rt(t)&&(this.checkMuted(),this.player_.volume(this.calculateDistance(t)))},i.prototype.checkMuted=function(){this.player_.muted()&&this.player_.muted(!1)},i.prototype.getPercent=function(){return this.player_.muted()?0:this.player_.volume()},i.prototype.stepForward=function(){this.checkMuted(),this.player_.volume(this.player_.volume()+.1)},i.prototype.stepBack=function(){this.checkMuted(),this.player_.volume(this.player_.volume()-.1)},i.prototype.updateARIAAttributes=function(t){var e=this.player_.muted()?0:this.volumeAsPercentage_();this.el_.setAttribute("aria-valuenow",e),this.el_.setAttribute("aria-valuetext",e+"%")},i.prototype.volumeAsPercentage_=function(){return Math.round(100*this.player_.volume())},i.prototype.updateLastVolume_=function(){var t=this,e=this.player_.volume();this.one("sliderinactive",function(){0===t.player_.volume()&&t.player_.lastVolume_(e)})},i}(Br);Yr.prototype.options_={children:["volumeLevel"],barName:"volumeLevel"},Yr.prototype.playerEvent="volumechange",$t.registerComponent("VolumeBar",Yr);var Gr=function(r){function i(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,i),e.vertical=e.vertical||!1,("undefined"==typeof e.volumeBar||S(e.volumeBar))&&(e.volumeBar=e.volumeBar||{},e.volumeBar.vertical=e.vertical);var n=_(this,r.call(this,t,e));return Kr(n,t),n.throttledHandleMouseMove=Mt(Pt(n,n.handleMouseMove),25),n.on("mousedown",n.handleMouseDown),n.on("touchstart",n.handleMouseDown),n.on(n.volumeBar,["focus","slideractive"],function(){n.volumeBar.addClass("vjs-slider-active"),n.addClass("vjs-slider-active"),n.trigger("slideractive")}),n.on(n.volumeBar,["blur","sliderinactive"],function(){n.volumeBar.removeClass("vjs-slider-active"),n.removeClass("vjs-slider-active"),n.trigger("sliderinactive")}),n}return m(i,r),i.prototype.createEl=function(){var t="vjs-volume-horizontal";return this.options_.vertical&&(t="vjs-volume-vertical"),r.prototype.createEl.call(this,"div",{className:"vjs-volume-control vjs-control "+t})},i.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument;this.on(e,"mousemove",this.throttledHandleMouseMove),this.on(e,"touchmove",this.throttledHandleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},i.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument;this.off(e,"mousemove",this.throttledHandleMouseMove),this.off(e,"touchmove",this.throttledHandleMouseMove),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},i.prototype.handleMouseMove=function(t){this.volumeBar.handleMouseMove(t)},i}($t);Gr.prototype.options_={children:["volumeBar"]},$t.registerComponent("VolumeControl",Gr);var Jr=function(t,e){e.tech_&&!e.tech_.featuresMuteControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresMuteControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},Qr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return Jr(n,t),n.on(t,["loadstart","volumechange"],n.update),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-mute-control "+r.prototype.buildCSSClass.call(this)},i.prototype.handleClick=function(t){var e=this.player_.volume(),n=this.player_.lastVolume_();if(0===e){var r=n<.1?.1:n;this.player_.volume(r),this.player_.muted(!1)}else this.player_.muted(!this.player_.muted())},i.prototype.update=function(t){this.updateIcon_(),this.updateControlText_()},i.prototype.updateIcon_=function(){var t=this.player_.volume(),e=3;oe&&this.player_.muted(this.player_.tech_.el_.muted),0===t||this.player_.muted()?e=0:t<.33?e=1:t<.67&&(e=2);for(var n=0;n<4;n++)H(this.el_,"vjs-vol-"+n);B(this.el_,"vjs-vol-"+e)},i.prototype.updateControlText_=function(){var t=this.player_.muted()||0===this.player_.volume()?"Unmute":"Mute";this.controlText()!==t&&this.controlText(t)},i}(Sr);Qr.prototype.controlText_="Mute",$t.registerComponent("MuteToggle",Qr);var Zr=function(r){function i(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,i),"undefined"!=typeof e.inline?e.inline=e.inline:e.inline=!0,("undefined"==typeof e.volumeControl||S(e.volumeControl))&&(e.volumeControl=e.volumeControl||{},e.volumeControl.vertical=!e.inline);var n=_(this,r.call(this,t,e));return n.on(t,["loadstart"],n.volumePanelState_),n.on(n.volumeControl,["slideractive"],n.sliderActive_),n.on(n.volumeControl,["sliderinactive"],n.sliderInactive_),n}return m(i,r),i.prototype.sliderActive_=function(){this.addClass("vjs-slider-active")},i.prototype.sliderInactive_=function(){this.removeClass("vjs-slider-active")},i.prototype.volumePanelState_=function(){this.volumeControl.hasClass("vjs-hidden")&&this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-hidden"),this.volumeControl.hasClass("vjs-hidden")&&!this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-mute-toggle-only")},i.prototype.createEl=function(){var t="vjs-volume-panel-horizontal";return this.options_.inline||(t="vjs-volume-panel-vertical"),r.prototype.createEl.call(this,"div",{className:"vjs-volume-panel vjs-control "+t})},i}($t);Zr.prototype.options_={children:["muteToggle","volumeControl"]},$t.registerComponent("VolumePanel",Zr);var ti=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return e&&(n.menuButton_=e.menuButton),n.focusedChild_=-1,n.on("keydown",n.handleKeyPress),n}return m(i,r),i.prototype.addItem=function(e){this.addChild(e),e.on("click",Pt(this,function(t){this.menuButton_&&(this.menuButton_.unpressButton(),"CaptionSettingsMenuItem"!==e.name()&&this.menuButton_.focus())}))},i.prototype.createEl=function(){var t=this.options_.contentElType||"ul";this.contentEl_=I(t,{className:"vjs-menu-content"}),this.contentEl_.setAttribute("role","menu");var e=r.prototype.createEl.call(this,"div",{append:this.contentEl_,className:"vjs-menu"});return e.appendChild(this.contentEl_),_t(e,"click",function(t){t.preventDefault(),t.stopImmediatePropagation()}),e},i.prototype.dispose=function(){this.contentEl_=null,r.prototype.dispose.call(this)},i.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepForward()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepBack())},i.prototype.stepForward=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_+1),this.focus(t)},i.prototype.stepBack=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_-1),this.focus(t)},i.prototype.focus=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,e=this.children().slice();e.length&&e[0].className&&/vjs-menu-title/.test(e[0].className)&&e.shift(),0<e.length&&(t<0?t=0:t>=e.length&&(t=e.length-1),e[this.focusedChild_=t].el_.focus())},i}($t);$t.registerComponent("Menu",ti);var ei=function(i){function o(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,o);var n=_(this,i.call(this,t,e));n.menuButton_=new Sr(t,e),n.menuButton_.controlText(n.controlText_),n.menuButton_.el_.setAttribute("aria-haspopup","true");var r=Sr.prototype.buildCSSClass();return n.menuButton_.el_.className=n.buildCSSClass()+" "+r,n.menuButton_.removeClass("vjs-control"),n.addChild(n.menuButton_),n.update(),n.enabled_=!0,n.on(n.menuButton_,"tap",n.handleClick),n.on(n.menuButton_,"click",n.handleClick),n.on(n.menuButton_,"focus",n.handleFocus),n.on(n.menuButton_,"blur",n.handleBlur),n.on("keydown",n.handleSubmenuKeyPress),n}return m(o,i),o.prototype.update=function(){var t=this.createMenu();this.menu&&(this.menu.dispose(),this.removeChild(this.menu)),this.menu=t,this.addChild(t),this.buttonPressed_=!1,this.menuButton_.el_.setAttribute("aria-expanded","false"),this.items&&this.items.length<=this.hideThreshold_?this.hide():this.show()},o.prototype.createMenu=function(){var t=new ti(this.player_,{menuButton:this});if(this.hideThreshold_=0,this.options_.title){var e=I("li",{className:"vjs-menu-title",innerHTML:qt(this.options_.title),tabIndex:-1});this.hideThreshold_+=1,t.children_.unshift(e),R(e,t.contentEl())}if(this.items=this.createItems(),this.items)for(var n=0;n<this.items.length;n++)t.addItem(this.items[n]);return t},o.prototype.createItems=function(){},o.prototype.createEl=function(){return i.prototype.createEl.call(this,"div",{className:this.buildWrapperCSSClass()},{})},o.prototype.buildWrapperCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+Sr.prototype.buildCSSClass()+" "+i.prototype.buildCSSClass.call(this)},o.prototype.buildCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+i.prototype.buildCSSClass.call(this)},o.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.menuButton_.el();return this.menuButton_.controlText(t,e)},o.prototype.handleClick=function(t){this.one(this.menu.contentEl(),"mouseleave",Pt(this,function(t){this.unpressButton(),this.el_.blur()})),this.buttonPressed_?this.unpressButton():this.pressButton()},o.prototype.focus=function(){this.menuButton_.focus()},o.prototype.blur=function(){this.menuButton_.blur()},o.prototype.handleFocus=function(){_t(f,"keydown",Pt(this,this.handleKeyPress))},o.prototype.handleBlur=function(){bt(f,"keydown",Pt(this,this.handleKeyPress))},o.prototype.handleKeyPress=function(t){27===t.which||9===t.which?(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus())):38!==t.which&&40!==t.which||this.buttonPressed_||(this.pressButton(),t.preventDefault())},o.prototype.handleSubmenuKeyPress=function(t){27!==t.which&&9!==t.which||(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus()))},o.prototype.pressButton=function(){if(this.enabled_){if(this.buttonPressed_=!0,this.menu.lockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","true"),oe&&N())return;this.menu.focus()}},o.prototype.unpressButton=function(){this.enabled_&&(this.buttonPressed_=!1,this.menu.unlockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","false"))},o.prototype.disable=function(){this.unpressButton(),this.enabled_=!1,this.addClass("vjs-disabled"),this.menuButton_.disable()},o.prototype.enable=function(){this.enabled_=!0,this.removeClass("vjs-disabled"),this.menuButton_.enable()},o}($t);$t.registerComponent("MenuButton",ei);var ni=function(o){function s(t,e){g(this,s);var n=e.tracks,r=_(this,o.call(this,t,e));if(r.items.length<=1&&r.hide(),!n)return _(r);var i=Pt(r,r.update);return n.addEventListener("removetrack",i),n.addEventListener("addtrack",i),r.player_.on("ready",i),r.player_.on("dispose",function(){n.removeEventListener("removetrack",i),n.removeEventListener("addtrack",i)}),r}return m(s,o),s}(ei);$t.registerComponent("TrackButton",ni);var ri=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.selectable=e.selectable,n.isSelected_=e.selected||!1,n.multiSelectable=e.multiSelectable,n.selected(n.isSelected_),n.selectable?n.multiSelectable?n.el_.setAttribute("role","menuitemcheckbox"):n.el_.setAttribute("role","menuitemradio"):n.el_.setAttribute("role","menuitem"),n}return m(i,r),i.prototype.createEl=function(t,e,n){return this.nonIconControl=!0,r.prototype.createEl.call(this,"li",w({className:"vjs-menu-item",innerHTML:'<span class="vjs-menu-item-text">'+this.localize(this.options_.label)+"</span>",tabIndex:-1},e),n)},i.prototype.handleClick=function(t){this.selected(!0)},i.prototype.selected=function(t){this.selectable&&(t?(this.addClass("vjs-selected"),this.el_.setAttribute("aria-checked","true"),this.controlText(", selected"),this.isSelected_=!0):(this.removeClass("vjs-selected"),this.el_.setAttribute("aria-checked","false"),this.controlText(""),this.isSelected_=!1))},i}(mr);$t.registerComponent("MenuItem",ri);var ii=function(l){function c(t,e){g(this,c);var n=e.track,r=t.textTracks();e.label=n.label||n.language||"Unknown",e.selected="showing"===n.mode;var i=_(this,l.call(this,t,e));i.track=n;var o=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];i.handleTracksChange.apply(i,e)},s=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];i.handleSelectedLanguageChange.apply(i,e)};if(t.on(["loadstart","texttrackchange"],o),r.addEventListener("change",o),r.addEventListener("selectedlanguagechange",s),i.on("dispose",function(){t.off(["loadstart","texttrackchange"],o),r.removeEventListener("change",o),r.removeEventListener("selectedlanguagechange",s)}),void 0===r.onchange){var a=void 0;i.on(["tap","click"],function(){if("object"!==h(d.Event))try{a=new d.Event("change")}catch(t){}a||(a=f.createEvent("Event")).initEvent("change",!0,!0),r.dispatchEvent(a)})}return i.handleTracksChange(),i}return m(c,l),c.prototype.handleClick=function(t){var e=this.track.kind,n=this.track.kinds,r=this.player_.textTracks();if(n||(n=[e]),l.prototype.handleClick.call(this,t),r)for(var i=0;i<r.length;i++){var o=r[i];o===this.track&&-1<n.indexOf(o.kind)?"showing"!==o.mode&&(o.mode="showing"):"disabled"!==o.mode&&(o.mode="disabled")}},c.prototype.handleTracksChange=function(t){var e="showing"===this.track.mode;e!==this.isSelected_&&this.selected(e)},c.prototype.handleSelectedLanguageChange=function(t){if("showing"===this.track.mode){var e=this.player_.cache_.selectedLanguage;if(e&&e.enabled&&e.language===this.track.language&&e.kind!==this.track.kind)return;this.player_.cache_.selectedLanguage={enabled:!0,language:this.track.language,kind:this.track.kind}}},c.prototype.dispose=function(){this.track=null,l.prototype.dispose.call(this)},c}(ri);$t.registerComponent("TextTrackMenuItem",ii);var oi=function(n){function r(t,e){return g(this,r),e.track={player:t,kind:e.kind,kinds:e.kinds,default:!1,mode:"disabled"},e.kinds||(e.kinds=[e.kind]),e.label?e.track.label=e.label:e.track.label=e.kinds.join(" and ")+" off",e.selectable=!0,e.multiSelectable=!1,_(this,n.call(this,t,e))}return m(r,n),r.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),n=!0,r=0,i=e.length;r<i;r++){var o=e[r];if(-1<this.options_.kinds.indexOf(o.kind)&&"showing"===o.mode){n=!1;break}}n!==this.isSelected_&&this.selected(n)},r.prototype.handleSelectedLanguageChange=function(t){for(var e=this.player().textTracks(),n=!0,r=0,i=e.length;r<i;r++){var o=e[r];if(-1<["captions","descriptions","subtitles"].indexOf(o.kind)&&"showing"===o.mode){n=!1;break}}n&&(this.player_.cache_.selectedLanguage={enabled:!1})},r}(ii);$t.registerComponent("OffTextTrackMenuItem",oi);var si=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return g(this,r),e.tracks=t.textTracks(),_(this,n.call(this,t,e))}return m(r,n),r.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[],e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:ii,n=void 0;this.label_&&(n=this.label_+" off"),t.push(new oi(this.player_,{kinds:this.kinds_,kind:this.kind_,label:n})),this.hideThreshold_+=1;var r=this.player_.textTracks();Array.isArray(this.kinds_)||(this.kinds_=[this.kind_]);for(var i=0;i<r.length;i++){var o=r[i];if(-1<this.kinds_.indexOf(o.kind)){var s=new e(this.player_,{track:o,selectable:!0,multiSelectable:!1});s.addClass("vjs-"+o.kind+"-menu-item"),t.push(s)}}return t},r}(ni);$t.registerComponent("TextTrackButton",si);var ai=function(s){function a(t,e){g(this,a);var n=e.track,r=e.cue,i=t.currentTime();e.selectable=!0,e.multiSelectable=!1,e.label=r.text,e.selected=r.startTime<=i&&i<r.endTime;var o=_(this,s.call(this,t,e));return o.track=n,o.cue=r,n.addEventListener("cuechange",Pt(o,o.update)),o}return m(a,s),a.prototype.handleClick=function(t){s.prototype.handleClick.call(this),this.player_.currentTime(this.cue.startTime),this.update(this.cue.startTime)},a.prototype.update=function(t){var e=this.cue,n=this.player_.currentTime();this.selected(e.startTime<=n&&n<e.endTime)},a}(ri);$t.registerComponent("ChaptersTrackMenuItem",ai);var li=function(r){function i(t,e,n){return g(this,i),_(this,r.call(this,t,e,n))}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-chapters-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-chapters-button "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.update=function(t){this.track_&&(!t||"addtrack"!==t.type&&"removetrack"!==t.type)||this.setTrack(this.findChaptersTrack()),r.prototype.update.call(this)},i.prototype.setTrack=function(t){if(this.track_!==t){if(this.updateHandler_||(this.updateHandler_=this.update.bind(this)),this.track_){var e=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);e&&e.removeEventListener("load",this.updateHandler_),this.track_=null}if(this.track_=t,this.track_){this.track_.mode="hidden";var n=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);n&&n.addEventListener("load",this.updateHandler_)}}},i.prototype.findChaptersTrack=function(){for(var t=this.player_.textTracks()||[],e=t.length-1;0<=e;e--){var n=t[e];if(n.kind===this.kind_)return n}},i.prototype.getMenuCaption=function(){return this.track_&&this.track_.label?this.track_.label:this.localize(qt(this.kind_))},i.prototype.createMenu=function(){return this.options_.title=this.getMenuCaption(),r.prototype.createMenu.call(this)},i.prototype.createItems=function(){var t=[];if(!this.track_)return t;var e=this.track_.cues;if(!e)return t;for(var n=0,r=e.length;n<r;n++){var i=e[n],o=new ai(this.player_,{track:this.track_,cue:i});t.push(o)}return t},i}(si);li.prototype.kind_="chapters",li.prototype.controlText_="Chapters",$t.registerComponent("ChaptersButton",li);var ci=function(s){function a(t,e,n){g(this,a);var r=_(this,s.call(this,t,e,n)),i=t.textTracks(),o=Pt(r,r.handleTracksChange);return i.addEventListener("change",o),r.on("dispose",function(){i.removeEventListener("change",o)}),r}return m(a,s),a.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),n=!1,r=0,i=e.length;r<i;r++){var o=e[r];if(o.kind!==this.kind_&&"showing"===o.mode){n=!0;break}}n?this.disable():this.enable()},a.prototype.buildCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildCSSClass.call(this)},a.prototype.buildWrapperCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildWrapperCSSClass.call(this)},a}(si);ci.prototype.kind_="descriptions",ci.prototype.controlText_="Descriptions",$t.registerComponent("DescriptionsButton",ci);var ui=function(r){function i(t,e,n){return g(this,i),_(this,r.call(this,t,e,n))}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-subtitles-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-subtitles-button "+r.prototype.buildWrapperCSSClass.call(this)},i}(si);ui.prototype.kind_="subtitles",ui.prototype.controlText_="Subtitles",$t.registerComponent("SubtitlesButton",ui);var hi=function(r){function i(t,e){g(this,i),e.track={player:t,kind:e.kind,label:e.kind+" settings",selectable:!1,default:!1,mode:"disabled"},e.selectable=!1,e.name="CaptionSettingsMenuItem";var n=_(this,r.call(this,t,e));return n.addClass("vjs-texttrack-settings"),n.controlText(", opens "+e.kind+" settings dialog"),n}return m(i,r),i.prototype.handleClick=function(t){this.player().getChild("textTrackSettings").open()},i}(ii);$t.registerComponent("CaptionSettingsMenuItem",hi);var pi=function(r){function i(t,e,n){return g(this,i),_(this,r.call(this,t,e,n))}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-captions-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-captions-button "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new hi(this.player_,{kind:this.kind_})),this.hideThreshold_+=1),r.prototype.createItems.call(this,t)},i}(si);pi.prototype.kind_="captions",pi.prototype.controlText_="Captions",$t.registerComponent("CaptionsButton",pi);var di=function(i){function t(){return g(this,t),_(this,i.apply(this,arguments))}return m(t,i),t.prototype.createEl=function(t,e,n){var r='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"captions"===this.options_.track.kind&&(r+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Captions")+"</span>\n "),r+="</span>",i.prototype.createEl.call(this,t,w({innerHTML:r},e),n)},t}(ii);$t.registerComponent("SubsCapsMenuItem",di);var fi=function(r){function i(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,i);var n=_(this,r.call(this,t,e));return n.label_="subtitles",-1<["en","en-us","en-ca","fr-ca"].indexOf(n.player_.language_)&&(n.label_="captions"),n.menuButton_.controlText(qt(n.label_)),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-subs-caps-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-subs-caps-button "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new hi(this.player_,{kind:this.label_})),this.hideThreshold_+=1),t=r.prototype.createItems.call(this,t,di)},i}(si);fi.prototype.kinds_=["captions","subtitles"],fi.prototype.controlText_="Subtitles",$t.registerComponent("SubsCapsButton",fi);var vi=function(s){function a(t,e){g(this,a);var n=e.track,r=t.audioTracks();e.label=n.label||n.language||"Unknown",e.selected=n.enabled;var i=_(this,s.call(this,t,e));i.track=n,i.addClass("vjs-"+n.kind+"-menu-item");var o=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];i.handleTracksChange.apply(i,e)};return r.addEventListener("change",o),i.on("dispose",function(){r.removeEventListener("change",o)}),i}return m(a,s),a.prototype.createEl=function(t,e,n){var r='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"main-desc"===this.options_.track.kind&&(r+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Descriptions")+"</span>\n "),r+="</span>",s.prototype.createEl.call(this,t,w({innerHTML:r},e),n)},a.prototype.handleClick=function(t){var e=this.player_.audioTracks();s.prototype.handleClick.call(this,t);for(var n=0;n<e.length;n++){var r=e[n];r.enabled=r===this.track}},a.prototype.handleTracksChange=function(t){this.selected(this.track.enabled)},a}(ri);$t.registerComponent("AudioTrackMenuItem",vi);var yi=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return g(this,r),e.tracks=t.audioTracks(),_(this,n.call(this,t,e))}return m(r,n),r.prototype.buildCSSClass=function(){return"vjs-audio-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-audio-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[];this.hideThreshold_=1;for(var e=this.player_.audioTracks(),n=0;n<e.length;n++){var r=e[n];t.push(new vi(this.player_,{track:r,selectable:!0,multiSelectable:!1}))}return t},r}(ni);yi.prototype.controlText_="Audio Track",$t.registerComponent("AudioTrackButton",yi);var gi=function(o){function s(t,e){g(this,s);var n=e.rate,r=parseFloat(n,10);e.label=n,e.selected=1===r,e.selectable=!0,e.multiSelectable=!1;var i=_(this,o.call(this,t,e));return i.label=n,i.rate=r,i.on(t,"ratechange",i.update),i}return m(s,o),s.prototype.handleClick=function(t){o.prototype.handleClick.call(this),this.player().playbackRate(this.rate)},s.prototype.update=function(t){this.selected(this.player().playbackRate()===this.rate)},s}(ri);gi.prototype.contentElType="button",$t.registerComponent("PlaybackRateMenuItem",gi);var mi=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.updateVisibility(),n.updateLabel(),n.on(t,"loadstart",n.updateVisibility),n.on(t,"ratechange",n.updateLabel),n}return m(i,r),i.prototype.createEl=function(){var t=r.prototype.createEl.call(this);return this.labelEl_=I("div",{className:"vjs-playback-rate-value",innerHTML:"1x"}),t.appendChild(this.labelEl_),t},i.prototype.dispose=function(){this.labelEl_=null,r.prototype.dispose.call(this)},i.prototype.buildCSSClass=function(){return"vjs-playback-rate "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-playback-rate "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.createMenu=function(){var t=new ti(this.player()),e=this.playbackRates();if(e)for(var n=e.length-1;0<=n;n--)t.addChild(new gi(this.player(),{rate:e[n]+"x"}));return t},i.prototype.updateARIAAttributes=function(){this.el().setAttribute("aria-valuenow",this.player().playbackRate())},i.prototype.handleClick=function(t){for(var e=this.player().playbackRate(),n=this.playbackRates(),r=n[0],i=0;i<n.length;i++)if(n[i]>e){r=n[i];break}this.player().playbackRate(r)},i.prototype.playbackRates=function(){return this.options_.playbackRates||this.options_.playerOptions&&this.options_.playerOptions.playbackRates},i.prototype.playbackRateSupported=function(){return this.player().tech_&&this.player().tech_.featuresPlaybackRate&&this.playbackRates()&&0<this.playbackRates().length},i.prototype.updateVisibility=function(t){this.playbackRateSupported()?this.removeClass("vjs-hidden"):this.addClass("vjs-hidden")},i.prototype.updateLabel=function(t){this.playbackRateSupported()&&(this.labelEl_.innerHTML=this.player().playbackRate()+"x")},i}(ei);mi.prototype.controlText_="Playback Rate",$t.registerComponent("PlaybackRateMenuButton",mi);var _i=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.buildCSSClass=function(){return"vjs-spacer "+t.prototype.buildCSSClass.call(this)},e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:this.buildCSSClass()})},e}($t);$t.registerComponent("Spacer",_i);var bi=function(e){function t(){return g(this,t),_(this,e.apply(this,arguments))}return m(t,e),t.prototype.buildCSSClass=function(){return"vjs-custom-control-spacer "+e.prototype.buildCSSClass.call(this)},t.prototype.createEl=function(){var t=e.prototype.createEl.call(this,{className:this.buildCSSClass()});return t.innerHTML=" ",t},t}(_i);$t.registerComponent("CustomControlSpacer",bi);var Ti=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-control-bar",dir:"ltr"})},e}($t);Ti.prototype.options_={children:["playToggle","volumePanel","currentTimeDisplay","timeDivider","durationDisplay","progressControl","liveDisplay","remainingTimeDisplay","customControlSpacer","playbackRateMenuButton","chaptersButton","descriptionsButton","subsCapsButton","audioTrackButton","fullscreenToggle"]},$t.registerComponent("ControlBar",Ti);var Ci=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"error",n.open),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-error-display "+r.prototype.buildCSSClass.call(this)},i.prototype.content=function(){var t=this.player().error();return t?this.localize(t.message):""},i}(Fe);Ci.prototype.options_=Kt(Fe.prototype.options_,{pauseOnOpen:!1,fillAlways:!0,temporary:!1,uncloseable:!0}),$t.registerComponent("ErrorDisplay",Ci);var ki="vjs-text-track-settings",wi=["#000","Black"],Ei=["#00F","Blue"],Si=["#0FF","Cyan"],xi=["#0F0","Green"],ji=["#F0F","Magenta"],Ai=["#F00","Red"],Pi=["#FFF","White"],Mi=["#FF0","Yellow"],Oi=["1","Opaque"],Ni=["0.5","Semi-Transparent"],Li=["0","Transparent"],Ii={backgroundColor:{selector:".vjs-bg-color > select",id:"captions-background-color-%s",label:"Color",options:[wi,Pi,Ai,xi,Ei,Mi,ji,Si]},backgroundOpacity:{selector:".vjs-bg-opacity > select",id:"captions-background-opacity-%s",label:"Transparency",options:[Oi,Ni,Li]},color:{selector:".vjs-fg-color > select",id:"captions-foreground-color-%s",label:"Color",options:[Pi,wi,Ai,xi,Ei,Mi,ji,Si]},edgeStyle:{selector:".vjs-edge-style > select",id:"%s",label:"Text Edge Style",options:[["none","None"],["raised","Raised"],["depressed","Depressed"],["uniform","Uniform"],["dropshadow","Dropshadow"]]},fontFamily:{selector:".vjs-font-family > select",id:"captions-font-family-%s",label:"Font Family",options:[["proportionalSansSerif","Proportional Sans-Serif"],["monospaceSansSerif","Monospace Sans-Serif"],["proportionalSerif","Proportional Serif"],["monospaceSerif","Monospace Serif"],["casual","Casual"],["script","Script"],["small-caps","Small Caps"]]},fontPercent:{selector:".vjs-font-percent > select",id:"captions-font-size-%s",label:"Font Size",options:[["0.50","50%"],["0.75","75%"],["1.00","100%"],["1.25","125%"],["1.50","150%"],["1.75","175%"],["2.00","200%"],["3.00","300%"],["4.00","400%"]],default:2,parser:function(t){return"1.00"===t?null:Number(t)}},textOpacity:{selector:".vjs-text-opacity > select",id:"captions-foreground-opacity-%s",label:"Transparency",options:[Oi,Ni]},windowColor:{selector:".vjs-window-color > select",id:"captions-window-color-%s",label:"Color"},windowOpacity:{selector:".vjs-window-opacity > select",id:"captions-window-opacity-%s",label:"Transparency",options:[Li,Ni,Oi]}};function Di(t,e){if(e&&(t=e(t)),t&&"none"!==t)return t}Ii.windowColor.options=Ii.backgroundColor.options;var Ri=function(r){function i(t,e){g(this,i),e.temporary=!1;var n=_(this,r.call(this,t,e));return n.updateDisplay=Pt(n,n.updateDisplay),n.fill(),n.hasBeenOpened_=n.hasBeenFilled_=!0,n.endDialog=I("p",{className:"vjs-control-text",textContent:n.localize("End of dialog window.")}),n.el().appendChild(n.endDialog),n.setDefaults(),void 0===e.persistTextTrackSettings&&(n.options_.persistTextTrackSettings=n.options_.playerOptions.persistTextTrackSettings),n.on(n.$(".vjs-done-button"),"click",function(){n.saveSettings(),n.close()}),n.on(n.$(".vjs-default-button"),"click",function(){n.setDefaults(),n.updateDisplay()}),k(Ii,function(t){n.on(n.$(t.selector),"change",n.updateDisplay)}),n.options_.persistTextTrackSettings&&n.restoreSettings(),n}return m(i,r),i.prototype.dispose=function(){this.endDialog=null,r.prototype.dispose.call(this)},i.prototype.createElSelect_=function(t){var n=this,e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"",r=2<arguments.length&&void 0!==arguments[2]?arguments[2]:"label",i=Ii[t],o=i.id.replace("%s",this.id_),s=[e,o].join(" ").trim();return["<"+r+' id="'+o+'" class="'+("label"===r?"vjs-label":"")+'">',this.localize(i.label),"</"+r+">",'<select aria-labelledby="'+s+'">'].concat(i.options.map(function(t){var e=o+"-"+t[1].replace(/\W+/g,"");return['<option id="'+e+'" value="'+t[0]+'" ','aria-labelledby="'+s+" "+e+'">',n.localize(t[1]),"</option>"].join("")})).concat("</select>").join("")},i.prototype.createElFgColor_=function(){var t="captions-text-legend-"+this.id_;return['<fieldset class="vjs-fg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Text"),"</legend>",this.createElSelect_("color",t),'<span class="vjs-text-opacity vjs-opacity">',this.createElSelect_("textOpacity",t),"</span>","</fieldset>"].join("")},i.prototype.createElBgColor_=function(){var t="captions-background-"+this.id_;return['<fieldset class="vjs-bg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Background"),"</legend>",this.createElSelect_("backgroundColor",t),'<span class="vjs-bg-opacity vjs-opacity">',this.createElSelect_("backgroundOpacity",t),"</span>","</fieldset>"].join("")},i.prototype.createElWinColor_=function(){var t="captions-window-"+this.id_;return['<fieldset class="vjs-window-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Window"),"</legend>",this.createElSelect_("windowColor",t),'<span class="vjs-window-opacity vjs-opacity">',this.createElSelect_("windowOpacity",t),"</span>","</fieldset>"].join("")},i.prototype.createElColors_=function(){return I("div",{className:"vjs-track-settings-colors",innerHTML:[this.createElFgColor_(),this.createElBgColor_(),this.createElWinColor_()].join("")})},i.prototype.createElFont_=function(){return I("div",{className:"vjs-track-settings-font",innerHTML:['<fieldset class="vjs-font-percent vjs-track-setting">',this.createElSelect_("fontPercent","","legend"),"</fieldset>",'<fieldset class="vjs-edge-style vjs-track-setting">',this.createElSelect_("edgeStyle","","legend"),"</fieldset>",'<fieldset class="vjs-font-family vjs-track-setting">',this.createElSelect_("fontFamily","","legend"),"</fieldset>"].join("")})},i.prototype.createElControls_=function(){var t=this.localize("restore all settings to the default values");return I("div",{className:"vjs-track-settings-controls",innerHTML:['<button class="vjs-default-button" title="'+t+'">',this.localize("Reset"),'<span class="vjs-control-text"> '+t+"</span>","</button>",'<button class="vjs-done-button">'+this.localize("Done")+"</button>"].join("")})},i.prototype.content=function(){return[this.createElColors_(),this.createElFont_(),this.createElControls_()]},i.prototype.label=function(){return this.localize("Caption Settings Dialog")},i.prototype.description=function(){return this.localize("Beginning of dialog window. Escape will cancel and close the window.")},i.prototype.buildCSSClass=function(){return r.prototype.buildCSSClass.call(this)+" vjs-text-track-settings"},i.prototype.getValues=function(){var s=this;return function(n,r){var t=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0;return C(n).reduce(function(t,e){return r(t,n[e],e)},t)}(Ii,function(t,e,n){var r,i,o=(r=s.$(e.selector),i=e.parser,Di(r.options[r.options.selectedIndex].value,i));return void 0!==o&&(t[n]=o),t},{})},i.prototype.setValues=function(n){var r=this;k(Ii,function(t,e){!function(t,e,n){if(e)for(var r=0;r<t.options.length;r++)if(Di(t.options[r].value,n)===e){t.selectedIndex=r;break}}(r.$(t.selector),n[e],t.parser)})},i.prototype.setDefaults=function(){var n=this;k(Ii,function(t){var e=t.hasOwnProperty("default")?t.default:0;n.$(t.selector).selectedIndex=e})},i.prototype.restoreSettings=function(){var t=void 0;try{t=JSON.parse(d.localStorage.getItem(ki))}catch(t){v.warn(t)}t&&this.setValues(t)},i.prototype.saveSettings=function(){if(this.options_.persistTextTrackSettings){var t=this.getValues();try{Object.keys(t).length?d.localStorage.setItem(ki,JSON.stringify(t)):d.localStorage.removeItem(ki)}catch(t){v.warn(t)}}},i.prototype.updateDisplay=function(){var t=this.player_.getChild("textTrackDisplay");t&&t.updateDisplay()},i.prototype.conditionalBlur_=function(){this.previouslyActiveEl_=null,this.off(f,"keydown",this.handleKeyDown);var t=this.player_.controlBar,e=t&&t.subsCapsButton,n=t&&t.captionsButton;e?e.focus():n&&n.focus()},i}(Fe);$t.registerComponent("TextTrackSettings",Ri);var Fi=function(o){function s(t,e){g(this,s);var n=e.ResizeObserver||d.ResizeObserver;null===e.ResizeObserver&&(n=!1);var r=Kt({createEl:!n,reportTouchActivity:!1},e),i=_(this,o.call(this,t,r));return i.ResizeObserver=e.ResizeObserver||d.ResizeObserver,i.loadListener_=null,i.resizeObserver_=null,i.debouncedHandler_=Ot(function(){i.resizeHandler()},100,!1,i),n?(i.resizeObserver_=new i.ResizeObserver(i.debouncedHandler_),i.resizeObserver_.observe(t.el())):(i.loadListener_=function(){i.el_&&i.el_.contentWindow&&_t(i.el_.contentWindow,"resize",i.debouncedHandler_)},i.one("load",i.loadListener_)),i}return m(s,o),s.prototype.createEl=function(){return o.prototype.createEl.call(this,"iframe",{className:"vjs-resize-manager"})},s.prototype.resizeHandler=function(){this.player_&&this.player_.trigger&&this.player_.trigger("playerresize")},s.prototype.dispose=function(){this.debouncedHandler_&&this.debouncedHandler_.cancel(),this.resizeObserver_&&(this.player_.el()&&this.resizeObserver_.unobserve(this.player_.el()),this.resizeObserver_.disconnect()),this.el_&&this.el_.contentWindow&&bt(this.el_.contentWindow,"resize",this.debouncedHandler_),this.loadListener_&&this.off("load",this.loadListener_),this.ResizeObserver=null,this.resizeObserver=null,this.debouncedHandler_=null,this.loadListener_=null},s}($t);$t.registerComponent("ResizeManager",Fi);var Bi=function(t){var e=t.el();if(e.hasAttribute("src"))return t.triggerSourceset(e.src),!0;var n=t.$$("source"),r=[],i="";if(!n.length)return!1;for(var o=0;o<n.length;o++){var s=n[o].src;s&&-1===r.indexOf(s)&&r.push(s)}return!!r.length&&(1===r.length&&(i=r[0]),t.triggerSourceset(i),!0)},Hi=Object.defineProperty({},"innerHTML",{get:function(){return this.cloneNode(!0).innerHTML},set:function(t){var e=f.createElement(this.nodeName.toLowerCase());e.innerHTML=t;for(var n=f.createDocumentFragment();e.childNodes.length;)n.appendChild(e.childNodes[0]);return this.innerText="",d.Element.prototype.appendChild.call(this,n),this.innerHTML}}),Vi=function(t,e){for(var n={},r=0;r<t.length&&!((n=Object.getOwnPropertyDescriptor(t[r],e))&&n.set&&n.get);r++);return n.enumerable=!0,n.configurable=!0,n},zi=function(o){var s=o.el();if(!s.resetSourceWatch_){var e={},t=Vi([o.el(),d.HTMLMediaElement.prototype,d.Element.prototype,Hi],"innerHTML"),n=function(i){return function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];var r=i.apply(s,e);return Bi(o),r}};["append","appendChild","insertAdjacentHTML"].forEach(function(t){s[t]&&(e[t]=s[t],s[t]=n(e[t]))}),Object.defineProperty(s,"innerHTML",Kt(t,{set:n(t.set)})),s.resetSourceWatch_=function(){s.resetSourceWatch_=null,Object.keys(e).forEach(function(t){s[t]=e[t]}),Object.defineProperty(s,"innerHTML",t)},o.one("sourceset",s.resetSourceWatch_)}},Wi=Object.defineProperty({},"src",{get:function(){return this.hasAttribute("src")?tn(d.Element.prototype.getAttribute.call(this,"src")):""},set:function(t){return d.Element.prototype.setAttribute.call(this,"src",t),t}}),Ui=function(r){if(r.featuresSourceset){var i=r.el();if(!i.resetSourceset_){var n=Vi([r.el(),d.HTMLMediaElement.prototype,Wi],"src"),o=i.setAttribute,e=i.load;Object.defineProperty(i,"src",Kt(n,{set:function(t){var e=n.set.call(i,t);return r.triggerSourceset(i.src),e}})),i.setAttribute=function(t,e){var n=o.call(i,t,e);return/src/i.test(t)&&r.triggerSourceset(i.src),n},i.load=function(){var t=e.call(i);return Bi(r)||(r.triggerSourceset(""),zi(r)),t},i.currentSrc?r.triggerSourceset(i.currentSrc):Bi(r)||zi(r),i.resetSourceset_=function(){i.resetSourceset_=null,i.load=e,i.setAttribute=o,Object.defineProperty(i,"src",n),i.resetSourceWatch_&&i.resetSourceWatch_()}}}},Xi=b(["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."],["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."]),qi=function(u){function h(t,e){g(this,h);var n=_(this,u.call(this,t,e)),r=t.source,i=!1;if(r&&(n.el_.currentSrc!==r.src||t.tag&&3===t.tag.initNetworkState_)?n.setSource(r):n.handleLateInit_(n.el_),t.enableSourceset&&n.setupSourcesetHandling_(),n.el_.hasChildNodes()){for(var o=n.el_.childNodes,s=o.length,a=[];s--;){var l=o[s];"track"===l.nodeName.toLowerCase()&&(n.featuresNativeTextTracks?(n.remoteTextTrackEls().addTrackElement_(l),n.remoteTextTracks().addTrack(l.track),n.textTracks().addTrack(l.track),i||n.el_.hasAttribute("crossorigin")||!nn(l.src)||(i=!0)):a.push(l))}for(var c=0;c<a.length;c++)n.el_.removeChild(a[c])}return n.proxyNativeTracks_(),n.featuresNativeTextTracks&&i&&v.warn(y(Xi)),n.restoreMetadataTracksInIOSNativePlayer_(),(ge||re||ce)&&!0===t.nativeControlsForTouch&&n.setControls(!0),n.proxyWebkitFullscreen_(),n.triggerReady(),n}return m(h,u),h.prototype.dispose=function(){this.el_&&this.el_.resetSourceset_&&this.el_.resetSourceset_(),h.disposeMediaElement(this.el_),this.options_=null,u.prototype.dispose.call(this)},h.prototype.setupSourcesetHandling_=function(){Ui(this)},h.prototype.restoreMetadataTracksInIOSNativePlayer_=function(){var r=this.textTracks(),i=void 0,t=function(){i=[];for(var t=0;t<r.length;t++){var e=r[t];"metadata"===e.kind&&i.push({track:e,storedMode:e.mode})}};t(),r.addEventListener("change",t),this.on("dispose",function(){return r.removeEventListener("change",t)});var e=function t(){for(var e=0;e<i.length;e++){var n=i[e];"disabled"===n.track.mode&&n.track.mode!==n.storedMode&&(n.track.mode=n.storedMode)}r.removeEventListener("change",t)};this.on("webkitbeginfullscreen",function(){r.removeEventListener("change",t),r.removeEventListener("change",e),r.addEventListener("change",e)}),this.on("webkitendfullscreen",function(){r.removeEventListener("change",t),r.addEventListener("change",t),r.removeEventListener("change",e)})},h.prototype.overrideNative_=function(t,e){var n=this;if(e===this["featuresNative"+t+"Tracks"]){var r=t.toLowerCase();this[r+"TracksListeners_"]&&Object.keys(this[r+"TracksListeners_"]).forEach(function(t){n.el()[r+"Tracks"].removeEventListener(t,n[r+"TracksListeners_"][t])}),this["featuresNative"+t+"Tracks"]=!e,this[r+"TracksListeners_"]=null,this.proxyNativeTracksForType_(r)}},h.prototype.overrideNativeAudioTracks=function(t){this.overrideNative_("Audio",t)},h.prototype.overrideNativeVideoTracks=function(t){this.overrideNative_("Video",t)},h.prototype.proxyNativeTracksForType_=function(t){var r=this,e=Sn[t],i=this.el()[e.getterName],o=this[e.getterName]();if(this["featuresNative"+e.capitalName+"Tracks"]&&i&&i.addEventListener){var s={change:function(t){o.trigger({type:"change",target:o,currentTarget:o,srcElement:o})},addtrack:function(t){o.addTrack(t.track)},removetrack:function(t){o.removeTrack(t.track)}},n=function(){for(var t=[],e=0;e<o.length;e++){for(var n=!1,r=0;r<i.length;r++)if(i[r]===o[e]){n=!0;break}n||t.push(o[e])}for(;t.length;)o.removeTrack(t.shift())};this[e.getterName+"Listeners_"]=s,Object.keys(s).forEach(function(e){var n=s[e];i.addEventListener(e,n),r.on("dispose",function(t){return i.removeEventListener(e,n)})}),this.on("loadstart",n),this.on("dispose",function(t){return r.off("loadstart",n)})}},h.prototype.proxyNativeTracks_=function(){var e=this;Sn.names.forEach(function(t){e.proxyNativeTracksForType_(t)})},h.prototype.createEl=function(){var t=this.options_.tag;if(!t||!this.options_.playerElIngest&&!this.movingMediaElementInDOM){if(t){var e=t.cloneNode(!0);t.parentNode&&t.parentNode.insertBefore(e,t),h.disposeMediaElement(t),t=e}else{t=f.createElement("video");var n=Kt({},this.options_.tag&&W(this.options_.tag));ge&&!0===this.options_.nativeControlsForTouch||delete n.controls,z(t,w(n,{id:this.options_.techId,class:"vjs-tech"}))}t.playerId=this.options_.playerId}"undefined"!=typeof this.options_.preload&&X(t,"preload",this.options_.preload);for(var r=["loop","muted","playsinline","autoplay"],i=0;i<r.length;i++){var o=r[i],s=this.options_[o];"undefined"!=typeof s&&(s?X(t,o,o):q(t,o),t[o]=s)}return t},h.prototype.handleLateInit_=function(t){if(0!==t.networkState&&3!==t.networkState){if(0===t.readyState){var e=!1,n=function(){e=!0};this.on("loadstart",n);var r=function(){e||this.trigger("loadstart")};return this.on("loadedmetadata",r),void this.ready(function(){this.off("loadstart",n),this.off("loadedmetadata",r),e||this.trigger("loadstart")})}var i=["loadstart"];i.push("loadedmetadata"),2<=t.readyState&&i.push("loadeddata"),3<=t.readyState&&i.push("canplay"),4<=t.readyState&&i.push("canplaythrough"),this.ready(function(){i.forEach(function(t){this.trigger(t)},this)})}},h.prototype.setCurrentTime=function(t){try{this.el_.currentTime=t}catch(t){v(t,"Video is not ready. (Video.js)")}},h.prototype.duration=function(){var e=this;if(this.el_.duration===1/0&&ae&&pe&&0===this.el_.currentTime){return this.on("timeupdate",function t(){0<e.el_.currentTime&&(e.el_.duration===1/0&&e.trigger("durationchange"),e.off("timeupdate",t))}),NaN}return this.el_.duration||NaN},h.prototype.width=function(){return this.el_.offsetWidth},h.prototype.height=function(){return this.el_.offsetHeight},h.prototype.proxyWebkitFullscreen_=function(){var t=this;if("webkitDisplayingFullscreen"in this.el_){var e=function(){this.trigger("fullscreenchange",{isFullscreen:!1})},n=function(){"webkitPresentationMode"in this.el_&&"picture-in-picture"!==this.el_.webkitPresentationMode&&(this.one("webkitendfullscreen",e),this.trigger("fullscreenchange",{isFullscreen:!0}))};this.on("webkitbeginfullscreen",n),this.on("dispose",function(){t.off("webkitbeginfullscreen",n),t.off("webkitendfullscreen",e)})}},h.prototype.supportsFullScreen=function(){if("function"==typeof this.el_.webkitEnterFullScreen){var t=d.navigator&&d.navigator.userAgent||"";if(/Android/.test(t)||!/Chrome|Mac OS X 10.5/.test(t))return!0}return!1},h.prototype.enterFullScreen=function(){var t=this.el_;t.paused&&t.networkState<=t.HAVE_METADATA?(this.el_.play(),this.setTimeout(function(){t.pause(),t.webkitEnterFullScreen()},0)):t.webkitEnterFullScreen()},h.prototype.exitFullScreen=function(){this.el_.webkitExitFullScreen()},h.prototype.src=function(t){if(void 0===t)return this.el_.src;this.setSrc(t)},h.prototype.reset=function(){h.resetMediaElement(this.el_)},h.prototype.currentSrc=function(){return this.currentSource_?this.currentSource_.src:this.el_.currentSrc},h.prototype.setControls=function(t){this.el_.controls=!!t},h.prototype.addTextTrack=function(t,e,n){return this.featuresNativeTextTracks?this.el_.addTextTrack(t,e,n):u.prototype.addTextTrack.call(this,t,e,n)},h.prototype.createRemoteTextTrack=function(t){if(!this.featuresNativeTextTracks)return u.prototype.createRemoteTextTrack.call(this,t);var e=f.createElement("track");return t.kind&&(e.kind=t.kind),t.label&&(e.label=t.label),(t.language||t.srclang)&&(e.srclang=t.language||t.srclang),t.default&&(e.default=t.default),t.id&&(e.id=t.id),t.src&&(e.src=t.src),e},h.prototype.addRemoteTextTrack=function(t,e){var n=u.prototype.addRemoteTextTrack.call(this,t,e);return this.featuresNativeTextTracks&&this.el().appendChild(n),n},h.prototype.removeRemoteTextTrack=function(t){if(u.prototype.removeRemoteTextTrack.call(this,t),this.featuresNativeTextTracks)for(var e=this.$$("track"),n=e.length;n--;)t!==e[n]&&t!==e[n].track||this.el().removeChild(e[n])},h.prototype.getVideoPlaybackQuality=function(){if("function"==typeof this.el().getVideoPlaybackQuality)return this.el().getVideoPlaybackQuality();var t={};return"undefined"!=typeof this.el().webkitDroppedFrameCount&&"undefined"!=typeof this.el().webkitDecodedFrameCount&&(t.droppedVideoFrames=this.el().webkitDroppedFrameCount,t.totalVideoFrames=this.el().webkitDecodedFrameCount),d.performance&&"function"==typeof d.performance.now?t.creationTime=d.performance.now():d.performance&&d.performance.timing&&"number"==typeof d.performance.timing.navigationStart&&(t.creationTime=d.Date.now()-d.performance.timing.navigationStart),t},h}(ir);if(M()){qi.TEST_VID=f.createElement("video");var Ki=f.createElement("track");Ki.kind="captions",Ki.srclang="en",Ki.label="English",qi.TEST_VID.appendChild(Ki)}qi.isSupported=function(){try{qi.TEST_VID.volume=.5}catch(t){return!1}return!(!qi.TEST_VID||!qi.TEST_VID.canPlayType)},qi.canPlayType=function(t){return qi.TEST_VID.canPlayType(t)},qi.canPlaySource=function(t,e){return qi.canPlayType(t.type)},qi.canControlVolume=function(){try{var t=qi.TEST_VID.volume;return qi.TEST_VID.volume=t/2+.1,t!==qi.TEST_VID.volume}catch(t){return!1}},qi.canMuteVolume=function(){try{var t=qi.TEST_VID.muted;return qi.TEST_VID.muted=!t,qi.TEST_VID.muted?X(qi.TEST_VID,"muted","muted"):q(qi.TEST_VID,"muted"),t!==qi.TEST_VID.muted}catch(t){return!1}},qi.canControlPlaybackRate=function(){if(ae&&pe&&de<58)return!1;try{var t=qi.TEST_VID.playbackRate;return qi.TEST_VID.playbackRate=t/2+.1,t!==qi.TEST_VID.playbackRate}catch(t){return!1}},qi.canOverrideAttributes=function(){try{var t=function(){};Object.defineProperty(f.createElement("video"),"src",{get:t,set:t}),Object.defineProperty(f.createElement("audio"),"src",{get:t,set:t}),Object.defineProperty(f.createElement("video"),"innerHTML",{get:t,set:t}),Object.defineProperty(f.createElement("audio"),"innerHTML",{get:t,set:t})}catch(t){return!1}return!0},qi.supportsNativeTextTracks=function(){return ye||oe&&pe},qi.supportsNativeVideoTracks=function(){return!(!qi.TEST_VID||!qi.TEST_VID.videoTracks)},qi.supportsNativeAudioTracks=function(){return!(!qi.TEST_VID||!qi.TEST_VID.audioTracks)},qi.Events=["loadstart","suspend","abort","error","emptied","stalled","loadedmetadata","loadeddata","canplay","canplaythrough","playing","waiting","seeking","seeked","ended","durationchange","timeupdate","progress","play","pause","ratechange","resize","volumechange"],qi.prototype.featuresVolumeControl=qi.canControlVolume(),qi.prototype.featuresMuteControl=qi.canMuteVolume(),qi.prototype.featuresPlaybackRate=qi.canControlPlaybackRate(),qi.prototype.featuresSourceset=qi.canOverrideAttributes(),qi.prototype.movingMediaElementInDOM=!oe,qi.prototype.featuresFullscreenResize=!0,qi.prototype.featuresProgressEvents=!0,qi.prototype.featuresTimeupdateEvents=!0,qi.prototype.featuresNativeTextTracks=qi.supportsNativeTextTracks(),qi.prototype.featuresNativeVideoTracks=qi.supportsNativeVideoTracks(),qi.prototype.featuresNativeAudioTracks=qi.supportsNativeAudioTracks();var $i=qi.TEST_VID&&qi.TEST_VID.constructor.prototype.canPlayType,Yi=/^application\/(?:x-|vnd\.apple\.)mpegurl/i;qi.patchCanPlayType=function(){4<=le&&!ue&&!pe&&(qi.TEST_VID.constructor.prototype.canPlayType=function(t){return t&&Yi.test(t)?"maybe":$i.call(this,t)})},qi.unpatchCanPlayType=function(){var t=qi.TEST_VID.constructor.prototype.canPlayType;return qi.TEST_VID.constructor.prototype.canPlayType=$i,t},qi.patchCanPlayType(),qi.disposeMediaElement=function(t){if(t){for(t.parentNode&&t.parentNode.removeChild(t);t.hasChildNodes();)t.removeChild(t.firstChild);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},qi.resetMediaElement=function(t){if(t){for(var e=t.querySelectorAll("source"),n=e.length;n--;)t.removeChild(e[n]);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},["muted","defaultMuted","autoplay","controls","loop","playsinline"].forEach(function(t){qi.prototype[t]=function(){return this.el_[t]||this.el_.hasAttribute(t)}}),["muted","defaultMuted","autoplay","loop","playsinline"].forEach(function(e){qi.prototype["set"+qt(e)]=function(t){(this.el_[e]=t)?this.el_.setAttribute(e,e):this.el_.removeAttribute(e)}}),["paused","currentTime","buffered","volume","poster","preload","error","seeking","seekable","ended","playbackRate","defaultPlaybackRate","played","networkState","readyState","videoWidth","videoHeight"].forEach(function(t){qi.prototype[t]=function(){return this.el_[t]}}),["volume","src","poster","preload","playbackRate","defaultPlaybackRate"].forEach(function(e){qi.prototype["set"+qt(e)]=function(t){this.el_[e]=t}}),["pause","load","play"].forEach(function(t){qi.prototype[t]=function(){return this.el_[t]()}}),ir.withSourceHandlers(qi),qi.nativeSourceHandler={},qi.nativeSourceHandler.canPlayType=function(t){try{return qi.TEST_VID.canPlayType(t)}catch(t){return""}},qi.nativeSourceHandler.canHandleSource=function(t,e){if(t.type)return qi.nativeSourceHandler.canPlayType(t.type);if(t.src){var n=en(t.src);return qi.nativeSourceHandler.canPlayType("video/"+n)}return""},qi.nativeSourceHandler.handleSource=function(t,e,n){e.setSrc(t.src)},qi.nativeSourceHandler.dispose=function(){},qi.registerSourceHandler(qi.nativeSourceHandler),ir.registerTech("Html5",qi);var Gi=b(["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "],["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "]),Ji=["progress","abort","suspend","emptied","stalled","loadedmetadata","loadeddata","timeupdate","resize","volumechange","texttrackchange"],Qi={canplay:"CanPlay",canplaythrough:"CanPlayThrough",playing:"Playing",seeked:"Seeked"},Zi=function(u){function h(t,e,n){if(g(this,h),t.id=t.id||e.id||"vjs_video_"+lt(),(e=w(h.getTagSettings(t),e)).initChildren=!1,e.createEl=!1,e.evented=!1,e.reportTouchActivity=!1,!e.language)if("function"==typeof t.closest){var r=t.closest("[lang]");r&&r.getAttribute&&(e.language=r.getAttribute("lang"))}else for(var i=t;i&&1===i.nodeType;){if(W(i).hasOwnProperty("lang")){e.language=i.getAttribute("lang");break}i=i.parentNode}var o=_(this,u.call(this,null,e,n));if(o.isPosterFromTech_=!1,o.queuedCallbacks_=[],o.isReady_=!1,o.hasStarted_=!1,o.userActive_=!1,!o.options_||!o.options_.techOrder||!o.options_.techOrder.length)throw new Error("No techOrder specified. Did you overwrite videojs.options instead of just changing the properties you want to override?");if(o.tag=t,o.tagAttributes=t&&W(t),o.language(o.options_.language),e.languages){var s={};Object.getOwnPropertyNames(e.languages).forEach(function(t){s[t.toLowerCase()]=e.languages[t]}),o.languages_=s}else o.languages_=h.prototype.options_.languages;o.cache_={},o.poster_=e.poster||"",o.controls_=!!e.controls,o.cache_.lastVolume=1,t.controls=!1,t.removeAttribute("controls"),t.hasAttribute("autoplay")?o.options_.autoplay=!0:o.autoplay(o.options_.autoplay),o.scrubbing_=!1,o.el_=o.createEl(),o.cache_.lastPlaybackRate=o.defaultPlaybackRate(),Wt(o,{eventBusKey:"el_"});var a=Kt(o.options_);if(e.plugins){var l=e.plugins;Object.keys(l).forEach(function(t){if("function"!=typeof this[t])throw new Error('plugin "'+t+'" does not exist');this[t](l[t])},o)}o.options_.playerOptions=a,o.middleware_=[],o.initChildren(),o.isAudio("audio"===t.nodeName.toLowerCase()),o.controls()?o.addClass("vjs-controls-enabled"):o.addClass("vjs-controls-disabled"),o.el_.setAttribute("role","region"),o.isAudio()?o.el_.setAttribute("aria-label",o.localize("Audio Player")):o.el_.setAttribute("aria-label",o.localize("Video Player")),o.isAudio()&&o.addClass("vjs-audio"),o.flexNotSupported_()&&o.addClass("vjs-no-flex"),oe||o.addClass("vjs-workinghover"),h.players[o.id_]=o;var c=p.split(".")[0];return o.addClass("vjs-v"+c),o.userActive(!0),o.reportUserActivity(),o.one("play",o.listenForUserActivity_),o.on("fullscreenchange",o.handleFullscreenChange_),o.on("stageclick",o.handleStageClick_),o.changingSrc_=!1,o.playWaitingForReady_=!1,o.playOnLoadstart_=null,o}return m(h,u),h.prototype.dispose=function(){this.trigger("dispose"),this.off("dispose"),this.styleEl_&&this.styleEl_.parentNode&&(this.styleEl_.parentNode.removeChild(this.styleEl_),this.styleEl_=null),h.players[this.id_]=null,this.tag&&this.tag.player&&(this.tag.player=null),this.el_&&this.el_.player&&(this.el_.player=null),this.tech_&&(this.tech_.dispose(),this.isPosterFromTech_=!1,this.poster_=""),this.playerElIngest_&&(this.playerElIngest_=null),this.tag&&(this.tag=null),sr[this.id()]=null,u.prototype.dispose.call(this)},h.prototype.createEl=function(){var e=this.tag,n=void 0,t=this.playerElIngest_=e.parentNode&&e.parentNode.hasAttribute&&e.parentNode.hasAttribute("data-vjs-player"),r="video-js"===this.tag.tagName.toLowerCase();t?n=this.el_=e.parentNode:r||(n=this.el_=u.prototype.createEl.call(this,"div"));var i=W(e);if(r){for(n=this.el_=e,e=this.tag=f.createElement("video");n.children.length;)e.appendChild(n.firstChild);F(n,"video-js")||B(n,"video-js"),n.appendChild(e),t=this.playerElIngest_=n,Object.keys(n).forEach(function(t){e[t]=n[t]})}if(e.setAttribute("tabindex","-1"),i.tabindex="-1",fe&&(e.setAttribute("role","application"),i.role="application"),e.removeAttribute("width"),e.removeAttribute("height"),"width"in i&&delete i.width,"height"in i&&delete i.height,Object.getOwnPropertyNames(i).forEach(function(t){r&&"class"===t||n.setAttribute(t,i[t]),r&&e.setAttribute(t,i[t])}),e.playerId=e.id,e.id+="_html5_api",e.className="vjs-tech",e.player=n.player=this,this.addClass("vjs-paused"),!0!==d.VIDEOJS_NO_DYNAMIC_STYLE){this.styleEl_=jt("vjs-styles-dimensions");var o=it(".vjs-styles-defaults"),s=it("head");s.insertBefore(this.styleEl_,o?o.nextSibling:s.firstChild)}this.width(this.options_.width),this.height(this.options_.height),this.fluid(this.options_.fluid),this.aspectRatio(this.options_.aspectRatio);for(var a=e.getElementsByTagName("a"),l=0;l<a.length;l++){var c=a.item(l);B(c,"vjs-hidden"),c.setAttribute("hidden","hidden")}return e.initNetworkState_=e.networkState,e.parentNode&&!t&&e.parentNode.insertBefore(n,e),R(e,n),this.children_.unshift(e),this.el_.setAttribute("lang",this.language_),this.el_=n},h.prototype.width=function(t){return this.dimension("width",t)},h.prototype.height=function(t){return this.dimension("height",t)},h.prototype.dimension=function(t,e){var n=t+"_";if(void 0===e)return this[n]||0;if(""===e)return this[n]=void 0,void this.updateStyleEl_();var r=parseFloat(e);isNaN(r)?v.error('Improper value "'+e+'" supplied for for '+t):(this[n]=r,this.updateStyleEl_())},h.prototype.fluid=function(t){if(void 0===t)return!!this.fluid_;this.fluid_=!!t,t?this.addClass("vjs-fluid"):this.removeClass("vjs-fluid"),this.updateStyleEl_()},h.prototype.aspectRatio=function(t){if(void 0===t)return this.aspectRatio_;if(!/^\d+\:\d+$/.test(t))throw new Error("Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.");this.aspectRatio_=t,this.fluid(!0),this.updateStyleEl_()},h.prototype.updateStyleEl_=function(){if(!0!==d.VIDEOJS_NO_DYNAMIC_STYLE){var t=void 0,e=void 0,n=void 0,r=(void 0!==this.aspectRatio_&&"auto"!==this.aspectRatio_?this.aspectRatio_:0<this.videoWidth()?this.videoWidth()+":"+this.videoHeight():"16:9").split(":"),i=r[1]/r[0];t=void 0!==this.width_?this.width_:void 0!==this.height_?this.height_/i:this.videoWidth()||300,e=void 0!==this.height_?this.height_:t*i,n=/^[^a-zA-Z]/.test(this.id())?"dimensions-"+this.id():this.id()+"-dimensions",this.addClass(n),At(this.styleEl_,"\n ."+n+" {\n width: "+t+"px;\n height: "+e+"px;\n }\n\n ."+n+".vjs-fluid {\n padding-top: "+100*i+"%;\n }\n ")}else{var o="number"==typeof this.width_?this.width_:this.options_.width,s="number"==typeof this.height_?this.height_:this.options_.height,a=this.tech_&&this.tech_.el();a&&(0<=o&&(a.width=o),0<=s&&(a.height=s))}},h.prototype.loadTech_=function(t,e){var n=this;this.tech_&&this.unloadTech_();var r=qt(t),i=t.charAt(0).toLowerCase()+t.slice(1);"Html5"!==r&&this.tag&&(ir.getTech("Html5").disposeMediaElement(this.tag),this.tag.player=null,this.tag=null),this.techName_=r,this.isReady_=!1;var o={source:e,autoplay:"string"!=typeof this.autoplay()&&this.autoplay(),nativeControlsForTouch:this.options_.nativeControlsForTouch,playerId:this.id(),techId:this.id()+"_"+i+"_api",playsinline:this.options_.playsinline,preload:this.options_.preload,loop:this.options_.loop,muted:this.options_.muted,poster:this.poster(),language:this.language(),playerElIngest:this.playerElIngest_||!1,"vtt.js":this.options_["vtt.js"],canOverridePoster:!!this.options_.techCanOverridePoster,enableSourceset:this.options_.enableSourceset};jn.names.forEach(function(t){var e=jn[t];o[e.getterName]=n[e.privateName]}),w(o,this.options_[r]),w(o,this.options_[i]),w(o,this.options_[t.toLowerCase()]),this.tag&&(o.tag=this.tag),e&&e.src===this.cache_.src&&0<this.cache_.currentTime&&(o.startTime=this.cache_.currentTime);var s=ir.getTech(t);if(!s)throw new Error("No Tech named '"+r+"' exists! '"+r+"' should be registered using videojs.registerTech()'");this.tech_=new s(o),this.tech_.ready(Pt(this,this.handleTechReady_),!0),De(this.textTracksJson_||[],this.tech_),Ji.forEach(function(t){n.on(n.tech_,t,n["handleTech"+qt(t)+"_"])}),Object.keys(Qi).forEach(function(e){n.on(n.tech_,e,function(t){0===n.tech_.playbackRate()&&n.tech_.seeking()?n.queuedCallbacks_.push({callback:n["handleTech"+Qi[e]+"_"].bind(n),event:t}):n["handleTech"+Qi[e]+"_"](t)})}),this.on(this.tech_,"loadstart",this.handleTechLoadStart_),this.on(this.tech_,"sourceset",this.handleTechSourceset_),this.on(this.tech_,"waiting",this.handleTechWaiting_),this.on(this.tech_,"ended",this.handleTechEnded_),this.on(this.tech_,"seeking",this.handleTechSeeking_),this.on(this.tech_,"play",this.handleTechPlay_),this.on(this.tech_,"firstplay",this.handleTechFirstPlay_),this.on(this.tech_,"pause",this.handleTechPause_),this.on(this.tech_,"durationchange",this.handleTechDurationChange_),this.on(this.tech_,"fullscreenchange",this.handleTechFullscreenChange_),this.on(this.tech_,"error",this.handleTechError_),this.on(this.tech_,"loadedmetadata",this.updateStyleEl_),this.on(this.tech_,"posterchange",this.handleTechPosterChange_),this.on(this.tech_,"textdata",this.handleTechTextData_),this.on(this.tech_,"ratechange",this.handleTechRateChange_),this.usingNativeControls(this.techGet_("controls")),this.controls()&&!this.usingNativeControls()&&this.addTechControlsListeners_(),this.tech_.el().parentNode===this.el()||"Html5"===r&&this.tag||R(this.tech_.el(),this.el()),this.tag&&(this.tag.player=null,this.tag=null)},h.prototype.unloadTech_=function(){var n=this;jn.names.forEach(function(t){var e=jn[t];n[e.privateName]=n[e.getterName]()}),this.textTracksJson_=Ie(this.tech_),this.isReady_=!1,this.tech_.dispose(),this.tech_=!1,this.isPosterFromTech_&&(this.poster_="",this.trigger("posterchange")),this.isPosterFromTech_=!1},h.prototype.tech=function(t){return void 0===t&&v.warn(y(Gi)),this.tech_},h.prototype.addTechControlsListeners_=function(){this.removeTechControlsListeners_(),this.on(this.tech_,"mousedown",this.handleTechClick_),this.on(this.tech_,"dblclick",this.handleTechDoubleClick_),this.on(this.tech_,"touchstart",this.handleTechTouchStart_),this.on(this.tech_,"touchmove",this.handleTechTouchMove_),this.on(this.tech_,"touchend",this.handleTechTouchEnd_),this.on(this.tech_,"tap",this.handleTechTap_)},h.prototype.removeTechControlsListeners_=function(){this.off(this.tech_,"tap",this.handleTechTap_),this.off(this.tech_,"touchstart",this.handleTechTouchStart_),this.off(this.tech_,"touchmove",this.handleTechTouchMove_),this.off(this.tech_,"touchend",this.handleTechTouchEnd_),this.off(this.tech_,"mousedown",this.handleTechClick_),this.off(this.tech_,"dblclick",this.handleTechDoubleClick_)},h.prototype.handleTechReady_=function(){this.triggerReady(),this.cache_.volume&&this.techCall_("setVolume",this.cache_.volume),this.handleTechPosterChange_(),this.handleTechDurationChange_()},h.prototype.handleTechLoadStart_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-seeking"),this.error(null),this.paused()?(this.hasStarted(!1),this.trigger("loadstart")):(this.trigger("loadstart"),this.trigger("firstplay")),this.manualAutoplay_(this.autoplay())},h.prototype.manualAutoplay_=function(e){var n=this;if(this.tech_&&"string"==typeof e){var t=function(){var e=n.muted();n.muted(!0);var t=n.play();if(t&&t.then&&t.catch)return t.catch(function(t){n.muted(e)})},r=void 0;if("any"===e?(r=this.play())&&r.then&&r.catch&&r.catch(function(){return t()}):r="muted"===e?t():this.play(),r&&r.then&&r.catch)return r.then(function(){n.trigger({type:"autoplay-success",autoplay:e})}).catch(function(t){n.trigger({type:"autoplay-failure",autoplay:e})})}},h.prototype.updateSourceCaches_=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=t,n="";if("string"!=typeof e&&(e=t.src,n=t.type),!/^blob:/.test(e)){this.cache_.source=this.cache_.source||{},this.cache_.sources=this.cache_.sources||[],e&&!n&&(n=function(t,e){if(!e)return"";if(t.cache_.source.src===e&&t.cache_.source.type)return t.cache_.source.type;var n=t.cache_.sources.filter(function(t){return t.src===e});if(n.length)return n[0].type;for(var r=t.$$("source"),i=0;i<r.length;i++){var o=r[i];if(o.type&&o.src&&o.src===e)return o.type}return vr(e)}(this,e)),this.cache_.source=Kt({},t,{src:e,type:n});for(var r=this.cache_.sources.filter(function(t){return t.src&&t.src===e}),i=[],o=this.$$("source"),s=[],a=0;a<o.length;a++){var l=W(o[a]);i.push(l),l.src&&l.src===e&&s.push(l.src)}s.length&&!r.length?this.cache_.sources=i:r.length||(this.cache_.sources=[this.cache_.source]),this.cache_.src=e}},h.prototype.handleTechSourceset_=function(t){var n=this;if(!this.changingSrc_&&(this.updateSourceCaches_(t.src),!t.src)){this.tech_.one(["sourceset","loadstart"],function t(e){"sourceset"!==e.type&&n.updateSourceCaches_(n.techGet_("currentSrc")),n.tech_.off(["sourceset","loadstart"],t)})}this.trigger({src:t.src,type:"sourceset"})},h.prototype.hasStarted=function(t){if(void 0===t)return this.hasStarted_;t!==this.hasStarted_&&(this.hasStarted_=t,this.hasStarted_?(this.addClass("vjs-has-started"),this.trigger("firstplay")):this.removeClass("vjs-has-started"))},h.prototype.handleTechPlay_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.hasStarted(!0),this.trigger("play")},h.prototype.handleTechRateChange_=function(){0<this.tech_.playbackRate()&&0===this.cache_.lastPlaybackRate&&(this.queuedCallbacks_.forEach(function(t){return t.callback(t.event)}),this.queuedCallbacks_=[]),this.cache_.lastPlaybackRate=this.tech_.playbackRate(),this.trigger("ratechange")},h.prototype.handleTechWaiting_=function(){var t=this;this.addClass("vjs-waiting"),this.trigger("waiting"),this.one("timeupdate",function(){return t.removeClass("vjs-waiting")})},h.prototype.handleTechCanPlay_=function(){this.removeClass("vjs-waiting"),this.trigger("canplay")},h.prototype.handleTechCanPlayThrough_=function(){this.removeClass("vjs-waiting"),this.trigger("canplaythrough")},h.prototype.handleTechPlaying_=function(){this.removeClass("vjs-waiting"),this.trigger("playing")},h.prototype.handleTechSeeking_=function(){this.addClass("vjs-seeking"),this.trigger("seeking")},h.prototype.handleTechSeeked_=function(){this.removeClass("vjs-seeking"),this.trigger("seeked")},h.prototype.handleTechFirstPlay_=function(){this.options_.starttime&&(v.warn("Passing the `starttime` option to the player will be deprecated in 6.0"),this.currentTime(this.options_.starttime)),this.addClass("vjs-has-started"),this.trigger("firstplay")},h.prototype.handleTechPause_=function(){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.trigger("pause")},h.prototype.handleTechEnded_=function(){this.addClass("vjs-ended"),this.options_.loop?(this.currentTime(0),this.play()):this.paused()||this.pause(),this.trigger("ended")},h.prototype.handleTechDurationChange_=function(){this.duration(this.techGet_("duration"))},h.prototype.handleTechClick_=function(t){rt(t)&&this.controls_&&(this.paused()?Ne(this.play()):this.pause())},h.prototype.handleTechDoubleClick_=function(e){this.controls_&&(Array.prototype.some.call(this.$$(".vjs-control-bar, .vjs-modal-dialog"),function(t){return t.contains(e.target)})||(this.isFullscreen()?this.exitFullscreen():this.requestFullscreen()))},h.prototype.handleTechTap_=function(){this.userActive(!this.userActive())},h.prototype.handleTechTouchStart_=function(){this.userWasActive=this.userActive()},h.prototype.handleTechTouchMove_=function(){this.userWasActive&&this.reportUserActivity()},h.prototype.handleTechTouchEnd_=function(t){t.preventDefault()},h.prototype.handleFullscreenChange_=function(){this.isFullscreen()?this.addClass("vjs-fullscreen"):this.removeClass("vjs-fullscreen")},h.prototype.handleStageClick_=function(){this.reportUserActivity()},h.prototype.handleTechFullscreenChange_=function(t,e){e&&this.isFullscreen(e.isFullscreen),this.trigger("fullscreenchange")},h.prototype.handleTechError_=function(){var t=this.tech_.error();this.error(t)},h.prototype.handleTechTextData_=function(){var t=null;1<arguments.length&&(t=arguments[1]),this.trigger("textdata",t)},h.prototype.getCache=function(){return this.cache_},h.prototype.techCall_=function(i,o){this.ready(function(){if(i in hr)return t=this.middleware_,e=this.tech_,r=o,e[n=i](t.reduce(dr(n),r));if(i in pr)return cr(this.middleware_,this.tech_,i,o);var t,e,n,r;try{this.tech_&&this.tech_[i](o)}catch(t){throw v(t),t}},!0)},h.prototype.techGet_=function(e){if(this.tech_&&this.tech_.isReady_){if(e in ur)return t=this.middleware_,n=this.tech_,r=e,t.reduceRight(dr(r),n[r]());if(e in pr)return cr(this.middleware_,this.tech_,e);var t,n,r;try{return this.tech_[e]()}catch(t){if(void 0===this.tech_[e])throw v("Video.js: "+e+" method not defined for "+this.techName_+" playback technology.",t),t;if("TypeError"===t.name)throw v("Video.js: "+e+" unavailable on "+this.techName_+" playback technology element.",t),this.tech_.isReady_=!1,t;throw v(t),t}}},h.prototype.play=function(){var e=this,t=this.options_.Promise||d.Promise;return t?new t(function(t){e.play_(t)}):this.play_()},h.prototype.play_=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:Ne;if(this.playOnLoadstart_&&this.off("loadstart",this.playOnLoadstart_),this.isReady_){if(!this.changingSrc_&&(this.src()||this.currentSrc()))return void e(this.techGet_("play"));this.playOnLoadstart_=function(){t.playOnLoadstart_=null,e(t.play())},this.one("loadstart",this.playOnLoadstart_)}else{if(this.playWaitingForReady_)return;this.playWaitingForReady_=!0,this.ready(function(){t.playWaitingForReady_=!1,e(t.play())})}},h.prototype.pause=function(){this.techCall_("pause")},h.prototype.paused=function(){return!1!==this.techGet_("paused")},h.prototype.played=function(){return this.techGet_("played")||Te(0,0)},h.prototype.scrubbing=function(t){if("undefined"==typeof t)return this.scrubbing_;this.scrubbing_=!!t,t?this.addClass("vjs-scrubbing"):this.removeClass("vjs-scrubbing")},h.prototype.currentTime=function(t){return"undefined"!=typeof t?(t<0&&(t=0),void this.techCall_("setCurrentTime",t)):(this.cache_.currentTime=this.techGet_("currentTime")||0,this.cache_.currentTime)},h.prototype.duration=function(t){if(void 0===t)return void 0!==this.cache_.duration?this.cache_.duration:NaN;(t=parseFloat(t))<0&&(t=1/0),t!==this.cache_.duration&&((this.cache_.duration=t)===1/0?this.addClass("vjs-live"):this.removeClass("vjs-live"),this.trigger("durationchange"))},h.prototype.remainingTime=function(){return this.duration()-this.currentTime()},h.prototype.remainingTimeDisplay=function(){return Math.floor(this.duration())-Math.floor(this.currentTime())},h.prototype.buffered=function(){var t=this.techGet_("buffered");return t&&t.length||(t=Te(0,0)),t},h.prototype.bufferedPercent=function(){return Ce(this.buffered(),this.duration())},h.prototype.bufferedEnd=function(){var t=this.buffered(),e=this.duration(),n=t.end(t.length-1);return e<n&&(n=e),n},h.prototype.volume=function(t){var e=void 0;return void 0!==t?(e=Math.max(0,Math.min(1,parseFloat(t))),this.cache_.volume=e,this.techCall_("setVolume",e),void(0<e&&this.lastVolume_(e))):(e=parseFloat(this.techGet_("volume")),isNaN(e)?1:e)},h.prototype.muted=function(t){if(void 0===t)return this.techGet_("muted")||!1;this.techCall_("setMuted",t)},h.prototype.defaultMuted=function(t){return void 0!==t?this.techCall_("setDefaultMuted",t):this.techGet_("defaultMuted")||!1},h.prototype.lastVolume_=function(t){if(void 0===t||0===t)return this.cache_.lastVolume;this.cache_.lastVolume=t},h.prototype.supportsFullScreen=function(){return this.techGet_("supportsFullScreen")||!1},h.prototype.isFullscreen=function(t){if(void 0===t)return!!this.isFullscreen_;this.isFullscreen_=!!t},h.prototype.requestFullscreen=function(){var n=ke;this.isFullscreen(!0),n.requestFullscreen?(_t(f,n.fullscreenchange,Pt(this,function t(e){this.isFullscreen(f[n.fullscreenElement]),!1===this.isFullscreen()&&bt(f,n.fullscreenchange,t),this.trigger("fullscreenchange")})),this.el_[n.requestFullscreen]()):this.tech_.supportsFullScreen()?this.techCall_("enterFullScreen"):(this.enterFullWindow(),this.trigger("fullscreenchange"))},h.prototype.exitFullscreen=function(){var t=ke;this.isFullscreen(!1),t.requestFullscreen?f[t.exitFullscreen]():this.tech_.supportsFullScreen()?this.techCall_("exitFullScreen"):(this.exitFullWindow(),this.trigger("fullscreenchange"))},h.prototype.enterFullWindow=function(){this.isFullWindow=!0,this.docOrigOverflow=f.documentElement.style.overflow,_t(f,"keydown",Pt(this,this.fullWindowOnEscKey)),f.documentElement.style.overflow="hidden",B(f.body,"vjs-full-window"),this.trigger("enterFullWindow")},h.prototype.fullWindowOnEscKey=function(t){27===t.keyCode&&(!0===this.isFullscreen()?this.exitFullscreen():this.exitFullWindow())},h.prototype.exitFullWindow=function(){this.isFullWindow=!1,bt(f,"keydown",this.fullWindowOnEscKey),f.documentElement.style.overflow=this.docOrigOverflow,H(f.body,"vjs-full-window"),this.trigger("exitFullWindow")},h.prototype.canPlayType=function(t){for(var e=void 0,n=0,r=this.options_.techOrder;n<r.length;n++){var i=r[n],o=ir.getTech(i);if(o||(o=$t.getComponent(i)),o){if(o.isSupported()&&(e=o.canPlayType(t)))return e}else v.error('The "'+i+'" tech is undefined. Skipped browser support check for that tech.')}return""},h.prototype.selectSource=function(t){var n,r=this,e=this.options_.techOrder.map(function(t){return[t,ir.getTech(t)]}).filter(function(t){var e=t[0],n=t[1];return n?n.isSupported():(v.error('The "'+e+'" tech is undefined. Skipped browser support check for that tech.'),!1)}),i=function(t,n,r){var i=void 0;return t.some(function(e){return n.some(function(t){if(i=r(e,t))return!0})}),i},o=function(t,e){var n=t[0];if(t[1].canPlaySource(e,r.options_[n.toLowerCase()]))return{source:e,tech:n}};return(this.options_.sourceOrder?i(t,e,(n=o,function(t,e){return n(e,t)})):i(e,t,o))||!1},h.prototype.src=function(t){var i=this;if("undefined"==typeof t)return this.cache_.src||"";var o=function e(t){if(Array.isArray(t)){var n=[];t.forEach(function(t){t=e(t),Array.isArray(t)?n=n.concat(t):E(t)&&n.push(t)}),t=n}else t="string"==typeof t&&t.trim()?[yr({src:t})]:E(t)&&"string"==typeof t.src&&t.src&&t.src.trim()?[yr(t)]:[];return t}(t);o.length?(this.changingSrc_=!0,this.cache_.sources=o,this.updateSourceCaches_(o[0]),lr(this,o[0],function(t,e){var n,r;if(i.middleware_=e,i.cache_.sources=o,i.updateSourceCaches_(t),i.src_(t))return 1<o.length?i.src(o.slice(1)):(i.changingSrc_=!1,i.setTimeout(function(){this.error({code:4,message:this.localize(this.options_.notSupportedMessage)})},0),void i.triggerReady());n=e,r=i.tech_,n.forEach(function(t){return t.setTech&&t.setTech(r)})})):this.setTimeout(function(){this.error({code:4,message:this.localize(this.options_.notSupportedMessage)})},0)},h.prototype.src_=function(t){var e,n,r=this,i=this.selectSource([t]);return!i||(e=i.tech,n=this.techName_,qt(e)!==qt(n)?(this.changingSrc_=!0,this.loadTech_(i.tech,i.source),this.tech_.ready(function(){r.changingSrc_=!1})):this.ready(function(){this.tech_.constructor.prototype.hasOwnProperty("setSource")?this.techCall_("setSource",t):this.techCall_("src",t.src),this.changingSrc_=!1},!0),!1)},h.prototype.load=function(){this.techCall_("load")},h.prototype.reset=function(){this.tech_&&this.tech_.clearTracks("text"),this.loadTech_(this.options_.techOrder[0],null),this.techCall_("reset")},h.prototype.currentSources=function(){var t=this.currentSource(),e=[];return 0!==Object.keys(t).length&&e.push(t),this.cache_.sources||e},h.prototype.currentSource=function(){return this.cache_.source||{}},h.prototype.currentSrc=function(){return this.currentSource()&&this.currentSource().src||""},h.prototype.currentType=function(){return this.currentSource()&&this.currentSource().type||""},h.prototype.preload=function(t){return void 0!==t?(this.techCall_("setPreload",t),void(this.options_.preload=t)):this.techGet_("preload")},h.prototype.autoplay=function(t){if(void 0===t)return this.options_.autoplay||!1;var e=void 0;"string"==typeof t&&/(any|play|muted)/.test(t)?(this.options_.autoplay=t,this.manualAutoplay_(t),e=!1):this.options_.autoplay=!!t,e=e||this.options_.autoplay,this.tech_&&this.techCall_("setAutoplay",e)},h.prototype.playsinline=function(t){return void 0!==t?(this.techCall_("setPlaysinline",t),this.options_.playsinline=t,this):this.techGet_("playsinline")},h.prototype.loop=function(t){return void 0!==t?(this.techCall_("setLoop",t),void(this.options_.loop=t)):this.techGet_("loop")},h.prototype.poster=function(t){if(void 0===t)return this.poster_;t||(t=""),t!==this.poster_&&(this.poster_=t,this.techCall_("setPoster",t),this.isPosterFromTech_=!1,this.trigger("posterchange"))},h.prototype.handleTechPosterChange_=function(){if((!this.poster_||this.options_.techCanOverridePoster)&&this.tech_&&this.tech_.poster){var t=this.tech_.poster()||"";t!==this.poster_&&(this.poster_=t,this.isPosterFromTech_=!0,this.trigger("posterchange"))}},h.prototype.controls=function(t){if(void 0===t)return!!this.controls_;t=!!t,this.controls_!==t&&(this.controls_=t,this.usingNativeControls()&&this.techCall_("setControls",t),this.controls_?(this.removeClass("vjs-controls-disabled"),this.addClass("vjs-controls-enabled"),this.trigger("controlsenabled"),this.usingNativeControls()||this.addTechControlsListeners_()):(this.removeClass("vjs-controls-enabled"),this.addClass("vjs-controls-disabled"),this.trigger("controlsdisabled"),this.usingNativeControls()||this.removeTechControlsListeners_()))},h.prototype.usingNativeControls=function(t){if(void 0===t)return!!this.usingNativeControls_;t=!!t,this.usingNativeControls_!==t&&(this.usingNativeControls_=t,this.usingNativeControls_?(this.addClass("vjs-using-native-controls"),this.trigger("usingnativecontrols")):(this.removeClass("vjs-using-native-controls"),this.trigger("usingcustomcontrols")))},h.prototype.error=function(t){return void 0===t?this.error_||null:null===t?(this.error_=t,this.removeClass("vjs-error"),void(this.errorDisplay&&this.errorDisplay.close())):(this.error_=new Ae(t),this.addClass("vjs-error"),v.error("(CODE:"+this.error_.code+" "+Ae.errorTypes[this.error_.code]+")",this.error_.message,this.error_),void this.trigger("error"))},h.prototype.reportUserActivity=function(t){this.userActivity_=!0},h.prototype.userActive=function(t){if(void 0===t)return this.userActive_;if((t=!!t)!==this.userActive_){if(this.userActive_=t,this.userActive_)return this.userActivity_=!0,this.removeClass("vjs-user-inactive"),this.addClass("vjs-user-active"),void this.trigger("useractive");this.tech_&&this.tech_.one("mousemove",function(t){t.stopPropagation(),t.preventDefault()}),this.userActivity_=!1,this.removeClass("vjs-user-active"),this.addClass("vjs-user-inactive"),this.trigger("userinactive")}},h.prototype.listenForUserActivity_=function(){var e=void 0,n=void 0,r=void 0,i=Pt(this,this.reportUserActivity);this.on("mousedown",function(){i(),this.clearInterval(e),e=this.setInterval(i,250)}),this.on("mousemove",function(t){t.screenX===n&&t.screenY===r||(n=t.screenX,r=t.screenY,i())}),this.on("mouseup",function(t){i(),this.clearInterval(e)}),this.on("keydown",i),this.on("keyup",i);var o=void 0;this.setInterval(function(){if(this.userActivity_){this.userActivity_=!1,this.userActive(!0),this.clearTimeout(o);var t=this.options_.inactivityTimeout;t<=0||(o=this.setTimeout(function(){this.userActivity_||this.userActive(!1)},t))}},250)},h.prototype.playbackRate=function(t){if(void 0===t)return this.tech_&&this.tech_.featuresPlaybackRate?this.cache_.lastPlaybackRate||this.techGet_("playbackRate"):1;this.techCall_("setPlaybackRate",t)},h.prototype.defaultPlaybackRate=function(t){return void 0!==t?this.techCall_("setDefaultPlaybackRate",t):this.tech_&&this.tech_.featuresPlaybackRate?this.techGet_("defaultPlaybackRate"):1},h.prototype.isAudio=function(t){if(void 0===t)return!!this.isAudio_;this.isAudio_=!!t},h.prototype.addTextTrack=function(t,e,n){if(this.tech_)return this.tech_.addTextTrack(t,e,n)},h.prototype.addRemoteTextTrack=function(t,e){if(this.tech_)return this.tech_.addRemoteTextTrack(t,e)},h.prototype.removeRemoteTextTrack=function(){var t=(0<arguments.length&&void 0!==arguments[0]?arguments[0]:{}).track,e=void 0===t?arguments[0]:t;if(this.tech_)return this.tech_.removeRemoteTextTrack(e)},h.prototype.getVideoPlaybackQuality=function(){return this.techGet_("getVideoPlaybackQuality")},h.prototype.videoWidth=function(){return this.tech_&&this.tech_.videoWidth&&this.tech_.videoWidth()||0},h.prototype.videoHeight=function(){return this.tech_&&this.tech_.videoHeight&&this.tech_.videoHeight()||0},h.prototype.language=function(t){if(void 0===t)return this.language_;this.language_=String(t).toLowerCase()},h.prototype.languages=function(){return Kt(h.prototype.options_.languages,this.languages_)},h.prototype.toJSON=function(){var t=Kt(this.options_),e=t.tracks;t.tracks=[];for(var n=0;n<e.length;n++){var r=e[n];(r=Kt(r)).player=void 0,t.tracks[n]=r}return t},h.prototype.createModal=function(t,e){var n=this;(e=e||{}).content=t||"";var r=new Fe(this,e);return this.addChild(r),r.on("dispose",function(){n.removeChild(r)}),r.open(),r},h.getTagSettings=function(t){var e={sources:[],tracks:[]},n=W(t),r=n["data-setup"];if(F(t,"vjs-fluid")&&(n.fluid=!0),null!==r){var i=Me(r||"{}"),o=i[0],s=i[1];o&&v.error(o),w(n,s)}if(w(e,n),t.hasChildNodes())for(var a=t.childNodes,l=0,c=a.length;l<c;l++){var u=a[l],h=u.nodeName.toLowerCase();"source"===h?e.sources.push(W(u)):"track"===h&&e.tracks.push(W(u))}return e},h.prototype.flexNotSupported_=function(){var t=f.createElement("i");return!("flexBasis"in t.style||"webkitFlexBasis"in t.style||"mozFlexBasis"in t.style||"msFlexBasis"in t.style||"msFlexOrder"in t.style)},h}($t);jn.names.forEach(function(t){var e=jn[t];Zi.prototype[e.getterName]=function(){return this.tech_?this.tech_[e.getterName]():(this[e.privateName]=this[e.privateName]||new e.ListClass,this[e.privateName])}}),Zi.players={};var to=d.navigator;Zi.prototype.options_={techOrder:ir.defaultTechOrder_,html5:{},flash:{},inactivityTimeout:2e3,playbackRates:[],children:["mediaLoader","posterImage","textTrackDisplay","loadingSpinner","bigPlayButton","controlBar","errorDisplay","textTrackSettings","resizeManager"],language:to&&(to.languages&&to.languages[0]||to.userLanguage||to.language)||"en",languages:{},notSupportedMessage:"No compatible source was found for this media."},["ended","seeking","seekable","networkState","readyState"].forEach(function(t){Zi.prototype[t]=function(){return this.techGet_(t)}}),Ji.forEach(function(t){Zi.prototype["handleTech"+qt(t)+"_"]=function(){return this.trigger(t)}}),$t.registerComponent("Player",Zi);var eo="plugin",no="activePlugins_",ro={},io=function(t){return ro.hasOwnProperty(t)},oo=function(t){return io(t)?ro[t]:void 0},so=function(t,e){t[no]=t[no]||{},t[no][e]=!0},ao=function(t,e,n){var r=(n?"before":"")+"pluginsetup";t.trigger(r,e),t.trigger(r+":"+e.name,e)},lo=function(i,o){return o.prototype.name=i,function(){ao(this,{name:i,plugin:o,instance:null},!0);for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];var r=new(Function.prototype.bind.apply(o,[null].concat([this].concat(e))));return this[i]=function(){return r},ao(this,r.getEventHash()),r}},co=function(){function o(t){if(g(this,o),this.constructor===o)throw new Error("Plugin must be sub-classed; not directly instantiated.");this.player=t,Wt(this),delete this.trigger,Xt(this,this.constructor.defaultState),so(t,this.name),this.dispose=Pt(this,this.dispose),t.on("dispose",this.dispose)}return o.prototype.version=function(){return this.constructor.VERSION},o.prototype.getEventHash=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};return t.name=this.name,t.plugin=this.constructor,t.instance=this,t},o.prototype.trigger=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return Tt(this.eventBusEl_,t,this.getEventHash(e))},o.prototype.handleStateChanged=function(t){},o.prototype.dispose=function(){var t=this.name,e=this.player;this.trigger("dispose"),this.off(),e.off("dispose",this.dispose),e[no][t]=!1,this.player=this.state=null,e[t]=lo(t,ro[t])},o.isBasic=function(t){var e="string"==typeof t?oo(t):t;return"function"==typeof e&&!o.prototype.isPrototypeOf(e.prototype)},o.registerPlugin=function(t,e){if("string"!=typeof t)throw new Error('Illegal plugin name, "'+t+'", must be a string, was '+("undefined"==typeof t?"undefined":h(t))+".");if(io(t))v.warn('A plugin named "'+t+'" already exists. You may want to avoid re-registering plugins!');else if(Zi.prototype.hasOwnProperty(t))throw new Error('Illegal plugin name, "'+t+'", cannot share a name with an existing player method!');if("function"!=typeof e)throw new Error('Illegal plugin for "'+t+'", must be a function, was '+("undefined"==typeof e?"undefined":h(e))+".");var n,r,i;return ro[t]=e,t!==eo&&(o.isBasic(e)?Zi.prototype[t]=(n=t,r=e,i=function(){ao(this,{name:n,plugin:r,instance:null},!0);var t=r.apply(this,arguments);return so(this,n),ao(this,{name:n,plugin:r,instance:t}),t},Object.keys(r).forEach(function(t){i[t]=r[t]}),i):Zi.prototype[t]=lo(t,e)),e},o.deregisterPlugin=function(t){if(t===eo)throw new Error("Cannot de-register base plugin.");io(t)&&(delete ro[t],delete Zi.prototype[t])},o.getPlugins=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:Object.keys(ro),n=void 0;return t.forEach(function(t){var e=oo(t);e&&((n=n||{})[t]=e)}),n},o.getPluginVersion=function(t){var e=oo(t);return e&&e.VERSION||""},o}();co.getPlugin=oo,co.BASE_PLUGIN_NAME=eo,co.registerPlugin(eo,co),Zi.prototype.usingPlugin=function(t){return!!this[no]&&!0===this[no][t]},Zi.prototype.hasPlugin=function(t){return!!io(t)};var uo=function(t){return 0===t.indexOf("#")?t.slice(1):t};function ho(t,n,e){var r=ho.getPlayer(t);if(r)return n&&v.warn('Player "'+t+'" is already initialised. Options will not be applied.'),e&&r.ready(e),r;var i="string"==typeof t?it("#"+uo(t)):t;if(!O(i))throw new TypeError("The element or ID supplied is not valid. (videojs)");f.body.contains(i)||v.warn("The element supplied is not included in the DOM"),n=n||{},ho.hooks("beforesetup").forEach(function(t){var e=t(i,Kt(n));E(e)&&!Array.isArray(e)?n=Kt(n,e):v.error("please return an object in beforesetup hooks")});var o=$t.getComponent("Player");return r=new o(i,n,e),ho.hooks("setup").forEach(function(t){return t(r)}),r}if(ho.hooks_={},ho.hooks=function(t,e){return ho.hooks_[t]=ho.hooks_[t]||[],e&&(ho.hooks_[t]=ho.hooks_[t].concat(e)),ho.hooks_[t]},ho.hook=function(t,e){ho.hooks(t,e)},ho.hookOnce=function(n,t){ho.hooks(n,[].concat(t).map(function(e){return function t(){return ho.removeHook(n,t),e.apply(void 0,arguments)}}))},ho.removeHook=function(t,e){var n=ho.hooks(t).indexOf(e);return!(n<=-1)&&(ho.hooks_[t]=ho.hooks_[t].slice(),ho.hooks_[t].splice(n,1),!0)},!0!==d.VIDEOJS_NO_DYNAMIC_STYLE&&M()){var po=it(".vjs-styles-defaults");if(!po){po=jt("vjs-styles-defaults");var fo=it("head");fo&&fo.insertBefore(po,fo.firstChild),At(po,"\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ")}}return xt(1,ho),ho.VERSION=p,ho.options=Zi.prototype.options_,ho.getPlayers=function(){return Zi.players},ho.getPlayer=function(t){var e=Zi.players,n=void 0;if("string"==typeof t){var r=uo(t),i=e[r];if(i)return i;n=it("#"+r)}else n=t;if(O(n)){var o=n,s=o.player,a=o.playerId;if(s||e[a])return s||e[a]}},ho.getAllPlayers=function(){return Object.keys(Zi.players).map(function(t){return Zi.players[t]}).filter(Boolean)},ho.players=Zi.players,ho.getComponent=$t.getComponent,ho.registerComponent=function(t,e){ir.isTech(e)&&v.warn("The "+t+" tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)"),$t.registerComponent.call($t,t,e)},ho.getTech=ir.getTech,ho.registerTech=ir.registerTech,ho.use=function(t,e){or[t]=or[t]||[],or[t].push(e)},Object.defineProperty(ho,"middleware",{value:{},writeable:!1,enumerable:!0}),Object.defineProperty(ho.middleware,"TERMINATOR",{value:ar,writeable:!1,enumerable:!0}),ho.browser=me,ho.TOUCH_ENABLED=ge,ho.extend=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=function(){t.apply(this,arguments)},r={};for(var i in"object"===("undefined"==typeof e?"undefined":h(e))?(e.constructor!==Object.prototype.constructor&&(n=e.constructor),r=e):"function"==typeof e&&(n=e),function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+("undefined"==typeof e?"undefined":h(e)));t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(t.super_=e)}(n,t),r)r.hasOwnProperty(i)&&(n.prototype[i]=r[i]);return n},ho.mergeOptions=Kt,ho.bind=Pt,ho.registerPlugin=co.registerPlugin,ho.deregisterPlugin=co.deregisterPlugin,ho.plugin=function(t,e){return v.warn("videojs.plugin() is deprecated; use videojs.registerPlugin() instead"),co.registerPlugin(t,e)},ho.getPlugins=co.getPlugins,ho.getPlugin=co.getPlugin,ho.getPluginVersion=co.getPluginVersion,ho.addLanguage=function(t,e){var n;return t=(""+t).toLowerCase(),ho.options.languages=Kt(ho.options.languages,((n={})[t]=e,n)),ho.options.languages[t]},ho.log=v,ho.createTimeRange=ho.createTimeRanges=Te,ho.formatTime=Or,ho.setFormatTime=function(t){Mr=t},ho.resetFormatTime=function(){Mr=Pr},ho.parseUrl=Ze,ho.isCrossOrigin=nn,ho.EventTarget=Nt,ho.on=_t,ho.one=Ct,ho.off=bt,ho.trigger=Tt,ho.xhr=fn,ho.TextTrack=bn,ho.AudioTrack=Tn,ho.VideoTrack=Cn,["isEl","isTextNode","createEl","hasClass","addClass","removeClass","toggleClass","setAttributes","getAttributes","emptyEl","appendContent","insertContent"].forEach(function(t){ho[t]=function(){return v.warn("videojs."+t+"() is deprecated; use videojs.dom."+t+"() instead"),st[t].apply(null,arguments)}}),ho.computedStyle=x,ho.dom=st,ho.url=rn,ho}); \ No newline at end of file
diff --git a/assets/netcut/lib/videojs/alt/video.core.novtt.js b/assets/netcut/lib/videojs/alt/video.core.novtt.js
new file mode 100644
index 0000000..1f7352b
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video.core.novtt.js
@@ -0,0 +1,25215 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global.videojs = factory());
+}(this, (function () {
+ var version = "7.2.4";
+
+ var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+ function createCommonjsModule(fn, module) {
+ return module = { exports: {} }, fn(module, module.exports), module.exports;
+ }
+
+ var win;
+
+ if (typeof window !== "undefined") {
+ win = window;
+ } else if (typeof commonjsGlobal !== "undefined") {
+ win = commonjsGlobal;
+ } else if (typeof self !== "undefined") {
+ win = self;
+ } else {
+ win = {};
+ }
+
+ var window_1 = win;
+
+ var empty = {};
+
+ var empty$1 = /*#__PURE__*/Object.freeze({
+ default: empty
+ });
+
+ var minDoc = ( empty$1 && empty ) || empty$1;
+
+ var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
+
+ var doccy;
+
+ if (typeof document !== 'undefined') {
+ doccy = document;
+ } else {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
+
+ if (!doccy) {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
+ }
+ }
+
+ var document_1 = doccy;
+
+ /**
+ * @file log.js
+ * @module log
+ */
+
+ var log = void 0;
+
+ // This is the private tracking variable for logging level.
+ var level = 'info';
+
+ // This is the private tracking variable for the logging history.
+ var history = [];
+
+ /**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+ var logByType = function logByType(type, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp('^(' + lvl + ')$');
+
+ if (type !== 'log') {
+
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ }
+
+ // Add a clone of the args at this point to history.
+ if (history) {
+ history.push([].concat(args));
+ }
+
+ // Add console prefix after adding to history.
+ args.unshift('VIDEOJS:');
+
+ // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+ if (!window_1.console) {
+ return;
+ }
+
+ // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+ var fn = window_1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window_1.console.info || window_1.console.log;
+ }
+
+ // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window_1.console, args);
+ };
+
+ /**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * @class
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+ log = function log() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', args);
+ };
+
+ /**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+ log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+ };
+
+ /**
+ * Get or set the current logging level. If a string matching a key from
+ * {@link log.levels} is provided, acts as a setter. Regardless of argument,
+ * returns the current logging level.
+ *
+ * @param {string} [lvl]
+ * Pass to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+ log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error('"' + lvl + '" in not a valid log level');
+ }
+ level = lvl;
+ }
+ return level;
+ };
+
+ /**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+ log.history = function () {
+ return history ? [].concat(history) : [];
+ };
+
+ /**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+ log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+ };
+
+ /**
+ * Disable history tracking if it is currently enabled.
+ */
+ log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+ };
+
+ /**
+ * Enable history tracking if it is currently disabled.
+ */
+ log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+ };
+
+ /**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+ log.error = function () {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', args);
+ };
+
+ /**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+ log.warn = function () {
+ for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', args);
+ };
+
+ /**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+ log.debug = function () {
+ for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', args);
+ };
+
+ var log$1 = log;
+
+ function clean(s) {
+ return s.replace(/\n\r?\s*/g, '');
+ }
+
+ var tsml = function tsml(sa) {
+ var s = '',
+ i = 0;
+
+ for (; i < arguments.length; i++) {
+ s += clean(sa[i]) + (arguments[i + 1] || '');
+ }return s;
+ };
+
+ var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+ };
+
+ var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var inherits = function (subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn = function (self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+ };
+
+ var taggedTemplateLiteralLoose = function (strings, raw) {
+ strings.raw = raw;
+ return strings;
+ };
+
+ /**
+ * @file obj.js
+ * @module obj
+ */
+
+ /**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+ /**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+ var toString = Object.prototype.toString;
+
+ /**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+ var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+ };
+
+ /**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+ function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+ }
+
+ /**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+ function reduce(object, fn) {
+ var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+ }
+
+ /**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+ function assign(target) {
+ for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+
+ return target;
+ }
+
+ /**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isObject(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';
+ }
+
+ /**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+ }
+
+ /**
+ * @file computed-style.js
+ * @module computed-style
+ */
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to
+ * make sure that the player doesn't break in these cases.
+ *
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ *
+ * @static
+ * @const
+ */
+ function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var cs = window_1.getComputedStyle(el);
+
+ return cs ? cs[prop] : '';
+ }
+
+ return '';
+ }
+
+ var _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);
+
+ /**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * - True if the string is non-blank
+ * - False otherwise
+ *
+ */
+ function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+ }
+
+ /**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ *
+ */
+ function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+ }
+
+ /**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+ function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+ }
+
+ /**
+ * Whether the current DOM interface appears to be real.
+ *
+ * @return {Boolean}
+ */
+ function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document_1 === window_1.document;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The thing to check
+ *
+ * @return {boolean}
+ * - True if it is a DOM element
+ * - False otherwise
+ */
+ function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+ }
+
+ /**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ *
+ */
+ function isInFrame() {
+
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window_1.parent !== window_1.self;
+ } catch (x) {
+ return true;
+ }
+ }
+
+ /**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+ function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document_1[method](null);
+ }
+ if (isNonBlankString(context)) {
+ context = document_1.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document_1;
+
+ return ctx[method] && ctx[method](selector);
+ };
+ }
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {String|Element|TextNode|Array|Function} [content]
+ * Contents for the element (see: {@link dom:normalizeContent})
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ function createEl() {
+ var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var content = arguments[3];
+
+ var el = document_1.createElement(tagName);
+
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName];
+
+ // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log$1.warn(tsml(_templateObject, propName, val));
+ el.setAttribute(propName, val);
+
+ // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+ }
+
+ /**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+ function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+ return el;
+ }
+
+ /**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+ function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+ }
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * - True if the element had the class
+ * - False otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+ function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+ return classRegExp(classToCheck).test(element.className);
+ }
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The dom element with the added class name.
+ */
+ function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd);
+
+ // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+ }
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The dom element with class name removed.
+ */
+ function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+ }
+
+ /**
+ * The callback definition for toggleElClass.
+ *
+ * @callback Dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * - If true the `classToToggle` will get added to `element`.
+ * - If false the `classToToggle` will get removed from `element`.
+ * - If undefined this callback will be ignored
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled
+ *
+ * @param {boolean|PredicateCallback} [predicate]
+ * See the return value for {@link Dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+ function toggleClass(element, classToToggle, predicate) {
+
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ }
+
+ // If the necessary class operation matches the current state of the
+ // element, no action is required.
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+ }
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+ function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+ }
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element.
+ */
+ function getAttributes(tag) {
+ var obj = {};
+
+ // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value;
+
+ // check for known booleans
+ // the matching element property will return a value for typeof
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+ }
+
+ /**
+ * Get the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to get the value of
+ *
+ * @return {string}
+ * value of the attribute
+ */
+ function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+ }
+
+ /**
+ * Set the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to set
+ *
+ * @param {string} value
+ * Value to set the attribute to
+ */
+ function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+ }
+
+ /**
+ * Remove an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to remove
+ */
+ function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+ }
+
+ /**
+ * Attempt to block the ability to select text while dragging controls
+ */
+ function blockTextSelection() {
+ document_1.body.focus();
+ document_1.onselectstart = function () {
+ return false;
+ };
+ }
+
+ /**
+ * Turn off text selection blocking
+ */
+ function unblockTextSelection() {
+ document_1.onselectstart = function () {
+ return true;
+ };
+ }
+
+ /**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain
+ */
+ function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+ }
+
+ /**
+ * The postion of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left
+ *
+ * @property {number} top
+ * Pixels on top
+ */
+
+ /**
+ * Offset Left.
+ * getBoundingClientRect technique from
+ * John Resig
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+ function findPosition(el) {
+ var box = void 0;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document_1.documentElement;
+ var body = document_1.body;
+
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window_1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window_1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop;
+
+ // Android sometimes returns slightly off decimal values, so need to round
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+ }
+
+ /**
+ * x and y coordinates for a dom element or mouse pointer
+ *
+ * @typedef {Object} Dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+ /**
+ * Get pointer position in element
+ * Returns an object with x and y coordinates.
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {Dom~Coordinates}
+ * A Coordinates object corresponding to the mouse position.
+ *
+ */
+ function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+
+ return position;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * - True if it is a text node
+ * - False otherwise
+ */
+ function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+ }
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+ function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+ return el;
+ }
+
+ /**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but protects
+ * from falling into the trap of simply writing to `innerHTML`, which is
+ * an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * - String: Normalized into a text node.
+ * - Element/TextNode: Passed through.
+ * - Array: A one-dimensional array of strings, elements, nodes, or functions
+ * (which return single strings, elements, or nodes).
+ * - Function: If the sole argument, is expected to produce a string, element,
+ * node, or array as defined above.
+ *
+ * @return {Array}
+ * All of the content that was passed in normalized.
+ */
+ function normalizeContent(content) {
+
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ }
+
+ // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document_1.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+ }
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+ function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+ }
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ *
+ */
+ function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+ }
+
+ /**
+ * Check if event was a single left click
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {boolean}
+ * - True if a left click
+ * - False if not a left click
+ */
+ function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+ var $ = createQuerier('querySelector');
+
+ /**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none were found.
+ *
+ */
+ var $$ = createQuerier('querySelectorAll');
+
+ var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+ });
+
+ /**
+ * @file guid.js
+ * @module guid
+ */
+
+ /**
+ * Unique ID for an element or function
+ * @type {Number}
+ */
+ var _guid = 1;
+
+ /**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+ function newGUID() {
+ return _guid++;
+ }
+
+ /**
+ * @file dom-data.js
+ * @module dom-data
+ */
+
+ /**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+ var elData = {};
+
+ /*
+ * Unique attribute name to store an element's guid in
+ *
+ * @type {String}
+ * @constant
+ * @private
+ */
+ var elIdAttr = 'vdata' + new Date().getTime();
+
+ /**
+ * Returns the cache object where data for an element is stored
+ *
+ * @param {Element} el
+ * Element to store data for.
+ *
+ * @return {Object}
+ * The cache object for that el that was passed in.
+ */
+ function getData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ id = el[elIdAttr] = newGUID();
+ }
+
+ if (!elData[id]) {
+ elData[id] = {};
+ }
+
+ return elData[id];
+ }
+
+ /**
+ * Returns whether or not an element has cached data
+ *
+ * @param {Element} el
+ * Check if this element has cached data.
+ *
+ * @return {boolean}
+ * - True if the DOM element has cached data.
+ * - False otherwise.
+ */
+ function hasData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return false;
+ }
+
+ return !!Object.getOwnPropertyNames(elData[id]).length;
+ }
+
+ /**
+ * Delete data for the element from the cache and the guid attr from getElementById
+ *
+ * @param {Element} el
+ * Remove cached data for this element.
+ */
+ function removeData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return;
+ }
+
+ // Remove all stored data
+ delete elData[id];
+
+ // Remove the elIdAttr property from the DOM node
+ try {
+ delete el[elIdAttr];
+ } catch (e) {
+ if (el.removeAttribute) {
+ el.removeAttribute(elIdAttr);
+ } else {
+ // IE doesn't appear to support removeAttribute on the document element
+ el[elIdAttr] = null;
+ }
+ }
+ }
+
+ /**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @module events
+ */
+
+ /**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+ function _cleanUpEvents(elem, type) {
+ var data = getData(elem);
+
+ // Remove the events of a particular type if there are none left
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type];
+ // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+
+ // Remove the meta-handler from the element
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ }
+
+ // Remove the events object if there are no types left
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ }
+
+ // Finally remove the element data if there is no data left
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ removeData(elem);
+ }
+ }
+
+ /**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+ function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+ }
+
+ /**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+ function fixEvent(event) {
+
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ }
+
+ // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window_1.event;
+
+ event = {};
+ // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ }
+
+ // The event occurred on this element
+ if (!event.target) {
+ event.target = event.srcElement || document_1;
+ }
+
+ // Handle which other element the event is related to
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ }
+
+ // Stop the default browser action
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false;
+
+ // Stop the event from bubbling
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse;
+
+ // Stop the event from bubbling and executing other handlers
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse;
+
+ // Handle mouse position
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document_1.documentElement;
+ var body = document_1.body;
+
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ }
+
+ // Handle key presses
+ event.which = event.charCode || event.keyCode;
+
+ // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+ if (event.button !== null && event.button !== undefined) {
+
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ }
+
+ // Returns fixed-up instance
+ return event;
+ }
+
+ /**
+ * Whether passive event listeners are supported
+ */
+ var _supportsPassive = false;
+
+ (function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+
+ window_1.addEventListener('test', null, opts);
+ window_1.removeEventListener('test', null, opts);
+ } catch (e) {
+ // disregard
+ }
+ })();
+
+ /**
+ * Touch events Chrome expects to be passive
+ */
+ var passiveEvents = ['touchstart', 'touchmove'];
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+ function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ var data = getData(elem);
+
+ // We need a place to store all our handler data
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log$1.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = { passive: true };
+ }
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+ }
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+ function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!hasData(elem)) {
+ return;
+ }
+
+ var data = getData(elem);
+
+ // If no events exist, nothing to unbind
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ }
+
+ // Utility function
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+ _cleanUpEvents(el, t);
+ };
+
+ // Are we removing all bound events?
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+ return;
+ }
+
+ var handlers = data.handlers[type];
+
+ // If no handlers exist, nothing to unbind
+ if (!handlers) {
+ return;
+ }
+
+ // If no listener was provided, remove all listeners for type
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ }
+
+ // We're only removing a single handler
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+ }
+
+ /**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * - Returns the opposite of `defaultPrevented` if default was prevented
+ * - Otherwise returns undefined
+ */
+ function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = hasData(elem) ? getData(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument;
+ // type = event.type || event,
+ // handler;
+
+ // If an event name was passed as a string, creates an event out of it
+ if (typeof event === 'string') {
+ event = { type: event, target: elem };
+ } else if (!event.target) {
+ event.target = elem;
+ }
+
+ // Normalizes the event properties.
+ event = fixEvent(event);
+
+ // If the passed element has a dispatcher, executes the established handlers.
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ }
+
+ // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash);
+
+ // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented) {
+ var targetData = getData(event.target);
+
+ // Checks if the target has a default action for this event.
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true;
+ // Executes the default action.
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ }
+ // Re-enables event dispatching.
+ targetData.disabled = false;
+ }
+ }
+
+ // Inform the triggerer if the default was prevented by returning false
+ return !event.defaultPrevented;
+ }
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event Listener function
+ */
+ function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ };
+
+ // copy the guid to the new function so it can removed using the original function's ID
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+ }
+
+ var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one
+ });
+
+ /**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+
+ var _windowLoaded = false;
+ var videojs = void 0;
+
+ /**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+ var autoSetup = function autoSetup() {
+
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document_1.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document_1.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document_1.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs);
+
+ // Check if any media elements exist
+ if (mediaEls && mediaEls.length > 0) {
+
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i];
+
+ // Check if element exists, has getAttribute func.
+ if (mediaEl && mediaEl.getAttribute) {
+
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup');
+
+ // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ }
+
+ // If getAttribute isn't defined, we need to wait for the DOM.
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ }
+
+ // No videos were found, so keep looping unless page is finished loading.
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+ };
+
+ /**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+ function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window_1.setTimeout(autoSetup, wait);
+ }
+
+ if (isReal() && document_1.readyState === 'complete') {
+ _windowLoaded = true;
+ } else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * @listens load
+ */
+ one(window_1, 'load', function () {
+ _windowLoaded = true;
+ });
+ }
+
+ /**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+
+ /**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ var createStyleElement = function createStyleElement(className) {
+ var style = document_1.createElement('style');
+
+ style.className = className;
+
+ return style;
+ };
+
+ /**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+ var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+ };
+
+ /**
+ * @file fn.js
+ * @module fn
+ */
+
+ /**
+ * Bind (a.k.a proxy or Context). A simple method for changing the context of a function
+ * It also stores a unique id on the function so it can be easily removed from events.
+ *
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+ var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ // Create the new function that changes the context
+ var bound = function bound() {
+ return fn.apply(context, arguments);
+ };
+
+ // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+
+ return bound;
+ };
+
+ /**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {Number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+ var throttle = function throttle(fn, wait) {
+ var last = Date.now();
+
+ var throttled = function throttled() {
+ var now = Date.now();
+
+ if (now - last >= wait) {
+ fn.apply(undefined, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+ };
+
+ /**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+ var debounce = function debounce(func, wait, immediate) {
+ var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window_1;
+
+ var timeout = void 0;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+
+ /* eslint-disable consistent-this */
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+ debounced.cancel = cancel;
+
+ return debounced;
+ };
+
+ /**
+ * @file src/js/event-target.js
+ */
+
+ /**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+ var EventTarget = function EventTarget() {};
+
+ /**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+ /**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+ /**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+ EventTarget.prototype.allowedEvents_ = {};
+
+ /**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+ EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ on(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+ EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+
+ /**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+ EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+ };
+
+ /**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+ EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+
+ /**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+ EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener alialing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ one(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+ EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event;
+
+ if (typeof event === 'string') {
+ event = { type: type };
+ }
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+ };
+
+ /**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+ EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+
+ var EVENT_MAP = void 0;
+
+ EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+
+ map.delete(type);
+ window_1.clearTimeout(oldTimeout);
+
+ var timeout = window_1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP.delete(_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+
+ map.set(type, timeout);
+ };
+
+ /**
+ * @file mixins/evented.js
+ * @module evented
+ */
+
+ /**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+ var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+ };
+
+ /**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+ var isValidEventType = function isValidEventType(type) {
+ return (
+ // The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+ var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+ var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+ var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+ };
+
+ /**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+ var normalizeListenArgs = function normalizeListenArgs(self, args) {
+
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target = void 0;
+ var type = void 0;
+ var listener = void 0;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_;
+
+ // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ listener = bind(self, listener);
+
+ return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };
+ };
+
+ /**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+ var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+ };
+
+ /**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+ var EventedMixin = {
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on$$1() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener);
+
+ // If this object is listening to another evented object.
+ if (!isTargetingSelf) {
+
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ };
+
+ // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+ removeListenerOnDispose.guid = listener.guid;
+
+ // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ removeRemoverOnTargetDispose.guid = listener.guid;
+
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one$$1() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener;
+
+ // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener);
+
+ // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ _this2.off(target, type, wrapper);
+ listener.apply(null, largs);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$$1(targetOrType, typeOrListener, listener) {
+
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener);
+
+ // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener;
+
+ // Fail fast and in a meaningful way!
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ // Ensure there's at least a guid, even if the function hasn't been used
+ listener = bind(this, listener);
+
+ // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @returns {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+ };
+
+ /**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {String} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+ function evented(target) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var eventBusKey = options.eventBusKey;
+
+ // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error('The eventBusKey "' + eventBusKey + '" does not refer to an element.');
+ }
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });
+ }
+
+ assign(target, EventedMixin);
+
+ // When any evented object is disposed, it removes all its listeners.
+ target.on('dispose', function () {
+ target.off();
+ window_1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+
+ return target;
+ }
+
+ /**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+
+ /**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+ var StatefulMixin = {
+
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @returns {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes = void 0;
+
+ each(stateUpdates, function (value, key) {
+
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ });
+
+ // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+ if (changes && isEvented(this)) {
+
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+ };
+
+ /**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @returns {Object}
+ * Returns the `target`.
+ */
+ function stateful(target, defaultState) {
+ assign(target, StatefulMixin);
+
+ // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+ target.state = assign({}, target.state, defaultState);
+
+ // Auto-bind the `handleStateChanged` method of the target object if it exists.
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+ }
+
+ /**
+ * @file to-title-case.js
+ * @module to-title-case
+ */
+
+ /**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+ function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.charAt(0).toUpperCase() + string.slice(1);
+ }
+
+ /**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+ function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+ }
+
+ /**
+ * @file merge-options.js
+ * @module merge-options
+ */
+
+ /**
+ * Deep-merge one or more options objects, recursively merging **only** plain
+ * object properties.
+ *
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @returns {Object}
+ * A new object that is the merged result of all sources.
+ */
+ function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+
+ return result;
+ }
+
+ /**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+
+ /**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+ var Component = function () {
+
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ classCallCheck(this, Component);
+
+
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ }
+
+ // Make a copy of prototype.options_ to protect against overriding defaults
+ this.options_ = mergeOptions({}, this.options_);
+
+ // Updated options with supplied options
+ options = this.options_ = mergeOptions(this.options_, options);
+
+ // Get ID from options or options element if one is supplied
+ this.id_ = options.id || options.el && options.el.id;
+
+ // If there was no ID from the options, generate one
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+
+ this.id_ = id + '_component_' + newGUID();
+ }
+
+ this.name_ = options.name || null;
+
+ // Create element if one wasn't provided in options
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ }
+
+ // if evented is anything except false, we want to mixin in evented
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, { eventBusKey: this.el_ ? 'el_' : null });
+ }
+ stateful(this, this.constructor.defaultState);
+
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+
+ // Add any child components in options
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready);
+ // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Component.prototype.dispose = function dispose() {
+
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({ type: 'dispose', bubbles: false });
+
+ // Dispose all children.
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ }
+
+ // Delete child references
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ removeData(this.el_);
+ this.el_ = null;
+ }
+
+ // remove reference to the player after disposing of the element
+ this.player_ = null;
+ };
+
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+
+
+ Component.prototype.player = function player() {
+ return this.player_;
+ };
+
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Component.prototype.options = function options(obj) {
+ log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');
+
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ };
+
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+
+
+ Component.prototype.el = function el() {
+ return this.el_;
+ };
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ };
+
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+
+
+ Component.prototype.localize = function localize(string, tokens) {
+ var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ };
+
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+
+
+ Component.prototype.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ };
+
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+
+
+ Component.prototype.id = function id() {
+ return this.id_;
+ };
+
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+
+
+ Component.prototype.name = function name() {
+ return this.name_;
+ };
+
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+
+
+ Component.prototype.children = function children() {
+ return this.children_;
+ };
+
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+
+
+ Component.prototype.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ };
+
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+
+
+ Component.prototype.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ return this.childNameIndex_[name];
+ };
+
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+
+
+ Component.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;
+
+ var component = void 0;
+ var componentName = void 0;
+
+ // If child is a string, create component with options
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+
+ var componentClassName = options.componentClass || componentName;
+
+ // Set name through options
+ options.name = componentName;
+
+ // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error('Component ' + componentClassName + ' does not exist');
+ }
+
+ // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options);
+
+ // child is a component instance
+ } else {
+ component = child;
+ }
+
+ this.children_.splice(index, 0, component);
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ }
+
+ // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ }
+
+ // Add the UI object's element to the container div (box)
+ // Having an element is not required
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+
+ this.contentEl().insertBefore(component.el(), refNode);
+ }
+
+ // Return so it can stored on parent object if desired.
+ return component;
+ };
+
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+
+
+ Component.prototype.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[component.name()] = null;
+
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ };
+
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+
+
+ Component.prototype.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts;
+
+ // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ }
+
+ // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+ if (opts === false) {
+ return;
+ }
+
+ // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+ if (opts === true) {
+ opts = {};
+ }
+
+ // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+ opts.playerOptions = _this.options_.playerOptions;
+
+ // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ };
+
+ // Allow for an array of children details to passed in the options
+ var workingChildren = void 0;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren
+ // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name = void 0;
+ var opts = void 0;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return { name: name, opts: opts };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ };
+
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+
+
+ Component.prototype.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ };
+
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+
+
+ Component.prototype.ready = function ready(fn) {
+ var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ };
+
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+
+
+ Component.prototype.triggerReady = function triggerReady() {
+ this.isReady_ = true;
+
+ // Ensure ready is triggered asynchronously
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_;
+
+ // Reset Ready Queue
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ }
+
+ // Allow for using event listeners also
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ready');
+ }, 1);
+ };
+
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$ = function $$$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ };
+
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$$ = function $$$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ };
+
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+
+
+ Component.prototype.hasClass = function hasClass$$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ };
+
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+
+
+ Component.prototype.addClass = function addClass$$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ };
+
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+
+
+ Component.prototype.removeClass = function removeClass$$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ };
+
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+
+
+ Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ };
+
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+
+
+ Component.prototype.show = function show() {
+ this.removeClass('vjs-hidden');
+ };
+
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+
+
+ Component.prototype.hide = function hide() {
+ this.addClass('vjs-hidden');
+ };
+
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ };
+
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ };
+
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+
+
+ Component.prototype.getAttribute = function getAttribute$$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+
+
+ Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ };
+
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+
+
+ Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ };
+
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ };
+
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+
+
+ Component.prototype.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ };
+
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+
+
+ Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ }
+
+ // Check if using css width/height (% or px) and adjust
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ }
+
+ // skipListeners allows us to avoid triggering the resize event when setting both width and height
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ }
+
+ // Not setting a value, so getting it
+ // Make sure element exists
+ if (!this.el_) {
+ return 0;
+ }
+
+ // Get dimension value from style
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ }
+
+ // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ };
+
+ /**
+ * Get the width or the height of the `Component` elements computed style. Uses
+ * `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+
+
+ Component.prototype.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var computedStyle = window_1.getComputedStyle(this.el_);
+
+ computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];
+ }
+
+ // remove 'px' from variable and parse as integer
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+ // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+ if (computedWidthOrHeight === 0) {
+ var rule = 'offset' + toTitleCase(widthOrHeight);
+
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ };
+
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains width and height values of the `Component`s
+ * computed style.
+ *
+ * @return {Component~DimensionObject}
+ * The dimensions of the components element
+ */
+
+
+ Component.prototype.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ };
+
+ /**
+ * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} width
+ * The width of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ };
+
+ /**
+ * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} height
+ * The height of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ };
+
+ /**
+ * Set the focus to this component
+ */
+
+
+ Component.prototype.focus = function focus() {
+ this.el_.focus();
+ };
+
+ /**
+ * Remove the focus from this component
+ */
+
+
+ Component.prototype.blur = function blur() {
+ this.el_.blur();
+ };
+
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+
+
+ Component.prototype.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null;
+
+ // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+ var tapMovementThreshold = 10;
+
+ // The maximum length a touch can be while still being considered a tap
+ var touchTimeThreshold = 200;
+
+ var couldBeTap = void 0;
+
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ };
+ // Record start time so we can detect a tap vs. "touch and hold"
+ touchStart = new Date().getTime();
+ // Reset couldBeTap tracking
+ couldBeTap = true;
+ }
+ });
+
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ };
+
+ // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap);
+
+ // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+ this.on('touchend', function (event) {
+ firstTouch = null;
+ // Proceed only if the touchmove/leave/cancel event didn't happen
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = new Date().getTime() - touchStart;
+
+ // Make sure the touch was less than the threshold to be considered a tap
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+ this.trigger('tap');
+ // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ };
+
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+
+
+ Component.prototype.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ }
+
+ // listener for reporting that the user is active
+ var report = bind(this.player(), this.player().reportUserActivity);
+
+ var touchHolding = void 0;
+
+ this.on('touchstart', function () {
+ report();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(touchHolding);
+ // report at the same interval as activityCheck
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report();
+ // stop the interval that maintains activity if the touch is holding
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ };
+
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+
+
+ Component.prototype.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId, disposeFn;
+
+ fn = bind(this, fn);
+
+ timeoutId = window_1.setTimeout(function () {
+ _this2.off('dispose', disposeFn);
+ fn();
+ }, timeout);
+
+ disposeFn = function disposeFn() {
+ return _this2.clearTimeout(timeoutId);
+ };
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.on('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+
+
+ Component.prototype.clearTimeout = function clearTimeout(timeoutId) {
+ window_1.clearTimeout(timeoutId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.off('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+
+
+ Component.prototype.setInterval = function setInterval(fn, interval) {
+ var _this3 = this;
+
+ fn = bind(this, fn);
+
+ var intervalId = window_1.setInterval(fn, interval);
+
+ var disposeFn = function disposeFn() {
+ return _this3.clearInterval(intervalId);
+ };
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.on('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+
+
+ Component.prototype.clearInterval = function clearInterval(intervalId) {
+ window_1.clearInterval(intervalId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.off('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+
+
+ Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this4 = this;
+
+ // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+ var id, disposeFn;
+
+ if (this.supportsRaf_) {
+ fn = bind(this, fn);
+
+ id = window_1.requestAnimationFrame(function () {
+ _this4.off('dispose', disposeFn);
+ fn();
+ });
+
+ disposeFn = function disposeFn() {
+ return _this4.cancelAnimationFrame(id);
+ };
+
+ disposeFn.guid = 'vjs-raf-' + id;
+ this.on('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.setTimeout(fn, 1000 / 60);
+ };
+
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+
+
+ Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ if (this.supportsRaf_) {
+ window_1.cancelAnimationFrame(id);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-raf-' + id;
+
+ this.off('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.clearTimeout(id);
+ };
+
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error('Illegal component name, "' + name + '"; must be a non-empty string.');
+ }
+
+ var Tech = Component.getComponent('Tech');
+
+ // We need to make sure this check is only done if Tech has been registered.
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason = void 0;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error('Illegal component, "' + name + '"; ' + reason + '.');
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players);
+
+ // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+
+ return ComponentToRegister;
+ };
+
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+
+
+ Component.getComponent = function getComponent(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Component.components_ && Component.components_[name]) {
+ return Component.components_[name];
+ }
+ };
+
+ return Component;
+ }();
+
+ /**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+ Component.prototype.supportsRaf_ = typeof window_1.requestAnimationFrame === 'function' && typeof window_1.cancelAnimationFrame === 'function';
+
+ Component.registerComponent('Component', Component);
+
+ /**
+ * @file browser.js
+ * @module browser
+ */
+
+ var USER_AGENT = window_1.navigator && window_1.navigator.userAgent || '';
+ var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+ var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+
+ /*
+ * Device is an iPhone
+ *
+ * @type {Boolean}
+ * @constant
+ * @private
+ */
+ var IS_IPAD = /iPad/i.test(USER_AGENT);
+
+ // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+ // to identify iPhones, we need to exclude iPads.
+ // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+ var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+ var IS_IPOD = /iPod/i.test(USER_AGENT);
+ var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+ var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+ return null;
+ }();
+
+ var IS_ANDROID = /Android/i.test(USER_AGENT);
+ var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+ return null;
+ }();
+
+ var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+
+ var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+ var IS_EDGE = /Edge/i.test(USER_AGENT);
+ var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+ var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+ return null;
+ }();
+ var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+ }();
+
+ var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+ var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+ var TOUCH_ENABLED = isReal() && ('ontouchstart' in window_1 || window_1.navigator.maxTouchPoints || window_1.DocumentTouch && window_1.document instanceof window_1.DocumentTouch);
+
+ var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ TOUCH_ENABLED: TOUCH_ENABLED
+ });
+
+ /**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+ /**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @function time-ranges:indexFunction
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @depricated index must be set to a value, in the future this will throw an error.
+ */
+
+ /**
+ * An object that contains ranges of time for various reasons.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this Object
+ *
+ * @property {time-ranges:indexFunction} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {time-ranges:indexFunction} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+ /**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+ function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error('Failed to execute \'' + fnName + '\' on \'TimeRanges\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');
+ }
+ }
+
+ /**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ *
+ * @depricated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+ function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+ }
+
+ /**
+ * Create a time range object given ranges of time.
+ *
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+ function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+ }
+
+ /**
+ * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.
+ *
+ * @param {number|Array} start
+ * The start of a single range or an array of ranges
+ *
+ * @param {number} end
+ * The end of a single range.
+ *
+ * @private
+ */
+ function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+ return createTimeRangesObj([[start, end]]);
+ }
+
+ /**
+ * @file buffer.js
+ * @module buffer
+ */
+
+ /**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+ function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start = void 0;
+ var end = void 0;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i);
+
+ // buffered end can be bigger than duration by a very small fraction
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+ }
+
+ /**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+
+ /**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+ var FullscreenApi = {};
+
+ // browser API methods
+ var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
+ // WebKit
+ ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Old WebKit (Safari 5.1)
+ ['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Mozilla
+ ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
+ // Microsoft
+ ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];
+
+ var specApi = apiMap[0];
+ var browserApi = void 0;
+
+ // determine the supported set of functions
+ for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document_1) {
+ browserApi = apiMap[i];
+ break;
+ }
+ }
+
+ // map the browser API names to the spec API names
+ if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+ }
+
+ /**
+ * @file media-error.js
+ */
+
+ /**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+ function MediaError(value) {
+
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+ }
+
+ /**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+ MediaError.prototype.code = 0;
+
+ /**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+ MediaError.prototype.message = '';
+
+ /**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+ MediaError.prototype.status = null;
+
+ /**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_CUSTOM
+ * @property {string} 2 - MEDIA_ERR_ABORTED
+ * @property {string} 3 - MEDIA_ERR_NETWORK
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+ MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+ /**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+ MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+ };
+
+ // Add types as properties on MediaError
+ // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+ for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum;
+ // values should be accessible on both the class and instance
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+ }
+
+ var tuple = SafeParseTuple;
+
+ function SafeParseTuple(obj, reviver) {
+ var json;
+ var error = null;
+
+ try {
+ json = JSON.parse(obj, reviver);
+ } catch (err) {
+ error = err;
+ }
+
+ return [error, json];
+ }
+
+ /**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {Boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+ function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+ }
+
+ /**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+ function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+ }
+
+ /**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+ /**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+ var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+
+ return ret;
+ };
+
+ /**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+ var textTracksToJson = function textTracksToJson(tech) {
+
+ var trackEls = tech.$$('track');
+
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+ return json;
+ });
+
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+ };
+
+ /**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+ var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+
+ return tech.textTracks();
+ };
+
+ var textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };
+
+ /**
+ * @file modal-dialog.js
+ */
+
+ var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+ var ESC = 27;
+
+ /**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+ var ModalDialog = function (_Component) {
+ inherits(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ classCallCheck(this, ModalDialog);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+ _this.content(_this.options_.content);
+
+ // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + '-content'
+ }, {
+ role: 'document'
+ });
+
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + '-description vjs-control-text',
+ id: _this.el().getAttribute('aria-describedby')
+ });
+
+ textContent(_this.descEl_, _this.description());
+ _this.el_.appendChild(_this.descEl_);
+ _this.el_.appendChild(_this.contentEl_);
+ return _this;
+ }
+
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ ModalDialog.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + '_description',
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ ModalDialog.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles `keydown` events on the document, looking for ESC, which closes
+ * the modal.
+ *
+ * @param {EventTarget~Event} e
+ * The keypress that triggered this event.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
+ if (e.which === ESC && this.closeable()) {
+ this.close();
+ }
+ };
+
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+
+
+ ModalDialog.prototype.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ };
+
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+
+
+ ModalDialog.prototype.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.');
+
+ // Append a universal closeability message if the modal is closeable.
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ };
+
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+
+
+ ModalDialog.prototype.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalopen');
+ this.opened_ = true;
+
+ // Fill content if the modal has never opened before and
+ // never been filled.
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ }
+
+ // If the player was playing, pause it and take note of its previously
+ // playing state.
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ if (this.closeable()) {
+ this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ // Hide controls and note if they were enabled.
+ this.hadControls_ = player.controls();
+ player.controls(false);
+
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ };
+
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+
+
+ ModalDialog.prototype.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+ return this.opened_;
+ };
+
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+
+
+ ModalDialog.prototype.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ if (this.closeable()) {
+ this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ };
+
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+
+
+ ModalDialog.prototype.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton');
+
+ // If this is being made closeable and has no close button, add one.
+ if (closeable && !close) {
+
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ }
+
+ // If this is being made uncloseable and has a close button, remove it.
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+ return this.closeable_;
+ };
+
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+
+
+ ModalDialog.prototype.fill = function fill() {
+ this.fillWith(this.content());
+ };
+
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+
+
+ ModalDialog.prototype.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true;
+
+ // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalfill');
+
+ // Re-inject the re-filled content element.
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ }
+
+ // make sure that the close button is last in the dialog DOM
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ };
+
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+
+
+ ModalDialog.prototype.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalempty');
+ };
+
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+
+
+ ModalDialog.prototype.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+ return this.content_;
+ };
+
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document_1.activeElement;
+ var playerEl = this.player_.el_;
+
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+
+ this.focus();
+
+ this.on(document_1, 'keydown', this.handleKeyDown);
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+
+ this.off(document_1, 'keydown', this.handleKeyDown);
+ };
+
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {
+ // exit early if it isn't a tab key
+ if (event.which !== 9) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex = void 0;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document_1.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ };
+
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window_1.HTMLAnchorElement || child instanceof window_1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window_1.HTMLInputElement || child instanceof window_1.HTMLSelectElement || child instanceof window_1.HTMLTextAreaElement || child instanceof window_1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window_1.HTMLIFrameElement || child instanceof window_1.HTMLObjectElement || child instanceof window_1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+ }(Component);
+
+ /**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+ };
+
+ Component.registerComponent('ModalDialog', ModalDialog);
+
+ /**
+ * @file track-list.js
+ */
+
+ /**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+ var TrackList = function (_EventTarget) {
+ inherits(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, TrackList);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ _this.tracks_ = [];
+
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(_this, 'length', {
+ get: function get$$1() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+ return _this;
+ }
+
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ TrackList.prototype.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.tracks_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate tracks
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+ this.trigger({
+ track: track,
+ type: 'addtrack'
+ });
+ }
+ };
+
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+
+
+ TrackList.prototype.removeTrack = function removeTrack(rtrack) {
+ var track = void 0;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+ this.trigger({
+ track: track,
+ type: 'removetrack'
+ });
+ };
+
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {String} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+
+
+ TrackList.prototype.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+ }(EventTarget);
+
+ /**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+ TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+ };
+
+ // emulate attribute EventHandler support to allow for feature detection
+ for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+ }
+
+ /**
+ * @file audio-track-list.js
+ */
+
+ /**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another audio track is enabled, disable it
+ list[i].enabled = false;
+ }
+ };
+
+ /**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+ var AudioTrackList = function (_TrackList) {
+ inherits(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, AudioTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+ return _this;
+ }
+
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ AudioTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('enabledchange', function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return AudioTrackList;
+ }(TrackList);
+
+ /**
+ * @file video-track-list.js
+ */
+
+ /**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another video track is enabled, disable it
+ list[i].selected = false;
+ }
+ };
+
+ /**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+ var VideoTrackList = function (_TrackList) {
+ inherits(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, VideoTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+ Object.defineProperty(_this, 'selectedIndex', {
+ get: function get$$1() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+ return -1;
+ },
+ set: function set$$1() {}
+ });
+ return _this;
+ }
+
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ VideoTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('selectedchange', function () {
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return VideoTrackList;
+ }(TrackList);
+
+ /**
+ * @file text-track-list.js
+ */
+
+ /**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+ var TextTrackList = function (_TrackList) {
+ inherits(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ classCallCheck(this, TextTrackList);
+ return possibleConstructorReturn(this, _TrackList.apply(this, arguments));
+ }
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ TextTrackList.prototype.addTrack = function addTrack(track) {
+ _TrackList.prototype.addTrack.call(this, track);
+
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+ track.addEventListener('modechange', bind(this, function () {
+ this.queueTrigger('change');
+ }));
+
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', bind(this, function () {
+ this.trigger('selectedlanguagechange');
+ }));
+ }
+ };
+
+ return TextTrackList;
+ }(TrackList);
+
+ /**
+ * @file html-track-element-list.js
+ */
+
+ /**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+ var HtmlTrackElementList = function () {
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList() {
+ var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, HtmlTrackElementList);
+
+ this.trackElements_ = [];
+
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.trackElements_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate elements
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ };
+
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_ = void 0;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+
+ break;
+ }
+ }
+
+ return trackElement_;
+ };
+
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ this.trackElements_.splice(i, 1);
+
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+ }();
+
+ /**
+ * @file text-track-cue-list.js
+ */
+
+ /**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+ /**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+ var TextTrackCueList = function () {
+
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ classCallCheck(this, TextTrackCueList);
+
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.length_;
+ }
+ });
+ }
+
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ TextTrackCueList.prototype.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get$$1() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ };
+
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+
+
+ TextTrackCueList.prototype.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+ }();
+
+ /**
+ * @file track-kinds.js
+ */
+
+ /**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+ var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+ };
+
+ /**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+ var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+ };
+
+ /**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+ var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+ };
+
+ /**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+ var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+ };
+
+ /**
+ * @file track.js
+ */
+
+ /**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+ var Track = function (_EventTarget) {
+ inherits(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, Track);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_this, key, {
+ get: function get$$1() {
+ return trackProps[key];
+ },
+ set: function set$$1() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+ return _this;
+ }
+
+ return Track;
+ }(EventTarget);
+
+ /**
+ * @file url.js
+ * @module url
+ */
+
+ /**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+ /**
+ * Resolve and parse the elements of a URL.
+ *
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+ var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+ // add the url to an anchor and let the browser parse the URL
+ var a = document_1.createElement('a');
+
+ a.href = url;
+
+ // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div = void 0;
+
+ if (addToBody) {
+ div = document_1.createElement('div');
+ div.innerHTML = '<a href="' + url + '"></a>';
+ a = div.firstChild;
+ // prevent the div from affecting layout
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document_1.body.appendChild(div);
+ }
+
+ // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ }
+
+ // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window_1.location.protocol;
+ }
+
+ if (addToBody) {
+ document_1.body.removeChild(div);
+ }
+
+ return details;
+ };
+
+ /**
+ * Get absolute version of relative URL. Used to tell flash correct URL.
+ *
+ *
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+ var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document_1.createElement('div');
+
+ div.innerHTML = '<a href="' + url + '">x</a>';
+ url = div.firstChild.href;
+ }
+
+ return url;
+ };
+
+ /**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @returns {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+ var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+ var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window_1.location;
+ var urlInfo = parseUrl(url);
+
+ // IE8 protocol relative urls will return ':' for protocol
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
+
+ // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+
+ return crossOrigin;
+ };
+
+ var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+ });
+
+ var isFunction_1 = isFunction;
+
+ var toString$1 = Object.prototype.toString;
+
+ function isFunction(fn) {
+ var string = toString$1.call(fn);
+ return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (
+ // IE8 and below
+ fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
+ }
+
+ var trim_1 = createCommonjsModule(function (module, exports) {
+ exports = module.exports = trim;
+
+ function trim(str) {
+ return str.replace(/^\s*|\s*$/g, '');
+ }
+
+ exports.left = function (str) {
+ return str.replace(/^\s*/, '');
+ };
+
+ exports.right = function (str) {
+ return str.replace(/\s*$/, '');
+ };
+ });
+ var trim_2 = trim_1.left;
+ var trim_3 = trim_1.right;
+
+ var forEach_1 = forEach;
+
+ var toString$2 = Object.prototype.toString;
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+ function forEach(list, iterator, context) {
+ if (!isFunction_1(iterator)) {
+ throw new TypeError('iterator must be a function');
+ }
+
+ if (arguments.length < 3) {
+ context = this;
+ }
+
+ if (toString$2.call(list) === '[object Array]') forEachArray(list, iterator, context);else if (typeof list === 'string') forEachString(list, iterator, context);else forEachObject(list, iterator, context);
+ }
+
+ function forEachArray(array, iterator, context) {
+ for (var i = 0, len = array.length; i < len; i++) {
+ if (hasOwnProperty.call(array, i)) {
+ iterator.call(context, array[i], i, array);
+ }
+ }
+ }
+
+ function forEachString(string, iterator, context) {
+ for (var i = 0, len = string.length; i < len; i++) {
+ // no such thing as a sparse string.
+ iterator.call(context, string.charAt(i), i, string);
+ }
+ }
+
+ function forEachObject(object, iterator, context) {
+ for (var k in object) {
+ if (hasOwnProperty.call(object, k)) {
+ iterator.call(context, object[k], k, object);
+ }
+ }
+ }
+
+ var isArray = function isArray(arg) {
+ return Object.prototype.toString.call(arg) === '[object Array]';
+ };
+
+ var parseHeaders = function parseHeaders(headers) {
+ if (!headers) return {};
+
+ var result = {};
+
+ forEach_1(trim_1(headers).split('\n'), function (row) {
+ var index = row.indexOf(':'),
+ key = trim_1(row.slice(0, index)).toLowerCase(),
+ value = trim_1(row.slice(index + 1));
+
+ if (typeof result[key] === 'undefined') {
+ result[key] = value;
+ } else if (isArray(result[key])) {
+ result[key].push(value);
+ } else {
+ result[key] = [result[key], value];
+ }
+ });
+
+ return result;
+ };
+
+ var immutable = extend;
+
+ var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+
+ function extend() {
+ var target = {};
+
+ for (var i = 0; i < arguments.length; i++) {
+ var source = arguments[i];
+
+ for (var key in source) {
+ if (hasOwnProperty$1.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+
+ return target;
+ }
+
+ var xhr = createXHR;
+ createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop;
+ createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
+
+ forEachArray$1(["get", "put", "post", "patch", "head", "delete"], function (method) {
+ createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
+ options = initParams(uri, options, callback);
+ options.method = method.toUpperCase();
+ return _createXHR(options);
+ };
+ });
+
+ function forEachArray$1(array, iterator) {
+ for (var i = 0; i < array.length; i++) {
+ iterator(array[i]);
+ }
+ }
+
+ function isEmpty(obj) {
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) return false;
+ }
+ return true;
+ }
+
+ function initParams(uri, options, callback) {
+ var params = uri;
+
+ if (isFunction_1(options)) {
+ callback = options;
+ if (typeof uri === "string") {
+ params = { uri: uri };
+ }
+ } else {
+ params = immutable(options, { uri: uri });
+ }
+
+ params.callback = callback;
+ return params;
+ }
+
+ function createXHR(uri, options, callback) {
+ options = initParams(uri, options, callback);
+ return _createXHR(options);
+ }
+
+ function _createXHR(options) {
+ if (typeof options.callback === "undefined") {
+ throw new Error("callback argument missing");
+ }
+
+ var called = false;
+ var callback = function cbOnce(err, response, body) {
+ if (!called) {
+ called = true;
+ options.callback(err, response, body);
+ }
+ };
+
+ function readystatechange() {
+ if (xhr.readyState === 4) {
+ setTimeout(loadFunc, 0);
+ }
+ }
+
+ function getBody() {
+ // Chrome with requestType=blob throws errors arround when even testing access to responseText
+ var body = undefined;
+
+ if (xhr.response) {
+ body = xhr.response;
+ } else {
+ body = xhr.responseText || getXml(xhr);
+ }
+
+ if (isJson) {
+ try {
+ body = JSON.parse(body);
+ } catch (e) {}
+ }
+
+ return body;
+ }
+
+ function errorFunc(evt) {
+ clearTimeout(timeoutTimer);
+ if (!(evt instanceof Error)) {
+ evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
+ }
+ evt.statusCode = 0;
+ return callback(evt, failureResponse);
+ }
+
+ // will load the data & process the response in a special response object
+ function loadFunc() {
+ if (aborted) return;
+ var status;
+ clearTimeout(timeoutTimer);
+ if (options.useXDR && xhr.status === undefined) {
+ //IE8 CORS GET successful response doesn't have a status field, but body is fine
+ status = 200;
+ } else {
+ status = xhr.status === 1223 ? 204 : xhr.status;
+ }
+ var response = failureResponse;
+ var err = null;
+
+ if (status !== 0) {
+ response = {
+ body: getBody(),
+ statusCode: status,
+ method: method,
+ headers: {},
+ url: uri,
+ rawRequest: xhr
+ };
+ if (xhr.getAllResponseHeaders) {
+ //remember xhr can in fact be XDR for CORS in IE
+ response.headers = parseHeaders(xhr.getAllResponseHeaders());
+ }
+ } else {
+ err = new Error("Internal XMLHttpRequest Error");
+ }
+ return callback(err, response, response.body);
+ }
+
+ var xhr = options.xhr || null;
+
+ if (!xhr) {
+ if (options.cors || options.useXDR) {
+ xhr = new createXHR.XDomainRequest();
+ } else {
+ xhr = new createXHR.XMLHttpRequest();
+ }
+ }
+
+ var key;
+ var aborted;
+ var uri = xhr.url = options.uri || options.url;
+ var method = xhr.method = options.method || "GET";
+ var body = options.body || options.data;
+ var headers = xhr.headers = options.headers || {};
+ var sync = !!options.sync;
+ var isJson = false;
+ var timeoutTimer;
+ var failureResponse = {
+ body: undefined,
+ headers: {},
+ statusCode: 0,
+ method: method,
+ url: uri,
+ rawRequest: xhr
+ };
+
+ if ("json" in options && options.json !== false) {
+ isJson = true;
+ headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
+ if (method !== "GET" && method !== "HEAD") {
+ headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
+ body = JSON.stringify(options.json === true ? body : options.json);
+ }
+ }
+
+ xhr.onreadystatechange = readystatechange;
+ xhr.onload = loadFunc;
+ xhr.onerror = errorFunc;
+ // IE9 must have onprogress be set to a unique function.
+ xhr.onprogress = function () {
+ // IE must die
+ };
+ xhr.onabort = function () {
+ aborted = true;
+ };
+ xhr.ontimeout = errorFunc;
+ xhr.open(method, uri, !sync, options.username, options.password);
+ //has to be after open
+ if (!sync) {
+ xhr.withCredentials = !!options.withCredentials;
+ }
+ // Cannot set timeout with sync request
+ // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
+ // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
+ if (!sync && options.timeout > 0) {
+ timeoutTimer = setTimeout(function () {
+ if (aborted) return;
+ aborted = true; //IE9 may still call readystatechange
+ xhr.abort("timeout");
+ var e = new Error("XMLHttpRequest timeout");
+ e.code = "ETIMEDOUT";
+ errorFunc(e);
+ }, options.timeout);
+ }
+
+ if (xhr.setRequestHeader) {
+ for (key in headers) {
+ if (headers.hasOwnProperty(key)) {
+ xhr.setRequestHeader(key, headers[key]);
+ }
+ }
+ } else if (options.headers && !isEmpty(options.headers)) {
+ throw new Error("Headers cannot be set on an XDomainRequest object");
+ }
+
+ if ("responseType" in options) {
+ xhr.responseType = options.responseType;
+ }
+
+ if ("beforeSend" in options && typeof options.beforeSend === "function") {
+ options.beforeSend(xhr);
+ }
+
+ // Microsoft Edge browser sends "undefined" when send is called with undefined value.
+ // XMLHttpRequest spec says to pass null as body to indicate no body
+ // See https://github.com/naugtur/xhr/issues/100.
+ xhr.send(body || null);
+
+ return xhr;
+ }
+
+ function getXml(xhr) {
+ if (xhr.responseType === "document") {
+ return xhr.responseXML;
+ }
+ var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
+ if (xhr.responseType === "" && !firefoxBugTakenEffect) {
+ return xhr.responseXML;
+ }
+
+ return null;
+ }
+
+ function noop() {}
+
+ /**
+ * @file text-track.js
+ */
+
+ /**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+ var parseCues = function parseCues(srcContent, track) {
+ var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, window_1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (window_1.console && window_1.console.groupCollapsed) {
+ window_1.console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return log$1.error(error);
+ });
+ if (window_1.console && window_1.console.groupEnd) {
+ window_1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+ };
+
+ /**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+ var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ xhr(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log$1.error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof window_1.WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ log$1.error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+ };
+
+ /**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+ var TextTrack = function (_Track) {
+ inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings.default;
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ _this.tech_ = settings.tech;
+
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_this, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_this, {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ default: {
+ get: function get$$1() {
+ return default_;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get$$1() {
+ return mode;
+ },
+ set: function set$$1(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+
+
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set$$1() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _this);
+ } else {
+ _this.loaded_ = true;
+ }
+ return _this;
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window_1.vttjs && !(originalCue instanceof window_1.vttjs.VTTCue)) {
+ cue = new window_1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+ }(Track);
+
+ /**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+ TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+ };
+
+ /**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+ var AudioTrack = function (_Track) {
+ inherits(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, AudioTrack);
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var enabled = false;
+
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'enabled', {
+ get: function get$$1() {
+ return enabled;
+ },
+ set: function set$$1(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+ enabled = newEnabled;
+
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enabledchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+ }(Track);
+
+ /**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+ var VideoTrack = function (_Track) {
+ inherits(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, VideoTrack);
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var selected = false;
+
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'selected', {
+ get: function get$$1() {
+ return selected;
+ },
+ set: function set$$1(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+ selected = newSelected;
+
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('selectedchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+ return _this;
+ }
+
+ return VideoTrack;
+ }(Track);
+
+ /**
+ * @file html-track-element.js
+ */
+
+ /**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+ var NONE = 0;
+ var LOADING = 1;
+ var LOADED = 2;
+ var ERROR = 3;
+
+ /**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+ var HTMLTrackElement = function (_EventTarget) {
+ inherits(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, HTMLTrackElement);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var readyState = void 0;
+
+ var track = new TextTrack(options);
+
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this.default = track.default;
+
+ Object.defineProperties(_this, {
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get$$1() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get$$1() {
+ return track;
+ }
+ }
+ });
+
+ readyState = NONE;
+
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _this
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+ }(EventTarget);
+
+ HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+ };
+
+ HTMLTrackElement.NONE = NONE;
+ HTMLTrackElement.LOADING = LOADING;
+ HTMLTrackElement.LOADED = LOADED;
+ HTMLTrackElement.ERROR = ERROR;
+
+ /*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+ var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+ };
+
+ Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + 'Tracks';
+ NORMAL[type].privateName = type + 'Tracks_';
+ });
+
+ var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+ };
+
+ var ALL = mergeOptions(NORMAL, REMOTE);
+
+ REMOTE.names = Object.keys(REMOTE);
+ NORMAL.names = Object.keys(NORMAL);
+ ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+ var vtt = {};
+
+ /**
+ * @file tech.js
+ */
+
+ /**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+ /**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+ function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new ALL.text.TrackClass(options);
+
+ tracks.addTrack(track);
+
+ return track;
+ }
+
+ /**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+ var Tech = function (_Component) {
+ inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+ classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ });
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ Tech.prototype.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ };
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this3[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+ list.removeTrack(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+ return createTimeRanges();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + 'trackchange');
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window_1.WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (document_1.body.contains(this.el())) {
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = document_1.createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ window_1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var _this7 = this;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.playsinline = function playsinline() {};
+
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPlaysinline = function setPlaysinline() {};
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks() {};
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+
+ Tech.techs_[name] = tech;
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (window_1 && window_1.videojs && window_1.videojs[name]) {
+ log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return window_1.videojs[name];
+ }
+ };
+
+ return Tech;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+ /**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+ /**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+ /**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresVolumeControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+ Tech.prototype.featuresMuteControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresFullscreenResize = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresPlaybackRate = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresProgressEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresSourceset = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresTimeupdateEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresNativeTextTracks = false;
+
+ /**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+ Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'seeking', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log$1.error('No source handler found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+ };
+
+ // The base Tech class needs to be registered as a Component. It is the only
+ // Tech that can be registered as a Component.
+ Component.registerComponent('Tech', Tech);
+ Tech.registerTech('Tech', Tech);
+
+ /**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+ Tech.defaultTechOrder_ = [];
+
+ var middlewares = {};
+ var middlewareInstances = {};
+
+ var TERMINATOR = {};
+
+ function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+ }
+
+ function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+ }
+
+ function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+ }
+
+ /**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ */
+ function get$1(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+ }
+
+ /**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ */
+ function set$1(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+ }
+
+ /**
+ * Takes the argument given to the player and calls the `call` version of the method
+ * on each middleware from left to right.
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ */
+ function mediate(middleware, tech, method) {
+ var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR;
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+
+ executeRight(middleware, method, returnValue, terminated);
+
+ return returnValue;
+ }
+
+ var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1
+ };
+
+ var allowedSetters = {
+ setCurrentTime: 1
+ };
+
+ var allowedMediators = {
+ play: 1,
+ pause: 1
+ };
+
+ function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+ }
+
+ function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+ }
+
+ function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+ }
+
+ /**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ */
+ function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+ }
+
+ function setSourceHelper() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
+ var next = arguments[2];
+ var player = arguments[3];
+ var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
+ var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+ var mwFactory = middleware[0],
+ mwrest = middleware.slice(1);
+
+ // if mwFactory is a string, then we're at a fork in the road
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+ // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory);
+
+ // if setSource isn't present, implicitly select this middleware
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ // we've succeeded, now we need to go deeper
+ acc.push(mw);
+
+ // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+ }
+
+ /**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+ var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL'
+ };
+
+ /**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+ var getMimetype = function getMimetype() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+
+ return mimetype || '';
+ };
+
+ /**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+ var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ }
+
+ // 1. check for the type in the `source` cache
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ }
+
+ // 2. see if we have this source in our `currentSources` cache
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ }
+
+ // 3. look for the src url in source elements and use the type there
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ }
+
+ // 4. finally fallback to our list of mime types based on src url extension
+ return getMimetype(src);
+ };
+
+ /**
+ * @module filter-source
+ */
+
+ /**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+ var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({ src: src })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+ };
+
+ /**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+ function fixSource(src) {
+ var mimetype = getMimetype(src.src);
+
+ if (!src.type && mimetype) {
+ src.type = mimetype;
+ }
+
+ return src;
+ }
+
+ /**
+ * @file loader.js
+ */
+
+ /**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+ var MediaLoader = function (_Component) {
+ inherits(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ classCallCheck(this, MediaLoader);
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({ createEl: false }, options);
+
+ // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the browser supports this technology
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+ return _this;
+ }
+
+ return MediaLoader;
+ }(Component);
+
+ Component.registerComponent('MediaLoader', MediaLoader);
+
+ /**
+ * @file clickable-component.js
+ */
+
+ /**
+ * Clickable Component which is clickable or keyboard actionable,
+ * but is not a native HTML button.
+ *
+ * @extends Component
+ */
+
+ var ClickableComponent = function (_Component) {
+ inherits(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ classCallCheck(this, ClickableComponent);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.emitTapEvents();
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createEl = function createEl$$1() {
+ var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');
+ }
+
+ // Add ARIA attributes for clickable element which is not a native HTML button
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ ClickableComponent.prototype.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a control text element on this `Component`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+
+ return this.controlTextEl_;
+ };
+
+ /**
+ * Get or set the localize text to use for the controls on the `Component`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ ClickableComponent.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Enable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ }
+ };
+
+ /**
+ * Disable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ };
+
+ /**
+ * This gets called when a `ClickableComponent` gets:
+ * - Clicked (via the `click` event, listening starts in the constructor)
+ * - Tapped (via the `tap` event, listening starts in the constructor)
+ * - The following things happen in order:
+ * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the
+ * `ClickableComponent`.
+ * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using
+ * {@link ClickableComponent#handleKeyPress}.
+ * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses
+ * the space or enter key.
+ * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`
+ * event as a parameter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+
+
+ ClickableComponent.prototype.handleClick = function handleClick(event) {};
+
+ /**
+ * This gets called when a `ClickableComponent` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ ClickableComponent.prototype.handleFocus = function handleFocus(event) {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when this ClickableComponent has focus and a key gets pressed down. By
+ * default it will call `this.handleClick` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.trigger('click');
+ } else if (_Component.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ /**
+ * Called when a `ClickableComponent` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ ClickableComponent.prototype.handleBlur = function handleBlur(event) {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ return ClickableComponent;
+ }(Component);
+
+ Component.registerComponent('ClickableComponent', ClickableComponent);
+
+ /**
+ * @file poster-image.js
+ */
+
+ /**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+ var PosterImage = function (_ClickableComponent) {
+ inherits(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ classCallCheck(this, PosterImage);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.update();
+ player.on('posterchange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+ _ClickableComponent.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ PosterImage.prototype.createEl = function createEl$$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+
+ return el;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+
+
+ PosterImage.prototype.update = function update(event) {
+ var url = this.player().poster();
+
+ this.setSrc(url);
+
+ // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.setSrc = function setSrc(url) {
+ var backgroundImage = '';
+
+ // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+ if (url) {
+ backgroundImage = 'url("' + url + '")';
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+
+
+ PosterImage.prototype.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+ }(ClickableComponent);
+
+ Component.registerComponent('PosterImage', PosterImage);
+
+ /**
+ * @file text-track-display.js
+ */
+
+ var darkGray = '#222';
+ var lightGray = '#ccc';
+ var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+ };
+
+ /**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+ function constructColor(color, opacity) {
+ var hex = void 0;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+ }
+
+ /**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+ function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+ }
+
+ /**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+ var TextTrackDisplay = function (_Component) {
+ inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ classCallCheck(this, TextTrackDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ var updateDisplayHandler = bind(_this, _this.updateDisplay);
+
+ player.on('loadstart', bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadstart', bind(_this, _this.preselectTrack));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+
+ window_1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window_1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+ var preferredTrack = void 0;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language === track.language) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track;
+ // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ }
+
+ // clear everything if offTextTrackMenuItem was clicked
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track.default) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ };
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof window_1.WebVTT === 'function') {
+ window_1.WebVTT.processCues(window_1, [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof window_1.WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var cues = [];
+
+ for (var _i = 0; _i < track.activeCues.length; _i++) {
+ cues.push(track.activeCues[_i]);
+ }
+
+ window_1.WebVTT.processCues(window_1, cues, this.el_);
+
+ if (!this.player_.textTrackSettings) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window_1.parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+ }(Component);
+
+ Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+ /**
+ * @file loading-spinner.js
+ */
+
+ /**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+ var LoadingSpinner = function (_Component) {
+ inherits(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ classCallCheck(this, LoadingSpinner);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ LoadingSpinner.prototype.createEl = function createEl$$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+
+ return el;
+ };
+
+ return LoadingSpinner;
+ }(Component);
+
+ Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+ /**
+ * @file button.js
+ */
+
+ /**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+ var Button = function (_ClickableComponent) {
+ inherits(Button, _ClickableComponent);
+
+ function Button() {
+ classCallCheck(this, Button);
+ return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ Button.prototype.createEl = function createEl(tag) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ tag = 'button';
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props);
+
+ // Add attributes for button element
+ attributes = assign({
+
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Button.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var className = this.constructor.name;
+
+ log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');
+
+ // Avoid the error message generated by ClickableComponent's addChild method
+ return Component.prototype.addChild.call(this, child, options);
+ };
+
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+
+
+ Button.prototype.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+ this.el_.removeAttribute('disabled');
+ };
+
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+
+
+ Button.prototype.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+ this.el_.setAttribute('disabled', 'disabled');
+ };
+
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+
+
+ Button.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.
+ if (event.which === 32 || event.which === 13) {
+ return;
+ }
+
+ // Pass keypress handling up for unsupported keys
+ _ClickableComponent.prototype.handleKeyPress.call(this, event);
+ };
+
+ return Button;
+ }(ClickableComponent);
+
+ Component.registerComponent('Button', Button);
+
+ /**
+ * @file big-play-button.js
+ */
+
+ /**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+ var BigPlayButton = function (_Button) {
+ inherits(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ classCallCheck(this, BigPlayButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ };
+
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ BigPlayButton.prototype.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play();
+
+ // exit early if clicked via the mouse
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyPress.call(this, event);
+ };
+
+ BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+ }(Button);
+
+ /**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ BigPlayButton.prototype.controlText_ = 'Play Video';
+
+ Component.registerComponent('BigPlayButton', BigPlayButton);
+
+ /**
+ * @file close-button.js
+ */
+
+ /**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+ var CloseButton = function (_Button) {
+ inherits(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ classCallCheck(this, CloseButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CloseButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when this will be
+ * triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+
+
+ CloseButton.prototype.handleClick = function handleClick(event) {
+
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({ type: 'close', bubbles: false });
+ };
+
+ return CloseButton;
+ }(Button);
+
+ Component.registerComponent('CloseButton', CloseButton);
+
+ /**
+ * @file play-toggle.js
+ */
+
+ /**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+ var PlayToggle = function (_Button) {
+ inherits(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ classCallCheck(this, PlayToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'play', _this.handlePlay);
+ _this.on(player, 'pause', _this.handlePause);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlayToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlayToggle.prototype.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+
+
+ PlayToggle.prototype.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ };
+
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+
+
+ PlayToggle.prototype.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+ // change the button text to "Pause"
+ this.controlText('Pause');
+ };
+
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+
+
+ PlayToggle.prototype.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ // change the button text to "Play"
+ this.controlText('Play');
+ };
+
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ PlayToggle.prototype.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended');
+ // change the button text to "Replay"
+ this.controlText('Replay');
+
+ // on the next seek remove the replay button
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlayToggle.prototype.controlText_ = 'Play';
+
+ Component.registerComponent('PlayToggle', PlayToggle);
+
+ /**
+ * @file format-time.js
+ * @module format-time
+ */
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)
+ * will force a number of leading zeros to cover the length of the guide.
+ *
+ * @param {number} seconds
+ * Number of seconds to be turned into a string
+ *
+ * @param {number} guide
+ * Number (in seconds) to model the string after
+ *
+ * @return {string}
+ * Time formatted as H:MM:SS or M:SS
+ */
+ var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s;
+ };
+
+ var implementation = defaultImplementation;
+
+ /**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime implementation.
+ * Will receive the current time in seconds and the guide (in seconds) as arguments.
+ */
+ function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+ }
+
+ /**
+ * Resets formatTime to the default implementation.
+ */
+ function resetFormatTime() {
+ implementation = defaultImplementation;
+ }
+
+ function formatTime (seconds) {
+ var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;
+
+ return implementation(seconds, guide);
+ }
+
+ /**
+ * @file time-display.js
+ */
+
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var TimeDisplay = function (_Component) {
+ inherits(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ classCallCheck(this, TimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TimeDisplay.prototype.createEl = function createEl$$1(plainName) {
+ var className = this.buildCSSClass();
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + ' vjs-time-control vjs-control',
+ innerHTML: '<span class="vjs-control-text">' + this.localize(this.labelText_) + '\xA0</span>'
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + '-display'
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off'
+ });
+
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ TimeDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document_1.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ };
+
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ };
+
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ };
+
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ TimeDisplay.prototype.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+ }(Component);
+
+ /**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ TimeDisplay.prototype.labelText_ = 'Time';
+
+ /**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ TimeDisplay.prototype.controlText_ = 'Time';
+
+ Component.registerComponent('TimeDisplay', TimeDisplay);
+
+ /**
+ * @file current-time-display.js
+ */
+
+ /**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+ var CurrentTimeDisplay = function (_TimeDisplay) {
+ inherits(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ classCallCheck(this, CurrentTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ };
+
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+
+ this.updateFormattedTime_(time);
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+ /**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+
+ Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+ /**
+ * @file duration-display.js
+ */
+
+ /**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+ var DurationDisplay = function (_TimeDisplay) {
+ inherits(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ classCallCheck(this, DurationDisplay);
+
+ // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.updateContent);
+
+ // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ };
+
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+
+
+ DurationDisplay.prototype.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (duration && this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DurationDisplay.prototype.labelText_ = 'Duration';
+
+ /**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ DurationDisplay.prototype.controlText_ = 'Duration';
+
+ Component.registerComponent('DurationDisplay', DurationDisplay);
+
+ /**
+ * @file time-divider.js
+ */
+
+ /**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+ var TimeDivider = function (_Component) {
+ inherits(TimeDivider, _Component);
+
+ function TimeDivider() {
+ classCallCheck(this, TimeDivider);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeDivider.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ });
+ };
+
+ return TimeDivider;
+ }(Component);
+
+ Component.registerComponent('TimeDivider', TimeDivider);
+
+ /**
+ * @file remaining-time-display.js
+ */
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var RemainingTimeDisplay = function (_TimeDisplay) {
+ inherits(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ classCallCheck(this, RemainingTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ };
+
+ /**
+ * The remaining time display prefixes numbers with a "minus" character.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ // TODO: The "-" should be decorative, and not announced by a screen reader
+ return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);
+ };
+
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+
+
+ RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+ /**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+
+ Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+ /**
+ * @file live-display.js
+ */
+
+ // TODO - Future make it click to snap to live
+
+ /**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+ var LiveDisplay = function (_Component) {
+ inherits(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ classCallCheck(this, LiveDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.updateShowing();
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LiveDisplay.prototype.createEl = function createEl$$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: '<span class="vjs-control-text">' + this.localize('Stream Type') + '\xA0</span>' + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ LiveDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+
+
+ LiveDisplay.prototype.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+ }(Component);
+
+ Component.registerComponent('LiveDisplay', LiveDisplay);
+
+ /**
+ * @file slider.js
+ */
+
+ /**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+ var Slider = function (_Component) {
+ inherits(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ classCallCheck(this, Slider);
+
+ // Set property names to bar to match with the child Slider class is looking for
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.bar = _this.getChild(_this.options_.barName);
+
+ // Set a horizontal or vertical class on the slider depending on the slider type
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ Slider.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+
+
+ Slider.prototype.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ this.on('click', this.handleClick);
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+
+
+ Slider.prototype.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+ var doc = this.bar.el_.ownerDocument;
+
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+ this.enabled_ = false;
+ };
+
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Slider.prototype.createEl = function createEl$$1(type) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+
+
+ Slider.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ }
+ // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+ blockTextSelection();
+
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('slideractive');
+
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+
+ this.handleMouseMove(event);
+ };
+
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ Slider.prototype.handleMouseMove = function handleMouseMove(event) {};
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+
+
+ Slider.prototype.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+
+ unblockTextSelection();
+
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('sliderinactive');
+
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+
+ this.update();
+ };
+
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @returns {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+
+
+ Slider.prototype.update = function update() {
+
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ }
+
+ // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+ var progress = this.getPercent();
+ var bar = this.bar;
+
+ // If there's no bar...
+ if (!bar) {
+ return;
+ }
+
+ // Protect against no duration and other division issues
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ }
+
+ // Convert to a percentage for setting
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style;
+
+ // Set the new bar width or height
+ if (this.vertical()) {
+ style.height = percentage;
+ } else {
+ style.width = percentage;
+ }
+
+ return progress;
+ };
+
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+
+
+ Slider.prototype.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+ return position.x;
+ };
+
+ /**
+ * Handle a `focus` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to run.
+ *
+ * @listens focus
+ */
+
+
+ Slider.prototype.handleFocus = function handleFocus() {
+ this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+
+
+ Slider.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepBack();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepForward();
+ }
+ };
+
+ /**
+ * Handle a `blur` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to run.
+ *
+ * @listens blur
+ */
+
+ Slider.prototype.handleBlur = function handleBlur() {
+ this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+
+
+ Slider.prototype.handleClick = function handleClick(event) {
+ event.stopImmediatePropagation();
+ event.preventDefault();
+ };
+
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+
+
+ Slider.prototype.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+ }(Component);
+
+ Component.registerComponent('Slider', Slider);
+
+ /**
+ * @file load-progress-bar.js
+ */
+
+ /**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+ var LoadProgressBar = function (_Component) {
+ inherits(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ classCallCheck(this, LoadProgressBar);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.partEls_ = [];
+ _this.on(player, 'progress', _this.update);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LoadProgressBar.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Loaded') + '</span>: 0%</span>'
+ });
+ };
+
+ LoadProgressBar.prototype.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+
+
+ LoadProgressBar.prototype.update = function update(event) {
+ var buffered = this.player_.buffered();
+ var duration = this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+
+ // get the percent width of a time compared to the total end
+ var percentify = function percentify(time, end) {
+ // no NaN
+ var percent = time / end || 0;
+
+ return (percent >= 1 ? 1 : percent) * 100 + '%';
+ };
+
+ // update the width of the progress bar
+ this.el_.style.width = percentify(bufferedEnd, duration);
+
+ // add child elements to represent the individual buffered time ranges
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ }
+
+ // set the percent based on the width of the progress bar (bufferedEnd)
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ }
+
+ // remove unused buffered range elements
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+ }(Component);
+
+ Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+ /**
+ * @file time-tooltip.js
+ */
+
+ /**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+ var TimeTooltip = function (_Component) {
+ inherits(TimeTooltip, _Component);
+
+ function TimeTooltip() {
+ classCallCheck(this, TimeTooltip);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeTooltip.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ });
+ };
+
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+ // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+ if (!playerRect || !tooltipRect) {
+ return;
+ }
+
+ // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+ // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+ // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+ var pullTooltipBy = tooltipRect.width / 2;
+
+ // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ }
+
+ // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = '-' + pullTooltipBy + 'px';
+ textContent(this.el_, content);
+ };
+
+ return TimeTooltip;
+ }(Component);
+
+ Component.registerComponent('TimeTooltip', TimeTooltip);
+
+ /**
+ * @file play-progress-bar.js
+ */
+
+ /**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var PlayProgressBar = function (_Component) {
+ inherits(PlayProgressBar, _Component);
+
+ function PlayProgressBar() {
+ classCallCheck(this, PlayProgressBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ PlayProgressBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Progress') + '</span>: 0%</span>'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();
+
+ var content = formatTime(time, _this2.player_.duration());
+ var timeTooltip = _this2.getChild('timeTooltip');
+
+ if (timeTooltip) {
+ timeTooltip.update(seekBarRect, seekBarPoint, content);
+ }
+ });
+ };
+
+ return PlayProgressBar;
+ }(Component);
+
+ /**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ PlayProgressBar.prototype.options_ = {
+ children: []
+ };
+
+ // Time tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+ }
+
+ Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+ /**
+ * @file mouse-time-display.js
+ */
+
+ /**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var MouseTimeDisplay = function (_Component) {
+ inherits(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ classCallCheck(this, MouseTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.update = throttle(bind(_this, _this.update), 25);
+ return _this;
+ }
+
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ MouseTimeDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var duration = _this2.player_.duration();
+ var content = formatTime(seekBarPoint * duration, duration);
+
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';
+ _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);
+ });
+ };
+
+ return MouseTimeDisplay;
+ }(Component);
+
+ /**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+ };
+
+ Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+ /**
+ * @file seek-bar.js
+ */
+
+ // The number of seconds the `step*` functions move the timeline.
+ var STEP_SECONDS = 5;
+
+ // The interval at which the bar should update as it progresses.
+ var UPDATE_REFRESH_INTERVAL = 30;
+
+ /**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+ var SeekBar = function (_Slider) {
+ inherits(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ classCallCheck(this, SeekBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.setEventHandlers_();
+ return _this;
+ }
+
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {
+ var _this2 = this;
+
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);
+
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+
+ // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+ this.updateInterval = null;
+
+ this.on(this.player_, ['playing'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+
+ _this2.updateInterval = _this2.setInterval(function () {
+ _this2.requestAnimationFrame(function () {
+ _this2.update();
+ });
+ }, UPDATE_REFRESH_INTERVAL);
+ });
+
+ this.on(this.player_, ['ended', 'pause', 'waiting'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+ });
+
+ this.on(this.player_, ['timeupdate', 'ended'], this.update);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ SeekBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ };
+
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.update_ = function update_(currentTime, percent) {
+ var duration = this.player_.duration();
+
+ // machine readable value of progress bar (percentage complete)
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+
+ // human readable value of progress bar (time complete)
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+
+ // Update the `PlayProgressBar`.
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ };
+
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @returns {number}
+ * The current percent at a number from 0-1
+ */
+
+
+ SeekBar.prototype.update = function update(event) {
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ };
+
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ };
+
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ SeekBar.prototype.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ };
+
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+
+
+ SeekBar.prototype.getPercent = function getPercent() {
+ var percent = this.getCurrentTime_() / this.player_.duration();
+
+ return percent >= 1 ? 1 : percent || 0;
+ };
+
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+
+
+ SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime = this.calculateDistance(event) * this.player_.duration();
+
+ // Don't let video end while scrubbing.
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+
+ // Set new time (tell player to seek to new time)
+ this.player_.currentTime(newTime);
+ };
+
+ SeekBar.prototype.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ SeekBar.prototype.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ };
+
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+
+
+ SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event);
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ if (event) {
+ event.stopPropagation();
+ }
+ this.player_.scrubbing(false);
+
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ };
+
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ };
+
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ };
+
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+
+
+ SeekBar.prototype.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down. By
+ * default it will call `this.handleAction` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.handleAction(event);
+ } else if (_Slider.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Slider.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ return SeekBar;
+ }(Slider);
+
+ /**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+ };
+
+ // MouseTimeDisplay tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+ }
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ SeekBar.prototype.playerEvent = 'timeupdate';
+
+ Component.registerComponent('SeekBar', SeekBar);
+
+ /**
+ * @file progress-control.js
+ */
+
+ /**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+ var ProgressControl = function (_Component) {
+ inherits(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ classCallCheck(this, ProgressControl);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+ _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ ProgressControl.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ };
+
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+
+
+ ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+ // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ };
+
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ };
+
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ ProgressControl.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Disable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+
+ this.addClass('disabled');
+
+ this.enabled_ = false;
+ };
+
+ /**
+ * Enable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+ }(Component);
+
+ /**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+ };
+
+ Component.registerComponent('ProgressControl', ProgressControl);
+
+ /**
+ * @file fullscreen-toggle.js
+ */
+
+ /**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+ var FullscreenToggle = function (_Button) {
+ inherits(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ classCallCheck(this, FullscreenToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document_1[FullscreenApi.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+
+
+ FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ };
+
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ FullscreenToggle.prototype.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+
+ Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+ /**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file volume-level.js
+ */
+
+ /**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeLevel = function (_Component) {
+ inherits(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ classCallCheck(this, VolumeLevel);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ VolumeLevel.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+ }(Component);
+
+ Component.registerComponent('VolumeLevel', VolumeLevel);
+
+ /**
+ * @file volume-bar.js
+ */
+
+ /**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+ var VolumeBar = function (_Slider) {
+ inherits(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ classCallCheck(this, VolumeBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.on('slideractive', _this.updateLastVolume_);
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ };
+
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+
+
+ VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ };
+
+ /**
+ * If the player is muted unmute it.
+ */
+
+
+ VolumeBar.prototype.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ };
+
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+
+
+ VolumeBar.prototype.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+ return this.player_.volume();
+ };
+
+ /**
+ * Increase volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ };
+
+ /**
+ * Decrease volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ };
+
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+
+
+ VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ };
+
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+
+
+ VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ };
+
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+
+
+ VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+ }(Slider);
+
+ /**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+ };
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ VolumeBar.prototype.playerEvent = 'volumechange';
+
+ Component.registerComponent('VolumeBar', VolumeBar);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeControl = function (_Component) {
+ inherits(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumeControl);
+
+ options.vertical = options.vertical || false;
+
+ // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ checkVolumeSupport(_this, player);
+
+ _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+
+ _this.on('mousedown', _this.handleMouseDown);
+ _this.on('touchstart', _this.handleMouseDown);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+ _this.addClass('vjs-slider-active');
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+ _this.removeClass('vjs-slider-active');
+ _this.trigger('sliderinactive');
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeControl.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-control vjs-control ' + orientationClass
+ });
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+ };
+
+ Component.registerComponent('VolumeControl', VolumeControl);
+
+ /**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file mute-toggle.js
+ */
+
+ /**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+ var MuteToggle = function (_Button) {
+ inherits(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ classCallCheck(this, MuteToggle);
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ checkMuteSupport(_this, player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MuteToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MuteToggle.prototype.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ };
+
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+
+
+ MuteToggle.prototype.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ };
+
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3;
+
+ // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+ if (IS_IOS) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ }
+
+ // TODO improve muted icon classes
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, 'vjs-vol-' + i);
+ }
+ addClass(this.el_, 'vjs-vol-' + level);
+ };
+
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ MuteToggle.prototype.controlText_ = 'Mute';
+
+ Component.registerComponent('MuteToggle', MuteToggle);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+ var VolumePanel = function (_Component) {
+ inherits(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumePanel);
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ }
+
+ // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+ return _this;
+ }
+
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ };
+
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ };
+
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+
+
+ VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ }
+
+ // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumePanel.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-panel vjs-control ' + orientationClass
+ });
+ };
+
+ return VolumePanel;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+ };
+
+ Component.registerComponent('VolumePanel', VolumePanel);
+
+ /**
+ * @file menu.js
+ */
+
+ /**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+ var Menu = function (_Component) {
+ inherits(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ classCallCheck(this, Menu);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyPress);
+ return _this;
+ }
+
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+
+
+ Menu.prototype.addItem = function addItem(component) {
+ this.addChild(component);
+ component.on('click', bind(this, function (event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+
+ // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+ if (component.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }));
+ };
+
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+
+
+ Menu.prototype.createEl = function createEl$$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_);
+
+ // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+
+ return el;
+ };
+
+ Menu.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+
+
+ Menu.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepForward();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepBack();
+ }
+ };
+
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+
+
+ Menu.prototype.focus = function focus() {
+ var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+ }(Component);
+
+ Component.registerComponent('Menu', Menu);
+
+ /**
+ * @file menu-button.js
+ */
+
+ /**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+ var MenuButton = function (_Component) {
+ inherits(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, MenuButton);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+ // Add buildCSSClass values to the button, not the wrapper
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+ _this.on(_this.menuButton_, 'focus', _this.handleFocus);
+ _this.on(_this.menuButton_, 'blur', _this.handleBlur);
+
+ _this.on('keydown', _this.handleSubmenuKeyPress);
+ return _this;
+ }
+
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ MenuButton.prototype.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+
+
+ MenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, { menuButton: this });
+
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+ this.hideThreshold_ = 0;
+
+ // Add a title list item to the top
+ if (this.options_.title) {
+ var title = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+
+ this.hideThreshold_ += 1;
+
+ menu.children_.unshift(title);
+ prependTo(title, menu.contentEl());
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+
+
+ MenuButton.prototype.createItems = function createItems() {};
+
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuButton.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ };
+
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+
+
+ MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ // TODO: Fix the CSS so that this isn't necessary
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ MenuButton.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();
+
+ return this.menuButton_.controlText(text, el);
+ };
+
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuButton.prototype.handleClick = function handleClick(event) {
+ // When you click the button it adds focus, which will show the menu.
+ // So we'll remove focus when the mouse leaves the button. Focus is needed
+ // for tab navigation.
+
+ this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {
+ this.unpressButton();
+ this.el_.blur();
+ }));
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ };
+
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+
+
+ MenuButton.prototype.focus = function focus() {
+ this.menuButton_.focus();
+ };
+
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+
+
+ MenuButton.prototype.blur = function blur() {
+ this.menuButton_.blur();
+ };
+
+ /**
+ * This gets called when a `MenuButton` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ MenuButton.prototype.handleFocus = function handleFocus() {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when a `MenuButton` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ MenuButton.prototype.handleBlur = function handleBlur() {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyPress} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ // Up (38) key or Down (40) key press the 'button'
+ } else if (event.which === 38 || event.which === 40) {
+ if (!this.buttonPressed_) {
+ this.pressButton();
+ event.preventDefault();
+ }
+ }
+ };
+
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ }
+ };
+
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+
+
+ MenuButton.prototype.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+ // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ };
+
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+
+
+ MenuButton.prototype.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ };
+
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.disable = function disable() {
+ this.unpressButton();
+
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+
+ this.menuButton_.disable();
+ };
+
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+ }(Component);
+
+ Component.registerComponent('MenuButton', MenuButton);
+
+ /**
+ * @file track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+ var TrackButton = function (_MenuButton) {
+ inherits(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ classCallCheck(this, TrackButton);
+
+ var tracks = options.tracks;
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return possibleConstructorReturn(_this);
+ }
+
+ var updateHandler = bind(_this, _this.update);
+
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+ return _this;
+ }
+
+ return TrackButton;
+ }(MenuButton);
+
+ Component.registerComponent('TrackButton', TrackButton);
+
+ /**
+ * @file menu-item.js
+ */
+
+ /**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+ var MenuItem = function (_ClickableComponent) {
+ inherits(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ classCallCheck(this, MenuItem);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+ return _this;
+ }
+
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: '<span class="vjs-menu-item-text">' + this.localize(this.options_.label) + '</span>',
+ tabIndex: -1
+ }, props), attrs);
+ };
+
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuItem.prototype.handleClick = function handleClick(event) {
+ this.selected(true);
+ };
+
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+
+
+ MenuItem.prototype.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true');
+ // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false');
+ // Indicate un-selected state to screen reader
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+ }(ClickableComponent);
+
+ Component.registerComponent('MenuItem', MenuItem);
+
+ /**
+ * @file text-track-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+ var TextTrackMenuItem = function (_MenuItem) {
+ inherits(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ classCallCheck(this, TextTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.textTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_this, args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ });
+
+ // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+ if (tracks.onchange === undefined) {
+ var event = void 0;
+
+ _this.on(['tap', 'click'], function () {
+ if (_typeof(window_1.Event) !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window_1.Event('change');
+ } catch (err) {
+ // continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document_1.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ }
+
+ // set the default state based on current tracks
+ _this.handleTracksChange();
+ return _this;
+ }
+
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ TextTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var kind = this.track.kind;
+ var kinds = this.track.kinds;
+ var tracks = this.player_.textTracks();
+
+ if (!kinds) {
+ kinds = [kind];
+ }
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ if (track === this.track && kinds.indexOf(track.kind) > -1) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ }
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ };
+
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing';
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage;
+
+ // Don't replace the kind of track across the same language
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ TextTrackMenuItem.prototype.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+ /**
+ * @file off-text-track-menu-item.js
+ */
+
+ /**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var OffTextTrackMenuItem = function (_TextTrackMenuItem) {
+ inherits(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ classCallCheck(this, OffTextTrackMenuItem);
+
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ kind: options.kind,
+ kinds: options.kinds,
+ default: false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ }
+
+ // MenuItem is selectable
+ options.selectable = true;
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ options.multiSelectable = false;
+
+ return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ }
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+ /**
+ * @file text-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+ var TextTrackButton = function (_TrackButton) {
+ inherits(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, TextTrackButton);
+
+ options.tracks = player.textTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ TextTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;
+
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label = void 0;
+
+ if (this.label_) {
+ label = this.label_ + ' off';
+ }
+ // Add an OFF menu item to turn all tracks off
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+
+ this.hideThreshold_ += 1;
+
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // only add tracks that are of an appropriate kind and have a label
+ if (this.kinds_.indexOf(track.kind) > -1) {
+
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+
+ item.addClass('vjs-' + track.kind + '-menu-item');
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+ }(TrackButton);
+
+ Component.registerComponent('TextTrackButton', TextTrackButton);
+
+ /**
+ * @file chapters-track-menu-item.js
+ */
+
+ /**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+ var ChaptersTrackMenuItem = function (_MenuItem) {
+ inherits(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ classCallCheck(this, ChaptersTrackMenuItem);
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime();
+
+ // Modify options for parent MenuItem class's init.
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ };
+
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+
+
+ ChaptersTrackMenuItem.prototype.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime();
+
+ // vjs.log(currentTime, cue.startTime);
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+ /**
+ * @file chapters-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+ var ChaptersButton = function (_TextTrackButton) {
+ inherits(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ classCallCheck(this, ChaptersButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+
+
+ ChaptersButton.prototype.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+ _TextTrackButton.prototype.update.call(this);
+ };
+
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+
+
+ ChaptersButton.prototype.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ }
+
+ // here this.track_ refers to the old track instance
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track;
+
+ // here this.track_ refers to the new track instance
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ };
+
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+
+
+ ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ };
+
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+
+
+ ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+ return this.localize(toTitleCase(this.kind_));
+ };
+
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+
+
+ ChaptersButton.prototype.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ };
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+
+
+ ChaptersButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });
+
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ ChaptersButton.prototype.kind_ = 'chapters';
+
+ /**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ ChaptersButton.prototype.controlText_ = 'Chapters';
+
+ Component.registerComponent('ChaptersButton', ChaptersButton);
+
+ /**
+ * @file descriptions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+ var DescriptionsButton = function (_TextTrackButton) {
+ inherits(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ classCallCheck(this, DescriptionsButton);
+
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+ var tracks = player.textTracks();
+ var changeHandler = bind(_this, _this.handleTracksChange);
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false;
+
+ // Check whether a track of a different kind is showing
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ }
+
+ // If another track is showing, disable this menu button
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DescriptionsButton.prototype.kind_ = 'descriptions';
+
+ /**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+ Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+ /**
+ * @file subtitles-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubtitlesButton = function (_TextTrackButton) {
+ inherits(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ classCallCheck(this, SubtitlesButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ SubtitlesButton.prototype.kind_ = 'subtitles';
+
+ /**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ SubtitlesButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+ /**
+ * @file caption-settings-menu-item.js
+ */
+
+ /**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var CaptionSettingsMenuItem = function (_TextTrackMenuItem) {
+ inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ classCallCheck(this, CaptionSettingsMenuItem);
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ default: false,
+ mode: 'disabled'
+ };
+
+ // CaptionSettingsMenuItem has no concept of 'selected'
+ options.selectable = false;
+
+ options.name = 'CaptionSettingsMenuItem';
+
+ var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+
+ _this.addClass('vjs-texttrack-settings');
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+ return _this;
+ }
+
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+ /**
+ * @file captions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+ var CaptionsButton = function (_TextTrackButton) {
+ inherits(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ classCallCheck(this, CaptionsButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ CaptionsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CaptionsButton.prototype.kind_ = 'captions';
+
+ /**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ CaptionsButton.prototype.controlText_ = 'Captions';
+
+ Component.registerComponent('CaptionsButton', CaptionsButton);
+
+ /**
+ * @file subs-caps-menu-item.js
+ */
+
+ /**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var SubsCapsMenuItem = function (_TextTrackMenuItem) {
+ inherits(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ classCallCheck(this, SubsCapsMenuItem);
+ return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));
+ }
+
+ SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Captions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+ /**
+ * @file sub-caps-button.js
+ */
+ /**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubsCapsButton = function (_TextTrackButton) {
+ inherits(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, SubsCapsButton);
+
+ // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));
+
+ _this.label_ = 'subtitles';
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ SubsCapsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+ SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+ /**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+ SubsCapsButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+ /**
+ * @file audio-track-menu-item.js
+ */
+
+ /**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+ var AudioTrackMenuItem = function (_MenuItem) {
+ inherits(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ classCallCheck(this, AudioTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.audioTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+
+ _this.addClass('vjs-' + track.kind + '-menu-item');
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Descriptions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.enabled = track === this.track;
+ }
+ };
+
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+
+
+ AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+ /**
+ * @file audio-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+ var AudioTrackButton = function (_TrackButton) {
+ inherits(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, AudioTrackButton);
+
+ options.tracks = player.audioTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+
+
+ AudioTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+ }(TrackButton);
+
+ /**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ AudioTrackButton.prototype.controlText_ = 'Audio Track';
+ Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+ /**
+ * @file playback-rate-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+ var PlaybackRateMenuItem = function (_MenuItem) {
+ inherits(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ classCallCheck(this, PlaybackRateMenuItem);
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10);
+
+ // Modify options for parent MenuItem class's init.
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+ return _this;
+ }
+
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player().playbackRate(this.rate);
+ };
+
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuItem.prototype.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+ }(MenuItem);
+
+ /**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuItem.prototype.contentElType = 'button';
+
+ Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+ /**
+ * @file playback-rate-menu-button.js
+ */
+
+ /**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+ var PlaybackRateMenuButton = function (_MenuButton) {
+ inherits(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ classCallCheck(this, PlaybackRateMenuButton);
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ _this.updateVisibility();
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+ _this.on(player, 'ratechange', _this.updateLabel);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+
+ el.appendChild(this.labelEl_);
+
+ return el;
+ };
+
+ PlaybackRateMenuButton.prototype.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+
+
+ PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Updates ARIA accessibility attributes
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ };
+
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates();
+
+ // this will select first one if the last one currently selected
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+ this.player().playbackRate(newRate);
+ };
+
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ };
+
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ };
+
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ };
+
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+ }(MenuButton);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+ Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+ /**
+ * @file spacer.js
+ */
+
+ /**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+ var Spacer = function (_Component) {
+ inherits(Spacer, _Component);
+
+ function Spacer() {
+ classCallCheck(this, Spacer);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ Spacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ Spacer.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+ }(Component);
+
+ Component.registerComponent('Spacer', Spacer);
+
+ /**
+ * @file custom-control-spacer.js
+ */
+
+ /**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+ var CustomControlSpacer = function (_Spacer) {
+ inherits(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ classCallCheck(this, CustomControlSpacer);
+ return possibleConstructorReturn(this, _Spacer.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ CustomControlSpacer.prototype.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ });
+
+ // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+ el.innerHTML = '\xA0';
+ return el;
+ };
+
+ return CustomControlSpacer;
+ }(Spacer);
+
+ Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+ /**
+ * @file control-bar.js
+ */
+
+ /**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+ var ControlBar = function (_Component) {
+ inherits(ControlBar, _Component);
+
+ function ControlBar() {
+ classCallCheck(this, ControlBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ControlBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+ }(Component);
+
+ /**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+ };
+
+ Component.registerComponent('ControlBar', ControlBar);
+
+ /**
+ * @file error-display.js
+ */
+
+ /**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+ var ErrorDisplay = function (_ModalDialog) {
+ inherits(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ classCallCheck(this, ErrorDisplay);
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.on(player, 'error', _this.open);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+
+
+ ErrorDisplay.prototype.content = function content() {
+ var error = this.player().error();
+
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+ }(ModalDialog);
+
+ /**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+ });
+
+ Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+ /**
+ * @file text-track-settings.js
+ */
+
+ var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+
+ var COLOR_BLACK = ['#000', 'Black'];
+ var COLOR_BLUE = ['#00F', 'Blue'];
+ var COLOR_CYAN = ['#0FF', 'Cyan'];
+ var COLOR_GREEN = ['#0F0', 'Green'];
+ var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+ var COLOR_RED = ['#F00', 'Red'];
+ var COLOR_WHITE = ['#FFF', 'White'];
+ var COLOR_YELLOW = ['#FF0', 'Yellow'];
+
+ var OPACITY_OPAQUE = ['1', 'Opaque'];
+ var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+ var OPACITY_TRANS = ['0', 'Transparent'];
+
+ // Configuration for the various <select> elements in the DOM of this component.
+ //
+ // Possible keys include:
+ //
+ // `default`:
+ // The default option index. Only needs to be provided if not zero.
+ // `parser`:
+ // A function which is used to parse the value from the selected option in
+ // a customized way.
+ // `selector`:
+ // The selector used to find the associated <select> element.
+ var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ default: 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+ };
+
+ selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+ /**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+ }
+
+ /**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+
+ return parseOptionValue(value, parser);
+ }
+
+ /**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+ function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+ }
+
+ /**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+ var TextTrackSettings = function (_ModalDialog) {
+ inherits(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ classCallCheck(this, TextTrackSettings);
+
+ options.temporary = false;
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.updateDisplay = bind(_this, _this.updateDisplay);
+
+ // fill the modal and pretend we have opened it
+ _this.fill();
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults();
+
+ // Grab `persistTextTrackSettings` from the player options if not passed in child options
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+ return _this;
+ }
+
+ TextTrackSettings.prototype.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {
+ var _this2 = this;
+
+ var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+ var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+
+ return ['<' + type + ' id="' + id + '" class="' + (type === 'label' ? 'vjs-label' : '') + '">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby="' + selectLabelledbyIds + '">'].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+
+ return ['<option id="' + optionId + '" value="' + o[0] + '" ', 'aria-labelledby="' + selectLabelledbyIds + ' ' + optionId + '">', _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ };
+
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {
+ var legendId = 'captions-text-legend-' + this.id_;
+
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {
+ var legendId = 'captions-background-' + this.id_;
+
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {
+ var legendId = 'captions-window-' + this.id_;
+
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ };
+
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ };
+
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ['<button class="vjs-default-button" title="' + defaultsDescription + '">', this.localize('Reset'), '<span class="vjs-control-text"> ' + defaultsDescription + '</span>', '</button>', '<button class="vjs-done-button">' + this.localize('Done') + '</button>'].join('')
+ });
+ };
+
+ TextTrackSettings.prototype.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ TextTrackSettings.prototype.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ TextTrackSettings.prototype.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ };
+
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ };
+
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ };
+
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+
+
+ TextTrackSettings.prototype.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config.default : 0;
+
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ };
+
+ /**
+ * Restore texttrack settings from localStorage
+ */
+
+
+ TextTrackSettings.prototype.restoreSettings = function restoreSettings() {
+ var values = void 0;
+
+ try {
+ values = JSON.parse(window_1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log$1.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ };
+
+ /**
+ * Save text track settings to localStorage
+ */
+
+
+ TextTrackSettings.prototype.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window_1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window_1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log$1.warn(err);
+ }
+ };
+
+ /**
+ * Update display of text track settings
+ */
+
+
+ TextTrackSettings.prototype.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ this.off(document_1, 'keydown', this.handleKeyDown);
+
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+ }(ModalDialog);
+
+ Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+ /**
+ * @file resize-manager.js
+ */
+
+ /**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+ var ResizeManager = function (_Component) {
+ inherits(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ classCallCheck(this, ResizeManager);
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window_1.ResizeObserver;
+
+ // if `null` was passed, we want to disable the ResizeObserver
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ }
+
+ // Only create an element when ResizeObserver isn't available
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));
+
+ _this.ResizeObserver = options.ResizeObserver || window_1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _this);
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+ return _this;
+ }
+
+ ResizeManager.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager'
+ });
+ };
+
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+
+
+ ResizeManager.prototype.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ ResizeManager.prototype.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.el_ && this.el_.contentWindow) {
+ off(this.el_.contentWindow, 'resize', this.debouncedHandler_);
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+ };
+
+ return ResizeManager;
+ }(Component);
+
+ Component.registerComponent('ResizeManager', ResizeManager);
+
+ /**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+ var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el();
+
+ // if `el.src` is set, that source will be loaded.
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = '';
+
+ // if there are no sources, do not fire sourceset
+ if (!sources.length) {
+ return false;
+ }
+
+ // only count valid/non-duplicate source elements
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ }
+
+ // there were no valid sources
+ if (!srcUrls.length) {
+ return false;
+ }
+
+ // there is only one valid source element url
+ // use that
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+ };
+
+ /**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+ var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document_1.createElement(this.nodeName.toLowerCase());
+
+ // set innerHTML to the value provided
+ dummy.innerHTML = v;
+
+ // make a document fragment to hold the nodes from dummy
+ var docFrag = document_1.createDocumentFragment();
+
+ // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ }
+
+ // remove content
+ this.innerText = '';
+
+ // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+ window_1.Element.prototype.appendChild.call(this, docFrag);
+
+ // then return the result that innerHTML's setter would
+ return this.innerHTML;
+ }
+ });
+
+ /**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+ var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+
+ return descriptor;
+ };
+
+ var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, window_1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+ };
+
+ /**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+ var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el();
+
+ // make sure firstSourceWatch isn't setup twice.
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+
+ sourcesetLoad(tech);
+
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ }
+
+ // store the old function
+ old[k] = el[k];
+
+ // call the old function with a sourceset if a source
+ // was loaded
+ el[k] = appendWrapper(old[k]);
+ });
+
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ };
+
+ // on the first sourceset, we need to revert our changes
+ tech.one('sourceset', el.resetSourceWatch_);
+ };
+
+ /**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+ var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window_1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window_1.Element.prototype.setAttribute.call(this, 'src', v);
+
+ return v;
+ }
+ });
+
+ var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+ };
+
+ /**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+ var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el();
+
+ // make sure sourceset isn't setup twice.
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v);
+
+ // we use the getter here to get the actual value set on src
+ tech.triggerSourceset(el.src);
+
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el);
+
+ // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+ };
+
+ var _templateObject$1 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.']);
+
+ /**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+ var Html5 = function (_Tech) {
+ inherits(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ classCallCheck(this, Html5);
+
+ var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));
+
+ var source = options.source;
+ var crossoriginTracks = false;
+
+ // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ }
+
+ // setup sourceset after late sourceset/init
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+ _this.remoteTextTracks().addTrack(node.track);
+ _this.textTracks().addTrack(node.track);
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log$1.warn(tsml(_templateObject$1));
+ }
+
+ // prevent iOS Safari from disabling metadata text tracks during native playback
+ _this.restoreMetadataTracksInIOSNativePlayer_();
+
+ // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ }
+
+ // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+ return _this;
+ }
+
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ Html5.prototype.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null;
+
+ // tech will handle clearing of the emulated track list
+ _Tech.prototype.dispose.call(this);
+ };
+
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+
+
+ Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ };
+
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState = void 0;
+
+ // captures a snapshot of every metadata track's current state
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ };
+
+ // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ }
+ // we only want this handler to be executed on the first 'change' event
+ textTracks.removeEventListener('change', restoreTrackMode);
+ };
+
+ // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ });
+
+ // start updating the snapshot again after leaving fullscreen
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ };
+
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {String} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {Boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+
+
+ Html5.prototype.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this['featuresNative' + type + 'Tracks']) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + 'TracksListeners_']) {
+ Object.keys(this[lowerCaseType + 'TracksListeners_']).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + 'Tracks'];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + 'TracksListeners_'][eventName]);
+ });
+ }
+
+ this['featuresNative' + type + 'Tracks'] = !override;
+ this[lowerCaseType + 'TracksListeners_'] = null;
+
+ this.proxyNativeTracksForType_(lowerCaseType);
+ };
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ };
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ };
+
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+
+ elTracks.addEventListener(eventName, listener);
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ });
+
+ // Remove (native) tracks that are not used anymore
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ };
+
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ };
+
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Html5.prototype.createEl = function createEl$$1() {
+ var el = this.options_.tag;
+
+ // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document_1.createElement('video');
+
+ // determine if native controls should be used
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ class: 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ }
+
+ // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ };
+
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+
+
+ Html5.prototype.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+
+ return;
+ }
+
+ // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+ var eventsToTrigger = ['loadstart'];
+
+ // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+ eventsToTrigger.push('loadedmetadata');
+
+ // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ }
+
+ // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ }
+
+ // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ }
+
+ // We still need to give the player time to add event listeners
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ };
+
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+
+
+ Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log$1(e, 'Video is not ready. (Video.js)');
+ // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ };
+
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+
+
+ Html5.prototype.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+ return this.el_.duration || NaN;
+ };
+
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+
+
+ Html5.prototype.width = function width() {
+ return this.el_.offsetWidth;
+ };
+
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+
+
+ Html5.prototype.height = function height() {
+ return this.el_.offsetHeight;
+ };
+
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+
+
+ Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', { isFullscreen: false });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+
+ this.trigger('fullscreenchange', { isFullscreen: true });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ };
+
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+
+
+ Html5.prototype.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window_1.navigator && window_1.navigator.userAgent || '';
+
+ // Seems to be broken in Chromium/Chrome && Safari in Leopard
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+
+
+ Html5.prototype.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play();
+
+ // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ };
+
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+
+
+ Html5.prototype.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ };
+
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ Html5.prototype.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ }
+
+ // Setting src through `src` instead of `setSrc` will be deprecated
+ this.setSrc(_src);
+ };
+
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+
+
+ Html5.prototype.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ };
+
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+
+
+ Html5.prototype.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+ return this.el_.currentSrc;
+ };
+
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+
+
+ Html5.prototype.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ };
+
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+ var htmlTrackElement = document_1.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+ if (options.default) {
+ htmlTrackElement.default = options.default;
+ }
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+
+
+ Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+
+
+ Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window_1.performance && typeof window_1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window_1.performance.now();
+ } else if (window_1.performance && window_1.performance.timing && typeof window_1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window_1.Date.now() - window_1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+ }(Tech);
+
+ /* HTML5 Support Testing ---------------------------------------------------- */
+
+ if (isReal()) {
+
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document_1.createElement('video');
+ var track = document_1.createElement('track');
+
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+ }
+
+ /**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+ Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+ };
+
+ /**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+ };
+
+ /**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+ Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+ Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted;
+
+ // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+ Html5.TEST_VID.muted = !muted;
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+ Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ }
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+ Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document_1.createElement('video'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('video'), 'innerHTML', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'innerHTML', { get: noop, set: noop });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+ };
+
+ /**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+ };
+
+ /**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+ };
+
+ /**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+ };
+
+ /**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+ Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+ Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+ Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+ Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+ // TODO: Previous comment: No longer appears to be used. Can probably be removed.
+ // Is this true?
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresFullscreenResize = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresProgressEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+ Html5.prototype.featuresTimeupdateEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+ Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+ Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+ Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();
+
+ // HTML5 Feature detection and Device Fixes --------------------------------- //
+ var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+ var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+ Html5.patchCanPlayType = function () {
+
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+ return canPlayType.call(this, type);
+ };
+ }
+ };
+
+ Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+ };
+
+ // by default, patch the media element
+ Html5.patchCanPlayType();
+
+ Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ }
+
+ // remove any child track or source nodes to prevent their loading
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ }
+
+ // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+ el.removeAttribute('src');
+
+ // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // not supported
+ }
+ })();
+ }
+ };
+
+ Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ }
+
+ // remove any src reference.
+ // not setting `src=''` because that throws an error
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // satisfy linter
+ }
+ })();
+ }
+ };
+
+ /* Native HTML5 element property wrapping ----------------------------------- */
+ // Wrap native boolean attributes with getters that check both property and attribute
+ // The list is as followed:
+ // muted, defaultMuted, autoplay, controls, loop, playsinline
+ [
+ /**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+ 'controls',
+
+ /**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+ });
+
+ // Wrap native boolean attributes with setters that set both property and attribute
+ // The list is as followed:
+ // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+ // setControls is special-cased above
+ [
+ /**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+ });
+
+ // Wrap native properties with a getter
+ // The list is as followed
+ // paused, currentTime, buffered, volume, poster, preload, error, seeking
+ // seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+ // readyState, videoWidth, videoHeight
+ [
+ /**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+ 'paused',
+
+ /**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+ 'currentTime',
+
+ /**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+ 'buffered',
+
+ /**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+ 'poster',
+
+ /**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+ 'error',
+
+ /**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+ 'seeking',
+
+ /**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+ 'seekable',
+
+ /**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+ 'ended',
+
+ /**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'defaultPlaybackRate',
+
+ /**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+ 'played',
+
+ /**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+ 'networkState',
+
+ /**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+ 'readyState',
+
+ /**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoWidth',
+
+ /**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+ });
+
+ // Wrap native properties with a setter in this format:
+ // set + toTitleCase(name)
+ // The list is as follows:
+ // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+ [
+ /**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+ 'src',
+
+ /**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+ 'poster',
+
+ /**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+ 'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+ });
+
+ // wrap native functions with a function
+ // The list is as follows:
+ // pause, load, play
+ [
+ /**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+ 'pause',
+
+ /**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+ 'load',
+
+ /**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+ 'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+ });
+
+ Tech.withSourceHandlers(Html5);
+
+ /**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+ Html5.nativeSourceHandler = {};
+
+ /**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+ };
+
+ /**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+ Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type);
+
+ // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+
+ return Html5.nativeSourceHandler.canPlayType('video/' + ext);
+ }
+
+ return '';
+ };
+
+ /**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+ Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+ };
+
+ /**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+ Html5.nativeSourceHandler.dispose = function () {};
+
+ // Register the native source handler
+ Html5.registerSourceHandler(Html5.nativeSourceHandler);
+
+ Tech.registerTech('Html5', Html5);
+
+ var _templateObject$2 = taggedTemplateLiteralLoose(['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n '], ['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n ']);
+
+ // The following tech events are simply re-triggered
+ // on the player when they happen
+ var TECH_EVENTS_RETRIGGER = [
+ /**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+ 'progress',
+
+ /**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+ 'abort',
+
+ /**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+ 'suspend',
+
+ /**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+ 'emptied',
+ /**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+ 'stalled',
+
+ /**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+ 'loadedmetadata',
+
+ /**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+ /**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+ 'loadeddata',
+
+ /**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+ /**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+ 'timeupdate',
+
+ /**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+ /**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+ 'resize',
+
+ /**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+ 'volumechange',
+
+ /**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+ 'texttrackchange'];
+
+ // events to queue when playback rate is zero
+ // this is a hash for the sole purpose of mapping non-camel-cased event names
+ // to camel-cased function names
+ var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+ };
+
+ /**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+ var Player = function (_Component) {
+ inherits(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ classCallCheck(this, Player);
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || 'vjs_video_' + newGUID();
+
+ // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+ options = assign(Player.getTagSettings(tag), options);
+
+ // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+ options.initChildren = false;
+
+ // Same with creating the element
+ options.createEl = false;
+
+ // don't auto mixin the evented mixin
+ options.evented = false;
+
+ // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+ options.reportTouchActivity = false;
+
+ // If language is not set, get the closest lang attribute
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+ element = element.parentNode;
+ }
+ }
+ }
+
+ // Run base component initializing with new options
+
+ // Tracks when a tech changes the poster
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.isPosterFromTech_ = false;
+
+ // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+ _this.queuedCallbacks_ = [];
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ _this.isReady_ = false;
+
+ // Init state hasStarted_
+ _this.hasStarted_ = false;
+
+ // Init state userActive_
+ _this.userActive_ = false;
+
+ // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ }
+
+ // Store the original tag used to set options
+ _this.tag = tag;
+
+ // Store the tag attributes used to restore html5 element
+ _this.tagAttributes = tag && getAttributes(tag);
+
+ // Update current language
+ _this.language(_this.options_.language);
+
+ // Update Supported Languages
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+
+ Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {
+ languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ // Cache for video property values.
+ _this.cache_ = {};
+
+ // Set poster
+ _this.poster_ = options.poster || '';
+
+ // Set controls
+ _this.controls_ = !!options.controls;
+
+ // Set default values for lastVolume
+ _this.cache_.lastVolume = 1;
+
+ // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+ tag.controls = false;
+ tag.removeAttribute('controls');
+
+ // the attribute overrides the option
+ if (tag.hasAttribute('autoplay')) {
+ _this.options_.autoplay = true;
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ }
+
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+ _this.scrubbing_ = false;
+
+ _this.el_ = _this.createEl();
+
+ // Set default value for lastPlaybackRate
+ _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();
+
+ // Make this an evented object and use `el_` as its event bus.
+ evented(_this, { eventBusKey: 'el_' });
+
+ // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+ var playerOptionsCopy = mergeOptions(_this.options_);
+
+ // Load plugins
+ if (options.plugins) {
+ var plugins = options.plugins;
+
+ Object.keys(plugins).forEach(function (name$$1) {
+ if (typeof this[name$$1] === 'function') {
+ this[name$$1](plugins[name$$1]);
+ } else {
+ throw new Error('plugin "' + name$$1 + '" does not exist');
+ }
+ }, _this);
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+
+ _this.middleware_ = [];
+
+ _this.initChildren();
+
+ // Set isAudio based on whether or not an audio tag was used
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+ // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ }
+
+ // Set ARIA label and region role depending on player type
+ _this.el_.setAttribute('role', 'region');
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ }
+
+ // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // if (browser.TOUCH_ENABLED) {
+ // this.addClass('vjs-touch-enabled');
+ // }
+
+ // iOS Safari has broken hover handling
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ }
+
+ // Make player easily findable by ID
+ Player.players[_this.id_] = _this;
+
+ // Add a major version class to aid css in plugins
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass('vjs-v' + majorVersion);
+
+ // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+ _this.userActive(true);
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+ _this.on('fullscreenchange', _this.handleFullscreenChange_);
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.changingSrc_ = false;
+ _this.playWaitingForReady_ = false;
+ _this.playOnLoadstart_ = null;
+ return _this;
+ }
+
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ Player.prototype.dispose = function dispose() {
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose');
+ // prevent dispose from being called twice
+ this.off('dispose');
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ }
+
+ // Kill reference to this player
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this);
+
+ // the actual .el_ is removed here
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ Player.prototype.createEl = function createEl$$1() {
+ var tag = this.tag;
+ var el = void 0;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ }
+
+ // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document_1.createElement('video');
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+
+ playerElIngest = this.playerElIngest_ = el;
+ // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+ Object.keys(el).forEach(function (k) {
+ tag[k] = el[k];
+ });
+ }
+
+ // set tabindex to -1 to remove the video element from the focus order
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1';
+
+ // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 if JAWS is not being used
+ if (IE_VERSION) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ }
+
+ // Remove width/height attrs from tag so CSS can make it 100% width/height
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ });
+
+ // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech';
+
+ // Make player findable on elements
+ tag.player = el.player = this;
+ // Default state of video is paused
+ this.addClass('vjs-paused');
+
+ // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ // Pass in the width/height/aspectRatio options which will update the style el
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio);
+
+ // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ }
+
+ // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+ tag.initNetworkState_ = tag.networkState;
+
+ // Wrap video tag in div (el/box) container
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ }
+
+ // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+ prependTo(tag, el);
+ this.children_.unshift(tag);
+
+ // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+ this.el_.setAttribute('lang', this.language_);
+
+ this.el_ = el;
+
+ return el;
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+
+
+ Player.prototype.width = function width(value) {
+ return this.dimension('width', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+
+
+ Player.prototype.height = function height(value) {
+ return this.dimension('height', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+
+
+ Player.prototype.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log$1.error('Improper value "' + value + '" supplied for for ' + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ };
+
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will toggle the fluid class.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+
+
+ Player.prototype.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+
+
+ Player.prototype.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ }
+
+ // Check for width:height format
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+ this.aspectRatio_ = ratio;
+
+ // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+ this.fluid(true);
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+
+
+ Player.prototype.updateStyleEl_ = function updateStyleEl_() {
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width = void 0;
+ var height = void 0;
+ var aspectRatio = void 0;
+ var idClass = void 0;
+
+ // The aspect ratio is either used directly or to calculate width and height.
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ }
+
+ // Get the ratio as a decimal we can use to calculate dimensions
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ }
+
+ // Ensure the CSS class is valid by starting with an alpha character
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ }
+
+ // Ensure the right class is still on the player for the style element
+ this.addClass(idClass);
+
+ setTextContent(this.styleEl_, '\n .' + idClass + ' {\n width: ' + width + 'px;\n height: ' + height + 'px;\n }\n\n .' + idClass + '.vjs-fluid {\n padding-top: ' + ratioMultiplier * 100 + '%;\n }\n ');
+ };
+
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+
+
+ Player.prototype.loadTech_ = function loadTech_(techName, source) {
+ var _this2 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+ // get rid of the HTML5 video tag as soon as we are using another tech
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName;
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ this.isReady_ = false;
+
+ // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();
+
+ // Grab tech-specific options from player options and add source and parent element to use.
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + '_' + camelTechName + '_api',
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset
+ };
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ techOptions[props.getterName] = _this2[props.privateName];
+ });
+
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ }
+
+ // Initialize tech instance
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error('No Tech named \'' + titleTechName + '\' exists! \'' + titleTechName + '\' should be registered using videojs.registerTech()\'');
+ }
+
+ this.tech_ = new TechClass(techOptions);
+
+ // player.triggerReady is always async, so don't need this to be async
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+ // Listen to all HTML5-defined events and trigger them on the player
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);
+ });
+
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this2.on(_this2.tech_, event, function (eventObj) {
+ if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {
+ _this2.queuedCallbacks_.push({
+ callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),
+ event: eventObj
+ });
+ return;
+ }
+ _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);
+ });
+ });
+
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+
+ // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ }
+
+ // Get rid of the original video tag reference after the first tech is loaded
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ };
+
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+
+
+ Player.prototype.unloadTech_ = function unloadTech_() {
+ var _this3 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ _this3[props.privateName] = _this3[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+
+ this.isReady_ = false;
+
+ this.tech_.dispose();
+
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ };
+
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+
+
+ Player.prototype.tech = function tech(safety) {
+ if (safety === undefined) {
+ log$1.warn(tsml(_templateObject$2));
+ }
+
+ return this.tech_;
+ };
+
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+
+
+ Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_();
+
+ // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+ this.on(this.tech_, 'mousedown', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+
+ // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);
+
+ // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ };
+
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+
+
+ Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mousedown', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ };
+
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+
+
+ Player.prototype.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady();
+
+ // Keep the same volume as before
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ }
+
+ // Look if the tech found a higher resolution poster while loading
+ this.handleTechPosterChange_();
+
+ // Update the duration if available
+ this.handleTechDurationChange_();
+ };
+
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking');
+
+ // reset the error state
+ this.error(null);
+
+ // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ }
+
+ // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+ this.manualAutoplay_(this.autoplay());
+ };
+
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+
+
+ Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this4 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this4.muted();
+
+ _this4.muted(true);
+
+ var playPromise = _this4.play();
+
+ if (!playPromise || !playPromise.then || !playPromise.catch) {
+ return;
+ }
+
+ return playPromise.catch(function (e) {
+ // restore old value of muted on failure
+ _this4.muted(previouslyMuted);
+ });
+ };
+
+ var promise = void 0;
+
+ if (type === 'any') {
+ promise = this.play();
+
+ if (promise && promise.then && promise.catch) {
+ promise.catch(function () {
+ return muted();
+ });
+ }
+ } else if (type === 'muted') {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!promise || !promise.then || !promise.catch) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this4.trigger({ type: 'autoplay-success', autoplay: type });
+ }).catch(function (e) {
+ _this4.trigger({ type: 'autoplay-failure', autoplay: type });
+ });
+ };
+
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+
+
+ Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {
+ var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ }
+
+ // if we are a blob url, don't update the source cache
+ // blob urls can arise when playback is done via Media Source Extension (MSE)
+ // such as m3u8 sources with @videojs/http-streaming (VHS)
+ if (/^blob:/.test(src)) {
+ return;
+ }
+
+ // make sure all the caches are set to default values
+ // to prevent null checking
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || [];
+
+ // try to get the type of the src that was passed in
+ if (src && !type) {
+ type = findMimetype(this, src);
+ }
+
+ // update `currentSource` cache always
+ this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });
+
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ }
+
+ // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources;
+ // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ }
+
+ // update the tech `src` cache
+ this.cache_.src = src;
+ };
+
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+
+
+ Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this5 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ // update the source to the intial source right away
+ // in some cases this will be empty string
+ this.updateSourceCaches_(event.src);
+
+ // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+ // as this function will be called again.
+ if (!event.src) {
+ var updateCache = function updateCache(e) {
+ if (e.type !== 'sourceset') {
+ _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));
+ }
+
+ _this5.tech_.off(['sourceset', 'loadstart'], updateCache);
+ };
+
+ this.tech_.one(['sourceset', 'loadstart'], updateCache);
+ }
+ }
+
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ };
+
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+
+
+ Player.prototype.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ };
+
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+
+ // hide the poster when the user hits play
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+ this.trigger('play');
+ };
+
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+
+
+ Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+ this.trigger('ratechange');
+ };
+
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+
+
+ Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this6 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+ this.trigger('waiting');
+ this.one('timeupdate', function () {
+ return _this6.removeClass('vjs-waiting');
+ });
+ };
+
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplay');
+ };
+
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplaythrough');
+ };
+
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+ this.trigger('playing');
+ };
+
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeking');
+ };
+
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeked');
+ };
+
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+
+
+ Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+ this.trigger('firstplay');
+ };
+
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+
+
+ Player.prototype.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+ this.trigger('pause');
+ };
+
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+
+
+ Player.prototype.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ended');
+ };
+
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ };
+
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mousedown
+ * @private
+ */
+
+
+ Player.prototype.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ };
+
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+
+
+ Player.prototype.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ }
+
+ // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ };
+
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+
+
+ Player.prototype.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ };
+
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ };
+
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ };
+
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ };
+
+ /**
+ * Fired when the player switches in or out of fullscreen mode
+ *
+ * @private
+ * @listens Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ };
+
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+
+
+ Player.prototype.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ };
+
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ };
+
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+
+
+ Player.prototype.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+
+ this.error(error);
+ };
+
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+
+
+ Player.prototype.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+ this.trigger('textdata', data);
+ };
+
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+
+
+ Player.prototype.getCache = function getCache() {
+ return this.cache_;
+ };
+
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+
+
+ Player.prototype.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set$1(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log$1(e);
+ throw e;
+ }
+ }, true);
+ };
+
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+
+
+ Player.prototype.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get$1(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ }
+
+ // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);
+ throw e;
+ }
+
+ // When a method isn't available on the object it throws a TypeError
+ if (e.name === 'TypeError') {
+ log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);
+ this.tech_.isReady_ = false;
+ throw e;
+ }
+
+ // If error unknown, just log and throw
+ log$1(e);
+ throw e;
+ }
+ };
+
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+
+
+ Player.prototype.play = function play() {
+ var _this7 = this;
+
+ var PromiseClass = this.options_.Promise || window_1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this7.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ };
+
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+
+
+ Player.prototype.play_ = function play_() {
+ var _this8 = this;
+
+ var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;
+
+ // If this is called while we have a play queued up on a loadstart, remove
+ // that listener to avoid getting in a potentially bad state.
+ if (this.playOnLoadstart_) {
+ this.off('loadstart', this.playOnLoadstart_);
+ }
+
+ // If the player/tech is not ready, queue up another call to `play()` for
+ // when it is. This will loop back into this method for another attempt at
+ // playback when the tech is ready.
+ if (!this.isReady_) {
+
+ // Bail out if we're already waiting for `ready`!
+ if (this.playWaitingForReady_) {
+ return;
+ }
+
+ this.playWaitingForReady_ = true;
+ this.ready(function () {
+ _this8.playWaitingForReady_ = false;
+ callback(_this8.play());
+ });
+
+ // If the player/tech is ready and we have a source, we can attempt playback.
+ } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {
+ callback(this.techGet_('play'));
+ return;
+
+ // If the tech is ready, but we do not have a source, we'll need to wait
+ // for both the `ready` and a `loadstart` when the source is finally
+ // resolved by middleware and set on the player.
+ //
+ // This can happen if `play()` is called while changing sources or before
+ // one has been set on the player.
+ } else {
+
+ this.playOnLoadstart_ = function () {
+ _this8.playOnLoadstart_ = null;
+ callback(_this8.play());
+ };
+
+ this.one('loadstart', this.playOnLoadstart_);
+ }
+ };
+
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+
+
+ Player.prototype.pause = function pause() {
+ this.techCall_('pause');
+ };
+
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+
+
+ Player.prototype.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ };
+
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+
+
+ Player.prototype.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ };
+
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+
+
+ Player.prototype.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ };
+
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+
+
+ Player.prototype.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ }
+
+ // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ };
+
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+
+
+ Player.prototype.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds);
+
+ // Standardize on Infinity for signaling video is live
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+ } else {
+ this.removeClass('vjs-live');
+ }
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ };
+
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ };
+
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ };
+
+ //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+
+
+ Player.prototype.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ };
+
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+
+
+ Player.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ };
+
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+
+
+ Player.prototype.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ };
+
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+
+
+ Player.prototype.volume = function volume(percentAsDecimal) {
+ var vol = void 0;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ }
+
+ // Default to 1 when returning current volume.
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ };
+
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+
+
+ Player.prototype.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+ return this.techGet_('muted') || false;
+ };
+
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+
+
+ Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+ return this.techGet_('defaultMuted') || false;
+ };
+
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+
+
+ Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+ return this.cache_.lastVolume;
+ };
+
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+
+
+ Player.prototype.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ };
+
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+
+
+ Player.prototype.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ return;
+ }
+ return !!this.isFullscreen_;
+ };
+
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.requestFullscreen = function requestFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(true);
+
+ if (fsApi.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document_1, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {
+ this.isFullscreen(document_1[fsApi.fullscreenElement]);
+
+ // If cancelling fullscreen, remove event listener.
+ if (this.isFullscreen() === false) {
+ off(document_1, fsApi.fullscreenchange, documentFullscreenChange);
+ }
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }));
+
+ this.el_[fsApi.requestFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.exitFullscreen = function exitFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(false);
+
+ // Check for browser element fullscreen support
+ if (fsApi.requestFullscreen) {
+ document_1[fsApi.exitFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+
+
+ Player.prototype.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true;
+
+ // Storing original doc overflow value to return to when fullscreen is off
+ this.docOrigOverflow = document_1.documentElement.style.overflow;
+
+ // Add listener for esc key to exit fullscreen
+ on(document_1, 'keydown', bind(this, this.fullWindowOnEscKey));
+
+ // Hide any scroll bars
+ document_1.documentElement.style.overflow = 'hidden';
+
+ // Apply fullscreen styles
+ addClass(document_1.body, 'vjs-full-window');
+
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enterFullWindow');
+ };
+
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+
+
+ Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (event.keyCode === 27) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ };
+
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+
+
+ Player.prototype.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document_1, 'keydown', this.fullWindowOnEscKey);
+
+ // Unhide scroll bars.
+ document_1.documentElement.style.overflow = this.docOrigOverflow;
+
+ // Remove fullscreen styles
+ removeClass(document_1.body, 'vjs-full-window');
+
+ // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('exitFullWindow');
+ };
+
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Player.prototype.canPlayType = function canPlayType(type) {
+ var can = void 0;
+
+ // Loop through each playback technology in the options order
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the current tech is defined before continuing
+ if (!tech) {
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ continue;
+ }
+
+ // Check if the browser supports this technology
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+
+
+ Player.prototype.selectSource = function selectSource(sources) {
+ var _this9 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ return false;
+ });
+
+ // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found = void 0;
+
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+
+ return found;
+ };
+
+ var foundSourceAndTech = void 0;
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {
+ return { source: source, tech: techName };
+ }
+ };
+
+ // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ };
+
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+
+
+ Player.prototype.src = function src(source) {
+ var _this10 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ }
+ // filter out invalid sources and turn our source into
+ // an array of source objects
+ var sources = filterSource(source);
+
+ // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+ return;
+ }
+
+ // intial sources
+ this.changingSrc_ = true;
+
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]);
+
+ // middlewareSource is the source after it has been changed by middleware
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this10.middleware_ = mws;
+
+ // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+ _this10.cache_.sources = sources;
+ _this10.updateSourceCaches_(middlewareSource);
+
+ var err = _this10.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this10.src(sources.slice(1));
+ }
+
+ _this10.changingSrc_ = false;
+
+ // We need to wrap this in a timeout to give folks a chance to add error event handlers
+ _this10.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+
+ // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+ _this10.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this10.tech_);
+ });
+ };
+
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {Boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+
+
+ Player.prototype.src_ = function src_(source) {
+ var _this11 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true;
+ // load this technology with the chosen source
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this11.changingSrc_ = false;
+ });
+ return false;
+ }
+
+ // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+ this.ready(function () {
+
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+
+ return false;
+ };
+
+ /**
+ * Begin loading the src data.
+ */
+
+
+ Player.prototype.load = function load() {
+ this.techCall_('load');
+ };
+
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * and calls `reset` on the tech`.
+ */
+
+
+ Player.prototype.reset = function reset() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ };
+
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+
+
+ Player.prototype.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = [];
+
+ // assume `{}` or `{ src }`
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ };
+
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+
+
+ Player.prototype.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ };
+
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+
+
+ Player.prototype.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ };
+
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+
+
+ Player.prototype.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ };
+
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+
+
+ Player.prototype.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+ return this.techGet_('preload');
+ };
+
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+
+
+ Player.prototype.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay = void 0;
+
+ // if the value is a valid string set it to that
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false;
+
+ // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false;
+
+ // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = techAutoplay || this.options_.autoplay;
+
+ // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ };
+
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+
+
+ Player.prototype.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+ return this.techGet_('playsinline');
+ };
+
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {string}
+ * The current value of loop when getting
+ */
+
+
+ Player.prototype.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+ return this.techGet_('loop');
+ };
+
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+
+
+ Player.prototype.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ }
+
+ // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ }
+
+ // update the internal poster variable
+ this.poster_ = src;
+
+ // update the tech's poster
+ this.techCall_('setPoster', src);
+
+ this.isPosterFromTech_ = false;
+
+ // alert components that the poster has been set
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('posterchange');
+ };
+
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true;
+
+ // Let components know the poster has changed
+ this.trigger('posterchange');
+ }
+ }
+ };
+
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+
+
+ Player.prototype.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsenabled');
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsdisabled');
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ };
+
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+
+
+ Player.prototype.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingcustomcontrols');
+ }
+ };
+
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+
+
+ Player.prototype.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ }
+
+ // restoring to default
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+ return;
+ }
+
+ this.error_ = new MediaError(err);
+
+ // add the vjs-error classname to the player
+ this.addClass('vjs-error');
+
+ // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+ log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);
+
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+ this.trigger('error');
+
+ return;
+ };
+
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+
+
+ Player.prototype.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ };
+
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+
+
+ Player.prototype.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('useractive');
+ return;
+ }
+
+ // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('userinactive');
+ };
+
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+
+
+ Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress = void 0;
+ var lastMoveX = void 0;
+ var lastMoveY = void 0;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(mouseInProgress);
+ // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity();
+ // Stop the interval that maintains activity if the mouse/touch is down
+ this.clearInterval(mouseInProgress);
+ };
+
+ // Any mouse movement will be considered user activity
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+
+ // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity);
+
+ // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+ var inactivityTimeout = void 0;
+
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ }
+
+ // Reset the activity tracker
+ this.userActivity_ = false;
+
+ // If the user state was inactive, set the state to active
+ this.userActive(true);
+
+ // Clear any existing inactivity timeout to start the timer over
+ this.clearTimeout(inactivityTimeout);
+
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ }
+
+ // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ };
+
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+
+
+ Player.prototype.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+
+
+ Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+
+
+ Player.prototype.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ };
+
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+
+
+ Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ };
+
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ };
+
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+
+
+ Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {
+ var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ _ref3$track = _ref3.track,
+ track = _ref3$track === undefined ? arguments[0] : _ref3$track;
+
+ // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+
+
+ Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ };
+
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+
+
+ Player.prototype.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ };
+
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+
+
+ Player.prototype.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ };
+
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+
+
+ Player.prototype.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ };
+
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+
+
+ Player.prototype.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ };
+
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+
+
+ Player.prototype.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // deep merge tracks and null out player so no circular references
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ };
+
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+
+
+ Player.prototype.createModal = function createModal(content, options) {
+ var _this12 = this;
+
+ options = options || {};
+ options.content = content || '';
+
+ var modal = new ModalDialog(this, options);
+
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this12.removeChild(modal);
+ });
+
+ modal.open();
+ return modal;
+ };
+
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ }
+
+ // Check if data-setup attr exists.
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = tuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log$1.error(err);
+ }
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions);
+
+ // Get tag children settings
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i];
+ // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ };
+
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+
+
+ Player.prototype.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document_1.createElement('i');
+
+ // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||
+ // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+ /**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ }
+
+ // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * Global player list
+ *
+ * @type {Object}
+ */
+ Player.players = {};
+
+ var navigator = window_1.navigator;
+
+ /*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+ Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+
+ html5: {},
+ flash: {},
+
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+
+ // locales and their language translations
+ languages: {},
+
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.'
+ };
+
+ [
+ /**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+ 'ended',
+ /**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+ 'seeking',
+ /**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+ 'seekable',
+ /**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+ 'networkState',
+ /**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+ 'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+ });
+
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {
+ return this.trigger(event);
+ };
+ });
+
+ /**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+ /**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+ Component.registerComponent('Player', Player);
+
+ /**
+ * @file plugin.js
+ */
+
+ /**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var BASE_PLUGIN_NAME = 'plugin';
+
+ /**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var PLUGIN_CACHE_KEY = 'activePlugins_';
+
+ /**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+ var pluginStorage = {};
+
+ /**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {boolean}
+ * Whether or not the plugin has been registered.
+ */
+ var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+ };
+
+ /**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or undefined).
+ */
+ var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+ };
+
+ /**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+ var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+ };
+
+ /**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {Boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+ var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+ };
+
+ /**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @returns {Function}
+ * A wrapper function for the given plugin.
+ */
+ var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);
+
+ var instance = plugin.apply(this, arguments);
+
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });
+
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+
+ return basicPluginWrapper;
+ };
+
+ /**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @returns {Function}
+ */
+ var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+
+ return function () {
+ triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();
+
+ // The plugin is replaced by a function that returns the current instance.
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+
+ return instance;
+ };
+ };
+
+ /**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+ var Plugin = function () {
+
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ classCallCheck(this, Plugin);
+
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player;
+
+ // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+ evented(this);
+ delete this.trigger;
+
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name);
+
+ // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+ this.dispose = bind(this, this.dispose);
+
+ // If the player is disposed, dispose the plugin.
+ player.on('dispose', this.dispose);
+ }
+
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ Plugin.prototype.version = function version() {
+ return this.constructor.VERSION;
+ };
+
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @returns {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+
+
+ Plugin.prototype.getEventHash = function getEventHash() {
+ var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ };
+
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @returns {boolean}
+ * Whether or not default was prevented.
+ */
+
+
+ Plugin.prototype.trigger = function trigger$$1(event) {
+ var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ };
+
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+
+
+ Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};
+
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+
+
+ Plugin.prototype.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose);
+
+ // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null;
+
+ // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ };
+
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @returns {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ };
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @returns {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error('Illegal plugin name, "' + name + '", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');
+ }
+
+ if (pluginExists(name)) {
+ log$1.warn('A plugin named "' + name + '" already exists. You may want to avoid re-registering plugins!');
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error('Illegal plugin name, "' + name + '", cannot share a name with an existing player method!');
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error('Illegal plugin for "' + name + '", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');
+ }
+
+ pluginStorage[name] = plugin;
+
+ // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ };
+
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered.
+ */
+
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @returns {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+
+
+ Plugin.getPlugins = function getPlugins() {
+ var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);
+
+ var result = void 0;
+
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+
+ return result;
+ };
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {string}
+ * The plugin's version or an empty string.
+ */
+
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+ }();
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+ Plugin.getPlugin = getPlugin;
+
+ /**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+ Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+
+ Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+ };
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+ };
+
+ /**
+ * @file extend.js
+ * @module extend
+ */
+
+ /**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+ var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+ };
+
+ /**
+ * Function for subclassing using the same inheritance that
+ * videojs uses internally
+ *
+ * @static
+ * @const
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * The class to inherit to
+ *
+ * @return {Object}
+ * The new object with subClassMethods that inherited superClass.
+ */
+ var extendFn = function extendFn(superClass) {
+ var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass);
+
+ // Extend subObj's prototype with functions and other properties from props
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+ };
+
+ /**
+ * @file video.js
+ * @module videojs
+ */
+
+ /**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @returns {string}
+ * The string, without any leading `#`.
+ */
+ var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+ };
+
+ /**
+ * Doubles as the main function for users to create a player instance and also
+ * the main library object.
+ * The `videojs` function can be used to initialize or retrieve a player.
+ *
+ * @param {string|Element} id
+ * Video element or video element ID
+ *
+ * @param {Object} [options]
+ * Optional options object for config/settings
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Optional ready callback
+ *
+ * @return {Player}
+ * A player instance
+ */
+ function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log$1.warn('Player "' + id + '" is already initialised. Options will not be applied.');
+ }
+ if (ready) {
+ player.ready(ready);
+ }
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ }
+
+ if (!document_1.body.contains(el)) {
+ log$1.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log$1.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ });
+
+ // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+ var PlayerComponent = Component.getComponent('Player');
+
+ player = new PlayerComponent(el, options, ready);
+
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+
+ return player;
+ }
+
+ /**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ */
+ videojs$1.hooks_ = {};
+
+ /**
+ * Get a list of hooks for a specific lifecycle
+ * @function videojs.hooks
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+ videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+ return videojs$1.hooks_[type];
+ };
+
+ /**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+ };
+
+ /**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(undefined, arguments);
+ };
+
+ return wrapper;
+ }));
+ };
+
+ /**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+ videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+
+ return true;
+ };
+
+ // Add default styles
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style$1 = $('.vjs-styles-defaults');
+
+ if (!style$1) {
+ style$1 = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style$1, head.firstChild);
+ }
+ setTextContent(style$1, '\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ');
+ }
+ }
+
+ // Run Auto-load players
+ // You have to wait at least once in case this script is loaded after your
+ // video in the DOM (weird behavior only with minified version)
+ autoSetupTimeout(1, videojs$1);
+
+ /**
+ * Current software version. Follows semver.
+ *
+ * @type {string}
+ */
+ videojs$1.VERSION = version;
+
+ /**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+ videojs$1.options = Player.prototype.options_;
+
+ /**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+ videojs$1.getPlayers = function () {
+ return Player.players;
+ };
+
+ /**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @returns {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+ videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag = void 0;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId;
+
+ // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+ };
+
+ /**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+ videojs$1.getAllPlayers = function () {
+ return (
+
+ // Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+ };
+
+ /**
+ * Expose players object.
+ *
+ * @memberOf videojs
+ * @property {Object} players
+ */
+ videojs$1.players = Player.players;
+
+ /**
+ * Get a component class object by name
+ *
+ * @borrows Component.getComponent as videojs.getComponent
+ */
+ videojs$1.getComponent = Component.getComponent;
+
+ /**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+ videojs$1.registerComponent = function (name$$1, comp) {
+ if (Tech.isTech(comp)) {
+ log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');
+ }
+
+ Component.registerComponent.call(Component, name$$1, comp);
+ };
+
+ /**
+ * Get a Tech class object by name
+ *
+ * @borrows Tech.getTech as videojs.getTech
+ */
+ videojs$1.getTech = Tech.getTech;
+
+ /**
+ * Register a Tech so it can referred to by name.
+ * This is used in the tech order for the player.
+ *
+ * @borrows Tech.registerTech as videojs.registerTech
+ */
+ videojs$1.registerTech = Tech.registerTech;
+
+ /**
+ * Register a middleware to a source type.
+ *
+ * @param {String} type A string representing a MIME type.
+ * @param {function(player):object} middleware A middleware factory that takes a player.
+ */
+ videojs$1.use = use;
+
+ /**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @memberOf {videojs}
+ * @property {object} middleware.TERMINATOR
+ */
+ Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+ });
+
+ Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+ });
+
+ /**
+ * A suite of browser and device tests from {@link browser}.
+ *
+ * @type {Object}
+ * @private
+ */
+ videojs$1.browser = browser;
+
+ /**
+ * Whether or not the browser supports touch events. Included for backward
+ * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`
+ * instead going forward.
+ *
+ * @deprecated since version 5.0
+ * @type {boolean}
+ */
+ videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+
+ /**
+ * Subclass an existing class
+ * Mimics ES6 subclassing with the `extend` keyword
+ *
+ * @borrows extend:extendFn as videojs.extend
+ */
+ videojs$1.extend = extendFn;
+
+ /**
+ * Merge two options objects recursively
+ * Performs a deep merge like lodash.merge but **only merges plain objects**
+ * (not arrays, elements, anything else)
+ * Other values will be copied directly from the second object.
+ *
+ * @borrows merge-options:mergeOptions as videojs.mergeOptions
+ */
+ videojs$1.mergeOptions = mergeOptions;
+
+ /**
+ * Change the context (this) of a function
+ *
+ * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native
+ * `function() {}.bind(newContext);` instead of this.
+ *
+ * @borrows fn:bind as videojs.bind
+ */
+ videojs$1.bind = bind;
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @borrows plugin:registerPlugin as videojs.registerPlugin
+ * @method registerPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+ videojs$1.registerPlugin = Plugin.registerPlugin;
+
+ /**
+ * Deregister a Video.js plugin.
+ *
+ * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin
+ * @method deregisterPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered. Must be a string and
+ * must match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ */
+ videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+
+ /**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated
+ * videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+ videojs$1.plugin = function (name$$1, plugin) {
+ log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name$$1, plugin);
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+ videojs$1.getPlugins = Plugin.getPlugins;
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+ videojs$1.getPlugin = Plugin.getPlugin;
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+ videojs$1.getPluginVersion = Plugin.getPluginVersion;
+
+ /**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+ videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+
+ return videojs$1.options.languages[code];
+ };
+
+ /**
+ * Log messages
+ *
+ * @borrows log:log as videojs.log
+ */
+ videojs$1.log = log$1;
+
+ /**
+ * Creates an emulated TimeRange object.
+ *
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRange
+ */
+ /**
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges
+ */
+ videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide
+ *
+ * @borrows format-time:formatTime as videojs.formatTime
+ */
+ videojs$1.formatTime = formatTime;
+
+ /**
+ * Replaces format-time with a custom implementation, to be used in place of the default.
+ *
+ * @borrows format-time:setFormatTime as videojs.setFormatTime
+ *
+ * @method setFormatTime
+ *
+ * @param {Function} customFn
+ * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.
+ * Passed fn should return a string.
+ */
+ videojs$1.setFormatTime = setFormatTime;
+
+ /**
+ * Resets format-time to the default implementation.
+ *
+ * @borrows format-time:resetFormatTime as videojs.resetFormatTime
+ *
+ * @method resetFormatTime
+ */
+ videojs$1.resetFormatTime = resetFormatTime;
+
+ /**
+ * Resolve and parse the elements of a URL
+ *
+ * @borrows url:parseUrl as videojs.parseUrl
+ *
+ */
+ videojs$1.parseUrl = parseUrl;
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @borrows url:isCrossOrigin as videojs.isCrossOrigin
+ */
+ videojs$1.isCrossOrigin = isCrossOrigin;
+
+ /**
+ * Event target class.
+ *
+ * @borrows EventTarget as videojs.EventTarget
+ */
+ videojs$1.EventTarget = EventTarget;
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @borrows events:on as videojs.on
+ */
+ videojs$1.on = on;
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @borrows events:one as videojs.one
+ */
+ videojs$1.one = one;
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @borrows events:off as videojs.off
+ */
+ videojs$1.off = off;
+
+ /**
+ * Trigger an event for an element
+ *
+ * @borrows events:trigger as videojs.trigger
+ */
+ videojs$1.trigger = trigger;
+
+ /**
+ * A cross-browser XMLHttpRequest wrapper. Here's a simple example:
+ *
+ * @param {Object} options
+ * settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+ videojs$1.xhr = xhr;
+
+ /**
+ * TextTrack class
+ *
+ * @borrows TextTrack as videojs.TextTrack
+ */
+ videojs$1.TextTrack = TextTrack;
+
+ /**
+ * export the AudioTrack class so that source handlers can create
+ * AudioTracks and then add them to the players AudioTrackList
+ *
+ * @borrows AudioTrack as videojs.AudioTrack
+ */
+ videojs$1.AudioTrack = AudioTrack;
+
+ /**
+ * export the VideoTrack class so that source handlers can create
+ * VideoTracks and then add them to the players VideoTrackList
+ *
+ * @borrows VideoTrack as videojs.VideoTrack
+ */
+ videojs$1.VideoTrack = VideoTrack;
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @borrows dom:isEl as videojs.isEl
+ * @deprecated Use videojs.dom.isEl() instead
+ */
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @borrows dom:isTextNode as videojs.isTextNode
+ * @deprecated Use videojs.dom.isTextNode() instead
+ */
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @borrows dom:createEl as videojs.createEl
+ * @deprecated Use videojs.dom.createEl() instead
+ */
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @borrows dom:hasElClass as videojs.hasClass
+ * @deprecated Use videojs.dom.hasClass() instead
+ */
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @borrows dom:addElClass as videojs.addClass
+ * @deprecated Use videojs.dom.addClass() instead
+ */
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @borrows dom:removeElClass as videojs.removeClass
+ * @deprecated Use videojs.dom.removeClass() instead
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @borrows dom:toggleElClass as videojs.toggleClass
+ * @deprecated Use videojs.dom.toggleClass() instead
+ */
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @borrows dom:setElAttributes as videojs.setAttribute
+ * @deprecated Use videojs.dom.setAttributes() instead
+ */
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @borrows dom:getElAttributes as videojs.getAttributes
+ * @deprecated Use videojs.dom.getAttributes() instead
+ */
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @borrows dom:emptyEl as videojs.emptyEl
+ * @deprecated Use videojs.dom.emptyEl() instead
+ */
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:appendContents as videojs.appendContet
+ * @deprecated Use videojs.dom.appendContent() instead
+ */
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:insertContent as videojs.insertContent
+ * @deprecated Use videojs.dom.insertContent() instead
+ */
+ ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');
+ return Dom[k].apply(null, arguments);
+ };
+ });
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is because in Firefox, if the player is loaded in an iframe with `display:none`,
+ * then `getComputedStyle` returns `null`, so, we do a null-check to make sure
+ * that the player doesn't break in these cases.
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.
+ *
+ * @borrows computed-style:computedStyle as videojs.computedStyle
+ */
+ videojs$1.computedStyle = computedStyle;
+
+ /**
+ * Export the Dom utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.dom = Dom;
+
+ /**
+ * Export the Url utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.url = Url;
+
+ return videojs$1;
+
+})));
diff --git a/assets/netcut/lib/videojs/alt/video.core.novtt.min.js b/assets/netcut/lib/videojs/alt/video.core.novtt.min.js
new file mode 100644
index 0000000..079b522
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video.core.novtt.min.js
@@ -0,0 +1,12 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.videojs=e()}(this,function(){var p="7.2.4",t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};var e,d="undefined"!=typeof window?window:"undefined"!=typeof t?t:"undefined"!=typeof self?self:{},n={},r=Object.freeze({default:n}),i=r&&n||r,o="undefined"!=typeof t?t:"undefined"!=typeof window?window:{};"undefined"!=typeof document?e=document:(e=o["__GLOBAL_DOCUMENT_CACHE@4"])||(e=o["__GLOBAL_DOCUMENT_CACHE@4"]=i);var f=e,s=void 0,a="info",l=[],c=function(t,e){var n=s.levels[a],r=new RegExp("^("+n+")$");if("log"!==t&&e.unshift(t.toUpperCase()+":"),l&&l.push([].concat(e)),e.unshift("VIDEOJS:"),d.console){var i=d.console[t];i||"debug"!==t||(i=d.console.info||d.console.log),i&&n&&r.test(t)&&i[Array.isArray(e)?"apply":"call"](d.console,e)}};(s=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];c("log",e)}).levels={all:"debug|log|warn|error",off:"",debug:"debug|log|warn|error",info:"log|warn|error",warn:"warn|error",error:"error",DEFAULT:a},s.level=function(t){if("string"==typeof t){if(!s.levels.hasOwnProperty(t))throw new Error('"'+t+'" in not a valid log level');a=t}return a},s.history=function(){return l?[].concat(l):[]},s.history.clear=function(){l&&(l.length=0)},s.history.disable=function(){null!==l&&(l.length=0,l=null)},s.history.enable=function(){null===l&&(l=[])},s.error=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return c("error",e)},s.warn=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return c("warn",e)},s.debug=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return c("debug",e)};var y=s;var v=function(t){for(var e="",n=0;n<arguments.length;n++)e+=t[n].replace(/\n\r?\s*/g,"")+(arguments[n+1]||"");return e},u="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},g=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},m=function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)},_=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e},h=function(t,e){return t.raw=e,t},b=Object.prototype.toString,T=function(t){return E(t)?Object.keys(t):[]};function C(e,n){T(e).forEach(function(t){return n(e[t],t)})}function k(n){for(var t=arguments.length,e=Array(1<t?t-1:0),r=1;r<t;r++)e[r-1]=arguments[r];return Object.assign?Object.assign.apply(Object,[n].concat(e)):(e.forEach(function(t){t&&C(t,function(t,e){n[e]=t})}),n)}function E(t){return!!t&&"object"===("undefined"==typeof t?"undefined":u(t))}function S(t){return E(t)&&"[object Object]"===b.call(t)&&t.constructor===Object}function w(t,e){if(!t||!e)return"";if("function"==typeof d.getComputedStyle){var n=d.getComputedStyle(t);return n?n[e]:""}return""}var x=h(["Setting attributes in the second argument of createEl()\n has been deprecated. 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Object.defineProperty(n,"selected",{get:function(){return r},set:function(t){"boolean"==typeof t&&t!==r&&(r=t,this.trigger("selectedchange"))}}),e.selected&&(n.selected=e.selected),n}return m(o,i),o}(Je),kn=0,En=2,Sn=function(i){function o(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};g(this,o);var e=_(this,i.call(this)),n=void 0,r=new bn(t);return e.kind=r.kind,e.src=r.src,e.srclang=r.language,e.label=r.label,e.default=r.default,Object.defineProperties(e,{readyState:{get:function(){return n}},track:{get:function(){return r}}}),n=kn,r.addEventListener("loadeddata",function(){n=En,e.trigger({type:"load",target:e})}),e}return m(o,i),o}(Mt);Sn.prototype.allowedEvents_={load:"load"},Sn.NONE=kn,Sn.LOADING=1,Sn.LOADED=En,Sn.ERROR=3;var wn={audio:{ListClass:Ve,TrackClass:Tn,capitalName:"Audio"},video:{ListClass:We,TrackClass:Cn,capitalName:"Video"},text:{ListClass:Ue,TrackClass:bn,capitalName:"Text"}};Object.keys(wn).forEach(function(t){wn[t].getterName=t+"Tracks",wn[t].privateName=t+"Tracks_"});var xn={remoteText:{ListClass:Ue,TrackClass:bn,capitalName:"RemoteText",getterName:"remoteTextTracks",privateName:"remoteTextTracks_"},remoteTextEl:{ListClass:qe,TrackClass:Sn,capitalName:"RemoteTextTrackEls",getterName:"remoteTextTrackEls",privateName:"remoteTextTrackEls_"}},jn=Kt(wn,xn);xn.names=Object.keys(xn),wn.names=Object.keys(wn),jn.names=[].concat(xn.names).concat(wn.names);var Pn={};var An=function(e){function i(){var n=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:function(){};g(this,i),n.reportTouchActivity=!1;var r=_(this,e.call(this,null,n,t));return r.hasStarted_=!1,r.on("playing",function(){this.hasStarted_=!0}),r.on("loadstart",function(){this.hasStarted_=!1}),jn.names.forEach(function(t){var e=jn[t];n&&n[e.getterName]&&(r[e.privateName]=n[e.getterName])}),r.featuresProgressEvents||r.manualProgressOn(),r.featuresTimeupdateEvents||r.manualTimeUpdatesOn(),["Text","Audio","Video"].forEach(function(t){!1===n["native"+t+"Tracks"]&&(r["featuresNative"+t+"Tracks"]=!1)}),!1===n.nativeCaptions||!1===n.nativeTextTracks?r.featuresNativeTextTracks=!1:!0!==n.nativeCaptions&&!0!==n.nativeTextTracks||(r.featuresNativeTextTracks=!0),r.featuresNativeTextTracks||r.emulateTextTracks(),r.autoRemoteTextTracks_=new jn.text.ListClass,r.initTrackListeners(),n.nativeControlsForTouch||r.emitTapEvents(),r.constructor&&(r.name_=r.constructor.name||"Unknown Tech"),r}return m(i,e),i.prototype.triggerSourceset=function(t){var e=this;this.isReady_||this.one("ready",function(){return e.setTimeout(function(){return e.triggerSourceset(t)},1)}),this.trigger({src:t,type:"sourceset"})},i.prototype.manualProgressOn=function(){this.on("durationchange",this.onDurationChange),this.manualProgress=!0,this.one("ready",this.trackProgress)},i.prototype.manualProgressOff=function(){this.manualProgress=!1,this.stopTrackingProgress(),this.off("durationchange",this.onDurationChange)},i.prototype.trackProgress=function(t){this.stopTrackingProgress(),this.progressInterval=this.setInterval(Pt(this,function(){var t=this.bufferedPercent();this.bufferedPercent_!==t&&this.trigger("progress"),1===(this.bufferedPercent_=t)&&this.stopTrackingProgress()}),500)},i.prototype.onDurationChange=function(t){this.duration_=this.duration()},i.prototype.buffered=function(){return be(0,0)},i.prototype.bufferedPercent=function(){return Te(this.buffered(),this.duration_)},i.prototype.stopTrackingProgress=function(){this.clearInterval(this.progressInterval)},i.prototype.manualTimeUpdatesOn=function(){this.manualTimeUpdates=!0,this.on("play",this.trackCurrentTime),this.on("pause",this.stopTrackingCurrentTime)},i.prototype.manualTimeUpdatesOff=function(){this.manualTimeUpdates=!1,this.stopTrackingCurrentTime(),this.off("play",this.trackCurrentTime),this.off("pause",this.stopTrackingCurrentTime)},i.prototype.trackCurrentTime=function(){this.currentTimeInterval&&this.stopTrackingCurrentTime(),this.currentTimeInterval=this.setInterval(function(){this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},250)},i.prototype.stopTrackingCurrentTime=function(){this.clearInterval(this.currentTimeInterval),this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},i.prototype.dispose=function(){this.clearTracks(wn.names),this.manualProgress&&this.manualProgressOff(),this.manualTimeUpdates&&this.manualTimeUpdatesOff(),e.prototype.dispose.call(this)},i.prototype.clearTracks=function(t){var i=this;(t=[].concat(t)).forEach(function(t){for(var e=i[t+"Tracks"]()||[],n=e.length;n--;){var r=e[n];"text"===t&&i.removeRemoteTextTrack(r),e.removeTrack(r)}})},i.prototype.cleanupAutoTextTracks=function(){for(var t=this.autoRemoteTextTracks_||[],e=t.length;e--;){var n=t[e];this.removeRemoteTextTrack(n)}},i.prototype.reset=function(){},i.prototype.error=function(t){return void 0!==t&&(this.error_=new je(t),this.trigger("error")),this.error_},i.prototype.played=function(){return this.hasStarted_?be(0,0):be()},i.prototype.setCurrentTime=function(){this.manualTimeUpdates&&this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},i.prototype.initTrackListeners=function(){var i=this;wn.names.forEach(function(t){var e=wn[t],n=function(){i.trigger(t+"trackchange")},r=i[e.getterName]();r.addEventListener("removetrack",n),r.addEventListener("addtrack",n),i.on("dispose",function(){r.removeEventListener("removetrack",n),r.removeEventListener("addtrack",n)})})},i.prototype.addWebVttScript_=function(){var t=this;if(!d.WebVTT)if(f.body.contains(this.el())){if(!this.options_["vtt.js"]&&S(Pn)&&0<Object.keys(Pn).length)return void this.trigger("vttjsloaded");var e=f.createElement("script");e.src=this.options_["vtt.js"]||"https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js",e.onload=function(){t.trigger("vttjsloaded")},e.onerror=function(){t.trigger("vttjserror")},this.on("dispose",function(){e.onload=null,e.onerror=null}),d.WebVTT=!0,this.el().parentNode.appendChild(e)}else this.ready(this.addWebVttScript_)},i.prototype.emulateTextTracks=function(){var t=this,n=this.textTracks(),e=this.remoteTextTracks(),r=function(t){return n.addTrack(t.track)},i=function(t){return n.removeTrack(t.track)};e.on("addtrack",r),e.on("removetrack",i),this.addWebVttScript_();var o=function(){return t.trigger("texttrackchange")},s=function(){o();for(var t=0;t<n.length;t++){var e=n[t];e.removeEventListener("cuechange",o),"showing"===e.mode&&e.addEventListener("cuechange",o)}};s(),n.addEventListener("change",s),n.addEventListener("addtrack",s),n.addEventListener("removetrack",s),this.on("dispose",function(){e.off("addtrack",r),e.off("removetrack",i),n.removeEventListener("change",s),n.removeEventListener("addtrack",s),n.removeEventListener("removetrack",s);for(var t=0;t<n.length;t++){n[t].removeEventListener("cuechange",o)}})},i.prototype.addTextTrack=function(t,e,n){if(!t)throw new Error("TextTrack kind is required but was not provided");return function(t,e,n,r){var i=4<arguments.length&&void 0!==arguments[4]?arguments[4]:{},o=t.textTracks();i.kind=e,n&&(i.label=n),r&&(i.language=r),i.tech=t;var s=new jn.text.TrackClass(i);return o.addTrack(s),s}(this,t,e,n)},i.prototype.createRemoteTextTrack=function(t){var e=Kt(t,{tech:this});return new xn.remoteTextEl.TrackClass(e)},i.prototype.addRemoteTextTrack=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},n=arguments[1],r=this.createRemoteTextTrack(e);return!0!==n&&!1!==n&&(y.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js'),n=!0),this.remoteTextTrackEls().addTrackElement_(r),this.remoteTextTracks().addTrack(r.track),!0!==n&&this.ready(function(){return t.autoRemoteTextTracks_.addTrack(r.track)}),r},i.prototype.removeRemoteTextTrack=function(t){var e=this.remoteTextTrackEls().getTrackElementByTrack_(t);this.remoteTextTrackEls().removeTrackElement_(e),this.remoteTextTracks().removeTrack(t),this.autoRemoteTextTracks_.removeTrack(t)},i.prototype.getVideoPlaybackQuality=function(){return{}},i.prototype.setPoster=function(){},i.prototype.playsinline=function(){},i.prototype.setPlaysinline=function(){},i.prototype.overrideNativeAudioTracks=function(){},i.prototype.overrideNativeVideoTracks=function(){},i.prototype.canPlayType=function(){return""},i.canPlayType=function(){return""},i.canPlaySource=function(t,e){return i.canPlayType(t.type)},i.isTech=function(t){return t.prototype instanceof i||t instanceof i||t===i},i.registerTech=function(t,e){if(i.techs_||(i.techs_={}),!i.isTech(e))throw new Error("Tech "+t+" must be a Tech");if(!i.canPlayType)throw new Error("Techs must have a static canPlayType method on them");if(!i.canPlaySource)throw new Error("Techs must have a static canPlaySource method on them");return t=qt(t),i.techs_[t]=e,"Tech"!==t&&i.defaultTechOrder_.push(t),e},i.getTech=function(t){if(t)return t=qt(t),i.techs_&&i.techs_[t]?i.techs_[t]:d&&d.videojs&&d.videojs[t]?(y.warn("The "+t+" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)"),d.videojs[t]):void 0},i}(Xt);jn.names.forEach(function(t){var e=jn[t];An.prototype[e.getterName]=function(){return this[e.privateName]=this[e.privateName]||new e.ListClass,this[e.privateName]}}),An.prototype.featuresVolumeControl=!0,An.prototype.featuresMuteControl=!0,An.prototype.featuresFullscreenResize=!1,An.prototype.featuresPlaybackRate=!1,An.prototype.featuresProgressEvents=!1,An.prototype.featuresSourceset=!1,An.prototype.featuresTimeupdateEvents=!1,An.prototype.featuresNativeTextTracks=!1,An.withSourceHandlers=function(i){i.registerSourceHandler=function(t,e){var n=i.sourceHandlers;n||(n=i.sourceHandlers=[]),void 0===e&&(e=n.length),n.splice(e,0,t)},i.canPlayType=function(t){for(var e=i.sourceHandlers||[],n=void 0,r=0;r<e.length;r++)if(n=e[r].canPlayType(t))return n;return""},i.selectSourceHandler=function(t,e){for(var n=i.sourceHandlers||[],r=0;r<n.length;r++)if(n[r].canHandleSource(t,e))return n[r];return null},i.canPlaySource=function(t,e){var n=i.selectSourceHandler(t,e);return n?n.canHandleSource(t,e):""};["seekable","seeking","duration"].forEach(function(t){var e=this[t];"function"==typeof e&&(this[t]=function(){return this.sourceHandler_&&this.sourceHandler_[t]?this.sourceHandler_[t].apply(this.sourceHandler_,arguments):e.apply(this,arguments)})},i.prototype),i.prototype.setSource=function(t){var e=i.selectSourceHandler(t,this.options_);e||(i.nativeSourceHandler?e=i.nativeSourceHandler:y.error("No source handler found for the current source.")),this.disposeSourceHandler(),this.off("dispose",this.disposeSourceHandler),e!==i.nativeSourceHandler&&(this.currentSource_=t),this.sourceHandler_=e.handleSource(t,this,this.options_),this.on("dispose",this.disposeSourceHandler)},i.prototype.disposeSourceHandler=function(){this.currentSource_&&(this.clearTracks(["audio","video"]),this.currentSource_=null),this.cleanupAutoTextTracks(),this.sourceHandler_&&(this.sourceHandler_.dispose&&this.sourceHandler_.dispose(),this.sourceHandler_=null)}},Xt.registerComponent("Tech",An),An.registerTech("Tech",An),An.defaultTechOrder_=[];var On={},Mn={},Nn={};function In(t,e,n){t.setTimeout(function(){return function n(){var r=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:[];var i=arguments[2];var o=arguments[3];var s=4<arguments.length&&void 0!==arguments[4]?arguments[4]:[];var a=5<arguments.length&&void 0!==arguments[5]&&arguments[5];var e=t[0],l=t.slice(1);if("string"==typeof e)n(r,On[e],i,o,s,a);else if(e){var c=function(t,e){var n=Mn[t.id()],r=null;if(null==n)return r=e(t),Mn[t.id()]=[[e,r]],r;for(var i=0;i<n.length;i++){var o=n[i],s=o[0],a=o[1];s===e&&(r=a)}null===r&&(r=e(t),n.push([e,r]));return r}(o,e);if(!c.setSource)return s.push(c),n(r,l,i,o,s,a);c.setSource(k({},r),function(t,e){if(t)return n(r,l,i,o,s,a);s.push(c),n(e,r.type===e.type?l:On[e.type],i,o,s,a)})}else l.length?n(r,l,i,o,s,a):a?i(r,s):n(r,On["*"],i,o,s,!0)}(e,On[e.type],n,t)},1)}function Dn(t,e,n){var r=3<arguments.length&&void 0!==arguments[3]?arguments[3]:null,i="call"+qt(n),o=t.reduce(Bn(i),r),s=o===Nn,a=s?null:e[n](o);return function(t,e,n,r){for(var i=t.length-1;0<=i;i--){var o=t[i];o[e]&&o[e](r,n)}}(t,n,a,s),a}var Ln={buffered:1,currentTime:1,duration:1,seekable:1,played:1,paused:1},Fn={setCurrentTime:1},Rn={play:1,pause:1};function Bn(n){return function(t,e){return t===Nn?Nn:e[n]?e[n](t):t}}var Hn={opus:"video/ogg",ogv:"video/ogg",mp4:"video/mp4",mov:"video/mp4",m4v:"video/mp4",mkv:"video/x-matroska",mp3:"audio/mpeg",aac:"audio/aac",oga:"audio/ogg",m3u8:"application/x-mpegURL"},Vn=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=tn(t);return Hn[e.toLowerCase()]||""};function zn(t){var e=Vn(t.src);return!t.type&&e&&(t.type=e),t}var Wn=function(c){function u(t,e,n){g(this,u);var r=Kt({createEl:!1},e),i=_(this,c.call(this,t,r,n));if(e.playerOptions.sources&&0!==e.playerOptions.sources.length)t.src(e.playerOptions.sources);else for(var o=0,s=e.playerOptions.techOrder;o<s.length;o++){var a=qt(s[o]),l=An.getTech(a);if(a||(l=Xt.getComponent(a)),l&&l.isSupported()){t.loadTech_(a);break}}return i}return m(u,c),u}(Xt);Xt.registerComponent("MediaLoader",Wn);var Un=function(i){function r(t,e){g(this,r);var n=_(this,i.call(this,t,e));return n.emitTapEvents(),n.enable(),n}return m(r,i),r.prototype.createEl=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"div",e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=k({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass(),tabIndex:0},e),"button"===t&&y.error("Creating a ClickableComponent with an HTML element of "+t+" is not supported; use a Button instead."),n=k({role:"button"},n),this.tabIndex_=e.tabIndex;var r=i.prototype.createEl.call(this,t,e,n);return this.createControlTextEl(r),r},r.prototype.dispose=function(){this.controlTextEl_=null,i.prototype.dispose.call(this)},r.prototype.createControlTextEl=function(t){return this.controlTextEl_=I("span",{className:"vjs-control-text"},{"aria-live":"polite"}),t&&t.appendChild(this.controlTextEl_),this.controlText(this.controlText_,t),this.controlTextEl_},r.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.el();if(void 0===t)return this.controlText_||"Need Text";var n=this.localize(t);this.controlText_=t,D(this.controlTextEl_,n),this.nonIconControl||e.setAttribute("title",n)},r.prototype.buildCSSClass=function(){return"vjs-control vjs-button "+i.prototype.buildCSSClass.call(this)},r.prototype.enable=function(){this.enabled_||(this.enabled_=!0,this.removeClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","false"),"undefined"!=typeof this.tabIndex_&&this.el_.setAttribute("tabIndex",this.tabIndex_),this.on(["tap","click"],this.handleClick),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur))},r.prototype.disable=function(){this.enabled_=!1,this.addClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","true"),"undefined"!=typeof this.tabIndex_&&this.el_.removeAttribute("tabIndex"),this.off(["tap","click"],this.handleClick),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur)},r.prototype.handleClick=function(t){},r.prototype.handleFocus=function(t){mt(f,"keydown",Pt(this,this.handleKeyPress))},r.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.trigger("click")):i.prototype.handleKeyPress&&i.prototype.handleKeyPress.call(this,t)},r.prototype.handleBlur=function(t){_t(f,"keydown",Pt(this,this.handleKeyPress))},r}(Xt);Xt.registerComponent("ClickableComponent",Un);var qn=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.update(),t.on("posterchange",Pt(n,n.update)),n}return m(i,r),i.prototype.dispose=function(){this.player().off("posterchange",this.update),r.prototype.dispose.call(this)},i.prototype.createEl=function(){return I("div",{className:"vjs-poster",tabIndex:-1})},i.prototype.update=function(t){var e=this.player().poster();this.setSrc(e),e?this.show():this.hide()},i.prototype.setSrc=function(t){var e="";t&&(e='url("'+t+'")'),this.el_.style.backgroundImage=e},i.prototype.handleClick=function(t){this.player_.controls()&&(this.player_.paused()?Me(this.player_.play()):this.player_.pause())},i}(Un);Xt.registerComponent("PosterImage",qn);var Kn="#222",Xn={monospace:"monospace",sansSerif:"sans-serif",serif:"serif",monospaceSansSerif:'"Andale Mono", "Lucida Console", monospace',monospaceSerif:'"Courier New", monospace',proportionalSansSerif:"sans-serif",proportionalSerif:"serif",casual:'"Comic Sans MS", Impact, fantasy',script:'"Monotype Corsiva", cursive',smallcaps:'"Andale Mono", "Lucida Console", monospace, sans-serif'};function $n(t,e){var n=void 0;if(4===t.length)n=t[1]+t[1]+t[2]+t[2]+t[3]+t[3];else{if(7!==t.length)throw new Error("Invalid color code provided, "+t+"; must be formatted as e.g. #f0e or #f604e2.");n=t.slice(1)}return"rgba("+parseInt(n.slice(0,2),16)+","+parseInt(n.slice(2,4),16)+","+parseInt(n.slice(4,6),16)+","+e+")"}function Gn(t,e,n){try{t.style[e]=n}catch(t){return}}var Yn=function(o){function s(n,t,e){g(this,s);var r=_(this,o.call(this,n,t,e)),i=Pt(r,r.updateDisplay);return n.on("loadstart",Pt(r,r.toggleDisplay)),n.on("texttrackchange",i),n.on("loadstart",Pt(r,r.preselectTrack)),n.ready(Pt(r,function(){if(n.tech_&&n.tech_.featuresNativeTextTracks)this.hide();else{n.on("fullscreenchange",i),n.on("playerresize",i),d.addEventListener("orientationchange",i),n.on("dispose",function(){return d.removeEventListener("orientationchange",i)});for(var t=this.options_.playerOptions.tracks||[],e=0;e<t.length;e++)this.player_.addRemoteTextTrack(t[e],!0);this.preselectTrack()}})),r}return m(s,o),s.prototype.preselectTrack=function(){for(var t={captions:1,subtitles:1},e=this.player_.textTracks(),n=this.player_.cache_.selectedLanguage,r=void 0,i=void 0,o=void 0,s=0;s<e.length;s++){var a=e[s];n&&n.enabled&&n.language===a.language?a.kind===n.kind?o=a:o||(o=a):n&&!n.enabled?i=r=o=null:a.default&&("descriptions"!==a.kind||r?a.kind in t&&!i&&(i=a):r=a)}o?o.mode="showing":i?i.mode="showing":r&&(r.mode="showing")},s.prototype.toggleDisplay=function(){this.player_.tech_&&this.player_.tech_.featuresNativeTextTracks?this.hide():this.show()},s.prototype.createEl=function(){return o.prototype.createEl.call(this,"div",{className:"vjs-text-track-display"},{"aria-live":"off","aria-atomic":"true"})},s.prototype.clearDisplay=function(){"function"==typeof d.WebVTT&&d.WebVTT.processCues(d,[],this.el_)},s.prototype.updateDisplay=function(){var t=this.player_.textTracks();this.clearDisplay();for(var e=null,n=null,r=t.length;r--;){var i=t[r];"showing"===i.mode&&("descriptions"===i.kind?e=i:n=i)}n?("off"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","off"),this.updateForTrack(n)):e&&("assertive"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","assertive"),this.updateForTrack(e))},s.prototype.updateForTrack=function(t){if("function"==typeof d.WebVTT&&t.activeCues){for(var e=[],n=0;n<t.activeCues.length;n++)e.push(t.activeCues[n]);if(d.WebVTT.processCues(d,e,this.el_),this.player_.textTrackSettings)for(var r=this.player_.textTrackSettings.getValues(),i=e.length;i--;){var o=e[i];if(o){var s=o.displayState;if(r.color&&(s.firstChild.style.color=r.color),r.textOpacity&&Gn(s.firstChild,"color",$n(r.color||"#fff",r.textOpacity)),r.backgroundColor&&(s.firstChild.style.backgroundColor=r.backgroundColor),r.backgroundOpacity&&Gn(s.firstChild,"backgroundColor",$n(r.backgroundColor||"#000",r.backgroundOpacity)),r.windowColor&&(r.windowOpacity?Gn(s,"backgroundColor",$n(r.windowColor,r.windowOpacity)):s.style.backgroundColor=r.windowColor),r.edgeStyle&&("dropshadow"===r.edgeStyle?s.firstChild.style.textShadow="2px 2px 3px #222, 2px 2px 4px #222, 2px 2px 5px "+Kn:"raised"===r.edgeStyle?s.firstChild.style.textShadow="1px 1px #222, 2px 2px #222, 3px 3px "+Kn:"depressed"===r.edgeStyle?s.firstChild.style.textShadow="1px 1px #ccc, 0 1px #ccc, -1px -1px #222, 0 -1px "+Kn:"uniform"===r.edgeStyle&&(s.firstChild.style.textShadow="0 0 4px #222, 0 0 4px #222, 0 0 4px #222, 0 0 4px "+Kn)),r.fontPercent&&1!==r.fontPercent){var a=d.parseFloat(s.style.fontSize);s.style.fontSize=a*r.fontPercent+"px",s.style.height="auto",s.style.top="auto",s.style.bottom="2px"}r.fontFamily&&"default"!==r.fontFamily&&("small-caps"===r.fontFamily?s.firstChild.style.fontVariant="small-caps":s.firstChild.style.fontFamily=Xn[r.fontFamily])}}}},s}(Xt);Xt.registerComponent("TextTrackDisplay",Yn);var Jn=function(i){function t(){return g(this,t),_(this,i.apply(this,arguments))}return m(t,i),t.prototype.createEl=function(){var t=this.player_.isAudio(),e=this.localize(t?"Audio Player":"Video Player"),n=I("span",{className:"vjs-control-text",innerHTML:this.localize("{1} is loading.",[e])}),r=i.prototype.createEl.call(this,"div",{className:"vjs-loading-spinner",dir:"ltr"});return r.appendChild(n),r},t}(Xt);Xt.registerComponent("LoadingSpinner",Jn);var Qn=function(e){function t(){return g(this,t),_(this,e.apply(this,arguments))}return m(t,e),t.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=k({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass()},e),n=k({type:"button"},n);var r=Xt.prototype.createEl.call(this,"button",e,n);return this.createControlTextEl(r),r},t.prototype.addChild=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=this.constructor.name;return y.warn("Adding an actionable (user controllable) child to a Button ("+n+") is not supported; use a ClickableComponent instead."),Xt.prototype.addChild.call(this,t,e)},t.prototype.enable=function(){e.prototype.enable.call(this),this.el_.removeAttribute("disabled")},t.prototype.disable=function(){e.prototype.disable.call(this),this.el_.setAttribute("disabled","disabled")},t.prototype.handleKeyPress=function(t){32!==t.which&&13!==t.which&&e.prototype.handleKeyPress.call(this,t)},t}(Un);Xt.registerComponent("Button",Qn);var Zn=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.mouseused_=!1,n.on("mousedown",n.handleMouseDown),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-big-play-button"},i.prototype.handleClick=function(t){var e=this.player_.play();if(this.mouseused_&&t.clientX&&t.clientY)Me(e);else{var n=this.player_.getChild("controlBar"),r=n&&n.getChild("playToggle");if(r){var i=function(){return r.focus()};Oe(e)?e.then(i,function(){}):this.setTimeout(i,1)}else this.player_.focus()}},i.prototype.handleKeyPress=function(t){this.mouseused_=!1,r.prototype.handleKeyPress.call(this,t)},i.prototype.handleMouseDown=function(t){this.mouseused_=!0},i}(Qn);Zn.prototype.controlText_="Play Video",Xt.registerComponent("BigPlayButton",Zn);var tr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.controlText(e&&e.controlText||n.localize("Close")),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-close-button "+r.prototype.buildCSSClass.call(this)},i.prototype.handleClick=function(t){this.trigger({type:"close",bubbles:!1})},i}(Qn);Xt.registerComponent("CloseButton",tr);var er=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"play",n.handlePlay),n.on(t,"pause",n.handlePause),n.on(t,"ended",n.handleEnded),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-play-control "+r.prototype.buildCSSClass.call(this)},i.prototype.handleClick=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},i.prototype.handleSeeked=function(t){this.removeClass("vjs-ended"),this.player_.paused()?this.handlePause(t):this.handlePlay(t)},i.prototype.handlePlay=function(t){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.controlText("Pause")},i.prototype.handlePause=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.controlText("Play")},i.prototype.handleEnded=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-ended"),this.controlText("Replay"),this.one(this.player_,"seeked",this.handleSeeked)},i}(Qn);er.prototype.controlText_="Play",Xt.registerComponent("PlayToggle",er);var nr=function(t,e){t=t<0?0:t;var n=Math.floor(t%60),r=Math.floor(t/60%60),i=Math.floor(t/3600),o=Math.floor(e/60%60),s=Math.floor(e/3600);return(isNaN(t)||t===1/0)&&(i=r=n="-"),(i=0<i||0<s?i+":":"")+(r=((i||10<=o)&&r<10?"0"+r:r)+":")+(n=n<10?"0"+n:n)},rr=nr;function ir(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t;return rr(t,e)}var or=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.throttledUpdateContent=At(Pt(n,n.updateContent),25),n.on(t,"timeupdate",n.throttledUpdateContent),n}return m(i,r),i.prototype.createEl=function(t){var e=this.buildCSSClass(),n=r.prototype.createEl.call(this,"div",{className:e+" vjs-time-control vjs-control",innerHTML:'<span class="vjs-control-text">'+this.localize(this.labelText_)+" </span>"});return this.contentEl_=I("span",{className:e+"-display"},{"aria-live":"off"}),this.updateTextNode_(),n.appendChild(this.contentEl_),n},i.prototype.dispose=function(){this.contentEl_=null,this.textNode_=null,r.prototype.dispose.call(this)},i.prototype.updateTextNode_=function(){if(this.contentEl_){for(;this.contentEl_.firstChild;)this.contentEl_.removeChild(this.contentEl_.firstChild);this.textNode_=f.createTextNode(this.formattedTime_||this.formatTime_(0)),this.contentEl_.appendChild(this.textNode_)}},i.prototype.formatTime_=function(t){return ir(t)},i.prototype.updateFormattedTime_=function(t){var e=this.formatTime_(t);e!==this.formattedTime_&&(this.formattedTime_=e,this.requestAnimationFrame(this.updateTextNode_))},i.prototype.updateContent=function(t){},i}(Xt);or.prototype.labelText_="Time",or.prototype.controlText_="Time",Xt.registerComponent("TimeDisplay",or);var sr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"ended",n.handleEnded),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-current-time"},i.prototype.updateContent=function(t){var e=this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime();this.updateFormattedTime_(e)},i.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(this.player_.duration())},i}(or);sr.prototype.labelText_="Current Time",sr.prototype.controlText_="Current Time",Xt.registerComponent("CurrentTimeDisplay",sr);var ar=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"durationchange",n.updateContent),n.on(t,"loadedmetadata",n.throttledUpdateContent),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-duration"},i.prototype.updateContent=function(t){var e=this.player_.duration();e&&this.duration_!==e&&(this.duration_=e,this.updateFormattedTime_(e))},i}(or);ar.prototype.labelText_="Duration",ar.prototype.controlText_="Duration",Xt.registerComponent("DurationDisplay",ar);var lr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-control vjs-time-divider",innerHTML:"<div><span>/</span></div>"})},e}(Xt);Xt.registerComponent("TimeDivider",lr);var cr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"durationchange",n.throttledUpdateContent),n.on(t,"ended",n.handleEnded),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-remaining-time"},i.prototype.formatTime_=function(t){return"-"+r.prototype.formatTime_.call(this,t)},i.prototype.updateContent=function(t){this.player_.duration()&&(this.player_.remainingTimeDisplay?this.updateFormattedTime_(this.player_.remainingTimeDisplay()):this.updateFormattedTime_(this.player_.remainingTime()))},i.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(0)},i}(or);cr.prototype.labelText_="Remaining Time",cr.prototype.controlText_="Remaining Time",Xt.registerComponent("RemainingTimeDisplay",cr);var ur=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.updateShowing(),n.on(n.player(),"durationchange",n.updateShowing),n}return m(i,r),i.prototype.createEl=function(){var t=r.prototype.createEl.call(this,"div",{className:"vjs-live-control vjs-control"});return this.contentEl_=I("div",{className:"vjs-live-display",innerHTML:'<span class="vjs-control-text">'+this.localize("Stream Type")+" </span>"+this.localize("LIVE")},{"aria-live":"off"}),t.appendChild(this.contentEl_),t},i.prototype.dispose=function(){this.contentEl_=null,r.prototype.dispose.call(this)},i.prototype.updateShowing=function(t){this.player().duration()===1/0?this.show():this.hide()},i}(Xt);Xt.registerComponent("LiveDisplay",ur);var hr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.bar=n.getChild(n.options_.barName),n.vertical(!!n.options_.vertical),n.enable(),n}return m(i,r),i.prototype.enabled=function(){return this.enabled_},i.prototype.enable=function(){this.enabled()||(this.on("mousedown",this.handleMouseDown),this.on("touchstart",this.handleMouseDown),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur),this.on("click",this.handleClick),this.on(this.player_,"controlsvisible",this.update),this.playerEvent&&this.on(this.player_,this.playerEvent,this.update),this.removeClass("disabled"),this.setAttribute("tabindex",0),this.enabled_=!0)},i.prototype.disable=function(){if(this.enabled()){var t=this.bar.el_.ownerDocument;this.off("mousedown",this.handleMouseDown),this.off("touchstart",this.handleMouseDown),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur),this.off("click",this.handleClick),this.off(this.player_,"controlsvisible",this.update),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.removeAttribute("tabindex"),this.addClass("disabled"),this.playerEvent&&this.off(this.player_,this.playerEvent,this.update),this.enabled_=!1}},i.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};return e.className=e.className+" vjs-slider",e=k({tabIndex:0},e),n=k({role:"slider","aria-valuenow":0,"aria-valuemin":0,"aria-valuemax":100,tabIndex:0},n),r.prototype.createEl.call(this,t,e,n)},i.prototype.handleMouseDown=function(t){var e=this.bar.el_.ownerDocument;"mousedown"===t.type&&t.preventDefault(),"touchstart"!==t.type||he||t.preventDefault(),K(),this.addClass("vjs-sliding"),this.trigger("slideractive"),this.on(e,"mousemove",this.handleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchmove",this.handleMouseMove),this.on(e,"touchend",this.handleMouseUp),this.handleMouseMove(t)},i.prototype.handleMouseMove=function(t){},i.prototype.handleMouseUp=function(){var t=this.bar.el_.ownerDocument;X(),this.removeClass("vjs-sliding"),this.trigger("sliderinactive"),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.update()},i.prototype.update=function(){if(this.el_){var t=this.getPercent(),e=this.bar;if(e){("number"!=typeof t||t!=t||t<0||t===1/0)&&(t=0);var n=(100*t).toFixed(2)+"%",r=e.el().style;return this.vertical()?r.height=n:r.width=n,t}}},i.prototype.calculateDistance=function(t){var e=Y(this.el_,t);return this.vertical()?e.y:e.x},i.prototype.handleFocus=function(){this.on(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},i.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepBack()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepForward())},i.prototype.handleBlur=function(){this.off(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},i.prototype.handleClick=function(t){t.stopImmediatePropagation(),t.preventDefault()},i.prototype.vertical=function(t){if(void 0===t)return this.vertical_||!1;this.vertical_=!!t,this.vertical_?this.addClass("vjs-slider-vertical"):this.addClass("vjs-slider-horizontal")},i}(Xt);Xt.registerComponent("Slider",hr);var pr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.partEls_=[],n.on(t,"progress",n.update),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-load-progress",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Loaded")+"</span>: 0%</span>"})},i.prototype.dispose=function(){this.partEls_=null,r.prototype.dispose.call(this)},i.prototype.update=function(t){var e=this.player_.buffered(),n=this.player_.duration(),r=this.player_.bufferedEnd(),i=this.partEls_,o=function(t,e){var n=t/e||0;return 100*(1<=n?1:n)+"%"};this.el_.style.width=o(r,n);for(var s=0;s<e.length;s++){var a=e.start(s),l=e.end(s),c=i[s];c||(c=this.el_.appendChild(I()),i[s]=c),c.style.left=o(a,r),c.style.width=o(l-a,r)}for(var u=i.length;u>e.length;u--)this.el_.removeChild(i[u-1]);i.length=e.length},i}(Xt);Xt.registerComponent("LoadProgressBar",pr);var dr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-tooltip"})},e.prototype.update=function(t,e,n){var r=$(this.el_),i=$(this.player_.el()),o=t.width*e;if(i&&r){var s=t.left-i.left+o,a=t.width-o+(i.right-t.right),l=r.width/2;s<l?l+=l-s:a<l&&(l=a),l<0?l=0:l>r.width&&(l=r.width),this.el_.style.right="-"+l+"px",D(this.el_,n)}},e}(Xt);Xt.registerComponent("TimeTooltip",dr);var fr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-play-progress vjs-slider-bar",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Progress")+"</span>: 0%</span>"})},e.prototype.update=function(n,r){var i=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=ir(i.player_.scrubbing()?i.player_.getCache().currentTime:i.player_.currentTime(),i.player_.duration()),e=i.getChild("timeTooltip");e&&e.update(n,r,t)})},e}(Xt);fr.prototype.options_={children:[]},ie||se||fr.prototype.options_.children.push("timeTooltip"),Xt.registerComponent("PlayProgressBar",fr);var yr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.update=At(Pt(n,n.update),25),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-mouse-display"})},i.prototype.update=function(n,r){var i=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=i.player_.duration(),e=ir(r*t,t);i.el_.style.left=n.width*r+"px",i.getChild("timeTooltip").update(n,r,e)})},i}(Xt);yr.prototype.options_={children:["timeTooltip"]},Xt.registerComponent("MouseTimeDisplay",yr);var vr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.setEventHandlers_(),n}return m(i,r),i.prototype.setEventHandlers_=function(){var t=this;this.update=At(Pt(this,this.update),30),this.on(this.player_,"timeupdate",this.update),this.on(this.player_,"ended",this.handleEnded),this.updateInterval=null,this.on(this.player_,["playing"],function(){t.clearInterval(t.updateInterval),t.updateInterval=t.setInterval(function(){t.requestAnimationFrame(function(){t.update()})},30)}),this.on(this.player_,["ended","pause","waiting"],function(){t.clearInterval(t.updateInterval)}),this.on(this.player_,["timeupdate","ended"],this.update)},i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-progress-holder"},{"aria-label":this.localize("Progress Bar")})},i.prototype.update_=function(t,e){var n=this.player_.duration();this.el_.setAttribute("aria-valuenow",(100*e).toFixed(2)),this.el_.setAttribute("aria-valuetext",this.localize("progress bar timing: currentTime={1} duration={2}",[ir(t,n),ir(n,n)],"{1} of {2}")),this.bar.update($(this.el_),e)},i.prototype.update=function(t){var e=r.prototype.update.call(this);return this.update_(this.getCurrentTime_(),e),e},i.prototype.getCurrentTime_=function(){return this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime()},i.prototype.handleEnded=function(t){this.update_(this.player_.duration(),1)},i.prototype.getPercent=function(){var t=this.getCurrentTime_()/this.player_.duration();return 1<=t?1:t||0},i.prototype.handleMouseDown=function(t){nt(t)&&(t.stopPropagation(),this.player_.scrubbing(!0),this.videoWasPlaying=!this.player_.paused(),this.player_.pause(),r.prototype.handleMouseDown.call(this,t))},i.prototype.handleMouseMove=function(t){if(nt(t)){var e=this.calculateDistance(t)*this.player_.duration();e===this.player_.duration()&&(e-=.1),this.player_.currentTime(e)}},i.prototype.enable=function(){r.prototype.enable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.show()},i.prototype.disable=function(){r.prototype.disable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.hide()},i.prototype.handleMouseUp=function(t){r.prototype.handleMouseUp.call(this,t),t&&t.stopPropagation(),this.player_.scrubbing(!1),this.player_.trigger({type:"timeupdate",target:this,manuallyTriggered:!0}),this.videoWasPlaying&&Me(this.player_.play())},i.prototype.stepForward=function(){this.player_.currentTime(this.player_.currentTime()+5)},i.prototype.stepBack=function(){this.player_.currentTime(this.player_.currentTime()-5)},i.prototype.handleAction=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},i.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.handleAction(t)):r.prototype.handleKeyPress&&r.prototype.handleKeyPress.call(this,t)},i}(hr);vr.prototype.options_={children:["loadProgressBar","playProgressBar"],barName:"playProgressBar"},ie||se||vr.prototype.options_.children.splice(1,0,"mouseTimeDisplay"),vr.prototype.playerEvent="timeupdate",Xt.registerComponent("SeekBar",vr);var gr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.handleMouseMove=At(Pt(n,n.handleMouseMove),25),n.throttledHandleMouseSeek=At(Pt(n,n.handleMouseSeek),25),n.enable(),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-progress-control vjs-control"})},i.prototype.handleMouseMove=function(t){var e=this.getChild("seekBar");if(e){var n=e.getChild("mouseTimeDisplay"),r=e.el(),i=$(r),o=Y(r,t).x;1<o?o=1:o<0&&(o=0),n&&n.update(i,o)}},i.prototype.handleMouseSeek=function(t){var e=this.getChild("seekBar");e&&e.handleMouseMove(t)},i.prototype.enabled=function(){return this.enabled_},i.prototype.disable=function(){this.children().forEach(function(t){return t.disable&&t.disable()}),this.enabled()&&(this.off(["mousedown","touchstart"],this.handleMouseDown),this.off(this.el_,"mousemove",this.handleMouseMove),this.handleMouseUp(),this.addClass("disabled"),this.enabled_=!1)},i.prototype.enable=function(){this.children().forEach(function(t){return t.enable&&t.enable()}),this.enabled()||(this.on(["mousedown","touchstart"],this.handleMouseDown),this.on(this.el_,"mousemove",this.handleMouseMove),this.removeClass("disabled"),this.enabled_=!0)},i.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument,n=this.getChild("seekBar");n&&n.handleMouseDown(t),this.on(e,"mousemove",this.throttledHandleMouseSeek),this.on(e,"touchmove",this.throttledHandleMouseSeek),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},i.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument,n=this.getChild("seekBar");n&&n.handleMouseUp(t),this.off(e,"mousemove",this.throttledHandleMouseSeek),this.off(e,"touchmove",this.throttledHandleMouseSeek),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},i}(Xt);gr.prototype.options_={children:["seekBar"]},Xt.registerComponent("ProgressControl",gr);var mr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"fullscreenchange",n.handleFullscreenChange),!1===f[Ce.fullscreenEnabled]&&n.disable(),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-fullscreen-control "+r.prototype.buildCSSClass.call(this)},i.prototype.handleFullscreenChange=function(t){this.player_.isFullscreen()?this.controlText("Non-Fullscreen"):this.controlText("Fullscreen")},i.prototype.handleClick=function(t){this.player_.isFullscreen()?this.player_.exitFullscreen():this.player_.requestFullscreen()},i}(Qn);mr.prototype.controlText_="Fullscreen",Xt.registerComponent("FullscreenToggle",mr);var _r=function(t,e){e.tech_&&!e.tech_.featuresVolumeControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresVolumeControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},br=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-volume-level",innerHTML:'<span class="vjs-control-text"></span>'})},e}(Xt);Xt.registerComponent("VolumeLevel",br);var Tr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on("slideractive",n.updateLastVolume_),n.on(t,"volumechange",n.updateARIAAttributes),t.ready(function(){return n.updateARIAAttributes()}),n}return m(i,r),i.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:"vjs-volume-bar vjs-slider-bar"},{"aria-label":this.localize("Volume Level"),"aria-live":"polite"})},i.prototype.handleMouseDown=function(t){nt(t)&&r.prototype.handleMouseDown.call(this,t)},i.prototype.handleMouseMove=function(t){nt(t)&&(this.checkMuted(),this.player_.volume(this.calculateDistance(t)))},i.prototype.checkMuted=function(){this.player_.muted()&&this.player_.muted(!1)},i.prototype.getPercent=function(){return this.player_.muted()?0:this.player_.volume()},i.prototype.stepForward=function(){this.checkMuted(),this.player_.volume(this.player_.volume()+.1)},i.prototype.stepBack=function(){this.checkMuted(),this.player_.volume(this.player_.volume()-.1)},i.prototype.updateARIAAttributes=function(t){var e=this.player_.muted()?0:this.volumeAsPercentage_();this.el_.setAttribute("aria-valuenow",e),this.el_.setAttribute("aria-valuetext",e+"%")},i.prototype.volumeAsPercentage_=function(){return Math.round(100*this.player_.volume())},i.prototype.updateLastVolume_=function(){var t=this,e=this.player_.volume();this.one("sliderinactive",function(){0===t.player_.volume()&&t.player_.lastVolume_(e)})},i}(hr);Tr.prototype.options_={children:["volumeLevel"],barName:"volumeLevel"},Tr.prototype.playerEvent="volumechange",Xt.registerComponent("VolumeBar",Tr);var Cr=function(r){function i(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,i),e.vertical=e.vertical||!1,("undefined"==typeof e.volumeBar||S(e.volumeBar))&&(e.volumeBar=e.volumeBar||{},e.volumeBar.vertical=e.vertical);var n=_(this,r.call(this,t,e));return _r(n,t),n.throttledHandleMouseMove=At(Pt(n,n.handleMouseMove),25),n.on("mousedown",n.handleMouseDown),n.on("touchstart",n.handleMouseDown),n.on(n.volumeBar,["focus","slideractive"],function(){n.volumeBar.addClass("vjs-slider-active"),n.addClass("vjs-slider-active"),n.trigger("slideractive")}),n.on(n.volumeBar,["blur","sliderinactive"],function(){n.volumeBar.removeClass("vjs-slider-active"),n.removeClass("vjs-slider-active"),n.trigger("sliderinactive")}),n}return m(i,r),i.prototype.createEl=function(){var t="vjs-volume-horizontal";return this.options_.vertical&&(t="vjs-volume-vertical"),r.prototype.createEl.call(this,"div",{className:"vjs-volume-control vjs-control "+t})},i.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument;this.on(e,"mousemove",this.throttledHandleMouseMove),this.on(e,"touchmove",this.throttledHandleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},i.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument;this.off(e,"mousemove",this.throttledHandleMouseMove),this.off(e,"touchmove",this.throttledHandleMouseMove),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},i.prototype.handleMouseMove=function(t){this.volumeBar.handleMouseMove(t)},i}(Xt);Cr.prototype.options_={children:["volumeBar"]},Xt.registerComponent("VolumeControl",Cr);var kr=function(t,e){e.tech_&&!e.tech_.featuresMuteControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresMuteControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},Er=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return kr(n,t),n.on(t,["loadstart","volumechange"],n.update),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-mute-control "+r.prototype.buildCSSClass.call(this)},i.prototype.handleClick=function(t){var e=this.player_.volume(),n=this.player_.lastVolume_();if(0===e){var r=n<.1?.1:n;this.player_.volume(r),this.player_.muted(!1)}else this.player_.muted(!this.player_.muted())},i.prototype.update=function(t){this.updateIcon_(),this.updateControlText_()},i.prototype.updateIcon_=function(){var t=this.player_.volume(),e=3;ie&&this.player_.muted(this.player_.tech_.el_.muted),0===t||this.player_.muted()?e=0:t<.33?e=1:t<.67&&(e=2);for(var n=0;n<4;n++)B(this.el_,"vjs-vol-"+n);R(this.el_,"vjs-vol-"+e)},i.prototype.updateControlText_=function(){var t=this.player_.muted()||0===this.player_.volume()?"Unmute":"Mute";this.controlText()!==t&&this.controlText(t)},i}(Qn);Er.prototype.controlText_="Mute",Xt.registerComponent("MuteToggle",Er);var Sr=function(r){function i(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,i),"undefined"!=typeof e.inline?e.inline=e.inline:e.inline=!0,("undefined"==typeof e.volumeControl||S(e.volumeControl))&&(e.volumeControl=e.volumeControl||{},e.volumeControl.vertical=!e.inline);var n=_(this,r.call(this,t,e));return n.on(t,["loadstart"],n.volumePanelState_),n.on(n.volumeControl,["slideractive"],n.sliderActive_),n.on(n.volumeControl,["sliderinactive"],n.sliderInactive_),n}return m(i,r),i.prototype.sliderActive_=function(){this.addClass("vjs-slider-active")},i.prototype.sliderInactive_=function(){this.removeClass("vjs-slider-active")},i.prototype.volumePanelState_=function(){this.volumeControl.hasClass("vjs-hidden")&&this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-hidden"),this.volumeControl.hasClass("vjs-hidden")&&!this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-mute-toggle-only")},i.prototype.createEl=function(){var t="vjs-volume-panel-horizontal";return this.options_.inline||(t="vjs-volume-panel-vertical"),r.prototype.createEl.call(this,"div",{className:"vjs-volume-panel vjs-control "+t})},i}(Xt);Sr.prototype.options_={children:["muteToggle","volumeControl"]},Xt.registerComponent("VolumePanel",Sr);var wr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return e&&(n.menuButton_=e.menuButton),n.focusedChild_=-1,n.on("keydown",n.handleKeyPress),n}return m(i,r),i.prototype.addItem=function(e){this.addChild(e),e.on("click",Pt(this,function(t){this.menuButton_&&(this.menuButton_.unpressButton(),"CaptionSettingsMenuItem"!==e.name()&&this.menuButton_.focus())}))},i.prototype.createEl=function(){var t=this.options_.contentElType||"ul";this.contentEl_=I(t,{className:"vjs-menu-content"}),this.contentEl_.setAttribute("role","menu");var e=r.prototype.createEl.call(this,"div",{append:this.contentEl_,className:"vjs-menu"});return e.appendChild(this.contentEl_),mt(e,"click",function(t){t.preventDefault(),t.stopImmediatePropagation()}),e},i.prototype.dispose=function(){this.contentEl_=null,r.prototype.dispose.call(this)},i.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepForward()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepBack())},i.prototype.stepForward=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_+1),this.focus(t)},i.prototype.stepBack=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_-1),this.focus(t)},i.prototype.focus=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,e=this.children().slice();e.length&&e[0].className&&/vjs-menu-title/.test(e[0].className)&&e.shift(),0<e.length&&(t<0?t=0:t>=e.length&&(t=e.length-1),e[this.focusedChild_=t].el_.focus())},i}(Xt);Xt.registerComponent("Menu",wr);var xr=function(i){function o(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,o);var n=_(this,i.call(this,t,e));n.menuButton_=new Qn(t,e),n.menuButton_.controlText(n.controlText_),n.menuButton_.el_.setAttribute("aria-haspopup","true");var r=Qn.prototype.buildCSSClass();return n.menuButton_.el_.className=n.buildCSSClass()+" "+r,n.menuButton_.removeClass("vjs-control"),n.addChild(n.menuButton_),n.update(),n.enabled_=!0,n.on(n.menuButton_,"tap",n.handleClick),n.on(n.menuButton_,"click",n.handleClick),n.on(n.menuButton_,"focus",n.handleFocus),n.on(n.menuButton_,"blur",n.handleBlur),n.on("keydown",n.handleSubmenuKeyPress),n}return m(o,i),o.prototype.update=function(){var t=this.createMenu();this.menu&&(this.menu.dispose(),this.removeChild(this.menu)),this.menu=t,this.addChild(t),this.buttonPressed_=!1,this.menuButton_.el_.setAttribute("aria-expanded","false"),this.items&&this.items.length<=this.hideThreshold_?this.hide():this.show()},o.prototype.createMenu=function(){var t=new wr(this.player_,{menuButton:this});if(this.hideThreshold_=0,this.options_.title){var e=I("li",{className:"vjs-menu-title",innerHTML:qt(this.options_.title),tabIndex:-1});this.hideThreshold_+=1,t.children_.unshift(e),L(e,t.contentEl())}if(this.items=this.createItems(),this.items)for(var n=0;n<this.items.length;n++)t.addItem(this.items[n]);return t},o.prototype.createItems=function(){},o.prototype.createEl=function(){return i.prototype.createEl.call(this,"div",{className:this.buildWrapperCSSClass()},{})},o.prototype.buildWrapperCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+Qn.prototype.buildCSSClass()+" "+i.prototype.buildCSSClass.call(this)},o.prototype.buildCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+i.prototype.buildCSSClass.call(this)},o.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.menuButton_.el();return this.menuButton_.controlText(t,e)},o.prototype.handleClick=function(t){this.one(this.menu.contentEl(),"mouseleave",Pt(this,function(t){this.unpressButton(),this.el_.blur()})),this.buttonPressed_?this.unpressButton():this.pressButton()},o.prototype.focus=function(){this.menuButton_.focus()},o.prototype.blur=function(){this.menuButton_.blur()},o.prototype.handleFocus=function(){mt(f,"keydown",Pt(this,this.handleKeyPress))},o.prototype.handleBlur=function(){_t(f,"keydown",Pt(this,this.handleKeyPress))},o.prototype.handleKeyPress=function(t){27===t.which||9===t.which?(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus())):38!==t.which&&40!==t.which||this.buttonPressed_||(this.pressButton(),t.preventDefault())},o.prototype.handleSubmenuKeyPress=function(t){27!==t.which&&9!==t.which||(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus()))},o.prototype.pressButton=function(){if(this.enabled_){if(this.buttonPressed_=!0,this.menu.lockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","true"),ie&&M())return;this.menu.focus()}},o.prototype.unpressButton=function(){this.enabled_&&(this.buttonPressed_=!1,this.menu.unlockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","false"))},o.prototype.disable=function(){this.unpressButton(),this.enabled_=!1,this.addClass("vjs-disabled"),this.menuButton_.disable()},o.prototype.enable=function(){this.enabled_=!0,this.removeClass("vjs-disabled"),this.menuButton_.enable()},o}(Xt);Xt.registerComponent("MenuButton",xr);var jr=function(o){function s(t,e){g(this,s);var n=e.tracks,r=_(this,o.call(this,t,e));if(r.items.length<=1&&r.hide(),!n)return _(r);var i=Pt(r,r.update);return n.addEventListener("removetrack",i),n.addEventListener("addtrack",i),r.player_.on("ready",i),r.player_.on("dispose",function(){n.removeEventListener("removetrack",i),n.removeEventListener("addtrack",i)}),r}return m(s,o),s}(xr);Xt.registerComponent("TrackButton",jr);var Pr=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.selectable=e.selectable,n.isSelected_=e.selected||!1,n.multiSelectable=e.multiSelectable,n.selected(n.isSelected_),n.selectable?n.multiSelectable?n.el_.setAttribute("role","menuitemcheckbox"):n.el_.setAttribute("role","menuitemradio"):n.el_.setAttribute("role","menuitem"),n}return m(i,r),i.prototype.createEl=function(t,e,n){return this.nonIconControl=!0,r.prototype.createEl.call(this,"li",k({className:"vjs-menu-item",innerHTML:'<span class="vjs-menu-item-text">'+this.localize(this.options_.label)+"</span>",tabIndex:-1},e),n)},i.prototype.handleClick=function(t){this.selected(!0)},i.prototype.selected=function(t){this.selectable&&(t?(this.addClass("vjs-selected"),this.el_.setAttribute("aria-checked","true"),this.controlText(", selected"),this.isSelected_=!0):(this.removeClass("vjs-selected"),this.el_.setAttribute("aria-checked","false"),this.controlText(""),this.isSelected_=!1))},i}(Un);Xt.registerComponent("MenuItem",Pr);var Ar=function(l){function c(t,e){g(this,c);var n=e.track,r=t.textTracks();e.label=n.label||n.language||"Unknown",e.selected="showing"===n.mode;var i=_(this,l.call(this,t,e));i.track=n;var o=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];i.handleTracksChange.apply(i,e)},s=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];i.handleSelectedLanguageChange.apply(i,e)};if(t.on(["loadstart","texttrackchange"],o),r.addEventListener("change",o),r.addEventListener("selectedlanguagechange",s),i.on("dispose",function(){t.off(["loadstart","texttrackchange"],o),r.removeEventListener("change",o),r.removeEventListener("selectedlanguagechange",s)}),void 0===r.onchange){var a=void 0;i.on(["tap","click"],function(){if("object"!==u(d.Event))try{a=new d.Event("change")}catch(t){}a||(a=f.createEvent("Event")).initEvent("change",!0,!0),r.dispatchEvent(a)})}return i.handleTracksChange(),i}return m(c,l),c.prototype.handleClick=function(t){var e=this.track.kind,n=this.track.kinds,r=this.player_.textTracks();if(n||(n=[e]),l.prototype.handleClick.call(this,t),r)for(var i=0;i<r.length;i++){var o=r[i];o===this.track&&-1<n.indexOf(o.kind)?"showing"!==o.mode&&(o.mode="showing"):"disabled"!==o.mode&&(o.mode="disabled")}},c.prototype.handleTracksChange=function(t){var e="showing"===this.track.mode;e!==this.isSelected_&&this.selected(e)},c.prototype.handleSelectedLanguageChange=function(t){if("showing"===this.track.mode){var e=this.player_.cache_.selectedLanguage;if(e&&e.enabled&&e.language===this.track.language&&e.kind!==this.track.kind)return;this.player_.cache_.selectedLanguage={enabled:!0,language:this.track.language,kind:this.track.kind}}},c.prototype.dispose=function(){this.track=null,l.prototype.dispose.call(this)},c}(Pr);Xt.registerComponent("TextTrackMenuItem",Ar);var Or=function(n){function r(t,e){return g(this,r),e.track={player:t,kind:e.kind,kinds:e.kinds,default:!1,mode:"disabled"},e.kinds||(e.kinds=[e.kind]),e.label?e.track.label=e.label:e.track.label=e.kinds.join(" and ")+" off",e.selectable=!0,e.multiSelectable=!1,_(this,n.call(this,t,e))}return m(r,n),r.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),n=!0,r=0,i=e.length;r<i;r++){var o=e[r];if(-1<this.options_.kinds.indexOf(o.kind)&&"showing"===o.mode){n=!1;break}}n!==this.isSelected_&&this.selected(n)},r.prototype.handleSelectedLanguageChange=function(t){for(var e=this.player().textTracks(),n=!0,r=0,i=e.length;r<i;r++){var o=e[r];if(-1<["captions","descriptions","subtitles"].indexOf(o.kind)&&"showing"===o.mode){n=!1;break}}n&&(this.player_.cache_.selectedLanguage={enabled:!1})},r}(Ar);Xt.registerComponent("OffTextTrackMenuItem",Or);var Mr=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return g(this,r),e.tracks=t.textTracks(),_(this,n.call(this,t,e))}return m(r,n),r.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[],e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:Ar,n=void 0;this.label_&&(n=this.label_+" off"),t.push(new Or(this.player_,{kinds:this.kinds_,kind:this.kind_,label:n})),this.hideThreshold_+=1;var r=this.player_.textTracks();Array.isArray(this.kinds_)||(this.kinds_=[this.kind_]);for(var i=0;i<r.length;i++){var o=r[i];if(-1<this.kinds_.indexOf(o.kind)){var s=new e(this.player_,{track:o,selectable:!0,multiSelectable:!1});s.addClass("vjs-"+o.kind+"-menu-item"),t.push(s)}}return t},r}(jr);Xt.registerComponent("TextTrackButton",Mr);var Nr=function(s){function a(t,e){g(this,a);var n=e.track,r=e.cue,i=t.currentTime();e.selectable=!0,e.multiSelectable=!1,e.label=r.text,e.selected=r.startTime<=i&&i<r.endTime;var o=_(this,s.call(this,t,e));return o.track=n,o.cue=r,n.addEventListener("cuechange",Pt(o,o.update)),o}return m(a,s),a.prototype.handleClick=function(t){s.prototype.handleClick.call(this),this.player_.currentTime(this.cue.startTime),this.update(this.cue.startTime)},a.prototype.update=function(t){var e=this.cue,n=this.player_.currentTime();this.selected(e.startTime<=n&&n<e.endTime)},a}(Pr);Xt.registerComponent("ChaptersTrackMenuItem",Nr);var Ir=function(r){function i(t,e,n){return g(this,i),_(this,r.call(this,t,e,n))}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-chapters-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-chapters-button "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.update=function(t){this.track_&&(!t||"addtrack"!==t.type&&"removetrack"!==t.type)||this.setTrack(this.findChaptersTrack()),r.prototype.update.call(this)},i.prototype.setTrack=function(t){if(this.track_!==t){if(this.updateHandler_||(this.updateHandler_=this.update.bind(this)),this.track_){var e=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);e&&e.removeEventListener("load",this.updateHandler_),this.track_=null}if(this.track_=t,this.track_){this.track_.mode="hidden";var n=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);n&&n.addEventListener("load",this.updateHandler_)}}},i.prototype.findChaptersTrack=function(){for(var t=this.player_.textTracks()||[],e=t.length-1;0<=e;e--){var n=t[e];if(n.kind===this.kind_)return n}},i.prototype.getMenuCaption=function(){return this.track_&&this.track_.label?this.track_.label:this.localize(qt(this.kind_))},i.prototype.createMenu=function(){return this.options_.title=this.getMenuCaption(),r.prototype.createMenu.call(this)},i.prototype.createItems=function(){var t=[];if(!this.track_)return t;var e=this.track_.cues;if(!e)return t;for(var n=0,r=e.length;n<r;n++){var i=e[n],o=new Nr(this.player_,{track:this.track_,cue:i});t.push(o)}return t},i}(Mr);Ir.prototype.kind_="chapters",Ir.prototype.controlText_="Chapters",Xt.registerComponent("ChaptersButton",Ir);var Dr=function(s){function a(t,e,n){g(this,a);var r=_(this,s.call(this,t,e,n)),i=t.textTracks(),o=Pt(r,r.handleTracksChange);return i.addEventListener("change",o),r.on("dispose",function(){i.removeEventListener("change",o)}),r}return m(a,s),a.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),n=!1,r=0,i=e.length;r<i;r++){var o=e[r];if(o.kind!==this.kind_&&"showing"===o.mode){n=!0;break}}n?this.disable():this.enable()},a.prototype.buildCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildCSSClass.call(this)},a.prototype.buildWrapperCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildWrapperCSSClass.call(this)},a}(Mr);Dr.prototype.kind_="descriptions",Dr.prototype.controlText_="Descriptions",Xt.registerComponent("DescriptionsButton",Dr);var Lr=function(r){function i(t,e,n){return g(this,i),_(this,r.call(this,t,e,n))}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-subtitles-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-subtitles-button "+r.prototype.buildWrapperCSSClass.call(this)},i}(Mr);Lr.prototype.kind_="subtitles",Lr.prototype.controlText_="Subtitles",Xt.registerComponent("SubtitlesButton",Lr);var Fr=function(r){function i(t,e){g(this,i),e.track={player:t,kind:e.kind,label:e.kind+" settings",selectable:!1,default:!1,mode:"disabled"},e.selectable=!1,e.name="CaptionSettingsMenuItem";var n=_(this,r.call(this,t,e));return n.addClass("vjs-texttrack-settings"),n.controlText(", opens "+e.kind+" settings dialog"),n}return m(i,r),i.prototype.handleClick=function(t){this.player().getChild("textTrackSettings").open()},i}(Ar);Xt.registerComponent("CaptionSettingsMenuItem",Fr);var Rr=function(r){function i(t,e,n){return g(this,i),_(this,r.call(this,t,e,n))}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-captions-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-captions-button "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new Fr(this.player_,{kind:this.kind_})),this.hideThreshold_+=1),r.prototype.createItems.call(this,t)},i}(Mr);Rr.prototype.kind_="captions",Rr.prototype.controlText_="Captions",Xt.registerComponent("CaptionsButton",Rr);var Br=function(i){function t(){return g(this,t),_(this,i.apply(this,arguments))}return m(t,i),t.prototype.createEl=function(t,e,n){var r='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"captions"===this.options_.track.kind&&(r+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Captions")+"</span>\n "),r+="</span>",i.prototype.createEl.call(this,t,k({innerHTML:r},e),n)},t}(Ar);Xt.registerComponent("SubsCapsMenuItem",Br);var Hr=function(r){function i(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};g(this,i);var n=_(this,r.call(this,t,e));return n.label_="subtitles",-1<["en","en-us","en-ca","fr-ca"].indexOf(n.player_.language_)&&(n.label_="captions"),n.menuButton_.controlText(qt(n.label_)),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-subs-caps-button "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-subs-caps-button "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new Fr(this.player_,{kind:this.label_})),this.hideThreshold_+=1),t=r.prototype.createItems.call(this,t,Br)},i}(Mr);Hr.prototype.kinds_=["captions","subtitles"],Hr.prototype.controlText_="Subtitles",Xt.registerComponent("SubsCapsButton",Hr);var Vr=function(s){function a(t,e){g(this,a);var n=e.track,r=t.audioTracks();e.label=n.label||n.language||"Unknown",e.selected=n.enabled;var i=_(this,s.call(this,t,e));i.track=n,i.addClass("vjs-"+n.kind+"-menu-item");var o=function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];i.handleTracksChange.apply(i,e)};return r.addEventListener("change",o),i.on("dispose",function(){r.removeEventListener("change",o)}),i}return m(a,s),a.prototype.createEl=function(t,e,n){var r='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"main-desc"===this.options_.track.kind&&(r+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Descriptions")+"</span>\n "),r+="</span>",s.prototype.createEl.call(this,t,k({innerHTML:r},e),n)},a.prototype.handleClick=function(t){var e=this.player_.audioTracks();s.prototype.handleClick.call(this,t);for(var n=0;n<e.length;n++){var r=e[n];r.enabled=r===this.track}},a.prototype.handleTracksChange=function(t){this.selected(this.track.enabled)},a}(Pr);Xt.registerComponent("AudioTrackMenuItem",Vr);var zr=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return g(this,r),e.tracks=t.audioTracks(),_(this,n.call(this,t,e))}return m(r,n),r.prototype.buildCSSClass=function(){return"vjs-audio-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-audio-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[];this.hideThreshold_=1;for(var e=this.player_.audioTracks(),n=0;n<e.length;n++){var r=e[n];t.push(new Vr(this.player_,{track:r,selectable:!0,multiSelectable:!1}))}return t},r}(jr);zr.prototype.controlText_="Audio Track",Xt.registerComponent("AudioTrackButton",zr);var Wr=function(o){function s(t,e){g(this,s);var n=e.rate,r=parseFloat(n,10);e.label=n,e.selected=1===r,e.selectable=!0,e.multiSelectable=!1;var i=_(this,o.call(this,t,e));return i.label=n,i.rate=r,i.on(t,"ratechange",i.update),i}return m(s,o),s.prototype.handleClick=function(t){o.prototype.handleClick.call(this),this.player().playbackRate(this.rate)},s.prototype.update=function(t){this.selected(this.player().playbackRate()===this.rate)},s}(Pr);Wr.prototype.contentElType="button",Xt.registerComponent("PlaybackRateMenuItem",Wr);var Ur=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.updateVisibility(),n.updateLabel(),n.on(t,"loadstart",n.updateVisibility),n.on(t,"ratechange",n.updateLabel),n}return m(i,r),i.prototype.createEl=function(){var t=r.prototype.createEl.call(this);return this.labelEl_=I("div",{className:"vjs-playback-rate-value",innerHTML:"1x"}),t.appendChild(this.labelEl_),t},i.prototype.dispose=function(){this.labelEl_=null,r.prototype.dispose.call(this)},i.prototype.buildCSSClass=function(){return"vjs-playback-rate "+r.prototype.buildCSSClass.call(this)},i.prototype.buildWrapperCSSClass=function(){return"vjs-playback-rate "+r.prototype.buildWrapperCSSClass.call(this)},i.prototype.createMenu=function(){var t=new wr(this.player()),e=this.playbackRates();if(e)for(var n=e.length-1;0<=n;n--)t.addChild(new Wr(this.player(),{rate:e[n]+"x"}));return t},i.prototype.updateARIAAttributes=function(){this.el().setAttribute("aria-valuenow",this.player().playbackRate())},i.prototype.handleClick=function(t){for(var e=this.player().playbackRate(),n=this.playbackRates(),r=n[0],i=0;i<n.length;i++)if(n[i]>e){r=n[i];break}this.player().playbackRate(r)},i.prototype.playbackRates=function(){return this.options_.playbackRates||this.options_.playerOptions&&this.options_.playerOptions.playbackRates},i.prototype.playbackRateSupported=function(){return this.player().tech_&&this.player().tech_.featuresPlaybackRate&&this.playbackRates()&&0<this.playbackRates().length},i.prototype.updateVisibility=function(t){this.playbackRateSupported()?this.removeClass("vjs-hidden"):this.addClass("vjs-hidden")},i.prototype.updateLabel=function(t){this.playbackRateSupported()&&(this.labelEl_.innerHTML=this.player().playbackRate()+"x")},i}(xr);Ur.prototype.controlText_="Playback Rate",Xt.registerComponent("PlaybackRateMenuButton",Ur);var qr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.buildCSSClass=function(){return"vjs-spacer "+t.prototype.buildCSSClass.call(this)},e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:this.buildCSSClass()})},e}(Xt);Xt.registerComponent("Spacer",qr);var Kr=function(e){function t(){return g(this,t),_(this,e.apply(this,arguments))}return m(t,e),t.prototype.buildCSSClass=function(){return"vjs-custom-control-spacer "+e.prototype.buildCSSClass.call(this)},t.prototype.createEl=function(){var t=e.prototype.createEl.call(this,{className:this.buildCSSClass()});return t.innerHTML=" ",t},t}(qr);Xt.registerComponent("CustomControlSpacer",Kr);var Xr=function(t){function e(){return g(this,e),_(this,t.apply(this,arguments))}return m(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-control-bar",dir:"ltr"})},e}(Xt);Xr.prototype.options_={children:["playToggle","volumePanel","currentTimeDisplay","timeDivider","durationDisplay","progressControl","liveDisplay","remainingTimeDisplay","customControlSpacer","playbackRateMenuButton","chaptersButton","descriptionsButton","subsCapsButton","audioTrackButton","fullscreenToggle"]},Xt.registerComponent("ControlBar",Xr);var $r=function(r){function i(t,e){g(this,i);var n=_(this,r.call(this,t,e));return n.on(t,"error",n.open),n}return m(i,r),i.prototype.buildCSSClass=function(){return"vjs-error-display "+r.prototype.buildCSSClass.call(this)},i.prototype.content=function(){var t=this.player().error();return t?this.localize(t.message):""},i}(Fe);$r.prototype.options_=Kt(Fe.prototype.options_,{pauseOnOpen:!1,fillAlways:!0,temporary:!1,uncloseable:!0}),Xt.registerComponent("ErrorDisplay",$r);var Gr="vjs-text-track-settings",Yr=["#000","Black"],Jr=["#00F","Blue"],Qr=["#0FF","Cyan"],Zr=["#0F0","Green"],ti=["#F0F","Magenta"],ei=["#F00","Red"],ni=["#FFF","White"],ri=["#FF0","Yellow"],ii=["1","Opaque"],oi=["0.5","Semi-Transparent"],si=["0","Transparent"],ai={backgroundColor:{selector:".vjs-bg-color > select",id:"captions-background-color-%s",label:"Color",options:[Yr,ni,ei,Zr,Jr,ri,ti,Qr]},backgroundOpacity:{selector:".vjs-bg-opacity > select",id:"captions-background-opacity-%s",label:"Transparency",options:[ii,oi,si]},color:{selector:".vjs-fg-color > select",id:"captions-foreground-color-%s",label:"Color",options:[ni,Yr,ei,Zr,Jr,ri,ti,Qr]},edgeStyle:{selector:".vjs-edge-style > select",id:"%s",label:"Text Edge Style",options:[["none","None"],["raised","Raised"],["depressed","Depressed"],["uniform","Uniform"],["dropshadow","Dropshadow"]]},fontFamily:{selector:".vjs-font-family > select",id:"captions-font-family-%s",label:"Font Family",options:[["proportionalSansSerif","Proportional Sans-Serif"],["monospaceSansSerif","Monospace Sans-Serif"],["proportionalSerif","Proportional Serif"],["monospaceSerif","Monospace Serif"],["casual","Casual"],["script","Script"],["small-caps","Small Caps"]]},fontPercent:{selector:".vjs-font-percent > select",id:"captions-font-size-%s",label:"Font Size",options:[["0.50","50%"],["0.75","75%"],["1.00","100%"],["1.25","125%"],["1.50","150%"],["1.75","175%"],["2.00","200%"],["3.00","300%"],["4.00","400%"]],default:2,parser:function(t){return"1.00"===t?null:Number(t)}},textOpacity:{selector:".vjs-text-opacity > select",id:"captions-foreground-opacity-%s",label:"Transparency",options:[ii,oi]},windowColor:{selector:".vjs-window-color > select",id:"captions-window-color-%s",label:"Color"},windowOpacity:{selector:".vjs-window-opacity > select",id:"captions-window-opacity-%s",label:"Transparency",options:[si,oi,ii]}};function li(t,e){if(e&&(t=e(t)),t&&"none"!==t)return t}ai.windowColor.options=ai.backgroundColor.options;var ci=function(r){function i(t,e){g(this,i),e.temporary=!1;var n=_(this,r.call(this,t,e));return n.updateDisplay=Pt(n,n.updateDisplay),n.fill(),n.hasBeenOpened_=n.hasBeenFilled_=!0,n.endDialog=I("p",{className:"vjs-control-text",textContent:n.localize("End of dialog window.")}),n.el().appendChild(n.endDialog),n.setDefaults(),void 0===e.persistTextTrackSettings&&(n.options_.persistTextTrackSettings=n.options_.playerOptions.persistTextTrackSettings),n.on(n.$(".vjs-done-button"),"click",function(){n.saveSettings(),n.close()}),n.on(n.$(".vjs-default-button"),"click",function(){n.setDefaults(),n.updateDisplay()}),C(ai,function(t){n.on(n.$(t.selector),"change",n.updateDisplay)}),n.options_.persistTextTrackSettings&&n.restoreSettings(),n}return m(i,r),i.prototype.dispose=function(){this.endDialog=null,r.prototype.dispose.call(this)},i.prototype.createElSelect_=function(t){var n=this,e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"",r=2<arguments.length&&void 0!==arguments[2]?arguments[2]:"label",i=ai[t],o=i.id.replace("%s",this.id_),s=[e,o].join(" ").trim();return["<"+r+' id="'+o+'" class="'+("label"===r?"vjs-label":"")+'">',this.localize(i.label),"</"+r+">",'<select aria-labelledby="'+s+'">'].concat(i.options.map(function(t){var e=o+"-"+t[1].replace(/\W+/g,"");return['<option id="'+e+'" value="'+t[0]+'" ','aria-labelledby="'+s+" "+e+'">',n.localize(t[1]),"</option>"].join("")})).concat("</select>").join("")},i.prototype.createElFgColor_=function(){var t="captions-text-legend-"+this.id_;return['<fieldset class="vjs-fg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Text"),"</legend>",this.createElSelect_("color",t),'<span class="vjs-text-opacity vjs-opacity">',this.createElSelect_("textOpacity",t),"</span>","</fieldset>"].join("")},i.prototype.createElBgColor_=function(){var t="captions-background-"+this.id_;return['<fieldset class="vjs-bg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Background"),"</legend>",this.createElSelect_("backgroundColor",t),'<span class="vjs-bg-opacity vjs-opacity">',this.createElSelect_("backgroundOpacity",t),"</span>","</fieldset>"].join("")},i.prototype.createElWinColor_=function(){var t="captions-window-"+this.id_;return['<fieldset class="vjs-window-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Window"),"</legend>",this.createElSelect_("windowColor",t),'<span class="vjs-window-opacity vjs-opacity">',this.createElSelect_("windowOpacity",t),"</span>","</fieldset>"].join("")},i.prototype.createElColors_=function(){return I("div",{className:"vjs-track-settings-colors",innerHTML:[this.createElFgColor_(),this.createElBgColor_(),this.createElWinColor_()].join("")})},i.prototype.createElFont_=function(){return I("div",{className:"vjs-track-settings-font",innerHTML:['<fieldset class="vjs-font-percent vjs-track-setting">',this.createElSelect_("fontPercent","","legend"),"</fieldset>",'<fieldset class="vjs-edge-style vjs-track-setting">',this.createElSelect_("edgeStyle","","legend"),"</fieldset>",'<fieldset class="vjs-font-family vjs-track-setting">',this.createElSelect_("fontFamily","","legend"),"</fieldset>"].join("")})},i.prototype.createElControls_=function(){var t=this.localize("restore all settings to the default values");return I("div",{className:"vjs-track-settings-controls",innerHTML:['<button class="vjs-default-button" title="'+t+'">',this.localize("Reset"),'<span class="vjs-control-text"> '+t+"</span>","</button>",'<button class="vjs-done-button">'+this.localize("Done")+"</button>"].join("")})},i.prototype.content=function(){return[this.createElColors_(),this.createElFont_(),this.createElControls_()]},i.prototype.label=function(){return this.localize("Caption Settings Dialog")},i.prototype.description=function(){return this.localize("Beginning of dialog window. Escape will cancel and close the window.")},i.prototype.buildCSSClass=function(){return r.prototype.buildCSSClass.call(this)+" vjs-text-track-settings"},i.prototype.getValues=function(){var s=this;return function(n,r){var t=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0;return T(n).reduce(function(t,e){return r(t,n[e],e)},t)}(ai,function(t,e,n){var r,i,o=(r=s.$(e.selector),i=e.parser,li(r.options[r.options.selectedIndex].value,i));return void 0!==o&&(t[n]=o),t},{})},i.prototype.setValues=function(n){var r=this;C(ai,function(t,e){!function(t,e,n){if(e)for(var r=0;r<t.options.length;r++)if(li(t.options[r].value,n)===e){t.selectedIndex=r;break}}(r.$(t.selector),n[e],t.parser)})},i.prototype.setDefaults=function(){var n=this;C(ai,function(t){var e=t.hasOwnProperty("default")?t.default:0;n.$(t.selector).selectedIndex=e})},i.prototype.restoreSettings=function(){var t=void 0;try{t=JSON.parse(d.localStorage.getItem(Gr))}catch(t){y.warn(t)}t&&this.setValues(t)},i.prototype.saveSettings=function(){if(this.options_.persistTextTrackSettings){var t=this.getValues();try{Object.keys(t).length?d.localStorage.setItem(Gr,JSON.stringify(t)):d.localStorage.removeItem(Gr)}catch(t){y.warn(t)}}},i.prototype.updateDisplay=function(){var t=this.player_.getChild("textTrackDisplay");t&&t.updateDisplay()},i.prototype.conditionalBlur_=function(){this.previouslyActiveEl_=null,this.off(f,"keydown",this.handleKeyDown);var t=this.player_.controlBar,e=t&&t.subsCapsButton,n=t&&t.captionsButton;e?e.focus():n&&n.focus()},i}(Fe);Xt.registerComponent("TextTrackSettings",ci);var ui=function(o){function s(t,e){g(this,s);var n=e.ResizeObserver||d.ResizeObserver;null===e.ResizeObserver&&(n=!1);var r=Kt({createEl:!n,reportTouchActivity:!1},e),i=_(this,o.call(this,t,r));return i.ResizeObserver=e.ResizeObserver||d.ResizeObserver,i.loadListener_=null,i.resizeObserver_=null,i.debouncedHandler_=Ot(function(){i.resizeHandler()},100,!1,i),n?(i.resizeObserver_=new i.ResizeObserver(i.debouncedHandler_),i.resizeObserver_.observe(t.el())):(i.loadListener_=function(){i.el_&&i.el_.contentWindow&&mt(i.el_.contentWindow,"resize",i.debouncedHandler_)},i.one("load",i.loadListener_)),i}return m(s,o),s.prototype.createEl=function(){return o.prototype.createEl.call(this,"iframe",{className:"vjs-resize-manager"})},s.prototype.resizeHandler=function(){this.player_&&this.player_.trigger&&this.player_.trigger("playerresize")},s.prototype.dispose=function(){this.debouncedHandler_&&this.debouncedHandler_.cancel(),this.resizeObserver_&&(this.player_.el()&&this.resizeObserver_.unobserve(this.player_.el()),this.resizeObserver_.disconnect()),this.el_&&this.el_.contentWindow&&_t(this.el_.contentWindow,"resize",this.debouncedHandler_),this.loadListener_&&this.off("load",this.loadListener_),this.ResizeObserver=null,this.resizeObserver=null,this.debouncedHandler_=null,this.loadListener_=null},s}(Xt);Xt.registerComponent("ResizeManager",ui);var hi=function(t){var e=t.el();if(e.hasAttribute("src"))return t.triggerSourceset(e.src),!0;var n=t.$$("source"),r=[],i="";if(!n.length)return!1;for(var o=0;o<n.length;o++){var s=n[o].src;s&&-1===r.indexOf(s)&&r.push(s)}return!!r.length&&(1===r.length&&(i=r[0]),t.triggerSourceset(i),!0)},pi=Object.defineProperty({},"innerHTML",{get:function(){return this.cloneNode(!0).innerHTML},set:function(t){var e=f.createElement(this.nodeName.toLowerCase());e.innerHTML=t;for(var n=f.createDocumentFragment();e.childNodes.length;)n.appendChild(e.childNodes[0]);return this.innerText="",d.Element.prototype.appendChild.call(this,n),this.innerHTML}}),di=function(t,e){for(var n={},r=0;r<t.length&&!((n=Object.getOwnPropertyDescriptor(t[r],e))&&n.set&&n.get);r++);return n.enumerable=!0,n.configurable=!0,n},fi=function(o){var s=o.el();if(!s.resetSourceWatch_){var e={},t=di([o.el(),d.HTMLMediaElement.prototype,d.Element.prototype,pi],"innerHTML"),n=function(i){return function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];var r=i.apply(s,e);return hi(o),r}};["append","appendChild","insertAdjacentHTML"].forEach(function(t){s[t]&&(e[t]=s[t],s[t]=n(e[t]))}),Object.defineProperty(s,"innerHTML",Kt(t,{set:n(t.set)})),s.resetSourceWatch_=function(){s.resetSourceWatch_=null,Object.keys(e).forEach(function(t){s[t]=e[t]}),Object.defineProperty(s,"innerHTML",t)},o.one("sourceset",s.resetSourceWatch_)}},yi=Object.defineProperty({},"src",{get:function(){return this.hasAttribute("src")?Ze(d.Element.prototype.getAttribute.call(this,"src")):""},set:function(t){return d.Element.prototype.setAttribute.call(this,"src",t),t}}),vi=function(r){if(r.featuresSourceset){var i=r.el();if(!i.resetSourceset_){var n=di([r.el(),d.HTMLMediaElement.prototype,yi],"src"),o=i.setAttribute,e=i.load;Object.defineProperty(i,"src",Kt(n,{set:function(t){var e=n.set.call(i,t);return r.triggerSourceset(i.src),e}})),i.setAttribute=function(t,e){var n=o.call(i,t,e);return/src/i.test(t)&&r.triggerSourceset(i.src),n},i.load=function(){var t=e.call(i);return hi(r)||(r.triggerSourceset(""),fi(r)),t},i.currentSrc?r.triggerSourceset(i.currentSrc):hi(r)||fi(r),i.resetSourceset_=function(){i.resetSourceset_=null,i.load=e,i.setAttribute=o,Object.defineProperty(i,"src",n),i.resetSourceWatch_&&i.resetSourceWatch_()}}}},gi=h(["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."],["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."]),mi=function(u){function h(t,e){g(this,h);var n=_(this,u.call(this,t,e)),r=t.source,i=!1;if(r&&(n.el_.currentSrc!==r.src||t.tag&&3===t.tag.initNetworkState_)?n.setSource(r):n.handleLateInit_(n.el_),t.enableSourceset&&n.setupSourcesetHandling_(),n.el_.hasChildNodes()){for(var o=n.el_.childNodes,s=o.length,a=[];s--;){var l=o[s];"track"===l.nodeName.toLowerCase()&&(n.featuresNativeTextTracks?(n.remoteTextTrackEls().addTrackElement_(l),n.remoteTextTracks().addTrack(l.track),n.textTracks().addTrack(l.track),i||n.el_.hasAttribute("crossorigin")||!en(l.src)||(i=!0)):a.push(l))}for(var c=0;c<a.length;c++)n.el_.removeChild(a[c])}return n.proxyNativeTracks_(),n.featuresNativeTextTracks&&i&&y.warn(v(gi)),n.restoreMetadataTracksInIOSNativePlayer_(),(ve||ne||le)&&!0===t.nativeControlsForTouch&&n.setControls(!0),n.proxyWebkitFullscreen_(),n.triggerReady(),n}return m(h,u),h.prototype.dispose=function(){this.el_&&this.el_.resetSourceset_&&this.el_.resetSourceset_(),h.disposeMediaElement(this.el_),this.options_=null,u.prototype.dispose.call(this)},h.prototype.setupSourcesetHandling_=function(){vi(this)},h.prototype.restoreMetadataTracksInIOSNativePlayer_=function(){var r=this.textTracks(),i=void 0,t=function(){i=[];for(var t=0;t<r.length;t++){var e=r[t];"metadata"===e.kind&&i.push({track:e,storedMode:e.mode})}};t(),r.addEventListener("change",t),this.on("dispose",function(){return r.removeEventListener("change",t)});var e=function t(){for(var e=0;e<i.length;e++){var n=i[e];"disabled"===n.track.mode&&n.track.mode!==n.storedMode&&(n.track.mode=n.storedMode)}r.removeEventListener("change",t)};this.on("webkitbeginfullscreen",function(){r.removeEventListener("change",t),r.removeEventListener("change",e),r.addEventListener("change",e)}),this.on("webkitendfullscreen",function(){r.removeEventListener("change",t),r.addEventListener("change",t),r.removeEventListener("change",e)})},h.prototype.overrideNative_=function(t,e){var n=this;if(e===this["featuresNative"+t+"Tracks"]){var r=t.toLowerCase();this[r+"TracksListeners_"]&&Object.keys(this[r+"TracksListeners_"]).forEach(function(t){n.el()[r+"Tracks"].removeEventListener(t,n[r+"TracksListeners_"][t])}),this["featuresNative"+t+"Tracks"]=!e,this[r+"TracksListeners_"]=null,this.proxyNativeTracksForType_(r)}},h.prototype.overrideNativeAudioTracks=function(t){this.overrideNative_("Audio",t)},h.prototype.overrideNativeVideoTracks=function(t){this.overrideNative_("Video",t)},h.prototype.proxyNativeTracksForType_=function(t){var r=this,e=wn[t],i=this.el()[e.getterName],o=this[e.getterName]();if(this["featuresNative"+e.capitalName+"Tracks"]&&i&&i.addEventListener){var s={change:function(t){o.trigger({type:"change",target:o,currentTarget:o,srcElement:o})},addtrack:function(t){o.addTrack(t.track)},removetrack:function(t){o.removeTrack(t.track)}},n=function(){for(var t=[],e=0;e<o.length;e++){for(var n=!1,r=0;r<i.length;r++)if(i[r]===o[e]){n=!0;break}n||t.push(o[e])}for(;t.length;)o.removeTrack(t.shift())};this[e.getterName+"Listeners_"]=s,Object.keys(s).forEach(function(e){var n=s[e];i.addEventListener(e,n),r.on("dispose",function(t){return i.removeEventListener(e,n)})}),this.on("loadstart",n),this.on("dispose",function(t){return r.off("loadstart",n)})}},h.prototype.proxyNativeTracks_=function(){var e=this;wn.names.forEach(function(t){e.proxyNativeTracksForType_(t)})},h.prototype.createEl=function(){var t=this.options_.tag;if(!t||!this.options_.playerElIngest&&!this.movingMediaElementInDOM){if(t){var e=t.cloneNode(!0);t.parentNode&&t.parentNode.insertBefore(e,t),h.disposeMediaElement(t),t=e}else{t=f.createElement("video");var n=Kt({},this.options_.tag&&z(this.options_.tag));ve&&!0===this.options_.nativeControlsForTouch||delete n.controls,V(t,k(n,{id:this.options_.techId,class:"vjs-tech"}))}t.playerId=this.options_.playerId}"undefined"!=typeof this.options_.preload&&U(t,"preload",this.options_.preload);for(var r=["loop","muted","playsinline","autoplay"],i=0;i<r.length;i++){var o=r[i],s=this.options_[o];"undefined"!=typeof s&&(s?U(t,o,o):q(t,o),t[o]=s)}return t},h.prototype.handleLateInit_=function(t){if(0!==t.networkState&&3!==t.networkState){if(0===t.readyState){var e=!1,n=function(){e=!0};this.on("loadstart",n);var r=function(){e||this.trigger("loadstart")};return this.on("loadedmetadata",r),void this.ready(function(){this.off("loadstart",n),this.off("loadedmetadata",r),e||this.trigger("loadstart")})}var i=["loadstart"];i.push("loadedmetadata"),2<=t.readyState&&i.push("loadeddata"),3<=t.readyState&&i.push("canplay"),4<=t.readyState&&i.push("canplaythrough"),this.ready(function(){i.forEach(function(t){this.trigger(t)},this)})}},h.prototype.setCurrentTime=function(t){try{this.el_.currentTime=t}catch(t){y(t,"Video is not ready. (Video.js)")}},h.prototype.duration=function(){var e=this;if(this.el_.duration===1/0&&se&&he&&0===this.el_.currentTime){return this.on("timeupdate",function t(){0<e.el_.currentTime&&(e.el_.duration===1/0&&e.trigger("durationchange"),e.off("timeupdate",t))}),NaN}return this.el_.duration||NaN},h.prototype.width=function(){return this.el_.offsetWidth},h.prototype.height=function(){return this.el_.offsetHeight},h.prototype.proxyWebkitFullscreen_=function(){var t=this;if("webkitDisplayingFullscreen"in this.el_){var e=function(){this.trigger("fullscreenchange",{isFullscreen:!1})},n=function(){"webkitPresentationMode"in this.el_&&"picture-in-picture"!==this.el_.webkitPresentationMode&&(this.one("webkitendfullscreen",e),this.trigger("fullscreenchange",{isFullscreen:!0}))};this.on("webkitbeginfullscreen",n),this.on("dispose",function(){t.off("webkitbeginfullscreen",n),t.off("webkitendfullscreen",e)})}},h.prototype.supportsFullScreen=function(){if("function"==typeof this.el_.webkitEnterFullScreen){var t=d.navigator&&d.navigator.userAgent||"";if(/Android/.test(t)||!/Chrome|Mac OS X 10.5/.test(t))return!0}return!1},h.prototype.enterFullScreen=function(){var t=this.el_;t.paused&&t.networkState<=t.HAVE_METADATA?(this.el_.play(),this.setTimeout(function(){t.pause(),t.webkitEnterFullScreen()},0)):t.webkitEnterFullScreen()},h.prototype.exitFullScreen=function(){this.el_.webkitExitFullScreen()},h.prototype.src=function(t){if(void 0===t)return this.el_.src;this.setSrc(t)},h.prototype.reset=function(){h.resetMediaElement(this.el_)},h.prototype.currentSrc=function(){return this.currentSource_?this.currentSource_.src:this.el_.currentSrc},h.prototype.setControls=function(t){this.el_.controls=!!t},h.prototype.addTextTrack=function(t,e,n){return this.featuresNativeTextTracks?this.el_.addTextTrack(t,e,n):u.prototype.addTextTrack.call(this,t,e,n)},h.prototype.createRemoteTextTrack=function(t){if(!this.featuresNativeTextTracks)return u.prototype.createRemoteTextTrack.call(this,t);var e=f.createElement("track");return t.kind&&(e.kind=t.kind),t.label&&(e.label=t.label),(t.language||t.srclang)&&(e.srclang=t.language||t.srclang),t.default&&(e.default=t.default),t.id&&(e.id=t.id),t.src&&(e.src=t.src),e},h.prototype.addRemoteTextTrack=function(t,e){var n=u.prototype.addRemoteTextTrack.call(this,t,e);return this.featuresNativeTextTracks&&this.el().appendChild(n),n},h.prototype.removeRemoteTextTrack=function(t){if(u.prototype.removeRemoteTextTrack.call(this,t),this.featuresNativeTextTracks)for(var e=this.$$("track"),n=e.length;n--;)t!==e[n]&&t!==e[n].track||this.el().removeChild(e[n])},h.prototype.getVideoPlaybackQuality=function(){if("function"==typeof this.el().getVideoPlaybackQuality)return this.el().getVideoPlaybackQuality();var t={};return"undefined"!=typeof this.el().webkitDroppedFrameCount&&"undefined"!=typeof this.el().webkitDecodedFrameCount&&(t.droppedVideoFrames=this.el().webkitDroppedFrameCount,t.totalVideoFrames=this.el().webkitDecodedFrameCount),d.performance&&"function"==typeof d.performance.now?t.creationTime=d.performance.now():d.performance&&d.performance.timing&&"number"==typeof d.performance.timing.navigationStart&&(t.creationTime=d.Date.now()-d.performance.timing.navigationStart),t},h}(An);if(A()){mi.TEST_VID=f.createElement("video");var _i=f.createElement("track");_i.kind="captions",_i.srclang="en",_i.label="English",mi.TEST_VID.appendChild(_i)}mi.isSupported=function(){try{mi.TEST_VID.volume=.5}catch(t){return!1}return!(!mi.TEST_VID||!mi.TEST_VID.canPlayType)},mi.canPlayType=function(t){return mi.TEST_VID.canPlayType(t)},mi.canPlaySource=function(t,e){return mi.canPlayType(t.type)},mi.canControlVolume=function(){try{var t=mi.TEST_VID.volume;return mi.TEST_VID.volume=t/2+.1,t!==mi.TEST_VID.volume}catch(t){return!1}},mi.canMuteVolume=function(){try{var t=mi.TEST_VID.muted;return mi.TEST_VID.muted=!t,mi.TEST_VID.muted?U(mi.TEST_VID,"muted","muted"):q(mi.TEST_VID,"muted"),t!==mi.TEST_VID.muted}catch(t){return!1}},mi.canControlPlaybackRate=function(){if(se&&he&&pe<58)return!1;try{var t=mi.TEST_VID.playbackRate;return mi.TEST_VID.playbackRate=t/2+.1,t!==mi.TEST_VID.playbackRate}catch(t){return!1}},mi.canOverrideAttributes=function(){try{var t=function(){};Object.defineProperty(f.createElement("video"),"src",{get:t,set:t}),Object.defineProperty(f.createElement("audio"),"src",{get:t,set:t}),Object.defineProperty(f.createElement("video"),"innerHTML",{get:t,set:t}),Object.defineProperty(f.createElement("audio"),"innerHTML",{get:t,set:t})}catch(t){return!1}return!0},mi.supportsNativeTextTracks=function(){return ye||ie&&he},mi.supportsNativeVideoTracks=function(){return!(!mi.TEST_VID||!mi.TEST_VID.videoTracks)},mi.supportsNativeAudioTracks=function(){return!(!mi.TEST_VID||!mi.TEST_VID.audioTracks)},mi.Events=["loadstart","suspend","abort","error","emptied","stalled","loadedmetadata","loadeddata","canplay","canplaythrough","playing","waiting","seeking","seeked","ended","durationchange","timeupdate","progress","play","pause","ratechange","resize","volumechange"],mi.prototype.featuresVolumeControl=mi.canControlVolume(),mi.prototype.featuresMuteControl=mi.canMuteVolume(),mi.prototype.featuresPlaybackRate=mi.canControlPlaybackRate(),mi.prototype.featuresSourceset=mi.canOverrideAttributes(),mi.prototype.movingMediaElementInDOM=!ie,mi.prototype.featuresFullscreenResize=!0,mi.prototype.featuresProgressEvents=!0,mi.prototype.featuresTimeupdateEvents=!0,mi.prototype.featuresNativeTextTracks=mi.supportsNativeTextTracks(),mi.prototype.featuresNativeVideoTracks=mi.supportsNativeVideoTracks(),mi.prototype.featuresNativeAudioTracks=mi.supportsNativeAudioTracks();var bi=mi.TEST_VID&&mi.TEST_VID.constructor.prototype.canPlayType,Ti=/^application\/(?:x-|vnd\.apple\.)mpegurl/i;mi.patchCanPlayType=function(){4<=ae&&!ce&&!he&&(mi.TEST_VID.constructor.prototype.canPlayType=function(t){return t&&Ti.test(t)?"maybe":bi.call(this,t)})},mi.unpatchCanPlayType=function(){var t=mi.TEST_VID.constructor.prototype.canPlayType;return mi.TEST_VID.constructor.prototype.canPlayType=bi,t},mi.patchCanPlayType(),mi.disposeMediaElement=function(t){if(t){for(t.parentNode&&t.parentNode.removeChild(t);t.hasChildNodes();)t.removeChild(t.firstChild);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},mi.resetMediaElement=function(t){if(t){for(var e=t.querySelectorAll("source"),n=e.length;n--;)t.removeChild(e[n]);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},["muted","defaultMuted","autoplay","controls","loop","playsinline"].forEach(function(t){mi.prototype[t]=function(){return this.el_[t]||this.el_.hasAttribute(t)}}),["muted","defaultMuted","autoplay","loop","playsinline"].forEach(function(e){mi.prototype["set"+qt(e)]=function(t){(this.el_[e]=t)?this.el_.setAttribute(e,e):this.el_.removeAttribute(e)}}),["paused","currentTime","buffered","volume","poster","preload","error","seeking","seekable","ended","playbackRate","defaultPlaybackRate","played","networkState","readyState","videoWidth","videoHeight"].forEach(function(t){mi.prototype[t]=function(){return this.el_[t]}}),["volume","src","poster","preload","playbackRate","defaultPlaybackRate"].forEach(function(e){mi.prototype["set"+qt(e)]=function(t){this.el_[e]=t}}),["pause","load","play"].forEach(function(t){mi.prototype[t]=function(){return this.el_[t]()}}),An.withSourceHandlers(mi),mi.nativeSourceHandler={},mi.nativeSourceHandler.canPlayType=function(t){try{return mi.TEST_VID.canPlayType(t)}catch(t){return""}},mi.nativeSourceHandler.canHandleSource=function(t,e){if(t.type)return mi.nativeSourceHandler.canPlayType(t.type);if(t.src){var n=tn(t.src);return mi.nativeSourceHandler.canPlayType("video/"+n)}return""},mi.nativeSourceHandler.handleSource=function(t,e,n){e.setSrc(t.src)},mi.nativeSourceHandler.dispose=function(){},mi.registerSourceHandler(mi.nativeSourceHandler),An.registerTech("Html5",mi);var Ci=h(["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "],["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "]),ki=["progress","abort","suspend","emptied","stalled","loadedmetadata","loadeddata","timeupdate","resize","volumechange","texttrackchange"],Ei={canplay:"CanPlay",canplaythrough:"CanPlayThrough",playing:"Playing",seeked:"Seeked"},Si=function(u){function h(t,e,n){if(g(this,h),t.id=t.id||e.id||"vjs_video_"+at(),(e=k(h.getTagSettings(t),e)).initChildren=!1,e.createEl=!1,e.evented=!1,e.reportTouchActivity=!1,!e.language)if("function"==typeof t.closest){var r=t.closest("[lang]");r&&r.getAttribute&&(e.language=r.getAttribute("lang"))}else for(var i=t;i&&1===i.nodeType;){if(z(i).hasOwnProperty("lang")){e.language=i.getAttribute("lang");break}i=i.parentNode}var o=_(this,u.call(this,null,e,n));if(o.isPosterFromTech_=!1,o.queuedCallbacks_=[],o.isReady_=!1,o.hasStarted_=!1,o.userActive_=!1,!o.options_||!o.options_.techOrder||!o.options_.techOrder.length)throw new Error("No techOrder specified. Did you overwrite videojs.options instead of just changing the properties you want to override?");if(o.tag=t,o.tagAttributes=t&&z(t),o.language(o.options_.language),e.languages){var s={};Object.getOwnPropertyNames(e.languages).forEach(function(t){s[t.toLowerCase()]=e.languages[t]}),o.languages_=s}else o.languages_=h.prototype.options_.languages;o.cache_={},o.poster_=e.poster||"",o.controls_=!!e.controls,o.cache_.lastVolume=1,t.controls=!1,t.removeAttribute("controls"),t.hasAttribute("autoplay")?o.options_.autoplay=!0:o.autoplay(o.options_.autoplay),o.scrubbing_=!1,o.el_=o.createEl(),o.cache_.lastPlaybackRate=o.defaultPlaybackRate(),zt(o,{eventBusKey:"el_"});var a=Kt(o.options_);if(e.plugins){var l=e.plugins;Object.keys(l).forEach(function(t){if("function"!=typeof this[t])throw new Error('plugin "'+t+'" does not exist');this[t](l[t])},o)}o.options_.playerOptions=a,o.middleware_=[],o.initChildren(),o.isAudio("audio"===t.nodeName.toLowerCase()),o.controls()?o.addClass("vjs-controls-enabled"):o.addClass("vjs-controls-disabled"),o.el_.setAttribute("role","region"),o.isAudio()?o.el_.setAttribute("aria-label",o.localize("Audio Player")):o.el_.setAttribute("aria-label",o.localize("Video Player")),o.isAudio()&&o.addClass("vjs-audio"),o.flexNotSupported_()&&o.addClass("vjs-no-flex"),ie||o.addClass("vjs-workinghover"),h.players[o.id_]=o;var c=p.split(".")[0];return o.addClass("vjs-v"+c),o.userActive(!0),o.reportUserActivity(),o.one("play",o.listenForUserActivity_),o.on("fullscreenchange",o.handleFullscreenChange_),o.on("stageclick",o.handleStageClick_),o.changingSrc_=!1,o.playWaitingForReady_=!1,o.playOnLoadstart_=null,o}return m(h,u),h.prototype.dispose=function(){this.trigger("dispose"),this.off("dispose"),this.styleEl_&&this.styleEl_.parentNode&&(this.styleEl_.parentNode.removeChild(this.styleEl_),this.styleEl_=null),h.players[this.id_]=null,this.tag&&this.tag.player&&(this.tag.player=null),this.el_&&this.el_.player&&(this.el_.player=null),this.tech_&&(this.tech_.dispose(),this.isPosterFromTech_=!1,this.poster_=""),this.playerElIngest_&&(this.playerElIngest_=null),this.tag&&(this.tag=null),Mn[this.id()]=null,u.prototype.dispose.call(this)},h.prototype.createEl=function(){var e=this.tag,n=void 0,t=this.playerElIngest_=e.parentNode&&e.parentNode.hasAttribute&&e.parentNode.hasAttribute("data-vjs-player"),r="video-js"===this.tag.tagName.toLowerCase();t?n=this.el_=e.parentNode:r||(n=this.el_=u.prototype.createEl.call(this,"div"));var i=z(e);if(r){for(n=this.el_=e,e=this.tag=f.createElement("video");n.children.length;)e.appendChild(n.firstChild);F(n,"video-js")||R(n,"video-js"),n.appendChild(e),t=this.playerElIngest_=n,Object.keys(n).forEach(function(t){e[t]=n[t]})}if(e.setAttribute("tabindex","-1"),i.tabindex="-1",de&&(e.setAttribute("role","application"),i.role="application"),e.removeAttribute("width"),e.removeAttribute("height"),"width"in i&&delete i.width,"height"in i&&delete i.height,Object.getOwnPropertyNames(i).forEach(function(t){r&&"class"===t||n.setAttribute(t,i[t]),r&&e.setAttribute(t,i[t])}),e.playerId=e.id,e.id+="_html5_api",e.className="vjs-tech",e.player=n.player=this,this.addClass("vjs-paused"),!0!==d.VIDEOJS_NO_DYNAMIC_STYLE){this.styleEl_=xt("vjs-styles-dimensions");var o=rt(".vjs-styles-defaults"),s=rt("head");s.insertBefore(this.styleEl_,o?o.nextSibling:s.firstChild)}this.width(this.options_.width),this.height(this.options_.height),this.fluid(this.options_.fluid),this.aspectRatio(this.options_.aspectRatio);for(var a=e.getElementsByTagName("a"),l=0;l<a.length;l++){var c=a.item(l);R(c,"vjs-hidden"),c.setAttribute("hidden","hidden")}return e.initNetworkState_=e.networkState,e.parentNode&&!t&&e.parentNode.insertBefore(n,e),L(e,n),this.children_.unshift(e),this.el_.setAttribute("lang",this.language_),this.el_=n},h.prototype.width=function(t){return this.dimension("width",t)},h.prototype.height=function(t){return this.dimension("height",t)},h.prototype.dimension=function(t,e){var n=t+"_";if(void 0===e)return this[n]||0;if(""===e)return this[n]=void 0,void this.updateStyleEl_();var r=parseFloat(e);isNaN(r)?y.error('Improper value "'+e+'" supplied for for '+t):(this[n]=r,this.updateStyleEl_())},h.prototype.fluid=function(t){if(void 0===t)return!!this.fluid_;this.fluid_=!!t,t?this.addClass("vjs-fluid"):this.removeClass("vjs-fluid"),this.updateStyleEl_()},h.prototype.aspectRatio=function(t){if(void 0===t)return this.aspectRatio_;if(!/^\d+\:\d+$/.test(t))throw new Error("Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.");this.aspectRatio_=t,this.fluid(!0),this.updateStyleEl_()},h.prototype.updateStyleEl_=function(){if(!0!==d.VIDEOJS_NO_DYNAMIC_STYLE){var t=void 0,e=void 0,n=void 0,r=(void 0!==this.aspectRatio_&&"auto"!==this.aspectRatio_?this.aspectRatio_:0<this.videoWidth()?this.videoWidth()+":"+this.videoHeight():"16:9").split(":"),i=r[1]/r[0];t=void 0!==this.width_?this.width_:void 0!==this.height_?this.height_/i:this.videoWidth()||300,e=void 0!==this.height_?this.height_:t*i,n=/^[^a-zA-Z]/.test(this.id())?"dimensions-"+this.id():this.id()+"-dimensions",this.addClass(n),jt(this.styleEl_,"\n ."+n+" {\n width: "+t+"px;\n height: "+e+"px;\n }\n\n ."+n+".vjs-fluid {\n padding-top: "+100*i+"%;\n }\n ")}else{var o="number"==typeof this.width_?this.width_:this.options_.width,s="number"==typeof this.height_?this.height_:this.options_.height,a=this.tech_&&this.tech_.el();a&&(0<=o&&(a.width=o),0<=s&&(a.height=s))}},h.prototype.loadTech_=function(t,e){var n=this;this.tech_&&this.unloadTech_();var r=qt(t),i=t.charAt(0).toLowerCase()+t.slice(1);"Html5"!==r&&this.tag&&(An.getTech("Html5").disposeMediaElement(this.tag),this.tag.player=null,this.tag=null),this.techName_=r,this.isReady_=!1;var o={source:e,autoplay:"string"!=typeof this.autoplay()&&this.autoplay(),nativeControlsForTouch:this.options_.nativeControlsForTouch,playerId:this.id(),techId:this.id()+"_"+i+"_api",playsinline:this.options_.playsinline,preload:this.options_.preload,loop:this.options_.loop,muted:this.options_.muted,poster:this.poster(),language:this.language(),playerElIngest:this.playerElIngest_||!1,"vtt.js":this.options_["vtt.js"],canOverridePoster:!!this.options_.techCanOverridePoster,enableSourceset:this.options_.enableSourceset};jn.names.forEach(function(t){var e=jn[t];o[e.getterName]=n[e.privateName]}),k(o,this.options_[r]),k(o,this.options_[i]),k(o,this.options_[t.toLowerCase()]),this.tag&&(o.tag=this.tag),e&&e.src===this.cache_.src&&0<this.cache_.currentTime&&(o.startTime=this.cache_.currentTime);var s=An.getTech(t);if(!s)throw new Error("No Tech named '"+r+"' exists! '"+r+"' should be registered using videojs.registerTech()'");this.tech_=new s(o),this.tech_.ready(Pt(this,this.handleTechReady_),!0),De(this.textTracksJson_||[],this.tech_),ki.forEach(function(t){n.on(n.tech_,t,n["handleTech"+qt(t)+"_"])}),Object.keys(Ei).forEach(function(e){n.on(n.tech_,e,function(t){0===n.tech_.playbackRate()&&n.tech_.seeking()?n.queuedCallbacks_.push({callback:n["handleTech"+Ei[e]+"_"].bind(n),event:t}):n["handleTech"+Ei[e]+"_"](t)})}),this.on(this.tech_,"loadstart",this.handleTechLoadStart_),this.on(this.tech_,"sourceset",this.handleTechSourceset_),this.on(this.tech_,"waiting",this.handleTechWaiting_),this.on(this.tech_,"ended",this.handleTechEnded_),this.on(this.tech_,"seeking",this.handleTechSeeking_),this.on(this.tech_,"play",this.handleTechPlay_),this.on(this.tech_,"firstplay",this.handleTechFirstPlay_),this.on(this.tech_,"pause",this.handleTechPause_),this.on(this.tech_,"durationchange",this.handleTechDurationChange_),this.on(this.tech_,"fullscreenchange",this.handleTechFullscreenChange_),this.on(this.tech_,"error",this.handleTechError_),this.on(this.tech_,"loadedmetadata",this.updateStyleEl_),this.on(this.tech_,"posterchange",this.handleTechPosterChange_),this.on(this.tech_,"textdata",this.handleTechTextData_),this.on(this.tech_,"ratechange",this.handleTechRateChange_),this.usingNativeControls(this.techGet_("controls")),this.controls()&&!this.usingNativeControls()&&this.addTechControlsListeners_(),this.tech_.el().parentNode===this.el()||"Html5"===r&&this.tag||L(this.tech_.el(),this.el()),this.tag&&(this.tag.player=null,this.tag=null)},h.prototype.unloadTech_=function(){var n=this;jn.names.forEach(function(t){var e=jn[t];n[e.privateName]=n[e.getterName]()}),this.textTracksJson_=Ie(this.tech_),this.isReady_=!1,this.tech_.dispose(),this.tech_=!1,this.isPosterFromTech_&&(this.poster_="",this.trigger("posterchange")),this.isPosterFromTech_=!1},h.prototype.tech=function(t){return void 0===t&&y.warn(v(Ci)),this.tech_},h.prototype.addTechControlsListeners_=function(){this.removeTechControlsListeners_(),this.on(this.tech_,"mousedown",this.handleTechClick_),this.on(this.tech_,"dblclick",this.handleTechDoubleClick_),this.on(this.tech_,"touchstart",this.handleTechTouchStart_),this.on(this.tech_,"touchmove",this.handleTechTouchMove_),this.on(this.tech_,"touchend",this.handleTechTouchEnd_),this.on(this.tech_,"tap",this.handleTechTap_)},h.prototype.removeTechControlsListeners_=function(){this.off(this.tech_,"tap",this.handleTechTap_),this.off(this.tech_,"touchstart",this.handleTechTouchStart_),this.off(this.tech_,"touchmove",this.handleTechTouchMove_),this.off(this.tech_,"touchend",this.handleTechTouchEnd_),this.off(this.tech_,"mousedown",this.handleTechClick_),this.off(this.tech_,"dblclick",this.handleTechDoubleClick_)},h.prototype.handleTechReady_=function(){this.triggerReady(),this.cache_.volume&&this.techCall_("setVolume",this.cache_.volume),this.handleTechPosterChange_(),this.handleTechDurationChange_()},h.prototype.handleTechLoadStart_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-seeking"),this.error(null),this.paused()?(this.hasStarted(!1),this.trigger("loadstart")):(this.trigger("loadstart"),this.trigger("firstplay")),this.manualAutoplay_(this.autoplay())},h.prototype.manualAutoplay_=function(e){var n=this;if(this.tech_&&"string"==typeof e){var t=function(){var e=n.muted();n.muted(!0);var t=n.play();if(t&&t.then&&t.catch)return t.catch(function(t){n.muted(e)})},r=void 0;if("any"===e?(r=this.play())&&r.then&&r.catch&&r.catch(function(){return t()}):r="muted"===e?t():this.play(),r&&r.then&&r.catch)return r.then(function(){n.trigger({type:"autoplay-success",autoplay:e})}).catch(function(t){n.trigger({type:"autoplay-failure",autoplay:e})})}},h.prototype.updateSourceCaches_=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=t,n="";if("string"!=typeof e&&(e=t.src,n=t.type),!/^blob:/.test(e)){this.cache_.source=this.cache_.source||{},this.cache_.sources=this.cache_.sources||[],e&&!n&&(n=function(t,e){if(!e)return"";if(t.cache_.source.src===e&&t.cache_.source.type)return t.cache_.source.type;var n=t.cache_.sources.filter(function(t){return t.src===e});if(n.length)return n[0].type;for(var r=t.$$("source"),i=0;i<r.length;i++){var o=r[i];if(o.type&&o.src&&o.src===e)return o.type}return Vn(e)}(this,e)),this.cache_.source=Kt({},t,{src:e,type:n});for(var r=this.cache_.sources.filter(function(t){return t.src&&t.src===e}),i=[],o=this.$$("source"),s=[],a=0;a<o.length;a++){var l=z(o[a]);i.push(l),l.src&&l.src===e&&s.push(l.src)}s.length&&!r.length?this.cache_.sources=i:r.length||(this.cache_.sources=[this.cache_.source]),this.cache_.src=e}},h.prototype.handleTechSourceset_=function(t){var n=this;if(!this.changingSrc_&&(this.updateSourceCaches_(t.src),!t.src)){this.tech_.one(["sourceset","loadstart"],function t(e){"sourceset"!==e.type&&n.updateSourceCaches_(n.techGet_("currentSrc")),n.tech_.off(["sourceset","loadstart"],t)})}this.trigger({src:t.src,type:"sourceset"})},h.prototype.hasStarted=function(t){if(void 0===t)return this.hasStarted_;t!==this.hasStarted_&&(this.hasStarted_=t,this.hasStarted_?(this.addClass("vjs-has-started"),this.trigger("firstplay")):this.removeClass("vjs-has-started"))},h.prototype.handleTechPlay_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.hasStarted(!0),this.trigger("play")},h.prototype.handleTechRateChange_=function(){0<this.tech_.playbackRate()&&0===this.cache_.lastPlaybackRate&&(this.queuedCallbacks_.forEach(function(t){return t.callback(t.event)}),this.queuedCallbacks_=[]),this.cache_.lastPlaybackRate=this.tech_.playbackRate(),this.trigger("ratechange")},h.prototype.handleTechWaiting_=function(){var t=this;this.addClass("vjs-waiting"),this.trigger("waiting"),this.one("timeupdate",function(){return t.removeClass("vjs-waiting")})},h.prototype.handleTechCanPlay_=function(){this.removeClass("vjs-waiting"),this.trigger("canplay")},h.prototype.handleTechCanPlayThrough_=function(){this.removeClass("vjs-waiting"),this.trigger("canplaythrough")},h.prototype.handleTechPlaying_=function(){this.removeClass("vjs-waiting"),this.trigger("playing")},h.prototype.handleTechSeeking_=function(){this.addClass("vjs-seeking"),this.trigger("seeking")},h.prototype.handleTechSeeked_=function(){this.removeClass("vjs-seeking"),this.trigger("seeked")},h.prototype.handleTechFirstPlay_=function(){this.options_.starttime&&(y.warn("Passing the `starttime` option to the player will be deprecated in 6.0"),this.currentTime(this.options_.starttime)),this.addClass("vjs-has-started"),this.trigger("firstplay")},h.prototype.handleTechPause_=function(){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.trigger("pause")},h.prototype.handleTechEnded_=function(){this.addClass("vjs-ended"),this.options_.loop?(this.currentTime(0),this.play()):this.paused()||this.pause(),this.trigger("ended")},h.prototype.handleTechDurationChange_=function(){this.duration(this.techGet_("duration"))},h.prototype.handleTechClick_=function(t){nt(t)&&this.controls_&&(this.paused()?Me(this.play()):this.pause())},h.prototype.handleTechDoubleClick_=function(e){this.controls_&&(Array.prototype.some.call(this.$$(".vjs-control-bar, .vjs-modal-dialog"),function(t){return t.contains(e.target)})||(this.isFullscreen()?this.exitFullscreen():this.requestFullscreen()))},h.prototype.handleTechTap_=function(){this.userActive(!this.userActive())},h.prototype.handleTechTouchStart_=function(){this.userWasActive=this.userActive()},h.prototype.handleTechTouchMove_=function(){this.userWasActive&&this.reportUserActivity()},h.prototype.handleTechTouchEnd_=function(t){t.preventDefault()},h.prototype.handleFullscreenChange_=function(){this.isFullscreen()?this.addClass("vjs-fullscreen"):this.removeClass("vjs-fullscreen")},h.prototype.handleStageClick_=function(){this.reportUserActivity()},h.prototype.handleTechFullscreenChange_=function(t,e){e&&this.isFullscreen(e.isFullscreen),this.trigger("fullscreenchange")},h.prototype.handleTechError_=function(){var t=this.tech_.error();this.error(t)},h.prototype.handleTechTextData_=function(){var t=null;1<arguments.length&&(t=arguments[1]),this.trigger("textdata",t)},h.prototype.getCache=function(){return this.cache_},h.prototype.techCall_=function(i,o){this.ready(function(){if(i in Fn)return t=this.middleware_,e=this.tech_,r=o,e[n=i](t.reduce(Bn(n),r));if(i in Rn)return Dn(this.middleware_,this.tech_,i,o);var t,e,n,r;try{this.tech_&&this.tech_[i](o)}catch(t){throw y(t),t}},!0)},h.prototype.techGet_=function(e){if(this.tech_&&this.tech_.isReady_){if(e in Ln)return t=this.middleware_,n=this.tech_,r=e,t.reduceRight(Bn(r),n[r]());if(e in Rn)return Dn(this.middleware_,this.tech_,e);var t,n,r;try{return this.tech_[e]()}catch(t){if(void 0===this.tech_[e])throw y("Video.js: "+e+" method not defined for "+this.techName_+" playback technology.",t),t;if("TypeError"===t.name)throw y("Video.js: "+e+" unavailable on "+this.techName_+" playback technology element.",t),this.tech_.isReady_=!1,t;throw y(t),t}}},h.prototype.play=function(){var e=this,t=this.options_.Promise||d.Promise;return t?new t(function(t){e.play_(t)}):this.play_()},h.prototype.play_=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:Me;if(this.playOnLoadstart_&&this.off("loadstart",this.playOnLoadstart_),this.isReady_){if(!this.changingSrc_&&(this.src()||this.currentSrc()))return void e(this.techGet_("play"));this.playOnLoadstart_=function(){t.playOnLoadstart_=null,e(t.play())},this.one("loadstart",this.playOnLoadstart_)}else{if(this.playWaitingForReady_)return;this.playWaitingForReady_=!0,this.ready(function(){t.playWaitingForReady_=!1,e(t.play())})}},h.prototype.pause=function(){this.techCall_("pause")},h.prototype.paused=function(){return!1!==this.techGet_("paused")},h.prototype.played=function(){return this.techGet_("played")||be(0,0)},h.prototype.scrubbing=function(t){if("undefined"==typeof t)return this.scrubbing_;this.scrubbing_=!!t,t?this.addClass("vjs-scrubbing"):this.removeClass("vjs-scrubbing")},h.prototype.currentTime=function(t){return"undefined"!=typeof t?(t<0&&(t=0),void this.techCall_("setCurrentTime",t)):(this.cache_.currentTime=this.techGet_("currentTime")||0,this.cache_.currentTime)},h.prototype.duration=function(t){if(void 0===t)return void 0!==this.cache_.duration?this.cache_.duration:NaN;(t=parseFloat(t))<0&&(t=1/0),t!==this.cache_.duration&&((this.cache_.duration=t)===1/0?this.addClass("vjs-live"):this.removeClass("vjs-live"),this.trigger("durationchange"))},h.prototype.remainingTime=function(){return this.duration()-this.currentTime()},h.prototype.remainingTimeDisplay=function(){return Math.floor(this.duration())-Math.floor(this.currentTime())},h.prototype.buffered=function(){var t=this.techGet_("buffered");return t&&t.length||(t=be(0,0)),t},h.prototype.bufferedPercent=function(){return Te(this.buffered(),this.duration())},h.prototype.bufferedEnd=function(){var t=this.buffered(),e=this.duration(),n=t.end(t.length-1);return e<n&&(n=e),n},h.prototype.volume=function(t){var e=void 0;return void 0!==t?(e=Math.max(0,Math.min(1,parseFloat(t))),this.cache_.volume=e,this.techCall_("setVolume",e),void(0<e&&this.lastVolume_(e))):(e=parseFloat(this.techGet_("volume")),isNaN(e)?1:e)},h.prototype.muted=function(t){if(void 0===t)return this.techGet_("muted")||!1;this.techCall_("setMuted",t)},h.prototype.defaultMuted=function(t){return void 0!==t?this.techCall_("setDefaultMuted",t):this.techGet_("defaultMuted")||!1},h.prototype.lastVolume_=function(t){if(void 0===t||0===t)return this.cache_.lastVolume;this.cache_.lastVolume=t},h.prototype.supportsFullScreen=function(){return this.techGet_("supportsFullScreen")||!1},h.prototype.isFullscreen=function(t){if(void 0===t)return!!this.isFullscreen_;this.isFullscreen_=!!t},h.prototype.requestFullscreen=function(){var n=Ce;this.isFullscreen(!0),n.requestFullscreen?(mt(f,n.fullscreenchange,Pt(this,function t(e){this.isFullscreen(f[n.fullscreenElement]),!1===this.isFullscreen()&&_t(f,n.fullscreenchange,t),this.trigger("fullscreenchange")})),this.el_[n.requestFullscreen]()):this.tech_.supportsFullScreen()?this.techCall_("enterFullScreen"):(this.enterFullWindow(),this.trigger("fullscreenchange"))},h.prototype.exitFullscreen=function(){var t=Ce;this.isFullscreen(!1),t.requestFullscreen?f[t.exitFullscreen]():this.tech_.supportsFullScreen()?this.techCall_("exitFullScreen"):(this.exitFullWindow(),this.trigger("fullscreenchange"))},h.prototype.enterFullWindow=function(){this.isFullWindow=!0,this.docOrigOverflow=f.documentElement.style.overflow,mt(f,"keydown",Pt(this,this.fullWindowOnEscKey)),f.documentElement.style.overflow="hidden",R(f.body,"vjs-full-window"),this.trigger("enterFullWindow")},h.prototype.fullWindowOnEscKey=function(t){27===t.keyCode&&(!0===this.isFullscreen()?this.exitFullscreen():this.exitFullWindow())},h.prototype.exitFullWindow=function(){this.isFullWindow=!1,_t(f,"keydown",this.fullWindowOnEscKey),f.documentElement.style.overflow=this.docOrigOverflow,B(f.body,"vjs-full-window"),this.trigger("exitFullWindow")},h.prototype.canPlayType=function(t){for(var e=void 0,n=0,r=this.options_.techOrder;n<r.length;n++){var i=r[n],o=An.getTech(i);if(o||(o=Xt.getComponent(i)),o){if(o.isSupported()&&(e=o.canPlayType(t)))return e}else y.error('The "'+i+'" tech is undefined. Skipped browser support check for that tech.')}return""},h.prototype.selectSource=function(t){var n,r=this,e=this.options_.techOrder.map(function(t){return[t,An.getTech(t)]}).filter(function(t){var e=t[0],n=t[1];return n?n.isSupported():(y.error('The "'+e+'" tech is undefined. Skipped browser support check for that tech.'),!1)}),i=function(t,n,r){var i=void 0;return t.some(function(e){return n.some(function(t){if(i=r(e,t))return!0})}),i},o=function(t,e){var n=t[0];if(t[1].canPlaySource(e,r.options_[n.toLowerCase()]))return{source:e,tech:n}};return(this.options_.sourceOrder?i(t,e,(n=o,function(t,e){return n(e,t)})):i(e,t,o))||!1},h.prototype.src=function(t){var i=this;if("undefined"==typeof t)return this.cache_.src||"";var o=function e(t){if(Array.isArray(t)){var n=[];t.forEach(function(t){t=e(t),Array.isArray(t)?n=n.concat(t):E(t)&&n.push(t)}),t=n}else t="string"==typeof t&&t.trim()?[zn({src:t})]:E(t)&&"string"==typeof t.src&&t.src&&t.src.trim()?[zn(t)]:[];return t}(t);o.length?(this.changingSrc_=!0,this.cache_.sources=o,this.updateSourceCaches_(o[0]),In(this,o[0],function(t,e){var n,r;if(i.middleware_=e,i.cache_.sources=o,i.updateSourceCaches_(t),i.src_(t))return 1<o.length?i.src(o.slice(1)):(i.changingSrc_=!1,i.setTimeout(function(){this.error({code:4,message:this.localize(this.options_.notSupportedMessage)})},0),void i.triggerReady());n=e,r=i.tech_,n.forEach(function(t){return t.setTech&&t.setTech(r)})})):this.setTimeout(function(){this.error({code:4,message:this.localize(this.options_.notSupportedMessage)})},0)},h.prototype.src_=function(t){var e,n,r=this,i=this.selectSource([t]);return!i||(e=i.tech,n=this.techName_,qt(e)!==qt(n)?(this.changingSrc_=!0,this.loadTech_(i.tech,i.source),this.tech_.ready(function(){r.changingSrc_=!1})):this.ready(function(){this.tech_.constructor.prototype.hasOwnProperty("setSource")?this.techCall_("setSource",t):this.techCall_("src",t.src),this.changingSrc_=!1},!0),!1)},h.prototype.load=function(){this.techCall_("load")},h.prototype.reset=function(){this.tech_&&this.tech_.clearTracks("text"),this.loadTech_(this.options_.techOrder[0],null),this.techCall_("reset")},h.prototype.currentSources=function(){var t=this.currentSource(),e=[];return 0!==Object.keys(t).length&&e.push(t),this.cache_.sources||e},h.prototype.currentSource=function(){return this.cache_.source||{}},h.prototype.currentSrc=function(){return this.currentSource()&&this.currentSource().src||""},h.prototype.currentType=function(){return this.currentSource()&&this.currentSource().type||""},h.prototype.preload=function(t){return void 0!==t?(this.techCall_("setPreload",t),void(this.options_.preload=t)):this.techGet_("preload")},h.prototype.autoplay=function(t){if(void 0===t)return this.options_.autoplay||!1;var e=void 0;"string"==typeof t&&/(any|play|muted)/.test(t)?(this.options_.autoplay=t,this.manualAutoplay_(t),e=!1):this.options_.autoplay=!!t,e=e||this.options_.autoplay,this.tech_&&this.techCall_("setAutoplay",e)},h.prototype.playsinline=function(t){return void 0!==t?(this.techCall_("setPlaysinline",t),this.options_.playsinline=t,this):this.techGet_("playsinline")},h.prototype.loop=function(t){return void 0!==t?(this.techCall_("setLoop",t),void(this.options_.loop=t)):this.techGet_("loop")},h.prototype.poster=function(t){if(void 0===t)return this.poster_;t||(t=""),t!==this.poster_&&(this.poster_=t,this.techCall_("setPoster",t),this.isPosterFromTech_=!1,this.trigger("posterchange"))},h.prototype.handleTechPosterChange_=function(){if((!this.poster_||this.options_.techCanOverridePoster)&&this.tech_&&this.tech_.poster){var t=this.tech_.poster()||"";t!==this.poster_&&(this.poster_=t,this.isPosterFromTech_=!0,this.trigger("posterchange"))}},h.prototype.controls=function(t){if(void 0===t)return!!this.controls_;t=!!t,this.controls_!==t&&(this.controls_=t,this.usingNativeControls()&&this.techCall_("setControls",t),this.controls_?(this.removeClass("vjs-controls-disabled"),this.addClass("vjs-controls-enabled"),this.trigger("controlsenabled"),this.usingNativeControls()||this.addTechControlsListeners_()):(this.removeClass("vjs-controls-enabled"),this.addClass("vjs-controls-disabled"),this.trigger("controlsdisabled"),this.usingNativeControls()||this.removeTechControlsListeners_()))},h.prototype.usingNativeControls=function(t){if(void 0===t)return!!this.usingNativeControls_;t=!!t,this.usingNativeControls_!==t&&(this.usingNativeControls_=t,this.usingNativeControls_?(this.addClass("vjs-using-native-controls"),this.trigger("usingnativecontrols")):(this.removeClass("vjs-using-native-controls"),this.trigger("usingcustomcontrols")))},h.prototype.error=function(t){return void 0===t?this.error_||null:null===t?(this.error_=t,this.removeClass("vjs-error"),void(this.errorDisplay&&this.errorDisplay.close())):(this.error_=new je(t),this.addClass("vjs-error"),y.error("(CODE:"+this.error_.code+" "+je.errorTypes[this.error_.code]+")",this.error_.message,this.error_),void this.trigger("error"))},h.prototype.reportUserActivity=function(t){this.userActivity_=!0},h.prototype.userActive=function(t){if(void 0===t)return this.userActive_;if((t=!!t)!==this.userActive_){if(this.userActive_=t,this.userActive_)return this.userActivity_=!0,this.removeClass("vjs-user-inactive"),this.addClass("vjs-user-active"),void this.trigger("useractive");this.tech_&&this.tech_.one("mousemove",function(t){t.stopPropagation(),t.preventDefault()}),this.userActivity_=!1,this.removeClass("vjs-user-active"),this.addClass("vjs-user-inactive"),this.trigger("userinactive")}},h.prototype.listenForUserActivity_=function(){var e=void 0,n=void 0,r=void 0,i=Pt(this,this.reportUserActivity);this.on("mousedown",function(){i(),this.clearInterval(e),e=this.setInterval(i,250)}),this.on("mousemove",function(t){t.screenX===n&&t.screenY===r||(n=t.screenX,r=t.screenY,i())}),this.on("mouseup",function(t){i(),this.clearInterval(e)}),this.on("keydown",i),this.on("keyup",i);var o=void 0;this.setInterval(function(){if(this.userActivity_){this.userActivity_=!1,this.userActive(!0),this.clearTimeout(o);var t=this.options_.inactivityTimeout;t<=0||(o=this.setTimeout(function(){this.userActivity_||this.userActive(!1)},t))}},250)},h.prototype.playbackRate=function(t){if(void 0===t)return this.tech_&&this.tech_.featuresPlaybackRate?this.cache_.lastPlaybackRate||this.techGet_("playbackRate"):1;this.techCall_("setPlaybackRate",t)},h.prototype.defaultPlaybackRate=function(t){return void 0!==t?this.techCall_("setDefaultPlaybackRate",t):this.tech_&&this.tech_.featuresPlaybackRate?this.techGet_("defaultPlaybackRate"):1},h.prototype.isAudio=function(t){if(void 0===t)return!!this.isAudio_;this.isAudio_=!!t},h.prototype.addTextTrack=function(t,e,n){if(this.tech_)return this.tech_.addTextTrack(t,e,n)},h.prototype.addRemoteTextTrack=function(t,e){if(this.tech_)return this.tech_.addRemoteTextTrack(t,e)},h.prototype.removeRemoteTextTrack=function(){var t=(0<arguments.length&&void 0!==arguments[0]?arguments[0]:{}).track,e=void 0===t?arguments[0]:t;if(this.tech_)return this.tech_.removeRemoteTextTrack(e)},h.prototype.getVideoPlaybackQuality=function(){return this.techGet_("getVideoPlaybackQuality")},h.prototype.videoWidth=function(){return this.tech_&&this.tech_.videoWidth&&this.tech_.videoWidth()||0},h.prototype.videoHeight=function(){return this.tech_&&this.tech_.videoHeight&&this.tech_.videoHeight()||0},h.prototype.language=function(t){if(void 0===t)return this.language_;this.language_=String(t).toLowerCase()},h.prototype.languages=function(){return Kt(h.prototype.options_.languages,this.languages_)},h.prototype.toJSON=function(){var t=Kt(this.options_),e=t.tracks;t.tracks=[];for(var n=0;n<e.length;n++){var r=e[n];(r=Kt(r)).player=void 0,t.tracks[n]=r}return t},h.prototype.createModal=function(t,e){var n=this;(e=e||{}).content=t||"";var r=new Fe(this,e);return this.addChild(r),r.on("dispose",function(){n.removeChild(r)}),r.open(),r},h.getTagSettings=function(t){var e={sources:[],tracks:[]},n=z(t),r=n["data-setup"];if(F(t,"vjs-fluid")&&(n.fluid=!0),null!==r){var i=Ae(r||"{}"),o=i[0],s=i[1];o&&y.error(o),k(n,s)}if(k(e,n),t.hasChildNodes())for(var a=t.childNodes,l=0,c=a.length;l<c;l++){var u=a[l],h=u.nodeName.toLowerCase();"source"===h?e.sources.push(z(u)):"track"===h&&e.tracks.push(z(u))}return e},h.prototype.flexNotSupported_=function(){var t=f.createElement("i");return!("flexBasis"in t.style||"webkitFlexBasis"in t.style||"mozFlexBasis"in t.style||"msFlexBasis"in t.style||"msFlexOrder"in t.style)},h}(Xt);jn.names.forEach(function(t){var e=jn[t];Si.prototype[e.getterName]=function(){return this.tech_?this.tech_[e.getterName]():(this[e.privateName]=this[e.privateName]||new e.ListClass,this[e.privateName])}}),Si.players={};var wi=d.navigator;Si.prototype.options_={techOrder:An.defaultTechOrder_,html5:{},flash:{},inactivityTimeout:2e3,playbackRates:[],children:["mediaLoader","posterImage","textTrackDisplay","loadingSpinner","bigPlayButton","controlBar","errorDisplay","textTrackSettings","resizeManager"],language:wi&&(wi.languages&&wi.languages[0]||wi.userLanguage||wi.language)||"en",languages:{},notSupportedMessage:"No compatible source was found for this media."},["ended","seeking","seekable","networkState","readyState"].forEach(function(t){Si.prototype[t]=function(){return this.techGet_(t)}}),ki.forEach(function(t){Si.prototype["handleTech"+qt(t)+"_"]=function(){return this.trigger(t)}}),Xt.registerComponent("Player",Si);var xi="plugin",ji="activePlugins_",Pi={},Ai=function(t){return Pi.hasOwnProperty(t)},Oi=function(t){return Ai(t)?Pi[t]:void 0},Mi=function(t,e){t[ji]=t[ji]||{},t[ji][e]=!0},Ni=function(t,e,n){var r=(n?"before":"")+"pluginsetup";t.trigger(r,e),t.trigger(r+":"+e.name,e)},Ii=function(i,o){return o.prototype.name=i,function(){Ni(this,{name:i,plugin:o,instance:null},!0);for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];var r=new(Function.prototype.bind.apply(o,[null].concat([this].concat(e))));return this[i]=function(){return r},Ni(this,r.getEventHash()),r}},Di=function(){function o(t){if(g(this,o),this.constructor===o)throw new Error("Plugin must be sub-classed; not directly instantiated.");this.player=t,zt(this),delete this.trigger,Ut(this,this.constructor.defaultState),Mi(t,this.name),this.dispose=Pt(this,this.dispose),t.on("dispose",this.dispose)}return o.prototype.version=function(){return this.constructor.VERSION},o.prototype.getEventHash=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};return t.name=this.name,t.plugin=this.constructor,t.instance=this,t},o.prototype.trigger=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return bt(this.eventBusEl_,t,this.getEventHash(e))},o.prototype.handleStateChanged=function(t){},o.prototype.dispose=function(){var t=this.name,e=this.player;this.trigger("dispose"),this.off(),e.off("dispose",this.dispose),e[ji][t]=!1,this.player=this.state=null,e[t]=Ii(t,Pi[t])},o.isBasic=function(t){var e="string"==typeof t?Oi(t):t;return"function"==typeof e&&!o.prototype.isPrototypeOf(e.prototype)},o.registerPlugin=function(t,e){if("string"!=typeof t)throw new Error('Illegal plugin name, "'+t+'", must be a string, was '+("undefined"==typeof t?"undefined":u(t))+".");if(Ai(t))y.warn('A plugin named "'+t+'" already exists. You may want to avoid re-registering plugins!');else if(Si.prototype.hasOwnProperty(t))throw new Error('Illegal plugin name, "'+t+'", cannot share a name with an existing player method!');if("function"!=typeof e)throw new Error('Illegal plugin for "'+t+'", must be a function, was '+("undefined"==typeof e?"undefined":u(e))+".");var n,r,i;return Pi[t]=e,t!==xi&&(o.isBasic(e)?Si.prototype[t]=(n=t,r=e,i=function(){Ni(this,{name:n,plugin:r,instance:null},!0);var t=r.apply(this,arguments);return Mi(this,n),Ni(this,{name:n,plugin:r,instance:t}),t},Object.keys(r).forEach(function(t){i[t]=r[t]}),i):Si.prototype[t]=Ii(t,e)),e},o.deregisterPlugin=function(t){if(t===xi)throw new Error("Cannot de-register base plugin.");Ai(t)&&(delete Pi[t],delete Si.prototype[t])},o.getPlugins=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:Object.keys(Pi),n=void 0;return t.forEach(function(t){var e=Oi(t);e&&((n=n||{})[t]=e)}),n},o.getPluginVersion=function(t){var e=Oi(t);return e&&e.VERSION||""},o}();Di.getPlugin=Oi,Di.BASE_PLUGIN_NAME=xi,Di.registerPlugin(xi,Di),Si.prototype.usingPlugin=function(t){return!!this[ji]&&!0===this[ji][t]},Si.prototype.hasPlugin=function(t){return!!Ai(t)};var Li=function(t){return 0===t.indexOf("#")?t.slice(1):t};function Fi(t,n,e){var r=Fi.getPlayer(t);if(r)return n&&y.warn('Player "'+t+'" is already initialised. Options will not be applied.'),e&&r.ready(e),r;var i="string"==typeof t?rt("#"+Li(t)):t;if(!O(i))throw new TypeError("The element or ID supplied is not valid. (videojs)");f.body.contains(i)||y.warn("The element supplied is not included in the DOM"),n=n||{},Fi.hooks("beforesetup").forEach(function(t){var e=t(i,Kt(n));E(e)&&!Array.isArray(e)?n=Kt(n,e):y.error("please return an object in beforesetup hooks")});var o=Xt.getComponent("Player");return r=new o(i,n,e),Fi.hooks("setup").forEach(function(t){return t(r)}),r}if(Fi.hooks_={},Fi.hooks=function(t,e){return Fi.hooks_[t]=Fi.hooks_[t]||[],e&&(Fi.hooks_[t]=Fi.hooks_[t].concat(e)),Fi.hooks_[t]},Fi.hook=function(t,e){Fi.hooks(t,e)},Fi.hookOnce=function(n,t){Fi.hooks(n,[].concat(t).map(function(e){return function t(){return Fi.removeHook(n,t),e.apply(void 0,arguments)}}))},Fi.removeHook=function(t,e){var n=Fi.hooks(t).indexOf(e);return!(n<=-1)&&(Fi.hooks_[t]=Fi.hooks_[t].slice(),Fi.hooks_[t].splice(n,1),!0)},!0!==d.VIDEOJS_NO_DYNAMIC_STYLE&&A()){var Ri=rt(".vjs-styles-defaults");if(!Ri){Ri=xt("vjs-styles-defaults");var Bi=rt("head");Bi&&Bi.insertBefore(Ri,Bi.firstChild),jt(Ri,"\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ")}}return wt(1,Fi),Fi.VERSION=p,Fi.options=Si.prototype.options_,Fi.getPlayers=function(){return Si.players},Fi.getPlayer=function(t){var e=Si.players,n=void 0;if("string"==typeof t){var r=Li(t),i=e[r];if(i)return i;n=rt("#"+r)}else n=t;if(O(n)){var o=n,s=o.player,a=o.playerId;if(s||e[a])return s||e[a]}},Fi.getAllPlayers=function(){return Object.keys(Si.players).map(function(t){return Si.players[t]}).filter(Boolean)},Fi.players=Si.players,Fi.getComponent=Xt.getComponent,Fi.registerComponent=function(t,e){An.isTech(e)&&y.warn("The "+t+" tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)"),Xt.registerComponent.call(Xt,t,e)},Fi.getTech=An.getTech,Fi.registerTech=An.registerTech,Fi.use=function(t,e){On[t]=On[t]||[],On[t].push(e)},Object.defineProperty(Fi,"middleware",{value:{},writeable:!1,enumerable:!0}),Object.defineProperty(Fi.middleware,"TERMINATOR",{value:Nn,writeable:!1,enumerable:!0}),Fi.browser=ge,Fi.TOUCH_ENABLED=ve,Fi.extend=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=function(){t.apply(this,arguments)},r={};for(var i in"object"===("undefined"==typeof e?"undefined":u(e))?(e.constructor!==Object.prototype.constructor&&(n=e.constructor),r=e):"function"==typeof e&&(n=e),function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+("undefined"==typeof e?"undefined":u(e)));t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(t.super_=e)}(n,t),r)r.hasOwnProperty(i)&&(n.prototype[i]=r[i]);return n},Fi.mergeOptions=Kt,Fi.bind=Pt,Fi.registerPlugin=Di.registerPlugin,Fi.deregisterPlugin=Di.deregisterPlugin,Fi.plugin=function(t,e){return y.warn("videojs.plugin() is deprecated; use videojs.registerPlugin() instead"),Di.registerPlugin(t,e)},Fi.getPlugins=Di.getPlugins,Fi.getPlugin=Di.getPlugin,Fi.getPluginVersion=Di.getPluginVersion,Fi.addLanguage=function(t,e){var n;return t=(""+t).toLowerCase(),Fi.options.languages=Kt(Fi.options.languages,((n={})[t]=e,n)),Fi.options.languages[t]},Fi.log=y,Fi.createTimeRange=Fi.createTimeRanges=be,Fi.formatTime=ir,Fi.setFormatTime=function(t){rr=t},Fi.resetFormatTime=function(){rr=nr},Fi.parseUrl=Qe,Fi.isCrossOrigin=en,Fi.EventTarget=Mt,Fi.on=mt,Fi.one=Tt,Fi.off=_t,Fi.trigger=bt,Fi.xhr=fn,Fi.TextTrack=bn,Fi.AudioTrack=Tn,Fi.VideoTrack=Cn,["isEl","isTextNode","createEl","hasClass","addClass","removeClass","toggleClass","setAttributes","getAttributes","emptyEl","appendContent","insertContent"].forEach(function(t){Fi[t]=function(){return y.warn("videojs."+t+"() is deprecated; use videojs.dom."+t+"() instead"),ot[t].apply(null,arguments)}}),Fi.computedStyle=w,Fi.dom=ot,Fi.url=nn,Fi}); \ No newline at end of file
diff --git a/assets/netcut/lib/videojs/alt/video.novtt.js b/assets/netcut/lib/videojs/alt/video.novtt.js
new file mode 100644
index 0000000..fd2724d
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video.novtt.js
@@ -0,0 +1,54101 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global.videojs = factory());
+}(this, (function () {
+ var version = "7.2.4";
+
+ var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+ function createCommonjsModule(fn, module) {
+ return module = { exports: {} }, fn(module, module.exports), module.exports;
+ }
+
+ var win;
+
+ if (typeof window !== "undefined") {
+ win = window;
+ } else if (typeof commonjsGlobal !== "undefined") {
+ win = commonjsGlobal;
+ } else if (typeof self !== "undefined") {
+ win = self;
+ } else {
+ win = {};
+ }
+
+ var window_1 = win;
+
+ var empty = {};
+
+ var empty$1 = /*#__PURE__*/Object.freeze({
+ default: empty
+ });
+
+ var minDoc = ( empty$1 && empty ) || empty$1;
+
+ var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
+
+ var doccy;
+
+ if (typeof document !== 'undefined') {
+ doccy = document;
+ } else {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
+
+ if (!doccy) {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
+ }
+ }
+
+ var document_1 = doccy;
+
+ /**
+ * @file log.js
+ * @module log
+ */
+
+ var log = void 0;
+
+ // This is the private tracking variable for logging level.
+ var level = 'info';
+
+ // This is the private tracking variable for the logging history.
+ var history = [];
+
+ /**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+ var logByType = function logByType(type, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp('^(' + lvl + ')$');
+
+ if (type !== 'log') {
+
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ }
+
+ // Add a clone of the args at this point to history.
+ if (history) {
+ history.push([].concat(args));
+ }
+
+ // Add console prefix after adding to history.
+ args.unshift('VIDEOJS:');
+
+ // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+ if (!window_1.console) {
+ return;
+ }
+
+ // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+ var fn = window_1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window_1.console.info || window_1.console.log;
+ }
+
+ // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window_1.console, args);
+ };
+
+ /**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * @class
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+ log = function log() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', args);
+ };
+
+ /**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+ log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+ };
+
+ /**
+ * Get or set the current logging level. If a string matching a key from
+ * {@link log.levels} is provided, acts as a setter. Regardless of argument,
+ * returns the current logging level.
+ *
+ * @param {string} [lvl]
+ * Pass to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+ log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error('"' + lvl + '" in not a valid log level');
+ }
+ level = lvl;
+ }
+ return level;
+ };
+
+ /**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+ log.history = function () {
+ return history ? [].concat(history) : [];
+ };
+
+ /**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+ log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+ };
+
+ /**
+ * Disable history tracking if it is currently enabled.
+ */
+ log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+ };
+
+ /**
+ * Enable history tracking if it is currently disabled.
+ */
+ log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+ };
+
+ /**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+ log.error = function () {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', args);
+ };
+
+ /**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+ log.warn = function () {
+ for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', args);
+ };
+
+ /**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+ log.debug = function () {
+ for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', args);
+ };
+
+ var log$1 = log;
+
+ function clean(s) {
+ return s.replace(/\n\r?\s*/g, '');
+ }
+
+ var tsml = function tsml(sa) {
+ var s = '',
+ i = 0;
+
+ for (; i < arguments.length; i++) {
+ s += clean(sa[i]) + (arguments[i + 1] || '');
+ }return s;
+ };
+
+ var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+ };
+
+ var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var inherits = function (subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn = function (self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+ };
+
+ var taggedTemplateLiteralLoose = function (strings, raw) {
+ strings.raw = raw;
+ return strings;
+ };
+
+ /**
+ * @file obj.js
+ * @module obj
+ */
+
+ /**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+ /**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+ var toString = Object.prototype.toString;
+
+ /**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+ var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+ };
+
+ /**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+ function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+ }
+
+ /**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+ function reduce(object, fn) {
+ var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+ }
+
+ /**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+ function assign(target) {
+ for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+
+ return target;
+ }
+
+ /**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isObject(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';
+ }
+
+ /**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+ }
+
+ /**
+ * @file computed-style.js
+ * @module computed-style
+ */
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to
+ * make sure that the player doesn't break in these cases.
+ *
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ *
+ * @static
+ * @const
+ */
+ function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var cs = window_1.getComputedStyle(el);
+
+ return cs ? cs[prop] : '';
+ }
+
+ return '';
+ }
+
+ var _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);
+
+ /**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * - True if the string is non-blank
+ * - False otherwise
+ *
+ */
+ function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+ }
+
+ /**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ *
+ */
+ function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+ }
+
+ /**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+ function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+ }
+
+ /**
+ * Whether the current DOM interface appears to be real.
+ *
+ * @return {Boolean}
+ */
+ function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document_1 === window_1.document;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The thing to check
+ *
+ * @return {boolean}
+ * - True if it is a DOM element
+ * - False otherwise
+ */
+ function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+ }
+
+ /**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ *
+ */
+ function isInFrame() {
+
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window_1.parent !== window_1.self;
+ } catch (x) {
+ return true;
+ }
+ }
+
+ /**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+ function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document_1[method](null);
+ }
+ if (isNonBlankString(context)) {
+ context = document_1.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document_1;
+
+ return ctx[method] && ctx[method](selector);
+ };
+ }
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {String|Element|TextNode|Array|Function} [content]
+ * Contents for the element (see: {@link dom:normalizeContent})
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ function createEl() {
+ var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var content = arguments[3];
+
+ var el = document_1.createElement(tagName);
+
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName];
+
+ // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log$1.warn(tsml(_templateObject, propName, val));
+ el.setAttribute(propName, val);
+
+ // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+ }
+
+ /**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+ function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+ return el;
+ }
+
+ /**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+ function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+ }
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * - True if the element had the class
+ * - False otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+ function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+ return classRegExp(classToCheck).test(element.className);
+ }
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The dom element with the added class name.
+ */
+ function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd);
+
+ // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+ }
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The dom element with class name removed.
+ */
+ function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+ }
+
+ /**
+ * The callback definition for toggleElClass.
+ *
+ * @callback Dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * - If true the `classToToggle` will get added to `element`.
+ * - If false the `classToToggle` will get removed from `element`.
+ * - If undefined this callback will be ignored
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled
+ *
+ * @param {boolean|PredicateCallback} [predicate]
+ * See the return value for {@link Dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+ function toggleClass(element, classToToggle, predicate) {
+
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ }
+
+ // If the necessary class operation matches the current state of the
+ // element, no action is required.
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+ }
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+ function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+ }
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element.
+ */
+ function getAttributes(tag) {
+ var obj = {};
+
+ // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value;
+
+ // check for known booleans
+ // the matching element property will return a value for typeof
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+ }
+
+ /**
+ * Get the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to get the value of
+ *
+ * @return {string}
+ * value of the attribute
+ */
+ function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+ }
+
+ /**
+ * Set the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to set
+ *
+ * @param {string} value
+ * Value to set the attribute to
+ */
+ function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+ }
+
+ /**
+ * Remove an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to remove
+ */
+ function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+ }
+
+ /**
+ * Attempt to block the ability to select text while dragging controls
+ */
+ function blockTextSelection() {
+ document_1.body.focus();
+ document_1.onselectstart = function () {
+ return false;
+ };
+ }
+
+ /**
+ * Turn off text selection blocking
+ */
+ function unblockTextSelection() {
+ document_1.onselectstart = function () {
+ return true;
+ };
+ }
+
+ /**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain
+ */
+ function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+ }
+
+ /**
+ * The postion of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left
+ *
+ * @property {number} top
+ * Pixels on top
+ */
+
+ /**
+ * Offset Left.
+ * getBoundingClientRect technique from
+ * John Resig
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+ function findPosition(el) {
+ var box = void 0;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document_1.documentElement;
+ var body = document_1.body;
+
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window_1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window_1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop;
+
+ // Android sometimes returns slightly off decimal values, so need to round
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+ }
+
+ /**
+ * x and y coordinates for a dom element or mouse pointer
+ *
+ * @typedef {Object} Dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+ /**
+ * Get pointer position in element
+ * Returns an object with x and y coordinates.
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {Dom~Coordinates}
+ * A Coordinates object corresponding to the mouse position.
+ *
+ */
+ function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+
+ return position;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * - True if it is a text node
+ * - False otherwise
+ */
+ function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+ }
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+ function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+ return el;
+ }
+
+ /**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but protects
+ * from falling into the trap of simply writing to `innerHTML`, which is
+ * an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * - String: Normalized into a text node.
+ * - Element/TextNode: Passed through.
+ * - Array: A one-dimensional array of strings, elements, nodes, or functions
+ * (which return single strings, elements, or nodes).
+ * - Function: If the sole argument, is expected to produce a string, element,
+ * node, or array as defined above.
+ *
+ * @return {Array}
+ * All of the content that was passed in normalized.
+ */
+ function normalizeContent(content) {
+
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ }
+
+ // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document_1.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+ }
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+ function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+ }
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ *
+ */
+ function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+ }
+
+ /**
+ * Check if event was a single left click
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {boolean}
+ * - True if a left click
+ * - False if not a left click
+ */
+ function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+ var $ = createQuerier('querySelector');
+
+ /**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none were found.
+ *
+ */
+ var $$ = createQuerier('querySelectorAll');
+
+ var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+ });
+
+ /**
+ * @file guid.js
+ * @module guid
+ */
+
+ /**
+ * Unique ID for an element or function
+ * @type {Number}
+ */
+ var _guid = 1;
+
+ /**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+ function newGUID() {
+ return _guid++;
+ }
+
+ /**
+ * @file dom-data.js
+ * @module dom-data
+ */
+
+ /**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+ var elData = {};
+
+ /*
+ * Unique attribute name to store an element's guid in
+ *
+ * @type {String}
+ * @constant
+ * @private
+ */
+ var elIdAttr = 'vdata' + new Date().getTime();
+
+ /**
+ * Returns the cache object where data for an element is stored
+ *
+ * @param {Element} el
+ * Element to store data for.
+ *
+ * @return {Object}
+ * The cache object for that el that was passed in.
+ */
+ function getData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ id = el[elIdAttr] = newGUID();
+ }
+
+ if (!elData[id]) {
+ elData[id] = {};
+ }
+
+ return elData[id];
+ }
+
+ /**
+ * Returns whether or not an element has cached data
+ *
+ * @param {Element} el
+ * Check if this element has cached data.
+ *
+ * @return {boolean}
+ * - True if the DOM element has cached data.
+ * - False otherwise.
+ */
+ function hasData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return false;
+ }
+
+ return !!Object.getOwnPropertyNames(elData[id]).length;
+ }
+
+ /**
+ * Delete data for the element from the cache and the guid attr from getElementById
+ *
+ * @param {Element} el
+ * Remove cached data for this element.
+ */
+ function removeData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return;
+ }
+
+ // Remove all stored data
+ delete elData[id];
+
+ // Remove the elIdAttr property from the DOM node
+ try {
+ delete el[elIdAttr];
+ } catch (e) {
+ if (el.removeAttribute) {
+ el.removeAttribute(elIdAttr);
+ } else {
+ // IE doesn't appear to support removeAttribute on the document element
+ el[elIdAttr] = null;
+ }
+ }
+ }
+
+ /**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @module events
+ */
+
+ /**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+ function _cleanUpEvents(elem, type) {
+ var data = getData(elem);
+
+ // Remove the events of a particular type if there are none left
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type];
+ // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+
+ // Remove the meta-handler from the element
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ }
+
+ // Remove the events object if there are no types left
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ }
+
+ // Finally remove the element data if there is no data left
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ removeData(elem);
+ }
+ }
+
+ /**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+ function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+ }
+
+ /**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+ function fixEvent(event) {
+
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ }
+
+ // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window_1.event;
+
+ event = {};
+ // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ }
+
+ // The event occurred on this element
+ if (!event.target) {
+ event.target = event.srcElement || document_1;
+ }
+
+ // Handle which other element the event is related to
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ }
+
+ // Stop the default browser action
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false;
+
+ // Stop the event from bubbling
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse;
+
+ // Stop the event from bubbling and executing other handlers
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse;
+
+ // Handle mouse position
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document_1.documentElement;
+ var body = document_1.body;
+
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ }
+
+ // Handle key presses
+ event.which = event.charCode || event.keyCode;
+
+ // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+ if (event.button !== null && event.button !== undefined) {
+
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ }
+
+ // Returns fixed-up instance
+ return event;
+ }
+
+ /**
+ * Whether passive event listeners are supported
+ */
+ var _supportsPassive = false;
+
+ (function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+
+ window_1.addEventListener('test', null, opts);
+ window_1.removeEventListener('test', null, opts);
+ } catch (e) {
+ // disregard
+ }
+ })();
+
+ /**
+ * Touch events Chrome expects to be passive
+ */
+ var passiveEvents = ['touchstart', 'touchmove'];
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+ function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ var data = getData(elem);
+
+ // We need a place to store all our handler data
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log$1.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = { passive: true };
+ }
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+ }
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+ function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!hasData(elem)) {
+ return;
+ }
+
+ var data = getData(elem);
+
+ // If no events exist, nothing to unbind
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ }
+
+ // Utility function
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+ _cleanUpEvents(el, t);
+ };
+
+ // Are we removing all bound events?
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+ return;
+ }
+
+ var handlers = data.handlers[type];
+
+ // If no handlers exist, nothing to unbind
+ if (!handlers) {
+ return;
+ }
+
+ // If no listener was provided, remove all listeners for type
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ }
+
+ // We're only removing a single handler
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+ }
+
+ /**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * - Returns the opposite of `defaultPrevented` if default was prevented
+ * - Otherwise returns undefined
+ */
+ function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = hasData(elem) ? getData(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument;
+ // type = event.type || event,
+ // handler;
+
+ // If an event name was passed as a string, creates an event out of it
+ if (typeof event === 'string') {
+ event = { type: event, target: elem };
+ } else if (!event.target) {
+ event.target = elem;
+ }
+
+ // Normalizes the event properties.
+ event = fixEvent(event);
+
+ // If the passed element has a dispatcher, executes the established handlers.
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ }
+
+ // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash);
+
+ // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented) {
+ var targetData = getData(event.target);
+
+ // Checks if the target has a default action for this event.
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true;
+ // Executes the default action.
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ }
+ // Re-enables event dispatching.
+ targetData.disabled = false;
+ }
+ }
+
+ // Inform the triggerer if the default was prevented by returning false
+ return !event.defaultPrevented;
+ }
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event Listener function
+ */
+ function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ };
+
+ // copy the guid to the new function so it can removed using the original function's ID
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+ }
+
+ var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one
+ });
+
+ /**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+
+ var _windowLoaded = false;
+ var videojs = void 0;
+
+ /**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+ var autoSetup = function autoSetup() {
+
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document_1.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document_1.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document_1.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs);
+
+ // Check if any media elements exist
+ if (mediaEls && mediaEls.length > 0) {
+
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i];
+
+ // Check if element exists, has getAttribute func.
+ if (mediaEl && mediaEl.getAttribute) {
+
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup');
+
+ // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ }
+
+ // If getAttribute isn't defined, we need to wait for the DOM.
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ }
+
+ // No videos were found, so keep looping unless page is finished loading.
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+ };
+
+ /**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+ function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window_1.setTimeout(autoSetup, wait);
+ }
+
+ if (isReal() && document_1.readyState === 'complete') {
+ _windowLoaded = true;
+ } else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * @listens load
+ */
+ one(window_1, 'load', function () {
+ _windowLoaded = true;
+ });
+ }
+
+ /**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+
+ /**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ var createStyleElement = function createStyleElement(className) {
+ var style = document_1.createElement('style');
+
+ style.className = className;
+
+ return style;
+ };
+
+ /**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+ var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+ };
+
+ /**
+ * @file fn.js
+ * @module fn
+ */
+
+ /**
+ * Bind (a.k.a proxy or Context). A simple method for changing the context of a function
+ * It also stores a unique id on the function so it can be easily removed from events.
+ *
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+ var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ // Create the new function that changes the context
+ var bound = function bound() {
+ return fn.apply(context, arguments);
+ };
+
+ // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+
+ return bound;
+ };
+
+ /**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {Number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+ var throttle = function throttle(fn, wait) {
+ var last = Date.now();
+
+ var throttled = function throttled() {
+ var now = Date.now();
+
+ if (now - last >= wait) {
+ fn.apply(undefined, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+ };
+
+ /**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+ var debounce = function debounce(func, wait, immediate) {
+ var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window_1;
+
+ var timeout = void 0;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+
+ /* eslint-disable consistent-this */
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+ debounced.cancel = cancel;
+
+ return debounced;
+ };
+
+ /**
+ * @file src/js/event-target.js
+ */
+
+ /**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+ var EventTarget = function EventTarget() {};
+
+ /**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+ /**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+ /**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+ EventTarget.prototype.allowedEvents_ = {};
+
+ /**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+ EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ on(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+ EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+
+ /**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+ EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+ };
+
+ /**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+ EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+
+ /**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+ EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener alialing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ one(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+ EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event;
+
+ if (typeof event === 'string') {
+ event = { type: type };
+ }
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+ };
+
+ /**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+ EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+
+ var EVENT_MAP = void 0;
+
+ EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+
+ map.delete(type);
+ window_1.clearTimeout(oldTimeout);
+
+ var timeout = window_1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP.delete(_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+
+ map.set(type, timeout);
+ };
+
+ /**
+ * @file mixins/evented.js
+ * @module evented
+ */
+
+ /**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+ var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+ };
+
+ /**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+ var isValidEventType = function isValidEventType(type) {
+ return (
+ // The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+ var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+ var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+ var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+ };
+
+ /**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+ var normalizeListenArgs = function normalizeListenArgs(self, args) {
+
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target = void 0;
+ var type = void 0;
+ var listener = void 0;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_;
+
+ // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ listener = bind(self, listener);
+
+ return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };
+ };
+
+ /**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+ var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+ };
+
+ /**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+ var EventedMixin = {
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on$$1() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener);
+
+ // If this object is listening to another evented object.
+ if (!isTargetingSelf) {
+
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ };
+
+ // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+ removeListenerOnDispose.guid = listener.guid;
+
+ // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ removeRemoverOnTargetDispose.guid = listener.guid;
+
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one$$1() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener;
+
+ // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener);
+
+ // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ _this2.off(target, type, wrapper);
+ listener.apply(null, largs);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$$1(targetOrType, typeOrListener, listener) {
+
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener);
+
+ // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener;
+
+ // Fail fast and in a meaningful way!
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ // Ensure there's at least a guid, even if the function hasn't been used
+ listener = bind(this, listener);
+
+ // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @returns {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+ };
+
+ /**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {String} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+ function evented(target) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var eventBusKey = options.eventBusKey;
+
+ // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error('The eventBusKey "' + eventBusKey + '" does not refer to an element.');
+ }
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });
+ }
+
+ assign(target, EventedMixin);
+
+ // When any evented object is disposed, it removes all its listeners.
+ target.on('dispose', function () {
+ target.off();
+ window_1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+
+ return target;
+ }
+
+ /**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+
+ /**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+ var StatefulMixin = {
+
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @returns {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes = void 0;
+
+ each(stateUpdates, function (value, key) {
+
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ });
+
+ // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+ if (changes && isEvented(this)) {
+
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+ };
+
+ /**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @returns {Object}
+ * Returns the `target`.
+ */
+ function stateful(target, defaultState) {
+ assign(target, StatefulMixin);
+
+ // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+ target.state = assign({}, target.state, defaultState);
+
+ // Auto-bind the `handleStateChanged` method of the target object if it exists.
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+ }
+
+ /**
+ * @file to-title-case.js
+ * @module to-title-case
+ */
+
+ /**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+ function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.charAt(0).toUpperCase() + string.slice(1);
+ }
+
+ /**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+ function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+ }
+
+ /**
+ * @file merge-options.js
+ * @module merge-options
+ */
+
+ /**
+ * Deep-merge one or more options objects, recursively merging **only** plain
+ * object properties.
+ *
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @returns {Object}
+ * A new object that is the merged result of all sources.
+ */
+ function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+
+ return result;
+ }
+
+ /**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+
+ /**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+ var Component = function () {
+
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ classCallCheck(this, Component);
+
+
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ }
+
+ // Make a copy of prototype.options_ to protect against overriding defaults
+ this.options_ = mergeOptions({}, this.options_);
+
+ // Updated options with supplied options
+ options = this.options_ = mergeOptions(this.options_, options);
+
+ // Get ID from options or options element if one is supplied
+ this.id_ = options.id || options.el && options.el.id;
+
+ // If there was no ID from the options, generate one
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+
+ this.id_ = id + '_component_' + newGUID();
+ }
+
+ this.name_ = options.name || null;
+
+ // Create element if one wasn't provided in options
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ }
+
+ // if evented is anything except false, we want to mixin in evented
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, { eventBusKey: this.el_ ? 'el_' : null });
+ }
+ stateful(this, this.constructor.defaultState);
+
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+
+ // Add any child components in options
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready);
+ // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Component.prototype.dispose = function dispose() {
+
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({ type: 'dispose', bubbles: false });
+
+ // Dispose all children.
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ }
+
+ // Delete child references
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ removeData(this.el_);
+ this.el_ = null;
+ }
+
+ // remove reference to the player after disposing of the element
+ this.player_ = null;
+ };
+
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+
+
+ Component.prototype.player = function player() {
+ return this.player_;
+ };
+
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Component.prototype.options = function options(obj) {
+ log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');
+
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ };
+
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+
+
+ Component.prototype.el = function el() {
+ return this.el_;
+ };
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ };
+
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+
+
+ Component.prototype.localize = function localize(string, tokens) {
+ var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ };
+
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+
+
+ Component.prototype.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ };
+
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+
+
+ Component.prototype.id = function id() {
+ return this.id_;
+ };
+
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+
+
+ Component.prototype.name = function name() {
+ return this.name_;
+ };
+
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+
+
+ Component.prototype.children = function children() {
+ return this.children_;
+ };
+
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+
+
+ Component.prototype.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ };
+
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+
+
+ Component.prototype.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ return this.childNameIndex_[name];
+ };
+
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+
+
+ Component.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;
+
+ var component = void 0;
+ var componentName = void 0;
+
+ // If child is a string, create component with options
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+
+ var componentClassName = options.componentClass || componentName;
+
+ // Set name through options
+ options.name = componentName;
+
+ // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error('Component ' + componentClassName + ' does not exist');
+ }
+
+ // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options);
+
+ // child is a component instance
+ } else {
+ component = child;
+ }
+
+ this.children_.splice(index, 0, component);
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ }
+
+ // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ }
+
+ // Add the UI object's element to the container div (box)
+ // Having an element is not required
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+
+ this.contentEl().insertBefore(component.el(), refNode);
+ }
+
+ // Return so it can stored on parent object if desired.
+ return component;
+ };
+
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+
+
+ Component.prototype.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[component.name()] = null;
+
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ };
+
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+
+
+ Component.prototype.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts;
+
+ // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ }
+
+ // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+ if (opts === false) {
+ return;
+ }
+
+ // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+ if (opts === true) {
+ opts = {};
+ }
+
+ // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+ opts.playerOptions = _this.options_.playerOptions;
+
+ // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ };
+
+ // Allow for an array of children details to passed in the options
+ var workingChildren = void 0;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren
+ // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name = void 0;
+ var opts = void 0;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return { name: name, opts: opts };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ };
+
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+
+
+ Component.prototype.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ };
+
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+
+
+ Component.prototype.ready = function ready(fn) {
+ var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ };
+
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+
+
+ Component.prototype.triggerReady = function triggerReady() {
+ this.isReady_ = true;
+
+ // Ensure ready is triggered asynchronously
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_;
+
+ // Reset Ready Queue
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ }
+
+ // Allow for using event listeners also
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ready');
+ }, 1);
+ };
+
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$ = function $$$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ };
+
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$$ = function $$$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ };
+
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+
+
+ Component.prototype.hasClass = function hasClass$$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ };
+
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+
+
+ Component.prototype.addClass = function addClass$$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ };
+
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+
+
+ Component.prototype.removeClass = function removeClass$$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ };
+
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+
+
+ Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ };
+
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+
+
+ Component.prototype.show = function show() {
+ this.removeClass('vjs-hidden');
+ };
+
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+
+
+ Component.prototype.hide = function hide() {
+ this.addClass('vjs-hidden');
+ };
+
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ };
+
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ };
+
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+
+
+ Component.prototype.getAttribute = function getAttribute$$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+
+
+ Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ };
+
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+
+
+ Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ };
+
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ };
+
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+
+
+ Component.prototype.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ };
+
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+
+
+ Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ }
+
+ // Check if using css width/height (% or px) and adjust
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ }
+
+ // skipListeners allows us to avoid triggering the resize event when setting both width and height
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ }
+
+ // Not setting a value, so getting it
+ // Make sure element exists
+ if (!this.el_) {
+ return 0;
+ }
+
+ // Get dimension value from style
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ }
+
+ // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ };
+
+ /**
+ * Get the width or the height of the `Component` elements computed style. Uses
+ * `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+
+
+ Component.prototype.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var computedStyle = window_1.getComputedStyle(this.el_);
+
+ computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];
+ }
+
+ // remove 'px' from variable and parse as integer
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+ // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+ if (computedWidthOrHeight === 0) {
+ var rule = 'offset' + toTitleCase(widthOrHeight);
+
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ };
+
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains width and height values of the `Component`s
+ * computed style.
+ *
+ * @return {Component~DimensionObject}
+ * The dimensions of the components element
+ */
+
+
+ Component.prototype.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ };
+
+ /**
+ * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} width
+ * The width of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ };
+
+ /**
+ * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} height
+ * The height of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ };
+
+ /**
+ * Set the focus to this component
+ */
+
+
+ Component.prototype.focus = function focus() {
+ this.el_.focus();
+ };
+
+ /**
+ * Remove the focus from this component
+ */
+
+
+ Component.prototype.blur = function blur() {
+ this.el_.blur();
+ };
+
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+
+
+ Component.prototype.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null;
+
+ // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+ var tapMovementThreshold = 10;
+
+ // The maximum length a touch can be while still being considered a tap
+ var touchTimeThreshold = 200;
+
+ var couldBeTap = void 0;
+
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ };
+ // Record start time so we can detect a tap vs. "touch and hold"
+ touchStart = new Date().getTime();
+ // Reset couldBeTap tracking
+ couldBeTap = true;
+ }
+ });
+
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ };
+
+ // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap);
+
+ // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+ this.on('touchend', function (event) {
+ firstTouch = null;
+ // Proceed only if the touchmove/leave/cancel event didn't happen
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = new Date().getTime() - touchStart;
+
+ // Make sure the touch was less than the threshold to be considered a tap
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+ this.trigger('tap');
+ // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ };
+
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+
+
+ Component.prototype.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ }
+
+ // listener for reporting that the user is active
+ var report = bind(this.player(), this.player().reportUserActivity);
+
+ var touchHolding = void 0;
+
+ this.on('touchstart', function () {
+ report();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(touchHolding);
+ // report at the same interval as activityCheck
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report();
+ // stop the interval that maintains activity if the touch is holding
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ };
+
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+
+
+ Component.prototype.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId, disposeFn;
+
+ fn = bind(this, fn);
+
+ timeoutId = window_1.setTimeout(function () {
+ _this2.off('dispose', disposeFn);
+ fn();
+ }, timeout);
+
+ disposeFn = function disposeFn() {
+ return _this2.clearTimeout(timeoutId);
+ };
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.on('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+
+
+ Component.prototype.clearTimeout = function clearTimeout(timeoutId) {
+ window_1.clearTimeout(timeoutId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.off('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+
+
+ Component.prototype.setInterval = function setInterval(fn, interval) {
+ var _this3 = this;
+
+ fn = bind(this, fn);
+
+ var intervalId = window_1.setInterval(fn, interval);
+
+ var disposeFn = function disposeFn() {
+ return _this3.clearInterval(intervalId);
+ };
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.on('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+
+
+ Component.prototype.clearInterval = function clearInterval(intervalId) {
+ window_1.clearInterval(intervalId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.off('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+
+
+ Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this4 = this;
+
+ // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+ var id, disposeFn;
+
+ if (this.supportsRaf_) {
+ fn = bind(this, fn);
+
+ id = window_1.requestAnimationFrame(function () {
+ _this4.off('dispose', disposeFn);
+ fn();
+ });
+
+ disposeFn = function disposeFn() {
+ return _this4.cancelAnimationFrame(id);
+ };
+
+ disposeFn.guid = 'vjs-raf-' + id;
+ this.on('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.setTimeout(fn, 1000 / 60);
+ };
+
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+
+
+ Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ if (this.supportsRaf_) {
+ window_1.cancelAnimationFrame(id);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-raf-' + id;
+
+ this.off('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.clearTimeout(id);
+ };
+
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error('Illegal component name, "' + name + '"; must be a non-empty string.');
+ }
+
+ var Tech = Component.getComponent('Tech');
+
+ // We need to make sure this check is only done if Tech has been registered.
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason = void 0;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error('Illegal component, "' + name + '"; ' + reason + '.');
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players);
+
+ // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+
+ return ComponentToRegister;
+ };
+
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+
+
+ Component.getComponent = function getComponent(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Component.components_ && Component.components_[name]) {
+ return Component.components_[name];
+ }
+ };
+
+ return Component;
+ }();
+
+ /**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+ Component.prototype.supportsRaf_ = typeof window_1.requestAnimationFrame === 'function' && typeof window_1.cancelAnimationFrame === 'function';
+
+ Component.registerComponent('Component', Component);
+
+ /**
+ * @file browser.js
+ * @module browser
+ */
+
+ var USER_AGENT = window_1.navigator && window_1.navigator.userAgent || '';
+ var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+ var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+
+ /*
+ * Device is an iPhone
+ *
+ * @type {Boolean}
+ * @constant
+ * @private
+ */
+ var IS_IPAD = /iPad/i.test(USER_AGENT);
+
+ // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+ // to identify iPhones, we need to exclude iPads.
+ // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+ var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+ var IS_IPOD = /iPod/i.test(USER_AGENT);
+ var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+ var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+ return null;
+ }();
+
+ var IS_ANDROID = /Android/i.test(USER_AGENT);
+ var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+ return null;
+ }();
+
+ var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+
+ var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+ var IS_EDGE = /Edge/i.test(USER_AGENT);
+ var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+ var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+ return null;
+ }();
+ var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+ }();
+
+ var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+ var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+ var TOUCH_ENABLED = isReal() && ('ontouchstart' in window_1 || window_1.navigator.maxTouchPoints || window_1.DocumentTouch && window_1.document instanceof window_1.DocumentTouch);
+
+ var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ TOUCH_ENABLED: TOUCH_ENABLED
+ });
+
+ /**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+ /**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @function time-ranges:indexFunction
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @depricated index must be set to a value, in the future this will throw an error.
+ */
+
+ /**
+ * An object that contains ranges of time for various reasons.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this Object
+ *
+ * @property {time-ranges:indexFunction} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {time-ranges:indexFunction} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+ /**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+ function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error('Failed to execute \'' + fnName + '\' on \'TimeRanges\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');
+ }
+ }
+
+ /**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ *
+ * @depricated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+ function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+ }
+
+ /**
+ * Create a time range object given ranges of time.
+ *
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+ function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+ }
+
+ /**
+ * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.
+ *
+ * @param {number|Array} start
+ * The start of a single range or an array of ranges
+ *
+ * @param {number} end
+ * The end of a single range.
+ *
+ * @private
+ */
+ function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+ return createTimeRangesObj([[start, end]]);
+ }
+
+ /**
+ * @file buffer.js
+ * @module buffer
+ */
+
+ /**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+ function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start = void 0;
+ var end = void 0;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i);
+
+ // buffered end can be bigger than duration by a very small fraction
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+ }
+
+ /**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+
+ /**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+ var FullscreenApi = {};
+
+ // browser API methods
+ var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
+ // WebKit
+ ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Old WebKit (Safari 5.1)
+ ['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Mozilla
+ ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
+ // Microsoft
+ ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];
+
+ var specApi = apiMap[0];
+ var browserApi = void 0;
+
+ // determine the supported set of functions
+ for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document_1) {
+ browserApi = apiMap[i];
+ break;
+ }
+ }
+
+ // map the browser API names to the spec API names
+ if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+ }
+
+ /**
+ * @file media-error.js
+ */
+
+ /**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+ function MediaError(value) {
+
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+ }
+
+ /**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+ MediaError.prototype.code = 0;
+
+ /**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+ MediaError.prototype.message = '';
+
+ /**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+ MediaError.prototype.status = null;
+
+ /**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_CUSTOM
+ * @property {string} 2 - MEDIA_ERR_ABORTED
+ * @property {string} 3 - MEDIA_ERR_NETWORK
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+ MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+ /**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+ MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+ };
+
+ // Add types as properties on MediaError
+ // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+ for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum;
+ // values should be accessible on both the class and instance
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+ }
+
+ var tuple = SafeParseTuple;
+
+ function SafeParseTuple(obj, reviver) {
+ var json;
+ var error = null;
+
+ try {
+ json = JSON.parse(obj, reviver);
+ } catch (err) {
+ error = err;
+ }
+
+ return [error, json];
+ }
+
+ /**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {Boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+ function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+ }
+
+ /**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+ function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+ }
+
+ /**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+ /**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+ var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+
+ return ret;
+ };
+
+ /**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+ var textTracksToJson = function textTracksToJson(tech) {
+
+ var trackEls = tech.$$('track');
+
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+ return json;
+ });
+
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+ };
+
+ /**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+ var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+
+ return tech.textTracks();
+ };
+
+ var textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };
+
+ /**
+ * @file modal-dialog.js
+ */
+
+ var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+ var ESC = 27;
+
+ /**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+ var ModalDialog = function (_Component) {
+ inherits(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ classCallCheck(this, ModalDialog);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+ _this.content(_this.options_.content);
+
+ // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + '-content'
+ }, {
+ role: 'document'
+ });
+
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + '-description vjs-control-text',
+ id: _this.el().getAttribute('aria-describedby')
+ });
+
+ textContent(_this.descEl_, _this.description());
+ _this.el_.appendChild(_this.descEl_);
+ _this.el_.appendChild(_this.contentEl_);
+ return _this;
+ }
+
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ ModalDialog.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + '_description',
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ ModalDialog.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles `keydown` events on the document, looking for ESC, which closes
+ * the modal.
+ *
+ * @param {EventTarget~Event} e
+ * The keypress that triggered this event.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
+ if (e.which === ESC && this.closeable()) {
+ this.close();
+ }
+ };
+
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+
+
+ ModalDialog.prototype.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ };
+
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+
+
+ ModalDialog.prototype.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.');
+
+ // Append a universal closeability message if the modal is closeable.
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ };
+
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+
+
+ ModalDialog.prototype.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalopen');
+ this.opened_ = true;
+
+ // Fill content if the modal has never opened before and
+ // never been filled.
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ }
+
+ // If the player was playing, pause it and take note of its previously
+ // playing state.
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ if (this.closeable()) {
+ this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ // Hide controls and note if they were enabled.
+ this.hadControls_ = player.controls();
+ player.controls(false);
+
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ };
+
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+
+
+ ModalDialog.prototype.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+ return this.opened_;
+ };
+
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+
+
+ ModalDialog.prototype.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ if (this.closeable()) {
+ this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ };
+
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+
+
+ ModalDialog.prototype.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton');
+
+ // If this is being made closeable and has no close button, add one.
+ if (closeable && !close) {
+
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ }
+
+ // If this is being made uncloseable and has a close button, remove it.
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+ return this.closeable_;
+ };
+
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+
+
+ ModalDialog.prototype.fill = function fill() {
+ this.fillWith(this.content());
+ };
+
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+
+
+ ModalDialog.prototype.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true;
+
+ // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalfill');
+
+ // Re-inject the re-filled content element.
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ }
+
+ // make sure that the close button is last in the dialog DOM
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ };
+
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+
+
+ ModalDialog.prototype.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalempty');
+ };
+
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+
+
+ ModalDialog.prototype.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+ return this.content_;
+ };
+
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document_1.activeElement;
+ var playerEl = this.player_.el_;
+
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+
+ this.focus();
+
+ this.on(document_1, 'keydown', this.handleKeyDown);
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+
+ this.off(document_1, 'keydown', this.handleKeyDown);
+ };
+
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {
+ // exit early if it isn't a tab key
+ if (event.which !== 9) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex = void 0;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document_1.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ };
+
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window_1.HTMLAnchorElement || child instanceof window_1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window_1.HTMLInputElement || child instanceof window_1.HTMLSelectElement || child instanceof window_1.HTMLTextAreaElement || child instanceof window_1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window_1.HTMLIFrameElement || child instanceof window_1.HTMLObjectElement || child instanceof window_1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+ }(Component);
+
+ /**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+ };
+
+ Component.registerComponent('ModalDialog', ModalDialog);
+
+ /**
+ * @file track-list.js
+ */
+
+ /**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+ var TrackList = function (_EventTarget) {
+ inherits(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, TrackList);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ _this.tracks_ = [];
+
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(_this, 'length', {
+ get: function get$$1() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+ return _this;
+ }
+
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ TrackList.prototype.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.tracks_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate tracks
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+ this.trigger({
+ track: track,
+ type: 'addtrack'
+ });
+ }
+ };
+
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+
+
+ TrackList.prototype.removeTrack = function removeTrack(rtrack) {
+ var track = void 0;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+ this.trigger({
+ track: track,
+ type: 'removetrack'
+ });
+ };
+
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {String} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+
+
+ TrackList.prototype.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+ }(EventTarget);
+
+ /**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+ TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+ };
+
+ // emulate attribute EventHandler support to allow for feature detection
+ for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+ }
+
+ /**
+ * @file audio-track-list.js
+ */
+
+ /**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another audio track is enabled, disable it
+ list[i].enabled = false;
+ }
+ };
+
+ /**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+ var AudioTrackList = function (_TrackList) {
+ inherits(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, AudioTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+ return _this;
+ }
+
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ AudioTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('enabledchange', function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return AudioTrackList;
+ }(TrackList);
+
+ /**
+ * @file video-track-list.js
+ */
+
+ /**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another video track is enabled, disable it
+ list[i].selected = false;
+ }
+ };
+
+ /**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+ var VideoTrackList = function (_TrackList) {
+ inherits(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, VideoTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+ Object.defineProperty(_this, 'selectedIndex', {
+ get: function get$$1() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+ return -1;
+ },
+ set: function set$$1() {}
+ });
+ return _this;
+ }
+
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ VideoTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('selectedchange', function () {
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return VideoTrackList;
+ }(TrackList);
+
+ /**
+ * @file text-track-list.js
+ */
+
+ /**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+ var TextTrackList = function (_TrackList) {
+ inherits(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ classCallCheck(this, TextTrackList);
+ return possibleConstructorReturn(this, _TrackList.apply(this, arguments));
+ }
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ TextTrackList.prototype.addTrack = function addTrack(track) {
+ _TrackList.prototype.addTrack.call(this, track);
+
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+ track.addEventListener('modechange', bind(this, function () {
+ this.queueTrigger('change');
+ }));
+
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', bind(this, function () {
+ this.trigger('selectedlanguagechange');
+ }));
+ }
+ };
+
+ return TextTrackList;
+ }(TrackList);
+
+ /**
+ * @file html-track-element-list.js
+ */
+
+ /**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+ var HtmlTrackElementList = function () {
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList() {
+ var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, HtmlTrackElementList);
+
+ this.trackElements_ = [];
+
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.trackElements_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate elements
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ };
+
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_ = void 0;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+
+ break;
+ }
+ }
+
+ return trackElement_;
+ };
+
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ this.trackElements_.splice(i, 1);
+
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+ }();
+
+ /**
+ * @file text-track-cue-list.js
+ */
+
+ /**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+ /**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+ var TextTrackCueList = function () {
+
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ classCallCheck(this, TextTrackCueList);
+
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.length_;
+ }
+ });
+ }
+
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ TextTrackCueList.prototype.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get$$1() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ };
+
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+
+
+ TextTrackCueList.prototype.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+ }();
+
+ /**
+ * @file track-kinds.js
+ */
+
+ /**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+ var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+ };
+
+ /**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+ var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+ };
+
+ /**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+ var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+ };
+
+ /**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+ var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+ };
+
+ /**
+ * @file track.js
+ */
+
+ /**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+ var Track = function (_EventTarget) {
+ inherits(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, Track);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_this, key, {
+ get: function get$$1() {
+ return trackProps[key];
+ },
+ set: function set$$1() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+ return _this;
+ }
+
+ return Track;
+ }(EventTarget);
+
+ /**
+ * @file url.js
+ * @module url
+ */
+
+ /**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+ /**
+ * Resolve and parse the elements of a URL.
+ *
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+ var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+ // add the url to an anchor and let the browser parse the URL
+ var a = document_1.createElement('a');
+
+ a.href = url;
+
+ // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div = void 0;
+
+ if (addToBody) {
+ div = document_1.createElement('div');
+ div.innerHTML = '<a href="' + url + '"></a>';
+ a = div.firstChild;
+ // prevent the div from affecting layout
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document_1.body.appendChild(div);
+ }
+
+ // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ }
+
+ // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window_1.location.protocol;
+ }
+
+ if (addToBody) {
+ document_1.body.removeChild(div);
+ }
+
+ return details;
+ };
+
+ /**
+ * Get absolute version of relative URL. Used to tell flash correct URL.
+ *
+ *
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+ var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document_1.createElement('div');
+
+ div.innerHTML = '<a href="' + url + '">x</a>';
+ url = div.firstChild.href;
+ }
+
+ return url;
+ };
+
+ /**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @returns {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+ var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+ var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window_1.location;
+ var urlInfo = parseUrl(url);
+
+ // IE8 protocol relative urls will return ':' for protocol
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
+
+ // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+
+ return crossOrigin;
+ };
+
+ var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+ });
+
+ var isFunction_1 = isFunction;
+
+ var toString$1 = Object.prototype.toString;
+
+ function isFunction(fn) {
+ var string = toString$1.call(fn);
+ return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (
+ // IE8 and below
+ fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
+ }
+
+ var trim_1 = createCommonjsModule(function (module, exports) {
+ exports = module.exports = trim;
+
+ function trim(str) {
+ return str.replace(/^\s*|\s*$/g, '');
+ }
+
+ exports.left = function (str) {
+ return str.replace(/^\s*/, '');
+ };
+
+ exports.right = function (str) {
+ return str.replace(/\s*$/, '');
+ };
+ });
+ var trim_2 = trim_1.left;
+ var trim_3 = trim_1.right;
+
+ var forEach_1 = forEach;
+
+ var toString$2 = Object.prototype.toString;
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+ function forEach(list, iterator, context) {
+ if (!isFunction_1(iterator)) {
+ throw new TypeError('iterator must be a function');
+ }
+
+ if (arguments.length < 3) {
+ context = this;
+ }
+
+ if (toString$2.call(list) === '[object Array]') forEachArray(list, iterator, context);else if (typeof list === 'string') forEachString(list, iterator, context);else forEachObject(list, iterator, context);
+ }
+
+ function forEachArray(array, iterator, context) {
+ for (var i = 0, len = array.length; i < len; i++) {
+ if (hasOwnProperty.call(array, i)) {
+ iterator.call(context, array[i], i, array);
+ }
+ }
+ }
+
+ function forEachString(string, iterator, context) {
+ for (var i = 0, len = string.length; i < len; i++) {
+ // no such thing as a sparse string.
+ iterator.call(context, string.charAt(i), i, string);
+ }
+ }
+
+ function forEachObject(object, iterator, context) {
+ for (var k in object) {
+ if (hasOwnProperty.call(object, k)) {
+ iterator.call(context, object[k], k, object);
+ }
+ }
+ }
+
+ var isArray = function isArray(arg) {
+ return Object.prototype.toString.call(arg) === '[object Array]';
+ };
+
+ var parseHeaders = function parseHeaders(headers) {
+ if (!headers) return {};
+
+ var result = {};
+
+ forEach_1(trim_1(headers).split('\n'), function (row) {
+ var index = row.indexOf(':'),
+ key = trim_1(row.slice(0, index)).toLowerCase(),
+ value = trim_1(row.slice(index + 1));
+
+ if (typeof result[key] === 'undefined') {
+ result[key] = value;
+ } else if (isArray(result[key])) {
+ result[key].push(value);
+ } else {
+ result[key] = [result[key], value];
+ }
+ });
+
+ return result;
+ };
+
+ var immutable = extend;
+
+ var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+
+ function extend() {
+ var target = {};
+
+ for (var i = 0; i < arguments.length; i++) {
+ var source = arguments[i];
+
+ for (var key in source) {
+ if (hasOwnProperty$1.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+
+ return target;
+ }
+
+ var xhr = createXHR;
+ createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop;
+ createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
+
+ forEachArray$1(["get", "put", "post", "patch", "head", "delete"], function (method) {
+ createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
+ options = initParams(uri, options, callback);
+ options.method = method.toUpperCase();
+ return _createXHR(options);
+ };
+ });
+
+ function forEachArray$1(array, iterator) {
+ for (var i = 0; i < array.length; i++) {
+ iterator(array[i]);
+ }
+ }
+
+ function isEmpty(obj) {
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) return false;
+ }
+ return true;
+ }
+
+ function initParams(uri, options, callback) {
+ var params = uri;
+
+ if (isFunction_1(options)) {
+ callback = options;
+ if (typeof uri === "string") {
+ params = { uri: uri };
+ }
+ } else {
+ params = immutable(options, { uri: uri });
+ }
+
+ params.callback = callback;
+ return params;
+ }
+
+ function createXHR(uri, options, callback) {
+ options = initParams(uri, options, callback);
+ return _createXHR(options);
+ }
+
+ function _createXHR(options) {
+ if (typeof options.callback === "undefined") {
+ throw new Error("callback argument missing");
+ }
+
+ var called = false;
+ var callback = function cbOnce(err, response, body) {
+ if (!called) {
+ called = true;
+ options.callback(err, response, body);
+ }
+ };
+
+ function readystatechange() {
+ if (xhr.readyState === 4) {
+ setTimeout(loadFunc, 0);
+ }
+ }
+
+ function getBody() {
+ // Chrome with requestType=blob throws errors arround when even testing access to responseText
+ var body = undefined;
+
+ if (xhr.response) {
+ body = xhr.response;
+ } else {
+ body = xhr.responseText || getXml(xhr);
+ }
+
+ if (isJson) {
+ try {
+ body = JSON.parse(body);
+ } catch (e) {}
+ }
+
+ return body;
+ }
+
+ function errorFunc(evt) {
+ clearTimeout(timeoutTimer);
+ if (!(evt instanceof Error)) {
+ evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
+ }
+ evt.statusCode = 0;
+ return callback(evt, failureResponse);
+ }
+
+ // will load the data & process the response in a special response object
+ function loadFunc() {
+ if (aborted) return;
+ var status;
+ clearTimeout(timeoutTimer);
+ if (options.useXDR && xhr.status === undefined) {
+ //IE8 CORS GET successful response doesn't have a status field, but body is fine
+ status = 200;
+ } else {
+ status = xhr.status === 1223 ? 204 : xhr.status;
+ }
+ var response = failureResponse;
+ var err = null;
+
+ if (status !== 0) {
+ response = {
+ body: getBody(),
+ statusCode: status,
+ method: method,
+ headers: {},
+ url: uri,
+ rawRequest: xhr
+ };
+ if (xhr.getAllResponseHeaders) {
+ //remember xhr can in fact be XDR for CORS in IE
+ response.headers = parseHeaders(xhr.getAllResponseHeaders());
+ }
+ } else {
+ err = new Error("Internal XMLHttpRequest Error");
+ }
+ return callback(err, response, response.body);
+ }
+
+ var xhr = options.xhr || null;
+
+ if (!xhr) {
+ if (options.cors || options.useXDR) {
+ xhr = new createXHR.XDomainRequest();
+ } else {
+ xhr = new createXHR.XMLHttpRequest();
+ }
+ }
+
+ var key;
+ var aborted;
+ var uri = xhr.url = options.uri || options.url;
+ var method = xhr.method = options.method || "GET";
+ var body = options.body || options.data;
+ var headers = xhr.headers = options.headers || {};
+ var sync = !!options.sync;
+ var isJson = false;
+ var timeoutTimer;
+ var failureResponse = {
+ body: undefined,
+ headers: {},
+ statusCode: 0,
+ method: method,
+ url: uri,
+ rawRequest: xhr
+ };
+
+ if ("json" in options && options.json !== false) {
+ isJson = true;
+ headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
+ if (method !== "GET" && method !== "HEAD") {
+ headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
+ body = JSON.stringify(options.json === true ? body : options.json);
+ }
+ }
+
+ xhr.onreadystatechange = readystatechange;
+ xhr.onload = loadFunc;
+ xhr.onerror = errorFunc;
+ // IE9 must have onprogress be set to a unique function.
+ xhr.onprogress = function () {
+ // IE must die
+ };
+ xhr.onabort = function () {
+ aborted = true;
+ };
+ xhr.ontimeout = errorFunc;
+ xhr.open(method, uri, !sync, options.username, options.password);
+ //has to be after open
+ if (!sync) {
+ xhr.withCredentials = !!options.withCredentials;
+ }
+ // Cannot set timeout with sync request
+ // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
+ // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
+ if (!sync && options.timeout > 0) {
+ timeoutTimer = setTimeout(function () {
+ if (aborted) return;
+ aborted = true; //IE9 may still call readystatechange
+ xhr.abort("timeout");
+ var e = new Error("XMLHttpRequest timeout");
+ e.code = "ETIMEDOUT";
+ errorFunc(e);
+ }, options.timeout);
+ }
+
+ if (xhr.setRequestHeader) {
+ for (key in headers) {
+ if (headers.hasOwnProperty(key)) {
+ xhr.setRequestHeader(key, headers[key]);
+ }
+ }
+ } else if (options.headers && !isEmpty(options.headers)) {
+ throw new Error("Headers cannot be set on an XDomainRequest object");
+ }
+
+ if ("responseType" in options) {
+ xhr.responseType = options.responseType;
+ }
+
+ if ("beforeSend" in options && typeof options.beforeSend === "function") {
+ options.beforeSend(xhr);
+ }
+
+ // Microsoft Edge browser sends "undefined" when send is called with undefined value.
+ // XMLHttpRequest spec says to pass null as body to indicate no body
+ // See https://github.com/naugtur/xhr/issues/100.
+ xhr.send(body || null);
+
+ return xhr;
+ }
+
+ function getXml(xhr) {
+ if (xhr.responseType === "document") {
+ return xhr.responseXML;
+ }
+ var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
+ if (xhr.responseType === "" && !firefoxBugTakenEffect) {
+ return xhr.responseXML;
+ }
+
+ return null;
+ }
+
+ function noop() {}
+
+ /**
+ * @file text-track.js
+ */
+
+ /**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+ var parseCues = function parseCues(srcContent, track) {
+ var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, window_1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (window_1.console && window_1.console.groupCollapsed) {
+ window_1.console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return log$1.error(error);
+ });
+ if (window_1.console && window_1.console.groupEnd) {
+ window_1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+ };
+
+ /**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+ var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ xhr(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log$1.error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof window_1.WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ log$1.error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+ };
+
+ /**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+ var TextTrack = function (_Track) {
+ inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings.default;
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ _this.tech_ = settings.tech;
+
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_this, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_this, {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ default: {
+ get: function get$$1() {
+ return default_;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get$$1() {
+ return mode;
+ },
+ set: function set$$1(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+
+
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set$$1() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _this);
+ } else {
+ _this.loaded_ = true;
+ }
+ return _this;
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window_1.vttjs && !(originalCue instanceof window_1.vttjs.VTTCue)) {
+ cue = new window_1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+ }(Track);
+
+ /**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+ TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+ };
+
+ /**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+ var AudioTrack = function (_Track) {
+ inherits(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, AudioTrack);
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var enabled = false;
+
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'enabled', {
+ get: function get$$1() {
+ return enabled;
+ },
+ set: function set$$1(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+ enabled = newEnabled;
+
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enabledchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+ }(Track);
+
+ /**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+ var VideoTrack = function (_Track) {
+ inherits(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, VideoTrack);
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var selected = false;
+
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'selected', {
+ get: function get$$1() {
+ return selected;
+ },
+ set: function set$$1(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+ selected = newSelected;
+
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('selectedchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+ return _this;
+ }
+
+ return VideoTrack;
+ }(Track);
+
+ /**
+ * @file html-track-element.js
+ */
+
+ /**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+ var NONE = 0;
+ var LOADING = 1;
+ var LOADED = 2;
+ var ERROR = 3;
+
+ /**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+ var HTMLTrackElement = function (_EventTarget) {
+ inherits(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, HTMLTrackElement);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var readyState = void 0;
+
+ var track = new TextTrack(options);
+
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this.default = track.default;
+
+ Object.defineProperties(_this, {
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get$$1() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get$$1() {
+ return track;
+ }
+ }
+ });
+
+ readyState = NONE;
+
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _this
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+ }(EventTarget);
+
+ HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+ };
+
+ HTMLTrackElement.NONE = NONE;
+ HTMLTrackElement.LOADING = LOADING;
+ HTMLTrackElement.LOADED = LOADED;
+ HTMLTrackElement.ERROR = ERROR;
+
+ /*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+ var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+ };
+
+ Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + 'Tracks';
+ NORMAL[type].privateName = type + 'Tracks_';
+ });
+
+ var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+ };
+
+ var ALL = mergeOptions(NORMAL, REMOTE);
+
+ REMOTE.names = Object.keys(REMOTE);
+ NORMAL.names = Object.keys(NORMAL);
+ ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+ var vtt = {};
+
+ /**
+ * @file tech.js
+ */
+
+ /**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+ /**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+ function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new ALL.text.TrackClass(options);
+
+ tracks.addTrack(track);
+
+ return track;
+ }
+
+ /**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+ var Tech = function (_Component) {
+ inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+ classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ });
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ Tech.prototype.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ };
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this3[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+ list.removeTrack(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+ return createTimeRanges();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + 'trackchange');
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window_1.WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (document_1.body.contains(this.el())) {
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = document_1.createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ window_1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var _this7 = this;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.playsinline = function playsinline() {};
+
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPlaysinline = function setPlaysinline() {};
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks() {};
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+
+ Tech.techs_[name] = tech;
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (window_1 && window_1.videojs && window_1.videojs[name]) {
+ log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return window_1.videojs[name];
+ }
+ };
+
+ return Tech;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+ /**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+ /**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+ /**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresVolumeControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+ Tech.prototype.featuresMuteControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresFullscreenResize = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresPlaybackRate = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresProgressEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresSourceset = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresTimeupdateEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresNativeTextTracks = false;
+
+ /**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+ Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'seeking', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log$1.error('No source handler found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+ };
+
+ // The base Tech class needs to be registered as a Component. It is the only
+ // Tech that can be registered as a Component.
+ Component.registerComponent('Tech', Tech);
+ Tech.registerTech('Tech', Tech);
+
+ /**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+ Tech.defaultTechOrder_ = [];
+
+ var middlewares = {};
+ var middlewareInstances = {};
+
+ var TERMINATOR = {};
+
+ function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+ }
+
+ function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+ }
+
+ function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+ }
+
+ /**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ */
+ function get$1(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+ }
+
+ /**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ */
+ function set$1(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+ }
+
+ /**
+ * Takes the argument given to the player and calls the `call` version of the method
+ * on each middleware from left to right.
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ */
+ function mediate(middleware, tech, method) {
+ var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR;
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+
+ executeRight(middleware, method, returnValue, terminated);
+
+ return returnValue;
+ }
+
+ var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1
+ };
+
+ var allowedSetters = {
+ setCurrentTime: 1
+ };
+
+ var allowedMediators = {
+ play: 1,
+ pause: 1
+ };
+
+ function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+ }
+
+ function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+ }
+
+ function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+ }
+
+ /**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ */
+ function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+ }
+
+ function setSourceHelper() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
+ var next = arguments[2];
+ var player = arguments[3];
+ var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
+ var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+ var mwFactory = middleware[0],
+ mwrest = middleware.slice(1);
+
+ // if mwFactory is a string, then we're at a fork in the road
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+ // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory);
+
+ // if setSource isn't present, implicitly select this middleware
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ // we've succeeded, now we need to go deeper
+ acc.push(mw);
+
+ // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+ }
+
+ /**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+ var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL'
+ };
+
+ /**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+ var getMimetype = function getMimetype() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+
+ return mimetype || '';
+ };
+
+ /**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+ var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ }
+
+ // 1. check for the type in the `source` cache
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ }
+
+ // 2. see if we have this source in our `currentSources` cache
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ }
+
+ // 3. look for the src url in source elements and use the type there
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ }
+
+ // 4. finally fallback to our list of mime types based on src url extension
+ return getMimetype(src);
+ };
+
+ /**
+ * @module filter-source
+ */
+
+ /**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+ var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({ src: src })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+ };
+
+ /**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+ function fixSource(src) {
+ var mimetype = getMimetype(src.src);
+
+ if (!src.type && mimetype) {
+ src.type = mimetype;
+ }
+
+ return src;
+ }
+
+ /**
+ * @file loader.js
+ */
+
+ /**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+ var MediaLoader = function (_Component) {
+ inherits(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ classCallCheck(this, MediaLoader);
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({ createEl: false }, options);
+
+ // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the browser supports this technology
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+ return _this;
+ }
+
+ return MediaLoader;
+ }(Component);
+
+ Component.registerComponent('MediaLoader', MediaLoader);
+
+ /**
+ * @file clickable-component.js
+ */
+
+ /**
+ * Clickable Component which is clickable or keyboard actionable,
+ * but is not a native HTML button.
+ *
+ * @extends Component
+ */
+
+ var ClickableComponent = function (_Component) {
+ inherits(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ classCallCheck(this, ClickableComponent);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.emitTapEvents();
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createEl = function createEl$$1() {
+ var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');
+ }
+
+ // Add ARIA attributes for clickable element which is not a native HTML button
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ ClickableComponent.prototype.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a control text element on this `Component`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+
+ return this.controlTextEl_;
+ };
+
+ /**
+ * Get or set the localize text to use for the controls on the `Component`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ ClickableComponent.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Enable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ }
+ };
+
+ /**
+ * Disable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ };
+
+ /**
+ * This gets called when a `ClickableComponent` gets:
+ * - Clicked (via the `click` event, listening starts in the constructor)
+ * - Tapped (via the `tap` event, listening starts in the constructor)
+ * - The following things happen in order:
+ * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the
+ * `ClickableComponent`.
+ * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using
+ * {@link ClickableComponent#handleKeyPress}.
+ * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses
+ * the space or enter key.
+ * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`
+ * event as a parameter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+
+
+ ClickableComponent.prototype.handleClick = function handleClick(event) {};
+
+ /**
+ * This gets called when a `ClickableComponent` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ ClickableComponent.prototype.handleFocus = function handleFocus(event) {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when this ClickableComponent has focus and a key gets pressed down. By
+ * default it will call `this.handleClick` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.trigger('click');
+ } else if (_Component.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ /**
+ * Called when a `ClickableComponent` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ ClickableComponent.prototype.handleBlur = function handleBlur(event) {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ return ClickableComponent;
+ }(Component);
+
+ Component.registerComponent('ClickableComponent', ClickableComponent);
+
+ /**
+ * @file poster-image.js
+ */
+
+ /**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+ var PosterImage = function (_ClickableComponent) {
+ inherits(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ classCallCheck(this, PosterImage);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.update();
+ player.on('posterchange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+ _ClickableComponent.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ PosterImage.prototype.createEl = function createEl$$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+
+ return el;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+
+
+ PosterImage.prototype.update = function update(event) {
+ var url = this.player().poster();
+
+ this.setSrc(url);
+
+ // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.setSrc = function setSrc(url) {
+ var backgroundImage = '';
+
+ // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+ if (url) {
+ backgroundImage = 'url("' + url + '")';
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+
+
+ PosterImage.prototype.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+ }(ClickableComponent);
+
+ Component.registerComponent('PosterImage', PosterImage);
+
+ /**
+ * @file text-track-display.js
+ */
+
+ var darkGray = '#222';
+ var lightGray = '#ccc';
+ var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+ };
+
+ /**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+ function constructColor(color, opacity) {
+ var hex = void 0;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+ }
+
+ /**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+ function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+ }
+
+ /**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+ var TextTrackDisplay = function (_Component) {
+ inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ classCallCheck(this, TextTrackDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ var updateDisplayHandler = bind(_this, _this.updateDisplay);
+
+ player.on('loadstart', bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadstart', bind(_this, _this.preselectTrack));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+
+ window_1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window_1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+ var preferredTrack = void 0;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language === track.language) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track;
+ // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ }
+
+ // clear everything if offTextTrackMenuItem was clicked
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track.default) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ };
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof window_1.WebVTT === 'function') {
+ window_1.WebVTT.processCues(window_1, [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof window_1.WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var cues = [];
+
+ for (var _i = 0; _i < track.activeCues.length; _i++) {
+ cues.push(track.activeCues[_i]);
+ }
+
+ window_1.WebVTT.processCues(window_1, cues, this.el_);
+
+ if (!this.player_.textTrackSettings) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window_1.parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+ }(Component);
+
+ Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+ /**
+ * @file loading-spinner.js
+ */
+
+ /**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+ var LoadingSpinner = function (_Component) {
+ inherits(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ classCallCheck(this, LoadingSpinner);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ LoadingSpinner.prototype.createEl = function createEl$$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+
+ return el;
+ };
+
+ return LoadingSpinner;
+ }(Component);
+
+ Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+ /**
+ * @file button.js
+ */
+
+ /**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+ var Button = function (_ClickableComponent) {
+ inherits(Button, _ClickableComponent);
+
+ function Button() {
+ classCallCheck(this, Button);
+ return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ Button.prototype.createEl = function createEl(tag) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ tag = 'button';
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props);
+
+ // Add attributes for button element
+ attributes = assign({
+
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Button.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var className = this.constructor.name;
+
+ log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');
+
+ // Avoid the error message generated by ClickableComponent's addChild method
+ return Component.prototype.addChild.call(this, child, options);
+ };
+
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+
+
+ Button.prototype.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+ this.el_.removeAttribute('disabled');
+ };
+
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+
+
+ Button.prototype.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+ this.el_.setAttribute('disabled', 'disabled');
+ };
+
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+
+
+ Button.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.
+ if (event.which === 32 || event.which === 13) {
+ return;
+ }
+
+ // Pass keypress handling up for unsupported keys
+ _ClickableComponent.prototype.handleKeyPress.call(this, event);
+ };
+
+ return Button;
+ }(ClickableComponent);
+
+ Component.registerComponent('Button', Button);
+
+ /**
+ * @file big-play-button.js
+ */
+
+ /**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+ var BigPlayButton = function (_Button) {
+ inherits(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ classCallCheck(this, BigPlayButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ };
+
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ BigPlayButton.prototype.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play();
+
+ // exit early if clicked via the mouse
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyPress.call(this, event);
+ };
+
+ BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+ }(Button);
+
+ /**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ BigPlayButton.prototype.controlText_ = 'Play Video';
+
+ Component.registerComponent('BigPlayButton', BigPlayButton);
+
+ /**
+ * @file close-button.js
+ */
+
+ /**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+ var CloseButton = function (_Button) {
+ inherits(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ classCallCheck(this, CloseButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CloseButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when this will be
+ * triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+
+
+ CloseButton.prototype.handleClick = function handleClick(event) {
+
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({ type: 'close', bubbles: false });
+ };
+
+ return CloseButton;
+ }(Button);
+
+ Component.registerComponent('CloseButton', CloseButton);
+
+ /**
+ * @file play-toggle.js
+ */
+
+ /**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+ var PlayToggle = function (_Button) {
+ inherits(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ classCallCheck(this, PlayToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'play', _this.handlePlay);
+ _this.on(player, 'pause', _this.handlePause);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlayToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlayToggle.prototype.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+
+
+ PlayToggle.prototype.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ };
+
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+
+
+ PlayToggle.prototype.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+ // change the button text to "Pause"
+ this.controlText('Pause');
+ };
+
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+
+
+ PlayToggle.prototype.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ // change the button text to "Play"
+ this.controlText('Play');
+ };
+
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ PlayToggle.prototype.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended');
+ // change the button text to "Replay"
+ this.controlText('Replay');
+
+ // on the next seek remove the replay button
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlayToggle.prototype.controlText_ = 'Play';
+
+ Component.registerComponent('PlayToggle', PlayToggle);
+
+ /**
+ * @file format-time.js
+ * @module format-time
+ */
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)
+ * will force a number of leading zeros to cover the length of the guide.
+ *
+ * @param {number} seconds
+ * Number of seconds to be turned into a string
+ *
+ * @param {number} guide
+ * Number (in seconds) to model the string after
+ *
+ * @return {string}
+ * Time formatted as H:MM:SS or M:SS
+ */
+ var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s;
+ };
+
+ var implementation = defaultImplementation;
+
+ /**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime implementation.
+ * Will receive the current time in seconds and the guide (in seconds) as arguments.
+ */
+ function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+ }
+
+ /**
+ * Resets formatTime to the default implementation.
+ */
+ function resetFormatTime() {
+ implementation = defaultImplementation;
+ }
+
+ function formatTime (seconds) {
+ var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;
+
+ return implementation(seconds, guide);
+ }
+
+ /**
+ * @file time-display.js
+ */
+
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var TimeDisplay = function (_Component) {
+ inherits(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ classCallCheck(this, TimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TimeDisplay.prototype.createEl = function createEl$$1(plainName) {
+ var className = this.buildCSSClass();
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + ' vjs-time-control vjs-control',
+ innerHTML: '<span class="vjs-control-text">' + this.localize(this.labelText_) + '\xA0</span>'
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + '-display'
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off'
+ });
+
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ TimeDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document_1.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ };
+
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ };
+
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ };
+
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ TimeDisplay.prototype.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+ }(Component);
+
+ /**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ TimeDisplay.prototype.labelText_ = 'Time';
+
+ /**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ TimeDisplay.prototype.controlText_ = 'Time';
+
+ Component.registerComponent('TimeDisplay', TimeDisplay);
+
+ /**
+ * @file current-time-display.js
+ */
+
+ /**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+ var CurrentTimeDisplay = function (_TimeDisplay) {
+ inherits(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ classCallCheck(this, CurrentTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ };
+
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+
+ this.updateFormattedTime_(time);
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+ /**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+
+ Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+ /**
+ * @file duration-display.js
+ */
+
+ /**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+ var DurationDisplay = function (_TimeDisplay) {
+ inherits(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ classCallCheck(this, DurationDisplay);
+
+ // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.updateContent);
+
+ // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ };
+
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+
+
+ DurationDisplay.prototype.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (duration && this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DurationDisplay.prototype.labelText_ = 'Duration';
+
+ /**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ DurationDisplay.prototype.controlText_ = 'Duration';
+
+ Component.registerComponent('DurationDisplay', DurationDisplay);
+
+ /**
+ * @file time-divider.js
+ */
+
+ /**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+ var TimeDivider = function (_Component) {
+ inherits(TimeDivider, _Component);
+
+ function TimeDivider() {
+ classCallCheck(this, TimeDivider);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeDivider.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ });
+ };
+
+ return TimeDivider;
+ }(Component);
+
+ Component.registerComponent('TimeDivider', TimeDivider);
+
+ /**
+ * @file remaining-time-display.js
+ */
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var RemainingTimeDisplay = function (_TimeDisplay) {
+ inherits(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ classCallCheck(this, RemainingTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ };
+
+ /**
+ * The remaining time display prefixes numbers with a "minus" character.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ // TODO: The "-" should be decorative, and not announced by a screen reader
+ return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);
+ };
+
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+
+
+ RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+ /**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+
+ Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+ /**
+ * @file live-display.js
+ */
+
+ // TODO - Future make it click to snap to live
+
+ /**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+ var LiveDisplay = function (_Component) {
+ inherits(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ classCallCheck(this, LiveDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.updateShowing();
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LiveDisplay.prototype.createEl = function createEl$$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: '<span class="vjs-control-text">' + this.localize('Stream Type') + '\xA0</span>' + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ LiveDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+
+
+ LiveDisplay.prototype.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+ }(Component);
+
+ Component.registerComponent('LiveDisplay', LiveDisplay);
+
+ /**
+ * @file slider.js
+ */
+
+ /**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+ var Slider = function (_Component) {
+ inherits(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ classCallCheck(this, Slider);
+
+ // Set property names to bar to match with the child Slider class is looking for
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.bar = _this.getChild(_this.options_.barName);
+
+ // Set a horizontal or vertical class on the slider depending on the slider type
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ Slider.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+
+
+ Slider.prototype.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ this.on('click', this.handleClick);
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+
+
+ Slider.prototype.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+ var doc = this.bar.el_.ownerDocument;
+
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+ this.enabled_ = false;
+ };
+
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Slider.prototype.createEl = function createEl$$1(type) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+
+
+ Slider.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ }
+ // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+ blockTextSelection();
+
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('slideractive');
+
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+
+ this.handleMouseMove(event);
+ };
+
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ Slider.prototype.handleMouseMove = function handleMouseMove(event) {};
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+
+
+ Slider.prototype.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+
+ unblockTextSelection();
+
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('sliderinactive');
+
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+
+ this.update();
+ };
+
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @returns {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+
+
+ Slider.prototype.update = function update() {
+
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ }
+
+ // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+ var progress = this.getPercent();
+ var bar = this.bar;
+
+ // If there's no bar...
+ if (!bar) {
+ return;
+ }
+
+ // Protect against no duration and other division issues
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ }
+
+ // Convert to a percentage for setting
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style;
+
+ // Set the new bar width or height
+ if (this.vertical()) {
+ style.height = percentage;
+ } else {
+ style.width = percentage;
+ }
+
+ return progress;
+ };
+
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+
+
+ Slider.prototype.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+ return position.x;
+ };
+
+ /**
+ * Handle a `focus` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to run.
+ *
+ * @listens focus
+ */
+
+
+ Slider.prototype.handleFocus = function handleFocus() {
+ this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+
+
+ Slider.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepBack();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepForward();
+ }
+ };
+
+ /**
+ * Handle a `blur` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to run.
+ *
+ * @listens blur
+ */
+
+ Slider.prototype.handleBlur = function handleBlur() {
+ this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+
+
+ Slider.prototype.handleClick = function handleClick(event) {
+ event.stopImmediatePropagation();
+ event.preventDefault();
+ };
+
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+
+
+ Slider.prototype.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+ }(Component);
+
+ Component.registerComponent('Slider', Slider);
+
+ /**
+ * @file load-progress-bar.js
+ */
+
+ /**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+ var LoadProgressBar = function (_Component) {
+ inherits(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ classCallCheck(this, LoadProgressBar);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.partEls_ = [];
+ _this.on(player, 'progress', _this.update);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LoadProgressBar.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Loaded') + '</span>: 0%</span>'
+ });
+ };
+
+ LoadProgressBar.prototype.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+
+
+ LoadProgressBar.prototype.update = function update(event) {
+ var buffered = this.player_.buffered();
+ var duration = this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+
+ // get the percent width of a time compared to the total end
+ var percentify = function percentify(time, end) {
+ // no NaN
+ var percent = time / end || 0;
+
+ return (percent >= 1 ? 1 : percent) * 100 + '%';
+ };
+
+ // update the width of the progress bar
+ this.el_.style.width = percentify(bufferedEnd, duration);
+
+ // add child elements to represent the individual buffered time ranges
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ }
+
+ // set the percent based on the width of the progress bar (bufferedEnd)
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ }
+
+ // remove unused buffered range elements
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+ }(Component);
+
+ Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+ /**
+ * @file time-tooltip.js
+ */
+
+ /**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+ var TimeTooltip = function (_Component) {
+ inherits(TimeTooltip, _Component);
+
+ function TimeTooltip() {
+ classCallCheck(this, TimeTooltip);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeTooltip.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ });
+ };
+
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+ // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+ if (!playerRect || !tooltipRect) {
+ return;
+ }
+
+ // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+ // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+ // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+ var pullTooltipBy = tooltipRect.width / 2;
+
+ // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ }
+
+ // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = '-' + pullTooltipBy + 'px';
+ textContent(this.el_, content);
+ };
+
+ return TimeTooltip;
+ }(Component);
+
+ Component.registerComponent('TimeTooltip', TimeTooltip);
+
+ /**
+ * @file play-progress-bar.js
+ */
+
+ /**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var PlayProgressBar = function (_Component) {
+ inherits(PlayProgressBar, _Component);
+
+ function PlayProgressBar() {
+ classCallCheck(this, PlayProgressBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ PlayProgressBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Progress') + '</span>: 0%</span>'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();
+
+ var content = formatTime(time, _this2.player_.duration());
+ var timeTooltip = _this2.getChild('timeTooltip');
+
+ if (timeTooltip) {
+ timeTooltip.update(seekBarRect, seekBarPoint, content);
+ }
+ });
+ };
+
+ return PlayProgressBar;
+ }(Component);
+
+ /**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ PlayProgressBar.prototype.options_ = {
+ children: []
+ };
+
+ // Time tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+ }
+
+ Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+ /**
+ * @file mouse-time-display.js
+ */
+
+ /**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var MouseTimeDisplay = function (_Component) {
+ inherits(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ classCallCheck(this, MouseTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.update = throttle(bind(_this, _this.update), 25);
+ return _this;
+ }
+
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ MouseTimeDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var duration = _this2.player_.duration();
+ var content = formatTime(seekBarPoint * duration, duration);
+
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';
+ _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);
+ });
+ };
+
+ return MouseTimeDisplay;
+ }(Component);
+
+ /**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+ };
+
+ Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+ /**
+ * @file seek-bar.js
+ */
+
+ // The number of seconds the `step*` functions move the timeline.
+ var STEP_SECONDS = 5;
+
+ // The interval at which the bar should update as it progresses.
+ var UPDATE_REFRESH_INTERVAL = 30;
+
+ /**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+ var SeekBar = function (_Slider) {
+ inherits(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ classCallCheck(this, SeekBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.setEventHandlers_();
+ return _this;
+ }
+
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {
+ var _this2 = this;
+
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);
+
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+
+ // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+ this.updateInterval = null;
+
+ this.on(this.player_, ['playing'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+
+ _this2.updateInterval = _this2.setInterval(function () {
+ _this2.requestAnimationFrame(function () {
+ _this2.update();
+ });
+ }, UPDATE_REFRESH_INTERVAL);
+ });
+
+ this.on(this.player_, ['ended', 'pause', 'waiting'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+ });
+
+ this.on(this.player_, ['timeupdate', 'ended'], this.update);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ SeekBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ };
+
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.update_ = function update_(currentTime, percent) {
+ var duration = this.player_.duration();
+
+ // machine readable value of progress bar (percentage complete)
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+
+ // human readable value of progress bar (time complete)
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+
+ // Update the `PlayProgressBar`.
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ };
+
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @returns {number}
+ * The current percent at a number from 0-1
+ */
+
+
+ SeekBar.prototype.update = function update(event) {
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ };
+
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ };
+
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ SeekBar.prototype.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ };
+
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+
+
+ SeekBar.prototype.getPercent = function getPercent() {
+ var percent = this.getCurrentTime_() / this.player_.duration();
+
+ return percent >= 1 ? 1 : percent || 0;
+ };
+
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+
+
+ SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime = this.calculateDistance(event) * this.player_.duration();
+
+ // Don't let video end while scrubbing.
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+
+ // Set new time (tell player to seek to new time)
+ this.player_.currentTime(newTime);
+ };
+
+ SeekBar.prototype.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ SeekBar.prototype.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ };
+
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+
+
+ SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event);
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ if (event) {
+ event.stopPropagation();
+ }
+ this.player_.scrubbing(false);
+
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ };
+
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ };
+
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ };
+
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+
+
+ SeekBar.prototype.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down. By
+ * default it will call `this.handleAction` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.handleAction(event);
+ } else if (_Slider.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Slider.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ return SeekBar;
+ }(Slider);
+
+ /**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+ };
+
+ // MouseTimeDisplay tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+ }
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ SeekBar.prototype.playerEvent = 'timeupdate';
+
+ Component.registerComponent('SeekBar', SeekBar);
+
+ /**
+ * @file progress-control.js
+ */
+
+ /**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+ var ProgressControl = function (_Component) {
+ inherits(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ classCallCheck(this, ProgressControl);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+ _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ ProgressControl.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ };
+
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+
+
+ ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+ // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ };
+
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ };
+
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ ProgressControl.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Disable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+
+ this.addClass('disabled');
+
+ this.enabled_ = false;
+ };
+
+ /**
+ * Enable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+ }(Component);
+
+ /**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+ };
+
+ Component.registerComponent('ProgressControl', ProgressControl);
+
+ /**
+ * @file fullscreen-toggle.js
+ */
+
+ /**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+ var FullscreenToggle = function (_Button) {
+ inherits(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ classCallCheck(this, FullscreenToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document_1[FullscreenApi.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+
+
+ FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ };
+
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ FullscreenToggle.prototype.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+
+ Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+ /**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file volume-level.js
+ */
+
+ /**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeLevel = function (_Component) {
+ inherits(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ classCallCheck(this, VolumeLevel);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ VolumeLevel.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+ }(Component);
+
+ Component.registerComponent('VolumeLevel', VolumeLevel);
+
+ /**
+ * @file volume-bar.js
+ */
+
+ /**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+ var VolumeBar = function (_Slider) {
+ inherits(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ classCallCheck(this, VolumeBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.on('slideractive', _this.updateLastVolume_);
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ };
+
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+
+
+ VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ };
+
+ /**
+ * If the player is muted unmute it.
+ */
+
+
+ VolumeBar.prototype.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ };
+
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+
+
+ VolumeBar.prototype.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+ return this.player_.volume();
+ };
+
+ /**
+ * Increase volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ };
+
+ /**
+ * Decrease volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ };
+
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+
+
+ VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ };
+
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+
+
+ VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ };
+
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+
+
+ VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+ }(Slider);
+
+ /**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+ };
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ VolumeBar.prototype.playerEvent = 'volumechange';
+
+ Component.registerComponent('VolumeBar', VolumeBar);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeControl = function (_Component) {
+ inherits(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumeControl);
+
+ options.vertical = options.vertical || false;
+
+ // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ checkVolumeSupport(_this, player);
+
+ _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+
+ _this.on('mousedown', _this.handleMouseDown);
+ _this.on('touchstart', _this.handleMouseDown);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+ _this.addClass('vjs-slider-active');
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+ _this.removeClass('vjs-slider-active');
+ _this.trigger('sliderinactive');
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeControl.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-control vjs-control ' + orientationClass
+ });
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+ };
+
+ Component.registerComponent('VolumeControl', VolumeControl);
+
+ /**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file mute-toggle.js
+ */
+
+ /**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+ var MuteToggle = function (_Button) {
+ inherits(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ classCallCheck(this, MuteToggle);
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ checkMuteSupport(_this, player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MuteToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MuteToggle.prototype.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ };
+
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+
+
+ MuteToggle.prototype.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ };
+
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3;
+
+ // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+ if (IS_IOS) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ }
+
+ // TODO improve muted icon classes
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, 'vjs-vol-' + i);
+ }
+ addClass(this.el_, 'vjs-vol-' + level);
+ };
+
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ MuteToggle.prototype.controlText_ = 'Mute';
+
+ Component.registerComponent('MuteToggle', MuteToggle);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+ var VolumePanel = function (_Component) {
+ inherits(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumePanel);
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ }
+
+ // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+ return _this;
+ }
+
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ };
+
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ };
+
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+
+
+ VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ }
+
+ // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumePanel.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-panel vjs-control ' + orientationClass
+ });
+ };
+
+ return VolumePanel;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+ };
+
+ Component.registerComponent('VolumePanel', VolumePanel);
+
+ /**
+ * @file menu.js
+ */
+
+ /**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+ var Menu = function (_Component) {
+ inherits(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ classCallCheck(this, Menu);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyPress);
+ return _this;
+ }
+
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+
+
+ Menu.prototype.addItem = function addItem(component) {
+ this.addChild(component);
+ component.on('click', bind(this, function (event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+
+ // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+ if (component.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }));
+ };
+
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+
+
+ Menu.prototype.createEl = function createEl$$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_);
+
+ // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+
+ return el;
+ };
+
+ Menu.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+
+
+ Menu.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepForward();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepBack();
+ }
+ };
+
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+
+
+ Menu.prototype.focus = function focus() {
+ var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+ }(Component);
+
+ Component.registerComponent('Menu', Menu);
+
+ /**
+ * @file menu-button.js
+ */
+
+ /**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+ var MenuButton = function (_Component) {
+ inherits(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, MenuButton);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+ // Add buildCSSClass values to the button, not the wrapper
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+ _this.on(_this.menuButton_, 'focus', _this.handleFocus);
+ _this.on(_this.menuButton_, 'blur', _this.handleBlur);
+
+ _this.on('keydown', _this.handleSubmenuKeyPress);
+ return _this;
+ }
+
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ MenuButton.prototype.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+
+
+ MenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, { menuButton: this });
+
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+ this.hideThreshold_ = 0;
+
+ // Add a title list item to the top
+ if (this.options_.title) {
+ var title = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+
+ this.hideThreshold_ += 1;
+
+ menu.children_.unshift(title);
+ prependTo(title, menu.contentEl());
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+
+
+ MenuButton.prototype.createItems = function createItems() {};
+
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuButton.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ };
+
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+
+
+ MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ // TODO: Fix the CSS so that this isn't necessary
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ MenuButton.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();
+
+ return this.menuButton_.controlText(text, el);
+ };
+
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuButton.prototype.handleClick = function handleClick(event) {
+ // When you click the button it adds focus, which will show the menu.
+ // So we'll remove focus when the mouse leaves the button. Focus is needed
+ // for tab navigation.
+
+ this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {
+ this.unpressButton();
+ this.el_.blur();
+ }));
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ };
+
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+
+
+ MenuButton.prototype.focus = function focus() {
+ this.menuButton_.focus();
+ };
+
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+
+
+ MenuButton.prototype.blur = function blur() {
+ this.menuButton_.blur();
+ };
+
+ /**
+ * This gets called when a `MenuButton` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ MenuButton.prototype.handleFocus = function handleFocus() {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when a `MenuButton` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ MenuButton.prototype.handleBlur = function handleBlur() {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyPress} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ // Up (38) key or Down (40) key press the 'button'
+ } else if (event.which === 38 || event.which === 40) {
+ if (!this.buttonPressed_) {
+ this.pressButton();
+ event.preventDefault();
+ }
+ }
+ };
+
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ }
+ };
+
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+
+
+ MenuButton.prototype.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+ // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ };
+
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+
+
+ MenuButton.prototype.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ };
+
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.disable = function disable() {
+ this.unpressButton();
+
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+
+ this.menuButton_.disable();
+ };
+
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+ }(Component);
+
+ Component.registerComponent('MenuButton', MenuButton);
+
+ /**
+ * @file track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+ var TrackButton = function (_MenuButton) {
+ inherits(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ classCallCheck(this, TrackButton);
+
+ var tracks = options.tracks;
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return possibleConstructorReturn(_this);
+ }
+
+ var updateHandler = bind(_this, _this.update);
+
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+ return _this;
+ }
+
+ return TrackButton;
+ }(MenuButton);
+
+ Component.registerComponent('TrackButton', TrackButton);
+
+ /**
+ * @file menu-item.js
+ */
+
+ /**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+ var MenuItem = function (_ClickableComponent) {
+ inherits(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ classCallCheck(this, MenuItem);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+ return _this;
+ }
+
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: '<span class="vjs-menu-item-text">' + this.localize(this.options_.label) + '</span>',
+ tabIndex: -1
+ }, props), attrs);
+ };
+
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuItem.prototype.handleClick = function handleClick(event) {
+ this.selected(true);
+ };
+
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+
+
+ MenuItem.prototype.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true');
+ // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false');
+ // Indicate un-selected state to screen reader
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+ }(ClickableComponent);
+
+ Component.registerComponent('MenuItem', MenuItem);
+
+ /**
+ * @file text-track-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+ var TextTrackMenuItem = function (_MenuItem) {
+ inherits(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ classCallCheck(this, TextTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.textTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_this, args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ });
+
+ // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+ if (tracks.onchange === undefined) {
+ var event = void 0;
+
+ _this.on(['tap', 'click'], function () {
+ if (_typeof(window_1.Event) !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window_1.Event('change');
+ } catch (err) {
+ // continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document_1.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ }
+
+ // set the default state based on current tracks
+ _this.handleTracksChange();
+ return _this;
+ }
+
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ TextTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var kind = this.track.kind;
+ var kinds = this.track.kinds;
+ var tracks = this.player_.textTracks();
+
+ if (!kinds) {
+ kinds = [kind];
+ }
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ if (track === this.track && kinds.indexOf(track.kind) > -1) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ }
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ };
+
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing';
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage;
+
+ // Don't replace the kind of track across the same language
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ TextTrackMenuItem.prototype.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+ /**
+ * @file off-text-track-menu-item.js
+ */
+
+ /**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var OffTextTrackMenuItem = function (_TextTrackMenuItem) {
+ inherits(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ classCallCheck(this, OffTextTrackMenuItem);
+
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ kind: options.kind,
+ kinds: options.kinds,
+ default: false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ }
+
+ // MenuItem is selectable
+ options.selectable = true;
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ options.multiSelectable = false;
+
+ return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ }
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+ /**
+ * @file text-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+ var TextTrackButton = function (_TrackButton) {
+ inherits(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, TextTrackButton);
+
+ options.tracks = player.textTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ TextTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;
+
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label = void 0;
+
+ if (this.label_) {
+ label = this.label_ + ' off';
+ }
+ // Add an OFF menu item to turn all tracks off
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+
+ this.hideThreshold_ += 1;
+
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // only add tracks that are of an appropriate kind and have a label
+ if (this.kinds_.indexOf(track.kind) > -1) {
+
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+
+ item.addClass('vjs-' + track.kind + '-menu-item');
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+ }(TrackButton);
+
+ Component.registerComponent('TextTrackButton', TextTrackButton);
+
+ /**
+ * @file chapters-track-menu-item.js
+ */
+
+ /**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+ var ChaptersTrackMenuItem = function (_MenuItem) {
+ inherits(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ classCallCheck(this, ChaptersTrackMenuItem);
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime();
+
+ // Modify options for parent MenuItem class's init.
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ };
+
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+
+
+ ChaptersTrackMenuItem.prototype.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime();
+
+ // vjs.log(currentTime, cue.startTime);
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+ /**
+ * @file chapters-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+ var ChaptersButton = function (_TextTrackButton) {
+ inherits(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ classCallCheck(this, ChaptersButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+
+
+ ChaptersButton.prototype.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+ _TextTrackButton.prototype.update.call(this);
+ };
+
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+
+
+ ChaptersButton.prototype.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ }
+
+ // here this.track_ refers to the old track instance
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track;
+
+ // here this.track_ refers to the new track instance
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ };
+
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+
+
+ ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ };
+
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+
+
+ ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+ return this.localize(toTitleCase(this.kind_));
+ };
+
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+
+
+ ChaptersButton.prototype.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ };
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+
+
+ ChaptersButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });
+
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ ChaptersButton.prototype.kind_ = 'chapters';
+
+ /**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ ChaptersButton.prototype.controlText_ = 'Chapters';
+
+ Component.registerComponent('ChaptersButton', ChaptersButton);
+
+ /**
+ * @file descriptions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+ var DescriptionsButton = function (_TextTrackButton) {
+ inherits(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ classCallCheck(this, DescriptionsButton);
+
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+ var tracks = player.textTracks();
+ var changeHandler = bind(_this, _this.handleTracksChange);
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false;
+
+ // Check whether a track of a different kind is showing
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ }
+
+ // If another track is showing, disable this menu button
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DescriptionsButton.prototype.kind_ = 'descriptions';
+
+ /**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+ Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+ /**
+ * @file subtitles-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubtitlesButton = function (_TextTrackButton) {
+ inherits(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ classCallCheck(this, SubtitlesButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ SubtitlesButton.prototype.kind_ = 'subtitles';
+
+ /**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ SubtitlesButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+ /**
+ * @file caption-settings-menu-item.js
+ */
+
+ /**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var CaptionSettingsMenuItem = function (_TextTrackMenuItem) {
+ inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ classCallCheck(this, CaptionSettingsMenuItem);
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ default: false,
+ mode: 'disabled'
+ };
+
+ // CaptionSettingsMenuItem has no concept of 'selected'
+ options.selectable = false;
+
+ options.name = 'CaptionSettingsMenuItem';
+
+ var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+
+ _this.addClass('vjs-texttrack-settings');
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+ return _this;
+ }
+
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+ /**
+ * @file captions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+ var CaptionsButton = function (_TextTrackButton) {
+ inherits(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ classCallCheck(this, CaptionsButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ CaptionsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CaptionsButton.prototype.kind_ = 'captions';
+
+ /**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ CaptionsButton.prototype.controlText_ = 'Captions';
+
+ Component.registerComponent('CaptionsButton', CaptionsButton);
+
+ /**
+ * @file subs-caps-menu-item.js
+ */
+
+ /**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var SubsCapsMenuItem = function (_TextTrackMenuItem) {
+ inherits(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ classCallCheck(this, SubsCapsMenuItem);
+ return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));
+ }
+
+ SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Captions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+ /**
+ * @file sub-caps-button.js
+ */
+ /**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubsCapsButton = function (_TextTrackButton) {
+ inherits(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, SubsCapsButton);
+
+ // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));
+
+ _this.label_ = 'subtitles';
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ SubsCapsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+ SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+ /**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+ SubsCapsButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+ /**
+ * @file audio-track-menu-item.js
+ */
+
+ /**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+ var AudioTrackMenuItem = function (_MenuItem) {
+ inherits(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ classCallCheck(this, AudioTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.audioTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+
+ _this.addClass('vjs-' + track.kind + '-menu-item');
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Descriptions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.enabled = track === this.track;
+ }
+ };
+
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+
+
+ AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+ /**
+ * @file audio-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+ var AudioTrackButton = function (_TrackButton) {
+ inherits(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, AudioTrackButton);
+
+ options.tracks = player.audioTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+
+
+ AudioTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+ }(TrackButton);
+
+ /**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ AudioTrackButton.prototype.controlText_ = 'Audio Track';
+ Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+ /**
+ * @file playback-rate-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+ var PlaybackRateMenuItem = function (_MenuItem) {
+ inherits(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ classCallCheck(this, PlaybackRateMenuItem);
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10);
+
+ // Modify options for parent MenuItem class's init.
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+ return _this;
+ }
+
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player().playbackRate(this.rate);
+ };
+
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuItem.prototype.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+ }(MenuItem);
+
+ /**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuItem.prototype.contentElType = 'button';
+
+ Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+ /**
+ * @file playback-rate-menu-button.js
+ */
+
+ /**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+ var PlaybackRateMenuButton = function (_MenuButton) {
+ inherits(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ classCallCheck(this, PlaybackRateMenuButton);
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ _this.updateVisibility();
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+ _this.on(player, 'ratechange', _this.updateLabel);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+
+ el.appendChild(this.labelEl_);
+
+ return el;
+ };
+
+ PlaybackRateMenuButton.prototype.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+
+
+ PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Updates ARIA accessibility attributes
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ };
+
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates();
+
+ // this will select first one if the last one currently selected
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+ this.player().playbackRate(newRate);
+ };
+
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ };
+
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ };
+
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ };
+
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+ }(MenuButton);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+ Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+ /**
+ * @file spacer.js
+ */
+
+ /**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+ var Spacer = function (_Component) {
+ inherits(Spacer, _Component);
+
+ function Spacer() {
+ classCallCheck(this, Spacer);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ Spacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ Spacer.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+ }(Component);
+
+ Component.registerComponent('Spacer', Spacer);
+
+ /**
+ * @file custom-control-spacer.js
+ */
+
+ /**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+ var CustomControlSpacer = function (_Spacer) {
+ inherits(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ classCallCheck(this, CustomControlSpacer);
+ return possibleConstructorReturn(this, _Spacer.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ CustomControlSpacer.prototype.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ });
+
+ // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+ el.innerHTML = '\xA0';
+ return el;
+ };
+
+ return CustomControlSpacer;
+ }(Spacer);
+
+ Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+ /**
+ * @file control-bar.js
+ */
+
+ /**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+ var ControlBar = function (_Component) {
+ inherits(ControlBar, _Component);
+
+ function ControlBar() {
+ classCallCheck(this, ControlBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ControlBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+ }(Component);
+
+ /**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+ };
+
+ Component.registerComponent('ControlBar', ControlBar);
+
+ /**
+ * @file error-display.js
+ */
+
+ /**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+ var ErrorDisplay = function (_ModalDialog) {
+ inherits(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ classCallCheck(this, ErrorDisplay);
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.on(player, 'error', _this.open);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+
+
+ ErrorDisplay.prototype.content = function content() {
+ var error = this.player().error();
+
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+ }(ModalDialog);
+
+ /**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+ });
+
+ Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+ /**
+ * @file text-track-settings.js
+ */
+
+ var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+
+ var COLOR_BLACK = ['#000', 'Black'];
+ var COLOR_BLUE = ['#00F', 'Blue'];
+ var COLOR_CYAN = ['#0FF', 'Cyan'];
+ var COLOR_GREEN = ['#0F0', 'Green'];
+ var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+ var COLOR_RED = ['#F00', 'Red'];
+ var COLOR_WHITE = ['#FFF', 'White'];
+ var COLOR_YELLOW = ['#FF0', 'Yellow'];
+
+ var OPACITY_OPAQUE = ['1', 'Opaque'];
+ var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+ var OPACITY_TRANS = ['0', 'Transparent'];
+
+ // Configuration for the various <select> elements in the DOM of this component.
+ //
+ // Possible keys include:
+ //
+ // `default`:
+ // The default option index. Only needs to be provided if not zero.
+ // `parser`:
+ // A function which is used to parse the value from the selected option in
+ // a customized way.
+ // `selector`:
+ // The selector used to find the associated <select> element.
+ var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ default: 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+ };
+
+ selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+ /**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+ }
+
+ /**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+
+ return parseOptionValue(value, parser);
+ }
+
+ /**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+ function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+ }
+
+ /**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+ var TextTrackSettings = function (_ModalDialog) {
+ inherits(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ classCallCheck(this, TextTrackSettings);
+
+ options.temporary = false;
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.updateDisplay = bind(_this, _this.updateDisplay);
+
+ // fill the modal and pretend we have opened it
+ _this.fill();
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults();
+
+ // Grab `persistTextTrackSettings` from the player options if not passed in child options
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+ return _this;
+ }
+
+ TextTrackSettings.prototype.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {
+ var _this2 = this;
+
+ var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+ var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+
+ return ['<' + type + ' id="' + id + '" class="' + (type === 'label' ? 'vjs-label' : '') + '">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby="' + selectLabelledbyIds + '">'].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+
+ return ['<option id="' + optionId + '" value="' + o[0] + '" ', 'aria-labelledby="' + selectLabelledbyIds + ' ' + optionId + '">', _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ };
+
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {
+ var legendId = 'captions-text-legend-' + this.id_;
+
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {
+ var legendId = 'captions-background-' + this.id_;
+
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {
+ var legendId = 'captions-window-' + this.id_;
+
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ };
+
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ };
+
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ['<button class="vjs-default-button" title="' + defaultsDescription + '">', this.localize('Reset'), '<span class="vjs-control-text"> ' + defaultsDescription + '</span>', '</button>', '<button class="vjs-done-button">' + this.localize('Done') + '</button>'].join('')
+ });
+ };
+
+ TextTrackSettings.prototype.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ TextTrackSettings.prototype.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ TextTrackSettings.prototype.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ };
+
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ };
+
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ };
+
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+
+
+ TextTrackSettings.prototype.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config.default : 0;
+
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ };
+
+ /**
+ * Restore texttrack settings from localStorage
+ */
+
+
+ TextTrackSettings.prototype.restoreSettings = function restoreSettings() {
+ var values = void 0;
+
+ try {
+ values = JSON.parse(window_1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log$1.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ };
+
+ /**
+ * Save text track settings to localStorage
+ */
+
+
+ TextTrackSettings.prototype.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window_1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window_1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log$1.warn(err);
+ }
+ };
+
+ /**
+ * Update display of text track settings
+ */
+
+
+ TextTrackSettings.prototype.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ this.off(document_1, 'keydown', this.handleKeyDown);
+
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+ }(ModalDialog);
+
+ Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+ /**
+ * @file resize-manager.js
+ */
+
+ /**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+ var ResizeManager = function (_Component) {
+ inherits(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ classCallCheck(this, ResizeManager);
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window_1.ResizeObserver;
+
+ // if `null` was passed, we want to disable the ResizeObserver
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ }
+
+ // Only create an element when ResizeObserver isn't available
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));
+
+ _this.ResizeObserver = options.ResizeObserver || window_1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _this);
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+ return _this;
+ }
+
+ ResizeManager.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager'
+ });
+ };
+
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+
+
+ ResizeManager.prototype.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ ResizeManager.prototype.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.el_ && this.el_.contentWindow) {
+ off(this.el_.contentWindow, 'resize', this.debouncedHandler_);
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+ };
+
+ return ResizeManager;
+ }(Component);
+
+ Component.registerComponent('ResizeManager', ResizeManager);
+
+ /**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+ var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el();
+
+ // if `el.src` is set, that source will be loaded.
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = '';
+
+ // if there are no sources, do not fire sourceset
+ if (!sources.length) {
+ return false;
+ }
+
+ // only count valid/non-duplicate source elements
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ }
+
+ // there were no valid sources
+ if (!srcUrls.length) {
+ return false;
+ }
+
+ // there is only one valid source element url
+ // use that
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+ };
+
+ /**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+ var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document_1.createElement(this.nodeName.toLowerCase());
+
+ // set innerHTML to the value provided
+ dummy.innerHTML = v;
+
+ // make a document fragment to hold the nodes from dummy
+ var docFrag = document_1.createDocumentFragment();
+
+ // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ }
+
+ // remove content
+ this.innerText = '';
+
+ // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+ window_1.Element.prototype.appendChild.call(this, docFrag);
+
+ // then return the result that innerHTML's setter would
+ return this.innerHTML;
+ }
+ });
+
+ /**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+ var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+
+ return descriptor;
+ };
+
+ var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, window_1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+ };
+
+ /**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+ var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el();
+
+ // make sure firstSourceWatch isn't setup twice.
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+
+ sourcesetLoad(tech);
+
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ }
+
+ // store the old function
+ old[k] = el[k];
+
+ // call the old function with a sourceset if a source
+ // was loaded
+ el[k] = appendWrapper(old[k]);
+ });
+
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ };
+
+ // on the first sourceset, we need to revert our changes
+ tech.one('sourceset', el.resetSourceWatch_);
+ };
+
+ /**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+ var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window_1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window_1.Element.prototype.setAttribute.call(this, 'src', v);
+
+ return v;
+ }
+ });
+
+ var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+ };
+
+ /**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+ var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el();
+
+ // make sure sourceset isn't setup twice.
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v);
+
+ // we use the getter here to get the actual value set on src
+ tech.triggerSourceset(el.src);
+
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el);
+
+ // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+ };
+
+ var _templateObject$1 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.']);
+
+ /**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+ var Html5 = function (_Tech) {
+ inherits(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ classCallCheck(this, Html5);
+
+ var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));
+
+ var source = options.source;
+ var crossoriginTracks = false;
+
+ // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ }
+
+ // setup sourceset after late sourceset/init
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+ _this.remoteTextTracks().addTrack(node.track);
+ _this.textTracks().addTrack(node.track);
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log$1.warn(tsml(_templateObject$1));
+ }
+
+ // prevent iOS Safari from disabling metadata text tracks during native playback
+ _this.restoreMetadataTracksInIOSNativePlayer_();
+
+ // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ }
+
+ // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+ return _this;
+ }
+
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ Html5.prototype.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null;
+
+ // tech will handle clearing of the emulated track list
+ _Tech.prototype.dispose.call(this);
+ };
+
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+
+
+ Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ };
+
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState = void 0;
+
+ // captures a snapshot of every metadata track's current state
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ };
+
+ // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ }
+ // we only want this handler to be executed on the first 'change' event
+ textTracks.removeEventListener('change', restoreTrackMode);
+ };
+
+ // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ });
+
+ // start updating the snapshot again after leaving fullscreen
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ };
+
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {String} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {Boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+
+
+ Html5.prototype.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this['featuresNative' + type + 'Tracks']) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + 'TracksListeners_']) {
+ Object.keys(this[lowerCaseType + 'TracksListeners_']).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + 'Tracks'];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + 'TracksListeners_'][eventName]);
+ });
+ }
+
+ this['featuresNative' + type + 'Tracks'] = !override;
+ this[lowerCaseType + 'TracksListeners_'] = null;
+
+ this.proxyNativeTracksForType_(lowerCaseType);
+ };
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ };
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ };
+
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+
+ elTracks.addEventListener(eventName, listener);
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ });
+
+ // Remove (native) tracks that are not used anymore
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ };
+
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ };
+
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Html5.prototype.createEl = function createEl$$1() {
+ var el = this.options_.tag;
+
+ // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document_1.createElement('video');
+
+ // determine if native controls should be used
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ class: 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ }
+
+ // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ };
+
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+
+
+ Html5.prototype.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+
+ return;
+ }
+
+ // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+ var eventsToTrigger = ['loadstart'];
+
+ // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+ eventsToTrigger.push('loadedmetadata');
+
+ // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ }
+
+ // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ }
+
+ // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ }
+
+ // We still need to give the player time to add event listeners
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ };
+
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+
+
+ Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log$1(e, 'Video is not ready. (Video.js)');
+ // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ };
+
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+
+
+ Html5.prototype.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+ return this.el_.duration || NaN;
+ };
+
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+
+
+ Html5.prototype.width = function width() {
+ return this.el_.offsetWidth;
+ };
+
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+
+
+ Html5.prototype.height = function height() {
+ return this.el_.offsetHeight;
+ };
+
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+
+
+ Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', { isFullscreen: false });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+
+ this.trigger('fullscreenchange', { isFullscreen: true });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ };
+
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+
+
+ Html5.prototype.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window_1.navigator && window_1.navigator.userAgent || '';
+
+ // Seems to be broken in Chromium/Chrome && Safari in Leopard
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+
+
+ Html5.prototype.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play();
+
+ // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ };
+
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+
+
+ Html5.prototype.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ };
+
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ Html5.prototype.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ }
+
+ // Setting src through `src` instead of `setSrc` will be deprecated
+ this.setSrc(_src);
+ };
+
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+
+
+ Html5.prototype.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ };
+
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+
+
+ Html5.prototype.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+ return this.el_.currentSrc;
+ };
+
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+
+
+ Html5.prototype.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ };
+
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+ var htmlTrackElement = document_1.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+ if (options.default) {
+ htmlTrackElement.default = options.default;
+ }
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+
+
+ Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+
+
+ Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window_1.performance && typeof window_1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window_1.performance.now();
+ } else if (window_1.performance && window_1.performance.timing && typeof window_1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window_1.Date.now() - window_1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+ }(Tech);
+
+ /* HTML5 Support Testing ---------------------------------------------------- */
+
+ if (isReal()) {
+
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document_1.createElement('video');
+ var track = document_1.createElement('track');
+
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+ }
+
+ /**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+ Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+ };
+
+ /**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+ };
+
+ /**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+ Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+ Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted;
+
+ // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+ Html5.TEST_VID.muted = !muted;
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+ Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ }
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+ Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document_1.createElement('video'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('video'), 'innerHTML', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'innerHTML', { get: noop, set: noop });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+ };
+
+ /**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+ };
+
+ /**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+ };
+
+ /**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+ };
+
+ /**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+ Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+ Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+ Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+ Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+ // TODO: Previous comment: No longer appears to be used. Can probably be removed.
+ // Is this true?
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresFullscreenResize = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresProgressEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+ Html5.prototype.featuresTimeupdateEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+ Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+ Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+ Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();
+
+ // HTML5 Feature detection and Device Fixes --------------------------------- //
+ var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+ var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+ Html5.patchCanPlayType = function () {
+
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+ return canPlayType.call(this, type);
+ };
+ }
+ };
+
+ Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+ };
+
+ // by default, patch the media element
+ Html5.patchCanPlayType();
+
+ Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ }
+
+ // remove any child track or source nodes to prevent their loading
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ }
+
+ // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+ el.removeAttribute('src');
+
+ // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // not supported
+ }
+ })();
+ }
+ };
+
+ Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ }
+
+ // remove any src reference.
+ // not setting `src=''` because that throws an error
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // satisfy linter
+ }
+ })();
+ }
+ };
+
+ /* Native HTML5 element property wrapping ----------------------------------- */
+ // Wrap native boolean attributes with getters that check both property and attribute
+ // The list is as followed:
+ // muted, defaultMuted, autoplay, controls, loop, playsinline
+ [
+ /**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+ 'controls',
+
+ /**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+ });
+
+ // Wrap native boolean attributes with setters that set both property and attribute
+ // The list is as followed:
+ // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+ // setControls is special-cased above
+ [
+ /**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+ });
+
+ // Wrap native properties with a getter
+ // The list is as followed
+ // paused, currentTime, buffered, volume, poster, preload, error, seeking
+ // seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+ // readyState, videoWidth, videoHeight
+ [
+ /**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+ 'paused',
+
+ /**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+ 'currentTime',
+
+ /**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+ 'buffered',
+
+ /**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+ 'poster',
+
+ /**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+ 'error',
+
+ /**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+ 'seeking',
+
+ /**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+ 'seekable',
+
+ /**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+ 'ended',
+
+ /**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'defaultPlaybackRate',
+
+ /**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+ 'played',
+
+ /**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+ 'networkState',
+
+ /**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+ 'readyState',
+
+ /**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoWidth',
+
+ /**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+ });
+
+ // Wrap native properties with a setter in this format:
+ // set + toTitleCase(name)
+ // The list is as follows:
+ // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+ [
+ /**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+ 'src',
+
+ /**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+ 'poster',
+
+ /**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+ 'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+ });
+
+ // wrap native functions with a function
+ // The list is as follows:
+ // pause, load, play
+ [
+ /**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+ 'pause',
+
+ /**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+ 'load',
+
+ /**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+ 'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+ });
+
+ Tech.withSourceHandlers(Html5);
+
+ /**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+ Html5.nativeSourceHandler = {};
+
+ /**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+ };
+
+ /**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+ Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type);
+
+ // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+
+ return Html5.nativeSourceHandler.canPlayType('video/' + ext);
+ }
+
+ return '';
+ };
+
+ /**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+ Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+ };
+
+ /**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+ Html5.nativeSourceHandler.dispose = function () {};
+
+ // Register the native source handler
+ Html5.registerSourceHandler(Html5.nativeSourceHandler);
+
+ Tech.registerTech('Html5', Html5);
+
+ var _templateObject$2 = taggedTemplateLiteralLoose(['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n '], ['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n ']);
+
+ // The following tech events are simply re-triggered
+ // on the player when they happen
+ var TECH_EVENTS_RETRIGGER = [
+ /**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+ 'progress',
+
+ /**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+ 'abort',
+
+ /**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+ 'suspend',
+
+ /**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+ 'emptied',
+ /**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+ 'stalled',
+
+ /**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+ 'loadedmetadata',
+
+ /**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+ /**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+ 'loadeddata',
+
+ /**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+ /**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+ 'timeupdate',
+
+ /**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+ /**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+ 'resize',
+
+ /**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+ 'volumechange',
+
+ /**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+ 'texttrackchange'];
+
+ // events to queue when playback rate is zero
+ // this is a hash for the sole purpose of mapping non-camel-cased event names
+ // to camel-cased function names
+ var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+ };
+
+ /**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+ var Player = function (_Component) {
+ inherits(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ classCallCheck(this, Player);
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || 'vjs_video_' + newGUID();
+
+ // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+ options = assign(Player.getTagSettings(tag), options);
+
+ // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+ options.initChildren = false;
+
+ // Same with creating the element
+ options.createEl = false;
+
+ // don't auto mixin the evented mixin
+ options.evented = false;
+
+ // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+ options.reportTouchActivity = false;
+
+ // If language is not set, get the closest lang attribute
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+ element = element.parentNode;
+ }
+ }
+ }
+
+ // Run base component initializing with new options
+
+ // Tracks when a tech changes the poster
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.isPosterFromTech_ = false;
+
+ // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+ _this.queuedCallbacks_ = [];
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ _this.isReady_ = false;
+
+ // Init state hasStarted_
+ _this.hasStarted_ = false;
+
+ // Init state userActive_
+ _this.userActive_ = false;
+
+ // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ }
+
+ // Store the original tag used to set options
+ _this.tag = tag;
+
+ // Store the tag attributes used to restore html5 element
+ _this.tagAttributes = tag && getAttributes(tag);
+
+ // Update current language
+ _this.language(_this.options_.language);
+
+ // Update Supported Languages
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+
+ Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {
+ languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ // Cache for video property values.
+ _this.cache_ = {};
+
+ // Set poster
+ _this.poster_ = options.poster || '';
+
+ // Set controls
+ _this.controls_ = !!options.controls;
+
+ // Set default values for lastVolume
+ _this.cache_.lastVolume = 1;
+
+ // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+ tag.controls = false;
+ tag.removeAttribute('controls');
+
+ // the attribute overrides the option
+ if (tag.hasAttribute('autoplay')) {
+ _this.options_.autoplay = true;
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ }
+
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+ _this.scrubbing_ = false;
+
+ _this.el_ = _this.createEl();
+
+ // Set default value for lastPlaybackRate
+ _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();
+
+ // Make this an evented object and use `el_` as its event bus.
+ evented(_this, { eventBusKey: 'el_' });
+
+ // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+ var playerOptionsCopy = mergeOptions(_this.options_);
+
+ // Load plugins
+ if (options.plugins) {
+ var plugins = options.plugins;
+
+ Object.keys(plugins).forEach(function (name$$1) {
+ if (typeof this[name$$1] === 'function') {
+ this[name$$1](plugins[name$$1]);
+ } else {
+ throw new Error('plugin "' + name$$1 + '" does not exist');
+ }
+ }, _this);
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+
+ _this.middleware_ = [];
+
+ _this.initChildren();
+
+ // Set isAudio based on whether or not an audio tag was used
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+ // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ }
+
+ // Set ARIA label and region role depending on player type
+ _this.el_.setAttribute('role', 'region');
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ }
+
+ // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // if (browser.TOUCH_ENABLED) {
+ // this.addClass('vjs-touch-enabled');
+ // }
+
+ // iOS Safari has broken hover handling
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ }
+
+ // Make player easily findable by ID
+ Player.players[_this.id_] = _this;
+
+ // Add a major version class to aid css in plugins
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass('vjs-v' + majorVersion);
+
+ // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+ _this.userActive(true);
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+ _this.on('fullscreenchange', _this.handleFullscreenChange_);
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.changingSrc_ = false;
+ _this.playWaitingForReady_ = false;
+ _this.playOnLoadstart_ = null;
+ return _this;
+ }
+
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ Player.prototype.dispose = function dispose() {
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose');
+ // prevent dispose from being called twice
+ this.off('dispose');
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ }
+
+ // Kill reference to this player
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this);
+
+ // the actual .el_ is removed here
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ Player.prototype.createEl = function createEl$$1() {
+ var tag = this.tag;
+ var el = void 0;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ }
+
+ // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document_1.createElement('video');
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+
+ playerElIngest = this.playerElIngest_ = el;
+ // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+ Object.keys(el).forEach(function (k) {
+ tag[k] = el[k];
+ });
+ }
+
+ // set tabindex to -1 to remove the video element from the focus order
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1';
+
+ // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 if JAWS is not being used
+ if (IE_VERSION) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ }
+
+ // Remove width/height attrs from tag so CSS can make it 100% width/height
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ });
+
+ // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech';
+
+ // Make player findable on elements
+ tag.player = el.player = this;
+ // Default state of video is paused
+ this.addClass('vjs-paused');
+
+ // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ // Pass in the width/height/aspectRatio options which will update the style el
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio);
+
+ // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ }
+
+ // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+ tag.initNetworkState_ = tag.networkState;
+
+ // Wrap video tag in div (el/box) container
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ }
+
+ // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+ prependTo(tag, el);
+ this.children_.unshift(tag);
+
+ // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+ this.el_.setAttribute('lang', this.language_);
+
+ this.el_ = el;
+
+ return el;
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+
+
+ Player.prototype.width = function width(value) {
+ return this.dimension('width', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+
+
+ Player.prototype.height = function height(value) {
+ return this.dimension('height', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+
+
+ Player.prototype.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log$1.error('Improper value "' + value + '" supplied for for ' + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ };
+
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will toggle the fluid class.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+
+
+ Player.prototype.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+
+
+ Player.prototype.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ }
+
+ // Check for width:height format
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+ this.aspectRatio_ = ratio;
+
+ // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+ this.fluid(true);
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+
+
+ Player.prototype.updateStyleEl_ = function updateStyleEl_() {
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width = void 0;
+ var height = void 0;
+ var aspectRatio = void 0;
+ var idClass = void 0;
+
+ // The aspect ratio is either used directly or to calculate width and height.
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ }
+
+ // Get the ratio as a decimal we can use to calculate dimensions
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ }
+
+ // Ensure the CSS class is valid by starting with an alpha character
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ }
+
+ // Ensure the right class is still on the player for the style element
+ this.addClass(idClass);
+
+ setTextContent(this.styleEl_, '\n .' + idClass + ' {\n width: ' + width + 'px;\n height: ' + height + 'px;\n }\n\n .' + idClass + '.vjs-fluid {\n padding-top: ' + ratioMultiplier * 100 + '%;\n }\n ');
+ };
+
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+
+
+ Player.prototype.loadTech_ = function loadTech_(techName, source) {
+ var _this2 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+ // get rid of the HTML5 video tag as soon as we are using another tech
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName;
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ this.isReady_ = false;
+
+ // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();
+
+ // Grab tech-specific options from player options and add source and parent element to use.
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + '_' + camelTechName + '_api',
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset
+ };
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ techOptions[props.getterName] = _this2[props.privateName];
+ });
+
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ }
+
+ // Initialize tech instance
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error('No Tech named \'' + titleTechName + '\' exists! \'' + titleTechName + '\' should be registered using videojs.registerTech()\'');
+ }
+
+ this.tech_ = new TechClass(techOptions);
+
+ // player.triggerReady is always async, so don't need this to be async
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+ // Listen to all HTML5-defined events and trigger them on the player
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);
+ });
+
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this2.on(_this2.tech_, event, function (eventObj) {
+ if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {
+ _this2.queuedCallbacks_.push({
+ callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),
+ event: eventObj
+ });
+ return;
+ }
+ _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);
+ });
+ });
+
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+
+ // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ }
+
+ // Get rid of the original video tag reference after the first tech is loaded
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ };
+
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+
+
+ Player.prototype.unloadTech_ = function unloadTech_() {
+ var _this3 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ _this3[props.privateName] = _this3[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+
+ this.isReady_ = false;
+
+ this.tech_.dispose();
+
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ };
+
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+
+
+ Player.prototype.tech = function tech(safety) {
+ if (safety === undefined) {
+ log$1.warn(tsml(_templateObject$2));
+ }
+
+ return this.tech_;
+ };
+
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+
+
+ Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_();
+
+ // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+ this.on(this.tech_, 'mousedown', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+
+ // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);
+
+ // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ };
+
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+
+
+ Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mousedown', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ };
+
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+
+
+ Player.prototype.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady();
+
+ // Keep the same volume as before
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ }
+
+ // Look if the tech found a higher resolution poster while loading
+ this.handleTechPosterChange_();
+
+ // Update the duration if available
+ this.handleTechDurationChange_();
+ };
+
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking');
+
+ // reset the error state
+ this.error(null);
+
+ // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ }
+
+ // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+ this.manualAutoplay_(this.autoplay());
+ };
+
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+
+
+ Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this4 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this4.muted();
+
+ _this4.muted(true);
+
+ var playPromise = _this4.play();
+
+ if (!playPromise || !playPromise.then || !playPromise.catch) {
+ return;
+ }
+
+ return playPromise.catch(function (e) {
+ // restore old value of muted on failure
+ _this4.muted(previouslyMuted);
+ });
+ };
+
+ var promise = void 0;
+
+ if (type === 'any') {
+ promise = this.play();
+
+ if (promise && promise.then && promise.catch) {
+ promise.catch(function () {
+ return muted();
+ });
+ }
+ } else if (type === 'muted') {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!promise || !promise.then || !promise.catch) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this4.trigger({ type: 'autoplay-success', autoplay: type });
+ }).catch(function (e) {
+ _this4.trigger({ type: 'autoplay-failure', autoplay: type });
+ });
+ };
+
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+
+
+ Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {
+ var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ }
+
+ // if we are a blob url, don't update the source cache
+ // blob urls can arise when playback is done via Media Source Extension (MSE)
+ // such as m3u8 sources with @videojs/http-streaming (VHS)
+ if (/^blob:/.test(src)) {
+ return;
+ }
+
+ // make sure all the caches are set to default values
+ // to prevent null checking
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || [];
+
+ // try to get the type of the src that was passed in
+ if (src && !type) {
+ type = findMimetype(this, src);
+ }
+
+ // update `currentSource` cache always
+ this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });
+
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ }
+
+ // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources;
+ // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ }
+
+ // update the tech `src` cache
+ this.cache_.src = src;
+ };
+
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+
+
+ Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this5 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ // update the source to the intial source right away
+ // in some cases this will be empty string
+ this.updateSourceCaches_(event.src);
+
+ // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+ // as this function will be called again.
+ if (!event.src) {
+ var updateCache = function updateCache(e) {
+ if (e.type !== 'sourceset') {
+ _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));
+ }
+
+ _this5.tech_.off(['sourceset', 'loadstart'], updateCache);
+ };
+
+ this.tech_.one(['sourceset', 'loadstart'], updateCache);
+ }
+ }
+
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ };
+
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+
+
+ Player.prototype.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ };
+
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+
+ // hide the poster when the user hits play
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+ this.trigger('play');
+ };
+
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+
+
+ Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+ this.trigger('ratechange');
+ };
+
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+
+
+ Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this6 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+ this.trigger('waiting');
+ this.one('timeupdate', function () {
+ return _this6.removeClass('vjs-waiting');
+ });
+ };
+
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplay');
+ };
+
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplaythrough');
+ };
+
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+ this.trigger('playing');
+ };
+
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeking');
+ };
+
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeked');
+ };
+
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+
+
+ Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+ this.trigger('firstplay');
+ };
+
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+
+
+ Player.prototype.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+ this.trigger('pause');
+ };
+
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+
+
+ Player.prototype.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ended');
+ };
+
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ };
+
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mousedown
+ * @private
+ */
+
+
+ Player.prototype.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ };
+
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+
+
+ Player.prototype.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ }
+
+ // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ };
+
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+
+
+ Player.prototype.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ };
+
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ };
+
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ };
+
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ };
+
+ /**
+ * Fired when the player switches in or out of fullscreen mode
+ *
+ * @private
+ * @listens Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ };
+
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+
+
+ Player.prototype.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ };
+
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ };
+
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+
+
+ Player.prototype.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+
+ this.error(error);
+ };
+
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+
+
+ Player.prototype.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+ this.trigger('textdata', data);
+ };
+
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+
+
+ Player.prototype.getCache = function getCache() {
+ return this.cache_;
+ };
+
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+
+
+ Player.prototype.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set$1(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log$1(e);
+ throw e;
+ }
+ }, true);
+ };
+
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+
+
+ Player.prototype.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get$1(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ }
+
+ // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);
+ throw e;
+ }
+
+ // When a method isn't available on the object it throws a TypeError
+ if (e.name === 'TypeError') {
+ log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);
+ this.tech_.isReady_ = false;
+ throw e;
+ }
+
+ // If error unknown, just log and throw
+ log$1(e);
+ throw e;
+ }
+ };
+
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+
+
+ Player.prototype.play = function play() {
+ var _this7 = this;
+
+ var PromiseClass = this.options_.Promise || window_1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this7.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ };
+
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+
+
+ Player.prototype.play_ = function play_() {
+ var _this8 = this;
+
+ var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;
+
+ // If this is called while we have a play queued up on a loadstart, remove
+ // that listener to avoid getting in a potentially bad state.
+ if (this.playOnLoadstart_) {
+ this.off('loadstart', this.playOnLoadstart_);
+ }
+
+ // If the player/tech is not ready, queue up another call to `play()` for
+ // when it is. This will loop back into this method for another attempt at
+ // playback when the tech is ready.
+ if (!this.isReady_) {
+
+ // Bail out if we're already waiting for `ready`!
+ if (this.playWaitingForReady_) {
+ return;
+ }
+
+ this.playWaitingForReady_ = true;
+ this.ready(function () {
+ _this8.playWaitingForReady_ = false;
+ callback(_this8.play());
+ });
+
+ // If the player/tech is ready and we have a source, we can attempt playback.
+ } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {
+ callback(this.techGet_('play'));
+ return;
+
+ // If the tech is ready, but we do not have a source, we'll need to wait
+ // for both the `ready` and a `loadstart` when the source is finally
+ // resolved by middleware and set on the player.
+ //
+ // This can happen if `play()` is called while changing sources or before
+ // one has been set on the player.
+ } else {
+
+ this.playOnLoadstart_ = function () {
+ _this8.playOnLoadstart_ = null;
+ callback(_this8.play());
+ };
+
+ this.one('loadstart', this.playOnLoadstart_);
+ }
+ };
+
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+
+
+ Player.prototype.pause = function pause() {
+ this.techCall_('pause');
+ };
+
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+
+
+ Player.prototype.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ };
+
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+
+
+ Player.prototype.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ };
+
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+
+
+ Player.prototype.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ };
+
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+
+
+ Player.prototype.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ }
+
+ // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ };
+
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+
+
+ Player.prototype.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds);
+
+ // Standardize on Infinity for signaling video is live
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+ } else {
+ this.removeClass('vjs-live');
+ }
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ };
+
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ };
+
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ };
+
+ //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+
+
+ Player.prototype.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ };
+
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+
+
+ Player.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ };
+
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+
+
+ Player.prototype.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ };
+
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+
+
+ Player.prototype.volume = function volume(percentAsDecimal) {
+ var vol = void 0;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ }
+
+ // Default to 1 when returning current volume.
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ };
+
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+
+
+ Player.prototype.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+ return this.techGet_('muted') || false;
+ };
+
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+
+
+ Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+ return this.techGet_('defaultMuted') || false;
+ };
+
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+
+
+ Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+ return this.cache_.lastVolume;
+ };
+
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+
+
+ Player.prototype.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ };
+
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+
+
+ Player.prototype.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ return;
+ }
+ return !!this.isFullscreen_;
+ };
+
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.requestFullscreen = function requestFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(true);
+
+ if (fsApi.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document_1, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {
+ this.isFullscreen(document_1[fsApi.fullscreenElement]);
+
+ // If cancelling fullscreen, remove event listener.
+ if (this.isFullscreen() === false) {
+ off(document_1, fsApi.fullscreenchange, documentFullscreenChange);
+ }
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }));
+
+ this.el_[fsApi.requestFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.exitFullscreen = function exitFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(false);
+
+ // Check for browser element fullscreen support
+ if (fsApi.requestFullscreen) {
+ document_1[fsApi.exitFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+
+
+ Player.prototype.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true;
+
+ // Storing original doc overflow value to return to when fullscreen is off
+ this.docOrigOverflow = document_1.documentElement.style.overflow;
+
+ // Add listener for esc key to exit fullscreen
+ on(document_1, 'keydown', bind(this, this.fullWindowOnEscKey));
+
+ // Hide any scroll bars
+ document_1.documentElement.style.overflow = 'hidden';
+
+ // Apply fullscreen styles
+ addClass(document_1.body, 'vjs-full-window');
+
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enterFullWindow');
+ };
+
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+
+
+ Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (event.keyCode === 27) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ };
+
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+
+
+ Player.prototype.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document_1, 'keydown', this.fullWindowOnEscKey);
+
+ // Unhide scroll bars.
+ document_1.documentElement.style.overflow = this.docOrigOverflow;
+
+ // Remove fullscreen styles
+ removeClass(document_1.body, 'vjs-full-window');
+
+ // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('exitFullWindow');
+ };
+
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Player.prototype.canPlayType = function canPlayType(type) {
+ var can = void 0;
+
+ // Loop through each playback technology in the options order
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the current tech is defined before continuing
+ if (!tech) {
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ continue;
+ }
+
+ // Check if the browser supports this technology
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+
+
+ Player.prototype.selectSource = function selectSource(sources) {
+ var _this9 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ return false;
+ });
+
+ // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found = void 0;
+
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+
+ return found;
+ };
+
+ var foundSourceAndTech = void 0;
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {
+ return { source: source, tech: techName };
+ }
+ };
+
+ // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ };
+
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+
+
+ Player.prototype.src = function src(source) {
+ var _this10 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ }
+ // filter out invalid sources and turn our source into
+ // an array of source objects
+ var sources = filterSource(source);
+
+ // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+ return;
+ }
+
+ // intial sources
+ this.changingSrc_ = true;
+
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]);
+
+ // middlewareSource is the source after it has been changed by middleware
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this10.middleware_ = mws;
+
+ // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+ _this10.cache_.sources = sources;
+ _this10.updateSourceCaches_(middlewareSource);
+
+ var err = _this10.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this10.src(sources.slice(1));
+ }
+
+ _this10.changingSrc_ = false;
+
+ // We need to wrap this in a timeout to give folks a chance to add error event handlers
+ _this10.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+
+ // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+ _this10.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this10.tech_);
+ });
+ };
+
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {Boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+
+
+ Player.prototype.src_ = function src_(source) {
+ var _this11 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true;
+ // load this technology with the chosen source
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this11.changingSrc_ = false;
+ });
+ return false;
+ }
+
+ // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+ this.ready(function () {
+
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+
+ return false;
+ };
+
+ /**
+ * Begin loading the src data.
+ */
+
+
+ Player.prototype.load = function load() {
+ this.techCall_('load');
+ };
+
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * and calls `reset` on the tech`.
+ */
+
+
+ Player.prototype.reset = function reset() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ };
+
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+
+
+ Player.prototype.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = [];
+
+ // assume `{}` or `{ src }`
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ };
+
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+
+
+ Player.prototype.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ };
+
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+
+
+ Player.prototype.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ };
+
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+
+
+ Player.prototype.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ };
+
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+
+
+ Player.prototype.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+ return this.techGet_('preload');
+ };
+
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+
+
+ Player.prototype.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay = void 0;
+
+ // if the value is a valid string set it to that
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false;
+
+ // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false;
+
+ // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = techAutoplay || this.options_.autoplay;
+
+ // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ };
+
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+
+
+ Player.prototype.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+ return this.techGet_('playsinline');
+ };
+
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {string}
+ * The current value of loop when getting
+ */
+
+
+ Player.prototype.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+ return this.techGet_('loop');
+ };
+
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+
+
+ Player.prototype.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ }
+
+ // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ }
+
+ // update the internal poster variable
+ this.poster_ = src;
+
+ // update the tech's poster
+ this.techCall_('setPoster', src);
+
+ this.isPosterFromTech_ = false;
+
+ // alert components that the poster has been set
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('posterchange');
+ };
+
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true;
+
+ // Let components know the poster has changed
+ this.trigger('posterchange');
+ }
+ }
+ };
+
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+
+
+ Player.prototype.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsenabled');
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsdisabled');
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ };
+
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+
+
+ Player.prototype.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingcustomcontrols');
+ }
+ };
+
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+
+
+ Player.prototype.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ }
+
+ // restoring to default
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+ return;
+ }
+
+ this.error_ = new MediaError(err);
+
+ // add the vjs-error classname to the player
+ this.addClass('vjs-error');
+
+ // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+ log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);
+
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+ this.trigger('error');
+
+ return;
+ };
+
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+
+
+ Player.prototype.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ };
+
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+
+
+ Player.prototype.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('useractive');
+ return;
+ }
+
+ // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('userinactive');
+ };
+
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+
+
+ Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress = void 0;
+ var lastMoveX = void 0;
+ var lastMoveY = void 0;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(mouseInProgress);
+ // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity();
+ // Stop the interval that maintains activity if the mouse/touch is down
+ this.clearInterval(mouseInProgress);
+ };
+
+ // Any mouse movement will be considered user activity
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+
+ // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity);
+
+ // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+ var inactivityTimeout = void 0;
+
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ }
+
+ // Reset the activity tracker
+ this.userActivity_ = false;
+
+ // If the user state was inactive, set the state to active
+ this.userActive(true);
+
+ // Clear any existing inactivity timeout to start the timer over
+ this.clearTimeout(inactivityTimeout);
+
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ }
+
+ // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ };
+
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+
+
+ Player.prototype.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+
+
+ Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+
+
+ Player.prototype.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ };
+
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+
+
+ Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ };
+
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ };
+
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+
+
+ Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {
+ var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ _ref3$track = _ref3.track,
+ track = _ref3$track === undefined ? arguments[0] : _ref3$track;
+
+ // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+
+
+ Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ };
+
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+
+
+ Player.prototype.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ };
+
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+
+
+ Player.prototype.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ };
+
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+
+
+ Player.prototype.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ };
+
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+
+
+ Player.prototype.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ };
+
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+
+
+ Player.prototype.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // deep merge tracks and null out player so no circular references
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ };
+
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+
+
+ Player.prototype.createModal = function createModal(content, options) {
+ var _this12 = this;
+
+ options = options || {};
+ options.content = content || '';
+
+ var modal = new ModalDialog(this, options);
+
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this12.removeChild(modal);
+ });
+
+ modal.open();
+ return modal;
+ };
+
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ }
+
+ // Check if data-setup attr exists.
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = tuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log$1.error(err);
+ }
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions);
+
+ // Get tag children settings
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i];
+ // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ };
+
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+
+
+ Player.prototype.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document_1.createElement('i');
+
+ // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||
+ // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+ /**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ }
+
+ // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * Global player list
+ *
+ * @type {Object}
+ */
+ Player.players = {};
+
+ var navigator = window_1.navigator;
+
+ /*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+ Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+
+ html5: {},
+ flash: {},
+
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+
+ // locales and their language translations
+ languages: {},
+
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.'
+ };
+
+ [
+ /**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+ 'ended',
+ /**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+ 'seeking',
+ /**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+ 'seekable',
+ /**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+ 'networkState',
+ /**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+ 'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+ });
+
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {
+ return this.trigger(event);
+ };
+ });
+
+ /**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+ /**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+ Component.registerComponent('Player', Player);
+
+ /**
+ * @file plugin.js
+ */
+
+ /**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var BASE_PLUGIN_NAME = 'plugin';
+
+ /**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var PLUGIN_CACHE_KEY = 'activePlugins_';
+
+ /**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+ var pluginStorage = {};
+
+ /**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {boolean}
+ * Whether or not the plugin has been registered.
+ */
+ var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+ };
+
+ /**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or undefined).
+ */
+ var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+ };
+
+ /**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+ var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+ };
+
+ /**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {Boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+ var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+ };
+
+ /**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @returns {Function}
+ * A wrapper function for the given plugin.
+ */
+ var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);
+
+ var instance = plugin.apply(this, arguments);
+
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });
+
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+
+ return basicPluginWrapper;
+ };
+
+ /**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @returns {Function}
+ */
+ var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+
+ return function () {
+ triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();
+
+ // The plugin is replaced by a function that returns the current instance.
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+
+ return instance;
+ };
+ };
+
+ /**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+ var Plugin = function () {
+
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ classCallCheck(this, Plugin);
+
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player;
+
+ // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+ evented(this);
+ delete this.trigger;
+
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name);
+
+ // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+ this.dispose = bind(this, this.dispose);
+
+ // If the player is disposed, dispose the plugin.
+ player.on('dispose', this.dispose);
+ }
+
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ Plugin.prototype.version = function version() {
+ return this.constructor.VERSION;
+ };
+
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @returns {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+
+
+ Plugin.prototype.getEventHash = function getEventHash() {
+ var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ };
+
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @returns {boolean}
+ * Whether or not default was prevented.
+ */
+
+
+ Plugin.prototype.trigger = function trigger$$1(event) {
+ var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ };
+
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+
+
+ Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};
+
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+
+
+ Plugin.prototype.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose);
+
+ // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null;
+
+ // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ };
+
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @returns {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ };
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @returns {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error('Illegal plugin name, "' + name + '", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');
+ }
+
+ if (pluginExists(name)) {
+ log$1.warn('A plugin named "' + name + '" already exists. You may want to avoid re-registering plugins!');
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error('Illegal plugin name, "' + name + '", cannot share a name with an existing player method!');
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error('Illegal plugin for "' + name + '", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');
+ }
+
+ pluginStorage[name] = plugin;
+
+ // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ };
+
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered.
+ */
+
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @returns {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+
+
+ Plugin.getPlugins = function getPlugins() {
+ var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);
+
+ var result = void 0;
+
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+
+ return result;
+ };
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {string}
+ * The plugin's version or an empty string.
+ */
+
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+ }();
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+ Plugin.getPlugin = getPlugin;
+
+ /**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+ Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+
+ Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+ };
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+ };
+
+ /**
+ * @file extend.js
+ * @module extend
+ */
+
+ /**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+ var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+ };
+
+ /**
+ * Function for subclassing using the same inheritance that
+ * videojs uses internally
+ *
+ * @static
+ * @const
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * The class to inherit to
+ *
+ * @return {Object}
+ * The new object with subClassMethods that inherited superClass.
+ */
+ var extendFn = function extendFn(superClass) {
+ var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass);
+
+ // Extend subObj's prototype with functions and other properties from props
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+ };
+
+ /**
+ * @file video.js
+ * @module videojs
+ */
+
+ /**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @returns {string}
+ * The string, without any leading `#`.
+ */
+ var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+ };
+
+ /**
+ * Doubles as the main function for users to create a player instance and also
+ * the main library object.
+ * The `videojs` function can be used to initialize or retrieve a player.
+ *
+ * @param {string|Element} id
+ * Video element or video element ID
+ *
+ * @param {Object} [options]
+ * Optional options object for config/settings
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Optional ready callback
+ *
+ * @return {Player}
+ * A player instance
+ */
+ function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log$1.warn('Player "' + id + '" is already initialised. Options will not be applied.');
+ }
+ if (ready) {
+ player.ready(ready);
+ }
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ }
+
+ if (!document_1.body.contains(el)) {
+ log$1.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log$1.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ });
+
+ // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+ var PlayerComponent = Component.getComponent('Player');
+
+ player = new PlayerComponent(el, options, ready);
+
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+
+ return player;
+ }
+
+ /**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ */
+ videojs$1.hooks_ = {};
+
+ /**
+ * Get a list of hooks for a specific lifecycle
+ * @function videojs.hooks
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+ videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+ return videojs$1.hooks_[type];
+ };
+
+ /**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+ };
+
+ /**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(undefined, arguments);
+ };
+
+ return wrapper;
+ }));
+ };
+
+ /**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+ videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+
+ return true;
+ };
+
+ // Add default styles
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style$1 = $('.vjs-styles-defaults');
+
+ if (!style$1) {
+ style$1 = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style$1, head.firstChild);
+ }
+ setTextContent(style$1, '\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ');
+ }
+ }
+
+ // Run Auto-load players
+ // You have to wait at least once in case this script is loaded after your
+ // video in the DOM (weird behavior only with minified version)
+ autoSetupTimeout(1, videojs$1);
+
+ /**
+ * Current software version. Follows semver.
+ *
+ * @type {string}
+ */
+ videojs$1.VERSION = version;
+
+ /**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+ videojs$1.options = Player.prototype.options_;
+
+ /**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+ videojs$1.getPlayers = function () {
+ return Player.players;
+ };
+
+ /**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @returns {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+ videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag = void 0;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId;
+
+ // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+ };
+
+ /**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+ videojs$1.getAllPlayers = function () {
+ return (
+
+ // Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+ };
+
+ /**
+ * Expose players object.
+ *
+ * @memberOf videojs
+ * @property {Object} players
+ */
+ videojs$1.players = Player.players;
+
+ /**
+ * Get a component class object by name
+ *
+ * @borrows Component.getComponent as videojs.getComponent
+ */
+ videojs$1.getComponent = Component.getComponent;
+
+ /**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+ videojs$1.registerComponent = function (name$$1, comp) {
+ if (Tech.isTech(comp)) {
+ log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');
+ }
+
+ Component.registerComponent.call(Component, name$$1, comp);
+ };
+
+ /**
+ * Get a Tech class object by name
+ *
+ * @borrows Tech.getTech as videojs.getTech
+ */
+ videojs$1.getTech = Tech.getTech;
+
+ /**
+ * Register a Tech so it can referred to by name.
+ * This is used in the tech order for the player.
+ *
+ * @borrows Tech.registerTech as videojs.registerTech
+ */
+ videojs$1.registerTech = Tech.registerTech;
+
+ /**
+ * Register a middleware to a source type.
+ *
+ * @param {String} type A string representing a MIME type.
+ * @param {function(player):object} middleware A middleware factory that takes a player.
+ */
+ videojs$1.use = use;
+
+ /**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @memberOf {videojs}
+ * @property {object} middleware.TERMINATOR
+ */
+ Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+ });
+
+ Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+ });
+
+ /**
+ * A suite of browser and device tests from {@link browser}.
+ *
+ * @type {Object}
+ * @private
+ */
+ videojs$1.browser = browser;
+
+ /**
+ * Whether or not the browser supports touch events. Included for backward
+ * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`
+ * instead going forward.
+ *
+ * @deprecated since version 5.0
+ * @type {boolean}
+ */
+ videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+
+ /**
+ * Subclass an existing class
+ * Mimics ES6 subclassing with the `extend` keyword
+ *
+ * @borrows extend:extendFn as videojs.extend
+ */
+ videojs$1.extend = extendFn;
+
+ /**
+ * Merge two options objects recursively
+ * Performs a deep merge like lodash.merge but **only merges plain objects**
+ * (not arrays, elements, anything else)
+ * Other values will be copied directly from the second object.
+ *
+ * @borrows merge-options:mergeOptions as videojs.mergeOptions
+ */
+ videojs$1.mergeOptions = mergeOptions;
+
+ /**
+ * Change the context (this) of a function
+ *
+ * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native
+ * `function() {}.bind(newContext);` instead of this.
+ *
+ * @borrows fn:bind as videojs.bind
+ */
+ videojs$1.bind = bind;
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @borrows plugin:registerPlugin as videojs.registerPlugin
+ * @method registerPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+ videojs$1.registerPlugin = Plugin.registerPlugin;
+
+ /**
+ * Deregister a Video.js plugin.
+ *
+ * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin
+ * @method deregisterPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered. Must be a string and
+ * must match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ */
+ videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+
+ /**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated
+ * videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+ videojs$1.plugin = function (name$$1, plugin) {
+ log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name$$1, plugin);
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+ videojs$1.getPlugins = Plugin.getPlugins;
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+ videojs$1.getPlugin = Plugin.getPlugin;
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+ videojs$1.getPluginVersion = Plugin.getPluginVersion;
+
+ /**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+ videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+
+ return videojs$1.options.languages[code];
+ };
+
+ /**
+ * Log messages
+ *
+ * @borrows log:log as videojs.log
+ */
+ videojs$1.log = log$1;
+
+ /**
+ * Creates an emulated TimeRange object.
+ *
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRange
+ */
+ /**
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges
+ */
+ videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide
+ *
+ * @borrows format-time:formatTime as videojs.formatTime
+ */
+ videojs$1.formatTime = formatTime;
+
+ /**
+ * Replaces format-time with a custom implementation, to be used in place of the default.
+ *
+ * @borrows format-time:setFormatTime as videojs.setFormatTime
+ *
+ * @method setFormatTime
+ *
+ * @param {Function} customFn
+ * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.
+ * Passed fn should return a string.
+ */
+ videojs$1.setFormatTime = setFormatTime;
+
+ /**
+ * Resets format-time to the default implementation.
+ *
+ * @borrows format-time:resetFormatTime as videojs.resetFormatTime
+ *
+ * @method resetFormatTime
+ */
+ videojs$1.resetFormatTime = resetFormatTime;
+
+ /**
+ * Resolve and parse the elements of a URL
+ *
+ * @borrows url:parseUrl as videojs.parseUrl
+ *
+ */
+ videojs$1.parseUrl = parseUrl;
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @borrows url:isCrossOrigin as videojs.isCrossOrigin
+ */
+ videojs$1.isCrossOrigin = isCrossOrigin;
+
+ /**
+ * Event target class.
+ *
+ * @borrows EventTarget as videojs.EventTarget
+ */
+ videojs$1.EventTarget = EventTarget;
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @borrows events:on as videojs.on
+ */
+ videojs$1.on = on;
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @borrows events:one as videojs.one
+ */
+ videojs$1.one = one;
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @borrows events:off as videojs.off
+ */
+ videojs$1.off = off;
+
+ /**
+ * Trigger an event for an element
+ *
+ * @borrows events:trigger as videojs.trigger
+ */
+ videojs$1.trigger = trigger;
+
+ /**
+ * A cross-browser XMLHttpRequest wrapper. Here's a simple example:
+ *
+ * @param {Object} options
+ * settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+ videojs$1.xhr = xhr;
+
+ /**
+ * TextTrack class
+ *
+ * @borrows TextTrack as videojs.TextTrack
+ */
+ videojs$1.TextTrack = TextTrack;
+
+ /**
+ * export the AudioTrack class so that source handlers can create
+ * AudioTracks and then add them to the players AudioTrackList
+ *
+ * @borrows AudioTrack as videojs.AudioTrack
+ */
+ videojs$1.AudioTrack = AudioTrack;
+
+ /**
+ * export the VideoTrack class so that source handlers can create
+ * VideoTracks and then add them to the players VideoTrackList
+ *
+ * @borrows VideoTrack as videojs.VideoTrack
+ */
+ videojs$1.VideoTrack = VideoTrack;
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @borrows dom:isEl as videojs.isEl
+ * @deprecated Use videojs.dom.isEl() instead
+ */
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @borrows dom:isTextNode as videojs.isTextNode
+ * @deprecated Use videojs.dom.isTextNode() instead
+ */
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @borrows dom:createEl as videojs.createEl
+ * @deprecated Use videojs.dom.createEl() instead
+ */
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @borrows dom:hasElClass as videojs.hasClass
+ * @deprecated Use videojs.dom.hasClass() instead
+ */
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @borrows dom:addElClass as videojs.addClass
+ * @deprecated Use videojs.dom.addClass() instead
+ */
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @borrows dom:removeElClass as videojs.removeClass
+ * @deprecated Use videojs.dom.removeClass() instead
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @borrows dom:toggleElClass as videojs.toggleClass
+ * @deprecated Use videojs.dom.toggleClass() instead
+ */
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @borrows dom:setElAttributes as videojs.setAttribute
+ * @deprecated Use videojs.dom.setAttributes() instead
+ */
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @borrows dom:getElAttributes as videojs.getAttributes
+ * @deprecated Use videojs.dom.getAttributes() instead
+ */
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @borrows dom:emptyEl as videojs.emptyEl
+ * @deprecated Use videojs.dom.emptyEl() instead
+ */
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:appendContents as videojs.appendContet
+ * @deprecated Use videojs.dom.appendContent() instead
+ */
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:insertContent as videojs.insertContent
+ * @deprecated Use videojs.dom.insertContent() instead
+ */
+ ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');
+ return Dom[k].apply(null, arguments);
+ };
+ });
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is because in Firefox, if the player is loaded in an iframe with `display:none`,
+ * then `getComputedStyle` returns `null`, so, we do a null-check to make sure
+ * that the player doesn't break in these cases.
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.
+ *
+ * @borrows computed-style:computedStyle as videojs.computedStyle
+ */
+ videojs$1.computedStyle = computedStyle;
+
+ /**
+ * Export the Dom utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.dom = Dom;
+
+ /**
+ * Export the Url utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.url = Url;
+
+ var urlToolkit = createCommonjsModule(function (module, exports) {
+ // see https://tools.ietf.org/html/rfc1808
+
+ /* jshint ignore:start */
+ (function (root) {
+ /* jshint ignore:end */
+
+ var URL_REGEX = /^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/\?#]*\/)*.*?)??(;.*?)?(\?.*?)?(#.*?)?$/;
+ var FIRST_SEGMENT_REGEX = /^([^\/?#]*)(.*)$/;
+ var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g;
+ var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/).*?(?=\/)/g;
+
+ var URLToolkit = { // jshint ignore:line
+ // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
+ // E.g
+ // With opts.alwaysNormalize = false (default, spec compliant)
+ // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
+ // With opts.alwaysNormalize = true (not spec compliant)
+ // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
+ buildAbsoluteURL: function buildAbsoluteURL(baseURL, relativeURL, opts) {
+ opts = opts || {};
+ // remove any remaining space and CRLF
+ baseURL = baseURL.trim();
+ relativeURL = relativeURL.trim();
+ if (!relativeURL) {
+ // 2a) If the embedded URL is entirely empty, it inherits the
+ // entire base URL (i.e., is set equal to the base URL)
+ // and we are done.
+ if (!opts.alwaysNormalize) {
+ return baseURL;
+ }
+ var basePartsForNormalise = URLToolkit.parseURL(baseURL);
+ if (!basePartsForNormalise) {
+ throw new Error('Error trying to parse base URL.');
+ }
+ basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);
+ return URLToolkit.buildURLFromParts(basePartsForNormalise);
+ }
+ var relativeParts = URLToolkit.parseURL(relativeURL);
+ if (!relativeParts) {
+ throw new Error('Error trying to parse relative URL.');
+ }
+ if (relativeParts.scheme) {
+ // 2b) If the embedded URL starts with a scheme name, it is
+ // interpreted as an absolute URL and we are done.
+ if (!opts.alwaysNormalize) {
+ return relativeURL;
+ }
+ relativeParts.path = URLToolkit.normalizePath(relativeParts.path);
+ return URLToolkit.buildURLFromParts(relativeParts);
+ }
+ var baseParts = URLToolkit.parseURL(baseURL);
+ if (!baseParts) {
+ throw new Error('Error trying to parse base URL.');
+ }
+ if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
+ // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
+ // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
+ var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);
+ baseParts.netLoc = pathParts[1];
+ baseParts.path = pathParts[2];
+ }
+ if (baseParts.netLoc && !baseParts.path) {
+ baseParts.path = '/';
+ }
+ var builtParts = {
+ // 2c) Otherwise, the embedded URL inherits the scheme of
+ // the base URL.
+ scheme: baseParts.scheme,
+ netLoc: relativeParts.netLoc,
+ path: null,
+ params: relativeParts.params,
+ query: relativeParts.query,
+ fragment: relativeParts.fragment
+ };
+ if (!relativeParts.netLoc) {
+ // 3) If the embedded URL's <net_loc> is non-empty, we skip to
+ // Step 7. Otherwise, the embedded URL inherits the <net_loc>
+ // (if any) of the base URL.
+ builtParts.netLoc = baseParts.netLoc;
+ // 4) If the embedded URL path is preceded by a slash "/", the
+ // path is not relative and we skip to Step 7.
+ if (relativeParts.path[0] !== '/') {
+ if (!relativeParts.path) {
+ // 5) If the embedded URL path is empty (and not preceded by a
+ // slash), then the embedded URL inherits the base URL path
+ builtParts.path = baseParts.path;
+ // 5a) if the embedded URL's <params> is non-empty, we skip to
+ // step 7; otherwise, it inherits the <params> of the base
+ // URL (if any) and
+ if (!relativeParts.params) {
+ builtParts.params = baseParts.params;
+ // 5b) if the embedded URL's <query> is non-empty, we skip to
+ // step 7; otherwise, it inherits the <query> of the base
+ // URL (if any) and we skip to step 7.
+ if (!relativeParts.query) {
+ builtParts.query = baseParts.query;
+ }
+ }
+ } else {
+ // 6) The last segment of the base URL's path (anything
+ // following the rightmost slash "/", or the entire path if no
+ // slash is present) is removed and the embedded URL's path is
+ // appended in its place.
+ var baseURLPath = baseParts.path;
+ var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;
+ builtParts.path = URLToolkit.normalizePath(newPath);
+ }
+ }
+ }
+ if (builtParts.path === null) {
+ builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;
+ }
+ return URLToolkit.buildURLFromParts(builtParts);
+ },
+ parseURL: function parseURL(url) {
+ var parts = URL_REGEX.exec(url);
+ if (!parts) {
+ return null;
+ }
+ return {
+ scheme: parts[1] || '',
+ netLoc: parts[2] || '',
+ path: parts[3] || '',
+ params: parts[4] || '',
+ query: parts[5] || '',
+ fragment: parts[6] || ''
+ };
+ },
+ normalizePath: function normalizePath(path) {
+ // The following operations are
+ // then applied, in order, to the new path:
+ // 6a) All occurrences of "./", where "." is a complete path
+ // segment, are removed.
+ // 6b) If the path ends with "." as a complete path segment,
+ // that "." is removed.
+ path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');
+ // 6c) All occurrences of "<segment>/../", where <segment> is a
+ // complete path segment not equal to "..", are removed.
+ // Removal of these path segments is performed iteratively,
+ // removing the leftmost matching pattern on each iteration,
+ // until no matching pattern remains.
+ // 6d) If the path ends with "<segment>/..", where <segment> is a
+ // complete path segment not equal to "..", that
+ // "<segment>/.." is removed.
+ while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {} // jshint ignore:line
+ return path.split('').reverse().join('');
+ },
+ buildURLFromParts: function buildURLFromParts(parts) {
+ return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;
+ }
+ };
+
+ /* jshint ignore:start */
+ module.exports = URLToolkit;
+ })(commonjsGlobal);
+ /* jshint ignore:end */
+ });
+
+ var classCallCheck$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var _extends$1 = Object.assign || function (target) {
+ for (var i = 1; i < arguments.length; i++) {
+ var source = arguments[i];
+
+ for (var key in source) {
+ if (Object.prototype.hasOwnProperty.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+
+ return target;
+ };
+
+ var inherits$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === "undefined" ? "undefined" : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream = function () {
+ function Stream() {
+ classCallCheck$1(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+ var i = void 0;
+ var length = void 0;
+ var args = void 0;
+
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = Array.prototype.slice.call(arguments, 1);
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file m3u8/line-stream.js
+ */
+ /**
+ * A stream that buffers string input and generates a `data` event for each
+ * line.
+ *
+ * @class LineStream
+ * @extends Stream
+ */
+
+ var LineStream = function (_Stream) {
+ inherits$1(LineStream, _Stream);
+
+ function LineStream() {
+ classCallCheck$1(this, LineStream);
+
+ var _this = possibleConstructorReturn$1(this, _Stream.call(this));
+
+ _this.buffer = '';
+ return _this;
+ }
+
+ /**
+ * Add new data to be parsed.
+ *
+ * @param {String} data the text to process
+ */
+
+ LineStream.prototype.push = function push(data) {
+ var nextNewline = void 0;
+
+ this.buffer += data;
+ nextNewline = this.buffer.indexOf('\n');
+
+ for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\n')) {
+ this.trigger('data', this.buffer.substring(0, nextNewline));
+ this.buffer = this.buffer.substring(nextNewline + 1);
+ }
+ };
+
+ return LineStream;
+ }(Stream);
+
+ /**
+ * @file m3u8/parse-stream.js
+ */
+ /**
+ * "forgiving" attribute list psuedo-grammar:
+ * attributes -> keyvalue (',' keyvalue)*
+ * keyvalue -> key '=' value
+ * key -> [^=]*
+ * value -> '"' [^"]* '"' | [^,]*
+ */
+ var attributeSeparator = function attributeSeparator() {
+ var key = '[^=]*';
+ var value = '"[^"]*"|[^,]*';
+ var keyvalue = '(?:' + key + ')=(?:' + value + ')';
+
+ return new RegExp('(?:^|,)(' + keyvalue + ')');
+ };
+
+ /**
+ * Parse attributes from a line given the seperator
+ *
+ * @param {String} attributes the attibute line to parse
+ */
+ var parseAttributes = function parseAttributes(attributes) {
+ // split the string using attributes as the separator
+ var attrs = attributes.split(attributeSeparator());
+ var result = {};
+ var i = attrs.length;
+ var attr = void 0;
+
+ while (i--) {
+ // filter out unmatched portions of the string
+ if (attrs[i] === '') {
+ continue;
+ }
+
+ // split the key and value
+ attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1);
+ // trim whitespace and remove optional quotes around the value
+ attr[0] = attr[0].replace(/^\s+|\s+$/g, '');
+ attr[1] = attr[1].replace(/^\s+|\s+$/g, '');
+ attr[1] = attr[1].replace(/^['"](.*)['"]$/g, '$1');
+ result[attr[0]] = attr[1];
+ }
+ return result;
+ };
+
+ /**
+ * A line-level M3U8 parser event stream. It expects to receive input one
+ * line at a time and performs a context-free parse of its contents. A stream
+ * interpretation of a manifest can be useful if the manifest is expected to
+ * be too large to fit comfortably into memory or the entirety of the input
+ * is not immediately available. Otherwise, it's probably much easier to work
+ * with a regular `Parser` object.
+ *
+ * Produces `data` events with an object that captures the parser's
+ * interpretation of the input. That object has a property `tag` that is one
+ * of `uri`, `comment`, or `tag`. URIs only have a single additional
+ * property, `line`, which captures the entirety of the input without
+ * interpretation. Comments similarly have a single additional property
+ * `text` which is the input without the leading `#`.
+ *
+ * Tags always have a property `tagType` which is the lower-cased version of
+ * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,
+ * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized
+ * tags are given the tag type `unknown` and a single additional property
+ * `data` with the remainder of the input.
+ *
+ * @class ParseStream
+ * @extends Stream
+ */
+
+ var ParseStream = function (_Stream) {
+ inherits$1(ParseStream, _Stream);
+
+ function ParseStream() {
+ classCallCheck$1(this, ParseStream);
+
+ var _this = possibleConstructorReturn$1(this, _Stream.call(this));
+
+ _this.customParsers = [];
+ return _this;
+ }
+
+ /**
+ * Parses an additional line of input.
+ *
+ * @param {String} line a single line of an M3U8 file to parse
+ */
+
+ ParseStream.prototype.push = function push(line) {
+ var match = void 0;
+ var event = void 0;
+
+ // strip whitespace
+ line = line.replace(/^[\u0000\s]+|[\u0000\s]+$/g, '');
+ if (line.length === 0) {
+ // ignore empty lines
+ return;
+ }
+
+ // URIs
+ if (line[0] !== '#') {
+ this.trigger('data', {
+ type: 'uri',
+ uri: line
+ });
+ return;
+ }
+
+ for (var i = 0; i < this.customParsers.length; i++) {
+ if (this.customParsers[i].call(this, line)) {
+ return;
+ }
+ }
+
+ // Comments
+ if (line.indexOf('#EXT') !== 0) {
+ this.trigger('data', {
+ type: 'comment',
+ text: line.slice(1)
+ });
+ return;
+ }
+
+ // strip off any carriage returns here so the regex matching
+ // doesn't have to account for them.
+ line = line.replace('\r', '');
+
+ // Tags
+ match = /^#EXTM3U/.exec(line);
+ if (match) {
+ this.trigger('data', {
+ type: 'tag',
+ tagType: 'm3u'
+ });
+ return;
+ }
+ match = /^#EXTINF:?([0-9\.]*)?,?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'inf'
+ };
+ if (match[1]) {
+ event.duration = parseFloat(match[1]);
+ }
+ if (match[2]) {
+ event.title = match[2];
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'targetduration'
+ };
+ if (match[1]) {
+ event.duration = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#ZEN-TOTAL-DURATION:?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'totalduration'
+ };
+ if (match[1]) {
+ event.duration = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'version'
+ };
+ if (match[1]) {
+ event.version = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-MEDIA-SEQUENCE:?(\-?[0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'media-sequence'
+ };
+ if (match[1]) {
+ event.number = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\-?[0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'discontinuity-sequence'
+ };
+ if (match[1]) {
+ event.number = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'playlist-type'
+ };
+ if (match[1]) {
+ event.playlistType = match[1];
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-BYTERANGE:?([0-9.]*)?@?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'byterange'
+ };
+ if (match[1]) {
+ event.length = parseInt(match[1], 10);
+ }
+ if (match[2]) {
+ event.offset = parseInt(match[2], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'allow-cache'
+ };
+ if (match[1]) {
+ event.allowed = !/NO/.test(match[1]);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-MAP:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'map'
+ };
+
+ if (match[1]) {
+ var attributes = parseAttributes(match[1]);
+
+ if (attributes.URI) {
+ event.uri = attributes.URI;
+ }
+ if (attributes.BYTERANGE) {
+ var _attributes$BYTERANGE = attributes.BYTERANGE.split('@'),
+ length = _attributes$BYTERANGE[0],
+ offset = _attributes$BYTERANGE[1];
+
+ event.byterange = {};
+ if (length) {
+ event.byterange.length = parseInt(length, 10);
+ }
+ if (offset) {
+ event.byterange.offset = parseInt(offset, 10);
+ }
+ }
+ }
+
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'stream-inf'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+
+ if (event.attributes.RESOLUTION) {
+ var split = event.attributes.RESOLUTION.split('x');
+ var resolution = {};
+
+ if (split[0]) {
+ resolution.width = parseInt(split[0], 10);
+ }
+ if (split[1]) {
+ resolution.height = parseInt(split[1], 10);
+ }
+ event.attributes.RESOLUTION = resolution;
+ }
+ if (event.attributes.BANDWIDTH) {
+ event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);
+ }
+ if (event.attributes['PROGRAM-ID']) {
+ event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);
+ }
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-MEDIA:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'media'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-ENDLIST/.exec(line);
+ if (match) {
+ this.trigger('data', {
+ type: 'tag',
+ tagType: 'endlist'
+ });
+ return;
+ }
+ match = /^#EXT-X-DISCONTINUITY/.exec(line);
+ if (match) {
+ this.trigger('data', {
+ type: 'tag',
+ tagType: 'discontinuity'
+ });
+ return;
+ }
+ match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'program-date-time'
+ };
+ if (match[1]) {
+ event.dateTimeString = match[1];
+ event.dateTimeObject = new Date(match[1]);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-KEY:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'key'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+ // parse the IV string into a Uint32Array
+ if (event.attributes.IV) {
+ if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {
+ event.attributes.IV = event.attributes.IV.substring(2);
+ }
+
+ event.attributes.IV = event.attributes.IV.match(/.{8}/g);
+ event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);
+ event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);
+ event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);
+ event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);
+ event.attributes.IV = new Uint32Array(event.attributes.IV);
+ }
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-START:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'start'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+
+ event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);
+ event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'cue-out-cont'
+ };
+ if (match[1]) {
+ event.data = match[1];
+ } else {
+ event.data = '';
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'cue-out'
+ };
+ if (match[1]) {
+ event.data = match[1];
+ } else {
+ event.data = '';
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'cue-in'
+ };
+ if (match[1]) {
+ event.data = match[1];
+ } else {
+ event.data = '';
+ }
+ this.trigger('data', event);
+ return;
+ }
+
+ // unknown tag type
+ this.trigger('data', {
+ type: 'tag',
+ data: line.slice(4)
+ });
+ };
+
+ /**
+ * Add a parser for custom headers
+ *
+ * @param {Object} options a map of options for the added parser
+ * @param {RegExp} options.expression a regular expression to match the custom header
+ * @param {string} options.customType the custom type to register to the output
+ * @param {Function} [options.dataParser] function to parse the line into an object
+ * @param {boolean} [options.segment] should tag data be attached to the segment object
+ */
+
+ ParseStream.prototype.addParser = function addParser(_ref) {
+ var _this2 = this;
+
+ var expression = _ref.expression,
+ customType = _ref.customType,
+ dataParser = _ref.dataParser,
+ segment = _ref.segment;
+
+ if (typeof dataParser !== 'function') {
+ dataParser = function dataParser(line) {
+ return line;
+ };
+ }
+ this.customParsers.push(function (line) {
+ var match = expression.exec(line);
+
+ if (match) {
+ _this2.trigger('data', {
+ type: 'custom',
+ data: dataParser(line),
+ customType: customType,
+ segment: segment
+ });
+ return true;
+ }
+ });
+ };
+
+ return ParseStream;
+ }(Stream);
+
+ /**
+ * @file m3u8/parser.js
+ */
+ /**
+ * A parser for M3U8 files. The current interpretation of the input is
+ * exposed as a property `manifest` on parser objects. It's just two lines to
+ * create and parse a manifest once you have the contents available as a string:
+ *
+ * ```js
+ * var parser = new m3u8.Parser();
+ * parser.push(xhr.responseText);
+ * ```
+ *
+ * New input can later be applied to update the manifest object by calling
+ * `push` again.
+ *
+ * The parser attempts to create a usable manifest object even if the
+ * underlying input is somewhat nonsensical. It emits `info` and `warning`
+ * events during the parse if it encounters input that seems invalid or
+ * requires some property of the manifest object to be defaulted.
+ *
+ * @class Parser
+ * @extends Stream
+ */
+
+ var Parser = function (_Stream) {
+ inherits$1(Parser, _Stream);
+
+ function Parser() {
+ classCallCheck$1(this, Parser);
+
+ var _this = possibleConstructorReturn$1(this, _Stream.call(this));
+
+ _this.lineStream = new LineStream();
+ _this.parseStream = new ParseStream();
+ _this.lineStream.pipe(_this.parseStream);
+
+ /* eslint-disable consistent-this */
+ var self = _this;
+ /* eslint-enable consistent-this */
+ var uris = [];
+ var currentUri = {};
+ // if specified, the active EXT-X-MAP definition
+ var currentMap = void 0;
+ // if specified, the active decryption key
+ var _key = void 0;
+ var noop = function noop() {};
+ var defaultMediaGroups = {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ };
+ // group segments into numbered timelines delineated by discontinuities
+ var currentTimeline = 0;
+
+ // the manifest is empty until the parse stream begins delivering data
+ _this.manifest = {
+ allowCache: true,
+ discontinuityStarts: [],
+ segments: []
+ };
+
+ // update the manifest with the m3u8 entry from the parse stream
+ _this.parseStream.on('data', function (entry) {
+ var mediaGroup = void 0;
+ var rendition = void 0;
+
+ ({
+ tag: function tag() {
+ // switch based on the tag type
+ (({
+ 'allow-cache': function allowCache() {
+ this.manifest.allowCache = entry.allowed;
+ if (!('allowed' in entry)) {
+ this.trigger('info', {
+ message: 'defaulting allowCache to YES'
+ });
+ this.manifest.allowCache = true;
+ }
+ },
+ byterange: function byterange() {
+ var byterange = {};
+
+ if ('length' in entry) {
+ currentUri.byterange = byterange;
+ byterange.length = entry.length;
+
+ if (!('offset' in entry)) {
+ this.trigger('info', {
+ message: 'defaulting offset to zero'
+ });
+ entry.offset = 0;
+ }
+ }
+ if ('offset' in entry) {
+ currentUri.byterange = byterange;
+ byterange.offset = entry.offset;
+ }
+ },
+ endlist: function endlist() {
+ this.manifest.endList = true;
+ },
+ inf: function inf() {
+ if (!('mediaSequence' in this.manifest)) {
+ this.manifest.mediaSequence = 0;
+ this.trigger('info', {
+ message: 'defaulting media sequence to zero'
+ });
+ }
+ if (!('discontinuitySequence' in this.manifest)) {
+ this.manifest.discontinuitySequence = 0;
+ this.trigger('info', {
+ message: 'defaulting discontinuity sequence to zero'
+ });
+ }
+ if (entry.duration > 0) {
+ currentUri.duration = entry.duration;
+ }
+
+ if (entry.duration === 0) {
+ currentUri.duration = 0.01;
+ this.trigger('info', {
+ message: 'updating zero segment duration to a small value'
+ });
+ }
+
+ this.manifest.segments = uris;
+ },
+ key: function key() {
+ if (!entry.attributes) {
+ this.trigger('warn', {
+ message: 'ignoring key declaration without attribute list'
+ });
+ return;
+ }
+ // clear the active encryption key
+ if (entry.attributes.METHOD === 'NONE') {
+ _key = null;
+ return;
+ }
+ if (!entry.attributes.URI) {
+ this.trigger('warn', {
+ message: 'ignoring key declaration without URI'
+ });
+ return;
+ }
+ if (!entry.attributes.METHOD) {
+ this.trigger('warn', {
+ message: 'defaulting key method to AES-128'
+ });
+ }
+
+ // setup an encryption key for upcoming segments
+ _key = {
+ method: entry.attributes.METHOD || 'AES-128',
+ uri: entry.attributes.URI
+ };
+
+ if (typeof entry.attributes.IV !== 'undefined') {
+ _key.iv = entry.attributes.IV;
+ }
+ },
+ 'media-sequence': function mediaSequence() {
+ if (!isFinite(entry.number)) {
+ this.trigger('warn', {
+ message: 'ignoring invalid media sequence: ' + entry.number
+ });
+ return;
+ }
+ this.manifest.mediaSequence = entry.number;
+ },
+ 'discontinuity-sequence': function discontinuitySequence() {
+ if (!isFinite(entry.number)) {
+ this.trigger('warn', {
+ message: 'ignoring invalid discontinuity sequence: ' + entry.number
+ });
+ return;
+ }
+ this.manifest.discontinuitySequence = entry.number;
+ currentTimeline = entry.number;
+ },
+ 'playlist-type': function playlistType() {
+ if (!/VOD|EVENT/.test(entry.playlistType)) {
+ this.trigger('warn', {
+ message: 'ignoring unknown playlist type: ' + entry.playlist
+ });
+ return;
+ }
+ this.manifest.playlistType = entry.playlistType;
+ },
+ map: function map() {
+ currentMap = {};
+ if (entry.uri) {
+ currentMap.uri = entry.uri;
+ }
+ if (entry.byterange) {
+ currentMap.byterange = entry.byterange;
+ }
+ },
+ 'stream-inf': function streamInf() {
+ this.manifest.playlists = uris;
+ this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
+
+ if (!entry.attributes) {
+ this.trigger('warn', {
+ message: 'ignoring empty stream-inf attributes'
+ });
+ return;
+ }
+
+ if (!currentUri.attributes) {
+ currentUri.attributes = {};
+ }
+ _extends$1(currentUri.attributes, entry.attributes);
+ },
+ media: function media() {
+ this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
+
+ if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {
+ this.trigger('warn', {
+ message: 'ignoring incomplete or missing media group'
+ });
+ return;
+ }
+
+ // find the media group, creating defaults as necessary
+ var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];
+
+ mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};
+ mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']];
+
+ // collect the rendition metadata
+ rendition = {
+ 'default': /yes/i.test(entry.attributes.DEFAULT)
+ };
+ if (rendition['default']) {
+ rendition.autoselect = true;
+ } else {
+ rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);
+ }
+ if (entry.attributes.LANGUAGE) {
+ rendition.language = entry.attributes.LANGUAGE;
+ }
+ if (entry.attributes.URI) {
+ rendition.uri = entry.attributes.URI;
+ }
+ if (entry.attributes['INSTREAM-ID']) {
+ rendition.instreamId = entry.attributes['INSTREAM-ID'];
+ }
+ if (entry.attributes.CHARACTERISTICS) {
+ rendition.characteristics = entry.attributes.CHARACTERISTICS;
+ }
+ if (entry.attributes.FORCED) {
+ rendition.forced = /yes/i.test(entry.attributes.FORCED);
+ }
+
+ // insert the new rendition
+ mediaGroup[entry.attributes.NAME] = rendition;
+ },
+ discontinuity: function discontinuity() {
+ currentTimeline += 1;
+ currentUri.discontinuity = true;
+ this.manifest.discontinuityStarts.push(uris.length);
+ },
+ 'program-date-time': function programDateTime() {
+ if (typeof this.manifest.dateTimeString === 'undefined') {
+ // PROGRAM-DATE-TIME is a media-segment tag, but for backwards
+ // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag
+ // to the manifest object
+ // TODO: Consider removing this in future major version
+ this.manifest.dateTimeString = entry.dateTimeString;
+ this.manifest.dateTimeObject = entry.dateTimeObject;
+ }
+
+ currentUri.dateTimeString = entry.dateTimeString;
+ currentUri.dateTimeObject = entry.dateTimeObject;
+ },
+ targetduration: function targetduration() {
+ if (!isFinite(entry.duration) || entry.duration < 0) {
+ this.trigger('warn', {
+ message: 'ignoring invalid target duration: ' + entry.duration
+ });
+ return;
+ }
+ this.manifest.targetDuration = entry.duration;
+ },
+ totalduration: function totalduration() {
+ if (!isFinite(entry.duration) || entry.duration < 0) {
+ this.trigger('warn', {
+ message: 'ignoring invalid total duration: ' + entry.duration
+ });
+ return;
+ }
+ this.manifest.totalDuration = entry.duration;
+ },
+ start: function start() {
+ if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {
+ this.trigger('warn', {
+ message: 'ignoring start declaration without appropriate attribute list'
+ });
+ return;
+ }
+ this.manifest.start = {
+ timeOffset: entry.attributes['TIME-OFFSET'],
+ precise: entry.attributes.PRECISE
+ };
+ },
+ 'cue-out': function cueOut() {
+ currentUri.cueOut = entry.data;
+ },
+ 'cue-out-cont': function cueOutCont() {
+ currentUri.cueOutCont = entry.data;
+ },
+ 'cue-in': function cueIn() {
+ currentUri.cueIn = entry.data;
+ }
+ })[entry.tagType] || noop).call(self);
+ },
+ uri: function uri() {
+ currentUri.uri = entry.uri;
+ uris.push(currentUri);
+
+ // if no explicit duration was declared, use the target duration
+ if (this.manifest.targetDuration && !('duration' in currentUri)) {
+ this.trigger('warn', {
+ message: 'defaulting segment duration to the target duration'
+ });
+ currentUri.duration = this.manifest.targetDuration;
+ }
+ // annotate with encryption information, if necessary
+ if (_key) {
+ currentUri.key = _key;
+ }
+ currentUri.timeline = currentTimeline;
+ // annotate with initialization segment information, if necessary
+ if (currentMap) {
+ currentUri.map = currentMap;
+ }
+
+ // prepare for the next URI
+ currentUri = {};
+ },
+ comment: function comment() {
+ // comments are not important for playback
+ },
+ custom: function custom() {
+ // if this is segment-level data attach the output to the segment
+ if (entry.segment) {
+ currentUri.custom = currentUri.custom || {};
+ currentUri.custom[entry.customType] = entry.data;
+ // if this is manifest-level data attach to the top level manifest object
+ } else {
+ this.manifest.custom = this.manifest.custom || {};
+ this.manifest.custom[entry.customType] = entry.data;
+ }
+ }
+ })[entry.type].call(self);
+ });
+ return _this;
+ }
+
+ /**
+ * Parse the input string and update the manifest object.
+ *
+ * @param {String} chunk a potentially incomplete portion of the manifest
+ */
+
+ Parser.prototype.push = function push(chunk) {
+ this.lineStream.push(chunk);
+ };
+
+ /**
+ * Flush any remaining input. This can be handy if the last line of an M3U8
+ * manifest did not contain a trailing newline but the file has been
+ * completely received.
+ */
+
+ Parser.prototype.end = function end() {
+ // flush any buffered input
+ this.lineStream.push('\n');
+ };
+ /**
+ * Add an additional parser for non-standard tags
+ *
+ * @param {Object} options a map of options for the added parser
+ * @param {RegExp} options.expression a regular expression to match the custom header
+ * @param {string} options.type the type to register to the output
+ * @param {Function} [options.dataParser] function to parse the line into an object
+ * @param {boolean} [options.segment] should tag data be attached to the segment object
+ */
+
+ Parser.prototype.addParser = function addParser(options) {
+ this.parseStream.addParser(options);
+ };
+
+ return Parser;
+ }(Stream);
+
+ /**
+ * mpd-parser
+ * @version 0.6.1
+ * @copyright 2018 Brightcove, Inc
+ * @license Apache-2.0
+ */
+
+ var formatAudioPlaylist = function formatAudioPlaylist(_ref) {
+ var _attributes;
+
+ var attributes = _ref.attributes,
+ segments = _ref.segments;
+
+ var playlist = {
+ attributes: (_attributes = {
+ NAME: attributes.id,
+ BANDWIDTH: attributes.bandwidth,
+ CODECS: attributes.codecs
+ }, _attributes['PROGRAM-ID'] = 1, _attributes),
+ uri: '',
+ endList: (attributes.type || 'static') === 'static',
+ timeline: attributes.periodIndex,
+ resolvedUri: '',
+ targetDuration: attributes.duration,
+ segments: segments,
+ mediaSequence: segments.length ? segments[0].number : 1
+ };
+
+ if (attributes.contentProtection) {
+ playlist.contentProtection = attributes.contentProtection;
+ }
+
+ return playlist;
+ };
+
+ var formatVttPlaylist = function formatVttPlaylist(_ref2) {
+ var _attributes2;
+
+ var attributes = _ref2.attributes,
+ segments = _ref2.segments;
+
+ if (typeof segments === 'undefined') {
+ // vtt tracks may use single file in BaseURL
+ segments = [{
+ uri: attributes.baseUrl,
+ timeline: attributes.periodIndex,
+ resolvedUri: attributes.baseUrl || '',
+ duration: attributes.sourceDuration,
+ number: 0
+ }];
+ // targetDuration should be the same duration as the only segment
+ attributes.duration = attributes.sourceDuration;
+ }
+ return {
+ attributes: (_attributes2 = {
+ NAME: attributes.id,
+ BANDWIDTH: attributes.bandwidth
+ }, _attributes2['PROGRAM-ID'] = 1, _attributes2),
+ uri: '',
+ endList: (attributes.type || 'static') === 'static',
+ timeline: attributes.periodIndex,
+ resolvedUri: attributes.baseUrl || '',
+ targetDuration: attributes.duration,
+ segments: segments,
+ mediaSequence: segments.length ? segments[0].number : 1
+ };
+ };
+
+ var organizeAudioPlaylists = function organizeAudioPlaylists(playlists) {
+ return playlists.reduce(function (a, playlist) {
+ var role = playlist.attributes.role && playlist.attributes.role.value || 'main';
+ var language = playlist.attributes.lang || '';
+
+ var label = 'main';
+
+ if (language) {
+ label = playlist.attributes.lang + ' (' + role + ')';
+ }
+
+ // skip if we already have the highest quality audio for a language
+ if (a[label] && a[label].playlists[0].attributes.BANDWIDTH > playlist.attributes.bandwidth) {
+ return a;
+ }
+
+ a[label] = {
+ language: language,
+ autoselect: true,
+ 'default': role === 'main',
+ playlists: [formatAudioPlaylist(playlist)],
+ uri: ''
+ };
+
+ return a;
+ }, {});
+ };
+
+ var organizeVttPlaylists = function organizeVttPlaylists(playlists) {
+ return playlists.reduce(function (a, playlist) {
+ var label = playlist.attributes.lang || 'text';
+
+ // skip if we already have subtitles
+ if (a[label]) {
+ return a;
+ }
+
+ a[label] = {
+ language: label,
+ 'default': false,
+ autoselect: false,
+ playlists: [formatVttPlaylist(playlist)],
+ uri: ''
+ };
+
+ return a;
+ }, {});
+ };
+
+ var formatVideoPlaylist = function formatVideoPlaylist(_ref3) {
+ var _attributes3;
+
+ var attributes = _ref3.attributes,
+ segments = _ref3.segments;
+
+ var playlist = {
+ attributes: (_attributes3 = {
+ NAME: attributes.id,
+ AUDIO: 'audio',
+ SUBTITLES: 'subs',
+ RESOLUTION: {
+ width: attributes.width,
+ height: attributes.height
+ },
+ CODECS: attributes.codecs,
+ BANDWIDTH: attributes.bandwidth
+ }, _attributes3['PROGRAM-ID'] = 1, _attributes3),
+ uri: '',
+ endList: (attributes.type || 'static') === 'static',
+ timeline: attributes.periodIndex,
+ resolvedUri: '',
+ targetDuration: attributes.duration,
+ segments: segments,
+ mediaSequence: segments.length ? segments[0].number : 1
+ };
+
+ if (attributes.contentProtection) {
+ playlist.contentProtection = attributes.contentProtection;
+ }
+
+ return playlist;
+ };
+
+ var toM3u8 = function toM3u8(dashPlaylists) {
+ var _mediaGroups;
+
+ if (!dashPlaylists.length) {
+ return {};
+ }
+
+ // grab all master attributes
+ var _dashPlaylists$0$attr = dashPlaylists[0].attributes,
+ duration = _dashPlaylists$0$attr.sourceDuration,
+ _dashPlaylists$0$attr2 = _dashPlaylists$0$attr.minimumUpdatePeriod,
+ minimumUpdatePeriod = _dashPlaylists$0$attr2 === undefined ? 0 : _dashPlaylists$0$attr2;
+
+ var videoOnly = function videoOnly(_ref4) {
+ var attributes = _ref4.attributes;
+ return attributes.mimeType === 'video/mp4' || attributes.contentType === 'video';
+ };
+ var audioOnly = function audioOnly(_ref5) {
+ var attributes = _ref5.attributes;
+ return attributes.mimeType === 'audio/mp4' || attributes.contentType === 'audio';
+ };
+ var vttOnly = function vttOnly(_ref6) {
+ var attributes = _ref6.attributes;
+ return attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';
+ };
+
+ var videoPlaylists = dashPlaylists.filter(videoOnly).map(formatVideoPlaylist);
+ var audioPlaylists = dashPlaylists.filter(audioOnly);
+ var vttPlaylists = dashPlaylists.filter(vttOnly);
+
+ var master = {
+ allowCache: true,
+ discontinuityStarts: [],
+ segments: [],
+ endList: true,
+ mediaGroups: (_mediaGroups = {
+ AUDIO: {},
+ VIDEO: {}
+ }, _mediaGroups['CLOSED-CAPTIONS'] = {}, _mediaGroups.SUBTITLES = {}, _mediaGroups),
+ uri: '',
+ duration: duration,
+ playlists: videoPlaylists,
+ minimumUpdatePeriod: minimumUpdatePeriod * 1000
+ };
+
+ if (audioPlaylists.length) {
+ master.mediaGroups.AUDIO.audio = organizeAudioPlaylists(audioPlaylists);
+ }
+
+ if (vttPlaylists.length) {
+ master.mediaGroups.SUBTITLES.subs = organizeVttPlaylists(vttPlaylists);
+ }
+
+ return master;
+ };
+
+ var _typeof$1 = typeof Symbol === "function" && _typeof(Symbol.iterator) === "symbol" ? function (obj) {
+ return typeof obj === 'undefined' ? 'undefined' : _typeof(obj);
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj === 'undefined' ? 'undefined' : _typeof(obj);
+ };
+
+ var isObject$1 = function isObject(obj) {
+ return !!obj && (typeof obj === 'undefined' ? 'undefined' : _typeof$1(obj)) === 'object';
+ };
+
+ var merge = function merge() {
+ for (var _len = arguments.length, objects = Array(_len), _key = 0; _key < _len; _key++) {
+ objects[_key] = arguments[_key];
+ }
+
+ return objects.reduce(function (result, source) {
+
+ Object.keys(source).forEach(function (key) {
+
+ if (Array.isArray(result[key]) && Array.isArray(source[key])) {
+ result[key] = result[key].concat(source[key]);
+ } else if (isObject$1(result[key]) && isObject$1(source[key])) {
+ result[key] = merge(result[key], source[key]);
+ } else {
+ result[key] = source[key];
+ }
+ });
+ return result;
+ }, {});
+ };
+
+ var resolveUrl = function resolveUrl(baseUrl, relativeUrl) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeUrl)) {
+ return relativeUrl;
+ }
+
+ // if the base URL is relative then combine with the current location
+ if (!/\/\//i.test(baseUrl)) {
+ baseUrl = urlToolkit.buildAbsoluteURL(window_1.location.href, baseUrl);
+ }
+
+ return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
+ };
+
+ /**
+ * @typedef {Object} SingleUri
+ * @property {string} uri - relative location of segment
+ * @property {string} resolvedUri - resolved location of segment
+ * @property {Object} byterange - Object containing information on how to make byte range
+ * requests following byte-range-spec per RFC2616.
+ * @property {String} byterange.length - length of range request
+ * @property {String} byterange.offset - byte offset of range request
+ *
+ * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1
+ */
+
+ /**
+ * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object
+ * that conforms to how m3u8-parser is structured
+ *
+ * @see https://github.com/videojs/m3u8-parser
+ *
+ * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes
+ * @param {string} source - source url for segment
+ * @param {string} range - optional range used for range calls, follows
+ * @return {SingleUri} full segment information transformed into a format similar
+ * to m3u8-parser
+ */
+ var urlTypeToSegment = function urlTypeToSegment(_ref) {
+ var _ref$baseUrl = _ref.baseUrl,
+ baseUrl = _ref$baseUrl === undefined ? '' : _ref$baseUrl,
+ _ref$source = _ref.source,
+ source = _ref$source === undefined ? '' : _ref$source,
+ _ref$range = _ref.range,
+ range = _ref$range === undefined ? '' : _ref$range;
+
+ var init = {
+ uri: source,
+ resolvedUri: resolveUrl(baseUrl || '', source)
+ };
+
+ if (range) {
+ var ranges = range.split('-');
+ var startRange = parseInt(ranges[0], 10);
+ var endRange = parseInt(ranges[1], 10);
+
+ init.byterange = {
+ length: endRange - startRange,
+ offset: startRange
+ };
+ }
+
+ return init;
+ };
+
+ /**
+ * Calculates the R (repetition) value for a live stream (for the final segment
+ * in a manifest where the r value is negative 1)
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {number} time
+ * current time (typically the total time up until the final segment)
+ * @param {number} duration
+ * duration property for the given <S />
+ *
+ * @return {number}
+ * R value to reach the end of the given period
+ */
+ var getLiveRValue = function getLiveRValue(attributes, time, duration) {
+ var NOW = attributes.NOW,
+ clientOffset = attributes.clientOffset,
+ availabilityStartTime = attributes.availabilityStartTime,
+ _attributes$timescale = attributes.timescale,
+ timescale = _attributes$timescale === undefined ? 1 : _attributes$timescale,
+ _attributes$start = attributes.start,
+ start = _attributes$start === undefined ? 0 : _attributes$start,
+ _attributes$minimumUp = attributes.minimumUpdatePeriod,
+ minimumUpdatePeriod = _attributes$minimumUp === undefined ? 0 : _attributes$minimumUp;
+
+ var now = (NOW + clientOffset) / 1000;
+ var periodStartWC = availabilityStartTime + start;
+ var periodEndWC = now + minimumUpdatePeriod;
+ var periodDuration = periodEndWC - periodStartWC;
+
+ return Math.ceil((periodDuration * timescale - time) / duration);
+ };
+
+ /**
+ * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment
+ * timing and duration
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ *
+ * @return {{number: number, duration: number, time: number, timeline: number}[]}
+ * List of Objects with segment timing and duration info
+ */
+ var parseByTimeline = function parseByTimeline(attributes, segmentTimeline) {
+ var _attributes$type = attributes.type,
+ type = _attributes$type === undefined ? 'static' : _attributes$type,
+ _attributes$minimumUp2 = attributes.minimumUpdatePeriod,
+ minimumUpdatePeriod = _attributes$minimumUp2 === undefined ? 0 : _attributes$minimumUp2,
+ _attributes$media = attributes.media,
+ media = _attributes$media === undefined ? '' : _attributes$media,
+ sourceDuration = attributes.sourceDuration,
+ _attributes$timescale2 = attributes.timescale,
+ timescale = _attributes$timescale2 === undefined ? 1 : _attributes$timescale2,
+ _attributes$startNumb = attributes.startNumber,
+ startNumber = _attributes$startNumb === undefined ? 1 : _attributes$startNumb,
+ timeline = attributes.periodIndex;
+
+ var segments = [];
+ var time = -1;
+
+ for (var sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {
+ var S = segmentTimeline[sIndex];
+ var duration = S.d;
+ var repeat = S.r || 0;
+ var segmentTime = S.t || 0;
+
+ if (time < 0) {
+ // first segment
+ time = segmentTime;
+ }
+
+ if (segmentTime && segmentTime > time) {
+ // discontinuity
+
+ // TODO: How to handle this type of discontinuity
+ // timeline++ here would treat it like HLS discontuity and content would
+ // get appended without gap
+ // E.G.
+ // <S t="0" d="1" />
+ // <S d="1" />
+ // <S d="1" />
+ // <S t="5" d="1" />
+ // would have $Time$ values of [0, 1, 2, 5]
+ // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)
+ // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)
+ // does the value of sourceDuration consider this when calculating arbitrary
+ // negative @r repeat value?
+ // E.G. Same elements as above with this added at the end
+ // <S d="1" r="-1" />
+ // with a sourceDuration of 10
+ // Would the 2 gaps be included in the time duration calculations resulting in
+ // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments
+ // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?
+
+ time = segmentTime;
+ }
+
+ var count = void 0;
+
+ if (repeat < 0) {
+ var nextS = sIndex + 1;
+
+ if (nextS === segmentTimeline.length) {
+ // last segment
+ if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {
+ count = getLiveRValue(attributes, time, duration);
+ } else {
+ // TODO: This may be incorrect depending on conclusion of TODO above
+ count = (sourceDuration * timescale - time) / duration;
+ }
+ } else {
+ count = (segmentTimeline[nextS].t - time) / duration;
+ }
+ } else {
+ count = repeat + 1;
+ }
+
+ var end = startNumber + segments.length + count;
+ var number = startNumber + segments.length;
+
+ while (number < end) {
+ segments.push({ number: number, duration: duration / timescale, time: time, timeline: timeline });
+ time += duration;
+ number++;
+ }
+ }
+
+ return segments;
+ };
+
+ var range = function range(start, end) {
+ var result = [];
+
+ for (var i = start; i < end; i++) {
+ result.push(i);
+ }
+
+ return result;
+ };
+
+ var flatten = function flatten(lists) {
+ return lists.reduce(function (x, y) {
+ return x.concat(y);
+ }, []);
+ };
+
+ var from = function from(list) {
+ if (!list.length) {
+ return [];
+ }
+
+ var result = [];
+
+ for (var i = 0; i < list.length; i++) {
+ result.push(list[i]);
+ }
+
+ return result;
+ };
+
+ /**
+ * Functions for calculating the range of available segments in static and dynamic
+ * manifests.
+ */
+ var segmentRange = {
+ /**
+ * Returns the entire range of available segments for a static MPD
+ *
+ * @param {Object} attributes
+ * Inheritied MPD attributes
+ * @return {{ start: number, end: number }}
+ * The start and end numbers for available segments
+ */
+ 'static': function _static(attributes) {
+ var duration = attributes.duration,
+ _attributes$timescale = attributes.timescale,
+ timescale = _attributes$timescale === undefined ? 1 : _attributes$timescale,
+ sourceDuration = attributes.sourceDuration;
+
+ return {
+ start: 0,
+ end: Math.ceil(sourceDuration / (duration / timescale))
+ };
+ },
+
+ /**
+ * Returns the current live window range of available segments for a dynamic MPD
+ *
+ * @param {Object} attributes
+ * Inheritied MPD attributes
+ * @return {{ start: number, end: number }}
+ * The start and end numbers for available segments
+ */
+ dynamic: function dynamic(attributes) {
+ var NOW = attributes.NOW,
+ clientOffset = attributes.clientOffset,
+ availabilityStartTime = attributes.availabilityStartTime,
+ _attributes$timescale2 = attributes.timescale,
+ timescale = _attributes$timescale2 === undefined ? 1 : _attributes$timescale2,
+ duration = attributes.duration,
+ _attributes$start = attributes.start,
+ start = _attributes$start === undefined ? 0 : _attributes$start,
+ _attributes$minimumUp = attributes.minimumUpdatePeriod,
+ minimumUpdatePeriod = _attributes$minimumUp === undefined ? 0 : _attributes$minimumUp,
+ _attributes$timeShift = attributes.timeShiftBufferDepth,
+ timeShiftBufferDepth = _attributes$timeShift === undefined ? Infinity : _attributes$timeShift;
+
+ var now = (NOW + clientOffset) / 1000;
+ var periodStartWC = availabilityStartTime + start;
+ var periodEndWC = now + minimumUpdatePeriod;
+ var periodDuration = periodEndWC - periodStartWC;
+ var segmentCount = Math.ceil(periodDuration * timescale / duration);
+ var availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);
+ var availableEnd = Math.floor((now - periodStartWC) * timescale / duration);
+
+ return {
+ start: Math.max(0, availableStart),
+ end: Math.min(segmentCount, availableEnd)
+ };
+ }
+ };
+
+ /**
+ * Maps a range of numbers to objects with information needed to build the corresponding
+ * segment list
+ *
+ * @name toSegmentsCallback
+ * @function
+ * @param {number} number
+ * Number of the segment
+ * @param {number} index
+ * Index of the number in the range list
+ * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}
+ * Object with segment timing and duration info
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping a range of numbers to
+ * information needed to build the segment list.
+ *
+ * @param {Object} attributes
+ * Inherited MPD attributes
+ * @return {toSegmentsCallback}
+ * Callback map function
+ */
+ var toSegments = function toSegments(attributes) {
+ return function (number, index) {
+ var duration = attributes.duration,
+ _attributes$timescale3 = attributes.timescale,
+ timescale = _attributes$timescale3 === undefined ? 1 : _attributes$timescale3,
+ periodIndex = attributes.periodIndex,
+ _attributes$startNumb = attributes.startNumber,
+ startNumber = _attributes$startNumb === undefined ? 1 : _attributes$startNumb;
+
+ return {
+ number: startNumber + number,
+ duration: duration / timescale,
+ timeline: periodIndex,
+ time: index * duration
+ };
+ };
+ };
+
+ /**
+ * Returns a list of objects containing segment timing and duration info used for
+ * building the list of segments. This uses the @duration attribute specified
+ * in the MPD manifest to derive the range of segments.
+ *
+ * @param {Object} attributes
+ * Inherited MPD attributes
+ * @return {{number: number, duration: number, time: number, timeline: number}[]}
+ * List of Objects with segment timing and duration info
+ */
+ var parseByDuration = function parseByDuration(attributes) {
+ var _attributes$type = attributes.type,
+ type = _attributes$type === undefined ? 'static' : _attributes$type,
+ duration = attributes.duration,
+ _attributes$timescale4 = attributes.timescale,
+ timescale = _attributes$timescale4 === undefined ? 1 : _attributes$timescale4,
+ sourceDuration = attributes.sourceDuration;
+
+ var _segmentRange$type = segmentRange[type](attributes),
+ start = _segmentRange$type.start,
+ end = _segmentRange$type.end;
+
+ var segments = range(start, end).map(toSegments(attributes));
+
+ if (type === 'static') {
+ var index = segments.length - 1;
+
+ // final segment may be less than full segment duration
+ segments[index].duration = sourceDuration - duration / timescale * index;
+ }
+
+ return segments;
+ };
+
+ var identifierPattern = /\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g;
+
+ /**
+ * Replaces template identifiers with corresponding values. To be used as the callback
+ * for String.prototype.replace
+ *
+ * @name replaceCallback
+ * @function
+ * @param {string} match
+ * Entire match of identifier
+ * @param {string} identifier
+ * Name of matched identifier
+ * @param {string} format
+ * Format tag string. Its presence indicates that padding is expected
+ * @param {string} width
+ * Desired length of the replaced value. Values less than this width shall be left
+ * zero padded
+ * @return {string}
+ * Replacement for the matched identifier
+ */
+
+ /**
+ * Returns a function to be used as a callback for String.prototype.replace to replace
+ * template identifiers
+ *
+ * @param {Obect} values
+ * Object containing values that shall be used to replace known identifiers
+ * @param {number} values.RepresentationID
+ * Value of the Representation@id attribute
+ * @param {number} values.Number
+ * Number of the corresponding segment
+ * @param {number} values.Bandwidth
+ * Value of the Representation@bandwidth attribute.
+ * @param {number} values.Time
+ * Timestamp value of the corresponding segment
+ * @return {replaceCallback}
+ * Callback to be used with String.prototype.replace to replace identifiers
+ */
+ var identifierReplacement = function identifierReplacement(values) {
+ return function (match, identifier, format, width) {
+ if (match === '$$') {
+ // escape sequence
+ return '$';
+ }
+
+ if (typeof values[identifier] === 'undefined') {
+ return match;
+ }
+
+ var value = '' + values[identifier];
+
+ if (identifier === 'RepresentationID') {
+ // Format tag shall not be present with RepresentationID
+ return value;
+ }
+
+ if (!format) {
+ width = 1;
+ } else {
+ width = parseInt(width, 10);
+ }
+
+ if (value.length >= width) {
+ return value;
+ }
+
+ return '' + new Array(width - value.length + 1).join('0') + value;
+ };
+ };
+
+ /**
+ * Constructs a segment url from a template string
+ *
+ * @param {string} url
+ * Template string to construct url from
+ * @param {Obect} values
+ * Object containing values that shall be used to replace known identifiers
+ * @param {number} values.RepresentationID
+ * Value of the Representation@id attribute
+ * @param {number} values.Number
+ * Number of the corresponding segment
+ * @param {number} values.Bandwidth
+ * Value of the Representation@bandwidth attribute.
+ * @param {number} values.Time
+ * Timestamp value of the corresponding segment
+ * @return {string}
+ * Segment url with identifiers replaced
+ */
+ var constructTemplateUrl = function constructTemplateUrl(url, values) {
+ return url.replace(identifierPattern, identifierReplacement(values));
+ };
+
+ /**
+ * Generates a list of objects containing timing and duration information about each
+ * segment needed to generate segment uris and the complete segment object
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]|undefined} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ * the SegmentTimeline element
+ * @return {{number: number, duration: number, time: number, timeline: number}[]}
+ * List of Objects with segment timing and duration info
+ */
+ var parseTemplateInfo = function parseTemplateInfo(attributes, segmentTimeline) {
+ if (!attributes.duration && !segmentTimeline) {
+ // if neither @duration or SegmentTimeline are present, then there shall be exactly
+ // one media segment
+ return [{
+ number: attributes.startNumber || 1,
+ duration: attributes.sourceDuration,
+ time: 0,
+ timeline: attributes.periodIndex
+ }];
+ }
+
+ if (attributes.duration) {
+ return parseByDuration(attributes);
+ }
+
+ return parseByTimeline(attributes, segmentTimeline);
+ };
+
+ /**
+ * Generates a list of segments using information provided by the SegmentTemplate element
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]|undefined} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ * the SegmentTimeline element
+ * @return {Object[]}
+ * List of segment objects
+ */
+ var segmentsFromTemplate = function segmentsFromTemplate(attributes, segmentTimeline) {
+ var templateValues = {
+ RepresentationID: attributes.id,
+ Bandwidth: attributes.bandwidth || 0
+ };
+
+ var _attributes$initializ = attributes.initialization,
+ initialization = _attributes$initializ === undefined ? { sourceURL: '', range: '' } : _attributes$initializ;
+
+ var mapSegment = urlTypeToSegment({
+ baseUrl: attributes.baseUrl,
+ source: constructTemplateUrl(initialization.sourceURL, templateValues),
+ range: initialization.range
+ });
+
+ var segments = parseTemplateInfo(attributes, segmentTimeline);
+
+ return segments.map(function (segment) {
+ templateValues.Number = segment.number;
+ templateValues.Time = segment.time;
+
+ var uri = constructTemplateUrl(attributes.media || '', templateValues);
+
+ return {
+ uri: uri,
+ timeline: segment.timeline,
+ duration: segment.duration,
+ resolvedUri: resolveUrl(attributes.baseUrl || '', uri),
+ map: mapSegment,
+ number: segment.number
+ };
+ });
+ };
+
+ var errors = {
+ INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',
+ DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',
+ DASH_INVALID_XML: 'DASH_INVALID_XML',
+ NO_BASE_URL: 'NO_BASE_URL',
+ MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',
+ SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',
+ UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'
+ };
+
+ /**
+ * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)
+ * to an object that matches the output of a segment in videojs/mpd-parser
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object} segmentUrl
+ * <SegmentURL> node to translate into a segment object
+ * @return {Object} translated segment object
+ */
+ var SegmentURLToSegmentObject = function SegmentURLToSegmentObject(attributes, segmentUrl) {
+ var baseUrl = attributes.baseUrl,
+ _attributes$initializ = attributes.initialization,
+ initialization = _attributes$initializ === undefined ? {} : _attributes$initializ;
+
+ var initSegment = urlTypeToSegment({
+ baseUrl: baseUrl,
+ source: initialization.sourceURL,
+ range: initialization.range
+ });
+
+ var segment = urlTypeToSegment({
+ baseUrl: baseUrl,
+ source: segmentUrl.media,
+ range: segmentUrl.mediaRange
+ });
+
+ segment.map = initSegment;
+
+ return segment;
+ };
+
+ /**
+ * Generates a list of segments using information provided by the SegmentList element
+ * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes. Each
+ * node should be translated into segment.
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]|undefined} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ * the SegmentTimeline element
+ * @return {Object.<Array>} list of segments
+ */
+ var segmentsFromList = function segmentsFromList(attributes, segmentTimeline) {
+ var duration = attributes.duration,
+ _attributes$segmentUr = attributes.segmentUrls,
+ segmentUrls = _attributes$segmentUr === undefined ? [] : _attributes$segmentUr;
+
+ // Per spec (5.3.9.2.1) no way to determine segment duration OR
+ // if both SegmentTimeline and @duration are defined, it is outside of spec.
+
+ if (!duration && !segmentTimeline || duration && segmentTimeline) {
+ throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);
+ }
+
+ var segmentUrlMap = segmentUrls.map(function (segmentUrlObject) {
+ return SegmentURLToSegmentObject(attributes, segmentUrlObject);
+ });
+ var segmentTimeInfo = void 0;
+
+ if (duration) {
+ segmentTimeInfo = parseByDuration(attributes);
+ }
+
+ if (segmentTimeline) {
+ segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);
+ }
+
+ var segments = segmentTimeInfo.map(function (segmentTime, index) {
+ if (segmentUrlMap[index]) {
+ var segment = segmentUrlMap[index];
+
+ segment.timeline = segmentTime.timeline;
+ segment.duration = segmentTime.duration;
+ segment.number = segmentTime.number;
+ return segment;
+ }
+ // Since we're mapping we should get rid of any blank segments (in case
+ // the given SegmentTimeline is handling for more elements than we have
+ // SegmentURLs for).
+ }).filter(function (segment) {
+ return segment;
+ });
+
+ return segments;
+ };
+
+ /**
+ * Translates SegmentBase into a set of segments.
+ * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes. Each
+ * node should be translated into segment.
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @return {Object.<Array>} list of segments
+ */
+ var segmentsFromBase = function segmentsFromBase(attributes) {
+ var baseUrl = attributes.baseUrl,
+ _attributes$initializ = attributes.initialization,
+ initialization = _attributes$initializ === undefined ? {} : _attributes$initializ,
+ sourceDuration = attributes.sourceDuration,
+ _attributes$timescale = attributes.timescale,
+ timescale = _attributes$timescale === undefined ? 1 : _attributes$timescale,
+ _attributes$indexRang = attributes.indexRange,
+ indexRange = _attributes$indexRang === undefined ? '' : _attributes$indexRang,
+ duration = attributes.duration;
+
+ // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)
+
+ if (!baseUrl) {
+ throw new Error(errors.NO_BASE_URL);
+ }
+
+ var initSegment = urlTypeToSegment({
+ baseUrl: baseUrl,
+ source: initialization.sourceURL,
+ range: initialization.range
+ });
+ var segment = urlTypeToSegment({ baseUrl: baseUrl, source: baseUrl, range: indexRange });
+
+ segment.map = initSegment;
+
+ // If there is a duration, use it, otherwise use the given duration of the source
+ // (since SegmentBase is only for one total segment)
+ if (duration) {
+ var segmentTimeInfo = parseByDuration(attributes);
+
+ if (segmentTimeInfo.length) {
+ segment.duration = segmentTimeInfo[0].duration;
+ segment.timeline = segmentTimeInfo[0].timeline;
+ }
+ } else if (sourceDuration) {
+ segment.duration = sourceDuration / timescale;
+ segment.timeline = 0;
+ }
+
+ // This is used for mediaSequence
+ segment.number = 0;
+
+ return [segment];
+ };
+
+ var generateSegments = function generateSegments(_ref) {
+ var attributes = _ref.attributes,
+ segmentInfo = _ref.segmentInfo;
+
+ var segmentAttributes = void 0;
+ var segmentsFn = void 0;
+
+ if (segmentInfo.template) {
+ segmentsFn = segmentsFromTemplate;
+ segmentAttributes = merge(attributes, segmentInfo.template);
+ } else if (segmentInfo.base) {
+ segmentsFn = segmentsFromBase;
+ segmentAttributes = merge(attributes, segmentInfo.base);
+ } else if (segmentInfo.list) {
+ segmentsFn = segmentsFromList;
+ segmentAttributes = merge(attributes, segmentInfo.list);
+ }
+
+ if (!segmentsFn) {
+ return { attributes: attributes };
+ }
+
+ var segments = segmentsFn(segmentAttributes, segmentInfo.timeline);
+
+ // The @duration attribute will be used to determin the playlist's targetDuration which
+ // must be in seconds. Since we've generated the segment list, we no longer need
+ // @duration to be in @timescale units, so we can convert it here.
+ if (segmentAttributes.duration) {
+ var _segmentAttributes = segmentAttributes,
+ duration = _segmentAttributes.duration,
+ _segmentAttributes$ti = _segmentAttributes.timescale,
+ timescale = _segmentAttributes$ti === undefined ? 1 : _segmentAttributes$ti;
+
+ segmentAttributes.duration = duration / timescale;
+ } else if (segments.length) {
+ // if there is no @duration attribute, use the largest segment duration as
+ // as target duration
+ segmentAttributes.duration = segments.reduce(function (max, segment) {
+ return Math.max(max, Math.ceil(segment.duration));
+ }, 0);
+ } else {
+ segmentAttributes.duration = 0;
+ }
+
+ return {
+ attributes: segmentAttributes,
+ segments: segments
+ };
+ };
+
+ var toPlaylists = function toPlaylists(representations) {
+ return representations.map(generateSegments);
+ };
+
+ var findChildren = function findChildren(element, name) {
+ return from(element.childNodes).filter(function (_ref) {
+ var tagName = _ref.tagName;
+ return tagName === name;
+ });
+ };
+
+ var getContent = function getContent(element) {
+ return element.textContent.trim();
+ };
+
+ var parseDuration = function parseDuration(str) {
+ var SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
+ var SECONDS_IN_MONTH = 30 * 24 * 60 * 60;
+ var SECONDS_IN_DAY = 24 * 60 * 60;
+ var SECONDS_IN_HOUR = 60 * 60;
+ var SECONDS_IN_MIN = 60;
+
+ // P10Y10M10DT10H10M10.1S
+ var durationRegex = /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/;
+ var match = durationRegex.exec(str);
+
+ if (!match) {
+ return 0;
+ }
+
+ var _match$slice = match.slice(1),
+ year = _match$slice[0],
+ month = _match$slice[1],
+ day = _match$slice[2],
+ hour = _match$slice[3],
+ minute = _match$slice[4],
+ second = _match$slice[5];
+
+ return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);
+ };
+
+ var parseDate = function parseDate(str) {
+ // Date format without timezone according to ISO 8601
+ // YYY-MM-DDThh:mm:ss.ssssss
+ var dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/;
+
+ // If the date string does not specifiy a timezone, we must specifiy UTC. This is
+ // expressed by ending with 'Z'
+ if (dateRegex.test(str)) {
+ str += 'Z';
+ }
+
+ return Date.parse(str);
+ };
+
+ // TODO: maybe order these in some way that makes it easy to find specific attributes
+ var parsers = {
+ /**
+ * Specifies the duration of the entire Media Presentation. Format is a duration string
+ * as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ mediaPresentationDuration: function mediaPresentationDuration(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the Segment availability start time for all Segments referred to in this
+ * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability
+ * time. Format is a date string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The date as seconds from unix epoch
+ */
+ availabilityStartTime: function availabilityStartTime(value) {
+ return parseDate(value) / 1000;
+ },
+
+ /**
+ * Specifies the smallest period between potential changes to the MPD. Format is a
+ * duration string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ minimumUpdatePeriod: function minimumUpdatePeriod(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the duration of the smallest time shifting buffer for any Representation
+ * in the MPD. Format is a duration string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ timeShiftBufferDepth: function timeShiftBufferDepth(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.
+ * Format is a duration string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ start: function start(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the width of the visual presentation
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed width
+ */
+ width: function width(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the height of the visual presentation
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed height
+ */
+ height: function height(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the bitrate of the representation
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed bandwidth
+ */
+ bandwidth: function bandwidth(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the number of the first Media Segment in this Representation in the Period
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed number
+ */
+ startNumber: function startNumber(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the timescale in units per seconds
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The aprsed timescale
+ */
+ timescale: function timescale(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the constant approximate Segment duration
+ * NOTE: The <Period> element also contains an @duration attribute. This duration
+ * specifies the duration of the Period. This attribute is currently not
+ * supported by the rest of the parser, however we still check for it to prevent
+ * errors.
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed duration
+ */
+ duration: function duration(value) {
+ var parsedValue = parseInt(value, 10);
+
+ if (isNaN(parsedValue)) {
+ return parseDuration(value);
+ }
+
+ return parsedValue;
+ },
+
+ /**
+ * Specifies the Segment duration, in units of the value of the @timescale.
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed duration
+ */
+ d: function d(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the MPD start time, in @timescale units, the first Segment in the series
+ * starts relative to the beginning of the Period
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed time
+ */
+ t: function t(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the repeat count of the number of following contiguous Segments with the
+ * same duration expressed by the value of @d
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed number
+ */
+ r: function r(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Default parser for all other attributes. Acts as a no-op and just returns the value
+ * as a string
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {string}
+ * Unparsed value
+ */
+ DEFAULT: function DEFAULT(value) {
+ return value;
+ }
+ };
+
+ /**
+ * Gets all the attributes and values of the provided node, parses attributes with known
+ * types, and returns an object with attribute names mapped to values.
+ *
+ * @param {Node} el
+ * The node to parse attributes from
+ * @return {Object}
+ * Object with all attributes of el parsed
+ */
+ var parseAttributes$1 = function parseAttributes(el) {
+ if (!(el && el.attributes)) {
+ return {};
+ }
+
+ return from(el.attributes).reduce(function (a, e) {
+ var parseFn = parsers[e.name] || parsers.DEFAULT;
+
+ a[e.name] = parseFn(e.value);
+
+ return a;
+ }, {});
+ };
+
+ function decodeB64ToUint8Array(b64Text) {
+ var decodedString = window_1.atob(b64Text);
+ var array = new Uint8Array(decodedString.length);
+
+ for (var i = 0; i < decodedString.length; i++) {
+ array[i] = decodedString.charCodeAt(i);
+ }
+ return array;
+ }
+
+ var keySystemsMap = {
+ 'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',
+ 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',
+ 'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',
+ 'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'
+ };
+
+ /**
+ * Builds a list of urls that is the product of the reference urls and BaseURL values
+ *
+ * @param {string[]} referenceUrls
+ * List of reference urls to resolve to
+ * @param {Node[]} baseUrlElements
+ * List of BaseURL nodes from the mpd
+ * @return {string[]}
+ * List of resolved urls
+ */
+ var buildBaseUrls = function buildBaseUrls(referenceUrls, baseUrlElements) {
+ if (!baseUrlElements.length) {
+ return referenceUrls;
+ }
+
+ return flatten(referenceUrls.map(function (reference) {
+ return baseUrlElements.map(function (baseUrlElement) {
+ return resolveUrl(reference, getContent(baseUrlElement));
+ });
+ }));
+ };
+
+ /**
+ * Contains all Segment information for its containing AdaptationSet
+ *
+ * @typedef {Object} SegmentInformation
+ * @property {Object|undefined} template
+ * Contains the attributes for the SegmentTemplate node
+ * @property {Object[]|undefined} timeline
+ * Contains a list of atrributes for each S node within the SegmentTimeline node
+ * @property {Object|undefined} list
+ * Contains the attributes for the SegmentList node
+ * @property {Object|undefined} base
+ * Contains the attributes for the SegmentBase node
+ */
+
+ /**
+ * Returns all available Segment information contained within the AdaptationSet node
+ *
+ * @param {Node} adaptationSet
+ * The AdaptationSet node to get Segment information from
+ * @return {SegmentInformation}
+ * The Segment information contained within the provided AdaptationSet
+ */
+ var getSegmentInformation = function getSegmentInformation(adaptationSet) {
+ var segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];
+ var segmentList = findChildren(adaptationSet, 'SegmentList')[0];
+ var segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(function (s) {
+ return merge({ tag: 'SegmentURL' }, parseAttributes$1(s));
+ });
+ var segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];
+ var segmentTimelineParentNode = segmentList || segmentTemplate;
+ var segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];
+ var segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;
+ var segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0];
+
+ // SegmentTemplate is handled slightly differently, since it can have both
+ // @initialization and an <Initialization> node. @initialization can be templated,
+ // while the node can have a url and range specified. If the <SegmentTemplate> has
+ // both @initialization and an <Initialization> subelement we opt to override with
+ // the node, as this interaction is not defined in the spec.
+ var template = segmentTemplate && parseAttributes$1(segmentTemplate);
+
+ if (template && segmentInitialization) {
+ template.initialization = segmentInitialization && parseAttributes$1(segmentInitialization);
+ } else if (template && template.initialization) {
+ // If it is @initialization we convert it to an object since this is the format that
+ // later functions will rely on for the initialization segment. This is only valid
+ // for <SegmentTemplate>
+ template.initialization = { sourceURL: template.initialization };
+ }
+
+ var segmentInfo = {
+ template: template,
+ timeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(function (s) {
+ return parseAttributes$1(s);
+ }),
+ list: segmentList && merge(parseAttributes$1(segmentList), {
+ segmentUrls: segmentUrls,
+ initialization: parseAttributes$1(segmentInitialization)
+ }),
+ base: segmentBase && merge(parseAttributes$1(segmentBase), {
+ initialization: parseAttributes$1(segmentInitialization)
+ })
+ };
+
+ Object.keys(segmentInfo).forEach(function (key) {
+ if (!segmentInfo[key]) {
+ delete segmentInfo[key];
+ }
+ });
+
+ return segmentInfo;
+ };
+
+ /**
+ * Contains Segment information and attributes needed to construct a Playlist object
+ * from a Representation
+ *
+ * @typedef {Object} RepresentationInformation
+ * @property {SegmentInformation} segmentInfo
+ * Segment information for this Representation
+ * @property {Object} attributes
+ * Inherited attributes for this Representation
+ */
+
+ /**
+ * Maps a Representation node to an object containing Segment information and attributes
+ *
+ * @name inheritBaseUrlsCallback
+ * @function
+ * @param {Node} representation
+ * Representation node from the mpd
+ * @return {RepresentationInformation}
+ * Representation information needed to construct a Playlist object
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping Representation nodes to
+ * Segment information and attributes using inherited BaseURL nodes.
+ *
+ * @param {Object} adaptationSetAttributes
+ * Contains attributes inherited by the AdaptationSet
+ * @param {string[]} adaptationSetBaseUrls
+ * Contains list of resolved base urls inherited by the AdaptationSet
+ * @param {SegmentInformation} adaptationSetSegmentInfo
+ * Contains Segment information for the AdaptationSet
+ * @return {inheritBaseUrlsCallback}
+ * Callback map function
+ */
+ var inheritBaseUrls = function inheritBaseUrls(adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) {
+ return function (representation) {
+ var repBaseUrlElements = findChildren(representation, 'BaseURL');
+ var repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);
+ var attributes = merge(adaptationSetAttributes, parseAttributes$1(representation));
+ var representationSegmentInfo = getSegmentInformation(representation);
+
+ return repBaseUrls.map(function (baseUrl) {
+ return {
+ segmentInfo: merge(adaptationSetSegmentInfo, representationSegmentInfo),
+ attributes: merge(attributes, { baseUrl: baseUrl })
+ };
+ });
+ };
+ };
+
+ /**
+ * Tranforms a series of content protection nodes to
+ * an object containing pssh data by key system
+ *
+ * @param {Node[]} contentProtectionNodes
+ * Content protection nodes
+ * @return {Object}
+ * Object containing pssh data by key system
+ */
+ var generateKeySystemInformation = function generateKeySystemInformation(contentProtectionNodes) {
+ return contentProtectionNodes.reduce(function (acc, node) {
+ var attributes = parseAttributes$1(node);
+ var keySystem = keySystemsMap[attributes.schemeIdUri];
+
+ if (keySystem) {
+ acc[keySystem] = { attributes: attributes };
+
+ var psshNode = findChildren(node, 'cenc:pssh')[0];
+
+ if (psshNode) {
+ var pssh = getContent(psshNode);
+ var psshBuffer = pssh && decodeB64ToUint8Array(pssh);
+
+ acc[keySystem].pssh = psshBuffer;
+ }
+ }
+
+ return acc;
+ }, {});
+ };
+
+ /**
+ * Maps an AdaptationSet node to a list of Representation information objects
+ *
+ * @name toRepresentationsCallback
+ * @function
+ * @param {Node} adaptationSet
+ * AdaptationSet node from the mpd
+ * @return {RepresentationInformation[]}
+ * List of objects containing Representaion information
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of
+ * Representation information objects
+ *
+ * @param {Object} periodAttributes
+ * Contains attributes inherited by the Period
+ * @param {string[]} periodBaseUrls
+ * Contains list of resolved base urls inherited by the Period
+ * @param {string[]} periodSegmentInfo
+ * Contains Segment Information at the period level
+ * @return {toRepresentationsCallback}
+ * Callback map function
+ */
+ var toRepresentations = function toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo) {
+ return function (adaptationSet) {
+ var adaptationSetAttributes = parseAttributes$1(adaptationSet);
+ var adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));
+ var role = findChildren(adaptationSet, 'Role')[0];
+ var roleAttributes = { role: parseAttributes$1(role) };
+
+ var attrs = merge(periodAttributes, adaptationSetAttributes, roleAttributes);
+
+ var contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));
+
+ if (Object.keys(contentProtection).length) {
+ attrs = merge(attrs, { contentProtection: contentProtection });
+ }
+
+ var segmentInfo = getSegmentInformation(adaptationSet);
+ var representations = findChildren(adaptationSet, 'Representation');
+ var adaptationSetSegmentInfo = merge(periodSegmentInfo, segmentInfo);
+
+ return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));
+ };
+ };
+
+ /**
+ * Maps an Period node to a list of Representation inforamtion objects for all
+ * AdaptationSet nodes contained within the Period
+ *
+ * @name toAdaptationSetsCallback
+ * @function
+ * @param {Node} period
+ * Period node from the mpd
+ * @param {number} periodIndex
+ * Index of the Period within the mpd
+ * @return {RepresentationInformation[]}
+ * List of objects containing Representaion information
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping Period nodes to a list of
+ * Representation information objects
+ *
+ * @param {Object} mpdAttributes
+ * Contains attributes inherited by the mpd
+ * @param {string[]} mpdBaseUrls
+ * Contains list of resolved base urls inherited by the mpd
+ * @return {toAdaptationSetsCallback}
+ * Callback map function
+ */
+ var toAdaptationSets = function toAdaptationSets(mpdAttributes, mpdBaseUrls) {
+ return function (period, periodIndex) {
+ var periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period, 'BaseURL'));
+ var periodAtt = parseAttributes$1(period);
+ var periodAttributes = merge(mpdAttributes, periodAtt, { periodIndex: periodIndex });
+ var adaptationSets = findChildren(period, 'AdaptationSet');
+ var periodSegmentInfo = getSegmentInformation(period);
+
+ return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));
+ };
+ };
+
+ /**
+ * Traverses the mpd xml tree to generate a list of Representation information objects
+ * that have inherited attributes from parent nodes
+ *
+ * @param {Node} mpd
+ * The root node of the mpd
+ * @param {Object} options
+ * Available options for inheritAttributes
+ * @param {string} options.manifestUri
+ * The uri source of the mpd
+ * @param {number} options.NOW
+ * Current time per DASH IOP. Default is current time in ms since epoch
+ * @param {number} options.clientOffset
+ * Client time difference from NOW (in milliseconds)
+ * @return {RepresentationInformation[]}
+ * List of objects containing Representation information
+ */
+ var inheritAttributes = function inheritAttributes(mpd) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var _options$manifestUri = options.manifestUri,
+ manifestUri = _options$manifestUri === undefined ? '' : _options$manifestUri,
+ _options$NOW = options.NOW,
+ NOW = _options$NOW === undefined ? Date.now() : _options$NOW,
+ _options$clientOffset = options.clientOffset,
+ clientOffset = _options$clientOffset === undefined ? 0 : _options$clientOffset;
+
+ var periods = findChildren(mpd, 'Period');
+
+ if (periods.length !== 1) {
+ // TODO add support for multiperiod
+ throw new Error(errors.INVALID_NUMBER_OF_PERIOD);
+ }
+
+ var mpdAttributes = parseAttributes$1(mpd);
+ var mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL'));
+
+ mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;
+ mpdAttributes.NOW = NOW;
+ mpdAttributes.clientOffset = clientOffset;
+
+ return flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)));
+ };
+
+ var stringToMpdXml = function stringToMpdXml(manifestString) {
+ if (manifestString === '') {
+ throw new Error(errors.DASH_EMPTY_MANIFEST);
+ }
+
+ var parser = new window_1.DOMParser();
+ var xml = parser.parseFromString(manifestString, 'application/xml');
+ var mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;
+
+ if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {
+ throw new Error(errors.DASH_INVALID_XML);
+ }
+
+ return mpd;
+ };
+
+ /**
+ * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
+ *
+ * @param {string} mpd
+ * XML string of the MPD manifest
+ * @return {Object|null}
+ * Attributes of UTCTiming node specified in the manifest. Null if none found
+ */
+ var parseUTCTimingScheme = function parseUTCTimingScheme(mpd) {
+ var UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];
+
+ if (!UTCTimingNode) {
+ return null;
+ }
+
+ var attributes = parseAttributes$1(UTCTimingNode);
+
+ switch (attributes.schemeIdUri) {
+ case 'urn:mpeg:dash:utc:http-head:2014':
+ case 'urn:mpeg:dash:utc:http-head:2012':
+ attributes.method = 'HEAD';
+ break;
+ case 'urn:mpeg:dash:utc:http-xsdate:2014':
+ case 'urn:mpeg:dash:utc:http-iso:2014':
+ case 'urn:mpeg:dash:utc:http-xsdate:2012':
+ case 'urn:mpeg:dash:utc:http-iso:2012':
+ attributes.method = 'GET';
+ break;
+ case 'urn:mpeg:dash:utc:direct:2014':
+ case 'urn:mpeg:dash:utc:direct:2012':
+ attributes.method = 'DIRECT';
+ attributes.value = Date.parse(attributes.value);
+ break;
+ case 'urn:mpeg:dash:utc:http-ntp:2014':
+ case 'urn:mpeg:dash:utc:ntp:2014':
+ case 'urn:mpeg:dash:utc:sntp:2014':
+ default:
+ throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);
+ }
+
+ return attributes;
+ };
+
+ var parse = function parse(manifestString, options) {
+ return toM3u8(toPlaylists(inheritAttributes(stringToMpdXml(manifestString), options)));
+ };
+
+ /**
+ * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
+ *
+ * @param {string} manifestString
+ * XML string of the MPD manifest
+ * @return {Object|null}
+ * Attributes of UTCTiming node specified in the manifest. Null if none found
+ */
+ var parseUTCTiming = function parseUTCTiming(manifestString) {
+ return parseUTCTimingScheme(stringToMpdXml(manifestString));
+ };
+
+ var toUnsigned = function toUnsigned(value) {
+ return value >>> 0;
+ };
+
+ var bin = {
+ toUnsigned: toUnsigned
+ };
+
+ var toUnsigned$1 = bin.toUnsigned;
+ var _findBox, parseType, timescale, startTime, getVideoTrackIds;
+
+ // Find the data for a box specified by its path
+ _findBox = function findBox(data, path) {
+ var results = [],
+ i,
+ size,
+ type,
+ end,
+ subresults;
+
+ if (!path.length) {
+ // short-circuit the search for empty paths
+ return null;
+ }
+
+ for (i = 0; i < data.byteLength;) {
+ size = toUnsigned$1(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+
+ type = parseType(data.subarray(i + 4, i + 8));
+
+ end = size > 1 ? i + size : data.byteLength;
+
+ if (type === path[0]) {
+ if (path.length === 1) {
+ // this is the end of the path and we've found the box we were
+ // looking for
+ results.push(data.subarray(i + 8, end));
+ } else {
+ // recursively search for the next box along the path
+ subresults = _findBox(data.subarray(i + 8, end), path.slice(1));
+ if (subresults.length) {
+ results = results.concat(subresults);
+ }
+ }
+ }
+ i = end;
+ }
+
+ // we've finished searching all of data
+ return results;
+ };
+
+ /**
+ * Returns the string representation of an ASCII encoded four byte buffer.
+ * @param buffer {Uint8Array} a four-byte buffer to translate
+ * @return {string} the corresponding string
+ */
+ parseType = function parseType(buffer) {
+ var result = '';
+ result += String.fromCharCode(buffer[0]);
+ result += String.fromCharCode(buffer[1]);
+ result += String.fromCharCode(buffer[2]);
+ result += String.fromCharCode(buffer[3]);
+ return result;
+ };
+
+ /**
+ * Parses an MP4 initialization segment and extracts the timescale
+ * values for any declared tracks. Timescale values indicate the
+ * number of clock ticks per second to assume for time-based values
+ * elsewhere in the MP4.
+ *
+ * To determine the start time of an MP4, you need two pieces of
+ * information: the timescale unit and the earliest base media decode
+ * time. Multiple timescales can be specified within an MP4 but the
+ * base media decode time is always expressed in the timescale from
+ * the media header box for the track:
+ * ```
+ * moov > trak > mdia > mdhd.timescale
+ * ```
+ * @param init {Uint8Array} the bytes of the init segment
+ * @return {object} a hash of track ids to timescale values or null if
+ * the init segment is malformed.
+ */
+ timescale = function timescale(init) {
+ var result = {},
+ traks = _findBox(init, ['moov', 'trak']);
+
+ // mdhd timescale
+ return traks.reduce(function (result, trak) {
+ var tkhd, version, index, id, mdhd;
+
+ tkhd = _findBox(trak, ['tkhd'])[0];
+ if (!tkhd) {
+ return null;
+ }
+ version = tkhd[0];
+ index = version === 0 ? 12 : 20;
+ id = toUnsigned$1(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+
+ mdhd = _findBox(trak, ['mdia', 'mdhd'])[0];
+ if (!mdhd) {
+ return null;
+ }
+ version = mdhd[0];
+ index = version === 0 ? 12 : 20;
+ result[id] = toUnsigned$1(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+ return result;
+ }, result);
+ };
+
+ /**
+ * Determine the base media decode start time, in seconds, for an MP4
+ * fragment. If multiple fragments are specified, the earliest time is
+ * returned.
+ *
+ * The base media decode time can be parsed from track fragment
+ * metadata:
+ * ```
+ * moof > traf > tfdt.baseMediaDecodeTime
+ * ```
+ * It requires the timescale value from the mdhd to interpret.
+ *
+ * @param timescale {object} a hash of track ids to timescale values.
+ * @return {number} the earliest base media decode start time for the
+ * fragment, in seconds
+ */
+ startTime = function startTime(timescale, fragment) {
+ var trafs, baseTimes, result;
+
+ // we need info from two childrend of each track fragment box
+ trafs = _findBox(fragment, ['moof', 'traf']);
+
+ // determine the start times for each track
+ baseTimes = [].concat.apply([], trafs.map(function (traf) {
+ return _findBox(traf, ['tfhd']).map(function (tfhd) {
+ var id, scale, baseTime;
+
+ // get the track id from the tfhd
+ id = toUnsigned$1(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]);
+ // assume a 90kHz clock if no timescale was specified
+ scale = timescale[id] || 90e3;
+
+ // get the base media decode time from the tfdt
+ baseTime = _findBox(traf, ['tfdt']).map(function (tfdt) {
+ var version, result;
+
+ version = tfdt[0];
+ result = toUnsigned$1(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);
+ if (version === 1) {
+ result *= Math.pow(2, 32);
+ result += toUnsigned$1(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);
+ }
+ return result;
+ })[0];
+ baseTime = baseTime || Infinity;
+
+ // convert base time to seconds
+ return baseTime / scale;
+ });
+ }));
+
+ // return the minimum
+ result = Math.min.apply(null, baseTimes);
+ return isFinite(result) ? result : 0;
+ };
+
+ /**
+ * Find the trackIds of the video tracks in this source.
+ * Found by parsing the Handler Reference and Track Header Boxes:
+ * moov > trak > mdia > hdlr
+ * moov > trak > tkhd
+ *
+ * @param {Uint8Array} init - The bytes of the init segment for this source
+ * @return {Number[]} A list of trackIds
+ *
+ * @see ISO-BMFF-12/2015, Section 8.4.3
+ **/
+ getVideoTrackIds = function getVideoTrackIds(init) {
+ var traks = _findBox(init, ['moov', 'trak']);
+ var videoTrackIds = [];
+
+ traks.forEach(function (trak) {
+ var hdlrs = _findBox(trak, ['mdia', 'hdlr']);
+ var tkhds = _findBox(trak, ['tkhd']);
+
+ hdlrs.forEach(function (hdlr, index) {
+ var handlerType = parseType(hdlr.subarray(8, 12));
+ var tkhd = tkhds[index];
+ var view;
+ var version;
+ var trackId;
+
+ if (handlerType === 'vide') {
+ view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+ version = view.getUint8(0);
+ trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+
+ videoTrackIds.push(trackId);
+ }
+ });
+ });
+
+ return videoTrackIds;
+ };
+
+ var probe = {
+ findBox: _findBox,
+ parseType: parseType,
+ timescale: timescale,
+ startTime: startTime,
+ videoTrackIds: getVideoTrackIds
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS;
+
+ // pre-calculate constants
+ (function () {
+ var i;
+ types = {
+ avc1: [], // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [], // codingname
+ mvex: [],
+ mvhd: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ };
+
+ // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length;
+
+ // calculate the total size we need to allocate
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4);
+
+ // copy the payload into the result
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]);
+
+ // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length;
+ // build traf boxes for each track fragment
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i;
+
+ // leave the full box header (4 bytes) all zero
+
+ // write the sample table
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i;
+
+ // assemble the SPSs
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ }
+
+ // assemble the PPSs
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ return box(types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length // numOfSequenceParameterSets
+ ]).concat(sequenceParameterSets).concat([pps.length // numOfPictureParameterSets
+ ]).concat(pictureParameterSets))), // "PPS"
+ box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
+ );
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([
+
+ // SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+
+ return box(types.tkhd, result);
+ };
+
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF]));
+
+ // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+
+ // audio tracks require less metadata
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ }
+
+ // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]);
+ // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader;
+
+ // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0;
+
+ // trun flag constants
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2014 Brightcove
+ * All rights reserved.
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+
+ var Stream$1 = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+ this.off = function (type, listener) {
+ var index;
+ if (!listeners[type]) {
+ return false;
+ }
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+ Stream$1.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+
+ return destination;
+ };
+
+ // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+ Stream$1.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream$1.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ var stream = Stream$1;
+
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = [];
+
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i];
+
+ // Split on 'aud'-type nal units
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ frames.push(currentFrame);
+ }
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ }
+
+ // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ }
+
+ // Push the final frame
+ frames.push(currentFrame);
+ return frames;
+ };
+
+ // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = [];
+
+ // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts;
+
+ // store some metadata about all the Gops
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+
+ // push the final Gop
+ gops.push(currentGop);
+ return gops;
+ };
+
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount;
+
+ // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ };
+
+ // generate the track's sample table from an array of gops
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ sample = sampleForFrame(currentFrame, dataOffset);
+
+ dataOffset += sample.size;
+
+ samples.push(sample);
+ }
+ }
+ return samples;
+ };
+
+ // generate the track's raw mdat data from an array of gops
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer);
+
+ // For each Gop..
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ // For each Frame..
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ // For each NAL..
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData
+ };
+
+ var ONE_SECOND_IN_TS = 90000; // 90kHz clock
+
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts;
+
+ // Optionally adjust the time so the first segment starts at zero.
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ }
+
+ // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime;
+
+ // Add to that the distance this segment is from the very first
+ baseMediaDecodeTime += minSegmentDts;
+
+ // baseMediaDecodeTime must not become negative
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0;
+
+ // go through the sei_rbsp parsing each each individual sei_message
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ }
+
+ // Parse payload type
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+ payloadType += bytes[i++];
+
+ // Parse payload size
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+ payloadSize += bytes[i++];
+
+ // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ }
+
+ // skip the payload and parse the next message
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ };
+
+ // see ANSI/SCTE 128-1 (2013), section 8.1
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ }
+
+ // itu_t_t35_provider_code should be 49 (ATSC) for captions
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ }
+
+ // the user_identifier should be "GA94" to indicate ATSC1 data
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ }
+
+ // finally, user_data_type_code should be 0x03 for caption data
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ }
+
+ // return the user_data_type_structure and strip the trailing
+ // marker bits
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ };
+
+ // see CEA-708-D, section 4.4
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data;
+
+ // if this is just filler, return immediately
+ if (!(userData[0] & 0x40)) {
+ return results;
+ }
+
+ // parse out the cc_data_1 and cc_data_2 fields
+ count = userData[0] & 0x1f;
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ };
+
+ // capture cc data when cc_valid is 1
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ // exports
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ };
+
+ // -----------------
+ // Link To Transport
+ // -----------------
+
+
+ var CaptionStream = function CaptionStream() {
+
+ CaptionStream.prototype.init.call(this);
+
+ this.captionPackets_ = [];
+
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+
+ this.reset();
+
+ // forward data and done events from CCs to this CaptionStream
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new stream();
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets;
+
+ // only examine SEI NALs
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ }
+
+ // parse the sei
+ sei = captionPacketParser.parseSei(event.escapedRBSP);
+
+ // ignore everything but user_data_registered_itu_t_t35
+ if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ }
+
+ // parse out the user data payload
+ userData = captionPacketParser.parseUserData(sei);
+
+ // ignore unrecognized userData
+ if (!userData) {
+ return;
+ }
+
+ // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+ return;
+ }
+
+ // parse out CC data packets and save them for later
+ newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flush = function () {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ }
+
+ // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ });
+
+ // sort caption byte-pairs based on their PTS values
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+ return a.pts - b.pts;
+ });
+
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ }
+ // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+ }, this);
+
+ this.captionPackets_.length = 0;
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ };
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, discard the
+ // data; we don't want jumbled captions
+ return;
+ }
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ // ----------------------
+ // Session to Application
+ // ----------------------
+
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1, // á
+ 0x5c: 0xe9, // é
+ 0x5e: 0xed, // í
+ 0x5f: 0xf3, // ó
+ 0x60: 0xfa, // ú
+ 0x7b: 0xe7, // ç
+ 0x7c: 0xf7, // ÷
+ 0x7d: 0xd1, // Ñ
+ 0x7e: 0xf1, // ñ
+ 0x7f: 0x2588, // █
+ 0x0130: 0xae, // ®
+ 0x0131: 0xb0, // °
+ 0x0132: 0xbd, // ½
+ 0x0133: 0xbf, // ¿
+ 0x0134: 0x2122, // ™
+ 0x0135: 0xa2, // ¢
+ 0x0136: 0xa3, // £
+ 0x0137: 0x266a, // ♪
+ 0x0138: 0xe0, // à
+ 0x0139: 0xa0, //
+ 0x013a: 0xe8, // è
+ 0x013b: 0xe2, // â
+ 0x013c: 0xea, // ê
+ 0x013d: 0xee, // î
+ 0x013e: 0xf4, // ô
+ 0x013f: 0xfb, // û
+ 0x0220: 0xc1, // Á
+ 0x0221: 0xc9, // É
+ 0x0222: 0xd3, // Ó
+ 0x0223: 0xda, // Ú
+ 0x0224: 0xdc, // Ü
+ 0x0225: 0xfc, // ü
+ 0x0226: 0x2018, // ‘
+ 0x0227: 0xa1, // ¡
+ 0x0228: 0x2a, // *
+ 0x0229: 0x27, // '
+ 0x022a: 0x2014, // —
+ 0x022b: 0xa9, // ©
+ 0x022c: 0x2120, // ℠
+ 0x022d: 0x2022, // •
+ 0x022e: 0x201c, // “
+ 0x022f: 0x201d, // ”
+ 0x0230: 0xc0, // À
+ 0x0231: 0xc2, // Â
+ 0x0232: 0xc7, // Ç
+ 0x0233: 0xc8, // È
+ 0x0234: 0xca, // Ê
+ 0x0235: 0xcb, // Ë
+ 0x0236: 0xeb, // ë
+ 0x0237: 0xce, // Î
+ 0x0238: 0xcf, // Ï
+ 0x0239: 0xef, // ï
+ 0x023a: 0xd4, // Ô
+ 0x023b: 0xd9, // Ù
+ 0x023c: 0xf9, // ù
+ 0x023d: 0xdb, // Û
+ 0x023e: 0xab, // «
+ 0x023f: 0xbb, // »
+ 0x0320: 0xc3, // Ã
+ 0x0321: 0xe3, // ã
+ 0x0322: 0xcd, // Í
+ 0x0323: 0xcc, // Ì
+ 0x0324: 0xec, // ì
+ 0x0325: 0xd2, // Ò
+ 0x0326: 0xf2, // ò
+ 0x0327: 0xd5, // Õ
+ 0x0328: 0xf5, // õ
+ 0x0329: 0x7b, // {
+ 0x032a: 0x7d, // }
+ 0x032b: 0x5c, // \
+ 0x032c: 0x5e, // ^
+ 0x032d: 0x5f, // _
+ 0x032e: 0x7c, // |
+ 0x032f: 0x7e, // ~
+ 0x0330: 0xc4, // Ä
+ 0x0331: 0xe4, // ä
+ 0x0332: 0xd6, // Ö
+ 0x0333: 0xf6, // ö
+ 0x0334: 0xdf, // ß
+ 0x0335: 0xa5, // ¥
+ 0x0336: 0xa4, // ¤
+ 0x0337: 0x2502, // │
+ 0x0338: 0xc5, // Å
+ 0x0339: 0xe5, // å
+ 0x033a: 0xd8, // Ø
+ 0x033b: 0xf8, // ø
+ 0x033c: 0x250c, // ┌
+ 0x033d: 0x2510, // ┐
+ 0x033e: 0x2514, // └
+ 0x033f: 0x2518 // ┘
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ };
+
+ // the index of the last row in a CEA-608 display buffer
+ var BOTTOM_ROW = 14;
+
+ // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420];
+
+ // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+ while (i--) {
+ result.push('');
+ }
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text;
+ // remove the parity bits
+ data = packet.ccData & 0x7f7f;
+
+ // ignore duplicate control codes; the spec demands they're sent twice
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ }
+
+ // Store control codes
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts);
+ // if a caption was being displayed, it's gone now
+ this.flushDisplayed(packet.pts);
+
+ // flip memory
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap;
+
+ // start measuring the time to display the caption
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts;
+
+ // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts);
+
+ // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ // Detect offset control codes and adjust cursor
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03;
+
+ // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20);
+
+ // Configure the caption window if we're in roll-up mode
+ if (this.mode_ === 'rollUp') {
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ }
+ // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ }
+
+ // We have a normal character in char0, and possibly one in char1
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+ };
+ };
+ Cea608Stream.prototype = new stream();
+ // Trigger a cue point that captures the current state of the
+ // display buffer
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_
+ // remove spaces from the start and end of the string
+ .map(function (row) {
+ return row.trim();
+ })
+ // combine all text rows to display in one cue
+ .join('\n')
+ // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn';
+ // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null;
+
+ // Track row and column for proper line-breaking and spacing
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2;
+
+ // This variable holds currently-applied formatting
+ this.formatting_ = [];
+ };
+
+ /**
+ * Sets up control code and related constants for this instance
+ */
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ }
+
+ // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+ this.PADDING_ = 0x0000;
+ // Pop-on Mode
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f;
+ // Roll-up Mode
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d;
+ // paint-on mode
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29;
+ // Erasure
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+ Cea608Stream.prototype.isNormalChar = function (char) {
+ return char >= 0x20 && char <= 0x7f;
+ };
+
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp';
+ // Spec says to wipe memories when switching to roll-up
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ };
+
+ // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ };
+
+ // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ };
+
+ // Mode Implementations
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_];
+
+ // buffer characters
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i;
+ // clear out inactive rows
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ }
+ // shift displayed rows up
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ }
+ // clear out the bottom row
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ // exports
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+
+ var MAX_TS = 8589934592;
+
+ var RO_THRESH = 4294967296;
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ }
+
+ // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+
+ TimestampRolloverStream.prototype.init.call(this);
+
+ this.type_ = type;
+
+ this.push = function (data) {
+ if (data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+
+ lastDTS = data.dts;
+
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+ };
+
+ TimestampRolloverStream.prototype = new stream();
+
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ },
+
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ // do not include the null terminator in the tag value
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this);
+
+ // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+ this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ }
+
+ // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ }
+
+ // ignore events that don't look like ID3 data
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+ return;
+ }
+
+ // add this chunk to the data we've collected so far
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength;
+
+ // grab the size of the entire frame from the ID3 header
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10));
+
+ // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+ tagSize += 10;
+ }
+
+ // if the entire frame has not arrived, wait for more data
+ if (bufferSize < tagSize) {
+ return;
+ }
+
+ // collect the entire frame so it can be parsed
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ }
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14));
+
+ // clip any padding off the end
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame);
+
+ // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size;
+ // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+ this.trigger('timestamp', frame);
+ }
+ }
+ tag.frames.push(frame);
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+ this.trigger('data', tag);
+ };
+ };
+ _MetadataStream.prototype = new stream();
+
+ var metadataStream = _MetadataStream;
+
+ var TimestampRolloverStream$1 = timestampRolloverStream.TimestampRolloverStream;
+
+ // object types
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream;
+
+ // constants
+ var MP2T_PACKET_LENGTH = 188,
+ // bytes
+ SYNC_BYTE = 0x47;
+
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this);
+
+ // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ }
+
+ // While we have enough data for a packet
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ }
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+ this.trigger('done');
+ };
+ };
+ _TransportPacketStream.prototype = new stream();
+
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+ _TransportParseStream.prototype.init.call(this);
+ self = this;
+
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0;
+
+ // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+
+ // skip the PSI header and parse the first PMT entry
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset;
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(payload[5] & 0x01)) {
+ return;
+ }
+
+ // overwrite any existing program map table
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ };
+
+ // the mapping table ends at the end of the current section
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11];
+
+ // advance the offset to the first entry in the mapping table
+ offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2];
+
+ // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+ if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ }
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ }
+
+ // record the map on the packet as well
+ pmt.programMapTable = self.programMapTable;
+ };
+
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40);
+
+ // pid is a 13-bit field starting at the last bit of packet[1]
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2];
+
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ }
+
+ // parse the rest of the packet based on the type
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+
+ // if there are any packets waiting for a PMT to be found, process them now
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = streamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = streamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+
+ this.trigger('data', result);
+ };
+ };
+ _TransportParseStream.prototype = new stream();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags;
+
+ // get the packet length, this will be 0 for video
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]);
+
+ // find out if this packets starts a new keyframe
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0;
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = payload[7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream$$1, type, forceFlush) {
+ var packetData = new Uint8Array(stream$$1.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment;
+
+ // do nothing if there is not enough buffered data for a complete
+ // PES header
+ if (!stream$$1.data.length || stream$$1.size < 9) {
+ return;
+ }
+ event.trackId = stream$$1.data[0].pid;
+
+ // reassemble the packet
+ for (i = 0; i < stream$$1.data.length; i++) {
+ fragment = stream$$1.data[i];
+
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ }
+
+ // parse assembled packet's PES header
+ parsePes(packetData, event);
+
+ // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+ packetFlushable = type === 'video' || event.packetLength <= stream$$1.size;
+
+ // flush pending packets if the conditions are right
+ if (forceFlush || packetFlushable) {
+ stream$$1.size = 0;
+ stream$$1.data.length = 0;
+ }
+
+ // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+ this.push = function (data) {
+ ({
+ pat: function pat() {
+ // we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream$$1, streamType;
+
+ switch (data.streamType) {
+ case streamTypes.H264_STREAM_TYPE:
+ case streamTypes.H264_STREAM_TYPE:
+ stream$$1 = video;
+ streamType = 'video';
+ break;
+ case streamTypes.ADTS_STREAM_TYPE:
+ stream$$1 = audio;
+ streamType = 'audio';
+ break;
+ case streamTypes.METADATA_STREAM_TYPE:
+ stream$$1 = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+ default:
+ // ignore unknown stream types
+ return;
+ }
+
+ // if a new packet is starting, we can flush the completed
+ // packet
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream$$1, streamType, true);
+ }
+
+ // buffer this fragment until we are sure we've received the
+ // complete payload
+ stream$$1.data.push(data);
+ stream$$1.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ },
+ programMapTable = data.programMapTable;
+
+ // translate audio and video streams to tracks
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+ this.flush = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ this.trigger('done');
+ };
+ };
+ _ElementaryStream.prototype = new stream();
+
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: captionStream.CaptionStream,
+ Cea608Stream: captionStream.Cea608Stream,
+ MetadataStream: metadataStream
+ };
+
+ for (var type$1 in streamTypes) {
+ if (streamTypes.hasOwnProperty(type$1)) {
+ m2ts[type$1] = streamTypes[type$1];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+ _AdtsStream = function AdtsStream() {
+ var buffer;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameNum = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ }
+
+ // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ }
+
+ // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+ while (i + 5 < buffer.length) {
+
+ // Loook for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2;
+
+ // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * 90000 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+
+ frameEnd = i + frameLength;
+
+ // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+ if (buffer.byteLength < frameEnd) {
+ return;
+ }
+
+ // Otherwise, deliver the complete AAC frame
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+
+ // If the buffer is empty, clear it and return
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ }
+
+ frameNum++;
+
+ // Remove the finished frame from the buffer and start the process again
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+ this.flush = function () {
+ this.trigger('done');
+ };
+ };
+
+ _AdtsStream.prototype = new stream();
+
+ var adts = _AdtsStream;
+
+ var ExpGolomb;
+
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+ ExpGolomb = function ExpGolomb(workingData) {
+ var
+ // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+
+
+ // the current word being examined
+ workingWord = 0,
+ // :uint
+
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+
+ // ():uint
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ };
+
+ // ():uint
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ };
+
+ // ():void
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0);
+
+ // track the amount of workingData that has been processed
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ };
+
+ // (count:int):void
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+
+ this.loadWord();
+
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ };
+
+ // (size:int):uint
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+ workingBitsAvailable -= bits;
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+ return valu;
+ };
+
+ // ():uint
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ }
+
+ // we exhausted workingWord and still have not found a 1
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ };
+
+ // ():void
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():void
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():uint
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+ return this.readBits(clz + 1) - 1;
+ };
+
+ // ():int
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ };
+
+ // Some convenience functions
+ // :Boolean
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ };
+
+ // ():int
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var _H264Stream, _NalByteStream;
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+ _NalByteStream.prototype.init.call(this);
+
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+
+ // advance the sync point to a NAL start, if necessary
+ for (; syncPoint < buffer.byteLength - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < buffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ }
+
+ // deliver the NAL unit if it isn't empty
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ }
+
+ // drop trailing zeroes
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < buffer.length);
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ }
+
+ // deliver the NAL unit
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ }
+ // filter out the NAL units that were delivered
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ }
+ // reset the stream state
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+ };
+ _NalByteStream.prototype = new stream();
+
+ // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+ self = this;
+
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+
+ nalByteStream.push(packet);
+ };
+
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ }
+ // This triggers data on the H264Stream
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+
+ expGolombDecoder = new expGolomb(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+
+ // some profiles have more optional data we don't need
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];break;
+ case 2:
+ sarRatio = [12, 11];break;
+ case 3:
+ sarRatio = [10, 11];break;
+ case 4:
+ sarRatio = [16, 11];break;
+ case 5:
+ sarRatio = [40, 33];break;
+ case 6:
+ sarRatio = [24, 11];break;
+ case 7:
+ sarRatio = [20, 11];break;
+ case 8:
+ sarRatio = [32, 11];break;
+ case 9:
+ sarRatio = [80, 33];break;
+ case 10:
+ sarRatio = [18, 11];break;
+ case 11:
+ sarRatio = [15, 11];break;
+ case 12:
+ sarRatio = [64, 33];break;
+ case 13:
+ sarRatio = [160, 99];break;
+ case 14:
+ sarRatio = [4, 3];break;
+ case 15:
+ sarRatio = [3, 2];break;
+ case 16:
+ sarRatio = [2, 1];break;
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
+ };
+ };
+ };
+ _H264Stream.prototype = new stream();
+
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+
+ // Constants
+ var _AacStream;
+
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.parseId3TagSize = function (header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ this.parseAdtsSize = function (header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ }
+
+ // check framesize
+ frameSize = this.parseId3TagSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if (everything[byteIndex] & 0xff === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = this.parseAdtsSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+ byteIndex++;
+ }
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+ };
+
+ _AacStream.prototype = new stream();
+
+ var aac = _AacStream;
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+ while (count--) {
+ a.push(0);
+ }
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ };
+
+ // Frames-of-silence to use for filling in missing AAC frames
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+
+ var silence = makeTable(coneOfSilence);
+
+ var ONE_SECOND_IN_TS$1 = 90000,
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS$1;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS$1;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+
+ var clock = {
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs
+ };
+
+ var H264Stream = h264.H264Stream;
+
+ // constants
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility'];
+
+ var ONE_SECOND_IN_TS$2 = 90000; // 90kHz clock
+
+ // object types
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+
+ // Helper functions
+ var isLikelyAacData, arrayEquals, sumFrameByteLengths;
+
+ isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+ arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ }
+
+ // compare the value of each element in the array
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+ sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0;
+
+ // sum the byteLength's all each nal unit in the frame
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ };
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ }
+
+ // buffer audio data until end() is called
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes;
+
+ // return early if no audio data has been observed
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = this.trimAdtsFramesByEarliestDts_(adtsFrames);
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.prefixWithSilence_(track, frames);
+
+ // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+ track.samples = this.generateSampleTable_(frames);
+
+ // concatenate the audio data to constuct the mdat
+ mdat = mp4Generator.mdat(this.concatenateFrameData_(frames));
+
+ adtsFrames = [];
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ trackDecodeInfo.clearDtsInfo(track);
+
+ this.trigger('data', { track: track, boxes: boxes });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+ this.prefixWithSilence_ = function (track, frames) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate);
+ // determine frame clock duration based on sample rate, round up to avoid overfills
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$2 / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime);
+ // number of full frames in the audio gap
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ }
+
+ // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+ if (audioFillFrameCount < 1 || audioFillDuration > ONE_SECOND_IN_TS$2 / 2) {
+ return;
+ }
+
+ silentFrame = silence[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ frames.splice(i, 0, {
+ data: silentFrame
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ };
+
+ // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+ this.trimAdtsFramesByEarliestDts_ = function (adtsFrames) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ }
+
+ // We will need to recalculate the earliest segment Dts
+ track.minSegmentDts = Infinity;
+
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ }
+ // Otherwise, discard it
+ return false;
+ });
+ };
+
+ // generate the track's raw mdat data from an array of frames
+ this.generateSampleTable_ = function (frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+ });
+ }
+ return samples;
+ };
+
+ // generate the track's sample table from an array of frames
+ this.concatenateFrameData_ = function (frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+ return data;
+ };
+ };
+
+ _AudioSegmentStream.prototype = new stream();
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+
+ this.gopCache_ = [];
+
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+ this.push = function (nalUnit) {
+ trackDecodeInfo.collectDtsInfo(track, nalUnit);
+
+ // record the track config
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ }
+
+ // buffer video until flush() is called
+ nalUnits.push(nalUnit);
+ };
+
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+ this.flush = function () {
+ var frames, gopForFusion, gops, moof, mdat, boxes;
+
+ // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+ nalUnits.shift();
+ }
+
+ // Return early if no video data has been observed
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+ frames = frameUtils.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils.groupFramesIntoGops(frames);
+
+ // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ gops.unshift(gopForFusion);
+ // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils.extendFirstKeyFrame(gops);
+ }
+ }
+
+ // Trim gops to align with gopsToAlignWith
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ // return early no gops can be aligned with desired gopsToAlignWith
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+ trackDecodeInfo.clearDtsInfo(track);
+
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo.collectDtsInfo(track, gops);
+
+ // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+ track.samples = frameUtils.generateSampleTable(gops);
+
+ // Concatenate the video data and construct the mdat
+ mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
+
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+
+ // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // Bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ this.trigger('data', { track: track, boxes: boxes });
+
+ this.resetStream_();
+
+ // Continue with the flush process now
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo.clearDtsInfo(track);
+
+ // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+ config = undefined;
+ pps = undefined;
+ };
+
+ // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i;
+
+ // Search for the GOP nearest to the beginning of this nal unit
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop;
+
+ // Reject Gops with different SPS or PPS
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ }
+
+ // Reject Gops that would require a negative baseMediaDecodeTime
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ }
+
+ // The distance between the end of the gop and the start of the nalUnit
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration;
+
+ // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+ return null;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ }
+
+ // current gop starts before the current gop we want to align on. so increment gop
+ // index
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, { byteLength: 0, duration: 0, nalCount: 0 });
+
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new stream();
+
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ */
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this);
+
+ // Take output from multiple
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ }
+ // buffer incoming id3 tags until the final flush
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ }
+
+ // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+ this.pendingTracks.push(output.track);
+ this.pendingBoxes.push(output.boxes);
+ this.pendingBytes += output.boxes.byteLength;
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ }
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new stream();
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+
+ initSegment = mp4Generator.initSegment(this.pendingTracks);
+
+ // Create a new typed array to hold the init segment
+ event.initSegment = new Uint8Array(initSegment.byteLength);
+
+ // Create an init segment containing a moov
+ // and track definitions
+ event.initSegment.set(initSegment);
+
+ // Create a new typed array to hold the moof+mdats
+ event.data = new Uint8Array(this.pendingBytes);
+
+ // Append each moof+mdat (one per track) together
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ }
+
+ // Translate caption PTS times into second offsets into the
+ // video timeline for the segment, and add track info
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = caption.startPts - timelineStartPts;
+ caption.startTime /= 90e3;
+ caption.endTime = caption.endPts - timelineStartPts;
+ caption.endTime /= 90e3;
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ }
+
+ // Translate ID3 frame PTS times into second offsets into the
+ // video timeline for the segment
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = id3.pts - timelineStartPts;
+ id3.cueTime /= 90e3;
+ event.metadata.push(id3);
+ }
+ // We add this to every single emitted segment even though we only need
+ // it for the first
+ event.metadata.dispatchType = this.metadataStream.dispatchType;
+
+ // Reset stream state
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0;
+
+ // Emit the built segment
+ this.trigger('data', event);
+
+ // Only emit `done` if all tracks have been flushed and emitted
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.aacStream = new aac();
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ };
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.packetStream = new m2ts_1.TransportPacketStream();
+ pipeline.parseStream = new m2ts_1.TransportParseStream();
+ pipeline.elementaryStream = new m2ts_1.ElementaryStream();
+ pipeline.videoTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('video');
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts_1.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream;
+
+ // disassemble MPEG2-TS packets into elementary streams
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream);
+
+ // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+ pipeline.elementaryStream.pipe(pipeline.videoTimestampRolloverStream).pipe(pipeline.h264Stream);
+ pipeline.elementaryStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+
+ pipeline.elementaryStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ // Hook up CEA-608/708 caption stream
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length;
+
+ // scan the tracks listed in the metadata
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ }
+
+ // hook up the video segment stream to the first track with h264 data
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo;
+ // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+
+ // Set up the final part of the video pipeline
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ // hook up the segment streams once track metadata is delivered
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(audioTrack);
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ pipeline.videoTimestampRolloverStream.discontinuity();
+ }
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.timedMetadataTimestampRolloverStream) {
+ pipeline.timedMetadataTimestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ };
+
+ // feed incoming data to the front of the parsing pipeline
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+ hasFlushed = false;
+ }
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ };
+
+ // flush any buffered data
+ this.flush = function () {
+ hasFlushed = true;
+ // Start at the top of the pipeline and flush all pending work
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ // Caption data has to be reset when seeking outside buffered range
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+ _Transmuxer.prototype = new stream();
+
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES
+ };
+
+ var inspectMp4,
+ _textifyMp,
+ parseType$1 = probe.parseType,
+ parseMp4Date = function parseMp4Date(seconds) {
+ return new Date(seconds * 1000 - 2082844800000);
+ },
+ parseSampleFlags = function parseSampleFlags(flags) {
+ return {
+ isLeading: (flags[0] & 0x0c) >>> 2,
+ dependsOn: flags[0] & 0x03,
+ isDependedOn: (flags[1] & 0xc0) >>> 6,
+ hasRedundancy: (flags[1] & 0x30) >>> 4,
+ paddingValue: (flags[1] & 0x0e) >>> 1,
+ isNonSyncSample: flags[1] & 0x01,
+ degradationPriority: flags[2] << 8 | flags[3]
+ };
+ },
+ nalParse = function nalParse(avcStream) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ i,
+ length;
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ result.push('<span style=\'color:red;\'>MALFORMED DATA</span>');
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x01:
+ result.push('slice_layer_without_partitioning_rbsp');
+ break;
+ case 0x05:
+ result.push('slice_layer_without_partitioning_rbsp_idr');
+ break;
+ case 0x06:
+ result.push('sei_rbsp');
+ break;
+ case 0x07:
+ result.push('seq_parameter_set_rbsp');
+ break;
+ case 0x08:
+ result.push('pic_parameter_set_rbsp');
+ break;
+ case 0x09:
+ result.push('access_unit_delimiter_rbsp');
+ break;
+ default:
+ result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F);
+ break;
+ }
+ }
+ return result;
+ },
+
+
+ // registry of handlers for individual mp4 box types
+ parse$1 = {
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ avc1: function avc1(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ dataReferenceIndex: view.getUint16(6),
+ width: view.getUint16(24),
+ height: view.getUint16(26),
+ horizresolution: view.getUint16(28) + view.getUint16(30) / 16,
+ vertresolution: view.getUint16(32) + view.getUint16(34) / 16,
+ frameCount: view.getUint16(40),
+ depth: view.getUint16(74),
+ config: inspectMp4(data.subarray(78, data.byteLength))
+ };
+ },
+ avcC: function avcC(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ configurationVersion: data[0],
+ avcProfileIndication: data[1],
+ profileCompatibility: data[2],
+ avcLevelIndication: data[3],
+ lengthSizeMinusOne: data[4] & 0x03,
+ sps: [],
+ pps: []
+ },
+ numOfSequenceParameterSets = data[5] & 0x1f,
+ numOfPictureParameterSets,
+ nalSize,
+ offset,
+ i;
+
+ // iterate past any SPSs
+ offset = 6;
+ for (i = 0; i < numOfSequenceParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ // iterate past any PPSs
+ numOfPictureParameterSets = data[offset];
+ offset++;
+ for (i = 0; i < numOfPictureParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ return result;
+ },
+ btrt: function btrt(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ bufferSizeDB: view.getUint32(0),
+ maxBitrate: view.getUint32(4),
+ avgBitrate: view.getUint32(8)
+ };
+ },
+ esds: function esds(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ esId: data[6] << 8 | data[7],
+ streamPriority: data[8] & 0x1f,
+ decoderConfig: {
+ objectProfileIndication: data[11],
+ streamType: data[12] >>> 2 & 0x3f,
+ bufferSize: data[13] << 16 | data[14] << 8 | data[15],
+ maxBitrate: data[16] << 24 | data[17] << 16 | data[18] << 8 | data[19],
+ avgBitrate: data[20] << 24 | data[21] << 16 | data[22] << 8 | data[23],
+ decoderConfigDescriptor: {
+ tag: data[24],
+ length: data[25],
+ audioObjectType: data[26] >>> 3 & 0x1f,
+ samplingFrequencyIndex: (data[26] & 0x07) << 1 | data[27] >>> 7 & 0x01,
+ channelConfiguration: data[27] >>> 3 & 0x0f
+ }
+ }
+ };
+ },
+ ftyp: function ftyp(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ majorBrand: parseType$1(data.subarray(0, 4)),
+ minorVersion: view.getUint32(4),
+ compatibleBrands: []
+ },
+ i = 8;
+ while (i < data.byteLength) {
+ result.compatibleBrands.push(parseType$1(data.subarray(i, i + 4)));
+ i += 4;
+ }
+ return result;
+ },
+ dinf: function dinf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ dref: function dref(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ dataReferences: inspectMp4(data.subarray(8))
+ };
+ },
+ hdlr: function hdlr(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ handlerType: parseType$1(data.subarray(8, 12)),
+ name: ''
+ },
+ i = 8;
+
+ // parse out the name field
+ for (i = 24; i < data.byteLength; i++) {
+ if (data[i] === 0x00) {
+ // the name field is null-terminated
+ i++;
+ break;
+ }
+ result.name += String.fromCharCode(data[i]);
+ }
+ // decode UTF-8 to javascript's internal representation
+ // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ result.name = decodeURIComponent(escape(result.name));
+
+ return result;
+ },
+ mdat: function mdat(data) {
+ return {
+ byteLength: data.byteLength,
+ nals: nalParse(data)
+ };
+ },
+ mdhd: function mdhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ language,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ language: ''
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ // language is stored as an ISO-639-2/T code in an array of three 5-bit fields
+ // each field is the packed difference between its ASCII value and 0x60
+ language = view.getUint16(i);
+ result.language += String.fromCharCode((language >> 10) + 0x60);
+ result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60);
+ result.language += String.fromCharCode((language & 0x1f) + 0x60);
+
+ return result;
+ },
+ mdia: function mdia(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mfhd: function mfhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sequenceNumber: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ },
+ minf: function minf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ mp4a: function mp4a(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ // 6 bytes reserved
+ dataReferenceIndex: view.getUint16(6),
+ // 4 + 4 bytes reserved
+ channelcount: view.getUint16(16),
+ samplesize: view.getUint16(18),
+ // 2 bytes pre_defined
+ // 2 bytes reserved
+ samplerate: view.getUint16(24) + view.getUint16(26) / 65536
+ };
+
+ // if there are more bytes to process, assume this is an ISO/IEC
+ // 14496-14 MP4AudioSampleEntry and parse the ESDBox
+ if (data.byteLength > 28) {
+ result.streamDescriptor = inspectMp4(data.subarray(28))[0];
+ }
+ return result;
+ },
+ moof: function moof(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ moov: function moov(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvex: function mvex(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvhd: function mvhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+
+ // convert fixed-point, base 16 back to a number
+ result.rate = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ i += 2 * 4;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ i += 6 * 4;
+ result.nextTrackId = view.getUint32(i);
+ return result;
+ },
+ pdin: function pdin(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ rate: view.getUint32(4),
+ initialDelay: view.getUint32(8)
+ };
+ },
+ sdtp: function sdtp(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ i;
+
+ for (i = 4; i < data.byteLength; i++) {
+ result.samples.push({
+ dependsOn: (data[i] & 0x30) >> 4,
+ isDependedOn: (data[i] & 0x0c) >> 2,
+ hasRedundancy: data[i] & 0x03
+ });
+ }
+ return result;
+ },
+ sidx: function sidx(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ references: [],
+ referenceId: view.getUint32(4),
+ timescale: view.getUint32(8),
+ earliestPresentationTime: view.getUint32(12),
+ firstOffset: view.getUint32(16)
+ },
+ referenceCount = view.getUint16(22),
+ i;
+
+ for (i = 24; referenceCount; i += 12, referenceCount--) {
+ result.references.push({
+ referenceType: (data[i] & 0x80) >>> 7,
+ referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+ subsegmentDuration: view.getUint32(i + 4),
+ startsWithSap: !!(data[i + 8] & 0x80),
+ sapType: (data[i + 8] & 0x70) >>> 4,
+ sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+ });
+ }
+
+ return result;
+ },
+ smhd: function smhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ balance: data[4] + data[5] / 256
+ };
+ },
+ stbl: function stbl(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ stco: function stco(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ chunkOffsets: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+ for (i = 8; entryCount; i += 4, entryCount--) {
+ result.chunkOffsets.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stsc: function stsc(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ entryCount = view.getUint32(4),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleToChunks: []
+ },
+ i;
+ for (i = 8; entryCount; i += 12, entryCount--) {
+ result.sampleToChunks.push({
+ firstChunk: view.getUint32(i),
+ samplesPerChunk: view.getUint32(i + 4),
+ sampleDescriptionIndex: view.getUint32(i + 8)
+ });
+ }
+ return result;
+ },
+ stsd: function stsd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleDescriptions: inspectMp4(data.subarray(8))
+ };
+ },
+ stsz: function stsz(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleSize: view.getUint32(4),
+ entries: []
+ },
+ i;
+ for (i = 12; i < data.byteLength; i += 4) {
+ result.entries.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stts: function stts(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ timeToSamples: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+
+ for (i = 8; entryCount; i += 8, entryCount--) {
+ result.timeToSamples.push({
+ sampleCount: view.getUint32(i),
+ sampleDelta: view.getUint32(i + 4)
+ });
+ }
+ return result;
+ },
+ styp: function styp(data) {
+ return parse$1.ftyp(data);
+ },
+ tfdt: function tfdt(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ baseMediaDecodeTime: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ if (result.version === 1) {
+ result.baseMediaDecodeTime *= Math.pow(2, 32);
+ result.baseMediaDecodeTime += data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11];
+ }
+ return result;
+ },
+ tfhd: function tfhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4)
+ },
+ baseDataOffsetPresent = result.flags[2] & 0x01,
+ sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+ defaultSampleDurationPresent = result.flags[2] & 0x08,
+ defaultSampleSizePresent = result.flags[2] & 0x10,
+ defaultSampleFlagsPresent = result.flags[2] & 0x20,
+ durationIsEmpty = result.flags[0] & 0x010000,
+ defaultBaseIsMoof = result.flags[0] & 0x020000,
+ i;
+
+ i = 8;
+ if (baseDataOffsetPresent) {
+ i += 4; // truncate top 4 bytes
+ // FIXME: should we read the full 64 bits?
+ result.baseDataOffset = view.getUint32(12);
+ i += 4;
+ }
+ if (sampleDescriptionIndexPresent) {
+ result.sampleDescriptionIndex = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleDurationPresent) {
+ result.defaultSampleDuration = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleSizePresent) {
+ result.defaultSampleSize = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleFlagsPresent) {
+ result.defaultSampleFlags = view.getUint32(i);
+ }
+ if (durationIsEmpty) {
+ result.durationIsEmpty = true;
+ }
+ if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+ result.baseDataOffsetIsMoof = true;
+ }
+ return result;
+ },
+ tkhd: function tkhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ i += 2 * 4;
+ result.layer = view.getUint16(i);
+ i += 2;
+ result.alternateGroup = view.getUint16(i);
+ i += 2;
+ // convert fixed-point, base 16 back to a number
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ result.width = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.height = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ return result;
+ },
+ traf: function traf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trak: function trak(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trex: function trex(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4),
+ defaultSampleDescriptionIndex: view.getUint32(8),
+ defaultSampleDuration: view.getUint32(12),
+ defaultSampleSize: view.getUint32(16),
+ sampleDependsOn: data[20] & 0x03,
+ sampleIsDependedOn: (data[21] & 0xc0) >> 6,
+ sampleHasRedundancy: (data[21] & 0x30) >> 4,
+ samplePaddingValue: (data[21] & 0x0e) >> 1,
+ sampleIsDifferenceSample: !!(data[21] & 0x01),
+ sampleDegradationPriority: view.getUint16(22)
+ };
+ },
+ trun: function trun(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+
+ // Flag interpretation
+ dataOffsetPresent = result.flags[2] & 0x01,
+ // compare with 2nd byte of 0x1
+ firstSampleFlagsPresent = result.flags[2] & 0x04,
+ // compare with 2nd byte of 0x4
+ sampleDurationPresent = result.flags[1] & 0x01,
+ // compare with 2nd byte of 0x100
+ sampleSizePresent = result.flags[1] & 0x02,
+ // compare with 2nd byte of 0x200
+ sampleFlagsPresent = result.flags[1] & 0x04,
+ // compare with 2nd byte of 0x400
+ sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+ // compare with 2nd byte of 0x800
+ sampleCount = view.getUint32(4),
+ offset = 8,
+ sample;
+
+ if (dataOffsetPresent) {
+ // 32 bit signed integer
+ result.dataOffset = view.getInt32(offset);
+ offset += 4;
+ }
+
+ // Overrides the flags for the first sample only. The order of
+ // optional values will be: duration, size, compositionTimeOffset
+ if (firstSampleFlagsPresent && sampleCount) {
+ sample = {
+ flags: parseSampleFlags(data.subarray(offset, offset + 4))
+ };
+ offset += 4;
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ sampleCount--;
+ }
+
+ while (sampleCount--) {
+ sample = {};
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleFlagsPresent) {
+ sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ }
+ return result;
+ },
+ 'url ': function url(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ },
+ vmhd: function vmhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ graphicsmode: view.getUint16(4),
+ opcolor: new Uint16Array([view.getUint16(6), view.getUint16(8), view.getUint16(10)])
+ };
+ }
+ };
+
+ /**
+ * Return a javascript array of box objects parsed from an ISO base
+ * media file.
+ * @param data {Uint8Array} the binary data of the media to be inspected
+ * @return {array} a javascript array of potentially nested box objects
+ */
+ inspectMp4 = function inspectMp4(data) {
+ var i = 0,
+ result = [],
+ view,
+ size,
+ type,
+ end,
+ box;
+
+ // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API
+ var ab = new ArrayBuffer(data.length);
+ var v = new Uint8Array(ab);
+ for (var z = 0; z < data.length; ++z) {
+ v[z] = data[z];
+ }
+ view = new DataView(ab);
+
+ while (i < data.byteLength) {
+ // parse box data
+ size = view.getUint32(i);
+ type = parseType$1(data.subarray(i + 4, i + 8));
+ end = size > 1 ? i + size : data.byteLength;
+
+ // parse type-specific data
+ box = (parse$1[type] || function (data) {
+ return {
+ data: data
+ };
+ })(data.subarray(i + 8, end));
+ box.size = size;
+ box.type = type;
+
+ // store this box and move to the next
+ result.push(box);
+ i = end;
+ }
+ return result;
+ };
+
+ /**
+ * Returns a textual representation of the javascript represtentation
+ * of an MP4 file. You can use it as an alternative to
+ * JSON.stringify() to compare inspected MP4s.
+ * @param inspectedMp4 {array} the parsed array of boxes in an MP4
+ * file
+ * @param depth {number} (optional) the number of ancestor boxes of
+ * the elements of inspectedMp4. Assumed to be zero if unspecified.
+ * @return {string} a text representation of the parsed MP4
+ */
+ _textifyMp = function textifyMp4(inspectedMp4, depth) {
+ var indent;
+ depth = depth || 0;
+ indent = new Array(depth * 2 + 1).join(' ');
+
+ // iterate over all the boxes
+ return inspectedMp4.map(function (box, index) {
+
+ // list the box type first at the current indentation level
+ return indent + box.type + '\n' +
+
+ // the type is already included and handle child boxes separately
+ Object.keys(box).filter(function (key) {
+ return key !== 'type' && key !== 'boxes';
+
+ // output all the box properties
+ }).map(function (key) {
+ var prefix = indent + ' ' + key + ': ',
+ value = box[key];
+
+ // print out raw bytes as hexademical
+ if (value instanceof Uint8Array || value instanceof Uint32Array) {
+ var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)).map(function (byte) {
+ return ' ' + ('00' + byte.toString(16)).slice(-2);
+ }).join('').match(/.{1,24}/g);
+ if (!bytes) {
+ return prefix + '<>';
+ }
+ if (bytes.length === 1) {
+ return prefix + '<' + bytes.join('').slice(1) + '>';
+ }
+ return prefix + '<\n' + bytes.map(function (line) {
+ return indent + ' ' + line;
+ }).join('\n') + '\n' + indent + ' >';
+ }
+
+ // stringify generic objects
+ return prefix + JSON.stringify(value, null, 2).split('\n').map(function (line, index) {
+ if (index === 0) {
+ return line;
+ }
+ return indent + ' ' + line;
+ }).join('\n');
+ }).join('\n') + (
+
+ // recursively textify the child boxes
+ box.boxes ? '\n' + _textifyMp(box.boxes, depth + 1) : '');
+ }).join('\n');
+ };
+
+ var mp4Inspector = {
+ inspect: inspectMp4,
+ textify: _textifyMp,
+ parseTfdt: parse$1.tfdt,
+ parseHdlr: parse$1.hdlr,
+ parseTfhd: parse$1.tfhd,
+ parseTrun: parse$1.trun
+ };
+
+ var discardEmulationPreventionBytes$1 = captionPacketParser.discardEmulationPreventionBytes;
+ var CaptionStream$1 = captionStream.CaptionStream;
+
+ /**
+ * Maps an offset in the mdat to a sample based on the the size of the samples.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Number} offset - The offset into the mdat
+ * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+ * @return {?Object} The matching sample, or null if no match was found.
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var mapToSample = function mapToSample(offset, samples) {
+ var approximateOffset = offset;
+
+ for (var i = 0; i < samples.length; i++) {
+ var sample = samples[i];
+
+ if (approximateOffset < sample.size) {
+ return sample;
+ }
+
+ approximateOffset -= sample.size;
+ }
+
+ return null;
+ };
+
+ /**
+ * Finds SEI nal units contained in a Media Data Box.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Uint8Array} avcStream - The bytes of the mdat
+ * @param {Object[]} samples - The samples parsed out by `parseSamples`
+ * @param {Number} trackId - The trackId of this video track
+ * @return {Object[]} seiNals - the parsed SEI NALUs found.
+ * The contents of the seiNal should match what is expected by
+ * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+ *
+ * @see ISO-BMFF-12/2015, Section 8.1.1
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ **/
+ var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ seiNal,
+ i,
+ length,
+ lastMatchedSample;
+
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // Bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x06:
+ var data = avcStream.subarray(i + 1, i + 1 + length);
+ var matchingSample = mapToSample(i, samples);
+
+ seiNal = {
+ nalUnitType: 'sei_rbsp',
+ size: length,
+ data: data,
+ escapedRBSP: discardEmulationPreventionBytes$1(data),
+ trackId: trackId
+ };
+
+ if (matchingSample) {
+ seiNal.pts = matchingSample.pts;
+ seiNal.dts = matchingSample.dts;
+ lastMatchedSample = matchingSample;
+ } else {
+ // If a matching sample cannot be found, use the last
+ // sample's values as they should be as close as possible
+ seiNal.pts = lastMatchedSample.pts;
+ seiNal.dts = lastMatchedSample.dts;
+ }
+
+ result.push(seiNal);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ /**
+ * Parses sample information out of Track Run Boxes and calculates
+ * the absolute presentation and decode timestamps of each sample.
+ *
+ * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+ * @param {Number} baseMediaDecodeTime - base media decode time from tfdt
+ @see ISO-BMFF-12/2015, Section 8.8.12
+ * @param {Object} tfhd - The parsed Track Fragment Header
+ * @see inspect.parseTfhd
+ * @return {Object[]} the parsed samples
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
+ var currentDts = baseMediaDecodeTime;
+ var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+ var defaultSampleSize = tfhd.defaultSampleSize || 0;
+ var trackId = tfhd.trackId;
+ var allSamples = [];
+
+ truns.forEach(function (trun) {
+ // Note: We currently do not parse the sample table as well
+ // as the trun. It's possible some sources will require this.
+ // moov > trak > mdia > minf > stbl
+ var trackRun = mp4Inspector.parseTrun(trun);
+ var samples = trackRun.samples;
+
+ samples.forEach(function (sample) {
+ if (sample.duration === undefined) {
+ sample.duration = defaultSampleDuration;
+ }
+ if (sample.size === undefined) {
+ sample.size = defaultSampleSize;
+ }
+ sample.trackId = trackId;
+ sample.dts = currentDts;
+ if (sample.compositionTimeOffset === undefined) {
+ sample.compositionTimeOffset = 0;
+ }
+ sample.pts = currentDts + sample.compositionTimeOffset;
+
+ currentDts += sample.duration;
+ });
+
+ allSamples = allSamples.concat(samples);
+ });
+
+ return allSamples;
+ };
+
+ /**
+ * Parses out caption nals from an FMP4 segment's video tracks.
+ *
+ * @param {Uint8Array} segment - The bytes of a single segment
+ * @param {Number} videoTrackId - The trackId of a video track in the segment
+ * @return {Object.<Number, Object[]>} A mapping of video trackId to
+ * a list of seiNals found in that track
+ **/
+ var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
+ // To get the samples
+ var trafs = probe.findBox(segment, ['moof', 'traf']);
+ // To get SEI NAL units
+ var mdats = probe.findBox(segment, ['mdat']);
+ var captionNals = {};
+ var mdatTrafPairs = [];
+
+ // Pair up each traf with a mdat as moofs and mdats are in pairs
+ mdats.forEach(function (mdat, index) {
+ var matchingTraf = trafs[index];
+ mdatTrafPairs.push({
+ mdat: mdat,
+ traf: matchingTraf
+ });
+ });
+
+ mdatTrafPairs.forEach(function (pair) {
+ var mdat = pair.mdat;
+ var traf = pair.traf;
+ var tfhd = probe.findBox(traf, ['tfhd']);
+ // Exactly 1 tfhd per traf
+ var headerInfo = mp4Inspector.parseTfhd(tfhd[0]);
+ var trackId = headerInfo.trackId;
+ var tfdt = probe.findBox(traf, ['tfdt']);
+ // Either 0 or 1 tfdt per traf
+ var baseMediaDecodeTime = tfdt.length > 0 ? mp4Inspector.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
+ var truns = probe.findBox(traf, ['trun']);
+ var samples;
+ var seiNals;
+
+ // Only parse video data for the chosen video track
+ if (videoTrackId === trackId && truns.length > 0) {
+ samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+
+ seiNals = findSeiNals(mdat, samples, trackId);
+
+ if (!captionNals[trackId]) {
+ captionNals[trackId] = [];
+ }
+
+ captionNals[trackId] = captionNals[trackId].concat(seiNals);
+ }
+ });
+
+ return captionNals;
+ };
+
+ /**
+ * Parses out inband captions from an MP4 container and returns
+ * caption objects that can be used by WebVTT and the TextTrack API.
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+ * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number} trackId - The id of the video track to parse
+ * @param {Number} timescale - The timescale for the video track from the init segment
+ *
+ * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+ * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+ * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+ * @return {String} parsedCaptions[].text - The visible content of the caption
+ **/
+ var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
+ var seiNals;
+
+ if (!trackId) {
+ return null;
+ }
+
+ seiNals = parseCaptionNals(segment, trackId);
+
+ return {
+ seiNals: seiNals[trackId],
+ timescale: timescale
+ };
+ };
+
+ /**
+ * Converts SEI NALUs into captions that can be used by video.js
+ **/
+ var CaptionParser = function CaptionParser() {
+ var isInitialized = false;
+ var captionStream$$1;
+
+ // Stores segments seen before trackId and timescale are set
+ var segmentCache;
+ // Stores video track ID of the track being parsed
+ var trackId;
+ // Stores the timescale of the track being parsed
+ var timescale;
+ // Stores captions parsed so far
+ var parsedCaptions;
+
+ /**
+ * A method to indicate whether a CaptionParser has been initalized
+ * @returns {Boolean}
+ **/
+ this.isInitialized = function () {
+ return isInitialized;
+ };
+
+ /**
+ * Initializes the underlying CaptionStream, SEI NAL parsing
+ * and management, and caption collection
+ **/
+ this.init = function () {
+ captionStream$$1 = new CaptionStream$1();
+ isInitialized = true;
+
+ // Collect dispatched captions
+ captionStream$$1.on('data', function (event) {
+ // Convert to seconds in the source's timescale
+ event.startTime = event.startPts / timescale;
+ event.endTime = event.endPts / timescale;
+
+ parsedCaptions.captions.push(event);
+ parsedCaptions.captionStreams[event.stream] = true;
+ });
+ };
+
+ /**
+ * Determines if a new video track will be selected
+ * or if the timescale changed
+ * @return {Boolean}
+ **/
+ this.isNewInit = function (videoTrackIds, timescales) {
+ if (videoTrackIds && videoTrackIds.length === 0 || timescales && (typeof timescales === 'undefined' ? 'undefined' : _typeof(timescales)) === 'object' && Object.keys(timescales).length === 0) {
+ return false;
+ }
+
+ return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+ };
+
+ /**
+ * Parses out SEI captions and interacts with underlying
+ * CaptionStream to return dispatched captions
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+ * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+ * @see parseEmbeddedCaptions
+ * @see m2ts/caption-stream.js
+ **/
+ this.parse = function (segment, videoTrackIds, timescales) {
+ var parsedData;
+
+ if (!this.isInitialized()) {
+ return null;
+
+ // This is not likely to be a video segment
+ } else if (!videoTrackIds || !timescales) {
+ return null;
+ } else if (this.isNewInit(videoTrackIds, timescales)) {
+ // Use the first video track only as there is no
+ // mechanism to switch to other video tracks
+ trackId = videoTrackIds[0];
+ timescale = timescales[trackId];
+
+ // If an init segment has not been seen yet, hold onto segment
+ // data until we have one
+ } else if (!trackId || !timescale) {
+ segmentCache.push(segment);
+ return null;
+ }
+
+ // Now that a timescale and trackId is set, parse cached segments
+ while (segmentCache.length > 0) {
+ var cachedSegment = segmentCache.shift();
+
+ this.parse(cachedSegment, videoTrackIds, timescales);
+ }
+
+ parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+
+ if (parsedData === null || !parsedData.seiNals) {
+ return null;
+ }
+
+ this.pushNals(parsedData.seiNals);
+ // Force the parsed captions to be dispatched
+ this.flushStream();
+
+ return parsedCaptions;
+ };
+
+ /**
+ * Pushes SEI NALUs onto CaptionStream
+ * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+ * Assumes that `parseCaptionNals` has been called first
+ * @see m2ts/caption-stream.js
+ **/
+ this.pushNals = function (nals) {
+ if (!this.isInitialized() || !nals || nals.length === 0) {
+ return null;
+ }
+
+ nals.forEach(function (nal) {
+ captionStream$$1.push(nal);
+ });
+ };
+
+ /**
+ * Flushes underlying CaptionStream to dispatch processed, displayable captions
+ * @see m2ts/caption-stream.js
+ **/
+ this.flushStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.flush();
+ };
+
+ /**
+ * Reset caption buckets for new data
+ **/
+ this.clearParsedCaptions = function () {
+ parsedCaptions.captions = [];
+ parsedCaptions.captionStreams = {};
+ };
+
+ /**
+ * Resets underlying CaptionStream
+ * @see m2ts/caption-stream.js
+ **/
+ this.resetCaptionStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.reset();
+ };
+
+ /**
+ * Convenience method to clear all captions flushed from the
+ * CaptionStream and still being parsed
+ * @see m2ts/caption-stream.js
+ **/
+ this.clearAllCaptions = function () {
+ this.clearParsedCaptions();
+ this.resetCaptionStream();
+ };
+
+ /**
+ * Reset caption parser
+ **/
+ this.reset = function () {
+ segmentCache = [];
+ trackId = null;
+ timescale = null;
+
+ if (!parsedCaptions) {
+ parsedCaptions = {
+ captions: [],
+ // CC1, CC2, CC3, CC4
+ captionStreams: {}
+ };
+ } else {
+ this.clearParsedCaptions();
+ }
+
+ this.resetCaptionStream();
+ };
+
+ this.reset();
+ };
+
+ var captionParser = CaptionParser;
+
+ var mp4 = {
+ generator: mp4Generator,
+ probe: probe,
+ Transmuxer: transmuxer.Transmuxer,
+ AudioSegmentStream: transmuxer.AudioSegmentStream,
+ VideoSegmentStream: transmuxer.VideoSegmentStream,
+ CaptionParser: captionParser
+ };
+ var mp4_6 = mp4.CaptionParser;
+
+ var parsePid = function parsePid(packet) {
+ var pid = packet[1] & 0x1f;
+ pid <<= 8;
+ pid |= packet[2];
+ return pid;
+ };
+
+ var parsePayloadUnitStartIndicator = function parsePayloadUnitStartIndicator(packet) {
+ return !!(packet[1] & 0x40);
+ };
+
+ var parseAdaptionField = function parseAdaptionField(packet) {
+ var offset = 0;
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[4] + 1;
+ }
+ return offset;
+ };
+
+ var parseType$2 = function parseType(packet, pmtPid) {
+ var pid = parsePid(packet);
+ if (pid === 0) {
+ return 'pat';
+ } else if (pid === pmtPid) {
+ return 'pmt';
+ } else if (pmtPid) {
+ return 'pes';
+ }
+ return null;
+ };
+
+ var parsePat = function parsePat(packet) {
+ var pusi = parsePayloadUnitStartIndicator(packet);
+ var offset = 4 + parseAdaptionField(packet);
+
+ if (pusi) {
+ offset += packet[offset] + 1;
+ }
+
+ return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];
+ };
+
+ var parsePmt = function parsePmt(packet) {
+ var programMapTable = {};
+ var pusi = parsePayloadUnitStartIndicator(packet);
+ var payloadOffset = 4 + parseAdaptionField(packet);
+
+ if (pusi) {
+ payloadOffset += packet[payloadOffset] + 1;
+ }
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(packet[payloadOffset + 5] & 0x01)) {
+ return;
+ }
+
+ var sectionLength, tableEnd, programInfoLength;
+ // the mapping table ends at the end of the current section
+ sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11];
+
+ // advance the offset to the first entry in the mapping table
+ var offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var i = payloadOffset + offset;
+ // add an entry that maps the elementary_pid to the stream_type
+ programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i];
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;
+ }
+ return programMapTable;
+ };
+
+ var parsePesType = function parsePesType(packet, programMapTable) {
+ var pid = parsePid(packet);
+ var type = programMapTable[pid];
+ switch (type) {
+ case streamTypes.H264_STREAM_TYPE:
+ return 'video';
+ case streamTypes.ADTS_STREAM_TYPE:
+ return 'audio';
+ case streamTypes.METADATA_STREAM_TYPE:
+ return 'timed-metadata';
+ default:
+ return null;
+ }
+ };
+
+ var parsePesTime = function parsePesTime(packet) {
+ var pusi = parsePayloadUnitStartIndicator(packet);
+ if (!pusi) {
+ return null;
+ }
+
+ var offset = 4 + parseAdaptionField(packet);
+
+ if (offset >= packet.byteLength) {
+ // From the H 222.0 MPEG-TS spec
+ // "For transport stream packets carrying PES packets, stuffing is needed when there
+ // is insufficient PES packet data to completely fill the transport stream packet
+ // payload bytes. Stuffing is accomplished by defining an adaptation field longer than
+ // the sum of the lengths of the data elements in it, so that the payload bytes
+ // remaining after the adaptation field exactly accommodates the available PES packet
+ // data."
+ //
+ // If the offset is >= the length of the packet, then the packet contains no data
+ // and instead is just adaption field stuffing bytes
+ return null;
+ }
+
+ var pes = null;
+ var ptsDtsFlags;
+
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = packet[offset + 7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ pes = {};
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ return pes;
+ };
+
+ var parseNalUnitType = function parseNalUnitType(type) {
+ switch (type) {
+ case 0x05:
+ return 'slice_layer_without_partitioning_rbsp_idr';
+ case 0x06:
+ return 'sei_rbsp';
+ case 0x07:
+ return 'seq_parameter_set_rbsp';
+ case 0x08:
+ return 'pic_parameter_set_rbsp';
+ case 0x09:
+ return 'access_unit_delimiter_rbsp';
+ default:
+ return null;
+ }
+ };
+
+ var videoPacketContainsKeyFrame = function videoPacketContainsKeyFrame(packet) {
+ var offset = 4 + parseAdaptionField(packet);
+ var frameBuffer = packet.subarray(offset);
+ var frameI = 0;
+ var frameSyncPoint = 0;
+ var foundKeyFrame = false;
+ var nalType;
+
+ // advance the sync point to a NAL start, if necessary
+ for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {
+ if (frameBuffer[frameSyncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ frameI = frameSyncPoint + 5;
+ break;
+ }
+ }
+
+ while (frameI < frameBuffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (frameBuffer[frameI]) {
+ case 0:
+ // skip past non-sync sequences
+ if (frameBuffer[frameI - 1] !== 0) {
+ frameI += 2;
+ break;
+ } else if (frameBuffer[frameI - 2] !== 0) {
+ frameI++;
+ break;
+ }
+
+ if (frameSyncPoint + 3 !== frameI - 2) {
+ nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+ if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+ foundKeyFrame = true;
+ }
+ }
+
+ // drop trailing zeroes
+ do {
+ frameI++;
+ } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);
+ frameSyncPoint = frameI - 2;
+ frameI += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {
+ frameI += 3;
+ break;
+ }
+
+ nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+ if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+ foundKeyFrame = true;
+ }
+ frameSyncPoint = frameI - 2;
+ frameI += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ frameI += 3;
+ break;
+ }
+ }
+ frameBuffer = frameBuffer.subarray(frameSyncPoint);
+ frameI -= frameSyncPoint;
+ frameSyncPoint = 0;
+ // parse the final nal
+ if (frameBuffer && frameBuffer.byteLength > 3) {
+ nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+ if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+ foundKeyFrame = true;
+ }
+ }
+
+ return foundKeyFrame;
+ };
+
+ var probe$1 = {
+ parseType: parseType$2,
+ parsePat: parsePat,
+ parsePmt: parsePmt,
+ parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,
+ parsePesType: parsePesType,
+ parsePesTime: parsePesTime,
+ videoPacketContainsKeyFrame: videoPacketContainsKeyFrame
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2016 Brightcove
+ * All rights reserved.
+ *
+ * Utilities to detect basic properties and metadata about Aac data.
+ */
+
+ var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ var parseSyncSafeInteger$1 = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ };
+
+ // return a percent-encoded representation of the specified byte range
+ // @see http://en.wikipedia.org/wiki/Percent-encoding
+ var percentEncode$1 = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ };
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ var parseIso88591$1 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line
+ };
+
+ var parseId3TagSize = function parseId3TagSize(header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ var parseAdtsSize = function parseAdtsSize(header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ var parseType$3 = function parseType(header, byteIndex) {
+ if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {
+ return 'timed-metadata';
+ } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {
+ return 'audio';
+ }
+ return null;
+ };
+
+ var parseSampleRate = function parseSampleRate(packet) {
+ var i = 0;
+
+ while (i + 5 < packet.length) {
+ if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+ return ADTS_SAMPLING_FREQUENCIES$1[(packet[i + 2] & 0x3c) >>> 2];
+ }
+
+ return null;
+ };
+
+ var parseAacTimestamp = function parseAacTimestamp(packet) {
+ var frameStart, frameSize, frame, frameHeader;
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (packet[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger$1(packet.subarray(10, 14));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger$1(packet.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ return null;
+ }
+ frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);
+
+ if (frameHeader === 'PRIV') {
+ frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);
+
+ for (var i = 0; i < frame.byteLength; i++) {
+ if (frame[i] === 0) {
+ var owner = parseIso88591$1(frame, 0, i);
+ if (owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.subarray(i + 1);
+ var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+ size *= 4;
+ size += d[7] & 0x03;
+
+ return size;
+ }
+ break;
+ }
+ }
+ }
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < packet.byteLength);
+ return null;
+ };
+
+ var probe$2 = {
+ parseId3TagSize: parseId3TagSize,
+ parseAdtsSize: parseAdtsSize,
+ parseType: parseType$3,
+ parseSampleRate: parseSampleRate,
+ parseAacTimestamp: parseAacTimestamp
+ };
+
+ var handleRollover$1 = timestampRolloverStream.handleRollover;
+ var probe$3 = {};
+ probe$3.ts = probe$1;
+ probe$3.aac = probe$2;
+
+ var PES_TIMESCALE = 90000,
+ MP2T_PACKET_LENGTH$1 = 188,
+ // bytes
+ SYNC_BYTE$1 = 0x47;
+
+ var isLikelyAacData$1 = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * walks through segment data looking for pat and pmt packets to parse out
+ * program map table information
+ */
+ var parsePsi_ = function parsePsi_(bytes, pmt) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH$1,
+ packet,
+ type;
+
+ while (endIndex < bytes.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$3.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pat':
+ if (!pmt.pid) {
+ pmt.pid = probe$3.ts.parsePat(packet);
+ }
+ break;
+ case 'pmt':
+ if (!pmt.table) {
+ pmt.table = probe$3.ts.parsePmt(packet);
+ }
+ break;
+ default:
+ break;
+ }
+
+ // Found the pat and pmt, we can stop walking the segment
+ if (pmt.pid && pmt.table) {
+ return;
+ }
+
+ startIndex += MP2T_PACKET_LENGTH$1;
+ endIndex += MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+ };
+
+ /**
+ * walks through the segment data from the start and end to get timing information
+ * for the first and last audio pes packets
+ */
+ var parseAudioPes_ = function parseAudioPes_(bytes, pmt, result) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH$1,
+ packet,
+ type,
+ pesType,
+ pusi,
+ parsed;
+
+ var endLoop = false;
+
+ // Start walking from start of segment to get first audio packet
+ while (endIndex < bytes.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$3.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$3.ts.parsePesType(packet, pmt.table);
+ pusi = probe$3.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'audio' && pusi) {
+ parsed = probe$3.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'audio';
+ result.audio.push(parsed);
+ endLoop = true;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop) {
+ break;
+ }
+
+ startIndex += MP2T_PACKET_LENGTH$1;
+ endIndex += MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // Start walking from end of segment to get last audio packet
+ endIndex = bytes.byteLength;
+ startIndex = endIndex - MP2T_PACKET_LENGTH$1;
+ endLoop = false;
+ while (startIndex >= 0) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$3.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$3.ts.parsePesType(packet, pmt.table);
+ pusi = probe$3.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'audio' && pusi) {
+ parsed = probe$3.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'audio';
+ result.audio.push(parsed);
+ endLoop = true;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop) {
+ break;
+ }
+
+ startIndex -= MP2T_PACKET_LENGTH$1;
+ endIndex -= MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex--;
+ endIndex--;
+ }
+ };
+
+ /**
+ * walks through the segment data from the start and end to get timing information
+ * for the first and last video pes packets as well as timing information for the first
+ * key frame.
+ */
+ var parseVideoPes_ = function parseVideoPes_(bytes, pmt, result) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH$1,
+ packet,
+ type,
+ pesType,
+ pusi,
+ parsed,
+ frame,
+ i,
+ pes;
+
+ var endLoop = false;
+
+ var currentFrame = {
+ data: [],
+ size: 0
+ };
+
+ // Start walking from start of segment to get first video packet
+ while (endIndex < bytes.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$3.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$3.ts.parsePesType(packet, pmt.table);
+ pusi = probe$3.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'video') {
+ if (pusi && !endLoop) {
+ parsed = probe$3.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'video';
+ result.video.push(parsed);
+ endLoop = true;
+ }
+ }
+ if (!result.firstKeyFrame) {
+ if (pusi) {
+ if (currentFrame.size !== 0) {
+ frame = new Uint8Array(currentFrame.size);
+ i = 0;
+ while (currentFrame.data.length) {
+ pes = currentFrame.data.shift();
+ frame.set(pes, i);
+ i += pes.byteLength;
+ }
+ if (probe$3.ts.videoPacketContainsKeyFrame(frame)) {
+ result.firstKeyFrame = probe$3.ts.parsePesTime(frame);
+ result.firstKeyFrame.type = 'video';
+ }
+ currentFrame.size = 0;
+ }
+ }
+ currentFrame.data.push(packet);
+ currentFrame.size += packet.byteLength;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop && result.firstKeyFrame) {
+ break;
+ }
+
+ startIndex += MP2T_PACKET_LENGTH$1;
+ endIndex += MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // Start walking from end of segment to get last video packet
+ endIndex = bytes.byteLength;
+ startIndex = endIndex - MP2T_PACKET_LENGTH$1;
+ endLoop = false;
+ while (startIndex >= 0) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$3.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$3.ts.parsePesType(packet, pmt.table);
+ pusi = probe$3.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'video' && pusi) {
+ parsed = probe$3.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'video';
+ result.video.push(parsed);
+ endLoop = true;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop) {
+ break;
+ }
+
+ startIndex -= MP2T_PACKET_LENGTH$1;
+ endIndex -= MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex--;
+ endIndex--;
+ }
+ };
+
+ /**
+ * Adjusts the timestamp information for the segment to account for
+ * rollover and convert to seconds based on pes packet timescale (90khz clock)
+ */
+ var adjustTimestamp_ = function adjustTimestamp_(segmentInfo, baseTimestamp) {
+ if (segmentInfo.audio && segmentInfo.audio.length) {
+ var audioBaseTimestamp = baseTimestamp;
+ if (typeof audioBaseTimestamp === 'undefined') {
+ audioBaseTimestamp = segmentInfo.audio[0].dts;
+ }
+ segmentInfo.audio.forEach(function (info) {
+ info.dts = handleRollover$1(info.dts, audioBaseTimestamp);
+ info.pts = handleRollover$1(info.pts, audioBaseTimestamp);
+ // time in seconds
+ info.dtsTime = info.dts / PES_TIMESCALE;
+ info.ptsTime = info.pts / PES_TIMESCALE;
+ });
+ }
+
+ if (segmentInfo.video && segmentInfo.video.length) {
+ var videoBaseTimestamp = baseTimestamp;
+ if (typeof videoBaseTimestamp === 'undefined') {
+ videoBaseTimestamp = segmentInfo.video[0].dts;
+ }
+ segmentInfo.video.forEach(function (info) {
+ info.dts = handleRollover$1(info.dts, videoBaseTimestamp);
+ info.pts = handleRollover$1(info.pts, videoBaseTimestamp);
+ // time in seconds
+ info.dtsTime = info.dts / PES_TIMESCALE;
+ info.ptsTime = info.pts / PES_TIMESCALE;
+ });
+ if (segmentInfo.firstKeyFrame) {
+ var frame = segmentInfo.firstKeyFrame;
+ frame.dts = handleRollover$1(frame.dts, videoBaseTimestamp);
+ frame.pts = handleRollover$1(frame.pts, videoBaseTimestamp);
+ // time in seconds
+ frame.dtsTime = frame.dts / PES_TIMESCALE;
+ frame.ptsTime = frame.dts / PES_TIMESCALE;
+ }
+ }
+ };
+
+ /**
+ * inspects the aac data stream for start and end time information
+ */
+ var inspectAac_ = function inspectAac_(bytes) {
+ var endLoop = false,
+ audioCount = 0,
+ sampleRate = null,
+ timestamp = null,
+ frameSize = 0,
+ byteIndex = 0,
+ packet;
+
+ while (bytes.length - byteIndex >= 3) {
+ var type = probe$3.aac.parseType(bytes, byteIndex);
+ switch (type) {
+ case 'timed-metadata':
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (bytes.length - byteIndex < 10) {
+ endLoop = true;
+ break;
+ }
+
+ frameSize = probe$3.aac.parseId3TagSize(bytes, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > bytes.length) {
+ endLoop = true;
+ break;
+ }
+ if (timestamp === null) {
+ packet = bytes.subarray(byteIndex, byteIndex + frameSize);
+ timestamp = probe$3.aac.parseAacTimestamp(packet);
+ }
+ byteIndex += frameSize;
+ break;
+ case 'audio':
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (bytes.length - byteIndex < 7) {
+ endLoop = true;
+ break;
+ }
+
+ frameSize = probe$3.aac.parseAdtsSize(bytes, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > bytes.length) {
+ endLoop = true;
+ break;
+ }
+ if (sampleRate === null) {
+ packet = bytes.subarray(byteIndex, byteIndex + frameSize);
+ sampleRate = probe$3.aac.parseSampleRate(packet);
+ }
+ audioCount++;
+ byteIndex += frameSize;
+ break;
+ default:
+ byteIndex++;
+ break;
+ }
+ if (endLoop) {
+ return null;
+ }
+ }
+ if (sampleRate === null || timestamp === null) {
+ return null;
+ }
+
+ var audioTimescale = PES_TIMESCALE / sampleRate;
+
+ var result = {
+ audio: [{
+ type: 'audio',
+ dts: timestamp,
+ pts: timestamp
+ }, {
+ type: 'audio',
+ dts: timestamp + audioCount * 1024 * audioTimescale,
+ pts: timestamp + audioCount * 1024 * audioTimescale
+ }]
+ };
+
+ return result;
+ };
+
+ /**
+ * inspects the transport stream segment data for start and end time information
+ * of the audio and video tracks (when present) as well as the first key frame's
+ * start time.
+ */
+ var inspectTs_ = function inspectTs_(bytes) {
+ var pmt = {
+ pid: null,
+ table: null
+ };
+
+ var result = {};
+
+ parsePsi_(bytes, pmt);
+
+ for (var pid in pmt.table) {
+ if (pmt.table.hasOwnProperty(pid)) {
+ var type = pmt.table[pid];
+ switch (type) {
+ case streamTypes.H264_STREAM_TYPE:
+ result.video = [];
+ parseVideoPes_(bytes, pmt, result);
+ if (result.video.length === 0) {
+ delete result.video;
+ }
+ break;
+ case streamTypes.ADTS_STREAM_TYPE:
+ result.audio = [];
+ parseAudioPes_(bytes, pmt, result);
+ if (result.audio.length === 0) {
+ delete result.audio;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ return result;
+ };
+
+ /**
+ * Inspects segment byte data and returns an object with start and end timing information
+ *
+ * @param {Uint8Array} bytes The segment byte data
+ * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame
+ * timestamps for rollover. This value must be in 90khz clock.
+ * @return {Object} Object containing start and end frame timing info of segment.
+ */
+ var inspect = function inspect(bytes, baseTimestamp) {
+ var isAacData = isLikelyAacData$1(bytes);
+
+ var result;
+
+ if (isAacData) {
+ result = inspectAac_(bytes);
+ } else {
+ result = inspectTs_(bytes);
+ }
+
+ if (!result || !result.audio && !result.video) {
+ return null;
+ }
+
+ adjustTimestamp_(result, baseTimestamp);
+
+ return result;
+ };
+
+ var tsInspector = {
+ inspect: inspect
+ };
+
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck$2 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits$2 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$2 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === "undefined" ? "undefined" : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0;
+
+ // Compute double and third tables
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x;
+
+ // Compute MixColumns
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ }
+
+ // Compactify. Considerable speedup on Firefox.
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+ return tables;
+ };
+ var aesTables = null;
+
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck$2(this, AES);
+
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+ if (!aesTables) {
+ aesTables = precompute();
+ }
+ // then make a copy of that object for use
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey];
+
+ // schedule encryption keys
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1];
+
+ // apply sbox
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
+
+ // shift rows and add rcon
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ }
+
+ // schedule decryption keys
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+ AES.prototype.decrypt = function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1];
+ // state variables a,b,c,d are loaded with pre-whitened data
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0;
+
+ // key.length === 2 ?
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1];
+
+ // load up the tables
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4];
+
+ // Inner rounds. Cribbed from OpenSSL.
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;b = b2;c = c2;
+ }
+
+ // Last round.
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;a = b;b = c;c = d;d = a2;
+ }
+ };
+
+ return AES;
+ }();
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream$2 = function () {
+ function Stream() {
+ classCallCheck$2(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ }
+
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file async-stream.js
+ */
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+ var AsyncStream = function (_Stream) {
+ inherits$2(AsyncStream, _Stream);
+
+ function AsyncStream() {
+ classCallCheck$2(this, AsyncStream);
+
+ var _this = possibleConstructorReturn$2(this, _Stream.call(this, Stream$2));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+ AsyncStream.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+ AsyncStream.prototype.push = function push(job) {
+ this.jobs.push(job);
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream;
+ }(Stream$2);
+
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+ var decrypt = function decrypt(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+
+ var decipher = new AES(Array.prototype.slice.call(key));
+
+ // byte and word-level access for the decrypted output
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer);
+
+ // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0;
+
+ // iteration variable
+ var wordIx = void 0;
+
+ // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3];
+
+ // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]);
+
+ // decrypt the block
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx);
+
+ // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3);
+
+ // setup the IV for the next round
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+ var Decrypter = function () {
+ function Decrypter(encrypted, key, initVector, done) {
+ classCallCheck$2(this, Decrypter);
+
+ var step = Decrypter.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+
+ this.asyncStream_ = new AsyncStream();
+
+ // split up the encryption job and do the individual chunks asynchronously
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ }
+ // invoke the done() callback when everything is finished
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+ Decrypter.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt(encrypted, key, initVector);
+
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass$1(Decrypter, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter;
+ }();
+
+ /**
+ * @videojs/http-streaming
+ * @version 1.2.6
+ * @copyright 2018 Brightcove, Inc
+ * @license Apache-2.0
+ */
+
+ /**
+ * @file resolve-url.js
+ */
+
+ var resolveUrl$1 = function resolveUrl(baseURL, relativeURL) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeURL)) {
+ return relativeURL;
+ }
+
+ // if the base URL is relative then combine with the current location
+ if (!/\/\//i.test(baseURL)) {
+ baseURL = urlToolkit.buildAbsoluteURL(window_1.location.href, baseURL);
+ }
+
+ return urlToolkit.buildAbsoluteURL(baseURL, relativeURL);
+ };
+
+ var classCallCheck$3 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$2 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var get$2 = function get$$1(object, property, receiver) {
+ if (object === null) object = Function.prototype;
+ var desc = Object.getOwnPropertyDescriptor(object, property);
+
+ if (desc === undefined) {
+ var parent = Object.getPrototypeOf(object);
+
+ if (parent === null) {
+ return undefined;
+ } else {
+ return get$$1(parent, property, receiver);
+ }
+ } else if ("value" in desc) {
+ return desc.value;
+ } else {
+ var getter = desc.get;
+
+ if (getter === undefined) {
+ return undefined;
+ }
+
+ return getter.call(receiver);
+ }
+ };
+
+ var inherits$3 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$3 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ var slicedToArray$1 = function () {
+ function sliceIterator(arr, i) {
+ var _arr = [];
+ var _n = true;
+ var _d = false;
+ var _e = undefined;
+
+ try {
+ for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+ _arr.push(_s.value);
+
+ if (i && _arr.length === i) break;
+ }
+ } catch (err) {
+ _d = true;
+ _e = err;
+ } finally {
+ try {
+ if (!_n && _i["return"]) _i["return"]();
+ } finally {
+ if (_d) throw _e;
+ }
+ }
+
+ return _arr;
+ }
+
+ return function (arr, i) {
+ if (Array.isArray(arr)) {
+ return arr;
+ } else if (Symbol.iterator in Object(arr)) {
+ return sliceIterator(arr, i);
+ } else {
+ throw new TypeError("Invalid attempt to destructure non-iterable instance");
+ }
+ };
+ }();
+
+ /**
+ * @file playlist-loader.js
+ *
+ * A state machine that manages the loading, caching, and updating of
+ * M3U8 playlists.
+ *
+ */
+
+ var mergeOptions$1 = videojs$1.mergeOptions,
+ EventTarget$1 = videojs$1.EventTarget,
+ log$2 = videojs$1.log;
+
+ /**
+ * Loops through all supported media groups in master and calls the provided
+ * callback for each group
+ *
+ * @param {Object} master
+ * The parsed master manifest object
+ * @param {Function} callback
+ * Callback to call for each media group
+ */
+
+ var forEachMediaGroup = function forEachMediaGroup(master, callback) {
+ ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {
+ for (var groupKey in master.mediaGroups[mediaType]) {
+ for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
+ var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+
+ callback(mediaProperties, mediaType, groupKey, labelKey);
+ }
+ }
+ });
+ };
+
+ /**
+ * Returns a new array of segments that is the result of merging
+ * properties from an older list of segments onto an updated
+ * list. No properties on the updated playlist will be overridden.
+ *
+ * @param {Array} original the outdated list of segments
+ * @param {Array} update the updated list of segments
+ * @param {Number=} offset the index of the first update
+ * segment in the original segment list. For non-live playlists,
+ * this should always be zero and does not need to be
+ * specified. For live playlists, it should be the difference
+ * between the media sequence numbers in the original and updated
+ * playlists.
+ * @return a list of merged segment objects
+ */
+ var updateSegments = function updateSegments(original, update, offset) {
+ var result = update.slice();
+
+ offset = offset || 0;
+ var length = Math.min(original.length, update.length + offset);
+
+ for (var i = offset; i < length; i++) {
+ result[i - offset] = mergeOptions$1(original[i], result[i - offset]);
+ }
+ return result;
+ };
+
+ var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {
+ if (!segment.resolvedUri) {
+ segment.resolvedUri = resolveUrl$1(baseUri, segment.uri);
+ }
+ if (segment.key && !segment.key.resolvedUri) {
+ segment.key.resolvedUri = resolveUrl$1(baseUri, segment.key.uri);
+ }
+ if (segment.map && !segment.map.resolvedUri) {
+ segment.map.resolvedUri = resolveUrl$1(baseUri, segment.map.uri);
+ }
+ };
+
+ /**
+ * Returns a new master playlist that is the result of merging an
+ * updated media playlist into the original version. If the
+ * updated media playlist does not match any of the playlist
+ * entries in the original master playlist, null is returned.
+ *
+ * @param {Object} master a parsed master M3U8 object
+ * @param {Object} media a parsed media M3U8 object
+ * @return {Object} a new object that represents the original
+ * master playlist with the updated media playlist merged in, or
+ * null if the merge produced no change.
+ */
+ var updateMaster = function updateMaster(master, media) {
+ var result = mergeOptions$1(master, {});
+ var playlist = result.playlists[media.uri];
+
+ if (!playlist) {
+ return null;
+ }
+
+ // consider the playlist unchanged if the number of segments is equal and the media
+ // sequence number is unchanged
+ if (playlist.segments && media.segments && playlist.segments.length === media.segments.length && playlist.mediaSequence === media.mediaSequence) {
+ return null;
+ }
+
+ var mergedPlaylist = mergeOptions$1(playlist, media);
+
+ // if the update could overlap existing segment information, merge the two segment lists
+ if (playlist.segments) {
+ mergedPlaylist.segments = updateSegments(playlist.segments, media.segments, media.mediaSequence - playlist.mediaSequence);
+ }
+
+ // resolve any segment URIs to prevent us from having to do it later
+ mergedPlaylist.segments.forEach(function (segment) {
+ resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
+ });
+
+ // TODO Right now in the playlists array there are two references to each playlist, one
+ // that is referenced by index, and one by URI. The index reference may no longer be
+ // necessary.
+ for (var i = 0; i < result.playlists.length; i++) {
+ if (result.playlists[i].uri === media.uri) {
+ result.playlists[i] = mergedPlaylist;
+ }
+ }
+ result.playlists[media.uri] = mergedPlaylist;
+
+ return result;
+ };
+
+ var setupMediaPlaylists = function setupMediaPlaylists(master) {
+ // setup by-URI lookups and resolve media playlist URIs
+ var i = master.playlists.length;
+
+ while (i--) {
+ var playlist = master.playlists[i];
+
+ master.playlists[playlist.uri] = playlist;
+ playlist.resolvedUri = resolveUrl$1(master.uri, playlist.uri);
+ playlist.id = i;
+
+ if (!playlist.attributes) {
+ // Although the spec states an #EXT-X-STREAM-INF tag MUST have a
+ // BANDWIDTH attribute, we can play the stream without it. This means a poorly
+ // formatted master playlist may not have an attribute list. An attributes
+ // property is added here to prevent undefined references when we encounter
+ // this scenario.
+ playlist.attributes = {};
+
+ log$2.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
+ }
+ }
+ };
+
+ var resolveMediaGroupUris = function resolveMediaGroupUris(master) {
+ forEachMediaGroup(master, function (properties) {
+ if (properties.uri) {
+ properties.resolvedUri = resolveUrl$1(master.uri, properties.uri);
+ }
+ });
+ };
+
+ /**
+ * Calculates the time to wait before refreshing a live playlist
+ *
+ * @param {Object} media
+ * The current media
+ * @param {Boolean} update
+ * True if there were any updates from the last refresh, false otherwise
+ * @return {Number}
+ * The time in ms to wait before refreshing the live playlist
+ */
+ var refreshDelay = function refreshDelay(media, update) {
+ var lastSegment = media.segments[media.segments.length - 1];
+ var delay = void 0;
+
+ if (update && lastSegment && lastSegment.duration) {
+ delay = lastSegment.duration * 1000;
+ } else {
+ // if the playlist is unchanged since the last reload or last segment duration
+ // cannot be determined, try again after half the target duration
+ delay = (media.targetDuration || 10) * 500;
+ }
+ return delay;
+ };
+
+ /**
+ * Load a playlist from a remote location
+ *
+ * @class PlaylistLoader
+ * @extends Stream
+ * @param {String} srcUrl the url to start with
+ * @param {Boolean} withCredentials the withCredentials xhr option
+ * @constructor
+ */
+
+ var PlaylistLoader = function (_EventTarget) {
+ inherits$3(PlaylistLoader, _EventTarget);
+
+ function PlaylistLoader(srcUrl, hls, withCredentials) {
+ classCallCheck$3(this, PlaylistLoader);
+
+ var _this = possibleConstructorReturn$3(this, (PlaylistLoader.__proto__ || Object.getPrototypeOf(PlaylistLoader)).call(this));
+
+ _this.srcUrl = srcUrl;
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!_this.srcUrl) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ // initialize the loader state
+ _this.state = 'HAVE_NOTHING';
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ if (_this.state !== 'HAVE_METADATA') {
+ // only refresh the media playlist if no other activity is going on
+ return;
+ }
+
+ _this.state = 'HAVE_CURRENT_METADATA';
+
+ _this.request = _this.hls_.xhr({
+ uri: resolveUrl$1(_this.master.uri, _this.media().uri),
+ withCredentials: _this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this.request) {
+ return;
+ }
+
+ if (error) {
+ return _this.playlistRequestError(_this.request, _this.media().uri, 'HAVE_METADATA');
+ }
+
+ _this.haveMetadata(_this.request, _this.media().uri);
+ });
+ });
+ return _this;
+ }
+
+ createClass$2(PlaylistLoader, [{
+ key: 'playlistRequestError',
+ value: function playlistRequestError(xhr, url, startingState) {
+ // any in-flight request is now finished
+ this.request = null;
+
+ if (startingState) {
+ this.state = startingState;
+ }
+
+ this.error = {
+ playlist: this.master.playlists[url],
+ status: xhr.status,
+ message: 'HLS playlist request error at URL: ' + url,
+ responseText: xhr.responseText,
+ code: xhr.status >= 500 ? 4 : 2
+ };
+
+ this.trigger('error');
+ }
+
+ // update the playlist loader's state in response to a new or
+ // updated playlist.
+
+ }, {
+ key: 'haveMetadata',
+ value: function haveMetadata(xhr, url) {
+ var _this2 = this;
+
+ // any in-flight request is now finished
+ this.request = null;
+ this.state = 'HAVE_METADATA';
+
+ var parser = new Parser();
+
+ parser.push(xhr.responseText);
+ parser.end();
+ parser.manifest.uri = url;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ parser.manifest.attributes = parser.manifest.attributes || {};
+
+ // merge this playlist into the master
+ var update = updateMaster(this.master, parser.manifest);
+
+ this.targetDuration = parser.manifest.targetDuration;
+
+ if (update) {
+ this.master = update;
+ this.media_ = this.master.playlists[parser.manifest.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ // refresh live playlists after a target duration passes
+ if (!this.media().endList) {
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ this.mediaUpdateTimeout = window_1.setTimeout(function () {
+ _this2.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!update));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Abort any outstanding work and clean up.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+
+ /**
+ * When called without any arguments, returns the currently
+ * active media playlist. When called with a single argument,
+ * triggers the playlist loader to asynchronously switch to the
+ * specified media playlist. Calling this method while the
+ * loader is in the HAVE_NOTHING causes an error to be emitted
+ * but otherwise has no effect.
+ *
+ * @param {Object=} playlist the parsed media playlist
+ * object to switch to
+ * @return {Playlist} the current loaded media
+ */
+
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ var _this3 = this;
+
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been
+ // specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ // switch to fully loaded playlists immediately
+ if (this.master.playlists[playlist.uri].endList) {
+ // abort outstanding playlist requests
+ if (this.request) {
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+ this.state = 'HAVE_METADATA';
+ this.media_ = playlist;
+
+ // trigger media change if the active media has been updated
+ if (mediaChange) {
+ this.trigger('mediachanging');
+ this.trigger('mediachange');
+ }
+ return;
+ }
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ this.state = 'SWITCHING_MEDIA';
+
+ // there is already an outstanding playlist request
+ if (this.request) {
+ if (resolveUrl$1(this.master.uri, playlist.uri) === this.request.url) {
+ // requesting to switch to the same playlist multiple times
+ // has no effect after the first
+ return;
+ }
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+
+ // request the new playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl$1(this.master.uri, playlist.uri),
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ return _this3.playlistRequestError(_this3.request, playlist.uri, startingState);
+ }
+
+ _this3.haveMetadata(req, playlist.uri);
+
+ // fire loadedmetadata the first time a media playlist is loaded
+ if (startingState === 'HAVE_MASTER') {
+ _this3.trigger('loadedmetadata');
+ } else {
+ _this3.trigger('mediachange');
+ }
+ });
+ }
+
+ /**
+ * pause loading of the playlist
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ // Need to restore state now that no activity is happening
+ if (this.state === 'SWITCHING_MEDIA') {
+ // if the loader was in the process of switching media, it should either return to
+ // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media
+ // playlist yet. This is determined by the existence of loader.media_
+ if (this.media_) {
+ this.state = 'HAVE_METADATA';
+ } else {
+ this.state = 'HAVE_MASTER';
+ }
+ } else if (this.state === 'HAVE_CURRENT_METADATA') {
+ this.state = 'HAVE_METADATA';
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'load',
+ value: function load(isFinalRendition) {
+ var _this4 = this;
+
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+
+ var media = this.media();
+
+ if (isFinalRendition) {
+ var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+
+ this.mediaUpdateTimeout = window_1.setTimeout(function () {
+ return _this4.load();
+ }, delay);
+ return;
+ }
+
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ if (media && !media.endList) {
+ this.trigger('mediaupdatetimeout');
+ } else {
+ this.trigger('loadedplaylist');
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this5 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'HLS playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ var parser = new Parser();
+
+ parser.push(req.responseText);
+ parser.end();
+
+ _this5.state = 'HAVE_MASTER';
+
+ parser.manifest.uri = _this5.srcUrl;
+
+ // loaded a master playlist
+ if (parser.manifest.playlists) {
+ _this5.master = parser.manifest;
+
+ setupMediaPlaylists(_this5.master);
+ resolveMediaGroupUris(_this5.master);
+
+ _this5.trigger('loadedplaylist');
+ if (!_this5.request) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ _this5.media(parser.manifest.playlists[0]);
+ }
+ return;
+ }
+
+ // loaded a media playlist
+ // infer a master playlist if none was previously requested
+ _this5.master = {
+ mediaGroups: {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ },
+ uri: window_1.location.href,
+ playlists: [{
+ uri: _this5.srcUrl,
+ id: 0
+ }]
+ };
+ _this5.master.playlists[_this5.srcUrl] = _this5.master.playlists[0];
+ _this5.master.playlists[0].resolvedUri = _this5.srcUrl;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ _this5.master.playlists[0].attributes = _this5.master.playlists[0].attributes || {};
+ _this5.haveMetadata(req, _this5.srcUrl);
+ return _this5.trigger('loadedmetadata');
+ });
+ }
+ }]);
+ return PlaylistLoader;
+ }(EventTarget$1);
+
+ /**
+ * @file playlist.js
+ *
+ * Playlist related utilities.
+ */
+
+ var createTimeRange = videojs$1.createTimeRange;
+
+ /**
+ * walk backward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+
+ var backwardDuration = function backwardDuration(playlist, endSequence) {
+ var result = 0;
+ var i = endSequence - playlist.mediaSequence;
+ // if a start time is available for segment immediately following
+ // the interval, use it
+ var segment = playlist.segments[i];
+
+ // Walk backward until we find the latest segment with timeline
+ // information that is earlier than endSequence
+ if (segment) {
+ if (typeof segment.start !== 'undefined') {
+ return { result: segment.start, precise: true };
+ }
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - segment.duration,
+ precise: true
+ };
+ }
+ }
+ while (i--) {
+ segment = playlist.segments[i];
+ if (typeof segment.end !== 'undefined') {
+ return { result: result + segment.end, precise: true };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.start !== 'undefined') {
+ return { result: result + segment.start, precise: true };
+ }
+ }
+ return { result: result, precise: false };
+ };
+
+ /**
+ * walk forward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+ var forwardDuration = function forwardDuration(playlist, endSequence) {
+ var result = 0;
+ var segment = void 0;
+ var i = endSequence - playlist.mediaSequence;
+ // Walk forward until we find the earliest segment with timeline
+ // information
+
+ for (; i < playlist.segments.length; i++) {
+ segment = playlist.segments[i];
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: segment.start - result,
+ precise: true
+ };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - result,
+ precise: true
+ };
+ }
+ }
+ // indicate we didn't find a useful duration estimate
+ return { result: -1, precise: false };
+ };
+
+ /**
+ * Calculate the media duration from the segments associated with a
+ * playlist. The duration of a subinterval of the available segments
+ * may be calculated by specifying an end index.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper boundary
+ * for the playlist. Defaults to playlist length.
+ * @param {Number} expired the amount of time that has dropped
+ * off the front of the playlist in a live scenario
+ * @return {Number} the duration between the first available segment
+ * and end index.
+ */
+ var intervalDuration = function intervalDuration(playlist, endSequence, expired) {
+ var backward = void 0;
+ var forward = void 0;
+
+ if (typeof endSequence === 'undefined') {
+ endSequence = playlist.mediaSequence + playlist.segments.length;
+ }
+
+ if (endSequence < playlist.mediaSequence) {
+ return 0;
+ }
+
+ // do a backward walk to estimate the duration
+ backward = backwardDuration(playlist, endSequence);
+ if (backward.precise) {
+ // if we were able to base our duration estimate on timing
+ // information provided directly from the Media Source, return
+ // it
+ return backward.result;
+ }
+
+ // walk forward to see if a precise duration estimate can be made
+ // that way
+ forward = forwardDuration(playlist, endSequence);
+ if (forward.precise) {
+ // we found a segment that has been buffered and so it's
+ // position is known precisely
+ return forward.result;
+ }
+
+ // return the less-precise, playlist-based duration estimate
+ return backward.result + expired;
+ };
+
+ /**
+ * Calculates the duration of a playlist. If a start and end index
+ * are specified, the duration will be for the subset of the media
+ * timeline between those two indices. The total duration for live
+ * playlists is always Infinity.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper
+ * boundary for the playlist. Defaults to the playlist media
+ * sequence number plus its length.
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {Number} the duration between the start index and end
+ * index.
+ */
+ var duration = function duration(playlist, endSequence, expired) {
+ if (!playlist) {
+ return 0;
+ }
+
+ if (typeof expired !== 'number') {
+ expired = 0;
+ }
+
+ // if a slice of the total duration is not requested, use
+ // playlist-level duration indicators when they're present
+ if (typeof endSequence === 'undefined') {
+ // if present, use the duration specified in the playlist
+ if (playlist.totalDuration) {
+ return playlist.totalDuration;
+ }
+
+ // duration should be Infinity for live playlists
+ if (!playlist.endList) {
+ return window_1.Infinity;
+ }
+ }
+
+ // calculate the total duration based on the segment durations
+ return intervalDuration(playlist, endSequence, expired);
+ };
+
+ /**
+ * Calculate the time between two indexes in the current playlist
+ * neight the start- nor the end-index need to be within the current
+ * playlist in which case, the targetDuration of the playlist is used
+ * to approximate the durations of the segments
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number} startIndex
+ * @param {Number} endIndex
+ * @return {Number} the number of seconds between startIndex and endIndex
+ */
+ var sumDurations = function sumDurations(playlist, startIndex, endIndex) {
+ var durations = 0;
+
+ if (startIndex > endIndex) {
+ var _ref = [endIndex, startIndex];
+ startIndex = _ref[0];
+ endIndex = _ref[1];
+ }
+
+ if (startIndex < 0) {
+ for (var i = startIndex; i < Math.min(0, endIndex); i++) {
+ durations += playlist.targetDuration;
+ }
+ startIndex = 0;
+ }
+
+ for (var _i = startIndex; _i < endIndex; _i++) {
+ durations += playlist.segments[_i].duration;
+ }
+
+ return durations;
+ };
+
+ /**
+ * Determines the media index of the segment corresponding to the safe edge of the live
+ * window which is the duration of the last segment plus 2 target durations from the end
+ * of the playlist.
+ *
+ * @param {Object} playlist
+ * a media playlist object
+ * @return {Number}
+ * The media index of the segment at the safe live point. 0 if there is no "safe"
+ * point.
+ * @function safeLiveIndex
+ */
+ var safeLiveIndex = function safeLiveIndex(playlist) {
+ if (!playlist.segments.length) {
+ return 0;
+ }
+
+ var i = playlist.segments.length - 1;
+ var distanceFromEnd = playlist.segments[i].duration || playlist.targetDuration;
+ var safeDistance = distanceFromEnd + playlist.targetDuration * 2;
+
+ while (i--) {
+ distanceFromEnd += playlist.segments[i].duration;
+
+ if (distanceFromEnd >= safeDistance) {
+ break;
+ }
+ }
+
+ return Math.max(0, i);
+ };
+
+ /**
+ * Calculates the playlist end time
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @param {Boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
+ * playlist end calculation should consider the safe live end
+ * (truncate the playlist end by three segments). This is normally
+ * used for calculating the end of the playlist's seekable range.
+ * @returns {Number} the end time of playlist
+ * @function playlistEnd
+ */
+ var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+ if (playlist.endList) {
+ return duration(playlist);
+ }
+
+ if (expired === null) {
+ return null;
+ }
+
+ expired = expired || 0;
+
+ var endSequence = useSafeLiveEnd ? safeLiveIndex(playlist) : playlist.segments.length;
+
+ return intervalDuration(playlist, playlist.mediaSequence + endSequence, expired);
+ };
+
+ /**
+ * Calculates the interval of time that is currently seekable in a
+ * playlist. The returned time ranges are relative to the earliest
+ * moment in the specified playlist that is still available. A full
+ * seekable implementation for live streams would need to offset
+ * these values by the duration of content that has expired from the
+ * stream.
+ *
+ * @param {Object} playlist a media playlist object
+ * dropped off the front of the playlist in a live scenario
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {TimeRanges} the periods of time that are valid targets
+ * for seeking
+ */
+ var seekable = function seekable(playlist, expired) {
+ var useSafeLiveEnd = true;
+ var seekableStart = expired || 0;
+ var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd);
+
+ if (seekableEnd === null) {
+ return createTimeRange();
+ }
+ return createTimeRange(seekableStart, seekableEnd);
+ };
+
+ var isWholeNumber = function isWholeNumber(num) {
+ return num - Math.floor(num) === 0;
+ };
+
+ var roundSignificantDigit = function roundSignificantDigit(increment, num) {
+ // If we have a whole number, just add 1 to it
+ if (isWholeNumber(num)) {
+ return num + increment * 0.1;
+ }
+
+ var numDecimalDigits = num.toString().split('.')[1].length;
+
+ for (var i = 1; i <= numDecimalDigits; i++) {
+ var scale = Math.pow(10, i);
+ var temp = num * scale;
+
+ if (isWholeNumber(temp) || i === numDecimalDigits) {
+ return (temp + increment) / scale;
+ }
+ }
+ };
+
+ var ceilLeastSignificantDigit = roundSignificantDigit.bind(null, 1);
+ var floorLeastSignificantDigit = roundSignificantDigit.bind(null, -1);
+
+ /**
+ * Determine the index and estimated starting time of the segment that
+ * contains a specified playback position in a media playlist.
+ *
+ * @param {Object} playlist the media playlist to query
+ * @param {Number} currentTime The number of seconds since the earliest
+ * possible position to determine the containing segment for
+ * @param {Number} startIndex
+ * @param {Number} startTime
+ * @return {Object}
+ */
+ var getMediaInfoForTime = function getMediaInfoForTime(playlist, currentTime, startIndex, startTime) {
+ var i = void 0;
+ var segment = void 0;
+ var numSegments = playlist.segments.length;
+
+ var time = currentTime - startTime;
+
+ if (time < 0) {
+ // Walk backward from startIndex in the playlist, adding durations
+ // until we find a segment that contains `time` and return it
+ if (startIndex > 0) {
+ for (i = startIndex - 1; i >= 0; i--) {
+ segment = playlist.segments[i];
+ time += floorLeastSignificantDigit(segment.duration);
+ if (time > 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime - sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+ }
+ // We were unable to find a good segment within the playlist
+ // so select the first segment
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+
+ // When startIndex is negative, we first walk forward to first segment
+ // adding target durations. If we "run out of time" before getting to
+ // the first segment, return the first segment
+ if (startIndex < 0) {
+ for (i = startIndex; i < 0; i++) {
+ time -= playlist.targetDuration;
+ if (time < 0) {
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+ }
+ startIndex = 0;
+ }
+
+ // Walk forward from startIndex in the playlist, subtracting durations
+ // until we find a segment that contains `time` and return it
+ for (i = startIndex; i < numSegments; i++) {
+ segment = playlist.segments[i];
+ time -= ceilLeastSignificantDigit(segment.duration);
+ if (time < 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime + sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+
+ // We are out of possible candidates so load the last one...
+ return {
+ mediaIndex: numSegments - 1,
+ startTime: currentTime
+ };
+ };
+
+ /**
+ * Check whether the playlist is blacklisted or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is blacklisted or not
+ * @function isBlacklisted
+ */
+ var isBlacklisted = function isBlacklisted(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil > Date.now();
+ };
+
+ /**
+ * Check whether the playlist is compatible with current playback configuration or has
+ * been blacklisted permanently for being incompatible.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is incompatible or not
+ * @function isIncompatible
+ */
+ var isIncompatible = function isIncompatible(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil === Infinity;
+ };
+
+ /**
+ * Check whether the playlist is enabled or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is enabled or not
+ * @function isEnabled
+ */
+ var isEnabled = function isEnabled(playlist) {
+ var blacklisted = isBlacklisted(playlist);
+
+ return !playlist.disabled && !blacklisted;
+ };
+
+ /**
+ * Check whether the playlist has been manually disabled through the representations api.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is disabled manually or not
+ * @function isDisabled
+ */
+ var isDisabled = function isDisabled(playlist) {
+ return playlist.disabled;
+ };
+
+ /**
+ * Returns whether the current playlist is an AES encrypted HLS stream
+ *
+ * @return {Boolean} true if it's an AES encrypted HLS stream
+ */
+ var isAes = function isAes(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].key) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Returns whether the current playlist contains fMP4
+ *
+ * @return {Boolean} true if the playlist contains fMP4
+ */
+ var isFmp4 = function isFmp4(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].map) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Checks if the playlist has a value for the specified attribute
+ *
+ * @param {String} attr
+ * Attribute to check for
+ * @param {Object} playlist
+ * The media playlist object
+ * @return {Boolean}
+ * Whether the playlist contains a value for the attribute or not
+ * @function hasAttribute
+ */
+ var hasAttribute = function hasAttribute(attr, playlist) {
+ return playlist.attributes && playlist.attributes[attr];
+ };
+
+ /**
+ * Estimates the time required to complete a segment download from the specified playlist
+ *
+ * @param {Number} segmentDuration
+ * Duration of requested segment
+ * @param {Number} bandwidth
+ * Current measured bandwidth of the player
+ * @param {Object} playlist
+ * The media playlist object
+ * @param {Number=} bytesReceived
+ * Number of bytes already received for the request. Defaults to 0
+ * @return {Number|NaN}
+ * The estimated time to request the segment. NaN if bandwidth information for
+ * the given playlist is unavailable
+ * @function estimateSegmentRequestTime
+ */
+ var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist) {
+ var bytesReceived = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
+
+ if (!hasAttribute('BANDWIDTH', playlist)) {
+ return NaN;
+ }
+
+ var size = segmentDuration * playlist.attributes.BANDWIDTH;
+
+ return (size - bytesReceived * 8) / bandwidth;
+ };
+
+ /*
+ * Returns whether the current playlist is the lowest rendition
+ *
+ * @return {Boolean} true if on lowest rendition
+ */
+ var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {
+ if (master.playlists.length === 1) {
+ return true;
+ }
+
+ var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
+
+ return master.playlists.filter(function (playlist) {
+ if (!isEnabled(playlist)) {
+ return false;
+ }
+
+ return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
+ }).length === 0;
+ };
+
+ // exports
+ var Playlist = {
+ duration: duration,
+ seekable: seekable,
+ safeLiveIndex: safeLiveIndex,
+ getMediaInfoForTime: getMediaInfoForTime,
+ isEnabled: isEnabled,
+ isDisabled: isDisabled,
+ isBlacklisted: isBlacklisted,
+ isIncompatible: isIncompatible,
+ playlistEnd: playlistEnd,
+ isAes: isAes,
+ isFmp4: isFmp4,
+ hasAttribute: hasAttribute,
+ estimateSegmentRequestTime: estimateSegmentRequestTime,
+ isLowestEnabledRendition: isLowestEnabledRendition
+ };
+
+ /**
+ * @file xhr.js
+ */
+
+ var videojsXHR = videojs$1.xhr,
+ mergeOptions$1$1 = videojs$1.mergeOptions;
+
+ var xhrFactory = function xhrFactory() {
+ var xhr = function XhrFunction(options, callback) {
+ // Add a default timeout for all hls requests
+ options = mergeOptions$1$1({
+ timeout: 45e3
+ }, options);
+
+ // Allow an optional user-specified function to modify the option
+ // object before we construct the xhr request
+ var beforeRequest = XhrFunction.beforeRequest || videojs$1.Hls.xhr.beforeRequest;
+
+ if (beforeRequest && typeof beforeRequest === 'function') {
+ var newOptions = beforeRequest(options);
+
+ if (newOptions) {
+ options = newOptions;
+ }
+ }
+
+ var request = videojsXHR(options, function (error, response) {
+ var reqResponse = request.response;
+
+ if (!error && reqResponse) {
+ request.responseTime = Date.now();
+ request.roundTripTime = request.responseTime - request.requestTime;
+ request.bytesReceived = reqResponse.byteLength || reqResponse.length;
+ if (!request.bandwidth) {
+ request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
+ }
+ }
+
+ if (response.headers) {
+ request.responseHeaders = response.headers;
+ }
+
+ // videojs.xhr now uses a specific code on the error
+ // object to signal that a request has timed out instead
+ // of setting a boolean on the request object
+ if (error && error.code === 'ETIMEDOUT') {
+ request.timedout = true;
+ }
+
+ // videojs.xhr no longer considers status codes outside of 200 and 0
+ // (for file uris) to be errors, but the old XHR did, so emulate that
+ // behavior. Status 206 may be used in response to byterange requests.
+ if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
+ error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
+ }
+
+ callback(error, request);
+ });
+ var originalAbort = request.abort;
+
+ request.abort = function () {
+ request.aborted = true;
+ return originalAbort.apply(request, arguments);
+ };
+ request.uri = options.uri;
+ request.requestTime = Date.now();
+ return request;
+ };
+
+ return xhr;
+ };
+
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * convert a TimeRange to text
+ *
+ * @param {TimeRange} range the timerange to use for conversion
+ * @param {Number} i the iterator on the range to convert
+ */
+ var textRange = function textRange(range, i) {
+ return range.start(i) + '-' + range.end(i);
+ };
+
+ /**
+ * format a number as hex string
+ *
+ * @param {Number} e The number
+ * @param {Number} i the iterator
+ */
+ var formatHexString = function formatHexString(e, i) {
+ var value = e.toString(16);
+
+ return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
+ };
+ var formatAsciiString = function formatAsciiString(e) {
+ if (e >= 0x20 && e < 0x7e) {
+ return String.fromCharCode(e);
+ }
+ return '.';
+ };
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+ };
+
+ /**
+ * Returns a unique string identifier for a media initialization
+ * segment.
+ */
+ var initSegmentId = function initSegmentId(initSegment) {
+ var byterange = initSegment.byterange || {
+ length: Infinity,
+ offset: 0
+ };
+
+ return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
+ };
+
+ /**
+ * utils to help dump binary data to the console
+ */
+ var hexDump = function hexDump(data) {
+ var bytes = Array.prototype.slice.call(data);
+ var step = 16;
+ var result = '';
+ var hex = void 0;
+ var ascii = void 0;
+
+ for (var j = 0; j < bytes.length / step; j++) {
+ hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
+ ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
+ result += hex + ' ' + ascii + '\n';
+ }
+
+ return result;
+ };
+
+ var tagDump = function tagDump(_ref) {
+ var bytes = _ref.bytes;
+ return hexDump(bytes);
+ };
+
+ var textRanges = function textRanges(ranges) {
+ var result = '';
+ var i = void 0;
+
+ for (i = 0; i < ranges.length; i++) {
+ result += textRange(ranges, i) + ' ';
+ }
+ return result;
+ };
+
+ var utils = /*#__PURE__*/Object.freeze({
+ createTransferableMessage: createTransferableMessage,
+ initSegmentId: initSegmentId,
+ hexDump: hexDump,
+ tagDump: tagDump,
+ textRanges: textRanges
+ });
+
+ /**
+ * ranges
+ *
+ * Utilities for working with TimeRanges.
+ *
+ */
+
+ // Fudge factor to account for TimeRanges rounding
+ var TIME_FUDGE_FACTOR = 1 / 30;
+ // Comparisons between time values such as current time and the end of the buffered range
+ // can be misleading because of precision differences or when the current media has poorly
+ // aligned audio and video, which can cause values to be slightly off from what you would
+ // expect. This value is what we consider to be safe to use in such comparisons to account
+ // for these scenarios.
+ var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
+ var filterRanges = function filterRanges(timeRanges, predicate) {
+ var results = [];
+ var i = void 0;
+
+ if (timeRanges && timeRanges.length) {
+ // Search for ranges that match the predicate
+ for (i = 0; i < timeRanges.length; i++) {
+ if (predicate(timeRanges.start(i), timeRanges.end(i))) {
+ results.push([timeRanges.start(i), timeRanges.end(i)]);
+ }
+ }
+ }
+
+ return videojs$1.createTimeRanges(results);
+ };
+
+ /**
+ * Attempts to find the buffered TimeRange that contains the specified
+ * time.
+ * @param {TimeRanges} buffered - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object
+ */
+ var findRange = function findRange(buffered, time) {
+ return filterRanges(buffered, function (start, end) {
+ return start - TIME_FUDGE_FACTOR <= time && end + TIME_FUDGE_FACTOR >= time;
+ });
+ };
+
+ /**
+ * Returns the TimeRanges that begin later than the specified time.
+ * @param {TimeRanges} timeRanges - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object.
+ */
+ var findNextRange = function findNextRange(timeRanges, time) {
+ return filterRanges(timeRanges, function (start) {
+ return start - TIME_FUDGE_FACTOR >= time;
+ });
+ };
+
+ /**
+ * Returns gaps within a list of TimeRanges
+ * @param {TimeRanges} buffered - the TimeRanges object
+ * @return {TimeRanges} a TimeRanges object of gaps
+ */
+ var findGaps = function findGaps(buffered) {
+ if (buffered.length < 2) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var ranges = [];
+
+ for (var i = 1; i < buffered.length; i++) {
+ var start = buffered.end(i - 1);
+ var end = buffered.start(i);
+
+ ranges.push([start, end]);
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+ };
+
+ /**
+ * Gets a human readable string for a TimeRange
+ *
+ * @param {TimeRange} range
+ * @returns {String} a human readable string
+ */
+ var printableRange = function printableRange(range) {
+ var strArr = [];
+
+ if (!range || !range.length) {
+ return '';
+ }
+
+ for (var i = 0; i < range.length; i++) {
+ strArr.push(range.start(i) + ' => ' + range.end(i));
+ }
+
+ return strArr.join(', ');
+ };
+
+ /**
+ * Calculates the amount of time left in seconds until the player hits the end of the
+ * buffer and causes a rebuffer
+ *
+ * @param {TimeRange} buffered
+ * The state of the buffer
+ * @param {Numnber} currentTime
+ * The current time of the player
+ * @param {Number} playbackRate
+ * The current playback rate of the player. Defaults to 1.
+ * @return {Number}
+ * Time until the player has to start rebuffering in seconds.
+ * @function timeUntilRebuffer
+ */
+ var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime) {
+ var playbackRate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
+
+ var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
+
+ return (bufferedEnd - currentTime) / playbackRate;
+ };
+
+ /**
+ * Converts a TimeRanges object into an array representation
+ * @param {TimeRanges} timeRanges
+ * @returns {Array}
+ */
+ var timeRangesToArray = function timeRangesToArray(timeRanges) {
+ var timeRangesList = [];
+
+ for (var i = 0; i < timeRanges.length; i++) {
+ timeRangesList.push({
+ start: timeRanges.start(i),
+ end: timeRanges.end(i)
+ });
+ }
+
+ return timeRangesList;
+ };
+
+ /**
+ * @file create-text-tracks-if-necessary.js
+ */
+
+ /**
+ * Create text tracks on video.js if they exist on a segment.
+ *
+ * @param {Object} sourceBuffer the VSB or FSB
+ * @param {Object} mediaSource the HTML media source
+ * @param {Object} segment the segment that may contain the text track
+ * @private
+ */
+ var createTextTracksIfNecessary = function createTextTracksIfNecessary(sourceBuffer, mediaSource, segment) {
+ var player = mediaSource.player_;
+
+ // create an in-band caption track if one is present in the segment
+ if (segment.captions && segment.captions.length) {
+ if (!sourceBuffer.inbandTextTracks_) {
+ sourceBuffer.inbandTextTracks_ = {};
+ }
+
+ for (var trackId in segment.captionStreams) {
+ if (!sourceBuffer.inbandTextTracks_[trackId]) {
+ player.tech_.trigger({ type: 'usage', name: 'hls-608' });
+ var track = player.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ sourceBuffer.inbandTextTracks_[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ sourceBuffer.inbandTextTracks_[trackId] = player.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ }
+
+ if (segment.metadata && segment.metadata.length && !sourceBuffer.metadataTrack_) {
+ sourceBuffer.metadataTrack_ = player.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'Timed Metadata'
+ }, false).track;
+ sourceBuffer.metadataTrack_.inBandMetadataTrackDispatchType = segment.metadata.dispatchType;
+ }
+ };
+
+ /**
+ * @file remove-cues-from-track.js
+ */
+
+ /**
+ * Remove cues from a track on video.js.
+ *
+ * @param {Double} start start of where we should remove the cue
+ * @param {Double} end end of where the we should remove the cue
+ * @param {Object} track the text track to remove the cues from
+ * @private
+ */
+ var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {
+ var i = void 0;
+ var cue = void 0;
+
+ if (!track) {
+ return;
+ }
+
+ if (!track.cues) {
+ return;
+ }
+
+ i = track.cues.length;
+
+ while (i--) {
+ cue = track.cues[i];
+
+ // Remove any overlapping cue
+ if (cue.startTime <= end && cue.endTime >= start) {
+ track.removeCue(cue);
+ }
+ }
+ };
+
+ /**
+ * @file add-text-track-data.js
+ */
+ /**
+ * Define properties on a cue for backwards compatability,
+ * but warn the user that the way that they are using it
+ * is depricated and will be removed at a later date.
+ *
+ * @param {Cue} cue the cue to add the properties on
+ * @private
+ */
+ var deprecateOldCue = function deprecateOldCue(cue) {
+ Object.defineProperties(cue.frame, {
+ id: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
+ return cue.value.key;
+ }
+ },
+ value: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ },
+ privateData: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ }
+ });
+ };
+
+ var durationOfVideo = function durationOfVideo(duration) {
+ var dur = void 0;
+
+ if (isNaN(duration) || Math.abs(duration) === Infinity) {
+ dur = Number.MAX_VALUE;
+ } else {
+ dur = duration;
+ }
+ return dur;
+ };
+ /**
+ * Add text track data to a source handler given the captions and
+ * metadata from the buffer.
+ *
+ * @param {Object} sourceHandler the virtual source buffer
+ * @param {Array} captionArray an array of caption data
+ * @param {Array} metadataArray an array of meta data
+ * @private
+ */
+ var addTextTrackData = function addTextTrackData(sourceHandler, captionArray, metadataArray) {
+ var Cue = window_1.WebKitDataCue || window_1.VTTCue;
+
+ if (captionArray) {
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+
+ this.inbandTextTracks_[track].addCue(new Cue(caption.startTime + this.timestampOffset, caption.endTime + this.timestampOffset, caption.text));
+ }, sourceHandler);
+ }
+
+ if (metadataArray) {
+ var videoDuration = durationOfVideo(sourceHandler.mediaSource_.duration);
+
+ metadataArray.forEach(function (metadata) {
+ var time = metadata.cueTime + this.timestampOffset;
+
+ metadata.frames.forEach(function (frame) {
+ var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
+
+ cue.frame = frame;
+ cue.value = frame;
+ deprecateOldCue(cue);
+
+ this.metadataTrack_.addCue(cue);
+ }, this);
+ }, sourceHandler);
+
+ // Updating the metadeta cues so that
+ // the endTime of each cue is the startTime of the next cue
+ // the endTime of last cue is the duration of the video
+ if (sourceHandler.metadataTrack_ && sourceHandler.metadataTrack_.cues && sourceHandler.metadataTrack_.cues.length) {
+ var cues = sourceHandler.metadataTrack_.cues;
+ var cuesArray = [];
+
+ // Create a copy of the TextTrackCueList...
+ // ...disregarding cues with a falsey value
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i]) {
+ cuesArray.push(cues[i]);
+ }
+ }
+
+ // Group cues by their startTime value
+ var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {
+ var timeSlot = obj[cue.startTime] || [];
+
+ timeSlot.push(cue);
+ obj[cue.startTime] = timeSlot;
+
+ return obj;
+ }, {});
+
+ // Sort startTimes by ascending order
+ var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {
+ return Number(a) - Number(b);
+ });
+
+ // Map each cue group's endTime to the next group's startTime
+ sortedStartTimes.forEach(function (startTime, idx) {
+ var cueGroup = cuesGroupedByStartTime[startTime];
+ var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration;
+
+ // Map each cue's endTime the next group's startTime
+ cueGroup.forEach(function (cue) {
+ cue.endTime = nextTime;
+ });
+ });
+ }
+ }
+ };
+
+ var win$1 = typeof window !== 'undefined' ? window : {},
+ TARGET = typeof Symbol === 'undefined' ? '__target' : Symbol(),
+ SCRIPT_TYPE = 'application/javascript',
+ BlobBuilder = win$1.BlobBuilder || win$1.WebKitBlobBuilder || win$1.MozBlobBuilder || win$1.MSBlobBuilder,
+ URL = win$1.URL || win$1.webkitURL || URL && URL.msURL,
+ Worker = win$1.Worker;
+
+ /**
+ * Returns a wrapper around Web Worker code that is constructible.
+ *
+ * @function shimWorker
+ *
+ * @param { String } filename The name of the file
+ * @param { Function } fn Function wrapping the code of the worker
+ */
+ function shimWorker(filename, fn) {
+ return function ShimWorker(forceFallback) {
+ var o = this;
+
+ if (!fn) {
+ return new Worker(filename);
+ } else if (Worker && !forceFallback) {
+ // Convert the function's inner code to a string to construct the worker
+ var source = fn.toString().replace(/^function.+?{/, '').slice(0, -1),
+ objURL = createSourceObject(source);
+
+ this[TARGET] = new Worker(objURL);
+ wrapTerminate(this[TARGET], objURL);
+ return this[TARGET];
+ } else {
+ var selfShim = {
+ postMessage: function postMessage(m) {
+ if (o.onmessage) {
+ setTimeout(function () {
+ o.onmessage({ data: m, target: selfShim });
+ });
+ }
+ }
+ };
+
+ fn.call(selfShim);
+ this.postMessage = function (m) {
+ setTimeout(function () {
+ selfShim.onmessage({ data: m, target: o });
+ });
+ };
+ this.isThisThread = true;
+ }
+ };
+ }
+ // Test Worker capabilities
+ if (Worker) {
+ var testWorker,
+ objURL = createSourceObject('self.onmessage = function () {}'),
+ testArray = new Uint8Array(1);
+
+ try {
+ testWorker = new Worker(objURL);
+
+ // Native browser on some Samsung devices throws for transferables, let's detect it
+ testWorker.postMessage(testArray, [testArray.buffer]);
+ } catch (e) {
+ Worker = null;
+ } finally {
+ URL.revokeObjectURL(objURL);
+ if (testWorker) {
+ testWorker.terminate();
+ }
+ }
+ }
+
+ function createSourceObject(str) {
+ try {
+ return URL.createObjectURL(new Blob([str], { type: SCRIPT_TYPE }));
+ } catch (e) {
+ var blob = new BlobBuilder();
+ blob.append(str);
+ return URL.createObjectURL(blob.getBlob(type));
+ }
+ }
+
+ function wrapTerminate(worker, objURL) {
+ if (!worker || !objURL) return;
+ var term = worker.terminate;
+ worker.objURL = objURL;
+ worker.terminate = function () {
+ if (worker.objURL) URL.revokeObjectURL(worker.objURL);
+ term.call(worker);
+ };
+ }
+
+ var TransmuxWorker = new shimWorker("./transmuxer-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var transmuxerWorker = function () {
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS;
+
+ // pre-calculate constants
+ (function () {
+ var i;
+ types = {
+ avc1: [], // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [], // codingname
+ mvex: [],
+ mvhd: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ };
+
+ // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length;
+
+ // calculate the total size we need to allocate
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4);
+
+ // copy the payload into the result
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]);
+
+ // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length;
+ // build traf boxes for each track fragment
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i;
+
+ // leave the full box header (4 bytes) all zero
+
+ // write the sample table
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i;
+
+ // assemble the SPSs
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ }
+
+ // assemble the PPSs
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ return box(types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length // numOfSequenceParameterSets
+ ]).concat(sequenceParameterSets).concat([pps.length // numOfPictureParameterSets
+ ]).concat(pictureParameterSets))), // "PPS"
+ box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
+ );
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([
+
+ // SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+
+ return box(types.tkhd, result);
+ };
+
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF]));
+
+ // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+
+ // audio tracks require less metadata
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ }
+
+ // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]);
+ // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader;
+
+ // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0;
+
+ // trun flag constants
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+
+ var toUnsigned = function toUnsigned(value) {
+ return value >>> 0;
+ };
+
+ var bin = {
+ toUnsigned: toUnsigned
+ };
+
+ var toUnsigned$1 = bin.toUnsigned;
+ var _findBox, parseType, timescale, startTime, getVideoTrackIds;
+
+ // Find the data for a box specified by its path
+ _findBox = function findBox(data, path) {
+ var results = [],
+ i,
+ size,
+ type,
+ end,
+ subresults;
+
+ if (!path.length) {
+ // short-circuit the search for empty paths
+ return null;
+ }
+
+ for (i = 0; i < data.byteLength;) {
+ size = toUnsigned$1(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+
+ type = parseType(data.subarray(i + 4, i + 8));
+
+ end = size > 1 ? i + size : data.byteLength;
+
+ if (type === path[0]) {
+ if (path.length === 1) {
+ // this is the end of the path and we've found the box we were
+ // looking for
+ results.push(data.subarray(i + 8, end));
+ } else {
+ // recursively search for the next box along the path
+ subresults = _findBox(data.subarray(i + 8, end), path.slice(1));
+ if (subresults.length) {
+ results = results.concat(subresults);
+ }
+ }
+ }
+ i = end;
+ }
+
+ // we've finished searching all of data
+ return results;
+ };
+
+ /**
+ * Returns the string representation of an ASCII encoded four byte buffer.
+ * @param buffer {Uint8Array} a four-byte buffer to translate
+ * @return {string} the corresponding string
+ */
+ parseType = function parseType(buffer) {
+ var result = '';
+ result += String.fromCharCode(buffer[0]);
+ result += String.fromCharCode(buffer[1]);
+ result += String.fromCharCode(buffer[2]);
+ result += String.fromCharCode(buffer[3]);
+ return result;
+ };
+
+ /**
+ * Parses an MP4 initialization segment and extracts the timescale
+ * values for any declared tracks. Timescale values indicate the
+ * number of clock ticks per second to assume for time-based values
+ * elsewhere in the MP4.
+ *
+ * To determine the start time of an MP4, you need two pieces of
+ * information: the timescale unit and the earliest base media decode
+ * time. Multiple timescales can be specified within an MP4 but the
+ * base media decode time is always expressed in the timescale from
+ * the media header box for the track:
+ * ```
+ * moov > trak > mdia > mdhd.timescale
+ * ```
+ * @param init {Uint8Array} the bytes of the init segment
+ * @return {object} a hash of track ids to timescale values or null if
+ * the init segment is malformed.
+ */
+ timescale = function timescale(init) {
+ var result = {},
+ traks = _findBox(init, ['moov', 'trak']);
+
+ // mdhd timescale
+ return traks.reduce(function (result, trak) {
+ var tkhd, version, index, id, mdhd;
+
+ tkhd = _findBox(trak, ['tkhd'])[0];
+ if (!tkhd) {
+ return null;
+ }
+ version = tkhd[0];
+ index = version === 0 ? 12 : 20;
+ id = toUnsigned$1(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+
+ mdhd = _findBox(trak, ['mdia', 'mdhd'])[0];
+ if (!mdhd) {
+ return null;
+ }
+ version = mdhd[0];
+ index = version === 0 ? 12 : 20;
+ result[id] = toUnsigned$1(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+ return result;
+ }, result);
+ };
+
+ /**
+ * Determine the base media decode start time, in seconds, for an MP4
+ * fragment. If multiple fragments are specified, the earliest time is
+ * returned.
+ *
+ * The base media decode time can be parsed from track fragment
+ * metadata:
+ * ```
+ * moof > traf > tfdt.baseMediaDecodeTime
+ * ```
+ * It requires the timescale value from the mdhd to interpret.
+ *
+ * @param timescale {object} a hash of track ids to timescale values.
+ * @return {number} the earliest base media decode start time for the
+ * fragment, in seconds
+ */
+ startTime = function startTime(timescale, fragment) {
+ var trafs, baseTimes, result;
+
+ // we need info from two childrend of each track fragment box
+ trafs = _findBox(fragment, ['moof', 'traf']);
+
+ // determine the start times for each track
+ baseTimes = [].concat.apply([], trafs.map(function (traf) {
+ return _findBox(traf, ['tfhd']).map(function (tfhd) {
+ var id, scale, baseTime;
+
+ // get the track id from the tfhd
+ id = toUnsigned$1(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]);
+ // assume a 90kHz clock if no timescale was specified
+ scale = timescale[id] || 90e3;
+
+ // get the base media decode time from the tfdt
+ baseTime = _findBox(traf, ['tfdt']).map(function (tfdt) {
+ var version, result;
+
+ version = tfdt[0];
+ result = toUnsigned$1(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);
+ if (version === 1) {
+ result *= Math.pow(2, 32);
+ result += toUnsigned$1(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);
+ }
+ return result;
+ })[0];
+ baseTime = baseTime || Infinity;
+
+ // convert base time to seconds
+ return baseTime / scale;
+ });
+ }));
+
+ // return the minimum
+ result = Math.min.apply(null, baseTimes);
+ return isFinite(result) ? result : 0;
+ };
+
+ /**
+ * Find the trackIds of the video tracks in this source.
+ * Found by parsing the Handler Reference and Track Header Boxes:
+ * moov > trak > mdia > hdlr
+ * moov > trak > tkhd
+ *
+ * @param {Uint8Array} init - The bytes of the init segment for this source
+ * @return {Number[]} A list of trackIds
+ *
+ * @see ISO-BMFF-12/2015, Section 8.4.3
+ **/
+ getVideoTrackIds = function getVideoTrackIds(init) {
+ var traks = _findBox(init, ['moov', 'trak']);
+ var videoTrackIds = [];
+
+ traks.forEach(function (trak) {
+ var hdlrs = _findBox(trak, ['mdia', 'hdlr']);
+ var tkhds = _findBox(trak, ['tkhd']);
+
+ hdlrs.forEach(function (hdlr, index) {
+ var handlerType = parseType(hdlr.subarray(8, 12));
+ var tkhd = tkhds[index];
+ var view;
+ var version;
+ var trackId;
+
+ if (handlerType === 'vide') {
+ view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+ version = view.getUint8(0);
+ trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+
+ videoTrackIds.push(trackId);
+ }
+ });
+ });
+
+ return videoTrackIds;
+ };
+
+ var probe$$1 = {
+ findBox: _findBox,
+ parseType: parseType,
+ timescale: timescale,
+ startTime: startTime,
+ videoTrackIds: getVideoTrackIds
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2014 Brightcove
+ * All rights reserved.
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+
+ var Stream = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+ this.off = function (type, listener) {
+ var index;
+ if (!listeners[type]) {
+ return false;
+ }
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+ Stream.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+
+ return destination;
+ };
+
+ // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+ Stream.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ var stream = Stream;
+
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = [];
+
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i];
+
+ // Split on 'aud'-type nal units
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ frames.push(currentFrame);
+ }
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ }
+
+ // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ }
+
+ // Push the final frame
+ frames.push(currentFrame);
+ return frames;
+ };
+
+ // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = [];
+
+ // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts;
+
+ // store some metadata about all the Gops
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+
+ // push the final Gop
+ gops.push(currentGop);
+ return gops;
+ };
+
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount;
+
+ // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ };
+
+ // generate the track's sample table from an array of gops
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ sample = sampleForFrame(currentFrame, dataOffset);
+
+ dataOffset += sample.size;
+
+ samples.push(sample);
+ }
+ }
+ return samples;
+ };
+
+ // generate the track's raw mdat data from an array of gops
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer);
+
+ // For each Gop..
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ // For each Frame..
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ // For each NAL..
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData
+ };
+
+ var ONE_SECOND_IN_TS = 90000; // 90kHz clock
+
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts;
+
+ // Optionally adjust the time so the first segment starts at zero.
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ }
+
+ // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime;
+
+ // Add to that the distance this segment is from the very first
+ baseMediaDecodeTime += minSegmentDts;
+
+ // baseMediaDecodeTime must not become negative
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0;
+
+ // go through the sei_rbsp parsing each each individual sei_message
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ }
+
+ // Parse payload type
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+ payloadType += bytes[i++];
+
+ // Parse payload size
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+ payloadSize += bytes[i++];
+
+ // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ }
+
+ // skip the payload and parse the next message
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ };
+
+ // see ANSI/SCTE 128-1 (2013), section 8.1
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ }
+
+ // itu_t_t35_provider_code should be 49 (ATSC) for captions
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ }
+
+ // the user_identifier should be "GA94" to indicate ATSC1 data
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ }
+
+ // finally, user_data_type_code should be 0x03 for caption data
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ }
+
+ // return the user_data_type_structure and strip the trailing
+ // marker bits
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ };
+
+ // see CEA-708-D, section 4.4
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data;
+
+ // if this is just filler, return immediately
+ if (!(userData[0] & 0x40)) {
+ return results;
+ }
+
+ // parse out the cc_data_1 and cc_data_2 fields
+ count = userData[0] & 0x1f;
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ };
+
+ // capture cc data when cc_valid is 1
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ // exports
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ };
+
+ // -----------------
+ // Link To Transport
+ // -----------------
+
+
+ var CaptionStream = function CaptionStream() {
+
+ CaptionStream.prototype.init.call(this);
+
+ this.captionPackets_ = [];
+
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+
+ this.reset();
+
+ // forward data and done events from CCs to this CaptionStream
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new stream();
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets;
+
+ // only examine SEI NALs
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ }
+
+ // parse the sei
+ sei = captionPacketParser.parseSei(event.escapedRBSP);
+
+ // ignore everything but user_data_registered_itu_t_t35
+ if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ }
+
+ // parse out the user data payload
+ userData = captionPacketParser.parseUserData(sei);
+
+ // ignore unrecognized userData
+ if (!userData) {
+ return;
+ }
+
+ // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+ return;
+ }
+
+ // parse out CC data packets and save them for later
+ newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flush = function () {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ }
+
+ // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ });
+
+ // sort caption byte-pairs based on their PTS values
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+ return a.pts - b.pts;
+ });
+
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ }
+ // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+ }, this);
+
+ this.captionPackets_.length = 0;
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ };
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, discard the
+ // data; we don't want jumbled captions
+ return;
+ }
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ // ----------------------
+ // Session to Application
+ // ----------------------
+
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1, // á
+ 0x5c: 0xe9, // é
+ 0x5e: 0xed, // í
+ 0x5f: 0xf3, // ó
+ 0x60: 0xfa, // ú
+ 0x7b: 0xe7, // ç
+ 0x7c: 0xf7, // ÷
+ 0x7d: 0xd1, // Ñ
+ 0x7e: 0xf1, // ñ
+ 0x7f: 0x2588, // █
+ 0x0130: 0xae, // ®
+ 0x0131: 0xb0, // °
+ 0x0132: 0xbd, // ½
+ 0x0133: 0xbf, // ¿
+ 0x0134: 0x2122, // ™
+ 0x0135: 0xa2, // ¢
+ 0x0136: 0xa3, // £
+ 0x0137: 0x266a, // ♪
+ 0x0138: 0xe0, // à
+ 0x0139: 0xa0, //
+ 0x013a: 0xe8, // è
+ 0x013b: 0xe2, // â
+ 0x013c: 0xea, // ê
+ 0x013d: 0xee, // î
+ 0x013e: 0xf4, // ô
+ 0x013f: 0xfb, // û
+ 0x0220: 0xc1, // Á
+ 0x0221: 0xc9, // É
+ 0x0222: 0xd3, // Ó
+ 0x0223: 0xda, // Ú
+ 0x0224: 0xdc, // Ü
+ 0x0225: 0xfc, // ü
+ 0x0226: 0x2018, // ‘
+ 0x0227: 0xa1, // ¡
+ 0x0228: 0x2a, // *
+ 0x0229: 0x27, // '
+ 0x022a: 0x2014, // —
+ 0x022b: 0xa9, // ©
+ 0x022c: 0x2120, // ℠
+ 0x022d: 0x2022, // •
+ 0x022e: 0x201c, // “
+ 0x022f: 0x201d, // ”
+ 0x0230: 0xc0, // À
+ 0x0231: 0xc2, // Â
+ 0x0232: 0xc7, // Ç
+ 0x0233: 0xc8, // È
+ 0x0234: 0xca, // Ê
+ 0x0235: 0xcb, // Ë
+ 0x0236: 0xeb, // ë
+ 0x0237: 0xce, // Î
+ 0x0238: 0xcf, // Ï
+ 0x0239: 0xef, // ï
+ 0x023a: 0xd4, // Ô
+ 0x023b: 0xd9, // Ù
+ 0x023c: 0xf9, // ù
+ 0x023d: 0xdb, // Û
+ 0x023e: 0xab, // «
+ 0x023f: 0xbb, // »
+ 0x0320: 0xc3, // Ã
+ 0x0321: 0xe3, // ã
+ 0x0322: 0xcd, // Í
+ 0x0323: 0xcc, // Ì
+ 0x0324: 0xec, // ì
+ 0x0325: 0xd2, // Ò
+ 0x0326: 0xf2, // ò
+ 0x0327: 0xd5, // Õ
+ 0x0328: 0xf5, // õ
+ 0x0329: 0x7b, // {
+ 0x032a: 0x7d, // }
+ 0x032b: 0x5c, // \
+ 0x032c: 0x5e, // ^
+ 0x032d: 0x5f, // _
+ 0x032e: 0x7c, // |
+ 0x032f: 0x7e, // ~
+ 0x0330: 0xc4, // Ä
+ 0x0331: 0xe4, // ä
+ 0x0332: 0xd6, // Ö
+ 0x0333: 0xf6, // ö
+ 0x0334: 0xdf, // ß
+ 0x0335: 0xa5, // ¥
+ 0x0336: 0xa4, // ¤
+ 0x0337: 0x2502, // │
+ 0x0338: 0xc5, // Å
+ 0x0339: 0xe5, // å
+ 0x033a: 0xd8, // Ø
+ 0x033b: 0xf8, // ø
+ 0x033c: 0x250c, // ┌
+ 0x033d: 0x2510, // ┐
+ 0x033e: 0x2514, // └
+ 0x033f: 0x2518 // ┘
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ };
+
+ // the index of the last row in a CEA-608 display buffer
+ var BOTTOM_ROW = 14;
+
+ // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420];
+
+ // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+ while (i--) {
+ result.push('');
+ }
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text;
+ // remove the parity bits
+ data = packet.ccData & 0x7f7f;
+
+ // ignore duplicate control codes; the spec demands they're sent twice
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ }
+
+ // Store control codes
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts);
+ // if a caption was being displayed, it's gone now
+ this.flushDisplayed(packet.pts);
+
+ // flip memory
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap;
+
+ // start measuring the time to display the caption
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts;
+
+ // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts);
+
+ // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ // Detect offset control codes and adjust cursor
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03;
+
+ // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20);
+
+ // Configure the caption window if we're in roll-up mode
+ if (this.mode_ === 'rollUp') {
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ }
+ // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ }
+
+ // We have a normal character in char0, and possibly one in char1
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+ };
+ };
+ Cea608Stream.prototype = new stream();
+ // Trigger a cue point that captures the current state of the
+ // display buffer
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_
+ // remove spaces from the start and end of the string
+ .map(function (row) {
+ return row.trim();
+ })
+ // combine all text rows to display in one cue
+ .join('\n')
+ // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn';
+ // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null;
+
+ // Track row and column for proper line-breaking and spacing
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2;
+
+ // This variable holds currently-applied formatting
+ this.formatting_ = [];
+ };
+
+ /**
+ * Sets up control code and related constants for this instance
+ */
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ }
+
+ // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+ this.PADDING_ = 0x0000;
+ // Pop-on Mode
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f;
+ // Roll-up Mode
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d;
+ // paint-on mode
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29;
+ // Erasure
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+ Cea608Stream.prototype.isNormalChar = function (char) {
+ return char >= 0x20 && char <= 0x7f;
+ };
+
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp';
+ // Spec says to wipe memories when switching to roll-up
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ };
+
+ // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ };
+
+ // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ };
+
+ // Mode Implementations
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_];
+
+ // buffer characters
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i;
+ // clear out inactive rows
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ }
+ // shift displayed rows up
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ }
+ // clear out the bottom row
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ // exports
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+
+ var MAX_TS = 8589934592;
+
+ var RO_THRESH = 4294967296;
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ }
+
+ // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+
+ TimestampRolloverStream.prototype.init.call(this);
+
+ this.type_ = type;
+
+ this.push = function (data) {
+ if (data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+
+ lastDTS = data.dts;
+
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+ };
+
+ TimestampRolloverStream.prototype = new stream();
+
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ // do not include the null terminator in the tag value
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+
+
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+
+
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+
+
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this);
+
+ // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+ this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ }
+
+ // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ }
+
+ // ignore events that don't look like ID3 data
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+ return;
+ }
+
+ // add this chunk to the data we've collected so far
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength;
+
+ // grab the size of the entire frame from the ID3 header
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10));
+
+ // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+ tagSize += 10;
+ }
+
+ // if the entire frame has not arrived, wait for more data
+ if (bufferSize < tagSize) {
+ return;
+ }
+
+ // collect the entire frame so it can be parsed
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ }
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14));
+
+ // clip any padding off the end
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame);
+
+ // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size;
+ // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+ this.trigger('timestamp', frame);
+ }
+ }
+ tag.frames.push(frame);
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+ this.trigger('data', tag);
+ };
+ };
+ _MetadataStream.prototype = new stream();
+
+ var metadataStream = _MetadataStream;
+
+ var TimestampRolloverStream$1 = timestampRolloverStream.TimestampRolloverStream;
+
+ // object types
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream;
+
+ // constants
+ var MP2T_PACKET_LENGTH = 188,
+
+
+ // bytes
+ SYNC_BYTE = 0x47;
+
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this);
+
+ // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ }
+
+ // While we have enough data for a packet
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ }
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+ this.trigger('done');
+ };
+ };
+ _TransportPacketStream.prototype = new stream();
+
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+ _TransportParseStream.prototype.init.call(this);
+ self = this;
+
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0;
+
+ // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+
+ // skip the PSI header and parse the first PMT entry
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset;
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(payload[5] & 0x01)) {
+ return;
+ }
+
+ // overwrite any existing program map table
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ };
+
+ // the mapping table ends at the end of the current section
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11];
+
+ // advance the offset to the first entry in the mapping table
+ offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2];
+
+ // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+ if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ }
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ }
+
+ // record the map on the packet as well
+ pmt.programMapTable = self.programMapTable;
+ };
+
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40);
+
+ // pid is a 13-bit field starting at the last bit of packet[1]
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2];
+
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ }
+
+ // parse the rest of the packet based on the type
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+
+ // if there are any packets waiting for a PMT to be found, process them now
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = streamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = streamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+
+ this.trigger('data', result);
+ };
+ };
+ _TransportParseStream.prototype = new stream();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+
+
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags;
+
+ // get the packet length, this will be 0 for video
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]);
+
+ // find out if this packets starts a new keyframe
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0;
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = payload[7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream$$1, type, forceFlush) {
+ var packetData = new Uint8Array(stream$$1.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment;
+
+ // do nothing if there is not enough buffered data for a complete
+ // PES header
+ if (!stream$$1.data.length || stream$$1.size < 9) {
+ return;
+ }
+ event.trackId = stream$$1.data[0].pid;
+
+ // reassemble the packet
+ for (i = 0; i < stream$$1.data.length; i++) {
+ fragment = stream$$1.data[i];
+
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ }
+
+ // parse assembled packet's PES header
+ parsePes(packetData, event);
+
+ // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+ packetFlushable = type === 'video' || event.packetLength <= stream$$1.size;
+
+ // flush pending packets if the conditions are right
+ if (forceFlush || packetFlushable) {
+ stream$$1.size = 0;
+ stream$$1.data.length = 0;
+ }
+
+ // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+ this.push = function (data) {
+ ({
+ pat: function pat() {
+ // we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream$$1, streamType;
+
+ switch (data.streamType) {
+ case streamTypes.H264_STREAM_TYPE:
+ case streamTypes.H264_STREAM_TYPE:
+ stream$$1 = video;
+ streamType = 'video';
+ break;
+ case streamTypes.ADTS_STREAM_TYPE:
+ stream$$1 = audio;
+ streamType = 'audio';
+ break;
+ case streamTypes.METADATA_STREAM_TYPE:
+ stream$$1 = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+ default:
+ // ignore unknown stream types
+ return;
+ }
+
+ // if a new packet is starting, we can flush the completed
+ // packet
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream$$1, streamType, true);
+ }
+
+ // buffer this fragment until we are sure we've received the
+ // complete payload
+ stream$$1.data.push(data);
+ stream$$1.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ },
+ programMapTable = data.programMapTable;
+
+ // translate audio and video streams to tracks
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+ this.flush = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ this.trigger('done');
+ };
+ };
+ _ElementaryStream.prototype = new stream();
+
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: captionStream.CaptionStream,
+ Cea608Stream: captionStream.Cea608Stream,
+ MetadataStream: metadataStream
+ };
+
+ for (var type in streamTypes) {
+ if (streamTypes.hasOwnProperty(type)) {
+ m2ts[type] = streamTypes[type];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+ _AdtsStream = function AdtsStream() {
+ var buffer;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameNum = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ }
+
+ // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ }
+
+ // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+ while (i + 5 < buffer.length) {
+
+ // Loook for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2;
+
+ // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * 90000 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+
+ frameEnd = i + frameLength;
+
+ // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+ if (buffer.byteLength < frameEnd) {
+ return;
+ }
+
+ // Otherwise, deliver the complete AAC frame
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+
+ // If the buffer is empty, clear it and return
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ }
+
+ frameNum++;
+
+ // Remove the finished frame from the buffer and start the process again
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+ this.flush = function () {
+ this.trigger('done');
+ };
+ };
+
+ _AdtsStream.prototype = new stream();
+
+ var adts = _AdtsStream;
+
+ var ExpGolomb;
+
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+ ExpGolomb = function ExpGolomb(workingData) {
+ var
+ // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+
+
+ // the current word being examined
+ workingWord = 0,
+
+
+ // :uint
+
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+
+ // ():uint
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ };
+
+ // ():uint
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ };
+
+ // ():void
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0);
+
+ // track the amount of workingData that has been processed
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ };
+
+ // (count:int):void
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+
+ this.loadWord();
+
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ };
+
+ // (size:int):uint
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+
+
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+ workingBitsAvailable -= bits;
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+ return valu;
+ };
+
+ // ():uint
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ }
+
+ // we exhausted workingWord and still have not found a 1
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ };
+
+ // ():void
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():void
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():uint
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+ return this.readBits(clz + 1) - 1;
+ };
+
+ // ():int
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ };
+
+ // Some convenience functions
+ // :Boolean
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ };
+
+ // ():int
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var _H264Stream, _NalByteStream;
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+ _NalByteStream.prototype.init.call(this);
+
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+
+ // advance the sync point to a NAL start, if necessary
+ for (; syncPoint < buffer.byteLength - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < buffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ }
+
+ // deliver the NAL unit if it isn't empty
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ }
+
+ // drop trailing zeroes
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < buffer.length);
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ }
+
+ // deliver the NAL unit
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ }
+ // filter out the NAL units that were delivered
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ }
+ // reset the stream state
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+ };
+ _NalByteStream.prototype = new stream();
+
+ // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+ self = this;
+
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+
+ nalByteStream.push(packet);
+ };
+
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ }
+ // This triggers data on the H264Stream
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+
+ expGolombDecoder = new expGolomb(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+
+ // some profiles have more optional data we don't need
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];break;
+ case 2:
+ sarRatio = [12, 11];break;
+ case 3:
+ sarRatio = [10, 11];break;
+ case 4:
+ sarRatio = [16, 11];break;
+ case 5:
+ sarRatio = [40, 33];break;
+ case 6:
+ sarRatio = [24, 11];break;
+ case 7:
+ sarRatio = [20, 11];break;
+ case 8:
+ sarRatio = [32, 11];break;
+ case 9:
+ sarRatio = [80, 33];break;
+ case 10:
+ sarRatio = [18, 11];break;
+ case 11:
+ sarRatio = [15, 11];break;
+ case 12:
+ sarRatio = [64, 33];break;
+ case 13:
+ sarRatio = [160, 99];break;
+ case 14:
+ sarRatio = [4, 3];break;
+ case 15:
+ sarRatio = [3, 2];break;
+ case 16:
+ sarRatio = [2, 1];break;
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
+ };
+ };
+ };
+ _H264Stream.prototype = new stream();
+
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+
+ // Constants
+ var _AacStream;
+
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.parseId3TagSize = function (header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ this.parseAdtsSize = function (header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ }
+
+ // check framesize
+ frameSize = this.parseId3TagSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if (everything[byteIndex] & 0xff === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = this.parseAdtsSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+ byteIndex++;
+ }
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+ };
+
+ _AacStream.prototype = new stream();
+
+ var aac = _AacStream;
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+ while (count--) {
+ a.push(0);
+ }
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ };
+
+ // Frames-of-silence to use for filling in missing AAC frames
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+
+ var silence = makeTable(coneOfSilence);
+
+ var ONE_SECOND_IN_TS$1 = 90000,
+
+
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS$1;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS$1;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+
+ var clock = {
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs
+ };
+
+ var H264Stream = h264.H264Stream;
+
+ // constants
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility'];
+
+ var ONE_SECOND_IN_TS$2 = 90000; // 90kHz clock
+
+ // object types
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+
+ // Helper functions
+ var isLikelyAacData, arrayEquals, sumFrameByteLengths;
+
+ isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+ arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ }
+
+ // compare the value of each element in the array
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+ sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0;
+
+ // sum the byteLength's all each nal unit in the frame
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ };
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ }
+
+ // buffer audio data until end() is called
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes;
+
+ // return early if no audio data has been observed
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = this.trimAdtsFramesByEarliestDts_(adtsFrames);
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.prefixWithSilence_(track, frames);
+
+ // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+ track.samples = this.generateSampleTable_(frames);
+
+ // concatenate the audio data to constuct the mdat
+ mdat = mp4Generator.mdat(this.concatenateFrameData_(frames));
+
+ adtsFrames = [];
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ trackDecodeInfo.clearDtsInfo(track);
+
+ this.trigger('data', { track: track, boxes: boxes });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+ this.prefixWithSilence_ = function (track, frames) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate);
+ // determine frame clock duration based on sample rate, round up to avoid overfills
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$2 / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime);
+ // number of full frames in the audio gap
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ }
+
+ // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+ if (audioFillFrameCount < 1 || audioFillDuration > ONE_SECOND_IN_TS$2 / 2) {
+ return;
+ }
+
+ silentFrame = silence[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ frames.splice(i, 0, {
+ data: silentFrame
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ };
+
+ // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+ this.trimAdtsFramesByEarliestDts_ = function (adtsFrames) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ }
+
+ // We will need to recalculate the earliest segment Dts
+ track.minSegmentDts = Infinity;
+
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ }
+ // Otherwise, discard it
+ return false;
+ });
+ };
+
+ // generate the track's raw mdat data from an array of frames
+ this.generateSampleTable_ = function (frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+ });
+ }
+ return samples;
+ };
+
+ // generate the track's sample table from an array of frames
+ this.concatenateFrameData_ = function (frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+ return data;
+ };
+ };
+
+ _AudioSegmentStream.prototype = new stream();
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+
+ this.gopCache_ = [];
+
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+ this.push = function (nalUnit) {
+ trackDecodeInfo.collectDtsInfo(track, nalUnit);
+
+ // record the track config
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ }
+
+ // buffer video until flush() is called
+ nalUnits.push(nalUnit);
+ };
+
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+ this.flush = function () {
+ var frames, gopForFusion, gops, moof, mdat, boxes;
+
+ // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+ nalUnits.shift();
+ }
+
+ // Return early if no video data has been observed
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+ frames = frameUtils.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils.groupFramesIntoGops(frames);
+
+ // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ gops.unshift(gopForFusion);
+ // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils.extendFirstKeyFrame(gops);
+ }
+ }
+
+ // Trim gops to align with gopsToAlignWith
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ // return early no gops can be aligned with desired gopsToAlignWith
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+ trackDecodeInfo.clearDtsInfo(track);
+
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo.collectDtsInfo(track, gops);
+
+ // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+ track.samples = frameUtils.generateSampleTable(gops);
+
+ // Concatenate the video data and construct the mdat
+ mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
+
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+
+ // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // Bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ this.trigger('data', { track: track, boxes: boxes });
+
+ this.resetStream_();
+
+ // Continue with the flush process now
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo.clearDtsInfo(track);
+
+ // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+ config = undefined;
+ pps = undefined;
+ };
+
+ // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+
+
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+
+
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i;
+
+ // Search for the GOP nearest to the beginning of this nal unit
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop;
+
+ // Reject Gops with different SPS or PPS
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ }
+
+ // Reject Gops that would require a negative baseMediaDecodeTime
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ }
+
+ // The distance between the end of the gop and the start of the nalUnit
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration;
+
+ // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+ return null;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ }
+
+ // current gop starts before the current gop we want to align on. so increment gop
+ // index
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, { byteLength: 0, duration: 0, nalCount: 0 });
+
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new stream();
+
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ */
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this);
+
+ // Take output from multiple
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ }
+ // buffer incoming id3 tags until the final flush
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ }
+
+ // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+ this.pendingTracks.push(output.track);
+ this.pendingBoxes.push(output.boxes);
+ this.pendingBytes += output.boxes.byteLength;
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ }
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new stream();
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+
+ initSegment = mp4Generator.initSegment(this.pendingTracks);
+
+ // Create a new typed array to hold the init segment
+ event.initSegment = new Uint8Array(initSegment.byteLength);
+
+ // Create an init segment containing a moov
+ // and track definitions
+ event.initSegment.set(initSegment);
+
+ // Create a new typed array to hold the moof+mdats
+ event.data = new Uint8Array(this.pendingBytes);
+
+ // Append each moof+mdat (one per track) together
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ }
+
+ // Translate caption PTS times into second offsets into the
+ // video timeline for the segment, and add track info
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = caption.startPts - timelineStartPts;
+ caption.startTime /= 90e3;
+ caption.endTime = caption.endPts - timelineStartPts;
+ caption.endTime /= 90e3;
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ }
+
+ // Translate ID3 frame PTS times into second offsets into the
+ // video timeline for the segment
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = id3.pts - timelineStartPts;
+ id3.cueTime /= 90e3;
+ event.metadata.push(id3);
+ }
+ // We add this to every single emitted segment even though we only need
+ // it for the first
+ event.metadata.dispatchType = this.metadataStream.dispatchType;
+
+ // Reset stream state
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0;
+
+ // Emit the built segment
+ this.trigger('data', event);
+
+ // Only emit `done` if all tracks have been flushed and emitted
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.aacStream = new aac();
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ };
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.packetStream = new m2ts_1.TransportPacketStream();
+ pipeline.parseStream = new m2ts_1.TransportParseStream();
+ pipeline.elementaryStream = new m2ts_1.ElementaryStream();
+ pipeline.videoTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('video');
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts_1.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream;
+
+ // disassemble MPEG2-TS packets into elementary streams
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream);
+
+ // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+ pipeline.elementaryStream.pipe(pipeline.videoTimestampRolloverStream).pipe(pipeline.h264Stream);
+ pipeline.elementaryStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+
+ pipeline.elementaryStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ // Hook up CEA-608/708 caption stream
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length;
+
+ // scan the tracks listed in the metadata
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ }
+
+ // hook up the video segment stream to the first track with h264 data
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo;
+ // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+
+ // Set up the final part of the video pipeline
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ // hook up the segment streams once track metadata is delivered
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(audioTrack);
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ pipeline.videoTimestampRolloverStream.discontinuity();
+ }
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.timedMetadataTimestampRolloverStream) {
+ pipeline.timedMetadataTimestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ };
+
+ // feed incoming data to the front of the parsing pipeline
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+ hasFlushed = false;
+ }
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ };
+
+ // flush any buffered data
+ this.flush = function () {
+ hasFlushed = true;
+ // Start at the top of the pipeline and flush all pending work
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ // Caption data has to be reset when seeking outside buffered range
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+ _Transmuxer.prototype = new stream();
+
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES
+ };
+
+ var inspectMp4,
+ _textifyMp,
+ parseType$1 = probe$$1.parseType,
+ parseMp4Date = function parseMp4Date(seconds) {
+ return new Date(seconds * 1000 - 2082844800000);
+ },
+ parseSampleFlags = function parseSampleFlags(flags) {
+ return {
+ isLeading: (flags[0] & 0x0c) >>> 2,
+ dependsOn: flags[0] & 0x03,
+ isDependedOn: (flags[1] & 0xc0) >>> 6,
+ hasRedundancy: (flags[1] & 0x30) >>> 4,
+ paddingValue: (flags[1] & 0x0e) >>> 1,
+ isNonSyncSample: flags[1] & 0x01,
+ degradationPriority: flags[2] << 8 | flags[3]
+ };
+ },
+ nalParse = function nalParse(avcStream) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ i,
+ length;
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ result.push('<span style=\'color:red;\'>MALFORMED DATA</span>');
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x01:
+ result.push('slice_layer_without_partitioning_rbsp');
+ break;
+ case 0x05:
+ result.push('slice_layer_without_partitioning_rbsp_idr');
+ break;
+ case 0x06:
+ result.push('sei_rbsp');
+ break;
+ case 0x07:
+ result.push('seq_parameter_set_rbsp');
+ break;
+ case 0x08:
+ result.push('pic_parameter_set_rbsp');
+ break;
+ case 0x09:
+ result.push('access_unit_delimiter_rbsp');
+ break;
+ default:
+ result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F);
+ break;
+ }
+ }
+ return result;
+ },
+
+
+ // registry of handlers for individual mp4 box types
+ parse$$1 = {
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ avc1: function avc1(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ dataReferenceIndex: view.getUint16(6),
+ width: view.getUint16(24),
+ height: view.getUint16(26),
+ horizresolution: view.getUint16(28) + view.getUint16(30) / 16,
+ vertresolution: view.getUint16(32) + view.getUint16(34) / 16,
+ frameCount: view.getUint16(40),
+ depth: view.getUint16(74),
+ config: inspectMp4(data.subarray(78, data.byteLength))
+ };
+ },
+ avcC: function avcC(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ configurationVersion: data[0],
+ avcProfileIndication: data[1],
+ profileCompatibility: data[2],
+ avcLevelIndication: data[3],
+ lengthSizeMinusOne: data[4] & 0x03,
+ sps: [],
+ pps: []
+ },
+ numOfSequenceParameterSets = data[5] & 0x1f,
+ numOfPictureParameterSets,
+ nalSize,
+ offset,
+ i;
+
+ // iterate past any SPSs
+ offset = 6;
+ for (i = 0; i < numOfSequenceParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ // iterate past any PPSs
+ numOfPictureParameterSets = data[offset];
+ offset++;
+ for (i = 0; i < numOfPictureParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ return result;
+ },
+ btrt: function btrt(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ bufferSizeDB: view.getUint32(0),
+ maxBitrate: view.getUint32(4),
+ avgBitrate: view.getUint32(8)
+ };
+ },
+ esds: function esds(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ esId: data[6] << 8 | data[7],
+ streamPriority: data[8] & 0x1f,
+ decoderConfig: {
+ objectProfileIndication: data[11],
+ streamType: data[12] >>> 2 & 0x3f,
+ bufferSize: data[13] << 16 | data[14] << 8 | data[15],
+ maxBitrate: data[16] << 24 | data[17] << 16 | data[18] << 8 | data[19],
+ avgBitrate: data[20] << 24 | data[21] << 16 | data[22] << 8 | data[23],
+ decoderConfigDescriptor: {
+ tag: data[24],
+ length: data[25],
+ audioObjectType: data[26] >>> 3 & 0x1f,
+ samplingFrequencyIndex: (data[26] & 0x07) << 1 | data[27] >>> 7 & 0x01,
+ channelConfiguration: data[27] >>> 3 & 0x0f
+ }
+ }
+ };
+ },
+ ftyp: function ftyp(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ majorBrand: parseType$1(data.subarray(0, 4)),
+ minorVersion: view.getUint32(4),
+ compatibleBrands: []
+ },
+ i = 8;
+ while (i < data.byteLength) {
+ result.compatibleBrands.push(parseType$1(data.subarray(i, i + 4)));
+ i += 4;
+ }
+ return result;
+ },
+ dinf: function dinf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ dref: function dref(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ dataReferences: inspectMp4(data.subarray(8))
+ };
+ },
+ hdlr: function hdlr(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ handlerType: parseType$1(data.subarray(8, 12)),
+ name: ''
+ },
+ i = 8;
+
+ // parse out the name field
+ for (i = 24; i < data.byteLength; i++) {
+ if (data[i] === 0x00) {
+ // the name field is null-terminated
+ i++;
+ break;
+ }
+ result.name += String.fromCharCode(data[i]);
+ }
+ // decode UTF-8 to javascript's internal representation
+ // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ result.name = decodeURIComponent(escape(result.name));
+
+ return result;
+ },
+ mdat: function mdat(data) {
+ return {
+ byteLength: data.byteLength,
+ nals: nalParse(data)
+ };
+ },
+ mdhd: function mdhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ language,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ language: ''
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ // language is stored as an ISO-639-2/T code in an array of three 5-bit fields
+ // each field is the packed difference between its ASCII value and 0x60
+ language = view.getUint16(i);
+ result.language += String.fromCharCode((language >> 10) + 0x60);
+ result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60);
+ result.language += String.fromCharCode((language & 0x1f) + 0x60);
+
+ return result;
+ },
+ mdia: function mdia(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mfhd: function mfhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sequenceNumber: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ },
+ minf: function minf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ mp4a: function mp4a(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ // 6 bytes reserved
+ dataReferenceIndex: view.getUint16(6),
+ // 4 + 4 bytes reserved
+ channelcount: view.getUint16(16),
+ samplesize: view.getUint16(18),
+ // 2 bytes pre_defined
+ // 2 bytes reserved
+ samplerate: view.getUint16(24) + view.getUint16(26) / 65536
+ };
+
+ // if there are more bytes to process, assume this is an ISO/IEC
+ // 14496-14 MP4AudioSampleEntry and parse the ESDBox
+ if (data.byteLength > 28) {
+ result.streamDescriptor = inspectMp4(data.subarray(28))[0];
+ }
+ return result;
+ },
+ moof: function moof(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ moov: function moov(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvex: function mvex(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvhd: function mvhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+
+ // convert fixed-point, base 16 back to a number
+ result.rate = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ i += 2 * 4;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ i += 6 * 4;
+ result.nextTrackId = view.getUint32(i);
+ return result;
+ },
+ pdin: function pdin(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ rate: view.getUint32(4),
+ initialDelay: view.getUint32(8)
+ };
+ },
+ sdtp: function sdtp(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ i;
+
+ for (i = 4; i < data.byteLength; i++) {
+ result.samples.push({
+ dependsOn: (data[i] & 0x30) >> 4,
+ isDependedOn: (data[i] & 0x0c) >> 2,
+ hasRedundancy: data[i] & 0x03
+ });
+ }
+ return result;
+ },
+ sidx: function sidx(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ references: [],
+ referenceId: view.getUint32(4),
+ timescale: view.getUint32(8),
+ earliestPresentationTime: view.getUint32(12),
+ firstOffset: view.getUint32(16)
+ },
+ referenceCount = view.getUint16(22),
+ i;
+
+ for (i = 24; referenceCount; i += 12, referenceCount--) {
+ result.references.push({
+ referenceType: (data[i] & 0x80) >>> 7,
+ referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+ subsegmentDuration: view.getUint32(i + 4),
+ startsWithSap: !!(data[i + 8] & 0x80),
+ sapType: (data[i + 8] & 0x70) >>> 4,
+ sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+ });
+ }
+
+ return result;
+ },
+ smhd: function smhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ balance: data[4] + data[5] / 256
+ };
+ },
+ stbl: function stbl(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ stco: function stco(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ chunkOffsets: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+ for (i = 8; entryCount; i += 4, entryCount--) {
+ result.chunkOffsets.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stsc: function stsc(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ entryCount = view.getUint32(4),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleToChunks: []
+ },
+ i;
+ for (i = 8; entryCount; i += 12, entryCount--) {
+ result.sampleToChunks.push({
+ firstChunk: view.getUint32(i),
+ samplesPerChunk: view.getUint32(i + 4),
+ sampleDescriptionIndex: view.getUint32(i + 8)
+ });
+ }
+ return result;
+ },
+ stsd: function stsd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleDescriptions: inspectMp4(data.subarray(8))
+ };
+ },
+ stsz: function stsz(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleSize: view.getUint32(4),
+ entries: []
+ },
+ i;
+ for (i = 12; i < data.byteLength; i += 4) {
+ result.entries.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stts: function stts(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ timeToSamples: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+
+ for (i = 8; entryCount; i += 8, entryCount--) {
+ result.timeToSamples.push({
+ sampleCount: view.getUint32(i),
+ sampleDelta: view.getUint32(i + 4)
+ });
+ }
+ return result;
+ },
+ styp: function styp(data) {
+ return parse$$1.ftyp(data);
+ },
+ tfdt: function tfdt(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ baseMediaDecodeTime: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ if (result.version === 1) {
+ result.baseMediaDecodeTime *= Math.pow(2, 32);
+ result.baseMediaDecodeTime += data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11];
+ }
+ return result;
+ },
+ tfhd: function tfhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4)
+ },
+ baseDataOffsetPresent = result.flags[2] & 0x01,
+ sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+ defaultSampleDurationPresent = result.flags[2] & 0x08,
+ defaultSampleSizePresent = result.flags[2] & 0x10,
+ defaultSampleFlagsPresent = result.flags[2] & 0x20,
+ durationIsEmpty = result.flags[0] & 0x010000,
+ defaultBaseIsMoof = result.flags[0] & 0x020000,
+ i;
+
+ i = 8;
+ if (baseDataOffsetPresent) {
+ i += 4; // truncate top 4 bytes
+ // FIXME: should we read the full 64 bits?
+ result.baseDataOffset = view.getUint32(12);
+ i += 4;
+ }
+ if (sampleDescriptionIndexPresent) {
+ result.sampleDescriptionIndex = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleDurationPresent) {
+ result.defaultSampleDuration = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleSizePresent) {
+ result.defaultSampleSize = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleFlagsPresent) {
+ result.defaultSampleFlags = view.getUint32(i);
+ }
+ if (durationIsEmpty) {
+ result.durationIsEmpty = true;
+ }
+ if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+ result.baseDataOffsetIsMoof = true;
+ }
+ return result;
+ },
+ tkhd: function tkhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ i += 2 * 4;
+ result.layer = view.getUint16(i);
+ i += 2;
+ result.alternateGroup = view.getUint16(i);
+ i += 2;
+ // convert fixed-point, base 16 back to a number
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ result.width = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.height = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ return result;
+ },
+ traf: function traf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trak: function trak(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trex: function trex(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4),
+ defaultSampleDescriptionIndex: view.getUint32(8),
+ defaultSampleDuration: view.getUint32(12),
+ defaultSampleSize: view.getUint32(16),
+ sampleDependsOn: data[20] & 0x03,
+ sampleIsDependedOn: (data[21] & 0xc0) >> 6,
+ sampleHasRedundancy: (data[21] & 0x30) >> 4,
+ samplePaddingValue: (data[21] & 0x0e) >> 1,
+ sampleIsDifferenceSample: !!(data[21] & 0x01),
+ sampleDegradationPriority: view.getUint16(22)
+ };
+ },
+ trun: function trun(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+
+
+ // Flag interpretation
+ dataOffsetPresent = result.flags[2] & 0x01,
+
+
+ // compare with 2nd byte of 0x1
+ firstSampleFlagsPresent = result.flags[2] & 0x04,
+
+
+ // compare with 2nd byte of 0x4
+ sampleDurationPresent = result.flags[1] & 0x01,
+
+
+ // compare with 2nd byte of 0x100
+ sampleSizePresent = result.flags[1] & 0x02,
+
+
+ // compare with 2nd byte of 0x200
+ sampleFlagsPresent = result.flags[1] & 0x04,
+
+
+ // compare with 2nd byte of 0x400
+ sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+
+
+ // compare with 2nd byte of 0x800
+ sampleCount = view.getUint32(4),
+ offset = 8,
+ sample;
+
+ if (dataOffsetPresent) {
+ // 32 bit signed integer
+ result.dataOffset = view.getInt32(offset);
+ offset += 4;
+ }
+
+ // Overrides the flags for the first sample only. The order of
+ // optional values will be: duration, size, compositionTimeOffset
+ if (firstSampleFlagsPresent && sampleCount) {
+ sample = {
+ flags: parseSampleFlags(data.subarray(offset, offset + 4))
+ };
+ offset += 4;
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ sampleCount--;
+ }
+
+ while (sampleCount--) {
+ sample = {};
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleFlagsPresent) {
+ sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ }
+ return result;
+ },
+ 'url ': function url(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ },
+ vmhd: function vmhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ graphicsmode: view.getUint16(4),
+ opcolor: new Uint16Array([view.getUint16(6), view.getUint16(8), view.getUint16(10)])
+ };
+ }
+ };
+
+ /**
+ * Return a javascript array of box objects parsed from an ISO base
+ * media file.
+ * @param data {Uint8Array} the binary data of the media to be inspected
+ * @return {array} a javascript array of potentially nested box objects
+ */
+ inspectMp4 = function inspectMp4(data) {
+ var i = 0,
+ result = [],
+ view,
+ size,
+ type,
+ end,
+ box;
+
+ // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API
+ var ab = new ArrayBuffer(data.length);
+ var v = new Uint8Array(ab);
+ for (var z = 0; z < data.length; ++z) {
+ v[z] = data[z];
+ }
+ view = new DataView(ab);
+
+ while (i < data.byteLength) {
+ // parse box data
+ size = view.getUint32(i);
+ type = parseType$1(data.subarray(i + 4, i + 8));
+ end = size > 1 ? i + size : data.byteLength;
+
+ // parse type-specific data
+ box = (parse$$1[type] || function (data) {
+ return {
+ data: data
+ };
+ })(data.subarray(i + 8, end));
+ box.size = size;
+ box.type = type;
+
+ // store this box and move to the next
+ result.push(box);
+ i = end;
+ }
+ return result;
+ };
+
+ /**
+ * Returns a textual representation of the javascript represtentation
+ * of an MP4 file. You can use it as an alternative to
+ * JSON.stringify() to compare inspected MP4s.
+ * @param inspectedMp4 {array} the parsed array of boxes in an MP4
+ * file
+ * @param depth {number} (optional) the number of ancestor boxes of
+ * the elements of inspectedMp4. Assumed to be zero if unspecified.
+ * @return {string} a text representation of the parsed MP4
+ */
+ _textifyMp = function textifyMp4(inspectedMp4, depth) {
+ var indent;
+ depth = depth || 0;
+ indent = new Array(depth * 2 + 1).join(' ');
+
+ // iterate over all the boxes
+ return inspectedMp4.map(function (box, index) {
+
+ // list the box type first at the current indentation level
+ return indent + box.type + '\n' +
+
+ // the type is already included and handle child boxes separately
+ Object.keys(box).filter(function (key) {
+ return key !== 'type' && key !== 'boxes';
+
+ // output all the box properties
+ }).map(function (key) {
+ var prefix = indent + ' ' + key + ': ',
+ value = box[key];
+
+ // print out raw bytes as hexademical
+ if (value instanceof Uint8Array || value instanceof Uint32Array) {
+ var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)).map(function (byte) {
+ return ' ' + ('00' + byte.toString(16)).slice(-2);
+ }).join('').match(/.{1,24}/g);
+ if (!bytes) {
+ return prefix + '<>';
+ }
+ if (bytes.length === 1) {
+ return prefix + '<' + bytes.join('').slice(1) + '>';
+ }
+ return prefix + '<\n' + bytes.map(function (line) {
+ return indent + ' ' + line;
+ }).join('\n') + '\n' + indent + ' >';
+ }
+
+ // stringify generic objects
+ return prefix + JSON.stringify(value, null, 2).split('\n').map(function (line, index) {
+ if (index === 0) {
+ return line;
+ }
+ return indent + ' ' + line;
+ }).join('\n');
+ }).join('\n') + (
+
+ // recursively textify the child boxes
+ box.boxes ? '\n' + _textifyMp(box.boxes, depth + 1) : '');
+ }).join('\n');
+ };
+
+ var mp4Inspector = {
+ inspect: inspectMp4,
+ textify: _textifyMp,
+ parseTfdt: parse$$1.tfdt,
+ parseHdlr: parse$$1.hdlr,
+ parseTfhd: parse$$1.tfhd,
+ parseTrun: parse$$1.trun
+ };
+
+ var discardEmulationPreventionBytes$1 = captionPacketParser.discardEmulationPreventionBytes;
+ var CaptionStream$1 = captionStream.CaptionStream;
+
+ /**
+ * Maps an offset in the mdat to a sample based on the the size of the samples.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Number} offset - The offset into the mdat
+ * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+ * @return {?Object} The matching sample, or null if no match was found.
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var mapToSample = function mapToSample(offset, samples) {
+ var approximateOffset = offset;
+
+ for (var i = 0; i < samples.length; i++) {
+ var sample = samples[i];
+
+ if (approximateOffset < sample.size) {
+ return sample;
+ }
+
+ approximateOffset -= sample.size;
+ }
+
+ return null;
+ };
+
+ /**
+ * Finds SEI nal units contained in a Media Data Box.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Uint8Array} avcStream - The bytes of the mdat
+ * @param {Object[]} samples - The samples parsed out by `parseSamples`
+ * @param {Number} trackId - The trackId of this video track
+ * @return {Object[]} seiNals - the parsed SEI NALUs found.
+ * The contents of the seiNal should match what is expected by
+ * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+ *
+ * @see ISO-BMFF-12/2015, Section 8.1.1
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ **/
+ var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ seiNal,
+ i,
+ length,
+ lastMatchedSample;
+
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // Bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x06:
+ var data = avcStream.subarray(i + 1, i + 1 + length);
+ var matchingSample = mapToSample(i, samples);
+
+ seiNal = {
+ nalUnitType: 'sei_rbsp',
+ size: length,
+ data: data,
+ escapedRBSP: discardEmulationPreventionBytes$1(data),
+ trackId: trackId
+ };
+
+ if (matchingSample) {
+ seiNal.pts = matchingSample.pts;
+ seiNal.dts = matchingSample.dts;
+ lastMatchedSample = matchingSample;
+ } else {
+ // If a matching sample cannot be found, use the last
+ // sample's values as they should be as close as possible
+ seiNal.pts = lastMatchedSample.pts;
+ seiNal.dts = lastMatchedSample.dts;
+ }
+
+ result.push(seiNal);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ /**
+ * Parses sample information out of Track Run Boxes and calculates
+ * the absolute presentation and decode timestamps of each sample.
+ *
+ * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+ * @param {Number} baseMediaDecodeTime - base media decode time from tfdt
+ @see ISO-BMFF-12/2015, Section 8.8.12
+ * @param {Object} tfhd - The parsed Track Fragment Header
+ * @see inspect.parseTfhd
+ * @return {Object[]} the parsed samples
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
+ var currentDts = baseMediaDecodeTime;
+ var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+ var defaultSampleSize = tfhd.defaultSampleSize || 0;
+ var trackId = tfhd.trackId;
+ var allSamples = [];
+
+ truns.forEach(function (trun) {
+ // Note: We currently do not parse the sample table as well
+ // as the trun. It's possible some sources will require this.
+ // moov > trak > mdia > minf > stbl
+ var trackRun = mp4Inspector.parseTrun(trun);
+ var samples = trackRun.samples;
+
+ samples.forEach(function (sample) {
+ if (sample.duration === undefined) {
+ sample.duration = defaultSampleDuration;
+ }
+ if (sample.size === undefined) {
+ sample.size = defaultSampleSize;
+ }
+ sample.trackId = trackId;
+ sample.dts = currentDts;
+ if (sample.compositionTimeOffset === undefined) {
+ sample.compositionTimeOffset = 0;
+ }
+ sample.pts = currentDts + sample.compositionTimeOffset;
+
+ currentDts += sample.duration;
+ });
+
+ allSamples = allSamples.concat(samples);
+ });
+
+ return allSamples;
+ };
+
+ /**
+ * Parses out caption nals from an FMP4 segment's video tracks.
+ *
+ * @param {Uint8Array} segment - The bytes of a single segment
+ * @param {Number} videoTrackId - The trackId of a video track in the segment
+ * @return {Object.<Number, Object[]>} A mapping of video trackId to
+ * a list of seiNals found in that track
+ **/
+ var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
+ // To get the samples
+ var trafs = probe$$1.findBox(segment, ['moof', 'traf']);
+ // To get SEI NAL units
+ var mdats = probe$$1.findBox(segment, ['mdat']);
+ var captionNals = {};
+ var mdatTrafPairs = [];
+
+ // Pair up each traf with a mdat as moofs and mdats are in pairs
+ mdats.forEach(function (mdat, index) {
+ var matchingTraf = trafs[index];
+ mdatTrafPairs.push({
+ mdat: mdat,
+ traf: matchingTraf
+ });
+ });
+
+ mdatTrafPairs.forEach(function (pair) {
+ var mdat = pair.mdat;
+ var traf = pair.traf;
+ var tfhd = probe$$1.findBox(traf, ['tfhd']);
+ // Exactly 1 tfhd per traf
+ var headerInfo = mp4Inspector.parseTfhd(tfhd[0]);
+ var trackId = headerInfo.trackId;
+ var tfdt = probe$$1.findBox(traf, ['tfdt']);
+ // Either 0 or 1 tfdt per traf
+ var baseMediaDecodeTime = tfdt.length > 0 ? mp4Inspector.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
+ var truns = probe$$1.findBox(traf, ['trun']);
+ var samples;
+ var seiNals;
+
+ // Only parse video data for the chosen video track
+ if (videoTrackId === trackId && truns.length > 0) {
+ samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+
+ seiNals = findSeiNals(mdat, samples, trackId);
+
+ if (!captionNals[trackId]) {
+ captionNals[trackId] = [];
+ }
+
+ captionNals[trackId] = captionNals[trackId].concat(seiNals);
+ }
+ });
+
+ return captionNals;
+ };
+
+ /**
+ * Parses out inband captions from an MP4 container and returns
+ * caption objects that can be used by WebVTT and the TextTrack API.
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+ * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number} trackId - The id of the video track to parse
+ * @param {Number} timescale - The timescale for the video track from the init segment
+ *
+ * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+ * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+ * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+ * @return {String} parsedCaptions[].text - The visible content of the caption
+ **/
+ var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
+ var seiNals;
+
+ if (!trackId) {
+ return null;
+ }
+
+ seiNals = parseCaptionNals(segment, trackId);
+
+ return {
+ seiNals: seiNals[trackId],
+ timescale: timescale
+ };
+ };
+
+ /**
+ * Converts SEI NALUs into captions that can be used by video.js
+ **/
+ var CaptionParser$$1 = function CaptionParser$$1() {
+ var isInitialized = false;
+ var captionStream$$1;
+
+ // Stores segments seen before trackId and timescale are set
+ var segmentCache;
+ // Stores video track ID of the track being parsed
+ var trackId;
+ // Stores the timescale of the track being parsed
+ var timescale;
+ // Stores captions parsed so far
+ var parsedCaptions;
+
+ /**
+ * A method to indicate whether a CaptionParser has been initalized
+ * @returns {Boolean}
+ **/
+ this.isInitialized = function () {
+ return isInitialized;
+ };
+
+ /**
+ * Initializes the underlying CaptionStream, SEI NAL parsing
+ * and management, and caption collection
+ **/
+ this.init = function () {
+ captionStream$$1 = new CaptionStream$1();
+ isInitialized = true;
+
+ // Collect dispatched captions
+ captionStream$$1.on('data', function (event) {
+ // Convert to seconds in the source's timescale
+ event.startTime = event.startPts / timescale;
+ event.endTime = event.endPts / timescale;
+
+ parsedCaptions.captions.push(event);
+ parsedCaptions.captionStreams[event.stream] = true;
+ });
+ };
+
+ /**
+ * Determines if a new video track will be selected
+ * or if the timescale changed
+ * @return {Boolean}
+ **/
+ this.isNewInit = function (videoTrackIds, timescales) {
+ if (videoTrackIds && videoTrackIds.length === 0 || timescales && (typeof timescales === 'undefined' ? 'undefined' : _typeof(timescales)) === 'object' && Object.keys(timescales).length === 0) {
+ return false;
+ }
+
+ return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+ };
+
+ /**
+ * Parses out SEI captions and interacts with underlying
+ * CaptionStream to return dispatched captions
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+ * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+ * @see parseEmbeddedCaptions
+ * @see m2ts/caption-stream.js
+ **/
+ this.parse = function (segment, videoTrackIds, timescales) {
+ var parsedData;
+
+ if (!this.isInitialized()) {
+ return null;
+
+ // This is not likely to be a video segment
+ } else if (!videoTrackIds || !timescales) {
+ return null;
+ } else if (this.isNewInit(videoTrackIds, timescales)) {
+ // Use the first video track only as there is no
+ // mechanism to switch to other video tracks
+ trackId = videoTrackIds[0];
+ timescale = timescales[trackId];
+
+ // If an init segment has not been seen yet, hold onto segment
+ // data until we have one
+ } else if (!trackId || !timescale) {
+ segmentCache.push(segment);
+ return null;
+ }
+
+ // Now that a timescale and trackId is set, parse cached segments
+ while (segmentCache.length > 0) {
+ var cachedSegment = segmentCache.shift();
+
+ this.parse(cachedSegment, videoTrackIds, timescales);
+ }
+
+ parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+
+ if (parsedData === null || !parsedData.seiNals) {
+ return null;
+ }
+
+ this.pushNals(parsedData.seiNals);
+ // Force the parsed captions to be dispatched
+ this.flushStream();
+
+ return parsedCaptions;
+ };
+
+ /**
+ * Pushes SEI NALUs onto CaptionStream
+ * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+ * Assumes that `parseCaptionNals` has been called first
+ * @see m2ts/caption-stream.js
+ **/
+ this.pushNals = function (nals) {
+ if (!this.isInitialized() || !nals || nals.length === 0) {
+ return null;
+ }
+
+ nals.forEach(function (nal) {
+ captionStream$$1.push(nal);
+ });
+ };
+
+ /**
+ * Flushes underlying CaptionStream to dispatch processed, displayable captions
+ * @see m2ts/caption-stream.js
+ **/
+ this.flushStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.flush();
+ };
+
+ /**
+ * Reset caption buckets for new data
+ **/
+ this.clearParsedCaptions = function () {
+ parsedCaptions.captions = [];
+ parsedCaptions.captionStreams = {};
+ };
+
+ /**
+ * Resets underlying CaptionStream
+ * @see m2ts/caption-stream.js
+ **/
+ this.resetCaptionStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.reset();
+ };
+
+ /**
+ * Convenience method to clear all captions flushed from the
+ * CaptionStream and still being parsed
+ * @see m2ts/caption-stream.js
+ **/
+ this.clearAllCaptions = function () {
+ this.clearParsedCaptions();
+ this.resetCaptionStream();
+ };
+
+ /**
+ * Reset caption parser
+ **/
+ this.reset = function () {
+ segmentCache = [];
+ trackId = null;
+ timescale = null;
+
+ if (!parsedCaptions) {
+ parsedCaptions = {
+ captions: [],
+ // CC1, CC2, CC3, CC4
+ captionStreams: {}
+ };
+ } else {
+ this.clearParsedCaptions();
+ }
+
+ this.resetCaptionStream();
+ };
+
+ this.reset();
+ };
+
+ var captionParser = CaptionParser$$1;
+
+ var mp4$$1 = {
+ generator: mp4Generator,
+ probe: probe$$1,
+ Transmuxer: transmuxer.Transmuxer,
+ AudioSegmentStream: transmuxer.AudioSegmentStream,
+ VideoSegmentStream: transmuxer.VideoSegmentStream,
+ CaptionParser: captionParser
+ };
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ /**
+ * @file transmuxer-worker.js
+ */
+
+ /**
+ * Re-emits transmuxer events by converting them into messages to the
+ * world outside the worker.
+ *
+ * @param {Object} transmuxer the transmuxer to wire events on
+ * @private
+ */
+ var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {
+ transmuxer.on('data', function (segment) {
+ // transfer ownership of the underlying ArrayBuffer
+ // instead of doing a copy to save memory
+ // ArrayBuffers are transferable but generic TypedArrays are not
+ // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
+ var initArray = segment.initSegment;
+
+ segment.initSegment = {
+ data: initArray.buffer,
+ byteOffset: initArray.byteOffset,
+ byteLength: initArray.byteLength
+ };
+
+ var typedArray = segment.data;
+
+ segment.data = typedArray.buffer;
+ self.postMessage({
+ action: 'data',
+ segment: segment,
+ byteOffset: typedArray.byteOffset,
+ byteLength: typedArray.byteLength
+ }, [segment.data]);
+ });
+
+ if (transmuxer.captionStream) {
+ transmuxer.captionStream.on('data', function (caption) {
+ self.postMessage({
+ action: 'caption',
+ data: caption
+ });
+ });
+ }
+
+ transmuxer.on('done', function (data) {
+ self.postMessage({ action: 'done' });
+ });
+
+ transmuxer.on('gopInfo', function (gopInfo) {
+ self.postMessage({
+ action: 'gopInfo',
+ gopInfo: gopInfo
+ });
+ });
+ };
+
+ /**
+ * All incoming messages route through this hash. If no function exists
+ * to handle an incoming message, then we ignore the message.
+ *
+ * @class MessageHandlers
+ * @param {Object} options the options to initialize with
+ */
+
+ var MessageHandlers = function () {
+ function MessageHandlers(self, options) {
+ classCallCheck$$1(this, MessageHandlers);
+
+ this.options = options || {};
+ this.self = self;
+ this.init();
+ }
+
+ /**
+ * initialize our web worker and wire all the events.
+ */
+
+ createClass$$1(MessageHandlers, [{
+ key: 'init',
+ value: function init() {
+ if (this.transmuxer) {
+ this.transmuxer.dispose();
+ }
+ this.transmuxer = new mp4$$1.Transmuxer(this.options);
+ wireTransmuxerEvents(this.self, this.transmuxer);
+ }
+
+ /**
+ * Adds data (a ts segment) to the start of the transmuxer pipeline for
+ * processing.
+ *
+ * @param {ArrayBuffer} data data to push into the muxer
+ */
+
+ }, {
+ key: 'push',
+ value: function push(data) {
+ // Cast array buffer to correct type for transmuxer
+ var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+
+ this.transmuxer.push(segment);
+ }
+
+ /**
+ * Recreate the transmuxer so that the next segment added via `push`
+ * start with a fresh transmuxer.
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.init();
+ }
+
+ /**
+ * Set the value that will be used as the `baseMediaDecodeTime` time for the
+ * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
+ * set relative to the first based on the PTS values.
+ *
+ * @param {Object} data used to set the timestamp offset in the muxer
+ */
+
+ }, {
+ key: 'setTimestampOffset',
+ value: function setTimestampOffset(data) {
+ var timestampOffset = data.timestampOffset || 0;
+
+ this.transmuxer.setBaseMediaDecodeTime(Math.round(timestampOffset * 90000));
+ }
+ }, {
+ key: 'setAudioAppendStart',
+ value: function setAudioAppendStart(data) {
+ this.transmuxer.setAudioAppendStart(Math.ceil(data.appendStart * 90000));
+ }
+
+ /**
+ * Forces the pipeline to finish processing the last segment and emit it's
+ * results.
+ *
+ * @param {Object} data event data, not really used
+ */
+
+ }, {
+ key: 'flush',
+ value: function flush(data) {
+ this.transmuxer.flush();
+ }
+ }, {
+ key: 'resetCaptions',
+ value: function resetCaptions() {
+ this.transmuxer.resetCaptions();
+ }
+ }, {
+ key: 'alignGopsWith',
+ value: function alignGopsWith(data) {
+ this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
+ }
+ }]);
+ return MessageHandlers;
+ }();
+
+ /**
+ * Our web wroker interface so that things can talk to mux.js
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self the scope for the web worker
+ */
+
+ var TransmuxerWorker = function TransmuxerWorker(self) {
+ self.onmessage = function (event) {
+ if (event.data.action === 'init' && event.data.options) {
+ this.messageHandlers = new MessageHandlers(self, event.data.options);
+ return;
+ }
+
+ if (!this.messageHandlers) {
+ this.messageHandlers = new MessageHandlers(self);
+ }
+
+ if (event.data && event.data.action && event.data.action !== 'init') {
+ if (this.messageHandlers[event.data.action]) {
+ this.messageHandlers[event.data.action](event.data);
+ }
+ }
+ };
+ };
+
+ var transmuxerWorker = new TransmuxerWorker(self);
+
+ return transmuxerWorker;
+ }();
+ });
+
+ /**
+ * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
+ * codec strings, or translating codec strings into objects that can be examined.
+ */
+
+ // Default codec parameters if none were provided for video and/or audio
+ var defaultCodecs = {
+ videoCodec: 'avc1',
+ videoObjectTypeIndicator: '.4d400d',
+ // AAC-LC
+ audioProfile: '2'
+ };
+
+ /**
+ * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
+ * `avc1.<hhhhhh>`
+ *
+ * @param {Array} codecs an array of codec strings to fix
+ * @return {Array} the translated codec array
+ * @private
+ */
+ var translateLegacyCodecs = function translateLegacyCodecs(codecs) {
+ return codecs.map(function (codec) {
+ return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
+ var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
+ var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
+
+ return 'avc1.' + profileHex + '00' + avcLevelHex;
+ });
+ });
+ };
+
+ /**
+ * Parses a codec string to retrieve the number of codecs specified,
+ * the video codec and object type indicator, and the audio profile.
+ */
+
+ var parseCodecs = function parseCodecs() {
+ var codecs = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var result = {
+ codecCount: 0
+ };
+ var parsed = void 0;
+
+ result.codecCount = codecs.split(',').length;
+ result.codecCount = result.codecCount || 2;
+
+ // parse the video codec
+ parsed = /(^|\s|,)+(avc[13])([^ ,]*)/i.exec(codecs);
+ if (parsed) {
+ result.videoCodec = parsed[2];
+ result.videoObjectTypeIndicator = parsed[3];
+ }
+
+ // parse the last field of the audio codec
+ result.audioProfile = /(^|\s|,)+mp4a.[0-9A-Fa-f]+\.([0-9A-Fa-f]+)/i.exec(codecs);
+ result.audioProfile = result.audioProfile && result.audioProfile[2];
+
+ return result;
+ };
+
+ /**
+ * Replace codecs in the codec string with the old apple-style `avc1.<dd>.<dd>` to the
+ * standard `avc1.<hhhhhh>`.
+ *
+ * @param codecString {String} the codec string
+ * @return {String} the codec string with old apple-style codecs replaced
+ *
+ * @private
+ */
+ var mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {
+ return codecString.replace(/avc1\.(\d+)\.(\d+)/i, function (match) {
+ return translateLegacyCodecs([match])[0];
+ });
+ };
+
+ /**
+ * Build a media mime-type string from a set of parameters
+ * @param {String} type either 'audio' or 'video'
+ * @param {String} container either 'mp2t' or 'mp4'
+ * @param {Array} codecs an array of codec strings to add
+ * @return {String} a valid media mime-type
+ */
+ var makeMimeTypeString = function makeMimeTypeString(type, container, codecs) {
+ // The codecs array is filtered so that falsey values are
+ // dropped and don't cause Array#join to create spurious
+ // commas
+ return type + '/' + container + '; codecs="' + codecs.filter(function (c) {
+ return !!c;
+ }).join(', ') + '"';
+ };
+
+ /**
+ * Returns the type container based on information in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {String} a valid media container type
+ */
+ var getContainerType = function getContainerType(media) {
+ // An initialization segment means the media playlist is an iframe
+ // playlist or is using the mp4 container. We don't currently
+ // support iframe playlists, so assume this is signalling mp4
+ // fragments.
+ if (media.segments && media.segments.length && media.segments[0].map) {
+ return 'mp4';
+ }
+ return 'mp2t';
+ };
+
+ /**
+ * Returns a set of codec strings parsed from the playlist or the default
+ * codec strings if no codecs were specified in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {Object} an object with the video and audio codecs
+ */
+ var getCodecs = function getCodecs(media) {
+ // if the codecs were explicitly specified, use them instead of the
+ // defaults
+ var mediaAttributes = media.attributes || {};
+
+ if (mediaAttributes.CODECS) {
+ return parseCodecs(mediaAttributes.CODECS);
+ }
+ return defaultCodecs;
+ };
+
+ var audioProfileFromDefault = function audioProfileFromDefault(master, audioGroupId) {
+ if (!master.mediaGroups.AUDIO || !audioGroupId) {
+ return null;
+ }
+
+ var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
+
+ if (!audioGroup) {
+ return null;
+ }
+
+ for (var name in audioGroup) {
+ var audioType = audioGroup[name];
+
+ if (audioType.default && audioType.playlists) {
+ // codec should be the same for all playlists within the audio type
+ return parseCodecs(audioType.playlists[0].attributes.CODECS).audioProfile;
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Calculates the MIME type strings for a working configuration of
+ * SourceBuffers to play variant streams in a master playlist. If
+ * there is no possible working configuration, an empty array will be
+ * returned.
+ *
+ * @param master {Object} the m3u8 object for the master playlist
+ * @param media {Object} the m3u8 object for the variant playlist
+ * @return {Array} the MIME type strings. If the array has more than
+ * one entry, the first element should be applied to the video
+ * SourceBuffer and the second to the audio SourceBuffer.
+ *
+ * @private
+ */
+ var mimeTypesForPlaylist = function mimeTypesForPlaylist(master, media) {
+ var containerType = getContainerType(media);
+ var codecInfo = getCodecs(media);
+ var mediaAttributes = media.attributes || {};
+ // Default condition for a traditional HLS (no demuxed audio/video)
+ var isMuxed = true;
+ var isMaat = false;
+
+ if (!media) {
+ // Not enough information
+ return [];
+ }
+
+ if (master.mediaGroups.AUDIO && mediaAttributes.AUDIO) {
+ var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+
+ // Handle the case where we are in a multiple-audio track scenario
+ if (audioGroup) {
+ isMaat = true;
+ // Start with the everything demuxed then...
+ isMuxed = false;
+ // ...check to see if any audio group tracks are muxed (ie. lacking a uri)
+ for (var groupId in audioGroup) {
+ // either a uri is present (if the case of HLS and an external playlist), or
+ // playlists is present (in the case of DASH where we don't have external audio
+ // playlists)
+ if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+ isMuxed = true;
+ break;
+ }
+ }
+ }
+ }
+
+ // HLS with multiple-audio tracks must always get an audio codec.
+ // Put another way, there is no way to have a video-only multiple-audio HLS!
+ if (isMaat && !codecInfo.audioProfile) {
+ if (!isMuxed) {
+ // It is possible for codecs to be specified on the audio media group playlist but
+ // not on the rendition playlist. This is mostly the case for DASH, where audio and
+ // video are always separate (and separately specified).
+ codecInfo.audioProfile = audioProfileFromDefault(master, mediaAttributes.AUDIO);
+ }
+
+ if (!codecInfo.audioProfile) {
+ videojs$1.log.warn('Multiple audio tracks present but no audio codec string is specified. ' + 'Attempting to use the default audio codec (mp4a.40.2)');
+ codecInfo.audioProfile = defaultCodecs.audioProfile;
+ }
+ }
+
+ // Generate the final codec strings from the codec object generated above
+ var codecStrings = {};
+
+ if (codecInfo.videoCodec) {
+ codecStrings.video = '' + codecInfo.videoCodec + codecInfo.videoObjectTypeIndicator;
+ }
+
+ if (codecInfo.audioProfile) {
+ codecStrings.audio = 'mp4a.40.' + codecInfo.audioProfile;
+ }
+
+ // Finally, make and return an array with proper mime-types depending on
+ // the configuration
+ var justAudio = makeMimeTypeString('audio', containerType, [codecStrings.audio]);
+ var justVideo = makeMimeTypeString('video', containerType, [codecStrings.video]);
+ var bothVideoAudio = makeMimeTypeString('video', containerType, [codecStrings.video, codecStrings.audio]);
+
+ if (isMaat) {
+ if (!isMuxed && codecStrings.video) {
+ return [justVideo, justAudio];
+ }
+
+ if (!isMuxed && !codecStrings.video) {
+ // There is no muxed content and no video codec string, so this is an audio only
+ // stream with alternate audio.
+ return [justAudio, justAudio];
+ }
+
+ // There exists the possiblity that this will return a `video/container`
+ // mime-type for the first entry in the array even when there is only audio.
+ // This doesn't appear to be a problem and simplifies the code.
+ return [bothVideoAudio, justAudio];
+ }
+
+ // If there is no video codec at all, always just return a single
+ // audio/<container> mime-type
+ if (!codecStrings.video) {
+ return [justAudio];
+ }
+
+ // When not using separate audio media groups, audio and video is
+ // *always* muxed
+ return [bothVideoAudio];
+ };
+
+ /**
+ * Parse a content type header into a type and parameters
+ * object
+ *
+ * @param {String} type the content type header
+ * @return {Object} the parsed content-type
+ * @private
+ */
+ var parseContentType = function parseContentType(type) {
+ var object = { type: '', parameters: {} };
+ var parameters = type.trim().split(';');
+
+ // first parameter should always be content-type
+ object.type = parameters.shift().trim();
+ parameters.forEach(function (parameter) {
+ var pair = parameter.trim().split('=');
+
+ if (pair.length > 1) {
+ var name = pair[0].replace(/"/g, '').trim();
+ var value = pair[1].replace(/"/g, '').trim();
+
+ object.parameters[name] = value;
+ }
+ });
+
+ return object;
+ };
+
+ /**
+ * Check if a codec string refers to an audio codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is an audio codec
+ * @private
+ */
+ var isAudioCodec = function isAudioCodec(codec) {
+ return (/mp4a\.\d+.\d+/i.test(codec)
+ );
+ };
+
+ /**
+ * Check if a codec string refers to a video codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is a video codec
+ * @private
+ */
+ var isVideoCodec = function isVideoCodec(codec) {
+ return (/avc1\.[\da-f]+/i.test(codec)
+ );
+ };
+
+ /**
+ * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
+ * front of current time.
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Number} currentTime
+ * The current time
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ * @return {Array}
+ * List of gops considered safe to append over
+ */
+ var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {
+ if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
+ return [];
+ }
+
+ // pts value for current time + 3 seconds to give a bit more wiggle room
+ var currentTimePts = Math.ceil((currentTime - mapping + 3) * 90000);
+
+ var i = void 0;
+
+ for (i = 0; i < buffer.length; i++) {
+ if (buffer[i].pts > currentTimePts) {
+ break;
+ }
+ }
+
+ return buffer.slice(i);
+ };
+
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Array} gops
+ * List of new gop information
+ * @param {boolean} replace
+ * If true, replace the buffer with the new gop information. If false, append the
+ * new gop information to the buffer in the right location of time.
+ * @return {Array}
+ * Updated list of gop information
+ */
+ var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {
+ if (!gops.length) {
+ return buffer;
+ }
+
+ if (replace) {
+ // If we are in safe append mode, then completely overwrite the gop buffer
+ // with the most recent appeneded data. This will make sure that when appending
+ // future segments, we only try to align with gops that are both ahead of current
+ // time and in the last segment appended.
+ return gops.slice();
+ }
+
+ var start = gops[0].pts;
+
+ var i = 0;
+
+ for (i; i < buffer.length; i++) {
+ if (buffer[i].pts >= start) {
+ break;
+ }
+ }
+
+ return buffer.slice(0, i).concat(gops);
+ };
+
+ /**
+ * Removes gop information in buffer that overlaps with provided start and end
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Double} start
+ * position to start the remove at
+ * @param {Double} end
+ * position to end the remove at
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ */
+ var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {
+ var startPts = Math.ceil((start - mapping) * 90000);
+ var endPts = Math.ceil((end - mapping) * 90000);
+ var updatedBuffer = buffer.slice();
+
+ var i = buffer.length;
+
+ while (i--) {
+ if (buffer[i].pts <= endPts) {
+ break;
+ }
+ }
+
+ if (i === -1) {
+ // no removal because end of remove range is before start of buffer
+ return updatedBuffer;
+ }
+
+ var j = i + 1;
+
+ while (j--) {
+ if (buffer[j].pts <= startPts) {
+ break;
+ }
+ }
+
+ // clamp remove range start to 0 index
+ j = Math.max(j, 0);
+
+ updatedBuffer.splice(j, i - j + 1);
+
+ return updatedBuffer;
+ };
+
+ var buffered = function buffered(videoBuffer, audioBuffer, audioDisabled) {
+ var start = null;
+ var end = null;
+ var arity = 0;
+ var extents = [];
+ var ranges = [];
+
+ // neither buffer has been created yet
+ if (!videoBuffer && !audioBuffer) {
+ return videojs$1.createTimeRange();
+ }
+
+ // only one buffer is configured
+ if (!videoBuffer) {
+ return audioBuffer.buffered;
+ }
+ if (!audioBuffer) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are configured
+ if (audioDisabled) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are empty
+ if (videoBuffer.buffered.length === 0 && audioBuffer.buffered.length === 0) {
+ return videojs$1.createTimeRange();
+ }
+
+ // Handle the case where we have both buffers and create an
+ // intersection of the two
+ var videoBuffered = videoBuffer.buffered;
+ var audioBuffered = audioBuffer.buffered;
+ var count = videoBuffered.length;
+
+ // A) Gather up all start and end times
+ while (count--) {
+ extents.push({ time: videoBuffered.start(count), type: 'start' });
+ extents.push({ time: videoBuffered.end(count), type: 'end' });
+ }
+ count = audioBuffered.length;
+ while (count--) {
+ extents.push({ time: audioBuffered.start(count), type: 'start' });
+ extents.push({ time: audioBuffered.end(count), type: 'end' });
+ }
+ // B) Sort them by time
+ extents.sort(function (a, b) {
+ return a.time - b.time;
+ });
+
+ // C) Go along one by one incrementing arity for start and decrementing
+ // arity for ends
+ for (count = 0; count < extents.length; count++) {
+ if (extents[count].type === 'start') {
+ arity++;
+
+ // D) If arity is ever incremented to 2 we are entering an
+ // overlapping range
+ if (arity === 2) {
+ start = extents[count].time;
+ }
+ } else if (extents[count].type === 'end') {
+ arity--;
+
+ // E) If arity is ever decremented to 1 we leaving an
+ // overlapping range
+ if (arity === 1) {
+ end = extents[count].time;
+ }
+ }
+
+ // F) Record overlapping ranges
+ if (start !== null && end !== null) {
+ ranges.push([start, end]);
+ start = null;
+ end = null;
+ }
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+ };
+
+ /**
+ * @file virtual-source-buffer.js
+ */
+
+ // We create a wrapper around the SourceBuffer so that we can manage the
+ // state of the `updating` property manually. We have to do this because
+ // Firefox changes `updating` to false long before triggering `updateend`
+ // events and that was causing strange problems in videojs-contrib-hls
+ var makeWrappedSourceBuffer = function makeWrappedSourceBuffer(mediaSource, mimeType) {
+ var sourceBuffer = mediaSource.addSourceBuffer(mimeType);
+ var wrapper = Object.create(null);
+
+ wrapper.updating = false;
+ wrapper.realBuffer_ = sourceBuffer;
+
+ var _loop = function _loop(key) {
+ if (typeof sourceBuffer[key] === 'function') {
+ wrapper[key] = function () {
+ return sourceBuffer[key].apply(sourceBuffer, arguments);
+ };
+ } else if (typeof wrapper[key] === 'undefined') {
+ Object.defineProperty(wrapper, key, {
+ get: function get$$1() {
+ return sourceBuffer[key];
+ },
+ set: function set$$1(v) {
+ return sourceBuffer[key] = v;
+ }
+ });
+ }
+ };
+
+ for (var key in sourceBuffer) {
+ _loop(key);
+ }
+
+ return wrapper;
+ };
+
+ /**
+ * VirtualSourceBuffers exist so that we can transmux non native formats
+ * into a native format, but keep the same api as a native source buffer.
+ * It creates a transmuxer, that works in its own thread (a web worker) and
+ * that transmuxer muxes the data into a native format. VirtualSourceBuffer will
+ * then send all of that data to the naive sourcebuffer so that it is
+ * indestinguishable from a natively supported format.
+ *
+ * @param {HtmlMediaSource} mediaSource the parent mediaSource
+ * @param {Array} codecs array of codecs that we will be dealing with
+ * @class VirtualSourceBuffer
+ * @extends video.js.EventTarget
+ */
+
+ var VirtualSourceBuffer = function (_videojs$EventTarget) {
+ inherits$3(VirtualSourceBuffer, _videojs$EventTarget);
+
+ function VirtualSourceBuffer(mediaSource, codecs) {
+ classCallCheck$3(this, VirtualSourceBuffer);
+
+ var _this = possibleConstructorReturn$3(this, (VirtualSourceBuffer.__proto__ || Object.getPrototypeOf(VirtualSourceBuffer)).call(this, videojs$1.EventTarget));
+
+ _this.timestampOffset_ = 0;
+ _this.pendingBuffers_ = [];
+ _this.bufferUpdating_ = false;
+
+ _this.mediaSource_ = mediaSource;
+ _this.codecs_ = codecs;
+ _this.audioCodec_ = null;
+ _this.videoCodec_ = null;
+ _this.audioDisabled_ = false;
+ _this.appendAudioInitSegment_ = true;
+ _this.gopBuffer_ = [];
+ _this.timeMapping_ = 0;
+ _this.safeAppend_ = videojs$1.browser.IE_VERSION >= 11;
+
+ var options = {
+ remux: false,
+ alignGopsAtEnd: _this.safeAppend_
+ };
+
+ _this.codecs_.forEach(function (codec) {
+ if (isAudioCodec(codec)) {
+ _this.audioCodec_ = codec;
+ } else if (isVideoCodec(codec)) {
+ _this.videoCodec_ = codec;
+ }
+ });
+
+ // append muxed segments to their respective native buffers as
+ // soon as they are available
+ _this.transmuxer_ = new TransmuxWorker();
+ _this.transmuxer_.postMessage({ action: 'init', options: options });
+
+ _this.transmuxer_.onmessage = function (event) {
+ if (event.data.action === 'data') {
+ return _this.data_(event);
+ }
+
+ if (event.data.action === 'done') {
+ return _this.done_(event);
+ }
+
+ if (event.data.action === 'gopInfo') {
+ return _this.appendGopInfo_(event);
+ }
+ };
+
+ // this timestampOffset is a property with the side-effect of resetting
+ // baseMediaDecodeTime in the transmuxer on the setter
+ Object.defineProperty(_this, 'timestampOffset', {
+ get: function get$$1() {
+ return this.timestampOffset_;
+ },
+ set: function set$$1(val) {
+ if (typeof val === 'number' && val >= 0) {
+ this.timestampOffset_ = val;
+ this.appendAudioInitSegment_ = true;
+
+ // reset gop buffer on timestampoffset as this signals a change in timeline
+ this.gopBuffer_.length = 0;
+ this.timeMapping_ = 0;
+
+ // We have to tell the transmuxer to set the baseMediaDecodeTime to
+ // the desired timestampOffset for the next segment
+ this.transmuxer_.postMessage({
+ action: 'setTimestampOffset',
+ timestampOffset: val
+ });
+ }
+ }
+ });
+
+ // setting the append window affects both source buffers
+ Object.defineProperty(_this, 'appendWindowStart', {
+ get: function get$$1() {
+ return (this.videoBuffer_ || this.audioBuffer_).appendWindowStart;
+ },
+ set: function set$$1(start) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.appendWindowStart = start;
+ }
+ if (this.audioBuffer_) {
+ this.audioBuffer_.appendWindowStart = start;
+ }
+ }
+ });
+
+ // this buffer is "updating" if either of its native buffers are
+ Object.defineProperty(_this, 'updating', {
+ get: function get$$1() {
+ return !!(this.bufferUpdating_ || !this.audioDisabled_ && this.audioBuffer_ && this.audioBuffer_.updating || this.videoBuffer_ && this.videoBuffer_.updating);
+ }
+ });
+
+ // the buffered property is the intersection of the buffered
+ // ranges of the native source buffers
+ Object.defineProperty(_this, 'buffered', {
+ get: function get$$1() {
+ return buffered(this.videoBuffer_, this.audioBuffer_, this.audioDisabled_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * When we get a data event from the transmuxer
+ * we call this function and handle the data that
+ * was sent to us
+ *
+ * @private
+ * @param {Event} event the data event from the transmuxer
+ */
+
+ createClass$2(VirtualSourceBuffer, [{
+ key: 'data_',
+ value: function data_(event) {
+ var segment = event.data.segment;
+
+ // Cast ArrayBuffer to TypedArray
+ segment.data = new Uint8Array(segment.data, event.data.byteOffset, event.data.byteLength);
+
+ segment.initSegment = new Uint8Array(segment.initSegment.data, segment.initSegment.byteOffset, segment.initSegment.byteLength);
+
+ createTextTracksIfNecessary(this, this.mediaSource_, segment);
+
+ // Add the segments to the pendingBuffers array
+ this.pendingBuffers_.push(segment);
+ return;
+ }
+
+ /**
+ * When we get a done event from the transmuxer
+ * we call this function and we process all
+ * of the pending data that we have been saving in the
+ * data_ function
+ *
+ * @private
+ * @param {Event} event the done event from the transmuxer
+ */
+
+ }, {
+ key: 'done_',
+ value: function done_(event) {
+ // Don't process and append data if the mediaSource is closed
+ if (this.mediaSource_.readyState === 'closed') {
+ this.pendingBuffers_.length = 0;
+ return;
+ }
+
+ // All buffers should have been flushed from the muxer
+ // start processing anything we have received
+ this.processPendingSegments_();
+ return;
+ }
+
+ /**
+ * Create our internal native audio/video source buffers and add
+ * event handlers to them with the following conditions:
+ * 1. they do not already exist on the mediaSource
+ * 2. this VSB has a codec for them
+ *
+ * @private
+ */
+
+ }, {
+ key: 'createRealSourceBuffers_',
+ value: function createRealSourceBuffers_() {
+ var _this2 = this;
+
+ var types = ['audio', 'video'];
+
+ types.forEach(function (type) {
+ // Don't create a SourceBuffer of this type if we don't have a
+ // codec for it
+ if (!_this2[type + 'Codec_']) {
+ return;
+ }
+
+ // Do nothing if a SourceBuffer of this type already exists
+ if (_this2[type + 'Buffer_']) {
+ return;
+ }
+
+ var buffer = null;
+
+ // If the mediasource already has a SourceBuffer for the codec
+ // use that
+ if (_this2.mediaSource_[type + 'Buffer_']) {
+ buffer = _this2.mediaSource_[type + 'Buffer_'];
+ // In multiple audio track cases, the audio source buffer is disabled
+ // on the main VirtualSourceBuffer by the HTMLMediaSource much earlier
+ // than createRealSourceBuffers_ is called to create the second
+ // VirtualSourceBuffer because that happens as a side-effect of
+ // videojs-contrib-hls starting the audioSegmentLoader. As a result,
+ // the audioBuffer is essentially "ownerless" and no one will toggle
+ // the `updating` state back to false once the `updateend` event is received
+ //
+ // Setting `updating` to false manually will work around this
+ // situation and allow work to continue
+ buffer.updating = false;
+ } else {
+ var codecProperty = type + 'Codec_';
+ var mimeType = type + '/mp4;codecs="' + _this2[codecProperty] + '"';
+
+ buffer = makeWrappedSourceBuffer(_this2.mediaSource_.nativeMediaSource_, mimeType);
+
+ _this2.mediaSource_[type + 'Buffer_'] = buffer;
+ }
+
+ _this2[type + 'Buffer_'] = buffer;
+
+ // Wire up the events to the SourceBuffer
+ ['update', 'updatestart', 'updateend'].forEach(function (event) {
+ buffer.addEventListener(event, function () {
+ // if audio is disabled
+ if (type === 'audio' && _this2.audioDisabled_) {
+ return;
+ }
+
+ if (event === 'updateend') {
+ _this2[type + 'Buffer_'].updating = false;
+ }
+
+ var shouldTrigger = types.every(function (t) {
+ // skip checking audio's updating status if audio
+ // is not enabled
+ if (t === 'audio' && _this2.audioDisabled_) {
+ return true;
+ }
+ // if the other type if updating we don't trigger
+ if (type !== t && _this2[t + 'Buffer_'] && _this2[t + 'Buffer_'].updating) {
+ return false;
+ }
+ return true;
+ });
+
+ if (shouldTrigger) {
+ return _this2.trigger(event);
+ }
+ });
+ });
+ });
+ }
+
+ /**
+ * Emulate the native mediasource function, but our function will
+ * send all of the proposed segments to the transmuxer so that we
+ * can transmux them before we append them to our internal
+ * native source buffers in the correct format.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/appendBuffer
+ * @param {Uint8Array} segment the segment to append to the buffer
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(segment) {
+ // Start the internal "updating" state
+ this.bufferUpdating_ = true;
+
+ if (this.audioBuffer_ && this.audioBuffer_.buffered.length) {
+ var audioBuffered = this.audioBuffer_.buffered;
+
+ this.transmuxer_.postMessage({
+ action: 'setAudioAppendStart',
+ appendStart: audioBuffered.end(audioBuffered.length - 1)
+ });
+ }
+
+ if (this.videoBuffer_) {
+ this.transmuxer_.postMessage({
+ action: 'alignGopsWith',
+ gopsToAlignWith: gopsSafeToAlignWith(this.gopBuffer_, this.mediaSource_.player_ ? this.mediaSource_.player_.currentTime() : null, this.timeMapping_)
+ });
+ }
+
+ this.transmuxer_.postMessage({
+ action: 'push',
+ // Send the typed-array of data as an ArrayBuffer so that
+ // it can be sent as a "Transferable" and avoid the costly
+ // memory copy
+ data: segment.buffer,
+
+ // To recreate the original typed-array, we need information
+ // about what portion of the ArrayBuffer it was a view into
+ byteOffset: segment.byteOffset,
+ byteLength: segment.byteLength
+ }, [segment.buffer]);
+ this.transmuxer_.postMessage({ action: 'flush' });
+ }
+
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Event} event
+ * The gopInfo event from the transmuxer
+ * @param {Array} event.data.gopInfo
+ * List of gop info to append
+ */
+
+ }, {
+ key: 'appendGopInfo_',
+ value: function appendGopInfo_(event) {
+ this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, event.data.gopInfo, this.safeAppend_);
+ }
+
+ /**
+ * Emulate the native mediasource function and remove parts
+ * of the buffer from any of our internal buffers that exist
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/remove
+ * @param {Double} start position to start the remove at
+ * @param {Double} end position to end the remove at
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.updating = true;
+ this.videoBuffer_.remove(start, end);
+ this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.updating = true;
+ this.audioBuffer_.remove(start, end);
+ }
+
+ // Remove Metadata Cues (id3)
+ removeCuesFromTrack(start, end, this.metadataTrack_);
+
+ // Remove Any Captions
+ if (this.inbandTextTracks_) {
+ for (var track in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
+ }
+ }
+ }
+
+ /**
+ * Process any segments that the muxer has output
+ * Concatenate segments together based on type and append them into
+ * their respective sourceBuffers
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processPendingSegments_',
+ value: function processPendingSegments_() {
+ var sortedSegments = {
+ video: {
+ segments: [],
+ bytes: 0
+ },
+ audio: {
+ segments: [],
+ bytes: 0
+ },
+ captions: [],
+ metadata: []
+ };
+
+ // Sort segments into separate video/audio arrays and
+ // keep track of their total byte lengths
+ sortedSegments = this.pendingBuffers_.reduce(function (segmentObj, segment) {
+ var type = segment.type;
+ var data = segment.data;
+ var initSegment = segment.initSegment;
+
+ segmentObj[type].segments.push(data);
+ segmentObj[type].bytes += data.byteLength;
+
+ segmentObj[type].initSegment = initSegment;
+
+ // Gather any captions into a single array
+ if (segment.captions) {
+ segmentObj.captions = segmentObj.captions.concat(segment.captions);
+ }
+
+ if (segment.info) {
+ segmentObj[type].info = segment.info;
+ }
+
+ // Gather any metadata into a single array
+ if (segment.metadata) {
+ segmentObj.metadata = segmentObj.metadata.concat(segment.metadata);
+ }
+
+ return segmentObj;
+ }, sortedSegments);
+
+ // Create the real source buffers if they don't exist by now since we
+ // finally are sure what tracks are contained in the source
+ if (!this.videoBuffer_ && !this.audioBuffer_) {
+ // Remove any codecs that may have been specified by default but
+ // are no longer applicable now
+ if (sortedSegments.video.bytes === 0) {
+ this.videoCodec_ = null;
+ }
+ if (sortedSegments.audio.bytes === 0) {
+ this.audioCodec_ = null;
+ }
+
+ this.createRealSourceBuffers_();
+ }
+
+ if (sortedSegments.audio.info) {
+ this.mediaSource_.trigger({ type: 'audioinfo', info: sortedSegments.audio.info });
+ }
+ if (sortedSegments.video.info) {
+ this.mediaSource_.trigger({ type: 'videoinfo', info: sortedSegments.video.info });
+ }
+
+ if (this.appendAudioInitSegment_) {
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ sortedSegments.audio.segments.unshift(sortedSegments.audio.initSegment);
+ sortedSegments.audio.bytes += sortedSegments.audio.initSegment.byteLength;
+ }
+ this.appendAudioInitSegment_ = false;
+ }
+
+ var triggerUpdateend = false;
+
+ // Merge multiple video and audio segments into one and append
+ if (this.videoBuffer_ && sortedSegments.video.bytes) {
+ sortedSegments.video.segments.unshift(sortedSegments.video.initSegment);
+ sortedSegments.video.bytes += sortedSegments.video.initSegment.byteLength;
+ this.concatAndAppendSegments_(sortedSegments.video, this.videoBuffer_);
+ // TODO: are video tracks the only ones with text tracks?
+ addTextTrackData(this, sortedSegments.captions, sortedSegments.metadata);
+ } else if (this.videoBuffer_ && (this.audioDisabled_ || !this.audioBuffer_)) {
+ // The transmuxer did not return any bytes of video, meaning it was all trimmed
+ // for gop alignment. Since we have a video buffer and audio is disabled, updateend
+ // will never be triggered by this source buffer, which will cause contrib-hls
+ // to be stuck forever waiting for updateend. If audio is not disabled, updateend
+ // will be triggered by the audio buffer, which will be sent upwards since the video
+ // buffer will not be in an updating state.
+ triggerUpdateend = true;
+ }
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.concatAndAppendSegments_(sortedSegments.audio, this.audioBuffer_);
+ }
+
+ this.pendingBuffers_.length = 0;
+
+ if (triggerUpdateend) {
+ this.trigger('updateend');
+ }
+
+ // We are no longer in the internal "updating" state
+ this.bufferUpdating_ = false;
+ }
+
+ /**
+ * Combine all segments into a single Uint8Array and then append them
+ * to the destination buffer
+ *
+ * @param {Object} segmentObj
+ * @param {SourceBuffer} destinationBuffer native source buffer to append data to
+ * @private
+ */
+
+ }, {
+ key: 'concatAndAppendSegments_',
+ value: function concatAndAppendSegments_(segmentObj, destinationBuffer) {
+ var offset = 0;
+ var tempBuffer = void 0;
+
+ if (segmentObj.bytes) {
+ tempBuffer = new Uint8Array(segmentObj.bytes);
+
+ // Combine the individual segments into one large typed-array
+ segmentObj.segments.forEach(function (segment) {
+ tempBuffer.set(segment, offset);
+ offset += segment.byteLength;
+ });
+
+ try {
+ destinationBuffer.updating = true;
+ destinationBuffer.appendBuffer(tempBuffer);
+ } catch (error) {
+ if (this.mediaSource_.player_) {
+ this.mediaSource_.player_.error({
+ code: -3,
+ type: 'APPEND_BUFFER_ERR',
+ message: error.message,
+ originalError: error
+ });
+ }
+ }
+ }
+ }
+
+ /**
+ * Emulate the native mediasource function. abort any soureBuffer
+ * actions and throw out any un-appended data.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/abort
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.abort();
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.abort();
+ }
+ if (this.transmuxer_) {
+ this.transmuxer_.postMessage({ action: 'reset' });
+ }
+ this.pendingBuffers_.length = 0;
+ this.bufferUpdating_ = false;
+ }
+ }]);
+ return VirtualSourceBuffer;
+ }(videojs$1.EventTarget);
+
+ /**
+ * @file html-media-source.js
+ */
+
+ /**
+ * Our MediaSource implementation in HTML, mimics native
+ * MediaSource where/if possible.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource
+ * @class HtmlMediaSource
+ * @extends videojs.EventTarget
+ */
+
+ var HtmlMediaSource = function (_videojs$EventTarget) {
+ inherits$3(HtmlMediaSource, _videojs$EventTarget);
+
+ function HtmlMediaSource() {
+ classCallCheck$3(this, HtmlMediaSource);
+
+ var _this = possibleConstructorReturn$3(this, (HtmlMediaSource.__proto__ || Object.getPrototypeOf(HtmlMediaSource)).call(this));
+
+ var property = void 0;
+
+ _this.nativeMediaSource_ = new window_1.MediaSource();
+ // delegate to the native MediaSource's methods by default
+ for (property in _this.nativeMediaSource_) {
+ if (!(property in HtmlMediaSource.prototype) && typeof _this.nativeMediaSource_[property] === 'function') {
+ _this[property] = _this.nativeMediaSource_[property].bind(_this.nativeMediaSource_);
+ }
+ }
+
+ // emulate `duration` and `seekable` until seeking can be
+ // handled uniformly for live streams
+ // see https://github.com/w3c/media-source/issues/5
+ _this.duration_ = NaN;
+ Object.defineProperty(_this, 'duration', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return this.duration_;
+ }
+ return this.nativeMediaSource_.duration;
+ },
+ set: function set$$1(duration) {
+ this.duration_ = duration;
+ if (duration !== Infinity) {
+ this.nativeMediaSource_.duration = duration;
+ return;
+ }
+ }
+ });
+ Object.defineProperty(_this, 'seekable', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return videojs$1.createTimeRanges([[0, this.nativeMediaSource_.duration]]);
+ }
+ return this.nativeMediaSource_.seekable;
+ }
+ });
+
+ Object.defineProperty(_this, 'readyState', {
+ get: function get$$1() {
+ return this.nativeMediaSource_.readyState;
+ }
+ });
+
+ Object.defineProperty(_this, 'activeSourceBuffers', {
+ get: function get$$1() {
+ return this.activeSourceBuffers_;
+ }
+ });
+
+ // the list of virtual and native SourceBuffers created by this
+ // MediaSource
+ _this.sourceBuffers = [];
+
+ _this.activeSourceBuffers_ = [];
+
+ /**
+ * update the list of active source buffers based upon various
+ * imformation from HLS and video.js
+ *
+ * @private
+ */
+ _this.updateActiveSourceBuffers_ = function () {
+ // Retain the reference but empty the array
+ _this.activeSourceBuffers_.length = 0;
+
+ // If there is only one source buffer, then it will always be active and audio will
+ // be disabled based on the codec of the source buffer
+ if (_this.sourceBuffers.length === 1) {
+ var sourceBuffer = _this.sourceBuffers[0];
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+ sourceBuffer.audioDisabled_ = !sourceBuffer.audioCodec_;
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ return;
+ }
+
+ // There are 2 source buffers, a combined (possibly video only) source buffer and
+ // and an audio only source buffer.
+ // By default, the audio in the combined virtual source buffer is enabled
+ // and the audio-only source buffer (if it exists) is disabled.
+ var disableCombined = false;
+ var disableAudioOnly = true;
+
+ // TODO: maybe we can store the sourcebuffers on the track objects?
+ // safari may do something like this
+ for (var i = 0; i < _this.player_.audioTracks().length; i++) {
+ var track = _this.player_.audioTracks()[i];
+
+ if (track.enabled && track.kind !== 'main') {
+ // The enabled track is an alternate audio track so disable the audio in
+ // the combined source buffer and enable the audio-only source buffer.
+ disableCombined = true;
+ disableAudioOnly = false;
+ break;
+ }
+ }
+
+ _this.sourceBuffers.forEach(function (sourceBuffer, index) {
+ /* eslinst-disable */
+ // TODO once codecs are required, we can switch to using the codecs to determine
+ // what stream is the video stream, rather than relying on videoTracks
+ /* eslinst-enable */
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+
+ if (sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // combined
+ sourceBuffer.audioDisabled_ = disableCombined;
+ } else if (sourceBuffer.videoCodec_ && !sourceBuffer.audioCodec_) {
+ // If the "combined" source buffer is video only, then we do not want
+ // disable the audio-only source buffer (this is mostly for demuxed
+ // audio and video hls)
+ sourceBuffer.audioDisabled_ = true;
+ disableAudioOnly = false;
+ } else if (!sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // audio only
+ // In the case of audio only with alternate audio and disableAudioOnly is true
+ // this means we want to disable the audio on the alternate audio sourcebuffer
+ // but not the main "combined" source buffer. The "combined" source buffer is
+ // always at index 0, so this ensures audio won't be disabled in both source
+ // buffers.
+ sourceBuffer.audioDisabled_ = index ? disableAudioOnly : !disableAudioOnly;
+ if (sourceBuffer.audioDisabled_) {
+ return;
+ }
+ }
+
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ });
+ };
+
+ _this.onPlayerMediachange_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ sourceBuffer.appendAudioInitSegment_ = true;
+ });
+ };
+
+ _this.onHlsReset_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.postMessage({ action: 'resetCaptions' });
+ }
+ });
+ };
+
+ _this.onHlsSegmentTimeMapping_ = function (event) {
+ _this.sourceBuffers.forEach(function (buffer) {
+ return buffer.timeMapping_ = event.mapping;
+ });
+ };
+
+ // Re-emit MediaSource events on the polyfill
+ ['sourceopen', 'sourceclose', 'sourceended'].forEach(function (eventName) {
+ this.nativeMediaSource_.addEventListener(eventName, this.trigger.bind(this));
+ }, _this);
+
+ // capture the associated player when the MediaSource is
+ // successfully attached
+ _this.on('sourceopen', function (event) {
+ // Get the player this MediaSource is attached to
+ var video = document_1.querySelector('[src="' + _this.url_ + '"]');
+
+ if (!video) {
+ return;
+ }
+
+ _this.player_ = videojs$1(video.parentNode);
+
+ // hls-reset is fired by videojs.Hls on to the tech after the main SegmentLoader
+ // resets its state and flushes the buffer
+ _this.player_.tech_.on('hls-reset', _this.onHlsReset_);
+ // hls-segment-time-mapping is fired by videojs.Hls on to the tech after the main
+ // SegmentLoader inspects an MTS segment and has an accurate stream to display
+ // time mapping
+ _this.player_.tech_.on('hls-segment-time-mapping', _this.onHlsSegmentTimeMapping_);
+
+ if (_this.player_.audioTracks && _this.player_.audioTracks()) {
+ _this.player_.audioTracks().on('change', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('addtrack', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('removetrack', _this.updateActiveSourceBuffers_);
+ }
+
+ _this.player_.on('mediachange', _this.onPlayerMediachange_);
+ });
+
+ _this.on('sourceended', function (event) {
+ var duration = durationOfVideo(_this.duration);
+
+ for (var i = 0; i < _this.sourceBuffers.length; i++) {
+ var sourcebuffer = _this.sourceBuffers[i];
+ var cues = sourcebuffer.metadataTrack_ && sourcebuffer.metadataTrack_.cues;
+
+ if (cues && cues.length) {
+ cues[cues.length - 1].endTime = duration;
+ }
+ }
+ });
+
+ // explicitly terminate any WebWorkers that were created
+ // by SourceHandlers
+ _this.on('sourceclose', function (event) {
+ this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.terminate();
+ }
+ });
+
+ this.sourceBuffers.length = 0;
+ if (!this.player_) {
+ return;
+ }
+
+ if (this.player_.audioTracks && this.player_.audioTracks()) {
+ this.player_.audioTracks().off('change', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('addtrack', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('removetrack', this.updateActiveSourceBuffers_);
+ }
+
+ // We can only change this if the player hasn't been disposed of yet
+ // because `off` eventually tries to use the el_ property. If it has
+ // been disposed of, then don't worry about it because there are no
+ // event handlers left to unbind anyway
+ if (this.player_.el_) {
+ this.player_.off('mediachange', this.onPlayerMediachange_);
+ this.player_.tech_.off('hls-reset', this.onHlsReset_);
+ this.player_.tech_.off('hls-segment-time-mapping', this.onHlsSegmentTimeMapping_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * Add a range that that can now be seeked to.
+ *
+ * @param {Double} start where to start the addition
+ * @param {Double} end where to end the addition
+ * @private
+ */
+
+ createClass$2(HtmlMediaSource, [{
+ key: 'addSeekableRange_',
+ value: function addSeekableRange_(start, end) {
+ var error = void 0;
+
+ if (this.duration !== Infinity) {
+ error = new Error('MediaSource.addSeekableRange() can only be invoked ' + 'when the duration is Infinity');
+ error.name = 'InvalidStateError';
+ error.code = 11;
+ throw error;
+ }
+
+ if (end > this.nativeMediaSource_.duration || isNaN(this.nativeMediaSource_.duration)) {
+ this.nativeMediaSource_.duration = end;
+ }
+ }
+
+ /**
+ * Add a source buffer to the media source.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/addSourceBuffer
+ * @param {String} type the content-type of the content
+ * @return {Object} the created source buffer
+ */
+
+ }, {
+ key: 'addSourceBuffer',
+ value: function addSourceBuffer(type) {
+ var buffer = void 0;
+ var parsedType = parseContentType(type);
+
+ // Create a VirtualSourceBuffer to transmux MPEG-2 transport
+ // stream segments into fragmented MP4s
+ if (/^(video|audio)\/mp2t$/i.test(parsedType.type)) {
+ var codecs = [];
+
+ if (parsedType.parameters && parsedType.parameters.codecs) {
+ codecs = parsedType.parameters.codecs.split(',');
+ codecs = translateLegacyCodecs(codecs);
+ codecs = codecs.filter(function (codec) {
+ return isAudioCodec(codec) || isVideoCodec(codec);
+ });
+ }
+
+ if (codecs.length === 0) {
+ codecs = ['avc1.4d400d', 'mp4a.40.2'];
+ }
+
+ buffer = new VirtualSourceBuffer(this, codecs);
+
+ if (this.sourceBuffers.length !== 0) {
+ // If another VirtualSourceBuffer already exists, then we are creating a
+ // SourceBuffer for an alternate audio track and therefore we know that
+ // the source has both an audio and video track.
+ // That means we should trigger the manual creation of the real
+ // SourceBuffers instead of waiting for the transmuxer to return data
+ this.sourceBuffers[0].createRealSourceBuffers_();
+ buffer.createRealSourceBuffers_();
+
+ // Automatically disable the audio on the first source buffer if
+ // a second source buffer is ever created
+ this.sourceBuffers[0].audioDisabled_ = true;
+ }
+ } else {
+ // delegate to the native implementation
+ buffer = this.nativeMediaSource_.addSourceBuffer(type);
+ }
+
+ this.sourceBuffers.push(buffer);
+ return buffer;
+ }
+ }]);
+ return HtmlMediaSource;
+ }(videojs$1.EventTarget);
+
+ /**
+ * @file videojs-contrib-media-sources.js
+ */
+ var urlCount = 0;
+
+ // ------------
+ // Media Source
+ // ------------
+
+ // store references to the media sources so they can be connected
+ // to a video element (a swf object)
+ // TODO: can we store this somewhere local to this module?
+ videojs$1.mediaSources = {};
+
+ /**
+ * Provide a method for a swf object to notify JS that a
+ * media source is now open.
+ *
+ * @param {String} msObjectURL string referencing the MSE Object URL
+ * @param {String} swfId the swf id
+ */
+ var open = function open(msObjectURL, swfId) {
+ var mediaSource = videojs$1.mediaSources[msObjectURL];
+
+ if (mediaSource) {
+ mediaSource.trigger({ type: 'sourceopen', swfId: swfId });
+ } else {
+ throw new Error('Media Source not found (Video.js)');
+ }
+ };
+
+ /**
+ * Check to see if the native MediaSource object exists and supports
+ * an MP4 container with both H.264 video and AAC-LC audio.
+ *
+ * @return {Boolean} if native media sources are supported
+ */
+ var supportsNativeMediaSources = function supportsNativeMediaSources() {
+ return !!window_1.MediaSource && !!window_1.MediaSource.isTypeSupported && window_1.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"');
+ };
+
+ /**
+ * An emulation of the MediaSource API so that we can support
+ * native and non-native functionality. returns an instance of
+ * HtmlMediaSource.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/MediaSource
+ */
+ var MediaSource = function MediaSource() {
+ this.MediaSource = {
+ open: open,
+ supportsNativeMediaSources: supportsNativeMediaSources
+ };
+
+ if (supportsNativeMediaSources()) {
+ return new HtmlMediaSource();
+ }
+
+ throw new Error('Cannot use create a virtual MediaSource for this video');
+ };
+
+ MediaSource.open = open;
+ MediaSource.supportsNativeMediaSources = supportsNativeMediaSources;
+
+ /**
+ * A wrapper around the native URL for our MSE object
+ * implementation, this object is exposed under videojs.URL
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/URL
+ */
+ var URL$1 = {
+ /**
+ * A wrapper around the native createObjectURL for our objects.
+ * This function maps a native or emulated mediaSource to a blob
+ * url so that it can be loaded into video.js
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
+ * @param {MediaSource} object the object to create a blob url to
+ */
+ createObjectURL: function createObjectURL(object) {
+ var objectUrlPrefix = 'blob:vjs-media-source/';
+ var url = void 0;
+
+ // use the native MediaSource to generate an object URL
+ if (object instanceof HtmlMediaSource) {
+ url = window_1.URL.createObjectURL(object.nativeMediaSource_);
+ object.url_ = url;
+ return url;
+ }
+ // if the object isn't an emulated MediaSource, delegate to the
+ // native implementation
+ if (!(object instanceof HtmlMediaSource)) {
+ url = window_1.URL.createObjectURL(object);
+ object.url_ = url;
+ return url;
+ }
+
+ // build a URL that can be used to map back to the emulated
+ // MediaSource
+ url = objectUrlPrefix + urlCount;
+
+ urlCount++;
+
+ // setup the mapping back to object
+ videojs$1.mediaSources[url] = object;
+
+ return url;
+ }
+ };
+
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+
+ var EventTarget$1$1 = videojs$1.EventTarget,
+ mergeOptions$2 = videojs$1.mergeOptions;
+
+ /**
+ * Returns a new master manifest that is the result of merging an updated master manifest
+ * into the original version.
+ *
+ * @param {Object} oldMaster
+ * The old parsed mpd object
+ * @param {Object} newMaster
+ * The updated parsed mpd object
+ * @return {Object}
+ * A new object representing the original master manifest with the updated media
+ * playlists merged in
+ */
+
+ var updateMaster$1 = function updateMaster$$1(oldMaster, newMaster) {
+ var update = mergeOptions$2(oldMaster, {
+ // These are top level properties that can be updated
+ duration: newMaster.duration,
+ minimumUpdatePeriod: newMaster.minimumUpdatePeriod
+ });
+
+ // First update the playlists in playlist list
+ for (var i = 0; i < newMaster.playlists.length; i++) {
+ var playlistUpdate = updateMaster(update, newMaster.playlists[i]);
+
+ if (playlistUpdate) {
+ update = playlistUpdate;
+ }
+ }
+
+ // Then update media group playlists
+ forEachMediaGroup(newMaster, function (properties, type, group, label) {
+ if (properties.playlists && properties.playlists.length) {
+ var uri = properties.playlists[0].uri;
+ var _playlistUpdate = updateMaster(update, properties.playlists[0]);
+
+ if (_playlistUpdate) {
+ update = _playlistUpdate;
+ // update the playlist reference within media groups
+ update.mediaGroups[type][group][label].playlists[0] = update.playlists[uri];
+ }
+ }
+ });
+
+ return update;
+ };
+
+ var DashPlaylistLoader = function (_EventTarget) {
+ inherits$3(DashPlaylistLoader, _EventTarget);
+
+ // DashPlaylistLoader must accept either a src url or a playlist because subsequent
+ // playlist loader setups from media groups will expect to be able to pass a playlist
+ // (since there aren't external URLs to media playlists with DASH)
+ function DashPlaylistLoader(srcUrlOrPlaylist, hls, withCredentials, masterPlaylistLoader) {
+ classCallCheck$3(this, DashPlaylistLoader);
+
+ var _this = possibleConstructorReturn$3(this, (DashPlaylistLoader.__proto__ || Object.getPrototypeOf(DashPlaylistLoader)).call(this));
+
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!srcUrlOrPlaylist) {
+ throw new Error('A non-empty playlist URL or playlist is required');
+ }
+
+ // event naming?
+ _this.on('minimumUpdatePeriod', function () {
+ _this.refreshXml_();
+ });
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ _this.refreshMedia_();
+ });
+
+ // initialize the loader state
+ if (typeof srcUrlOrPlaylist === 'string') {
+ _this.srcUrl = srcUrlOrPlaylist;
+ _this.state = 'HAVE_NOTHING';
+ return possibleConstructorReturn$3(_this);
+ }
+
+ _this.masterPlaylistLoader_ = masterPlaylistLoader;
+
+ _this.state = 'HAVE_METADATA';
+ _this.started = true;
+ // we only should have one playlist so select it
+ _this.media(srcUrlOrPlaylist);
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window_1.setTimeout(function () {
+ _this.trigger('loadedmetadata');
+ }, 0);
+ return _this;
+ }
+
+ createClass$2(DashPlaylistLoader, [{
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ this.state = 'HAVE_METADATA';
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ // switching from an already loaded playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.media_ = playlist;
+
+ this.refreshMedia_();
+
+ // trigger media change if the active media has been updated
+ if (startingState !== 'HAVE_MASTER') {
+ this.trigger('mediachange');
+ }
+ }
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ }
+ }, {
+ key: 'load',
+ value: function load() {
+ // because the playlists are internal to the manifest, load should either load the
+ // main manifest, or do nothing but trigger an event
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Parses the master xml string and updates playlist uri references
+ *
+ * @return {Object}
+ * The parsed mpd manifest object
+ */
+
+ }, {
+ key: 'parseMasterXml',
+ value: function parseMasterXml() {
+ var master = parse(this.masterXml_, {
+ manifestUri: this.srcUrl,
+ clientOffset: this.clientOffset_
+ });
+
+ master.uri = this.srcUrl;
+
+ // Set up phony URIs for the playlists since we won't have external URIs for DASH
+ // but reference playlists by their URI throughout the project
+ // TODO: Should we create the dummy uris in mpd-parser as well (leaning towards yes).
+ for (var i = 0; i < master.playlists.length; i++) {
+ var phonyUri = 'placeholder-uri-' + i;
+
+ master.playlists[i].uri = phonyUri;
+ // set up by URI references
+ master.playlists[phonyUri] = master.playlists[i];
+ }
+
+ // set up phony URIs for the media group playlists since we won't have external
+ // URIs for DASH but reference playlists by their URI throughout the project
+ forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
+ if (properties.playlists && properties.playlists.length) {
+ var _phonyUri = 'placeholder-uri-' + mediaType + '-' + groupKey + '-' + labelKey;
+
+ properties.playlists[0].uri = _phonyUri;
+ // setup URI references
+ master.playlists[_phonyUri] = properties.playlists[0];
+ }
+ });
+
+ setupMediaPlaylists(master);
+ resolveMediaGroupUris(master);
+
+ return master;
+ }
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this2 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this2.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this2.request = null;
+
+ if (error) {
+ _this2.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this2.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this2.state === 'HAVE_NOTHING') {
+ _this2.started = false;
+ }
+ return _this2.trigger('error');
+ }
+
+ _this2.masterXml_ = req.responseText;
+
+ if (req.responseHeaders && req.responseHeaders.date) {
+ _this2.masterLoaded_ = Date.parse(req.responseHeaders.date);
+ } else {
+ _this2.masterLoaded_ = Date.now();
+ }
+
+ _this2.syncClientServerClock_(_this2.onClientServerClockSync_.bind(_this2));
+ });
+ }
+
+ /**
+ * Parses the master xml for UTCTiming node to sync the client clock to the server
+ * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
+ *
+ * @param {Function} done
+ * Function to call when clock sync has completed
+ */
+
+ }, {
+ key: 'syncClientServerClock_',
+ value: function syncClientServerClock_(done) {
+ var _this3 = this;
+
+ var utcTiming = parseUTCTiming(this.masterXml_);
+
+ // No UTCTiming element found in the mpd. Use Date header from mpd request as the
+ // server clock
+ if (utcTiming === null) {
+ this.clientOffset_ = this.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ if (utcTiming.method === 'DIRECT') {
+ this.clientOffset_ = utcTiming.value - Date.now();
+ return done();
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl$1(this.srcUrl, utcTiming.value),
+ method: utcTiming.method,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ // sync request failed, fall back to using date header from mpd
+ // TODO: log warning
+ _this3.clientOffset_ = _this3.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ var serverTime = void 0;
+
+ if (utcTiming.method === 'HEAD') {
+ if (!req.responseHeaders || !req.responseHeaders.date) {
+ // expected date header not preset, fall back to using date header from mpd
+ // TODO: log warning
+ serverTime = _this3.masterLoaded_;
+ } else {
+ serverTime = Date.parse(req.responseHeaders.date);
+ }
+ } else {
+ serverTime = Date.parse(req.responseText);
+ }
+
+ _this3.clientOffset_ = serverTime - Date.now();
+
+ done();
+ });
+ }
+
+ /**
+ * Handler for after client/server clock synchronization has happened. Sets up
+ * xml refresh timer if specificed by the manifest.
+ */
+
+ }, {
+ key: 'onClientServerClockSync_',
+ value: function onClientServerClockSync_() {
+ var _this4 = this;
+
+ this.master = this.parseMasterXml();
+
+ this.state = 'HAVE_MASTER';
+
+ this.trigger('loadedplaylist');
+
+ if (!this.media_) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ this.media(this.master.playlists[0]);
+ }
+ // trigger loadedmetadata to resolve setup of media groups
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window_1.setTimeout(function () {
+ _this4.trigger('loadedmetadata');
+ }, 0);
+
+ // TODO: minimumUpdatePeriod can have a value of 0. Currently the manifest will not
+ // be refreshed when this is the case. The inter-op guide says that when the
+ // minimumUpdatePeriod is 0, the manifest should outline all currently available
+ // segments, but future segments may require an update. I think a good solution
+ // would be to update the manifest at the same rate that the media playlists
+ // are "refreshed", i.e. every targetDuration.
+ if (this.master.minimumUpdatePeriod) {
+ window_1.setTimeout(function () {
+ _this4.trigger('minimumUpdatePeriod');
+ }, this.master.minimumUpdatePeriod);
+ }
+ }
+
+ /**
+ * Sends request to refresh the master xml and updates the parsed master manifest
+ * TODO: Does the client offset need to be recalculated when the xml is refreshed?
+ */
+
+ }, {
+ key: 'refreshXml_',
+ value: function refreshXml_() {
+ var _this5 = this;
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ _this5.masterXml_ = req.responseText;
+
+ var newMaster = _this5.parseMasterXml();
+
+ _this5.master = updateMaster$1(_this5.master, newMaster);
+
+ window_1.setTimeout(function () {
+ _this5.trigger('minimumUpdatePeriod');
+ }, _this5.master.minimumUpdatePeriod);
+ });
+ }
+
+ /**
+ * Refreshes the media playlist by re-parsing the master xml and updating playlist
+ * references. If this is an alternate loader, the updated parsed manifest is retrieved
+ * from the master loader.
+ */
+
+ }, {
+ key: 'refreshMedia_',
+ value: function refreshMedia_() {
+ var _this6 = this;
+
+ var oldMaster = void 0;
+ var newMaster = void 0;
+
+ if (this.masterPlaylistLoader_) {
+ oldMaster = this.masterPlaylistLoader_.master;
+ newMaster = this.masterPlaylistLoader_.parseMasterXml();
+ } else {
+ oldMaster = this.master;
+ newMaster = this.parseMasterXml();
+ }
+
+ var updatedMaster = updateMaster$1(oldMaster, newMaster);
+
+ if (updatedMaster) {
+ if (this.masterPlaylistLoader_) {
+ this.masterPlaylistLoader_.master = updatedMaster;
+ } else {
+ this.master = updatedMaster;
+ }
+ this.media_ = updatedMaster.playlists[this.media_.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ if (!this.media().endList) {
+ this.mediaUpdateTimeout = window_1.setTimeout(function () {
+ _this6.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!updatedMaster));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ }]);
+ return DashPlaylistLoader;
+ }(EventTarget$1$1);
+
+ var logger = function logger(source) {
+ if (videojs$1.log.debug) {
+ return videojs$1.log.debug.bind(videojs$1, 'VHS:', source + ' >');
+ }
+
+ return function () {};
+ };
+
+ function noop$1() {}
+
+ /**
+ * @file source-updater.js
+ */
+
+ /**
+ * A queue of callbacks to be serialized and applied when a
+ * MediaSource and its associated SourceBuffers are not in the
+ * updating state. It is used by the segment loader to update the
+ * underlying SourceBuffers when new data is loaded, for instance.
+ *
+ * @class SourceUpdater
+ * @param {MediaSource} mediaSource the MediaSource to create the
+ * SourceBuffer from
+ * @param {String} mimeType the desired MIME type of the underlying
+ * SourceBuffer
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer is
+ * added to the media source
+ */
+
+ var SourceUpdater = function () {
+ function SourceUpdater(mediaSource, mimeType, type, sourceBufferEmitter) {
+ classCallCheck$3(this, SourceUpdater);
+
+ this.callbacks_ = [];
+ this.pendingCallback_ = null;
+ this.timestampOffset_ = 0;
+ this.mediaSource = mediaSource;
+ this.processedAppend_ = false;
+ this.type_ = type;
+ this.mimeType_ = mimeType;
+ this.logger_ = logger('SourceUpdater[' + type + '][' + mimeType + ']');
+
+ if (mediaSource.readyState === 'closed') {
+ mediaSource.addEventListener('sourceopen', this.createSourceBuffer_.bind(this, mimeType, sourceBufferEmitter));
+ } else {
+ this.createSourceBuffer_(mimeType, sourceBufferEmitter);
+ }
+ }
+
+ createClass$2(SourceUpdater, [{
+ key: 'createSourceBuffer_',
+ value: function createSourceBuffer_(mimeType, sourceBufferEmitter) {
+ var _this = this;
+
+ this.sourceBuffer_ = this.mediaSource.addSourceBuffer(mimeType);
+
+ this.logger_('created SourceBuffer');
+
+ if (sourceBufferEmitter) {
+ sourceBufferEmitter.trigger('sourcebufferadded');
+
+ if (this.mediaSource.sourceBuffers.length < 2) {
+ // There's another source buffer we must wait for before we can start updating
+ // our own (or else we can get into a bad state, i.e., appending video/audio data
+ // before the other video/audio source buffer is available and leading to a video
+ // or audio only buffer).
+ sourceBufferEmitter.on('sourcebufferadded', function () {
+ _this.start_();
+ });
+ return;
+ }
+ }
+
+ this.start_();
+ }
+ }, {
+ key: 'start_',
+ value: function start_() {
+ var _this2 = this;
+
+ this.started_ = true;
+
+ // run completion handlers and process callbacks as updateend
+ // events fire
+ this.onUpdateendCallback_ = function () {
+ var pendingCallback = _this2.pendingCallback_;
+
+ _this2.pendingCallback_ = null;
+
+ _this2.logger_('buffered [' + printableRange(_this2.buffered()) + ']');
+
+ if (pendingCallback) {
+ pendingCallback();
+ }
+
+ _this2.runCallback_();
+ };
+
+ this.sourceBuffer_.addEventListener('updateend', this.onUpdateendCallback_);
+
+ this.runCallback_();
+ }
+
+ /**
+ * Aborts the current segment and resets the segment parser.
+ *
+ * @param {Function} done function to call when done
+ * @see http://w3c.github.io/media-source/#widl-SourceBuffer-abort-void
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort(done) {
+ var _this3 = this;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this3.sourceBuffer_.abort();
+ }, done);
+ }
+ }
+
+ /**
+ * Queue an update to append an ArrayBuffer.
+ *
+ * @param {ArrayBuffer} bytes
+ * @param {Function} done the function to call when done
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(bytes, done) {
+ var _this4 = this;
+
+ this.processedAppend_ = true;
+ this.queueCallback_(function () {
+ _this4.sourceBuffer_.appendBuffer(bytes);
+ }, done);
+ }
+
+ /**
+ * Indicates what TimeRanges are buffered in the managed SourceBuffer.
+ *
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-buffered
+ */
+
+ }, {
+ key: 'buffered',
+ value: function buffered() {
+ if (!this.sourceBuffer_) {
+ return videojs$1.createTimeRanges();
+ }
+ return this.sourceBuffer_.buffered;
+ }
+
+ /**
+ * Queue an update to remove a time range from the buffer.
+ *
+ * @param {Number} start where to start the removal
+ * @param {Number} end where to end the removal
+ * @param {Function} [done=noop] optional callback to be executed when the remove
+ * operation is complete
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ var _this5 = this;
+
+ var done = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : noop$1;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this5.logger_('remove [' + start + ' => ' + end + ']');
+ _this5.sourceBuffer_.remove(start, end);
+ }, done);
+ }
+ }
+
+ /**
+ * Whether the underlying sourceBuffer is updating or not
+ *
+ * @return {Boolean} the updating status of the SourceBuffer
+ */
+
+ }, {
+ key: 'updating',
+ value: function updating() {
+ return !this.sourceBuffer_ || this.sourceBuffer_.updating || this.pendingCallback_;
+ }
+
+ /**
+ * Set/get the timestampoffset on the SourceBuffer
+ *
+ * @return {Number} the timestamp offset
+ */
+
+ }, {
+ key: 'timestampOffset',
+ value: function timestampOffset(offset) {
+ var _this6 = this;
+
+ if (typeof offset !== 'undefined') {
+ this.queueCallback_(function () {
+ _this6.sourceBuffer_.timestampOffset = offset;
+ });
+ this.timestampOffset_ = offset;
+ }
+ return this.timestampOffset_;
+ }
+
+ /**
+ * Queue a callback to run
+ */
+
+ }, {
+ key: 'queueCallback_',
+ value: function queueCallback_(callback, done) {
+ this.callbacks_.push([callback.bind(this), done]);
+ this.runCallback_();
+ }
+
+ /**
+ * Run a queued callback
+ */
+
+ }, {
+ key: 'runCallback_',
+ value: function runCallback_() {
+ var callbacks = void 0;
+
+ if (!this.updating() && this.callbacks_.length && this.started_) {
+ callbacks = this.callbacks_.shift();
+ this.pendingCallback_ = callbacks[1];
+ callbacks[0]();
+ }
+ }
+
+ /**
+ * dispose of the source updater and the underlying sourceBuffer
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.sourceBuffer_.removeEventListener('updateend', this.onUpdateendCallback_);
+ if (this.sourceBuffer_ && this.mediaSource.readyState === 'open') {
+ this.sourceBuffer_.abort();
+ }
+ }
+ }]);
+ return SourceUpdater;
+ }();
+
+ var Config = {
+ GOAL_BUFFER_LENGTH: 30,
+ MAX_GOAL_BUFFER_LENGTH: 60,
+ GOAL_BUFFER_LENGTH_RATE: 1,
+ // A fudge factor to apply to advertised playlist bitrates to account for
+ // temporary flucations in client bandwidth
+ BANDWIDTH_VARIANCE: 1.2,
+ // How much of the buffer must be filled before we consider upswitching
+ BUFFER_LOW_WATER_LINE: 0,
+ MAX_BUFFER_LOW_WATER_LINE: 30,
+ BUFFER_LOW_WATER_LINE_RATE: 1
+ };
+
+ var REQUEST_ERRORS = {
+ FAILURE: 2,
+ TIMEOUT: -101,
+ ABORTED: -102
+ };
+
+ /**
+ * Turns segment byterange into a string suitable for use in
+ * HTTP Range requests
+ *
+ * @param {Object} byterange - an object with two values defining the start and end
+ * of a byte-range
+ */
+ var byterangeStr = function byterangeStr(byterange) {
+ var byterangeStart = void 0;
+ var byterangeEnd = void 0;
+
+ // `byterangeEnd` is one less than `offset + length` because the HTTP range
+ // header uses inclusive ranges
+ byterangeEnd = byterange.offset + byterange.length - 1;
+ byterangeStart = byterange.offset;
+ return 'bytes=' + byterangeStart + '-' + byterangeEnd;
+ };
+
+ /**
+ * Defines headers for use in the xhr request for a particular segment.
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ */
+ var segmentXhrHeaders = function segmentXhrHeaders(segment) {
+ var headers = {};
+
+ if (segment.byterange) {
+ headers.Range = byterangeStr(segment.byterange);
+ }
+ return headers;
+ };
+
+ /**
+ * Abort all requests
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ */
+ var abortAll = function abortAll(activeXhrs) {
+ activeXhrs.forEach(function (xhr) {
+ xhr.abort();
+ });
+ };
+
+ /**
+ * Gather important bandwidth stats once a request has completed
+ *
+ * @param {Object} request - the XHR request from which to gather stats
+ */
+ var getRequestStats = function getRequestStats(request) {
+ return {
+ bandwidth: request.bandwidth,
+ bytesReceived: request.bytesReceived || 0,
+ roundTripTime: request.roundTripTime || 0
+ };
+ };
+
+ /**
+ * If possible gather bandwidth stats as a request is in
+ * progress
+ *
+ * @param {Event} progressEvent - an event object from an XHR's progress event
+ */
+ var getProgressStats = function getProgressStats(progressEvent) {
+ var request = progressEvent.target;
+ var roundTripTime = Date.now() - request.requestTime;
+ var stats = {
+ bandwidth: Infinity,
+ bytesReceived: 0,
+ roundTripTime: roundTripTime || 0
+ };
+
+ stats.bytesReceived = progressEvent.loaded;
+ // This can result in Infinity if stats.roundTripTime is 0 but that is ok
+ // because we should only use bandwidth stats on progress to determine when
+ // abort a request early due to insufficient bandwidth
+ stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
+
+ return stats;
+ };
+
+ /**
+ * Handle all error conditions in one place and return an object
+ * with all the information
+ *
+ * @param {Error|null} error - if non-null signals an error occured with the XHR
+ * @param {Object} request - the XHR request that possibly generated the error
+ */
+ var handleErrors = function handleErrors(error, request) {
+ if (request.timedout) {
+ return {
+ status: request.status,
+ message: 'HLS request timed-out at URL: ' + request.uri,
+ code: REQUEST_ERRORS.TIMEOUT,
+ xhr: request
+ };
+ }
+
+ if (request.aborted) {
+ return {
+ status: request.status,
+ message: 'HLS request aborted at URL: ' + request.uri,
+ code: REQUEST_ERRORS.ABORTED,
+ xhr: request
+ };
+ }
+
+ if (error) {
+ return {
+ status: request.status,
+ message: 'HLS request errored at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ };
+ }
+
+ return null;
+ };
+
+ /**
+ * Handle responses for key data and convert the key data to the correct format
+ * for the decryption step later
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+ var handleKeyResponse = function handleKeyResponse(segment, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ if (response.byteLength !== 16) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Invalid HLS key at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ var view = new DataView(response);
+
+ segment.key.bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
+ return finishProcessingFn(null, segment);
+ };
+ };
+
+ /**
+ * Handle init-segment responses
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+ var handleInitSegmentResponse = function handleInitSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.map.bytes = new Uint8Array(request.response);
+
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ segment.map.timescales = probe.timescale(segment.map.bytes);
+ segment.map.videoTrackIds = probe.videoTrackIds(segment.map.bytes);
+
+ return finishProcessingFn(null, segment);
+ };
+ };
+
+ /**
+ * Response handler for segment-requests being sure to set the correct
+ * property depending on whether the segment is encryped or not
+ * Also records and keeps track of stats that are used for ABR purposes
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+ var handleSegmentResponse = function handleSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+ var parsed = void 0;
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.stats = getRequestStats(request);
+
+ if (segment.key) {
+ segment.encryptedBytes = new Uint8Array(request.response);
+ } else {
+ segment.bytes = new Uint8Array(request.response);
+ }
+
+ // This is likely an FMP4 and has the init segment.
+ // Run through the CaptionParser in case there are captions.
+ if (segment.map && segment.map.bytes) {
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ parsed = captionParser.parse(segment.bytes, segment.map.videoTrackIds, segment.map.timescales);
+
+ if (parsed && parsed.captions) {
+ segment.captionStreams = parsed.captionStreams;
+ segment.fmp4Captions = parsed.captions;
+ }
+ }
+
+ return finishProcessingFn(null, segment);
+ };
+ };
+
+ /**
+ * Decrypt the segment via the decryption web worker
+ *
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} doneFn - a callback that is executed after decryption has completed
+ */
+ var decryptSegment = function decryptSegment(decrypter, segment, doneFn) {
+ var decryptionHandler = function decryptionHandler(event) {
+ if (event.data.source === segment.requestId) {
+ decrypter.removeEventListener('message', decryptionHandler);
+ var decrypted = event.data.decrypted;
+
+ segment.bytes = new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength);
+ return doneFn(null, segment);
+ }
+ };
+
+ decrypter.addEventListener('message', decryptionHandler);
+
+ // this is an encrypted segment
+ // incrementally decrypt the segment
+ decrypter.postMessage(createTransferableMessage({
+ source: segment.requestId,
+ encrypted: segment.encryptedBytes,
+ key: segment.key.bytes,
+ iv: segment.key.iv
+ }), [segment.encryptedBytes.buffer, segment.key.bytes.buffer]);
+ };
+
+ /**
+ * The purpose of this function is to get the most pertinent error from the
+ * array of errors.
+ * For instance if a timeout and two aborts occur, then the aborts were
+ * likely triggered by the timeout so return that error object.
+ */
+ var getMostImportantError = function getMostImportantError(errors) {
+ return errors.reduce(function (prev, err) {
+ return err.code > prev.code ? err : prev;
+ });
+ };
+
+ /**
+ * This function waits for all XHRs to finish (with either success or failure)
+ * before continueing processing via it's callback. The function gathers errors
+ * from each request into a single errors array so that the error status for
+ * each request can be examined later.
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Function} doneFn - a callback that is executed after all resources have been
+ * downloaded and any decryption completed
+ */
+ var waitForCompletion = function waitForCompletion(activeXhrs, decrypter, doneFn) {
+ var errors = [];
+ var count = 0;
+
+ return function (error, segment) {
+ if (error) {
+ // If there are errors, we have to abort any outstanding requests
+ abortAll(activeXhrs);
+ errors.push(error);
+ }
+ count += 1;
+
+ if (count === activeXhrs.length) {
+ // Keep track of when *all* of the requests have completed
+ segment.endOfAllRequests = Date.now();
+
+ if (errors.length > 0) {
+ var worstError = getMostImportantError(errors);
+
+ return doneFn(worstError, segment);
+ }
+ if (segment.encryptedBytes) {
+ return decryptSegment(decrypter, segment, doneFn);
+ }
+ // Otherwise, everything is ready just continue
+ return doneFn(null, segment);
+ }
+ };
+ };
+
+ /**
+ * Simple progress event callback handler that gathers some stats before
+ * executing a provided callback with the `segment` object
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that is executed each time a progress event
+ * is received
+ * @param {Event} event - the progress event object from XMLHttpRequest
+ */
+ var handleProgress = function handleProgress(segment, progressFn) {
+ return function (event) {
+ segment.stats = videojs$1.mergeOptions(segment.stats, getProgressStats(event));
+
+ // record the time that we receive the first byte of data
+ if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
+ segment.stats.firstBytesReceivedAt = Date.now();
+ }
+
+ return progressFn(event, segment);
+ };
+ };
+
+ /**
+ * Load all resources and does any processing necessary for a media-segment
+ *
+ * Features:
+ * decrypts the media-segment if it has a key uri and an iv
+ * aborts *all* requests if *any* one request fails
+ *
+ * The segment object, at minimum, has the following format:
+ * {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [key]: {
+ * resolvedUri: String
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * iv: {
+ * bytes: Uint32Array
+ * }
+ * },
+ * [map]: {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [bytes]: Uint8Array
+ * }
+ * }
+ * ...where [name] denotes optional properties
+ *
+ * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
+ * @param {Object} xhrOptions - the base options to provide to all xhr requests
+ * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
+ * decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that receives progress events from the main
+ * segment's xhr request
+ * @param {Function} doneFn - a callback that is executed only once all requests have
+ * succeeded or failed
+ * @returns {Function} a function that, when invoked, immediately aborts all
+ * outstanding requests
+ */
+ var mediaSegmentRequest = function mediaSegmentRequest(xhr, xhrOptions, decryptionWorker, captionParser, segment, progressFn, doneFn) {
+ var activeXhrs = [];
+ var finishProcessingFn = waitForCompletion(activeXhrs, decryptionWorker, doneFn);
+
+ // optionally, request the decryption key
+ if (segment.key) {
+ var keyRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.key.resolvedUri,
+ responseType: 'arraybuffer'
+ });
+ var keyRequestCallback = handleKeyResponse(segment, finishProcessingFn);
+ var keyXhr = xhr(keyRequestOptions, keyRequestCallback);
+
+ activeXhrs.push(keyXhr);
+ }
+
+ // optionally, request the associated media init segment
+ if (segment.map && !segment.map.bytes) {
+ var initSegmentOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.map.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment.map)
+ });
+ var initSegmentRequestCallback = handleInitSegmentResponse(segment, captionParser, finishProcessingFn);
+ var initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);
+
+ activeXhrs.push(initSegmentXhr);
+ }
+
+ var segmentRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment)
+ });
+ var segmentRequestCallback = handleSegmentResponse(segment, captionParser, finishProcessingFn);
+ var segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);
+
+ segmentXhr.addEventListener('progress', handleProgress(segment, progressFn));
+ activeXhrs.push(segmentXhr);
+
+ return function () {
+ return abortAll(activeXhrs);
+ };
+ };
+
+ // Utilities
+
+ /**
+ * Returns the CSS value for the specified property on an element
+ * using `getComputedStyle`. Firefox has a long-standing issue where
+ * getComputedStyle() may return null when running in an iframe with
+ * `display: none`.
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ * @param {HTMLElement} el the htmlelement to work on
+ * @param {string} the proprety to get the style for
+ */
+ var safeGetComputedStyle = function safeGetComputedStyle(el, property) {
+ var result = void 0;
+
+ if (!el) {
+ return '';
+ }
+
+ result = window_1.getComputedStyle(el);
+ if (!result) {
+ return '';
+ }
+
+ return result[property];
+ };
+
+ /**
+ * Resuable stable sort function
+ *
+ * @param {Playlists} array
+ * @param {Function} sortFn Different comparators
+ * @function stableSort
+ */
+ var stableSort = function stableSort(array, sortFn) {
+ var newArray = array.slice();
+
+ array.sort(function (left, right) {
+ var cmp = sortFn(left, right);
+
+ if (cmp === 0) {
+ return newArray.indexOf(left) - newArray.indexOf(right);
+ }
+ return cmp;
+ });
+ };
+
+ /**
+ * A comparator function to sort two playlist object by bandwidth.
+ *
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the bandwidth attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the bandwidth of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+ var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {
+ var leftBandwidth = void 0;
+ var rightBandwidth = void 0;
+
+ if (left.attributes.BANDWIDTH) {
+ leftBandwidth = left.attributes.BANDWIDTH;
+ }
+ leftBandwidth = leftBandwidth || window_1.Number.MAX_VALUE;
+ if (right.attributes.BANDWIDTH) {
+ rightBandwidth = right.attributes.BANDWIDTH;
+ }
+ rightBandwidth = rightBandwidth || window_1.Number.MAX_VALUE;
+
+ return leftBandwidth - rightBandwidth;
+ };
+
+ /**
+ * A comparator function to sort two playlist object by resolution (width).
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the resolution.width attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the resolution.width of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+ var comparePlaylistResolution = function comparePlaylistResolution(left, right) {
+ var leftWidth = void 0;
+ var rightWidth = void 0;
+
+ if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
+ leftWidth = left.attributes.RESOLUTION.width;
+ }
+
+ leftWidth = leftWidth || window_1.Number.MAX_VALUE;
+
+ if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+ rightWidth = right.attributes.RESOLUTION.width;
+ }
+
+ rightWidth = rightWidth || window_1.Number.MAX_VALUE;
+
+ // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
+ // have the same media dimensions/ resolution
+ if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
+ return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
+ }
+ return leftWidth - rightWidth;
+ };
+
+ /**
+ * Chooses the appropriate media playlist based on bandwidth and player size
+ *
+ * @param {Object} master
+ * Object representation of the master manifest
+ * @param {Number} playerBandwidth
+ * Current calculated bandwidth of the player
+ * @param {Number} playerWidth
+ * Current width of the player element
+ * @param {Number} playerHeight
+ * Current height of the player element
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+ var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight) {
+ // convert the playlists to an intermediary representation to make comparisons easier
+ var sortedPlaylistReps = master.playlists.map(function (playlist) {
+ var width = void 0;
+ var height = void 0;
+ var bandwidth = void 0;
+
+ width = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
+ height = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
+ bandwidth = playlist.attributes.BANDWIDTH;
+
+ bandwidth = bandwidth || window_1.Number.MAX_VALUE;
+
+ return {
+ bandwidth: bandwidth,
+ width: width,
+ height: height,
+ playlist: playlist
+ };
+ });
+
+ stableSort(sortedPlaylistReps, function (left, right) {
+ return left.bandwidth - right.bandwidth;
+ });
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+ sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isIncompatible(rep.playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return Playlist.isEnabled(rep.playlist);
+ });
+
+ if (!enabledPlaylistReps.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isDisabled(rep.playlist);
+ });
+ }
+
+ // filter out any variant that has greater effective bitrate
+ // than the current estimated bandwidth
+ var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {
+ return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;
+ });
+
+ var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1];
+
+ // get all of the renditions with the same (highest) bandwidth
+ // and then taking the very first element
+ var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ // filter out playlists without resolution information
+ var haveResolution = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.width && rep.height;
+ });
+
+ // sort variants by resolution
+ stableSort(haveResolution, function (left, right) {
+ return left.width - right.width;
+ });
+
+ // if we have the exact resolution as the player use it
+ var resolutionBestRepList = haveResolution.filter(function (rep) {
+ return rep.width === playerWidth && rep.height === playerHeight;
+ });
+
+ highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1];
+ // ensure that we pick the highest bandwidth variant that have exact resolution
+ var resolutionBestRep = resolutionBestRepList.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ var resolutionPlusOneList = void 0;
+ var resolutionPlusOneSmallest = void 0;
+ var resolutionPlusOneRep = void 0;
+
+ // find the smallest variant that is larger than the player
+ // if there is no match of exact resolution
+ if (!resolutionBestRep) {
+ resolutionPlusOneList = haveResolution.filter(function (rep) {
+ return rep.width > playerWidth || rep.height > playerHeight;
+ });
+
+ // find all the variants have the same smallest resolution
+ resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {
+ return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;
+ });
+
+ // ensure that we also pick the highest bandwidth variant that
+ // is just-larger-than the video player
+ highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
+ resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+ }
+
+ // fallback chain of variants
+ var chosenRep = resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+
+ return chosenRep ? chosenRep.playlist : null;
+ };
+
+ // Playlist Selectors
+
+ /**
+ * Chooses the appropriate media playlist based on the most recent
+ * bandwidth estimate and the player size.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+ var lastBandwidthSelector = function lastBandwidthSelector() {
+ return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10), parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10));
+ };
+
+ /**
+ * Chooses the appropriate media playlist based on the potential to rebuffer
+ *
+ * @param {Object} settings
+ * Object of information required to use this selector
+ * @param {Object} settings.master
+ * Object representation of the master manifest
+ * @param {Number} settings.currentTime
+ * The current time of the player
+ * @param {Number} settings.bandwidth
+ * Current measured bandwidth
+ * @param {Number} settings.duration
+ * Duration of the media
+ * @param {Number} settings.segmentDuration
+ * Segment duration to be used in round trip time calculations
+ * @param {Number} settings.timeUntilRebuffer
+ * Time left in seconds until the player has to rebuffer
+ * @param {Number} settings.currentTimeline
+ * The current timeline segments are being loaded from
+ * @param {SyncController} settings.syncController
+ * SyncController for determining if we have a sync point for a given playlist
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The highest bandwidth playlist with the least amount of rebuffering
+ * {Number} return.rebufferingImpact
+ * The amount of time in seconds switching to this playlist will rebuffer. A
+ * negative value means that switching will cause zero rebuffering.
+ */
+ var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {
+ var master = settings.master,
+ currentTime = settings.currentTime,
+ bandwidth = settings.bandwidth,
+ duration$$1 = settings.duration,
+ segmentDuration = settings.segmentDuration,
+ timeUntilRebuffer = settings.timeUntilRebuffer,
+ currentTimeline = settings.currentTimeline,
+ syncController = settings.syncController;
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+
+ var compatiblePlaylists = master.playlists.filter(function (playlist) {
+ return !Playlist.isIncompatible(playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
+
+ if (!enabledPlaylists.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylists = compatiblePlaylists.filter(function (playlist) {
+ return !Playlist.isDisabled(playlist);
+ });
+ }
+
+ var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
+
+ var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {
+ var syncPoint = syncController.getSyncPoint(playlist, duration$$1, currentTimeline, currentTime);
+ // If there is no sync point for this playlist, switching to it will require a
+ // sync request first. This will double the request time
+ var numRequests = syncPoint ? 1 : 2;
+ var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
+ var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
+
+ return {
+ playlist: playlist,
+ rebufferingImpact: rebufferingImpact
+ };
+ });
+
+ var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {
+ return estimate.rebufferingImpact <= 0;
+ });
+
+ // Sort by bandwidth DESC
+ stableSort(noRebufferingPlaylists, function (a, b) {
+ return comparePlaylistBandwidth(b.playlist, a.playlist);
+ });
+
+ if (noRebufferingPlaylists.length) {
+ return noRebufferingPlaylists[0];
+ }
+
+ stableSort(rebufferingEstimates, function (a, b) {
+ return a.rebufferingImpact - b.rebufferingImpact;
+ });
+
+ return rebufferingEstimates[0] || null;
+ };
+
+ /**
+ * Chooses the appropriate media playlist, which in this case is the lowest bitrate
+ * one with video. If no renditions with video exist, return the lowest audio rendition.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The lowest bitrate playlist that contains a video codec. If no such rendition
+ * exists pick the lowest audio rendition.
+ */
+ var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations or playback errors
+ var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled);
+
+ // Sort ascending by bitrate
+ stableSort(playlists, function (a, b) {
+ return comparePlaylistBandwidth(a, b);
+ });
+
+ // Parse and assume that playlists with no video codec have no video
+ // (this is not necessarily true, although it is generally true).
+ //
+ // If an entire manifest has no valid videos everything will get filtered
+ // out.
+ var playlistsWithVideo = playlists.filter(function (playlist) {
+ return parseCodecs(playlist.attributes.CODECS).videoCodec;
+ });
+
+ return playlistsWithVideo[0] || null;
+ };
+
+ /**
+ * Create captions text tracks on video.js if they do not exist
+ *
+ * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+ * @param {Object} tech the video.js tech
+ * @param {Object} captionStreams the caption streams to create
+ * @private
+ */
+ var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStreams) {
+ for (var trackId in captionStreams) {
+ if (!inbandTextTracks[trackId]) {
+ tech.trigger({ type: 'usage', name: 'hls-608' });
+ var track = tech.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ inbandTextTracks[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ inbandTextTracks[trackId] = tech.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ };
+
+ var addCaptionData = function addCaptionData(_ref) {
+ var inbandTextTracks = _ref.inbandTextTracks,
+ captionArray = _ref.captionArray,
+ timestampOffset = _ref.timestampOffset;
+
+ if (!captionArray) {
+ return;
+ }
+
+ var Cue = window.WebKitDataCue || window.VTTCue;
+
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+ var startTime = caption.startTime;
+ var endTime = caption.endTime;
+
+ if (!inbandTextTracks[track]) {
+ return;
+ }
+
+ startTime += timestampOffset;
+ endTime += timestampOffset;
+
+ inbandTextTracks[track].addCue(new Cue(startTime, endTime, caption.text));
+ });
+ };
+
+ /**
+ * @file segment-loader.js
+ */
+
+ // in ms
+ var CHECK_BUFFER_DELAY = 500;
+
+ /**
+ * Determines if we should call endOfStream on the media source based
+ * on the state of the buffer or if appened segment was the final
+ * segment in the playlist.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Object} mediaSource the MediaSource object
+ * @param {Number} segmentIndex the index of segment we last appended
+ * @returns {Boolean} do we need to call endOfStream on the MediaSource
+ */
+ var detectEndOfStream = function detectEndOfStream(playlist, mediaSource, segmentIndex) {
+ if (!playlist || !mediaSource) {
+ return false;
+ }
+
+ var segments = playlist.segments;
+
+ // determine a few boolean values to help make the branch below easier
+ // to read
+ var appendedLastSegment = segmentIndex === segments.length;
+
+ // if we've buffered to the end of the video, we need to call endOfStream
+ // so that MediaSources can trigger the `ended` event when it runs out of
+ // buffered data instead of waiting for me
+ return playlist.endList && mediaSource.readyState === 'open' && appendedLastSegment;
+ };
+
+ var finite = function finite(num) {
+ return typeof num === 'number' && isFinite(num);
+ };
+
+ var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, newSegmentMedia) {
+ // Although these checks should most likely cover non 'main' types, for now it narrows
+ // the scope of our checks.
+ if (loaderType !== 'main' || !startingMedia || !newSegmentMedia) {
+ return null;
+ }
+
+ if (!newSegmentMedia.containsAudio && !newSegmentMedia.containsVideo) {
+ return 'Neither audio nor video found in segment.';
+ }
+
+ if (startingMedia.containsVideo && !newSegmentMedia.containsVideo) {
+ return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ if (!startingMedia.containsVideo && newSegmentMedia.containsVideo) {
+ return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ return null;
+ };
+
+ /**
+ * Calculates a time value that is safe to remove from the back buffer without interupting
+ * playback.
+ *
+ * @param {TimeRange} seekable
+ * The current seekable range
+ * @param {Number} currentTime
+ * The current time of the player
+ * @param {Number} targetDuration
+ * The target duration of the current playlist
+ * @return {Number}
+ * Time that is safe to remove from the back buffer without interupting playback
+ */
+ var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable$$1, currentTime, targetDuration) {
+ var removeToTime = void 0;
+
+ if (seekable$$1.length && seekable$$1.start(0) > 0 && seekable$$1.start(0) < currentTime) {
+ // If we have a seekable range use that as the limit for what can be removed safely
+ removeToTime = seekable$$1.start(0);
+ } else {
+ // otherwise remove anything older than 30 seconds before the current play head
+ removeToTime = currentTime - 30;
+ }
+
+ // Don't allow removing from the buffer within target duration of current time
+ // to avoid the possibility of removing the GOP currently being played which could
+ // cause playback stalls.
+ return Math.min(removeToTime, currentTime - targetDuration);
+ };
+
+ var segmentInfoString = function segmentInfoString(segmentInfo) {
+ var _segmentInfo$segment = segmentInfo.segment,
+ start = _segmentInfo$segment.start,
+ end = _segmentInfo$segment.end,
+ _segmentInfo$playlist = segmentInfo.playlist,
+ seq = _segmentInfo$playlist.mediaSequence,
+ id = _segmentInfo$playlist.id,
+ _segmentInfo$playlist2 = _segmentInfo$playlist.segments,
+ segments = _segmentInfo$playlist2 === undefined ? [] : _segmentInfo$playlist2,
+ index = segmentInfo.mediaIndex,
+ timeline = segmentInfo.timeline;
+
+ return ['appending [' + index + '] of [' + seq + ', ' + (seq + segments.length) + '] from playlist [' + id + ']', '[' + start + ' => ' + end + '] in timeline [' + timeline + ']'].join(' ');
+ };
+
+ /**
+ * An object that manages segment loading and appending.
+ *
+ * @class SegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+ var SegmentLoader = function (_videojs$EventTarget) {
+ inherits$3(SegmentLoader, _videojs$EventTarget);
+
+ function SegmentLoader(settings) {
+ classCallCheck$3(this, SegmentLoader);
+
+ // check pre-conditions
+ var _this = possibleConstructorReturn$3(this, (SegmentLoader.__proto__ || Object.getPrototypeOf(SegmentLoader)).call(this));
+
+ if (!settings) {
+ throw new TypeError('Initialization settings are required');
+ }
+ if (typeof settings.currentTime !== 'function') {
+ throw new TypeError('No currentTime getter specified');
+ }
+ if (!settings.mediaSource) {
+ throw new TypeError('No MediaSource specified');
+ }
+ // public properties
+ _this.bandwidth = settings.bandwidth;
+ _this.throughput = { rate: 0, count: 0 };
+ _this.roundTrip = NaN;
+ _this.resetStats_();
+ _this.mediaIndex = null;
+
+ // private settings
+ _this.hasPlayed_ = settings.hasPlayed;
+ _this.currentTime_ = settings.currentTime;
+ _this.seekable_ = settings.seekable;
+ _this.seeking_ = settings.seeking;
+ _this.duration_ = settings.duration;
+ _this.mediaSource_ = settings.mediaSource;
+ _this.hls_ = settings.hls;
+ _this.loaderType_ = settings.loaderType;
+ _this.startingMedia_ = void 0;
+ _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
+ _this.goalBufferLength_ = settings.goalBufferLength;
+ _this.sourceType_ = settings.sourceType;
+ _this.inbandTextTracks_ = settings.inbandTextTracks;
+ _this.state_ = 'INIT';
+
+ // private instance variables
+ _this.checkBufferTimeout_ = null;
+ _this.error_ = void 0;
+ _this.currentTimeline_ = -1;
+ _this.pendingSegment_ = null;
+ _this.mimeType_ = null;
+ _this.sourceUpdater_ = null;
+ _this.xhrOptions_ = null;
+
+ // Fragmented mp4 playback
+ _this.activeInitSegmentId_ = null;
+ _this.initSegments_ = {};
+ // Fmp4 CaptionParser
+ _this.captionParser_ = new mp4_6();
+
+ _this.decrypter_ = settings.decrypter;
+
+ // Manages the tracking and generation of sync-points, mappings
+ // between a time in the display time and a segment index within
+ // a playlist
+ _this.syncController_ = settings.syncController;
+ _this.syncPoint_ = {
+ segmentIndex: 0,
+ time: 0
+ };
+
+ _this.syncController_.on('syncinfoupdate', function () {
+ return _this.trigger('syncinfoupdate');
+ });
+
+ _this.mediaSource_.addEventListener('sourceopen', function () {
+ return _this.ended_ = false;
+ });
+
+ // ...for determining the fetch location
+ _this.fetchAtBuffer_ = false;
+
+ _this.logger_ = logger('SegmentLoader[' + _this.loaderType_ + ']');
+
+ Object.defineProperty(_this, 'state', {
+ get: function get$$1() {
+ return this.state_;
+ },
+ set: function set$$1(newState) {
+ if (newState !== this.state_) {
+ this.logger_(this.state_ + ' -> ' + newState);
+ this.state_ = newState;
+ }
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * reset all of our media stats
+ *
+ * @private
+ */
+
+ createClass$2(SegmentLoader, [{
+ key: 'resetStats_',
+ value: function resetStats_() {
+ this.mediaBytesTransferred = 0;
+ this.mediaRequests = 0;
+ this.mediaRequestsAborted = 0;
+ this.mediaRequestsTimedout = 0;
+ this.mediaRequestsErrored = 0;
+ this.mediaTransferDuration = 0;
+ this.mediaSecondsLoaded = 0;
+ }
+
+ /**
+ * dispose of the SegmentLoader and reset to the default state
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.state = 'DISPOSED';
+ this.pause();
+ this.abort_();
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.dispose();
+ }
+ this.resetStats_();
+ this.captionParser_.reset();
+ }
+
+ /**
+ * abort anything that is currently doing on with the SegmentLoader
+ * and reset to a default state
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.state !== 'WAITING') {
+ if (this.pendingSegment_) {
+ this.pendingSegment_ = null;
+ }
+ return;
+ }
+
+ this.abort_();
+
+ // We aborted the requests we were waiting on, so reset the loader's state to READY
+ // since we are no longer "waiting" on any requests. XHR callback is not always run
+ // when the request is aborted. This will prevent the loader from being stuck in the
+ // WAITING state indefinitely.
+ this.state = 'READY';
+
+ // don't wait for buffer check timeouts to begin fetching the
+ // next segment
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * abort all pending xhr requests and null any pending segements
+ *
+ * @private
+ */
+
+ }, {
+ key: 'abort_',
+ value: function abort_() {
+ if (this.pendingSegment_) {
+ this.pendingSegment_.abortRequests();
+ }
+
+ // clear out the segment being processed
+ this.pendingSegment_ = null;
+ }
+
+ /**
+ * set an error on the segment loader and null out any pending segements
+ *
+ * @param {Error} error the error to set on the SegmentLoader
+ * @return {Error} the error that was set or that is currently set
+ */
+
+ }, {
+ key: 'error',
+ value: function error(_error) {
+ if (typeof _error !== 'undefined') {
+ this.error_ = _error;
+ }
+
+ this.pendingSegment_ = null;
+ return this.error_;
+ }
+ }, {
+ key: 'endOfStream',
+ value: function endOfStream() {
+ this.ended_ = true;
+ this.pause();
+ this.trigger('ended');
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ }, {
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.sourceUpdater_) {
+ return videojs$1.createTimeRanges();
+ }
+
+ return this.sourceUpdater_.buffered();
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: map.bytes,
+ timescales: map.timescales,
+ videoTrackIds: map.videoTrackIds
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && (
+ // the source updater is created when init_ is called, so either having a
+ // source updater or being in the INIT state with a mimeType is enough
+ // to say we have all the needed configuration to start loading.
+ this.sourceUpdater_ || this.mimeType_ && this.state === 'INIT') && !this.paused();
+ }
+
+ /**
+ * load a playlist and start to fill the buffer
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ // un-pause
+ this.monitorBuffer_();
+
+ // if we don't have a playlist yet, keep waiting for one to be
+ // specified
+ if (!this.playlist_) {
+ return;
+ }
+
+ // not sure if this is the best place for this
+ this.syncController_.setDateTimeMapping(this.playlist_);
+
+ // if all the configuration is ready, initialize and begin loading
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ // if we're in the middle of processing a segment already, don't
+ // kick off an additional segment request
+ if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
+ return;
+ }
+
+ this.state = 'READY';
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.sourceUpdater_ = new SourceUpdater(this.mediaSource_, this.mimeType_, this.loaderType_, this.sourceBufferEmitter_);
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * set a playlist on the segment loader
+ *
+ * @param {PlaylistLoader} media the playlist to set on the segment loader
+ */
+
+ }, {
+ key: 'playlist',
+ value: function playlist(newPlaylist) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ if (!newPlaylist) {
+ return;
+ }
+
+ var oldPlaylist = this.playlist_;
+ var segmentInfo = this.pendingSegment_;
+
+ this.playlist_ = newPlaylist;
+ this.xhrOptions_ = options;
+
+ // when we haven't started playing yet, the start of a live playlist
+ // is always our zero-time so force a sync update each time the playlist
+ // is refreshed from the server
+ if (!this.hasPlayed_()) {
+ newPlaylist.syncInfo = {
+ mediaSequence: newPlaylist.mediaSequence,
+ time: 0
+ };
+ }
+
+ var oldId = oldPlaylist ? oldPlaylist.id : null;
+
+ this.logger_('playlist update [' + oldId + ' => ' + newPlaylist.id + ']');
+
+ // in VOD, this is always a rendition switch (or we updated our syncInfo above)
+ // in LIVE, we always want to update with new playlists (including refreshes)
+ this.trigger('syncinfoupdate');
+
+ // if we were unpaused but waiting for a playlist, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
+ if (this.mediaIndex !== null) {
+ // we must "resync" the segment loader when we switch renditions and
+ // the segment loader is already synced to the previous rendition
+ this.resyncLoader();
+ }
+
+ // the rest of this function depends on `oldPlaylist` being defined
+ return;
+ }
+
+ // we reloaded the same playlist so we are in a live scenario
+ // and we will likely need to adjust the mediaIndex
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ this.logger_('live window shift [' + mediaSequenceDiff + ']');
+
+ // update the mediaIndex on the SegmentLoader
+ // this is important because we can abort a request and this value must be
+ // equal to the last appended mediaIndex
+ if (this.mediaIndex !== null) {
+ this.mediaIndex -= mediaSequenceDiff;
+ }
+
+ // update the mediaIndex on the SegmentInfo object
+ // this is important because we will update this.mediaIndex with this value
+ // in `handleUpdateEnd_` after the segment has been successfully appended
+ if (segmentInfo) {
+ segmentInfo.mediaIndex -= mediaSequenceDiff;
+
+ // we need to update the referenced segment so that timing information is
+ // saved for the new playlist's segment, however, if the segment fell off the
+ // playlist, we can leave the old reference and just lose the timing info
+ if (segmentInfo.mediaIndex >= 0) {
+ segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
+ }
+ }
+
+ this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
+ }
+
+ /**
+ * Prevent the loader from fetching additional segments. If there
+ * is a segment request outstanding, it will finish processing
+ * before the loader halts. A segment loader can be unpaused by
+ * calling load().
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ if (this.checkBufferTimeout_) {
+ window_1.clearTimeout(this.checkBufferTimeout_);
+
+ this.checkBufferTimeout_ = null;
+ }
+ }
+
+ /**
+ * Returns whether the segment loader is fetching additional
+ * segments when given the opportunity. This property can be
+ * modified through calls to pause() and load().
+ */
+
+ }, {
+ key: 'paused',
+ value: function paused() {
+ return this.checkBufferTimeout_ === null;
+ }
+
+ /**
+ * create/set the following mimetype on the SourceBuffer through a
+ * SourceUpdater
+ *
+ * @param {String} mimeType the mime type string to use
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer
+ * is added to the media source
+ */
+
+ }, {
+ key: 'mimeType',
+ value: function mimeType(_mimeType, sourceBufferEmitter) {
+ if (this.mimeType_) {
+ return;
+ }
+
+ this.mimeType_ = _mimeType;
+ this.sourceBufferEmitter_ = sourceBufferEmitter;
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+ }
+
+ /**
+ * Delete all the buffered data and reset the SegmentLoader
+ * @param {Function} [done] an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'resetEverything',
+ value: function resetEverything(done) {
+ this.ended_ = false;
+ this.resetLoader();
+ this.remove(0, this.duration_(), done);
+ // clears fmp4 captions
+ this.captionParser_.clearAllCaptions();
+ this.trigger('reseteverything');
+ }
+
+ /**
+ * Force the SegmentLoader to resync and start loading around the currentTime instead
+ * of starting at the end of the buffer
+ *
+ * Useful for fast quality changes
+ */
+
+ }, {
+ key: 'resetLoader',
+ value: function resetLoader() {
+ this.fetchAtBuffer_ = false;
+ this.resyncLoader();
+ }
+
+ /**
+ * Force the SegmentLoader to restart synchronization and make a conservative guess
+ * before returning to the simple walk-forward method
+ */
+
+ }, {
+ key: 'resyncLoader',
+ value: function resyncLoader() {
+ this.mediaIndex = null;
+ this.syncPoint_ = null;
+ this.abort();
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ * @param {Function} [done] - an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end, done) {
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.remove(start, end, done);
+ }
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ if (this.inbandTextTracks_) {
+ for (var id in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[id]);
+ }
+ }
+ }
+
+ /**
+ * (re-)schedule monitorBufferTick_ to run as soon as possible
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBuffer_',
+ value: function monitorBuffer_() {
+ if (this.checkBufferTimeout_) {
+ window_1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window_1.setTimeout(this.monitorBufferTick_.bind(this), 1);
+ }
+
+ /**
+ * As long as the SegmentLoader is in the READY state, periodically
+ * invoke fillBuffer_().
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBufferTick_',
+ value: function monitorBufferTick_() {
+ if (this.state === 'READY') {
+ this.fillBuffer_();
+ }
+
+ if (this.checkBufferTimeout_) {
+ window_1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window_1.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ if (this.sourceUpdater_.updating()) {
+ return;
+ }
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ var isEndOfStream = detectEndOfStream(this.playlist_, this.mediaSource_, segmentInfo.mediaIndex);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ return;
+ }
+
+ if (segmentInfo.mediaIndex === this.playlist_.segments.length - 1 && this.mediaSource_.readyState === 'ended' && !this.seeking_()) {
+ return;
+ }
+
+ // We will need to change timestampOffset of the sourceBuffer if either of
+ // the following conditions are true:
+ // - The segment.timeline !== this.currentTimeline
+ // (we are crossing a discontinuity somehow)
+ // - The "timestampOffset" for the start of this segment is less than
+ // the currently set timestampOffset
+ // Also, clear captions if we are crossing a discontinuity boundary
+ if (segmentInfo.timeline !== this.currentTimeline_ || segmentInfo.startOfSegment !== null && segmentInfo.startOfSegment < this.sourceUpdater_.timestampOffset()) {
+ this.syncController_.reset();
+ segmentInfo.timestampOffset = segmentInfo.startOfSegment;
+ this.captionParser_.clearAllCaptions();
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Determines what segment request should be made, given current playback
+ * state.
+ *
+ * @param {TimeRanges} buffered - the state of the buffer
+ * @param {Object} playlist - the playlist object to fetch segments from
+ * @param {Number} mediaIndex - the previous mediaIndex fetched or null
+ * @param {Boolean} hasPlayed - a flag indicating whether we have played or not
+ * @param {Number} currentTime - the playback position in seconds
+ * @param {Object} syncPoint - a segment info object that describes the
+ * @returns {Object} a segment request object that describes the segment to load
+ */
+
+ }, {
+ key: 'checkBuffer_',
+ value: function checkBuffer_(buffered, playlist, mediaIndex, hasPlayed, currentTime, syncPoint) {
+ var lastBufferedEnd = 0;
+ var startOfSegment = void 0;
+
+ if (buffered.length) {
+ lastBufferedEnd = buffered.end(buffered.length - 1);
+ }
+
+ var bufferedTime = Math.max(0, lastBufferedEnd - currentTime);
+
+ if (!playlist.segments.length) {
+ return null;
+ }
+
+ // if there is plenty of content buffered, and the video has
+ // been played before relax for awhile
+ if (bufferedTime >= this.goalBufferLength_()) {
+ return null;
+ }
+
+ // if the video has not yet played once, and we already have
+ // one segment downloaded do nothing
+ if (!hasPlayed && bufferedTime >= 1) {
+ return null;
+ }
+
+ // When the syncPoint is null, there is no way of determining a good
+ // conservative segment index to fetch from
+ // The best thing to do here is to get the kind of sync-point data by
+ // making a request
+ if (syncPoint === null) {
+ mediaIndex = this.getSyncSegmentCandidate_(playlist);
+ return this.generateSegmentInfo_(playlist, mediaIndex, null, true);
+ }
+
+ // Under normal playback conditions fetching is a simple walk forward
+ if (mediaIndex !== null) {
+ var segment = playlist.segments[mediaIndex];
+
+ if (segment && segment.end) {
+ startOfSegment = segment.end;
+ } else {
+ startOfSegment = lastBufferedEnd;
+ }
+ return this.generateSegmentInfo_(playlist, mediaIndex + 1, startOfSegment, false);
+ }
+
+ // There is a sync-point but the lack of a mediaIndex indicates that
+ // we need to make a good conservative guess about which segment to
+ // fetch
+ if (this.fetchAtBuffer_) {
+ // Find the segment containing the end of the buffer
+ var mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, lastBufferedEnd, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = mediaSourceInfo.mediaIndex;
+ startOfSegment = mediaSourceInfo.startTime;
+ } else {
+ // Find the segment containing currentTime
+ var _mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, currentTime, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = _mediaSourceInfo.mediaIndex;
+ startOfSegment = _mediaSourceInfo.startTime;
+ }
+
+ return this.generateSegmentInfo_(playlist, mediaIndex, startOfSegment, false);
+ }
+
+ /**
+ * The segment loader has no recourse except to fetch a segment in the
+ * current playlist and use the internal timestamps in that segment to
+ * generate a syncPoint. This function returns a good candidate index
+ * for that process.
+ *
+ * @param {Object} playlist - the playlist object to look for a
+ * @returns {Number} An index of a segment from the playlist to load
+ */
+
+ }, {
+ key: 'getSyncSegmentCandidate_',
+ value: function getSyncSegmentCandidate_(playlist) {
+ var _this2 = this;
+
+ if (this.currentTimeline_ === -1) {
+ return 0;
+ }
+
+ var segmentIndexArray = playlist.segments.map(function (s, i) {
+ return {
+ timeline: s.timeline,
+ segmentIndex: i
+ };
+ }).filter(function (s) {
+ return s.timeline === _this2.currentTimeline_;
+ });
+
+ if (segmentIndexArray.length) {
+ return segmentIndexArray[Math.min(segmentIndexArray.length - 1, 1)].segmentIndex;
+ }
+
+ return Math.max(playlist.segments.length - 1, 0);
+ }
+ }, {
+ key: 'generateSegmentInfo_',
+ value: function generateSegmentInfo_(playlist, mediaIndex, startOfSegment, isSyncRequest) {
+ if (mediaIndex < 0 || mediaIndex >= playlist.segments.length) {
+ return null;
+ }
+
+ var segment = playlist.segments[mediaIndex];
+
+ return {
+ requestId: 'segment-loader-' + Math.random(),
+ // resolve the segment URL relative to the playlist
+ uri: segment.resolvedUri,
+ // the segment's mediaIndex at the time it was requested
+ mediaIndex: mediaIndex,
+ // whether or not to update the SegmentLoader's state with this
+ // segment's mediaIndex
+ isSyncRequest: isSyncRequest,
+ startOfSegment: startOfSegment,
+ // the segment's playlist
+ playlist: playlist,
+ // unencrypted bytes of the segment
+ bytes: null,
+ // when a key is defined for this segment, the encrypted bytes
+ encryptedBytes: null,
+ // The target timestampOffset for this segment when we append it
+ // to the source buffer
+ timestampOffset: null,
+ // The timeline that the segment is in
+ timeline: segment.timeline,
+ // The expected duration of the segment in seconds
+ duration: segment.duration,
+ // retain the segment in case the playlist updates while doing an async process
+ segment: segment
+ };
+ }
+
+ /**
+ * Determines if the network has enough bandwidth to complete the current segment
+ * request in a timely manner. If not, the request will be aborted early and bandwidth
+ * updated to trigger a playlist switch.
+ *
+ * @param {Object} stats
+ * Object containing stats about the request timing and size
+ * @return {Boolean} True if the request was aborted, false otherwise
+ * @private
+ */
+
+ }, {
+ key: 'abortRequestEarly_',
+ value: function abortRequestEarly_(stats) {
+ if (this.hls_.tech_.paused() ||
+ // Don't abort if the current playlist is on the lowestEnabledRendition
+ // TODO: Replace using timeout with a boolean indicating whether this playlist is
+ // the lowestEnabledRendition.
+ !this.xhrOptions_.timeout ||
+ // Don't abort if we have no bandwidth information to estimate segment sizes
+ !this.playlist_.attributes.BANDWIDTH) {
+ return false;
+ }
+
+ // Wait at least 1 second since the first byte of data has been received before
+ // using the calculated bandwidth from the progress event to allow the bitrate
+ // to stabilize
+ if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
+ return false;
+ }
+
+ var currentTime = this.currentTime_();
+ var measuredBandwidth = stats.bandwidth;
+ var segmentDuration = this.pendingSegment_.duration;
+
+ var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived);
+
+ // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
+ // if we are only left with less than 1 second when the request completes.
+ // A negative timeUntilRebuffering indicates we are already rebuffering
+ var timeUntilRebuffer$$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.hls_.tech_.playbackRate()) - 1;
+
+ // Only consider aborting early if the estimated time to finish the download
+ // is larger than the estimated time until the player runs out of forward buffer
+ if (requestTimeRemaining <= timeUntilRebuffer$$1) {
+ return false;
+ }
+
+ var switchCandidate = minRebufferMaxBandwidthSelector({
+ master: this.hls_.playlists.master,
+ currentTime: currentTime,
+ bandwidth: measuredBandwidth,
+ duration: this.duration_(),
+ segmentDuration: segmentDuration,
+ timeUntilRebuffer: timeUntilRebuffer$$1,
+ currentTimeline: this.currentTimeline_,
+ syncController: this.syncController_
+ });
+
+ if (!switchCandidate) {
+ return;
+ }
+
+ var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$$1;
+
+ var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
+
+ var minimumTimeSaving = 0.5;
+
+ // If we are already rebuffering, increase the amount of variance we add to the
+ // potential round trip time of the new request so that we are not too aggressive
+ // with switching to a playlist that might save us a fraction of a second.
+ if (timeUntilRebuffer$$1 <= TIME_FUDGE_FACTOR) {
+ minimumTimeSaving = 1;
+ }
+
+ if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
+ return false;
+ }
+
+ // set the bandwidth to that of the desired playlist being sure to scale by
+ // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
+ // don't trigger a bandwidthupdate as the bandwidth is artifial
+ this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
+ this.abort();
+ this.trigger('earlyabort');
+ return true;
+ }
+
+ /**
+ * XHR `progress` event handler
+ *
+ * @param {Event}
+ * The XHR `progress` event
+ * @param {Object} simpleSegment
+ * A simplified segment object copy
+ * @private
+ */
+
+ }, {
+ key: 'handleProgress_',
+ value: function handleProgress_(event, simpleSegment) {
+ if (!this.pendingSegment_ || simpleSegment.requestId !== this.pendingSegment_.requestId || this.abortRequestEarly_(simpleSegment.stats)) {
+ return;
+ }
+
+ this.trigger('progress');
+ }
+
+ /**
+ * load a specific segment from a request into the buffer
+ *
+ * @private
+ */
+
+ }, {
+ key: 'loadSegment_',
+ value: function loadSegment_(segmentInfo) {
+ this.state = 'WAITING';
+ this.pendingSegment_ = segmentInfo;
+ this.trimBackBuffer_(segmentInfo);
+
+ segmentInfo.abortRequests = mediaSegmentRequest(this.hls_.xhr, this.xhrOptions_, this.decrypter_, this.captionParser_, this.createSimplifiedSegmentObj_(segmentInfo),
+ // progress callback
+ this.handleProgress_.bind(this), this.segmentRequestFinished_.bind(this));
+ }
+
+ /**
+ * trim the back buffer so that we don't have too much data
+ * in the source buffer
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ */
+
+ }, {
+ key: 'trimBackBuffer_',
+ value: function trimBackBuffer_(segmentInfo) {
+ var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10);
+
+ // Chrome has a hard limit of 150MB of
+ // buffer and a very conservative "garbage collector"
+ // We manually clear out the old buffer to ensure
+ // we don't trigger the QuotaExceeded error
+ // on the source buffer during subsequent appends
+
+ if (removeToTime > 0) {
+ this.remove(0, removeToTime);
+ }
+ }
+
+ /**
+ * created a simplified copy of the segment object with just the
+ * information necessary to perform the XHR and decryption
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ * @returns {Object} a simplified segment object copy
+ */
+
+ }, {
+ key: 'createSimplifiedSegmentObj_',
+ value: function createSimplifiedSegmentObj_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var simpleSegment = {
+ resolvedUri: segment.resolvedUri,
+ byterange: segment.byterange,
+ requestId: segmentInfo.requestId
+ };
+
+ if (segment.key) {
+ // if the media sequence is greater than 2^32, the IV will be incorrect
+ // assuming 10s segments, that would be about 1300 years
+ var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
+
+ simpleSegment.key = {
+ resolvedUri: segment.key.resolvedUri,
+ iv: iv
+ };
+ }
+
+ if (segment.map) {
+ simpleSegment.map = this.initSegment(segment.map);
+ }
+
+ return simpleSegment;
+ }
+
+ /**
+ * Handle the callback from the segmentRequest function and set the
+ * associated SegmentLoader state and errors if necessary
+ *
+ * @private
+ */
+
+ }, {
+ key: 'segmentRequestFinished_',
+ value: function segmentRequestFinished_(error, simpleSegment) {
+ // every request counts as a media request even if it has been aborted
+ // or canceled due to a timeout
+ this.mediaRequests += 1;
+
+ if (simpleSegment.stats) {
+ this.mediaBytesTransferred += simpleSegment.stats.bytesReceived;
+ this.mediaTransferDuration += simpleSegment.stats.roundTripTime;
+ }
+
+ // The request was aborted and the SegmentLoader has already been reset
+ if (!this.pendingSegment_) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ // the request was aborted and the SegmentLoader has already started
+ // another request. this can happen when the timeout for an aborted
+ // request triggers due to a limitation in the XHR library
+ // do not count this as any sort of request or we risk double-counting
+ if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
+ return;
+ }
+
+ // an error occurred from the active pendingSegment_ so reset everything
+ if (error) {
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+
+ // the requests were aborted just record the aborted stat and exit
+ // this is not a true error condition and nothing corrective needs
+ // to be done
+ if (error.code === REQUEST_ERRORS.ABORTED) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ this.pause();
+
+ // the error is really just that at least one of the requests timed-out
+ // set the bandwidth to a very low value and trigger an ABR switch to
+ // take emergency action
+ if (error.code === REQUEST_ERRORS.TIMEOUT) {
+ this.mediaRequestsTimedout += 1;
+ this.bandwidth = 1;
+ this.roundTrip = NaN;
+ this.trigger('bandwidthupdate');
+ return;
+ }
+
+ // if control-flow has arrived here, then the error is real
+ // emit an error event to blacklist the current playlist
+ this.mediaRequestsErrored += 1;
+ this.error(error);
+ this.trigger('error');
+ return;
+ }
+
+ // the response was a success so set any bandwidth stats the request
+ // generated for ABR purposes
+ this.bandwidth = simpleSegment.stats.bandwidth;
+ this.roundTrip = simpleSegment.stats.roundTripTime;
+
+ // if this request included an initialization segment, save that data
+ // to the initSegment cache
+ if (simpleSegment.map) {
+ simpleSegment.map = this.initSegment(simpleSegment.map, true);
+ }
+
+ this.processSegmentResponse_(simpleSegment);
+ }
+
+ /**
+ * Move any important data from the simplified segment object
+ * back to the real segment object for future phases
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processSegmentResponse_',
+ value: function processSegmentResponse_(simpleSegment) {
+ var segmentInfo = this.pendingSegment_;
+
+ segmentInfo.bytes = simpleSegment.bytes;
+ if (simpleSegment.map) {
+ segmentInfo.segment.map.bytes = simpleSegment.map.bytes;
+ }
+
+ segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
+
+ // This has fmp4 captions, add them to text tracks
+ if (simpleSegment.fmp4Captions) {
+ createCaptionsTrackIfNotExists(this.inbandTextTracks_, this.hls_.tech_, simpleSegment.captionStreams);
+ addCaptionData({
+ inbandTextTracks: this.inbandTextTracks_,
+ captionArray: simpleSegment.fmp4Captions,
+ // fmp4s will not have a timestamp offset
+ timestampOffset: 0
+ });
+ // Reset stored captions since we added parsed
+ // captions to a text track at this point
+ this.captionParser_.clearParsedCaptions();
+ }
+
+ this.handleSegment_();
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var timingInfo = this.syncController_.probeSegmentInfo(segmentInfo);
+
+ // When we have our first timing info, determine what media types this loader is
+ // dealing with. Although we're maintaining extra state, it helps to preserve the
+ // separation of segment loader from the actual source buffers.
+ if (typeof this.startingMedia_ === 'undefined' && timingInfo && (
+ // Guard against cases where we're not getting timing info at all until we are
+ // certain that all streams will provide it.
+ timingInfo.containsAudio || timingInfo.containsVideo)) {
+ this.startingMedia_ = {
+ containsAudio: timingInfo.containsAudio,
+ containsVideo: timingInfo.containsVideo
+ };
+ }
+
+ var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.startingMedia_, timingInfo);
+
+ if (illegalMediaSwitchError) {
+ this.error({
+ message: illegalMediaSwitchError,
+ blacklistDuration: Infinity
+ });
+ this.trigger('error');
+ return;
+ }
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ if (segmentInfo.timestampOffset !== null && segmentInfo.timestampOffset !== this.sourceUpdater_.timestampOffset()) {
+ this.sourceUpdater_.timestampOffset(segmentInfo.timestampOffset);
+ // fired when a timestamp offset is set in HLS (can also identify discontinuities)
+ this.trigger('timestampoffset');
+ }
+
+ var timelineMapping = this.syncController_.mappingForTimeline(segmentInfo.timeline);
+
+ if (timelineMapping !== null) {
+ this.trigger({
+ type: 'segmenttimemapping',
+ mapping: timelineMapping
+ });
+ }
+
+ this.state = 'APPENDING';
+
+ // if the media initialization segment is changing, append it
+ // before the content segment
+ if (segment.map) {
+ var initId = initSegmentId(segment.map);
+
+ if (!this.activeInitSegmentId_ || this.activeInitSegmentId_ !== initId) {
+ var initSegment = this.initSegment(segment.map);
+
+ this.sourceUpdater_.appendBuffer(initSegment.bytes, function () {
+ _this3.activeInitSegmentId_ = initId;
+ });
+ }
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+ if (typeof segment.start === 'number' && typeof segment.end === 'number') {
+ this.mediaSecondsLoaded += segment.end - segment.start;
+ } else {
+ this.mediaSecondsLoaded += segment.duration;
+ }
+
+ this.logger_(segmentInfoString(segmentInfo));
+
+ this.sourceUpdater_.appendBuffer(segmentInfo.bytes, this.handleUpdateEnd_.bind(this));
+ }
+
+ /**
+ * callback to run when appendBuffer is finished. detects if we are
+ * in a good state to do things with the data we got, or if we need
+ * to wait for more
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleUpdateEnd_',
+ value: function handleUpdateEnd_() {
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var isWalkingForward = this.mediaIndex !== null;
+
+ this.pendingSegment_ = null;
+ this.recordThroughput_(segmentInfo);
+ this.addSegmentMetadataCue_(segmentInfo);
+
+ this.state = 'READY';
+
+ this.mediaIndex = segmentInfo.mediaIndex;
+ this.fetchAtBuffer_ = true;
+ this.currentTimeline_ = segmentInfo.timeline;
+
+ // We must update the syncinfo to recalculate the seekable range before
+ // the following conditional otherwise it may consider this a bad "guess"
+ // and attempt to resync when the post-update seekable window and live
+ // point would mean that this was the perfect segment to fetch
+ this.trigger('syncinfoupdate');
+
+ // If we previously appended a segment that ends more than 3 targetDurations before
+ // the currentTime_ that means that our conservative guess was too conservative.
+ // In that case, reset the loader state so that we try to use any information gained
+ // from the previous request to create a new, more accurate, sync-point.
+ if (segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3) {
+ this.resetEverything();
+ return;
+ }
+
+ // Don't do a rendition switch unless we have enough time to get a sync segment
+ // and conservatively guess
+ if (isWalkingForward) {
+ this.trigger('bandwidthupdate');
+ }
+ this.trigger('progress');
+
+ // any time an update finishes and the last segment is in the
+ // buffer, end the stream. this ensures the "ended" event will
+ // fire if playback reaches that point.
+ var isEndOfStream = detectEndOfStream(segmentInfo.playlist, this.mediaSource_, segmentInfo.mediaIndex + 1);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ }
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * Records the current throughput of the decrypt, transmux, and append
+ * portion of the semgment pipeline. `throughput.rate` is a the cumulative
+ * moving average of the throughput. `throughput.count` is the number of
+ * data points in the average.
+ *
+ * @private
+ * @param {Object} segmentInfo the object returned by loadSegment
+ */
+
+ }, {
+ key: 'recordThroughput_',
+ value: function recordThroughput_(segmentInfo) {
+ var rate = this.throughput.rate;
+ // Add one to the time to ensure that we don't accidentally attempt to divide
+ // by zero in the case where the throughput is ridiculously high
+ var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1;
+ // Multiply by 8000 to convert from bytes/millisecond to bits/second
+ var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000);
+
+ // This is just a cumulative moving average calculation:
+ // newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
+ this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
+ }
+
+ /**
+ * Adds a cue to the segment-metadata track with some metadata information about the
+ * segment
+ *
+ * @private
+ * @param {Object} segmentInfo
+ * the object returned by loadSegment
+ * @method addSegmentMetadataCue_
+ */
+
+ }, {
+ key: 'addSegmentMetadataCue_',
+ value: function addSegmentMetadataCue_(segmentInfo) {
+ if (!this.segmentMetadataTrack_) {
+ return;
+ }
+
+ var segment = segmentInfo.segment;
+ var start = segment.start;
+ var end = segment.end;
+
+ // Do not try adding the cue if the start and end times are invalid.
+ if (!finite(start) || !finite(end)) {
+ return;
+ }
+
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ var Cue = window_1.WebKitDataCue || window_1.VTTCue;
+ var value = {
+ bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
+ resolution: segmentInfo.playlist.attributes.RESOLUTION,
+ codecs: segmentInfo.playlist.attributes.CODECS,
+ byteLength: segmentInfo.byteLength,
+ uri: segmentInfo.uri,
+ timeline: segmentInfo.timeline,
+ playlist: segmentInfo.playlist.uri,
+ start: start,
+ end: end
+ };
+ var data = JSON.stringify(value);
+ var cue = new Cue(start, end, data);
+
+ // Attach the metadata to the value property of the cue to keep consistency between
+ // the differences of WebKitDataCue in safari and VTTCue in other browsers
+ cue.value = value;
+
+ this.segmentMetadataTrack_.addCue(cue);
+ }
+ }]);
+ return SegmentLoader;
+ }(videojs$1.EventTarget);
+
+ var uint8ToUtf8 = function uint8ToUtf8(uintArray) {
+ return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
+ };
+
+ /**
+ * @file vtt-segment-loader.js
+ */
+
+ var VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(function (char) {
+ return char.charCodeAt(0);
+ }));
+
+ /**
+ * An object that manages segment loading and appending.
+ *
+ * @class VTTSegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+ var VTTSegmentLoader = function (_SegmentLoader) {
+ inherits$3(VTTSegmentLoader, _SegmentLoader);
+
+ function VTTSegmentLoader(settings) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck$3(this, VTTSegmentLoader);
+
+ // SegmentLoader requires a MediaSource be specified or it will throw an error;
+ // however, VTTSegmentLoader has no need of a media source, so delete the reference
+ var _this = possibleConstructorReturn$3(this, (VTTSegmentLoader.__proto__ || Object.getPrototypeOf(VTTSegmentLoader)).call(this, settings, options));
+
+ _this.mediaSource_ = null;
+
+ _this.subtitlesTrack_ = null;
+ return _this;
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ createClass$2(VTTSegmentLoader, [{
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues.length) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var cues = this.subtitlesTrack_.cues;
+ var start = cues[0].startTime;
+ var end = cues[cues.length - 1].startTime;
+
+ return videojs$1.createTimeRanges([[start, end]]);
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ // append WebVTT line terminators to the media initialization segment if it exists
+ // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
+ // requires two or more WebVTT line terminators between the WebVTT header and the
+ // rest of the file
+ var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
+ var combinedSegment = new Uint8Array(combinedByteLength);
+
+ combinedSegment.set(map.bytes);
+ combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
+
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: combinedSegment
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && this.subtitlesTrack_ && !this.paused();
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * Set a subtitle track on the segment loader to add subtitles to
+ *
+ * @param {TextTrack=} track
+ * The text track to add loaded subtitles to
+ * @return {TextTrack}
+ * Returns the subtitles track
+ */
+
+ }, {
+ key: 'track',
+ value: function track(_track) {
+ if (typeof _track === 'undefined') {
+ return this.subtitlesTrack_;
+ }
+
+ this.subtitlesTrack_ = _track;
+
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+
+ return this.subtitlesTrack_;
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ removeCuesFromTrack(start, end, this.subtitlesTrack_);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ var _this2 = this;
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ segmentInfo = this.skipEmptySegments_(segmentInfo);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
+ // We don't have the timestamp offset that we need to sync subtitles.
+ // Rerun on a timestamp offset or user interaction.
+ var checkTimestampOffset = function checkTimestampOffset() {
+ _this2.state = 'READY';
+ if (!_this2.paused()) {
+ // if not paused, queue a buffer check as soon as possible
+ _this2.monitorBuffer_();
+ }
+ };
+
+ this.syncController_.one('timestampoffset', checkTimestampOffset);
+ this.state = 'WAITING_ON_TIMELINE';
+ return;
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Prevents the segment loader from requesting segments we know contain no subtitles
+ * by walking forward until we find the next segment that we don't know whether it is
+ * empty or not.
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @return {Object}
+ * a segment info object that describes the current segment
+ */
+
+ }, {
+ key: 'skipEmptySegments_',
+ value: function skipEmptySegments_(segmentInfo) {
+ while (segmentInfo && segmentInfo.segment.empty) {
+ segmentInfo = this.generateSegmentInfo_(segmentInfo.playlist, segmentInfo.mediaIndex + 1, segmentInfo.startOfSegment + segmentInfo.duration, segmentInfo.isSyncRequest);
+ }
+ return segmentInfo;
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_ || !this.subtitlesTrack_) {
+ this.state = 'READY';
+ return;
+ }
+
+ this.state = 'APPENDING';
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ if (typeof window_1.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {
+
+ var loadHandler = function loadHandler() {
+ _this3.handleSegment_();
+ };
+
+ this.state = 'WAITING_ON_VTTJS';
+ this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);
+ this.subtitlesTrack_.tech_.one('vttjserror', function () {
+ _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);
+ _this3.error({
+ message: 'Error loading vtt.js'
+ });
+ _this3.state = 'READY';
+ _this3.pause();
+ _this3.trigger('error');
+ });
+
+ return;
+ }
+
+ segment.requested = true;
+
+ try {
+ this.parseVTTCues_(segmentInfo);
+ } catch (e) {
+ this.error({
+ message: e.message
+ });
+ this.state = 'READY';
+ this.pause();
+ return this.trigger('error');
+ }
+
+ this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+
+ this.mediaSecondsLoaded += segment.duration;
+
+ if (segmentInfo.cues.length) {
+ // remove any overlapping cues to prevent doubling
+ this.remove(segmentInfo.cues[0].endTime, segmentInfo.cues[segmentInfo.cues.length - 1].endTime);
+ }
+
+ segmentInfo.cues.forEach(function (cue) {
+ _this3.subtitlesTrack_.addCue(cue);
+ });
+
+ this.handleUpdateEnd_();
+ }
+
+ /**
+ * Uses the WebVTT parser to parse the segment response
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @private
+ */
+
+ }, {
+ key: 'parseVTTCues_',
+ value: function parseVTTCues_(segmentInfo) {
+ var decoder = void 0;
+ var decodeBytesToString = false;
+
+ if (typeof window_1.TextDecoder === 'function') {
+ decoder = new window_1.TextDecoder('utf8');
+ } else {
+ decoder = window_1.WebVTT.StringDecoder();
+ decodeBytesToString = true;
+ }
+
+ var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, decoder);
+
+ segmentInfo.cues = [];
+ segmentInfo.timestampmap = { MPEGTS: 0, LOCAL: 0 };
+
+ parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
+ parser.ontimestampmap = function (map) {
+ return segmentInfo.timestampmap = map;
+ };
+ parser.onparsingerror = function (error) {
+ videojs$1.log.warn('Error encountered when parsing cues: ' + error.message);
+ };
+
+ if (segmentInfo.segment.map) {
+ var mapData = segmentInfo.segment.map.bytes;
+
+ if (decodeBytesToString) {
+ mapData = uint8ToUtf8(mapData);
+ }
+
+ parser.parse(mapData);
+ }
+
+ var segmentData = segmentInfo.bytes;
+
+ if (decodeBytesToString) {
+ segmentData = uint8ToUtf8(segmentData);
+ }
+
+ parser.parse(segmentData);
+ parser.flush();
+ }
+
+ /**
+ * Updates the start and end times of any cues parsed by the WebVTT parser using
+ * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
+ * from the SyncController
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @param {Object} mappingObj
+ * object containing a mapping from TS to media time
+ * @param {Object} playlist
+ * the playlist object containing the segment
+ * @private
+ */
+
+ }, {
+ key: 'updateTimeMapping_',
+ value: function updateTimeMapping_(segmentInfo, mappingObj, playlist) {
+ var segment = segmentInfo.segment;
+
+ if (!mappingObj) {
+ // If the sync controller does not have a mapping of TS to Media Time for the
+ // timeline, then we don't have enough information to update the cue
+ // start/end times
+ return;
+ }
+
+ if (!segmentInfo.cues.length) {
+ // If there are no cues, we also do not have enough information to figure out
+ // segment timing. Mark that the segment contains no cues so we don't re-request
+ // an empty segment.
+ segment.empty = true;
+ return;
+ }
+
+ var timestampmap = segmentInfo.timestampmap;
+ var diff = timestampmap.MPEGTS / 90000 - timestampmap.LOCAL + mappingObj.mapping;
+
+ segmentInfo.cues.forEach(function (cue) {
+ // First convert cue time to TS time using the timestamp-map provided within the vtt
+ cue.startTime += diff;
+ cue.endTime += diff;
+ });
+
+ if (!playlist.syncInfo) {
+ var firstStart = segmentInfo.cues[0].startTime;
+ var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
+
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: Math.min(firstStart, lastStart - segment.duration)
+ };
+ }
+ }
+ }]);
+ return VTTSegmentLoader;
+ }(SegmentLoader);
+
+ /**
+ * @file ad-cue-tags.js
+ */
+
+ /**
+ * Searches for an ad cue that overlaps with the given mediaTime
+ */
+ var findAdCue = function findAdCue(track, mediaTime) {
+ var cues = track.cues;
+
+ for (var i = 0; i < cues.length; i++) {
+ var cue = cues[i];
+
+ if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
+ return cue;
+ }
+ }
+ return null;
+ };
+
+ var updateAdCues = function updateAdCues(media, track) {
+ var offset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ if (!media.segments) {
+ return;
+ }
+
+ var mediaTime = offset;
+ var cue = void 0;
+
+ for (var i = 0; i < media.segments.length; i++) {
+ var segment = media.segments[i];
+
+ if (!cue) {
+ // Since the cues will span for at least the segment duration, adding a fudge
+ // factor of half segment duration will prevent duplicate cues from being
+ // created when timing info is not exact (e.g. cue start time initialized
+ // at 10.006677, but next call mediaTime is 10.003332 )
+ cue = findAdCue(track, mediaTime + segment.duration / 2);
+ }
+
+ if (cue) {
+ if ('cueIn' in segment) {
+ // Found a CUE-IN so end the cue
+ cue.endTime = mediaTime;
+ cue.adEndTime = mediaTime;
+ mediaTime += segment.duration;
+ cue = null;
+ continue;
+ }
+
+ if (mediaTime < cue.endTime) {
+ // Already processed this mediaTime for this cue
+ mediaTime += segment.duration;
+ continue;
+ }
+
+ // otherwise extend cue until a CUE-IN is found
+ cue.endTime += segment.duration;
+ } else {
+ if ('cueOut' in segment) {
+ cue = new window_1.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
+ cue.adStartTime = mediaTime;
+ // Assumes tag format to be
+ // #EXT-X-CUE-OUT:30
+ cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
+ track.addCue(cue);
+ }
+
+ if ('cueOutCont' in segment) {
+ // Entered into the middle of an ad cue
+ var adOffset = void 0;
+ var adTotal = void 0;
+
+ // Assumes tag formate to be
+ // #EXT-X-CUE-OUT-CONT:10/30
+
+ var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat);
+
+ var _segment$cueOutCont$s2 = slicedToArray$1(_segment$cueOutCont$s, 2);
+
+ adOffset = _segment$cueOutCont$s2[0];
+ adTotal = _segment$cueOutCont$s2[1];
+
+ cue = new window_1.VTTCue(mediaTime, mediaTime + segment.duration, '');
+ cue.adStartTime = mediaTime - adOffset;
+ cue.adEndTime = cue.adStartTime + adTotal;
+ track.addCue(cue);
+ }
+ }
+ mediaTime += segment.duration;
+ }
+ };
+
+ /**
+ * @file sync-controller.js
+ */
+
+ var tsprobe = tsInspector.inspect;
+
+ var syncPointStrategies = [
+ // Stategy "VOD": Handle the VOD-case where the sync-point is *always*
+ // the equivalence display-time 0 === segment-index 0
+ {
+ name: 'VOD',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (duration$$1 !== Infinity) {
+ var syncPoint = {
+ time: 0,
+ segmentIndex: 0
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+ },
+ // Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
+ {
+ name: 'ProgramDateTime',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (!syncController.datetimeToDisplayTime) {
+ return null;
+ }
+
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.dateTimeObject) {
+ var segmentTime = segment.dateTimeObject.getTime() / 1000;
+ var segmentStart = segmentTime + syncController.datetimeToDisplayTime;
+ var distance = Math.abs(currentTime - segmentStart);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ lastDistance = distance;
+ syncPoint = {
+ time: segmentStart,
+ segmentIndex: i
+ };
+ }
+ }
+ return syncPoint;
+ }
+ },
+ // Stategy "Segment": We have a known time mapping for a timeline and a
+ // segment in the current timeline with timing data
+ {
+ name: 'Segment',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.timeline === currentTimeline && typeof segment.start !== 'undefined') {
+ var distance = Math.abs(currentTime - segment.start);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: segment.start,
+ segmentIndex: i
+ };
+ }
+ }
+ }
+ return syncPoint;
+ }
+ },
+ // Stategy "Discontinuity": We have a discontinuity with a known
+ // display-time
+ {
+ name: 'Discontinuity',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoint = null;
+
+ currentTime = currentTime || 0;
+
+ if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ var lastDistance = null;
+
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var discontinuitySync = syncController.discontinuities[discontinuity];
+
+ if (discontinuitySync) {
+ var distance = Math.abs(currentTime - discontinuitySync.time);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: discontinuitySync.time,
+ segmentIndex: segmentIndex
+ };
+ }
+ }
+ }
+ }
+ return syncPoint;
+ }
+ },
+ // Stategy "Playlist": We have a playlist with a known mapping of
+ // segment index to display time
+ {
+ name: 'Playlist',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (playlist.syncInfo) {
+ var syncPoint = {
+ time: playlist.syncInfo.time,
+ segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+ }];
+
+ var SyncController = function (_videojs$EventTarget) {
+ inherits$3(SyncController, _videojs$EventTarget);
+
+ function SyncController() {
+ classCallCheck$3(this, SyncController);
+
+ // Segment Loader state variables...
+ // ...for synching across variants
+ var _this = possibleConstructorReturn$3(this, (SyncController.__proto__ || Object.getPrototypeOf(SyncController)).call(this));
+
+ _this.inspectCache_ = undefined;
+
+ // ...for synching across variants
+ _this.timelines = [];
+ _this.discontinuities = [];
+ _this.datetimeToDisplayTime = null;
+
+ _this.logger_ = logger('SyncController');
+ return _this;
+ }
+
+ /**
+ * Find a sync-point for the playlist specified
+ *
+ * A sync-point is defined as a known mapping from display-time to
+ * a segment-index in the current playlist.
+ *
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinite if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Object}
+ * A sync-point object
+ */
+
+ createClass$2(SyncController, [{
+ key: 'getSyncPoint',
+ value: function getSyncPoint(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = this.runStrategies_(playlist, duration$$1, currentTimeline, currentTime);
+
+ if (!syncPoints.length) {
+ // Signal that we need to attempt to get a sync-point manually
+ // by fetching a segment in the playlist and constructing
+ // a sync-point from that information
+ return null;
+ }
+
+ // Now find the sync-point that is closest to the currentTime because
+ // that should result in the most accurate guess about which segment
+ // to fetch
+ return this.selectSyncPoint_(syncPoints, { key: 'time', value: currentTime });
+ }
+
+ /**
+ * Calculate the amount of time that has expired off the playlist during playback
+ *
+ * @param {Playlist} playlist
+ * Playlist object to calculate expired from
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playling a live source)
+ * @returns {Number|null}
+ * The amount of time that has expired off the playlist during playback. Null
+ * if no sync-points for the playlist can be found.
+ */
+
+ }, {
+ key: 'getExpiredTime',
+ value: function getExpiredTime(playlist, duration$$1) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+
+ var syncPoints = this.runStrategies_(playlist, duration$$1, playlist.discontinuitySequence, 0);
+
+ // Without sync-points, there is not enough information to determine the expired time
+ if (!syncPoints.length) {
+ return null;
+ }
+
+ var syncPoint = this.selectSyncPoint_(syncPoints, {
+ key: 'segmentIndex',
+ value: 0
+ });
+
+ // If the sync-point is beyond the start of the playlist, we want to subtract the
+ // duration from index 0 to syncPoint.segmentIndex instead of adding.
+ if (syncPoint.segmentIndex > 0) {
+ syncPoint.time *= -1;
+ }
+
+ return Math.abs(syncPoint.time + sumDurations(playlist, syncPoint.segmentIndex, 0));
+ }
+
+ /**
+ * Runs each sync-point strategy and returns a list of sync-points returned by the
+ * strategies
+ *
+ * @private
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Array}
+ * A list of sync-point objects
+ */
+
+ }, {
+ key: 'runStrategies_',
+ value: function runStrategies_(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = [];
+
+ // Try to find a sync-point in by utilizing various strategies...
+ for (var i = 0; i < syncPointStrategies.length; i++) {
+ var strategy = syncPointStrategies[i];
+ var syncPoint = strategy.run(this, playlist, duration$$1, currentTimeline, currentTime);
+
+ if (syncPoint) {
+ syncPoint.strategy = strategy.name;
+ syncPoints.push({
+ strategy: strategy.name,
+ syncPoint: syncPoint
+ });
+ }
+ }
+
+ return syncPoints;
+ }
+
+ /**
+ * Selects the sync-point nearest the specified target
+ *
+ * @private
+ * @param {Array} syncPoints
+ * List of sync-points to select from
+ * @param {Object} target
+ * Object specifying the property and value we are targeting
+ * @param {String} target.key
+ * Specifies the property to target. Must be either 'time' or 'segmentIndex'
+ * @param {Number} target.value
+ * The value to target for the specified key.
+ * @returns {Object}
+ * The sync-point nearest the target
+ */
+
+ }, {
+ key: 'selectSyncPoint_',
+ value: function selectSyncPoint_(syncPoints, target) {
+ var bestSyncPoint = syncPoints[0].syncPoint;
+ var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
+ var bestStrategy = syncPoints[0].strategy;
+
+ for (var i = 1; i < syncPoints.length; i++) {
+ var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
+
+ if (newDistance < bestDistance) {
+ bestDistance = newDistance;
+ bestSyncPoint = syncPoints[i].syncPoint;
+ bestStrategy = syncPoints[i].strategy;
+ }
+ }
+
+ this.logger_('syncPoint for [' + target.key + ': ' + target.value + '] chosen with strategy' + (' [' + bestStrategy + ']: [time:' + bestSyncPoint.time + ',') + (' segmentIndex:' + bestSyncPoint.segmentIndex + ']'));
+
+ return bestSyncPoint;
+ }
+
+ /**
+ * Save any meta-data present on the segments when segments leave
+ * the live window to the playlist to allow for synchronization at the
+ * playlist level later.
+ *
+ * @param {Playlist} oldPlaylist - The previous active playlist
+ * @param {Playlist} newPlaylist - The updated and most current playlist
+ */
+
+ }, {
+ key: 'saveExpiredSegmentInfo',
+ value: function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ // When a segment expires from the playlist and it has a start time
+ // save that information as a possible sync-point reference in future
+ for (var i = mediaSequenceDiff - 1; i >= 0; i--) {
+ var lastRemovedSegment = oldPlaylist.segments[i];
+
+ if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
+ newPlaylist.syncInfo = {
+ mediaSequence: oldPlaylist.mediaSequence + i,
+ time: lastRemovedSegment.start
+ };
+ this.logger_('playlist refresh sync: [time:' + newPlaylist.syncInfo.time + ',' + (' mediaSequence: ' + newPlaylist.syncInfo.mediaSequence + ']'));
+ this.trigger('syncinfoupdate');
+ break;
+ }
+ }
+ }
+
+ /**
+ * Save the mapping from playlist's ProgramDateTime to display. This should
+ * only ever happen once at the start of playback.
+ *
+ * @param {Playlist} playlist - The currently active playlist
+ */
+
+ }, {
+ key: 'setDateTimeMapping',
+ value: function setDateTimeMapping(playlist) {
+ if (!this.datetimeToDisplayTime && playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
+ var playlistTimestamp = playlist.segments[0].dateTimeObject.getTime() / 1000;
+
+ this.datetimeToDisplayTime = -playlistTimestamp;
+ }
+ }
+
+ /**
+ * Reset the state of the inspection cache when we do a rendition
+ * switch
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.inspectCache_ = undefined;
+ }
+
+ /**
+ * Probe or inspect a fmp4 or an mpeg2-ts segment to determine the start
+ * and end of the segment in it's internal "media time". Used to generate
+ * mappings from that internal "media time" to the display time that is
+ * shown on the player.
+ *
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'probeSegmentInfo',
+ value: function probeSegmentInfo(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var playlist = segmentInfo.playlist;
+ var timingInfo = void 0;
+
+ if (segment.map) {
+ timingInfo = this.probeMp4Segment_(segmentInfo);
+ } else {
+ timingInfo = this.probeTsSegment_(segmentInfo);
+ }
+
+ if (timingInfo) {
+ if (this.calculateSegmentTimeMapping_(segmentInfo, timingInfo)) {
+ this.saveDiscontinuitySyncInfo_(segmentInfo);
+
+ // If the playlist does not have sync information yet, record that information
+ // now with segment timing information
+ if (!playlist.syncInfo) {
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: segment.start
+ };
+ }
+ }
+ }
+
+ return timingInfo;
+ }
+
+ /**
+ * Probe an fmp4 or an mpeg2-ts segment to determine the start of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeMp4Segment_',
+ value: function probeMp4Segment_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var timescales = probe.timescale(segment.map.bytes);
+ var startTime = probe.startTime(timescales, segmentInfo.bytes);
+
+ if (segmentInfo.timestampOffset !== null) {
+ segmentInfo.timestampOffset -= startTime;
+ }
+
+ return {
+ start: startTime,
+ end: startTime + segment.duration
+ };
+ }
+
+ /**
+ * Probe an mpeg2-ts segment to determine the start and end of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeTsSegment_',
+ value: function probeTsSegment_(segmentInfo) {
+ var timeInfo = tsprobe(segmentInfo.bytes, this.inspectCache_);
+ var segmentStartTime = void 0;
+ var segmentEndTime = void 0;
+
+ if (!timeInfo) {
+ return null;
+ }
+
+ if (timeInfo.video && timeInfo.video.length === 2) {
+ this.inspectCache_ = timeInfo.video[1].dts;
+ segmentStartTime = timeInfo.video[0].dtsTime;
+ segmentEndTime = timeInfo.video[1].dtsTime;
+ } else if (timeInfo.audio && timeInfo.audio.length === 2) {
+ this.inspectCache_ = timeInfo.audio[1].dts;
+ segmentStartTime = timeInfo.audio[0].dtsTime;
+ segmentEndTime = timeInfo.audio[1].dtsTime;
+ }
+
+ return {
+ start: segmentStartTime,
+ end: segmentEndTime,
+ containsVideo: timeInfo.video && timeInfo.video.length === 2,
+ containsAudio: timeInfo.audio && timeInfo.audio.length === 2
+ };
+ }
+ }, {
+ key: 'timestampOffsetForTimeline',
+ value: function timestampOffsetForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].time;
+ }
+ }, {
+ key: 'mappingForTimeline',
+ value: function mappingForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].mapping;
+ }
+
+ /**
+ * Use the "media time" for a segment to generate a mapping to "display time" and
+ * save that display time to the segment.
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo
+ * The current active request information
+ * @param {object} timingInfo
+ * The start and end time of the current segment in "media time"
+ * @returns {Boolean}
+ * Returns false if segment time mapping could not be calculated
+ */
+
+ }, {
+ key: 'calculateSegmentTimeMapping_',
+ value: function calculateSegmentTimeMapping_(segmentInfo, timingInfo) {
+ var segment = segmentInfo.segment;
+ var mappingObj = this.timelines[segmentInfo.timeline];
+
+ if (segmentInfo.timestampOffset !== null) {
+ mappingObj = {
+ time: segmentInfo.startOfSegment,
+ mapping: segmentInfo.startOfSegment - timingInfo.start
+ };
+ this.timelines[segmentInfo.timeline] = mappingObj;
+ this.trigger('timestampoffset');
+
+ this.logger_('time mapping for timeline ' + segmentInfo.timeline + ': ' + ('[time: ' + mappingObj.time + '] [mapping: ' + mappingObj.mapping + ']'));
+
+ segment.start = segmentInfo.startOfSegment;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else if (mappingObj) {
+ segment.start = timingInfo.start + mappingObj.mapping;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Each time we have discontinuity in the playlist, attempt to calculate the location
+ * in display of the start of the discontinuity and save that. We also save an accuracy
+ * value so that we save values with the most accuracy (closest to 0.)
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'saveDiscontinuitySyncInfo_',
+ value: function saveDiscontinuitySyncInfo_(segmentInfo) {
+ var playlist = segmentInfo.playlist;
+ var segment = segmentInfo.segment;
+
+ // If the current segment is a discontinuity then we know exactly where
+ // the start of the range and it's accuracy is 0 (greater accuracy values
+ // mean more approximation)
+ if (segment.discontinuity) {
+ this.discontinuities[segment.timeline] = {
+ time: segment.start,
+ accuracy: 0
+ };
+ } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ // Search for future discontinuities that we can provide better timing
+ // information for and save that information for sync purposes
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
+ var accuracy = Math.abs(mediaIndexDiff);
+
+ if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
+ var time = void 0;
+
+ if (mediaIndexDiff < 0) {
+ time = segment.start - sumDurations(playlist, segmentInfo.mediaIndex, segmentIndex);
+ } else {
+ time = segment.end + sumDurations(playlist, segmentInfo.mediaIndex + 1, segmentIndex);
+ }
+
+ this.discontinuities[discontinuity] = {
+ time: time,
+ accuracy: accuracy
+ };
+ }
+ }
+ }
+ }
+ }]);
+ return SyncController;
+ }(videojs$1.EventTarget);
+
+ var Decrypter$1 = new shimWorker("./decrypter-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var decrypterWorker = function () {
+
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits$$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0;
+
+ // Compute double and third tables
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x;
+
+ // Compute MixColumns
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ }
+
+ // Compactify. Considerable speedup on Firefox.
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+ return tables;
+ };
+ var aesTables = null;
+
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck$$1(this, AES);
+
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+ if (!aesTables) {
+ aesTables = precompute();
+ }
+ // then make a copy of that object for use
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey];
+
+ // schedule encryption keys
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1];
+
+ // apply sbox
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
+
+ // shift rows and add rcon
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ }
+
+ // schedule decryption keys
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+ AES.prototype.decrypt = function decrypt$$1(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1];
+ // state variables a,b,c,d are loaded with pre-whitened data
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0;
+
+ // key.length === 2 ?
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1];
+
+ // load up the tables
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4];
+
+ // Inner rounds. Cribbed from OpenSSL.
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;b = b2;c = c2;
+ }
+
+ // Last round.
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;a = b;b = c;c = d;d = a2;
+ }
+ };
+
+ return AES;
+ }();
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream = function () {
+ function Stream() {
+ classCallCheck$$1(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ }
+
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file async-stream.js
+ */
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+ var AsyncStream$$1 = function (_Stream) {
+ inherits$$1(AsyncStream$$1, _Stream);
+
+ function AsyncStream$$1() {
+ classCallCheck$$1(this, AsyncStream$$1);
+
+ var _this = possibleConstructorReturn$$1(this, _Stream.call(this, Stream));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+ AsyncStream$$1.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+ AsyncStream$$1.prototype.push = function push(job) {
+ this.jobs.push(job);
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream$$1;
+ }(Stream);
+
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+ var decrypt$$1 = function decrypt$$1(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+
+ var decipher = new AES(Array.prototype.slice.call(key));
+
+ // byte and word-level access for the decrypted output
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer);
+
+ // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0;
+
+ // iteration variable
+ var wordIx = void 0;
+
+ // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3];
+
+ // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]);
+
+ // decrypt the block
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx);
+
+ // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3);
+
+ // setup the IV for the next round
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+ var Decrypter$$1 = function () {
+ function Decrypter$$1(encrypted, key, initVector, done) {
+ classCallCheck$$1(this, Decrypter$$1);
+
+ var step = Decrypter$$1.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+
+ this.asyncStream_ = new AsyncStream$$1();
+
+ // split up the encryption job and do the individual chunks asynchronously
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ }
+ // invoke the done() callback when everything is finished
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+ Decrypter$$1.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt$$1(encrypted, key, initVector);
+
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass$$1(Decrypter$$1, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter$$1;
+ }();
+
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+ };
+
+ /**
+ * Our web worker interface so that things can talk to aes-decrypter
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self
+ * the scope for the web worker
+ */
+ var DecrypterWorker = function DecrypterWorker(self) {
+ self.onmessage = function (event) {
+ var data = event.data;
+ var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
+ var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
+ var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
+
+ /* eslint-disable no-new, handle-callback-err */
+ new Decrypter$$1(encrypted, key, iv, function (err, bytes) {
+ self.postMessage(createTransferableMessage({
+ source: data.source,
+ decrypted: bytes
+ }), [bytes.buffer]);
+ });
+ /* eslint-enable */
+ };
+ };
+
+ var decrypterWorker = new DecrypterWorker(self);
+
+ return decrypterWorker;
+ }();
+ });
+
+ /**
+ * Convert the properties of an HLS track into an audioTrackKind.
+ *
+ * @private
+ */
+ var audioTrackKind_ = function audioTrackKind_(properties) {
+ var kind = properties.default ? 'main' : 'alternative';
+
+ if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
+ kind = 'main-desc';
+ }
+
+ return kind;
+ };
+
+ /**
+ * Pause provided segment loader and playlist loader if active
+ *
+ * @param {SegmentLoader} segmentLoader
+ * SegmentLoader to pause
+ * @param {Object} mediaType
+ * Active media type
+ * @function stopLoaders
+ */
+ var stopLoaders = function stopLoaders(segmentLoader, mediaType) {
+ segmentLoader.abort();
+ segmentLoader.pause();
+
+ if (mediaType && mediaType.activePlaylistLoader) {
+ mediaType.activePlaylistLoader.pause();
+ mediaType.activePlaylistLoader = null;
+ }
+ };
+
+ /**
+ * Start loading provided segment loader and playlist loader
+ *
+ * @param {PlaylistLoader} playlistLoader
+ * PlaylistLoader to start loading
+ * @param {Object} mediaType
+ * Active media type
+ * @function startLoaders
+ */
+ var startLoaders = function startLoaders(playlistLoader, mediaType) {
+ // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
+ // playlist loader
+ mediaType.activePlaylistLoader = playlistLoader;
+ playlistLoader.load();
+ };
+
+ /**
+ * Returns a function to be called when the media group changes. It performs a
+ * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
+ * change of group is merely a rendition switch of the same content at another encoding,
+ * rather than a change of content, such as switching audio from English to Spanish.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a non-destructive resync of SegmentLoader when the active media
+ * group changes.
+ * @function onGroupChanged
+ */
+ var onGroupChanged = function onGroupChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad[type],
+ mainSegmentLoader = _settings$segmentLoad.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ if (previousActiveLoader) {
+ // The previous group had a playlist loader but the new active group does not
+ // this means we are switching from demuxed to muxed audio. In this case we want to
+ // do a destructive reset of the main segment loader and not restart the audio
+ // loaders.
+ mainSegmentLoader.resetEverything();
+ }
+ return;
+ }
+
+ // Non-destructive resync
+ segmentLoader.resyncLoader();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+ };
+
+ /**
+ * Returns a function to be called when the media track changes. It performs a
+ * destructive reset of the SegmentLoader to ensure we start loading as close to
+ * currentTime as possible.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a destructive reset of SegmentLoader when the active media
+ * track changes.
+ * @function onTrackChanged
+ */
+ var onTrackChanged = function onTrackChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad2 = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad2[type],
+ mainSegmentLoader = _settings$segmentLoad2.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active so we do not want to restart loaders
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ // when switching from demuxed audio/video to muxed audio/video (noted by no playlist
+ // loader for the audio group), we want to do a destructive reset of the main segment
+ // loader and not restart the audio loaders
+ mainSegmentLoader.resetEverything();
+ return;
+ }
+
+ if (previousActiveLoader === activeGroup.playlistLoader) {
+ // Nothing has actually changed. This can happen because track change events can fire
+ // multiple times for a "single" change. One for enabling the new active track, and
+ // one for disabling the track that was active
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ return;
+ }
+
+ if (segmentLoader.track) {
+ // For WebVTT, set the new text track in the segmentloader
+ segmentLoader.track(activeTrack);
+ }
+
+ // destructive reset
+ segmentLoader.resetEverything();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+ };
+
+ var onError = {
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning (or error if the playlist is blacklisted) to
+ * console and switches back to default audio track.
+ * @function onError.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type],
+ blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ // switch back to default audio track
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup();
+ var id = (activeGroup.filter(function (group) {
+ return group.default;
+ })[0] || activeGroup[0]).id;
+ var defaultTrack = mediaType.tracks[id];
+
+ if (activeTrack === defaultTrack) {
+ // Default track encountered an error. All we can do now is blacklist the current
+ // rendition and hope another will switch audio groups
+ blacklistCurrentPlaylist({
+ message: 'Problem encountered loading the default audio track.'
+ });
+ return;
+ }
+
+ videojs$1.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
+
+ for (var trackId in mediaType.tracks) {
+ mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
+ }
+
+ mediaType.onTrackChanged();
+ };
+ },
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning to console and disables the active subtitle track
+ * @function onError.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ videojs$1.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
+
+ stopLoaders(segmentLoader, mediaType);
+
+ var track = mediaType.activeTrack();
+
+ if (track) {
+ track.mode = 'disabled';
+ }
+
+ mediaType.onTrackChanged();
+ };
+ }
+ };
+
+ var setupListeners = {
+ /**
+ * Setup event listeners for audio playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.AUDIO
+ */
+ AUDIO: function AUDIO(type, playlistLoader, settings) {
+ if (!playlistLoader) {
+ // no playlist loader means audio will be muxed with the video
+ return;
+ }
+
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup event listeners for subtitle playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+ segmentLoader.track(mediaType.activeTrack());
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ }
+ };
+
+ var byGroupId = function byGroupId(type, groupId) {
+ return function (playlist) {
+ return playlist.attributes[type] === groupId;
+ };
+ };
+
+ var byResolvedUri = function byResolvedUri(resolvedUri) {
+ return function (playlist) {
+ return playlist.resolvedUri === resolvedUri;
+ };
+ };
+
+ var initialize = {
+ /**
+ * Setup PlaylistLoaders and AudioTracks for the audio groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.AUDIO
+ */
+ 'AUDIO': function AUDIO(type, settings) {
+ var hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ _settings$master = settings.master,
+ mediaGroups = _settings$master.mediaGroups,
+ playlists = _settings$master.playlists,
+ _settings$mediaTypes$ = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$.groups,
+ tracks = _settings$mediaTypes$.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ // force a default if we have none
+
+ if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
+ mediaGroups[type] = { main: { default: { default: true } } };
+ }
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ // List of playlists that have an AUDIO attribute value matching the current
+ // group ID
+ var groupPlaylists = playlists.filter(byGroupId(type, groupId));
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // List of playlists for the current group ID that have a matching uri with
+ // this alternate audio variant
+ var matchingPlaylists = groupPlaylists.filter(byResolvedUri(properties.resolvedUri));
+
+ if (matchingPlaylists.length) {
+ // If there is a playlist that has the same uri as this audio variant, assume
+ // that the playlist is audio only. We delete the resolvedUri property here
+ // to prevent a playlist loader from being created so that we don't have
+ // both the main and audio segment loaders loading the same audio segments
+ // from the same playlist.
+ delete properties.resolvedUri;
+ }
+
+ var playlistLoader = void 0;
+
+ if (properties.resolvedUri) {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (properties.playlists && sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ } else {
+ // no resolvedUri means the audio is muxed with the video when using this
+ // audio track
+ playlistLoader = null;
+ }
+
+ properties = videojs$1.mergeOptions({ id: variantLabel, playlistLoader: playlistLoader }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = new videojs$1.AudioTrack({
+ id: variantLabel,
+ kind: audioTrackKind_(properties),
+ enabled: false,
+ language: properties.language,
+ default: properties.default,
+ label: variantLabel
+ });
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup PlaylistLoaders and TextTracks for the subtitle groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.SUBTITLES
+ */
+ 'SUBTITLES': function SUBTITLES(type, settings) {
+ var tech = settings.tech,
+ hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$2 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$2.groups,
+ tracks = _settings$mediaTypes$2.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ if (mediaGroups[type][groupId][variantLabel].forced) {
+ // Subtitle playlists with the forced attribute are not selectable in Safari.
+ // According to Apple's HLS Authoring Specification:
+ // If content has forced subtitles and regular subtitles in a given language,
+ // the regular subtitles track in that language MUST contain both the forced
+ // subtitles and the regular subtitles for that language.
+ // Because of this requirement and that Safari does not add forced subtitles,
+ // forced subtitles are skipped here to maintain consistent experience across
+ // all platforms
+ continue;
+ }
+
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ var playlistLoader = void 0;
+
+ if (sourceType === 'hls') {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ }
+
+ properties = videojs$1.mergeOptions({
+ id: variantLabel,
+ playlistLoader: playlistLoader
+ }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: variantLabel,
+ kind: 'subtitles',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup TextTracks for the closed-caption groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize['CLOSED-CAPTIONS']
+ */
+ 'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {
+ var tech = settings.tech,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$3 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$3.groups,
+ tracks = _settings$mediaTypes$3.tracks;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // We only support CEA608 captions for now, so ignore anything that
+ // doesn't use a CCx INSTREAM-ID
+ if (!properties.instreamId.match(/CC\d/)) {
+ continue;
+ }
+
+ // No PlaylistLoader is required for Closed-Captions because the captions are
+ // embedded within the video stream
+ groups[groupId].push(videojs$1.mergeOptions({ id: variantLabel }, properties));
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: properties.instreamId,
+ kind: 'captions',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+ }
+ };
+
+ /**
+ * Returns a function used to get the active group of the provided type
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media group for the provided type. Takes an
+ * optional parameter {TextTrack} track. If no track is provided, a list of all
+ * variants in the group, otherwise the variant corresponding to the provided
+ * track is returned.
+ * @function activeGroup
+ */
+ var activeGroup = function activeGroup(type, settings) {
+ return function (track) {
+ var masterPlaylistLoader = settings.masterPlaylistLoader,
+ groups = settings.mediaTypes[type].groups;
+
+ var media = masterPlaylistLoader.media();
+
+ if (!media) {
+ return null;
+ }
+
+ var variants = null;
+
+ if (media.attributes[type]) {
+ variants = groups[media.attributes[type]];
+ }
+
+ variants = variants || groups.main;
+
+ if (typeof track === 'undefined') {
+ return variants;
+ }
+
+ if (track === null) {
+ // An active track was specified so a corresponding group is expected. track === null
+ // means no track is currently active so there is no corresponding group
+ return null;
+ }
+
+ return variants.filter(function (props) {
+ return props.id === track.id;
+ })[0] || null;
+ };
+ };
+
+ var activeTrack = {
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].enabled) {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ },
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].mode === 'showing') {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ }
+ };
+
+ /**
+ * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
+ * Closed-Captions) specified in the master manifest.
+ *
+ * @param {Object} settings
+ * Object containing required information for setting up the media groups
+ * @param {SegmentLoader} settings.segmentLoaders.AUDIO
+ * Audio segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.SUBTITLES
+ * Subtitle segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.main
+ * Main segment loader
+ * @param {Tech} settings.tech
+ * The tech of the player
+ * @param {Object} settings.requestOptions
+ * XHR request options used by the segment loaders
+ * @param {PlaylistLoader} settings.masterPlaylistLoader
+ * PlaylistLoader for the master source
+ * @param {HlsHandler} settings.hls
+ * HLS SourceHandler
+ * @param {Object} settings.master
+ * The parsed master manifest
+ * @param {Object} settings.mediaTypes
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @param {Function} settings.blacklistCurrentPlaylist
+ * Blacklists the current rendition and forces a rendition switch.
+ * @function setupMediaGroups
+ */
+ var setupMediaGroups = function setupMediaGroups(settings) {
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ initialize[type](type, settings);
+ });
+
+ var mediaTypes = settings.mediaTypes,
+ masterPlaylistLoader = settings.masterPlaylistLoader,
+ tech = settings.tech,
+ hls = settings.hls;
+
+ // setup active group and track getters and change event handlers
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ mediaTypes[type].activeGroup = activeGroup(type, settings);
+ mediaTypes[type].activeTrack = activeTrack[type](type, settings);
+ mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
+ mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
+ });
+
+ // DO NOT enable the default subtitle or caption track.
+ // DO enable the default audio track
+ var audioGroup = mediaTypes.AUDIO.activeGroup();
+ var groupId = (audioGroup.filter(function (group) {
+ return group.default;
+ })[0] || audioGroup[0]).id;
+
+ mediaTypes.AUDIO.tracks[groupId].enabled = true;
+ mediaTypes.AUDIO.onTrackChanged();
+
+ masterPlaylistLoader.on('mediachange', function () {
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ return mediaTypes[type].onGroupChanged();
+ });
+ });
+
+ // custom audio track change event handler for usage event
+ var onAudioTrackChanged = function onAudioTrackChanged() {
+ mediaTypes.AUDIO.onTrackChanged();
+ tech.trigger({ type: 'usage', name: 'hls-audio-change' });
+ };
+
+ tech.audioTracks().addEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+
+ hls.on('dispose', function () {
+ tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+ });
+
+ // clear existing audio tracks and add the ones we just created
+ tech.clearTracks('audio');
+
+ for (var id in mediaTypes.AUDIO.tracks) {
+ tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
+ }
+ };
+
+ /**
+ * Creates skeleton object used to store the loaders, tracks, and utility methods for each
+ * media type
+ *
+ * @return {Object}
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @function createMediaTypes
+ */
+ var createMediaTypes = function createMediaTypes() {
+ var mediaTypes = {};
+
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ mediaTypes[type] = {
+ groups: {},
+ tracks: {},
+ activePlaylistLoader: null,
+ activeGroup: noop$1,
+ activeTrack: noop$1,
+ onGroupChanged: noop$1,
+ onTrackChanged: noop$1
+ };
+ });
+
+ return mediaTypes;
+ };
+
+ /**
+ * @file master-playlist-controller.js
+ */
+
+ var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;
+
+ var Hls = void 0;
+
+ // SegmentLoader stats that need to have each loader's
+ // values summed to calculate the final value
+ var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred'];
+ var sumLoaderStat = function sumLoaderStat(stat) {
+ return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
+ };
+
+ /**
+ * the master playlist controller controller all interactons
+ * between playlists and segmentloaders. At this time this mainly
+ * involves a master playlist and a series of audio playlists
+ * if they are available
+ *
+ * @class MasterPlaylistController
+ * @extends videojs.EventTarget
+ */
+ var MasterPlaylistController = function (_videojs$EventTarget) {
+ inherits$3(MasterPlaylistController, _videojs$EventTarget);
+
+ function MasterPlaylistController(options) {
+ classCallCheck$3(this, MasterPlaylistController);
+
+ var _this = possibleConstructorReturn$3(this, (MasterPlaylistController.__proto__ || Object.getPrototypeOf(MasterPlaylistController)).call(this));
+
+ var url = options.url,
+ withCredentials = options.withCredentials,
+ tech = options.tech,
+ bandwidth = options.bandwidth,
+ externHls = options.externHls,
+ useCueTags = options.useCueTags,
+ blacklistDuration = options.blacklistDuration,
+ enableLowInitialPlaylist = options.enableLowInitialPlaylist,
+ sourceType = options.sourceType,
+ seekTo = options.seekTo;
+
+ if (!url) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ Hls = externHls;
+
+ _this.withCredentials = withCredentials;
+ _this.tech_ = tech;
+ _this.hls_ = tech.hls;
+ _this.seekTo_ = seekTo;
+ _this.sourceType_ = sourceType;
+ _this.useCueTags_ = useCueTags;
+ _this.blacklistDuration = blacklistDuration;
+ _this.enableLowInitialPlaylist = enableLowInitialPlaylist;
+ if (_this.useCueTags_) {
+ _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');
+ _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
+ }
+
+ _this.requestOptions_ = {
+ withCredentials: _this.withCredentials,
+ timeout: null
+ };
+
+ _this.mediaTypes_ = createMediaTypes();
+
+ _this.mediaSource = new videojs$1.MediaSource();
+
+ // load the media source into the player
+ _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_.bind(_this));
+
+ _this.seekable_ = videojs$1.createTimeRanges();
+ _this.hasPlayed_ = function () {
+ return false;
+ };
+
+ _this.syncController_ = new SyncController(options);
+ _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'segment-metadata'
+ }, false).track;
+
+ _this.decrypter_ = new Decrypter$1();
+ _this.inbandTextTracks_ = {};
+
+ var segmentLoaderSettings = {
+ hls: _this.hls_,
+ mediaSource: _this.mediaSource,
+ currentTime: _this.tech_.currentTime.bind(_this.tech_),
+ seekable: function seekable$$1() {
+ return _this.seekable();
+ },
+ seeking: function seeking() {
+ return _this.tech_.seeking();
+ },
+ duration: function duration$$1() {
+ return _this.mediaSource.duration;
+ },
+ hasPlayed: function hasPlayed() {
+ return _this.hasPlayed_();
+ },
+ goalBufferLength: function goalBufferLength() {
+ return _this.goalBufferLength();
+ },
+ bandwidth: bandwidth,
+ syncController: _this.syncController_,
+ decrypter: _this.decrypter_,
+ sourceType: _this.sourceType_,
+ inbandTextTracks: _this.inbandTextTracks_
+ };
+
+ _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(url, _this.hls_, _this.withCredentials) : new PlaylistLoader(url, _this.hls_, _this.withCredentials);
+ _this.setupMasterPlaylistLoaderListeners_();
+
+ // setup segment loaders
+ // combined audio/video or just video when alternate audio track is selected
+ _this.mainSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ segmentMetadataTrack: _this.segmentMetadataTrack_,
+ loaderType: 'main'
+ }), options);
+
+ // alternate audio track
+ _this.audioSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'audio'
+ }), options);
+
+ _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'vtt'
+ }), options);
+
+ _this.setupSegmentLoaderListeners_();
+
+ // Create SegmentLoader stat-getters
+ loaderStats.forEach(function (stat) {
+ _this[stat + '_'] = sumLoaderStat.bind(_this, stat);
+ });
+
+ _this.logger_ = logger('MPC');
+
+ _this.masterPlaylistLoader_.load();
+ return _this;
+ }
+
+ /**
+ * Register event handlers on the master playlist loader. A helper
+ * function for construction time.
+ *
+ * @private
+ */
+
+ createClass$2(MasterPlaylistController, [{
+ key: 'setupMasterPlaylistLoaderListeners_',
+ value: function setupMasterPlaylistLoaderListeners_() {
+ var _this2 = this;
+
+ this.masterPlaylistLoader_.on('loadedmetadata', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // if this isn't a live video and preload permits, start
+ // downloading segments
+ if (media.endList && _this2.tech_.preload() !== 'none') {
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+ _this2.mainSegmentLoader_.load();
+ }
+
+ setupMediaGroups({
+ sourceType: _this2.sourceType_,
+ segmentLoaders: {
+ AUDIO: _this2.audioSegmentLoader_,
+ SUBTITLES: _this2.subtitleSegmentLoader_,
+ main: _this2.mainSegmentLoader_
+ },
+ tech: _this2.tech_,
+ requestOptions: _this2.requestOptions_,
+ masterPlaylistLoader: _this2.masterPlaylistLoader_,
+ hls: _this2.hls_,
+ master: _this2.master(),
+ mediaTypes: _this2.mediaTypes_,
+ blacklistCurrentPlaylist: _this2.blacklistCurrentPlaylist.bind(_this2)
+ });
+
+ _this2.triggerPresenceUsage_(_this2.master(), media);
+
+ try {
+ _this2.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create SourceBuffers', e);
+ return _this2.mediaSource.endOfStream('decode');
+ }
+ _this2.setupFirstPlay();
+
+ _this2.trigger('selectedinitialmedia');
+ });
+
+ this.masterPlaylistLoader_.on('loadedplaylist', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+
+ if (!updatedPlaylist) {
+ // blacklist any variants that are not supported by the browser before selecting
+ // an initial media as the playlist selectors do not consider browser support
+ _this2.excludeUnsupportedVariants_();
+
+ var selectedMedia = void 0;
+
+ if (_this2.enableLowInitialPlaylist) {
+ selectedMedia = _this2.selectInitialPlaylist();
+ }
+
+ if (!selectedMedia) {
+ selectedMedia = _this2.selectPlaylist();
+ }
+
+ _this2.initialMedia_ = selectedMedia;
+ _this2.masterPlaylistLoader_.media(_this2.initialMedia_);
+ return;
+ }
+
+ if (_this2.useCueTags_) {
+ _this2.updateAdCues_(updatedPlaylist);
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `mediachange`
+ _this2.mainSegmentLoader_.playlist(updatedPlaylist, _this2.requestOptions_);
+ _this2.updateDuration();
+
+ // If the player isn't paused, ensure that the segment loader is running,
+ // as it is possible that it was temporarily stopped while waiting for
+ // a playlist (e.g., in case the playlist errored and we re-requested it).
+ if (!_this2.tech_.paused()) {
+ _this2.mainSegmentLoader_.load();
+ if (_this2.audioSegmentLoader_) {
+ _this2.audioSegmentLoader_.load();
+ }
+ }
+
+ if (!updatedPlaylist.endList) {
+ var addSeekableRange = function addSeekableRange() {
+ var seekable$$1 = _this2.seekable();
+
+ if (seekable$$1.length !== 0) {
+ _this2.mediaSource.addSeekableRange_(seekable$$1.start(0), seekable$$1.end(0));
+ }
+ };
+
+ if (_this2.duration() !== Infinity) {
+ var onDurationchange = function onDurationchange() {
+ if (_this2.duration() === Infinity) {
+ addSeekableRange();
+ } else {
+ _this2.tech_.one('durationchange', onDurationchange);
+ }
+ };
+
+ _this2.tech_.one('durationchange', onDurationchange);
+ } else {
+ addSeekableRange();
+ }
+ }
+ });
+
+ this.masterPlaylistLoader_.on('error', function () {
+ _this2.blacklistCurrentPlaylist(_this2.masterPlaylistLoader_.error);
+ });
+
+ this.masterPlaylistLoader_.on('mediachanging', function () {
+ _this2.mainSegmentLoader_.abort();
+ _this2.mainSegmentLoader_.pause();
+ });
+
+ this.masterPlaylistLoader_.on('mediachange', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `loadedplaylist`
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+
+ _this2.mainSegmentLoader_.load();
+
+ _this2.tech_.trigger({
+ type: 'mediachange',
+ bubbles: true
+ });
+ });
+
+ this.masterPlaylistLoader_.on('playlistunchanged', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+ var playlistOutdated = _this2.stuckAtPlaylistEnd_(updatedPlaylist);
+
+ if (playlistOutdated) {
+ // Playlist has stopped updating and we're stuck at its end. Try to
+ // blacklist it and switch to another playlist in the hope that that
+ // one is updating (and give the player a chance to re-adjust to the
+ // safe live point).
+ _this2.blacklistCurrentPlaylist({
+ message: 'Playlist no longer updating.'
+ });
+ // useful for monitoring QoS
+ _this2.tech_.trigger('playliststuck');
+ }
+ });
+
+ this.masterPlaylistLoader_.on('renditiondisabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-disabled' });
+ });
+ this.masterPlaylistLoader_.on('renditionenabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-enabled' });
+ });
+ }
+
+ /**
+ * A helper function for triggerring presence usage events once per source
+ *
+ * @private
+ */
+
+ }, {
+ key: 'triggerPresenceUsage_',
+ value: function triggerPresenceUsage_(master, media) {
+ var mediaGroups = master.mediaGroups || {};
+ var defaultDemuxed = true;
+ var audioGroupKeys = Object.keys(mediaGroups.AUDIO);
+
+ for (var mediaGroup in mediaGroups.AUDIO) {
+ for (var label in mediaGroups.AUDIO[mediaGroup]) {
+ var properties = mediaGroups.AUDIO[mediaGroup][label];
+
+ if (!properties.uri) {
+ defaultDemuxed = false;
+ }
+ }
+ }
+
+ if (defaultDemuxed) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-demuxed' });
+ }
+
+ if (Object.keys(mediaGroups.SUBTITLES).length) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-webvtt' });
+ }
+
+ if (Hls.Playlist.isAes(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-aes' });
+ }
+
+ if (Hls.Playlist.isFmp4(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-fmp4' });
+ }
+
+ if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-alternate-audio' });
+ }
+
+ if (this.useCueTags_) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-playlist-cue-tags' });
+ }
+ }
+ /**
+ * Register event handlers on the segment loaders. A helper function
+ * for construction time.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSegmentLoaderListeners_',
+ value: function setupSegmentLoaderListeners_() {
+ var _this3 = this;
+
+ this.mainSegmentLoader_.on('bandwidthupdate', function () {
+ var nextPlaylist = _this3.selectPlaylist();
+ var currentPlaylist = _this3.masterPlaylistLoader_.media();
+ var buffered = _this3.tech_.buffered();
+ var forwardBuffer = buffered.length ? buffered.end(buffered.length - 1) - _this3.tech_.currentTime() : 0;
+
+ var bufferLowWaterLine = _this3.bufferLowWaterLine();
+
+ // If the playlist is live, then we want to not take low water line into account.
+ // This is because in LIVE, the player plays 3 segments from the end of the
+ // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
+ // in those segments, a viewer will never experience a rendition upswitch.
+ if (!currentPlaylist.endList ||
+ // For the same reason as LIVE, we ignore the low water line when the VOD
+ // duration is below the max potential low water line
+ _this3.duration() < Config.MAX_BUFFER_LOW_WATER_LINE ||
+ // we want to switch down to lower resolutions quickly to continue playback, but
+ nextPlaylist.attributes.BANDWIDTH < currentPlaylist.attributes.BANDWIDTH ||
+ // ensure we have some buffer before we switch up to prevent us running out of
+ // buffer while loading a higher rendition.
+ forwardBuffer >= bufferLowWaterLine) {
+ _this3.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ _this3.tech_.trigger('bandwidthupdate');
+ });
+ this.mainSegmentLoader_.on('progress', function () {
+ _this3.trigger('progress');
+ });
+
+ this.mainSegmentLoader_.on('error', function () {
+ _this3.blacklistCurrentPlaylist(_this3.mainSegmentLoader_.error());
+ });
+
+ this.mainSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('timestampoffset', function () {
+ _this3.tech_.trigger({ type: 'usage', name: 'hls-timestamp-offset' });
+ });
+ this.audioSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+
+ this.mainSegmentLoader_.on('earlyabort', function () {
+ _this3.blacklistCurrentPlaylist({
+ message: 'Aborted early because there isn\'t enough bandwidth to complete the ' + 'request without rebuffering.'
+ }, ABORT_EARLY_BLACKLIST_SECONDS);
+ });
+
+ this.mainSegmentLoader_.on('reseteverything', function () {
+ // If playing an MTS stream, a videojs.MediaSource is listening for
+ // hls-reset to reset caption parsing state in the transmuxer
+ _this3.tech_.trigger('hls-reset');
+ });
+
+ this.mainSegmentLoader_.on('segmenttimemapping', function (event) {
+ // If playing an MTS stream in html, a videojs.MediaSource is listening for
+ // hls-segment-time-mapping update its internal mapping of stream to display time
+ _this3.tech_.trigger({
+ type: 'hls-segment-time-mapping',
+ mapping: event.mapping
+ });
+ });
+
+ this.audioSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+ }
+ }, {
+ key: 'mediaSecondsLoaded_',
+ value: function mediaSecondsLoaded_() {
+ return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
+ }
+
+ /**
+ * Call load on our SegmentLoaders
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ this.mainSegmentLoader_.load();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.load();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.load();
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions without performing destructive actions, like
+ * removing already buffered content
+ *
+ * @private
+ */
+
+ }, {
+ key: 'smoothQualityChange_',
+ value: function smoothQualityChange_() {
+ var media = this.selectPlaylist();
+
+ if (media !== this.masterPlaylistLoader_.media()) {
+ this.masterPlaylistLoader_.media(media);
+
+ this.mainSegmentLoader_.resetLoader();
+ // don't need to reset audio as it is reset when media changes
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions. This method will perform destructive actions like removing
+ * already buffered content in order to readjust the currently active
+ * playlist quickly. This is good for manual quality changes
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fastQualityChange_',
+ value: function fastQualityChange_() {
+ var _this4 = this;
+
+ var media = this.selectPlaylist();
+
+ if (media === this.masterPlaylistLoader_.media()) {
+ return;
+ }
+
+ this.masterPlaylistLoader_.media(media);
+
+ // Delete all buffered data to allow an immediate quality switch, then seek to give
+ // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
+ // ahead is roughly the minimum that will accomplish this across a variety of content
+ // in IE and Edge, but seeking in place is sufficient on all other browsers)
+ // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
+ // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
+ this.mainSegmentLoader_.resetEverything(function () {
+ // Since this is not a typical seek, we avoid the seekTo method which can cause segments
+ // from the previously enabled rendition to load before the new playlist has finished loading
+ if (videojs$1.browser.IE_VERSION || videojs$1.browser.IS_EDGE) {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime() + 0.04);
+ } else {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime());
+ }
+ });
+
+ // don't need to reset audio as it is reset when media changes
+ }
+
+ /**
+ * Begin playback.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ if (this.setupFirstPlay()) {
+ return;
+ }
+
+ if (this.tech_.ended()) {
+ this.seekTo_(0);
+ }
+
+ if (this.hasPlayed_()) {
+ this.load();
+ }
+
+ var seekable$$1 = this.tech_.seekable();
+
+ // if the viewer has paused and we fell out of the live window,
+ // seek forward to the live point
+ if (this.tech_.duration() === Infinity) {
+ if (this.tech_.currentTime() < seekable$$1.start(0)) {
+ return this.seekTo_(seekable$$1.end(seekable$$1.length - 1));
+ }
+ }
+ }
+
+ /**
+ * Seek to the latest media position if this is a live video and the
+ * player and video are loaded and initialized.
+ */
+
+ }, {
+ key: 'setupFirstPlay',
+ value: function setupFirstPlay() {
+ var _this5 = this;
+
+ var media = this.masterPlaylistLoader_.media();
+
+ // Check that everything is ready to begin buffering for the first call to play
+ // If 1) there is no active media
+ // 2) the player is paused
+ // 3) the first play has already been setup
+ // then exit early
+ if (!media || this.tech_.paused() || this.hasPlayed_()) {
+ return false;
+ }
+
+ // when the video is a live stream
+ if (!media.endList) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // without a seekable range, the player cannot seek to begin buffering at the live
+ // point
+ return false;
+ }
+
+ if (videojs$1.browser.IE_VERSION && this.tech_.readyState() === 0) {
+ // IE11 throws an InvalidStateError if you try to set currentTime while the
+ // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
+ this.tech_.one('loadedmetadata', function () {
+ _this5.trigger('firstplay');
+ _this5.seekTo_(seekable$$1.end(0));
+ _this5.hasPlayed_ = function () {
+ return true;
+ };
+ });
+
+ return false;
+ }
+
+ // trigger firstplay to inform the source handler to ignore the next seek event
+ this.trigger('firstplay');
+ // seek to the live point
+ this.seekTo_(seekable$$1.end(0));
+ }
+
+ this.hasPlayed_ = function () {
+ return true;
+ };
+ // we can begin loading now that everything is ready
+ this.load();
+ return true;
+ }
+
+ /**
+ * handle the sourceopen event on the MediaSource
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSourceOpen_',
+ value: function handleSourceOpen_() {
+ // Only attempt to create the source buffer if none already exist.
+ // handleSourceOpen is also called when we are "re-opening" a source buffer
+ // after `endOfStream` has been called (in response to a seek for instance)
+ try {
+ this.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create Source Buffers', e);
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ // if autoplay is enabled, begin playback. This is duplicative of
+ // code in video.js but is required because play() must be invoked
+ // *after* the media source has opened.
+ if (this.tech_.autoplay()) {
+ var playPromise = this.tech_.play();
+
+ // Catch/silence error when a pause interrupts a play request
+ // on browsers which return a promise
+ if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
+ playPromise.then(null, function (e) {});
+ }
+ }
+
+ this.trigger('sourceopen');
+ }
+
+ /**
+ * Calls endOfStream on the media source when all active stream types have called
+ * endOfStream
+ *
+ * @param {string} streamType
+ * Stream type of the segment loader that called endOfStream
+ * @private
+ */
+
+ }, {
+ key: 'onEndOfStream',
+ value: function onEndOfStream() {
+ var isEndOfStream = this.mainSegmentLoader_.ended_;
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ // if the audio playlist loader exists, then alternate audio is active
+ if (!this.mainSegmentLoader_.startingMedia_ || this.mainSegmentLoader_.startingMedia_.containsVideo) {
+ // if we do not know if the main segment loader contains video yet or if we
+ // definitively know the main segment loader contains video, then we need to wait
+ // for both main and audio segment loaders to call endOfStream
+ isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
+ } else {
+ // otherwise just rely on the audio loader
+ isEndOfStream = this.audioSegmentLoader_.ended_;
+ }
+ }
+
+ if (isEndOfStream) {
+ this.mediaSource.endOfStream();
+ }
+ }
+
+ /**
+ * Check if a playlist has stopped being updated
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist has stopped being updated or not
+ */
+
+ }, {
+ key: 'stuckAtPlaylistEnd_',
+ value: function stuckAtPlaylistEnd_(playlist) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // playlist doesn't have enough information to determine whether we are stuck
+ return false;
+ }
+
+ var expired = this.syncController_.getExpiredTime(playlist, this.mediaSource.duration);
+
+ if (expired === null) {
+ return false;
+ }
+
+ // does not use the safe live end to calculate playlist end, since we
+ // don't want to say we are stuck while there is still content
+ var absolutePlaylistEnd = Hls.Playlist.playlistEnd(playlist, expired);
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (!buffered.length) {
+ // return true if the playhead reached the absolute end of the playlist
+ return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
+ }
+ var bufferedEnd = buffered.end(buffered.length - 1);
+
+ // return true if there is too little buffer left and buffer has reached absolute
+ // end of playlist
+ return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
+ }
+
+ /**
+ * Blacklists a playlist when an error occurs for a set amount of time
+ * making it unavailable for selection by the rendition selection algorithm
+ * and then forces a new playlist (rendition) selection.
+ *
+ * @param {Object=} error an optional error that may include the playlist
+ * to blacklist
+ * @param {Number=} blacklistDuration an optional number of seconds to blacklist the
+ * playlist
+ */
+
+ }, {
+ key: 'blacklistCurrentPlaylist',
+ value: function blacklistCurrentPlaylist() {
+ var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var blacklistDuration = arguments[1];
+
+ var currentPlaylist = void 0;
+ var nextPlaylist = void 0;
+
+ // If the `error` was generated by the playlist loader, it will contain
+ // the playlist we were trying to load (but failed) and that should be
+ // blacklisted instead of the currently selected playlist which is likely
+ // out-of-date in this scenario
+ currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();
+
+ blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration;
+
+ // If there is no current playlist, then an error occurred while we were
+ // trying to load the master OR while we were disposing of the tech
+ if (!currentPlaylist) {
+ this.error = error;
+
+ try {
+ return this.mediaSource.endOfStream('network');
+ } catch (e) {
+ return this.trigger('error');
+ }
+ }
+
+ var isFinalRendition = this.masterPlaylistLoader_.master.playlists.filter(isEnabled).length === 1;
+
+ if (isFinalRendition) {
+ // Never blacklisting this playlist because it's final rendition
+ videojs$1.log.warn('Problem encountered with the current ' + 'HLS playlist. Trying again since it is the final playlist.');
+
+ this.tech_.trigger('retryplaylist');
+ return this.masterPlaylistLoader_.load(isFinalRendition);
+ }
+ // Blacklist this playlist
+ currentPlaylist.excludeUntil = Date.now() + blacklistDuration * 1000;
+ this.tech_.trigger('blacklistplaylist');
+ this.tech_.trigger({ type: 'usage', name: 'hls-rendition-blacklisted' });
+
+ // Select a new playlist
+ nextPlaylist = this.selectPlaylist();
+ videojs$1.log.warn('Problem encountered with the current HLS playlist.' + (error.message ? ' ' + error.message : '') + ' Switching to another playlist.');
+
+ return this.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ /**
+ * Pause all segment loaders
+ */
+
+ }, {
+ key: 'pauseLoading',
+ value: function pauseLoading() {
+ this.mainSegmentLoader_.pause();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.pause();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.pause();
+ }
+ }
+
+ /**
+ * set the current time on all segment loaders
+ *
+ * @param {TimeRange} currentTime the current time to set
+ * @return {TimeRange} the current time
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ var buffered = findRange(this.tech_.buffered(), currentTime);
+
+ if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {
+ // return immediately if the metadata is not ready yet
+ return 0;
+ }
+
+ // it's clearly an edge-case but don't thrown an error if asked to
+ // seek within an empty playlist
+ if (!this.masterPlaylistLoader_.media().segments) {
+ return 0;
+ }
+
+ // In flash playback, the segment loaders should be reset on every seek, even
+ // in buffer seeks. If the seek location is already buffered, continue buffering as
+ // usual
+ // TODO: redo this comment
+ if (buffered && buffered.length) {
+ return currentTime;
+ }
+
+ // cancel outstanding requests so we begin buffering at the new
+ // location
+ this.mainSegmentLoader_.resetEverything();
+ this.mainSegmentLoader_.abort();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.resetEverything();
+ this.audioSegmentLoader_.abort();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.resetEverything();
+ this.subtitleSegmentLoader_.abort();
+ }
+
+ // start segment loader loading in case they are paused
+ this.load();
+ }
+
+ /**
+ * get the current duration
+ *
+ * @return {TimeRange} the duration
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ if (!this.masterPlaylistLoader_) {
+ return 0;
+ }
+
+ if (this.mediaSource) {
+ return this.mediaSource.duration;
+ }
+
+ return Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ }
+
+ /**
+ * check the seekable range
+ *
+ * @return {TimeRange} the seekable range
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.seekable_;
+ }
+ }, {
+ key: 'onSyncInfoUpdate_',
+ value: function onSyncInfoUpdate_() {
+ var mainSeekable = void 0;
+ var audioSeekable = void 0;
+
+ if (!this.masterPlaylistLoader_) {
+ return;
+ }
+
+ var media = this.masterPlaylistLoader_.media();
+
+ if (!media) {
+ return;
+ }
+
+ var expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ // not enough information to update seekable
+ return;
+ }
+
+ mainSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (mainSeekable.length === 0) {
+ return;
+ }
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
+ expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ return;
+ }
+
+ audioSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (audioSeekable.length === 0) {
+ return;
+ }
+ }
+
+ if (!audioSeekable) {
+ // seekable has been calculated based on buffering video data so it
+ // can be returned directly
+ this.seekable_ = mainSeekable;
+ } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
+ // seekables are pretty far off, rely on main
+ this.seekable_ = mainSeekable;
+ } else {
+ this.seekable_ = videojs$1.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
+ }
+
+ this.logger_('seekable updated [' + printableRange(this.seekable_) + ']');
+
+ this.tech_.trigger('seekablechanged');
+ }
+
+ /**
+ * Update the player duration
+ */
+
+ }, {
+ key: 'updateDuration',
+ value: function updateDuration() {
+ var _this6 = this;
+
+ var oldDuration = this.mediaSource.duration;
+ var newDuration = Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ var buffered = this.tech_.buffered();
+ var setDuration = function setDuration() {
+ _this6.mediaSource.duration = newDuration;
+ _this6.tech_.trigger('durationchange');
+
+ _this6.mediaSource.removeEventListener('sourceopen', setDuration);
+ };
+
+ if (buffered.length > 0) {
+ newDuration = Math.max(newDuration, buffered.end(buffered.length - 1));
+ }
+
+ // if the duration has changed, invalidate the cached value
+ if (oldDuration !== newDuration) {
+ // update the duration
+ if (this.mediaSource.readyState !== 'open') {
+ this.mediaSource.addEventListener('sourceopen', setDuration);
+ } else {
+ setDuration();
+ }
+ }
+ }
+
+ /**
+ * dispose of the MasterPlaylistController and everything
+ * that it controls
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ var _this7 = this;
+
+ this.decrypter_.terminate();
+ this.masterPlaylistLoader_.dispose();
+ this.mainSegmentLoader_.dispose();
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ var groups = _this7.mediaTypes_[type].groups;
+
+ for (var id in groups) {
+ groups[id].forEach(function (group) {
+ if (group.playlistLoader) {
+ group.playlistLoader.dispose();
+ }
+ });
+ }
+ });
+
+ this.audioSegmentLoader_.dispose();
+ this.subtitleSegmentLoader_.dispose();
+ }
+
+ /**
+ * return the master playlist object if we have one
+ *
+ * @return {Object} the master playlist object that we parsed
+ */
+
+ }, {
+ key: 'master',
+ value: function master() {
+ return this.masterPlaylistLoader_.master;
+ }
+
+ /**
+ * return the currently selected playlist
+ *
+ * @return {Object} the currently selected playlist object that we parsed
+ */
+
+ }, {
+ key: 'media',
+ value: function media() {
+ // playlist loader will not return media if it has not been fully loaded
+ return this.masterPlaylistLoader_.media() || this.initialMedia_;
+ }
+
+ /**
+ * setup our internal source buffers on our segment Loaders
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSourceBuffers_',
+ value: function setupSourceBuffers_() {
+ var media = this.masterPlaylistLoader_.media();
+ var mimeTypes = void 0;
+
+ // wait until a media playlist is available and the Media Source is
+ // attached
+ if (!media || this.mediaSource.readyState !== 'open') {
+ return;
+ }
+
+ mimeTypes = mimeTypesForPlaylist(this.masterPlaylistLoader_.master, media);
+ if (mimeTypes.length < 1) {
+ this.error = 'No compatible SourceBuffer configuration for the variant stream:' + media.resolvedUri;
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ this.configureLoaderMimeTypes_(mimeTypes);
+ // exclude any incompatible variant streams from future playlist
+ // selection
+ this.excludeIncompatibleVariants_(media);
+ }
+ }, {
+ key: 'configureLoaderMimeTypes_',
+ value: function configureLoaderMimeTypes_(mimeTypes) {
+ // If the content is demuxed, we can't start appending segments to a source buffer
+ // until both source buffers are set up, or else the browser may not let us add the
+ // second source buffer (it will assume we are playing either audio only or video
+ // only).
+ var sourceBufferEmitter =
+ // If there is more than one mime type
+ mimeTypes.length > 1 &&
+ // and the first mime type does not have muxed video and audio
+ mimeTypes[0].indexOf(',') === -1 &&
+ // and the two mime types are different (they can be the same in the case of audio
+ // only with alternate audio)
+ mimeTypes[0] !== mimeTypes[1] ?
+ // then we want to wait on the second source buffer
+ new videojs$1.EventTarget() :
+ // otherwise there is no need to wait as the content is either audio only,
+ // video only, or muxed content.
+ null;
+
+ this.mainSegmentLoader_.mimeType(mimeTypes[0], sourceBufferEmitter);
+ if (mimeTypes[1]) {
+ this.audioSegmentLoader_.mimeType(mimeTypes[1], sourceBufferEmitter);
+ }
+ }
+
+ /**
+ * Blacklists playlists with codecs that are unsupported by the browser.
+ */
+
+ }, {
+ key: 'excludeUnsupportedVariants_',
+ value: function excludeUnsupportedVariants_() {
+ this.master().playlists.forEach(function (variant) {
+ if (variant.attributes.CODECS && window_1.MediaSource && window_1.MediaSource.isTypeSupported && !window_1.MediaSource.isTypeSupported('video/mp4; codecs="' + mapLegacyAvcCodecs(variant.attributes.CODECS) + '"')) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+
+ /**
+ * Blacklist playlists that are known to be codec or
+ * stream-incompatible with the SourceBuffer configuration. For
+ * instance, Media Source Extensions would cause the video element to
+ * stall waiting for video data if you switched from a variant with
+ * video and audio to an audio-only one.
+ *
+ * @param {Object} media a media playlist compatible with the current
+ * set of SourceBuffers. Variants in the current master playlist that
+ * do not appear to have compatible codec or stream configurations
+ * will be excluded from the default playlist selection algorithm
+ * indefinitely.
+ * @private
+ */
+
+ }, {
+ key: 'excludeIncompatibleVariants_',
+ value: function excludeIncompatibleVariants_(media) {
+ var codecCount = 2;
+ var videoCodec = null;
+ var codecs = void 0;
+
+ if (media.attributes.CODECS) {
+ codecs = parseCodecs(media.attributes.CODECS);
+ videoCodec = codecs.videoCodec;
+ codecCount = codecs.codecCount;
+ }
+
+ this.master().playlists.forEach(function (variant) {
+ var variantCodecs = {
+ codecCount: 2,
+ videoCodec: null
+ };
+
+ if (variant.attributes.CODECS) {
+ variantCodecs = parseCodecs(variant.attributes.CODECS);
+ }
+
+ // if the streams differ in the presence or absence of audio or
+ // video, they are incompatible
+ if (variantCodecs.codecCount !== codecCount) {
+ variant.excludeUntil = Infinity;
+ }
+
+ // if h.264 is specified on the current playlist, some flavor of
+ // it must be specified on all compatible variants
+ if (variantCodecs.videoCodec !== videoCodec) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+ }, {
+ key: 'updateAdCues_',
+ value: function updateAdCues_(media) {
+ var offset = 0;
+ var seekable$$1 = this.seekable();
+
+ if (seekable$$1.length) {
+ offset = seekable$$1.start(0);
+ }
+
+ updateAdCues(media, this.cueTagsTrack_, offset);
+ }
+
+ /**
+ * Calculates the desired forward buffer length based on current time
+ *
+ * @return {Number} Desired forward buffer length in seconds
+ */
+
+ }, {
+ key: 'goalBufferLength',
+ value: function goalBufferLength() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.GOAL_BUFFER_LENGTH;
+ var rate = Config.GOAL_BUFFER_LENGTH_RATE;
+ var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+
+ /**
+ * Calculates the desired buffer low water line based on current time
+ *
+ * @return {Number} Desired buffer low water line in seconds
+ */
+
+ }, {
+ key: 'bufferLowWaterLine',
+ value: function bufferLowWaterLine() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.BUFFER_LOW_WATER_LINE;
+ var rate = Config.BUFFER_LOW_WATER_LINE_RATE;
+ var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+ }]);
+ return MasterPlaylistController;
+ }(videojs$1.EventTarget);
+
+ /**
+ * Returns a function that acts as the Enable/disable playlist function.
+ *
+ * @param {PlaylistLoader} loader - The master playlist loader
+ * @param {String} playlistUri - uri of the playlist
+ * @param {Function} changePlaylistFn - A function to be called after a
+ * playlist's enabled-state has been changed. Will NOT be called if a
+ * playlist's enabled-state is unchanged
+ * @param {Boolean=} enable - Value to set the playlist enabled-state to
+ * or if undefined returns the current enabled-state for the playlist
+ * @return {Function} Function for setting/getting enabled
+ */
+ var enableFunction = function enableFunction(loader, playlistUri, changePlaylistFn) {
+ return function (enable) {
+ var playlist = loader.master.playlists[playlistUri];
+ var incompatible = isIncompatible(playlist);
+ var currentlyEnabled = isEnabled(playlist);
+
+ if (typeof enable === 'undefined') {
+ return currentlyEnabled;
+ }
+
+ if (enable) {
+ delete playlist.disabled;
+ } else {
+ playlist.disabled = true;
+ }
+
+ if (enable !== currentlyEnabled && !incompatible) {
+ // Ensure the outside world knows about our changes
+ changePlaylistFn();
+ if (enable) {
+ loader.trigger('renditionenabled');
+ } else {
+ loader.trigger('renditiondisabled');
+ }
+ }
+ return enable;
+ };
+ };
+
+ /**
+ * The representation object encapsulates the publicly visible information
+ * in a media playlist along with a setter/getter-type function (enabled)
+ * for changing the enabled-state of a particular playlist entry
+ *
+ * @class Representation
+ */
+
+ var Representation = function Representation(hlsHandler, playlist, id) {
+ classCallCheck$3(this, Representation);
+
+ // Get a reference to a bound version of fastQualityChange_
+ var fastChangeFunction = hlsHandler.masterPlaylistController_.fastQualityChange_.bind(hlsHandler.masterPlaylistController_);
+
+ // some playlist attributes are optional
+ if (playlist.attributes.RESOLUTION) {
+ var resolution = playlist.attributes.RESOLUTION;
+
+ this.width = resolution.width;
+ this.height = resolution.height;
+ }
+
+ this.bandwidth = playlist.attributes.BANDWIDTH;
+
+ // The id is simply the ordinality of the media playlist
+ // within the master playlist
+ this.id = id;
+
+ // Partially-apply the enableFunction to create a playlist-
+ // specific variant
+ this.enabled = enableFunction(hlsHandler.playlists, playlist.uri, fastChangeFunction);
+ };
+
+ /**
+ * A mixin function that adds the `representations` api to an instance
+ * of the HlsHandler class
+ * @param {HlsHandler} hlsHandler - An instance of HlsHandler to add the
+ * representation API into
+ */
+
+ var renditionSelectionMixin = function renditionSelectionMixin(hlsHandler) {
+ var playlists = hlsHandler.playlists;
+
+ // Add a single API-specific function to the HlsHandler instance
+ hlsHandler.representations = function () {
+ return playlists.master.playlists.filter(function (media) {
+ return !isIncompatible(media);
+ }).map(function (e, i) {
+ return new Representation(hlsHandler, e, e.uri);
+ });
+ };
+ };
+
+ /**
+ * @file playback-watcher.js
+ *
+ * Playback starts, and now my watch begins. It shall not end until my death. I shall
+ * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
+ * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
+ * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
+ * my life and honor to the Playback Watch, for this Player and all the Players to come.
+ */
+
+ // Set of events that reset the playback-watcher time check logic and clear the timeout
+ var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
+
+ /**
+ * @class PlaybackWatcher
+ */
+
+ var PlaybackWatcher = function () {
+ /**
+ * Represents an PlaybackWatcher object.
+ * @constructor
+ * @param {object} options an object that includes the tech and settings
+ */
+ function PlaybackWatcher(options) {
+ var _this = this;
+
+ classCallCheck$3(this, PlaybackWatcher);
+
+ this.tech_ = options.tech;
+ this.seekable = options.seekable;
+ this.seekTo = options.seekTo;
+
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = null;
+ this.timer_ = null;
+ this.checkCurrentTimeTimeout_ = null;
+ this.logger_ = logger('PlaybackWatcher');
+
+ this.logger_('initialize');
+
+ var canPlayHandler = function canPlayHandler() {
+ return _this.monitorCurrentTime_();
+ };
+ var waitingHandler = function waitingHandler() {
+ return _this.techWaiting_();
+ };
+ var cancelTimerHandler = function cancelTimerHandler() {
+ return _this.cancelTimer_();
+ };
+ var fixesBadSeeksHandler = function fixesBadSeeksHandler() {
+ return _this.fixesBadSeeks_();
+ };
+
+ this.tech_.on('seekablechanged', fixesBadSeeksHandler);
+ this.tech_.on('waiting', waitingHandler);
+ this.tech_.on(timerCancelEvents, cancelTimerHandler);
+ this.tech_.on('canplay', canPlayHandler);
+
+ // Define the dispose function to clean up our events
+ this.dispose = function () {
+ _this.logger_('dispose');
+ _this.tech_.off('seekablechanged', fixesBadSeeksHandler);
+ _this.tech_.off('waiting', waitingHandler);
+ _this.tech_.off(timerCancelEvents, cancelTimerHandler);
+ _this.tech_.off('canplay', canPlayHandler);
+ if (_this.checkCurrentTimeTimeout_) {
+ window_1.clearTimeout(_this.checkCurrentTimeTimeout_);
+ }
+ _this.cancelTimer_();
+ };
+ }
+
+ /**
+ * Periodically check current time to see if playback stopped
+ *
+ * @private
+ */
+
+ createClass$2(PlaybackWatcher, [{
+ key: 'monitorCurrentTime_',
+ value: function monitorCurrentTime_() {
+ this.checkCurrentTime_();
+
+ if (this.checkCurrentTimeTimeout_) {
+ window_1.clearTimeout(this.checkCurrentTimeTimeout_);
+ }
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ this.checkCurrentTimeTimeout_ = window_1.setTimeout(this.monitorCurrentTime_.bind(this), 250);
+ }
+
+ /**
+ * The purpose of this function is to emulate the "waiting" event on
+ * browsers that do not emit it when they are waiting for more
+ * data to continue playback
+ *
+ * @private
+ */
+
+ }, {
+ key: 'checkCurrentTime_',
+ value: function checkCurrentTime_() {
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = this.tech_.currentTime();
+ return;
+ }
+
+ if (this.tech_.paused() || this.tech_.seeking()) {
+ return;
+ }
+
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
+ // If current time is at the end of the final buffered region, then any playback
+ // stall is most likely caused by buffering in a low bandwidth environment. The tech
+ // should fire a `waiting` event in this scenario, but due to browser and tech
+ // inconsistencies. Calling `techWaiting_` here allows us to simulate
+ // responding to a native `waiting` event when the tech fails to emit one.
+ return this.techWaiting_();
+ }
+
+ if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ this.waiting_();
+ } else if (currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ } else {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = currentTime;
+ }
+ }
+
+ /**
+ * Cancels any pending timers and resets the 'timeupdate' mechanism
+ * designed to detect that we are stalled
+ *
+ * @private
+ */
+
+ }, {
+ key: 'cancelTimer_',
+ value: function cancelTimer_() {
+ this.consecutiveUpdates = 0;
+
+ if (this.timer_) {
+ this.logger_('cancelTimer_');
+ clearTimeout(this.timer_);
+ }
+
+ this.timer_ = null;
+ }
+
+ /**
+ * Fixes situations where there's a bad seek
+ *
+ * @return {Boolean} whether an action was taken to fix the seek
+ * @private
+ */
+
+ }, {
+ key: 'fixesBadSeeks_',
+ value: function fixesBadSeeks_() {
+ var seeking = this.tech_.seeking();
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+ var seekTo = void 0;
+
+ if (seeking && this.afterSeekableWindow_(seekable, currentTime)) {
+ var seekableEnd = seekable.end(seekable.length - 1);
+
+ // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
+ seekTo = seekableEnd;
+ }
+
+ if (seeking && this.beforeSeekableWindow_(seekable, currentTime)) {
+ var seekableStart = seekable.start(0);
+
+ // sync to the beginning of the live window
+ // provide a buffer of .1 seconds to handle rounding/imprecise numbers
+ seekTo = seekableStart + SAFE_TIME_DELTA;
+ }
+
+ if (typeof seekTo !== 'undefined') {
+ this.logger_('Trying to seek outside of seekable at time ' + currentTime + ' with ' + ('seekable range ' + printableRange(seekable) + '. Seeking to ') + (seekTo + '.'));
+
+ this.seekTo(seekTo);
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Handler for situations when we determine the player is waiting.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'waiting_',
+ value: function waiting_() {
+ if (this.techWaiting_()) {
+ return;
+ }
+
+ // All tech waiting checks failed. Use last resort correction
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+ var currentRange = findRange(buffered, currentTime);
+
+ // Sometimes the player can stall for unknown reasons within a contiguous buffered
+ // region with no indication that anything is amiss (seen in Firefox). Seeking to
+ // currentTime is usually enough to kickstart the player. This checks that the player
+ // is currently within a buffered region before attempting a corrective seek.
+ // Chrome does not appear to continue `timeupdate` events after a `waiting` event
+ // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
+ // make sure there is ~3 seconds of forward buffer before taking any corrective action
+ // to avoid triggering an `unknownwaiting` event when the network is slow.
+ if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ this.logger_('Stopped at ' + currentTime + ' while inside a buffered region ' + ('[' + currentRange.start(0) + ' -> ' + currentRange.end(0) + ']. Attempting to resume ') + 'playback by seeking to the current time.');
+
+ // unknown waiting corrections may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-unknown-waiting' });
+ return;
+ }
+ }
+
+ /**
+ * Handler for situations when the tech fires a `waiting` event
+ *
+ * @return {Boolean}
+ * True if an action (or none) was needed to correct the waiting. False if no
+ * checks passed
+ * @private
+ */
+
+ }, {
+ key: 'techWaiting_',
+ value: function techWaiting_() {
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ // Tech is seeking or bad seek fixed, no action needed
+ return true;
+ }
+
+ if (this.tech_.seeking() || this.timer_ !== null) {
+ // Tech is seeking or already waiting on another action, no action needed
+ return true;
+ }
+
+ if (this.beforeSeekableWindow_(seekable, currentTime)) {
+ var livePoint = seekable.end(seekable.length - 1);
+
+ this.logger_('Fell out of live window at time ' + currentTime + '. Seeking to ' + ('live point (seekable end) ' + livePoint));
+ this.cancelTimer_();
+ this.seekTo(livePoint);
+
+ // live window resyncs may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-live-resync' });
+ return true;
+ }
+
+ var buffered = this.tech_.buffered();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ if (this.videoUnderflow_(nextRange, buffered, currentTime)) {
+ // Even though the video underflowed and was stuck in a gap, the audio overplayed
+ // the gap, leading currentTime into a buffered range. Seeking to currentTime
+ // allows the video to catch up to the audio position without losing any audio
+ // (only suffering ~3 seconds of frozen video and a pause in audio playback).
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ // video underflow may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-video-underflow' });
+ return true;
+ }
+
+ // check for gap
+ if (nextRange.length > 0) {
+ var difference = nextRange.start(0) - currentTime;
+
+ this.logger_('Stopped at ' + currentTime + ', setting timer for ' + difference + ', seeking ' + ('to ' + nextRange.start(0)));
+
+ this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);
+ return true;
+ }
+
+ // All checks failed. Returning false to indicate failure to correct waiting
+ return false;
+ }
+ }, {
+ key: 'afterSeekableWindow_',
+ value: function afterSeekableWindow_(seekable, currentTime) {
+ if (!seekable.length) {
+ // we can't make a solid case if there's no seekable, default to false
+ return false;
+ }
+
+ if (currentTime > seekable.end(seekable.length - 1) + SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'beforeSeekableWindow_',
+ value: function beforeSeekableWindow_(seekable, currentTime) {
+ if (seekable.length &&
+ // can't fall before 0 and 0 seekable start identifies VOD stream
+ seekable.start(0) > 0 && currentTime < seekable.start(0) - SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'videoUnderflow_',
+ value: function videoUnderflow_(nextRange, buffered, currentTime) {
+ if (nextRange.length === 0) {
+ // Even if there is no available next range, there is still a possibility we are
+ // stuck in a gap due to video underflow.
+ var gap = this.gapFromVideoUnderflow_(buffered, currentTime);
+
+ if (gap) {
+ this.logger_('Encountered a gap in video from ' + gap.start + ' to ' + gap.end + '. ' + ('Seeking to current time ' + currentTime));
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Timer callback. If playback still has not proceeded, then we seek
+ * to the start of the next buffered region.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'skipTheGap_',
+ value: function skipTheGap_(scheduledCurrentTime) {
+ var buffered = this.tech_.buffered();
+ var currentTime = this.tech_.currentTime();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ this.cancelTimer_();
+
+ if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
+ return;
+ }
+
+ this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0));
+
+ // only seek if we still have not played
+ this.seekTo(nextRange.start(0) + TIME_FUDGE_FACTOR);
+
+ this.tech_.trigger({ type: 'usage', name: 'hls-gap-skip' });
+ }
+ }, {
+ key: 'gapFromVideoUnderflow_',
+ value: function gapFromVideoUnderflow_(buffered, currentTime) {
+ // At least in Chrome, if there is a gap in the video buffer, the audio will continue
+ // playing for ~3 seconds after the video gap starts. This is done to account for
+ // video buffer underflow/underrun (note that this is not done when there is audio
+ // buffer underflow/underrun -- in that case the video will stop as soon as it
+ // encounters the gap, as audio stalls are more noticeable/jarring to a user than
+ // video stalls). The player's time will reflect the playthrough of audio, so the
+ // time will appear as if we are in a buffered region, even if we are stuck in a
+ // "gap."
+ //
+ // Example:
+ // video buffer: 0 => 10.1, 10.2 => 20
+ // audio buffer: 0 => 20
+ // overall buffer: 0 => 10.1, 10.2 => 20
+ // current time: 13
+ //
+ // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
+ // however, the audio continued playing until it reached ~3 seconds past the gap
+ // (13 seconds), at which point it stops as well. Since current time is past the
+ // gap, findNextRange will return no ranges.
+ //
+ // To check for this issue, we see if there is a gap that starts somewhere within
+ // a 3 second range (3 seconds +/- 1 second) back from our current time.
+ var gaps = findGaps(buffered);
+
+ for (var i = 0; i < gaps.length; i++) {
+ var start = gaps.start(i);
+ var end = gaps.end(i);
+
+ // gap is starts no more than 4 seconds back
+ if (currentTime - start < 4 && currentTime - start > 2) {
+ return {
+ start: start,
+ end: end
+ };
+ }
+ }
+
+ return null;
+ }
+ }]);
+ return PlaybackWatcher;
+ }();
+
+ var defaultOptions = {
+ errorInterval: 30,
+ getSource: function getSource(next) {
+ var tech = this.tech({ IWillNotUseThisInPlugins: true });
+ var sourceObj = tech.currentSource_;
+
+ return next(sourceObj);
+ }
+ };
+
+ /**
+ * Main entry point for the plugin
+ *
+ * @param {Player} player a reference to a videojs Player instance
+ * @param {Object} [options] an object with plugin options
+ * @private
+ */
+ var initPlugin = function initPlugin(player, options) {
+ var lastCalled = 0;
+ var seekTo = 0;
+ var localOptions = videojs$1.mergeOptions(defaultOptions, options);
+
+ player.ready(function () {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-initialized' });
+ });
+
+ /**
+ * Player modifications to perform that must wait until `loadedmetadata`
+ * has been triggered
+ *
+ * @private
+ */
+ var loadedMetadataHandler = function loadedMetadataHandler() {
+ if (seekTo) {
+ player.currentTime(seekTo);
+ }
+ };
+
+ /**
+ * Set the source on the player element, play, and seek if necessary
+ *
+ * @param {Object} sourceObj An object specifying the source url and mime-type to play
+ * @private
+ */
+ var setSource = function setSource(sourceObj) {
+ if (sourceObj === null || sourceObj === undefined) {
+ return;
+ }
+ seekTo = player.duration() !== Infinity && player.currentTime() || 0;
+
+ player.one('loadedmetadata', loadedMetadataHandler);
+
+ player.src(sourceObj);
+ player.trigger({ type: 'usage', name: 'hls-error-reload' });
+ player.play();
+ };
+
+ /**
+ * Attempt to get a source from either the built-in getSource function
+ * or a custom function provided via the options
+ *
+ * @private
+ */
+ var errorHandler = function errorHandler() {
+ // Do not attempt to reload the source if a source-reload occurred before
+ // 'errorInterval' time has elapsed since the last source-reload
+ if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-canceled' });
+ return;
+ }
+
+ if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
+ videojs$1.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
+ return;
+ }
+ lastCalled = Date.now();
+
+ return localOptions.getSource.call(player, setSource);
+ };
+
+ /**
+ * Unbind any event handlers that were bound by the plugin
+ *
+ * @private
+ */
+ var cleanupEvents = function cleanupEvents() {
+ player.off('loadedmetadata', loadedMetadataHandler);
+ player.off('error', errorHandler);
+ player.off('dispose', cleanupEvents);
+ };
+
+ /**
+ * Cleanup before re-initializing the plugin
+ *
+ * @param {Object} [newOptions] an object with plugin options
+ * @private
+ */
+ var reinitPlugin = function reinitPlugin(newOptions) {
+ cleanupEvents();
+ initPlugin(player, newOptions);
+ };
+
+ player.on('error', errorHandler);
+ player.on('dispose', cleanupEvents);
+
+ // Overwrite the plugin function so that we can correctly cleanup before
+ // initializing the plugin
+ player.reloadSourceOnError = reinitPlugin;
+ };
+
+ /**
+ * Reload the source when an error is detected as long as there
+ * wasn't an error previously within the last 30 seconds
+ *
+ * @param {Object} [options] an object with plugin options
+ */
+ var reloadSourceOnError = function reloadSourceOnError(options) {
+ initPlugin(this, options);
+ };
+
+ var version$3 = "1.2.6";
+
+ // since VHS handles HLS and DASH (and in the future, more types), use * to capture all
+ videojs$1.use('*', function (player) {
+ return {
+ setSource: function setSource(srcObj, next) {
+ // pass null as the first argument to indicate that the source is not rejected
+ next(null, srcObj);
+ },
+
+ // VHS needs to know when seeks happen. For external seeks (generated at the player
+ // level), this middleware will capture the action. For internal seeks (generated at
+ // the tech level), we use a wrapped function so that we can handle it on our own
+ // (specified elsewhere).
+ setCurrentTime: function setCurrentTime(time) {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(time);
+ }
+
+ return time;
+ },
+
+ // Sync VHS after play requests.
+ // This specifically handles replay where the order of actions is
+ // play, video element will seek to 0 (skipping the setCurrentTime middleware)
+ // then triggers a play event.
+ play: function play() {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(player.currentTime());
+ }
+ }
+ };
+ });
+
+ /**
+ * @file videojs-http-streaming.js
+ *
+ * The main file for the HLS project.
+ * License: https://github.com/videojs/videojs-http-streaming/blob/master/LICENSE
+ */
+
+ var Hls$1 = {
+ PlaylistLoader: PlaylistLoader,
+ Playlist: Playlist,
+ Decrypter: Decrypter,
+ AsyncStream: AsyncStream,
+ decrypt: decrypt,
+ utils: utils,
+
+ STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
+ INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
+ comparePlaylistBandwidth: comparePlaylistBandwidth,
+ comparePlaylistResolution: comparePlaylistResolution,
+
+ xhr: xhrFactory()
+ };
+
+ // 0.5 MB/s
+ var INITIAL_BANDWIDTH = 4194304;
+
+ // Define getter/setters for config properites
+ ['GOAL_BUFFER_LENGTH', 'MAX_GOAL_BUFFER_LENGTH', 'GOAL_BUFFER_LENGTH_RATE', 'BUFFER_LOW_WATER_LINE', 'MAX_BUFFER_LOW_WATER_LINE', 'BUFFER_LOW_WATER_LINE_RATE', 'BANDWIDTH_VARIANCE'].forEach(function (prop) {
+ Object.defineProperty(Hls$1, prop, {
+ get: function get$$1() {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+ return Config[prop];
+ },
+ set: function set$$1(value) {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+
+ if (typeof value !== 'number' || value < 0) {
+ videojs$1.log.warn('value of Hls.' + prop + ' must be greater than or equal to 0');
+ return;
+ }
+
+ Config[prop] = value;
+ }
+ });
+ });
+
+ var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
+ var mpegurlRE = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
+
+ if (mpegurlRE.test(type)) {
+ return 'hls';
+ }
+
+ var dashRE = /^application\/dash\+xml/i;
+
+ if (dashRE.test(type)) {
+ return 'dash';
+ }
+
+ return null;
+ };
+
+ /**
+ * Updates the selectedIndex of the QualityLevelList when a mediachange happens in hls.
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
+ * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
+ * @function handleHlsMediaChange
+ */
+ var handleHlsMediaChange = function handleHlsMediaChange(qualityLevels, playlistLoader) {
+ var newPlaylist = playlistLoader.media();
+ var selectedIndex = -1;
+
+ for (var i = 0; i < qualityLevels.length; i++) {
+ if (qualityLevels[i].id === newPlaylist.uri) {
+ selectedIndex = i;
+ break;
+ }
+ }
+
+ qualityLevels.selectedIndex_ = selectedIndex;
+ qualityLevels.trigger({
+ selectedIndex: selectedIndex,
+ type: 'change'
+ });
+ };
+
+ /**
+ * Adds quality levels to list once playlist metadata is available
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
+ * @param {Object} hls Hls object to listen to for media events.
+ * @function handleHlsLoadedMetadata
+ */
+ var handleHlsLoadedMetadata = function handleHlsLoadedMetadata(qualityLevels, hls) {
+ hls.representations().forEach(function (rep) {
+ qualityLevels.addQualityLevel(rep);
+ });
+ handleHlsMediaChange(qualityLevels, hls.playlists);
+ };
+
+ // HLS is a source handler, not a tech. Make sure attempts to use it
+ // as one do not cause exceptions.
+ Hls$1.canPlaySource = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+ };
+
+ var emeKeySystems = function emeKeySystems(keySystemOptions, videoPlaylist, audioPlaylist) {
+ if (!keySystemOptions) {
+ return keySystemOptions;
+ }
+
+ // upsert the content types based on the selected playlist
+ var keySystemContentTypes = {};
+
+ for (var keySystem in keySystemOptions) {
+ keySystemContentTypes[keySystem] = {
+ audioContentType: 'audio/mp4; codecs="' + audioPlaylist.attributes.CODECS + '"',
+ videoContentType: 'video/mp4; codecs="' + videoPlaylist.attributes.CODECS + '"'
+ };
+
+ if (videoPlaylist.contentProtection && videoPlaylist.contentProtection[keySystem] && videoPlaylist.contentProtection[keySystem].pssh) {
+ keySystemContentTypes[keySystem].pssh = videoPlaylist.contentProtection[keySystem].pssh;
+ }
+
+ // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
+ // so we need to prevent overwriting the URL entirely
+ if (typeof keySystemOptions[keySystem] === 'string') {
+ keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
+ }
+ }
+
+ return videojs$1.mergeOptions(keySystemOptions, keySystemContentTypes);
+ };
+
+ var setupEmeOptions = function setupEmeOptions(hlsHandler) {
+ if (hlsHandler.options_.sourceType !== 'dash') {
+ return;
+ }
+ var player = videojs$1.players[hlsHandler.tech_.options_.playerId];
+
+ if (player.eme) {
+ var sourceOptions = emeKeySystems(hlsHandler.source_.keySystems, hlsHandler.playlists.media(), hlsHandler.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());
+
+ if (sourceOptions) {
+ player.currentSource().keySystems = sourceOptions;
+ }
+ }
+ };
+
+ /**
+ * Whether the browser has built-in HLS support.
+ */
+ Hls$1.supportsNativeHls = function () {
+ var video = document_1.createElement('video');
+
+ // native HLS is definitely not supported if HTML5 video isn't
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ // HLS manifests can go by many mime-types
+ var canPlay = [
+ // Apple santioned
+ 'application/vnd.apple.mpegurl',
+ // Apple sanctioned for backwards compatibility
+ 'audio/mpegurl',
+ // Very common
+ 'audio/x-mpegurl',
+ // Very common
+ 'application/x-mpegurl',
+ // Included for completeness
+ 'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
+
+ return canPlay.some(function (canItPlay) {
+ return (/maybe|probably/i.test(video.canPlayType(canItPlay))
+ );
+ });
+ }();
+
+ Hls$1.supportsNativeDash = function () {
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ return (/maybe|probably/i.test(document_1.createElement('video').canPlayType('application/dash+xml'))
+ );
+ }();
+
+ Hls$1.supportsTypeNatively = function (type) {
+ if (type === 'hls') {
+ return Hls$1.supportsNativeHls;
+ }
+
+ if (type === 'dash') {
+ return Hls$1.supportsNativeDash;
+ }
+
+ return false;
+ };
+
+ /**
+ * HLS is a source handler, not a tech. Make sure attempts to use it
+ * as one do not cause exceptions.
+ */
+ Hls$1.isSupported = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+ };
+
+ var Component$1 = videojs$1.getComponent('Component');
+
+ /**
+ * The Hls Handler object, where we orchestrate all of the parts
+ * of HLS to interact with video.js
+ *
+ * @class HlsHandler
+ * @extends videojs.Component
+ * @param {Object} source the soruce object
+ * @param {Tech} tech the parent tech object
+ * @param {Object} options optional and required options
+ */
+
+ var HlsHandler = function (_Component) {
+ inherits$3(HlsHandler, _Component);
+
+ function HlsHandler(source, tech, options) {
+ classCallCheck$3(this, HlsHandler);
+
+ // tech.player() is deprecated but setup a reference to HLS for
+ // backwards-compatibility
+ var _this = possibleConstructorReturn$3(this, (HlsHandler.__proto__ || Object.getPrototypeOf(HlsHandler)).call(this, tech, options.hls));
+
+ if (tech.options_ && tech.options_.playerId) {
+ var _player = videojs$1(tech.options_.playerId);
+
+ if (!_player.hasOwnProperty('hls')) {
+ Object.defineProperty(_player, 'hls', {
+ get: function get$$1() {
+ videojs$1.log.warn('player.hls is deprecated. Use player.tech().hls instead.');
+ tech.trigger({ type: 'usage', name: 'hls-player-access' });
+ return _this;
+ }
+ });
+ }
+
+ // Set up a reference to the HlsHandler from player.vhs. This allows users to start
+ // migrating from player.tech_.hls... to player.vhs... for API access. Although this
+ // isn't the most appropriate form of reference for video.js (since all APIs should
+ // be provided through core video.js), it is a common pattern for plugins, and vhs
+ // will act accordingly.
+ _player.vhs = _this;
+ // deprecated, for backwards compatibility
+ _player.dash = _this;
+ }
+
+ _this.tech_ = tech;
+ _this.source_ = source;
+ _this.stats = {};
+ _this.setOptions_();
+
+ if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
+ tech.overrideNativeAudioTracks(true);
+ tech.overrideNativeVideoTracks(true);
+ } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
+ // overriding native HLS only works if audio tracks have been emulated
+ // error early if we're misconfigured
+ throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');
+ }
+
+ // listen for fullscreenchange events for this player so that we
+ // can adjust our quality selection quickly
+ _this.on(document_1, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {
+ var fullscreenElement = document_1.fullscreenElement || document_1.webkitFullscreenElement || document_1.mozFullScreenElement || document_1.msFullscreenElement;
+
+ if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {
+ _this.masterPlaylistController_.smoothQualityChange_();
+ }
+ });
+ _this.on(_this.tech_, 'error', function () {
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.pauseLoading();
+ }
+ });
+
+ _this.on(_this.tech_, 'play', _this.play);
+ return _this;
+ }
+
+ createClass$2(HlsHandler, [{
+ key: 'setOptions_',
+ value: function setOptions_() {
+ var _this2 = this;
+
+ // defaults
+ this.options_.withCredentials = this.options_.withCredentials || false;
+
+ if (typeof this.options_.blacklistDuration !== 'number') {
+ this.options_.blacklistDuration = 5 * 60;
+ }
+
+ // start playlist selection at a reasonable bandwidth for
+ // broadband internet (0.5 MB/s) or mobile (0.0625 MB/s)
+ if (typeof this.options_.bandwidth !== 'number') {
+ this.options_.bandwidth = INITIAL_BANDWIDTH;
+ }
+
+ // If the bandwidth number is unchanged from the initial setting
+ // then this takes precedence over the enableLowInitialPlaylist option
+ this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === INITIAL_BANDWIDTH;
+
+ // grab options passed to player.src
+ ['withCredentials', 'bandwidth'].forEach(function (option) {
+ if (typeof _this2.source_[option] !== 'undefined') {
+ _this2.options_[option] = _this2.source_[option];
+ }
+ });
+
+ this.bandwidth = this.options_.bandwidth;
+ }
+ /**
+ * called when player.src gets called, handle a new source
+ *
+ * @param {Object} src the source object to handle
+ */
+
+ }, {
+ key: 'src',
+ value: function src(_src, type) {
+ var _this3 = this;
+
+ // do nothing if the src is falsey
+ if (!_src) {
+ return;
+ }
+ this.setOptions_();
+ // add master playlist controller options
+ this.options_.url = this.source_.src;
+ this.options_.tech = this.tech_;
+ this.options_.externHls = Hls$1;
+ this.options_.sourceType = simpleTypeFromSourceType(type);
+ // Whenever we seek internally, we should update both the tech and call our own
+ // setCurrentTime function. This is needed because "seeking" events aren't always
+ // reliable. External seeks (via the player object) are handled via middleware.
+ this.options_.seekTo = function (time) {
+ _this3.tech_.setCurrentTime(time);
+ _this3.setCurrentTime(time);
+ };
+
+ this.masterPlaylistController_ = new MasterPlaylistController(this.options_);
+ this.playbackWatcher_ = new PlaybackWatcher(videojs$1.mergeOptions(this.options_, {
+ seekable: function seekable$$1() {
+ return _this3.seekable();
+ }
+ }));
+
+ this.masterPlaylistController_.on('error', function () {
+ var player = videojs$1.players[_this3.tech_.options_.playerId];
+
+ player.error(_this3.masterPlaylistController_.error);
+ });
+
+ // `this` in selectPlaylist should be the HlsHandler for backwards
+ // compatibility with < v2
+ this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : Hls$1.STANDARD_PLAYLIST_SELECTOR.bind(this);
+
+ this.masterPlaylistController_.selectInitialPlaylist = Hls$1.INITIAL_PLAYLIST_SELECTOR.bind(this);
+
+ // re-expose some internal objects for backwards compatibility with < v2
+ this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;
+ this.mediaSource = this.masterPlaylistController_.mediaSource;
+
+ // Proxy assignment of some properties to the master playlist
+ // controller. Using a custom property for backwards compatibility
+ // with < v2
+ Object.defineProperties(this, {
+ selectPlaylist: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.selectPlaylist;
+ },
+ set: function set$$1(selectPlaylist) {
+ this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);
+ }
+ },
+ throughput: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;
+ },
+ set: function set$$1(throughput) {
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput;
+ // By setting `count` to 1 the throughput value becomes the starting value
+ // for the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;
+ }
+ },
+ bandwidth: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.bandwidth;
+ },
+ set: function set$$1(bandwidth) {
+ this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth;
+ // setting the bandwidth manually resets the throughput counter
+ // `count` is set to zero that current value of `rate` isn't included
+ // in the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput = {
+ rate: 0,
+ count: 0
+ };
+ }
+ },
+ /**
+ * `systemBandwidth` is a combination of two serial processes bit-rates. The first
+ * is the network bitrate provided by `bandwidth` and the second is the bitrate of
+ * the entire process after that - decryption, transmuxing, and appending - provided
+ * by `throughput`.
+ *
+ * Since the two process are serial, the overall system bandwidth is given by:
+ * sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+ */
+ systemBandwidth: {
+ get: function get$$1() {
+ var invBandwidth = 1 / (this.bandwidth || 1);
+ var invThroughput = void 0;
+
+ if (this.throughput > 0) {
+ invThroughput = 1 / this.throughput;
+ } else {
+ invThroughput = 0;
+ }
+
+ var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
+
+ return systemBitrate;
+ },
+ set: function set$$1() {
+ videojs$1.log.error('The "systemBandwidth" property is read-only');
+ }
+ }
+ });
+
+ Object.defineProperties(this.stats, {
+ bandwidth: {
+ get: function get$$1() {
+ return _this3.bandwidth || 0;
+ },
+ enumerable: true
+ },
+ mediaRequests: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequests_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsAborted: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsTimedout: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsErrored: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;
+ },
+ enumerable: true
+ },
+ mediaTransferDuration: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;
+ },
+ enumerable: true
+ },
+ mediaBytesTransferred: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;
+ },
+ enumerable: true
+ },
+ mediaSecondsLoaded: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;
+ },
+ enumerable: true
+ },
+ buffered: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.buffered());
+ },
+ enumerable: true
+ },
+ currentTime: {
+ get: function get$$1() {
+ return _this3.tech_.currentTime();
+ },
+ enumerable: true
+ },
+ currentSource: {
+ get: function get$$1() {
+ return _this3.tech_.currentSource_;
+ },
+ enumerable: true
+ },
+ currentTech: {
+ get: function get$$1() {
+ return _this3.tech_.name_;
+ },
+ enumerable: true
+ },
+ duration: {
+ get: function get$$1() {
+ return _this3.tech_.duration();
+ },
+ enumerable: true
+ },
+ master: {
+ get: function get$$1() {
+ return _this3.playlists.master;
+ },
+ enumerable: true
+ },
+ playerDimensions: {
+ get: function get$$1() {
+ return _this3.tech_.currentDimensions();
+ },
+ enumerable: true
+ },
+ seekable: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.seekable());
+ },
+ enumerable: true
+ },
+ timestamp: {
+ get: function get$$1() {
+ return Date.now();
+ },
+ enumerable: true
+ },
+ videoPlaybackQuality: {
+ get: function get$$1() {
+ return _this3.tech_.getVideoPlaybackQuality();
+ },
+ enumerable: true
+ }
+ });
+
+ this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ // Add the manual rendition mix-in to HlsHandler
+ renditionSelectionMixin(_this3);
+ setupEmeOptions(_this3);
+ });
+
+ // the bandwidth of the primary segment loader is our best
+ // estimate of overall bandwidth
+ this.on(this.masterPlaylistController_, 'progress', function () {
+ this.tech_.trigger('progress');
+ });
+
+ this.tech_.ready(function () {
+ return _this3.setupQualityLevels_();
+ });
+
+ // do nothing if the tech has been disposed already
+ // this can occur if someone sets the src in player.ready(), for instance
+ if (!this.tech_.el()) {
+ return;
+ }
+
+ this.tech_.src(videojs$1.URL.createObjectURL(this.masterPlaylistController_.mediaSource));
+ }
+
+ /**
+ * Initializes the quality levels and sets listeners to update them.
+ *
+ * @method setupQualityLevels_
+ * @private
+ */
+
+ }, {
+ key: 'setupQualityLevels_',
+ value: function setupQualityLevels_() {
+ var _this4 = this;
+
+ var player = videojs$1.players[this.tech_.options_.playerId];
+
+ if (player && player.qualityLevels) {
+ this.qualityLevels_ = player.qualityLevels();
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ handleHlsLoadedMetadata(_this4.qualityLevels_, _this4);
+ });
+
+ this.playlists.on('mediachange', function () {
+ handleHlsMediaChange(_this4.qualityLevels_, _this4.playlists);
+ });
+ }
+ }
+
+ /**
+ * Begin playing the video.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ this.masterPlaylistController_.play();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ this.masterPlaylistController_.setCurrentTime(currentTime);
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ return this.masterPlaylistController_.duration();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.masterPlaylistController_.seekable();
+ }
+
+ /**
+ * Abort all outstanding work and cleanup.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ if (this.playbackWatcher_) {
+ this.playbackWatcher_.dispose();
+ }
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.dispose();
+ }
+ if (this.qualityLevels_) {
+ this.qualityLevels_.dispose();
+ }
+ get$2(HlsHandler.prototype.__proto__ || Object.getPrototypeOf(HlsHandler.prototype), 'dispose', this).call(this);
+ }
+ }]);
+ return HlsHandler;
+ }(Component$1);
+
+ /**
+ * The Source Handler object, which informs video.js what additional
+ * MIME types are supported and sets up playback. It is registered
+ * automatically to the appropriate tech based on the capabilities of
+ * the browser it is running in. It is not necessary to use or modify
+ * this object in normal usage.
+ */
+
+ var HlsSourceHandler = {
+ name: 'videojs-http-streaming',
+ VERSION: version$3,
+ canHandleSource: function canHandleSource(srcObj) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ return HlsSourceHandler.canPlayType(srcObj.type, localOptions);
+ },
+ handleSource: function handleSource(source, tech) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ tech.hls = new HlsHandler(source, tech, localOptions);
+ tech.hls.xhr = xhrFactory();
+
+ tech.hls.src(source.src, source.type);
+ return tech.hls;
+ },
+ canPlayType: function canPlayType(type) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var _videojs$mergeOptions = videojs$1.mergeOptions(videojs$1.options, options),
+ overrideNative = _videojs$mergeOptions.hls.overrideNative;
+
+ var supportedType = simpleTypeFromSourceType(type);
+ var canUseMsePlayback = supportedType && (!Hls$1.supportsTypeNatively(supportedType) || overrideNative);
+
+ return canUseMsePlayback ? 'maybe' : '';
+ }
+ };
+
+ if (typeof videojs$1.MediaSource === 'undefined' || typeof videojs$1.URL === 'undefined') {
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+ }
+
+ // register source handlers with the appropriate techs
+ if (MediaSource.supportsNativeMediaSources()) {
+ videojs$1.getTech('Html5').registerSourceHandler(HlsSourceHandler, 0);
+ }
+
+ videojs$1.HlsHandler = HlsHandler;
+ videojs$1.HlsSourceHandler = HlsSourceHandler;
+ videojs$1.Hls = Hls$1;
+ if (!videojs$1.use) {
+ videojs$1.registerComponent('Hls', Hls$1);
+ }
+ videojs$1.options.hls = videojs$1.options.hls || {};
+
+ if (videojs$1.registerPlugin) {
+ videojs$1.registerPlugin('reloadSourceOnError', reloadSourceOnError);
+ } else {
+ videojs$1.plugin('reloadSourceOnError', reloadSourceOnError);
+ }
+
+ return videojs$1;
+
+})));
diff --git a/assets/netcut/lib/videojs/alt/video.novtt.min.js b/assets/netcut/lib/videojs/alt/video.novtt.min.js
new file mode 100644
index 0000000..49c7a68
--- /dev/null
+++ b/assets/netcut/lib/videojs/alt/video.novtt.min.js
@@ -0,0 +1,12 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
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0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:this.children_.length,n=void 0,r=void 0;if("string"==typeof t){r=Wt(t);var a=e.componentClass||r;e.name=r;var s=l.getComponent(a);if(!s)throw new Error("Component "+a+" does not exist");if("function"!=typeof s)return null;n=new s(this.player_||this,e)}else n=t;if(this.children_.splice(i,0,n),"function"==typeof n.id&&(this.childIndex_[n.id()]=n),(r=r||n.name&&Wt(n.name()))&&(this.childNameIndex_[r]=n),"function"==typeof n.el&&n.el()){var o=this.contentEl().children[i]||null;this.contentEl().insertBefore(n.el(),o)}return n},l.prototype.removeChild=function(t){if("string"==typeof t&&(t=this.getChild(t)),t&&this.children_){for(var e=!1,i=this.children_.length-1;0<=i;i--)if(this.children_[i]===t){e=!0,this.children_.splice(i,1);break}if(e){this.childIndex_[t.id()]=null,this.childNameIndex_[t.name()]=null;var n=t.el();n&&n.parentNode===this.contentEl()&&this.contentEl().removeChild(t.el())}}},l.prototype.initChildren=function(){var r=this,n=this.options_.children;if(n){var a=this.options_,t=void 0,i=l.getComponent("Tech");(t=Array.isArray(n)?n:Object.keys(n)).concat(Object.keys(this.options_).filter(function(e){return!t.some(function(t){return"string"==typeof t?e===t:e===t.name})})).map(function(t){var e=void 0,i=void 0;return"string"==typeof t?i=n[e=t]||r.options_[e]||{}:(e=t.name,i=t),{name:e,opts:i}}).filter(function(t){var e=l.getComponent(t.opts.componentClass||Wt(t.name));return e&&!i.isTech(e)}).forEach(function(t){var e=t.name,i=t.opts;if(void 0!==a[e]&&(i=a[e]),!1!==i){!0===i&&(i={}),i.playerOptions=r.options_.playerOptions;var n=r.addChild(e,i);n&&(r[e]=n)}})}},l.prototype.buildCSSClass=function(){return""},l.prototype.ready=function(t){var e=1<arguments.length&&void 0!==arguments[1]&&arguments[1];if(t)return this.isReady_?void(e?t.call(this):this.setTimeout(t,1)):(this.readyQueue_=this.readyQueue_||[],void this.readyQueue_.push(t))},l.prototype.triggerReady=function(){this.isReady_=!0,this.setTimeout(function(){var t=this.readyQueue_;this.readyQueue_=[],t&&0<t.length&&t.forEach(function(t){t.call(this)},this),this.trigger("ready")},1)},l.prototype.$=function(t,e){return nt(t,e||this.contentEl())},l.prototype.$$=function(t,e){return rt(t,e||this.contentEl())},l.prototype.hasClass=function(t){return N(this.el_,t)},l.prototype.addClass=function(t){B(this.el_,t)},l.prototype.removeClass=function(t){j(this.el_,t)},l.prototype.toggleClass=function(t,e){F(this.el_,t,e)},l.prototype.show=function(){this.removeClass("vjs-hidden")},l.prototype.hide=function(){this.addClass("vjs-hidden")},l.prototype.lockShowing=function(){this.addClass("vjs-lock-showing")},l.prototype.unlockShowing=function(){this.removeClass("vjs-lock-showing")},l.prototype.getAttribute=function(t){return q(this.el_,t)},l.prototype.setAttribute=function(t,e){z(this.el_,t,e)},l.prototype.removeAttribute=function(t){W(this.el_,t)},l.prototype.width=function(t,e){return this.dimension("width",t,e)},l.prototype.height=function(t,e){return this.dimension("height",t,e)},l.prototype.dimensions=function(t,e){this.width(t,!0),this.height(e)},l.prototype.dimension=function(t,e,i){if(void 0!==e)return null!==e&&e==e||(e=0),-1!==(""+e).indexOf("%")||-1!==(""+e).indexOf("px")?this.el_.style[t]=e:this.el_.style[t]="auto"===e?"":e+"px",void(i||this.trigger("componentresize"));if(!this.el_)return 0;var n=this.el_.style[t],r=n.indexOf("px");return-1!==r?parseInt(n.slice(0,r),10):parseInt(this.el_["offset"+Wt(t)],10)},l.prototype.currentDimension=function(t){var e=0;if("width"!==t&&"height"!==t)throw new Error("currentDimension only accepts width or height value");if("function"==typeof g.getComputedStyle){var i=g.getComputedStyle(this.el_);e=i.getPropertyValue(t)||i[t]}if(0===(e=parseFloat(e))){var n="offset"+Wt(t);e=this.el_[n]}return e},l.prototype.currentDimensions=function(){return{width:this.currentDimension("width"),height:this.currentDimension("height")}},l.prototype.currentWidth=function(){return this.currentDimension("width")},l.prototype.currentHeight=function(){return this.currentDimension("height")},l.prototype.focus=function(){this.el_.focus()},l.prototype.blur=function(){this.el_.blur()},l.prototype.emitTapEvents=function(){var e=0,n=null,r=void 0;this.on("touchstart",function(t){1===t.touches.length&&(n={pageX:t.touches[0].pageX,pageY:t.touches[0].pageY},e=(new Date).getTime(),r=!0)}),this.on("touchmove",function(t){if(1<t.touches.length)r=!1;else if(n){var e=t.touches[0].pageX-n.pageX,i=t.touches[0].pageY-n.pageY;10<Math.sqrt(e*e+i*i)&&(r=!1)}});var t=function(){r=!1};this.on("touchleave",t),this.on("touchcancel",t),this.on("touchend",function(t){!(n=null)===r&&((new Date).getTime()-e<200&&(t.preventDefault(),this.trigger("tap")))})},l.prototype.enableTouchActivity=function(){if(this.player()&&this.player().reportUserActivity){var e=Ot(this.player(),this.player().reportUserActivity),i=void 0;this.on("touchstart",function(){e(),this.clearInterval(i),i=this.setInterval(e,250)});var t=function(t){e(),this.clearInterval(i)};this.on("touchmove",e),this.on("touchend",t),this.on("touchcancel",t)}},l.prototype.setTimeout=function(t,e){var i,n,r=this;return t=Ot(this,t),i=g.setTimeout(function(){r.off("dispose",n),t()},e),(n=function(){return r.clearTimeout(i)}).guid="vjs-timeout-"+i,this.on("dispose",n),i},l.prototype.clearTimeout=function(t){g.clearTimeout(t);var e=function(){};return e.guid="vjs-timeout-"+t,this.off("dispose",e),t},l.prototype.setInterval=function(t,e){var i=this;t=Ot(this,t);var n=g.setInterval(t,e),r=function(){return i.clearInterval(n)};return r.guid="vjs-interval-"+n,this.on("dispose",r),n},l.prototype.clearInterval=function(t){g.clearInterval(t);var e=function(){};return e.guid="vjs-interval-"+t,this.off("dispose",e),t},l.prototype.requestAnimationFrame=function(t){var e,i,n=this;return this.supportsRaf_?(t=Ot(this,t),e=g.requestAnimationFrame(function(){n.off("dispose",i),t()}),(i=function(){return n.cancelAnimationFrame(e)}).guid="vjs-raf-"+e,this.on("dispose",i),e):this.setTimeout(t,1e3/60)},l.prototype.cancelAnimationFrame=function(t){if(this.supportsRaf_){g.cancelAnimationFrame(t);var e=function(){};return e.guid="vjs-raf-"+t,this.off("dispose",e),t}return this.clearTimeout(t)},l.registerComponent=function(t,e){if("string"!=typeof t||!t)throw new Error('Illegal component name, "'+t+'"; must be a non-empty string.');var i=l.getComponent("Tech"),n=i&&i.isTech(e),r=l===e||l.prototype.isPrototypeOf(e.prototype);if(n||!r){var a=void 0;throw a=n?"techs must be registered using Tech.registerTech()":"must be a Component subclass",new Error('Illegal component, "'+t+'"; '+a+".")}t=Wt(t),l.components_||(l.components_={});var s=l.getComponent("Player");if("Player"===t&&s&&s.players){var o=s.players,u=Object.keys(o);if(o&&0<u.length&&u.map(function(t){return o[t]}).every(Boolean))throw new Error("Can not register Player component after player has been created.")}return l.components_[t]=e},l.getComponent=function(t){if(t)return t=Wt(t),l.components_&&l.components_[t]?l.components_[t]:void 0},l}();Xt.prototype.supportsRaf_="function"==typeof g.requestAnimationFrame&&"function"==typeof g.cancelAnimationFrame,Xt.registerComponent("Component",Xt);var Yt,$t,Kt,Jt,Qt=g.navigator&&g.navigator.userAgent||"",Zt=/AppleWebKit\/([\d.]+)/i.exec(Qt),te=Zt?parseFloat(Zt.pop()):null,ee=/iPad/i.test(Qt),ie=/iPhone/i.test(Qt)&&!ee,ne=/iPod/i.test(Qt),re=ie||ee||ne,ae=(Yt=Qt.match(/OS (\d+)_/i))&&Yt[1]?Yt[1]:null,se=/Android/i.test(Qt),oe=function(){var t=Qt.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);if(!t)return null;var e=t[1]&&parseFloat(t[1]),i=t[2]&&parseFloat(t[2]);return e&&i?parseFloat(t[1]+"."+t[2]):e||null}(),ue=se&&oe<5&&te<537,le=/Firefox/i.test(Qt),ce=/Edge/i.test(Qt),he=!ce&&(/Chrome/i.test(Qt)||/CriOS/i.test(Qt)),de=($t=Qt.match(/(Chrome|CriOS)\/(\d+)/))&&$t[2]?parseFloat($t[2]):null,pe=(Kt=/MSIE\s(\d+)\.\d/.exec(Qt),!(Jt=Kt&&parseFloat(Kt[1]))&&/Trident\/7.0/i.test(Qt)&&/rv:11.0/.test(Qt)&&(Jt=11),Jt),fe=/Safari/i.test(Qt)&&!he&&!se&&!ce,me=(fe||re)&&!he,ge=P()&&("ontouchstart"in g||g.navigator.maxTouchPoints||g.DocumentTouch&&g.document instanceof g.DocumentTouch),ye=Object.freeze({IS_IPAD:ee,IS_IPHONE:ie,IS_IPOD:ne,IS_IOS:re,IOS_VERSION:ae,IS_ANDROID:se,ANDROID_VERSION:oe,IS_NATIVE_ANDROID:ue,IS_FIREFOX:le,IS_EDGE:ce,IS_CHROME:he,CHROME_VERSION:de,IE_VERSION:pe,IS_SAFARI:fe,IS_ANY_SAFARI:me,TOUCH_ENABLED:ge});function ve(t,e,i,n){return function(t,e,i){if("number"!=typeof e||e<0||i<e)throw new Error("Failed to execute '"+t+"' on 'TimeRanges': The index provided ("+e+") is 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Se={},ke=[["requestFullscreen","exitFullscreen","fullscreenElement","fullscreenEnabled","fullscreenchange","fullscreenerror"],["webkitRequestFullscreen","webkitExitFullscreen","webkitFullscreenElement","webkitFullscreenEnabled","webkitfullscreenchange","webkitfullscreenerror"],["webkitRequestFullScreen","webkitCancelFullScreen","webkitCurrentFullScreenElement","webkitCancelFullScreen","webkitfullscreenchange","webkitfullscreenerror"],["mozRequestFullScreen","mozCancelFullScreen","mozFullScreenElement","mozFullScreenEnabled","mozfullscreenchange","mozfullscreenerror"],["msRequestFullscreen","msExitFullscreen","msFullscreenElement","msFullscreenEnabled","MSFullscreenChange","MSFullscreenError"]],Ce=ke[0],we=void 0,Ae=0;Ae<ke.length;Ae++)if(ke[Ae][1]in p){we=ke[Ae];break}if(we)for(var Le=0;Le<we.length;Le++)Se[Ce[Le]]=we[Le];function Oe(t){if(t instanceof Oe)return t;"number"==typeof t?this.code=t:"string"==typeof t?this.message=t:C(t)&&("number"==typeof t.code&&(this.code=t.code),k(this,t)),this.message||(this.message=Oe.defaultMessages[this.code]||"")}Oe.prototype.code=0,Oe.prototype.message="",Oe.prototype.status=null,Oe.errorTypes=["MEDIA_ERR_CUSTOM","MEDIA_ERR_ABORTED","MEDIA_ERR_NETWORK","MEDIA_ERR_DECODE","MEDIA_ERR_SRC_NOT_SUPPORTED","MEDIA_ERR_ENCRYPTED"],Oe.defaultMessages={1:"You aborted the media playback",2:"A network error caused the media download to fail part-way.",3:"The media playback was aborted due to a corruption problem or because the media used features your browser did not support.",4:"The media could not be loaded, either because the server or network failed or because the format is not supported.",5:"The media is encrypted and we do not have the keys to decrypt it."};for(var Pe=0;Pe<Oe.errorTypes.length;Pe++)Oe[Oe.errorTypes[Pe]]=Pe,Oe.prototype[Oe.errorTypes[Pe]]=Pe;var Ue=function(t,e){var i,n=null;try{i=JSON.parse(t,e)}catch(t){n=t}return[n,i]};function Ie(t){return null!=t&&"function"==typeof t.then}function De(t){Ie(t)&&t.then(null,function(t){})}var xe=function(n){return["kind","label","language","id","inBandMetadataTrackDispatchType","mode","src"].reduce(function(t,e,i){return n[e]&&(t[e]=n[e]),t},{cues:n.cues&&Array.prototype.map.call(n.cues,function(t){return{startTime:t.startTime,endTime:t.endTime,text:t.text,id:t.id}})})},Re=function(t){var e=t.$$("track"),i=Array.prototype.map.call(e,function(t){return t.track});return Array.prototype.map.call(e,function(t){var e=xe(t.track);return t.src&&(e.src=t.src),e}).concat(Array.prototype.filter.call(t.textTracks(),function(t){return-1===i.indexOf(t)}).map(xe))},Me=function(t,i){return t.forEach(function(t){var e=i.addRemoteTextTrack(t).track;!t.src&&t.cues&&t.cues.forEach(function(t){return e.addCue(t)})}),i.textTracks()},Ne="vjs-modal-dialog",Be=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.opened_=i.hasBeenOpened_=i.hasBeenFilled_=!1,i.closeable(!i.options_.uncloseable),i.content(i.options_.content),i.contentEl_=x("div",{className:Ne+"-content"},{role:"document"}),i.descEl_=x("p",{className:Ne+"-description vjs-control-text",id:i.el().getAttribute("aria-describedby")}),R(i.descEl_,i.description()),i.el_.appendChild(i.descEl_),i.el_.appendChild(i.contentEl_),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:this.buildCSSClass(),tabIndex:-1},{"aria-describedby":this.id()+"_description","aria-hidden":"true","aria-label":this.label(),role:"dialog"})},r.prototype.dispose=function(){this.contentEl_=null,this.descEl_=null,this.previouslyActiveEl_=null,n.prototype.dispose.call(this)},r.prototype.buildCSSClass=function(){return Ne+" vjs-hidden "+n.prototype.buildCSSClass.call(this)},r.prototype.handleKeyPress=function(t){27===t.which&&this.closeable()&&this.close()},r.prototype.label=function(){return this.localize(this.options_.label||"Modal Window")},r.prototype.description=function(){var t=this.options_.description||this.localize("This is a modal window.");return this.closeable()&&(t+=" "+this.localize("This modal can be closed by pressing the Escape key or activating the close button.")),t},r.prototype.open=function(){if(!this.opened_){var t=this.player();this.trigger("beforemodalopen"),this.opened_=!0,(this.options_.fillAlways||!this.hasBeenOpened_&&!this.hasBeenFilled_)&&this.fill(),this.wasPlaying_=!t.paused(),this.options_.pauseOnOpen&&this.wasPlaying_&&t.pause(),this.closeable()&&this.on(this.el_.ownerDocument,"keydown",Ot(this,this.handleKeyPress)),this.hadControls_=t.controls(),t.controls(!1),this.show(),this.conditionalFocus_(),this.el().setAttribute("aria-hidden","false"),this.trigger("modalopen"),this.hasBeenOpened_=!0}},r.prototype.opened=function(t){return"boolean"==typeof t&&this[t?"open":"close"](),this.opened_},r.prototype.close=function(){if(this.opened_){var t=this.player();this.trigger("beforemodalclose"),this.opened_=!1,this.wasPlaying_&&this.options_.pauseOnOpen&&t.play(),this.closeable()&&this.off(this.el_.ownerDocument,"keydown",Ot(this,this.handleKeyPress)),this.hadControls_&&t.controls(!0),this.hide(),this.el().setAttribute("aria-hidden","true"),this.trigger("modalclose"),this.conditionalBlur_(),this.options_.temporary&&this.dispose()}},r.prototype.closeable=function(t){if("boolean"==typeof t){var e=this.closeable_=!!t,i=this.getChild("closeButton");if(e&&!i){var n=this.contentEl_;this.contentEl_=this.el_,i=this.addChild("closeButton",{controlText:"Close Modal Dialog"}),this.contentEl_=n,this.on(i,"close",this.close)}!e&&i&&(this.off(i,"close",this.close),this.removeChild(i),i.dispose())}return this.closeable_},r.prototype.fill=function(){this.fillWith(this.content())},r.prototype.fillWith=function(t){var e=this.contentEl(),i=e.parentNode,n=e.nextSibling;this.trigger("beforemodalfill"),this.hasBeenFilled_=!0,i.removeChild(e),this.empty(),et(e,t),this.trigger("modalfill"),n?i.insertBefore(e,n):i.appendChild(e);var r=this.getChild("closeButton");r&&i.appendChild(r.el_)},r.prototype.empty=function(){this.trigger("beforemodalempty"),Q(this.contentEl()),this.trigger("modalempty")},r.prototype.content=function(t){return"undefined"!=typeof t&&(this.content_=t),this.content_},r.prototype.conditionalFocus_=function(){var t=p.activeElement,e=this.player_.el_;this.previouslyActiveEl_=null,(e.contains(t)||e===t)&&(this.previouslyActiveEl_=t,this.focus(),this.on(p,"keydown",this.handleKeyDown))},r.prototype.conditionalBlur_=function(){this.previouslyActiveEl_&&(this.previouslyActiveEl_.focus(),this.previouslyActiveEl_=null),this.off(p,"keydown",this.handleKeyDown)},r.prototype.handleKeyDown=function(t){if(9===t.which){for(var e=this.focusableEls_(),i=this.el_.querySelector(":focus"),n=void 0,r=0;r<e.length;r++)if(i===e[r]){n=r;break}p.activeElement===this.el_&&(n=0),t.shiftKey&&0===n?(e[e.length-1].focus(),t.preventDefault()):t.shiftKey||n!==e.length-1||(e[0].focus(),t.preventDefault())}},r.prototype.focusableEls_=function(){var t=this.el_.querySelectorAll("*");return Array.prototype.filter.call(t,function(t){return(t instanceof g.HTMLAnchorElement||t instanceof g.HTMLAreaElement)&&t.hasAttribute("href")||(t instanceof g.HTMLInputElement||t instanceof g.HTMLSelectElement||t instanceof g.HTMLTextAreaElement||t instanceof g.HTMLButtonElement)&&!t.hasAttribute("disabled")||t instanceof g.HTMLIFrameElement||t instanceof g.HTMLObjectElement||t instanceof g.HTMLEmbedElement||t.hasAttribute("tabindex")&&-1!==t.getAttribute("tabindex")||t.hasAttribute("contenteditable")})},r}(Xt);Be.prototype.options_={pauseOnOpen:!0,temporary:!0},Xt.registerComponent("ModalDialog",Be);var je=function(n){function r(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[];y(this,r);var 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e=wi[t],i=function(){r.trigger(t+"trackchange")},n=r[e.getterName]();n.addEventListener("removetrack",i),n.addEventListener("addtrack",i),r.on("dispose",function(){n.removeEventListener("removetrack",i),n.removeEventListener("addtrack",i)})})},r.prototype.addWebVttScript_=function(){var t=this;if(!g.WebVTT)if(p.body.contains(this.el())){if(!this.options_["vtt.js"]&&w(Li)&&0<Object.keys(Li).length)return void this.trigger("vttjsloaded");var e=p.createElement("script");e.src=this.options_["vtt.js"]||"https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js",e.onload=function(){t.trigger("vttjsloaded")},e.onerror=function(){t.trigger("vttjserror")},this.on("dispose",function(){e.onload=null,e.onerror=null}),g.WebVTT=!0,this.el().parentNode.appendChild(e)}else this.ready(this.addWebVttScript_)},r.prototype.emulateTextTracks=function(){var t=this,i=this.textTracks(),e=this.remoteTextTracks(),n=function(t){return i.addTrack(t.track)},r=function(t){return i.removeTrack(t.track)};e.on("addtrack",n),e.on("removetrack",r),this.addWebVttScript_();var a=function(){return t.trigger("texttrackchange")},s=function(){a();for(var t=0;t<i.length;t++){var e=i[t];e.removeEventListener("cuechange",a),"showing"===e.mode&&e.addEventListener("cuechange",a)}};s(),i.addEventListener("change",s),i.addEventListener("addtrack",s),i.addEventListener("removetrack",s),this.on("dispose",function(){e.off("addtrack",n),e.off("removetrack",r),i.removeEventListener("change",s),i.removeEventListener("addtrack",s),i.removeEventListener("removetrack",s);for(var t=0;t<i.length;t++){i[t].removeEventListener("cuechange",a)}})},r.prototype.addTextTrack=function(t,e,i){if(!t)throw new Error("TextTrack kind is required but was not provided");return function(t,e,i,n){var r=4<arguments.length&&void 0!==arguments[4]?arguments[4]:{},a=t.textTracks();r.kind=e,i&&(r.label=i),n&&(r.language=n),r.tech=t;var s=new Ai.text.TrackClass(r);return a.addTrack(s),s}(this,t,e,i)},r.prototype.createRemoteTextTrack=function(t){var e=Gt(t,{tech:this});return new Ei.remoteTextEl.TrackClass(e)},r.prototype.addRemoteTextTrack=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},i=arguments[1],n=this.createRemoteTextTrack(e);return!0!==i&&!1!==i&&(f.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js'),i=!0),this.remoteTextTrackEls().addTrackElement_(n),this.remoteTextTracks().addTrack(n.track),!0!==i&&this.ready(function(){return t.autoRemoteTextTracks_.addTrack(n.track)}),n},r.prototype.removeRemoteTextTrack=function(t){var e=this.remoteTextTrackEls().getTrackElementByTrack_(t);this.remoteTextTrackEls().removeTrackElement_(e),this.remoteTextTracks().removeTrack(t),this.autoRemoteTextTracks_.removeTrack(t)},r.prototype.getVideoPlaybackQuality=function(){return{}},r.prototype.setPoster=function(){},r.prototype.playsinline=function(){},r.prototype.setPlaysinline=function(){},r.prototype.overrideNativeAudioTracks=function(){},r.prototype.overrideNativeVideoTracks=function(){},r.prototype.canPlayType=function(){return""},r.canPlayType=function(){return""},r.canPlaySource=function(t,e){return r.canPlayType(t.type)},r.isTech=function(t){return t.prototype instanceof r||t instanceof r||t===r},r.registerTech=function(t,e){if(r.techs_||(r.techs_={}),!r.isTech(e))throw new Error("Tech "+t+" must be a Tech");if(!r.canPlayType)throw new Error("Techs must have a static canPlayType method on them");if(!r.canPlaySource)throw new Error("Techs must have a static canPlaySource method on them");return t=Wt(t),r.techs_[t]=e,"Tech"!==t&&r.defaultTechOrder_.push(t),e},r.getTech=function(t){if(t)return t=Wt(t),r.techs_&&r.techs_[t]?r.techs_[t]:g&&g.videojs&&g.videojs[t]?(f.warn("The "+t+" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)"),g.videojs[t]):void 0},r}(Xt);Ai.names.forEach(function(t){var e=Ai[t];Oi.prototype[e.getterName]=function(){return this[e.privateName]=this[e.privateName]||new e.ListClass,this[e.privateName]}}),Oi.prototype.featuresVolumeControl=!0,Oi.prototype.featuresMuteControl=!0,Oi.prototype.featuresFullscreenResize=!1,Oi.prototype.featuresPlaybackRate=!1,Oi.prototype.featuresProgressEvents=!1,Oi.prototype.featuresSourceset=!1,Oi.prototype.featuresTimeupdateEvents=!1,Oi.prototype.featuresNativeTextTracks=!1,Oi.withSourceHandlers=function(r){r.registerSourceHandler=function(t,e){var i=r.sourceHandlers;i||(i=r.sourceHandlers=[]),void 0===e&&(e=i.length),i.splice(e,0,t)},r.canPlayType=function(t){for(var e=r.sourceHandlers||[],i=void 0,n=0;n<e.length;n++)if(i=e[n].canPlayType(t))return i;return""},r.selectSourceHandler=function(t,e){for(var i=r.sourceHandlers||[],n=0;n<i.length;n++)if(i[n].canHandleSource(t,e))return i[n];return null},r.canPlaySource=function(t,e){var i=r.selectSourceHandler(t,e);return i?i.canHandleSource(t,e):""};["seekable","seeking","duration"].forEach(function(t){var e=this[t];"function"==typeof e&&(this[t]=function(){return this.sourceHandler_&&this.sourceHandler_[t]?this.sourceHandler_[t].apply(this.sourceHandler_,arguments):e.apply(this,arguments)})},r.prototype),r.prototype.setSource=function(t){var e=r.selectSourceHandler(t,this.options_);e||(r.nativeSourceHandler?e=r.nativeSourceHandler:f.error("No source handler found for the current source.")),this.disposeSourceHandler(),this.off("dispose",this.disposeSourceHandler),e!==r.nativeSourceHandler&&(this.currentSource_=t),this.sourceHandler_=e.handleSource(t,this,this.options_),this.on("dispose",this.disposeSourceHandler)},r.prototype.disposeSourceHandler=function(){this.currentSource_&&(this.clearTracks(["audio","video"]),this.currentSource_=null),this.cleanupAutoTextTracks(),this.sourceHandler_&&(this.sourceHandler_.dispose&&this.sourceHandler_.dispose(),this.sourceHandler_=null)}},Xt.registerComponent("Tech",Oi),Oi.registerTech("Tech",Oi),Oi.defaultTechOrder_=[];var Pi={},Ui={},Ii={};function Di(t,e,i){t.setTimeout(function(){return function i(){var n=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:[];var r=arguments[2];var a=arguments[3];var s=4<arguments.length&&void 0!==arguments[4]?arguments[4]:[];var o=5<arguments.length&&void 0!==arguments[5]&&arguments[5];var e=t[0],u=t.slice(1);if("string"==typeof e)i(n,Pi[e],r,a,s,o);else if(e){var l=function(t,e){var i=Ui[t.id()],n=null;if(null==i)return n=e(t),Ui[t.id()]=[[e,n]],n;for(var r=0;r<i.length;r++){var a=i[r],s=a[0],o=a[1];s===e&&(n=o)}null===n&&(n=e(t),i.push([e,n]));return n}(a,e);if(!l.setSource)return s.push(l),i(n,u,r,a,s,o);l.setSource(k({},n),function(t,e){if(t)return i(n,u,r,a,s,o);s.push(l),i(e,n.type===e.type?u:Pi[e.type],r,a,s,o)})}else u.length?i(n,u,r,a,s,o):o?r(n,s):i(n,Pi["*"],r,a,s,!0)}(e,Pi[e.type],i,t)},1)}function xi(t,e,i){var n=3<arguments.length&&void 0!==arguments[3]?arguments[3]:null,r="call"+Wt(i),a=t.reduce(Bi(r),n),s=a===Ii,o=s?null:e[i](a);return function(t,e,i,n){for(var r=t.length-1;0<=r;r--){var a=t[r];a[e]&&a[e](n,i)}}(t,i,o,s),o}var Ri={buffered:1,currentTime:1,duration:1,seekable:1,played:1,paused:1},Mi={setCurrentTime:1},Ni={play:1,pause:1};function Bi(i){return function(t,e){return t===Ii?Ii:e[i]?e[i](t):t}}var ji={opus:"video/ogg",ogv:"video/ogg",mp4:"video/mp4",mov:"video/mp4",m4v:"video/mp4",mkv:"video/x-matroska",mp3:"audio/mpeg",aac:"audio/aac",oga:"audio/ogg",m3u8:"application/x-mpegURL"},Fi=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=ei(t);return ji[e.toLowerCase()]||""};function Hi(t){var e=Fi(t.src);return!t.type&&e&&(t.type=e),t}var Vi=function(l){function c(t,e,i){y(this,c);var n=Gt({createEl:!1},e),r=_(this,l.call(this,t,n,i));if(e.playerOptions.sources&&0!==e.playerOptions.sources.length)t.src(e.playerOptions.sources);else for(var a=0,s=e.playerOptions.techOrder;a<s.length;a++){var o=Wt(s[a]),u=Oi.getTech(o);if(o||(u=Xt.getComponent(o)),u&&u.isSupported()){t.loadTech_(o);break}}return r}return v(c,l),c}(Xt);Xt.registerComponent("MediaLoader",Vi);var qi=function(r){function n(t,e){y(this,n);var i=_(this,r.call(this,t,e));return i.emitTapEvents(),i.enable(),i}return v(n,r),n.prototype.createEl=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"div",e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=k({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass(),tabIndex:0},e),"button"===t&&f.error("Creating a ClickableComponent with an HTML element of "+t+" is not supported; use a Button instead."),i=k({role:"button"},i),this.tabIndex_=e.tabIndex;var n=r.prototype.createEl.call(this,t,e,i);return this.createControlTextEl(n),n},n.prototype.dispose=function(){this.controlTextEl_=null,r.prototype.dispose.call(this)},n.prototype.createControlTextEl=function(t){return this.controlTextEl_=x("span",{className:"vjs-control-text"},{"aria-live":"polite"}),t&&t.appendChild(this.controlTextEl_),this.controlText(this.controlText_,t),this.controlTextEl_},n.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.el();if(void 0===t)return this.controlText_||"Need Text";var i=this.localize(t);this.controlText_=t,R(this.controlTextEl_,i),this.nonIconControl||e.setAttribute("title",i)},n.prototype.buildCSSClass=function(){return"vjs-control vjs-button "+r.prototype.buildCSSClass.call(this)},n.prototype.enable=function(){this.enabled_||(this.enabled_=!0,this.removeClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","false"),"undefined"!=typeof this.tabIndex_&&this.el_.setAttribute("tabIndex",this.tabIndex_),this.on(["tap","click"],this.handleClick),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur))},n.prototype.disable=function(){this.enabled_=!1,this.addClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","true"),"undefined"!=typeof this.tabIndex_&&this.el_.removeAttribute("tabIndex"),this.off(["tap","click"],this.handleClick),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur)},n.prototype.handleClick=function(t){},n.prototype.handleFocus=function(t){vt(p,"keydown",Ot(this,this.handleKeyPress))},n.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.trigger("click")):r.prototype.handleKeyPress&&r.prototype.handleKeyPress.call(this,t)},n.prototype.handleBlur=function(t){_t(p,"keydown",Ot(this,this.handleKeyPress))},n}(Xt);Xt.registerComponent("ClickableComponent",qi);var zi=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.update(),t.on("posterchange",Ot(i,i.update)),i}return v(r,n),r.prototype.dispose=function(){this.player().off("posterchange",this.update),n.prototype.dispose.call(this)},r.prototype.createEl=function(){return x("div",{className:"vjs-poster",tabIndex:-1})},r.prototype.update=function(t){var e=this.player().poster();this.setSrc(e),e?this.show():this.hide()},r.prototype.setSrc=function(t){var e="";t&&(e='url("'+t+'")'),this.el_.style.backgroundImage=e},r.prototype.handleClick=function(t){this.player_.controls()&&(this.player_.paused()?De(this.player_.play()):this.player_.pause())},r}(qi);Xt.registerComponent("PosterImage",zi);var Wi="#222",Gi={monospace:"monospace",sansSerif:"sans-serif",serif:"serif",monospaceSansSerif:'"Andale Mono", "Lucida Console", monospace',monospaceSerif:'"Courier New", monospace',proportionalSansSerif:"sans-serif",proportionalSerif:"serif",casual:'"Comic Sans MS", Impact, fantasy',script:'"Monotype Corsiva", cursive',smallcaps:'"Andale Mono", "Lucida Console", monospace, sans-serif'};function Xi(t,e){var i=void 0;if(4===t.length)i=t[1]+t[1]+t[2]+t[2]+t[3]+t[3];else{if(7!==t.length)throw new Error("Invalid color code provided, "+t+"; must be formatted as e.g. #f0e or #f604e2.");i=t.slice(1)}return"rgba("+parseInt(i.slice(0,2),16)+","+parseInt(i.slice(2,4),16)+","+parseInt(i.slice(4,6),16)+","+e+")"}function Yi(t,e,i){try{t.style[e]=i}catch(t){return}}var $i=function(a){function s(i,t,e){y(this,s);var n=_(this,a.call(this,i,t,e)),r=Ot(n,n.updateDisplay);return i.on("loadstart",Ot(n,n.toggleDisplay)),i.on("texttrackchange",r),i.on("loadstart",Ot(n,n.preselectTrack)),i.ready(Ot(n,function(){if(i.tech_&&i.tech_.featuresNativeTextTracks)this.hide();else{i.on("fullscreenchange",r),i.on("playerresize",r),g.addEventListener("orientationchange",r),i.on("dispose",function(){return g.removeEventListener("orientationchange",r)});for(var t=this.options_.playerOptions.tracks||[],e=0;e<t.length;e++)this.player_.addRemoteTextTrack(t[e],!0);this.preselectTrack()}})),n}return v(s,a),s.prototype.preselectTrack=function(){for(var t={captions:1,subtitles:1},e=this.player_.textTracks(),i=this.player_.cache_.selectedLanguage,n=void 0,r=void 0,a=void 0,s=0;s<e.length;s++){var o=e[s];i&&i.enabled&&i.language===o.language?o.kind===i.kind?a=o:a||(a=o):i&&!i.enabled?r=n=a=null:o.default&&("descriptions"!==o.kind||n?o.kind in t&&!r&&(r=o):n=o)}a?a.mode="showing":r?r.mode="showing":n&&(n.mode="showing")},s.prototype.toggleDisplay=function(){this.player_.tech_&&this.player_.tech_.featuresNativeTextTracks?this.hide():this.show()},s.prototype.createEl=function(){return a.prototype.createEl.call(this,"div",{className:"vjs-text-track-display"},{"aria-live":"off","aria-atomic":"true"})},s.prototype.clearDisplay=function(){"function"==typeof g.WebVTT&&g.WebVTT.processCues(g,[],this.el_)},s.prototype.updateDisplay=function(){var t=this.player_.textTracks();this.clearDisplay();for(var e=null,i=null,n=t.length;n--;){var r=t[n];"showing"===r.mode&&("descriptions"===r.kind?e=r:i=r)}i?("off"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","off"),this.updateForTrack(i)):e&&("assertive"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","assertive"),this.updateForTrack(e))},s.prototype.updateForTrack=function(t){if("function"==typeof g.WebVTT&&t.activeCues){for(var e=[],i=0;i<t.activeCues.length;i++)e.push(t.activeCues[i]);if(g.WebVTT.processCues(g,e,this.el_),this.player_.textTrackSettings)for(var n=this.player_.textTrackSettings.getValues(),r=e.length;r--;){var a=e[r];if(a){var s=a.displayState;if(n.color&&(s.firstChild.style.color=n.color),n.textOpacity&&Yi(s.firstChild,"color",Xi(n.color||"#fff",n.textOpacity)),n.backgroundColor&&(s.firstChild.style.backgroundColor=n.backgroundColor),n.backgroundOpacity&&Yi(s.firstChild,"backgroundColor",Xi(n.backgroundColor||"#000",n.backgroundOpacity)),n.windowColor&&(n.windowOpacity?Yi(s,"backgroundColor",Xi(n.windowColor,n.windowOpacity)):s.style.backgroundColor=n.windowColor),n.edgeStyle&&("dropshadow"===n.edgeStyle?s.firstChild.style.textShadow="2px 2px 3px #222, 2px 2px 4px #222, 2px 2px 5px "+Wi:"raised"===n.edgeStyle?s.firstChild.style.textShadow="1px 1px #222, 2px 2px #222, 3px 3px "+Wi:"depressed"===n.edgeStyle?s.firstChild.style.textShadow="1px 1px #ccc, 0 1px #ccc, -1px -1px #222, 0 -1px "+Wi:"uniform"===n.edgeStyle&&(s.firstChild.style.textShadow="0 0 4px #222, 0 0 4px #222, 0 0 4px #222, 0 0 4px "+Wi)),n.fontPercent&&1!==n.fontPercent){var o=g.parseFloat(s.style.fontSize);s.style.fontSize=o*n.fontPercent+"px",s.style.height="auto",s.style.top="auto",s.style.bottom="2px"}n.fontFamily&&"default"!==n.fontFamily&&("small-caps"===n.fontFamily?s.firstChild.style.fontVariant="small-caps":s.firstChild.style.fontFamily=Gi[n.fontFamily])}}}},s}(Xt);Xt.registerComponent("TextTrackDisplay",$i);var Ki=function(r){function t(){return y(this,t),_(this,r.apply(this,arguments))}return v(t,r),t.prototype.createEl=function(){var t=this.player_.isAudio(),e=this.localize(t?"Audio Player":"Video Player"),i=x("span",{className:"vjs-control-text",innerHTML:this.localize("{1} is loading.",[e])}),n=r.prototype.createEl.call(this,"div",{className:"vjs-loading-spinner",dir:"ltr"});return n.appendChild(i),n},t}(Xt);Xt.registerComponent("LoadingSpinner",Ki);var Ji=function(e){function t(){return y(this,t),_(this,e.apply(this,arguments))}return v(t,e),t.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=k({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass()},e),i=k({type:"button"},i);var n=Xt.prototype.createEl.call(this,"button",e,i);return this.createControlTextEl(n),n},t.prototype.addChild=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=this.constructor.name;return f.warn("Adding an actionable (user controllable) child to a Button ("+i+") is not supported; use a ClickableComponent instead."),Xt.prototype.addChild.call(this,t,e)},t.prototype.enable=function(){e.prototype.enable.call(this),this.el_.removeAttribute("disabled")},t.prototype.disable=function(){e.prototype.disable.call(this),this.el_.setAttribute("disabled","disabled")},t.prototype.handleKeyPress=function(t){32!==t.which&&13!==t.which&&e.prototype.handleKeyPress.call(this,t)},t}(qi);Xt.registerComponent("Button",Ji);var Qi=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.mouseused_=!1,i.on("mousedown",i.handleMouseDown),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-big-play-button"},r.prototype.handleClick=function(t){var e=this.player_.play();if(this.mouseused_&&t.clientX&&t.clientY)De(e);else{var i=this.player_.getChild("controlBar"),n=i&&i.getChild("playToggle");if(n){var r=function(){return n.focus()};Ie(e)?e.then(r,function(){}):this.setTimeout(r,1)}else this.player_.focus()}},r.prototype.handleKeyPress=function(t){this.mouseused_=!1,n.prototype.handleKeyPress.call(this,t)},r.prototype.handleMouseDown=function(t){this.mouseused_=!0},r}(Ji);Qi.prototype.controlText_="Play Video",Xt.registerComponent("BigPlayButton",Qi);var Zi=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.controlText(e&&e.controlText||i.localize("Close")),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-close-button "+n.prototype.buildCSSClass.call(this)},r.prototype.handleClick=function(t){this.trigger({type:"close",bubbles:!1})},r}(Ji);Xt.registerComponent("CloseButton",Zi);var tn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"play",i.handlePlay),i.on(t,"pause",i.handlePause),i.on(t,"ended",i.handleEnded),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-play-control "+n.prototype.buildCSSClass.call(this)},r.prototype.handleClick=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},r.prototype.handleSeeked=function(t){this.removeClass("vjs-ended"),this.player_.paused()?this.handlePause(t):this.handlePlay(t)},r.prototype.handlePlay=function(t){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.controlText("Pause")},r.prototype.handlePause=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.controlText("Play")},r.prototype.handleEnded=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-ended"),this.controlText("Replay"),this.one(this.player_,"seeked",this.handleSeeked)},r}(Ji);tn.prototype.controlText_="Play",Xt.registerComponent("PlayToggle",tn);var en=function(t,e){t=t<0?0:t;var i=Math.floor(t%60),n=Math.floor(t/60%60),r=Math.floor(t/3600),a=Math.floor(e/60%60),s=Math.floor(e/3600);return(isNaN(t)||t===1/0)&&(r=n=i="-"),(r=0<r||0<s?r+":":"")+(n=((r||10<=a)&&n<10?"0"+n:n)+":")+(i=i<10?"0"+i:i)},nn=en;function rn(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t;return nn(t,e)}var an=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.throttledUpdateContent=Pt(Ot(i,i.updateContent),25),i.on(t,"timeupdate",i.throttledUpdateContent),i}return v(r,n),r.prototype.createEl=function(t){var e=this.buildCSSClass(),i=n.prototype.createEl.call(this,"div",{className:e+" vjs-time-control vjs-control",innerHTML:'<span class="vjs-control-text">'+this.localize(this.labelText_)+" </span>"});return this.contentEl_=x("span",{className:e+"-display"},{"aria-live":"off"}),this.updateTextNode_(),i.appendChild(this.contentEl_),i},r.prototype.dispose=function(){this.contentEl_=null,this.textNode_=null,n.prototype.dispose.call(this)},r.prototype.updateTextNode_=function(){if(this.contentEl_){for(;this.contentEl_.firstChild;)this.contentEl_.removeChild(this.contentEl_.firstChild);this.textNode_=p.createTextNode(this.formattedTime_||this.formatTime_(0)),this.contentEl_.appendChild(this.textNode_)}},r.prototype.formatTime_=function(t){return rn(t)},r.prototype.updateFormattedTime_=function(t){var e=this.formatTime_(t);e!==this.formattedTime_&&(this.formattedTime_=e,this.requestAnimationFrame(this.updateTextNode_))},r.prototype.updateContent=function(t){},r}(Xt);an.prototype.labelText_="Time",an.prototype.controlText_="Time",Xt.registerComponent("TimeDisplay",an);var sn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"ended",i.handleEnded),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-current-time"},r.prototype.updateContent=function(t){var e=this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime();this.updateFormattedTime_(e)},r.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(this.player_.duration())},r}(an);sn.prototype.labelText_="Current Time",sn.prototype.controlText_="Current Time",Xt.registerComponent("CurrentTimeDisplay",sn);var on=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"durationchange",i.updateContent),i.on(t,"loadedmetadata",i.throttledUpdateContent),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-duration"},r.prototype.updateContent=function(t){var e=this.player_.duration();e&&this.duration_!==e&&(this.duration_=e,this.updateFormattedTime_(e))},r}(an);on.prototype.labelText_="Duration",on.prototype.controlText_="Duration",Xt.registerComponent("DurationDisplay",on);var un=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-control vjs-time-divider",innerHTML:"<div><span>/</span></div>"})},e}(Xt);Xt.registerComponent("TimeDivider",un);var ln=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"durationchange",i.throttledUpdateContent),i.on(t,"ended",i.handleEnded),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-remaining-time"},r.prototype.formatTime_=function(t){return"-"+n.prototype.formatTime_.call(this,t)},r.prototype.updateContent=function(t){this.player_.duration()&&(this.player_.remainingTimeDisplay?this.updateFormattedTime_(this.player_.remainingTimeDisplay()):this.updateFormattedTime_(this.player_.remainingTime()))},r.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(0)},r}(an);ln.prototype.labelText_="Remaining Time",ln.prototype.controlText_="Remaining Time",Xt.registerComponent("RemainingTimeDisplay",ln);var cn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.updateShowing(),i.on(i.player(),"durationchange",i.updateShowing),i}return v(r,n),r.prototype.createEl=function(){var t=n.prototype.createEl.call(this,"div",{className:"vjs-live-control vjs-control"});return this.contentEl_=x("div",{className:"vjs-live-display",innerHTML:'<span class="vjs-control-text">'+this.localize("Stream Type")+" </span>"+this.localize("LIVE")},{"aria-live":"off"}),t.appendChild(this.contentEl_),t},r.prototype.dispose=function(){this.contentEl_=null,n.prototype.dispose.call(this)},r.prototype.updateShowing=function(t){this.player().duration()===1/0?this.show():this.hide()},r}(Xt);Xt.registerComponent("LiveDisplay",cn);var hn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.bar=i.getChild(i.options_.barName),i.vertical(!!i.options_.vertical),i.enable(),i}return v(r,n),r.prototype.enabled=function(){return this.enabled_},r.prototype.enable=function(){this.enabled()||(this.on("mousedown",this.handleMouseDown),this.on("touchstart",this.handleMouseDown),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur),this.on("click",this.handleClick),this.on(this.player_,"controlsvisible",this.update),this.playerEvent&&this.on(this.player_,this.playerEvent,this.update),this.removeClass("disabled"),this.setAttribute("tabindex",0),this.enabled_=!0)},r.prototype.disable=function(){if(this.enabled()){var t=this.bar.el_.ownerDocument;this.off("mousedown",this.handleMouseDown),this.off("touchstart",this.handleMouseDown),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur),this.off("click",this.handleClick),this.off(this.player_,"controlsvisible",this.update),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.removeAttribute("tabindex"),this.addClass("disabled"),this.playerEvent&&this.off(this.player_,this.playerEvent,this.update),this.enabled_=!1}},r.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};return e.className=e.className+" vjs-slider",e=k({tabIndex:0},e),i=k({role:"slider","aria-valuenow":0,"aria-valuemin":0,"aria-valuemax":100,tabIndex:0},i),n.prototype.createEl.call(this,t,e,i)},r.prototype.handleMouseDown=function(t){var e=this.bar.el_.ownerDocument;"mousedown"===t.type&&t.preventDefault(),"touchstart"!==t.type||he||t.preventDefault(),G(),this.addClass("vjs-sliding"),this.trigger("slideractive"),this.on(e,"mousemove",this.handleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchmove",this.handleMouseMove),this.on(e,"touchend",this.handleMouseUp),this.handleMouseMove(t)},r.prototype.handleMouseMove=function(t){},r.prototype.handleMouseUp=function(){var t=this.bar.el_.ownerDocument;X(),this.removeClass("vjs-sliding"),this.trigger("sliderinactive"),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.update()},r.prototype.update=function(){if(this.el_){var t=this.getPercent(),e=this.bar;if(e){("number"!=typeof t||t!=t||t<0||t===1/0)&&(t=0);var i=(100*t).toFixed(2)+"%",n=e.el().style;return this.vertical()?n.height=i:n.width=i,t}}},r.prototype.calculateDistance=function(t){var e=K(this.el_,t);return this.vertical()?e.y:e.x},r.prototype.handleFocus=function(){this.on(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},r.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepBack()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepForward())},r.prototype.handleBlur=function(){this.off(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},r.prototype.handleClick=function(t){t.stopImmediatePropagation(),t.preventDefault()},r.prototype.vertical=function(t){if(void 0===t)return this.vertical_||!1;this.vertical_=!!t,this.vertical_?this.addClass("vjs-slider-vertical"):this.addClass("vjs-slider-horizontal")},r}(Xt);Xt.registerComponent("Slider",hn);var dn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.partEls_=[],i.on(t,"progress",i.update),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-load-progress",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Loaded")+"</span>: 0%</span>"})},r.prototype.dispose=function(){this.partEls_=null,n.prototype.dispose.call(this)},r.prototype.update=function(t){var e=this.player_.buffered(),i=this.player_.duration(),n=this.player_.bufferedEnd(),r=this.partEls_,a=function(t,e){var i=t/e||0;return 100*(1<=i?1:i)+"%"};this.el_.style.width=a(n,i);for(var s=0;s<e.length;s++){var o=e.start(s),u=e.end(s),l=r[s];l||(l=this.el_.appendChild(x()),r[s]=l),l.style.left=a(o,n),l.style.width=a(u-o,n)}for(var c=r.length;c>e.length;c--)this.el_.removeChild(r[c-1]);r.length=e.length},r}(Xt);Xt.registerComponent("LoadProgressBar",dn);var pn=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-tooltip"})},e.prototype.update=function(t,e,i){var n=Y(this.el_),r=Y(this.player_.el()),a=t.width*e;if(r&&n){var s=t.left-r.left+a,o=t.width-a+(r.right-t.right),u=n.width/2;s<u?u+=u-s:o<u&&(u=o),u<0?u=0:u>n.width&&(u=n.width),this.el_.style.right="-"+u+"px",R(this.el_,i)}},e}(Xt);Xt.registerComponent("TimeTooltip",pn);var fn=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-play-progress vjs-slider-bar",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Progress")+"</span>: 0%</span>"})},e.prototype.update=function(i,n){var r=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=rn(r.player_.scrubbing()?r.player_.getCache().currentTime:r.player_.currentTime(),r.player_.duration()),e=r.getChild("timeTooltip");e&&e.update(i,n,t)})},e}(Xt);fn.prototype.options_={children:[]},re||se||fn.prototype.options_.children.push("timeTooltip"),Xt.registerComponent("PlayProgressBar",fn);var mn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.update=Pt(Ot(i,i.update),25),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-mouse-display"})},r.prototype.update=function(i,n){var r=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=r.player_.duration(),e=rn(n*t,t);r.el_.style.left=i.width*n+"px",r.getChild("timeTooltip").update(i,n,e)})},r}(Xt);mn.prototype.options_={children:["timeTooltip"]},Xt.registerComponent("MouseTimeDisplay",mn);var gn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.setEventHandlers_(),i}return v(r,n),r.prototype.setEventHandlers_=function(){var t=this;this.update=Pt(Ot(this,this.update),30),this.on(this.player_,"timeupdate",this.update),this.on(this.player_,"ended",this.handleEnded),this.updateInterval=null,this.on(this.player_,["playing"],function(){t.clearInterval(t.updateInterval),t.updateInterval=t.setInterval(function(){t.requestAnimationFrame(function(){t.update()})},30)}),this.on(this.player_,["ended","pause","waiting"],function(){t.clearInterval(t.updateInterval)}),this.on(this.player_,["timeupdate","ended"],this.update)},r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-progress-holder"},{"aria-label":this.localize("Progress Bar")})},r.prototype.update_=function(t,e){var i=this.player_.duration();this.el_.setAttribute("aria-valuenow",(100*e).toFixed(2)),this.el_.setAttribute("aria-valuetext",this.localize("progress bar timing: currentTime={1} duration={2}",[rn(t,i),rn(i,i)],"{1} of {2}")),this.bar.update(Y(this.el_),e)},r.prototype.update=function(t){var e=n.prototype.update.call(this);return this.update_(this.getCurrentTime_(),e),e},r.prototype.getCurrentTime_=function(){return this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime()},r.prototype.handleEnded=function(t){this.update_(this.player_.duration(),1)},r.prototype.getPercent=function(){var t=this.getCurrentTime_()/this.player_.duration();return 1<=t?1:t||0},r.prototype.handleMouseDown=function(t){it(t)&&(t.stopPropagation(),this.player_.scrubbing(!0),this.videoWasPlaying=!this.player_.paused(),this.player_.pause(),n.prototype.handleMouseDown.call(this,t))},r.prototype.handleMouseMove=function(t){if(it(t)){var e=this.calculateDistance(t)*this.player_.duration();e===this.player_.duration()&&(e-=.1),this.player_.currentTime(e)}},r.prototype.enable=function(){n.prototype.enable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.show()},r.prototype.disable=function(){n.prototype.disable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.hide()},r.prototype.handleMouseUp=function(t){n.prototype.handleMouseUp.call(this,t),t&&t.stopPropagation(),this.player_.scrubbing(!1),this.player_.trigger({type:"timeupdate",target:this,manuallyTriggered:!0}),this.videoWasPlaying&&De(this.player_.play())},r.prototype.stepForward=function(){this.player_.currentTime(this.player_.currentTime()+5)},r.prototype.stepBack=function(){this.player_.currentTime(this.player_.currentTime()-5)},r.prototype.handleAction=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},r.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.handleAction(t)):n.prototype.handleKeyPress&&n.prototype.handleKeyPress.call(this,t)},r}(hn);gn.prototype.options_={children:["loadProgressBar","playProgressBar"],barName:"playProgressBar"},re||se||gn.prototype.options_.children.splice(1,0,"mouseTimeDisplay"),gn.prototype.playerEvent="timeupdate",Xt.registerComponent("SeekBar",gn);var yn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.handleMouseMove=Pt(Ot(i,i.handleMouseMove),25),i.throttledHandleMouseSeek=Pt(Ot(i,i.handleMouseSeek),25),i.enable(),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-progress-control vjs-control"})},r.prototype.handleMouseMove=function(t){var e=this.getChild("seekBar");if(e){var i=e.getChild("mouseTimeDisplay"),n=e.el(),r=Y(n),a=K(n,t).x;1<a?a=1:a<0&&(a=0),i&&i.update(r,a)}},r.prototype.handleMouseSeek=function(t){var e=this.getChild("seekBar");e&&e.handleMouseMove(t)},r.prototype.enabled=function(){return this.enabled_},r.prototype.disable=function(){this.children().forEach(function(t){return t.disable&&t.disable()}),this.enabled()&&(this.off(["mousedown","touchstart"],this.handleMouseDown),this.off(this.el_,"mousemove",this.handleMouseMove),this.handleMouseUp(),this.addClass("disabled"),this.enabled_=!1)},r.prototype.enable=function(){this.children().forEach(function(t){return t.enable&&t.enable()}),this.enabled()||(this.on(["mousedown","touchstart"],this.handleMouseDown),this.on(this.el_,"mousemove",this.handleMouseMove),this.removeClass("disabled"),this.enabled_=!0)},r.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument,i=this.getChild("seekBar");i&&i.handleMouseDown(t),this.on(e,"mousemove",this.throttledHandleMouseSeek),this.on(e,"touchmove",this.throttledHandleMouseSeek),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},r.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument,i=this.getChild("seekBar");i&&i.handleMouseUp(t),this.off(e,"mousemove",this.throttledHandleMouseSeek),this.off(e,"touchmove",this.throttledHandleMouseSeek),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},r}(Xt);yn.prototype.options_={children:["seekBar"]},Xt.registerComponent("ProgressControl",yn);var vn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"fullscreenchange",i.handleFullscreenChange),!1===p[Se.fullscreenEnabled]&&i.disable(),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-fullscreen-control "+n.prototype.buildCSSClass.call(this)},r.prototype.handleFullscreenChange=function(t){this.player_.isFullscreen()?this.controlText("Non-Fullscreen"):this.controlText("Fullscreen")},r.prototype.handleClick=function(t){this.player_.isFullscreen()?this.player_.exitFullscreen():this.player_.requestFullscreen()},r}(Ji);vn.prototype.controlText_="Fullscreen",Xt.registerComponent("FullscreenToggle",vn);var _n=function(t,e){e.tech_&&!e.tech_.featuresVolumeControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresVolumeControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},bn=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-volume-level",innerHTML:'<span class="vjs-control-text"></span>'})},e}(Xt);Xt.registerComponent("VolumeLevel",bn);var Tn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on("slideractive",i.updateLastVolume_),i.on(t,"volumechange",i.updateARIAAttributes),t.ready(function(){return i.updateARIAAttributes()}),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-volume-bar vjs-slider-bar"},{"aria-label":this.localize("Volume Level"),"aria-live":"polite"})},r.prototype.handleMouseDown=function(t){it(t)&&n.prototype.handleMouseDown.call(this,t)},r.prototype.handleMouseMove=function(t){it(t)&&(this.checkMuted(),this.player_.volume(this.calculateDistance(t)))},r.prototype.checkMuted=function(){this.player_.muted()&&this.player_.muted(!1)},r.prototype.getPercent=function(){return this.player_.muted()?0:this.player_.volume()},r.prototype.stepForward=function(){this.checkMuted(),this.player_.volume(this.player_.volume()+.1)},r.prototype.stepBack=function(){this.checkMuted(),this.player_.volume(this.player_.volume()-.1)},r.prototype.updateARIAAttributes=function(t){var e=this.player_.muted()?0:this.volumeAsPercentage_();this.el_.setAttribute("aria-valuenow",e),this.el_.setAttribute("aria-valuetext",e+"%")},r.prototype.volumeAsPercentage_=function(){return Math.round(100*this.player_.volume())},r.prototype.updateLastVolume_=function(){var t=this,e=this.player_.volume();this.one("sliderinactive",function(){0===t.player_.volume()&&t.player_.lastVolume_(e)})},r}(hn);Tn.prototype.options_={children:["volumeLevel"],barName:"volumeLevel"},Tn.prototype.playerEvent="volumechange",Xt.registerComponent("VolumeBar",Tn);var Sn=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,r),e.vertical=e.vertical||!1,("undefined"==typeof e.volumeBar||w(e.volumeBar))&&(e.volumeBar=e.volumeBar||{},e.volumeBar.vertical=e.vertical);var i=_(this,n.call(this,t,e));return _n(i,t),i.throttledHandleMouseMove=Pt(Ot(i,i.handleMouseMove),25),i.on("mousedown",i.handleMouseDown),i.on("touchstart",i.handleMouseDown),i.on(i.volumeBar,["focus","slideractive"],function(){i.volumeBar.addClass("vjs-slider-active"),i.addClass("vjs-slider-active"),i.trigger("slideractive")}),i.on(i.volumeBar,["blur","sliderinactive"],function(){i.volumeBar.removeClass("vjs-slider-active"),i.removeClass("vjs-slider-active"),i.trigger("sliderinactive")}),i}return v(r,n),r.prototype.createEl=function(){var t="vjs-volume-horizontal";return this.options_.vertical&&(t="vjs-volume-vertical"),n.prototype.createEl.call(this,"div",{className:"vjs-volume-control vjs-control "+t})},r.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument;this.on(e,"mousemove",this.throttledHandleMouseMove),this.on(e,"touchmove",this.throttledHandleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},r.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument;this.off(e,"mousemove",this.throttledHandleMouseMove),this.off(e,"touchmove",this.throttledHandleMouseMove),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},r.prototype.handleMouseMove=function(t){this.volumeBar.handleMouseMove(t)},r}(Xt);Sn.prototype.options_={children:["volumeBar"]},Xt.registerComponent("VolumeControl",Sn);var kn=function(t,e){e.tech_&&!e.tech_.featuresMuteControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresMuteControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},Cn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return kn(i,t),i.on(t,["loadstart","volumechange"],i.update),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-mute-control "+n.prototype.buildCSSClass.call(this)},r.prototype.handleClick=function(t){var e=this.player_.volume(),i=this.player_.lastVolume_();if(0===e){var n=i<.1?.1:i;this.player_.volume(n),this.player_.muted(!1)}else this.player_.muted(!this.player_.muted())},r.prototype.update=function(t){this.updateIcon_(),this.updateControlText_()},r.prototype.updateIcon_=function(){var t=this.player_.volume(),e=3;re&&this.player_.muted(this.player_.tech_.el_.muted),0===t||this.player_.muted()?e=0:t<.33?e=1:t<.67&&(e=2);for(var i=0;i<4;i++)j(this.el_,"vjs-vol-"+i);B(this.el_,"vjs-vol-"+e)},r.prototype.updateControlText_=function(){var t=this.player_.muted()||0===this.player_.volume()?"Unmute":"Mute";this.controlText()!==t&&this.controlText(t)},r}(Ji);Cn.prototype.controlText_="Mute",Xt.registerComponent("MuteToggle",Cn);var wn=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,r),"undefined"!=typeof e.inline?e.inline=e.inline:e.inline=!0,("undefined"==typeof e.volumeControl||w(e.volumeControl))&&(e.volumeControl=e.volumeControl||{},e.volumeControl.vertical=!e.inline);var i=_(this,n.call(this,t,e));return i.on(t,["loadstart"],i.volumePanelState_),i.on(i.volumeControl,["slideractive"],i.sliderActive_),i.on(i.volumeControl,["sliderinactive"],i.sliderInactive_),i}return v(r,n),r.prototype.sliderActive_=function(){this.addClass("vjs-slider-active")},r.prototype.sliderInactive_=function(){this.removeClass("vjs-slider-active")},r.prototype.volumePanelState_=function(){this.volumeControl.hasClass("vjs-hidden")&&this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-hidden"),this.volumeControl.hasClass("vjs-hidden")&&!this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-mute-toggle-only")},r.prototype.createEl=function(){var t="vjs-volume-panel-horizontal";return this.options_.inline||(t="vjs-volume-panel-vertical"),n.prototype.createEl.call(this,"div",{className:"vjs-volume-panel vjs-control "+t})},r}(Xt);wn.prototype.options_={children:["muteToggle","volumeControl"]},Xt.registerComponent("VolumePanel",wn);var En=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return e&&(i.menuButton_=e.menuButton),i.focusedChild_=-1,i.on("keydown",i.handleKeyPress),i}return v(r,n),r.prototype.addItem=function(e){this.addChild(e),e.on("click",Ot(this,function(t){this.menuButton_&&(this.menuButton_.unpressButton(),"CaptionSettingsMenuItem"!==e.name()&&this.menuButton_.focus())}))},r.prototype.createEl=function(){var t=this.options_.contentElType||"ul";this.contentEl_=x(t,{className:"vjs-menu-content"}),this.contentEl_.setAttribute("role","menu");var e=n.prototype.createEl.call(this,"div",{append:this.contentEl_,className:"vjs-menu"});return e.appendChild(this.contentEl_),vt(e,"click",function(t){t.preventDefault(),t.stopImmediatePropagation()}),e},r.prototype.dispose=function(){this.contentEl_=null,n.prototype.dispose.call(this)},r.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepForward()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepBack())},r.prototype.stepForward=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_+1),this.focus(t)},r.prototype.stepBack=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_-1),this.focus(t)},r.prototype.focus=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,e=this.children().slice();e.length&&e[0].className&&/vjs-menu-title/.test(e[0].className)&&e.shift(),0<e.length&&(t<0?t=0:t>=e.length&&(t=e.length-1),e[this.focusedChild_=t].el_.focus())},r}(Xt);Xt.registerComponent("Menu",En);var An=function(r){function a(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,a);var i=_(this,r.call(this,t,e));i.menuButton_=new Ji(t,e),i.menuButton_.controlText(i.controlText_),i.menuButton_.el_.setAttribute("aria-haspopup","true");var n=Ji.prototype.buildCSSClass();return i.menuButton_.el_.className=i.buildCSSClass()+" "+n,i.menuButton_.removeClass("vjs-control"),i.addChild(i.menuButton_),i.update(),i.enabled_=!0,i.on(i.menuButton_,"tap",i.handleClick),i.on(i.menuButton_,"click",i.handleClick),i.on(i.menuButton_,"focus",i.handleFocus),i.on(i.menuButton_,"blur",i.handleBlur),i.on("keydown",i.handleSubmenuKeyPress),i}return v(a,r),a.prototype.update=function(){var t=this.createMenu();this.menu&&(this.menu.dispose(),this.removeChild(this.menu)),this.menu=t,this.addChild(t),this.buttonPressed_=!1,this.menuButton_.el_.setAttribute("aria-expanded","false"),this.items&&this.items.length<=this.hideThreshold_?this.hide():this.show()},a.prototype.createMenu=function(){var t=new En(this.player_,{menuButton:this});if(this.hideThreshold_=0,this.options_.title){var e=x("li",{className:"vjs-menu-title",innerHTML:Wt(this.options_.title),tabIndex:-1});this.hideThreshold_+=1,t.children_.unshift(e),M(e,t.contentEl())}if(this.items=this.createItems(),this.items)for(var i=0;i<this.items.length;i++)t.addItem(this.items[i]);return t},a.prototype.createItems=function(){},a.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:this.buildWrapperCSSClass()},{})},a.prototype.buildWrapperCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+Ji.prototype.buildCSSClass()+" "+r.prototype.buildCSSClass.call(this)},a.prototype.buildCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+r.prototype.buildCSSClass.call(this)},a.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.menuButton_.el();return this.menuButton_.controlText(t,e)},a.prototype.handleClick=function(t){this.one(this.menu.contentEl(),"mouseleave",Ot(this,function(t){this.unpressButton(),this.el_.blur()})),this.buttonPressed_?this.unpressButton():this.pressButton()},a.prototype.focus=function(){this.menuButton_.focus()},a.prototype.blur=function(){this.menuButton_.blur()},a.prototype.handleFocus=function(){vt(p,"keydown",Ot(this,this.handleKeyPress))},a.prototype.handleBlur=function(){_t(p,"keydown",Ot(this,this.handleKeyPress))},a.prototype.handleKeyPress=function(t){27===t.which||9===t.which?(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus())):38!==t.which&&40!==t.which||this.buttonPressed_||(this.pressButton(),t.preventDefault())},a.prototype.handleSubmenuKeyPress=function(t){27!==t.which&&9!==t.which||(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus()))},a.prototype.pressButton=function(){if(this.enabled_){if(this.buttonPressed_=!0,this.menu.lockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","true"),re&&I())return;this.menu.focus()}},a.prototype.unpressButton=function(){this.enabled_&&(this.buttonPressed_=!1,this.menu.unlockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","false"))},a.prototype.disable=function(){this.unpressButton(),this.enabled_=!1,this.addClass("vjs-disabled"),this.menuButton_.disable()},a.prototype.enable=function(){this.enabled_=!0,this.removeClass("vjs-disabled"),this.menuButton_.enable()},a}(Xt);Xt.registerComponent("MenuButton",An);var Ln=function(a){function s(t,e){y(this,s);var i=e.tracks,n=_(this,a.call(this,t,e));if(n.items.length<=1&&n.hide(),!i)return _(n);var r=Ot(n,n.update);return i.addEventListener("removetrack",r),i.addEventListener("addtrack",r),n.player_.on("ready",r),n.player_.on("dispose",function(){i.removeEventListener("removetrack",r),i.removeEventListener("addtrack",r)}),n}return v(s,a),s}(An);Xt.registerComponent("TrackButton",Ln);var On=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.selectable=e.selectable,i.isSelected_=e.selected||!1,i.multiSelectable=e.multiSelectable,i.selected(i.isSelected_),i.selectable?i.multiSelectable?i.el_.setAttribute("role","menuitemcheckbox"):i.el_.setAttribute("role","menuitemradio"):i.el_.setAttribute("role","menuitem"),i}return v(r,n),r.prototype.createEl=function(t,e,i){return this.nonIconControl=!0,n.prototype.createEl.call(this,"li",k({className:"vjs-menu-item",innerHTML:'<span class="vjs-menu-item-text">'+this.localize(this.options_.label)+"</span>",tabIndex:-1},e),i)},r.prototype.handleClick=function(t){this.selected(!0)},r.prototype.selected=function(t){this.selectable&&(t?(this.addClass("vjs-selected"),this.el_.setAttribute("aria-checked","true"),this.controlText(", selected"),this.isSelected_=!0):(this.removeClass("vjs-selected"),this.el_.setAttribute("aria-checked","false"),this.controlText(""),this.isSelected_=!1))},r}(qi);Xt.registerComponent("MenuItem",On);var Pn=function(u){function l(t,e){y(this,l);var i=e.track,n=t.textTracks();e.label=i.label||i.language||"Unknown",e.selected="showing"===i.mode;var r=_(this,u.call(this,t,e));r.track=i;var a=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];r.handleTracksChange.apply(r,e)},s=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];r.handleSelectedLanguageChange.apply(r,e)};if(t.on(["loadstart","texttrackchange"],a),n.addEventListener("change",a),n.addEventListener("selectedlanguagechange",s),r.on("dispose",function(){t.off(["loadstart","texttrackchange"],a),n.removeEventListener("change",a),n.removeEventListener("selectedlanguagechange",s)}),void 0===n.onchange){var o=void 0;r.on(["tap","click"],function(){if("object"!==Ee(g.Event))try{o=new g.Event("change")}catch(t){}o||(o=p.createEvent("Event")).initEvent("change",!0,!0),n.dispatchEvent(o)})}return r.handleTracksChange(),r}return v(l,u),l.prototype.handleClick=function(t){var e=this.track.kind,i=this.track.kinds,n=this.player_.textTracks();if(i||(i=[e]),u.prototype.handleClick.call(this,t),n)for(var r=0;r<n.length;r++){var a=n[r];a===this.track&&-1<i.indexOf(a.kind)?"showing"!==a.mode&&(a.mode="showing"):"disabled"!==a.mode&&(a.mode="disabled")}},l.prototype.handleTracksChange=function(t){var e="showing"===this.track.mode;e!==this.isSelected_&&this.selected(e)},l.prototype.handleSelectedLanguageChange=function(t){if("showing"===this.track.mode){var e=this.player_.cache_.selectedLanguage;if(e&&e.enabled&&e.language===this.track.language&&e.kind!==this.track.kind)return;this.player_.cache_.selectedLanguage={enabled:!0,language:this.track.language,kind:this.track.kind}}},l.prototype.dispose=function(){this.track=null,u.prototype.dispose.call(this)},l}(On);Xt.registerComponent("TextTrackMenuItem",Pn);var Un=function(i){function n(t,e){return y(this,n),e.track={player:t,kind:e.kind,kinds:e.kinds,default:!1,mode:"disabled"},e.kinds||(e.kinds=[e.kind]),e.label?e.track.label=e.label:e.track.label=e.kinds.join(" and ")+" off",e.selectable=!0,e.multiSelectable=!1,_(this,i.call(this,t,e))}return v(n,i),n.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),i=!0,n=0,r=e.length;n<r;n++){var a=e[n];if(-1<this.options_.kinds.indexOf(a.kind)&&"showing"===a.mode){i=!1;break}}i!==this.isSelected_&&this.selected(i)},n.prototype.handleSelectedLanguageChange=function(t){for(var e=this.player().textTracks(),i=!0,n=0,r=e.length;n<r;n++){var a=e[n];if(-1<["captions","descriptions","subtitles"].indexOf(a.kind)&&"showing"===a.mode){i=!1;break}}i&&(this.player_.cache_.selectedLanguage={enabled:!1})},n}(Pn);Xt.registerComponent("OffTextTrackMenuItem",Un);var In=function(i){function n(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return y(this,n),e.tracks=t.textTracks(),_(this,i.call(this,t,e))}return v(n,i),n.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[],e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:Pn,i=void 0;this.label_&&(i=this.label_+" off"),t.push(new Un(this.player_,{kinds:this.kinds_,kind:this.kind_,label:i})),this.hideThreshold_+=1;var n=this.player_.textTracks();Array.isArray(this.kinds_)||(this.kinds_=[this.kind_]);for(var r=0;r<n.length;r++){var a=n[r];if(-1<this.kinds_.indexOf(a.kind)){var s=new e(this.player_,{track:a,selectable:!0,multiSelectable:!1});s.addClass("vjs-"+a.kind+"-menu-item"),t.push(s)}}return t},n}(Ln);Xt.registerComponent("TextTrackButton",In);var Dn=function(s){function o(t,e){y(this,o);var i=e.track,n=e.cue,r=t.currentTime();e.selectable=!0,e.multiSelectable=!1,e.label=n.text,e.selected=n.startTime<=r&&r<n.endTime;var a=_(this,s.call(this,t,e));return a.track=i,a.cue=n,i.addEventListener("cuechange",Ot(a,a.update)),a}return v(o,s),o.prototype.handleClick=function(t){s.prototype.handleClick.call(this),this.player_.currentTime(this.cue.startTime),this.update(this.cue.startTime)},o.prototype.update=function(t){var e=this.cue,i=this.player_.currentTime();this.selected(e.startTime<=i&&i<e.endTime)},o}(On);Xt.registerComponent("ChaptersTrackMenuItem",Dn);var xn=function(n){function r(t,e,i){return y(this,r),_(this,n.call(this,t,e,i))}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-chapters-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-chapters-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.update=function(t){this.track_&&(!t||"addtrack"!==t.type&&"removetrack"!==t.type)||this.setTrack(this.findChaptersTrack()),n.prototype.update.call(this)},r.prototype.setTrack=function(t){if(this.track_!==t){if(this.updateHandler_||(this.updateHandler_=this.update.bind(this)),this.track_){var e=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);e&&e.removeEventListener("load",this.updateHandler_),this.track_=null}if(this.track_=t,this.track_){this.track_.mode="hidden";var i=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);i&&i.addEventListener("load",this.updateHandler_)}}},r.prototype.findChaptersTrack=function(){for(var t=this.player_.textTracks()||[],e=t.length-1;0<=e;e--){var i=t[e];if(i.kind===this.kind_)return i}},r.prototype.getMenuCaption=function(){return this.track_&&this.track_.label?this.track_.label:this.localize(Wt(this.kind_))},r.prototype.createMenu=function(){return this.options_.title=this.getMenuCaption(),n.prototype.createMenu.call(this)},r.prototype.createItems=function(){var t=[];if(!this.track_)return t;var e=this.track_.cues;if(!e)return t;for(var i=0,n=e.length;i<n;i++){var r=e[i],a=new Dn(this.player_,{track:this.track_,cue:r});t.push(a)}return t},r}(In);xn.prototype.kind_="chapters",xn.prototype.controlText_="Chapters",Xt.registerComponent("ChaptersButton",xn);var Rn=function(s){function o(t,e,i){y(this,o);var n=_(this,s.call(this,t,e,i)),r=t.textTracks(),a=Ot(n,n.handleTracksChange);return r.addEventListener("change",a),n.on("dispose",function(){r.removeEventListener("change",a)}),n}return v(o,s),o.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),i=!1,n=0,r=e.length;n<r;n++){var a=e[n];if(a.kind!==this.kind_&&"showing"===a.mode){i=!0;break}}i?this.disable():this.enable()},o.prototype.buildCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildCSSClass.call(this)},o.prototype.buildWrapperCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildWrapperCSSClass.call(this)},o}(In);Rn.prototype.kind_="descriptions",Rn.prototype.controlText_="Descriptions",Xt.registerComponent("DescriptionsButton",Rn);var Mn=function(n){function r(t,e,i){return y(this,r),_(this,n.call(this,t,e,i))}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-subtitles-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-subtitles-button "+n.prototype.buildWrapperCSSClass.call(this)},r}(In);Mn.prototype.kind_="subtitles",Mn.prototype.controlText_="Subtitles",Xt.registerComponent("SubtitlesButton",Mn);var Nn=function(n){function r(t,e){y(this,r),e.track={player:t,kind:e.kind,label:e.kind+" settings",selectable:!1,default:!1,mode:"disabled"},e.selectable=!1,e.name="CaptionSettingsMenuItem";var i=_(this,n.call(this,t,e));return i.addClass("vjs-texttrack-settings"),i.controlText(", opens "+e.kind+" settings dialog"),i}return v(r,n),r.prototype.handleClick=function(t){this.player().getChild("textTrackSettings").open()},r}(Pn);Xt.registerComponent("CaptionSettingsMenuItem",Nn);var Bn=function(n){function r(t,e,i){return y(this,r),_(this,n.call(this,t,e,i))}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-captions-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-captions-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new Nn(this.player_,{kind:this.kind_})),this.hideThreshold_+=1),n.prototype.createItems.call(this,t)},r}(In);Bn.prototype.kind_="captions",Bn.prototype.controlText_="Captions",Xt.registerComponent("CaptionsButton",Bn);var jn=function(r){function t(){return y(this,t),_(this,r.apply(this,arguments))}return v(t,r),t.prototype.createEl=function(t,e,i){var n='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"captions"===this.options_.track.kind&&(n+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Captions")+"</span>\n "),n+="</span>",r.prototype.createEl.call(this,t,k({innerHTML:n},e),i)},t}(Pn);Xt.registerComponent("SubsCapsMenuItem",jn);var Fn=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,r);var i=_(this,n.call(this,t,e));return i.label_="subtitles",-1<["en","en-us","en-ca","fr-ca"].indexOf(i.player_.language_)&&(i.label_="captions"),i.menuButton_.controlText(Wt(i.label_)),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-subs-caps-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-subs-caps-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new Nn(this.player_,{kind:this.label_})),this.hideThreshold_+=1),t=n.prototype.createItems.call(this,t,jn)},r}(In);Fn.prototype.kinds_=["captions","subtitles"],Fn.prototype.controlText_="Subtitles",Xt.registerComponent("SubsCapsButton",Fn);var Hn=function(s){function o(t,e){y(this,o);var i=e.track,n=t.audioTracks();e.label=i.label||i.language||"Unknown",e.selected=i.enabled;var r=_(this,s.call(this,t,e));r.track=i,r.addClass("vjs-"+i.kind+"-menu-item");var a=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];r.handleTracksChange.apply(r,e)};return n.addEventListener("change",a),r.on("dispose",function(){n.removeEventListener("change",a)}),r}return v(o,s),o.prototype.createEl=function(t,e,i){var n='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"main-desc"===this.options_.track.kind&&(n+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Descriptions")+"</span>\n "),n+="</span>",s.prototype.createEl.call(this,t,k({innerHTML:n},e),i)},o.prototype.handleClick=function(t){var e=this.player_.audioTracks();s.prototype.handleClick.call(this,t);for(var i=0;i<e.length;i++){var n=e[i];n.enabled=n===this.track}},o.prototype.handleTracksChange=function(t){this.selected(this.track.enabled)},o}(On);Xt.registerComponent("AudioTrackMenuItem",Hn);var Vn=function(i){function n(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return y(this,n),e.tracks=t.audioTracks(),_(this,i.call(this,t,e))}return v(n,i),n.prototype.buildCSSClass=function(){return"vjs-audio-button "+i.prototype.buildCSSClass.call(this)},n.prototype.buildWrapperCSSClass=function(){return"vjs-audio-button "+i.prototype.buildWrapperCSSClass.call(this)},n.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[];this.hideThreshold_=1;for(var e=this.player_.audioTracks(),i=0;i<e.length;i++){var n=e[i];t.push(new Hn(this.player_,{track:n,selectable:!0,multiSelectable:!1}))}return t},n}(Ln);Vn.prototype.controlText_="Audio Track",Xt.registerComponent("AudioTrackButton",Vn);var qn=function(a){function s(t,e){y(this,s);var i=e.rate,n=parseFloat(i,10);e.label=i,e.selected=1===n,e.selectable=!0,e.multiSelectable=!1;var r=_(this,a.call(this,t,e));return r.label=i,r.rate=n,r.on(t,"ratechange",r.update),r}return v(s,a),s.prototype.handleClick=function(t){a.prototype.handleClick.call(this),this.player().playbackRate(this.rate)},s.prototype.update=function(t){this.selected(this.player().playbackRate()===this.rate)},s}(On);qn.prototype.contentElType="button",Xt.registerComponent("PlaybackRateMenuItem",qn);var zn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.updateVisibility(),i.updateLabel(),i.on(t,"loadstart",i.updateVisibility),i.on(t,"ratechange",i.updateLabel),i}return v(r,n),r.prototype.createEl=function(){var t=n.prototype.createEl.call(this);return this.labelEl_=x("div",{className:"vjs-playback-rate-value",innerHTML:"1x"}),t.appendChild(this.labelEl_),t},r.prototype.dispose=function(){this.labelEl_=null,n.prototype.dispose.call(this)},r.prototype.buildCSSClass=function(){return"vjs-playback-rate "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-playback-rate "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createMenu=function(){var t=new En(this.player()),e=this.playbackRates();if(e)for(var i=e.length-1;0<=i;i--)t.addChild(new qn(this.player(),{rate:e[i]+"x"}));return t},r.prototype.updateARIAAttributes=function(){this.el().setAttribute("aria-valuenow",this.player().playbackRate())},r.prototype.handleClick=function(t){for(var e=this.player().playbackRate(),i=this.playbackRates(),n=i[0],r=0;r<i.length;r++)if(i[r]>e){n=i[r];break}this.player().playbackRate(n)},r.prototype.playbackRates=function(){return this.options_.playbackRates||this.options_.playerOptions&&this.options_.playerOptions.playbackRates},r.prototype.playbackRateSupported=function(){return this.player().tech_&&this.player().tech_.featuresPlaybackRate&&this.playbackRates()&&0<this.playbackRates().length},r.prototype.updateVisibility=function(t){this.playbackRateSupported()?this.removeClass("vjs-hidden"):this.addClass("vjs-hidden")},r.prototype.updateLabel=function(t){this.playbackRateSupported()&&(this.labelEl_.innerHTML=this.player().playbackRate()+"x")},r}(An);zn.prototype.controlText_="Playback Rate",Xt.registerComponent("PlaybackRateMenuButton",zn);var Wn=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.buildCSSClass=function(){return"vjs-spacer "+t.prototype.buildCSSClass.call(this)},e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:this.buildCSSClass()})},e}(Xt);Xt.registerComponent("Spacer",Wn);var Gn=function(e){function t(){return y(this,t),_(this,e.apply(this,arguments))}return v(t,e),t.prototype.buildCSSClass=function(){return"vjs-custom-control-spacer "+e.prototype.buildCSSClass.call(this)},t.prototype.createEl=function(){var t=e.prototype.createEl.call(this,{className:this.buildCSSClass()});return t.innerHTML=" ",t},t}(Wn);Xt.registerComponent("CustomControlSpacer",Gn);var Xn=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-control-bar",dir:"ltr"})},e}(Xt);Xn.prototype.options_={children:["playToggle","volumePanel","currentTimeDisplay","timeDivider","durationDisplay","progressControl","liveDisplay","remainingTimeDisplay","customControlSpacer","playbackRateMenuButton","chaptersButton","descriptionsButton","subsCapsButton","audioTrackButton","fullscreenToggle"]},Xt.registerComponent("ControlBar",Xn);var Yn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"error",i.open),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-error-display "+n.prototype.buildCSSClass.call(this)},r.prototype.content=function(){var t=this.player().error();return t?this.localize(t.message):""},r}(Be);Yn.prototype.options_=Gt(Be.prototype.options_,{pauseOnOpen:!1,fillAlways:!0,temporary:!1,uncloseable:!0}),Xt.registerComponent("ErrorDisplay",Yn);var $n="vjs-text-track-settings",Kn=["#000","Black"],Jn=["#00F","Blue"],Qn=["#0FF","Cyan"],Zn=["#0F0","Green"],tr=["#F0F","Magenta"],er=["#F00","Red"],ir=["#FFF","White"],nr=["#FF0","Yellow"],rr=["1","Opaque"],ar=["0.5","Semi-Transparent"],sr=["0","Transparent"],or={backgroundColor:{selector:".vjs-bg-color > select",id:"captions-background-color-%s",label:"Color",options:[Kn,ir,er,Zn,Jn,nr,tr,Qn]},backgroundOpacity:{selector:".vjs-bg-opacity > select",id:"captions-background-opacity-%s",label:"Transparency",options:[rr,ar,sr]},color:{selector:".vjs-fg-color > select",id:"captions-foreground-color-%s",label:"Color",options:[ir,Kn,er,Zn,Jn,nr,tr,Qn]},edgeStyle:{selector:".vjs-edge-style > select",id:"%s",label:"Text Edge Style",options:[["none","None"],["raised","Raised"],["depressed","Depressed"],["uniform","Uniform"],["dropshadow","Dropshadow"]]},fontFamily:{selector:".vjs-font-family > select",id:"captions-font-family-%s",label:"Font Family",options:[["proportionalSansSerif","Proportional Sans-Serif"],["monospaceSansSerif","Monospace Sans-Serif"],["proportionalSerif","Proportional Serif"],["monospaceSerif","Monospace Serif"],["casual","Casual"],["script","Script"],["small-caps","Small Caps"]]},fontPercent:{selector:".vjs-font-percent > select",id:"captions-font-size-%s",label:"Font Size",options:[["0.50","50%"],["0.75","75%"],["1.00","100%"],["1.25","125%"],["1.50","150%"],["1.75","175%"],["2.00","200%"],["3.00","300%"],["4.00","400%"]],default:2,parser:function(t){return"1.00"===t?null:Number(t)}},textOpacity:{selector:".vjs-text-opacity > select",id:"captions-foreground-opacity-%s",label:"Transparency",options:[rr,ar]},windowColor:{selector:".vjs-window-color > select",id:"captions-window-color-%s",label:"Color"},windowOpacity:{selector:".vjs-window-opacity > select",id:"captions-window-opacity-%s",label:"Transparency",options:[sr,ar,rr]}};function ur(t,e){if(e&&(t=e(t)),t&&"none"!==t)return t}or.windowColor.options=or.backgroundColor.options;var lr=function(n){function r(t,e){y(this,r),e.temporary=!1;var i=_(this,n.call(this,t,e));return i.updateDisplay=Ot(i,i.updateDisplay),i.fill(),i.hasBeenOpened_=i.hasBeenFilled_=!0,i.endDialog=x("p",{className:"vjs-control-text",textContent:i.localize("End of dialog window.")}),i.el().appendChild(i.endDialog),i.setDefaults(),void 0===e.persistTextTrackSettings&&(i.options_.persistTextTrackSettings=i.options_.playerOptions.persistTextTrackSettings),i.on(i.$(".vjs-done-button"),"click",function(){i.saveSettings(),i.close()}),i.on(i.$(".vjs-default-button"),"click",function(){i.setDefaults(),i.updateDisplay()}),S(or,function(t){i.on(i.$(t.selector),"change",i.updateDisplay)}),i.options_.persistTextTrackSettings&&i.restoreSettings(),i}return v(r,n),r.prototype.dispose=function(){this.endDialog=null,n.prototype.dispose.call(this)},r.prototype.createElSelect_=function(t){var i=this,e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"",n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:"label",r=or[t],a=r.id.replace("%s",this.id_),s=[e,a].join(" ").trim();return["<"+n+' id="'+a+'" class="'+("label"===n?"vjs-label":"")+'">',this.localize(r.label),"</"+n+">",'<select aria-labelledby="'+s+'">'].concat(r.options.map(function(t){var e=a+"-"+t[1].replace(/\W+/g,"");return['<option id="'+e+'" value="'+t[0]+'" ','aria-labelledby="'+s+" "+e+'">',i.localize(t[1]),"</option>"].join("")})).concat("</select>").join("")},r.prototype.createElFgColor_=function(){var t="captions-text-legend-"+this.id_;return['<fieldset class="vjs-fg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Text"),"</legend>",this.createElSelect_("color",t),'<span class="vjs-text-opacity vjs-opacity">',this.createElSelect_("textOpacity",t),"</span>","</fieldset>"].join("")},r.prototype.createElBgColor_=function(){var t="captions-background-"+this.id_;return['<fieldset class="vjs-bg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Background"),"</legend>",this.createElSelect_("backgroundColor",t),'<span class="vjs-bg-opacity vjs-opacity">',this.createElSelect_("backgroundOpacity",t),"</span>","</fieldset>"].join("")},r.prototype.createElWinColor_=function(){var t="captions-window-"+this.id_;return['<fieldset class="vjs-window-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Window"),"</legend>",this.createElSelect_("windowColor",t),'<span class="vjs-window-opacity vjs-opacity">',this.createElSelect_("windowOpacity",t),"</span>","</fieldset>"].join("")},r.prototype.createElColors_=function(){return x("div",{className:"vjs-track-settings-colors",innerHTML:[this.createElFgColor_(),this.createElBgColor_(),this.createElWinColor_()].join("")})},r.prototype.createElFont_=function(){return x("div",{className:"vjs-track-settings-font",innerHTML:['<fieldset class="vjs-font-percent vjs-track-setting">',this.createElSelect_("fontPercent","","legend"),"</fieldset>",'<fieldset class="vjs-edge-style vjs-track-setting">',this.createElSelect_("edgeStyle","","legend"),"</fieldset>",'<fieldset class="vjs-font-family vjs-track-setting">',this.createElSelect_("fontFamily","","legend"),"</fieldset>"].join("")})},r.prototype.createElControls_=function(){var t=this.localize("restore all settings to the default values");return x("div",{className:"vjs-track-settings-controls",innerHTML:['<button class="vjs-default-button" title="'+t+'">',this.localize("Reset"),'<span class="vjs-control-text"> '+t+"</span>","</button>",'<button class="vjs-done-button">'+this.localize("Done")+"</button>"].join("")})},r.prototype.content=function(){return[this.createElColors_(),this.createElFont_(),this.createElControls_()]},r.prototype.label=function(){return this.localize("Caption Settings Dialog")},r.prototype.description=function(){return this.localize("Beginning of dialog window. Escape will cancel and close the window.")},r.prototype.buildCSSClass=function(){return n.prototype.buildCSSClass.call(this)+" vjs-text-track-settings"},r.prototype.getValues=function(){var s=this;return function(i,n){var t=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0;return T(i).reduce(function(t,e){return n(t,i[e],e)},t)}(or,function(t,e,i){var n,r,a=(n=s.$(e.selector),r=e.parser,ur(n.options[n.options.selectedIndex].value,r));return void 0!==a&&(t[i]=a),t},{})},r.prototype.setValues=function(i){var n=this;S(or,function(t,e){!function(t,e,i){if(e)for(var n=0;n<t.options.length;n++)if(ur(t.options[n].value,i)===e){t.selectedIndex=n;break}}(n.$(t.selector),i[e],t.parser)})},r.prototype.setDefaults=function(){var i=this;S(or,function(t){var e=t.hasOwnProperty("default")?t.default:0;i.$(t.selector).selectedIndex=e})},r.prototype.restoreSettings=function(){var t=void 0;try{t=JSON.parse(g.localStorage.getItem($n))}catch(t){f.warn(t)}t&&this.setValues(t)},r.prototype.saveSettings=function(){if(this.options_.persistTextTrackSettings){var t=this.getValues();try{Object.keys(t).length?g.localStorage.setItem($n,JSON.stringify(t)):g.localStorage.removeItem($n)}catch(t){f.warn(t)}}},r.prototype.updateDisplay=function(){var t=this.player_.getChild("textTrackDisplay");t&&t.updateDisplay()},r.prototype.conditionalBlur_=function(){this.previouslyActiveEl_=null,this.off(p,"keydown",this.handleKeyDown);var t=this.player_.controlBar,e=t&&t.subsCapsButton,i=t&&t.captionsButton;e?e.focus():i&&i.focus()},r}(Be);Xt.registerComponent("TextTrackSettings",lr);var cr=function(a){function s(t,e){y(this,s);var i=e.ResizeObserver||g.ResizeObserver;null===e.ResizeObserver&&(i=!1);var n=Gt({createEl:!i,reportTouchActivity:!1},e),r=_(this,a.call(this,t,n));return r.ResizeObserver=e.ResizeObserver||g.ResizeObserver,r.loadListener_=null,r.resizeObserver_=null,r.debouncedHandler_=Ut(function(){r.resizeHandler()},100,!1,r),i?(r.resizeObserver_=new r.ResizeObserver(r.debouncedHandler_),r.resizeObserver_.observe(t.el())):(r.loadListener_=function(){r.el_&&r.el_.contentWindow&&vt(r.el_.contentWindow,"resize",r.debouncedHandler_)},r.one("load",r.loadListener_)),r}return v(s,a),s.prototype.createEl=function(){return a.prototype.createEl.call(this,"iframe",{className:"vjs-resize-manager"})},s.prototype.resizeHandler=function(){this.player_&&this.player_.trigger&&this.player_.trigger("playerresize")},s.prototype.dispose=function(){this.debouncedHandler_&&this.debouncedHandler_.cancel(),this.resizeObserver_&&(this.player_.el()&&this.resizeObserver_.unobserve(this.player_.el()),this.resizeObserver_.disconnect()),this.el_&&this.el_.contentWindow&&_t(this.el_.contentWindow,"resize",this.debouncedHandler_),this.loadListener_&&this.off("load",this.loadListener_),this.ResizeObserver=null,this.resizeObserver=null,this.debouncedHandler_=null,this.loadListener_=null},s}(Xt);Xt.registerComponent("ResizeManager",cr);var hr=function(t){var e=t.el();if(e.hasAttribute("src"))return t.triggerSourceset(e.src),!0;var i=t.$$("source"),n=[],r="";if(!i.length)return!1;for(var a=0;a<i.length;a++){var s=i[a].src;s&&-1===n.indexOf(s)&&n.push(s)}return!!n.length&&(1===n.length&&(r=n[0]),t.triggerSourceset(r),!0)},dr=Object.defineProperty({},"innerHTML",{get:function(){return this.cloneNode(!0).innerHTML},set:function(t){var e=p.createElement(this.nodeName.toLowerCase());e.innerHTML=t;for(var i=p.createDocumentFragment();e.childNodes.length;)i.appendChild(e.childNodes[0]);return this.innerText="",g.Element.prototype.appendChild.call(this,i),this.innerHTML}}),pr=function(t,e){for(var i={},n=0;n<t.length&&!((i=Object.getOwnPropertyDescriptor(t[n],e))&&i.set&&i.get);n++);return i.enumerable=!0,i.configurable=!0,i},fr=function(a){var s=a.el();if(!s.resetSourceWatch_){var e={},t=pr([a.el(),g.HTMLMediaElement.prototype,g.Element.prototype,dr],"innerHTML"),i=function(r){return function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];var n=r.apply(s,e);return hr(a),n}};["append","appendChild","insertAdjacentHTML"].forEach(function(t){s[t]&&(e[t]=s[t],s[t]=i(e[t]))}),Object.defineProperty(s,"innerHTML",Gt(t,{set:i(t.set)})),s.resetSourceWatch_=function(){s.resetSourceWatch_=null,Object.keys(e).forEach(function(t){s[t]=e[t]}),Object.defineProperty(s,"innerHTML",t)},a.one("sourceset",s.resetSourceWatch_)}},mr=Object.defineProperty({},"src",{get:function(){return this.hasAttribute("src")?ti(g.Element.prototype.getAttribute.call(this,"src")):""},set:function(t){return g.Element.prototype.setAttribute.call(this,"src",t),t}}),gr=function(n){if(n.featuresSourceset){var r=n.el();if(!r.resetSourceset_){var i=pr([n.el(),g.HTMLMediaElement.prototype,mr],"src"),a=r.setAttribute,e=r.load;Object.defineProperty(r,"src",Gt(i,{set:function(t){var e=i.set.call(r,t);return n.triggerSourceset(r.src),e}})),r.setAttribute=function(t,e){var i=a.call(r,t,e);return/src/i.test(t)&&n.triggerSourceset(r.src),i},r.load=function(){var t=e.call(r);return hr(n)||(n.triggerSourceset(""),fr(n)),t},r.currentSrc?n.triggerSourceset(r.currentSrc):hr(n)||fr(n),r.resetSourceset_=function(){r.resetSourceset_=null,r.load=e,r.setAttribute=a,Object.defineProperty(r,"src",i),r.resetSourceWatch_&&r.resetSourceWatch_()}}}},yr=h(["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."],["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."]),vr=function(c){function h(t,e){y(this,h);var i=_(this,c.call(this,t,e)),n=t.source,r=!1;if(n&&(i.el_.currentSrc!==n.src||t.tag&&3===t.tag.initNetworkState_)?i.setSource(n):i.handleLateInit_(i.el_),t.enableSourceset&&i.setupSourcesetHandling_(),i.el_.hasChildNodes()){for(var a=i.el_.childNodes,s=a.length,o=[];s--;){var u=a[s];"track"===u.nodeName.toLowerCase()&&(i.featuresNativeTextTracks?(i.remoteTextTrackEls().addTrackElement_(u),i.remoteTextTracks().addTrack(u.track),i.textTracks().addTrack(u.track),r||i.el_.hasAttribute("crossorigin")||!ii(u.src)||(r=!0)):o.push(u))}for(var l=0;l<o.length;l++)i.el_.removeChild(o[l])}return i.proxyNativeTracks_(),i.featuresNativeTextTracks&&r&&f.warn(m(yr)),i.restoreMetadataTracksInIOSNativePlayer_(),(ge||ie||ue)&&!0===t.nativeControlsForTouch&&i.setControls(!0),i.proxyWebkitFullscreen_(),i.triggerReady(),i}return v(h,c),h.prototype.dispose=function(){this.el_&&this.el_.resetSourceset_&&this.el_.resetSourceset_(),h.disposeMediaElement(this.el_),this.options_=null,c.prototype.dispose.call(this)},h.prototype.setupSourcesetHandling_=function(){gr(this)},h.prototype.restoreMetadataTracksInIOSNativePlayer_=function(){var n=this.textTracks(),r=void 0,t=function(){r=[];for(var t=0;t<n.length;t++){var e=n[t];"metadata"===e.kind&&r.push({track:e,storedMode:e.mode})}};t(),n.addEventListener("change",t),this.on("dispose",function(){return n.removeEventListener("change",t)});var e=function t(){for(var e=0;e<r.length;e++){var i=r[e];"disabled"===i.track.mode&&i.track.mode!==i.storedMode&&(i.track.mode=i.storedMode)}n.removeEventListener("change",t)};this.on("webkitbeginfullscreen",function(){n.removeEventListener("change",t),n.removeEventListener("change",e),n.addEventListener("change",e)}),this.on("webkitendfullscreen",function(){n.removeEventListener("change",t),n.addEventListener("change",t),n.removeEventListener("change",e)})},h.prototype.overrideNative_=function(t,e){var i=this;if(e===this["featuresNative"+t+"Tracks"]){var n=t.toLowerCase();this[n+"TracksListeners_"]&&Object.keys(this[n+"TracksListeners_"]).forEach(function(t){i.el()[n+"Tracks"].removeEventListener(t,i[n+"TracksListeners_"][t])}),this["featuresNative"+t+"Tracks"]=!e,this[n+"TracksListeners_"]=null,this.proxyNativeTracksForType_(n)}},h.prototype.overrideNativeAudioTracks=function(t){this.overrideNative_("Audio",t)},h.prototype.overrideNativeVideoTracks=function(t){this.overrideNative_("Video",t)},h.prototype.proxyNativeTracksForType_=function(t){var n=this,e=wi[t],r=this.el()[e.getterName],a=this[e.getterName]();if(this["featuresNative"+e.capitalName+"Tracks"]&&r&&r.addEventListener){var s={change:function(t){a.trigger({type:"change",target:a,currentTarget:a,srcElement:a})},addtrack:function(t){a.addTrack(t.track)},removetrack:function(t){a.removeTrack(t.track)}},i=function(){for(var t=[],e=0;e<a.length;e++){for(var i=!1,n=0;n<r.length;n++)if(r[n]===a[e]){i=!0;break}i||t.push(a[e])}for(;t.length;)a.removeTrack(t.shift())};this[e.getterName+"Listeners_"]=s,Object.keys(s).forEach(function(e){var i=s[e];r.addEventListener(e,i),n.on("dispose",function(t){return r.removeEventListener(e,i)})}),this.on("loadstart",i),this.on("dispose",function(t){return n.off("loadstart",i)})}},h.prototype.proxyNativeTracks_=function(){var e=this;wi.names.forEach(function(t){e.proxyNativeTracksForType_(t)})},h.prototype.createEl=function(){var t=this.options_.tag;if(!t||!this.options_.playerElIngest&&!this.movingMediaElementInDOM){if(t){var e=t.cloneNode(!0);t.parentNode&&t.parentNode.insertBefore(e,t),h.disposeMediaElement(t),t=e}else{t=p.createElement("video");var i=Gt({},this.options_.tag&&V(this.options_.tag));ge&&!0===this.options_.nativeControlsForTouch||delete i.controls,H(t,k(i,{id:this.options_.techId,class:"vjs-tech"}))}t.playerId=this.options_.playerId}"undefined"!=typeof this.options_.preload&&z(t,"preload",this.options_.preload);for(var n=["loop","muted","playsinline","autoplay"],r=0;r<n.length;r++){var a=n[r],s=this.options_[a];"undefined"!=typeof s&&(s?z(t,a,a):W(t,a),t[a]=s)}return t},h.prototype.handleLateInit_=function(t){if(0!==t.networkState&&3!==t.networkState){if(0===t.readyState){var e=!1,i=function(){e=!0};this.on("loadstart",i);var n=function(){e||this.trigger("loadstart")};return this.on("loadedmetadata",n),void this.ready(function(){this.off("loadstart",i),this.off("loadedmetadata",n),e||this.trigger("loadstart")})}var r=["loadstart"];r.push("loadedmetadata"),2<=t.readyState&&r.push("loadeddata"),3<=t.readyState&&r.push("canplay"),4<=t.readyState&&r.push("canplaythrough"),this.ready(function(){r.forEach(function(t){this.trigger(t)},this)})}},h.prototype.setCurrentTime=function(t){try{this.el_.currentTime=t}catch(t){f(t,"Video is not ready. (Video.js)")}},h.prototype.duration=function(){var e=this;if(this.el_.duration===1/0&&se&&he&&0===this.el_.currentTime){return this.on("timeupdate",function t(){0<e.el_.currentTime&&(e.el_.duration===1/0&&e.trigger("durationchange"),e.off("timeupdate",t))}),NaN}return this.el_.duration||NaN},h.prototype.width=function(){return this.el_.offsetWidth},h.prototype.height=function(){return this.el_.offsetHeight},h.prototype.proxyWebkitFullscreen_=function(){var t=this;if("webkitDisplayingFullscreen"in this.el_){var e=function(){this.trigger("fullscreenchange",{isFullscreen:!1})},i=function(){"webkitPresentationMode"in this.el_&&"picture-in-picture"!==this.el_.webkitPresentationMode&&(this.one("webkitendfullscreen",e),this.trigger("fullscreenchange",{isFullscreen:!0}))};this.on("webkitbeginfullscreen",i),this.on("dispose",function(){t.off("webkitbeginfullscreen",i),t.off("webkitendfullscreen",e)})}},h.prototype.supportsFullScreen=function(){if("function"==typeof this.el_.webkitEnterFullScreen){var t=g.navigator&&g.navigator.userAgent||"";if(/Android/.test(t)||!/Chrome|Mac OS X 10.5/.test(t))return!0}return!1},h.prototype.enterFullScreen=function(){var t=this.el_;t.paused&&t.networkState<=t.HAVE_METADATA?(this.el_.play(),this.setTimeout(function(){t.pause(),t.webkitEnterFullScreen()},0)):t.webkitEnterFullScreen()},h.prototype.exitFullScreen=function(){this.el_.webkitExitFullScreen()},h.prototype.src=function(t){if(void 0===t)return this.el_.src;this.setSrc(t)},h.prototype.reset=function(){h.resetMediaElement(this.el_)},h.prototype.currentSrc=function(){return this.currentSource_?this.currentSource_.src:this.el_.currentSrc},h.prototype.setControls=function(t){this.el_.controls=!!t},h.prototype.addTextTrack=function(t,e,i){return this.featuresNativeTextTracks?this.el_.addTextTrack(t,e,i):c.prototype.addTextTrack.call(this,t,e,i)},h.prototype.createRemoteTextTrack=function(t){if(!this.featuresNativeTextTracks)return c.prototype.createRemoteTextTrack.call(this,t);var e=p.createElement("track");return t.kind&&(e.kind=t.kind),t.label&&(e.label=t.label),(t.language||t.srclang)&&(e.srclang=t.language||t.srclang),t.default&&(e.default=t.default),t.id&&(e.id=t.id),t.src&&(e.src=t.src),e},h.prototype.addRemoteTextTrack=function(t,e){var i=c.prototype.addRemoteTextTrack.call(this,t,e);return this.featuresNativeTextTracks&&this.el().appendChild(i),i},h.prototype.removeRemoteTextTrack=function(t){if(c.prototype.removeRemoteTextTrack.call(this,t),this.featuresNativeTextTracks)for(var e=this.$$("track"),i=e.length;i--;)t!==e[i]&&t!==e[i].track||this.el().removeChild(e[i])},h.prototype.getVideoPlaybackQuality=function(){if("function"==typeof this.el().getVideoPlaybackQuality)return this.el().getVideoPlaybackQuality();var t={};return"undefined"!=typeof this.el().webkitDroppedFrameCount&&"undefined"!=typeof this.el().webkitDecodedFrameCount&&(t.droppedVideoFrames=this.el().webkitDroppedFrameCount,t.totalVideoFrames=this.el().webkitDecodedFrameCount),g.performance&&"function"==typeof g.performance.now?t.creationTime=g.performance.now():g.performance&&g.performance.timing&&"number"==typeof g.performance.timing.navigationStart&&(t.creationTime=g.Date.now()-g.performance.timing.navigationStart),t},h}(Oi);if(P()){vr.TEST_VID=p.createElement("video");var _r=p.createElement("track");_r.kind="captions",_r.srclang="en",_r.label="English",vr.TEST_VID.appendChild(_r)}vr.isSupported=function(){try{vr.TEST_VID.volume=.5}catch(t){return!1}return!(!vr.TEST_VID||!vr.TEST_VID.canPlayType)},vr.canPlayType=function(t){return vr.TEST_VID.canPlayType(t)},vr.canPlaySource=function(t,e){return vr.canPlayType(t.type)},vr.canControlVolume=function(){try{var t=vr.TEST_VID.volume;return vr.TEST_VID.volume=t/2+.1,t!==vr.TEST_VID.volume}catch(t){return!1}},vr.canMuteVolume=function(){try{var t=vr.TEST_VID.muted;return vr.TEST_VID.muted=!t,vr.TEST_VID.muted?z(vr.TEST_VID,"muted","muted"):W(vr.TEST_VID,"muted"),t!==vr.TEST_VID.muted}catch(t){return!1}},vr.canControlPlaybackRate=function(){if(se&&he&&de<58)return!1;try{var t=vr.TEST_VID.playbackRate;return vr.TEST_VID.playbackRate=t/2+.1,t!==vr.TEST_VID.playbackRate}catch(t){return!1}},vr.canOverrideAttributes=function(){try{var t=function(){};Object.defineProperty(p.createElement("video"),"src",{get:t,set:t}),Object.defineProperty(p.createElement("audio"),"src",{get:t,set:t}),Object.defineProperty(p.createElement("video"),"innerHTML",{get:t,set:t}),Object.defineProperty(p.createElement("audio"),"innerHTML",{get:t,set:t})}catch(t){return!1}return!0},vr.supportsNativeTextTracks=function(){return me||re&&he},vr.supportsNativeVideoTracks=function(){return!(!vr.TEST_VID||!vr.TEST_VID.videoTracks)},vr.supportsNativeAudioTracks=function(){return!(!vr.TEST_VID||!vr.TEST_VID.audioTracks)},vr.Events=["loadstart","suspend","abort","error","emptied","stalled","loadedmetadata","loadeddata","canplay","canplaythrough","playing","waiting","seeking","seeked","ended","durationchange","timeupdate","progress","play","pause","ratechange","resize","volumechange"],vr.prototype.featuresVolumeControl=vr.canControlVolume(),vr.prototype.featuresMuteControl=vr.canMuteVolume(),vr.prototype.featuresPlaybackRate=vr.canControlPlaybackRate(),vr.prototype.featuresSourceset=vr.canOverrideAttributes(),vr.prototype.movingMediaElementInDOM=!re,vr.prototype.featuresFullscreenResize=!0,vr.prototype.featuresProgressEvents=!0,vr.prototype.featuresTimeupdateEvents=!0,vr.prototype.featuresNativeTextTracks=vr.supportsNativeTextTracks(),vr.prototype.featuresNativeVideoTracks=vr.supportsNativeVideoTracks(),vr.prototype.featuresNativeAudioTracks=vr.supportsNativeAudioTracks();var br=vr.TEST_VID&&vr.TEST_VID.constructor.prototype.canPlayType,Tr=/^application\/(?:x-|vnd\.apple\.)mpegurl/i;vr.patchCanPlayType=function(){4<=oe&&!le&&!he&&(vr.TEST_VID.constructor.prototype.canPlayType=function(t){return t&&Tr.test(t)?"maybe":br.call(this,t)})},vr.unpatchCanPlayType=function(){var t=vr.TEST_VID.constructor.prototype.canPlayType;return vr.TEST_VID.constructor.prototype.canPlayType=br,t},vr.patchCanPlayType(),vr.disposeMediaElement=function(t){if(t){for(t.parentNode&&t.parentNode.removeChild(t);t.hasChildNodes();)t.removeChild(t.firstChild);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},vr.resetMediaElement=function(t){if(t){for(var e=t.querySelectorAll("source"),i=e.length;i--;)t.removeChild(e[i]);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},["muted","defaultMuted","autoplay","controls","loop","playsinline"].forEach(function(t){vr.prototype[t]=function(){return this.el_[t]||this.el_.hasAttribute(t)}}),["muted","defaultMuted","autoplay","loop","playsinline"].forEach(function(e){vr.prototype["set"+Wt(e)]=function(t){(this.el_[e]=t)?this.el_.setAttribute(e,e):this.el_.removeAttribute(e)}}),["paused","currentTime","buffered","volume","poster","preload","error","seeking","seekable","ended","playbackRate","defaultPlaybackRate","played","networkState","readyState","videoWidth","videoHeight"].forEach(function(t){vr.prototype[t]=function(){return this.el_[t]}}),["volume","src","poster","preload","playbackRate","defaultPlaybackRate"].forEach(function(e){vr.prototype["set"+Wt(e)]=function(t){this.el_[e]=t}}),["pause","load","play"].forEach(function(t){vr.prototype[t]=function(){return this.el_[t]()}}),Oi.withSourceHandlers(vr),vr.nativeSourceHandler={},vr.nativeSourceHandler.canPlayType=function(t){try{return vr.TEST_VID.canPlayType(t)}catch(t){return""}},vr.nativeSourceHandler.canHandleSource=function(t,e){if(t.type)return vr.nativeSourceHandler.canPlayType(t.type);if(t.src){var i=ei(t.src);return vr.nativeSourceHandler.canPlayType("video/"+i)}return""},vr.nativeSourceHandler.handleSource=function(t,e,i){e.setSrc(t.src)},vr.nativeSourceHandler.dispose=function(){},vr.registerSourceHandler(vr.nativeSourceHandler),Oi.registerTech("Html5",vr);var Sr=h(["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "],["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "]),kr=["progress","abort","suspend","emptied","stalled","loadedmetadata","loadeddata","timeupdate","resize","volumechange","texttrackchange"],Cr={canplay:"CanPlay",canplaythrough:"CanPlayThrough",playing:"Playing",seeked:"Seeked"},wr=function(c){function h(t,e,i){if(y(this,h),t.id=t.id||e.id||"vjs_video_"+ot(),(e=k(h.getTagSettings(t),e)).initChildren=!1,e.createEl=!1,e.evented=!1,e.reportTouchActivity=!1,!e.language)if("function"==typeof t.closest){var n=t.closest("[lang]");n&&n.getAttribute&&(e.language=n.getAttribute("lang"))}else for(var r=t;r&&1===r.nodeType;){if(V(r).hasOwnProperty("lang")){e.language=r.getAttribute("lang");break}r=r.parentNode}var a=_(this,c.call(this,null,e,i));if(a.isPosterFromTech_=!1,a.queuedCallbacks_=[],a.isReady_=!1,a.hasStarted_=!1,a.userActive_=!1,!a.options_||!a.options_.techOrder||!a.options_.techOrder.length)throw new Error("No techOrder specified. Did you overwrite videojs.options instead of just changing the properties you want to override?");if(a.tag=t,a.tagAttributes=t&&V(t),a.language(a.options_.language),e.languages){var s={};Object.getOwnPropertyNames(e.languages).forEach(function(t){s[t.toLowerCase()]=e.languages[t]}),a.languages_=s}else a.languages_=h.prototype.options_.languages;a.cache_={},a.poster_=e.poster||"",a.controls_=!!e.controls,a.cache_.lastVolume=1,t.controls=!1,t.removeAttribute("controls"),t.hasAttribute("autoplay")?a.options_.autoplay=!0:a.autoplay(a.options_.autoplay),a.scrubbing_=!1,a.el_=a.createEl(),a.cache_.lastPlaybackRate=a.defaultPlaybackRate(),Vt(a,{eventBusKey:"el_"});var o=Gt(a.options_);if(e.plugins){var u=e.plugins;Object.keys(u).forEach(function(t){if("function"!=typeof this[t])throw new Error('plugin "'+t+'" does not exist');this[t](u[t])},a)}a.options_.playerOptions=o,a.middleware_=[],a.initChildren(),a.isAudio("audio"===t.nodeName.toLowerCase()),a.controls()?a.addClass("vjs-controls-enabled"):a.addClass("vjs-controls-disabled"),a.el_.setAttribute("role","region"),a.isAudio()?a.el_.setAttribute("aria-label",a.localize("Audio Player")):a.el_.setAttribute("aria-label",a.localize("Video Player")),a.isAudio()&&a.addClass("vjs-audio"),a.flexNotSupported_()&&a.addClass("vjs-no-flex"),re||a.addClass("vjs-workinghover"),h.players[a.id_]=a;var l=d.split(".")[0];return a.addClass("vjs-v"+l),a.userActive(!0),a.reportUserActivity(),a.one("play",a.listenForUserActivity_),a.on("fullscreenchange",a.handleFullscreenChange_),a.on("stageclick",a.handleStageClick_),a.changingSrc_=!1,a.playWaitingForReady_=!1,a.playOnLoadstart_=null,a}return v(h,c),h.prototype.dispose=function(){this.trigger("dispose"),this.off("dispose"),this.styleEl_&&this.styleEl_.parentNode&&(this.styleEl_.parentNode.removeChild(this.styleEl_),this.styleEl_=null),h.players[this.id_]=null,this.tag&&this.tag.player&&(this.tag.player=null),this.el_&&this.el_.player&&(this.el_.player=null),this.tech_&&(this.tech_.dispose(),this.isPosterFromTech_=!1,this.poster_=""),this.playerElIngest_&&(this.playerElIngest_=null),this.tag&&(this.tag=null),Ui[this.id()]=null,c.prototype.dispose.call(this)},h.prototype.createEl=function(){var e=this.tag,i=void 0,t=this.playerElIngest_=e.parentNode&&e.parentNode.hasAttribute&&e.parentNode.hasAttribute("data-vjs-player"),n="video-js"===this.tag.tagName.toLowerCase();t?i=this.el_=e.parentNode:n||(i=this.el_=c.prototype.createEl.call(this,"div"));var r=V(e);if(n){for(i=this.el_=e,e=this.tag=p.createElement("video");i.children.length;)e.appendChild(i.firstChild);N(i,"video-js")||B(i,"video-js"),i.appendChild(e),t=this.playerElIngest_=i,Object.keys(i).forEach(function(t){e[t]=i[t]})}if(e.setAttribute("tabindex","-1"),r.tabindex="-1",pe&&(e.setAttribute("role","application"),r.role="application"),e.removeAttribute("width"),e.removeAttribute("height"),"width"in r&&delete r.width,"height"in r&&delete r.height,Object.getOwnPropertyNames(r).forEach(function(t){n&&"class"===t||i.setAttribute(t,r[t]),n&&e.setAttribute(t,r[t])}),e.playerId=e.id,e.id+="_html5_api",e.className="vjs-tech",e.player=i.player=this,this.addClass("vjs-paused"),!0!==g.VIDEOJS_NO_DYNAMIC_STYLE){this.styleEl_=At("vjs-styles-dimensions");var a=nt(".vjs-styles-defaults"),s=nt("head");s.insertBefore(this.styleEl_,a?a.nextSibling:s.firstChild)}this.width(this.options_.width),this.height(this.options_.height),this.fluid(this.options_.fluid),this.aspectRatio(this.options_.aspectRatio);for(var o=e.getElementsByTagName("a"),u=0;u<o.length;u++){var l=o.item(u);B(l,"vjs-hidden"),l.setAttribute("hidden","hidden")}return e.initNetworkState_=e.networkState,e.parentNode&&!t&&e.parentNode.insertBefore(i,e),M(e,i),this.children_.unshift(e),this.el_.setAttribute("lang",this.language_),this.el_=i},h.prototype.width=function(t){return this.dimension("width",t)},h.prototype.height=function(t){return this.dimension("height",t)},h.prototype.dimension=function(t,e){var i=t+"_";if(void 0===e)return this[i]||0;if(""===e)return this[i]=void 0,void this.updateStyleEl_();var n=parseFloat(e);isNaN(n)?f.error('Improper value "'+e+'" supplied for for '+t):(this[i]=n,this.updateStyleEl_())},h.prototype.fluid=function(t){if(void 0===t)return!!this.fluid_;this.fluid_=!!t,t?this.addClass("vjs-fluid"):this.removeClass("vjs-fluid"),this.updateStyleEl_()},h.prototype.aspectRatio=function(t){if(void 0===t)return this.aspectRatio_;if(!/^\d+\:\d+$/.test(t))throw new Error("Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.");this.aspectRatio_=t,this.fluid(!0),this.updateStyleEl_()},h.prototype.updateStyleEl_=function(){if(!0!==g.VIDEOJS_NO_DYNAMIC_STYLE){var t=void 0,e=void 0,i=void 0,n=(void 0!==this.aspectRatio_&&"auto"!==this.aspectRatio_?this.aspectRatio_:0<this.videoWidth()?this.videoWidth()+":"+this.videoHeight():"16:9").split(":"),r=n[1]/n[0];t=void 0!==this.width_?this.width_:void 0!==this.height_?this.height_/r:this.videoWidth()||300,e=void 0!==this.height_?this.height_:t*r,i=/^[^a-zA-Z]/.test(this.id())?"dimensions-"+this.id():this.id()+"-dimensions",this.addClass(i),Lt(this.styleEl_,"\n ."+i+" {\n width: "+t+"px;\n height: "+e+"px;\n }\n\n ."+i+".vjs-fluid {\n padding-top: "+100*r+"%;\n }\n ")}else{var a="number"==typeof this.width_?this.width_:this.options_.width,s="number"==typeof this.height_?this.height_:this.options_.height,o=this.tech_&&this.tech_.el();o&&(0<=a&&(o.width=a),0<=s&&(o.height=s))}},h.prototype.loadTech_=function(t,e){var i=this;this.tech_&&this.unloadTech_();var n=Wt(t),r=t.charAt(0).toLowerCase()+t.slice(1);"Html5"!==n&&this.tag&&(Oi.getTech("Html5").disposeMediaElement(this.tag),this.tag.player=null,this.tag=null),this.techName_=n,this.isReady_=!1;var a={source:e,autoplay:"string"!=typeof this.autoplay()&&this.autoplay(),nativeControlsForTouch:this.options_.nativeControlsForTouch,playerId:this.id(),techId:this.id()+"_"+r+"_api",playsinline:this.options_.playsinline,preload:this.options_.preload,loop:this.options_.loop,muted:this.options_.muted,poster:this.poster(),language:this.language(),playerElIngest:this.playerElIngest_||!1,"vtt.js":this.options_["vtt.js"],canOverridePoster:!!this.options_.techCanOverridePoster,enableSourceset:this.options_.enableSourceset};Ai.names.forEach(function(t){var e=Ai[t];a[e.getterName]=i[e.privateName]}),k(a,this.options_[n]),k(a,this.options_[r]),k(a,this.options_[t.toLowerCase()]),this.tag&&(a.tag=this.tag),e&&e.src===this.cache_.src&&0<this.cache_.currentTime&&(a.startTime=this.cache_.currentTime);var s=Oi.getTech(t);if(!s)throw new Error("No Tech named '"+n+"' exists! '"+n+"' should be registered using videojs.registerTech()'");this.tech_=new s(a),this.tech_.ready(Ot(this,this.handleTechReady_),!0),Me(this.textTracksJson_||[],this.tech_),kr.forEach(function(t){i.on(i.tech_,t,i["handleTech"+Wt(t)+"_"])}),Object.keys(Cr).forEach(function(e){i.on(i.tech_,e,function(t){0===i.tech_.playbackRate()&&i.tech_.seeking()?i.queuedCallbacks_.push({callback:i["handleTech"+Cr[e]+"_"].bind(i),event:t}):i["handleTech"+Cr[e]+"_"](t)})}),this.on(this.tech_,"loadstart",this.handleTechLoadStart_),this.on(this.tech_,"sourceset",this.handleTechSourceset_),this.on(this.tech_,"waiting",this.handleTechWaiting_),this.on(this.tech_,"ended",this.handleTechEnded_),this.on(this.tech_,"seeking",this.handleTechSeeking_),this.on(this.tech_,"play",this.handleTechPlay_),this.on(this.tech_,"firstplay",this.handleTechFirstPlay_),this.on(this.tech_,"pause",this.handleTechPause_),this.on(this.tech_,"durationchange",this.handleTechDurationChange_),this.on(this.tech_,"fullscreenchange",this.handleTechFullscreenChange_),this.on(this.tech_,"error",this.handleTechError_),this.on(this.tech_,"loadedmetadata",this.updateStyleEl_),this.on(this.tech_,"posterchange",this.handleTechPosterChange_),this.on(this.tech_,"textdata",this.handleTechTextData_),this.on(this.tech_,"ratechange",this.handleTechRateChange_),this.usingNativeControls(this.techGet_("controls")),this.controls()&&!this.usingNativeControls()&&this.addTechControlsListeners_(),this.tech_.el().parentNode===this.el()||"Html5"===n&&this.tag||M(this.tech_.el(),this.el()),this.tag&&(this.tag.player=null,this.tag=null)},h.prototype.unloadTech_=function(){var i=this;Ai.names.forEach(function(t){var e=Ai[t];i[e.privateName]=i[e.getterName]()}),this.textTracksJson_=Re(this.tech_),this.isReady_=!1,this.tech_.dispose(),this.tech_=!1,this.isPosterFromTech_&&(this.poster_="",this.trigger("posterchange")),this.isPosterFromTech_=!1},h.prototype.tech=function(t){return void 0===t&&f.warn(m(Sr)),this.tech_},h.prototype.addTechControlsListeners_=function(){this.removeTechControlsListeners_(),this.on(this.tech_,"mousedown",this.handleTechClick_),this.on(this.tech_,"dblclick",this.handleTechDoubleClick_),this.on(this.tech_,"touchstart",this.handleTechTouchStart_),this.on(this.tech_,"touchmove",this.handleTechTouchMove_),this.on(this.tech_,"touchend",this.handleTechTouchEnd_),this.on(this.tech_,"tap",this.handleTechTap_)},h.prototype.removeTechControlsListeners_=function(){this.off(this.tech_,"tap",this.handleTechTap_),this.off(this.tech_,"touchstart",this.handleTechTouchStart_),this.off(this.tech_,"touchmove",this.handleTechTouchMove_),this.off(this.tech_,"touchend",this.handleTechTouchEnd_),this.off(this.tech_,"mousedown",this.handleTechClick_),this.off(this.tech_,"dblclick",this.handleTechDoubleClick_)},h.prototype.handleTechReady_=function(){this.triggerReady(),this.cache_.volume&&this.techCall_("setVolume",this.cache_.volume),this.handleTechPosterChange_(),this.handleTechDurationChange_()},h.prototype.handleTechLoadStart_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-seeking"),this.error(null),this.paused()?(this.hasStarted(!1),this.trigger("loadstart")):(this.trigger("loadstart"),this.trigger("firstplay")),this.manualAutoplay_(this.autoplay())},h.prototype.manualAutoplay_=function(e){var i=this;if(this.tech_&&"string"==typeof e){var t=function(){var e=i.muted();i.muted(!0);var t=i.play();if(t&&t.then&&t.catch)return t.catch(function(t){i.muted(e)})},n=void 0;if("any"===e?(n=this.play())&&n.then&&n.catch&&n.catch(function(){return t()}):n="muted"===e?t():this.play(),n&&n.then&&n.catch)return n.then(function(){i.trigger({type:"autoplay-success",autoplay:e})}).catch(function(t){i.trigger({type:"autoplay-failure",autoplay:e})})}},h.prototype.updateSourceCaches_=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=t,i="";if("string"!=typeof e&&(e=t.src,i=t.type),!/^blob:/.test(e)){this.cache_.source=this.cache_.source||{},this.cache_.sources=this.cache_.sources||[],e&&!i&&(i=function(t,e){if(!e)return"";if(t.cache_.source.src===e&&t.cache_.source.type)return t.cache_.source.type;var i=t.cache_.sources.filter(function(t){return t.src===e});if(i.length)return i[0].type;for(var n=t.$$("source"),r=0;r<n.length;r++){var a=n[r];if(a.type&&a.src&&a.src===e)return a.type}return Fi(e)}(this,e)),this.cache_.source=Gt({},t,{src:e,type:i});for(var n=this.cache_.sources.filter(function(t){return t.src&&t.src===e}),r=[],a=this.$$("source"),s=[],o=0;o<a.length;o++){var u=V(a[o]);r.push(u),u.src&&u.src===e&&s.push(u.src)}s.length&&!n.length?this.cache_.sources=r:n.length||(this.cache_.sources=[this.cache_.source]),this.cache_.src=e}},h.prototype.handleTechSourceset_=function(t){var i=this;if(!this.changingSrc_&&(this.updateSourceCaches_(t.src),!t.src)){this.tech_.one(["sourceset","loadstart"],function t(e){"sourceset"!==e.type&&i.updateSourceCaches_(i.techGet_("currentSrc")),i.tech_.off(["sourceset","loadstart"],t)})}this.trigger({src:t.src,type:"sourceset"})},h.prototype.hasStarted=function(t){if(void 0===t)return this.hasStarted_;t!==this.hasStarted_&&(this.hasStarted_=t,this.hasStarted_?(this.addClass("vjs-has-started"),this.trigger("firstplay")):this.removeClass("vjs-has-started"))},h.prototype.handleTechPlay_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.hasStarted(!0),this.trigger("play")},h.prototype.handleTechRateChange_=function(){0<this.tech_.playbackRate()&&0===this.cache_.lastPlaybackRate&&(this.queuedCallbacks_.forEach(function(t){return t.callback(t.event)}),this.queuedCallbacks_=[]),this.cache_.lastPlaybackRate=this.tech_.playbackRate(),this.trigger("ratechange")},h.prototype.handleTechWaiting_=function(){var t=this;this.addClass("vjs-waiting"),this.trigger("waiting"),this.one("timeupdate",function(){return t.removeClass("vjs-waiting")})},h.prototype.handleTechCanPlay_=function(){this.removeClass("vjs-waiting"),this.trigger("canplay")},h.prototype.handleTechCanPlayThrough_=function(){this.removeClass("vjs-waiting"),this.trigger("canplaythrough")},h.prototype.handleTechPlaying_=function(){this.removeClass("vjs-waiting"),this.trigger("playing")},h.prototype.handleTechSeeking_=function(){this.addClass("vjs-seeking"),this.trigger("seeking")},h.prototype.handleTechSeeked_=function(){this.removeClass("vjs-seeking"),this.trigger("seeked")},h.prototype.handleTechFirstPlay_=function(){this.options_.starttime&&(f.warn("Passing the `starttime` option to the player will be deprecated in 6.0"),this.currentTime(this.options_.starttime)),this.addClass("vjs-has-started"),this.trigger("firstplay")},h.prototype.handleTechPause_=function(){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.trigger("pause")},h.prototype.handleTechEnded_=function(){this.addClass("vjs-ended"),this.options_.loop?(this.currentTime(0),this.play()):this.paused()||this.pause(),this.trigger("ended")},h.prototype.handleTechDurationChange_=function(){this.duration(this.techGet_("duration"))},h.prototype.handleTechClick_=function(t){it(t)&&this.controls_&&(this.paused()?De(this.play()):this.pause())},h.prototype.handleTechDoubleClick_=function(e){this.controls_&&(Array.prototype.some.call(this.$$(".vjs-control-bar, .vjs-modal-dialog"),function(t){return t.contains(e.target)})||(this.isFullscreen()?this.exitFullscreen():this.requestFullscreen()))},h.prototype.handleTechTap_=function(){this.userActive(!this.userActive())},h.prototype.handleTechTouchStart_=function(){this.userWasActive=this.userActive()},h.prototype.handleTechTouchMove_=function(){this.userWasActive&&this.reportUserActivity()},h.prototype.handleTechTouchEnd_=function(t){t.preventDefault()},h.prototype.handleFullscreenChange_=function(){this.isFullscreen()?this.addClass("vjs-fullscreen"):this.removeClass("vjs-fullscreen")},h.prototype.handleStageClick_=function(){this.reportUserActivity()},h.prototype.handleTechFullscreenChange_=function(t,e){e&&this.isFullscreen(e.isFullscreen),this.trigger("fullscreenchange")},h.prototype.handleTechError_=function(){var t=this.tech_.error();this.error(t)},h.prototype.handleTechTextData_=function(){var t=null;1<arguments.length&&(t=arguments[1]),this.trigger("textdata",t)},h.prototype.getCache=function(){return this.cache_},h.prototype.techCall_=function(r,a){this.ready(function(){if(r in Mi)return t=this.middleware_,e=this.tech_,n=a,e[i=r](t.reduce(Bi(i),n));if(r in Ni)return xi(this.middleware_,this.tech_,r,a);var t,e,i,n;try{this.tech_&&this.tech_[r](a)}catch(t){throw f(t),t}},!0)},h.prototype.techGet_=function(e){if(this.tech_&&this.tech_.isReady_){if(e in Ri)return t=this.middleware_,i=this.tech_,n=e,t.reduceRight(Bi(n),i[n]());if(e in Ni)return xi(this.middleware_,this.tech_,e);var t,i,n;try{return this.tech_[e]()}catch(t){if(void 0===this.tech_[e])throw f("Video.js: "+e+" method not defined for "+this.techName_+" playback technology.",t),t;if("TypeError"===t.name)throw f("Video.js: "+e+" unavailable on "+this.techName_+" playback technology element.",t),this.tech_.isReady_=!1,t;throw f(t),t}}},h.prototype.play=function(){var e=this,t=this.options_.Promise||g.Promise;return t?new t(function(t){e.play_(t)}):this.play_()},h.prototype.play_=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:De;if(this.playOnLoadstart_&&this.off("loadstart",this.playOnLoadstart_),this.isReady_){if(!this.changingSrc_&&(this.src()||this.currentSrc()))return void e(this.techGet_("play"));this.playOnLoadstart_=function(){t.playOnLoadstart_=null,e(t.play())},this.one("loadstart",this.playOnLoadstart_)}else{if(this.playWaitingForReady_)return;this.playWaitingForReady_=!0,this.ready(function(){t.playWaitingForReady_=!1,e(t.play())})}},h.prototype.pause=function(){this.techCall_("pause")},h.prototype.paused=function(){return!1!==this.techGet_("paused")},h.prototype.played=function(){return this.techGet_("played")||be(0,0)},h.prototype.scrubbing=function(t){if("undefined"==typeof t)return this.scrubbing_;this.scrubbing_=!!t,t?this.addClass("vjs-scrubbing"):this.removeClass("vjs-scrubbing")},h.prototype.currentTime=function(t){return"undefined"!=typeof t?(t<0&&(t=0),void this.techCall_("setCurrentTime",t)):(this.cache_.currentTime=this.techGet_("currentTime")||0,this.cache_.currentTime)},h.prototype.duration=function(t){if(void 0===t)return void 0!==this.cache_.duration?this.cache_.duration:NaN;(t=parseFloat(t))<0&&(t=1/0),t!==this.cache_.duration&&((this.cache_.duration=t)===1/0?this.addClass("vjs-live"):this.removeClass("vjs-live"),this.trigger("durationchange"))},h.prototype.remainingTime=function(){return this.duration()-this.currentTime()},h.prototype.remainingTimeDisplay=function(){return Math.floor(this.duration())-Math.floor(this.currentTime())},h.prototype.buffered=function(){var t=this.techGet_("buffered");return t&&t.length||(t=be(0,0)),t},h.prototype.bufferedPercent=function(){return Te(this.buffered(),this.duration())},h.prototype.bufferedEnd=function(){var t=this.buffered(),e=this.duration(),i=t.end(t.length-1);return e<i&&(i=e),i},h.prototype.volume=function(t){var e=void 0;return void 0!==t?(e=Math.max(0,Math.min(1,parseFloat(t))),this.cache_.volume=e,this.techCall_("setVolume",e),void(0<e&&this.lastVolume_(e))):(e=parseFloat(this.techGet_("volume")),isNaN(e)?1:e)},h.prototype.muted=function(t){if(void 0===t)return this.techGet_("muted")||!1;this.techCall_("setMuted",t)},h.prototype.defaultMuted=function(t){return void 0!==t?this.techCall_("setDefaultMuted",t):this.techGet_("defaultMuted")||!1},h.prototype.lastVolume_=function(t){if(void 0===t||0===t)return this.cache_.lastVolume;this.cache_.lastVolume=t},h.prototype.supportsFullScreen=function(){return this.techGet_("supportsFullScreen")||!1},h.prototype.isFullscreen=function(t){if(void 0===t)return!!this.isFullscreen_;this.isFullscreen_=!!t},h.prototype.requestFullscreen=function(){var i=Se;this.isFullscreen(!0),i.requestFullscreen?(vt(p,i.fullscreenchange,Ot(this,function t(e){this.isFullscreen(p[i.fullscreenElement]),!1===this.isFullscreen()&&_t(p,i.fullscreenchange,t),this.trigger("fullscreenchange")})),this.el_[i.requestFullscreen]()):this.tech_.supportsFullScreen()?this.techCall_("enterFullScreen"):(this.enterFullWindow(),this.trigger("fullscreenchange"))},h.prototype.exitFullscreen=function(){var t=Se;this.isFullscreen(!1),t.requestFullscreen?p[t.exitFullscreen]():this.tech_.supportsFullScreen()?this.techCall_("exitFullScreen"):(this.exitFullWindow(),this.trigger("fullscreenchange"))},h.prototype.enterFullWindow=function(){this.isFullWindow=!0,this.docOrigOverflow=p.documentElement.style.overflow,vt(p,"keydown",Ot(this,this.fullWindowOnEscKey)),p.documentElement.style.overflow="hidden",B(p.body,"vjs-full-window"),this.trigger("enterFullWindow")},h.prototype.fullWindowOnEscKey=function(t){27===t.keyCode&&(!0===this.isFullscreen()?this.exitFullscreen():this.exitFullWindow())},h.prototype.exitFullWindow=function(){this.isFullWindow=!1,_t(p,"keydown",this.fullWindowOnEscKey),p.documentElement.style.overflow=this.docOrigOverflow,j(p.body,"vjs-full-window"),this.trigger("exitFullWindow")},h.prototype.canPlayType=function(t){for(var e=void 0,i=0,n=this.options_.techOrder;i<n.length;i++){var r=n[i],a=Oi.getTech(r);if(a||(a=Xt.getComponent(r)),a){if(a.isSupported()&&(e=a.canPlayType(t)))return e}else f.error('The "'+r+'" tech is undefined. Skipped browser support check for that tech.')}return""},h.prototype.selectSource=function(t){var i,n=this,e=this.options_.techOrder.map(function(t){return[t,Oi.getTech(t)]}).filter(function(t){var e=t[0],i=t[1];return i?i.isSupported():(f.error('The "'+e+'" tech is undefined. Skipped browser support check for that tech.'),!1)}),r=function(t,i,n){var r=void 0;return t.some(function(e){return i.some(function(t){if(r=n(e,t))return!0})}),r},a=function(t,e){var i=t[0];if(t[1].canPlaySource(e,n.options_[i.toLowerCase()]))return{source:e,tech:i}};return(this.options_.sourceOrder?r(t,e,(i=a,function(t,e){return i(e,t)})):r(e,t,a))||!1},h.prototype.src=function(t){var r=this;if("undefined"==typeof t)return this.cache_.src||"";var a=function e(t){if(Array.isArray(t)){var i=[];t.forEach(function(t){t=e(t),Array.isArray(t)?i=i.concat(t):C(t)&&i.push(t)}),t=i}else t="string"==typeof t&&t.trim()?[Hi({src:t})]:C(t)&&"string"==typeof t.src&&t.src&&t.src.trim()?[Hi(t)]:[];return t}(t);a.length?(this.changingSrc_=!0,this.cache_.sources=a,this.updateSourceCaches_(a[0]),Di(this,a[0],function(t,e){var i,n;if(r.middleware_=e,r.cache_.sources=a,r.updateSourceCaches_(t),r.src_(t))return 1<a.length?r.src(a.slice(1)):(r.changingSrc_=!1,r.setTimeout(function(){this.error({code:4,message:this.localize(this.options_.notSupportedMessage)})},0),void r.triggerReady());i=e,n=r.tech_,i.forEach(function(t){return t.setTech&&t.setTech(n)})})):this.setTimeout(function(){this.error({code:4,message:this.localize(this.options_.notSupportedMessage)})},0)},h.prototype.src_=function(t){var e,i,n=this,r=this.selectSource([t]);return!r||(e=r.tech,i=this.techName_,Wt(e)!==Wt(i)?(this.changingSrc_=!0,this.loadTech_(r.tech,r.source),this.tech_.ready(function(){n.changingSrc_=!1})):this.ready(function(){this.tech_.constructor.prototype.hasOwnProperty("setSource")?this.techCall_("setSource",t):this.techCall_("src",t.src),this.changingSrc_=!1},!0),!1)},h.prototype.load=function(){this.techCall_("load")},h.prototype.reset=function(){this.tech_&&this.tech_.clearTracks("text"),this.loadTech_(this.options_.techOrder[0],null),this.techCall_("reset")},h.prototype.currentSources=function(){var t=this.currentSource(),e=[];return 0!==Object.keys(t).length&&e.push(t),this.cache_.sources||e},h.prototype.currentSource=function(){return this.cache_.source||{}},h.prototype.currentSrc=function(){return this.currentSource()&&this.currentSource().src||""},h.prototype.currentType=function(){return this.currentSource()&&this.currentSource().type||""},h.prototype.preload=function(t){return void 0!==t?(this.techCall_("setPreload",t),void(this.options_.preload=t)):this.techGet_("preload")},h.prototype.autoplay=function(t){if(void 0===t)return this.options_.autoplay||!1;var e=void 0;"string"==typeof t&&/(any|play|muted)/.test(t)?(this.options_.autoplay=t,this.manualAutoplay_(t),e=!1):this.options_.autoplay=!!t,e=e||this.options_.autoplay,this.tech_&&this.techCall_("setAutoplay",e)},h.prototype.playsinline=function(t){return void 0!==t?(this.techCall_("setPlaysinline",t),this.options_.playsinline=t,this):this.techGet_("playsinline")},h.prototype.loop=function(t){return void 0!==t?(this.techCall_("setLoop",t),void(this.options_.loop=t)):this.techGet_("loop")},h.prototype.poster=function(t){if(void 0===t)return this.poster_;t||(t=""),t!==this.poster_&&(this.poster_=t,this.techCall_("setPoster",t),this.isPosterFromTech_=!1,this.trigger("posterchange"))},h.prototype.handleTechPosterChange_=function(){if((!this.poster_||this.options_.techCanOverridePoster)&&this.tech_&&this.tech_.poster){var t=this.tech_.poster()||"";t!==this.poster_&&(this.poster_=t,this.isPosterFromTech_=!0,this.trigger("posterchange"))}},h.prototype.controls=function(t){if(void 0===t)return!!this.controls_;t=!!t,this.controls_!==t&&(this.controls_=t,this.usingNativeControls()&&this.techCall_("setControls",t),this.controls_?(this.removeClass("vjs-controls-disabled"),this.addClass("vjs-controls-enabled"),this.trigger("controlsenabled"),this.usingNativeControls()||this.addTechControlsListeners_()):(this.removeClass("vjs-controls-enabled"),this.addClass("vjs-controls-disabled"),this.trigger("controlsdisabled"),this.usingNativeControls()||this.removeTechControlsListeners_()))},h.prototype.usingNativeControls=function(t){if(void 0===t)return!!this.usingNativeControls_;t=!!t,this.usingNativeControls_!==t&&(this.usingNativeControls_=t,this.usingNativeControls_?(this.addClass("vjs-using-native-controls"),this.trigger("usingnativecontrols")):(this.removeClass("vjs-using-native-controls"),this.trigger("usingcustomcontrols")))},h.prototype.error=function(t){return void 0===t?this.error_||null:null===t?(this.error_=t,this.removeClass("vjs-error"),void(this.errorDisplay&&this.errorDisplay.close())):(this.error_=new Oe(t),this.addClass("vjs-error"),f.error("(CODE:"+this.error_.code+" "+Oe.errorTypes[this.error_.code]+")",this.error_.message,this.error_),void this.trigger("error"))},h.prototype.reportUserActivity=function(t){this.userActivity_=!0},h.prototype.userActive=function(t){if(void 0===t)return this.userActive_;if((t=!!t)!==this.userActive_){if(this.userActive_=t,this.userActive_)return this.userActivity_=!0,this.removeClass("vjs-user-inactive"),this.addClass("vjs-user-active"),void this.trigger("useractive");this.tech_&&this.tech_.one("mousemove",function(t){t.stopPropagation(),t.preventDefault()}),this.userActivity_=!1,this.removeClass("vjs-user-active"),this.addClass("vjs-user-inactive"),this.trigger("userinactive")}},h.prototype.listenForUserActivity_=function(){var e=void 0,i=void 0,n=void 0,r=Ot(this,this.reportUserActivity);this.on("mousedown",function(){r(),this.clearInterval(e),e=this.setInterval(r,250)}),this.on("mousemove",function(t){t.screenX===i&&t.screenY===n||(i=t.screenX,n=t.screenY,r())}),this.on("mouseup",function(t){r(),this.clearInterval(e)}),this.on("keydown",r),this.on("keyup",r);var a=void 0;this.setInterval(function(){if(this.userActivity_){this.userActivity_=!1,this.userActive(!0),this.clearTimeout(a);var t=this.options_.inactivityTimeout;t<=0||(a=this.setTimeout(function(){this.userActivity_||this.userActive(!1)},t))}},250)},h.prototype.playbackRate=function(t){if(void 0===t)return this.tech_&&this.tech_.featuresPlaybackRate?this.cache_.lastPlaybackRate||this.techGet_("playbackRate"):1;this.techCall_("setPlaybackRate",t)},h.prototype.defaultPlaybackRate=function(t){return void 0!==t?this.techCall_("setDefaultPlaybackRate",t):this.tech_&&this.tech_.featuresPlaybackRate?this.techGet_("defaultPlaybackRate"):1},h.prototype.isAudio=function(t){if(void 0===t)return!!this.isAudio_;this.isAudio_=!!t},h.prototype.addTextTrack=function(t,e,i){if(this.tech_)return this.tech_.addTextTrack(t,e,i)},h.prototype.addRemoteTextTrack=function(t,e){if(this.tech_)return this.tech_.addRemoteTextTrack(t,e)},h.prototype.removeRemoteTextTrack=function(){var t=(0<arguments.length&&void 0!==arguments[0]?arguments[0]:{}).track,e=void 0===t?arguments[0]:t;if(this.tech_)return this.tech_.removeRemoteTextTrack(e)},h.prototype.getVideoPlaybackQuality=function(){return this.techGet_("getVideoPlaybackQuality")},h.prototype.videoWidth=function(){return this.tech_&&this.tech_.videoWidth&&this.tech_.videoWidth()||0},h.prototype.videoHeight=function(){return this.tech_&&this.tech_.videoHeight&&this.tech_.videoHeight()||0},h.prototype.language=function(t){if(void 0===t)return this.language_;this.language_=String(t).toLowerCase()},h.prototype.languages=function(){return Gt(h.prototype.options_.languages,this.languages_)},h.prototype.toJSON=function(){var t=Gt(this.options_),e=t.tracks;t.tracks=[];for(var i=0;i<e.length;i++){var n=e[i];(n=Gt(n)).player=void 0,t.tracks[i]=n}return t},h.prototype.createModal=function(t,e){var i=this;(e=e||{}).content=t||"";var n=new Be(this,e);return this.addChild(n),n.on("dispose",function(){i.removeChild(n)}),n.open(),n},h.getTagSettings=function(t){var e={sources:[],tracks:[]},i=V(t),n=i["data-setup"];if(N(t,"vjs-fluid")&&(i.fluid=!0),null!==n){var r=Ue(n||"{}"),a=r[0],s=r[1];a&&f.error(a),k(i,s)}if(k(e,i),t.hasChildNodes())for(var o=t.childNodes,u=0,l=o.length;u<l;u++){var c=o[u],h=c.nodeName.toLowerCase();"source"===h?e.sources.push(V(c)):"track"===h&&e.tracks.push(V(c))}return e},h.prototype.flexNotSupported_=function(){var t=p.createElement("i");return!("flexBasis"in t.style||"webkitFlexBasis"in t.style||"mozFlexBasis"in t.style||"msFlexBasis"in t.style||"msFlexOrder"in t.style)},h}(Xt);Ai.names.forEach(function(t){var e=Ai[t];wr.prototype[e.getterName]=function(){return 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e,i=t.sps||[],n=t.pps||[],r=[],a=[];for(e=0;e<i.length;e++)r.push((65280&i[e].byteLength)>>>8),r.push(255&i[e].byteLength),r=r.concat(Array.prototype.slice.call(i[e]));for(e=0;e<n.length;e++)a.push((65280&n[e].byteLength)>>>8),a.push(255&n[e].byteLength),a=a.concat(Array.prototype.slice.call(n[e]));return Ea(Xa.avc1,new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,(65280&t.width)>>8,255&t.width,(65280&t.height)>>8,255&t.height,0,72,0,0,0,72,0,0,0,0,0,0,0,1,19,118,105,100,101,111,106,115,45,99,111,110,116,114,105,98,45,104,108,115,0,0,0,0,0,0,0,0,0,0,0,0,0,24,17,17]),Ea(Xa.avcC,new Uint8Array([1,t.profileIdc,t.profileCompatibility,t.levelIdc,255].concat([i.length]).concat(r).concat([n.length]).concat(a))),Ea(Xa.btrt,new Uint8Array([0,28,156,128,0,45,198,192,0,45,198,192])))},us=function(t){return Ea(Xa.mp4a,new 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e,i,n;if("sei_rbsp"===t.nalUnitType&&(e=Rs(t.escapedRBSP)).payloadType===js&&(i=Ms(e)))if(t.dts<this.latestDts_)this.ignoreNextEqualDts_=!0;else{if(t.dts===this.latestDts_&&this.ignoreNextEqualDts_)return this.numSameDts_--,void(this.numSameDts_||(this.ignoreNextEqualDts_=!1));n=Ns(t.pts,i),this.captionPackets_=this.captionPackets_.concat(n),this.latestDts_!==t.dts&&(this.numSameDts_=0),this.numSameDts_++,this.latestDts_=t.dts}},Fs.prototype.flush=function(){this.captionPackets_.length?(this.captionPackets_.forEach(function(t,e){t.presortIndex=e}),this.captionPackets_.sort(function(t,e){return t.pts===e.pts?t.presortIndex-e.presortIndex:t.pts-e.pts}),this.captionPackets_.forEach(function(t){t.type<2&&this.dispatchCea608Packet(t)},this),this.captionPackets_.length=0,this.ccStreams_.forEach(function(t){t.flush()},this)):this.ccStreams_.forEach(function(t){t.flush()},this)},Fs.prototype.reset=function(){this.latestDts_=null,this.ignoreNextEqualDts_=!1,this.numSameDts_=0,this.activeCea608Channel_=[null,null],this.ccStreams_.forEach(function(t){t.reset()})},Fs.prototype.dispatchCea608Packet=function(t){this.setsChannel1Active(t)?this.activeCea608Channel_[t.type]=0:this.setsChannel2Active(t)&&(this.activeCea608Channel_[t.type]=1),null!==this.activeCea608Channel_[t.type]&&this.ccStreams_[(t.type<<1)+this.activeCea608Channel_[t.type]].push(t)},Fs.prototype.setsChannel1Active=function(t){return 4096==(30720&t.ccData)},Fs.prototype.setsChannel2Active=function(t){return 6144==(30720&t.ccData)};var Hs={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,304:174,305:176,306:189,307:191,308:8482,309:162,310:163,311:9834,312:224,313:160,314:232,315:226,316:234,317:238,318:244,319:251,544:193,545:201,546:211,547:218,548:220,549:252,550:8216,551:161,552:42,553:39,554:8212,555:169,556:8480,557:8226,558:8220,559:8221,560:192,561:194,562:199,563:200,564:202,565:203,566:235,567:206,568:207,569:239,570:212,571:217,572:249,573:219,574:171,575:187,800:195,801:227,802:205,803:204,804:236,805:210,806:242,807:213,808:245,809:123,810:125,811:92,812:94,813:95,814:124,815:126,816:196,817:228,818:214,819:246,820:223,821:165,822:164,823:9474,824:197,825:229,826:216,827:248,828:9484,829:9488,830:9492,831:9496},Vs=function(t){return null===t?"":(t=Hs[t]||t,String.fromCharCode(t))},qs=[4352,4384,4608,4640,5376,5408,5632,5664,5888,5920,4096,4864,4896,5120,5152],zs=function(){for(var t=[],e=15;e--;)t.push("");return t},Ws=function t(e,i){t.prototype.init.call(this),this.field_=e||0,this.dataChannel_=i||0,this.name_="CC"+(1+(this.field_<<1|this.dataChannel_)),this.setConstants(),this.reset(),this.push=function(t){var e,i,n,r,a;if((e=32639&t.ccData)!==this.lastControlCode_){if(4096==(61440&e)?this.lastControlCode_=e:e!==this.PADDING_&&(this.lastControlCode_=null),n=e>>>8,r=255&e,e!==this.PADDING_)if(e===this.RESUME_CAPTION_LOADING_)this.mode_="popOn";else if(e===this.END_OF_CAPTION_)this.mode_="popOn",this.clearFormatting(t.pts),this.flushDisplayed(t.pts),i=this.displayed_,this.displayed_=this.nonDisplayed_,this.nonDisplayed_=i,this.startPts_=t.pts;else if(e===this.ROLL_UP_2_ROWS_)this.rollUpRows_=2,this.setRollUp(t.pts);else if(e===this.ROLL_UP_3_ROWS_)this.rollUpRows_=3,this.setRollUp(t.pts);else if(e===this.ROLL_UP_4_ROWS_)this.rollUpRows_=4,this.setRollUp(t.pts);else if(e===this.CARRIAGE_RETURN_)this.clearFormatting(t.pts),this.flushDisplayed(t.pts),this.shiftRowsUp_(),this.startPts_=t.pts;else if(e===this.BACKSPACE_)"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1);else if(e===this.ERASE_DISPLAYED_MEMORY_)this.flushDisplayed(t.pts),this.displayed_=zs();else if(e===this.ERASE_NON_DISPLAYED_MEMORY_)this.nonDisplayed_=zs();else if(e===this.RESUME_DIRECT_CAPTIONING_)"paintOn"!==this.mode_&&(this.flushDisplayed(t.pts),this.displayed_=zs()),this.mode_="paintOn",this.startPts_=t.pts;else if(this.isSpecialCharacter(n,r))a=Vs((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isExtCharacter(n,r))"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1),a=Vs((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isMidRowCode(n,r))this.clearFormatting(t.pts),this[this.mode_](t.pts," "),this.column_++,14==(14&r)&&this.addFormatting(t.pts,["i"]),1==(1&r)&&this.addFormatting(t.pts,["u"]);else if(this.isOffsetControlCode(n,r))this.column_+=3&r;else if(this.isPAC(n,r)){var s=qs.indexOf(7968&e);"rollUp"===this.mode_&&this.setRollUp(t.pts,s),s!==this.row_&&(this.clearFormatting(t.pts),this.row_=s),1&r&&-1===this.formatting_.indexOf("u")&&this.addFormatting(t.pts,["u"]),16==(16&e)&&(this.column_=4*((14&e)>>1)),this.isColorPAC(r)&&14==(14&r)&&this.addFormatting(t.pts,["i"])}else this.isNormalChar(n)&&(0===r&&(r=null),a=Vs(n),a+=Vs(r),this[this.mode_](t.pts,a),this.column_+=a.length)}else this.lastControlCode_=null}};Ws.prototype=new Es,Ws.prototype.flushDisplayed=function(t){var e=this.displayed_.map(function(t){return t.trim()}).join("\n").replace(/^\n+|\n+$/g,"");e.length&&this.trigger("data",{startPts:this.startPts_,endPts:t,text:e,stream:this.name_})},Ws.prototype.reset=function(){this.mode_="popOn",this.topRow_=0,this.startPts_=0,this.displayed_=zs(),this.nonDisplayed_=zs(),this.lastControlCode_=null,this.column_=0,this.row_=14,this.rollUpRows_=2,this.formatting_=[]},Ws.prototype.setConstants=function(){0===this.dataChannel_?(this.BASE_=16,this.EXT_=17,this.CONTROL_=(20|this.field_)<<8,this.OFFSET_=23):1===this.dataChannel_&&(this.BASE_=24,this.EXT_=25,this.CONTROL_=(28|this.field_)<<8,this.OFFSET_=31),this.PADDING_=0,this.RESUME_CAPTION_LOADING_=32|this.CONTROL_,this.END_OF_CAPTION_=47|this.CONTROL_,this.ROLL_UP_2_ROWS_=37|this.CONTROL_,this.ROLL_UP_3_ROWS_=38|this.CONTROL_,this.ROLL_UP_4_ROWS_=39|this.CONTROL_,this.CARRIAGE_RETURN_=45|this.CONTROL_,this.RESUME_DIRECT_CAPTIONING_=41|this.CONTROL_,this.BACKSPACE_=33|this.CONTROL_,this.ERASE_DISPLAYED_MEMORY_=44|this.CONTROL_,this.ERASE_NON_DISPLAYED_MEMORY_=46|this.CONTROL_},Ws.prototype.isSpecialCharacter=function(t,e){return t===this.EXT_&&48<=e&&e<=63},Ws.prototype.isExtCharacter=function(t,e){return(t===this.EXT_+1||t===this.EXT_+2)&&32<=e&&e<=63},Ws.prototype.isMidRowCode=function(t,e){return t===this.EXT_&&32<=e&&e<=47},Ws.prototype.isOffsetControlCode=function(t,e){return t===this.OFFSET_&&33<=e&&e<=35},Ws.prototype.isPAC=function(t,e){return t>=this.BASE_&&t<this.BASE_+8&&64<=e&&e<=127},Ws.prototype.isColorPAC=function(t){return 64<=t&&t<=79||96<=t&&t<=127},Ws.prototype.isNormalChar=function(t){return 32<=t&&t<=127},Ws.prototype.setRollUp=function(t,e){if("rollUp"!==this.mode_&&(this.row_=14,this.mode_="rollUp",this.flushDisplayed(t),this.nonDisplayed_=zs(),this.displayed_=zs()),void 0!==e&&e!==this.row_)for(var i=0;i<this.rollUpRows_;i++)this.displayed_[e-i]=this.displayed_[this.row_-i],this.displayed_[this.row_-i]="";void 0===e&&(e=this.row_),this.topRow_=e-this.rollUpRows_+1},Ws.prototype.addFormatting=function(t,e){this.formatting_=this.formatting_.concat(e);var i=e.reduce(function(t,e){return t+"<"+e+">"},"");this[this.mode_](t,i)},Ws.prototype.clearFormatting=function(t){if(this.formatting_.length){var e=this.formatting_.reverse().reduce(function(t,e){return t+"</"+e+">"},"");this.formatting_=[],this[this.mode_](t,e)}},Ws.prototype.popOn=function(t,e){var i=this.nonDisplayed_[this.row_];i+=e,this.nonDisplayed_[this.row_]=i},Ws.prototype.rollUp=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i},Ws.prototype.shiftRowsUp_=function(){var t;for(t=0;t<this.topRow_;t++)this.displayed_[t]="";for(t=this.row_+1;t<15;t++)this.displayed_[t]="";for(t=this.topRow_;t<this.row_;t++)this.displayed_[t]=this.displayed_[t+1];this.displayed_[this.row_]=""},Ws.prototype.paintOn=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i};var Gs={CaptionStream:Fs,Cea608Stream:Ws},Xs={H264_STREAM_TYPE:27,ADTS_STREAM_TYPE:15,METADATA_STREAM_TYPE:21},Ys=function(t,e){var i=1;for(e<t&&(i=-1);4294967296<Math.abs(e-t);)t+=8589934592*i;return t},$s=function t(e){var i,n;t.prototype.init.call(this),this.type_=e,this.push=function(t){t.type===this.type_&&(void 0===n&&(n=t.dts),t.dts=Ys(t.dts,n),t.pts=Ys(t.pts,n),i=t.dts,this.trigger("data",t))},this.flush=function(){n=i,this.trigger("done")},this.discontinuity=function(){i=n=void 0}};$s.prototype=new Es;var Ks,Js=$s,Qs=Ys,Zs=function(t,e,i){var n,r="";for(n=e;n<i;n++)r+="%"+("00"+t[n].toString(16)).slice(-2);return r},to=function(t,e,i){return decodeURIComponent(Zs(t,e,i))},eo=function(t){return t[0]<<21|t[1]<<14|t[2]<<7|t[3]},io={TXXX:function(t){var e;if(3===t.data[0]){for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=to(t.data,1,e),t.value=to(t.data,e+1,t.data.length).replace(/\0*$/,"");break}t.data=t.value}},WXXX:function(t){var e;if(3===t.data[0])for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=to(t.data,1,e),t.url=to(t.data,e+1,t.data.length);break}},PRIV:function(t){var e,i;for(e=0;e<t.data.length;e++)if(0===t.data[e]){t.owner=(i=t.data,unescape(Zs(i,0,e)));break}t.privateData=t.data.subarray(e+1),t.data=t.privateData}};(Ks=function(t){var e,u={debug:!(!t||!t.debug),descriptor:t&&t.descriptor},l=0,c=[],h=0;if(Ks.prototype.init.call(this),this.dispatchType=Xs.METADATA_STREAM_TYPE.toString(16),u.descriptor)for(e=0;e<u.descriptor.length;e++)this.dispatchType+=("00"+u.descriptor[e].toString(16)).slice(-2);this.push=function(t){var e,i,n,r,a;if("timed-metadata"===t.type)if(t.dataAlignmentIndicator&&(h=0,c.length=0),0===c.length&&(t.data.length<10||t.data[0]!=="I".charCodeAt(0)||t.data[1]!=="D".charCodeAt(0)||t.data[2]!=="3".charCodeAt(0)))u.debug;else if(c.push(t),h+=t.data.byteLength,1===c.length&&(l=eo(t.data.subarray(6,10)),l+=10),!(h<l)){for(e={data:new Uint8Array(l),frames:[],pts:c[0].pts,dts:c[0].dts},a=0;a<l;)e.data.set(c[0].data.subarray(0,l-a),a),a+=c[0].data.byteLength,h-=c[0].data.byteLength,c.shift();i=10,64&e.data[5]&&(i+=4,i+=eo(e.data.subarray(10,14)),l-=eo(e.data.subarray(16,20)));do{if((n=eo(e.data.subarray(i+4,i+8)))<1)return;if((r={id:String.fromCharCode(e.data[i],e.data[i+1],e.data[i+2],e.data[i+3]),data:e.data.subarray(i+10,i+n+10)}).key=r.id,io[r.id]&&(io[r.id](r),"com.apple.streaming.transportStreamTimestamp"===r.owner)){var s=r.data,o=(1&s[3])<<30|s[4]<<22|s[5]<<14|s[6]<<6|s[7]>>>2;o*=4,o+=3&s[7],r.timeStamp=o,void 0===e.pts&&void 0===e.dts&&(e.pts=r.timeStamp,e.dts=r.timeStamp),this.trigger("timestamp",r)}e.frames.push(r),i+=10,i+=n}while(i<l);this.trigger("data",e)}}}).prototype=new Es;var no,ro,ao,so=Ks,oo=Js;(no=function(){var r=new Uint8Array(188),a=0;no.prototype.init.call(this),this.push=function(t){var e,i=0,n=188;for(a?((e=new Uint8Array(t.byteLength+a)).set(r.subarray(0,a)),e.set(t,a),a=0):e=t;n<e.byteLength;)71!==e[i]||71!==e[n]?(i++,n++):(this.trigger("data",e.subarray(i,n)),i+=188,n+=188);i<e.byteLength&&(r.set(e.subarray(i),0),a=e.byteLength-i)},this.flush=function(){188===a&&71===r[0]&&(this.trigger("data",r),a=0),this.trigger("done")}}).prototype=new Es,(ro=function(){var n,r,a,s;ro.prototype.init.call(this),(s=this).packetsWaitingForPmt=[],this.programMapTable=void 0,n=function(t,e){var i=0;e.payloadUnitStartIndicator&&(i+=t[i]+1),"pat"===e.type?r(t.subarray(i),e):a(t.subarray(i),e)},r=function(t,e){e.section_number=t[7],e.last_section_number=t[8],s.pmtPid=(31&t[10])<<8|t[11],e.pmtPid=s.pmtPid},a=function(t,e){var i,n;if(1&t[5]){for(s.programMapTable={video:null,audio:null,"timed-metadata":{}},i=3+((15&t[1])<<8|t[2])-4,n=12+((15&t[10])<<8|t[11]);n<i;){var r=t[n],a=(31&t[n+1])<<8|t[n+2];r===Xs.H264_STREAM_TYPE&&null===s.programMapTable.video?s.programMapTable.video=a:r===Xs.ADTS_STREAM_TYPE&&null===s.programMapTable.audio?s.programMapTable.audio=a:r===Xs.METADATA_STREAM_TYPE&&(s.programMapTable["timed-metadata"][a]=r),n+=5+((15&t[n+3])<<8|t[n+4])}e.programMapTable=s.programMapTable}},this.push=function(t){var e={},i=4;if(e.payloadUnitStartIndicator=!!(64&t[1]),e.pid=31&t[1],e.pid<<=8,e.pid|=t[2],1<(48&t[3])>>>4&&(i+=t[i]+1),0===e.pid)e.type="pat",n(t.subarray(i),e),this.trigger("data",e);else if(e.pid===this.pmtPid)for(e.type="pmt",n(t.subarray(i),e),this.trigger("data",e);this.packetsWaitingForPmt.length;)this.processPes_.apply(this,this.packetsWaitingForPmt.shift());else void 0===this.programMapTable?this.packetsWaitingForPmt.push([t,i,e]):this.processPes_(t,i,e)},this.processPes_=function(t,e,i){i.pid===this.programMapTable.video?i.streamType=Xs.H264_STREAM_TYPE:i.pid===this.programMapTable.audio?i.streamType=Xs.ADTS_STREAM_TYPE:i.streamType=this.programMapTable["timed-metadata"][i.pid],i.type="pes",i.data=t.subarray(e),this.trigger("data",i)}}).prototype=new Es,ro.STREAM_TYPES={h264:27,adts:15},(ao=function(){var d=this,n={data:[],size:0},r={data:[],size:0},a={data:[],size:0},s=function(t,e,i){var n,r,a=new Uint8Array(t.size),s={type:e},o=0,u=0;if(t.data.length&&!(t.size<9)){for(s.trackId=t.data[0].pid,o=0;o<t.data.length;o++)r=t.data[o],a.set(r.data,u),u+=r.data.byteLength;var l,c,h;l=a,(c=s).packetLength=6+(l[4]<<8|l[5]),c.dataAlignmentIndicator=0!=(4&l[6]),192&(h=l[7])&&(c.pts=(14&l[9])<<27|(255&l[10])<<20|(254&l[11])<<12|(255&l[12])<<5|(254&l[13])>>>3,c.pts*=4,c.pts+=(6&l[13])>>>1,c.dts=c.pts,64&h&&(c.dts=(14&l[14])<<27|(255&l[15])<<20|(254&l[16])<<12|(255&l[17])<<5|(254&l[18])>>>3,c.dts*=4,c.dts+=(6&l[18])>>>1)),c.data=l.subarray(9+l[8]),n="video"===e||s.packetLength<=t.size,(i||n)&&(t.size=0,t.data.length=0),n&&d.trigger("data",s)}};ao.prototype.init.call(this),this.push=function(i){({pat:function(){},pes:function(){var t,e;switch(i.streamType){case Xs.H264_STREAM_TYPE:case Xs.H264_STREAM_TYPE:t=n,e="video";break;case Xs.ADTS_STREAM_TYPE:t=r,e="audio";break;case Xs.METADATA_STREAM_TYPE:t=a,e="timed-metadata";break;default:return}i.payloadUnitStartIndicator&&s(t,e,!0),t.data.push(i),t.size+=i.data.byteLength},pmt:function(){var t={type:"metadata",tracks:[]},e=i.programMapTable;null!==e.video&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.video,codec:"avc",type:"video"}),null!==e.audio&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.audio,codec:"adts",type:"audio"}),d.trigger("data",t)}})[i.type]()},this.flush=function(){s(n,"video"),s(r,"audio"),s(a,"timed-metadata"),this.trigger("done")}}).prototype=new Es;var uo={PAT_PID:0,MP2T_PACKET_LENGTH:188,TransportPacketStream:no,TransportParseStream:ro,ElementaryStream:ao,TimestampRolloverStream:oo,CaptionStream:Gs.CaptionStream,Cea608Stream:Gs.Cea608Stream,MetadataStream:so};for(var lo in Xs)Xs.hasOwnProperty(lo)&&(uo[lo]=Xs[lo]);var co,ho=uo,po=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];(co=function(){var l;co.prototype.init.call(this),this.push=function(t){var e,i,n,r,a,s,o=0,u=0;if("audio"===t.type)for(l?(r=l,(l=new Uint8Array(r.byteLength+t.data.byteLength)).set(r),l.set(t.data,r.byteLength)):l=t.data;o+5<l.length;)if(255===l[o]&&240==(246&l[o+1])){if(i=2*(1&~l[o+1]),e=(3&l[o+3])<<11|l[o+4]<<3|(224&l[o+5])>>5,s=9e4*(a=1024*(1+(3&l[o+6])))/po[(60&l[o+2])>>>2],n=o+e,l.byteLength<n)return;if(this.trigger("data",{pts:t.pts+u*s,dts:t.dts+u*s,sampleCount:a,audioobjecttype:1+(l[o+2]>>>6&3),channelcount:(1&l[o+2])<<2|(192&l[o+3])>>>6,samplerate:po[(60&l[o+2])>>>2],samplingfrequencyindex:(60&l[o+2])>>>2,samplesize:16,data:l.subarray(o+7+i,n)}),l.byteLength===n)return void(l=void 0);u++,l=l.subarray(n)}else o++},this.flush=function(){this.trigger("done")}}).prototype=new Es;var fo,mo,go,yo=co,vo=function(n){var r=n.byteLength,a=0,s=0;this.length=function(){return 8*r},this.bitsAvailable=function(){return 8*r+s},this.loadWord=function(){var t=n.byteLength-r,e=new Uint8Array(4),i=Math.min(4,r);if(0===i)throw new Error("no bytes available");e.set(n.subarray(t,t+i)),a=new DataView(e.buffer).getUint32(0),s=8*i,r-=i},this.skipBits=function(t){var e;t<s||(t-=s,t-=8*(e=Math.floor(t/8)),r-=e,this.loadWord()),a<<=t,s-=t},this.readBits=function(t){var e=Math.min(s,t),i=a>>>32-e;return 0<(s-=e)?a<<=e:0<r&&this.loadWord(),0<(e=t-e)?i<<e|this.readBits(e):i},this.skipLeadingZeros=function(){var t;for(t=0;t<s;++t)if(0!=(a&2147483648>>>t))return a<<=t,s-=t,t;return this.loadWord(),t+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var t=this.skipLeadingZeros();return this.readBits(t+1)-1},this.readExpGolomb=function(){var t=this.readUnsignedExpGolomb();return 1&t?1+t>>>1:-1*(t>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUnsignedByte=function(){return this.readBits(8)},this.loadWord()};(mo=function(){var i,n,r=0;mo.prototype.init.call(this),this.push=function(t){var e;for(n?((e=new Uint8Array(n.byteLength+t.data.byteLength)).set(n),e.set(t.data,n.byteLength),n=e):n=t.data;r<n.byteLength-3;r++)if(1===n[r+2]){i=r+5;break}for(;i<n.byteLength;)switch(n[i]){case 0:if(0!==n[i-1]){i+=2;break}if(0!==n[i-2]){i++;break}for(r+3!==i-2&&this.trigger("data",n.subarray(r+3,i-2));1!==n[++i]&&i<n.length;);r=i-2,i+=3;break;case 1:if(0!==n[i-1]||0!==n[i-2]){i+=3;break}this.trigger("data",n.subarray(r+3,i-2)),r=i-2,i+=3;break;default:i+=3}n=n.subarray(r),i-=r,r=0},this.flush=function(){n&&3<n.byteLength&&this.trigger("data",n.subarray(r+3)),n=null,r=0,this.trigger("done")}}).prototype=new Es,go={100:!0,110:!0,122:!0,244:!0,44:!0,83:!0,86:!0,118:!0,128:!0,138:!0,139:!0,134:!0},(fo=function(){var i,n,r,a,s,o,_,e=new mo;fo.prototype.init.call(this),(i=this).push=function(t){"video"===t.type&&(n=t.trackId,r=t.pts,a=t.dts,e.push(t))},e.on("data",function(t){var e={trackId:n,pts:r,dts:a,data:t};switch(31&t[0]){case 5:e.nalUnitType="slice_layer_without_partitioning_rbsp_idr";break;case 6:e.nalUnitType="sei_rbsp",e.escapedRBSP=s(t.subarray(1));break;case 7:e.nalUnitType="seq_parameter_set_rbsp",e.escapedRBSP=s(t.subarray(1)),e.config=o(e.escapedRBSP);break;case 8:e.nalUnitType="pic_parameter_set_rbsp";break;case 9:e.nalUnitType="access_unit_delimiter_rbsp"}i.trigger("data",e)}),e.on("done",function(){i.trigger("done")}),this.flush=function(){e.flush()},_=function(t,e){var i,n=8,r=8;for(i=0;i<t;i++)0!==r&&(r=(n+e.readExpGolomb()+256)%256),n=0===r?n:r},s=function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},o=function(t){var e,i,n,r,a,s,o,u,l,c,h,d,p,f=0,m=0,g=0,y=0,v=1;if(i=(e=new vo(t)).readUnsignedByte(),r=e.readUnsignedByte(),n=e.readUnsignedByte(),e.skipUnsignedExpGolomb(),go[i]&&(3===(a=e.readUnsignedExpGolomb())&&e.skipBits(1),e.skipUnsignedExpGolomb(),e.skipUnsignedExpGolomb(),e.skipBits(1),e.readBoolean()))for(h=3!==a?8:12,p=0;p<h;p++)e.readBoolean()&&_(p<6?16:64,e);if(e.skipUnsignedExpGolomb(),0===(s=e.readUnsignedExpGolomb()))e.readUnsignedExpGolomb();else if(1===s)for(e.skipBits(1),e.skipExpGolomb(),e.skipExpGolomb(),o=e.readUnsignedExpGolomb(),p=0;p<o;p++)e.skipExpGolomb();if(e.skipUnsignedExpGolomb(),e.skipBits(1),u=e.readUnsignedExpGolomb(),l=e.readUnsignedExpGolomb(),0===(c=e.readBits(1))&&e.skipBits(1),e.skipBits(1),e.readBoolean()&&(f=e.readUnsignedExpGolomb(),m=e.readUnsignedExpGolomb(),g=e.readUnsignedExpGolomb(),y=e.readUnsignedExpGolomb()),e.readBoolean()&&e.readBoolean()){switch(e.readUnsignedByte()){case 1:d=[1,1];break;case 2:d=[12,11];break;case 3:d=[10,11];break;case 4:d=[16,11];break;case 5:d=[40,33];break;case 6:d=[24,11];break;case 7:d=[20,11];break;case 8:d=[32,11];break;case 9:d=[80,33];break;case 10:d=[18,11];break;case 11:d=[15,11];break;case 12:d=[64,33];break;case 13:d=[160,99];break;case 14:d=[4,3];break;case 15:d=[3,2];break;case 16:d=[2,1];break;case 255:d=[e.readUnsignedByte()<<8|e.readUnsignedByte(),e.readUnsignedByte()<<8|e.readUnsignedByte()]}d&&(v=d[0]/d[1])}return{profileIdc:i,levelIdc:n,profileCompatibility:r,width:Math.ceil((16*(u+1)-2*f-2*m)*v),height:(2-c)*(l+1)*16-2*g-2*y}}}).prototype=new Es;var _o,bo={H264Stream:fo,NalByteStream:mo};(_o=function(){var o=new Uint8Array,u=0;_o.prototype.init.call(this),this.setTimestamp=function(t){u=t},this.parseId3TagSize=function(t,e){var i=t[e+6]<<21|t[e+7]<<14|t[e+8]<<7|t[e+9];return(16&t[e+5])>>4?i+20:i+10},this.parseAdtsSize=function(t,e){var i=(224&t[e+5])>>5,n=t[e+4]<<3;return 6144&t[e+3]|n|i},this.push=function(t){var e,i,n,r,a=0,s=0;for(o.length?(r=o.length,(o=new Uint8Array(t.byteLength+r)).set(o.subarray(0,r)),o.set(t,r)):o=t;3<=o.length-s;)if(o[s]!=="I".charCodeAt(0)||o[s+1]!=="D".charCodeAt(0)||o[s+2]!=="3".charCodeAt(0))if(!0&o[s]&&240==(240&o[s+1])){if(o.length-s<7)break;if((a=this.parseAdtsSize(o,s))>o.length)break;n={type:"audio",data:o.subarray(s,s+a),pts:u,dts:u},this.trigger("data",n),s+=a}else s++;else{if(o.length-s<10)break;if((a=this.parseId3TagSize(o,s))>o.length)break;i={type:"timed-metadata",data:o.subarray(s,s+a)},this.trigger("data",i),s+=a}e=o.length-s,o=0<e?o.subarray(s):new Uint8Array}}).prototype=new Es;var To,So,ko,Co,wo,Eo,Ao,Lo,Oo,Po,Uo,Io,Do=_o,xo=[33,16,5,32,164,27],Ro=[33,65,108,84,1,2,4,8,168,2,4,8,17,191,252],Mo=function(t){for(var e=[];t--;)e.push(0);return e},No={96000:[xo,[227,64],Mo(154),[56]],88200:[xo,[231],Mo(170),[56]],64000:[xo,[248,192],Mo(240),[56]],48000:[xo,[255,192],Mo(268),[55,148,128],Mo(54),[112]],44100:[xo,[255,192],Mo(268),[55,163,128],Mo(84),[112]],32000:[xo,[255,192],Mo(268),[55,234],Mo(226),[112]],24000:[xo,[255,192],Mo(268),[55,255,128],Mo(268),[111,112],Mo(126),[224]],16000:[xo,[255,192],Mo(268),[55,255,128],Mo(268),[111,255],Mo(269),[223,108],Mo(195),[1,192]],12000:[Ro,Mo(268),[3,127,248],Mo(268),[6,255,240],Mo(268),[13,255,224],Mo(268),[27,253,128],Mo(259),[56]],11025:[Ro,Mo(268),[3,127,248],Mo(268),[6,255,240],Mo(268),[13,255,224],Mo(268),[27,255,192],Mo(268),[55,175,128],Mo(108),[112]],8000:[Ro,Mo(268),[3,121,16],Mo(47),[7]]},Bo=(To=No,Object.keys(To).reduce(function(t,e){return t[e]=new Uint8Array(To[e].reduce(function(t,e){return t.concat(e)},[])),t},{})),jo=(So=function(t){return 9e4*t},ko=function(t,e){return t*e},Co=function(t){return t/9e4},wo=function(t,e){return t/e},function(t,e){return So(wo(t,e))}),Fo=function(t,e){return ko(Co(t),e)},Ho=bo.H264Stream,Vo=["audioobjecttype","channelcount","samplerate","samplingfrequencyindex","samplesize"],qo=["width","height","profileIdc","levelIdc","profileCompatibility"];Po=function(t){return t[0]==="I".charCodeAt(0)&&t[1]==="D".charCodeAt(0)&&t[2]==="3".charCodeAt(0)},Uo=function(t,e){var i;if(t.length!==e.length)return!1;for(i=0;i<t.length;i++)if(t[i]!==e[i])return!1;return!0},Io=function(t){var e,i=0;for(e=0;e<t.length;e++)i+=t[e].data.byteLength;return i},(Ao=function(r,a){var s=[],o=0,e=0,l=0,c=1/0;a=a||{},Ao.prototype.init.call(this),this.push=function(e){xs(r,e),r&&Vo.forEach(function(t){r[t]=e[t]}),s.push(e)},this.setEarliestDts=function(t){e=t-r.timelineStartInfo.baseMediaDecodeTime},this.setVideoBaseMediaDecodeTime=function(t){c=t},this.setAudioAppendStart=function(t){l=t},this.flush=function(){var t,e,i,n;0!==s.length&&(t=this.trimAdtsFramesByEarliestDts_(s),r.baseMediaDecodeTime=Ds(r,a.keepOriginalTimestamps),this.prefixWithSilence_(r,t),r.samples=this.generateSampleTable_(t),i=Cs.mdat(this.concatenateFrameData_(t)),s=[],e=Cs.moof(o,[r]),n=new Uint8Array(e.byteLength+i.byteLength),o++,n.set(e),n.set(i,e.byteLength),Is(r),this.trigger("data",{track:r,boxes:n})),this.trigger("done","AudioSegmentStream")},this.prefixWithSilence_=function(t,e){var i,n,r,a,s=0,o=0,u=0;if(e.length&&(i=jo(t.baseMediaDecodeTime,t.samplerate),n=Math.ceil(9e4/(t.samplerate/1024)),l&&c&&(s=i-Math.max(l,c),u=(o=Math.floor(s/n))*n),!(o<1||45e3<u))){for((r=Bo[t.samplerate])||(r=e[0].data),a=0;a<o;a++)e.splice(a,0,{data:r});t.baseMediaDecodeTime-=Math.floor(Fo(u,t.samplerate))}},this.trimAdtsFramesByEarliestDts_=function(t){return r.minSegmentDts>=e?t:(r.minSegmentDts=1/0,t.filter(function(t){return t.dts>=e&&(r.minSegmentDts=Math.min(r.minSegmentDts,t.dts),r.minSegmentPts=r.minSegmentDts,!0)}))},this.generateSampleTable_=function(t){var e,i,n=[];for(e=0;e<t.length;e++)i=t[e],n.push({size:i.data.byteLength,duration:1024});return n},this.concatenateFrameData_=function(t){var e,i,n=0,r=new Uint8Array(Io(t));for(e=0;e<t.length;e++)i=t[e],r.set(i.data,n),n+=i.data.byteLength;return r}}).prototype=new Es,(Eo=function(o,u){var e,i,l=0,c=[],h=[];u=u||{},Eo.prototype.init.call(this),delete o.minPTS,this.gopCache_=[],this.push=function(t){xs(o,t),"seq_parameter_set_rbsp"!==t.nalUnitType||e||(e=t.config,o.sps=[t.data],qo.forEach(function(t){o[t]=e[t]},this)),"pic_parameter_set_rbsp"!==t.nalUnitType||i||(i=t.data,o.pps=[t.data]),c.push(t)},this.flush=function(){for(var t,e,i,n,r,a;c.length&&"access_unit_delimiter_rbsp"!==c[0].nalUnitType;)c.shift();if(0===c.length)return this.resetStream_(),void this.trigger("done","VideoSegmentStream");if(t=As(c),(i=Ls(t))[0][0].keyFrame||((e=this.getGopForFusion_(c[0],o))?(i.unshift(e),i.byteLength+=e.byteLength,i.nalCount+=e.nalCount,i.pts=e.pts,i.dts=e.dts,i.duration+=e.duration):i=Os(i)),h.length){var s;if(!(s=u.alignGopsAtEnd?this.alignGopsAtEnd_(i):this.alignGopsAtStart_(i)))return this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.resetStream_(),void this.trigger("done","VideoSegmentStream");Is(o),i=s}xs(o,i),o.samples=Ps(i),r=Cs.mdat(Us(i)),o.baseMediaDecodeTime=Ds(o,u.keepOriginalTimestamps),this.trigger("processedGopsInfo",i.map(function(t){return{pts:t.pts,dts:t.dts,byteLength:t.byteLength}})),this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.trigger("baseMediaDecodeTime",o.baseMediaDecodeTime),this.trigger("timelineStartInfo",o.timelineStartInfo),n=Cs.moof(l,[o]),a=new Uint8Array(n.byteLength+r.byteLength),l++,a.set(n),a.set(r,n.byteLength),this.trigger("data",{track:o,boxes:a}),this.resetStream_(),this.trigger("done","VideoSegmentStream")},this.resetStream_=function(){Is(o),i=e=void 0},this.getGopForFusion_=function(t){var e,i,n,r,a,s=1/0;for(a=0;a<this.gopCache_.length;a++)n=(r=this.gopCache_[a]).gop,o.pps&&Uo(o.pps[0],r.pps[0])&&o.sps&&Uo(o.sps[0],r.sps[0])&&(n.dts<o.timelineStartInfo.dts||-1e4<=(e=t.dts-n.dts-n.duration)&&e<=45e3&&(!i||e<s)&&(i=r,s=e));return i?i.gop:null},this.alignGopsAtStart_=function(t){var e,i,n,r,a,s,o,u;for(a=t.byteLength,s=t.nalCount,o=t.duration,e=i=0;e<h.length&&i<t.length&&(n=h[e],r=t[i],n.pts!==r.pts);)r.pts>n.pts?e++:(i++,a-=r.byteLength,s-=r.nalCount,o-=r.duration);return 0===i?t:i===t.length?null:((u=t.slice(i)).byteLength=a,u.duration=o,u.nalCount=s,u.pts=u[0].pts,u.dts=u[0].dts,u)},this.alignGopsAtEnd_=function(t){var e,i,n,r,a,s,o;for(e=h.length-1,i=t.length-1,a=null,s=!1;0<=e&&0<=i;){if(n=h[e],r=t[i],n.pts===r.pts){s=!0;break}n.pts>r.pts?e--:(e===h.length-1&&(a=i),i--)}if(!s&&null===a)return null;if(0===(o=s?i:a))return t;var u=t.slice(o),l=u.reduce(function(t,e){return t.byteLength+=e.byteLength,t.duration+=e.duration,t.nalCount+=e.nalCount,t},{byteLength:0,duration:0,nalCount:0});return u.byteLength=l.byteLength,u.duration=l.duration,u.nalCount=l.nalCount,u.pts=u[0].pts,u.dts=u[0].dts,u},this.alignGopsWith=function(t){h=t}}).prototype=new Es,(Oo=function(t,e){this.numberOfTracks=0,this.metadataStream=e,"undefined"!=typeof t.remux?this.remuxTracks=!!t.remux:this.remuxTracks=!0,this.pendingTracks=[],this.videoTrack=null,this.pendingBoxes=[],this.pendingCaptions=[],this.pendingMetadata=[],this.pendingBytes=0,this.emittedTracks=0,Oo.prototype.init.call(this),this.push=function(t){return t.text?this.pendingCaptions.push(t):t.frames?this.pendingMetadata.push(t):(this.pendingTracks.push(t.track),this.pendingBoxes.push(t.boxes),this.pendingBytes+=t.boxes.byteLength,"video"===t.track.type&&(this.videoTrack=t.track),void("audio"===t.track.type&&(this.audioTrack=t.track)))}}).prototype=new Es,Oo.prototype.flush=function(t){var e,i,n,r,a=0,s={captions:[],captionStreams:{},metadata:[],info:{}},o=0;if(this.pendingTracks.length<this.numberOfTracks){if("VideoSegmentStream"!==t&&"AudioSegmentStream"!==t)return;if(this.remuxTracks)return;if(0===this.pendingTracks.length)return this.emittedTracks++,void(this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0))}for(this.videoTrack?(o=this.videoTrack.timelineStartInfo.pts,qo.forEach(function(t){s.info[t]=this.videoTrack[t]},this)):this.audioTrack&&(o=this.audioTrack.timelineStartInfo.pts,Vo.forEach(function(t){s.info[t]=this.audioTrack[t]},this)),1===this.pendingTracks.length?s.type=this.pendingTracks[0].type:s.type="combined",this.emittedTracks+=this.pendingTracks.length,n=Cs.initSegment(this.pendingTracks),s.initSegment=new Uint8Array(n.byteLength),s.initSegment.set(n),s.data=new Uint8Array(this.pendingBytes),r=0;r<this.pendingBoxes.length;r++)s.data.set(this.pendingBoxes[r],a),a+=this.pendingBoxes[r].byteLength;for(r=0;r<this.pendingCaptions.length;r++)(e=this.pendingCaptions[r]).startTime=e.startPts-o,e.startTime/=9e4,e.endTime=e.endPts-o,e.endTime/=9e4,s.captionStreams[e.stream]=!0,s.captions.push(e);for(r=0;r<this.pendingMetadata.length;r++)(i=this.pendingMetadata[r]).cueTime=i.pts-o,i.cueTime/=9e4,s.metadata.push(i);s.metadata.dispatchType=this.metadataStream.dispatchType,this.pendingTracks.length=0,this.videoTrack=null,this.pendingBoxes.length=0,this.pendingCaptions.length=0,this.pendingBytes=0,this.pendingMetadata.length=0,this.trigger("data",s),this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0)},(Lo=function(n){var r,a,s=this,i=!0;Lo.prototype.init.call(this),n=n||{},this.baseMediaDecodeTime=n.baseMediaDecodeTime||0,this.transmuxPipeline_={},this.setupAacPipeline=function(){var e={};(this.transmuxPipeline_=e).type="aac",e.metadataStream=new ho.MetadataStream,e.aacStream=new Do,e.audioTimestampRolloverStream=new ho.TimestampRolloverStream("audio"),e.timedMetadataTimestampRolloverStream=new ho.TimestampRolloverStream("timed-metadata"),e.adtsStream=new yo,e.coalesceStream=new Oo(n,e.metadataStream),e.headOfPipeline=e.aacStream,e.aacStream.pipe(e.audioTimestampRolloverStream).pipe(e.adtsStream),e.aacStream.pipe(e.timedMetadataTimestampRolloverStream).pipe(e.metadataStream).pipe(e.coalesceStream),e.metadataStream.on("timestamp",function(t){e.aacStream.setTimestamp(t.timeStamp)}),e.aacStream.on("data",function(t){"timed-metadata"!==t.type||e.audioSegmentStream||(a=a||{timelineStartInfo:{baseMediaDecodeTime:s.baseMediaDecodeTime},codec:"adts",type:"audio"},e.coalesceStream.numberOfTracks++,e.audioSegmentStream=new Ao(a,n),e.adtsStream.pipe(e.audioSegmentStream).pipe(e.coalesceStream))}),e.coalesceStream.on("data",this.trigger.bind(this,"data")),e.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setupTsPipeline=function(){var i={};(this.transmuxPipeline_=i).type="ts",i.metadataStream=new ho.MetadataStream,i.packetStream=new ho.TransportPacketStream,i.parseStream=new ho.TransportParseStream,i.elementaryStream=new ho.ElementaryStream,i.videoTimestampRolloverStream=new ho.TimestampRolloverStream("video"),i.audioTimestampRolloverStream=new ho.TimestampRolloverStream("audio"),i.timedMetadataTimestampRolloverStream=new ho.TimestampRolloverStream("timed-metadata"),i.adtsStream=new yo,i.h264Stream=new Ho,i.captionStream=new ho.CaptionStream,i.coalesceStream=new Oo(n,i.metadataStream),i.headOfPipeline=i.packetStream,i.packetStream.pipe(i.parseStream).pipe(i.elementaryStream),i.elementaryStream.pipe(i.videoTimestampRolloverStream).pipe(i.h264Stream),i.elementaryStream.pipe(i.audioTimestampRolloverStream).pipe(i.adtsStream),i.elementaryStream.pipe(i.timedMetadataTimestampRolloverStream).pipe(i.metadataStream).pipe(i.coalesceStream),i.h264Stream.pipe(i.captionStream).pipe(i.coalesceStream),i.elementaryStream.on("data",function(t){var e;if("metadata"===t.type){for(e=t.tracks.length;e--;)r||"video"!==t.tracks[e].type?a||"audio"!==t.tracks[e].type||((a=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime):(r=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime;r&&!i.videoSegmentStream&&(i.coalesceStream.numberOfTracks++,i.videoSegmentStream=new Eo(r,n),i.videoSegmentStream.on("timelineStartInfo",function(t){a&&(a.timelineStartInfo=t,i.audioSegmentStream.setEarliestDts(t.dts))}),i.videoSegmentStream.on("processedGopsInfo",s.trigger.bind(s,"gopInfo")),i.videoSegmentStream.on("baseMediaDecodeTime",function(t){a&&i.audioSegmentStream.setVideoBaseMediaDecodeTime(t)}),i.h264Stream.pipe(i.videoSegmentStream).pipe(i.coalesceStream)),a&&!i.audioSegmentStream&&(i.coalesceStream.numberOfTracks++,i.audioSegmentStream=new Ao(a,n),i.adtsStream.pipe(i.audioSegmentStream).pipe(i.coalesceStream))}}),i.coalesceStream.on("data",this.trigger.bind(this,"data")),i.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setBaseMediaDecodeTime=function(t){var e=this.transmuxPipeline_;this.baseMediaDecodeTime=t,a&&(a.timelineStartInfo.dts=void 0,a.timelineStartInfo.pts=void 0,Is(a),a.timelineStartInfo.baseMediaDecodeTime=t,e.audioTimestampRolloverStream&&e.audioTimestampRolloverStream.discontinuity()),r&&(e.videoSegmentStream&&(e.videoSegmentStream.gopCache_=[],e.videoTimestampRolloverStream.discontinuity()),r.timelineStartInfo.dts=void 0,r.timelineStartInfo.pts=void 0,Is(r),e.captionStream.reset(),r.timelineStartInfo.baseMediaDecodeTime=t),e.timedMetadataTimestampRolloverStream&&e.timedMetadataTimestampRolloverStream.discontinuity()},this.setAudioAppendStart=function(t){a&&this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(t)},this.alignGopsWith=function(t){r&&this.transmuxPipeline_.videoSegmentStream&&this.transmuxPipeline_.videoSegmentStream.alignGopsWith(t)},this.push=function(t){if(i){var e=Po(t);e&&"aac"!==this.transmuxPipeline_.type?this.setupAacPipeline():e||"ts"===this.transmuxPipeline_.type||this.setupTsPipeline(),i=!1}this.transmuxPipeline_.headOfPipeline.push(t)},this.flush=function(){i=!0,this.transmuxPipeline_.headOfPipeline.flush()},this.resetCaptions=function(){this.transmuxPipeline_.captionStream&&this.transmuxPipeline_.captionStream.reset()}}).prototype=new Es;var zo,Wo,Go={Transmuxer:Lo,VideoSegmentStream:Eo,AudioSegmentStream:Ao,AUDIO_PROPERTIES:Vo,VIDEO_PROPERTIES:qo},Xo=Ss.parseType,Yo=function(t){return new Date(1e3*t-20828448e5)},$o=function(t){return{isLeading:(12&t[0])>>>2,dependsOn:3&t[0],isDependedOn:(192&t[1])>>>6,hasRedundancy:(48&t[1])>>>4,paddingValue:(14&t[1])>>>1,isNonSyncSample:1&t[1],degradationPriority:t[2]<<8|t[3]}},Ko={avc1:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{dataReferenceIndex:e.getUint16(6),width:e.getUint16(24),height:e.getUint16(26),horizresolution:e.getUint16(28)+e.getUint16(30)/16,vertresolution:e.getUint16(32)+e.getUint16(34)/16,frameCount:e.getUint16(40),depth:e.getUint16(74),config:zo(t.subarray(78,t.byteLength))}},avcC:function(t){var e,i,n,r,a=new DataView(t.buffer,t.byteOffset,t.byteLength),s={configurationVersion:t[0],avcProfileIndication:t[1],profileCompatibility:t[2],avcLevelIndication:t[3],lengthSizeMinusOne:3&t[4],sps:[],pps:[]},o=31&t[5];for(n=6,r=0;r<o;r++)i=a.getUint16(n),n+=2,s.sps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;for(e=t[n],n++,r=0;r<e;r++)i=a.getUint16(n),n+=2,s.pps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;return s},btrt:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{bufferSizeDB:e.getUint32(0),maxBitrate:e.getUint32(4),avgBitrate:e.getUint32(8)}},esds:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),esId:t[6]<<8|t[7],streamPriority:31&t[8],decoderConfig:{objectProfileIndication:t[11],streamType:t[12]>>>2&63,bufferSize:t[13]<<16|t[14]<<8|t[15],maxBitrate:t[16]<<24|t[17]<<16|t[18]<<8|t[19],avgBitrate:t[20]<<24|t[21]<<16|t[22]<<8|t[23],decoderConfigDescriptor:{tag:t[24],length:t[25],audioObjectType:t[26]>>>3&31,samplingFrequencyIndex:(7&t[26])<<1|t[27]>>>7&1,channelConfiguration:t[27]>>>3&15}}}},ftyp:function(t){for(var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={majorBrand:Xo(t.subarray(0,4)),minorVersion:e.getUint32(4),compatibleBrands:[]},n=8;n<t.byteLength;)i.compatibleBrands.push(Xo(t.subarray(n,n+4))),n+=4;return i},dinf:function(t){return{boxes:zo(t)}},dref:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),dataReferences:zo(t.subarray(8))}},hdlr:function(t){var e={version:new DataView(t.buffer,t.byteOffset,t.byteLength).getUint8(0),flags:new Uint8Array(t.subarray(1,4)),handlerType:Xo(t.subarray(8,12)),name:""},i=8;for(i=24;i<t.byteLength;i++){if(0===t[i]){i++;break}e.name+=String.fromCharCode(t[i])}return e.name=decodeURIComponent(escape(e.name)),e},mdat:function(t){return{byteLength:t.byteLength,nals:function(t){var e,i,n=new DataView(t.buffer,t.byteOffset,t.byteLength),r=[];for(e=0;e+4<t.length;e+=i)if(i=n.getUint32(e),e+=4,i<=0)r.push("<span style='color:red;'>MALFORMED DATA</span>");else switch(31&t[e]){case 1:r.push("slice_layer_without_partitioning_rbsp");break;case 5:r.push("slice_layer_without_partitioning_rbsp_idr");break;case 6:r.push("sei_rbsp");break;case 7:r.push("seq_parameter_set_rbsp");break;case 8:r.push("pic_parameter_set_rbsp");break;case 9:r.push("access_unit_delimiter_rbsp");break;default:r.push("UNKNOWN NAL - "+t[e]&31)}return r}(t)}},mdhd:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n=4,r={version:i.getUint8(0),flags:new Uint8Array(t.subarray(1,4)),language:""};return 1===r.version?(n+=4,r.creationTime=Yo(i.getUint32(n)),n+=8,r.modificationTime=Yo(i.getUint32(n)),n+=4,r.timescale=i.getUint32(n),n+=8):(r.creationTime=Yo(i.getUint32(n)),n+=4,r.modificationTime=Yo(i.getUint32(n)),n+=4,r.timescale=i.getUint32(n),n+=4),r.duration=i.getUint32(n),n+=4,e=i.getUint16(n),r.language+=String.fromCharCode(96+(e>>10)),r.language+=String.fromCharCode(96+((992&e)>>5)),r.language+=String.fromCharCode(96+(31&e)),r},mdia:function(t){return{boxes:zo(t)}},mfhd:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),sequenceNumber:t[4]<<24|t[5]<<16|t[6]<<8|t[7]}},minf:function(t){return{boxes:zo(t)}},mp4a:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={dataReferenceIndex:e.getUint16(6),channelcount:e.getUint16(16),samplesize:e.getUint16(18),samplerate:e.getUint16(24)+e.getUint16(26)/65536};return 28<t.byteLength&&(i.streamDescriptor=zo(t.subarray(28))[0]),i},moof:function(t){return{boxes:zo(t)}},moov:function(t){return{boxes:zo(t)}},mvex:function(t){return{boxes:zo(t)}},mvhd:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i=4,n={version:e.getUint8(0),flags:new Uint8Array(t.subarray(1,4))};return 1===n.version?(i+=4,n.creationTime=Yo(e.getUint32(i)),i+=8,n.modificationTime=Yo(e.getUint32(i)),i+=4,n.timescale=e.getUint32(i),i+=8):(n.creationTime=Yo(e.getUint32(i)),i+=4,n.modificationTime=Yo(e.getUint32(i)),i+=4,n.timescale=e.getUint32(i),i+=4),n.duration=e.getUint32(i),i+=4,n.rate=e.getUint16(i)+e.getUint16(i+2)/16,i+=4,n.volume=e.getUint8(i)+e.getUint8(i+1)/8,i+=2,i+=2,i+=8,n.matrix=new Uint32Array(t.subarray(i,i+36)),i+=36,i+=24,n.nextTrackId=e.getUint32(i),n},pdin:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{version:e.getUint8(0),flags:new Uint8Array(t.subarray(1,4)),rate:e.getUint32(4),initialDelay:e.getUint32(8)}},sdtp:function(t){var e,i={version:t[0],flags:new Uint8Array(t.subarray(1,4)),samples:[]};for(e=4;e<t.byteLength;e++)i.samples.push({dependsOn:(48&t[e])>>4,isDependedOn:(12&t[e])>>2,hasRedundancy:3&t[e]});return i},sidx:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n={version:t[0],flags:new Uint8Array(t.subarray(1,4)),references:[],referenceId:i.getUint32(4),timescale:i.getUint32(8),earliestPresentationTime:i.getUint32(12),firstOffset:i.getUint32(16)},r=i.getUint16(22);for(e=24;r;e+=12,r--)n.references.push({referenceType:(128&t[e])>>>7,referencedSize:2147483647&i.getUint32(e),subsegmentDuration:i.getUint32(e+4),startsWithSap:!!(128&t[e+8]),sapType:(112&t[e+8])>>>4,sapDeltaTime:268435455&i.getUint32(e+8)});return n},smhd:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),balance:t[4]+t[5]/256}},stbl:function(t){return{boxes:zo(t)}},stco:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n={version:t[0],flags:new Uint8Array(t.subarray(1,4)),chunkOffsets:[]},r=i.getUint32(4);for(e=8;r;e+=4,r--)n.chunkOffsets.push(i.getUint32(e));return n},stsc:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n=i.getUint32(4),r={version:t[0],flags:new Uint8Array(t.subarray(1,4)),sampleToChunks:[]};for(e=8;n;e+=12,n--)r.sampleToChunks.push({firstChunk:i.getUint32(e),samplesPerChunk:i.getUint32(e+4),sampleDescriptionIndex:i.getUint32(e+8)});return r},stsd:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),sampleDescriptions:zo(t.subarray(8))}},stsz:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n={version:t[0],flags:new Uint8Array(t.subarray(1,4)),sampleSize:i.getUint32(4),entries:[]};for(e=12;e<t.byteLength;e+=4)n.entries.push(i.getUint32(e));return n},stts:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n={version:t[0],flags:new Uint8Array(t.subarray(1,4)),timeToSamples:[]},r=i.getUint32(4);for(e=8;r;e+=8,r--)n.timeToSamples.push({sampleCount:i.getUint32(e),sampleDelta:i.getUint32(e+4)});return n},styp:function(t){return Ko.ftyp(t)},tfdt:function(t){var e={version:t[0],flags:new Uint8Array(t.subarray(1,4)),baseMediaDecodeTime:t[4]<<24|t[5]<<16|t[6]<<8|t[7]};return 1===e.version&&(e.baseMediaDecodeTime*=Math.pow(2,32),e.baseMediaDecodeTime+=t[8]<<24|t[9]<<16|t[10]<<8|t[11]),e},tfhd:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n={version:t[0],flags:new Uint8Array(t.subarray(1,4)),trackId:i.getUint32(4)},r=1&n.flags[2],a=2&n.flags[2],s=8&n.flags[2],o=16&n.flags[2],u=32&n.flags[2],l=65536&n.flags[0],c=131072&n.flags[0];return e=8,r&&(e+=4,n.baseDataOffset=i.getUint32(12),e+=4),a&&(n.sampleDescriptionIndex=i.getUint32(e),e+=4),s&&(n.defaultSampleDuration=i.getUint32(e),e+=4),o&&(n.defaultSampleSize=i.getUint32(e),e+=4),u&&(n.defaultSampleFlags=i.getUint32(e)),l&&(n.durationIsEmpty=!0),!r&&c&&(n.baseDataOffsetIsMoof=!0),n},tkhd:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i=4,n={version:e.getUint8(0),flags:new Uint8Array(t.subarray(1,4))};return 1===n.version?(i+=4,n.creationTime=Yo(e.getUint32(i)),i+=8,n.modificationTime=Yo(e.getUint32(i)),i+=4,n.trackId=e.getUint32(i),i+=4,i+=8):(n.creationTime=Yo(e.getUint32(i)),i+=4,n.modificationTime=Yo(e.getUint32(i)),i+=4,n.trackId=e.getUint32(i),i+=4,i+=4),n.duration=e.getUint32(i),i+=4,i+=8,n.layer=e.getUint16(i),i+=2,n.alternateGroup=e.getUint16(i),i+=2,n.volume=e.getUint8(i)+e.getUint8(i+1)/8,i+=2,i+=2,n.matrix=new Uint32Array(t.subarray(i,i+36)),i+=36,n.width=e.getUint16(i)+e.getUint16(i+2)/16,i+=4,n.height=e.getUint16(i)+e.getUint16(i+2)/16,n},traf:function(t){return{boxes:zo(t)}},trak:function(t){return{boxes:zo(t)}},trex:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),trackId:e.getUint32(4),defaultSampleDescriptionIndex:e.getUint32(8),defaultSampleDuration:e.getUint32(12),defaultSampleSize:e.getUint32(16),sampleDependsOn:3&t[20],sampleIsDependedOn:(192&t[21])>>6,sampleHasRedundancy:(48&t[21])>>4,samplePaddingValue:(14&t[21])>>1,sampleIsDifferenceSample:!!(1&t[21]),sampleDegradationPriority:e.getUint16(22)}},trun:function(t){var e,i={version:t[0],flags:new Uint8Array(t.subarray(1,4)),samples:[]},n=new DataView(t.buffer,t.byteOffset,t.byteLength),r=1&i.flags[2],a=4&i.flags[2],s=1&i.flags[1],o=2&i.flags[1],u=4&i.flags[1],l=8&i.flags[1],c=n.getUint32(4),h=8;for(r&&(i.dataOffset=n.getInt32(h),h+=4),a&&c&&(e={flags:$o(t.subarray(h,h+4))},h+=4,s&&(e.duration=n.getUint32(h),h+=4),o&&(e.size=n.getUint32(h),h+=4),l&&(e.compositionTimeOffset=n.getUint32(h),h+=4),i.samples.push(e),c--);c--;)e={},s&&(e.duration=n.getUint32(h),h+=4),o&&(e.size=n.getUint32(h),h+=4),u&&(e.flags=$o(t.subarray(h,h+4)),h+=4),l&&(e.compositionTimeOffset=n.getUint32(h),h+=4),i.samples.push(e);return i},"url ":function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4))}},vmhd:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),graphicsmode:e.getUint16(4),opcolor:new Uint16Array([e.getUint16(6),e.getUint16(8),e.getUint16(10)])}}},Jo={inspect:zo=function(t){for(var e,i,n,r,a,s=0,o=[],u=new ArrayBuffer(t.length),l=new Uint8Array(u),c=0;c<t.length;++c)l[c]=t[c];for(e=new DataView(u);s<t.byteLength;)i=e.getUint32(s),n=Xo(t.subarray(s+4,s+8)),r=1<i?s+i:t.byteLength,(a=(Ko[n]||function(t){return{data:t}})(t.subarray(s+8,r))).size=i,a.type=n,o.push(a),s=r;return o},textify:Wo=function(t,e){var a;return e=e||0,a=new Array(2*e+1).join(" "),t.map(function(r,t){return a+r.type+"\n"+Object.keys(r).filter(function(t){return"type"!==t&&"boxes"!==t}).map(function(t){var e=a+" "+t+": ",i=r[t];if(i instanceof Uint8Array||i instanceof Uint32Array){var n=Array.prototype.slice.call(new Uint8Array(i.buffer,i.byteOffset,i.byteLength)).map(function(t){return" "+("00"+t.toString(16)).slice(-2)}).join("").match(/.{1,24}/g);return n?1===n.length?e+"<"+n.join("").slice(1)+">":e+"<\n"+n.map(function(t){return a+" "+t}).join("\n")+"\n"+a+" >":e+"<>"}return e+JSON.stringify(i,null,2).split("\n").map(function(t,e){return 0===e?t:a+" "+t}).join("\n")}).join("\n")+(r.boxes?"\n"+Wo(r.boxes,e+1):"")}).join("\n")},parseTfdt:Ko.tfdt,parseHdlr:Ko.hdlr,parseTfhd:Ko.tfhd,parseTrun:Ko.trun},Qo=Bs,Zo=Gs.CaptionStream,tu=function(t,e){for(var i=t,n=0;n<e.length;n++){var r=e[n];if(i<r.size)return r;i-=r.size}return null},eu=function(t,y){var n=Ss.findBox(t,["moof","traf"]),e=Ss.findBox(t,["mdat"]),v={},r=[];return e.forEach(function(t,e){var i=n[e];r.push({mdat:t,traf:i})}),r.forEach(function(t){var e,i,n,r,a,s,o,u,l=t.mdat,c=t.traf,h=Ss.findBox(c,["tfhd"]),d=Jo.parseTfhd(h[0]),p=d.trackId,f=Ss.findBox(c,["tfdt"]),m=0<f.length?Jo.parseTfdt(f[0]).baseMediaDecodeTime:0,g=Ss.findBox(c,["trun"]);y===p&&0<g.length&&(i=g,r=m,a=(n=d).defaultSampleDuration||0,s=n.defaultSampleSize||0,o=n.trackId,u=[],i.forEach(function(t){var e=Jo.parseTrun(t).samples;e.forEach(function(t){void 0===t.duration&&(t.duration=a),void 0===t.size&&(t.size=s),t.trackId=o,t.dts=r,void 0===t.compositionTimeOffset&&(t.compositionTimeOffset=0),t.pts=r+t.compositionTimeOffset,r+=t.duration}),u=u.concat(e)}),e=function(t,e,i){var n,r,a,s,o=new DataView(t.buffer,t.byteOffset,t.byteLength),u=[];for(r=0;r+4<t.length;r+=a)if(a=o.getUint32(r),r+=4,!(a<=0))switch(31&t[r]){case 6:var l=t.subarray(r+1,r+1+a),c=tu(r,e);n={nalUnitType:"sei_rbsp",size:a,data:l,escapedRBSP:Qo(l),trackId:i},c?(n.pts=c.pts,n.dts=c.dts,s=c):(n.pts=s.pts,n.dts=s.dts),u.push(n)}return u}(l,u,p),v[p]||(v[p]=[]),v[p]=v[p].concat(e))}),v},iu={generator:Cs,probe:Ss,Transmuxer:Go.Transmuxer,AudioSegmentStream:Go.AudioSegmentStream,VideoSegmentStream:Go.VideoSegmentStream,CaptionParser:function(){var e,u,l,c,h,t=!1;this.isInitialized=function(){return t},this.init=function(){e=new Zo,t=!0,e.on("data",function(t){t.startTime=t.startPts/c,t.endTime=t.endPts/c,h.captions.push(t),h.captionStreams[t.stream]=!0})},this.isNewInit=function(t,e){return!(t&&0===t.length||e&&"object"===("undefined"==typeof 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Uint8Array([0,0,0,7,0,0,0,0,0,0,0,0,(4278190080&t.id)>>24,(16711680&t.id)>>16,(65280&t.id)>>8,255&t.id,0,0,0,0,(4278190080&t.duration)>>24,(16711680&t.duration)>>16,(65280&t.duration)>>8,255&t.duration,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,(65280&t.width)>>8,255&t.width,0,0,(65280&t.height)>>8,255&t.height,0,0]);return o(T.tkhd,e)},v=function(t){var e,i,n,r,a,s;return e=o(T.tfhd,new Uint8Array([0,0,0,58,(4278190080&t.id)>>24,(16711680&t.id)>>16,(65280&t.id)>>8,255&t.id,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0])),a=Math.floor(t.baseMediaDecodeTime/(F+1)),s=Math.floor(t.baseMediaDecodeTime%(F+1)),i=o(T.tfdt,new Uint8Array([1,0,0,0,a>>>24&255,a>>>16&255,a>>>8&255,255&a,s>>>24&255,s>>>16&255,s>>>8&255,255&s])),92,"audio"===t.type?(n=b(t,92),o(T.traf,e,i,n)):(r=m(t),n=b(t,r.length+92),o(T.traf,e,i,n,r))},c=function(t){return t.duration=t.duration||4294967295,o(T.trak,h(t),d(t))},_=function(t){var e=new Uint8Array([0,0,0,0,(4278190080&t.id)>>24,(16711680&t.id)>>16,(65280&t.id)>>8,255&t.id,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,1]);return"video"!==t.type&&(e[e.length-1]=0),o(T.trex,e)},j=function(t,e){var i=0,n=0,r=0,a=0;return t.length&&(void 0!==t[0].duration&&(i=1),void 0!==t[0].size&&(n=2),void 0!==t[0].flags&&(r=4),void 0!==t[0].compositionTimeOffset&&(a=8)),[0,0,i|n|r|a,1,(4278190080&t.length)>>>24,(16711680&t.length)>>>16,(65280&t.length)>>>8,255&t.length,(4278190080&e)>>>24,(16711680&e)>>>16,(65280&e)>>>8,255&e]},B=function(t,e){var i,n,r,a;for(e+=20+16*(n=t.samples||[]).length,i=j(n,e),a=0;a<n.length;a++)r=n[a],i=i.concat([(4278190080&r.duration)>>>24,(16711680&r.duration)>>>16,(65280&r.duration)>>>8,255&r.duration,(4278190080&r.size)>>>24,(16711680&r.size)>>>16,(65280&r.size)>>>8,255&r.size,r.flags.isLeading<<2|r.flags.dependsOn,r.flags.isDependedOn<<6|r.flags.hasRedundancy<<4|r.flags.paddingValue<<1|r.flags.isNonSyncSample,61440&r.flags.degradationPriority,15&r.flags.degradationPriority,(4278190080&r.compositionTimeOffset)>>>24,(16711680&r.compositionTimeOffset)>>>16,(65280&r.compositionTimeOffset)>>>8,255&r.compositionTimeOffset]);return o(T.trun,new Uint8Array(i))},N=function(t,e){var i,n,r,a;for(e+=20+8*(n=t.samples||[]).length,i=j(n,e),a=0;a<n.length;a++)r=n[a],i=i.concat([(4278190080&r.duration)>>>24,(16711680&r.duration)>>>16,(65280&r.duration)>>>8,255&r.duration,(4278190080&r.size)>>>24,(16711680&r.size)>>>16,(65280&r.size)>>>8,255&r.size]);return o(T.trun,new Uint8Array(i))},b=function(t,e){return"audio"===t.type?N(t,e):B(t,e)};var H,V,q={ftyp:r=function(){return o(T.ftyp,S,k,S,C)},mdat:function(t){return o(T.mdat,t)},moof:t,moov:s,initSegment:function(t){var e,i=r(),n=s(t);return(e=new Uint8Array(i.byteLength+n.byteLength)).set(i),e.set(n,i.byteLength),e}},z=function(t){return t>>>0},W={findBox:H=function(t,e){var i,n,r,a,s,o=[];if(!e.length)return null;for(i=0;i<t.byteLength;)n=z(t[i]<<24|t[i+1]<<16|t[i+2]<<8|t[i+3]),r=V(t.subarray(i+4,i+8)),a=1<n?i+n:t.byteLength,r===e[0]&&(1===e.length?o.push(t.subarray(i+8,a)):(s=H(t.subarray(i+8,a),e.slice(1))).length&&(o=o.concat(s))),i=a;return o},parseType:V=function(t){var e="";return e+=String.fromCharCode(t[0]),e+=String.fromCharCode(t[1]),e+=String.fromCharCode(t[2]),e+=String.fromCharCode(t[3])},timescale:function(t){return H(t,["moov","trak"]).reduce(function(t,e){var i,n,r,a,s;return(i=H(e,["tkhd"])[0])?(n=i[0],a=z(i[r=0===n?12:20]<<24|i[r+1]<<16|i[r+2]<<8|i[r+3]),(s=H(e,["mdia","mdhd"])[0])?(r=0===(n=s[0])?12:20,t[a]=z(s[r]<<24|s[r+1]<<16|s[r+2]<<8|s[r+3]),t):null):null},{})},startTime:function(r,t){var e,i,n;return e=H(t,["moof","traf"]),i=[].concat.apply([],e.map(function(n){return H(n,["tfhd"]).map(function(t){var e,i;return e=z(t[4]<<24|t[5]<<16|t[6]<<8|t[7]),i=r[e]||9e4,(H(n,["tfdt"]).map(function(t){var e,i;return e=t[0],i=z(t[4]<<24|t[5]<<16|t[6]<<8|t[7]),1===e&&(i*=Math.pow(2,32),i+=z(t[8]<<24|t[9]<<16|t[10]<<8|t[11])),i})[0]||1/0)/i})})),n=Math.min.apply(null,i),isFinite(n)?n:0},videoTrackIds:function(t){var e=H(t,["moov","trak"]),o=[];return e.forEach(function(t){var e=H(t,["mdia","hdlr"]),s=H(t,["tkhd"]);e.forEach(function(t,e){var i,n,r=V(t.subarray(8,12)),a=s[e];"vide"===r&&(n=0===(i=new DataView(a.buffer,a.byteOffset,a.byteLength)).getUint8(0)?i.getUint32(12):i.getUint32(20),o.push(n))})}),o}},G=function(){this.init=function(){var a={};this.on=function(t,e){a[t]||(a[t]=[]),a[t]=a[t].concat(e)},this.off=function(t,e){var i;return!!a[t]&&(i=a[t].indexOf(e),a[t]=a[t].slice(),a[t].splice(i,1),-1<i)},this.trigger=function(t){var e,i,n,r;if(e=a[t])if(2===arguments.length)for(n=e.length,i=0;i<n;++i)e[i].call(this,arguments[1]);else{for(r=[],i=arguments.length,i=1;i<arguments.length;++i)r.push(arguments[i]);for(n=e.length,i=0;i<n;++i)e[i].apply(this,r)}},this.dispose=function(){a={}}}};G.prototype.pipe=function(e){return this.on("data",function(t){e.push(t)}),this.on("done",function(t){e.flush(t)}),e},G.prototype.push=function(t){this.trigger("data",t)},G.prototype.flush=function(t){this.trigger("done",t)};var X=G,Y=function(t){var e,i,n=[],r=[];for(e=n.byteLength=0;e<t.length;e++)"access_unit_delimiter_rbsp"===(i=t[e]).nalUnitType?(n.length&&(n.duration=i.dts-n.dts,r.push(n)),(n=[i]).byteLength=i.data.byteLength,n.pts=i.pts,n.dts=i.dts):("slice_layer_without_partitioning_rbsp_idr"===i.nalUnitType&&(n.keyFrame=!0),n.duration=i.dts-n.dts,n.byteLength+=i.data.byteLength,n.push(i));return r.length&&(!n.duration||n.duration<=0)&&(n.duration=r[r.length-1].duration),r.push(n),r},$=function(t){var e,i,n=[],r=[];for(n.byteLength=0,n.nalCount=0,n.duration=0,n.pts=t[0].pts,n.dts=t[0].dts,r.byteLength=0,r.nalCount=0,r.duration=0,r.pts=t[0].pts,r.dts=t[0].dts,e=0;e<t.length;e++)(i=t[e]).keyFrame?(n.length&&(r.push(n),r.byteLength+=n.byteLength,r.nalCount+=n.nalCount,r.duration+=n.duration),(n=[i]).nalCount=i.length,n.byteLength=i.byteLength,n.pts=i.pts,n.dts=i.dts,n.duration=i.duration):(n.duration+=i.duration,n.nalCount+=i.length,n.byteLength+=i.byteLength,n.push(i));return r.length&&n.duration<=0&&(n.duration=r[r.length-1].duration),r.byteLength+=n.byteLength,r.nalCount+=n.nalCount,r.duration+=n.duration,r.push(n),r},K=function(t){var e;return!t[0][0].keyFrame&&1<t.length&&(e=t.shift(),t.byteLength-=e.byteLength,t.nalCount-=e.nalCount,t[0][0].dts=e.dts,t[0][0].pts=e.pts,t[0][0].duration+=e.duration),t},J=function(t,e){var i,n,r,a,s,o,u,l=e||0,c=[];for(i=0;i<t.length;i++)for(a=t[i],n=0;n<a.length;n++)s=a[n],o=s,u=void 0,(u={size:0,flags:{isLeading:0,dependsOn:1,isDependedOn:0,hasRedundancy:0,degradationPriority:0,isNonSyncSample:1}}).dataOffset=l,u.compositionTimeOffset=o.pts-o.dts,u.duration=o.duration,u.size=4*o.length,u.size+=o.byteLength,o.keyFrame&&(u.flags.dependsOn=2,u.flags.isNonSyncSample=0),l+=(r=u).size,c.push(r);return c},Q=function(t){var e,i,n,r,a,s,o=0,u=t.byteLength,l=t.nalCount,c=new Uint8Array(u+4*l),h=new DataView(c.buffer);for(e=0;e<t.length;e++)for(r=t[e],i=0;i<r.length;i++)for(a=r[i],n=0;n<a.length;n++)s=a[n],h.setUint32(o,s.data.byteLength),o+=4,c.set(s.data,o),o+=s.data.byteLength;return c},Z=function(t){delete t.minSegmentDts,delete t.maxSegmentDts,delete t.minSegmentPts,delete t.maxSegmentPts},tt=function(t,e){var i,n=t.minSegmentDts;return e||(n-=t.timelineStartInfo.dts),i=t.timelineStartInfo.baseMediaDecodeTime,i+=n,i=Math.max(0,i),"audio"===t.type&&(i*=t.samplerate/9e4,i=Math.floor(i)),i},et=function(t,e){"number"==typeof e.pts&&(void 0===t.timelineStartInfo.pts&&(t.timelineStartInfo.pts=e.pts),void 0===t.minSegmentPts?t.minSegmentPts=e.pts:t.minSegmentPts=Math.min(t.minSegmentPts,e.pts),void 0===t.maxSegmentPts?t.maxSegmentPts=e.pts:t.maxSegmentPts=Math.max(t.maxSegmentPts,e.pts)),"number"==typeof e.dts&&(void 0===t.timelineStartInfo.dts&&(t.timelineStartInfo.dts=e.dts),void 0===t.minSegmentDts?t.minSegmentDts=e.dts:t.minSegmentDts=Math.min(t.minSegmentDts,e.dts),void 0===t.maxSegmentDts?t.maxSegmentDts=e.dts:t.maxSegmentDts=Math.max(t.maxSegmentDts,e.dts))},it=function(t){for(var e=0,i={payloadType:-1,payloadSize:0},n=0,r=0;e<t.byteLength&&128!==t[e];){for(;255===t[e];)n+=255,e++;for(n+=t[e++];255===t[e];)r+=255,e++;if(r+=t[e++],!i.payload&&4===n){i.payloadType=n,i.payloadSize=r,i.payload=t.subarray(e,e+r);break}e+=r,r=n=0}return i},nt=function(t){return 181!==t.payload[0]?null:49!=(t.payload[1]<<8|t.payload[2])?null:"GA94"!==String.fromCharCode(t.payload[3],t.payload[4],t.payload[5],t.payload[6])?null:3!==t.payload[7]?null:t.payload.subarray(8,t.payload.length-1)},rt=function(t,e){var i,n,r,a,s=[];if(!(64&e[0]))return s;for(n=31&e[0],i=0;i<n;i++)a={type:3&e[2+(r=3*i)],pts:t},4&e[r+2]&&(a.ccData=e[r+3]<<8|e[r+4],s.push(a));return s},at=function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},st=4,ot=function t(){t.prototype.init.call(this),this.captionPackets_=[],this.ccStreams_=[new dt(0,0),new dt(0,1),new dt(1,0),new dt(1,1)],this.reset(),this.ccStreams_.forEach(function(t){t.on("data",this.trigger.bind(this,"data")),t.on("done",this.trigger.bind(this,"done"))},this)};(ot.prototype=new X).push=function(t){var e,i,n;if("sei_rbsp"===t.nalUnitType&&(e=it(t.escapedRBSP)).payloadType===st&&(i=nt(e)))if(t.dts<this.latestDts_)this.ignoreNextEqualDts_=!0;else{if(t.dts===this.latestDts_&&this.ignoreNextEqualDts_)return this.numSameDts_--,void(this.numSameDts_||(this.ignoreNextEqualDts_=!1));n=rt(t.pts,i),this.captionPackets_=this.captionPackets_.concat(n),this.latestDts_!==t.dts&&(this.numSameDts_=0),this.numSameDts_++,this.latestDts_=t.dts}},ot.prototype.flush=function(){this.captionPackets_.length?(this.captionPackets_.forEach(function(t,e){t.presortIndex=e}),this.captionPackets_.sort(function(t,e){return t.pts===e.pts?t.presortIndex-e.presortIndex:t.pts-e.pts}),this.captionPackets_.forEach(function(t){t.type<2&&this.dispatchCea608Packet(t)},this),this.captionPackets_.length=0,this.ccStreams_.forEach(function(t){t.flush()},this)):this.ccStreams_.forEach(function(t){t.flush()},this)},ot.prototype.reset=function(){this.latestDts_=null,this.ignoreNextEqualDts_=!1,this.numSameDts_=0,this.activeCea608Channel_=[null,null],this.ccStreams_.forEach(function(t){t.reset()})},ot.prototype.dispatchCea608Packet=function(t){this.setsChannel1Active(t)?this.activeCea608Channel_[t.type]=0:this.setsChannel2Active(t)&&(this.activeCea608Channel_[t.type]=1),null!==this.activeCea608Channel_[t.type]&&this.ccStreams_[(t.type<<1)+this.activeCea608Channel_[t.type]].push(t)},ot.prototype.setsChannel1Active=function(t){return 4096==(30720&t.ccData)},ot.prototype.setsChannel2Active=function(t){return 6144==(30720&t.ccData)};var ut={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,304:174,305:176,306:189,307:191,308:8482,309:162,310:163,311:9834,312:224,313:160,314:232,315:226,316:234,317:238,318:244,319:251,544:193,545:201,546:211,547:218,548:220,549:252,550:8216,551:161,552:42,553:39,554:8212,555:169,556:8480,557:8226,558:8220,559:8221,560:192,561:194,562:199,563:200,564:202,565:203,566:235,567:206,568:207,569:239,570:212,571:217,572:249,573:219,574:171,575:187,800:195,801:227,802:205,803:204,804:236,805:210,806:242,807:213,808:245,809:123,810:125,811:92,812:94,813:95,814:124,815:126,816:196,817:228,818:214,819:246,820:223,821:165,822:164,823:9474,824:197,825:229,826:216,827:248,828:9484,829:9488,830:9492,831:9496},lt=function(t){return null===t?"":(t=ut[t]||t,String.fromCharCode(t))},ct=[4352,4384,4608,4640,5376,5408,5632,5664,5888,5920,4096,4864,4896,5120,5152],ht=function(){for(var t=[],e=15;e--;)t.push("");return t},dt=function t(e,i){t.prototype.init.call(this),this.field_=e||0,this.dataChannel_=i||0,this.name_="CC"+(1+(this.field_<<1|this.dataChannel_)),this.setConstants(),this.reset(),this.push=function(t){var e,i,n,r,a;if((e=32639&t.ccData)!==this.lastControlCode_){if(4096==(61440&e)?this.lastControlCode_=e:e!==this.PADDING_&&(this.lastControlCode_=null),n=e>>>8,r=255&e,e!==this.PADDING_)if(e===this.RESUME_CAPTION_LOADING_)this.mode_="popOn";else if(e===this.END_OF_CAPTION_)this.mode_="popOn",this.clearFormatting(t.pts),this.flushDisplayed(t.pts),i=this.displayed_,this.displayed_=this.nonDisplayed_,this.nonDisplayed_=i,this.startPts_=t.pts;else if(e===this.ROLL_UP_2_ROWS_)this.rollUpRows_=2,this.setRollUp(t.pts);else if(e===this.ROLL_UP_3_ROWS_)this.rollUpRows_=3,this.setRollUp(t.pts);else if(e===this.ROLL_UP_4_ROWS_)this.rollUpRows_=4,this.setRollUp(t.pts);else if(e===this.CARRIAGE_RETURN_)this.clearFormatting(t.pts),this.flushDisplayed(t.pts),this.shiftRowsUp_(),this.startPts_=t.pts;else if(e===this.BACKSPACE_)"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1);else if(e===this.ERASE_DISPLAYED_MEMORY_)this.flushDisplayed(t.pts),this.displayed_=ht();else if(e===this.ERASE_NON_DISPLAYED_MEMORY_)this.nonDisplayed_=ht();else if(e===this.RESUME_DIRECT_CAPTIONING_)"paintOn"!==this.mode_&&(this.flushDisplayed(t.pts),this.displayed_=ht()),this.mode_="paintOn",this.startPts_=t.pts;else if(this.isSpecialCharacter(n,r))a=lt((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isExtCharacter(n,r))"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1),a=lt((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isMidRowCode(n,r))this.clearFormatting(t.pts),this[this.mode_](t.pts," "),this.column_++,14==(14&r)&&this.addFormatting(t.pts,["i"]),1==(1&r)&&this.addFormatting(t.pts,["u"]);else if(this.isOffsetControlCode(n,r))this.column_+=3&r;else if(this.isPAC(n,r)){var s=ct.indexOf(7968&e);"rollUp"===this.mode_&&this.setRollUp(t.pts,s),s!==this.row_&&(this.clearFormatting(t.pts),this.row_=s),1&r&&-1===this.formatting_.indexOf("u")&&this.addFormatting(t.pts,["u"]),16==(16&e)&&(this.column_=4*((14&e)>>1)),this.isColorPAC(r)&&14==(14&r)&&this.addFormatting(t.pts,["i"])}else this.isNormalChar(n)&&(0===r&&(r=null),a=lt(n),a+=lt(r),this[this.mode_](t.pts,a),this.column_+=a.length)}else this.lastControlCode_=null}};dt.prototype=new X,dt.prototype.flushDisplayed=function(t){var e=this.displayed_.map(function(t){return t.trim()}).join("\n").replace(/^\n+|\n+$/g,"");e.length&&this.trigger("data",{startPts:this.startPts_,endPts:t,text:e,stream:this.name_})},dt.prototype.reset=function(){this.mode_="popOn",this.topRow_=0,this.startPts_=0,this.displayed_=ht(),this.nonDisplayed_=ht(),this.lastControlCode_=null,this.column_=0,this.row_=14,this.rollUpRows_=2,this.formatting_=[]},dt.prototype.setConstants=function(){0===this.dataChannel_?(this.BASE_=16,this.EXT_=17,this.CONTROL_=(20|this.field_)<<8,this.OFFSET_=23):1===this.dataChannel_&&(this.BASE_=24,this.EXT_=25,this.CONTROL_=(28|this.field_)<<8,this.OFFSET_=31),this.PADDING_=0,this.RESUME_CAPTION_LOADING_=32|this.CONTROL_,this.END_OF_CAPTION_=47|this.CONTROL_,this.ROLL_UP_2_ROWS_=37|this.CONTROL_,this.ROLL_UP_3_ROWS_=38|this.CONTROL_,this.ROLL_UP_4_ROWS_=39|this.CONTROL_,this.CARRIAGE_RETURN_=45|this.CONTROL_,this.RESUME_DIRECT_CAPTIONING_=41|this.CONTROL_,this.BACKSPACE_=33|this.CONTROL_,this.ERASE_DISPLAYED_MEMORY_=44|this.CONTROL_,this.ERASE_NON_DISPLAYED_MEMORY_=46|this.CONTROL_},dt.prototype.isSpecialCharacter=function(t,e){return t===this.EXT_&&48<=e&&e<=63},dt.prototype.isExtCharacter=function(t,e){return(t===this.EXT_+1||t===this.EXT_+2)&&32<=e&&e<=63},dt.prototype.isMidRowCode=function(t,e){return t===this.EXT_&&32<=e&&e<=47},dt.prototype.isOffsetControlCode=function(t,e){return t===this.OFFSET_&&33<=e&&e<=35},dt.prototype.isPAC=function(t,e){return t>=this.BASE_&&t<this.BASE_+8&&64<=e&&e<=127},dt.prototype.isColorPAC=function(t){return 64<=t&&t<=79||96<=t&&t<=127},dt.prototype.isNormalChar=function(t){return 32<=t&&t<=127},dt.prototype.setRollUp=function(t,e){if("rollUp"!==this.mode_&&(this.row_=14,this.mode_="rollUp",this.flushDisplayed(t),this.nonDisplayed_=ht(),this.displayed_=ht()),void 0!==e&&e!==this.row_)for(var i=0;i<this.rollUpRows_;i++)this.displayed_[e-i]=this.displayed_[this.row_-i],this.displayed_[this.row_-i]="";void 0===e&&(e=this.row_),this.topRow_=e-this.rollUpRows_+1},dt.prototype.addFormatting=function(t,e){this.formatting_=this.formatting_.concat(e);var i=e.reduce(function(t,e){return t+"<"+e+">"},"");this[this.mode_](t,i)},dt.prototype.clearFormatting=function(t){if(this.formatting_.length){var e=this.formatting_.reverse().reduce(function(t,e){return t+"</"+e+">"},"");this.formatting_=[],this[this.mode_](t,e)}},dt.prototype.popOn=function(t,e){var i=this.nonDisplayed_[this.row_];i+=e,this.nonDisplayed_[this.row_]=i},dt.prototype.rollUp=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i},dt.prototype.shiftRowsUp_=function(){var t;for(t=0;t<this.topRow_;t++)this.displayed_[t]="";for(t=this.row_+1;t<15;t++)this.displayed_[t]="";for(t=this.topRow_;t<this.row_;t++)this.displayed_[t]=this.displayed_[t+1];this.displayed_[this.row_]=""},dt.prototype.paintOn=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i};var pt={CaptionStream:ot,Cea608Stream:dt},ft={H264_STREAM_TYPE:27,ADTS_STREAM_TYPE:15,METADATA_STREAM_TYPE:21},mt=function(t,e){var i=1;for(e<t&&(i=-1);4294967296<Math.abs(e-t);)t+=8589934592*i;return t},gt=function t(e){var i,n;t.prototype.init.call(this),this.type_=e,this.push=function(t){t.type===this.type_&&(void 0===n&&(n=t.dts),t.dts=mt(t.dts,n),t.pts=mt(t.pts,n),i=t.dts,this.trigger("data",t))},this.flush=function(){n=i,this.trigger("done")},this.discontinuity=function(){i=n=void 0}};gt.prototype=new X;var yt,vt=gt,_t=function(t,e,i){var n,r="";for(n=e;n<i;n++)r+="%"+("00"+t[n].toString(16)).slice(-2);return r},bt=function(t,e,i){return decodeURIComponent(_t(t,e,i))},Tt=function(t){return t[0]<<21|t[1]<<14|t[2]<<7|t[3]},St={TXXX:function(t){var e;if(3===t.data[0]){for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=bt(t.data,1,e),t.value=bt(t.data,e+1,t.data.length).replace(/\0*$/,"");break}t.data=t.value}},WXXX:function(t){var e;if(3===t.data[0])for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=bt(t.data,1,e),t.url=bt(t.data,e+1,t.data.length);break}},PRIV:function(t){var e,i;for(e=0;e<t.data.length;e++)if(0===t.data[e]){t.owner=(i=t.data,unescape(_t(i,0,e)));break}t.privateData=t.data.subarray(e+1),t.data=t.privateData}};(yt=function(t){var e,u={debug:!(!t||!t.debug),descriptor:t&&t.descriptor},l=0,c=[],h=0;if(yt.prototype.init.call(this),this.dispatchType=ft.METADATA_STREAM_TYPE.toString(16),u.descriptor)for(e=0;e<u.descriptor.length;e++)this.dispatchType+=("00"+u.descriptor[e].toString(16)).slice(-2);this.push=function(t){var e,i,n,r,a;if("timed-metadata"===t.type)if(t.dataAlignmentIndicator&&(h=0,c.length=0),0===c.length&&(t.data.length<10||t.data[0]!=="I".charCodeAt(0)||t.data[1]!=="D".charCodeAt(0)||t.data[2]!=="3".charCodeAt(0)))u.debug;else if(c.push(t),h+=t.data.byteLength,1===c.length&&(l=Tt(t.data.subarray(6,10)),l+=10),!(h<l)){for(e={data:new Uint8Array(l),frames:[],pts:c[0].pts,dts:c[0].dts},a=0;a<l;)e.data.set(c[0].data.subarray(0,l-a),a),a+=c[0].data.byteLength,h-=c[0].data.byteLength,c.shift();i=10,64&e.data[5]&&(i+=4,i+=Tt(e.data.subarray(10,14)),l-=Tt(e.data.subarray(16,20)));do{if((n=Tt(e.data.subarray(i+4,i+8)))<1)return;if((r={id:String.fromCharCode(e.data[i],e.data[i+1],e.data[i+2],e.data[i+3]),data:e.data.subarray(i+10,i+n+10)}).key=r.id,St[r.id]&&(St[r.id](r),"com.apple.streaming.transportStreamTimestamp"===r.owner)){var s=r.data,o=(1&s[3])<<30|s[4]<<22|s[5]<<14|s[6]<<6|s[7]>>>2;o*=4,o+=3&s[7],r.timeStamp=o,void 0===e.pts&&void 0===e.dts&&(e.pts=r.timeStamp,e.dts=r.timeStamp),this.trigger("timestamp",r)}e.frames.push(r),i+=10,i+=n}while(i<l);this.trigger("data",e)}}}).prototype=new X;var kt,Ct,wt,Et=yt,At=vt;(kt=function(){var r=new Uint8Array(188),a=0;kt.prototype.init.call(this),this.push=function(t){var e,i=0,n=188;for(a?((e=new Uint8Array(t.byteLength+a)).set(r.subarray(0,a)),e.set(t,a),a=0):e=t;n<e.byteLength;)71!==e[i]||71!==e[n]?(i++,n++):(this.trigger("data",e.subarray(i,n)),i+=188,n+=188);i<e.byteLength&&(r.set(e.subarray(i),0),a=e.byteLength-i)},this.flush=function(){188===a&&71===r[0]&&(this.trigger("data",r),a=0),this.trigger("done")}}).prototype=new X,(Ct=function(){var n,r,a,s;Ct.prototype.init.call(this),(s=this).packetsWaitingForPmt=[],this.programMapTable=void 0,n=function(t,e){var i=0;e.payloadUnitStartIndicator&&(i+=t[i]+1),"pat"===e.type?r(t.subarray(i),e):a(t.subarray(i),e)},r=function(t,e){e.section_number=t[7],e.last_section_number=t[8],s.pmtPid=(31&t[10])<<8|t[11],e.pmtPid=s.pmtPid},a=function(t,e){var i,n;if(1&t[5]){for(s.programMapTable={video:null,audio:null,"timed-metadata":{}},i=3+((15&t[1])<<8|t[2])-4,n=12+((15&t[10])<<8|t[11]);n<i;){var r=t[n],a=(31&t[n+1])<<8|t[n+2];r===ft.H264_STREAM_TYPE&&null===s.programMapTable.video?s.programMapTable.video=a:r===ft.ADTS_STREAM_TYPE&&null===s.programMapTable.audio?s.programMapTable.audio=a:r===ft.METADATA_STREAM_TYPE&&(s.programMapTable["timed-metadata"][a]=r),n+=5+((15&t[n+3])<<8|t[n+4])}e.programMapTable=s.programMapTable}},this.push=function(t){var e={},i=4;if(e.payloadUnitStartIndicator=!!(64&t[1]),e.pid=31&t[1],e.pid<<=8,e.pid|=t[2],1<(48&t[3])>>>4&&(i+=t[i]+1),0===e.pid)e.type="pat",n(t.subarray(i),e),this.trigger("data",e);else if(e.pid===this.pmtPid)for(e.type="pmt",n(t.subarray(i),e),this.trigger("data",e);this.packetsWaitingForPmt.length;)this.processPes_.apply(this,this.packetsWaitingForPmt.shift());else void 0===this.programMapTable?this.packetsWaitingForPmt.push([t,i,e]):this.processPes_(t,i,e)},this.processPes_=function(t,e,i){i.pid===this.programMapTable.video?i.streamType=ft.H264_STREAM_TYPE:i.pid===this.programMapTable.audio?i.streamType=ft.ADTS_STREAM_TYPE:i.streamType=this.programMapTable["timed-metadata"][i.pid],i.type="pes",i.data=t.subarray(e),this.trigger("data",i)}}).prototype=new X,Ct.STREAM_TYPES={h264:27,adts:15},(wt=function(){var d=this,n={data:[],size:0},r={data:[],size:0},a={data:[],size:0},s=function(t,e,i){var n,r,a=new Uint8Array(t.size),s={type:e},o=0,u=0;if(t.data.length&&!(t.size<9)){for(s.trackId=t.data[0].pid,o=0;o<t.data.length;o++)r=t.data[o],a.set(r.data,u),u+=r.data.byteLength;var l,c,h;l=a,(c=s).packetLength=6+(l[4]<<8|l[5]),c.dataAlignmentIndicator=0!=(4&l[6]),192&(h=l[7])&&(c.pts=(14&l[9])<<27|(255&l[10])<<20|(254&l[11])<<12|(255&l[12])<<5|(254&l[13])>>>3,c.pts*=4,c.pts+=(6&l[13])>>>1,c.dts=c.pts,64&h&&(c.dts=(14&l[14])<<27|(255&l[15])<<20|(254&l[16])<<12|(255&l[17])<<5|(254&l[18])>>>3,c.dts*=4,c.dts+=(6&l[18])>>>1)),c.data=l.subarray(9+l[8]),n="video"===e||s.packetLength<=t.size,(i||n)&&(t.size=0,t.data.length=0),n&&d.trigger("data",s)}};wt.prototype.init.call(this),this.push=function(i){({pat:function(){},pes:function(){var t,e;switch(i.streamType){case ft.H264_STREAM_TYPE:case ft.H264_STREAM_TYPE:t=n,e="video";break;case ft.ADTS_STREAM_TYPE:t=r,e="audio";break;case ft.METADATA_STREAM_TYPE:t=a,e="timed-metadata";break;default:return}i.payloadUnitStartIndicator&&s(t,e,!0),t.data.push(i),t.size+=i.data.byteLength},pmt:function(){var t={type:"metadata",tracks:[]},e=i.programMapTable;null!==e.video&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.video,codec:"avc",type:"video"}),null!==e.audio&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.audio,codec:"adts",type:"audio"}),d.trigger("data",t)}})[i.type]()},this.flush=function(){s(n,"video"),s(r,"audio"),s(a,"timed-metadata"),this.trigger("done")}}).prototype=new X;var Lt={PAT_PID:0,MP2T_PACKET_LENGTH:188,TransportPacketStream:kt,TransportParseStream:Ct,ElementaryStream:wt,TimestampRolloverStream:At,CaptionStream:pt.CaptionStream,Cea608Stream:pt.Cea608Stream,MetadataStream:Et};for(var Ot in ft)ft.hasOwnProperty(Ot)&&(Lt[Ot]=ft[Ot]);var Pt,Ut=Lt,It=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];(Pt=function(){var l;Pt.prototype.init.call(this),this.push=function(t){var e,i,n,r,a,s,o=0,u=0;if("audio"===t.type)for(l?(r=l,(l=new Uint8Array(r.byteLength+t.data.byteLength)).set(r),l.set(t.data,r.byteLength)):l=t.data;o+5<l.length;)if(255===l[o]&&240==(246&l[o+1])){if(i=2*(1&~l[o+1]),e=(3&l[o+3])<<11|l[o+4]<<3|(224&l[o+5])>>5,s=9e4*(a=1024*(1+(3&l[o+6])))/It[(60&l[o+2])>>>2],n=o+e,l.byteLength<n)return;if(this.trigger("data",{pts:t.pts+u*s,dts:t.dts+u*s,sampleCount:a,audioobjecttype:1+(l[o+2]>>>6&3),channelcount:(1&l[o+2])<<2|(192&l[o+3])>>>6,samplerate:It[(60&l[o+2])>>>2],samplingfrequencyindex:(60&l[o+2])>>>2,samplesize:16,data:l.subarray(o+7+i,n)}),l.byteLength===n)return void(l=void 0);u++,l=l.subarray(n)}else o++},this.flush=function(){this.trigger("done")}}).prototype=new X;var Dt,xt,Rt,Mt=Pt,Nt=function(n){var r=n.byteLength,a=0,s=0;this.length=function(){return 8*r},this.bitsAvailable=function(){return 8*r+s},this.loadWord=function(){var t=n.byteLength-r,e=new Uint8Array(4),i=Math.min(4,r);if(0===i)throw new Error("no bytes available");e.set(n.subarray(t,t+i)),a=new DataView(e.buffer).getUint32(0),s=8*i,r-=i},this.skipBits=function(t){var e;t<s||(t-=s,t-=8*(e=Math.floor(t/8)),r-=e,this.loadWord()),a<<=t,s-=t},this.readBits=function(t){var e=Math.min(s,t),i=a>>>32-e;return 0<(s-=e)?a<<=e:0<r&&this.loadWord(),0<(e=t-e)?i<<e|this.readBits(e):i},this.skipLeadingZeros=function(){var t;for(t=0;t<s;++t)if(0!=(a&2147483648>>>t))return a<<=t,s-=t,t;return this.loadWord(),t+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var t=this.skipLeadingZeros();return this.readBits(t+1)-1},this.readExpGolomb=function(){var t=this.readUnsignedExpGolomb();return 1&t?1+t>>>1:-1*(t>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUnsignedByte=function(){return this.readBits(8)},this.loadWord()};(xt=function(){var i,n,r=0;xt.prototype.init.call(this),this.push=function(t){var e;for(n?((e=new Uint8Array(n.byteLength+t.data.byteLength)).set(n),e.set(t.data,n.byteLength),n=e):n=t.data;r<n.byteLength-3;r++)if(1===n[r+2]){i=r+5;break}for(;i<n.byteLength;)switch(n[i]){case 0:if(0!==n[i-1]){i+=2;break}if(0!==n[i-2]){i++;break}for(r+3!==i-2&&this.trigger("data",n.subarray(r+3,i-2));1!==n[++i]&&i<n.length;);r=i-2,i+=3;break;case 1:if(0!==n[i-1]||0!==n[i-2]){i+=3;break}this.trigger("data",n.subarray(r+3,i-2)),r=i-2,i+=3;break;default:i+=3}n=n.subarray(r),i-=r,r=0},this.flush=function(){n&&3<n.byteLength&&this.trigger("data",n.subarray(r+3)),n=null,r=0,this.trigger("done")}}).prototype=new X,Rt={100:!0,110:!0,122:!0,244:!0,44:!0,83:!0,86:!0,118:!0,128:!0,138:!0,139:!0,134:!0},(Dt=function(){var i,n,r,a,s,o,_,e=new xt;Dt.prototype.init.call(this),(i=this).push=function(t){"video"===t.type&&(n=t.trackId,r=t.pts,a=t.dts,e.push(t))},e.on("data",function(t){var e={trackId:n,pts:r,dts:a,data:t};switch(31&t[0]){case 5:e.nalUnitType="slice_layer_without_partitioning_rbsp_idr";break;case 6:e.nalUnitType="sei_rbsp",e.escapedRBSP=s(t.subarray(1));break;case 7:e.nalUnitType="seq_parameter_set_rbsp",e.escapedRBSP=s(t.subarray(1)),e.config=o(e.escapedRBSP);break;case 8:e.nalUnitType="pic_parameter_set_rbsp";break;case 9:e.nalUnitType="access_unit_delimiter_rbsp"}i.trigger("data",e)}),e.on("done",function(){i.trigger("done")}),this.flush=function(){e.flush()},_=function(t,e){var i,n=8,r=8;for(i=0;i<t;i++)0!==r&&(r=(n+e.readExpGolomb()+256)%256),n=0===r?n:r},s=function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},o=function(t){var e,i,n,r,a,s,o,u,l,c,h,d,p,f=0,m=0,g=0,y=0,v=1;if(i=(e=new Nt(t)).readUnsignedByte(),r=e.readUnsignedByte(),n=e.readUnsignedByte(),e.skipUnsignedExpGolomb(),Rt[i]&&(3===(a=e.readUnsignedExpGolomb())&&e.skipBits(1),e.skipUnsignedExpGolomb(),e.skipUnsignedExpGolomb(),e.skipBits(1),e.readBoolean()))for(h=3!==a?8:12,p=0;p<h;p++)e.readBoolean()&&_(p<6?16:64,e);if(e.skipUnsignedExpGolomb(),0===(s=e.readUnsignedExpGolomb()))e.readUnsignedExpGolomb();else if(1===s)for(e.skipBits(1),e.skipExpGolomb(),e.skipExpGolomb(),o=e.readUnsignedExpGolomb(),p=0;p<o;p++)e.skipExpGolomb();if(e.skipUnsignedExpGolomb(),e.skipBits(1),u=e.readUnsignedExpGolomb(),l=e.readUnsignedExpGolomb(),0===(c=e.readBits(1))&&e.skipBits(1),e.skipBits(1),e.readBoolean()&&(f=e.readUnsignedExpGolomb(),m=e.readUnsignedExpGolomb(),g=e.readUnsignedExpGolomb(),y=e.readUnsignedExpGolomb()),e.readBoolean()&&e.readBoolean()){switch(e.readUnsignedByte()){case 1:d=[1,1];break;case 2:d=[12,11];break;case 3:d=[10,11];break;case 4:d=[16,11];break;case 5:d=[40,33];break;case 6:d=[24,11];break;case 7:d=[20,11];break;case 8:d=[32,11];break;case 9:d=[80,33];break;case 10:d=[18,11];break;case 11:d=[15,11];break;case 12:d=[64,33];break;case 13:d=[160,99];break;case 14:d=[4,3];break;case 15:d=[3,2];break;case 16:d=[2,1];break;case 255:d=[e.readUnsignedByte()<<8|e.readUnsignedByte(),e.readUnsignedByte()<<8|e.readUnsignedByte()]}d&&(v=d[0]/d[1])}return{profileIdc:i,levelIdc:n,profileCompatibility:r,width:Math.ceil((16*(u+1)-2*f-2*m)*v),height:(2-c)*(l+1)*16-2*g-2*y}}}).prototype=new X;var Bt,jt={H264Stream:Dt,NalByteStream:xt};(Bt=function(){var o=new Uint8Array,u=0;Bt.prototype.init.call(this),this.setTimestamp=function(t){u=t},this.parseId3TagSize=function(t,e){var i=t[e+6]<<21|t[e+7]<<14|t[e+8]<<7|t[e+9];return(16&t[e+5])>>4?i+20:i+10},this.parseAdtsSize=function(t,e){var i=(224&t[e+5])>>5,n=t[e+4]<<3;return 6144&t[e+3]|n|i},this.push=function(t){var e,i,n,r,a=0,s=0;for(o.length?(r=o.length,(o=new Uint8Array(t.byteLength+r)).set(o.subarray(0,r)),o.set(t,r)):o=t;3<=o.length-s;)if(o[s]!=="I".charCodeAt(0)||o[s+1]!=="D".charCodeAt(0)||o[s+2]!=="3".charCodeAt(0))if(!0&o[s]&&240==(240&o[s+1])){if(o.length-s<7)break;if((a=this.parseAdtsSize(o,s))>o.length)break;n={type:"audio",data:o.subarray(s,s+a),pts:u,dts:u},this.trigger("data",n),s+=a}else s++;else{if(o.length-s<10)break;if((a=this.parseId3TagSize(o,s))>o.length)break;i={type:"timed-metadata",data:o.subarray(s,s+a)},this.trigger("data",i),s+=a}e=o.length-s,o=0<e?o.subarray(s):new Uint8Array}}).prototype=new X;var Ft,Ht,Vt,qt,zt,Wt,Gt,Xt,Yt,$t,Kt,Jt,Qt=Bt,Zt=[33,16,5,32,164,27],te=[33,65,108,84,1,2,4,8,168,2,4,8,17,191,252],ee=function(t){for(var e=[];t--;)e.push(0);return e},ie={96000:[Zt,[227,64],ee(154),[56]],88200:[Zt,[231],ee(170),[56]],64000:[Zt,[248,192],ee(240),[56]],48000:[Zt,[255,192],ee(268),[55,148,128],ee(54),[112]],44100:[Zt,[255,192],ee(268),[55,163,128],ee(84),[112]],32000:[Zt,[255,192],ee(268),[55,234],ee(226),[112]],24000:[Zt,[255,192],ee(268),[55,255,128],ee(268),[111,112],ee(126),[224]],16000:[Zt,[255,192],ee(268),[55,255,128],ee(268),[111,255],ee(269),[223,108],ee(195),[1,192]],12000:[te,ee(268),[3,127,248],ee(268),[6,255,240],ee(268),[13,255,224],ee(268),[27,253,128],ee(259),[56]],11025:[te,ee(268),[3,127,248],ee(268),[6,255,240],ee(268),[13,255,224],ee(268),[27,255,192],ee(268),[55,175,128],ee(108),[112]],8000:[te,ee(268),[3,121,16],ee(47),[7]]},ne=(Ft=ie,Object.keys(Ft).reduce(function(t,e){return t[e]=new Uint8Array(Ft[e].reduce(function(t,e){return t.concat(e)},[])),t},{})),re=(Ht=function(t){return 9e4*t},Vt=function(t,e){return t*e},qt=function(t){return t/9e4},zt=function(t,e){return t/e},function(t,e){return Ht(zt(t,e))}),ae=function(t,e){return Vt(qt(t),e)},se=jt.H264Stream,oe=["audioobjecttype","channelcount","samplerate","samplingfrequencyindex","samplesize"],ue=["width","height","profileIdc","levelIdc","profileCompatibility"];$t=function(t){return t[0]==="I".charCodeAt(0)&&t[1]==="D".charCodeAt(0)&&t[2]==="3".charCodeAt(0)},Kt=function(t,e){var i;if(t.length!==e.length)return!1;for(i=0;i<t.length;i++)if(t[i]!==e[i])return!1;return!0},Jt=function(t){var e,i=0;for(e=0;e<t.length;e++)i+=t[e].data.byteLength;return i},(Gt=function(r,a){var s=[],o=0,e=0,l=0,c=1/0;a=a||{},Gt.prototype.init.call(this),this.push=function(e){et(r,e),r&&oe.forEach(function(t){r[t]=e[t]}),s.push(e)},this.setEarliestDts=function(t){e=t-r.timelineStartInfo.baseMediaDecodeTime},this.setVideoBaseMediaDecodeTime=function(t){c=t},this.setAudioAppendStart=function(t){l=t},this.flush=function(){var t,e,i,n;0!==s.length&&(t=this.trimAdtsFramesByEarliestDts_(s),r.baseMediaDecodeTime=tt(r,a.keepOriginalTimestamps),this.prefixWithSilence_(r,t),r.samples=this.generateSampleTable_(t),i=q.mdat(this.concatenateFrameData_(t)),s=[],e=q.moof(o,[r]),n=new Uint8Array(e.byteLength+i.byteLength),o++,n.set(e),n.set(i,e.byteLength),Z(r),this.trigger("data",{track:r,boxes:n})),this.trigger("done","AudioSegmentStream")},this.prefixWithSilence_=function(t,e){var i,n,r,a,s=0,o=0,u=0;if(e.length&&(i=re(t.baseMediaDecodeTime,t.samplerate),n=Math.ceil(9e4/(t.samplerate/1024)),l&&c&&(s=i-Math.max(l,c),u=(o=Math.floor(s/n))*n),!(o<1||45e3<u))){for((r=ne[t.samplerate])||(r=e[0].data),a=0;a<o;a++)e.splice(a,0,{data:r});t.baseMediaDecodeTime-=Math.floor(ae(u,t.samplerate))}},this.trimAdtsFramesByEarliestDts_=function(t){return r.minSegmentDts>=e?t:(r.minSegmentDts=1/0,t.filter(function(t){return t.dts>=e&&(r.minSegmentDts=Math.min(r.minSegmentDts,t.dts),r.minSegmentPts=r.minSegmentDts,!0)}))},this.generateSampleTable_=function(t){var e,i,n=[];for(e=0;e<t.length;e++)i=t[e],n.push({size:i.data.byteLength,duration:1024});return n},this.concatenateFrameData_=function(t){var e,i,n=0,r=new Uint8Array(Jt(t));for(e=0;e<t.length;e++)i=t[e],r.set(i.data,n),n+=i.data.byteLength;return r}}).prototype=new X,(Wt=function(o,u){var e,i,l=0,c=[],h=[];u=u||{},Wt.prototype.init.call(this),delete o.minPTS,this.gopCache_=[],this.push=function(t){et(o,t),"seq_parameter_set_rbsp"!==t.nalUnitType||e||(e=t.config,o.sps=[t.data],ue.forEach(function(t){o[t]=e[t]},this)),"pic_parameter_set_rbsp"!==t.nalUnitType||i||(i=t.data,o.pps=[t.data]),c.push(t)},this.flush=function(){for(var t,e,i,n,r,a;c.length&&"access_unit_delimiter_rbsp"!==c[0].nalUnitType;)c.shift();if(0===c.length)return this.resetStream_(),void this.trigger("done","VideoSegmentStream");if(t=Y(c),(i=$(t))[0][0].keyFrame||((e=this.getGopForFusion_(c[0],o))?(i.unshift(e),i.byteLength+=e.byteLength,i.nalCount+=e.nalCount,i.pts=e.pts,i.dts=e.dts,i.duration+=e.duration):i=K(i)),h.length){var s;if(!(s=u.alignGopsAtEnd?this.alignGopsAtEnd_(i):this.alignGopsAtStart_(i)))return this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.resetStream_(),void this.trigger("done","VideoSegmentStream");Z(o),i=s}et(o,i),o.samples=J(i),r=q.mdat(Q(i)),o.baseMediaDecodeTime=tt(o,u.keepOriginalTimestamps),this.trigger("processedGopsInfo",i.map(function(t){return{pts:t.pts,dts:t.dts,byteLength:t.byteLength}})),this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.trigger("baseMediaDecodeTime",o.baseMediaDecodeTime),this.trigger("timelineStartInfo",o.timelineStartInfo),n=q.moof(l,[o]),a=new Uint8Array(n.byteLength+r.byteLength),l++,a.set(n),a.set(r,n.byteLength),this.trigger("data",{track:o,boxes:a}),this.resetStream_(),this.trigger("done","VideoSegmentStream")},this.resetStream_=function(){Z(o),i=e=void 0},this.getGopForFusion_=function(t){var e,i,n,r,a,s=1/0;for(a=0;a<this.gopCache_.length;a++)n=(r=this.gopCache_[a]).gop,o.pps&&Kt(o.pps[0],r.pps[0])&&o.sps&&Kt(o.sps[0],r.sps[0])&&(n.dts<o.timelineStartInfo.dts||-1e4<=(e=t.dts-n.dts-n.duration)&&e<=45e3&&(!i||e<s)&&(i=r,s=e));return i?i.gop:null},this.alignGopsAtStart_=function(t){var e,i,n,r,a,s,o,u;for(a=t.byteLength,s=t.nalCount,o=t.duration,e=i=0;e<h.length&&i<t.length&&(n=h[e],r=t[i],n.pts!==r.pts);)r.pts>n.pts?e++:(i++,a-=r.byteLength,s-=r.nalCount,o-=r.duration);return 0===i?t:i===t.length?null:((u=t.slice(i)).byteLength=a,u.duration=o,u.nalCount=s,u.pts=u[0].pts,u.dts=u[0].dts,u)},this.alignGopsAtEnd_=function(t){var e,i,n,r,a,s,o;for(e=h.length-1,i=t.length-1,a=null,s=!1;0<=e&&0<=i;){if(n=h[e],r=t[i],n.pts===r.pts){s=!0;break}n.pts>r.pts?e--:(e===h.length-1&&(a=i),i--)}if(!s&&null===a)return null;if(0===(o=s?i:a))return t;var u=t.slice(o),l=u.reduce(function(t,e){return t.byteLength+=e.byteLength,t.duration+=e.duration,t.nalCount+=e.nalCount,t},{byteLength:0,duration:0,nalCount:0});return u.byteLength=l.byteLength,u.duration=l.duration,u.nalCount=l.nalCount,u.pts=u[0].pts,u.dts=u[0].dts,u},this.alignGopsWith=function(t){h=t}}).prototype=new X,(Yt=function(t,e){this.numberOfTracks=0,this.metadataStream=e,"undefined"!=typeof t.remux?this.remuxTracks=!!t.remux:this.remuxTracks=!0,this.pendingTracks=[],this.videoTrack=null,this.pendingBoxes=[],this.pendingCaptions=[],this.pendingMetadata=[],this.pendingBytes=0,this.emittedTracks=0,Yt.prototype.init.call(this),this.push=function(t){return t.text?this.pendingCaptions.push(t):t.frames?this.pendingMetadata.push(t):(this.pendingTracks.push(t.track),this.pendingBoxes.push(t.boxes),this.pendingBytes+=t.boxes.byteLength,"video"===t.track.type&&(this.videoTrack=t.track),void("audio"===t.track.type&&(this.audioTrack=t.track)))}}).prototype=new X,Yt.prototype.flush=function(t){var e,i,n,r,a=0,s={captions:[],captionStreams:{},metadata:[],info:{}},o=0;if(this.pendingTracks.length<this.numberOfTracks){if("VideoSegmentStream"!==t&&"AudioSegmentStream"!==t)return;if(this.remuxTracks)return;if(0===this.pendingTracks.length)return this.emittedTracks++,void(this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0))}for(this.videoTrack?(o=this.videoTrack.timelineStartInfo.pts,ue.forEach(function(t){s.info[t]=this.videoTrack[t]},this)):this.audioTrack&&(o=this.audioTrack.timelineStartInfo.pts,oe.forEach(function(t){s.info[t]=this.audioTrack[t]},this)),1===this.pendingTracks.length?s.type=this.pendingTracks[0].type:s.type="combined",this.emittedTracks+=this.pendingTracks.length,n=q.initSegment(this.pendingTracks),s.initSegment=new Uint8Array(n.byteLength),s.initSegment.set(n),s.data=new Uint8Array(this.pendingBytes),r=0;r<this.pendingBoxes.length;r++)s.data.set(this.pendingBoxes[r],a),a+=this.pendingBoxes[r].byteLength;for(r=0;r<this.pendingCaptions.length;r++)(e=this.pendingCaptions[r]).startTime=e.startPts-o,e.startTime/=9e4,e.endTime=e.endPts-o,e.endTime/=9e4,s.captionStreams[e.stream]=!0,s.captions.push(e);for(r=0;r<this.pendingMetadata.length;r++)(i=this.pendingMetadata[r]).cueTime=i.pts-o,i.cueTime/=9e4,s.metadata.push(i);s.metadata.dispatchType=this.metadataStream.dispatchType,this.pendingTracks.length=0,this.videoTrack=null,this.pendingBoxes.length=0,this.pendingCaptions.length=0,this.pendingBytes=0,this.pendingMetadata.length=0,this.trigger("data",s),this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0)},(Xt=function(n){var r,a,s=this,i=!0;Xt.prototype.init.call(this),n=n||{},this.baseMediaDecodeTime=n.baseMediaDecodeTime||0,this.transmuxPipeline_={},this.setupAacPipeline=function(){var e={};(this.transmuxPipeline_=e).type="aac",e.metadataStream=new Ut.MetadataStream,e.aacStream=new Qt,e.audioTimestampRolloverStream=new Ut.TimestampRolloverStream("audio"),e.timedMetadataTimestampRolloverStream=new Ut.TimestampRolloverStream("timed-metadata"),e.adtsStream=new Mt,e.coalesceStream=new Yt(n,e.metadataStream),e.headOfPipeline=e.aacStream,e.aacStream.pipe(e.audioTimestampRolloverStream).pipe(e.adtsStream),e.aacStream.pipe(e.timedMetadataTimestampRolloverStream).pipe(e.metadataStream).pipe(e.coalesceStream),e.metadataStream.on("timestamp",function(t){e.aacStream.setTimestamp(t.timeStamp)}),e.aacStream.on("data",function(t){"timed-metadata"!==t.type||e.audioSegmentStream||(a=a||{timelineStartInfo:{baseMediaDecodeTime:s.baseMediaDecodeTime},codec:"adts",type:"audio"},e.coalesceStream.numberOfTracks++,e.audioSegmentStream=new Gt(a,n),e.adtsStream.pipe(e.audioSegmentStream).pipe(e.coalesceStream))}),e.coalesceStream.on("data",this.trigger.bind(this,"data")),e.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setupTsPipeline=function(){var i={};(this.transmuxPipeline_=i).type="ts",i.metadataStream=new Ut.MetadataStream,i.packetStream=new Ut.TransportPacketStream,i.parseStream=new Ut.TransportParseStream,i.elementaryStream=new Ut.ElementaryStream,i.videoTimestampRolloverStream=new Ut.TimestampRolloverStream("video"),i.audioTimestampRolloverStream=new Ut.TimestampRolloverStream("audio"),i.timedMetadataTimestampRolloverStream=new Ut.TimestampRolloverStream("timed-metadata"),i.adtsStream=new Mt,i.h264Stream=new se,i.captionStream=new Ut.CaptionStream,i.coalesceStream=new Yt(n,i.metadataStream),i.headOfPipeline=i.packetStream,i.packetStream.pipe(i.parseStream).pipe(i.elementaryStream),i.elementaryStream.pipe(i.videoTimestampRolloverStream).pipe(i.h264Stream),i.elementaryStream.pipe(i.audioTimestampRolloverStream).pipe(i.adtsStream),i.elementaryStream.pipe(i.timedMetadataTimestampRolloverStream).pipe(i.metadataStream).pipe(i.coalesceStream),i.h264Stream.pipe(i.captionStream).pipe(i.coalesceStream),i.elementaryStream.on("data",function(t){var e;if("metadata"===t.type){for(e=t.tracks.length;e--;)r||"video"!==t.tracks[e].type?a||"audio"!==t.tracks[e].type||((a=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime):(r=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime;r&&!i.videoSegmentStream&&(i.coalesceStream.numberOfTracks++,i.videoSegmentStream=new Wt(r,n),i.videoSegmentStream.on("timelineStartInfo",function(t){a&&(a.timelineStartInfo=t,i.audioSegmentStream.setEarliestDts(t.dts))}),i.videoSegmentStream.on("processedGopsInfo",s.trigger.bind(s,"gopInfo")),i.videoSegmentStream.on("baseMediaDecodeTime",function(t){a&&i.audioSegmentStream.setVideoBaseMediaDecodeTime(t)}),i.h264Stream.pipe(i.videoSegmentStream).pipe(i.coalesceStream)),a&&!i.audioSegmentStream&&(i.coalesceStream.numberOfTracks++,i.audioSegmentStream=new Gt(a,n),i.adtsStream.pipe(i.audioSegmentStream).pipe(i.coalesceStream))}}),i.coalesceStream.on("data",this.trigger.bind(this,"data")),i.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setBaseMediaDecodeTime=function(t){var e=this.transmuxPipeline_;this.baseMediaDecodeTime=t,a&&(a.timelineStartInfo.dts=void 0,a.timelineStartInfo.pts=void 0,Z(a),a.timelineStartInfo.baseMediaDecodeTime=t,e.audioTimestampRolloverStream&&e.audioTimestampRolloverStream.discontinuity()),r&&(e.videoSegmentStream&&(e.videoSegmentStream.gopCache_=[],e.videoTimestampRolloverStream.discontinuity()),r.timelineStartInfo.dts=void 0,r.timelineStartInfo.pts=void 0,Z(r),e.captionStream.reset(),r.timelineStartInfo.baseMediaDecodeTime=t),e.timedMetadataTimestampRolloverStream&&e.timedMetadataTimestampRolloverStream.discontinuity()},this.setAudioAppendStart=function(t){a&&this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(t)},this.alignGopsWith=function(t){r&&this.transmuxPipeline_.videoSegmentStream&&this.transmuxPipeline_.videoSegmentStream.alignGopsWith(t)},this.push=function(t){if(i){var e=$t(t);e&&"aac"!==this.transmuxPipeline_.type?this.setupAacPipeline():e||"ts"===this.transmuxPipeline_.type||this.setupTsPipeline(),i=!1}this.transmuxPipeline_.headOfPipeline.push(t)},this.flush=function(){i=!0,this.transmuxPipeline_.headOfPipeline.flush()},this.resetCaptions=function(){this.transmuxPipeline_.captionStream&&this.transmuxPipeline_.captionStream.reset()}}).prototype=new X;var le,ce,he={Transmuxer:Xt,VideoSegmentStream:Wt,AudioSegmentStream:Gt,AUDIO_PROPERTIES:oe,VIDEO_PROPERTIES:ue},de=W.parseType,pe=function(t){return new Date(1e3*t-20828448e5)},fe=function(t){return{isLeading:(12&t[0])>>>2,dependsOn:3&t[0],isDependedOn:(192&t[1])>>>6,hasRedundancy:(48&t[1])>>>4,paddingValue:(14&t[1])>>>1,isNonSyncSample:1&t[1],degradationPriority:t[2]<<8|t[3]}},me={avc1:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{dataReferenceIndex:e.getUint16(6),width:e.getUint16(24),height:e.getUint16(26),horizresolution:e.getUint16(28)+e.getUint16(30)/16,vertresolution:e.getUint16(32)+e.getUint16(34)/16,frameCount:e.getUint16(40),depth:e.getUint16(74),config:le(t.subarray(78,t.byteLength))}},avcC:function(t){var e,i,n,r,a=new DataView(t.buffer,t.byteOffset,t.byteLength),s={configurationVersion:t[0],avcProfileIndication:t[1],profileCompatibility:t[2],avcLevelIndication:t[3],lengthSizeMinusOne:3&t[4],sps:[],pps:[]},o=31&t[5];for(n=6,r=0;r<o;r++)i=a.getUint16(n),n+=2,s.sps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;for(e=t[n],n++,r=0;r<e;r++)i=a.getUint16(n),n+=2,s.pps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;return s},btrt:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{bufferSizeDB:e.getUint32(0),maxBitrate:e.getUint32(4),avgBitrate:e.getUint32(8)}},esds:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),esId:t[6]<<8|t[7],streamPriority:31&t[8],decoderConfig:{objectProfileIndication:t[11],streamType:t[12]>>>2&63,bufferSize:t[13]<<16|t[14]<<8|t[15],maxBitrate:t[16]<<24|t[17]<<16|t[18]<<8|t[19],avgBitrate:t[20]<<24|t[21]<<16|t[22]<<8|t[23],decoderConfigDescriptor:{tag:t[24],length:t[25],audioObjectType:t[26]>>>3&31,samplingFrequencyIndex:(7&t[26])<<1|t[27]>>>7&1,channelConfiguration:t[27]>>>3&15}}}},ftyp:function(t){for(var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={majorBrand:de(t.subarray(0,4)),minorVersion:e.getUint32(4),compatibleBrands:[]},n=8;n<t.byteLength;)i.compatibleBrands.push(de(t.subarray(n,n+4))),n+=4;return i},dinf:function(t){return{boxes:le(t)}},dref:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),dataReferences:le(t.subarray(8))}},hdlr:function(t){var e={version:new DataView(t.buffer,t.byteOffset,t.byteLength).getUint8(0),flags:new Uint8Array(t.subarray(1,4)),handlerType:de(t.subarray(8,12)),name:""},i=8;for(i=24;i<t.byteLength;i++){if(0===t[i]){i++;break}e.name+=String.fromCharCode(t[i])}return e.name=decodeURIComponent(escape(e.name)),e},mdat:function(t){return{byteLength:t.byteLength,nals:function(t){var e,i,n=new DataView(t.buffer,t.byteOffset,t.byteLength),r=[];for(e=0;e+4<t.length;e+=i)if(i=n.getUint32(e),e+=4,i<=0)r.push("<span style='color:red;'>MALFORMED DATA</span>");else switch(31&t[e]){case 1:r.push("slice_layer_without_partitioning_rbsp");break;case 5:r.push("slice_layer_without_partitioning_rbsp_idr");break;case 6:r.push("sei_rbsp");break;case 7:r.push("seq_parameter_set_rbsp");break;case 8:r.push("pic_parameter_set_rbsp");break;case 9:r.push("access_unit_delimiter_rbsp");break;default:r.push("UNKNOWN NAL - "+t[e]&31)}return r}(t)}},mdhd:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n=4,r={version:i.getUint8(0),flags:new Uint8Array(t.subarray(1,4)),language:""};return 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Attempting to use the default audio codec (mp4a.40.2)"),a.audioProfile=Ml.audioProfile));var h={};a.videoCodec&&(h.video=""+a.videoCodec+a.videoObjectTypeIndicator),a.audioProfile&&(h.audio="mp4a.40."+a.audioProfile);var d=jl("audio",r,[h.audio]),p=jl("video",r,[h.video]),f=jl("video",r,[h.video,h.audio]);return u?!o&&h.video?[p,d]:o||h.video?[f,d]:[d,d]:h.video?[f]:[d]},Hl=function(t){return/mp4a\.\d+.\d+/i.test(t)},Vl=function(t){return/avc1\.[\da-f]+/i.test(t)},ql=function(t,e,i){var n=null,r=null,a=0,s=[],o=[];if(!t&&!e)return Nr.createTimeRange();if(!t)return e.buffered;if(!e)return t.buffered;if(i)return t.buffered;if(0===t.buffered.length&&0===e.buffered.length)return Nr.createTimeRange();for(var u=t.buffered,l=e.buffered,c=u.length;c--;)s.push({time:u.start(c),type:"start"}),s.push({time:u.end(c),type:"end"});for(c=l.length;c--;)s.push({time:l.start(c),type:"start"}),s.push({time:l.end(c),type:"end"});for(s.sort(function(t,e){return t.time-e.time}),c=0;c<s.length;c++)"start"===s[c].type?2===++a&&(n=s[c].time):"end"===s[c].type&&1===--a&&(r=s[c].time),null!==n&&null!==r&&(o.push([n,r]),r=n=null);return Nr.createTimeRanges(o)},zl=function(t){function r(t,e){Pu(this,r);var i=Du(this,(r.__proto__||Object.getPrototypeOf(r)).call(this,Nr.EventTarget));i.timestampOffset_=0,i.pendingBuffers_=[],i.bufferUpdating_=!1,i.mediaSource_=t,i.codecs_=e,i.audioCodec_=null,i.videoCodec_=null,i.audioDisabled_=!1,i.appendAudioInitSegment_=!0,i.gopBuffer_=[],i.timeMapping_=0,i.safeAppend_=11<=Nr.browser.IE_VERSION;var n={remux:!1,alignGopsAtEnd:i.safeAppend_};return i.codecs_.forEach(function(t){Hl(t)?i.audioCodec_=t:Vl(t)&&(i.videoCodec_=t)}),i.transmuxer_=new Rl,i.transmuxer_.postMessage({action:"init",options:n}),i.transmuxer_.onmessage=function(t){return"data"===t.data.action?i.data_(t):"done"===t.data.action?i.done_(t):"gopInfo"===t.data.action?i.appendGopInfo_(t):void 0},Object.defineProperty(i,"timestampOffset",{get:function(){return this.timestampOffset_},set:function(t){"number"==typeof t&&0<=t&&(this.timestampOffset_=t,this.appendAudioInitSegment_=!0,this.gopBuffer_.length=0,this.timeMapping_=0,this.transmuxer_.postMessage({action:"setTimestampOffset",timestampOffset:t}))}}),Object.defineProperty(i,"appendWindowStart",{get:function(){return(this.videoBuffer_||this.audioBuffer_).appendWindowStart},set:function(t){this.videoBuffer_&&(this.videoBuffer_.appendWindowStart=t),this.audioBuffer_&&(this.audioBuffer_.appendWindowStart=t)}}),Object.defineProperty(i,"updating",{get:function(){return!!(this.bufferUpdating_||!this.audioDisabled_&&this.audioBuffer_&&this.audioBuffer_.updating||this.videoBuffer_&&this.videoBuffer_.updating)}}),Object.defineProperty(i,"buffered",{get:function(){return ql(this.videoBuffer_,this.audioBuffer_,this.audioDisabled_)}}),i}return Iu(r,Nr.EventTarget),Uu(r,[{key:"data_",value:function(t){var e=t.data.segment;e.data=new Uint8Array(e.data,t.data.byteOffset,t.data.byteLength),e.initSegment=new Uint8Array(e.initSegment.data,e.initSegment.byteOffset,e.initSegment.byteLength),function(t,e,i){var n=e.player_;if(i.captions&&i.captions.length)for(var r in t.inbandTextTracks_||(t.inbandTextTracks_={}),i.captionStreams)if(!t.inbandTextTracks_[r]){n.tech_.trigger({type:"usage",name:"hls-608"});var a=n.textTracks().getTrackById(r);t.inbandTextTracks_[r]=a||n.addRemoteTextTrack({kind:"captions",id:r,label:r},!1).track}i.metadata&&i.metadata.length&&!t.metadataTrack_&&(t.metadataTrack_=n.addRemoteTextTrack({kind:"metadata",label:"Timed Metadata"},!1).track,t.metadataTrack_.inBandMetadataTrackDispatchType=i.metadata.dispatchType)}(this,this.mediaSource_,e),this.pendingBuffers_.push(e)}},{key:"done_",value:function(t){"closed"!==this.mediaSource_.readyState?this.processPendingSegments_():this.pendingBuffers_.length=0}},{key:"createRealSourceBuffers_",value:function(){var n=this,r=["audio","video"];r.forEach(function(e){if(n[e+"Codec_"]&&!n[e+"Buffer_"]){var i=null;if(n.mediaSource_[e+"Buffer_"])(i=n.mediaSource_[e+"Buffer_"]).updating=!1;else{var t=e+'/mp4;codecs="'+n[e+"Codec_"]+'"';i=function(t,e){var i=t.addSourceBuffer(e),n=Object.create(null);n.updating=!1,n.realBuffer_=i;var r=function(e){"function"==typeof i[e]?n[e]=function(){return i[e].apply(i,arguments)}:"undefined"==typeof n[e]&&Object.defineProperty(n,e,{get:function(){return i[e]},set:function(t){return i[e]=t}})};for(var a in i)r(a);return n}(n.mediaSource_.nativeMediaSource_,t),n.mediaSource_[e+"Buffer_"]=i}n[e+"Buffer_"]=i,["update","updatestart","updateend"].forEach(function(t){i.addEventListener(t,function(){if("audio"!==e||!n.audioDisabled_)return"updateend"===t&&(n[e+"Buffer_"].updating=!1),r.every(function(t){return!("audio"!==t||!n.audioDisabled_)||(e===t||!n[t+"Buffer_"]||!n[t+"Buffer_"].updating)})?n.trigger(t):void 0})})}})}},{key:"appendBuffer",value:function(t){if(this.bufferUpdating_=!0,this.audioBuffer_&&this.audioBuffer_.buffered.length){var e=this.audioBuffer_.buffered;this.transmuxer_.postMessage({action:"setAudioAppendStart",appendStart:e.end(e.length-1)})}this.videoBuffer_&&this.transmuxer_.postMessage({action:"alignGopsWith",gopsToAlignWith:function(t,e,i){if("undefined"==typeof e||null===e||!t.length)return[];var n=Math.ceil(9e4*(e-i+3)),r=void 0;for(r=0;r<t.length&&!(t[r].pts>n);r++);return t.slice(r)}(this.gopBuffer_,this.mediaSource_.player_?this.mediaSource_.player_.currentTime():null,this.timeMapping_)}),this.transmuxer_.postMessage({action:"push",data:t.buffer,byteOffset:t.byteOffset,byteLength:t.byteLength},[t.buffer]),this.transmuxer_.postMessage({action:"flush"})}},{key:"appendGopInfo_",value:function(t){this.gopBuffer_=function(t,e,i){if(!e.length)return t;if(i)return e.slice();for(var n=e[0].pts,r=0;r<t.length&&!(t[r].pts>=n);r++);return t.slice(0,r).concat(e)}(this.gopBuffer_,t.data.gopInfo,this.safeAppend_)}},{key:"remove",value:function(t,e){if(this.videoBuffer_&&(this.videoBuffer_.updating=!0,this.videoBuffer_.remove(t,e),this.gopBuffer_=function(t,e,i,n){for(var r=Math.ceil(9e4*(e-n)),a=Math.ceil(9e4*(i-n)),s=t.slice(),o=t.length;o--&&!(t[o].pts<=a););if(-1===o)return s;for(var u=o+1;u--&&!(t[u].pts<=r););return u=Math.max(u,0),s.splice(u,o-u+1),s}(this.gopBuffer_,t,e,this.timeMapping_)),!this.audioDisabled_&&this.audioBuffer_&&(this.audioBuffer_.updating=!0,this.audioBuffer_.remove(t,e)),Tl(t,e,this.metadataTrack_),this.inbandTextTracks_)for(var i in this.inbandTextTracks_)Tl(t,e,this.inbandTextTracks_[i])}},{key:"processPendingSegments_",value:function(){var t={video:{segments:[],bytes:0},audio:{segments:[],bytes:0},captions:[],metadata:[]};t=this.pendingBuffers_.reduce(function(t,e){var i=e.type,n=e.data,r=e.initSegment;return t[i].segments.push(n),t[i].bytes+=n.byteLength,t[i].initSegment=r,e.captions&&(t.captions=t.captions.concat(e.captions)),e.info&&(t[i].info=e.info),e.metadata&&(t.metadata=t.metadata.concat(e.metadata)),t},t),this.videoBuffer_||this.audioBuffer_||(0===t.video.bytes&&(this.videoCodec_=null),0===t.audio.bytes&&(this.audioCodec_=null),this.createRealSourceBuffers_()),t.audio.info&&this.mediaSource_.trigger({type:"audioinfo",info:t.audio.info}),t.video.info&&this.mediaSource_.trigger({type:"videoinfo",info:t.video.info}),this.appendAudioInitSegment_&&(!this.audioDisabled_&&this.audioBuffer_&&(t.audio.segments.unshift(t.audio.initSegment),t.audio.bytes+=t.audio.initSegment.byteLength),this.appendAudioInitSegment_=!1);var e=!1;this.videoBuffer_&&t.video.bytes?(t.video.segments.unshift(t.video.initSegment),t.video.bytes+=t.video.initSegment.byteLength,this.concatAndAppendSegments_(t.video,this.videoBuffer_),kl(this,t.captions,t.metadata)):!this.videoBuffer_||!this.audioDisabled_&&this.audioBuffer_||(e=!0),!this.audioDisabled_&&this.audioBuffer_&&this.concatAndAppendSegments_(t.audio,this.audioBuffer_),this.pendingBuffers_.length=0,e&&this.trigger("updateend"),this.bufferUpdating_=!1}},{key:"concatAndAppendSegments_",value:function(t,e){var i=0,n=void 0;if(t.bytes){n=new Uint8Array(t.bytes),t.segments.forEach(function(t){n.set(t,i),i+=t.byteLength});try{e.updating=!0,e.appendBuffer(n)}catch(t){this.mediaSource_.player_&&this.mediaSource_.player_.error({code:-3,type:"APPEND_BUFFER_ERR",message:t.message,originalError:t})}}}},{key:"abort",value:function(){this.videoBuffer_&&this.videoBuffer_.abort(),!this.audioDisabled_&&this.audioBuffer_&&this.audioBuffer_.abort(),this.transmuxer_&&this.transmuxer_.postMessage({action:"reset"}),this.pendingBuffers_.length=0,this.bufferUpdating_=!1}}]),r}(),Wl=function(t){function e(){Pu(this,e);var a=Du(this,(e.__proto__||Object.getPrototypeOf(e)).call(this)),t=void 0;for(t in a.nativeMediaSource_=new g.MediaSource,a.nativeMediaSource_)t in e.prototype||"function"!=typeof a.nativeMediaSource_[t]||(a[t]=a.nativeMediaSource_[t].bind(a.nativeMediaSource_));return a.duration_=NaN,Object.defineProperty(a,"duration",{get:function(){return this.duration_===1/0?this.duration_:this.nativeMediaSource_.duration},set:function(t){(this.duration_=t)===1/0||(this.nativeMediaSource_.duration=t)}}),Object.defineProperty(a,"seekable",{get:function(){return this.duration_===1/0?Nr.createTimeRanges([[0,this.nativeMediaSource_.duration]]):this.nativeMediaSource_.seekable}}),Object.defineProperty(a,"readyState",{get:function(){return this.nativeMediaSource_.readyState}}),Object.defineProperty(a,"activeSourceBuffers",{get:function(){return this.activeSourceBuffers_}}),a.sourceBuffers=[],a.activeSourceBuffers_=[],a.updateActiveSourceBuffers_=function(){if(a.activeSourceBuffers_.length=0,1===a.sourceBuffers.length){var t=a.sourceBuffers[0];return t.appendAudioInitSegment_=!0,t.audioDisabled_=!t.audioCodec_,void a.activeSourceBuffers_.push(t)}for(var i=!1,n=!0,e=0;e<a.player_.audioTracks().length;e++){var r=a.player_.audioTracks()[e];if(r.enabled&&"main"!==r.kind){n=!(i=!0);break}}a.sourceBuffers.forEach(function(t,e){if(t.appendAudioInitSegment_=!0,t.videoCodec_&&t.audioCodec_)t.audioDisabled_=i;else if(t.videoCodec_&&!t.audioCodec_)t.audioDisabled_=!0,n=!1;else if(!t.videoCodec_&&t.audioCodec_&&(t.audioDisabled_=e?n:!n,t.audioDisabled_))return;a.activeSourceBuffers_.push(t)})},a.onPlayerMediachange_=function(){a.sourceBuffers.forEach(function(t){t.appendAudioInitSegment_=!0})},a.onHlsReset_=function(){a.sourceBuffers.forEach(function(t){t.transmuxer_&&t.transmuxer_.postMessage({action:"resetCaptions"})})},a.onHlsSegmentTimeMapping_=function(e){a.sourceBuffers.forEach(function(t){return t.timeMapping_=e.mapping})},["sourceopen","sourceclose","sourceended"].forEach(function(t){this.nativeMediaSource_.addEventListener(t,this.trigger.bind(this))},a),a.on("sourceopen",function(t){var e=p.querySelector('[src="'+a.url_+'"]');e&&(a.player_=Nr(e.parentNode),a.player_.tech_.on("hls-reset",a.onHlsReset_),a.player_.tech_.on("hls-segment-time-mapping",a.onHlsSegmentTimeMapping_),a.player_.audioTracks&&a.player_.audioTracks()&&(a.player_.audioTracks().on("change",a.updateActiveSourceBuffers_),a.player_.audioTracks().on("addtrack",a.updateActiveSourceBuffers_),a.player_.audioTracks().on("removetrack",a.updateActiveSourceBuffers_)),a.player_.on("mediachange",a.onPlayerMediachange_))}),a.on("sourceended",function(t){for(var e=Sl(a.duration),i=0;i<a.sourceBuffers.length;i++){var n=a.sourceBuffers[i],r=n.metadataTrack_&&n.metadataTrack_.cues;r&&r.length&&(r[r.length-1].endTime=e)}}),a.on("sourceclose",function(t){this.sourceBuffers.forEach(function(t){t.transmuxer_&&t.transmuxer_.terminate()}),this.sourceBuffers.length=0,this.player_&&(this.player_.audioTracks&&this.player_.audioTracks()&&(this.player_.audioTracks().off("change",this.updateActiveSourceBuffers_),this.player_.audioTracks().off("addtrack",this.updateActiveSourceBuffers_),this.player_.audioTracks().off("removetrack",this.updateActiveSourceBuffers_)),this.player_.el_&&(this.player_.off("mediachange",this.onPlayerMediachange_),this.player_.tech_.off("hls-reset",this.onHlsReset_),this.player_.tech_.off("hls-segment-time-mapping",this.onHlsSegmentTimeMapping_)))}),a}return Iu(e,Nr.EventTarget),Uu(e,[{key:"addSeekableRange_",value:function(t,e){var i=void 0;if(this.duration!==1/0)throw(i=new Error("MediaSource.addSeekableRange() can only be invoked when the duration is Infinity")).name="InvalidStateError",i.code=11,i;(e>this.nativeMediaSource_.duration||isNaN(this.nativeMediaSource_.duration))&&(this.nativeMediaSource_.duration=e)}},{key:"addSourceBuffer",value:function(t){var r,e,i=void 0,n=(r={type:"",parameters:{}},e=t.trim().split(";"),r.type=e.shift().trim(),e.forEach(function(t){var e=t.trim().split("=");if(1<e.length){var i=e[0].replace(/"/g,"").trim(),n=e[1].replace(/"/g,"").trim();r.parameters[i]=n}}),r);if(/^(video|audio)\/mp2t$/i.test(n.type)){var a=[];n.parameters&&n.parameters.codecs&&(a=n.parameters.codecs.split(","),a=(a=Nl(a)).filter(function(t){return Hl(t)||Vl(t)})),0===a.length&&(a=["avc1.4d400d","mp4a.40.2"]),i=new zl(this,a),0!==this.sourceBuffers.length&&(this.sourceBuffers[0].createRealSourceBuffers_(),i.createRealSourceBuffers_(),this.sourceBuffers[0].audioDisabled_=!0)}else i=this.nativeMediaSource_.addSourceBuffer(t);return this.sourceBuffers.push(i),i}}]),e}(),Gl=0;Nr.mediaSources={};var Xl=function(t,e){var i=Nr.mediaSources[t];if(!i)throw new Error("Media Source not found (Video.js)");i.trigger({type:"sourceopen",swfId:e})},Yl=function(){return!!g.MediaSource&&!!g.MediaSource.isTypeSupported&&g.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"')},$l=function(){if(this.MediaSource={open:Xl,supportsNativeMediaSources:Yl},Yl())return new Wl;throw new Error("Cannot use create a virtual MediaSource for this video")};$l.open=Xl,$l.supportsNativeMediaSources=Yl;var Kl={createObjectURL:function(t){var e=void 0;return t instanceof Wl?(e=g.URL.createObjectURL(t.nativeMediaSource_),t.url_=e):t instanceof Wl?(e="blob:vjs-media-source/"+Gl,Gl++,Nr.mediaSources[e]=t,e):(e=g.URL.createObjectURL(t),t.url_=e)}};Nr.MediaSource=$l,Nr.URL=Kl;var Jl=Nr.EventTarget,Ql=Nr.mergeOptions,Zl=function(t,e){for(var s=Ql(t,{duration:e.duration,minimumUpdatePeriod:e.minimumUpdatePeriod}),i=0;i<e.playlists.length;i++){var n=ju(s,e.playlists[i]);n&&(s=n)}return Bu(e,function(t,e,i,n){if(t.playlists&&t.playlists.length){var r=t.playlists[0].uri,a=ju(s,t.playlists[0]);a&&((s=a).mediaGroups[e][i][n].playlists[0]=s.playlists[r])}}),s},tc=function(t){function a(t,e,i,n){Pu(this,a);var r=Du(this,(a.__proto__||Object.getPrototypeOf(a)).call(this));if(r.hls_=e,r.withCredentials=i,!t)throw new Error("A non-empty playlist URL or playlist is required");return r.on("minimumUpdatePeriod",function(){r.refreshXml_()}),r.on("mediaupdatetimeout",function(){r.refreshMedia_()}),"string"==typeof t?(r.srcUrl=t,r.state="HAVE_NOTHING",Du(r)):(r.masterPlaylistLoader_=n,r.state="HAVE_METADATA",r.started=!0,r.media(t),g.setTimeout(function(){r.trigger("loadedmetadata")},0),r)}return Iu(a,Jl),Uu(a,[{key:"dispose",value:function(){this.stopRequest(),g.clearTimeout(this.mediaUpdateTimeout)}},{key:"stopRequest",value:function(){if(this.request){var t=this.request;this.request=null,t.onreadystatechange=null,t.abort()}}},{key:"media",value:function(t){if(!t)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);var e=this.state;if("string"==typeof t){if(!this.master.playlists[t])throw new Error("Unknown playlist URI: "+t);t=this.master.playlists[t]}var i=!this.media_||t.uri!==this.media_.uri;this.state="HAVE_METADATA",i&&(this.media_&&this.trigger("mediachanging"),this.media_=t,this.refreshMedia_(),"HAVE_MASTER"!==e&&this.trigger("mediachange"))}},{key:"pause",value:function(){this.stopRequest(),"HAVE_NOTHING"===this.state&&(this.started=!1)}},{key:"load",value:function(){this.started?this.trigger("loadedplaylist"):this.start()}},{key:"parseMasterXml",value:function(){var a=_s(this.masterXml_,{manifestUri:this.srcUrl,clientOffset:this.clientOffset_});a.uri=this.srcUrl;for(var t=0;t<a.playlists.length;t++){var e="placeholder-uri-"+t;a.playlists[t].uri=e,a.playlists[e]=a.playlists[t]}return Bu(a,function(t,e,i,n){if(t.playlists&&t.playlists.length){var r="placeholder-uri-"+e+"-"+i+"-"+n;t.playlists[0].uri=r,a.playlists[r]=t.playlists[0]}}),Fu(a),Hu(a),a}},{key:"start",value:function(){var i=this;this.started=!0,this.request=this.hls_.xhr({uri:this.srcUrl,withCredentials:this.withCredentials},function(t,e){if(i.request){if(i.request=null,t)return i.error={status:e.status,message:"DASH playlist request error at URL: "+i.srcUrl,responseText:e.responseText,code:2},"HAVE_NOTHING"===i.state&&(i.started=!1),i.trigger("error");i.masterXml_=e.responseText,e.responseHeaders&&e.responseHeaders.date?i.masterLoaded_=Date.parse(e.responseHeaders.date):i.masterLoaded_=Date.now(),i.syncClientServerClock_(i.onClientServerClockSync_.bind(i))}})}},{key:"syncClientServerClock_",value:function(n){var r=this,a=bs(this.masterXml_);return null===a?(this.clientOffset_=this.masterLoaded_-Date.now(),n()):"DIRECT"===a.method?(this.clientOffset_=a.value-Date.now(),n()):void(this.request=this.hls_.xhr({uri:Ou(this.srcUrl,a.value),method:a.method,withCredentials:this.withCredentials},function(t,e){if(r.request){if(t)return r.clientOffset_=r.masterLoaded_-Date.now(),n();var i=void 0;i="HEAD"===a.method?e.responseHeaders&&e.responseHeaders.date?Date.parse(e.responseHeaders.date):r.masterLoaded_:Date.parse(e.responseText),r.clientOffset_=i-Date.now(),n()}}))}},{key:"onClientServerClockSync_",value:function(){var t=this;this.master=this.parseMasterXml(),this.state="HAVE_MASTER",this.trigger("loadedplaylist"),this.media_||this.media(this.master.playlists[0]),g.setTimeout(function(){t.trigger("loadedmetadata")},0),this.master.minimumUpdatePeriod&&g.setTimeout(function(){t.trigger("minimumUpdatePeriod")},this.master.minimumUpdatePeriod)}},{key:"refreshXml_",value:function(){var n=this;this.request=this.hls_.xhr({uri:this.srcUrl,withCredentials:this.withCredentials},function(t,e){if(n.request){if(n.request=null,t)return n.error={status:e.status,message:"DASH playlist request error at URL: "+n.srcUrl,responseText:e.responseText,code:2},"HAVE_NOTHING"===n.state&&(n.started=!1),n.trigger("error");n.masterXml_=e.responseText;var i=n.parseMasterXml();n.master=Zl(n.master,i),g.setTimeout(function(){n.trigger("minimumUpdatePeriod")},n.master.minimumUpdatePeriod)}})}},{key:"refreshMedia_",value:function(){var t=this,e=void 0,i=void 0;this.masterPlaylistLoader_?(e=this.masterPlaylistLoader_.master,i=this.masterPlaylistLoader_.parseMasterXml()):(e=this.master,i=this.parseMasterXml());var n=Zl(e,i);n?(this.masterPlaylistLoader_?this.masterPlaylistLoader_.master=n:this.master=n,this.media_=n.playlists[this.media_.uri]):this.trigger("playlistunchanged"),this.media().endList||(this.mediaUpdateTimeout=g.setTimeout(function(){t.trigger("mediaupdatetimeout")},Vu(this.media(),!!n))),this.trigger("loadedplaylist")}}]),a}(),ec=function(t){return Nr.log.debug?Nr.log.debug.bind(Nr,"VHS:",t+" >"):function(){}};function ic(){}var nc=function(){function r(t,e,i,n){Pu(this,r),this.callbacks_=[],this.pendingCallback_=null,this.timestampOffset_=0,this.mediaSource=t,this.processedAppend_=!1,this.type_=i,this.mimeType_=e,this.logger_=ec("SourceUpdater["+i+"]["+e+"]"),"closed"===t.readyState?t.addEventListener("sourceopen",this.createSourceBuffer_.bind(this,e,n)):this.createSourceBuffer_(e,n)}return Uu(r,[{key:"createSourceBuffer_",value:function(t,e){var i=this;this.sourceBuffer_=this.mediaSource.addSourceBuffer(t),this.logger_("created SourceBuffer"),e&&(e.trigger("sourcebufferadded"),this.mediaSource.sourceBuffers.length<2)?e.on("sourcebufferadded",function(){i.start_()}):this.start_()}},{key:"start_",value:function(){var e=this;this.started_=!0,this.onUpdateendCallback_=function(){var t=e.pendingCallback_;e.pendingCallback_=null,e.logger_("buffered ["+_l(e.buffered())+"]"),t&&t(),e.runCallback_()},this.sourceBuffer_.addEventListener("updateend",this.onUpdateendCallback_),this.runCallback_()}},{key:"abort",value:function(t){var e=this;this.processedAppend_&&this.queueCallback_(function(){e.sourceBuffer_.abort()},t)}},{key:"appendBuffer",value:function(t,e){var i=this;this.processedAppend_=!0,this.queueCallback_(function(){i.sourceBuffer_.appendBuffer(t)},e)}},{key:"buffered",value:function(){return this.sourceBuffer_?this.sourceBuffer_.buffered:Nr.createTimeRanges()}},{key:"remove",value:function(t,e){var i=this,n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:ic;this.processedAppend_&&this.queueCallback_(function(){i.logger_("remove ["+t+" => "+e+"]"),i.sourceBuffer_.remove(t,e)},n)}},{key:"updating",value:function(){return!this.sourceBuffer_||this.sourceBuffer_.updating||this.pendingCallback_}},{key:"timestampOffset",value:function(t){var e=this;return"undefined"!=typeof t&&(this.queueCallback_(function(){e.sourceBuffer_.timestampOffset=t}),this.timestampOffset_=t),this.timestampOffset_}},{key:"queueCallback_",value:function(t,e){this.callbacks_.push([t.bind(this),e]),this.runCallback_()}},{key:"runCallback_",value:function(){var t=void 0;!this.updating()&&this.callbacks_.length&&this.started_&&(t=this.callbacks_.shift(),this.pendingCallback_=t[1],t[0]())}},{key:"dispose",value:function(){this.sourceBuffer_.removeEventListener("updateend",this.onUpdateendCallback_),this.sourceBuffer_&&"open"===this.mediaSource.readyState&&this.sourceBuffer_.abort()}}]),r}(),rc={GOAL_BUFFER_LENGTH:30,MAX_GOAL_BUFFER_LENGTH:60,GOAL_BUFFER_LENGTH_RATE:1,BANDWIDTH_VARIANCE:1.2,BUFFER_LOW_WATER_LINE:0,MAX_BUFFER_LOW_WATER_LINE:30,BUFFER_LOW_WATER_LINE_RATE:1},ac=2,sc=-101,oc=-102,uc=function(t){var e,i,n={};return t.byterange&&(n.Range=(e=t.byterange,i=e.offset+e.length-1,"bytes="+e.offset+"-"+i)),n},lc=function(t){t.forEach(function(t){t.abort()})},cc=function(t,e){return e.timedout?{status:e.status,message:"HLS request timed-out at URL: "+e.uri,code:sc,xhr:e}:e.aborted?{status:e.status,message:"HLS request aborted at URL: "+e.uri,code:oc,xhr:e}:t?{status:e.status,message:"HLS request errored at URL: "+e.uri,code:ac,xhr:e}:null},hc=function(s,o,u){var l=[],c=0;return function(t,e){if(t&&(lc(s),l.push(t)),(c+=1)===s.length){if(e.endOfAllRequests=Date.now(),0<l.length){var i=l.reduce(function(t,e){return e.code>t.code?e:t});return u(i,e)}return e.encryptedBytes?(r=e,a=u,(n=o).addEventListener("message",function t(e){if(e.data.source===r.requestId){n.removeEventListener("message",t);var i=e.data.decrypted;return r.bytes=new Uint8Array(i.bytes,i.byteOffset,i.byteLength),a(null,r)}}),void n.postMessage(hl({source:r.requestId,encrypted:r.encryptedBytes,key:r.key.bytes,iv:r.key.iv}),[r.encryptedBytes.buffer,r.key.bytes.buffer])):u(null,e)}var n,r,a}},dc=function(r,a){return function(t){var e,i,n;return r.stats=Nr.mergeOptions(r.stats,(i=(e=t).target,(n={bandwidth:1/0,bytesReceived:0,roundTripTime:Date.now()-i.requestTime||0}).bytesReceived=e.loaded,n.bandwidth=Math.floor(n.bytesReceived/n.roundTripTime*8*1e3),n)),!r.stats.firstBytesReceivedAt&&r.stats.bytesReceived&&(r.stats.firstBytesReceivedAt=Date.now()),a(t,r)}},pc=function(t,e,i,n,r,a,s){var o,u,l,c,h,d=[],p=hc(d,i,s);if(r.key){var f=t(Nr.mergeOptions(e,{uri:r.key.resolvedUri,responseType:"arraybuffer"}),(o=r,u=p,function(t,e){var i=e.response,n=cc(t,e);if(n)return u(n,o);if(16!==i.byteLength)return u({status:e.status,message:"Invalid HLS key at URL: "+e.uri,code:ac,xhr:e},o);var r=new DataView(i);return o.key.bytes=new Uint32Array([r.getUint32(0),r.getUint32(4),r.getUint32(8),r.getUint32(12)]),u(null,o)}));d.push(f)}if(r.map&&!r.map.bytes){var m=t(Nr.mergeOptions(e,{uri:r.map.resolvedUri,responseType:"arraybuffer",headers:uc(r.map)}),(l=r,c=n,h=p,function(t,e){var i=e.response,n=cc(t,e);return n?h(n,l):0===i.byteLength?h({status:e.status,message:"Empty HLS segment content at URL: "+e.uri,code:ac,xhr:e},l):(l.map.bytes=new Uint8Array(e.response),c.isInitialized()||c.init(),l.map.timescales=Ss.timescale(l.map.bytes),l.map.videoTrackIds=Ss.videoTrackIds(l.map.bytes),h(null,l))}));d.push(m)}var g,y,v,_=t(Nr.mergeOptions(e,{uri:r.resolvedUri,responseType:"arraybuffer",headers:uc(r)}),(g=r,y=n,v=p,function(t,e){var i,n=e.response,r=cc(t,e),a=void 0;return r?v(r,g):0===n.byteLength?v({status:e.status,message:"Empty HLS segment content at URL: "+e.uri,code:ac,xhr:e},g):(g.stats={bandwidth:(i=e).bandwidth,bytesReceived:i.bytesReceived||0,roundTripTime:i.roundTripTime||0},g.key?g.encryptedBytes=new Uint8Array(e.response):g.bytes=new Uint8Array(e.response),g.map&&g.map.bytes&&(y.isInitialized()||y.init(),(a=y.parse(g.bytes,g.map.videoTrackIds,g.map.timescales))&&a.captions&&(g.captionStreams=a.captionStreams,g.fmp4Captions=a.captions)),v(null,g))}));return _.addEventListener("progress",dc(r,a)),d.push(_),function(){return lc(d)}},fc=function(t,e){var i;return t&&(i=g.getComputedStyle(t))?i[e]:""},mc=function(t,n){var r=t.slice();t.sort(function(t,e){var i=n(t,e);return 0===i?r.indexOf(t)-r.indexOf(e):i})},gc=function(t,e){var i=void 0,n=void 0;return t.attributes.BANDWIDTH&&(i=t.attributes.BANDWIDTH),i=i||g.Number.MAX_VALUE,e.attributes.BANDWIDTH&&(n=e.attributes.BANDWIDTH),i-(n=n||g.Number.MAX_VALUE)},yc=function(t,e,i){if(!t||!e)return!1;var n=i===t.segments.length;return t.endList&&"open"===e.readyState&&n},vc=function(t){return"number"==typeof t&&isFinite(t)},_c=function(t){function i(t){Pu(this,i);var e=Du(this,(i.__proto__||Object.getPrototypeOf(i)).call(this));if(!t)throw new TypeError("Initialization settings are required");if("function"!=typeof t.currentTime)throw new TypeError("No currentTime getter specified");if(!t.mediaSource)throw new TypeError("No MediaSource specified");return e.bandwidth=t.bandwidth,e.throughput={rate:0,count:0},e.roundTrip=NaN,e.resetStats_(),e.mediaIndex=null,e.hasPlayed_=t.hasPlayed,e.currentTime_=t.currentTime,e.seekable_=t.seekable,e.seeking_=t.seeking,e.duration_=t.duration,e.mediaSource_=t.mediaSource,e.hls_=t.hls,e.loaderType_=t.loaderType,e.startingMedia_=void 0,e.segmentMetadataTrack_=t.segmentMetadataTrack,e.goalBufferLength_=t.goalBufferLength,e.sourceType_=t.sourceType,e.inbandTextTracks_=t.inbandTextTracks,e.state_="INIT",e.checkBufferTimeout_=null,e.error_=void 0,e.currentTimeline_=-1,e.pendingSegment_=null,e.mimeType_=null,e.sourceUpdater_=null,e.xhrOptions_=null,e.activeInitSegmentId_=null,e.initSegments_={},e.captionParser_=new iu,e.decrypter_=t.decrypter,e.syncController_=t.syncController,e.syncPoint_={segmentIndex:0,time:0},e.syncController_.on("syncinfoupdate",function(){return e.trigger("syncinfoupdate")}),e.mediaSource_.addEventListener("sourceopen",function(){return e.ended_=!1}),e.fetchAtBuffer_=!1,e.logger_=ec("SegmentLoader["+e.loaderType_+"]"),Object.defineProperty(e,"state",{get:function(){return this.state_},set:function(t){t!==this.state_&&(this.logger_(this.state_+" -> "+t),this.state_=t)}}),e}return Iu(i,Nr.EventTarget),Uu(i,[{key:"resetStats_",value:function(){this.mediaBytesTransferred=0,this.mediaRequests=0,this.mediaRequestsAborted=0,this.mediaRequestsTimedout=0,this.mediaRequestsErrored=0,this.mediaTransferDuration=0,this.mediaSecondsLoaded=0}},{key:"dispose",value:function(){this.state="DISPOSED",this.pause(),this.abort_(),this.sourceUpdater_&&this.sourceUpdater_.dispose(),this.resetStats_(),this.captionParser_.reset()}},{key:"abort",value:function(){"WAITING"===this.state?(this.abort_(),this.state="READY",this.paused()||this.monitorBuffer_()):this.pendingSegment_&&(this.pendingSegment_=null)}},{key:"abort_",value:function(){this.pendingSegment_&&this.pendingSegment_.abortRequests(),this.pendingSegment_=null}},{key:"error",value:function(t){return"undefined"!=typeof t&&(this.error_=t),this.pendingSegment_=null,this.error_}},{key:"endOfStream",value:function(){this.ended_=!0,this.pause(),this.trigger("ended")}},{key:"buffered_",value:function(){return this.sourceUpdater_?this.sourceUpdater_.buffered():Nr.createTimeRanges()}},{key:"initSegment",value:function(t){var e=1<arguments.length&&void 0!==arguments[1]&&arguments[1];if(!t)return null;var i=dl(t),n=this.initSegments_[i];return e&&!n&&t.bytes&&(this.initSegments_[i]=n={resolvedUri:t.resolvedUri,byterange:t.byterange,bytes:t.bytes,timescales:t.timescales,videoTrackIds:t.videoTrackIds}),n||t}},{key:"couldBeginLoading_",value:function(){return this.playlist_&&(this.sourceUpdater_||this.mimeType_&&"INIT"===this.state)&&!this.paused()}},{key:"load",value:function(){if(this.monitorBuffer_(),this.playlist_){if(this.syncController_.setDateTimeMapping(this.playlist_),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();!this.couldBeginLoading_()||"READY"!==this.state&&"INIT"!==this.state||(this.state="READY")}}},{key:"init_",value:function(){return this.state="READY",this.sourceUpdater_=new nc(this.mediaSource_,this.mimeType_,this.loaderType_,this.sourceBufferEmitter_),this.resetEverything(),this.monitorBuffer_()}},{key:"playlist",value:function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};if(t){var i=this.playlist_,n=this.pendingSegment_;this.playlist_=t,this.xhrOptions_=e,this.hasPlayed_()||(t.syncInfo={mediaSequence:t.mediaSequence,time:0});var r=i?i.id:null;if(this.logger_("playlist update ["+r+" => "+t.id+"]"),this.trigger("syncinfoupdate"),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();if(i&&i.uri===t.uri){var a=t.mediaSequence-i.mediaSequence;this.logger_("live window shift ["+a+"]"),null!==this.mediaIndex&&(this.mediaIndex-=a),n&&(n.mediaIndex-=a,0<=n.mediaIndex&&(n.segment=t.segments[n.mediaIndex])),this.syncController_.saveExpiredSegmentInfo(i,t)}else null!==this.mediaIndex&&this.resyncLoader()}}},{key:"pause",value:function(){this.checkBufferTimeout_&&(g.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=null)}},{key:"paused",value:function(){return null===this.checkBufferTimeout_}},{key:"mimeType",value:function(t,e){this.mimeType_||(this.mimeType_=t,this.sourceBufferEmitter_=e,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_())}},{key:"resetEverything",value:function(t){this.ended_=!1,this.resetLoader(),this.remove(0,this.duration_(),t),this.captionParser_.clearAllCaptions(),this.trigger("reseteverything")}},{key:"resetLoader",value:function(){this.fetchAtBuffer_=!1,this.resyncLoader()}},{key:"resyncLoader",value:function(){this.mediaIndex=null,this.syncPoint_=null,this.abort()}},{key:"remove",value:function(t,e,i){if(this.sourceUpdater_&&this.sourceUpdater_.remove(t,e,i),Tl(t,e,this.segmentMetadataTrack_),this.inbandTextTracks_)for(var n in this.inbandTextTracks_)Tl(t,e,this.inbandTextTracks_[n])}},{key:"monitorBuffer_",value:function(){this.checkBufferTimeout_&&g.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=g.setTimeout(this.monitorBufferTick_.bind(this),1)}},{key:"monitorBufferTick_",value:function(){"READY"===this.state&&this.fillBuffer_(),this.checkBufferTimeout_&&g.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=g.setTimeout(this.monitorBufferTick_.bind(this),500)}},{key:"fillBuffer_",value:function(){if(!this.sourceUpdater_.updating()){this.syncPoint_||(this.syncPoint_=this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_()));var t=this.checkBuffer_(this.buffered_(),this.playlist_,this.mediaIndex,this.hasPlayed_(),this.currentTime_(),this.syncPoint_);if(t)yc(this.playlist_,this.mediaSource_,t.mediaIndex)?this.endOfStream():(t.mediaIndex!==this.playlist_.segments.length-1||"ended"!==this.mediaSource_.readyState||this.seeking_())&&((t.timeline!==this.currentTimeline_||null!==t.startOfSegment&&t.startOfSegment<this.sourceUpdater_.timestampOffset())&&(this.syncController_.reset(),t.timestampOffset=t.startOfSegment,this.captionParser_.clearAllCaptions()),this.loadSegment_(t))}}},{key:"checkBuffer_",value:function(t,e,i,n,r,a){var s=0,o=void 0;t.length&&(s=t.end(t.length-1));var u=Math.max(0,s-r);if(!e.segments.length)return null;if(u>=this.goalBufferLength_())return null;if(!n&&1<=u)return null;if(null===a)return i=this.getSyncSegmentCandidate_(e),this.generateSegmentInfo_(e,i,null,!0);if(null!==i){var l=e.segments[i];return o=l&&l.end?l.end:s,this.generateSegmentInfo_(e,i+1,o,!1)}if(this.fetchAtBuffer_){var c=al.getMediaInfoForTime(e,s,a.segmentIndex,a.time);i=c.mediaIndex,o=c.startTime}else{var h=al.getMediaInfoForTime(e,r,a.segmentIndex,a.time);i=h.mediaIndex,o=h.startTime}return this.generateSegmentInfo_(e,i,o,!1)}},{key:"getSyncSegmentCandidate_",value:function(t){var e=this;if(-1===this.currentTimeline_)return 0;var i=t.segments.map(function(t,e){return{timeline:t.timeline,segmentIndex:e}}).filter(function(t){return t.timeline===e.currentTimeline_});return i.length?i[Math.min(i.length-1,1)].segmentIndex:Math.max(t.segments.length-1,0)}},{key:"generateSegmentInfo_",value:function(t,e,i,n){if(e<0||e>=t.segments.length)return null;var r=t.segments[e];return{requestId:"segment-loader-"+Math.random(),uri:r.resolvedUri,mediaIndex:e,isSyncRequest:n,startOfSegment:i,playlist:t,bytes:null,encryptedBytes:null,timestampOffset:null,timeline:r.timeline,duration:r.duration,segment:r}}},{key:"abortRequestEarly_",value:function(t){if(this.hls_.tech_.paused()||!this.xhrOptions_.timeout||!this.playlist_.attributes.BANDWIDTH)return!1;if(Date.now()-(t.firstBytesReceivedAt||Date.now())<1e3)return!1;var e=this.currentTime_(),i=t.bandwidth,n=this.pendingSegment_.duration,r=al.estimateSegmentRequestTime(n,i,this.playlist_,t.bytesReceived),a=function(t,e){var i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:1;return((t.length?t.end(t.length-1):0)-e)/i}(this.buffered_(),e,this.hls_.tech_.playbackRate())-1;if(r<=a)return!1;var s=function(t){var e=t.master,i=t.currentTime,n=t.bandwidth,r=t.duration,a=t.segmentDuration,s=t.timeUntilRebuffer,o=t.currentTimeline,u=t.syncController,l=e.playlists.filter(function(t){return!al.isIncompatible(t)}),c=l.filter(al.isEnabled);c.length||(c=l.filter(function(t){return!al.isDisabled(t)}));var h=c.filter(al.hasAttribute.bind(null,"BANDWIDTH")).map(function(t){var e=u.getSyncPoint(t,r,o,i)?1:2;return{playlist:t,rebufferingImpact:al.estimateSegmentRequestTime(a,n,t)*e-s}}),d=h.filter(function(t){return t.rebufferingImpact<=0});return mc(d,function(t,e){return gc(e.playlist,t.playlist)}),d.length?d[0]:(mc(h,function(t,e){return t.rebufferingImpact-e.rebufferingImpact}),h[0]||null)}({master:this.hls_.playlists.master,currentTime:e,bandwidth:i,duration:this.duration_(),segmentDuration:n,timeUntilRebuffer:a,currentTimeline:this.currentTimeline_,syncController:this.syncController_});if(s){var o=r-a-s.rebufferingImpact,u=.5;return a<=ml&&(u=1),!s.playlist||s.playlist.uri===this.playlist_.uri||o<u?!1:(this.bandwidth=s.playlist.attributes.BANDWIDTH*rc.BANDWIDTH_VARIANCE+1,this.abort(),this.trigger("earlyabort"),!0)}}},{key:"handleProgress_",value:function(t,e){this.pendingSegment_&&e.requestId===this.pendingSegment_.requestId&&!this.abortRequestEarly_(e.stats)&&this.trigger("progress")}},{key:"loadSegment_",value:function(t){this.state="WAITING",this.pendingSegment_=t,this.trimBackBuffer_(t),t.abortRequests=pc(this.hls_.xhr,this.xhrOptions_,this.decrypter_,this.captionParser_,this.createSimplifiedSegmentObj_(t),this.handleProgress_.bind(this),this.segmentRequestFinished_.bind(this))}},{key:"trimBackBuffer_",value:function(t){var e,i,n,r,a=(e=this.seekable_(),i=this.currentTime_(),n=this.playlist_.targetDuration||10,r=void 0,r=e.length&&0<e.start(0)&&e.start(0)<i?e.start(0):i-30,Math.min(r,i-n));0<a&&this.remove(0,a)}},{key:"createSimplifiedSegmentObj_",value:function(t){var e=t.segment,i={resolvedUri:e.resolvedUri,byterange:e.byterange,requestId:t.requestId};if(e.key){var n=e.key.iv||new Uint32Array([0,0,0,t.mediaIndex+t.playlist.mediaSequence]);i.key={resolvedUri:e.key.resolvedUri,iv:n}}return e.map&&(i.map=this.initSegment(e.map)),i}},{key:"segmentRequestFinished_",value:function(t,e){if(this.mediaRequests+=1,e.stats&&(this.mediaBytesTransferred+=e.stats.bytesReceived,this.mediaTransferDuration+=e.stats.roundTripTime),this.pendingSegment_){if(e.requestId===this.pendingSegment_.requestId){if(t)return this.pendingSegment_=null,this.state="READY",t.code===oc?void(this.mediaRequestsAborted+=1):(this.pause(),t.code===sc?(this.mediaRequestsTimedout+=1,this.bandwidth=1,this.roundTrip=NaN,void this.trigger("bandwidthupdate")):(this.mediaRequestsErrored+=1,this.error(t),void this.trigger("error")));this.bandwidth=e.stats.bandwidth,this.roundTrip=e.stats.roundTripTime,e.map&&(e.map=this.initSegment(e.map,!0)),this.processSegmentResponse_(e)}}else this.mediaRequestsAborted+=1}},{key:"processSegmentResponse_",value:function(t){var e=this.pendingSegment_;e.bytes=t.bytes,t.map&&(e.segment.map.bytes=t.map.bytes),e.endOfAllRequests=t.endOfAllRequests,t.fmp4Captions&&(!function(t,e,i){for(var n in i)if(!t[n]){e.trigger({type:"usage",name:"hls-608"});var r=e.textTracks().getTrackById(n);t[n]=r||e.addRemoteTextTrack({kind:"captions",id:n,label:n},!1).track}}(this.inbandTextTracks_,this.hls_.tech_,t.captionStreams),function(t){var r=t.inbandTextTracks,e=t.captionArray,a=t.timestampOffset;if(e){var s=window.WebKitDataCue||window.VTTCue;e.forEach(function(t){var e=t.stream,i=t.startTime,n=t.endTime;r[e]&&(i+=a,n+=a,r[e].addCue(new s(i,n,t.text)))})}}({inbandTextTracks:this.inbandTextTracks_,captionArray:t.fmp4Captions,timestampOffset:0}),this.captionParser_.clearParsedCaptions()),this.handleSegment_()}},{key:"handleSegment_",value:function(){var t=this;if(this.pendingSegment_){var e=this.pendingSegment_,i=e.segment,n=this.syncController_.probeSegmentInfo(e);"undefined"==typeof this.startingMedia_&&n&&(n.containsAudio||n.containsVideo)&&(this.startingMedia_={containsAudio:n.containsAudio,containsVideo:n.containsVideo});var r,a,s,o=(r=this.loaderType_,a=this.startingMedia_,s=n,"main"===r&&a&&s?s.containsAudio||s.containsVideo?a.containsVideo&&!s.containsVideo?"Only audio found in segment when we expected video. We can't switch to audio only from a stream that had video. To get rid of this message, please add codec information to the manifest.":!a.containsVideo&&s.containsVideo?"Video found in segment when we expected only audio. We can't switch to a stream with video from an audio only stream. To get rid of this message, please add codec information to the manifest.":null:"Neither audio nor video found in segment.":null);if(o)return this.error({message:o,blacklistDuration:1/0}),void this.trigger("error");if(e.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");null!==e.timestampOffset&&e.timestampOffset!==this.sourceUpdater_.timestampOffset()&&(this.sourceUpdater_.timestampOffset(e.timestampOffset),this.trigger("timestampoffset"));var u,l,c,h,d,p,f,m,g,y,v,_=this.syncController_.mappingForTimeline(e.timeline);if(null!==_&&this.trigger({type:"segmenttimemapping",mapping:_}),this.state="APPENDING",i.map){var b=dl(i.map);if(!this.activeInitSegmentId_||this.activeInitSegmentId_!==b){var T=this.initSegment(i.map);this.sourceUpdater_.appendBuffer(T.bytes,function(){t.activeInitSegmentId_=b})}}e.byteLength=e.bytes.byteLength,"number"==typeof i.start&&"number"==typeof i.end?this.mediaSecondsLoaded+=i.end-i.start:this.mediaSecondsLoaded+=i.duration,this.logger_((l=(u=e).segment,c=l.start,h=l.end,d=u.playlist,p=d.mediaSequence,f=d.id,m=d.segments,g=void 0===m?[]:m,y=u.mediaIndex,v=u.timeline,["appending ["+y+"] of ["+p+", "+(p+g.length)+"] from playlist ["+f+"]","["+c+" => "+h+"] in timeline ["+v+"]"].join(" "))),this.sourceUpdater_.appendBuffer(e.bytes,this.handleUpdateEnd_.bind(this))}else this.state="READY"}},{key:"handleUpdateEnd_",value:function(){if(!this.pendingSegment_)return this.state="READY",void(this.paused()||this.monitorBuffer_());var t=this.pendingSegment_,e=t.segment,i=null!==this.mediaIndex;(this.pendingSegment_=null,this.recordThroughput_(t),this.addSegmentMetadataCue_(t),this.state="READY",this.mediaIndex=t.mediaIndex,this.fetchAtBuffer_=!0,this.currentTimeline_=t.timeline,this.trigger("syncinfoupdate"),e.end&&this.currentTime_()-e.end>3*t.playlist.targetDuration)?this.resetEverything():(i&&this.trigger("bandwidthupdate"),this.trigger("progress"),yc(t.playlist,this.mediaSource_,t.mediaIndex+1)&&this.endOfStream(),this.paused()||this.monitorBuffer_())}},{key:"recordThroughput_",value:function(t){var e=this.throughput.rate,i=Date.now()-t.endOfAllRequests+1,n=Math.floor(t.byteLength/i*8*1e3);this.throughput.rate+=(n-e)/++this.throughput.count}},{key:"addSegmentMetadataCue_",value:function(t){if(this.segmentMetadataTrack_){var e=t.segment,i=e.start,n=e.end;if(vc(i)&&vc(n)){Tl(i,n,this.segmentMetadataTrack_);var r=g.WebKitDataCue||g.VTTCue,a={bandwidth:t.playlist.attributes.BANDWIDTH,resolution:t.playlist.attributes.RESOLUTION,codecs:t.playlist.attributes.CODECS,byteLength:t.byteLength,uri:t.uri,timeline:t.timeline,playlist:t.playlist.uri,start:i,end:n},s=new r(i,n,JSON.stringify(a));s.value=a,this.segmentMetadataTrack_.addCue(s)}}}}]),i}(),bc=function(t){return decodeURIComponent(escape(String.fromCharCode.apply(null,t)))},Tc=new Uint8Array("\n\n".split("").map(function(t){return t.charCodeAt(0)})),Sc=function(t){function n(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};Pu(this,n);var i=Du(this,(n.__proto__||Object.getPrototypeOf(n)).call(this,t,e));return i.mediaSource_=null,i.subtitlesTrack_=null,i}return Iu(n,_c),Uu(n,[{key:"buffered_",value:function(){if(!this.subtitlesTrack_||!this.subtitlesTrack_.cues.length)return Nr.createTimeRanges();var t=this.subtitlesTrack_.cues,e=t[0].startTime,i=t[t.length-1].startTime;return Nr.createTimeRanges([[e,i]])}},{key:"initSegment",value:function(t){var e=1<arguments.length&&void 0!==arguments[1]&&arguments[1];if(!t)return null;var i=dl(t),n=this.initSegments_[i];if(e&&!n&&t.bytes){var r=Tc.byteLength+t.bytes.byteLength,a=new Uint8Array(r);a.set(t.bytes),a.set(Tc,t.bytes.byteLength),this.initSegments_[i]=n={resolvedUri:t.resolvedUri,byterange:t.byterange,bytes:a}}return n||t}},{key:"couldBeginLoading_",value:function(){return this.playlist_&&this.subtitlesTrack_&&!this.paused()}},{key:"init_",value:function(){return this.state="READY",this.resetEverything(),this.monitorBuffer_()}},{key:"track",value:function(t){return"undefined"==typeof t||(this.subtitlesTrack_=t,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_()),this.subtitlesTrack_}},{key:"remove",value:function(t,e){Tl(t,e,this.subtitlesTrack_)}},{key:"fillBuffer_",value:function(){var t=this;this.syncPoint_||(this.syncPoint_=this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_()));var e=this.checkBuffer_(this.buffered_(),this.playlist_,this.mediaIndex,this.hasPlayed_(),this.currentTime_(),this.syncPoint_);if(e=this.skipEmptySegments_(e)){if(null===this.syncController_.timestampOffsetForTimeline(e.timeline)){return this.syncController_.one("timestampoffset",function(){t.state="READY",t.paused()||t.monitorBuffer_()}),void(this.state="WAITING_ON_TIMELINE")}this.loadSegment_(e)}}},{key:"skipEmptySegments_",value:function(t){for(;t&&t.segment.empty;)t=this.generateSegmentInfo_(t.playlist,t.mediaIndex+1,t.startOfSegment+t.duration,t.isSyncRequest);return t}},{key:"handleSegment_",value:function(){var e=this;if(this.pendingSegment_&&this.subtitlesTrack_){this.state="APPENDING";var t=this.pendingSegment_,i=t.segment;if("function"!=typeof g.WebVTT&&this.subtitlesTrack_&&this.subtitlesTrack_.tech_){var n=function(){e.handleSegment_()};return this.state="WAITING_ON_VTTJS",this.subtitlesTrack_.tech_.one("vttjsloaded",n),void this.subtitlesTrack_.tech_.one("vttjserror",function(){e.subtitlesTrack_.tech_.off("vttjsloaded",n),e.error({message:"Error loading vtt.js"}),e.state="READY",e.pause(),e.trigger("error")})}i.requested=!0;try{this.parseVTTCues_(t)}catch(t){return this.error({message:t.message}),this.state="READY",this.pause(),this.trigger("error")}if(this.updateTimeMapping_(t,this.syncController_.timelines[t.timeline],this.playlist_),t.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");t.byteLength=t.bytes.byteLength,this.mediaSecondsLoaded+=i.duration,t.cues.length&&this.remove(t.cues[0].endTime,t.cues[t.cues.length-1].endTime),t.cues.forEach(function(t){e.subtitlesTrack_.addCue(t)}),this.handleUpdateEnd_()}else this.state="READY"}},{key:"parseVTTCues_",value:function(e){var t=void 0,i=!1;"function"==typeof g.TextDecoder?t=new g.TextDecoder("utf8"):(t=g.WebVTT.StringDecoder(),i=!0);var n=new g.WebVTT.Parser(g,g.vttjs,t);if(e.cues=[],e.timestampmap={MPEGTS:0,LOCAL:0},n.oncue=e.cues.push.bind(e.cues),n.ontimestampmap=function(t){return e.timestampmap=t},n.onparsingerror=function(t){Nr.log.warn("Error encountered when parsing cues: "+t.message)},e.segment.map){var r=e.segment.map.bytes;i&&(r=bc(r)),n.parse(r)}var a=e.bytes;i&&(a=bc(a)),n.parse(a),n.flush()}},{key:"updateTimeMapping_",value:function(t,e,i){var n=t.segment;if(e)if(t.cues.length){var r=t.timestampmap,a=r.MPEGTS/9e4-r.LOCAL+e.mapping;if(t.cues.forEach(function(t){t.startTime+=a,t.endTime+=a}),!i.syncInfo){var s=t.cues[0].startTime,o=t.cues[t.cues.length-1].startTime;i.syncInfo={mediaSequence:i.mediaSequence+t.mediaIndex,time:Math.min(s,o-n.duration)}}}else n.empty=!0}}]),n}(),kc=function(t,e){for(var i=t.cues,n=0;n<i.length;n++){var r=i[n];if(e>=r.adStartTime&&e<=r.adEndTime)return r}return null},Cc=yu,wc=[{name:"VOD",run:function(t,e,i,n,r){if(i!==1/0){return{time:0,segmentIndex:0}}return null}},{name:"ProgramDateTime",run:function(t,e,i,n,r){if(!t.datetimeToDisplayTime)return null;var a=e.segments||[],s=null,o=null;r=r||0;for(var u=0;u<a.length;u++){var l=a[u];if(l.dateTimeObject){var c=l.dateTimeObject.getTime()/1e3+t.datetimeToDisplayTime,h=Math.abs(r-c);if(null!==o&&o<h)break;o=h,s={time:c,segmentIndex:u}}}return s}},{name:"Segment",run:function(t,e,i,n,r){var a=e.segments||[],s=null,o=null;r=r||0;for(var u=0;u<a.length;u++){var l=a[u];if(l.timeline===n&&"undefined"!=typeof l.start){var c=Math.abs(r-l.start);if(null!==o&&o<c)break;(!s||null===o||c<=o)&&(o=c,s={time:l.start,segmentIndex:u})}}return s}},{name:"Discontinuity",run:function(t,e,i,n,r){var a=null;if(r=r||0,e.discontinuityStarts&&e.discontinuityStarts.length)for(var s=null,o=0;o<e.discontinuityStarts.length;o++){var u=e.discontinuityStarts[o],l=e.discontinuitySequence+o+1,c=t.discontinuities[l];if(c){var h=Math.abs(r-c.time);if(null!==s&&s<h)break;(!a||null===s||h<=s)&&(s=h,a={time:c.time,segmentIndex:u})}}return a}},{name:"Playlist",run:function(t,e,i,n,r){return e.syncInfo?{time:e.syncInfo.time,segmentIndex:e.syncInfo.mediaSequence-e.mediaSequence}:null}}],Ec=function(t){function e(){Pu(this,e);var t=Du(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.inspectCache_=void 0,t.timelines=[],t.discontinuities=[],t.datetimeToDisplayTime=null,t.logger_=ec("SyncController"),t}return Iu(e,Nr.EventTarget),Uu(e,[{key:"getSyncPoint",value:function(t,e,i,n){var r=this.runStrategies_(t,e,i,n);return r.length?this.selectSyncPoint_(r,{key:"time",value:n}):null}},{key:"getExpiredTime",value:function(t,e){if(!t||!t.segments)return null;var i=this.runStrategies_(t,e,t.discontinuitySequence,0);if(!i.length)return null;var n=this.selectSyncPoint_(i,{key:"segmentIndex",value:0});return 0<n.segmentIndex&&(n.time*=-1),Math.abs(n.time+Xu(t,n.segmentIndex,0))}},{key:"runStrategies_",value:function(t,e,i,n){for(var r=[],a=0;a<wc.length;a++){var s=wc[a],o=s.run(this,t,e,i,n);o&&(o.strategy=s.name,r.push({strategy:s.name,syncPoint:o}))}return r}},{key:"selectSyncPoint_",value:function(t,e){for(var i=t[0].syncPoint,n=Math.abs(t[0].syncPoint[e.key]-e.value),r=t[0].strategy,a=1;a<t.length;a++){var s=Math.abs(t[a].syncPoint[e.key]-e.value);s<n&&(n=s,i=t[a].syncPoint,r=t[a].strategy)}return this.logger_("syncPoint for ["+e.key+": "+e.value+"] chosen with strategy ["+r+"]: [time:"+i.time+", segmentIndex:"+i.segmentIndex+"]"),i}},{key:"saveExpiredSegmentInfo",value:function(t,e){for(var i=e.mediaSequence-t.mediaSequence-1;0<=i;i--){var n=t.segments[i];if(n&&"undefined"!=typeof n.start){e.syncInfo={mediaSequence:t.mediaSequence+i,time:n.start},this.logger_("playlist refresh sync: [time:"+e.syncInfo.time+", mediaSequence: "+e.syncInfo.mediaSequence+"]"),this.trigger("syncinfoupdate");break}}}},{key:"setDateTimeMapping",value:function(t){if(!this.datetimeToDisplayTime&&t.segments&&t.segments.length&&t.segments[0].dateTimeObject){var e=t.segments[0].dateTimeObject.getTime()/1e3;this.datetimeToDisplayTime=-e}}},{key:"reset",value:function(){this.inspectCache_=void 0}},{key:"probeSegmentInfo",value:function(t){var e=t.segment,i=t.playlist,n=void 0;return(n=e.map?this.probeMp4Segment_(t):this.probeTsSegment_(t))&&this.calculateSegmentTimeMapping_(t,n)&&(this.saveDiscontinuitySyncInfo_(t),i.syncInfo||(i.syncInfo={mediaSequence:i.mediaSequence+t.mediaIndex,time:e.start})),n}},{key:"probeMp4Segment_",value:function(t){var e=t.segment,i=Ss.timescale(e.map.bytes),n=Ss.startTime(i,t.bytes);return null!==t.timestampOffset&&(t.timestampOffset-=n),{start:n,end:n+e.duration}}},{key:"probeTsSegment_",value:function(t){var e=Cc(t.bytes,this.inspectCache_),i=void 0,n=void 0;return e?(e.video&&2===e.video.length?(this.inspectCache_=e.video[1].dts,i=e.video[0].dtsTime,n=e.video[1].dtsTime):e.audio&&2===e.audio.length&&(this.inspectCache_=e.audio[1].dts,i=e.audio[0].dtsTime,n=e.audio[1].dtsTime),{start:i,end:n,containsVideo:e.video&&2===e.video.length,containsAudio:e.audio&&2===e.audio.length}):null}},{key:"timestampOffsetForTimeline",value:function(t){return"undefined"==typeof this.timelines[t]?null:this.timelines[t].time}},{key:"mappingForTimeline",value:function(t){return"undefined"==typeof this.timelines[t]?null:this.timelines[t].mapping}},{key:"calculateSegmentTimeMapping_",value:function(t,e){var i=t.segment,n=this.timelines[t.timeline];if(null!==t.timestampOffset)n={time:t.startOfSegment,mapping:t.startOfSegment-e.start},this.timelines[t.timeline]=n,this.trigger("timestampoffset"),this.logger_("time mapping for timeline "+t.timeline+": [time: "+n.time+"] [mapping: "+n.mapping+"]"),i.start=t.startOfSegment,i.end=e.end+n.mapping;else{if(!n)return!1;i.start=e.start+n.mapping,i.end=e.end+n.mapping}return!0}},{key:"saveDiscontinuitySyncInfo_",value:function(t){var e=t.playlist,i=t.segment;if(i.discontinuity)this.discontinuities[i.timeline]={time:i.start,accuracy:0};else if(e.discontinuityStarts&&e.discontinuityStarts.length)for(var n=0;n<e.discontinuityStarts.length;n++){var r=e.discontinuityStarts[n],a=e.discontinuitySequence+n+1,s=r-t.mediaIndex,o=Math.abs(s);if(!this.discontinuities[a]||this.discontinuities[a].accuracy>o){var u=void 0;u=s<0?i.start-Xu(e,t.mediaIndex,r):i.end+Xu(e,t.mediaIndex+1,r),this.discontinuities[a]={time:u,accuracy:o}}}}}]),e}(),Ac=new Pl("./decrypter-worker.worker.js",function(t,e){var h,i,n,d,p,g,r,l,y,s,a=this;h=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},i=function(){function n(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(t,e,i){return e&&n(t.prototype,e),i&&n(t,i),t}}(),n=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!==("undefined"==typeof e?"undefined":Ee(e))&&"function"!=typeof e?t:e},d=function(){var t=[[[],[],[],[],[]],[[],[],[],[],[]]],e=t[0],i=t[1],n=e[4],r=i[4],a=void 0,s=void 0,o=void 0,u=[],l=[],c=void 0,h=void 0,d=void 0,p=void 0,f=void 0;for(a=0;a<256;a++)l[(u[a]=a<<1^283*(a>>7))^a]=a;for(s=o=0;!n[s];s^=c||1,o=l[o]||1)for(d=(d=o^o<<1^o<<2^o<<3^o<<4)>>8^255&d^99,f=16843009*u[h=u[c=u[r[n[s]=d]=s]]]^65537*h^257*c^16843008*s,p=257*u[d]^16843008*d,a=0;a<4;a++)e[a][s]=p=p<<24^p>>>8,i[a][d]=f=f<<24^f>>>8;for(a=0;a<5;a++)e[a]=e[a].slice(0),i[a]=i[a].slice(0);return t},p=null,g=function(){function c(t){h(this,c),p||(p=d()),this._tables=[[p[0][0].slice(),p[0][1].slice(),p[0][2].slice(),p[0][3].slice(),p[0][4].slice()],[p[1][0].slice(),p[1][1].slice(),p[1][2].slice(),p[1][3].slice(),p[1][4].slice()]];var e=void 0,i=void 0,n=void 0,r=void 0,a=void 0,s=this._tables[0][4],o=this._tables[1],u=t.length,l=1;if(4!==u&&6!==u&&8!==u)throw new Error("Invalid aes key size");for(r=t.slice(0),a=[],this._key=[r,a],e=u;e<4*u+28;e++)n=r[e-1],(e%u==0||8===u&&e%u==4)&&(n=s[n>>>24]<<24^s[n>>16&255]<<16^s[n>>8&255]<<8^s[255&n],e%u==0&&(n=n<<8^n>>>24^l<<24,l=l<<1^283*(l>>7))),r[e]=r[e-u]^n;for(i=0;e;i++,e--)n=r[3&i?e:e-4],a[i]=e<=4||i<4?n:o[0][s[n>>>24]]^o[1][s[n>>16&255]]^o[2][s[n>>8&255]]^o[3][s[255&n]]}return c.prototype.decrypt=function(t,e,i,n,r,a){var s=this._key[1],o=t^s[0],u=n^s[1],l=i^s[2],c=e^s[3],h=void 0,d=void 0,p=void 0,f=s.length/4-2,m=void 0,g=4,y=this._tables[1],v=y[0],_=y[1],b=y[2],T=y[3],S=y[4];for(m=0;m<f;m++)h=v[o>>>24]^_[u>>16&255]^b[l>>8&255]^T[255&c]^s[g],d=v[u>>>24]^_[l>>16&255]^b[c>>8&255]^T[255&o]^s[g+1],p=v[l>>>24]^_[c>>16&255]^b[o>>8&255]^T[255&u]^s[g+2],c=v[c>>>24]^_[o>>16&255]^b[u>>8&255]^T[255&l]^s[g+3],g+=4,o=h,u=d,l=p;for(m=0;m<4;m++)r[(3&-m)+a]=S[o>>>24]<<24^S[u>>16&255]<<16^S[l>>8&255]<<8^S[255&c]^s[g++],h=o,o=u,u=l,l=c,c=h},c}(),r=function(){function t(){h(this,t),this.listeners={}}return t.prototype.on=function(t,e){this.listeners[t]||(this.listeners[t]=[]),this.listeners[t].push(e)},t.prototype.off=function(t,e){if(!this.listeners[t])return!1;var i=this.listeners[t].indexOf(e);return this.listeners[t].splice(i,1),-1<i},t.prototype.trigger=function(t){var e=this.listeners[t];if(e)if(2===arguments.length)for(var i=e.length,n=0;n<i;++n)e[n].call(this,arguments[1]);else for(var r=Array.prototype.slice.call(arguments,1),a=e.length,s=0;s<a;++s)e[s].apply(this,r)},t.prototype.dispose=function(){this.listeners={}},t.prototype.pipe=function(e){this.on("data",function(t){e.push(t)})},t}(),l=function(e){function i(){h(this,i);var t=n(this,e.call(this,r));return t.jobs=[],t.delay=1,t.timeout_=null,t}return function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+("undefined"==typeof e?"undefined":Ee(e)));t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}(i,e),i.prototype.processJob_=function(){this.jobs.shift()(),this.jobs.length?this.timeout_=setTimeout(this.processJob_.bind(this),this.delay):this.timeout_=null},i.prototype.push=function(t){this.jobs.push(t),this.timeout_||(this.timeout_=setTimeout(this.processJob_.bind(this),this.delay))},i}(r),y=function(t){return t<<24|(65280&t)<<8|(16711680&t)>>8|t>>>24},s=function(){function u(t,e,i,n){h(this,u);var r=u.STEP,a=new Int32Array(t.buffer),s=new Uint8Array(t.byteLength),o=0;for(this.asyncStream_=new l,this.asyncStream_.push(this.decryptChunk_(a.subarray(o,o+r),e,i,s)),o=r;o<a.length;o+=r)i=new Uint32Array([y(a[o-4]),y(a[o-3]),y(a[o-2]),y(a[o-1])]),this.asyncStream_.push(this.decryptChunk_(a.subarray(o,o+r),e,i,s));this.asyncStream_.push(function(){var t;n(null,(t=s).subarray(0,t.byteLength-t[t.byteLength-1]))})}return u.prototype.decryptChunk_=function(e,i,n,r){return function(){var t=function(t,e,i){var n=new Int32Array(t.buffer,t.byteOffset,t.byteLength>>2),r=new g(Array.prototype.slice.call(e)),a=new Uint8Array(t.byteLength),s=new Int32Array(a.buffer),o=void 0,u=void 0,l=void 0,c=void 0,h=void 0,d=void 0,p=void 0,f=void 0,m=void 0;for(o=i[0],u=i[1],l=i[2],c=i[3],m=0;m<n.length;m+=4)h=y(n[m]),d=y(n[m+1]),p=y(n[m+2]),f=y(n[m+3]),r.decrypt(h,d,p,f,s,m),s[m]=y(s[m]^o),s[m+1]=y(s[m+1]^u),s[m+2]=y(s[m+2]^l),s[m+3]=y(s[m+3]^c),o=h,u=d,l=p,c=f;return a}(e,i,n);r.set(t,e.byteOffset)}},i(u,null,[{key:"STEP",get:function(){return 32e3}}]),u}(),new function(a){a.onmessage=function(t){var r=t.data,e=new Uint8Array(r.encrypted.bytes,r.encrypted.byteOffset,r.encrypted.byteLength),i=new Uint32Array(r.key.bytes,r.key.byteOffset,r.key.byteLength/4),n=new Uint32Array(r.iv.bytes,r.iv.byteOffset,r.iv.byteLength/4);new s(e,i,n,function(t,e){var i,n;a.postMessage((i={source:r.source,decrypted:e},n={},Object.keys(i).forEach(function(t){var e=i[t];ArrayBuffer.isView(e)?n[t]={bytes:e.buffer,byteOffset:e.byteOffset,byteLength:e.byteLength}:n[t]=e}),n),[e.buffer])})}}(a)}),Lc=function(t,e){t.abort(),t.pause(),e&&e.activePlaylistLoader&&(e.activePlaylistLoader.pause(),e.activePlaylistLoader=null)},Oc=function(t,e){(e.activePlaylistLoader=t).load()},Pc={AUDIO:function(u,l){return function(){var t=l.segmentLoaders[u],e=l.mediaTypes[u],i=l.blacklistCurrentPlaylist;Lc(t,e);var n=e.activeTrack(),r=e.activeGroup(),a=(r.filter(function(t){return t.default})[0]||r[0]).id,s=e.tracks[a];if(n!==s){for(var o in Nr.log.warn("Problem encountered loading the alternate audio track.Switching back to default."),e.tracks)e.tracks[o].enabled=e.tracks[o]===s;e.onTrackChanged()}else i({message:"Problem encountered loading the default audio track."})}},SUBTITLES:function(n,r){return function(){var t=r.segmentLoaders[n],e=r.mediaTypes[n];Nr.log.warn("Problem encountered loading the subtitle track.Disabling subtitle track."),Lc(t,e);var i=e.activeTrack();i&&(i.mode="disabled"),e.onTrackChanged()}}},Uc={AUDIO:function(t,e,i){if(e){var n=i.tech,r=i.requestOptions,a=i.segmentLoaders[t];e.on("loadedmetadata",function(){var t=e.media();a.playlist(t,r),(!n.paused()||t.endList&&"none"!==n.preload())&&a.load()}),e.on("loadedplaylist",function(){a.playlist(e.media(),r),n.paused()||a.load()}),e.on("error",Pc[t](t,i))}},SUBTITLES:function(t,e,i){var n=i.tech,r=i.requestOptions,a=i.segmentLoaders[t],s=i.mediaTypes[t];e.on("loadedmetadata",function(){var t=e.media();a.playlist(t,r),a.track(s.activeTrack()),(!n.paused()||t.endList&&"none"!==n.preload())&&a.load()}),e.on("loadedplaylist",function(){a.playlist(e.media(),r),n.paused()||a.load()}),e.on("error",Pc[t](t,i))}},Ic=function(e,i){return function(t){return t.attributes[e]===i}},Dc=function(e){return function(t){return t.resolvedUri===e}},xc={AUDIO:function(t,e){var i,n,r=e.hls,a=e.sourceType,s=e.segmentLoaders[t],o=e.requestOptions.withCredentials,u=e.master,l=u.mediaGroups,c=u.playlists,h=e.mediaTypes[t],d=h.groups,p=h.tracks,f=e.masterPlaylistLoader;for(var m in l[t]&&0!==Object.keys(l[t]).length||(l[t]={main:{default:{default:!0}}}),l[t]){d[m]||(d[m]=[]);var g=c.filter(Ic(t,m));for(var y in l[t][m]){var v=l[t][m][y];g.filter(Dc(v.resolvedUri)).length&&delete v.resolvedUri;var _=void 0;if(_=v.resolvedUri?new qu(v.resolvedUri,r,o):v.playlists&&"dash"===a?new tc(v.playlists[0],r,o,f):null,v=Nr.mergeOptions({id:y,playlistLoader:_},v),Uc[t](t,v.playlistLoader,e),d[m].push(v),"undefined"==typeof p[y]){var b=new Nr.AudioTrack({id:y,kind:(i=v,n=void 0,n=i.default?"main":"alternative",i.characteristics&&0<=i.characteristics.indexOf("public.accessibility.describes-video")&&(n="main-desc"),n),enabled:!1,language:v.language,default:v.default,label:y});p[y]=b}}}s.on("error",Pc[t](t,e))},SUBTITLES:function(t,e){var i=e.tech,n=e.hls,r=e.sourceType,a=e.segmentLoaders[t],s=e.requestOptions.withCredentials,o=e.master.mediaGroups,u=e.mediaTypes[t],l=u.groups,c=u.tracks,h=e.masterPlaylistLoader;for(var d in o[t])for(var p in l[d]||(l[d]=[]),o[t][d])if(!o[t][d][p].forced){var f=o[t][d][p],m=void 0;if("hls"===r?m=new qu(f.resolvedUri,n,s):"dash"===r&&(m=new tc(f.playlists[0],n,s,h)),f=Nr.mergeOptions({id:p,playlistLoader:m},f),Uc[t](t,f.playlistLoader,e),l[d].push(f),"undefined"==typeof c[p]){var g=i.addRemoteTextTrack({id:p,kind:"subtitles",enabled:!1,language:f.language,label:p},!1).track;c[p]=g}}a.on("error",Pc[t](t,e))},"CLOSED-CAPTIONS":function(t,e){var i=e.tech,n=e.master.mediaGroups,r=e.mediaTypes[t],a=r.groups,s=r.tracks;for(var o in n[t])for(var u in a[o]||(a[o]=[]),n[t][o]){var l=n[t][o][u];if(l.instreamId.match(/CC\d/)&&(a[o].push(Nr.mergeOptions({id:u},l)),"undefined"==typeof s[u])){var c=i.addRemoteTextTrack({id:l.instreamId,kind:"captions",enabled:!1,language:l.language,label:u},!1).track;s[u]=c}}}},Rc={AUDIO:function(i,n){return function(){var t=n.mediaTypes[i].tracks;for(var e in t)if(t[e].enabled)return t[e];return null}},SUBTITLES:function(i,n){return function(){var t=n.mediaTypes[i].tracks;for(var e in t)if("showing"===t[e].mode)return t[e];return null}}},Mc=function(e){["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach(function(t){xc[t](t,e)});var i=e.mediaTypes,t=e.masterPlaylistLoader,n=e.tech,r=e.hls;["AUDIO","SUBTITLES"].forEach(function(t){var a,s,o,u,l,c;i[t].activeGroup=(a=t,s=e,function(e){var t=s.masterPlaylistLoader,i=s.mediaTypes[a].groups,n=t.media();if(!n)return null;var r=null;return n.attributes[a]&&(r=i[n.attributes[a]]),r=r||i.main,"undefined"==typeof e?r:null===e?null:r.filter(function(t){return t.id===e.id})[0]||null}),i[t].activeTrack=Rc[t](t,e),i[t].onGroupChanged=(o=t,u=e,function(){var t=u.segmentLoaders,e=t[o],i=t.main,n=u.mediaTypes[o],r=n.activeTrack(),a=n.activeGroup(r),s=n.activePlaylistLoader;Lc(e,n),a&&(a.playlistLoader?(e.resyncLoader(),Oc(a.playlistLoader,n)):s&&i.resetEverything())}),i[t].onTrackChanged=(l=t,c=e,function(){var t=c.segmentLoaders,e=t[l],i=t.main,n=c.mediaTypes[l],r=n.activeTrack(),a=n.activeGroup(r),s=n.activePlaylistLoader;Lc(e,n),a&&(a.playlistLoader?(s!==a.playlistLoader&&(e.track&&e.track(r),e.resetEverything()),Oc(a.playlistLoader,n)):i.resetEverything())})});var a=i.AUDIO.activeGroup(),s=(a.filter(function(t){return t.default})[0]||a[0]).id;i.AUDIO.tracks[s].enabled=!0,i.AUDIO.onTrackChanged(),t.on("mediachange",function(){["AUDIO","SUBTITLES"].forEach(function(t){return i[t].onGroupChanged()})});var o=function(){i.AUDIO.onTrackChanged(),n.trigger({type:"usage",name:"hls-audio-change"})};for(var u in n.audioTracks().addEventListener("change",o),n.remoteTextTracks().addEventListener("change",i.SUBTITLES.onTrackChanged),r.on("dispose",function(){n.audioTracks().removeEventListener("change",o),n.remoteTextTracks().removeEventListener("change",i.SUBTITLES.onTrackChanged)}),n.clearTracks("audio"),i.AUDIO.tracks)n.audioTracks().addTrack(i.AUDIO.tracks[u])},Nc=function(){var e={};return["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach(function(t){e[t]={groups:{},tracks:{},activePlaylistLoader:null,activeGroup:ic,activeTrack:ic,onGroupChanged:ic,onTrackChanged:ic}}),e},Bc=void 0,jc=["mediaRequests","mediaRequestsAborted","mediaRequestsTimedout","mediaRequestsErrored","mediaTransferDuration","mediaBytesTransferred"],Fc=function(t){return this.audioSegmentLoader_[t]+this.mainSegmentLoader_[t]},Hc=function(t){function p(t){Pu(this,p);var e=Du(this,(p.__proto__||Object.getPrototypeOf(p)).call(this)),i=t.url,n=t.withCredentials,r=t.tech,a=t.bandwidth,s=t.externHls,o=t.useCueTags,u=t.blacklistDuration,l=t.enableLowInitialPlaylist,c=t.sourceType,h=t.seekTo;if(!i)throw new Error("A non-empty playlist URL is required");Bc=s,e.withCredentials=n,e.tech_=r,e.hls_=r.hls,e.seekTo_=h,e.sourceType_=c,e.useCueTags_=o,e.blacklistDuration=u,e.enableLowInitialPlaylist=l,e.useCueTags_&&(e.cueTagsTrack_=e.tech_.addTextTrack("metadata","ad-cues"),e.cueTagsTrack_.inBandMetadataTrackDispatchType=""),e.requestOptions_={withCredentials:e.withCredentials,timeout:null},e.mediaTypes_=Nc(),e.mediaSource=new Nr.MediaSource,e.mediaSource.addEventListener("sourceopen",e.handleSourceOpen_.bind(e)),e.seekable_=Nr.createTimeRanges(),e.hasPlayed_=function(){return!1},e.syncController_=new Ec(t),e.segmentMetadataTrack_=r.addRemoteTextTrack({kind:"metadata",label:"segment-metadata"},!1).track,e.decrypter_=new Ac,e.inbandTextTracks_={};var d={hls:e.hls_,mediaSource:e.mediaSource,currentTime:e.tech_.currentTime.bind(e.tech_),seekable:function(){return e.seekable()},seeking:function(){return e.tech_.seeking()},duration:function(){return e.mediaSource.duration},hasPlayed:function(){return e.hasPlayed_()},goalBufferLength:function(){return e.goalBufferLength()},bandwidth:a,syncController:e.syncController_,decrypter:e.decrypter_,sourceType:e.sourceType_,inbandTextTracks:e.inbandTextTracks_};return e.masterPlaylistLoader_="dash"===e.sourceType_?new tc(i,e.hls_,e.withCredentials):new qu(i,e.hls_,e.withCredentials),e.setupMasterPlaylistLoaderListeners_(),e.mainSegmentLoader_=new _c(Nr.mergeOptions(d,{segmentMetadataTrack:e.segmentMetadataTrack_,loaderType:"main"}),t),e.audioSegmentLoader_=new _c(Nr.mergeOptions(d,{loaderType:"audio"}),t),e.subtitleSegmentLoader_=new Sc(Nr.mergeOptions(d,{loaderType:"vtt"}),t),e.setupSegmentLoaderListeners_(),jc.forEach(function(t){e[t+"_"]=Fc.bind(e,t)}),e.logger_=ec("MPC"),e.masterPlaylistLoader_.load(),e}return Iu(p,Nr.EventTarget),Uu(p,[{key:"setupMasterPlaylistLoaderListeners_",value:function(){var n=this;this.masterPlaylistLoader_.on("loadedmetadata",function(){var t=n.masterPlaylistLoader_.media(),e=1.5*n.masterPlaylistLoader_.targetDuration*1e3;rl(n.masterPlaylistLoader_.master,n.masterPlaylistLoader_.media())?n.requestOptions_.timeout=0:n.requestOptions_.timeout=e,t.endList&&"none"!==n.tech_.preload()&&(n.mainSegmentLoader_.playlist(t,n.requestOptions_),n.mainSegmentLoader_.load()),Mc({sourceType:n.sourceType_,segmentLoaders:{AUDIO:n.audioSegmentLoader_,SUBTITLES:n.subtitleSegmentLoader_,main:n.mainSegmentLoader_},tech:n.tech_,requestOptions:n.requestOptions_,masterPlaylistLoader:n.masterPlaylistLoader_,hls:n.hls_,master:n.master(),mediaTypes:n.mediaTypes_,blacklistCurrentPlaylist:n.blacklistCurrentPlaylist.bind(n)}),n.triggerPresenceUsage_(n.master(),t);try{n.setupSourceBuffers_()}catch(t){return Nr.log.warn("Failed to create SourceBuffers",t),n.mediaSource.endOfStream("decode")}n.setupFirstPlay(),n.trigger("selectedinitialmedia")}),this.masterPlaylistLoader_.on("loadedplaylist",function(){var t=n.masterPlaylistLoader_.media();if(!t){n.excludeUnsupportedVariants_();var e=void 0;return n.enableLowInitialPlaylist&&(e=n.selectInitialPlaylist()),e||(e=n.selectPlaylist()),n.initialMedia_=e,void n.masterPlaylistLoader_.media(n.initialMedia_)}if(n.useCueTags_&&n.updateAdCues_(t),n.mainSegmentLoader_.playlist(t,n.requestOptions_),n.updateDuration(),n.tech_.paused()||(n.mainSegmentLoader_.load(),n.audioSegmentLoader_&&n.audioSegmentLoader_.load()),!t.endList){var i=function(){var t=n.seekable();0!==t.length&&n.mediaSource.addSeekableRange_(t.start(0),t.end(0))};if(n.duration()!==1/0){n.tech_.one("durationchange",function t(){n.duration()===1/0?i():n.tech_.one("durationchange",t)})}else i()}}),this.masterPlaylistLoader_.on("error",function(){n.blacklistCurrentPlaylist(n.masterPlaylistLoader_.error)}),this.masterPlaylistLoader_.on("mediachanging",function(){n.mainSegmentLoader_.abort(),n.mainSegmentLoader_.pause()}),this.masterPlaylistLoader_.on("mediachange",function(){var t=n.masterPlaylistLoader_.media(),e=1.5*n.masterPlaylistLoader_.targetDuration*1e3;rl(n.masterPlaylistLoader_.master,n.masterPlaylistLoader_.media())?n.requestOptions_.timeout=0:n.requestOptions_.timeout=e,n.mainSegmentLoader_.playlist(t,n.requestOptions_),n.mainSegmentLoader_.load(),n.tech_.trigger({type:"mediachange",bubbles:!0})}),this.masterPlaylistLoader_.on("playlistunchanged",function(){var t=n.masterPlaylistLoader_.media();n.stuckAtPlaylistEnd_(t)&&(n.blacklistCurrentPlaylist({message:"Playlist no longer updating."}),n.tech_.trigger("playliststuck"))}),this.masterPlaylistLoader_.on("renditiondisabled",function(){n.tech_.trigger({type:"usage",name:"hls-rendition-disabled"})}),this.masterPlaylistLoader_.on("renditionenabled",function(){n.tech_.trigger({type:"usage",name:"hls-rendition-enabled"})})}},{key:"triggerPresenceUsage_",value:function(t,e){var i=t.mediaGroups||{},n=!0,r=Object.keys(i.AUDIO);for(var a in i.AUDIO)for(var s in i.AUDIO[a]){i.AUDIO[a][s].uri||(n=!1)}n&&this.tech_.trigger({type:"usage",name:"hls-demuxed"}),Object.keys(i.SUBTITLES).length&&this.tech_.trigger({type:"usage",name:"hls-webvtt"}),Bc.Playlist.isAes(e)&&this.tech_.trigger({type:"usage",name:"hls-aes"}),Bc.Playlist.isFmp4(e)&&this.tech_.trigger({type:"usage",name:"hls-fmp4"}),r.length&&1<Object.keys(i.AUDIO[r[0]]).length&&this.tech_.trigger({type:"usage",name:"hls-alternate-audio"}),this.useCueTags_&&this.tech_.trigger({type:"usage",name:"hls-playlist-cue-tags"})}},{key:"setupSegmentLoaderListeners_",value:function(){var a=this;this.mainSegmentLoader_.on("bandwidthupdate",function(){var t=a.selectPlaylist(),e=a.masterPlaylistLoader_.media(),i=a.tech_.buffered(),n=i.length?i.end(i.length-1)-a.tech_.currentTime():0,r=a.bufferLowWaterLine();(!e.endList||a.duration()<rc.MAX_BUFFER_LOW_WATER_LINE||t.attributes.BANDWIDTH<e.attributes.BANDWIDTH||r<=n)&&a.masterPlaylistLoader_.media(t),a.tech_.trigger("bandwidthupdate")}),this.mainSegmentLoader_.on("progress",function(){a.trigger("progress")}),this.mainSegmentLoader_.on("error",function(){a.blacklistCurrentPlaylist(a.mainSegmentLoader_.error())}),this.mainSegmentLoader_.on("syncinfoupdate",function(){a.onSyncInfoUpdate_()}),this.mainSegmentLoader_.on("timestampoffset",function(){a.tech_.trigger({type:"usage",name:"hls-timestamp-offset"})}),this.audioSegmentLoader_.on("syncinfoupdate",function(){a.onSyncInfoUpdate_()}),this.mainSegmentLoader_.on("ended",function(){a.onEndOfStream()}),this.mainSegmentLoader_.on("earlyabort",function(){a.blacklistCurrentPlaylist({message:"Aborted early because there isn't enough bandwidth to complete the request without rebuffering."},120)}),this.mainSegmentLoader_.on("reseteverything",function(){a.tech_.trigger("hls-reset")}),this.mainSegmentLoader_.on("segmenttimemapping",function(t){a.tech_.trigger({type:"hls-segment-time-mapping",mapping:t.mapping})}),this.audioSegmentLoader_.on("ended",function(){a.onEndOfStream()})}},{key:"mediaSecondsLoaded_",value:function(){return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded+this.mainSegmentLoader_.mediaSecondsLoaded)}},{key:"load",value:function(){this.mainSegmentLoader_.load(),this.mediaTypes_.AUDIO.activePlaylistLoader&&this.audioSegmentLoader_.load(),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&this.subtitleSegmentLoader_.load()}},{key:"smoothQualityChange_",value:function(){var t=this.selectPlaylist();t!==this.masterPlaylistLoader_.media()&&(this.masterPlaylistLoader_.media(t),this.mainSegmentLoader_.resetLoader())}},{key:"fastQualityChange_",value:function(){var t=this,e=this.selectPlaylist();e!==this.masterPlaylistLoader_.media()&&(this.masterPlaylistLoader_.media(e),this.mainSegmentLoader_.resetEverything(function(){Nr.browser.IE_VERSION||Nr.browser.IS_EDGE?t.tech_.setCurrentTime(t.tech_.currentTime()+.04):t.tech_.setCurrentTime(t.tech_.currentTime())}))}},{key:"play",value:function(){if(!this.setupFirstPlay()){this.tech_.ended()&&this.seekTo_(0),this.hasPlayed_()&&this.load();var t=this.tech_.seekable();return this.tech_.duration()===1/0&&this.tech_.currentTime()<t.start(0)?this.seekTo_(t.end(t.length-1)):void 0}}},{key:"setupFirstPlay",value:function(){var t=this,e=this.masterPlaylistLoader_.media();if(!e||this.tech_.paused()||this.hasPlayed_())return!1;if(!e.endList){var i=this.seekable();if(!i.length)return!1;if(Nr.browser.IE_VERSION&&0===this.tech_.readyState())return this.tech_.one("loadedmetadata",function(){t.trigger("firstplay"),t.seekTo_(i.end(0)),t.hasPlayed_=function(){return!0}}),!1;this.trigger("firstplay"),this.seekTo_(i.end(0))}return this.hasPlayed_=function(){return!0},this.load(),!0}},{key:"handleSourceOpen_",value:function(){try{this.setupSourceBuffers_()}catch(t){return Nr.log.warn("Failed to create Source Buffers",t),this.mediaSource.endOfStream("decode")}if(this.tech_.autoplay()){var t=this.tech_.play();"undefined"!=typeof t&&"function"==typeof t.then&&t.then(null,function(t){})}this.trigger("sourceopen")}},{key:"onEndOfStream",value:function(){var t=this.mainSegmentLoader_.ended_;this.mediaTypes_.AUDIO.activePlaylistLoader&&(t=!this.mainSegmentLoader_.startingMedia_||this.mainSegmentLoader_.startingMedia_.containsVideo?t&&this.audioSegmentLoader_.ended_:this.audioSegmentLoader_.ended_),t&&this.mediaSource.endOfStream()}},{key:"stuckAtPlaylistEnd_",value:function(t){if(!this.seekable().length)return!1;var e=this.syncController_.getExpiredTime(t,this.mediaSource.duration);if(null===e)return!1;var i=Bc.Playlist.playlistEnd(t,e),n=this.tech_.currentTime(),r=this.tech_.buffered();if(!r.length)return i-n<=.1;var a=r.end(r.length-1);return a-n<=.1&&i-a<=.1}},{key:"blacklistCurrentPlaylist",value:function(){var t,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},i=arguments[1],n=void 0;if(n=e.playlist||this.masterPlaylistLoader_.media(),i=i||e.blacklistDuration||this.blacklistDuration,!n){this.error=e;try{return this.mediaSource.endOfStream("network")}catch(t){return this.trigger("error")}}var r=1===this.masterPlaylistLoader_.master.playlists.filter(il).length;return r?(Nr.log.warn("Problem encountered with the current HLS playlist. Trying again since it is the final playlist."),this.tech_.trigger("retryplaylist"),this.masterPlaylistLoader_.load(r)):(n.excludeUntil=Date.now()+1e3*i,this.tech_.trigger("blacklistplaylist"),this.tech_.trigger({type:"usage",name:"hls-rendition-blacklisted"}),t=this.selectPlaylist(),Nr.log.warn("Problem encountered with the current HLS playlist."+(e.message?" "+e.message:"")+" Switching to another playlist."),this.masterPlaylistLoader_.media(t))}},{key:"pauseLoading",value:function(){this.mainSegmentLoader_.pause(),this.mediaTypes_.AUDIO.activePlaylistLoader&&this.audioSegmentLoader_.pause(),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&this.subtitleSegmentLoader_.pause()}},{key:"setCurrentTime",value:function(t){var e=yl(this.tech_.buffered(),t);return this.masterPlaylistLoader_&&this.masterPlaylistLoader_.media()&&this.masterPlaylistLoader_.media().segments?e&&e.length?t:(this.mainSegmentLoader_.resetEverything(),this.mainSegmentLoader_.abort(),this.mediaTypes_.AUDIO.activePlaylistLoader&&(this.audioSegmentLoader_.resetEverything(),this.audioSegmentLoader_.abort()),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&(this.subtitleSegmentLoader_.resetEverything(),this.subtitleSegmentLoader_.abort()),void this.load()):0}},{key:"duration",value:function(){return this.masterPlaylistLoader_?this.mediaSource?this.mediaSource.duration:Bc.Playlist.duration(this.masterPlaylistLoader_.media()):0}},{key:"seekable",value:function(){return this.seekable_}},{key:"onSyncInfoUpdate_",value:function(){var t=void 0,e=void 0;if(this.masterPlaylistLoader_){var i=this.masterPlaylistLoader_.media();if(i){var n=this.syncController_.getExpiredTime(i,this.mediaSource.duration);if(null!==n&&0!==(t=Bc.Playlist.seekable(i,n)).length){if(this.mediaTypes_.AUDIO.activePlaylistLoader){if(i=this.mediaTypes_.AUDIO.activePlaylistLoader.media(),null===(n=this.syncController_.getExpiredTime(i,this.mediaSource.duration)))return;if(0===(e=Bc.Playlist.seekable(i,n)).length)return}e?e.start(0)>t.end(0)||t.start(0)>e.end(0)?this.seekable_=t:this.seekable_=Nr.createTimeRanges([[e.start(0)>t.start(0)?e.start(0):t.start(0),e.end(0)<t.end(0)?e.end(0):t.end(0)]]):this.seekable_=t,this.logger_("seekable updated ["+_l(this.seekable_)+"]"),this.tech_.trigger("seekablechanged")}}}}},{key:"updateDuration",value:function(){var e=this,t=this.mediaSource.duration,i=Bc.Playlist.duration(this.masterPlaylistLoader_.media()),n=this.tech_.buffered(),r=function t(){e.mediaSource.duration=i,e.tech_.trigger("durationchange"),e.mediaSource.removeEventListener("sourceopen",t)};0<n.length&&(i=Math.max(i,n.end(n.length-1))),t!==i&&("open"!==this.mediaSource.readyState?this.mediaSource.addEventListener("sourceopen",r):r())}},{key:"dispose",value:function(){var n=this;this.decrypter_.terminate(),this.masterPlaylistLoader_.dispose(),this.mainSegmentLoader_.dispose(),["AUDIO","SUBTITLES"].forEach(function(t){var e=n.mediaTypes_[t].groups;for(var i in e)e[i].forEach(function(t){t.playlistLoader&&t.playlistLoader.dispose()})}),this.audioSegmentLoader_.dispose(),this.subtitleSegmentLoader_.dispose()}},{key:"master",value:function(){return this.masterPlaylistLoader_.master}},{key:"media",value:function(){return this.masterPlaylistLoader_.media()||this.initialMedia_}},{key:"setupSourceBuffers_",value:function(){var t,e=this.masterPlaylistLoader_.media();if(e&&"open"===this.mediaSource.readyState){if((t=Fl(this.masterPlaylistLoader_.master,e)).length<1)return this.error="No compatible SourceBuffer configuration for the variant stream:"+e.resolvedUri,this.mediaSource.endOfStream("decode");this.configureLoaderMimeTypes_(t),this.excludeIncompatibleVariants_(e)}}},{key:"configureLoaderMimeTypes_",value:function(t){var e=1<t.length&&-1===t[0].indexOf(",")&&t[0]!==t[1]?new Nr.EventTarget:null;this.mainSegmentLoader_.mimeType(t[0],e),t[1]&&this.audioSegmentLoader_.mimeType(t[1],e)}},{key:"excludeUnsupportedVariants_",value:function(){this.master().playlists.forEach(function(t){t.attributes.CODECS&&g.MediaSource&&g.MediaSource.isTypeSupported&&!g.MediaSource.isTypeSupported('video/mp4; codecs="'+t.attributes.CODECS.replace(/avc1\.(\d+)\.(\d+)/i,function(t){return Nl([t])[0]})+'"')&&(t.excludeUntil=1/0)})}},{key:"excludeIncompatibleVariants_",value:function(t){var i=2,n=null,e=void 0;t.attributes.CODECS&&(e=Bl(t.attributes.CODECS),n=e.videoCodec,i=e.codecCount),this.master().playlists.forEach(function(t){var e={codecCount:2,videoCodec:null};t.attributes.CODECS&&(e=Bl(t.attributes.CODECS)),e.codecCount!==i&&(t.excludeUntil=1/0),e.videoCodec!==n&&(t.excludeUntil=1/0)})}},{key:"updateAdCues_",value:function(t){var e=0,i=this.seekable();i.length&&(e=i.start(0)),function(t,e){var i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0;if(t.segments)for(var n=i,r=void 0,a=0;a<t.segments.length;a++){var s=t.segments[a];if(r||(r=kc(e,n+s.duration/2)),r){if("cueIn"in s){r.endTime=n,r.adEndTime=n,n+=s.duration,r=null;continue}if(n<r.endTime){n+=s.duration;continue}r.endTime+=s.duration}else if("cueOut"in s&&((r=new g.VTTCue(n,n+s.duration,s.cueOut)).adStartTime=n,r.adEndTime=n+parseFloat(s.cueOut),e.addCue(r)),"cueOutCont"in s){var o,u,l=s.cueOutCont.split("/").map(parseFloat),c=xu(l,2);o=c[0],u=c[1],(r=new g.VTTCue(n,n+s.duration,"")).adStartTime=n-o,r.adEndTime=r.adStartTime+u,e.addCue(r)}n+=s.duration}}(t,this.cueTagsTrack_,e)}},{key:"goalBufferLength",value:function(){var t=this.tech_.currentTime(),e=rc.GOAL_BUFFER_LENGTH,i=rc.GOAL_BUFFER_LENGTH_RATE,n=Math.max(e,rc.MAX_GOAL_BUFFER_LENGTH);return Math.min(e+t*i,n)}},{key:"bufferLowWaterLine",value:function(){var t=this.tech_.currentTime(),e=rc.BUFFER_LOW_WATER_LINE,i=rc.BUFFER_LOW_WATER_LINE_RATE,n=Math.max(e,rc.MAX_BUFFER_LOW_WATER_LINE);return Math.min(e+t*i,n)}}]),p}(),Vc=function t(e,i,n){Pu(this,t);var r,a,s,o=e.masterPlaylistController_.fastQualityChange_.bind(e.masterPlaylistController_);if(i.attributes.RESOLUTION){var u=i.attributes.RESOLUTION;this.width=u.width,this.height=u.height}this.bandwidth=i.attributes.BANDWIDTH,this.id=n,this.enabled=(r=e.playlists,a=i.uri,s=o,function(t){var e=r.master.playlists[a],i=el(e),n=il(e);return"undefined"==typeof t?n:(t?delete e.disabled:e.disabled=!0,t===n||i||(s(),t?r.trigger("renditionenabled"):r.trigger("renditiondisabled")),t)})},qc=["seeking","seeked","pause","playing","error"],zc=function(){function s(t){var e=this;Pu(this,s),this.tech_=t.tech,this.seekable=t.seekable,this.seekTo=t.seekTo,this.consecutiveUpdates=0,this.lastRecordedTime=null,this.timer_=null,this.checkCurrentTimeTimeout_=null,this.logger_=ec("PlaybackWatcher"),this.logger_("initialize");var i=function(){return e.monitorCurrentTime_()},n=function(){return e.techWaiting_()},r=function(){return e.cancelTimer_()},a=function(){return e.fixesBadSeeks_()};this.tech_.on("seekablechanged",a),this.tech_.on("waiting",n),this.tech_.on(qc,r),this.tech_.on("canplay",i),this.dispose=function(){e.logger_("dispose"),e.tech_.off("seekablechanged",a),e.tech_.off("waiting",n),e.tech_.off(qc,r),e.tech_.off("canplay",i),e.checkCurrentTimeTimeout_&&g.clearTimeout(e.checkCurrentTimeTimeout_),e.cancelTimer_()}}return Uu(s,[{key:"monitorCurrentTime_",value:function(){this.checkCurrentTime_(),this.checkCurrentTimeTimeout_&&g.clearTimeout(this.checkCurrentTimeTimeout_),this.checkCurrentTimeTimeout_=g.setTimeout(this.monitorCurrentTime_.bind(this),250)}},{key:"checkCurrentTime_",value:function(){if(this.tech_.seeking()&&this.fixesBadSeeks_())return this.consecutiveUpdates=0,void(this.lastRecordedTime=this.tech_.currentTime());if(!this.tech_.paused()&&!this.tech_.seeking()){var t=this.tech_.currentTime(),e=this.tech_.buffered();if(this.lastRecordedTime===t&&(!e.length||t+.1>=e.end(e.length-1)))return this.techWaiting_();5<=this.consecutiveUpdates&&t===this.lastRecordedTime?(this.consecutiveUpdates++,this.waiting_()):t===this.lastRecordedTime?this.consecutiveUpdates++:(this.consecutiveUpdates=0,this.lastRecordedTime=t)}}},{key:"cancelTimer_",value:function(){this.consecutiveUpdates=0,this.timer_&&(this.logger_("cancelTimer_"),clearTimeout(this.timer_)),this.timer_=null}},{key:"fixesBadSeeks_",value:function(){var t=this.tech_.seeking(),e=this.seekable(),i=this.tech_.currentTime(),n=void 0;t&&this.afterSeekableWindow_(e,i)&&(n=e.end(e.length-1));t&&this.beforeSeekableWindow_(e,i)&&(n=e.start(0)+.1);return"undefined"!=typeof n&&(this.logger_("Trying to seek outside of seekable at time "+i+" with seekable range "+_l(e)+". Seeking to "+n+"."),this.seekTo(n),!0)}},{key:"waiting_",value:function(){if(!this.techWaiting_()){var t=this.tech_.currentTime(),e=this.tech_.buffered(),i=yl(e,t);return i.length&&t+3<=i.end(0)?(this.cancelTimer_(),this.seekTo(t),this.logger_("Stopped at "+t+" while inside a buffered region ["+i.start(0)+" -> "+i.end(0)+"]. Attempting to resume playback by seeking to the current time."),void this.tech_.trigger({type:"usage",name:"hls-unknown-waiting"})):void 0}}},{key:"techWaiting_",value:function(){var t=this.seekable(),e=this.tech_.currentTime();if(this.tech_.seeking()&&this.fixesBadSeeks_())return!0;if(this.tech_.seeking()||null!==this.timer_)return!0;if(this.beforeSeekableWindow_(t,e)){var i=t.end(t.length-1);return this.logger_("Fell out of live window at time "+e+". Seeking to live point (seekable end) "+i),this.cancelTimer_(),this.seekTo(i),this.tech_.trigger({type:"usage",name:"hls-live-resync"}),!0}var n=this.tech_.buffered(),r=vl(n,e);if(this.videoUnderflow_(r,n,e))return this.cancelTimer_(),this.seekTo(e),this.tech_.trigger({type:"usage",name:"hls-video-underflow"}),!0;if(0<r.length){var a=r.start(0)-e;return this.logger_("Stopped at "+e+", setting timer for "+a+", seeking to "+r.start(0)),this.timer_=setTimeout(this.skipTheGap_.bind(this),1e3*a,e),!0}return!1}},{key:"afterSeekableWindow_",value:function(t,e){return!!t.length&&e>t.end(t.length-1)+.1}},{key:"beforeSeekableWindow_",value:function(t,e){return!!(t.length&&0<t.start(0)&&e<t.start(0)-.1)}},{key:"videoUnderflow_",value:function(t,e,i){if(0===t.length){var n=this.gapFromVideoUnderflow_(e,i);if(n)return this.logger_("Encountered a gap in video from "+n.start+" to "+n.end+". Seeking to current time "+i),!0}return!1}},{key:"skipTheGap_",value:function(t){var e=this.tech_.buffered(),i=this.tech_.currentTime(),n=vl(e,i);this.cancelTimer_(),0!==n.length&&i===t&&(this.logger_("skipTheGap_:","currentTime:",i,"scheduled currentTime:",t,"nextRange start:",n.start(0)),this.seekTo(n.start(0)+ml),this.tech_.trigger({type:"usage",name:"hls-gap-skip"}))}},{key:"gapFromVideoUnderflow_",value:function(t,e){for(var i=function(t){if(t.length<2)return Nr.createTimeRanges();for(var e=[],i=1;i<t.length;i++){var n=t.end(i-1),r=t.start(i);e.push([n,r])}return Nr.createTimeRanges(e)}(t),n=0;n<i.length;n++){var r=i.start(n),a=i.end(n);if(e-r<4&&2<e-r)return{start:r,end:a}}return null}}]),s}(),Wc={errorInterval:30,getSource:function(t){return t(this.tech({IWillNotUseThisInPlugins:!0}).currentSource_)}},Gc=function(t){!function e(i,t){var n=0,r=0,a=Nr.mergeOptions(Wc,t);i.ready(function(){i.trigger({type:"usage",name:"hls-error-reload-initialized"})});var s=function(){r&&i.currentTime(r)},o=function(t){null!=t&&(r=i.duration()!==1/0&&i.currentTime()||0,i.one("loadedmetadata",s),i.src(t),i.trigger({type:"usage",name:"hls-error-reload"}),i.play())},u=function(){if(Date.now()-n<1e3*a.errorInterval)i.trigger({type:"usage",name:"hls-error-reload-canceled"});else{if(a.getSource&&"function"==typeof a.getSource)return n=Date.now(),a.getSource.call(i,o);Nr.log.error("ERROR: reloadSourceOnError - The option getSource must be a function!")}},l=function t(){i.off("loadedmetadata",s),i.off("error",u),i.off("dispose",t)};i.on("error",u),i.on("dispose",l),i.reloadSourceOnError=function(t){l(),e(i,t)}}(this,t)};Nr.use("*",function(e){return{setSource:function(t,e){e(null,t)},setCurrentTime:function(t){return e.vhs&&e.currentSource().src===e.vhs.source_.src&&e.vhs.setCurrentTime(t),t},play:function(){e.vhs&&e.currentSource().src===e.vhs.source_.src&&e.vhs.setCurrentTime(e.currentTime())}}});var Xc={PlaylistLoader:qu,Playlist:al,Decrypter:Lu,AsyncStream:wu,decrypt:Au,utils:fl,STANDARD_PLAYLIST_SELECTOR:function(){return function(t,e,i,n){var r=t.playlists.map(function(t){var e,i;return e=t.attributes.RESOLUTION&&t.attributes.RESOLUTION.width,i=t.attributes.RESOLUTION&&t.attributes.RESOLUTION.height,{bandwidth:t.attributes.BANDWIDTH||g.Number.MAX_VALUE,width:e,height:i,playlist:t}});mc(r,function(t,e){return t.bandwidth-e.bandwidth});var a=(r=r.filter(function(t){return!al.isIncompatible(t.playlist)})).filter(function(t){return al.isEnabled(t.playlist)});a.length||(a=r.filter(function(t){return!al.isDisabled(t.playlist)}));var s=a.filter(function(t){return t.bandwidth*rc.BANDWIDTH_VARIANCE<e}),o=s[s.length-1],u=s.filter(function(t){return t.bandwidth===o.bandwidth})[0],l=s.filter(function(t){return t.width&&t.height});mc(l,function(t,e){return t.width-e.width});var c=l.filter(function(t){return t.width===i&&t.height===n});o=c[c.length-1];var h=c.filter(function(t){return t.bandwidth===o.bandwidth})[0],d=void 0,p=void 0,f=void 0;h||(p=(d=l.filter(function(t){return t.width>i||t.height>n})).filter(function(t){return t.width===d[0].width&&t.height===d[0].height}),o=p[p.length-1],f=p.filter(function(t){return t.bandwidth===o.bandwidth})[0]);var m=f||h||u||a[0]||r[0];return m?m.playlist:null}(this.playlists.master,this.systemBandwidth,parseInt(fc(this.tech_.el(),"width"),10),parseInt(fc(this.tech_.el(),"height"),10))},INITIAL_PLAYLIST_SELECTOR:function(){var t=this.playlists.master.playlists.filter(al.isEnabled);return mc(t,function(t,e){return gc(t,e)}),t.filter(function(t){return Bl(t.attributes.CODECS).videoCodec})[0]||null},comparePlaylistBandwidth:gc,comparePlaylistResolution:function(t,e){var i=void 0,n=void 0;return t.attributes.RESOLUTION&&t.attributes.RESOLUTION.width&&(i=t.attributes.RESOLUTION.width),i=i||g.Number.MAX_VALUE,e.attributes.RESOLUTION&&e.attributes.RESOLUTION.width&&(n=e.attributes.RESOLUTION.width),i===(n=n||g.Number.MAX_VALUE)&&t.attributes.BANDWIDTH&&e.attributes.BANDWIDTH?t.attributes.BANDWIDTH-e.attributes.BANDWIDTH:i-n},xhr:ul()};["GOAL_BUFFER_LENGTH","MAX_GOAL_BUFFER_LENGTH","GOAL_BUFFER_LENGTH_RATE","BUFFER_LOW_WATER_LINE","MAX_BUFFER_LOW_WATER_LINE","BUFFER_LOW_WATER_LINE_RATE","BANDWIDTH_VARIANCE"].forEach(function(e){Object.defineProperty(Xc,e,{get:function(){return Nr.log.warn("using Hls."+e+" is UNSAFE be sure you know what you are doing"),rc[e]},set:function(t){Nr.log.warn("using Hls."+e+" is UNSAFE be sure you know what you are doing"),"number"!=typeof t||t<0?Nr.log.warn("value of Hls."+e+" must be greater than or equal to 0"):rc[e]=t}})});var Yc=function(t){if(/^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i.test(t))return"hls";return/^application\/dash\+xml/i.test(t)?"dash":null},$c=function(t,e){for(var i=e.media(),n=-1,r=0;r<t.length;r++)if(t[r].id===i.uri){n=r;break}t.selectedIndex_=n,t.trigger({selectedIndex:n,type:"change"})};Xc.canPlaySource=function(){return Nr.log.warn("HLS is no longer a tech. Please remove it from your player's techOrder.")};var Kc=function(t){if("dash"===t.options_.sourceType){var e=Nr.players[t.tech_.options_.playerId];if(e.eme){var i=function(t,e,i){if(!t)return t;var n={};for(var r in t)n[r]={audioContentType:'audio/mp4; codecs="'+i.attributes.CODECS+'"',videoContentType:'video/mp4; codecs="'+e.attributes.CODECS+'"'},e.contentProtection&&e.contentProtection[r]&&e.contentProtection[r].pssh&&(n[r].pssh=e.contentProtection[r].pssh),"string"==typeof t[r]&&(n[r].url=t[r]);return Nr.mergeOptions(t,n)}(t.source_.keySystems,t.playlists.media(),t.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());i&&(e.currentSource().keySystems=i)}}};Xc.supportsNativeHls=function(){var e=p.createElement("video");if(!Nr.getTech("Html5").isSupported())return!1;return["application/vnd.apple.mpegurl","audio/mpegurl","audio/x-mpegurl","application/x-mpegurl","video/x-mpegurl","video/mpegurl","application/mpegurl"].some(function(t){return/maybe|probably/i.test(e.canPlayType(t))})}(),Xc.supportsNativeDash=!!Nr.getTech("Html5").isSupported()&&/maybe|probably/i.test(p.createElement("video").canPlayType("application/dash+xml")),Xc.supportsTypeNatively=function(t){return"hls"===t?Xc.supportsNativeHls:"dash"===t&&Xc.supportsNativeDash},Xc.isSupported=function(){return Nr.log.warn("HLS is no longer a tech. Please remove it from your player's techOrder.")};var Jc=Nr.getComponent("Component"),Qc=function(t){function a(t,e,i){Pu(this,a);var n=Du(this,(a.__proto__||Object.getPrototypeOf(a)).call(this,e,i.hls));if(e.options_&&e.options_.playerId){var r=Nr(e.options_.playerId);r.hasOwnProperty("hls")||Object.defineProperty(r,"hls",{get:function(){return Nr.log.warn("player.hls is deprecated. Use player.tech().hls instead."),e.trigger({type:"usage",name:"hls-player-access"}),n}}),r.vhs=n,r.dash=n}if(n.tech_=e,n.source_=t,n.stats={},n.setOptions_(),n.options_.overrideNative&&e.overrideNativeAudioTracks&&e.overrideNativeVideoTracks)e.overrideNativeAudioTracks(!0),e.overrideNativeVideoTracks(!0);else if(n.options_.overrideNative&&(e.featuresNativeVideoTracks||e.featuresNativeAudioTracks))throw new Error("Overriding native HLS requires emulated tracks. See https://git.io/vMpjB");return n.on(p,["fullscreenchange","webkitfullscreenchange","mozfullscreenchange","MSFullscreenChange"],function(t){var e=p.fullscreenElement||p.webkitFullscreenElement||p.mozFullScreenElement||p.msFullscreenElement;e&&e.contains(n.tech_.el())&&n.masterPlaylistController_.smoothQualityChange_()}),n.on(n.tech_,"error",function(){this.masterPlaylistController_&&this.masterPlaylistController_.pauseLoading()}),n.on(n.tech_,"play",n.play),n}return Iu(a,Jc),Uu(a,[{key:"setOptions_",value:function(){var e=this;this.options_.withCredentials=this.options_.withCredentials||!1,"number"!=typeof this.options_.blacklistDuration&&(this.options_.blacklistDuration=300),"number"!=typeof this.options_.bandwidth&&(this.options_.bandwidth=4194304),this.options_.enableLowInitialPlaylist=this.options_.enableLowInitialPlaylist&&4194304===this.options_.bandwidth,["withCredentials","bandwidth"].forEach(function(t){"undefined"!=typeof e.source_[t]&&(e.options_[t]=e.source_[t])}),this.bandwidth=this.options_.bandwidth}},{key:"src",value:function(t,e){var n=this;t&&(this.setOptions_(),this.options_.url=this.source_.src,this.options_.tech=this.tech_,this.options_.externHls=Xc,this.options_.sourceType=Yc(e),this.options_.seekTo=function(t){n.tech_.setCurrentTime(t),n.setCurrentTime(t)},this.masterPlaylistController_=new Hc(this.options_),this.playbackWatcher_=new zc(Nr.mergeOptions(this.options_,{seekable:function(){return n.seekable()}})),this.masterPlaylistController_.on("error",function(){Nr.players[n.tech_.options_.playerId].error(n.masterPlaylistController_.error)}),this.masterPlaylistController_.selectPlaylist=this.selectPlaylist?this.selectPlaylist.bind(this):Xc.STANDARD_PLAYLIST_SELECTOR.bind(this),this.masterPlaylistController_.selectInitialPlaylist=Xc.INITIAL_PLAYLIST_SELECTOR.bind(this),this.playlists=this.masterPlaylistController_.masterPlaylistLoader_,this.mediaSource=this.masterPlaylistController_.mediaSource,Object.defineProperties(this,{selectPlaylist:{get:function(){return this.masterPlaylistController_.selectPlaylist},set:function(t){this.masterPlaylistController_.selectPlaylist=t.bind(this)}},throughput:{get:function(){return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate},set:function(t){this.masterPlaylistController_.mainSegmentLoader_.throughput.rate=t,this.masterPlaylistController_.mainSegmentLoader_.throughput.count=1}},bandwidth:{get:function(){return this.masterPlaylistController_.mainSegmentLoader_.bandwidth},set:function(t){this.masterPlaylistController_.mainSegmentLoader_.bandwidth=t,this.masterPlaylistController_.mainSegmentLoader_.throughput={rate:0,count:0}}},systemBandwidth:{get:function(){var t=1/(this.bandwidth||1),e=void 0;return e=0<this.throughput?1/this.throughput:0,Math.floor(1/(t+e))},set:function(){Nr.log.error('The "systemBandwidth" property is read-only')}}}),Object.defineProperties(this.stats,{bandwidth:{get:function(){return n.bandwidth||0},enumerable:!0},mediaRequests:{get:function(){return n.masterPlaylistController_.mediaRequests_()||0},enumerable:!0},mediaRequestsAborted:{get:function(){return n.masterPlaylistController_.mediaRequestsAborted_()||0},enumerable:!0},mediaRequestsTimedout:{get:function(){return n.masterPlaylistController_.mediaRequestsTimedout_()||0},enumerable:!0},mediaRequestsErrored:{get:function(){return n.masterPlaylistController_.mediaRequestsErrored_()||0},enumerable:!0},mediaTransferDuration:{get:function(){return n.masterPlaylistController_.mediaTransferDuration_()||0},enumerable:!0},mediaBytesTransferred:{get:function(){return n.masterPlaylistController_.mediaBytesTransferred_()||0},enumerable:!0},mediaSecondsLoaded:{get:function(){return n.masterPlaylistController_.mediaSecondsLoaded_()||0},enumerable:!0},buffered:{get:function(){return bl(n.tech_.buffered())},enumerable:!0},currentTime:{get:function(){return n.tech_.currentTime()},enumerable:!0},currentSource:{get:function(){return n.tech_.currentSource_},enumerable:!0},currentTech:{get:function(){return n.tech_.name_},enumerable:!0},duration:{get:function(){return n.tech_.duration()},enumerable:!0},master:{get:function(){return n.playlists.master},enumerable:!0},playerDimensions:{get:function(){return n.tech_.currentDimensions()},enumerable:!0},seekable:{get:function(){return bl(n.tech_.seekable())},enumerable:!0},timestamp:{get:function(){return Date.now()},enumerable:!0},videoPlaybackQuality:{get:function(){return n.tech_.getVideoPlaybackQuality()},enumerable:!0}}),this.tech_.one("canplay",this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_)),this.masterPlaylistController_.on("selectedinitialmedia",function(){var i,t;t=(i=n).playlists,i.representations=function(){return t.master.playlists.filter(function(t){return!el(t)}).map(function(t,e){return new Vc(i,t,t.uri)})},Kc(n)}),this.on(this.masterPlaylistController_,"progress",function(){this.tech_.trigger("progress")}),this.tech_.ready(function(){return n.setupQualityLevels_()}),this.tech_.el()&&this.tech_.src(Nr.URL.createObjectURL(this.masterPlaylistController_.mediaSource)))}},{key:"setupQualityLevels_",value:function(){var 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Nr.URL||(Nr.MediaSource=$l,Nr.URL=Kl),$l.supportsNativeMediaSources()&&Nr.getTech("Html5").registerSourceHandler(Zc,0),Nr.HlsHandler=Qc,Nr.HlsSourceHandler=Zc,Nr.Hls=Xc,Nr.use||Nr.registerComponent("Hls",Xc),Nr.options.hls=Nr.options.hls||{},Nr.registerPlugin?Nr.registerPlugin("reloadSourceOnError",Gc):Nr.plugin("reloadSourceOnError",Gc),Nr}); \ No newline at end of file
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new file mode 100644
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diff --git a/assets/netcut/lib/videojs/font/VideoJS.ttf b/assets/netcut/lib/videojs/font/VideoJS.ttf
new file mode 100644
index 0000000..759a976
--- /dev/null
+++ b/assets/netcut/lib/videojs/font/VideoJS.ttf
Binary files differ
diff --git a/assets/netcut/lib/videojs/font/VideoJS.woff b/assets/netcut/lib/videojs/font/VideoJS.woff
new file mode 100644
index 0000000..3133868
--- /dev/null
+++ b/assets/netcut/lib/videojs/font/VideoJS.woff
Binary files differ
diff --git a/assets/netcut/lib/videojs/lang/de.js b/assets/netcut/lib/videojs/lang/de.js
new file mode 100644
index 0000000..cf6f62b
--- /dev/null
+++ b/assets/netcut/lib/videojs/lang/de.js
@@ -0,0 +1,84 @@
+videojs.addLanguage("de",{
+ "Play": "Wiedergabe",
+ "Pause": "Pause",
+ "Replay": "Erneut abspielen",
+ "Current Time": "Aktueller Zeitpunkt",
+ "Duration": "Dauer",
+ "Remaining Time": "Verbleibende Zeit",
+ "Stream Type": "Streamtyp",
+ "LIVE": "LIVE",
+ "Loaded": "Geladen",
+ "Progress": "Status",
+ "Fullscreen": "Vollbild",
+ "Non-Fullscreen": "Kein Vollbild",
+ "Mute": "Ton aus",
+ "Unmute": "Ton ein",
+ "Playback Rate": "Wiedergabegeschwindigkeit",
+ "Subtitles": "Untertitel",
+ "subtitles off": "Untertitel aus",
+ "Captions": "Untertitel",
+ "captions off": "Untertitel aus",
+ "Chapters": "Kapitel",
+ "You aborted the media playback": "Sie haben die Videowiedergabe abgebrochen.",
+ "A network error caused the media download to fail part-way.": "Der Videodownload ist aufgrund eines Netzwerkfehlers fehlgeschlagen.",
+ "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Das Video konnte nicht geladen werden, da entweder ein Server- oder Netzwerkfehler auftrat oder das Format nicht unterstützt wird.",
+ "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Die Videowiedergabe wurde entweder wegen eines Problems mit einem beschädigten Video oder wegen verwendeten Funktionen, die vom Browser nicht unterstützt werden, abgebrochen.",
+ "No compatible source was found for this media.": "Für dieses Video wurde keine kompatible Quelle gefunden.",
+ "Play Video": "Video abspielen",
+ "Close": "Schließen",
+ "Modal Window": "Modales Fenster",
+ "This is a modal window": "Dies ist ein modales Fenster",
+ "This modal can be closed by pressing the Escape key or activating the close button.": "Durch Drücken der Esc-Taste bzw. Betätigung der Schaltfläche \"Schließen\" wird dieses modale Fenster geschlossen.",
+ ", opens captions settings dialog": ", öffnet Einstellungen für Untertitel",
+ ", opens subtitles settings dialog": ", öffnet Einstellungen für Untertitel",
+ ", selected": ", ausgewählt",
+ "captions settings": "Untertiteleinstellungen",
+ "subtitles settings": "Untertiteleinstellungen",
+ "descriptions settings": "Einstellungen für Beschreibungen",
+ "Close Modal Dialog": "Modales Fenster schließen",
+ "Descriptions": "Beschreibungen",
+ "descriptions off": "Beschreibungen aus",
+ "The media is encrypted and we do not have the keys to decrypt it.": "Die Entschlüsselungsschlüssel für den verschlüsselten Medieninhalt sind nicht verfügbar.",
+ ", opens descriptions settings dialog": ", öffnet Einstellungen für Beschreibungen",
+ "Audio Track": "Tonspur",
+ "Text": "Schrift",
+ "White": "Weiß",
+ "Black": "Schwarz",
+ "Red": "Rot",
+ "Green": "Grün",
+ "Blue": "Blau",
+ "Yellow": "Gelb",
+ "Magenta": "Magenta",
+ "Cyan": "Türkis",
+ "Background": "Hintergrund",
+ "Window": "Fenster",
+ "Transparent": "Durchsichtig",
+ "Semi-Transparent": "Halbdurchsichtig",
+ "Opaque": "Undurchsictig",
+ "Font Size": "Schriftgröße",
+ "Text Edge Style": "Textkantenstil",
+ "None": "Kein",
+ "Raised": "Erhoben",
+ "Depressed": "Gedrückt",
+ "Uniform": "Uniform",
+ "Dropshadow": "Schlagschatten",
+ "Font Family": "Schristfamilie",
+ "Proportional Sans-Serif": "Proportionale Sans-Serif",
+ "Monospace Sans-Serif": "Monospace Sans-Serif",
+ "Proportional Serif": "Proportionale Serif",
+ "Monospace Serif": "Monospace Serif",
+ "Casual": "Zwanglos",
+ "Script": "Schreibeschrift",
+ "Small Caps": "Small-Caps",
+ "Reset": "Zurücksetzen",
+ "restore all settings to the default values": "Alle Einstellungen auf die Standardwerte zurücksetzen",
+ "Done": "Fertig",
+ "Caption Settings Dialog": "Einstellungsdialog für Untertitel",
+ "Beginning of dialog window. Escape will cancel and close the window.": "Anfang des Dialogfensters. Esc bricht ab und schließt das Fenster.",
+ "End of dialog window.": "Ende des Dialogfensters.",
+ "Audio Player": "Audio-Player",
+ "Video Player": "Video-Player",
+ "Progress Bar": "Forschrittsbalken",
+ "progress bar timing: currentTime={1} duration={2}": "{1} von {2}",
+ "Volume Level": "Lautstärkestufe"
+}); \ No newline at end of file
diff --git a/assets/netcut/lib/videojs/lang/en.js b/assets/netcut/lib/videojs/lang/en.js
new file mode 100644
index 0000000..8384bf8
--- /dev/null
+++ b/assets/netcut/lib/videojs/lang/en.js
@@ -0,0 +1,85 @@
+videojs.addLanguage("en",{
+ "Audio Player": "Audio Player",
+ "Video Player": "Video Player",
+ "Play": "Play",
+ "Pause": "Pause",
+ "Replay": "Replay",
+ "Current Time": "Current Time",
+ "Duration": "Duration",
+ "Remaining Time": "Remaining Time",
+ "Stream Type": "Stream Type",
+ "LIVE": "LIVE",
+ "Loaded": "Loaded",
+ "Progress": "Progress",
+ "Progress Bar": "Progress Bar",
+ "progress bar timing: currentTime={1} duration={2}": "{1} of {2}",
+ "Fullscreen": "Fullscreen",
+ "Non-Fullscreen": "Non-Fullscreen",
+ "Mute": "Mute",
+ "Unmute": "Unmute",
+ "Playback Rate": "Playback Rate",
+ "Subtitles": "Subtitles",
+ "subtitles off": "subtitles off",
+ "Captions": "Captions",
+ "captions off": "captions off",
+ "Chapters": "Chapters",
+ "Descriptions": "Descriptions",
+ "descriptions off": "descriptions off",
+ "Audio Track": "Audio Track",
+ "Volume Level": "Volume Level",
+ "You aborted the media playback": "You aborted the media playback",
+ "A network error caused the media download to fail part-way.": "A network error caused the media download to fail part-way.",
+ "The media could not be loaded, either because the server or network failed or because the format is not supported.": "The media could not be loaded, either because the server or network failed or because the format is not supported.",
+ "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.",
+ "No compatible source was found for this media.": "No compatible source was found for this media.",
+ "The media is encrypted and we do not have the keys to decrypt it.": "The media is encrypted and we do not have the keys to decrypt it.",
+ "Play Video": "Play Video",
+ "Close": "Close",
+ "Close Modal Dialog": "Close Modal Dialog",
+ "Modal Window": "Modal Window",
+ "This is a modal window": "This is a modal window",
+ "This modal can be closed by pressing the Escape key or activating the close button.": "This modal can be closed by pressing the Escape key or activating the close button.",
+ ", opens captions settings dialog": ", opens captions settings dialog",
+ ", opens subtitles settings dialog": ", opens subtitles settings dialog",
+ ", opens descriptions settings dialog": ", opens descriptions settings dialog",
+ ", selected": ", selected",
+ "captions settings": "captions settings",
+ "subtitles settings": "subititles settings",
+ "descriptions settings": "descriptions settings",
+ "Text": "Text",
+ "White": "White",
+ "Black": "Black",
+ "Red": "Red",
+ "Green": "Green",
+ "Blue": "Blue",
+ "Yellow": "Yellow",
+ "Magenta": "Magenta",
+ "Cyan": "Cyan",
+ "Background": "Background",
+ "Window": "Window",
+ "Transparent": "Transparent",
+ "Semi-Transparent": "Semi-Transparent",
+ "Opaque": "Opaque",
+ "Font Size": "Font Size",
+ "Text Edge Style": "Text Edge Style",
+ "None": "None",
+ "Raised": "Raised",
+ "Depressed": "Depressed",
+ "Uniform": "Uniform",
+ "Dropshadow": "Dropshadow",
+ "Font Family": "Font Family",
+ "Proportional Sans-Serif": "Proportional Sans-Serif",
+ "Monospace Sans-Serif": "Monospace Sans-Serif",
+ "Proportional Serif": "Proportional Serif",
+ "Monospace Serif": "Monospace Serif",
+ "Casual": "Casual",
+ "Script": "Script",
+ "Small Caps": "Small Caps",
+ "Reset": "Reset",
+ "restore all settings to the default values": "restore all settings to the default values",
+ "Done": "Done",
+ "Caption Settings Dialog": "Caption Settings Dialog",
+ "Beginning of dialog window. Escape will cancel and close the window.": "Beginning of dialog window. Escape will cancel and close the window.",
+ "End of dialog window.": "End of dialog window.",
+ "{1} is loading.": "{1} is loading."
+}); \ No newline at end of file
diff --git a/assets/netcut/lib/videojs/video-js.css b/assets/netcut/lib/videojs/video-js.css
new file mode 100644
index 0000000..1402829
--- /dev/null
+++ b/assets/netcut/lib/videojs/video-js.css
@@ -0,0 +1,1279 @@
+.video-js .vjs-big-play-button .vjs-icon-placeholder:before, .vjs-button > .vjs-icon-placeholder:before, .video-js .vjs-modal-dialog, .vjs-modal-dialog .vjs-modal-dialog-content {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%; }
+
+.video-js .vjs-big-play-button .vjs-icon-placeholder:before, .vjs-button > .vjs-icon-placeholder:before {
+ text-align: center; }
+
+@font-face {
+ font-family: VideoJS;
+ src: url(data:application/font-woff;charset=utf-8;base64,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) format("woff");
+ font-weight: normal;
+ font-style: normal; }
+
+.vjs-icon-play, .video-js .vjs-big-play-button .vjs-icon-placeholder:before, .video-js .vjs-play-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-play:before, .video-js .vjs-big-play-button .vjs-icon-placeholder:before, .video-js .vjs-play-control .vjs-icon-placeholder:before {
+ content: "\f101"; }
+
+.vjs-icon-play-circle {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-play-circle:before {
+ content: "\f102"; }
+
+.vjs-icon-pause, .video-js .vjs-play-control.vjs-playing .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-pause:before, .video-js .vjs-play-control.vjs-playing .vjs-icon-placeholder:before {
+ content: "\f103"; }
+
+.vjs-icon-volume-mute, .video-js .vjs-mute-control.vjs-vol-0 .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-mute:before, .video-js .vjs-mute-control.vjs-vol-0 .vjs-icon-placeholder:before {
+ content: "\f104"; }
+
+.vjs-icon-volume-low, .video-js .vjs-mute-control.vjs-vol-1 .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-low:before, .video-js .vjs-mute-control.vjs-vol-1 .vjs-icon-placeholder:before {
+ content: "\f105"; }
+
+.vjs-icon-volume-mid, .video-js .vjs-mute-control.vjs-vol-2 .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-mid:before, .video-js .vjs-mute-control.vjs-vol-2 .vjs-icon-placeholder:before {
+ content: "\f106"; }
+
+.vjs-icon-volume-high, .video-js .vjs-mute-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-volume-high:before, .video-js .vjs-mute-control .vjs-icon-placeholder:before {
+ content: "\f107"; }
+
+.vjs-icon-fullscreen-enter, .video-js .vjs-fullscreen-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-fullscreen-enter:before, .video-js .vjs-fullscreen-control .vjs-icon-placeholder:before {
+ content: "\f108"; }
+
+.vjs-icon-fullscreen-exit, .video-js.vjs-fullscreen .vjs-fullscreen-control .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-fullscreen-exit:before, .video-js.vjs-fullscreen .vjs-fullscreen-control .vjs-icon-placeholder:before {
+ content: "\f109"; }
+
+.vjs-icon-square {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-square:before {
+ content: "\f10a"; }
+
+.vjs-icon-spinner {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-spinner:before {
+ content: "\f10b"; }
+
+.vjs-icon-subtitles, .video-js .vjs-subtitles-button .vjs-icon-placeholder, .video-js .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-GB) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-IE) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-AU) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js.video-js:lang(en-NZ) .vjs-subs-caps-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-subtitles:before, .video-js .vjs-subtitles-button .vjs-icon-placeholder:before, .video-js .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-GB) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-IE) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-AU) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js.video-js:lang(en-NZ) .vjs-subs-caps-button .vjs-icon-placeholder:before {
+ content: "\f10c"; }
+
+.vjs-icon-captions, .video-js .vjs-captions-button .vjs-icon-placeholder, .video-js:lang(en) .vjs-subs-caps-button .vjs-icon-placeholder,
+.video-js:lang(fr-CA) .vjs-subs-caps-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-captions:before, .video-js .vjs-captions-button .vjs-icon-placeholder:before, .video-js:lang(en) .vjs-subs-caps-button .vjs-icon-placeholder:before,
+ .video-js:lang(fr-CA) .vjs-subs-caps-button .vjs-icon-placeholder:before {
+ content: "\f10d"; }
+
+.vjs-icon-chapters, .video-js .vjs-chapters-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-chapters:before, .video-js .vjs-chapters-button .vjs-icon-placeholder:before {
+ content: "\f10e"; }
+
+.vjs-icon-share {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-share:before {
+ content: "\f10f"; }
+
+.vjs-icon-cog {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-cog:before {
+ content: "\f110"; }
+
+.vjs-icon-circle, .video-js .vjs-play-progress, .video-js .vjs-volume-level {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-circle:before, .video-js .vjs-play-progress:before, .video-js .vjs-volume-level:before {
+ content: "\f111"; }
+
+.vjs-icon-circle-outline {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-circle-outline:before {
+ content: "\f112"; }
+
+.vjs-icon-circle-inner-circle {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-circle-inner-circle:before {
+ content: "\f113"; }
+
+.vjs-icon-hd {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-hd:before {
+ content: "\f114"; }
+
+.vjs-icon-cancel, .video-js .vjs-control.vjs-close-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-cancel:before, .video-js .vjs-control.vjs-close-button .vjs-icon-placeholder:before {
+ content: "\f115"; }
+
+.vjs-icon-replay, .video-js .vjs-play-control.vjs-ended .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-replay:before, .video-js .vjs-play-control.vjs-ended .vjs-icon-placeholder:before {
+ content: "\f116"; }
+
+.vjs-icon-facebook {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-facebook:before {
+ content: "\f117"; }
+
+.vjs-icon-gplus {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-gplus:before {
+ content: "\f118"; }
+
+.vjs-icon-linkedin {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-linkedin:before {
+ content: "\f119"; }
+
+.vjs-icon-twitter {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-twitter:before {
+ content: "\f11a"; }
+
+.vjs-icon-tumblr {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-tumblr:before {
+ content: "\f11b"; }
+
+.vjs-icon-pinterest {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-pinterest:before {
+ content: "\f11c"; }
+
+.vjs-icon-audio-description, .video-js .vjs-descriptions-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-audio-description:before, .video-js .vjs-descriptions-button .vjs-icon-placeholder:before {
+ content: "\f11d"; }
+
+.vjs-icon-audio, .video-js .vjs-audio-button .vjs-icon-placeholder {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-audio:before, .video-js .vjs-audio-button .vjs-icon-placeholder:before {
+ content: "\f11e"; }
+
+.vjs-icon-next-item {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-next-item:before {
+ content: "\f11f"; }
+
+.vjs-icon-previous-item {
+ font-family: VideoJS;
+ font-weight: normal;
+ font-style: normal; }
+ .vjs-icon-previous-item:before {
+ content: "\f120"; }
+
+.video-js {
+ display: block;
+ vertical-align: top;
+ box-sizing: border-box;
+ color: #fff;
+ background-color: #000;
+ position: relative;
+ padding: 0;
+ font-size: 10px;
+ line-height: 1;
+ font-weight: normal;
+ font-style: normal;
+ font-family: Arial, Helvetica, sans-serif;
+ word-break: initial; }
+ .video-js:-moz-full-screen {
+ position: absolute; }
+ .video-js:-webkit-full-screen {
+ width: 100% !important;
+ height: 100% !important; }
+
+.video-js[tabindex="-1"] {
+ outline: none; }
+
+.video-js *,
+.video-js *:before,
+.video-js *:after {
+ box-sizing: inherit; }
+
+.video-js ul {
+ font-family: inherit;
+ font-size: inherit;
+ line-height: inherit;
+ list-style-position: outside;
+ margin-left: 0;
+ margin-right: 0;
+ margin-top: 0;
+ margin-bottom: 0; }
+
+.video-js.vjs-fluid,
+.video-js.vjs-16-9,
+.video-js.vjs-4-3 {
+ width: 100%;
+ max-width: 100%;
+ height: 0; }
+
+.video-js.vjs-16-9 {
+ padding-top: 56.25%; }
+
+.video-js.vjs-4-3 {
+ padding-top: 75%; }
+
+.video-js.vjs-fill {
+ width: 100%;
+ height: 100%; }
+
+.video-js .vjs-tech {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%; }
+
+body.vjs-full-window {
+ padding: 0;
+ margin: 0;
+ height: 100%; }
+
+.vjs-full-window .video-js.vjs-fullscreen {
+ position: fixed;
+ overflow: hidden;
+ z-index: 1000;
+ left: 0;
+ top: 0;
+ bottom: 0;
+ right: 0; }
+
+.video-js.vjs-fullscreen {
+ width: 100% !important;
+ height: 100% !important;
+ padding-top: 0 !important; }
+
+.video-js.vjs-fullscreen.vjs-user-inactive {
+ cursor: none; }
+
+.vjs-hidden {
+ display: none !important; }
+
+.vjs-disabled {
+ opacity: 0.5;
+ cursor: default; }
+
+.video-js .vjs-offscreen {
+ height: 1px;
+ left: -9999px;
+ position: absolute;
+ top: 0;
+ width: 1px; }
+
+.vjs-lock-showing {
+ display: block !important;
+ opacity: 1;
+ visibility: visible; }
+
+.vjs-no-js {
+ padding: 20px;
+ color: #fff;
+ background-color: #000;
+ font-size: 18px;
+ font-family: Arial, Helvetica, sans-serif;
+ text-align: center;
+ width: 300px;
+ height: 150px;
+ margin: 0px auto; }
+
+.vjs-no-js a,
+.vjs-no-js a:visited {
+ color: #66A8CC; }
+
+.video-js .vjs-big-play-button {
+ font-size: 3em;
+ line-height: 1.5em;
+ height: 1.5em;
+ width: 3em;
+ display: block;
+ position: absolute;
+ top: 10px;
+ left: 10px;
+ padding: 0;
+ cursor: pointer;
+ opacity: 1;
+ border: 0.06666em solid #fff;
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7);
+ border-radius: 0.3em;
+ transition: all 0.4s; }
+
+.vjs-big-play-centered .vjs-big-play-button {
+ top: 50%;
+ left: 50%;
+ margin-top: -0.75em;
+ margin-left: -1.5em; }
+
+.video-js:hover .vjs-big-play-button,
+.video-js .vjs-big-play-button:focus {
+ border-color: #fff;
+ background-color: #73859f;
+ background-color: rgba(115, 133, 159, 0.5);
+ transition: all 0s; }
+
+.vjs-controls-disabled .vjs-big-play-button,
+.vjs-has-started .vjs-big-play-button,
+.vjs-using-native-controls .vjs-big-play-button,
+.vjs-error .vjs-big-play-button {
+ display: none; }
+
+.vjs-has-started.vjs-paused.vjs-show-big-play-button-on-pause .vjs-big-play-button {
+ display: block; }
+
+.video-js button {
+ background: none;
+ border: none;
+ color: inherit;
+ display: inline-block;
+ font-size: inherit;
+ line-height: inherit;
+ text-transform: none;
+ text-decoration: none;
+ transition: none;
+ -webkit-appearance: none;
+ -moz-appearance: none;
+ appearance: none; }
+
+.vjs-control .vjs-button {
+ width: 100%;
+ height: 100%; }
+
+.video-js .vjs-control.vjs-close-button {
+ cursor: pointer;
+ height: 3em;
+ position: absolute;
+ right: 0;
+ top: 0.5em;
+ z-index: 2; }
+
+.video-js .vjs-modal-dialog {
+ background: rgba(0, 0, 0, 0.8);
+ background: linear-gradient(180deg, rgba(0, 0, 0, 0.8), rgba(255, 255, 255, 0));
+ overflow: auto; }
+
+.video-js .vjs-modal-dialog > * {
+ box-sizing: border-box; }
+
+.vjs-modal-dialog .vjs-modal-dialog-content {
+ font-size: 1.2em;
+ line-height: 1.5;
+ padding: 20px 24px;
+ z-index: 1; }
+
+.vjs-menu-button {
+ cursor: pointer; }
+
+.vjs-menu-button.vjs-disabled {
+ cursor: default; }
+
+.vjs-workinghover .vjs-menu-button.vjs-disabled:hover .vjs-menu {
+ display: none; }
+
+.vjs-menu .vjs-menu-content {
+ display: block;
+ padding: 0;
+ margin: 0;
+ font-family: Arial, Helvetica, sans-serif;
+ overflow: auto; }
+
+.vjs-menu .vjs-menu-content > * {
+ box-sizing: border-box; }
+
+.vjs-scrubbing .vjs-control.vjs-menu-button:hover .vjs-menu {
+ display: none; }
+
+.vjs-menu li {
+ list-style: none;
+ margin: 0;
+ padding: 0.2em 0;
+ line-height: 1.4em;
+ font-size: 1.2em;
+ text-align: center;
+ text-transform: lowercase; }
+
+.vjs-menu li.vjs-menu-item:focus,
+.vjs-menu li.vjs-menu-item:hover {
+ background-color: #73859f;
+ background-color: rgba(115, 133, 159, 0.5); }
+
+.vjs-menu li.vjs-selected,
+.vjs-menu li.vjs-selected:focus,
+.vjs-menu li.vjs-selected:hover {
+ background-color: #fff;
+ color: #2B333F; }
+
+.vjs-menu li.vjs-menu-title {
+ text-align: center;
+ text-transform: uppercase;
+ font-size: 1em;
+ line-height: 2em;
+ padding: 0;
+ margin: 0 0 0.3em 0;
+ font-weight: bold;
+ cursor: default; }
+
+.vjs-menu-button-popup .vjs-menu {
+ display: none;
+ position: absolute;
+ bottom: 0;
+ width: 10em;
+ left: -3em;
+ height: 0em;
+ margin-bottom: 1.5em;
+ border-top-color: rgba(43, 51, 63, 0.7); }
+
+.vjs-menu-button-popup .vjs-menu .vjs-menu-content {
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7);
+ position: absolute;
+ width: 100%;
+ bottom: 1.5em;
+ max-height: 15em; }
+
+.vjs-workinghover .vjs-menu-button-popup:hover .vjs-menu,
+.vjs-menu-button-popup .vjs-menu.vjs-lock-showing {
+ display: block; }
+
+.video-js .vjs-menu-button-inline {
+ transition: all 0.4s;
+ overflow: hidden; }
+
+.video-js .vjs-menu-button-inline:before {
+ width: 2.222222222em; }
+
+.video-js .vjs-menu-button-inline:hover,
+.video-js .vjs-menu-button-inline:focus,
+.video-js .vjs-menu-button-inline.vjs-slider-active,
+.video-js.vjs-no-flex .vjs-menu-button-inline {
+ width: 12em; }
+
+.vjs-menu-button-inline .vjs-menu {
+ opacity: 0;
+ height: 100%;
+ width: auto;
+ position: absolute;
+ left: 4em;
+ top: 0;
+ padding: 0;
+ margin: 0;
+ transition: all 0.4s; }
+
+.vjs-menu-button-inline:hover .vjs-menu,
+.vjs-menu-button-inline:focus .vjs-menu,
+.vjs-menu-button-inline.vjs-slider-active .vjs-menu {
+ display: block;
+ opacity: 1; }
+
+.vjs-no-flex .vjs-menu-button-inline .vjs-menu {
+ display: block;
+ opacity: 1;
+ position: relative;
+ width: auto; }
+
+.vjs-no-flex .vjs-menu-button-inline:hover .vjs-menu,
+.vjs-no-flex .vjs-menu-button-inline:focus .vjs-menu,
+.vjs-no-flex .vjs-menu-button-inline.vjs-slider-active .vjs-menu {
+ width: auto; }
+
+.vjs-menu-button-inline .vjs-menu-content {
+ width: auto;
+ height: 100%;
+ margin: 0;
+ overflow: hidden; }
+
+.video-js .vjs-control-bar {
+ display: none;
+ width: 100%;
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ height: 3.0em;
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7); }
+
+.vjs-has-started .vjs-control-bar {
+ display: flex;
+ visibility: visible;
+ opacity: 1;
+ transition: visibility 0.1s, opacity 0.1s; }
+
+.vjs-has-started.vjs-user-inactive.vjs-playing .vjs-control-bar {
+ visibility: visible;
+ opacity: 0;
+ transition: visibility 1s, opacity 1s; }
+
+.vjs-controls-disabled .vjs-control-bar,
+.vjs-using-native-controls .vjs-control-bar,
+.vjs-error .vjs-control-bar {
+ display: none !important; }
+
+.vjs-audio.vjs-has-started.vjs-user-inactive.vjs-playing .vjs-control-bar {
+ opacity: 1;
+ visibility: visible; }
+
+.vjs-has-started.vjs-no-flex .vjs-control-bar {
+ display: table; }
+
+.video-js .vjs-control {
+ position: relative;
+ text-align: center;
+ margin: 0;
+ padding: 0;
+ height: 100%;
+ width: 4em;
+ flex: none; }
+
+.vjs-button > .vjs-icon-placeholder:before {
+ font-size: 1.8em;
+ line-height: 1.67; }
+
+.video-js .vjs-control:focus:before,
+.video-js .vjs-control:hover:before,
+.video-js .vjs-control:focus {
+ text-shadow: 0em 0em 1em white; }
+
+.video-js .vjs-control-text {
+ border: 0;
+ clip: rect(0 0 0 0);
+ height: 1px;
+ overflow: hidden;
+ padding: 0;
+ position: absolute;
+ width: 1px; }
+
+.vjs-no-flex .vjs-control {
+ display: table-cell;
+ vertical-align: middle; }
+
+.video-js .vjs-custom-control-spacer {
+ display: none; }
+
+.video-js .vjs-progress-control {
+ cursor: pointer;
+ flex: auto;
+ display: flex;
+ align-items: center;
+ min-width: 4em;
+ touch-action: none; }
+
+.video-js .vjs-progress-control.disabled {
+ cursor: default; }
+
+.vjs-live .vjs-progress-control {
+ display: none; }
+
+.vjs-no-flex .vjs-progress-control {
+ width: auto; }
+
+.video-js .vjs-progress-holder {
+ flex: auto;
+ transition: all 0.2s;
+ height: 0.3em; }
+
+.video-js .vjs-progress-control .vjs-progress-holder {
+ margin: 0 10px; }
+
+.video-js .vjs-progress-control:hover .vjs-progress-holder {
+ font-size: 1.666666666666666666em; }
+
+.video-js .vjs-progress-control:hover .vjs-progress-holder.disabled {
+ font-size: 1em; }
+
+.video-js .vjs-progress-holder .vjs-play-progress,
+.video-js .vjs-progress-holder .vjs-load-progress,
+.video-js .vjs-progress-holder .vjs-load-progress div {
+ position: absolute;
+ display: block;
+ height: 100%;
+ margin: 0;
+ padding: 0;
+ width: 0; }
+
+.video-js .vjs-play-progress {
+ background-color: #fff; }
+ .video-js .vjs-play-progress:before {
+ font-size: 0.9em;
+ position: absolute;
+ right: -0.5em;
+ top: -0.333333333333333em;
+ z-index: 1; }
+
+.video-js .vjs-load-progress {
+ background: rgba(115, 133, 159, 0.5); }
+
+.video-js .vjs-load-progress div {
+ background: rgba(115, 133, 159, 0.75); }
+
+.video-js .vjs-time-tooltip {
+ background-color: #fff;
+ background-color: rgba(255, 255, 255, 0.8);
+ border-radius: 0.3em;
+ color: #000;
+ float: right;
+ font-family: Arial, Helvetica, sans-serif;
+ font-size: 1em;
+ padding: 6px 8px 8px 8px;
+ pointer-events: none;
+ position: absolute;
+ top: -3.4em;
+ visibility: hidden;
+ z-index: 1; }
+
+.video-js .vjs-progress-holder:focus .vjs-time-tooltip {
+ display: none; }
+
+.video-js .vjs-progress-control:hover .vjs-time-tooltip,
+.video-js .vjs-progress-control:hover .vjs-progress-holder:focus .vjs-time-tooltip {
+ display: block;
+ font-size: 0.6em;
+ visibility: visible; }
+
+.video-js .vjs-progress-control.disabled:hover .vjs-time-tooltip {
+ font-size: 1em; }
+
+.video-js .vjs-progress-control .vjs-mouse-display {
+ display: none;
+ position: absolute;
+ width: 1px;
+ height: 100%;
+ background-color: #000;
+ z-index: 1; }
+
+.vjs-no-flex .vjs-progress-control .vjs-mouse-display {
+ z-index: 0; }
+
+.video-js .vjs-progress-control:hover .vjs-mouse-display {
+ display: block; }
+
+.video-js.vjs-user-inactive .vjs-progress-control .vjs-mouse-display {
+ visibility: hidden;
+ opacity: 0;
+ transition: visibility 1s, opacity 1s; }
+
+.video-js.vjs-user-inactive.vjs-no-flex .vjs-progress-control .vjs-mouse-display {
+ display: none; }
+
+.vjs-mouse-display .vjs-time-tooltip {
+ color: #fff;
+ background-color: #000;
+ background-color: rgba(0, 0, 0, 0.8); }
+
+.video-js .vjs-slider {
+ position: relative;
+ cursor: pointer;
+ padding: 0;
+ margin: 0 0.45em 0 0.45em;
+ /* iOS Safari */
+ -webkit-touch-callout: none;
+ /* Safari */
+ -webkit-user-select: none;
+ /* Konqueror HTML */
+ /* Firefox */
+ -moz-user-select: none;
+ /* Internet Explorer/Edge */
+ -ms-user-select: none;
+ /* Non-prefixed version, currently supported by Chrome and Opera */
+ user-select: none;
+ background-color: #73859f;
+ background-color: rgba(115, 133, 159, 0.5); }
+
+.video-js .vjs-slider.disabled {
+ cursor: default; }
+
+.video-js .vjs-slider:focus {
+ text-shadow: 0em 0em 1em white;
+ box-shadow: 0 0 1em #fff; }
+
+.video-js .vjs-mute-control {
+ cursor: pointer;
+ flex: none; }
+
+.video-js .vjs-volume-control {
+ cursor: pointer;
+ margin-right: 1em;
+ display: flex; }
+
+.video-js .vjs-volume-control.vjs-volume-horizontal {
+ width: 5em; }
+
+.video-js .vjs-volume-panel .vjs-volume-control {
+ visibility: visible;
+ opacity: 0;
+ width: 1px;
+ height: 1px;
+ margin-left: -1px; }
+
+.video-js .vjs-volume-panel {
+ transition: width 1s; }
+ .video-js .vjs-volume-panel:hover .vjs-volume-control,
+ .video-js .vjs-volume-panel:active .vjs-volume-control,
+ .video-js .vjs-volume-panel:focus .vjs-volume-control,
+ .video-js .vjs-volume-panel .vjs-volume-control:hover,
+ .video-js .vjs-volume-panel .vjs-volume-control:active,
+ .video-js .vjs-volume-panel .vjs-mute-control:hover ~ .vjs-volume-control,
+ .video-js .vjs-volume-panel .vjs-volume-control.vjs-slider-active {
+ visibility: visible;
+ opacity: 1;
+ position: relative;
+ transition: visibility 0.1s, opacity 0.1s, height 0.1s, width 0.1s, left 0s, top 0s; }
+ .video-js .vjs-volume-panel:hover .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel:active .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel:focus .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-volume-control:hover.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-volume-control:active.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-mute-control:hover ~ .vjs-volume-control.vjs-volume-horizontal,
+ .video-js .vjs-volume-panel .vjs-volume-control.vjs-slider-active.vjs-volume-horizontal {
+ width: 5em;
+ height: 3em; }
+ .video-js .vjs-volume-panel.vjs-volume-panel-horizontal:hover, .video-js .vjs-volume-panel.vjs-volume-panel-horizontal:active, .video-js .vjs-volume-panel.vjs-volume-panel-horizontal.vjs-slider-active {
+ width: 9em;
+ transition: width 0.1s; }
+ .video-js .vjs-volume-panel.vjs-volume-panel-horizontal.vjs-mute-toggle-only {
+ width: 4em; }
+
+.video-js .vjs-volume-panel .vjs-volume-control.vjs-volume-vertical {
+ height: 8em;
+ width: 3em;
+ left: -3.5em;
+ transition: visibility 1s, opacity 1s, height 1s 1s, width 1s 1s, left 1s 1s, top 1s 1s; }
+
+.video-js .vjs-volume-panel .vjs-volume-control.vjs-volume-horizontal {
+ transition: visibility 1s, opacity 1s, height 1s 1s, width 1s, left 1s 1s, top 1s 1s; }
+
+.video-js.vjs-no-flex .vjs-volume-panel .vjs-volume-control.vjs-volume-horizontal {
+ width: 5em;
+ height: 3em;
+ visibility: visible;
+ opacity: 1;
+ position: relative;
+ transition: none; }
+
+.video-js.vjs-no-flex .vjs-volume-control.vjs-volume-vertical,
+.video-js.vjs-no-flex .vjs-volume-panel .vjs-volume-control.vjs-volume-vertical {
+ position: absolute;
+ bottom: 3em;
+ left: 0.5em; }
+
+.video-js .vjs-volume-panel {
+ display: flex; }
+
+.video-js .vjs-volume-bar {
+ margin: 1.35em 0.45em; }
+
+.vjs-volume-bar.vjs-slider-horizontal {
+ width: 5em;
+ height: 0.3em; }
+
+.vjs-volume-bar.vjs-slider-vertical {
+ width: 0.3em;
+ height: 5em;
+ margin: 1.35em auto; }
+
+.video-js .vjs-volume-level {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ background-color: #fff; }
+ .video-js .vjs-volume-level:before {
+ position: absolute;
+ font-size: 0.9em; }
+
+.vjs-slider-vertical .vjs-volume-level {
+ width: 0.3em; }
+ .vjs-slider-vertical .vjs-volume-level:before {
+ top: -0.5em;
+ left: -0.3em; }
+
+.vjs-slider-horizontal .vjs-volume-level {
+ height: 0.3em; }
+ .vjs-slider-horizontal .vjs-volume-level:before {
+ top: -0.3em;
+ right: -0.5em; }
+
+.video-js .vjs-volume-panel.vjs-volume-panel-vertical {
+ width: 4em; }
+
+.vjs-volume-bar.vjs-slider-vertical .vjs-volume-level {
+ height: 100%; }
+
+.vjs-volume-bar.vjs-slider-horizontal .vjs-volume-level {
+ width: 100%; }
+
+.video-js .vjs-volume-vertical {
+ width: 3em;
+ height: 8em;
+ bottom: 8em;
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.7); }
+
+.video-js .vjs-volume-horizontal .vjs-menu {
+ left: -2em; }
+
+.vjs-poster {
+ display: inline-block;
+ vertical-align: middle;
+ background-repeat: no-repeat;
+ background-position: 50% 50%;
+ background-size: contain;
+ background-color: #000000;
+ cursor: pointer;
+ margin: 0;
+ padding: 0;
+ position: absolute;
+ top: 0;
+ right: 0;
+ bottom: 0;
+ left: 0;
+ height: 100%; }
+
+.vjs-has-started .vjs-poster {
+ display: none; }
+
+.vjs-audio.vjs-has-started .vjs-poster {
+ display: block; }
+
+.vjs-using-native-controls .vjs-poster {
+ display: none; }
+
+.video-js .vjs-live-control {
+ display: flex;
+ align-items: flex-start;
+ flex: auto;
+ font-size: 1em;
+ line-height: 3em; }
+
+.vjs-no-flex .vjs-live-control {
+ display: table-cell;
+ width: auto;
+ text-align: left; }
+
+.video-js .vjs-time-control {
+ flex: none;
+ font-size: 1em;
+ line-height: 3em;
+ min-width: 2em;
+ width: auto;
+ padding-left: 1em;
+ padding-right: 1em; }
+
+.vjs-live .vjs-time-control {
+ display: none; }
+
+.video-js .vjs-current-time,
+.vjs-no-flex .vjs-current-time {
+ display: none; }
+
+.video-js .vjs-duration,
+.vjs-no-flex .vjs-duration {
+ display: none; }
+
+.vjs-time-divider {
+ display: none;
+ line-height: 3em; }
+
+.vjs-live .vjs-time-divider {
+ display: none; }
+
+.video-js .vjs-play-control .vjs-icon-placeholder {
+ cursor: pointer;
+ flex: none; }
+
+.vjs-text-track-display {
+ position: absolute;
+ bottom: 3em;
+ left: 0;
+ right: 0;
+ top: 0;
+ pointer-events: none; }
+
+.video-js.vjs-user-inactive.vjs-playing .vjs-text-track-display {
+ bottom: 1em; }
+
+.video-js .vjs-text-track {
+ font-size: 1.4em;
+ text-align: center;
+ margin-bottom: 0.1em; }
+
+.vjs-subtitles {
+ color: #fff; }
+
+.vjs-captions {
+ color: #fc6; }
+
+.vjs-tt-cue {
+ display: block; }
+
+video::-webkit-media-text-track-display {
+ -webkit-transform: translateY(-3em);
+ transform: translateY(-3em); }
+
+.video-js.vjs-user-inactive.vjs-playing video::-webkit-media-text-track-display {
+ -webkit-transform: translateY(-1.5em);
+ transform: translateY(-1.5em); }
+
+.video-js .vjs-fullscreen-control {
+ cursor: pointer;
+ flex: none; }
+
+.vjs-playback-rate > .vjs-menu-button,
+.vjs-playback-rate .vjs-playback-rate-value {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%; }
+
+.vjs-playback-rate .vjs-playback-rate-value {
+ pointer-events: none;
+ font-size: 1.5em;
+ line-height: 2;
+ text-align: center; }
+
+.vjs-playback-rate .vjs-menu {
+ width: 4em;
+ left: 0em; }
+
+.vjs-error .vjs-error-display .vjs-modal-dialog-content {
+ font-size: 1.4em;
+ text-align: center; }
+
+.vjs-error .vjs-error-display:before {
+ color: #fff;
+ content: 'X';
+ font-family: Arial, Helvetica, sans-serif;
+ font-size: 4em;
+ left: 0;
+ line-height: 1;
+ margin-top: -0.5em;
+ position: absolute;
+ text-shadow: 0.05em 0.05em 0.1em #000;
+ text-align: center;
+ top: 50%;
+ vertical-align: middle;
+ width: 100%; }
+
+.vjs-loading-spinner {
+ display: none;
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ margin: -25px 0 0 -25px;
+ opacity: 0.85;
+ text-align: left;
+ border: 6px solid rgba(43, 51, 63, 0.7);
+ box-sizing: border-box;
+ background-clip: padding-box;
+ width: 50px;
+ height: 50px;
+ border-radius: 25px;
+ visibility: hidden; }
+
+.vjs-seeking .vjs-loading-spinner,
+.vjs-waiting .vjs-loading-spinner {
+ display: block;
+ -webkit-animation: 0s linear 0.3s forwards vjs-spinner-show;
+ animation: 0s linear 0.3s forwards vjs-spinner-show; }
+
+.vjs-loading-spinner:before,
+.vjs-loading-spinner:after {
+ content: "";
+ position: absolute;
+ margin: -6px;
+ box-sizing: inherit;
+ width: inherit;
+ height: inherit;
+ border-radius: inherit;
+ opacity: 1;
+ border: inherit;
+ border-color: transparent;
+ border-top-color: white; }
+
+.vjs-seeking .vjs-loading-spinner:before,
+.vjs-seeking .vjs-loading-spinner:after,
+.vjs-waiting .vjs-loading-spinner:before,
+.vjs-waiting .vjs-loading-spinner:after {
+ -webkit-animation: vjs-spinner-spin 1.1s cubic-bezier(0.6, 0.2, 0, 0.8) infinite, vjs-spinner-fade 1.1s linear infinite;
+ animation: vjs-spinner-spin 1.1s cubic-bezier(0.6, 0.2, 0, 0.8) infinite, vjs-spinner-fade 1.1s linear infinite; }
+
+.vjs-seeking .vjs-loading-spinner:before,
+.vjs-waiting .vjs-loading-spinner:before {
+ border-top-color: white; }
+
+.vjs-seeking .vjs-loading-spinner:after,
+.vjs-waiting .vjs-loading-spinner:after {
+ border-top-color: white;
+ -webkit-animation-delay: 0.44s;
+ animation-delay: 0.44s; }
+
+@keyframes vjs-spinner-show {
+ to {
+ visibility: visible; } }
+
+@-webkit-keyframes vjs-spinner-show {
+ to {
+ visibility: visible; } }
+
+@keyframes vjs-spinner-spin {
+ 100% {
+ -webkit-transform: rotate(360deg);
+ transform: rotate(360deg); } }
+
+@-webkit-keyframes vjs-spinner-spin {
+ 100% {
+ -webkit-transform: rotate(360deg); } }
+
+@keyframes vjs-spinner-fade {
+ 0% {
+ border-top-color: #73859f; }
+ 20% {
+ border-top-color: #73859f; }
+ 35% {
+ border-top-color: white; }
+ 60% {
+ border-top-color: #73859f; }
+ 100% {
+ border-top-color: #73859f; } }
+
+@-webkit-keyframes vjs-spinner-fade {
+ 0% {
+ border-top-color: #73859f; }
+ 20% {
+ border-top-color: #73859f; }
+ 35% {
+ border-top-color: white; }
+ 60% {
+ border-top-color: #73859f; }
+ 100% {
+ border-top-color: #73859f; } }
+
+.vjs-chapters-button .vjs-menu ul {
+ width: 24em; }
+
+.video-js .vjs-subs-caps-button + .vjs-menu .vjs-captions-menu-item .vjs-menu-item-text .vjs-icon-placeholder {
+ vertical-align: middle;
+ display: inline-block;
+ margin-bottom: -0.1em; }
+
+.video-js .vjs-subs-caps-button + .vjs-menu .vjs-captions-menu-item .vjs-menu-item-text .vjs-icon-placeholder:before {
+ font-family: VideoJS;
+ content: "\f10d";
+ font-size: 1.5em;
+ line-height: inherit; }
+
+.video-js .vjs-audio-button + .vjs-menu .vjs-main-desc-menu-item .vjs-menu-item-text .vjs-icon-placeholder {
+ vertical-align: middle;
+ display: inline-block;
+ margin-bottom: -0.1em; }
+
+.video-js .vjs-audio-button + .vjs-menu .vjs-main-desc-menu-item .vjs-menu-item-text .vjs-icon-placeholder:before {
+ font-family: VideoJS;
+ content: " \f11d";
+ font-size: 1.5em;
+ line-height: inherit; }
+
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-custom-control-spacer {
+ flex: auto; }
+
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen).vjs-no-flex .vjs-custom-control-spacer {
+ width: auto; }
+
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-current-time, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-time-divider, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-duration, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-remaining-time,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-playback-rate, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-progress-control,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-mute-control, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-volume-control,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-chapters-button, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-descriptions-button, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-captions-button,
+.video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-subtitles-button, .video-js.vjs-layout-tiny:not(.vjs-fullscreen) .vjs-audio-button {
+ display: none; }
+
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-current-time, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-time-divider, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-duration, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-remaining-time,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-playback-rate,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-mute-control, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-volume-control,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-chapters-button, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-descriptions-button, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-captions-button,
+.video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-subtitles-button, .video-js.vjs-layout-x-small:not(.vjs-fullscreen) .vjs-audio-button {
+ display: none; }
+
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-current-time, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-time-divider, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-duration, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-remaining-time,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-playback-rate,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-mute-control, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-volume-control,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-chapters-button, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-descriptions-button, .video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-captions-button,
+.video-js.vjs-layout-small:not(.vjs-fullscreen) .vjs-subtitles-button .vjs-audio-button {
+ display: none; }
+
+.vjs-modal-dialog.vjs-text-track-settings {
+ background-color: #2B333F;
+ background-color: rgba(43, 51, 63, 0.75);
+ color: #fff;
+ height: 70%; }
+
+.vjs-text-track-settings .vjs-modal-dialog-content {
+ display: table; }
+
+.vjs-text-track-settings .vjs-track-settings-colors,
+.vjs-text-track-settings .vjs-track-settings-font,
+.vjs-text-track-settings .vjs-track-settings-controls {
+ display: table-cell; }
+
+.vjs-text-track-settings .vjs-track-settings-controls {
+ text-align: right;
+ vertical-align: bottom; }
+
+@supports (display: grid) {
+ .vjs-text-track-settings .vjs-modal-dialog-content {
+ display: grid;
+ grid-template-columns: 1fr 1fr;
+ grid-template-rows: 1fr auto; }
+ .vjs-text-track-settings .vjs-track-settings-colors {
+ display: block;
+ grid-column: 1;
+ grid-row: 1; }
+ .vjs-text-track-settings .vjs-track-settings-font {
+ grid-column: 2;
+ grid-row: 1; }
+ .vjs-text-track-settings .vjs-track-settings-controls {
+ grid-column: 2;
+ grid-row: 2; } }
+
+.vjs-track-setting > select {
+ margin-right: 5px; }
+
+.vjs-text-track-settings fieldset {
+ margin: 5px;
+ padding: 3px;
+ border: none; }
+
+.vjs-text-track-settings fieldset span {
+ display: inline-block; }
+
+.vjs-text-track-settings legend {
+ color: #fff;
+ margin: 0 0 5px 0; }
+
+.vjs-text-track-settings .vjs-label {
+ position: absolute;
+ clip: rect(1px 1px 1px 1px);
+ clip: rect(1px, 1px, 1px, 1px);
+ display: block;
+ margin: 0 0 5px 0;
+ padding: 0;
+ border: 0;
+ height: 1px;
+ width: 1px;
+ overflow: hidden; }
+
+.vjs-track-settings-controls button:focus,
+.vjs-track-settings-controls button:active {
+ outline-style: solid;
+ outline-width: medium;
+ background-image: linear-gradient(0deg, #fff 88%, #73859f 100%); }
+
+.vjs-track-settings-controls button:hover {
+ color: rgba(43, 51, 63, 0.75); }
+
+.vjs-track-settings-controls button {
+ background-color: #fff;
+ background-image: linear-gradient(-180deg, #fff 88%, #73859f 100%);
+ color: #2B333F;
+ cursor: pointer;
+ border-radius: 2px; }
+
+.vjs-track-settings-controls .vjs-default-button {
+ margin-right: 1em; }
+
+@media print {
+ .video-js > *:not(.vjs-tech):not(.vjs-poster) {
+ visibility: hidden; } }
+
+.vjs-resize-manager {
+ position: absolute;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%;
+ border: none;
+ visibility: hidden; }
diff --git a/assets/netcut/lib/videojs/video-js.min.css b/assets/netcut/lib/videojs/video-js.min.css
new file mode 100644
index 0000000..3ff1c7f
--- /dev/null
+++ b/assets/netcut/lib/videojs/video-js.min.css
@@ -0,0 +1 @@
+.video-js .vjs-big-play-button .vjs-icon-placeholder:before,.video-js .vjs-modal-dialog,.vjs-button>.vjs-icon-placeholder:before,.vjs-modal-dialog .vjs-modal-dialog-content{position:absolute;top:0;left:0;width:100%;height:100%}.video-js .vjs-big-play-button 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100%);color:#2b333f;cursor:pointer;border-radius:2px}.vjs-track-settings-controls .vjs-default-button{margin-right:1em}@media print{.video-js>:not(.vjs-tech):not(.vjs-poster){visibility:hidden}}.vjs-resize-manager{position:absolute;top:0;left:0;width:100%;height:100%;border:none;visibility:hidden} \ No newline at end of file
diff --git a/assets/netcut/lib/videojs/video.cjs.js b/assets/netcut/lib/videojs/video.cjs.js
new file mode 100644
index 0000000..bd42437
--- /dev/null
+++ b/assets/netcut/lib/videojs/video.cjs.js
@@ -0,0 +1,43023 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
+
+var window$1 = _interopDefault(require('global/window'));
+var document = _interopDefault(require('global/document'));
+var tsml = _interopDefault(require('tsml'));
+var xhr = _interopDefault(require('xhr'));
+var vtt = _interopDefault(require('videojs-vtt.js'));
+var safeParseTuple = _interopDefault(require('safe-json-parse/tuple'));
+var URLToolkit = _interopDefault(require('url-toolkit'));
+var m3u8Parser = require('m3u8-parser');
+var mpdParser = require('mpd-parser');
+var mp4probe = _interopDefault(require('mux.js/lib/mp4/probe'));
+var mp4 = require('mux.js/lib/mp4');
+var tsInspector = _interopDefault(require('mux.js/lib/tools/ts-inspector.js'));
+var aesDecrypter = require('aes-decrypter');
+
+var version = "7.2.4";
+
+/**
+ * @file log.js
+ * @module log
+ */
+
+var log = void 0;
+
+// This is the private tracking variable for logging level.
+var level = 'info';
+
+// This is the private tracking variable for the logging history.
+var history = [];
+
+/**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+var logByType = function logByType(type, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp('^(' + lvl + ')$');
+
+ if (type !== 'log') {
+
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ }
+
+ // Add a clone of the args at this point to history.
+ if (history) {
+ history.push([].concat(args));
+ }
+
+ // Add console prefix after adding to history.
+ args.unshift('VIDEOJS:');
+
+ // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+ if (!window$1.console) {
+ return;
+ }
+
+ // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+ var fn = window$1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window$1.console.info || window$1.console.log;
+ }
+
+ // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window$1.console, args);
+};
+
+/**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * @class
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+log = function log() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', args);
+};
+
+/**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+};
+
+/**
+ * Get or set the current logging level. If a string matching a key from
+ * {@link log.levels} is provided, acts as a setter. Regardless of argument,
+ * returns the current logging level.
+ *
+ * @param {string} [lvl]
+ * Pass to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error('"' + lvl + '" in not a valid log level');
+ }
+ level = lvl;
+ }
+ return level;
+};
+
+/**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+log.history = function () {
+ return history ? [].concat(history) : [];
+};
+
+/**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+};
+
+/**
+ * Disable history tracking if it is currently enabled.
+ */
+log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+};
+
+/**
+ * Enable history tracking if it is currently disabled.
+ */
+log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+};
+
+/**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+log.error = function () {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', args);
+};
+
+/**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+log.warn = function () {
+ for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', args);
+};
+
+/**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+log.debug = function () {
+ for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', args);
+};
+
+var log$1 = log;
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+} : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+};
+
+var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+};
+
+var inherits = function (subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+var possibleConstructorReturn = function (self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+};
+
+var taggedTemplateLiteralLoose = function (strings, raw) {
+ strings.raw = raw;
+ return strings;
+};
+
+/**
+ * @file obj.js
+ * @module obj
+ */
+
+/**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+/**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+var toString = Object.prototype.toString;
+
+/**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+};
+
+/**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+}
+
+/**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+function reduce(object, fn) {
+ var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+}
+
+/**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+function assign(target) {
+ for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+
+ return target;
+}
+
+/**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+function isObject(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';
+}
+
+/**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+}
+
+/**
+ * @file computed-style.js
+ * @module computed-style
+ */
+
+/**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to
+ * make sure that the player doesn't break in these cases.
+ *
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ *
+ * @static
+ * @const
+ */
+function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window$1.getComputedStyle === 'function') {
+ var cs = window$1.getComputedStyle(el);
+
+ return cs ? cs[prop] : '';
+ }
+
+ return '';
+}
+
+var _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);
+
+/**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * - True if the string is non-blank
+ * - False otherwise
+ *
+ */
+function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+}
+
+/**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ *
+ */
+function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+}
+
+/**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+}
+
+/**
+ * Whether the current DOM interface appears to be real.
+ *
+ * @return {Boolean}
+ */
+function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document === window$1.document;
+}
+
+/**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The thing to check
+ *
+ * @return {boolean}
+ * - True if it is a DOM element
+ * - False otherwise
+ */
+function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+}
+
+/**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ *
+ */
+function isInFrame() {
+
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window$1.parent !== window$1.self;
+ } catch (x) {
+ return true;
+ }
+}
+
+/**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document[method](null);
+ }
+ if (isNonBlankString(context)) {
+ context = document.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document;
+
+ return ctx[method] && ctx[method](selector);
+ };
+}
+
+/**
+ * Creates an element and applies properties.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {String|Element|TextNode|Array|Function} [content]
+ * Contents for the element (see: {@link dom:normalizeContent})
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+function createEl() {
+ var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var content = arguments[3];
+
+ var el = document.createElement(tagName);
+
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName];
+
+ // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log$1.warn(tsml(_templateObject, propName, val));
+ el.setAttribute(propName, val);
+
+ // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+}
+
+/**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+ return el;
+}
+
+/**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+}
+
+/**
+ * Check if an element has a CSS class
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * - True if the element had the class
+ * - False otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+ return classRegExp(classToCheck).test(element.className);
+}
+
+/**
+ * Add a CSS class name to an element
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The dom element with the added class name.
+ */
+function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd);
+
+ // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+}
+
+/**
+ * Remove a CSS class name from an element
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The dom element with class name removed.
+ */
+function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+}
+
+/**
+ * The callback definition for toggleElClass.
+ *
+ * @callback Dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * - If true the `classToToggle` will get added to `element`.
+ * - If false the `classToToggle` will get removed from `element`.
+ * - If undefined this callback will be ignored
+ */
+
+/**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled
+ *
+ * @param {boolean|PredicateCallback} [predicate]
+ * See the return value for {@link Dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+function toggleClass(element, classToToggle, predicate) {
+
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ }
+
+ // If the necessary class operation matches the current state of the
+ // element, no action is required.
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+}
+
+/**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+}
+
+/**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element.
+ */
+function getAttributes(tag) {
+ var obj = {};
+
+ // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value;
+
+ // check for known booleans
+ // the matching element property will return a value for typeof
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+}
+
+/**
+ * Get the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to get the value of
+ *
+ * @return {string}
+ * value of the attribute
+ */
+function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+}
+
+/**
+ * Set the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to set
+ *
+ * @param {string} value
+ * Value to set the attribute to
+ */
+function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+}
+
+/**
+ * Remove an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to remove
+ */
+function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+}
+
+/**
+ * Attempt to block the ability to select text while dragging controls
+ */
+function blockTextSelection() {
+ document.body.focus();
+ document.onselectstart = function () {
+ return false;
+ };
+}
+
+/**
+ * Turn off text selection blocking
+ */
+function unblockTextSelection() {
+ document.onselectstart = function () {
+ return true;
+ };
+}
+
+/**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain
+ */
+function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+}
+
+/**
+ * The postion of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left
+ *
+ * @property {number} top
+ * Pixels on top
+ */
+
+/**
+ * Offset Left.
+ * getBoundingClientRect technique from
+ * John Resig
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+function findPosition(el) {
+ var box = void 0;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document.documentElement;
+ var body = document.body;
+
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window$1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window$1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop;
+
+ // Android sometimes returns slightly off decimal values, so need to round
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+}
+
+/**
+ * x and y coordinates for a dom element or mouse pointer
+ *
+ * @typedef {Object} Dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+/**
+ * Get pointer position in element
+ * Returns an object with x and y coordinates.
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {Dom~Coordinates}
+ * A Coordinates object corresponding to the mouse position.
+ *
+ */
+function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+
+ return position;
+}
+
+/**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * - True if it is a text node
+ * - False otherwise
+ */
+function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+}
+
+/**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+ return el;
+}
+
+/**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but protects
+ * from falling into the trap of simply writing to `innerHTML`, which is
+ * an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * - String: Normalized into a text node.
+ * - Element/TextNode: Passed through.
+ * - Array: A one-dimensional array of strings, elements, nodes, or functions
+ * (which return single strings, elements, or nodes).
+ * - Function: If the sole argument, is expected to produce a string, element,
+ * node, or array as defined above.
+ *
+ * @return {Array}
+ * All of the content that was passed in normalized.
+ */
+function normalizeContent(content) {
+
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ }
+
+ // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+}
+
+/**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+}
+
+/**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ *
+ */
+function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+}
+
+/**
+ * Check if event was a single left click
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {boolean}
+ * - True if a left click
+ * - False if not a left click
+ */
+function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+var $ = createQuerier('querySelector');
+
+/**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none were found.
+ *
+ */
+var $$ = createQuerier('querySelectorAll');
+
+var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+});
+
+/**
+ * @file guid.js
+ * @module guid
+ */
+
+/**
+ * Unique ID for an element or function
+ * @type {Number}
+ */
+var _guid = 1;
+
+/**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+function newGUID() {
+ return _guid++;
+}
+
+/**
+ * @file dom-data.js
+ * @module dom-data
+ */
+
+/**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+var elData = {};
+
+/*
+ * Unique attribute name to store an element's guid in
+ *
+ * @type {String}
+ * @constant
+ * @private
+ */
+var elIdAttr = 'vdata' + new Date().getTime();
+
+/**
+ * Returns the cache object where data for an element is stored
+ *
+ * @param {Element} el
+ * Element to store data for.
+ *
+ * @return {Object}
+ * The cache object for that el that was passed in.
+ */
+function getData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ id = el[elIdAttr] = newGUID();
+ }
+
+ if (!elData[id]) {
+ elData[id] = {};
+ }
+
+ return elData[id];
+}
+
+/**
+ * Returns whether or not an element has cached data
+ *
+ * @param {Element} el
+ * Check if this element has cached data.
+ *
+ * @return {boolean}
+ * - True if the DOM element has cached data.
+ * - False otherwise.
+ */
+function hasData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return false;
+ }
+
+ return !!Object.getOwnPropertyNames(elData[id]).length;
+}
+
+/**
+ * Delete data for the element from the cache and the guid attr from getElementById
+ *
+ * @param {Element} el
+ * Remove cached data for this element.
+ */
+function removeData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return;
+ }
+
+ // Remove all stored data
+ delete elData[id];
+
+ // Remove the elIdAttr property from the DOM node
+ try {
+ delete el[elIdAttr];
+ } catch (e) {
+ if (el.removeAttribute) {
+ el.removeAttribute(elIdAttr);
+ } else {
+ // IE doesn't appear to support removeAttribute on the document element
+ el[elIdAttr] = null;
+ }
+ }
+}
+
+/**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @module events
+ */
+
+/**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+function _cleanUpEvents(elem, type) {
+ var data = getData(elem);
+
+ // Remove the events of a particular type if there are none left
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type];
+ // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+
+ // Remove the meta-handler from the element
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ }
+
+ // Remove the events object if there are no types left
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ }
+
+ // Finally remove the element data if there is no data left
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ removeData(elem);
+ }
+}
+
+/**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+}
+
+/**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+function fixEvent(event) {
+
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ }
+
+ // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window$1.event;
+
+ event = {};
+ // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ }
+
+ // The event occurred on this element
+ if (!event.target) {
+ event.target = event.srcElement || document;
+ }
+
+ // Handle which other element the event is related to
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ }
+
+ // Stop the default browser action
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false;
+
+ // Stop the event from bubbling
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse;
+
+ // Stop the event from bubbling and executing other handlers
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse;
+
+ // Handle mouse position
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document.documentElement;
+ var body = document.body;
+
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ }
+
+ // Handle key presses
+ event.which = event.charCode || event.keyCode;
+
+ // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+ if (event.button !== null && event.button !== undefined) {
+
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ }
+
+ // Returns fixed-up instance
+ return event;
+}
+
+/**
+ * Whether passive event listeners are supported
+ */
+var _supportsPassive = false;
+
+(function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+
+ window$1.addEventListener('test', null, opts);
+ window$1.removeEventListener('test', null, opts);
+ } catch (e) {
+ // disregard
+ }
+})();
+
+/**
+ * Touch events Chrome expects to be passive
+ */
+var passiveEvents = ['touchstart', 'touchmove'];
+
+/**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ var data = getData(elem);
+
+ // We need a place to store all our handler data
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log$1.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = { passive: true };
+ }
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+}
+
+/**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!hasData(elem)) {
+ return;
+ }
+
+ var data = getData(elem);
+
+ // If no events exist, nothing to unbind
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ }
+
+ // Utility function
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+ _cleanUpEvents(el, t);
+ };
+
+ // Are we removing all bound events?
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+ return;
+ }
+
+ var handlers = data.handlers[type];
+
+ // If no handlers exist, nothing to unbind
+ if (!handlers) {
+ return;
+ }
+
+ // If no listener was provided, remove all listeners for type
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ }
+
+ // We're only removing a single handler
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+}
+
+/**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * - Returns the opposite of `defaultPrevented` if default was prevented
+ * - Otherwise returns undefined
+ */
+function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = hasData(elem) ? getData(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument;
+ // type = event.type || event,
+ // handler;
+
+ // If an event name was passed as a string, creates an event out of it
+ if (typeof event === 'string') {
+ event = { type: event, target: elem };
+ } else if (!event.target) {
+ event.target = elem;
+ }
+
+ // Normalizes the event properties.
+ event = fixEvent(event);
+
+ // If the passed element has a dispatcher, executes the established handlers.
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ }
+
+ // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash);
+
+ // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented) {
+ var targetData = getData(event.target);
+
+ // Checks if the target has a default action for this event.
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true;
+ // Executes the default action.
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ }
+ // Re-enables event dispatching.
+ targetData.disabled = false;
+ }
+ }
+
+ // Inform the triggerer if the default was prevented by returning false
+ return !event.defaultPrevented;
+}
+
+/**
+ * Trigger a listener only once for an event
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event Listener function
+ */
+function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ };
+
+ // copy the guid to the new function so it can removed using the original function's ID
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+}
+
+var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one
+});
+
+/**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+
+var _windowLoaded = false;
+var videojs = void 0;
+
+/**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+var autoSetup = function autoSetup() {
+
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs);
+
+ // Check if any media elements exist
+ if (mediaEls && mediaEls.length > 0) {
+
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i];
+
+ // Check if element exists, has getAttribute func.
+ if (mediaEl && mediaEl.getAttribute) {
+
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup');
+
+ // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ }
+
+ // If getAttribute isn't defined, we need to wait for the DOM.
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ }
+
+ // No videos were found, so keep looping unless page is finished loading.
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+};
+
+/**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window$1.setTimeout(autoSetup, wait);
+}
+
+if (isReal() && document.readyState === 'complete') {
+ _windowLoaded = true;
+} else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * @listens load
+ */
+ one(window$1, 'load', function () {
+ _windowLoaded = true;
+ });
+}
+
+/**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+
+/**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+var createStyleElement = function createStyleElement(className) {
+ var style = document.createElement('style');
+
+ style.className = className;
+
+ return style;
+};
+
+/**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+};
+
+/**
+ * @file fn.js
+ * @module fn
+ */
+
+/**
+ * Bind (a.k.a proxy or Context). A simple method for changing the context of a function
+ * It also stores a unique id on the function so it can be easily removed from events.
+ *
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ // Create the new function that changes the context
+ var bound = function bound() {
+ return fn.apply(context, arguments);
+ };
+
+ // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+
+ return bound;
+};
+
+/**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {Number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+var throttle = function throttle(fn, wait) {
+ var last = Date.now();
+
+ var throttled = function throttled() {
+ var now = Date.now();
+
+ if (now - last >= wait) {
+ fn.apply(undefined, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+};
+
+/**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+var debounce = function debounce(func, wait, immediate) {
+ var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window$1;
+
+ var timeout = void 0;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+
+ /* eslint-disable consistent-this */
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+ debounced.cancel = cancel;
+
+ return debounced;
+};
+
+/**
+ * @file src/js/event-target.js
+ */
+
+/**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+var EventTarget = function EventTarget() {};
+
+/**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+/**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+/**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+EventTarget.prototype.allowedEvents_ = {};
+
+/**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ on(this, type, fn);
+ this.addEventListener = ael;
+};
+
+/**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+
+/**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+};
+
+/**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+
+/**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener alialing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ one(this, type, fn);
+ this.addEventListener = ael;
+};
+
+/**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event;
+
+ if (typeof event === 'string') {
+ event = { type: type };
+ }
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+};
+
+/**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+
+var EVENT_MAP = void 0;
+
+EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+
+ map.delete(type);
+ window$1.clearTimeout(oldTimeout);
+
+ var timeout = window$1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP.delete(_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+
+ map.set(type, timeout);
+};
+
+/**
+ * @file mixins/evented.js
+ * @module evented
+ */
+
+/**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+};
+
+/**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+var isValidEventType = function isValidEventType(type) {
+ return (
+ // The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+};
+
+/**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+};
+
+/**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+};
+
+/**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+};
+
+/**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+var normalizeListenArgs = function normalizeListenArgs(self, args) {
+
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target = void 0;
+ var type = void 0;
+ var listener = void 0;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_;
+
+ // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ listener = bind(self, listener);
+
+ return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };
+};
+
+/**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+};
+
+/**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+var EventedMixin = {
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on$$1() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener);
+
+ // If this object is listening to another evented object.
+ if (!isTargetingSelf) {
+
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ };
+
+ // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+ removeListenerOnDispose.guid = listener.guid;
+
+ // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ removeRemoverOnTargetDispose.guid = listener.guid;
+
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one$$1() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener;
+
+ // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener);
+
+ // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ _this2.off(target, type, wrapper);
+ listener.apply(null, largs);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$$1(targetOrType, typeOrListener, listener) {
+
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener);
+
+ // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener;
+
+ // Fail fast and in a meaningful way!
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ // Ensure there's at least a guid, even if the function hasn't been used
+ listener = bind(this, listener);
+
+ // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @returns {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+};
+
+/**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {String} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+function evented(target) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var eventBusKey = options.eventBusKey;
+
+ // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error('The eventBusKey "' + eventBusKey + '" does not refer to an element.');
+ }
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });
+ }
+
+ assign(target, EventedMixin);
+
+ // When any evented object is disposed, it removes all its listeners.
+ target.on('dispose', function () {
+ target.off();
+ window$1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+
+ return target;
+}
+
+/**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+
+/**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+var StatefulMixin = {
+
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @returns {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes = void 0;
+
+ each(stateUpdates, function (value, key) {
+
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ });
+
+ // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+ if (changes && isEvented(this)) {
+
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+};
+
+/**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @returns {Object}
+ * Returns the `target`.
+ */
+function stateful(target, defaultState) {
+ assign(target, StatefulMixin);
+
+ // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+ target.state = assign({}, target.state, defaultState);
+
+ // Auto-bind the `handleStateChanged` method of the target object if it exists.
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+}
+
+/**
+ * @file to-title-case.js
+ * @module to-title-case
+ */
+
+/**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.charAt(0).toUpperCase() + string.slice(1);
+}
+
+/**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+}
+
+/**
+ * @file merge-options.js
+ * @module merge-options
+ */
+
+/**
+ * Deep-merge one or more options objects, recursively merging **only** plain
+ * object properties.
+ *
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @returns {Object}
+ * A new object that is the merged result of all sources.
+ */
+function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+
+ return result;
+}
+
+/**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+
+/**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+var Component = function () {
+
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ classCallCheck(this, Component);
+
+
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ }
+
+ // Make a copy of prototype.options_ to protect against overriding defaults
+ this.options_ = mergeOptions({}, this.options_);
+
+ // Updated options with supplied options
+ options = this.options_ = mergeOptions(this.options_, options);
+
+ // Get ID from options or options element if one is supplied
+ this.id_ = options.id || options.el && options.el.id;
+
+ // If there was no ID from the options, generate one
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+
+ this.id_ = id + '_component_' + newGUID();
+ }
+
+ this.name_ = options.name || null;
+
+ // Create element if one wasn't provided in options
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ }
+
+ // if evented is anything except false, we want to mixin in evented
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, { eventBusKey: this.el_ ? 'el_' : null });
+ }
+ stateful(this, this.constructor.defaultState);
+
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+
+ // Add any child components in options
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready);
+ // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Component.prototype.dispose = function dispose() {
+
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({ type: 'dispose', bubbles: false });
+
+ // Dispose all children.
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ }
+
+ // Delete child references
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ removeData(this.el_);
+ this.el_ = null;
+ }
+
+ // remove reference to the player after disposing of the element
+ this.player_ = null;
+ };
+
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+
+
+ Component.prototype.player = function player() {
+ return this.player_;
+ };
+
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Component.prototype.options = function options(obj) {
+ log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');
+
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ };
+
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+
+
+ Component.prototype.el = function el() {
+ return this.el_;
+ };
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ };
+
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+
+
+ Component.prototype.localize = function localize(string, tokens) {
+ var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ };
+
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+
+
+ Component.prototype.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ };
+
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+
+
+ Component.prototype.id = function id() {
+ return this.id_;
+ };
+
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+
+
+ Component.prototype.name = function name() {
+ return this.name_;
+ };
+
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+
+
+ Component.prototype.children = function children() {
+ return this.children_;
+ };
+
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+
+
+ Component.prototype.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ };
+
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+
+
+ Component.prototype.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ return this.childNameIndex_[name];
+ };
+
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+
+
+ Component.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;
+
+ var component = void 0;
+ var componentName = void 0;
+
+ // If child is a string, create component with options
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+
+ var componentClassName = options.componentClass || componentName;
+
+ // Set name through options
+ options.name = componentName;
+
+ // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error('Component ' + componentClassName + ' does not exist');
+ }
+
+ // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options);
+
+ // child is a component instance
+ } else {
+ component = child;
+ }
+
+ this.children_.splice(index, 0, component);
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ }
+
+ // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ }
+
+ // Add the UI object's element to the container div (box)
+ // Having an element is not required
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+
+ this.contentEl().insertBefore(component.el(), refNode);
+ }
+
+ // Return so it can stored on parent object if desired.
+ return component;
+ };
+
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+
+
+ Component.prototype.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[component.name()] = null;
+
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ };
+
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+
+
+ Component.prototype.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts;
+
+ // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ }
+
+ // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+ if (opts === false) {
+ return;
+ }
+
+ // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+ if (opts === true) {
+ opts = {};
+ }
+
+ // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+ opts.playerOptions = _this.options_.playerOptions;
+
+ // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ };
+
+ // Allow for an array of children details to passed in the options
+ var workingChildren = void 0;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren
+ // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name = void 0;
+ var opts = void 0;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return { name: name, opts: opts };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ };
+
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+
+
+ Component.prototype.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ };
+
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+
+
+ Component.prototype.ready = function ready(fn) {
+ var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ };
+
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+
+
+ Component.prototype.triggerReady = function triggerReady() {
+ this.isReady_ = true;
+
+ // Ensure ready is triggered asynchronously
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_;
+
+ // Reset Ready Queue
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ }
+
+ // Allow for using event listeners also
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ready');
+ }, 1);
+ };
+
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$ = function $$$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ };
+
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$$ = function $$$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ };
+
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+
+
+ Component.prototype.hasClass = function hasClass$$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ };
+
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+
+
+ Component.prototype.addClass = function addClass$$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ };
+
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+
+
+ Component.prototype.removeClass = function removeClass$$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ };
+
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+
+
+ Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ };
+
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+
+
+ Component.prototype.show = function show() {
+ this.removeClass('vjs-hidden');
+ };
+
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+
+
+ Component.prototype.hide = function hide() {
+ this.addClass('vjs-hidden');
+ };
+
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ };
+
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ };
+
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+
+
+ Component.prototype.getAttribute = function getAttribute$$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+
+
+ Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ };
+
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+
+
+ Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ };
+
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ };
+
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+
+
+ Component.prototype.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ };
+
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+
+
+ Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ }
+
+ // Check if using css width/height (% or px) and adjust
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ }
+
+ // skipListeners allows us to avoid triggering the resize event when setting both width and height
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ }
+
+ // Not setting a value, so getting it
+ // Make sure element exists
+ if (!this.el_) {
+ return 0;
+ }
+
+ // Get dimension value from style
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ }
+
+ // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ };
+
+ /**
+ * Get the width or the height of the `Component` elements computed style. Uses
+ * `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+
+
+ Component.prototype.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ if (typeof window$1.getComputedStyle === 'function') {
+ var computedStyle = window$1.getComputedStyle(this.el_);
+
+ computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];
+ }
+
+ // remove 'px' from variable and parse as integer
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+ // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+ if (computedWidthOrHeight === 0) {
+ var rule = 'offset' + toTitleCase(widthOrHeight);
+
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ };
+
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains width and height values of the `Component`s
+ * computed style.
+ *
+ * @return {Component~DimensionObject}
+ * The dimensions of the components element
+ */
+
+
+ Component.prototype.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ };
+
+ /**
+ * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} width
+ * The width of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ };
+
+ /**
+ * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} height
+ * The height of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ };
+
+ /**
+ * Set the focus to this component
+ */
+
+
+ Component.prototype.focus = function focus() {
+ this.el_.focus();
+ };
+
+ /**
+ * Remove the focus from this component
+ */
+
+
+ Component.prototype.blur = function blur() {
+ this.el_.blur();
+ };
+
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+
+
+ Component.prototype.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null;
+
+ // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+ var tapMovementThreshold = 10;
+
+ // The maximum length a touch can be while still being considered a tap
+ var touchTimeThreshold = 200;
+
+ var couldBeTap = void 0;
+
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ };
+ // Record start time so we can detect a tap vs. "touch and hold"
+ touchStart = new Date().getTime();
+ // Reset couldBeTap tracking
+ couldBeTap = true;
+ }
+ });
+
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ };
+
+ // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap);
+
+ // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+ this.on('touchend', function (event) {
+ firstTouch = null;
+ // Proceed only if the touchmove/leave/cancel event didn't happen
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = new Date().getTime() - touchStart;
+
+ // Make sure the touch was less than the threshold to be considered a tap
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+ this.trigger('tap');
+ // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ };
+
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+
+
+ Component.prototype.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ }
+
+ // listener for reporting that the user is active
+ var report = bind(this.player(), this.player().reportUserActivity);
+
+ var touchHolding = void 0;
+
+ this.on('touchstart', function () {
+ report();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(touchHolding);
+ // report at the same interval as activityCheck
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report();
+ // stop the interval that maintains activity if the touch is holding
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ };
+
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+
+
+ Component.prototype.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId, disposeFn;
+
+ fn = bind(this, fn);
+
+ timeoutId = window$1.setTimeout(function () {
+ _this2.off('dispose', disposeFn);
+ fn();
+ }, timeout);
+
+ disposeFn = function disposeFn() {
+ return _this2.clearTimeout(timeoutId);
+ };
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.on('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+
+
+ Component.prototype.clearTimeout = function clearTimeout(timeoutId) {
+ window$1.clearTimeout(timeoutId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.off('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+
+
+ Component.prototype.setInterval = function setInterval(fn, interval) {
+ var _this3 = this;
+
+ fn = bind(this, fn);
+
+ var intervalId = window$1.setInterval(fn, interval);
+
+ var disposeFn = function disposeFn() {
+ return _this3.clearInterval(intervalId);
+ };
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.on('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+
+
+ Component.prototype.clearInterval = function clearInterval(intervalId) {
+ window$1.clearInterval(intervalId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.off('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+
+
+ Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this4 = this;
+
+ // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+ var id, disposeFn;
+
+ if (this.supportsRaf_) {
+ fn = bind(this, fn);
+
+ id = window$1.requestAnimationFrame(function () {
+ _this4.off('dispose', disposeFn);
+ fn();
+ });
+
+ disposeFn = function disposeFn() {
+ return _this4.cancelAnimationFrame(id);
+ };
+
+ disposeFn.guid = 'vjs-raf-' + id;
+ this.on('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.setTimeout(fn, 1000 / 60);
+ };
+
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+
+
+ Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ if (this.supportsRaf_) {
+ window$1.cancelAnimationFrame(id);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-raf-' + id;
+
+ this.off('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.clearTimeout(id);
+ };
+
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error('Illegal component name, "' + name + '"; must be a non-empty string.');
+ }
+
+ var Tech = Component.getComponent('Tech');
+
+ // We need to make sure this check is only done if Tech has been registered.
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason = void 0;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error('Illegal component, "' + name + '"; ' + reason + '.');
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players);
+
+ // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+
+ return ComponentToRegister;
+ };
+
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+
+
+ Component.getComponent = function getComponent(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Component.components_ && Component.components_[name]) {
+ return Component.components_[name];
+ }
+ };
+
+ return Component;
+}();
+
+/**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+Component.prototype.supportsRaf_ = typeof window$1.requestAnimationFrame === 'function' && typeof window$1.cancelAnimationFrame === 'function';
+
+Component.registerComponent('Component', Component);
+
+/**
+ * @file browser.js
+ * @module browser
+ */
+
+var USER_AGENT = window$1.navigator && window$1.navigator.userAgent || '';
+var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+
+/*
+ * Device is an iPhone
+ *
+ * @type {Boolean}
+ * @constant
+ * @private
+ */
+var IS_IPAD = /iPad/i.test(USER_AGENT);
+
+// The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+// to identify iPhones, we need to exclude iPads.
+// http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+var IS_IPOD = /iPod/i.test(USER_AGENT);
+var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+ return null;
+}();
+
+var IS_ANDROID = /Android/i.test(USER_AGENT);
+var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+ return null;
+}();
+
+var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+
+var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+var IS_EDGE = /Edge/i.test(USER_AGENT);
+var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+ return null;
+}();
+var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+}();
+
+var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+var TOUCH_ENABLED = isReal() && ('ontouchstart' in window$1 || window$1.navigator.maxTouchPoints || window$1.DocumentTouch && window$1.document instanceof window$1.DocumentTouch);
+
+var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ TOUCH_ENABLED: TOUCH_ENABLED
+});
+
+/**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+/**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @function time-ranges:indexFunction
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @depricated index must be set to a value, in the future this will throw an error.
+ */
+
+/**
+ * An object that contains ranges of time for various reasons.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this Object
+ *
+ * @property {time-ranges:indexFunction} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {time-ranges:indexFunction} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+/**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error('Failed to execute \'' + fnName + '\' on \'TimeRanges\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');
+ }
+}
+
+/**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ *
+ * @depricated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+}
+
+/**
+ * Create a time range object given ranges of time.
+ *
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+}
+
+/**
+ * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.
+ *
+ * @param {number|Array} start
+ * The start of a single range or an array of ranges
+ *
+ * @param {number} end
+ * The end of a single range.
+ *
+ * @private
+ */
+function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+ return createTimeRangesObj([[start, end]]);
+}
+
+/**
+ * @file buffer.js
+ * @module buffer
+ */
+
+/**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start = void 0;
+ var end = void 0;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i);
+
+ // buffered end can be bigger than duration by a very small fraction
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+}
+
+/**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+
+/**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+var FullscreenApi = {};
+
+// browser API methods
+var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
+// WebKit
+['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+// Old WebKit (Safari 5.1)
+['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+// Mozilla
+['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
+// Microsoft
+['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];
+
+var specApi = apiMap[0];
+var browserApi = void 0;
+
+// determine the supported set of functions
+for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document) {
+ browserApi = apiMap[i];
+ break;
+ }
+}
+
+// map the browser API names to the spec API names
+if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+}
+
+/**
+ * @file media-error.js
+ */
+
+/**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+function MediaError(value) {
+
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+}
+
+/**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+MediaError.prototype.code = 0;
+
+/**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+MediaError.prototype.message = '';
+
+/**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+MediaError.prototype.status = null;
+
+/**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_CUSTOM
+ * @property {string} 2 - MEDIA_ERR_ABORTED
+ * @property {string} 3 - MEDIA_ERR_NETWORK
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+/**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+};
+
+// Add types as properties on MediaError
+// e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum;
+ // values should be accessible on both the class and instance
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+}
+
+/**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {Boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+}
+
+/**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+}
+
+/**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+/**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+
+ return ret;
+};
+
+/**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+var textTracksToJson = function textTracksToJson(tech) {
+
+ var trackEls = tech.$$('track');
+
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+ return json;
+ });
+
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+};
+
+/**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+
+ return tech.textTracks();
+};
+
+var textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };
+
+/**
+ * @file modal-dialog.js
+ */
+
+var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+var ESC = 27;
+
+/**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+var ModalDialog = function (_Component) {
+ inherits(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ classCallCheck(this, ModalDialog);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+ _this.content(_this.options_.content);
+
+ // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + '-content'
+ }, {
+ role: 'document'
+ });
+
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + '-description vjs-control-text',
+ id: _this.el().getAttribute('aria-describedby')
+ });
+
+ textContent(_this.descEl_, _this.description());
+ _this.el_.appendChild(_this.descEl_);
+ _this.el_.appendChild(_this.contentEl_);
+ return _this;
+ }
+
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ ModalDialog.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + '_description',
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ ModalDialog.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles `keydown` events on the document, looking for ESC, which closes
+ * the modal.
+ *
+ * @param {EventTarget~Event} e
+ * The keypress that triggered this event.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
+ if (e.which === ESC && this.closeable()) {
+ this.close();
+ }
+ };
+
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+
+
+ ModalDialog.prototype.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ };
+
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+
+
+ ModalDialog.prototype.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.');
+
+ // Append a universal closeability message if the modal is closeable.
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ };
+
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+
+
+ ModalDialog.prototype.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalopen');
+ this.opened_ = true;
+
+ // Fill content if the modal has never opened before and
+ // never been filled.
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ }
+
+ // If the player was playing, pause it and take note of its previously
+ // playing state.
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ if (this.closeable()) {
+ this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ // Hide controls and note if they were enabled.
+ this.hadControls_ = player.controls();
+ player.controls(false);
+
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ };
+
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+
+
+ ModalDialog.prototype.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+ return this.opened_;
+ };
+
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+
+
+ ModalDialog.prototype.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ if (this.closeable()) {
+ this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ };
+
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+
+
+ ModalDialog.prototype.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton');
+
+ // If this is being made closeable and has no close button, add one.
+ if (closeable && !close) {
+
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ }
+
+ // If this is being made uncloseable and has a close button, remove it.
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+ return this.closeable_;
+ };
+
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+
+
+ ModalDialog.prototype.fill = function fill() {
+ this.fillWith(this.content());
+ };
+
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+
+
+ ModalDialog.prototype.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true;
+
+ // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalfill');
+
+ // Re-inject the re-filled content element.
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ }
+
+ // make sure that the close button is last in the dialog DOM
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ };
+
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+
+
+ ModalDialog.prototype.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalempty');
+ };
+
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+
+
+ ModalDialog.prototype.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+ return this.content_;
+ };
+
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document.activeElement;
+ var playerEl = this.player_.el_;
+
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+
+ this.focus();
+
+ this.on(document, 'keydown', this.handleKeyDown);
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+
+ this.off(document, 'keydown', this.handleKeyDown);
+ };
+
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {
+ // exit early if it isn't a tab key
+ if (event.which !== 9) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex = void 0;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ };
+
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window$1.HTMLAnchorElement || child instanceof window$1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window$1.HTMLInputElement || child instanceof window$1.HTMLSelectElement || child instanceof window$1.HTMLTextAreaElement || child instanceof window$1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window$1.HTMLIFrameElement || child instanceof window$1.HTMLObjectElement || child instanceof window$1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+}(Component);
+
+/**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+};
+
+Component.registerComponent('ModalDialog', ModalDialog);
+
+/**
+ * @file track-list.js
+ */
+
+/**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+var TrackList = function (_EventTarget) {
+ inherits(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, TrackList);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ _this.tracks_ = [];
+
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(_this, 'length', {
+ get: function get$$1() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+ return _this;
+ }
+
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ TrackList.prototype.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.tracks_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate tracks
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+ this.trigger({
+ track: track,
+ type: 'addtrack'
+ });
+ }
+ };
+
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+
+
+ TrackList.prototype.removeTrack = function removeTrack(rtrack) {
+ var track = void 0;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+ this.trigger({
+ track: track,
+ type: 'removetrack'
+ });
+ };
+
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {String} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+
+
+ TrackList.prototype.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+}(EventTarget);
+
+/**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+};
+
+// emulate attribute EventHandler support to allow for feature detection
+for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+}
+
+/**
+ * @file audio-track-list.js
+ */
+
+/**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another audio track is enabled, disable it
+ list[i].enabled = false;
+ }
+};
+
+/**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+var AudioTrackList = function (_TrackList) {
+ inherits(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, AudioTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+ return _this;
+ }
+
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ AudioTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('enabledchange', function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return AudioTrackList;
+}(TrackList);
+
+/**
+ * @file video-track-list.js
+ */
+
+/**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another video track is enabled, disable it
+ list[i].selected = false;
+ }
+};
+
+/**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+var VideoTrackList = function (_TrackList) {
+ inherits(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, VideoTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+ Object.defineProperty(_this, 'selectedIndex', {
+ get: function get$$1() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+ return -1;
+ },
+ set: function set$$1() {}
+ });
+ return _this;
+ }
+
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ VideoTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('selectedchange', function () {
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return VideoTrackList;
+}(TrackList);
+
+/**
+ * @file text-track-list.js
+ */
+
+/**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+var TextTrackList = function (_TrackList) {
+ inherits(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ classCallCheck(this, TextTrackList);
+ return possibleConstructorReturn(this, _TrackList.apply(this, arguments));
+ }
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ TextTrackList.prototype.addTrack = function addTrack(track) {
+ _TrackList.prototype.addTrack.call(this, track);
+
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+ track.addEventListener('modechange', bind(this, function () {
+ this.queueTrigger('change');
+ }));
+
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', bind(this, function () {
+ this.trigger('selectedlanguagechange');
+ }));
+ }
+ };
+
+ return TextTrackList;
+}(TrackList);
+
+/**
+ * @file html-track-element-list.js
+ */
+
+/**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+var HtmlTrackElementList = function () {
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList() {
+ var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, HtmlTrackElementList);
+
+ this.trackElements_ = [];
+
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.trackElements_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate elements
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ };
+
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_ = void 0;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+
+ break;
+ }
+ }
+
+ return trackElement_;
+ };
+
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ this.trackElements_.splice(i, 1);
+
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+}();
+
+/**
+ * @file text-track-cue-list.js
+ */
+
+/**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+/**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+var TextTrackCueList = function () {
+
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ classCallCheck(this, TextTrackCueList);
+
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.length_;
+ }
+ });
+ }
+
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ TextTrackCueList.prototype.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get$$1() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ };
+
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+
+
+ TextTrackCueList.prototype.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+}();
+
+/**
+ * @file track-kinds.js
+ */
+
+/**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+};
+
+/**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+};
+
+/**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+};
+
+/**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+};
+
+/**
+ * @file track.js
+ */
+
+/**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+var Track = function (_EventTarget) {
+ inherits(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, Track);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_this, key, {
+ get: function get$$1() {
+ return trackProps[key];
+ },
+ set: function set$$1() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+ return _this;
+ }
+
+ return Track;
+}(EventTarget);
+
+/**
+ * @file url.js
+ * @module url
+ */
+
+/**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+/**
+ * Resolve and parse the elements of a URL.
+ *
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+ // add the url to an anchor and let the browser parse the URL
+ var a = document.createElement('a');
+
+ a.href = url;
+
+ // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div = void 0;
+
+ if (addToBody) {
+ div = document.createElement('div');
+ div.innerHTML = '<a href="' + url + '"></a>';
+ a = div.firstChild;
+ // prevent the div from affecting layout
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document.body.appendChild(div);
+ }
+
+ // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ }
+
+ // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window$1.location.protocol;
+ }
+
+ if (addToBody) {
+ document.body.removeChild(div);
+ }
+
+ return details;
+};
+
+/**
+ * Get absolute version of relative URL. Used to tell flash correct URL.
+ *
+ *
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document.createElement('div');
+
+ div.innerHTML = '<a href="' + url + '">x</a>';
+ url = div.firstChild.href;
+ }
+
+ return url;
+};
+
+/**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @returns {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+};
+
+/**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window$1.location;
+ var urlInfo = parseUrl(url);
+
+ // IE8 protocol relative urls will return ':' for protocol
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
+
+ // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+
+ return crossOrigin;
+};
+
+var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+});
+
+/**
+ * @file text-track.js
+ */
+
+/**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+var parseCues = function parseCues(srcContent, track) {
+ var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, window$1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (window$1.console && window$1.console.groupCollapsed) {
+ window$1.console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return log$1.error(error);
+ });
+ if (window$1.console && window$1.console.groupEnd) {
+ window$1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+};
+
+/**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ xhr(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log$1.error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof window$1.WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ log$1.error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+};
+
+/**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+var TextTrack = function (_Track) {
+ inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings.default;
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ _this.tech_ = settings.tech;
+
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_this, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_this, {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ default: {
+ get: function get$$1() {
+ return default_;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get$$1() {
+ return mode;
+ },
+ set: function set$$1(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+
+
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set$$1() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _this);
+ } else {
+ _this.loaded_ = true;
+ }
+ return _this;
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window$1.vttjs && !(originalCue instanceof window$1.vttjs.VTTCue)) {
+ cue = new window$1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+}(Track);
+
+/**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+};
+
+/**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+var AudioTrack = function (_Track) {
+ inherits(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, AudioTrack);
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var enabled = false;
+
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'enabled', {
+ get: function get$$1() {
+ return enabled;
+ },
+ set: function set$$1(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+ enabled = newEnabled;
+
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enabledchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+}(Track);
+
+/**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+var VideoTrack = function (_Track) {
+ inherits(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, VideoTrack);
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var selected = false;
+
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'selected', {
+ get: function get$$1() {
+ return selected;
+ },
+ set: function set$$1(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+ selected = newSelected;
+
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('selectedchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+ return _this;
+ }
+
+ return VideoTrack;
+}(Track);
+
+/**
+ * @file html-track-element.js
+ */
+
+/**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+var NONE = 0;
+var LOADING = 1;
+var LOADED = 2;
+var ERROR = 3;
+
+/**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+var HTMLTrackElement = function (_EventTarget) {
+ inherits(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, HTMLTrackElement);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var readyState = void 0;
+
+ var track = new TextTrack(options);
+
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this.default = track.default;
+
+ Object.defineProperties(_this, {
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get$$1() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get$$1() {
+ return track;
+ }
+ }
+ });
+
+ readyState = NONE;
+
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _this
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+}(EventTarget);
+
+HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+};
+
+HTMLTrackElement.NONE = NONE;
+HTMLTrackElement.LOADING = LOADING;
+HTMLTrackElement.LOADED = LOADED;
+HTMLTrackElement.ERROR = ERROR;
+
+/*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+};
+
+Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + 'Tracks';
+ NORMAL[type].privateName = type + 'Tracks_';
+});
+
+var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+};
+
+var ALL = mergeOptions(NORMAL, REMOTE);
+
+REMOTE.names = Object.keys(REMOTE);
+NORMAL.names = Object.keys(NORMAL);
+ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+/**
+ * @file tech.js
+ */
+
+/**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+/**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new ALL.text.TrackClass(options);
+
+ tracks.addTrack(track);
+
+ return track;
+}
+
+/**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+var Tech = function (_Component) {
+ inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+ classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ });
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ Tech.prototype.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ };
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this3[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+ list.removeTrack(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+ return createTimeRanges();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + 'trackchange');
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window$1.WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (document.body.contains(this.el())) {
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = document.createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ window$1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var _this7 = this;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.playsinline = function playsinline() {};
+
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPlaysinline = function setPlaysinline() {};
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks() {};
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+
+ Tech.techs_[name] = tech;
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (window$1 && window$1.videojs && window$1.videojs[name]) {
+ log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return window$1.videojs[name];
+ }
+ };
+
+ return Tech;
+}(Component);
+
+/**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+/**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+/**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+/**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+/**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+});
+
+/**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+/**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+/**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+/**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresVolumeControl = true;
+
+/**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+Tech.prototype.featuresMuteControl = true;
+
+/**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresFullscreenResize = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresPlaybackRate = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresProgressEvents = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresSourceset = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresTimeupdateEvents = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresNativeTextTracks = false;
+
+/**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'seeking', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log$1.error('No source handler found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+};
+
+// The base Tech class needs to be registered as a Component. It is the only
+// Tech that can be registered as a Component.
+Component.registerComponent('Tech', Tech);
+Tech.registerTech('Tech', Tech);
+
+/**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+Tech.defaultTechOrder_ = [];
+
+var middlewares = {};
+var middlewareInstances = {};
+
+var TERMINATOR = {};
+
+function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+}
+
+function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+}
+
+function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+}
+
+/**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ */
+function get$1(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+}
+
+/**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ */
+function set$1(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+}
+
+/**
+ * Takes the argument given to the player and calls the `call` version of the method
+ * on each middleware from left to right.
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ */
+function mediate(middleware, tech, method) {
+ var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR;
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+
+ executeRight(middleware, method, returnValue, terminated);
+
+ return returnValue;
+}
+
+var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1
+};
+
+var allowedSetters = {
+ setCurrentTime: 1
+};
+
+var allowedMediators = {
+ play: 1,
+ pause: 1
+};
+
+function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+}
+
+function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+}
+
+function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+}
+
+/**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ */
+function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+}
+
+function setSourceHelper() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
+ var next = arguments[2];
+ var player = arguments[3];
+ var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
+ var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+ var mwFactory = middleware[0],
+ mwrest = middleware.slice(1);
+
+ // if mwFactory is a string, then we're at a fork in the road
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+ // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory);
+
+ // if setSource isn't present, implicitly select this middleware
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ // we've succeeded, now we need to go deeper
+ acc.push(mw);
+
+ // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+}
+
+/**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL'
+};
+
+/**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+var getMimetype = function getMimetype() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+
+ return mimetype || '';
+};
+
+/**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ }
+
+ // 1. check for the type in the `source` cache
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ }
+
+ // 2. see if we have this source in our `currentSources` cache
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ }
+
+ // 3. look for the src url in source elements and use the type there
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ }
+
+ // 4. finally fallback to our list of mime types based on src url extension
+ return getMimetype(src);
+};
+
+/**
+ * @module filter-source
+ */
+
+/**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({ src: src })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+};
+
+/**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+function fixSource(src) {
+ var mimetype = getMimetype(src.src);
+
+ if (!src.type && mimetype) {
+ src.type = mimetype;
+ }
+
+ return src;
+}
+
+/**
+ * @file loader.js
+ */
+
+/**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+var MediaLoader = function (_Component) {
+ inherits(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ classCallCheck(this, MediaLoader);
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({ createEl: false }, options);
+
+ // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the browser supports this technology
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+ return _this;
+ }
+
+ return MediaLoader;
+}(Component);
+
+Component.registerComponent('MediaLoader', MediaLoader);
+
+/**
+ * @file clickable-component.js
+ */
+
+/**
+ * Clickable Component which is clickable or keyboard actionable,
+ * but is not a native HTML button.
+ *
+ * @extends Component
+ */
+
+var ClickableComponent = function (_Component) {
+ inherits(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ classCallCheck(this, ClickableComponent);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.emitTapEvents();
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createEl = function createEl$$1() {
+ var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');
+ }
+
+ // Add ARIA attributes for clickable element which is not a native HTML button
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ ClickableComponent.prototype.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a control text element on this `Component`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+
+ return this.controlTextEl_;
+ };
+
+ /**
+ * Get or set the localize text to use for the controls on the `Component`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ ClickableComponent.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Enable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ }
+ };
+
+ /**
+ * Disable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ };
+
+ /**
+ * This gets called when a `ClickableComponent` gets:
+ * - Clicked (via the `click` event, listening starts in the constructor)
+ * - Tapped (via the `tap` event, listening starts in the constructor)
+ * - The following things happen in order:
+ * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the
+ * `ClickableComponent`.
+ * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using
+ * {@link ClickableComponent#handleKeyPress}.
+ * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses
+ * the space or enter key.
+ * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`
+ * event as a parameter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+
+
+ ClickableComponent.prototype.handleClick = function handleClick(event) {};
+
+ /**
+ * This gets called when a `ClickableComponent` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ ClickableComponent.prototype.handleFocus = function handleFocus(event) {
+ on(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when this ClickableComponent has focus and a key gets pressed down. By
+ * default it will call `this.handleClick` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.trigger('click');
+ } else if (_Component.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ /**
+ * Called when a `ClickableComponent` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ ClickableComponent.prototype.handleBlur = function handleBlur(event) {
+ off(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ return ClickableComponent;
+}(Component);
+
+Component.registerComponent('ClickableComponent', ClickableComponent);
+
+/**
+ * @file poster-image.js
+ */
+
+/**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+var PosterImage = function (_ClickableComponent) {
+ inherits(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ classCallCheck(this, PosterImage);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.update();
+ player.on('posterchange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+ _ClickableComponent.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ PosterImage.prototype.createEl = function createEl$$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+
+ return el;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+
+
+ PosterImage.prototype.update = function update(event) {
+ var url = this.player().poster();
+
+ this.setSrc(url);
+
+ // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.setSrc = function setSrc(url) {
+ var backgroundImage = '';
+
+ // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+ if (url) {
+ backgroundImage = 'url("' + url + '")';
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+
+
+ PosterImage.prototype.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+}(ClickableComponent);
+
+Component.registerComponent('PosterImage', PosterImage);
+
+/**
+ * @file text-track-display.js
+ */
+
+var darkGray = '#222';
+var lightGray = '#ccc';
+var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+};
+
+/**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+function constructColor(color, opacity) {
+ var hex = void 0;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+}
+
+/**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+}
+
+/**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+var TextTrackDisplay = function (_Component) {
+ inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ classCallCheck(this, TextTrackDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ var updateDisplayHandler = bind(_this, _this.updateDisplay);
+
+ player.on('loadstart', bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadstart', bind(_this, _this.preselectTrack));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+
+ window$1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window$1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+ var preferredTrack = void 0;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language === track.language) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track;
+ // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ }
+
+ // clear everything if offTextTrackMenuItem was clicked
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track.default) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ };
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof window$1.WebVTT === 'function') {
+ window$1.WebVTT.processCues(window$1, [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof window$1.WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var cues = [];
+
+ for (var _i = 0; _i < track.activeCues.length; _i++) {
+ cues.push(track.activeCues[_i]);
+ }
+
+ window$1.WebVTT.processCues(window$1, cues, this.el_);
+
+ if (!this.player_.textTrackSettings) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window$1.parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+}(Component);
+
+Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+/**
+ * @file loading-spinner.js
+ */
+
+/**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+var LoadingSpinner = function (_Component) {
+ inherits(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ classCallCheck(this, LoadingSpinner);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ LoadingSpinner.prototype.createEl = function createEl$$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+
+ return el;
+ };
+
+ return LoadingSpinner;
+}(Component);
+
+Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+/**
+ * @file button.js
+ */
+
+/**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+var Button = function (_ClickableComponent) {
+ inherits(Button, _ClickableComponent);
+
+ function Button() {
+ classCallCheck(this, Button);
+ return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ Button.prototype.createEl = function createEl(tag) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ tag = 'button';
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props);
+
+ // Add attributes for button element
+ attributes = assign({
+
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Button.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var className = this.constructor.name;
+
+ log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');
+
+ // Avoid the error message generated by ClickableComponent's addChild method
+ return Component.prototype.addChild.call(this, child, options);
+ };
+
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+
+
+ Button.prototype.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+ this.el_.removeAttribute('disabled');
+ };
+
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+
+
+ Button.prototype.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+ this.el_.setAttribute('disabled', 'disabled');
+ };
+
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+
+
+ Button.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.
+ if (event.which === 32 || event.which === 13) {
+ return;
+ }
+
+ // Pass keypress handling up for unsupported keys
+ _ClickableComponent.prototype.handleKeyPress.call(this, event);
+ };
+
+ return Button;
+}(ClickableComponent);
+
+Component.registerComponent('Button', Button);
+
+/**
+ * @file big-play-button.js
+ */
+
+/**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+var BigPlayButton = function (_Button) {
+ inherits(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ classCallCheck(this, BigPlayButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ };
+
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ BigPlayButton.prototype.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play();
+
+ // exit early if clicked via the mouse
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyPress.call(this, event);
+ };
+
+ BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+}(Button);
+
+/**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+BigPlayButton.prototype.controlText_ = 'Play Video';
+
+Component.registerComponent('BigPlayButton', BigPlayButton);
+
+/**
+ * @file close-button.js
+ */
+
+/**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+var CloseButton = function (_Button) {
+ inherits(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ classCallCheck(this, CloseButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CloseButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when this will be
+ * triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+
+
+ CloseButton.prototype.handleClick = function handleClick(event) {
+
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({ type: 'close', bubbles: false });
+ };
+
+ return CloseButton;
+}(Button);
+
+Component.registerComponent('CloseButton', CloseButton);
+
+/**
+ * @file play-toggle.js
+ */
+
+/**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+var PlayToggle = function (_Button) {
+ inherits(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ classCallCheck(this, PlayToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'play', _this.handlePlay);
+ _this.on(player, 'pause', _this.handlePause);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlayToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlayToggle.prototype.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+
+
+ PlayToggle.prototype.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ };
+
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+
+
+ PlayToggle.prototype.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+ // change the button text to "Pause"
+ this.controlText('Pause');
+ };
+
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+
+
+ PlayToggle.prototype.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ // change the button text to "Play"
+ this.controlText('Play');
+ };
+
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ PlayToggle.prototype.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended');
+ // change the button text to "Replay"
+ this.controlText('Replay');
+
+ // on the next seek remove the replay button
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+}(Button);
+
+/**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlayToggle.prototype.controlText_ = 'Play';
+
+Component.registerComponent('PlayToggle', PlayToggle);
+
+/**
+ * @file format-time.js
+ * @module format-time
+ */
+
+/**
+* Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)
+* will force a number of leading zeros to cover the length of the guide.
+*
+* @param {number} seconds
+* Number of seconds to be turned into a string
+*
+* @param {number} guide
+* Number (in seconds) to model the string after
+*
+* @return {string}
+* Time formatted as H:MM:SS or M:SS
+*/
+var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s;
+};
+
+var implementation = defaultImplementation;
+
+/**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime implementation.
+ * Will receive the current time in seconds and the guide (in seconds) as arguments.
+ */
+function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+}
+
+/**
+ * Resets formatTime to the default implementation.
+ */
+function resetFormatTime() {
+ implementation = defaultImplementation;
+}
+
+function formatTime (seconds) {
+ var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;
+
+ return implementation(seconds, guide);
+}
+
+/**
+ * @file time-display.js
+ */
+
+/**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+var TimeDisplay = function (_Component) {
+ inherits(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ classCallCheck(this, TimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TimeDisplay.prototype.createEl = function createEl$$1(plainName) {
+ var className = this.buildCSSClass();
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + ' vjs-time-control vjs-control',
+ innerHTML: '<span class="vjs-control-text">' + this.localize(this.labelText_) + '\xA0</span>'
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + '-display'
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off'
+ });
+
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ TimeDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ };
+
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ };
+
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ };
+
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ TimeDisplay.prototype.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+}(Component);
+
+/**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+TimeDisplay.prototype.labelText_ = 'Time';
+
+/**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+TimeDisplay.prototype.controlText_ = 'Time';
+
+Component.registerComponent('TimeDisplay', TimeDisplay);
+
+/**
+ * @file current-time-display.js
+ */
+
+/**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+var CurrentTimeDisplay = function (_TimeDisplay) {
+ inherits(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ classCallCheck(this, CurrentTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ };
+
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+
+ this.updateFormattedTime_(time);
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+}(TimeDisplay);
+
+/**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+/**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+
+Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+/**
+ * @file duration-display.js
+ */
+
+/**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+var DurationDisplay = function (_TimeDisplay) {
+ inherits(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ classCallCheck(this, DurationDisplay);
+
+ // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.updateContent);
+
+ // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ };
+
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+
+
+ DurationDisplay.prototype.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (duration && this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+}(TimeDisplay);
+
+/**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DurationDisplay.prototype.labelText_ = 'Duration';
+
+/**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+DurationDisplay.prototype.controlText_ = 'Duration';
+
+Component.registerComponent('DurationDisplay', DurationDisplay);
+
+/**
+ * @file time-divider.js
+ */
+
+/**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+var TimeDivider = function (_Component) {
+ inherits(TimeDivider, _Component);
+
+ function TimeDivider() {
+ classCallCheck(this, TimeDivider);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeDivider.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ });
+ };
+
+ return TimeDivider;
+}(Component);
+
+Component.registerComponent('TimeDivider', TimeDivider);
+
+/**
+ * @file remaining-time-display.js
+ */
+/**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+var RemainingTimeDisplay = function (_TimeDisplay) {
+ inherits(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ classCallCheck(this, RemainingTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ };
+
+ /**
+ * The remaining time display prefixes numbers with a "minus" character.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ // TODO: The "-" should be decorative, and not announced by a screen reader
+ return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);
+ };
+
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+
+
+ RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+}(TimeDisplay);
+
+/**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+/**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+
+Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+/**
+ * @file live-display.js
+ */
+
+// TODO - Future make it click to snap to live
+
+/**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+var LiveDisplay = function (_Component) {
+ inherits(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ classCallCheck(this, LiveDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.updateShowing();
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LiveDisplay.prototype.createEl = function createEl$$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: '<span class="vjs-control-text">' + this.localize('Stream Type') + '\xA0</span>' + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ LiveDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+
+
+ LiveDisplay.prototype.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+}(Component);
+
+Component.registerComponent('LiveDisplay', LiveDisplay);
+
+/**
+ * @file slider.js
+ */
+
+/**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+var Slider = function (_Component) {
+ inherits(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ classCallCheck(this, Slider);
+
+ // Set property names to bar to match with the child Slider class is looking for
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.bar = _this.getChild(_this.options_.barName);
+
+ // Set a horizontal or vertical class on the slider depending on the slider type
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ Slider.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+
+
+ Slider.prototype.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ this.on('click', this.handleClick);
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+
+
+ Slider.prototype.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+ var doc = this.bar.el_.ownerDocument;
+
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+ this.enabled_ = false;
+ };
+
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Slider.prototype.createEl = function createEl$$1(type) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+
+
+ Slider.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ }
+ // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+ blockTextSelection();
+
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('slideractive');
+
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+
+ this.handleMouseMove(event);
+ };
+
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ Slider.prototype.handleMouseMove = function handleMouseMove(event) {};
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+
+
+ Slider.prototype.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+
+ unblockTextSelection();
+
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('sliderinactive');
+
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+
+ this.update();
+ };
+
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @returns {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+
+
+ Slider.prototype.update = function update() {
+
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ }
+
+ // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+ var progress = this.getPercent();
+ var bar = this.bar;
+
+ // If there's no bar...
+ if (!bar) {
+ return;
+ }
+
+ // Protect against no duration and other division issues
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ }
+
+ // Convert to a percentage for setting
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style;
+
+ // Set the new bar width or height
+ if (this.vertical()) {
+ style.height = percentage;
+ } else {
+ style.width = percentage;
+ }
+
+ return progress;
+ };
+
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+
+
+ Slider.prototype.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+ return position.x;
+ };
+
+ /**
+ * Handle a `focus` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to run.
+ *
+ * @listens focus
+ */
+
+
+ Slider.prototype.handleFocus = function handleFocus() {
+ this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+
+
+ Slider.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepBack();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepForward();
+ }
+ };
+
+ /**
+ * Handle a `blur` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to run.
+ *
+ * @listens blur
+ */
+
+ Slider.prototype.handleBlur = function handleBlur() {
+ this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+
+
+ Slider.prototype.handleClick = function handleClick(event) {
+ event.stopImmediatePropagation();
+ event.preventDefault();
+ };
+
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+
+
+ Slider.prototype.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+}(Component);
+
+Component.registerComponent('Slider', Slider);
+
+/**
+ * @file load-progress-bar.js
+ */
+
+/**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+var LoadProgressBar = function (_Component) {
+ inherits(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ classCallCheck(this, LoadProgressBar);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.partEls_ = [];
+ _this.on(player, 'progress', _this.update);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LoadProgressBar.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Loaded') + '</span>: 0%</span>'
+ });
+ };
+
+ LoadProgressBar.prototype.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+
+
+ LoadProgressBar.prototype.update = function update(event) {
+ var buffered = this.player_.buffered();
+ var duration = this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+
+ // get the percent width of a time compared to the total end
+ var percentify = function percentify(time, end) {
+ // no NaN
+ var percent = time / end || 0;
+
+ return (percent >= 1 ? 1 : percent) * 100 + '%';
+ };
+
+ // update the width of the progress bar
+ this.el_.style.width = percentify(bufferedEnd, duration);
+
+ // add child elements to represent the individual buffered time ranges
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ }
+
+ // set the percent based on the width of the progress bar (bufferedEnd)
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ }
+
+ // remove unused buffered range elements
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+}(Component);
+
+Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+/**
+ * @file time-tooltip.js
+ */
+
+/**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+var TimeTooltip = function (_Component) {
+ inherits(TimeTooltip, _Component);
+
+ function TimeTooltip() {
+ classCallCheck(this, TimeTooltip);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeTooltip.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ });
+ };
+
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+ // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+ if (!playerRect || !tooltipRect) {
+ return;
+ }
+
+ // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+ // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+ // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+ var pullTooltipBy = tooltipRect.width / 2;
+
+ // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ }
+
+ // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = '-' + pullTooltipBy + 'px';
+ textContent(this.el_, content);
+ };
+
+ return TimeTooltip;
+}(Component);
+
+Component.registerComponent('TimeTooltip', TimeTooltip);
+
+/**
+ * @file play-progress-bar.js
+ */
+
+/**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+var PlayProgressBar = function (_Component) {
+ inherits(PlayProgressBar, _Component);
+
+ function PlayProgressBar() {
+ classCallCheck(this, PlayProgressBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ PlayProgressBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Progress') + '</span>: 0%</span>'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();
+
+ var content = formatTime(time, _this2.player_.duration());
+ var timeTooltip = _this2.getChild('timeTooltip');
+
+ if (timeTooltip) {
+ timeTooltip.update(seekBarRect, seekBarPoint, content);
+ }
+ });
+ };
+
+ return PlayProgressBar;
+}(Component);
+
+/**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+PlayProgressBar.prototype.options_ = {
+ children: []
+};
+
+// Time tooltips should not be added to a player on mobile devices
+if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+}
+
+Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+/**
+ * @file mouse-time-display.js
+ */
+
+/**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+var MouseTimeDisplay = function (_Component) {
+ inherits(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ classCallCheck(this, MouseTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.update = throttle(bind(_this, _this.update), 25);
+ return _this;
+ }
+
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ MouseTimeDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var duration = _this2.player_.duration();
+ var content = formatTime(seekBarPoint * duration, duration);
+
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';
+ _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);
+ });
+ };
+
+ return MouseTimeDisplay;
+}(Component);
+
+/**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+};
+
+Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+/**
+ * @file seek-bar.js
+ */
+
+// The number of seconds the `step*` functions move the timeline.
+var STEP_SECONDS = 5;
+
+// The interval at which the bar should update as it progresses.
+var UPDATE_REFRESH_INTERVAL = 30;
+
+/**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+var SeekBar = function (_Slider) {
+ inherits(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ classCallCheck(this, SeekBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.setEventHandlers_();
+ return _this;
+ }
+
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {
+ var _this2 = this;
+
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);
+
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+
+ // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+ this.updateInterval = null;
+
+ this.on(this.player_, ['playing'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+
+ _this2.updateInterval = _this2.setInterval(function () {
+ _this2.requestAnimationFrame(function () {
+ _this2.update();
+ });
+ }, UPDATE_REFRESH_INTERVAL);
+ });
+
+ this.on(this.player_, ['ended', 'pause', 'waiting'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+ });
+
+ this.on(this.player_, ['timeupdate', 'ended'], this.update);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ SeekBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ };
+
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.update_ = function update_(currentTime, percent) {
+ var duration = this.player_.duration();
+
+ // machine readable value of progress bar (percentage complete)
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+
+ // human readable value of progress bar (time complete)
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+
+ // Update the `PlayProgressBar`.
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ };
+
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @returns {number}
+ * The current percent at a number from 0-1
+ */
+
+
+ SeekBar.prototype.update = function update(event) {
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ };
+
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ };
+
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ SeekBar.prototype.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ };
+
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+
+
+ SeekBar.prototype.getPercent = function getPercent() {
+ var percent = this.getCurrentTime_() / this.player_.duration();
+
+ return percent >= 1 ? 1 : percent || 0;
+ };
+
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+
+
+ SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime = this.calculateDistance(event) * this.player_.duration();
+
+ // Don't let video end while scrubbing.
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+
+ // Set new time (tell player to seek to new time)
+ this.player_.currentTime(newTime);
+ };
+
+ SeekBar.prototype.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ SeekBar.prototype.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ };
+
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+
+
+ SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event);
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ if (event) {
+ event.stopPropagation();
+ }
+ this.player_.scrubbing(false);
+
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ };
+
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ };
+
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ };
+
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+
+
+ SeekBar.prototype.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down. By
+ * default it will call `this.handleAction` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.handleAction(event);
+ } else if (_Slider.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Slider.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ return SeekBar;
+}(Slider);
+
+/**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+};
+
+// MouseTimeDisplay tooltips should not be added to a player on mobile devices
+if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+}
+
+/**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+SeekBar.prototype.playerEvent = 'timeupdate';
+
+Component.registerComponent('SeekBar', SeekBar);
+
+/**
+ * @file progress-control.js
+ */
+
+/**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+var ProgressControl = function (_Component) {
+ inherits(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ classCallCheck(this, ProgressControl);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+ _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ ProgressControl.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ };
+
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+
+
+ ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+ // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ };
+
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ };
+
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ ProgressControl.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Disable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+
+ this.addClass('disabled');
+
+ this.enabled_ = false;
+ };
+
+ /**
+ * Enable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+}(Component);
+
+/**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+};
+
+Component.registerComponent('ProgressControl', ProgressControl);
+
+/**
+ * @file fullscreen-toggle.js
+ */
+
+/**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+var FullscreenToggle = function (_Button) {
+ inherits(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ classCallCheck(this, FullscreenToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document[FullscreenApi.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+
+
+ FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ };
+
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ FullscreenToggle.prototype.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+}(Button);
+
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+
+Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+/**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+};
+
+/**
+ * @file volume-level.js
+ */
+
+/**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+var VolumeLevel = function (_Component) {
+ inherits(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ classCallCheck(this, VolumeLevel);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ VolumeLevel.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+}(Component);
+
+Component.registerComponent('VolumeLevel', VolumeLevel);
+
+/**
+ * @file volume-bar.js
+ */
+
+/**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+var VolumeBar = function (_Slider) {
+ inherits(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ classCallCheck(this, VolumeBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.on('slideractive', _this.updateLastVolume_);
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ };
+
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+
+
+ VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ };
+
+ /**
+ * If the player is muted unmute it.
+ */
+
+
+ VolumeBar.prototype.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ };
+
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+
+
+ VolumeBar.prototype.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+ return this.player_.volume();
+ };
+
+ /**
+ * Increase volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ };
+
+ /**
+ * Decrease volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ };
+
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+
+
+ VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ };
+
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+
+
+ VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ };
+
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+
+
+ VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+}(Slider);
+
+/**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+};
+
+/**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+VolumeBar.prototype.playerEvent = 'volumechange';
+
+Component.registerComponent('VolumeBar', VolumeBar);
+
+/**
+ * @file volume-control.js
+ */
+
+/**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+var VolumeControl = function (_Component) {
+ inherits(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumeControl);
+
+ options.vertical = options.vertical || false;
+
+ // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ checkVolumeSupport(_this, player);
+
+ _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+
+ _this.on('mousedown', _this.handleMouseDown);
+ _this.on('touchstart', _this.handleMouseDown);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+ _this.addClass('vjs-slider-active');
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+ _this.removeClass('vjs-slider-active');
+ _this.trigger('sliderinactive');
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeControl.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-control vjs-control ' + orientationClass
+ });
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+}(Component);
+
+/**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+};
+
+Component.registerComponent('VolumeControl', VolumeControl);
+
+/**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+};
+
+/**
+ * @file mute-toggle.js
+ */
+
+/**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+var MuteToggle = function (_Button) {
+ inherits(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ classCallCheck(this, MuteToggle);
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ checkMuteSupport(_this, player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MuteToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MuteToggle.prototype.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ };
+
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+
+
+ MuteToggle.prototype.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ };
+
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3;
+
+ // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+ if (IS_IOS) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ }
+
+ // TODO improve muted icon classes
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, 'vjs-vol-' + i);
+ }
+ addClass(this.el_, 'vjs-vol-' + level);
+ };
+
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+}(Button);
+
+/**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+MuteToggle.prototype.controlText_ = 'Mute';
+
+Component.registerComponent('MuteToggle', MuteToggle);
+
+/**
+ * @file volume-control.js
+ */
+
+/**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+var VolumePanel = function (_Component) {
+ inherits(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumePanel);
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ }
+
+ // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+ return _this;
+ }
+
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ };
+
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ };
+
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+
+
+ VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ }
+
+ // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumePanel.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-panel vjs-control ' + orientationClass
+ });
+ };
+
+ return VolumePanel;
+}(Component);
+
+/**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+};
+
+Component.registerComponent('VolumePanel', VolumePanel);
+
+/**
+ * @file menu.js
+ */
+
+/**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+var Menu = function (_Component) {
+ inherits(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ classCallCheck(this, Menu);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyPress);
+ return _this;
+ }
+
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+
+
+ Menu.prototype.addItem = function addItem(component) {
+ this.addChild(component);
+ component.on('click', bind(this, function (event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+
+ // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+ if (component.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }));
+ };
+
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+
+
+ Menu.prototype.createEl = function createEl$$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_);
+
+ // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+
+ return el;
+ };
+
+ Menu.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+
+
+ Menu.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepForward();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepBack();
+ }
+ };
+
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+
+
+ Menu.prototype.focus = function focus() {
+ var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+}(Component);
+
+Component.registerComponent('Menu', Menu);
+
+/**
+ * @file menu-button.js
+ */
+
+/**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+var MenuButton = function (_Component) {
+ inherits(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, MenuButton);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+ // Add buildCSSClass values to the button, not the wrapper
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+ _this.on(_this.menuButton_, 'focus', _this.handleFocus);
+ _this.on(_this.menuButton_, 'blur', _this.handleBlur);
+
+ _this.on('keydown', _this.handleSubmenuKeyPress);
+ return _this;
+ }
+
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ MenuButton.prototype.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+
+
+ MenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, { menuButton: this });
+
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+ this.hideThreshold_ = 0;
+
+ // Add a title list item to the top
+ if (this.options_.title) {
+ var title = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+
+ this.hideThreshold_ += 1;
+
+ menu.children_.unshift(title);
+ prependTo(title, menu.contentEl());
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+
+
+ MenuButton.prototype.createItems = function createItems() {};
+
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuButton.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ };
+
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+
+
+ MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ // TODO: Fix the CSS so that this isn't necessary
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ MenuButton.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();
+
+ return this.menuButton_.controlText(text, el);
+ };
+
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuButton.prototype.handleClick = function handleClick(event) {
+ // When you click the button it adds focus, which will show the menu.
+ // So we'll remove focus when the mouse leaves the button. Focus is needed
+ // for tab navigation.
+
+ this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {
+ this.unpressButton();
+ this.el_.blur();
+ }));
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ };
+
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+
+
+ MenuButton.prototype.focus = function focus() {
+ this.menuButton_.focus();
+ };
+
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+
+
+ MenuButton.prototype.blur = function blur() {
+ this.menuButton_.blur();
+ };
+
+ /**
+ * This gets called when a `MenuButton` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ MenuButton.prototype.handleFocus = function handleFocus() {
+ on(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when a `MenuButton` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ MenuButton.prototype.handleBlur = function handleBlur() {
+ off(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyPress} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ // Up (38) key or Down (40) key press the 'button'
+ } else if (event.which === 38 || event.which === 40) {
+ if (!this.buttonPressed_) {
+ this.pressButton();
+ event.preventDefault();
+ }
+ }
+ };
+
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ }
+ };
+
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+
+
+ MenuButton.prototype.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+ // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ };
+
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+
+
+ MenuButton.prototype.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ };
+
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.disable = function disable() {
+ this.unpressButton();
+
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+
+ this.menuButton_.disable();
+ };
+
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+}(Component);
+
+Component.registerComponent('MenuButton', MenuButton);
+
+/**
+ * @file track-button.js
+ */
+
+/**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+var TrackButton = function (_MenuButton) {
+ inherits(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ classCallCheck(this, TrackButton);
+
+ var tracks = options.tracks;
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return possibleConstructorReturn(_this);
+ }
+
+ var updateHandler = bind(_this, _this.update);
+
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+ return _this;
+ }
+
+ return TrackButton;
+}(MenuButton);
+
+Component.registerComponent('TrackButton', TrackButton);
+
+/**
+ * @file menu-item.js
+ */
+
+/**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+var MenuItem = function (_ClickableComponent) {
+ inherits(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ classCallCheck(this, MenuItem);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+ return _this;
+ }
+
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: '<span class="vjs-menu-item-text">' + this.localize(this.options_.label) + '</span>',
+ tabIndex: -1
+ }, props), attrs);
+ };
+
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuItem.prototype.handleClick = function handleClick(event) {
+ this.selected(true);
+ };
+
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+
+
+ MenuItem.prototype.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true');
+ // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false');
+ // Indicate un-selected state to screen reader
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+}(ClickableComponent);
+
+Component.registerComponent('MenuItem', MenuItem);
+
+/**
+ * @file text-track-menu-item.js
+ */
+
+/**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+var TextTrackMenuItem = function (_MenuItem) {
+ inherits(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ classCallCheck(this, TextTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.textTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_this, args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ });
+
+ // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+ if (tracks.onchange === undefined) {
+ var event = void 0;
+
+ _this.on(['tap', 'click'], function () {
+ if (_typeof(window$1.Event) !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window$1.Event('change');
+ } catch (err) {
+ // continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ }
+
+ // set the default state based on current tracks
+ _this.handleTracksChange();
+ return _this;
+ }
+
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ TextTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var kind = this.track.kind;
+ var kinds = this.track.kinds;
+ var tracks = this.player_.textTracks();
+
+ if (!kinds) {
+ kinds = [kind];
+ }
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ if (track === this.track && kinds.indexOf(track.kind) > -1) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ }
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ };
+
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing';
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage;
+
+ // Don't replace the kind of track across the same language
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ TextTrackMenuItem.prototype.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+/**
+ * @file off-text-track-menu-item.js
+ */
+
+/**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var OffTextTrackMenuItem = function (_TextTrackMenuItem) {
+ inherits(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ classCallCheck(this, OffTextTrackMenuItem);
+
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ kind: options.kind,
+ kinds: options.kinds,
+ default: false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ }
+
+ // MenuItem is selectable
+ options.selectable = true;
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ options.multiSelectable = false;
+
+ return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ }
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+/**
+ * @file text-track-button.js
+ */
+
+/**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+var TextTrackButton = function (_TrackButton) {
+ inherits(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, TextTrackButton);
+
+ options.tracks = player.textTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ TextTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;
+
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label = void 0;
+
+ if (this.label_) {
+ label = this.label_ + ' off';
+ }
+ // Add an OFF menu item to turn all tracks off
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+
+ this.hideThreshold_ += 1;
+
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // only add tracks that are of an appropriate kind and have a label
+ if (this.kinds_.indexOf(track.kind) > -1) {
+
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+
+ item.addClass('vjs-' + track.kind + '-menu-item');
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+}(TrackButton);
+
+Component.registerComponent('TextTrackButton', TextTrackButton);
+
+/**
+ * @file chapters-track-menu-item.js
+ */
+
+/**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+var ChaptersTrackMenuItem = function (_MenuItem) {
+ inherits(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ classCallCheck(this, ChaptersTrackMenuItem);
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime();
+
+ // Modify options for parent MenuItem class's init.
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ };
+
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+
+
+ ChaptersTrackMenuItem.prototype.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime();
+
+ // vjs.log(currentTime, cue.startTime);
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+/**
+ * @file chapters-button.js
+ */
+
+/**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+var ChaptersButton = function (_TextTrackButton) {
+ inherits(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ classCallCheck(this, ChaptersButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+
+
+ ChaptersButton.prototype.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+ _TextTrackButton.prototype.update.call(this);
+ };
+
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+
+
+ ChaptersButton.prototype.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ }
+
+ // here this.track_ refers to the old track instance
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track;
+
+ // here this.track_ refers to the new track instance
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ };
+
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+
+
+ ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ };
+
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+
+
+ ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+ return this.localize(toTitleCase(this.kind_));
+ };
+
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+
+
+ ChaptersButton.prototype.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ };
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+
+
+ ChaptersButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });
+
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ChaptersButton.prototype.kind_ = 'chapters';
+
+/**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ChaptersButton.prototype.controlText_ = 'Chapters';
+
+Component.registerComponent('ChaptersButton', ChaptersButton);
+
+/**
+ * @file descriptions-button.js
+ */
+
+/**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+var DescriptionsButton = function (_TextTrackButton) {
+ inherits(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ classCallCheck(this, DescriptionsButton);
+
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+ var tracks = player.textTracks();
+ var changeHandler = bind(_this, _this.handleTracksChange);
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false;
+
+ // Check whether a track of a different kind is showing
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ }
+
+ // If another track is showing, disable this menu button
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DescriptionsButton.prototype.kind_ = 'descriptions';
+
+/**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+/**
+ * @file subtitles-button.js
+ */
+
+/**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+var SubtitlesButton = function (_TextTrackButton) {
+ inherits(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ classCallCheck(this, SubtitlesButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+SubtitlesButton.prototype.kind_ = 'subtitles';
+
+/**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+SubtitlesButton.prototype.controlText_ = 'Subtitles';
+
+Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+/**
+ * @file caption-settings-menu-item.js
+ */
+
+/**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var CaptionSettingsMenuItem = function (_TextTrackMenuItem) {
+ inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ classCallCheck(this, CaptionSettingsMenuItem);
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ default: false,
+ mode: 'disabled'
+ };
+
+ // CaptionSettingsMenuItem has no concept of 'selected'
+ options.selectable = false;
+
+ options.name = 'CaptionSettingsMenuItem';
+
+ var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+
+ _this.addClass('vjs-texttrack-settings');
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+ return _this;
+ }
+
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+/**
+ * @file captions-button.js
+ */
+
+/**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+var CaptionsButton = function (_TextTrackButton) {
+ inherits(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ classCallCheck(this, CaptionsButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ CaptionsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+CaptionsButton.prototype.kind_ = 'captions';
+
+/**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+CaptionsButton.prototype.controlText_ = 'Captions';
+
+Component.registerComponent('CaptionsButton', CaptionsButton);
+
+/**
+ * @file subs-caps-menu-item.js
+ */
+
+/**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var SubsCapsMenuItem = function (_TextTrackMenuItem) {
+ inherits(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ classCallCheck(this, SubsCapsMenuItem);
+ return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));
+ }
+
+ SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Captions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+/**
+ * @file sub-caps-button.js
+ */
+/**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+var SubsCapsButton = function (_TextTrackButton) {
+ inherits(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, SubsCapsButton);
+
+ // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));
+
+ _this.label_ = 'subtitles';
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ SubsCapsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+}(TextTrackButton);
+
+/**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+/**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+SubsCapsButton.prototype.controlText_ = 'Subtitles';
+
+Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+/**
+ * @file audio-track-menu-item.js
+ */
+
+/**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+var AudioTrackMenuItem = function (_MenuItem) {
+ inherits(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ classCallCheck(this, AudioTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.audioTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+
+ _this.addClass('vjs-' + track.kind + '-menu-item');
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Descriptions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.enabled = track === this.track;
+ }
+ };
+
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+
+
+ AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+/**
+ * @file audio-track-button.js
+ */
+
+/**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+var AudioTrackButton = function (_TrackButton) {
+ inherits(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, AudioTrackButton);
+
+ options.tracks = player.audioTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+
+
+ AudioTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+}(TrackButton);
+
+/**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+AudioTrackButton.prototype.controlText_ = 'Audio Track';
+Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+/**
+ * @file playback-rate-menu-item.js
+ */
+
+/**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+var PlaybackRateMenuItem = function (_MenuItem) {
+ inherits(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ classCallCheck(this, PlaybackRateMenuItem);
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10);
+
+ // Modify options for parent MenuItem class's init.
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+ return _this;
+ }
+
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player().playbackRate(this.rate);
+ };
+
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuItem.prototype.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+}(MenuItem);
+
+/**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuItem.prototype.contentElType = 'button';
+
+Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+/**
+ * @file playback-rate-menu-button.js
+ */
+
+/**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+var PlaybackRateMenuButton = function (_MenuButton) {
+ inherits(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ classCallCheck(this, PlaybackRateMenuButton);
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ _this.updateVisibility();
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+ _this.on(player, 'ratechange', _this.updateLabel);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+
+ el.appendChild(this.labelEl_);
+
+ return el;
+ };
+
+ PlaybackRateMenuButton.prototype.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+
+
+ PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Updates ARIA accessibility attributes
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ };
+
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates();
+
+ // this will select first one if the last one currently selected
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+ this.player().playbackRate(newRate);
+ };
+
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ };
+
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ };
+
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ };
+
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+}(MenuButton);
+
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+/**
+ * @file spacer.js
+ */
+
+/**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+var Spacer = function (_Component) {
+ inherits(Spacer, _Component);
+
+ function Spacer() {
+ classCallCheck(this, Spacer);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ Spacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ Spacer.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+}(Component);
+
+Component.registerComponent('Spacer', Spacer);
+
+/**
+ * @file custom-control-spacer.js
+ */
+
+/**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+var CustomControlSpacer = function (_Spacer) {
+ inherits(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ classCallCheck(this, CustomControlSpacer);
+ return possibleConstructorReturn(this, _Spacer.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ CustomControlSpacer.prototype.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ });
+
+ // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+ el.innerHTML = '\xA0';
+ return el;
+ };
+
+ return CustomControlSpacer;
+}(Spacer);
+
+Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+/**
+ * @file control-bar.js
+ */
+
+/**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+var ControlBar = function (_Component) {
+ inherits(ControlBar, _Component);
+
+ function ControlBar() {
+ classCallCheck(this, ControlBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ControlBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+}(Component);
+
+/**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+};
+
+Component.registerComponent('ControlBar', ControlBar);
+
+/**
+ * @file error-display.js
+ */
+
+/**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+var ErrorDisplay = function (_ModalDialog) {
+ inherits(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ classCallCheck(this, ErrorDisplay);
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.on(player, 'error', _this.open);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+
+
+ ErrorDisplay.prototype.content = function content() {
+ var error = this.player().error();
+
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+}(ModalDialog);
+
+/**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+});
+
+Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+/**
+ * @file text-track-settings.js
+ */
+
+var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+
+var COLOR_BLACK = ['#000', 'Black'];
+var COLOR_BLUE = ['#00F', 'Blue'];
+var COLOR_CYAN = ['#0FF', 'Cyan'];
+var COLOR_GREEN = ['#0F0', 'Green'];
+var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+var COLOR_RED = ['#F00', 'Red'];
+var COLOR_WHITE = ['#FFF', 'White'];
+var COLOR_YELLOW = ['#FF0', 'Yellow'];
+
+var OPACITY_OPAQUE = ['1', 'Opaque'];
+var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+var OPACITY_TRANS = ['0', 'Transparent'];
+
+// Configuration for the various <select> elements in the DOM of this component.
+//
+// Possible keys include:
+//
+// `default`:
+// The default option index. Only needs to be provided if not zero.
+// `parser`:
+// A function which is used to parse the value from the selected option in
+// a customized way.
+// `selector`:
+// The selector used to find the associated <select> element.
+var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ default: 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+};
+
+selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+/**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+}
+
+/**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+
+ return parseOptionValue(value, parser);
+}
+
+/**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+}
+
+/**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+var TextTrackSettings = function (_ModalDialog) {
+ inherits(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ classCallCheck(this, TextTrackSettings);
+
+ options.temporary = false;
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.updateDisplay = bind(_this, _this.updateDisplay);
+
+ // fill the modal and pretend we have opened it
+ _this.fill();
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults();
+
+ // Grab `persistTextTrackSettings` from the player options if not passed in child options
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+ return _this;
+ }
+
+ TextTrackSettings.prototype.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {
+ var _this2 = this;
+
+ var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+ var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+
+ return ['<' + type + ' id="' + id + '" class="' + (type === 'label' ? 'vjs-label' : '') + '">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby="' + selectLabelledbyIds + '">'].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+
+ return ['<option id="' + optionId + '" value="' + o[0] + '" ', 'aria-labelledby="' + selectLabelledbyIds + ' ' + optionId + '">', _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ };
+
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {
+ var legendId = 'captions-text-legend-' + this.id_;
+
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {
+ var legendId = 'captions-background-' + this.id_;
+
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {
+ var legendId = 'captions-window-' + this.id_;
+
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ };
+
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ };
+
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ['<button class="vjs-default-button" title="' + defaultsDescription + '">', this.localize('Reset'), '<span class="vjs-control-text"> ' + defaultsDescription + '</span>', '</button>', '<button class="vjs-done-button">' + this.localize('Done') + '</button>'].join('')
+ });
+ };
+
+ TextTrackSettings.prototype.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ TextTrackSettings.prototype.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ TextTrackSettings.prototype.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ };
+
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ };
+
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ };
+
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+
+
+ TextTrackSettings.prototype.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config.default : 0;
+
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ };
+
+ /**
+ * Restore texttrack settings from localStorage
+ */
+
+
+ TextTrackSettings.prototype.restoreSettings = function restoreSettings() {
+ var values = void 0;
+
+ try {
+ values = JSON.parse(window$1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log$1.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ };
+
+ /**
+ * Save text track settings to localStorage
+ */
+
+
+ TextTrackSettings.prototype.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window$1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window$1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log$1.warn(err);
+ }
+ };
+
+ /**
+ * Update display of text track settings
+ */
+
+
+ TextTrackSettings.prototype.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ this.off(document, 'keydown', this.handleKeyDown);
+
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+}(ModalDialog);
+
+Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+/**
+ * @file resize-manager.js
+ */
+
+/**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+var ResizeManager = function (_Component) {
+ inherits(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ classCallCheck(this, ResizeManager);
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window$1.ResizeObserver;
+
+ // if `null` was passed, we want to disable the ResizeObserver
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ }
+
+ // Only create an element when ResizeObserver isn't available
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));
+
+ _this.ResizeObserver = options.ResizeObserver || window$1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _this);
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+ return _this;
+ }
+
+ ResizeManager.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager'
+ });
+ };
+
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+
+
+ ResizeManager.prototype.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ ResizeManager.prototype.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.el_ && this.el_.contentWindow) {
+ off(this.el_.contentWindow, 'resize', this.debouncedHandler_);
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+ };
+
+ return ResizeManager;
+}(Component);
+
+Component.registerComponent('ResizeManager', ResizeManager);
+
+/**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el();
+
+ // if `el.src` is set, that source will be loaded.
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = '';
+
+ // if there are no sources, do not fire sourceset
+ if (!sources.length) {
+ return false;
+ }
+
+ // only count valid/non-duplicate source elements
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ }
+
+ // there were no valid sources
+ if (!srcUrls.length) {
+ return false;
+ }
+
+ // there is only one valid source element url
+ // use that
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+};
+
+/**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document.createElement(this.nodeName.toLowerCase());
+
+ // set innerHTML to the value provided
+ dummy.innerHTML = v;
+
+ // make a document fragment to hold the nodes from dummy
+ var docFrag = document.createDocumentFragment();
+
+ // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ }
+
+ // remove content
+ this.innerText = '';
+
+ // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+ window$1.Element.prototype.appendChild.call(this, docFrag);
+
+ // then return the result that innerHTML's setter would
+ return this.innerHTML;
+ }
+});
+
+/**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+
+ return descriptor;
+};
+
+var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window$1.HTMLMediaElement.prototype, window$1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+};
+
+/**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el();
+
+ // make sure firstSourceWatch isn't setup twice.
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+
+ sourcesetLoad(tech);
+
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ }
+
+ // store the old function
+ old[k] = el[k];
+
+ // call the old function with a sourceset if a source
+ // was loaded
+ el[k] = appendWrapper(old[k]);
+ });
+
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ };
+
+ // on the first sourceset, we need to revert our changes
+ tech.one('sourceset', el.resetSourceWatch_);
+};
+
+/**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window$1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window$1.Element.prototype.setAttribute.call(this, 'src', v);
+
+ return v;
+ }
+});
+
+var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window$1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+};
+
+/**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el();
+
+ // make sure sourceset isn't setup twice.
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v);
+
+ // we use the getter here to get the actual value set on src
+ tech.triggerSourceset(el.src);
+
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el);
+
+ // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+};
+
+var _templateObject$1 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.']);
+
+/**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+var Html5 = function (_Tech) {
+ inherits(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ classCallCheck(this, Html5);
+
+ var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));
+
+ var source = options.source;
+ var crossoriginTracks = false;
+
+ // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ }
+
+ // setup sourceset after late sourceset/init
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+ _this.remoteTextTracks().addTrack(node.track);
+ _this.textTracks().addTrack(node.track);
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log$1.warn(tsml(_templateObject$1));
+ }
+
+ // prevent iOS Safari from disabling metadata text tracks during native playback
+ _this.restoreMetadataTracksInIOSNativePlayer_();
+
+ // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ }
+
+ // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+ return _this;
+ }
+
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ Html5.prototype.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null;
+
+ // tech will handle clearing of the emulated track list
+ _Tech.prototype.dispose.call(this);
+ };
+
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+
+
+ Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ };
+
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState = void 0;
+
+ // captures a snapshot of every metadata track's current state
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ };
+
+ // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ }
+ // we only want this handler to be executed on the first 'change' event
+ textTracks.removeEventListener('change', restoreTrackMode);
+ };
+
+ // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ });
+
+ // start updating the snapshot again after leaving fullscreen
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ };
+
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {String} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {Boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+
+
+ Html5.prototype.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this['featuresNative' + type + 'Tracks']) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + 'TracksListeners_']) {
+ Object.keys(this[lowerCaseType + 'TracksListeners_']).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + 'Tracks'];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + 'TracksListeners_'][eventName]);
+ });
+ }
+
+ this['featuresNative' + type + 'Tracks'] = !override;
+ this[lowerCaseType + 'TracksListeners_'] = null;
+
+ this.proxyNativeTracksForType_(lowerCaseType);
+ };
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ };
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ };
+
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+
+ elTracks.addEventListener(eventName, listener);
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ });
+
+ // Remove (native) tracks that are not used anymore
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ };
+
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ };
+
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Html5.prototype.createEl = function createEl$$1() {
+ var el = this.options_.tag;
+
+ // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document.createElement('video');
+
+ // determine if native controls should be used
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ class: 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ }
+
+ // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ };
+
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+
+
+ Html5.prototype.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+
+ return;
+ }
+
+ // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+ var eventsToTrigger = ['loadstart'];
+
+ // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+ eventsToTrigger.push('loadedmetadata');
+
+ // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ }
+
+ // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ }
+
+ // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ }
+
+ // We still need to give the player time to add event listeners
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ };
+
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+
+
+ Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log$1(e, 'Video is not ready. (Video.js)');
+ // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ };
+
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+
+
+ Html5.prototype.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+ return this.el_.duration || NaN;
+ };
+
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+
+
+ Html5.prototype.width = function width() {
+ return this.el_.offsetWidth;
+ };
+
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+
+
+ Html5.prototype.height = function height() {
+ return this.el_.offsetHeight;
+ };
+
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+
+
+ Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', { isFullscreen: false });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+
+ this.trigger('fullscreenchange', { isFullscreen: true });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ };
+
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+
+
+ Html5.prototype.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window$1.navigator && window$1.navigator.userAgent || '';
+
+ // Seems to be broken in Chromium/Chrome && Safari in Leopard
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+
+
+ Html5.prototype.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play();
+
+ // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ };
+
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+
+
+ Html5.prototype.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ };
+
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ Html5.prototype.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ }
+
+ // Setting src through `src` instead of `setSrc` will be deprecated
+ this.setSrc(_src);
+ };
+
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+
+
+ Html5.prototype.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ };
+
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+
+
+ Html5.prototype.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+ return this.el_.currentSrc;
+ };
+
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+
+
+ Html5.prototype.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ };
+
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+ var htmlTrackElement = document.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+ if (options.default) {
+ htmlTrackElement.default = options.default;
+ }
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+
+
+ Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+
+
+ Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window$1.performance && typeof window$1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window$1.performance.now();
+ } else if (window$1.performance && window$1.performance.timing && typeof window$1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window$1.Date.now() - window$1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+}(Tech);
+
+/* HTML5 Support Testing ---------------------------------------------------- */
+
+if (isReal()) {
+
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document.createElement('video');
+ var track = document.createElement('track');
+
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+}
+
+/**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+};
+
+/**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+};
+
+/**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+};
+
+/**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+};
+
+/**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted;
+
+ // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+ Html5.TEST_VID.muted = !muted;
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+};
+
+/**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ }
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+};
+
+/**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document.createElement('video'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document.createElement('audio'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document.createElement('video'), 'innerHTML', { get: noop, set: noop });
+ Object.defineProperty(document.createElement('audio'), 'innerHTML', { get: noop, set: noop });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+};
+
+/**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+};
+
+/**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+};
+
+/**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+};
+
+/**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+/**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+/**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+
+/**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+
+/**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+// TODO: Previous comment: No longer appears to be used. Can probably be removed.
+// Is this true?
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.featuresFullscreenResize = true;
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.featuresProgressEvents = true;
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+Html5.prototype.featuresTimeupdateEvents = true;
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();
+
+// HTML5 Feature detection and Device Fixes --------------------------------- //
+var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+Html5.patchCanPlayType = function () {
+
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+ return canPlayType.call(this, type);
+ };
+ }
+};
+
+Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+};
+
+// by default, patch the media element
+Html5.patchCanPlayType();
+
+Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ }
+
+ // remove any child track or source nodes to prevent their loading
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ }
+
+ // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+ el.removeAttribute('src');
+
+ // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // not supported
+ }
+ })();
+ }
+};
+
+Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ }
+
+ // remove any src reference.
+ // not setting `src=''` because that throws an error
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // satisfy linter
+ }
+ })();
+ }
+};
+
+/* Native HTML5 element property wrapping ----------------------------------- */
+// Wrap native boolean attributes with getters that check both property and attribute
+// The list is as followed:
+// muted, defaultMuted, autoplay, controls, loop, playsinline
+[
+/**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+'muted',
+
+/**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+'defaultMuted',
+
+/**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+'autoplay',
+
+/**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+'controls',
+
+/**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+'loop',
+
+/**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+});
+
+// Wrap native boolean attributes with setters that set both property and attribute
+// The list is as followed:
+// setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+// setControls is special-cased above
+[
+/**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+'muted',
+
+/**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+'defaultMuted',
+
+/**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+'autoplay',
+
+/**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+'loop',
+
+/**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+});
+
+// Wrap native properties with a getter
+// The list is as followed
+// paused, currentTime, buffered, volume, poster, preload, error, seeking
+// seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+// readyState, videoWidth, videoHeight
+[
+/**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+'paused',
+
+/**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+'currentTime',
+
+/**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+'buffered',
+
+/**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+'volume',
+
+/**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+'poster',
+
+/**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+'preload',
+
+/**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+'error',
+
+/**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+'seeking',
+
+/**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+'seekable',
+
+/**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+'ended',
+
+/**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'playbackRate',
+
+/**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'defaultPlaybackRate',
+
+/**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+'played',
+
+/**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+'networkState',
+
+/**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+'readyState',
+
+/**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+'videoWidth',
+
+/**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+});
+
+// Wrap native properties with a setter in this format:
+// set + toTitleCase(name)
+// The list is as follows:
+// setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+[
+/**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+'volume',
+
+/**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+'src',
+
+/**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+'poster',
+
+/**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+'preload',
+
+/**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'playbackRate',
+
+/**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+});
+
+// wrap native functions with a function
+// The list is as follows:
+// pause, load, play
+[
+/**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+'pause',
+
+/**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+'load',
+
+/**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+});
+
+Tech.withSourceHandlers(Html5);
+
+/**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+Html5.nativeSourceHandler = {};
+
+/**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+};
+
+/**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type);
+
+ // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+
+ return Html5.nativeSourceHandler.canPlayType('video/' + ext);
+ }
+
+ return '';
+};
+
+/**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+};
+
+/**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+Html5.nativeSourceHandler.dispose = function () {};
+
+// Register the native source handler
+Html5.registerSourceHandler(Html5.nativeSourceHandler);
+
+Tech.registerTech('Html5', Html5);
+
+var _templateObject$2 = taggedTemplateLiteralLoose(['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n '], ['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n ']);
+
+// The following tech events are simply re-triggered
+// on the player when they happen
+var TECH_EVENTS_RETRIGGER = [
+/**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+'progress',
+
+/**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+'abort',
+
+/**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+'suspend',
+
+/**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+'emptied',
+/**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+'stalled',
+
+/**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+'loadedmetadata',
+
+/**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+/**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+'loadeddata',
+
+/**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+/**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+'timeupdate',
+
+/**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+/**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+'resize',
+
+/**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+/**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+'volumechange',
+
+/**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+/**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+'texttrackchange'];
+
+// events to queue when playback rate is zero
+// this is a hash for the sole purpose of mapping non-camel-cased event names
+// to camel-cased function names
+var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+};
+
+/**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+var Player = function (_Component) {
+ inherits(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ classCallCheck(this, Player);
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || 'vjs_video_' + newGUID();
+
+ // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+ options = assign(Player.getTagSettings(tag), options);
+
+ // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+ options.initChildren = false;
+
+ // Same with creating the element
+ options.createEl = false;
+
+ // don't auto mixin the evented mixin
+ options.evented = false;
+
+ // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+ options.reportTouchActivity = false;
+
+ // If language is not set, get the closest lang attribute
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+ element = element.parentNode;
+ }
+ }
+ }
+
+ // Run base component initializing with new options
+
+ // Tracks when a tech changes the poster
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.isPosterFromTech_ = false;
+
+ // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+ _this.queuedCallbacks_ = [];
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ _this.isReady_ = false;
+
+ // Init state hasStarted_
+ _this.hasStarted_ = false;
+
+ // Init state userActive_
+ _this.userActive_ = false;
+
+ // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ }
+
+ // Store the original tag used to set options
+ _this.tag = tag;
+
+ // Store the tag attributes used to restore html5 element
+ _this.tagAttributes = tag && getAttributes(tag);
+
+ // Update current language
+ _this.language(_this.options_.language);
+
+ // Update Supported Languages
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+
+ Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {
+ languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ // Cache for video property values.
+ _this.cache_ = {};
+
+ // Set poster
+ _this.poster_ = options.poster || '';
+
+ // Set controls
+ _this.controls_ = !!options.controls;
+
+ // Set default values for lastVolume
+ _this.cache_.lastVolume = 1;
+
+ // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+ tag.controls = false;
+ tag.removeAttribute('controls');
+
+ // the attribute overrides the option
+ if (tag.hasAttribute('autoplay')) {
+ _this.options_.autoplay = true;
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ }
+
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+ _this.scrubbing_ = false;
+
+ _this.el_ = _this.createEl();
+
+ // Set default value for lastPlaybackRate
+ _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();
+
+ // Make this an evented object and use `el_` as its event bus.
+ evented(_this, { eventBusKey: 'el_' });
+
+ // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+ var playerOptionsCopy = mergeOptions(_this.options_);
+
+ // Load plugins
+ if (options.plugins) {
+ var plugins = options.plugins;
+
+ Object.keys(plugins).forEach(function (name$$1) {
+ if (typeof this[name$$1] === 'function') {
+ this[name$$1](plugins[name$$1]);
+ } else {
+ throw new Error('plugin "' + name$$1 + '" does not exist');
+ }
+ }, _this);
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+
+ _this.middleware_ = [];
+
+ _this.initChildren();
+
+ // Set isAudio based on whether or not an audio tag was used
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+ // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ }
+
+ // Set ARIA label and region role depending on player type
+ _this.el_.setAttribute('role', 'region');
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ }
+
+ // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // if (browser.TOUCH_ENABLED) {
+ // this.addClass('vjs-touch-enabled');
+ // }
+
+ // iOS Safari has broken hover handling
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ }
+
+ // Make player easily findable by ID
+ Player.players[_this.id_] = _this;
+
+ // Add a major version class to aid css in plugins
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass('vjs-v' + majorVersion);
+
+ // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+ _this.userActive(true);
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+ _this.on('fullscreenchange', _this.handleFullscreenChange_);
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.changingSrc_ = false;
+ _this.playWaitingForReady_ = false;
+ _this.playOnLoadstart_ = null;
+ return _this;
+ }
+
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ Player.prototype.dispose = function dispose() {
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose');
+ // prevent dispose from being called twice
+ this.off('dispose');
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ }
+
+ // Kill reference to this player
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this);
+
+ // the actual .el_ is removed here
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ Player.prototype.createEl = function createEl$$1() {
+ var tag = this.tag;
+ var el = void 0;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ }
+
+ // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document.createElement('video');
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+
+ playerElIngest = this.playerElIngest_ = el;
+ // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+ Object.keys(el).forEach(function (k) {
+ tag[k] = el[k];
+ });
+ }
+
+ // set tabindex to -1 to remove the video element from the focus order
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1';
+
+ // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 if JAWS is not being used
+ if (IE_VERSION) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ }
+
+ // Remove width/height attrs from tag so CSS can make it 100% width/height
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ });
+
+ // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech';
+
+ // Make player findable on elements
+ tag.player = el.player = this;
+ // Default state of video is paused
+ this.addClass('vjs-paused');
+
+ // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+ if (window$1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ // Pass in the width/height/aspectRatio options which will update the style el
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio);
+
+ // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ }
+
+ // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+ tag.initNetworkState_ = tag.networkState;
+
+ // Wrap video tag in div (el/box) container
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ }
+
+ // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+ prependTo(tag, el);
+ this.children_.unshift(tag);
+
+ // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+ this.el_.setAttribute('lang', this.language_);
+
+ this.el_ = el;
+
+ return el;
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+
+
+ Player.prototype.width = function width(value) {
+ return this.dimension('width', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+
+
+ Player.prototype.height = function height(value) {
+ return this.dimension('height', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+
+
+ Player.prototype.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log$1.error('Improper value "' + value + '" supplied for for ' + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ };
+
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will toggle the fluid class.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+
+
+ Player.prototype.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+
+
+ Player.prototype.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ }
+
+ // Check for width:height format
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+ this.aspectRatio_ = ratio;
+
+ // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+ this.fluid(true);
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+
+
+ Player.prototype.updateStyleEl_ = function updateStyleEl_() {
+ if (window$1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width = void 0;
+ var height = void 0;
+ var aspectRatio = void 0;
+ var idClass = void 0;
+
+ // The aspect ratio is either used directly or to calculate width and height.
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ }
+
+ // Get the ratio as a decimal we can use to calculate dimensions
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ }
+
+ // Ensure the CSS class is valid by starting with an alpha character
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ }
+
+ // Ensure the right class is still on the player for the style element
+ this.addClass(idClass);
+
+ setTextContent(this.styleEl_, '\n .' + idClass + ' {\n width: ' + width + 'px;\n height: ' + height + 'px;\n }\n\n .' + idClass + '.vjs-fluid {\n padding-top: ' + ratioMultiplier * 100 + '%;\n }\n ');
+ };
+
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+
+
+ Player.prototype.loadTech_ = function loadTech_(techName, source) {
+ var _this2 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+ // get rid of the HTML5 video tag as soon as we are using another tech
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName;
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ this.isReady_ = false;
+
+ // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();
+
+ // Grab tech-specific options from player options and add source and parent element to use.
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + '_' + camelTechName + '_api',
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset
+ };
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ techOptions[props.getterName] = _this2[props.privateName];
+ });
+
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ }
+
+ // Initialize tech instance
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error('No Tech named \'' + titleTechName + '\' exists! \'' + titleTechName + '\' should be registered using videojs.registerTech()\'');
+ }
+
+ this.tech_ = new TechClass(techOptions);
+
+ // player.triggerReady is always async, so don't need this to be async
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+ // Listen to all HTML5-defined events and trigger them on the player
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);
+ });
+
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this2.on(_this2.tech_, event, function (eventObj) {
+ if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {
+ _this2.queuedCallbacks_.push({
+ callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),
+ event: eventObj
+ });
+ return;
+ }
+ _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);
+ });
+ });
+
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+
+ // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ }
+
+ // Get rid of the original video tag reference after the first tech is loaded
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ };
+
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+
+
+ Player.prototype.unloadTech_ = function unloadTech_() {
+ var _this3 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ _this3[props.privateName] = _this3[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+
+ this.isReady_ = false;
+
+ this.tech_.dispose();
+
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ };
+
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+
+
+ Player.prototype.tech = function tech(safety) {
+ if (safety === undefined) {
+ log$1.warn(tsml(_templateObject$2));
+ }
+
+ return this.tech_;
+ };
+
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+
+
+ Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_();
+
+ // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+ this.on(this.tech_, 'mousedown', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+
+ // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);
+
+ // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ };
+
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+
+
+ Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mousedown', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ };
+
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+
+
+ Player.prototype.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady();
+
+ // Keep the same volume as before
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ }
+
+ // Look if the tech found a higher resolution poster while loading
+ this.handleTechPosterChange_();
+
+ // Update the duration if available
+ this.handleTechDurationChange_();
+ };
+
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking');
+
+ // reset the error state
+ this.error(null);
+
+ // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ }
+
+ // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+ this.manualAutoplay_(this.autoplay());
+ };
+
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+
+
+ Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this4 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this4.muted();
+
+ _this4.muted(true);
+
+ var playPromise = _this4.play();
+
+ if (!playPromise || !playPromise.then || !playPromise.catch) {
+ return;
+ }
+
+ return playPromise.catch(function (e) {
+ // restore old value of muted on failure
+ _this4.muted(previouslyMuted);
+ });
+ };
+
+ var promise = void 0;
+
+ if (type === 'any') {
+ promise = this.play();
+
+ if (promise && promise.then && promise.catch) {
+ promise.catch(function () {
+ return muted();
+ });
+ }
+ } else if (type === 'muted') {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!promise || !promise.then || !promise.catch) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this4.trigger({ type: 'autoplay-success', autoplay: type });
+ }).catch(function (e) {
+ _this4.trigger({ type: 'autoplay-failure', autoplay: type });
+ });
+ };
+
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+
+
+ Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {
+ var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ }
+
+ // if we are a blob url, don't update the source cache
+ // blob urls can arise when playback is done via Media Source Extension (MSE)
+ // such as m3u8 sources with @videojs/http-streaming (VHS)
+ if (/^blob:/.test(src)) {
+ return;
+ }
+
+ // make sure all the caches are set to default values
+ // to prevent null checking
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || [];
+
+ // try to get the type of the src that was passed in
+ if (src && !type) {
+ type = findMimetype(this, src);
+ }
+
+ // update `currentSource` cache always
+ this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });
+
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ }
+
+ // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources;
+ // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ }
+
+ // update the tech `src` cache
+ this.cache_.src = src;
+ };
+
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+
+
+ Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this5 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ // update the source to the intial source right away
+ // in some cases this will be empty string
+ this.updateSourceCaches_(event.src);
+
+ // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+ // as this function will be called again.
+ if (!event.src) {
+ var updateCache = function updateCache(e) {
+ if (e.type !== 'sourceset') {
+ _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));
+ }
+
+ _this5.tech_.off(['sourceset', 'loadstart'], updateCache);
+ };
+
+ this.tech_.one(['sourceset', 'loadstart'], updateCache);
+ }
+ }
+
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ };
+
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+
+
+ Player.prototype.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ };
+
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+
+ // hide the poster when the user hits play
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+ this.trigger('play');
+ };
+
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+
+
+ Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+ this.trigger('ratechange');
+ };
+
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+
+
+ Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this6 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+ this.trigger('waiting');
+ this.one('timeupdate', function () {
+ return _this6.removeClass('vjs-waiting');
+ });
+ };
+
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplay');
+ };
+
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplaythrough');
+ };
+
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+ this.trigger('playing');
+ };
+
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeking');
+ };
+
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeked');
+ };
+
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+
+
+ Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+ this.trigger('firstplay');
+ };
+
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+
+
+ Player.prototype.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+ this.trigger('pause');
+ };
+
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+
+
+ Player.prototype.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ended');
+ };
+
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ };
+
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mousedown
+ * @private
+ */
+
+
+ Player.prototype.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ };
+
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+
+
+ Player.prototype.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ }
+
+ // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ };
+
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+
+
+ Player.prototype.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ };
+
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ };
+
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ };
+
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ };
+
+ /**
+ * Fired when the player switches in or out of fullscreen mode
+ *
+ * @private
+ * @listens Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ };
+
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+
+
+ Player.prototype.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ };
+
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ };
+
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+
+
+ Player.prototype.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+
+ this.error(error);
+ };
+
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+
+
+ Player.prototype.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+ this.trigger('textdata', data);
+ };
+
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+
+
+ Player.prototype.getCache = function getCache() {
+ return this.cache_;
+ };
+
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+
+
+ Player.prototype.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set$1(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log$1(e);
+ throw e;
+ }
+ }, true);
+ };
+
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+
+
+ Player.prototype.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get$1(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ }
+
+ // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);
+ throw e;
+ }
+
+ // When a method isn't available on the object it throws a TypeError
+ if (e.name === 'TypeError') {
+ log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);
+ this.tech_.isReady_ = false;
+ throw e;
+ }
+
+ // If error unknown, just log and throw
+ log$1(e);
+ throw e;
+ }
+ };
+
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+
+
+ Player.prototype.play = function play() {
+ var _this7 = this;
+
+ var PromiseClass = this.options_.Promise || window$1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this7.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ };
+
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+
+
+ Player.prototype.play_ = function play_() {
+ var _this8 = this;
+
+ var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;
+
+ // If this is called while we have a play queued up on a loadstart, remove
+ // that listener to avoid getting in a potentially bad state.
+ if (this.playOnLoadstart_) {
+ this.off('loadstart', this.playOnLoadstart_);
+ }
+
+ // If the player/tech is not ready, queue up another call to `play()` for
+ // when it is. This will loop back into this method for another attempt at
+ // playback when the tech is ready.
+ if (!this.isReady_) {
+
+ // Bail out if we're already waiting for `ready`!
+ if (this.playWaitingForReady_) {
+ return;
+ }
+
+ this.playWaitingForReady_ = true;
+ this.ready(function () {
+ _this8.playWaitingForReady_ = false;
+ callback(_this8.play());
+ });
+
+ // If the player/tech is ready and we have a source, we can attempt playback.
+ } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {
+ callback(this.techGet_('play'));
+ return;
+
+ // If the tech is ready, but we do not have a source, we'll need to wait
+ // for both the `ready` and a `loadstart` when the source is finally
+ // resolved by middleware and set on the player.
+ //
+ // This can happen if `play()` is called while changing sources or before
+ // one has been set on the player.
+ } else {
+
+ this.playOnLoadstart_ = function () {
+ _this8.playOnLoadstart_ = null;
+ callback(_this8.play());
+ };
+
+ this.one('loadstart', this.playOnLoadstart_);
+ }
+ };
+
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+
+
+ Player.prototype.pause = function pause() {
+ this.techCall_('pause');
+ };
+
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+
+
+ Player.prototype.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ };
+
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+
+
+ Player.prototype.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ };
+
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+
+
+ Player.prototype.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ };
+
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+
+
+ Player.prototype.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ }
+
+ // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ };
+
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+
+
+ Player.prototype.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds);
+
+ // Standardize on Infinity for signaling video is live
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+ } else {
+ this.removeClass('vjs-live');
+ }
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ };
+
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ };
+
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ };
+
+ //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+
+
+ Player.prototype.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ };
+
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+
+
+ Player.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ };
+
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+
+
+ Player.prototype.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ };
+
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+
+
+ Player.prototype.volume = function volume(percentAsDecimal) {
+ var vol = void 0;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ }
+
+ // Default to 1 when returning current volume.
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ };
+
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+
+
+ Player.prototype.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+ return this.techGet_('muted') || false;
+ };
+
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+
+
+ Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+ return this.techGet_('defaultMuted') || false;
+ };
+
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+
+
+ Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+ return this.cache_.lastVolume;
+ };
+
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+
+
+ Player.prototype.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ };
+
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+
+
+ Player.prototype.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ return;
+ }
+ return !!this.isFullscreen_;
+ };
+
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.requestFullscreen = function requestFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(true);
+
+ if (fsApi.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {
+ this.isFullscreen(document[fsApi.fullscreenElement]);
+
+ // If cancelling fullscreen, remove event listener.
+ if (this.isFullscreen() === false) {
+ off(document, fsApi.fullscreenchange, documentFullscreenChange);
+ }
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }));
+
+ this.el_[fsApi.requestFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.exitFullscreen = function exitFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(false);
+
+ // Check for browser element fullscreen support
+ if (fsApi.requestFullscreen) {
+ document[fsApi.exitFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+
+
+ Player.prototype.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true;
+
+ // Storing original doc overflow value to return to when fullscreen is off
+ this.docOrigOverflow = document.documentElement.style.overflow;
+
+ // Add listener for esc key to exit fullscreen
+ on(document, 'keydown', bind(this, this.fullWindowOnEscKey));
+
+ // Hide any scroll bars
+ document.documentElement.style.overflow = 'hidden';
+
+ // Apply fullscreen styles
+ addClass(document.body, 'vjs-full-window');
+
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enterFullWindow');
+ };
+
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+
+
+ Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (event.keyCode === 27) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ };
+
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+
+
+ Player.prototype.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document, 'keydown', this.fullWindowOnEscKey);
+
+ // Unhide scroll bars.
+ document.documentElement.style.overflow = this.docOrigOverflow;
+
+ // Remove fullscreen styles
+ removeClass(document.body, 'vjs-full-window');
+
+ // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('exitFullWindow');
+ };
+
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Player.prototype.canPlayType = function canPlayType(type) {
+ var can = void 0;
+
+ // Loop through each playback technology in the options order
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the current tech is defined before continuing
+ if (!tech) {
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ continue;
+ }
+
+ // Check if the browser supports this technology
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+
+
+ Player.prototype.selectSource = function selectSource(sources) {
+ var _this9 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ return false;
+ });
+
+ // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found = void 0;
+
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+
+ return found;
+ };
+
+ var foundSourceAndTech = void 0;
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {
+ return { source: source, tech: techName };
+ }
+ };
+
+ // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ };
+
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+
+
+ Player.prototype.src = function src(source) {
+ var _this10 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ }
+ // filter out invalid sources and turn our source into
+ // an array of source objects
+ var sources = filterSource(source);
+
+ // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+ return;
+ }
+
+ // intial sources
+ this.changingSrc_ = true;
+
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]);
+
+ // middlewareSource is the source after it has been changed by middleware
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this10.middleware_ = mws;
+
+ // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+ _this10.cache_.sources = sources;
+ _this10.updateSourceCaches_(middlewareSource);
+
+ var err = _this10.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this10.src(sources.slice(1));
+ }
+
+ _this10.changingSrc_ = false;
+
+ // We need to wrap this in a timeout to give folks a chance to add error event handlers
+ _this10.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+
+ // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+ _this10.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this10.tech_);
+ });
+ };
+
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {Boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+
+
+ Player.prototype.src_ = function src_(source) {
+ var _this11 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true;
+ // load this technology with the chosen source
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this11.changingSrc_ = false;
+ });
+ return false;
+ }
+
+ // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+ this.ready(function () {
+
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+
+ return false;
+ };
+
+ /**
+ * Begin loading the src data.
+ */
+
+
+ Player.prototype.load = function load() {
+ this.techCall_('load');
+ };
+
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * and calls `reset` on the tech`.
+ */
+
+
+ Player.prototype.reset = function reset() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ };
+
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+
+
+ Player.prototype.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = [];
+
+ // assume `{}` or `{ src }`
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ };
+
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+
+
+ Player.prototype.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ };
+
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+
+
+ Player.prototype.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ };
+
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+
+
+ Player.prototype.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ };
+
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+
+
+ Player.prototype.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+ return this.techGet_('preload');
+ };
+
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+
+
+ Player.prototype.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay = void 0;
+
+ // if the value is a valid string set it to that
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false;
+
+ // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false;
+
+ // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = techAutoplay || this.options_.autoplay;
+
+ // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ };
+
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+
+
+ Player.prototype.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+ return this.techGet_('playsinline');
+ };
+
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {string}
+ * The current value of loop when getting
+ */
+
+
+ Player.prototype.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+ return this.techGet_('loop');
+ };
+
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+
+
+ Player.prototype.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ }
+
+ // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ }
+
+ // update the internal poster variable
+ this.poster_ = src;
+
+ // update the tech's poster
+ this.techCall_('setPoster', src);
+
+ this.isPosterFromTech_ = false;
+
+ // alert components that the poster has been set
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('posterchange');
+ };
+
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true;
+
+ // Let components know the poster has changed
+ this.trigger('posterchange');
+ }
+ }
+ };
+
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+
+
+ Player.prototype.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsenabled');
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsdisabled');
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ };
+
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+
+
+ Player.prototype.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingcustomcontrols');
+ }
+ };
+
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+
+
+ Player.prototype.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ }
+
+ // restoring to default
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+ return;
+ }
+
+ this.error_ = new MediaError(err);
+
+ // add the vjs-error classname to the player
+ this.addClass('vjs-error');
+
+ // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+ log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);
+
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+ this.trigger('error');
+
+ return;
+ };
+
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+
+
+ Player.prototype.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ };
+
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+
+
+ Player.prototype.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('useractive');
+ return;
+ }
+
+ // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('userinactive');
+ };
+
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+
+
+ Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress = void 0;
+ var lastMoveX = void 0;
+ var lastMoveY = void 0;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(mouseInProgress);
+ // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity();
+ // Stop the interval that maintains activity if the mouse/touch is down
+ this.clearInterval(mouseInProgress);
+ };
+
+ // Any mouse movement will be considered user activity
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+
+ // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity);
+
+ // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+ var inactivityTimeout = void 0;
+
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ }
+
+ // Reset the activity tracker
+ this.userActivity_ = false;
+
+ // If the user state was inactive, set the state to active
+ this.userActive(true);
+
+ // Clear any existing inactivity timeout to start the timer over
+ this.clearTimeout(inactivityTimeout);
+
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ }
+
+ // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ };
+
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+
+
+ Player.prototype.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+
+
+ Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+
+
+ Player.prototype.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ };
+
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+
+
+ Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ };
+
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ };
+
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+
+
+ Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {
+ var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ _ref3$track = _ref3.track,
+ track = _ref3$track === undefined ? arguments[0] : _ref3$track;
+
+ // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+
+
+ Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ };
+
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+
+
+ Player.prototype.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ };
+
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+
+
+ Player.prototype.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ };
+
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+
+
+ Player.prototype.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ };
+
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+
+
+ Player.prototype.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ };
+
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+
+
+ Player.prototype.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // deep merge tracks and null out player so no circular references
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ };
+
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+
+
+ Player.prototype.createModal = function createModal(content, options) {
+ var _this12 = this;
+
+ options = options || {};
+ options.content = content || '';
+
+ var modal = new ModalDialog(this, options);
+
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this12.removeChild(modal);
+ });
+
+ modal.open();
+ return modal;
+ };
+
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ }
+
+ // Check if data-setup attr exists.
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = safeParseTuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log$1.error(err);
+ }
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions);
+
+ // Get tag children settings
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i];
+ // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ };
+
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+
+
+ Player.prototype.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document.createElement('i');
+
+ // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||
+ // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+}(Component);
+
+/**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+/**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+/**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+/**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+/**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ }
+
+ // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+});
+
+/**
+ * Global player list
+ *
+ * @type {Object}
+ */
+Player.players = {};
+
+var navigator = window$1.navigator;
+
+/*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+
+ html5: {},
+ flash: {},
+
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+
+ // locales and their language translations
+ languages: {},
+
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.'
+};
+
+[
+/**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+'ended',
+/**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+'seeking',
+/**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+'seekable',
+/**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+'networkState',
+/**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+});
+
+TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {
+ return this.trigger(event);
+ };
+});
+
+/**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+/**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+Component.registerComponent('Player', Player);
+
+/**
+ * @file plugin.js
+ */
+
+/**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+var BASE_PLUGIN_NAME = 'plugin';
+
+/**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+var PLUGIN_CACHE_KEY = 'activePlugins_';
+
+/**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+var pluginStorage = {};
+
+/**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {boolean}
+ * Whether or not the plugin has been registered.
+ */
+var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+};
+
+/**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or undefined).
+ */
+var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+};
+
+/**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+};
+
+/**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {Boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+};
+
+/**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @returns {Function}
+ * A wrapper function for the given plugin.
+ */
+var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);
+
+ var instance = plugin.apply(this, arguments);
+
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });
+
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+
+ return basicPluginWrapper;
+};
+
+/**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @returns {Function}
+ */
+var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+
+ return function () {
+ triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();
+
+ // The plugin is replaced by a function that returns the current instance.
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+
+ return instance;
+ };
+};
+
+/**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+var Plugin = function () {
+
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ classCallCheck(this, Plugin);
+
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player;
+
+ // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+ evented(this);
+ delete this.trigger;
+
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name);
+
+ // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+ this.dispose = bind(this, this.dispose);
+
+ // If the player is disposed, dispose the plugin.
+ player.on('dispose', this.dispose);
+ }
+
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ Plugin.prototype.version = function version() {
+ return this.constructor.VERSION;
+ };
+
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @returns {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+
+
+ Plugin.prototype.getEventHash = function getEventHash() {
+ var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ };
+
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @returns {boolean}
+ * Whether or not default was prevented.
+ */
+
+
+ Plugin.prototype.trigger = function trigger$$1(event) {
+ var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ };
+
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+
+
+ Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};
+
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+
+
+ Plugin.prototype.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose);
+
+ // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null;
+
+ // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ };
+
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @returns {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ };
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @returns {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error('Illegal plugin name, "' + name + '", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');
+ }
+
+ if (pluginExists(name)) {
+ log$1.warn('A plugin named "' + name + '" already exists. You may want to avoid re-registering plugins!');
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error('Illegal plugin name, "' + name + '", cannot share a name with an existing player method!');
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error('Illegal plugin for "' + name + '", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');
+ }
+
+ pluginStorage[name] = plugin;
+
+ // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ };
+
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered.
+ */
+
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @returns {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+
+
+ Plugin.getPlugins = function getPlugins() {
+ var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);
+
+ var result = void 0;
+
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+
+ return result;
+ };
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {string}
+ * The plugin's version or an empty string.
+ */
+
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+}();
+
+/**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+Plugin.getPlugin = getPlugin;
+
+/**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+
+Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+/**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+};
+
+/**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+};
+
+/**
+ * @file extend.js
+ * @module extend
+ */
+
+/**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+};
+
+/**
+ * Function for subclassing using the same inheritance that
+ * videojs uses internally
+ *
+ * @static
+ * @const
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * The class to inherit to
+ *
+ * @return {Object}
+ * The new object with subClassMethods that inherited superClass.
+ */
+var extendFn = function extendFn(superClass) {
+ var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass);
+
+ // Extend subObj's prototype with functions and other properties from props
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+};
+
+/**
+ * @file video.js
+ * @module videojs
+ */
+
+/**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @returns {string}
+ * The string, without any leading `#`.
+ */
+var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+};
+
+/**
+ * Doubles as the main function for users to create a player instance and also
+ * the main library object.
+ * The `videojs` function can be used to initialize or retrieve a player.
+ *
+ * @param {string|Element} id
+ * Video element or video element ID
+ *
+ * @param {Object} [options]
+ * Optional options object for config/settings
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Optional ready callback
+ *
+ * @return {Player}
+ * A player instance
+ */
+function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log$1.warn('Player "' + id + '" is already initialised. Options will not be applied.');
+ }
+ if (ready) {
+ player.ready(ready);
+ }
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ }
+
+ if (!document.body.contains(el)) {
+ log$1.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log$1.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ });
+
+ // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+ var PlayerComponent = Component.getComponent('Player');
+
+ player = new PlayerComponent(el, options, ready);
+
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+
+ return player;
+}
+
+/**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ */
+videojs$1.hooks_ = {};
+
+/**
+ * Get a list of hooks for a specific lifecycle
+ * @function videojs.hooks
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+ return videojs$1.hooks_[type];
+};
+
+/**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+};
+
+/**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(undefined, arguments);
+ };
+
+ return wrapper;
+ }));
+};
+
+/**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+
+ return true;
+};
+
+// Add default styles
+if (window$1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style$1 = $('.vjs-styles-defaults');
+
+ if (!style$1) {
+ style$1 = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style$1, head.firstChild);
+ }
+ setTextContent(style$1, '\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ');
+ }
+}
+
+// Run Auto-load players
+// You have to wait at least once in case this script is loaded after your
+// video in the DOM (weird behavior only with minified version)
+autoSetupTimeout(1, videojs$1);
+
+/**
+ * Current software version. Follows semver.
+ *
+ * @type {string}
+ */
+videojs$1.VERSION = version;
+
+/**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+videojs$1.options = Player.prototype.options_;
+
+/**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+videojs$1.getPlayers = function () {
+ return Player.players;
+};
+
+/**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @returns {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag = void 0;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId;
+
+ // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+};
+
+/**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+videojs$1.getAllPlayers = function () {
+ return (
+
+ // Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+};
+
+/**
+ * Expose players object.
+ *
+ * @memberOf videojs
+ * @property {Object} players
+ */
+videojs$1.players = Player.players;
+
+/**
+ * Get a component class object by name
+ *
+ * @borrows Component.getComponent as videojs.getComponent
+ */
+videojs$1.getComponent = Component.getComponent;
+
+/**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+videojs$1.registerComponent = function (name$$1, comp) {
+ if (Tech.isTech(comp)) {
+ log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');
+ }
+
+ Component.registerComponent.call(Component, name$$1, comp);
+};
+
+/**
+ * Get a Tech class object by name
+ *
+ * @borrows Tech.getTech as videojs.getTech
+ */
+videojs$1.getTech = Tech.getTech;
+
+/**
+ * Register a Tech so it can referred to by name.
+ * This is used in the tech order for the player.
+ *
+ * @borrows Tech.registerTech as videojs.registerTech
+ */
+videojs$1.registerTech = Tech.registerTech;
+
+/**
+ * Register a middleware to a source type.
+ *
+ * @param {String} type A string representing a MIME type.
+ * @param {function(player):object} middleware A middleware factory that takes a player.
+ */
+videojs$1.use = use;
+
+/**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @memberOf {videojs}
+ * @property {object} middleware.TERMINATOR
+ */
+Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+});
+
+Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+});
+
+/**
+ * A suite of browser and device tests from {@link browser}.
+ *
+ * @type {Object}
+ * @private
+ */
+videojs$1.browser = browser;
+
+/**
+ * Whether or not the browser supports touch events. Included for backward
+ * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`
+ * instead going forward.
+ *
+ * @deprecated since version 5.0
+ * @type {boolean}
+ */
+videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+
+/**
+ * Subclass an existing class
+ * Mimics ES6 subclassing with the `extend` keyword
+ *
+ * @borrows extend:extendFn as videojs.extend
+ */
+videojs$1.extend = extendFn;
+
+/**
+ * Merge two options objects recursively
+ * Performs a deep merge like lodash.merge but **only merges plain objects**
+ * (not arrays, elements, anything else)
+ * Other values will be copied directly from the second object.
+ *
+ * @borrows merge-options:mergeOptions as videojs.mergeOptions
+ */
+videojs$1.mergeOptions = mergeOptions;
+
+/**
+ * Change the context (this) of a function
+ *
+ * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native
+ * `function() {}.bind(newContext);` instead of this.
+ *
+ * @borrows fn:bind as videojs.bind
+ */
+videojs$1.bind = bind;
+
+/**
+ * Register a Video.js plugin.
+ *
+ * @borrows plugin:registerPlugin as videojs.registerPlugin
+ * @method registerPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+videojs$1.registerPlugin = Plugin.registerPlugin;
+
+/**
+ * Deregister a Video.js plugin.
+ *
+ * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin
+ * @method deregisterPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered. Must be a string and
+ * must match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ */
+videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+
+/**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated
+ * videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+videojs$1.plugin = function (name$$1, plugin) {
+ log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name$$1, plugin);
+};
+
+/**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+videojs$1.getPlugins = Plugin.getPlugins;
+
+/**
+ * Gets a plugin by name if it exists.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+videojs$1.getPlugin = Plugin.getPlugin;
+
+/**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+videojs$1.getPluginVersion = Plugin.getPluginVersion;
+
+/**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+
+ return videojs$1.options.languages[code];
+};
+
+/**
+ * Log messages
+ *
+ * @borrows log:log as videojs.log
+ */
+videojs$1.log = log$1;
+
+/**
+ * Creates an emulated TimeRange object.
+ *
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRange
+ */
+/**
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges
+ */
+videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+
+/**
+ * Format seconds as a time string, H:MM:SS or M:SS
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide
+ *
+ * @borrows format-time:formatTime as videojs.formatTime
+ */
+videojs$1.formatTime = formatTime;
+
+/**
+ * Replaces format-time with a custom implementation, to be used in place of the default.
+ *
+ * @borrows format-time:setFormatTime as videojs.setFormatTime
+ *
+ * @method setFormatTime
+ *
+ * @param {Function} customFn
+ * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.
+ * Passed fn should return a string.
+ */
+videojs$1.setFormatTime = setFormatTime;
+
+/**
+ * Resets format-time to the default implementation.
+ *
+ * @borrows format-time:resetFormatTime as videojs.resetFormatTime
+ *
+ * @method resetFormatTime
+ */
+videojs$1.resetFormatTime = resetFormatTime;
+
+/**
+ * Resolve and parse the elements of a URL
+ *
+ * @borrows url:parseUrl as videojs.parseUrl
+ *
+ */
+videojs$1.parseUrl = parseUrl;
+
+/**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @borrows url:isCrossOrigin as videojs.isCrossOrigin
+ */
+videojs$1.isCrossOrigin = isCrossOrigin;
+
+/**
+ * Event target class.
+ *
+ * @borrows EventTarget as videojs.EventTarget
+ */
+videojs$1.EventTarget = EventTarget;
+
+/**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @borrows events:on as videojs.on
+ */
+videojs$1.on = on;
+
+/**
+ * Trigger a listener only once for an event
+ *
+ * @borrows events:one as videojs.one
+ */
+videojs$1.one = one;
+
+/**
+ * Removes event listeners from an element
+ *
+ * @borrows events:off as videojs.off
+ */
+videojs$1.off = off;
+
+/**
+ * Trigger an event for an element
+ *
+ * @borrows events:trigger as videojs.trigger
+ */
+videojs$1.trigger = trigger;
+
+/**
+ * A cross-browser XMLHttpRequest wrapper. Here's a simple example:
+ *
+ * @param {Object} options
+ * settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+videojs$1.xhr = xhr;
+
+/**
+ * TextTrack class
+ *
+ * @borrows TextTrack as videojs.TextTrack
+ */
+videojs$1.TextTrack = TextTrack;
+
+/**
+ * export the AudioTrack class so that source handlers can create
+ * AudioTracks and then add them to the players AudioTrackList
+ *
+ * @borrows AudioTrack as videojs.AudioTrack
+ */
+videojs$1.AudioTrack = AudioTrack;
+
+/**
+ * export the VideoTrack class so that source handlers can create
+ * VideoTracks and then add them to the players VideoTrackList
+ *
+ * @borrows VideoTrack as videojs.VideoTrack
+ */
+videojs$1.VideoTrack = VideoTrack;
+
+/**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @borrows dom:isEl as videojs.isEl
+ * @deprecated Use videojs.dom.isEl() instead
+ */
+
+/**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @borrows dom:isTextNode as videojs.isTextNode
+ * @deprecated Use videojs.dom.isTextNode() instead
+ */
+
+/**
+ * Creates an element and applies properties.
+ *
+ * @borrows dom:createEl as videojs.createEl
+ * @deprecated Use videojs.dom.createEl() instead
+ */
+
+/**
+ * Check if an element has a CSS class
+ *
+ * @borrows dom:hasElClass as videojs.hasClass
+ * @deprecated Use videojs.dom.hasClass() instead
+ */
+
+/**
+ * Add a CSS class name to an element
+ *
+ * @borrows dom:addElClass as videojs.addClass
+ * @deprecated Use videojs.dom.addClass() instead
+ */
+
+/**
+ * Remove a CSS class name from an element
+ *
+ * @borrows dom:removeElClass as videojs.removeClass
+ * @deprecated Use videojs.dom.removeClass() instead
+ */
+
+/**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @borrows dom:toggleElClass as videojs.toggleClass
+ * @deprecated Use videojs.dom.toggleClass() instead
+ */
+
+/**
+ * Apply attributes to an HTML element.
+ *
+ * @borrows dom:setElAttributes as videojs.setAttribute
+ * @deprecated Use videojs.dom.setAttributes() instead
+ */
+
+/**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @borrows dom:getElAttributes as videojs.getAttributes
+ * @deprecated Use videojs.dom.getAttributes() instead
+ */
+
+/**
+ * Empties the contents of an element.
+ *
+ * @borrows dom:emptyEl as videojs.emptyEl
+ * @deprecated Use videojs.dom.emptyEl() instead
+ */
+
+/**
+ * Normalizes and appends content to an element.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:appendContents as videojs.appendContet
+ * @deprecated Use videojs.dom.appendContent() instead
+ */
+
+/**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:insertContent as videojs.insertContent
+ * @deprecated Use videojs.dom.insertContent() instead
+ */
+['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');
+ return Dom[k].apply(null, arguments);
+ };
+});
+
+/**
+ * A safe getComputedStyle.
+ *
+ * This is because in Firefox, if the player is loaded in an iframe with `display:none`,
+ * then `getComputedStyle` returns `null`, so, we do a null-check to make sure
+ * that the player doesn't break in these cases.
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.
+ *
+ * @borrows computed-style:computedStyle as videojs.computedStyle
+ */
+videojs$1.computedStyle = computedStyle;
+
+/**
+ * Export the Dom utilities for use in external plugins
+ * and Tech's
+ */
+videojs$1.dom = Dom;
+
+/**
+ * Export the Url utilities for use in external plugins
+ * and Tech's
+ */
+videojs$1.url = Url;
+
+/**
+ * @videojs/http-streaming
+ * @version 1.2.6
+ * @copyright 2018 Brightcove, Inc
+ * @license Apache-2.0
+ */
+
+/**
+ * @file resolve-url.js
+ */
+
+var resolveUrl = function resolveUrl(baseURL, relativeURL) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeURL)) {
+ return relativeURL;
+ }
+
+ // if the base URL is relative then combine with the current location
+ if (!/\/\//i.test(baseURL)) {
+ baseURL = URLToolkit.buildAbsoluteURL(window$1.location.href, baseURL);
+ }
+
+ return URLToolkit.buildAbsoluteURL(baseURL, relativeURL);
+};
+
+var classCallCheck$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+};
+
+var createClass$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+}();
+
+var get$2 = function get$$1(object, property, receiver) {
+ if (object === null) object = Function.prototype;
+ var desc = Object.getOwnPropertyDescriptor(object, property);
+
+ if (desc === undefined) {
+ var parent = Object.getPrototypeOf(object);
+
+ if (parent === null) {
+ return undefined;
+ } else {
+ return get$$1(parent, property, receiver);
+ }
+ } else if ("value" in desc) {
+ return desc.value;
+ } else {
+ var getter = desc.get;
+
+ if (getter === undefined) {
+ return undefined;
+ }
+
+ return getter.call(receiver);
+ }
+};
+
+var inherits$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+var possibleConstructorReturn$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+};
+
+var slicedToArray$1 = function () {
+ function sliceIterator(arr, i) {
+ var _arr = [];
+ var _n = true;
+ var _d = false;
+ var _e = undefined;
+
+ try {
+ for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+ _arr.push(_s.value);
+
+ if (i && _arr.length === i) break;
+ }
+ } catch (err) {
+ _d = true;
+ _e = err;
+ } finally {
+ try {
+ if (!_n && _i["return"]) _i["return"]();
+ } finally {
+ if (_d) throw _e;
+ }
+ }
+
+ return _arr;
+ }
+
+ return function (arr, i) {
+ if (Array.isArray(arr)) {
+ return arr;
+ } else if (Symbol.iterator in Object(arr)) {
+ return sliceIterator(arr, i);
+ } else {
+ throw new TypeError("Invalid attempt to destructure non-iterable instance");
+ }
+ };
+}();
+
+/**
+ * @file playlist-loader.js
+ *
+ * A state machine that manages the loading, caching, and updating of
+ * M3U8 playlists.
+ *
+ */
+
+var mergeOptions$1 = videojs$1.mergeOptions,
+ EventTarget$1 = videojs$1.EventTarget,
+ log$2 = videojs$1.log;
+
+/**
+ * Loops through all supported media groups in master and calls the provided
+ * callback for each group
+ *
+ * @param {Object} master
+ * The parsed master manifest object
+ * @param {Function} callback
+ * Callback to call for each media group
+ */
+
+var forEachMediaGroup = function forEachMediaGroup(master, callback) {
+ ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {
+ for (var groupKey in master.mediaGroups[mediaType]) {
+ for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
+ var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+
+ callback(mediaProperties, mediaType, groupKey, labelKey);
+ }
+ }
+ });
+};
+
+/**
+ * Returns a new array of segments that is the result of merging
+ * properties from an older list of segments onto an updated
+ * list. No properties on the updated playlist will be overridden.
+ *
+ * @param {Array} original the outdated list of segments
+ * @param {Array} update the updated list of segments
+ * @param {Number=} offset the index of the first update
+ * segment in the original segment list. For non-live playlists,
+ * this should always be zero and does not need to be
+ * specified. For live playlists, it should be the difference
+ * between the media sequence numbers in the original and updated
+ * playlists.
+ * @return a list of merged segment objects
+ */
+var updateSegments = function updateSegments(original, update, offset) {
+ var result = update.slice();
+
+ offset = offset || 0;
+ var length = Math.min(original.length, update.length + offset);
+
+ for (var i = offset; i < length; i++) {
+ result[i - offset] = mergeOptions$1(original[i], result[i - offset]);
+ }
+ return result;
+};
+
+var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {
+ if (!segment.resolvedUri) {
+ segment.resolvedUri = resolveUrl(baseUri, segment.uri);
+ }
+ if (segment.key && !segment.key.resolvedUri) {
+ segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);
+ }
+ if (segment.map && !segment.map.resolvedUri) {
+ segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);
+ }
+};
+
+/**
+ * Returns a new master playlist that is the result of merging an
+ * updated media playlist into the original version. If the
+ * updated media playlist does not match any of the playlist
+ * entries in the original master playlist, null is returned.
+ *
+ * @param {Object} master a parsed master M3U8 object
+ * @param {Object} media a parsed media M3U8 object
+ * @return {Object} a new object that represents the original
+ * master playlist with the updated media playlist merged in, or
+ * null if the merge produced no change.
+ */
+var updateMaster = function updateMaster(master, media) {
+ var result = mergeOptions$1(master, {});
+ var playlist = result.playlists[media.uri];
+
+ if (!playlist) {
+ return null;
+ }
+
+ // consider the playlist unchanged if the number of segments is equal and the media
+ // sequence number is unchanged
+ if (playlist.segments && media.segments && playlist.segments.length === media.segments.length && playlist.mediaSequence === media.mediaSequence) {
+ return null;
+ }
+
+ var mergedPlaylist = mergeOptions$1(playlist, media);
+
+ // if the update could overlap existing segment information, merge the two segment lists
+ if (playlist.segments) {
+ mergedPlaylist.segments = updateSegments(playlist.segments, media.segments, media.mediaSequence - playlist.mediaSequence);
+ }
+
+ // resolve any segment URIs to prevent us from having to do it later
+ mergedPlaylist.segments.forEach(function (segment) {
+ resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
+ });
+
+ // TODO Right now in the playlists array there are two references to each playlist, one
+ // that is referenced by index, and one by URI. The index reference may no longer be
+ // necessary.
+ for (var i = 0; i < result.playlists.length; i++) {
+ if (result.playlists[i].uri === media.uri) {
+ result.playlists[i] = mergedPlaylist;
+ }
+ }
+ result.playlists[media.uri] = mergedPlaylist;
+
+ return result;
+};
+
+var setupMediaPlaylists = function setupMediaPlaylists(master) {
+ // setup by-URI lookups and resolve media playlist URIs
+ var i = master.playlists.length;
+
+ while (i--) {
+ var playlist = master.playlists[i];
+
+ master.playlists[playlist.uri] = playlist;
+ playlist.resolvedUri = resolveUrl(master.uri, playlist.uri);
+ playlist.id = i;
+
+ if (!playlist.attributes) {
+ // Although the spec states an #EXT-X-STREAM-INF tag MUST have a
+ // BANDWIDTH attribute, we can play the stream without it. This means a poorly
+ // formatted master playlist may not have an attribute list. An attributes
+ // property is added here to prevent undefined references when we encounter
+ // this scenario.
+ playlist.attributes = {};
+
+ log$2.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
+ }
+ }
+};
+
+var resolveMediaGroupUris = function resolveMediaGroupUris(master) {
+ forEachMediaGroup(master, function (properties) {
+ if (properties.uri) {
+ properties.resolvedUri = resolveUrl(master.uri, properties.uri);
+ }
+ });
+};
+
+/**
+ * Calculates the time to wait before refreshing a live playlist
+ *
+ * @param {Object} media
+ * The current media
+ * @param {Boolean} update
+ * True if there were any updates from the last refresh, false otherwise
+ * @return {Number}
+ * The time in ms to wait before refreshing the live playlist
+ */
+var refreshDelay = function refreshDelay(media, update) {
+ var lastSegment = media.segments[media.segments.length - 1];
+ var delay = void 0;
+
+ if (update && lastSegment && lastSegment.duration) {
+ delay = lastSegment.duration * 1000;
+ } else {
+ // if the playlist is unchanged since the last reload or last segment duration
+ // cannot be determined, try again after half the target duration
+ delay = (media.targetDuration || 10) * 500;
+ }
+ return delay;
+};
+
+/**
+ * Load a playlist from a remote location
+ *
+ * @class PlaylistLoader
+ * @extends Stream
+ * @param {String} srcUrl the url to start with
+ * @param {Boolean} withCredentials the withCredentials xhr option
+ * @constructor
+ */
+
+var PlaylistLoader = function (_EventTarget) {
+ inherits$1(PlaylistLoader, _EventTarget);
+
+ function PlaylistLoader(srcUrl, hls, withCredentials) {
+ classCallCheck$1(this, PlaylistLoader);
+
+ var _this = possibleConstructorReturn$1(this, (PlaylistLoader.__proto__ || Object.getPrototypeOf(PlaylistLoader)).call(this));
+
+ _this.srcUrl = srcUrl;
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!_this.srcUrl) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ // initialize the loader state
+ _this.state = 'HAVE_NOTHING';
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ if (_this.state !== 'HAVE_METADATA') {
+ // only refresh the media playlist if no other activity is going on
+ return;
+ }
+
+ _this.state = 'HAVE_CURRENT_METADATA';
+
+ _this.request = _this.hls_.xhr({
+ uri: resolveUrl(_this.master.uri, _this.media().uri),
+ withCredentials: _this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this.request) {
+ return;
+ }
+
+ if (error) {
+ return _this.playlistRequestError(_this.request, _this.media().uri, 'HAVE_METADATA');
+ }
+
+ _this.haveMetadata(_this.request, _this.media().uri);
+ });
+ });
+ return _this;
+ }
+
+ createClass$1(PlaylistLoader, [{
+ key: 'playlistRequestError',
+ value: function playlistRequestError(xhr$$1, url, startingState) {
+ // any in-flight request is now finished
+ this.request = null;
+
+ if (startingState) {
+ this.state = startingState;
+ }
+
+ this.error = {
+ playlist: this.master.playlists[url],
+ status: xhr$$1.status,
+ message: 'HLS playlist request error at URL: ' + url,
+ responseText: xhr$$1.responseText,
+ code: xhr$$1.status >= 500 ? 4 : 2
+ };
+
+ this.trigger('error');
+ }
+
+ // update the playlist loader's state in response to a new or
+ // updated playlist.
+
+ }, {
+ key: 'haveMetadata',
+ value: function haveMetadata(xhr$$1, url) {
+ var _this2 = this;
+
+ // any in-flight request is now finished
+ this.request = null;
+ this.state = 'HAVE_METADATA';
+
+ var parser = new m3u8Parser.Parser();
+
+ parser.push(xhr$$1.responseText);
+ parser.end();
+ parser.manifest.uri = url;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ parser.manifest.attributes = parser.manifest.attributes || {};
+
+ // merge this playlist into the master
+ var update = updateMaster(this.master, parser.manifest);
+
+ this.targetDuration = parser.manifest.targetDuration;
+
+ if (update) {
+ this.master = update;
+ this.media_ = this.master.playlists[parser.manifest.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ // refresh live playlists after a target duration passes
+ if (!this.media().endList) {
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ _this2.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!update));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Abort any outstanding work and clean up.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+
+ /**
+ * When called without any arguments, returns the currently
+ * active media playlist. When called with a single argument,
+ * triggers the playlist loader to asynchronously switch to the
+ * specified media playlist. Calling this method while the
+ * loader is in the HAVE_NOTHING causes an error to be emitted
+ * but otherwise has no effect.
+ *
+ * @param {Object=} playlist the parsed media playlist
+ * object to switch to
+ * @return {Playlist} the current loaded media
+ */
+
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ var _this3 = this;
+
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been
+ // specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ // switch to fully loaded playlists immediately
+ if (this.master.playlists[playlist.uri].endList) {
+ // abort outstanding playlist requests
+ if (this.request) {
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+ this.state = 'HAVE_METADATA';
+ this.media_ = playlist;
+
+ // trigger media change if the active media has been updated
+ if (mediaChange) {
+ this.trigger('mediachanging');
+ this.trigger('mediachange');
+ }
+ return;
+ }
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ this.state = 'SWITCHING_MEDIA';
+
+ // there is already an outstanding playlist request
+ if (this.request) {
+ if (resolveUrl(this.master.uri, playlist.uri) === this.request.url) {
+ // requesting to switch to the same playlist multiple times
+ // has no effect after the first
+ return;
+ }
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+
+ // request the new playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl(this.master.uri, playlist.uri),
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ return _this3.playlistRequestError(_this3.request, playlist.uri, startingState);
+ }
+
+ _this3.haveMetadata(req, playlist.uri);
+
+ // fire loadedmetadata the first time a media playlist is loaded
+ if (startingState === 'HAVE_MASTER') {
+ _this3.trigger('loadedmetadata');
+ } else {
+ _this3.trigger('mediachange');
+ }
+ });
+ }
+
+ /**
+ * pause loading of the playlist
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ // Need to restore state now that no activity is happening
+ if (this.state === 'SWITCHING_MEDIA') {
+ // if the loader was in the process of switching media, it should either return to
+ // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media
+ // playlist yet. This is determined by the existence of loader.media_
+ if (this.media_) {
+ this.state = 'HAVE_METADATA';
+ } else {
+ this.state = 'HAVE_MASTER';
+ }
+ } else if (this.state === 'HAVE_CURRENT_METADATA') {
+ this.state = 'HAVE_METADATA';
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'load',
+ value: function load(isFinalRendition) {
+ var _this4 = this;
+
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+
+ var media = this.media();
+
+ if (isFinalRendition) {
+ var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ return _this4.load();
+ }, delay);
+ return;
+ }
+
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ if (media && !media.endList) {
+ this.trigger('mediaupdatetimeout');
+ } else {
+ this.trigger('loadedplaylist');
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this5 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'HLS playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ var parser = new m3u8Parser.Parser();
+
+ parser.push(req.responseText);
+ parser.end();
+
+ _this5.state = 'HAVE_MASTER';
+
+ parser.manifest.uri = _this5.srcUrl;
+
+ // loaded a master playlist
+ if (parser.manifest.playlists) {
+ _this5.master = parser.manifest;
+
+ setupMediaPlaylists(_this5.master);
+ resolveMediaGroupUris(_this5.master);
+
+ _this5.trigger('loadedplaylist');
+ if (!_this5.request) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ _this5.media(parser.manifest.playlists[0]);
+ }
+ return;
+ }
+
+ // loaded a media playlist
+ // infer a master playlist if none was previously requested
+ _this5.master = {
+ mediaGroups: {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ },
+ uri: window$1.location.href,
+ playlists: [{
+ uri: _this5.srcUrl,
+ id: 0
+ }]
+ };
+ _this5.master.playlists[_this5.srcUrl] = _this5.master.playlists[0];
+ _this5.master.playlists[0].resolvedUri = _this5.srcUrl;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ _this5.master.playlists[0].attributes = _this5.master.playlists[0].attributes || {};
+ _this5.haveMetadata(req, _this5.srcUrl);
+ return _this5.trigger('loadedmetadata');
+ });
+ }
+ }]);
+ return PlaylistLoader;
+}(EventTarget$1);
+
+/**
+ * @file playlist.js
+ *
+ * Playlist related utilities.
+ */
+
+var createTimeRange = videojs$1.createTimeRange;
+
+/**
+ * walk backward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+
+var backwardDuration = function backwardDuration(playlist, endSequence) {
+ var result = 0;
+ var i = endSequence - playlist.mediaSequence;
+ // if a start time is available for segment immediately following
+ // the interval, use it
+ var segment = playlist.segments[i];
+
+ // Walk backward until we find the latest segment with timeline
+ // information that is earlier than endSequence
+ if (segment) {
+ if (typeof segment.start !== 'undefined') {
+ return { result: segment.start, precise: true };
+ }
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - segment.duration,
+ precise: true
+ };
+ }
+ }
+ while (i--) {
+ segment = playlist.segments[i];
+ if (typeof segment.end !== 'undefined') {
+ return { result: result + segment.end, precise: true };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.start !== 'undefined') {
+ return { result: result + segment.start, precise: true };
+ }
+ }
+ return { result: result, precise: false };
+};
+
+/**
+ * walk forward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+var forwardDuration = function forwardDuration(playlist, endSequence) {
+ var result = 0;
+ var segment = void 0;
+ var i = endSequence - playlist.mediaSequence;
+ // Walk forward until we find the earliest segment with timeline
+ // information
+
+ for (; i < playlist.segments.length; i++) {
+ segment = playlist.segments[i];
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: segment.start - result,
+ precise: true
+ };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - result,
+ precise: true
+ };
+ }
+ }
+ // indicate we didn't find a useful duration estimate
+ return { result: -1, precise: false };
+};
+
+/**
+ * Calculate the media duration from the segments associated with a
+ * playlist. The duration of a subinterval of the available segments
+ * may be calculated by specifying an end index.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper boundary
+ * for the playlist. Defaults to playlist length.
+ * @param {Number} expired the amount of time that has dropped
+ * off the front of the playlist in a live scenario
+ * @return {Number} the duration between the first available segment
+ * and end index.
+ */
+var intervalDuration = function intervalDuration(playlist, endSequence, expired) {
+ var backward = void 0;
+ var forward = void 0;
+
+ if (typeof endSequence === 'undefined') {
+ endSequence = playlist.mediaSequence + playlist.segments.length;
+ }
+
+ if (endSequence < playlist.mediaSequence) {
+ return 0;
+ }
+
+ // do a backward walk to estimate the duration
+ backward = backwardDuration(playlist, endSequence);
+ if (backward.precise) {
+ // if we were able to base our duration estimate on timing
+ // information provided directly from the Media Source, return
+ // it
+ return backward.result;
+ }
+
+ // walk forward to see if a precise duration estimate can be made
+ // that way
+ forward = forwardDuration(playlist, endSequence);
+ if (forward.precise) {
+ // we found a segment that has been buffered and so it's
+ // position is known precisely
+ return forward.result;
+ }
+
+ // return the less-precise, playlist-based duration estimate
+ return backward.result + expired;
+};
+
+/**
+ * Calculates the duration of a playlist. If a start and end index
+ * are specified, the duration will be for the subset of the media
+ * timeline between those two indices. The total duration for live
+ * playlists is always Infinity.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper
+ * boundary for the playlist. Defaults to the playlist media
+ * sequence number plus its length.
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {Number} the duration between the start index and end
+ * index.
+ */
+var duration = function duration(playlist, endSequence, expired) {
+ if (!playlist) {
+ return 0;
+ }
+
+ if (typeof expired !== 'number') {
+ expired = 0;
+ }
+
+ // if a slice of the total duration is not requested, use
+ // playlist-level duration indicators when they're present
+ if (typeof endSequence === 'undefined') {
+ // if present, use the duration specified in the playlist
+ if (playlist.totalDuration) {
+ return playlist.totalDuration;
+ }
+
+ // duration should be Infinity for live playlists
+ if (!playlist.endList) {
+ return window$1.Infinity;
+ }
+ }
+
+ // calculate the total duration based on the segment durations
+ return intervalDuration(playlist, endSequence, expired);
+};
+
+/**
+ * Calculate the time between two indexes in the current playlist
+ * neight the start- nor the end-index need to be within the current
+ * playlist in which case, the targetDuration of the playlist is used
+ * to approximate the durations of the segments
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number} startIndex
+ * @param {Number} endIndex
+ * @return {Number} the number of seconds between startIndex and endIndex
+ */
+var sumDurations = function sumDurations(playlist, startIndex, endIndex) {
+ var durations = 0;
+
+ if (startIndex > endIndex) {
+ var _ref = [endIndex, startIndex];
+ startIndex = _ref[0];
+ endIndex = _ref[1];
+ }
+
+ if (startIndex < 0) {
+ for (var i = startIndex; i < Math.min(0, endIndex); i++) {
+ durations += playlist.targetDuration;
+ }
+ startIndex = 0;
+ }
+
+ for (var _i = startIndex; _i < endIndex; _i++) {
+ durations += playlist.segments[_i].duration;
+ }
+
+ return durations;
+};
+
+/**
+ * Determines the media index of the segment corresponding to the safe edge of the live
+ * window which is the duration of the last segment plus 2 target durations from the end
+ * of the playlist.
+ *
+ * @param {Object} playlist
+ * a media playlist object
+ * @return {Number}
+ * The media index of the segment at the safe live point. 0 if there is no "safe"
+ * point.
+ * @function safeLiveIndex
+ */
+var safeLiveIndex = function safeLiveIndex(playlist) {
+ if (!playlist.segments.length) {
+ return 0;
+ }
+
+ var i = playlist.segments.length - 1;
+ var distanceFromEnd = playlist.segments[i].duration || playlist.targetDuration;
+ var safeDistance = distanceFromEnd + playlist.targetDuration * 2;
+
+ while (i--) {
+ distanceFromEnd += playlist.segments[i].duration;
+
+ if (distanceFromEnd >= safeDistance) {
+ break;
+ }
+ }
+
+ return Math.max(0, i);
+};
+
+/**
+ * Calculates the playlist end time
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @param {Boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
+ * playlist end calculation should consider the safe live end
+ * (truncate the playlist end by three segments). This is normally
+ * used for calculating the end of the playlist's seekable range.
+ * @returns {Number} the end time of playlist
+ * @function playlistEnd
+ */
+var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+ if (playlist.endList) {
+ return duration(playlist);
+ }
+
+ if (expired === null) {
+ return null;
+ }
+
+ expired = expired || 0;
+
+ var endSequence = useSafeLiveEnd ? safeLiveIndex(playlist) : playlist.segments.length;
+
+ return intervalDuration(playlist, playlist.mediaSequence + endSequence, expired);
+};
+
+/**
+ * Calculates the interval of time that is currently seekable in a
+ * playlist. The returned time ranges are relative to the earliest
+ * moment in the specified playlist that is still available. A full
+ * seekable implementation for live streams would need to offset
+ * these values by the duration of content that has expired from the
+ * stream.
+ *
+ * @param {Object} playlist a media playlist object
+ * dropped off the front of the playlist in a live scenario
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {TimeRanges} the periods of time that are valid targets
+ * for seeking
+ */
+var seekable = function seekable(playlist, expired) {
+ var useSafeLiveEnd = true;
+ var seekableStart = expired || 0;
+ var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd);
+
+ if (seekableEnd === null) {
+ return createTimeRange();
+ }
+ return createTimeRange(seekableStart, seekableEnd);
+};
+
+var isWholeNumber = function isWholeNumber(num) {
+ return num - Math.floor(num) === 0;
+};
+
+var roundSignificantDigit = function roundSignificantDigit(increment, num) {
+ // If we have a whole number, just add 1 to it
+ if (isWholeNumber(num)) {
+ return num + increment * 0.1;
+ }
+
+ var numDecimalDigits = num.toString().split('.')[1].length;
+
+ for (var i = 1; i <= numDecimalDigits; i++) {
+ var scale = Math.pow(10, i);
+ var temp = num * scale;
+
+ if (isWholeNumber(temp) || i === numDecimalDigits) {
+ return (temp + increment) / scale;
+ }
+ }
+};
+
+var ceilLeastSignificantDigit = roundSignificantDigit.bind(null, 1);
+var floorLeastSignificantDigit = roundSignificantDigit.bind(null, -1);
+
+/**
+ * Determine the index and estimated starting time of the segment that
+ * contains a specified playback position in a media playlist.
+ *
+ * @param {Object} playlist the media playlist to query
+ * @param {Number} currentTime The number of seconds since the earliest
+ * possible position to determine the containing segment for
+ * @param {Number} startIndex
+ * @param {Number} startTime
+ * @return {Object}
+ */
+var getMediaInfoForTime = function getMediaInfoForTime(playlist, currentTime, startIndex, startTime) {
+ var i = void 0;
+ var segment = void 0;
+ var numSegments = playlist.segments.length;
+
+ var time = currentTime - startTime;
+
+ if (time < 0) {
+ // Walk backward from startIndex in the playlist, adding durations
+ // until we find a segment that contains `time` and return it
+ if (startIndex > 0) {
+ for (i = startIndex - 1; i >= 0; i--) {
+ segment = playlist.segments[i];
+ time += floorLeastSignificantDigit(segment.duration);
+ if (time > 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime - sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+ }
+ // We were unable to find a good segment within the playlist
+ // so select the first segment
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+
+ // When startIndex is negative, we first walk forward to first segment
+ // adding target durations. If we "run out of time" before getting to
+ // the first segment, return the first segment
+ if (startIndex < 0) {
+ for (i = startIndex; i < 0; i++) {
+ time -= playlist.targetDuration;
+ if (time < 0) {
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+ }
+ startIndex = 0;
+ }
+
+ // Walk forward from startIndex in the playlist, subtracting durations
+ // until we find a segment that contains `time` and return it
+ for (i = startIndex; i < numSegments; i++) {
+ segment = playlist.segments[i];
+ time -= ceilLeastSignificantDigit(segment.duration);
+ if (time < 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime + sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+
+ // We are out of possible candidates so load the last one...
+ return {
+ mediaIndex: numSegments - 1,
+ startTime: currentTime
+ };
+};
+
+/**
+ * Check whether the playlist is blacklisted or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is blacklisted or not
+ * @function isBlacklisted
+ */
+var isBlacklisted = function isBlacklisted(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil > Date.now();
+};
+
+/**
+ * Check whether the playlist is compatible with current playback configuration or has
+ * been blacklisted permanently for being incompatible.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is incompatible or not
+ * @function isIncompatible
+ */
+var isIncompatible = function isIncompatible(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil === Infinity;
+};
+
+/**
+ * Check whether the playlist is enabled or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is enabled or not
+ * @function isEnabled
+ */
+var isEnabled = function isEnabled(playlist) {
+ var blacklisted = isBlacklisted(playlist);
+
+ return !playlist.disabled && !blacklisted;
+};
+
+/**
+ * Check whether the playlist has been manually disabled through the representations api.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is disabled manually or not
+ * @function isDisabled
+ */
+var isDisabled = function isDisabled(playlist) {
+ return playlist.disabled;
+};
+
+/**
+ * Returns whether the current playlist is an AES encrypted HLS stream
+ *
+ * @return {Boolean} true if it's an AES encrypted HLS stream
+ */
+var isAes = function isAes(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].key) {
+ return true;
+ }
+ }
+ return false;
+};
+
+/**
+ * Returns whether the current playlist contains fMP4
+ *
+ * @return {Boolean} true if the playlist contains fMP4
+ */
+var isFmp4 = function isFmp4(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].map) {
+ return true;
+ }
+ }
+ return false;
+};
+
+/**
+ * Checks if the playlist has a value for the specified attribute
+ *
+ * @param {String} attr
+ * Attribute to check for
+ * @param {Object} playlist
+ * The media playlist object
+ * @return {Boolean}
+ * Whether the playlist contains a value for the attribute or not
+ * @function hasAttribute
+ */
+var hasAttribute = function hasAttribute(attr, playlist) {
+ return playlist.attributes && playlist.attributes[attr];
+};
+
+/**
+ * Estimates the time required to complete a segment download from the specified playlist
+ *
+ * @param {Number} segmentDuration
+ * Duration of requested segment
+ * @param {Number} bandwidth
+ * Current measured bandwidth of the player
+ * @param {Object} playlist
+ * The media playlist object
+ * @param {Number=} bytesReceived
+ * Number of bytes already received for the request. Defaults to 0
+ * @return {Number|NaN}
+ * The estimated time to request the segment. NaN if bandwidth information for
+ * the given playlist is unavailable
+ * @function estimateSegmentRequestTime
+ */
+var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist) {
+ var bytesReceived = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
+
+ if (!hasAttribute('BANDWIDTH', playlist)) {
+ return NaN;
+ }
+
+ var size = segmentDuration * playlist.attributes.BANDWIDTH;
+
+ return (size - bytesReceived * 8) / bandwidth;
+};
+
+/*
+ * Returns whether the current playlist is the lowest rendition
+ *
+ * @return {Boolean} true if on lowest rendition
+ */
+var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {
+ if (master.playlists.length === 1) {
+ return true;
+ }
+
+ var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
+
+ return master.playlists.filter(function (playlist) {
+ if (!isEnabled(playlist)) {
+ return false;
+ }
+
+ return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
+ }).length === 0;
+};
+
+// exports
+var Playlist = {
+ duration: duration,
+ seekable: seekable,
+ safeLiveIndex: safeLiveIndex,
+ getMediaInfoForTime: getMediaInfoForTime,
+ isEnabled: isEnabled,
+ isDisabled: isDisabled,
+ isBlacklisted: isBlacklisted,
+ isIncompatible: isIncompatible,
+ playlistEnd: playlistEnd,
+ isAes: isAes,
+ isFmp4: isFmp4,
+ hasAttribute: hasAttribute,
+ estimateSegmentRequestTime: estimateSegmentRequestTime,
+ isLowestEnabledRendition: isLowestEnabledRendition
+};
+
+/**
+ * @file xhr.js
+ */
+
+var videojsXHR = videojs$1.xhr,
+ mergeOptions$1$1 = videojs$1.mergeOptions;
+
+var xhrFactory = function xhrFactory() {
+ var xhr$$1 = function XhrFunction(options, callback) {
+ // Add a default timeout for all hls requests
+ options = mergeOptions$1$1({
+ timeout: 45e3
+ }, options);
+
+ // Allow an optional user-specified function to modify the option
+ // object before we construct the xhr request
+ var beforeRequest = XhrFunction.beforeRequest || videojs$1.Hls.xhr.beforeRequest;
+
+ if (beforeRequest && typeof beforeRequest === 'function') {
+ var newOptions = beforeRequest(options);
+
+ if (newOptions) {
+ options = newOptions;
+ }
+ }
+
+ var request = videojsXHR(options, function (error, response) {
+ var reqResponse = request.response;
+
+ if (!error && reqResponse) {
+ request.responseTime = Date.now();
+ request.roundTripTime = request.responseTime - request.requestTime;
+ request.bytesReceived = reqResponse.byteLength || reqResponse.length;
+ if (!request.bandwidth) {
+ request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
+ }
+ }
+
+ if (response.headers) {
+ request.responseHeaders = response.headers;
+ }
+
+ // videojs.xhr now uses a specific code on the error
+ // object to signal that a request has timed out instead
+ // of setting a boolean on the request object
+ if (error && error.code === 'ETIMEDOUT') {
+ request.timedout = true;
+ }
+
+ // videojs.xhr no longer considers status codes outside of 200 and 0
+ // (for file uris) to be errors, but the old XHR did, so emulate that
+ // behavior. Status 206 may be used in response to byterange requests.
+ if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
+ error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
+ }
+
+ callback(error, request);
+ });
+ var originalAbort = request.abort;
+
+ request.abort = function () {
+ request.aborted = true;
+ return originalAbort.apply(request, arguments);
+ };
+ request.uri = options.uri;
+ request.requestTime = Date.now();
+ return request;
+ };
+
+ return xhr$$1;
+};
+
+/**
+ * @file bin-utils.js
+ */
+
+/**
+ * convert a TimeRange to text
+ *
+ * @param {TimeRange} range the timerange to use for conversion
+ * @param {Number} i the iterator on the range to convert
+ */
+var textRange = function textRange(range, i) {
+ return range.start(i) + '-' + range.end(i);
+};
+
+/**
+ * format a number as hex string
+ *
+ * @param {Number} e The number
+ * @param {Number} i the iterator
+ */
+var formatHexString = function formatHexString(e, i) {
+ var value = e.toString(16);
+
+ return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
+};
+var formatAsciiString = function formatAsciiString(e) {
+ if (e >= 0x20 && e < 0x7e) {
+ return String.fromCharCode(e);
+ }
+ return '.';
+};
+
+/**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+};
+
+/**
+ * Returns a unique string identifier for a media initialization
+ * segment.
+ */
+var initSegmentId = function initSegmentId(initSegment) {
+ var byterange = initSegment.byterange || {
+ length: Infinity,
+ offset: 0
+ };
+
+ return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
+};
+
+/**
+ * utils to help dump binary data to the console
+ */
+var hexDump = function hexDump(data) {
+ var bytes = Array.prototype.slice.call(data);
+ var step = 16;
+ var result = '';
+ var hex = void 0;
+ var ascii = void 0;
+
+ for (var j = 0; j < bytes.length / step; j++) {
+ hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
+ ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
+ result += hex + ' ' + ascii + '\n';
+ }
+
+ return result;
+};
+
+var tagDump = function tagDump(_ref) {
+ var bytes = _ref.bytes;
+ return hexDump(bytes);
+};
+
+var textRanges = function textRanges(ranges) {
+ var result = '';
+ var i = void 0;
+
+ for (i = 0; i < ranges.length; i++) {
+ result += textRange(ranges, i) + ' ';
+ }
+ return result;
+};
+
+var utils = /*#__PURE__*/Object.freeze({
+ createTransferableMessage: createTransferableMessage,
+ initSegmentId: initSegmentId,
+ hexDump: hexDump,
+ tagDump: tagDump,
+ textRanges: textRanges
+});
+
+/**
+ * ranges
+ *
+ * Utilities for working with TimeRanges.
+ *
+ */
+
+// Fudge factor to account for TimeRanges rounding
+var TIME_FUDGE_FACTOR = 1 / 30;
+// Comparisons between time values such as current time and the end of the buffered range
+// can be misleading because of precision differences or when the current media has poorly
+// aligned audio and video, which can cause values to be slightly off from what you would
+// expect. This value is what we consider to be safe to use in such comparisons to account
+// for these scenarios.
+var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
+var filterRanges = function filterRanges(timeRanges, predicate) {
+ var results = [];
+ var i = void 0;
+
+ if (timeRanges && timeRanges.length) {
+ // Search for ranges that match the predicate
+ for (i = 0; i < timeRanges.length; i++) {
+ if (predicate(timeRanges.start(i), timeRanges.end(i))) {
+ results.push([timeRanges.start(i), timeRanges.end(i)]);
+ }
+ }
+ }
+
+ return videojs$1.createTimeRanges(results);
+};
+
+/**
+ * Attempts to find the buffered TimeRange that contains the specified
+ * time.
+ * @param {TimeRanges} buffered - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object
+ */
+var findRange = function findRange(buffered, time) {
+ return filterRanges(buffered, function (start, end) {
+ return start - TIME_FUDGE_FACTOR <= time && end + TIME_FUDGE_FACTOR >= time;
+ });
+};
+
+/**
+ * Returns the TimeRanges that begin later than the specified time.
+ * @param {TimeRanges} timeRanges - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object.
+ */
+var findNextRange = function findNextRange(timeRanges, time) {
+ return filterRanges(timeRanges, function (start) {
+ return start - TIME_FUDGE_FACTOR >= time;
+ });
+};
+
+/**
+ * Returns gaps within a list of TimeRanges
+ * @param {TimeRanges} buffered - the TimeRanges object
+ * @return {TimeRanges} a TimeRanges object of gaps
+ */
+var findGaps = function findGaps(buffered) {
+ if (buffered.length < 2) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var ranges = [];
+
+ for (var i = 1; i < buffered.length; i++) {
+ var start = buffered.end(i - 1);
+ var end = buffered.start(i);
+
+ ranges.push([start, end]);
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+};
+
+/**
+ * Gets a human readable string for a TimeRange
+ *
+ * @param {TimeRange} range
+ * @returns {String} a human readable string
+ */
+var printableRange = function printableRange(range) {
+ var strArr = [];
+
+ if (!range || !range.length) {
+ return '';
+ }
+
+ for (var i = 0; i < range.length; i++) {
+ strArr.push(range.start(i) + ' => ' + range.end(i));
+ }
+
+ return strArr.join(', ');
+};
+
+/**
+ * Calculates the amount of time left in seconds until the player hits the end of the
+ * buffer and causes a rebuffer
+ *
+ * @param {TimeRange} buffered
+ * The state of the buffer
+ * @param {Numnber} currentTime
+ * The current time of the player
+ * @param {Number} playbackRate
+ * The current playback rate of the player. Defaults to 1.
+ * @return {Number}
+ * Time until the player has to start rebuffering in seconds.
+ * @function timeUntilRebuffer
+ */
+var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime) {
+ var playbackRate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
+
+ var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
+
+ return (bufferedEnd - currentTime) / playbackRate;
+};
+
+/**
+ * Converts a TimeRanges object into an array representation
+ * @param {TimeRanges} timeRanges
+ * @returns {Array}
+ */
+var timeRangesToArray = function timeRangesToArray(timeRanges) {
+ var timeRangesList = [];
+
+ for (var i = 0; i < timeRanges.length; i++) {
+ timeRangesList.push({
+ start: timeRanges.start(i),
+ end: timeRanges.end(i)
+ });
+ }
+
+ return timeRangesList;
+};
+
+/**
+ * @file create-text-tracks-if-necessary.js
+ */
+
+/**
+ * Create text tracks on video.js if they exist on a segment.
+ *
+ * @param {Object} sourceBuffer the VSB or FSB
+ * @param {Object} mediaSource the HTML media source
+ * @param {Object} segment the segment that may contain the text track
+ * @private
+ */
+var createTextTracksIfNecessary = function createTextTracksIfNecessary(sourceBuffer, mediaSource, segment) {
+ var player = mediaSource.player_;
+
+ // create an in-band caption track if one is present in the segment
+ if (segment.captions && segment.captions.length) {
+ if (!sourceBuffer.inbandTextTracks_) {
+ sourceBuffer.inbandTextTracks_ = {};
+ }
+
+ for (var trackId in segment.captionStreams) {
+ if (!sourceBuffer.inbandTextTracks_[trackId]) {
+ player.tech_.trigger({ type: 'usage', name: 'hls-608' });
+ var track = player.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ sourceBuffer.inbandTextTracks_[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ sourceBuffer.inbandTextTracks_[trackId] = player.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ }
+
+ if (segment.metadata && segment.metadata.length && !sourceBuffer.metadataTrack_) {
+ sourceBuffer.metadataTrack_ = player.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'Timed Metadata'
+ }, false).track;
+ sourceBuffer.metadataTrack_.inBandMetadataTrackDispatchType = segment.metadata.dispatchType;
+ }
+};
+
+/**
+ * @file remove-cues-from-track.js
+ */
+
+/**
+ * Remove cues from a track on video.js.
+ *
+ * @param {Double} start start of where we should remove the cue
+ * @param {Double} end end of where the we should remove the cue
+ * @param {Object} track the text track to remove the cues from
+ * @private
+ */
+var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {
+ var i = void 0;
+ var cue = void 0;
+
+ if (!track) {
+ return;
+ }
+
+ if (!track.cues) {
+ return;
+ }
+
+ i = track.cues.length;
+
+ while (i--) {
+ cue = track.cues[i];
+
+ // Remove any overlapping cue
+ if (cue.startTime <= end && cue.endTime >= start) {
+ track.removeCue(cue);
+ }
+ }
+};
+
+/**
+ * @file add-text-track-data.js
+ */
+/**
+ * Define properties on a cue for backwards compatability,
+ * but warn the user that the way that they are using it
+ * is depricated and will be removed at a later date.
+ *
+ * @param {Cue} cue the cue to add the properties on
+ * @private
+ */
+var deprecateOldCue = function deprecateOldCue(cue) {
+ Object.defineProperties(cue.frame, {
+ id: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
+ return cue.value.key;
+ }
+ },
+ value: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ },
+ privateData: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ }
+ });
+};
+
+var durationOfVideo = function durationOfVideo(duration) {
+ var dur = void 0;
+
+ if (isNaN(duration) || Math.abs(duration) === Infinity) {
+ dur = Number.MAX_VALUE;
+ } else {
+ dur = duration;
+ }
+ return dur;
+};
+/**
+ * Add text track data to a source handler given the captions and
+ * metadata from the buffer.
+ *
+ * @param {Object} sourceHandler the virtual source buffer
+ * @param {Array} captionArray an array of caption data
+ * @param {Array} metadataArray an array of meta data
+ * @private
+ */
+var addTextTrackData = function addTextTrackData(sourceHandler, captionArray, metadataArray) {
+ var Cue = window$1.WebKitDataCue || window$1.VTTCue;
+
+ if (captionArray) {
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+
+ this.inbandTextTracks_[track].addCue(new Cue(caption.startTime + this.timestampOffset, caption.endTime + this.timestampOffset, caption.text));
+ }, sourceHandler);
+ }
+
+ if (metadataArray) {
+ var videoDuration = durationOfVideo(sourceHandler.mediaSource_.duration);
+
+ metadataArray.forEach(function (metadata) {
+ var time = metadata.cueTime + this.timestampOffset;
+
+ metadata.frames.forEach(function (frame) {
+ var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
+
+ cue.frame = frame;
+ cue.value = frame;
+ deprecateOldCue(cue);
+
+ this.metadataTrack_.addCue(cue);
+ }, this);
+ }, sourceHandler);
+
+ // Updating the metadeta cues so that
+ // the endTime of each cue is the startTime of the next cue
+ // the endTime of last cue is the duration of the video
+ if (sourceHandler.metadataTrack_ && sourceHandler.metadataTrack_.cues && sourceHandler.metadataTrack_.cues.length) {
+ var cues = sourceHandler.metadataTrack_.cues;
+ var cuesArray = [];
+
+ // Create a copy of the TextTrackCueList...
+ // ...disregarding cues with a falsey value
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i]) {
+ cuesArray.push(cues[i]);
+ }
+ }
+
+ // Group cues by their startTime value
+ var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {
+ var timeSlot = obj[cue.startTime] || [];
+
+ timeSlot.push(cue);
+ obj[cue.startTime] = timeSlot;
+
+ return obj;
+ }, {});
+
+ // Sort startTimes by ascending order
+ var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {
+ return Number(a) - Number(b);
+ });
+
+ // Map each cue group's endTime to the next group's startTime
+ sortedStartTimes.forEach(function (startTime, idx) {
+ var cueGroup = cuesGroupedByStartTime[startTime];
+ var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration;
+
+ // Map each cue's endTime the next group's startTime
+ cueGroup.forEach(function (cue) {
+ cue.endTime = nextTime;
+ });
+ });
+ }
+ }
+};
+
+var win = typeof window !== 'undefined' ? window : {},
+ TARGET = typeof Symbol === 'undefined' ? '__target' : Symbol(),
+ SCRIPT_TYPE = 'application/javascript',
+ BlobBuilder = win.BlobBuilder || win.WebKitBlobBuilder || win.MozBlobBuilder || win.MSBlobBuilder,
+ URL = win.URL || win.webkitURL || URL && URL.msURL,
+ Worker = win.Worker;
+
+/**
+ * Returns a wrapper around Web Worker code that is constructible.
+ *
+ * @function shimWorker
+ *
+ * @param { String } filename The name of the file
+ * @param { Function } fn Function wrapping the code of the worker
+ */
+function shimWorker(filename, fn) {
+ return function ShimWorker(forceFallback) {
+ var o = this;
+
+ if (!fn) {
+ return new Worker(filename);
+ } else if (Worker && !forceFallback) {
+ // Convert the function's inner code to a string to construct the worker
+ var source = fn.toString().replace(/^function.+?{/, '').slice(0, -1),
+ objURL = createSourceObject(source);
+
+ this[TARGET] = new Worker(objURL);
+ wrapTerminate(this[TARGET], objURL);
+ return this[TARGET];
+ } else {
+ var selfShim = {
+ postMessage: function postMessage(m) {
+ if (o.onmessage) {
+ setTimeout(function () {
+ o.onmessage({ data: m, target: selfShim });
+ });
+ }
+ }
+ };
+
+ fn.call(selfShim);
+ this.postMessage = function (m) {
+ setTimeout(function () {
+ selfShim.onmessage({ data: m, target: o });
+ });
+ };
+ this.isThisThread = true;
+ }
+ };
+}
+// Test Worker capabilities
+if (Worker) {
+ var testWorker,
+ objURL = createSourceObject('self.onmessage = function () {}'),
+ testArray = new Uint8Array(1);
+
+ try {
+ testWorker = new Worker(objURL);
+
+ // Native browser on some Samsung devices throws for transferables, let's detect it
+ testWorker.postMessage(testArray, [testArray.buffer]);
+ } catch (e) {
+ Worker = null;
+ } finally {
+ URL.revokeObjectURL(objURL);
+ if (testWorker) {
+ testWorker.terminate();
+ }
+ }
+}
+
+function createSourceObject(str) {
+ try {
+ return URL.createObjectURL(new Blob([str], { type: SCRIPT_TYPE }));
+ } catch (e) {
+ var blob = new BlobBuilder();
+ blob.append(str);
+ return URL.createObjectURL(blob.getBlob(type));
+ }
+}
+
+function wrapTerminate(worker, objURL) {
+ if (!worker || !objURL) return;
+ var term = worker.terminate;
+ worker.objURL = objURL;
+ worker.terminate = function () {
+ if (worker.objURL) URL.revokeObjectURL(worker.objURL);
+ term.call(worker);
+ };
+}
+
+var TransmuxWorker = new shimWorker("./transmuxer-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var transmuxerWorker = function () {
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS;
+
+ // pre-calculate constants
+ (function () {
+ var i;
+ types = {
+ avc1: [], // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [], // codingname
+ mvex: [],
+ mvhd: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ };
+
+ // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length;
+
+ // calculate the total size we need to allocate
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4);
+
+ // copy the payload into the result
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]);
+
+ // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length;
+ // build traf boxes for each track fragment
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i;
+
+ // leave the full box header (4 bytes) all zero
+
+ // write the sample table
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i;
+
+ // assemble the SPSs
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ }
+
+ // assemble the PPSs
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ return box(types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length // numOfSequenceParameterSets
+ ]).concat(sequenceParameterSets).concat([pps.length // numOfPictureParameterSets
+ ]).concat(pictureParameterSets))), // "PPS"
+ box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
+ );
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([
+
+ // SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+
+ return box(types.tkhd, result);
+ };
+
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF]));
+
+ // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+
+ // audio tracks require less metadata
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ }
+
+ // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]);
+ // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader;
+
+ // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0;
+
+ // trun flag constants
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+
+ var toUnsigned = function toUnsigned(value) {
+ return value >>> 0;
+ };
+
+ var bin = {
+ toUnsigned: toUnsigned
+ };
+
+ var toUnsigned$1 = bin.toUnsigned;
+ var _findBox, parseType, timescale, startTime, getVideoTrackIds;
+
+ // Find the data for a box specified by its path
+ _findBox = function findBox(data, path) {
+ var results = [],
+ i,
+ size,
+ type,
+ end,
+ subresults;
+
+ if (!path.length) {
+ // short-circuit the search for empty paths
+ return null;
+ }
+
+ for (i = 0; i < data.byteLength;) {
+ size = toUnsigned$1(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+
+ type = parseType(data.subarray(i + 4, i + 8));
+
+ end = size > 1 ? i + size : data.byteLength;
+
+ if (type === path[0]) {
+ if (path.length === 1) {
+ // this is the end of the path and we've found the box we were
+ // looking for
+ results.push(data.subarray(i + 8, end));
+ } else {
+ // recursively search for the next box along the path
+ subresults = _findBox(data.subarray(i + 8, end), path.slice(1));
+ if (subresults.length) {
+ results = results.concat(subresults);
+ }
+ }
+ }
+ i = end;
+ }
+
+ // we've finished searching all of data
+ return results;
+ };
+
+ /**
+ * Returns the string representation of an ASCII encoded four byte buffer.
+ * @param buffer {Uint8Array} a four-byte buffer to translate
+ * @return {string} the corresponding string
+ */
+ parseType = function parseType(buffer) {
+ var result = '';
+ result += String.fromCharCode(buffer[0]);
+ result += String.fromCharCode(buffer[1]);
+ result += String.fromCharCode(buffer[2]);
+ result += String.fromCharCode(buffer[3]);
+ return result;
+ };
+
+ /**
+ * Parses an MP4 initialization segment and extracts the timescale
+ * values for any declared tracks. Timescale values indicate the
+ * number of clock ticks per second to assume for time-based values
+ * elsewhere in the MP4.
+ *
+ * To determine the start time of an MP4, you need two pieces of
+ * information: the timescale unit and the earliest base media decode
+ * time. Multiple timescales can be specified within an MP4 but the
+ * base media decode time is always expressed in the timescale from
+ * the media header box for the track:
+ * ```
+ * moov > trak > mdia > mdhd.timescale
+ * ```
+ * @param init {Uint8Array} the bytes of the init segment
+ * @return {object} a hash of track ids to timescale values or null if
+ * the init segment is malformed.
+ */
+ timescale = function timescale(init) {
+ var result = {},
+ traks = _findBox(init, ['moov', 'trak']);
+
+ // mdhd timescale
+ return traks.reduce(function (result, trak) {
+ var tkhd, version, index, id, mdhd;
+
+ tkhd = _findBox(trak, ['tkhd'])[0];
+ if (!tkhd) {
+ return null;
+ }
+ version = tkhd[0];
+ index = version === 0 ? 12 : 20;
+ id = toUnsigned$1(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+
+ mdhd = _findBox(trak, ['mdia', 'mdhd'])[0];
+ if (!mdhd) {
+ return null;
+ }
+ version = mdhd[0];
+ index = version === 0 ? 12 : 20;
+ result[id] = toUnsigned$1(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+ return result;
+ }, result);
+ };
+
+ /**
+ * Determine the base media decode start time, in seconds, for an MP4
+ * fragment. If multiple fragments are specified, the earliest time is
+ * returned.
+ *
+ * The base media decode time can be parsed from track fragment
+ * metadata:
+ * ```
+ * moof > traf > tfdt.baseMediaDecodeTime
+ * ```
+ * It requires the timescale value from the mdhd to interpret.
+ *
+ * @param timescale {object} a hash of track ids to timescale values.
+ * @return {number} the earliest base media decode start time for the
+ * fragment, in seconds
+ */
+ startTime = function startTime(timescale, fragment) {
+ var trafs, baseTimes, result;
+
+ // we need info from two childrend of each track fragment box
+ trafs = _findBox(fragment, ['moof', 'traf']);
+
+ // determine the start times for each track
+ baseTimes = [].concat.apply([], trafs.map(function (traf) {
+ return _findBox(traf, ['tfhd']).map(function (tfhd) {
+ var id, scale, baseTime;
+
+ // get the track id from the tfhd
+ id = toUnsigned$1(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]);
+ // assume a 90kHz clock if no timescale was specified
+ scale = timescale[id] || 90e3;
+
+ // get the base media decode time from the tfdt
+ baseTime = _findBox(traf, ['tfdt']).map(function (tfdt) {
+ var version, result;
+
+ version = tfdt[0];
+ result = toUnsigned$1(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);
+ if (version === 1) {
+ result *= Math.pow(2, 32);
+ result += toUnsigned$1(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);
+ }
+ return result;
+ })[0];
+ baseTime = baseTime || Infinity;
+
+ // convert base time to seconds
+ return baseTime / scale;
+ });
+ }));
+
+ // return the minimum
+ result = Math.min.apply(null, baseTimes);
+ return isFinite(result) ? result : 0;
+ };
+
+ /**
+ * Find the trackIds of the video tracks in this source.
+ * Found by parsing the Handler Reference and Track Header Boxes:
+ * moov > trak > mdia > hdlr
+ * moov > trak > tkhd
+ *
+ * @param {Uint8Array} init - The bytes of the init segment for this source
+ * @return {Number[]} A list of trackIds
+ *
+ * @see ISO-BMFF-12/2015, Section 8.4.3
+ **/
+ getVideoTrackIds = function getVideoTrackIds(init) {
+ var traks = _findBox(init, ['moov', 'trak']);
+ var videoTrackIds = [];
+
+ traks.forEach(function (trak) {
+ var hdlrs = _findBox(trak, ['mdia', 'hdlr']);
+ var tkhds = _findBox(trak, ['tkhd']);
+
+ hdlrs.forEach(function (hdlr, index) {
+ var handlerType = parseType(hdlr.subarray(8, 12));
+ var tkhd = tkhds[index];
+ var view;
+ var version;
+ var trackId;
+
+ if (handlerType === 'vide') {
+ view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+ version = view.getUint8(0);
+ trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+
+ videoTrackIds.push(trackId);
+ }
+ });
+ });
+
+ return videoTrackIds;
+ };
+
+ var probe = {
+ findBox: _findBox,
+ parseType: parseType,
+ timescale: timescale,
+ startTime: startTime,
+ videoTrackIds: getVideoTrackIds
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2014 Brightcove
+ * All rights reserved.
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+
+ var Stream = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+ this.off = function (type, listener) {
+ var index;
+ if (!listeners[type]) {
+ return false;
+ }
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+ Stream.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+
+ return destination;
+ };
+
+ // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+ Stream.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ var stream = Stream;
+
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = [];
+
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i];
+
+ // Split on 'aud'-type nal units
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ frames.push(currentFrame);
+ }
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ }
+
+ // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ }
+
+ // Push the final frame
+ frames.push(currentFrame);
+ return frames;
+ };
+
+ // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = [];
+
+ // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts;
+
+ // store some metadata about all the Gops
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+
+ // push the final Gop
+ gops.push(currentGop);
+ return gops;
+ };
+
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount;
+
+ // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ };
+
+ // generate the track's sample table from an array of gops
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ sample = sampleForFrame(currentFrame, dataOffset);
+
+ dataOffset += sample.size;
+
+ samples.push(sample);
+ }
+ }
+ return samples;
+ };
+
+ // generate the track's raw mdat data from an array of gops
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer);
+
+ // For each Gop..
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ // For each Frame..
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ // For each NAL..
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData
+ };
+
+ var ONE_SECOND_IN_TS = 90000; // 90kHz clock
+
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts;
+
+ // Optionally adjust the time so the first segment starts at zero.
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ }
+
+ // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime;
+
+ // Add to that the distance this segment is from the very first
+ baseMediaDecodeTime += minSegmentDts;
+
+ // baseMediaDecodeTime must not become negative
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0;
+
+ // go through the sei_rbsp parsing each each individual sei_message
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ }
+
+ // Parse payload type
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+ payloadType += bytes[i++];
+
+ // Parse payload size
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+ payloadSize += bytes[i++];
+
+ // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ }
+
+ // skip the payload and parse the next message
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ };
+
+ // see ANSI/SCTE 128-1 (2013), section 8.1
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ }
+
+ // itu_t_t35_provider_code should be 49 (ATSC) for captions
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ }
+
+ // the user_identifier should be "GA94" to indicate ATSC1 data
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ }
+
+ // finally, user_data_type_code should be 0x03 for caption data
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ }
+
+ // return the user_data_type_structure and strip the trailing
+ // marker bits
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ };
+
+ // see CEA-708-D, section 4.4
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data;
+
+ // if this is just filler, return immediately
+ if (!(userData[0] & 0x40)) {
+ return results;
+ }
+
+ // parse out the cc_data_1 and cc_data_2 fields
+ count = userData[0] & 0x1f;
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ };
+
+ // capture cc data when cc_valid is 1
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ // exports
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ };
+
+ // -----------------
+ // Link To Transport
+ // -----------------
+
+
+ var CaptionStream = function CaptionStream() {
+
+ CaptionStream.prototype.init.call(this);
+
+ this.captionPackets_ = [];
+
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+
+ this.reset();
+
+ // forward data and done events from CCs to this CaptionStream
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new stream();
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets;
+
+ // only examine SEI NALs
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ }
+
+ // parse the sei
+ sei = captionPacketParser.parseSei(event.escapedRBSP);
+
+ // ignore everything but user_data_registered_itu_t_t35
+ if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ }
+
+ // parse out the user data payload
+ userData = captionPacketParser.parseUserData(sei);
+
+ // ignore unrecognized userData
+ if (!userData) {
+ return;
+ }
+
+ // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+ return;
+ }
+
+ // parse out CC data packets and save them for later
+ newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flush = function () {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ }
+
+ // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ });
+
+ // sort caption byte-pairs based on their PTS values
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+ return a.pts - b.pts;
+ });
+
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ }
+ // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+ }, this);
+
+ this.captionPackets_.length = 0;
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ };
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, discard the
+ // data; we don't want jumbled captions
+ return;
+ }
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ // ----------------------
+ // Session to Application
+ // ----------------------
+
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1, // á
+ 0x5c: 0xe9, // é
+ 0x5e: 0xed, // í
+ 0x5f: 0xf3, // ó
+ 0x60: 0xfa, // ú
+ 0x7b: 0xe7, // ç
+ 0x7c: 0xf7, // ÷
+ 0x7d: 0xd1, // Ñ
+ 0x7e: 0xf1, // ñ
+ 0x7f: 0x2588, // █
+ 0x0130: 0xae, // ®
+ 0x0131: 0xb0, // °
+ 0x0132: 0xbd, // ½
+ 0x0133: 0xbf, // ¿
+ 0x0134: 0x2122, // ™
+ 0x0135: 0xa2, // ¢
+ 0x0136: 0xa3, // £
+ 0x0137: 0x266a, // ♪
+ 0x0138: 0xe0, // à
+ 0x0139: 0xa0, //
+ 0x013a: 0xe8, // è
+ 0x013b: 0xe2, // â
+ 0x013c: 0xea, // ê
+ 0x013d: 0xee, // î
+ 0x013e: 0xf4, // ô
+ 0x013f: 0xfb, // û
+ 0x0220: 0xc1, // Á
+ 0x0221: 0xc9, // É
+ 0x0222: 0xd3, // Ó
+ 0x0223: 0xda, // Ú
+ 0x0224: 0xdc, // Ü
+ 0x0225: 0xfc, // ü
+ 0x0226: 0x2018, // ‘
+ 0x0227: 0xa1, // ¡
+ 0x0228: 0x2a, // *
+ 0x0229: 0x27, // '
+ 0x022a: 0x2014, // —
+ 0x022b: 0xa9, // ©
+ 0x022c: 0x2120, // ℠
+ 0x022d: 0x2022, // •
+ 0x022e: 0x201c, // “
+ 0x022f: 0x201d, // ”
+ 0x0230: 0xc0, // À
+ 0x0231: 0xc2, // Â
+ 0x0232: 0xc7, // Ç
+ 0x0233: 0xc8, // È
+ 0x0234: 0xca, // Ê
+ 0x0235: 0xcb, // Ë
+ 0x0236: 0xeb, // ë
+ 0x0237: 0xce, // Î
+ 0x0238: 0xcf, // Ï
+ 0x0239: 0xef, // ï
+ 0x023a: 0xd4, // Ô
+ 0x023b: 0xd9, // Ù
+ 0x023c: 0xf9, // ù
+ 0x023d: 0xdb, // Û
+ 0x023e: 0xab, // «
+ 0x023f: 0xbb, // »
+ 0x0320: 0xc3, // Ã
+ 0x0321: 0xe3, // ã
+ 0x0322: 0xcd, // Í
+ 0x0323: 0xcc, // Ì
+ 0x0324: 0xec, // ì
+ 0x0325: 0xd2, // Ò
+ 0x0326: 0xf2, // ò
+ 0x0327: 0xd5, // Õ
+ 0x0328: 0xf5, // õ
+ 0x0329: 0x7b, // {
+ 0x032a: 0x7d, // }
+ 0x032b: 0x5c, // \
+ 0x032c: 0x5e, // ^
+ 0x032d: 0x5f, // _
+ 0x032e: 0x7c, // |
+ 0x032f: 0x7e, // ~
+ 0x0330: 0xc4, // Ä
+ 0x0331: 0xe4, // ä
+ 0x0332: 0xd6, // Ö
+ 0x0333: 0xf6, // ö
+ 0x0334: 0xdf, // ß
+ 0x0335: 0xa5, // ¥
+ 0x0336: 0xa4, // ¤
+ 0x0337: 0x2502, // │
+ 0x0338: 0xc5, // Å
+ 0x0339: 0xe5, // å
+ 0x033a: 0xd8, // Ø
+ 0x033b: 0xf8, // ø
+ 0x033c: 0x250c, // ┌
+ 0x033d: 0x2510, // ┐
+ 0x033e: 0x2514, // └
+ 0x033f: 0x2518 // ┘
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ };
+
+ // the index of the last row in a CEA-608 display buffer
+ var BOTTOM_ROW = 14;
+
+ // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420];
+
+ // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+ while (i--) {
+ result.push('');
+ }
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text;
+ // remove the parity bits
+ data = packet.ccData & 0x7f7f;
+
+ // ignore duplicate control codes; the spec demands they're sent twice
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ }
+
+ // Store control codes
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts);
+ // if a caption was being displayed, it's gone now
+ this.flushDisplayed(packet.pts);
+
+ // flip memory
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap;
+
+ // start measuring the time to display the caption
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts;
+
+ // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts);
+
+ // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ // Detect offset control codes and adjust cursor
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03;
+
+ // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20);
+
+ // Configure the caption window if we're in roll-up mode
+ if (this.mode_ === 'rollUp') {
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ }
+ // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ }
+
+ // We have a normal character in char0, and possibly one in char1
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+ };
+ };
+ Cea608Stream.prototype = new stream();
+ // Trigger a cue point that captures the current state of the
+ // display buffer
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_
+ // remove spaces from the start and end of the string
+ .map(function (row) {
+ return row.trim();
+ })
+ // combine all text rows to display in one cue
+ .join('\n')
+ // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn';
+ // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null;
+
+ // Track row and column for proper line-breaking and spacing
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2;
+
+ // This variable holds currently-applied formatting
+ this.formatting_ = [];
+ };
+
+ /**
+ * Sets up control code and related constants for this instance
+ */
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ }
+
+ // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+ this.PADDING_ = 0x0000;
+ // Pop-on Mode
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f;
+ // Roll-up Mode
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d;
+ // paint-on mode
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29;
+ // Erasure
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+ Cea608Stream.prototype.isNormalChar = function (char) {
+ return char >= 0x20 && char <= 0x7f;
+ };
+
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp';
+ // Spec says to wipe memories when switching to roll-up
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ };
+
+ // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ };
+
+ // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ };
+
+ // Mode Implementations
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_];
+
+ // buffer characters
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i;
+ // clear out inactive rows
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ }
+ // shift displayed rows up
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ }
+ // clear out the bottom row
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ // exports
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+
+ var MAX_TS = 8589934592;
+
+ var RO_THRESH = 4294967296;
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ }
+
+ // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+
+ TimestampRolloverStream.prototype.init.call(this);
+
+ this.type_ = type;
+
+ this.push = function (data) {
+ if (data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+
+ lastDTS = data.dts;
+
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+ };
+
+ TimestampRolloverStream.prototype = new stream();
+
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ // do not include the null terminator in the tag value
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+
+
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+
+
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+
+
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this);
+
+ // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+ this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ }
+
+ // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ }
+
+ // ignore events that don't look like ID3 data
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+ return;
+ }
+
+ // add this chunk to the data we've collected so far
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength;
+
+ // grab the size of the entire frame from the ID3 header
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10));
+
+ // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+ tagSize += 10;
+ }
+
+ // if the entire frame has not arrived, wait for more data
+ if (bufferSize < tagSize) {
+ return;
+ }
+
+ // collect the entire frame so it can be parsed
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ }
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14));
+
+ // clip any padding off the end
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame);
+
+ // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size;
+ // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+ this.trigger('timestamp', frame);
+ }
+ }
+ tag.frames.push(frame);
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+ this.trigger('data', tag);
+ };
+ };
+ _MetadataStream.prototype = new stream();
+
+ var metadataStream = _MetadataStream;
+
+ var TimestampRolloverStream$1 = timestampRolloverStream.TimestampRolloverStream;
+
+ // object types
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream;
+
+ // constants
+ var MP2T_PACKET_LENGTH = 188,
+
+
+ // bytes
+ SYNC_BYTE = 0x47;
+
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this);
+
+ // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ }
+
+ // While we have enough data for a packet
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ }
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+ this.trigger('done');
+ };
+ };
+ _TransportPacketStream.prototype = new stream();
+
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+ _TransportParseStream.prototype.init.call(this);
+ self = this;
+
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0;
+
+ // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+
+ // skip the PSI header and parse the first PMT entry
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset;
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(payload[5] & 0x01)) {
+ return;
+ }
+
+ // overwrite any existing program map table
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ };
+
+ // the mapping table ends at the end of the current section
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11];
+
+ // advance the offset to the first entry in the mapping table
+ offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2];
+
+ // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+ if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ }
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ }
+
+ // record the map on the packet as well
+ pmt.programMapTable = self.programMapTable;
+ };
+
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40);
+
+ // pid is a 13-bit field starting at the last bit of packet[1]
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2];
+
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ }
+
+ // parse the rest of the packet based on the type
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+
+ // if there are any packets waiting for a PMT to be found, process them now
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = streamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = streamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+
+ this.trigger('data', result);
+ };
+ };
+ _TransportParseStream.prototype = new stream();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+
+
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags;
+
+ // get the packet length, this will be 0 for video
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]);
+
+ // find out if this packets starts a new keyframe
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0;
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = payload[7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream$$1, type, forceFlush) {
+ var packetData = new Uint8Array(stream$$1.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment;
+
+ // do nothing if there is not enough buffered data for a complete
+ // PES header
+ if (!stream$$1.data.length || stream$$1.size < 9) {
+ return;
+ }
+ event.trackId = stream$$1.data[0].pid;
+
+ // reassemble the packet
+ for (i = 0; i < stream$$1.data.length; i++) {
+ fragment = stream$$1.data[i];
+
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ }
+
+ // parse assembled packet's PES header
+ parsePes(packetData, event);
+
+ // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+ packetFlushable = type === 'video' || event.packetLength <= stream$$1.size;
+
+ // flush pending packets if the conditions are right
+ if (forceFlush || packetFlushable) {
+ stream$$1.size = 0;
+ stream$$1.data.length = 0;
+ }
+
+ // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+ this.push = function (data) {
+ ({
+ pat: function pat() {
+ // we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream$$1, streamType;
+
+ switch (data.streamType) {
+ case streamTypes.H264_STREAM_TYPE:
+ case streamTypes.H264_STREAM_TYPE:
+ stream$$1 = video;
+ streamType = 'video';
+ break;
+ case streamTypes.ADTS_STREAM_TYPE:
+ stream$$1 = audio;
+ streamType = 'audio';
+ break;
+ case streamTypes.METADATA_STREAM_TYPE:
+ stream$$1 = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+ default:
+ // ignore unknown stream types
+ return;
+ }
+
+ // if a new packet is starting, we can flush the completed
+ // packet
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream$$1, streamType, true);
+ }
+
+ // buffer this fragment until we are sure we've received the
+ // complete payload
+ stream$$1.data.push(data);
+ stream$$1.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ },
+ programMapTable = data.programMapTable;
+
+ // translate audio and video streams to tracks
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+ this.flush = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ this.trigger('done');
+ };
+ };
+ _ElementaryStream.prototype = new stream();
+
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: captionStream.CaptionStream,
+ Cea608Stream: captionStream.Cea608Stream,
+ MetadataStream: metadataStream
+ };
+
+ for (var type in streamTypes) {
+ if (streamTypes.hasOwnProperty(type)) {
+ m2ts[type] = streamTypes[type];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+ _AdtsStream = function AdtsStream() {
+ var buffer;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameNum = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ }
+
+ // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ }
+
+ // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+ while (i + 5 < buffer.length) {
+
+ // Loook for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2;
+
+ // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * 90000 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+
+ frameEnd = i + frameLength;
+
+ // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+ if (buffer.byteLength < frameEnd) {
+ return;
+ }
+
+ // Otherwise, deliver the complete AAC frame
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+
+ // If the buffer is empty, clear it and return
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ }
+
+ frameNum++;
+
+ // Remove the finished frame from the buffer and start the process again
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+ this.flush = function () {
+ this.trigger('done');
+ };
+ };
+
+ _AdtsStream.prototype = new stream();
+
+ var adts = _AdtsStream;
+
+ var ExpGolomb;
+
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+ ExpGolomb = function ExpGolomb(workingData) {
+ var
+ // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+
+
+ // the current word being examined
+ workingWord = 0,
+
+
+ // :uint
+
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+
+ // ():uint
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ };
+
+ // ():uint
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ };
+
+ // ():void
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0);
+
+ // track the amount of workingData that has been processed
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ };
+
+ // (count:int):void
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+
+ this.loadWord();
+
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ };
+
+ // (size:int):uint
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+
+
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+ workingBitsAvailable -= bits;
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+ return valu;
+ };
+
+ // ():uint
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ }
+
+ // we exhausted workingWord and still have not found a 1
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ };
+
+ // ():void
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():void
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():uint
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+ return this.readBits(clz + 1) - 1;
+ };
+
+ // ():int
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ };
+
+ // Some convenience functions
+ // :Boolean
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ };
+
+ // ():int
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var _H264Stream, _NalByteStream;
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+ _NalByteStream.prototype.init.call(this);
+
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+
+ // advance the sync point to a NAL start, if necessary
+ for (; syncPoint < buffer.byteLength - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < buffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ }
+
+ // deliver the NAL unit if it isn't empty
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ }
+
+ // drop trailing zeroes
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < buffer.length);
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ }
+
+ // deliver the NAL unit
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ }
+ // filter out the NAL units that were delivered
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ }
+ // reset the stream state
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+ };
+ _NalByteStream.prototype = new stream();
+
+ // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+ self = this;
+
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+
+ nalByteStream.push(packet);
+ };
+
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ }
+ // This triggers data on the H264Stream
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+
+ expGolombDecoder = new expGolomb(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+
+ // some profiles have more optional data we don't need
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];break;
+ case 2:
+ sarRatio = [12, 11];break;
+ case 3:
+ sarRatio = [10, 11];break;
+ case 4:
+ sarRatio = [16, 11];break;
+ case 5:
+ sarRatio = [40, 33];break;
+ case 6:
+ sarRatio = [24, 11];break;
+ case 7:
+ sarRatio = [20, 11];break;
+ case 8:
+ sarRatio = [32, 11];break;
+ case 9:
+ sarRatio = [80, 33];break;
+ case 10:
+ sarRatio = [18, 11];break;
+ case 11:
+ sarRatio = [15, 11];break;
+ case 12:
+ sarRatio = [64, 33];break;
+ case 13:
+ sarRatio = [160, 99];break;
+ case 14:
+ sarRatio = [4, 3];break;
+ case 15:
+ sarRatio = [3, 2];break;
+ case 16:
+ sarRatio = [2, 1];break;
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
+ };
+ };
+ };
+ _H264Stream.prototype = new stream();
+
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+
+ // Constants
+ var _AacStream;
+
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.parseId3TagSize = function (header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ this.parseAdtsSize = function (header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ }
+
+ // check framesize
+ frameSize = this.parseId3TagSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if (everything[byteIndex] & 0xff === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = this.parseAdtsSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+ byteIndex++;
+ }
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+ };
+
+ _AacStream.prototype = new stream();
+
+ var aac = _AacStream;
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+ while (count--) {
+ a.push(0);
+ }
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ };
+
+ // Frames-of-silence to use for filling in missing AAC frames
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+
+ var silence = makeTable(coneOfSilence);
+
+ var ONE_SECOND_IN_TS$1 = 90000,
+
+
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS$1;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS$1;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+
+ var clock = {
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs
+ };
+
+ var H264Stream = h264.H264Stream;
+
+ // constants
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility'];
+
+ var ONE_SECOND_IN_TS$2 = 90000; // 90kHz clock
+
+ // object types
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+
+ // Helper functions
+ var isLikelyAacData, arrayEquals, sumFrameByteLengths;
+
+ isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+ arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ }
+
+ // compare the value of each element in the array
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+ sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0;
+
+ // sum the byteLength's all each nal unit in the frame
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ };
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ }
+
+ // buffer audio data until end() is called
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes;
+
+ // return early if no audio data has been observed
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = this.trimAdtsFramesByEarliestDts_(adtsFrames);
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.prefixWithSilence_(track, frames);
+
+ // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+ track.samples = this.generateSampleTable_(frames);
+
+ // concatenate the audio data to constuct the mdat
+ mdat = mp4Generator.mdat(this.concatenateFrameData_(frames));
+
+ adtsFrames = [];
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ trackDecodeInfo.clearDtsInfo(track);
+
+ this.trigger('data', { track: track, boxes: boxes });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+ this.prefixWithSilence_ = function (track, frames) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate);
+ // determine frame clock duration based on sample rate, round up to avoid overfills
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$2 / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime);
+ // number of full frames in the audio gap
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ }
+
+ // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+ if (audioFillFrameCount < 1 || audioFillDuration > ONE_SECOND_IN_TS$2 / 2) {
+ return;
+ }
+
+ silentFrame = silence[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ frames.splice(i, 0, {
+ data: silentFrame
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ };
+
+ // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+ this.trimAdtsFramesByEarliestDts_ = function (adtsFrames) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ }
+
+ // We will need to recalculate the earliest segment Dts
+ track.minSegmentDts = Infinity;
+
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ }
+ // Otherwise, discard it
+ return false;
+ });
+ };
+
+ // generate the track's raw mdat data from an array of frames
+ this.generateSampleTable_ = function (frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+ });
+ }
+ return samples;
+ };
+
+ // generate the track's sample table from an array of frames
+ this.concatenateFrameData_ = function (frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+ return data;
+ };
+ };
+
+ _AudioSegmentStream.prototype = new stream();
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+
+ this.gopCache_ = [];
+
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+ this.push = function (nalUnit) {
+ trackDecodeInfo.collectDtsInfo(track, nalUnit);
+
+ // record the track config
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ }
+
+ // buffer video until flush() is called
+ nalUnits.push(nalUnit);
+ };
+
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+ this.flush = function () {
+ var frames, gopForFusion, gops, moof, mdat, boxes;
+
+ // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+ nalUnits.shift();
+ }
+
+ // Return early if no video data has been observed
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+ frames = frameUtils.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils.groupFramesIntoGops(frames);
+
+ // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ gops.unshift(gopForFusion);
+ // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils.extendFirstKeyFrame(gops);
+ }
+ }
+
+ // Trim gops to align with gopsToAlignWith
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ // return early no gops can be aligned with desired gopsToAlignWith
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+ trackDecodeInfo.clearDtsInfo(track);
+
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo.collectDtsInfo(track, gops);
+
+ // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+ track.samples = frameUtils.generateSampleTable(gops);
+
+ // Concatenate the video data and construct the mdat
+ mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
+
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+
+ // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // Bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ this.trigger('data', { track: track, boxes: boxes });
+
+ this.resetStream_();
+
+ // Continue with the flush process now
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo.clearDtsInfo(track);
+
+ // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+ config = undefined;
+ pps = undefined;
+ };
+
+ // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+
+
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+
+
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i;
+
+ // Search for the GOP nearest to the beginning of this nal unit
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop;
+
+ // Reject Gops with different SPS or PPS
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ }
+
+ // Reject Gops that would require a negative baseMediaDecodeTime
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ }
+
+ // The distance between the end of the gop and the start of the nalUnit
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration;
+
+ // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+ return null;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ }
+
+ // current gop starts before the current gop we want to align on. so increment gop
+ // index
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, { byteLength: 0, duration: 0, nalCount: 0 });
+
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new stream();
+
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ */
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this);
+
+ // Take output from multiple
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ }
+ // buffer incoming id3 tags until the final flush
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ }
+
+ // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+ this.pendingTracks.push(output.track);
+ this.pendingBoxes.push(output.boxes);
+ this.pendingBytes += output.boxes.byteLength;
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ }
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new stream();
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+
+ initSegment = mp4Generator.initSegment(this.pendingTracks);
+
+ // Create a new typed array to hold the init segment
+ event.initSegment = new Uint8Array(initSegment.byteLength);
+
+ // Create an init segment containing a moov
+ // and track definitions
+ event.initSegment.set(initSegment);
+
+ // Create a new typed array to hold the moof+mdats
+ event.data = new Uint8Array(this.pendingBytes);
+
+ // Append each moof+mdat (one per track) together
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ }
+
+ // Translate caption PTS times into second offsets into the
+ // video timeline for the segment, and add track info
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = caption.startPts - timelineStartPts;
+ caption.startTime /= 90e3;
+ caption.endTime = caption.endPts - timelineStartPts;
+ caption.endTime /= 90e3;
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ }
+
+ // Translate ID3 frame PTS times into second offsets into the
+ // video timeline for the segment
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = id3.pts - timelineStartPts;
+ id3.cueTime /= 90e3;
+ event.metadata.push(id3);
+ }
+ // We add this to every single emitted segment even though we only need
+ // it for the first
+ event.metadata.dispatchType = this.metadataStream.dispatchType;
+
+ // Reset stream state
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0;
+
+ // Emit the built segment
+ this.trigger('data', event);
+
+ // Only emit `done` if all tracks have been flushed and emitted
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.aacStream = new aac();
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ };
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.packetStream = new m2ts_1.TransportPacketStream();
+ pipeline.parseStream = new m2ts_1.TransportParseStream();
+ pipeline.elementaryStream = new m2ts_1.ElementaryStream();
+ pipeline.videoTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('video');
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts_1.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream;
+
+ // disassemble MPEG2-TS packets into elementary streams
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream);
+
+ // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+ pipeline.elementaryStream.pipe(pipeline.videoTimestampRolloverStream).pipe(pipeline.h264Stream);
+ pipeline.elementaryStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+
+ pipeline.elementaryStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ // Hook up CEA-608/708 caption stream
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length;
+
+ // scan the tracks listed in the metadata
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ }
+
+ // hook up the video segment stream to the first track with h264 data
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo;
+ // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+
+ // Set up the final part of the video pipeline
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ // hook up the segment streams once track metadata is delivered
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(audioTrack);
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ pipeline.videoTimestampRolloverStream.discontinuity();
+ }
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.timedMetadataTimestampRolloverStream) {
+ pipeline.timedMetadataTimestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ };
+
+ // feed incoming data to the front of the parsing pipeline
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+ hasFlushed = false;
+ }
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ };
+
+ // flush any buffered data
+ this.flush = function () {
+ hasFlushed = true;
+ // Start at the top of the pipeline and flush all pending work
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ // Caption data has to be reset when seeking outside buffered range
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+ _Transmuxer.prototype = new stream();
+
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES
+ };
+
+ var inspectMp4,
+ _textifyMp,
+ parseType$1 = probe.parseType,
+ parseMp4Date = function parseMp4Date(seconds) {
+ return new Date(seconds * 1000 - 2082844800000);
+ },
+ parseSampleFlags = function parseSampleFlags(flags) {
+ return {
+ isLeading: (flags[0] & 0x0c) >>> 2,
+ dependsOn: flags[0] & 0x03,
+ isDependedOn: (flags[1] & 0xc0) >>> 6,
+ hasRedundancy: (flags[1] & 0x30) >>> 4,
+ paddingValue: (flags[1] & 0x0e) >>> 1,
+ isNonSyncSample: flags[1] & 0x01,
+ degradationPriority: flags[2] << 8 | flags[3]
+ };
+ },
+ nalParse = function nalParse(avcStream) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ i,
+ length;
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ result.push('<span style=\'color:red;\'>MALFORMED DATA</span>');
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x01:
+ result.push('slice_layer_without_partitioning_rbsp');
+ break;
+ case 0x05:
+ result.push('slice_layer_without_partitioning_rbsp_idr');
+ break;
+ case 0x06:
+ result.push('sei_rbsp');
+ break;
+ case 0x07:
+ result.push('seq_parameter_set_rbsp');
+ break;
+ case 0x08:
+ result.push('pic_parameter_set_rbsp');
+ break;
+ case 0x09:
+ result.push('access_unit_delimiter_rbsp');
+ break;
+ default:
+ result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F);
+ break;
+ }
+ }
+ return result;
+ },
+
+
+ // registry of handlers for individual mp4 box types
+ parse$$1 = {
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ avc1: function avc1(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ dataReferenceIndex: view.getUint16(6),
+ width: view.getUint16(24),
+ height: view.getUint16(26),
+ horizresolution: view.getUint16(28) + view.getUint16(30) / 16,
+ vertresolution: view.getUint16(32) + view.getUint16(34) / 16,
+ frameCount: view.getUint16(40),
+ depth: view.getUint16(74),
+ config: inspectMp4(data.subarray(78, data.byteLength))
+ };
+ },
+ avcC: function avcC(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ configurationVersion: data[0],
+ avcProfileIndication: data[1],
+ profileCompatibility: data[2],
+ avcLevelIndication: data[3],
+ lengthSizeMinusOne: data[4] & 0x03,
+ sps: [],
+ pps: []
+ },
+ numOfSequenceParameterSets = data[5] & 0x1f,
+ numOfPictureParameterSets,
+ nalSize,
+ offset,
+ i;
+
+ // iterate past any SPSs
+ offset = 6;
+ for (i = 0; i < numOfSequenceParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ // iterate past any PPSs
+ numOfPictureParameterSets = data[offset];
+ offset++;
+ for (i = 0; i < numOfPictureParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ return result;
+ },
+ btrt: function btrt(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ bufferSizeDB: view.getUint32(0),
+ maxBitrate: view.getUint32(4),
+ avgBitrate: view.getUint32(8)
+ };
+ },
+ esds: function esds(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ esId: data[6] << 8 | data[7],
+ streamPriority: data[8] & 0x1f,
+ decoderConfig: {
+ objectProfileIndication: data[11],
+ streamType: data[12] >>> 2 & 0x3f,
+ bufferSize: data[13] << 16 | data[14] << 8 | data[15],
+ maxBitrate: data[16] << 24 | data[17] << 16 | data[18] << 8 | data[19],
+ avgBitrate: data[20] << 24 | data[21] << 16 | data[22] << 8 | data[23],
+ decoderConfigDescriptor: {
+ tag: data[24],
+ length: data[25],
+ audioObjectType: data[26] >>> 3 & 0x1f,
+ samplingFrequencyIndex: (data[26] & 0x07) << 1 | data[27] >>> 7 & 0x01,
+ channelConfiguration: data[27] >>> 3 & 0x0f
+ }
+ }
+ };
+ },
+ ftyp: function ftyp(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ majorBrand: parseType$1(data.subarray(0, 4)),
+ minorVersion: view.getUint32(4),
+ compatibleBrands: []
+ },
+ i = 8;
+ while (i < data.byteLength) {
+ result.compatibleBrands.push(parseType$1(data.subarray(i, i + 4)));
+ i += 4;
+ }
+ return result;
+ },
+ dinf: function dinf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ dref: function dref(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ dataReferences: inspectMp4(data.subarray(8))
+ };
+ },
+ hdlr: function hdlr(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ handlerType: parseType$1(data.subarray(8, 12)),
+ name: ''
+ },
+ i = 8;
+
+ // parse out the name field
+ for (i = 24; i < data.byteLength; i++) {
+ if (data[i] === 0x00) {
+ // the name field is null-terminated
+ i++;
+ break;
+ }
+ result.name += String.fromCharCode(data[i]);
+ }
+ // decode UTF-8 to javascript's internal representation
+ // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ result.name = decodeURIComponent(escape(result.name));
+
+ return result;
+ },
+ mdat: function mdat(data) {
+ return {
+ byteLength: data.byteLength,
+ nals: nalParse(data)
+ };
+ },
+ mdhd: function mdhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ language,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ language: ''
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ // language is stored as an ISO-639-2/T code in an array of three 5-bit fields
+ // each field is the packed difference between its ASCII value and 0x60
+ language = view.getUint16(i);
+ result.language += String.fromCharCode((language >> 10) + 0x60);
+ result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60);
+ result.language += String.fromCharCode((language & 0x1f) + 0x60);
+
+ return result;
+ },
+ mdia: function mdia(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mfhd: function mfhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sequenceNumber: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ },
+ minf: function minf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ mp4a: function mp4a(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ // 6 bytes reserved
+ dataReferenceIndex: view.getUint16(6),
+ // 4 + 4 bytes reserved
+ channelcount: view.getUint16(16),
+ samplesize: view.getUint16(18),
+ // 2 bytes pre_defined
+ // 2 bytes reserved
+ samplerate: view.getUint16(24) + view.getUint16(26) / 65536
+ };
+
+ // if there are more bytes to process, assume this is an ISO/IEC
+ // 14496-14 MP4AudioSampleEntry and parse the ESDBox
+ if (data.byteLength > 28) {
+ result.streamDescriptor = inspectMp4(data.subarray(28))[0];
+ }
+ return result;
+ },
+ moof: function moof(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ moov: function moov(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvex: function mvex(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvhd: function mvhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+
+ // convert fixed-point, base 16 back to a number
+ result.rate = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ i += 2 * 4;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ i += 6 * 4;
+ result.nextTrackId = view.getUint32(i);
+ return result;
+ },
+ pdin: function pdin(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ rate: view.getUint32(4),
+ initialDelay: view.getUint32(8)
+ };
+ },
+ sdtp: function sdtp(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ i;
+
+ for (i = 4; i < data.byteLength; i++) {
+ result.samples.push({
+ dependsOn: (data[i] & 0x30) >> 4,
+ isDependedOn: (data[i] & 0x0c) >> 2,
+ hasRedundancy: data[i] & 0x03
+ });
+ }
+ return result;
+ },
+ sidx: function sidx(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ references: [],
+ referenceId: view.getUint32(4),
+ timescale: view.getUint32(8),
+ earliestPresentationTime: view.getUint32(12),
+ firstOffset: view.getUint32(16)
+ },
+ referenceCount = view.getUint16(22),
+ i;
+
+ for (i = 24; referenceCount; i += 12, referenceCount--) {
+ result.references.push({
+ referenceType: (data[i] & 0x80) >>> 7,
+ referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+ subsegmentDuration: view.getUint32(i + 4),
+ startsWithSap: !!(data[i + 8] & 0x80),
+ sapType: (data[i + 8] & 0x70) >>> 4,
+ sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+ });
+ }
+
+ return result;
+ },
+ smhd: function smhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ balance: data[4] + data[5] / 256
+ };
+ },
+ stbl: function stbl(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ stco: function stco(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ chunkOffsets: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+ for (i = 8; entryCount; i += 4, entryCount--) {
+ result.chunkOffsets.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stsc: function stsc(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ entryCount = view.getUint32(4),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleToChunks: []
+ },
+ i;
+ for (i = 8; entryCount; i += 12, entryCount--) {
+ result.sampleToChunks.push({
+ firstChunk: view.getUint32(i),
+ samplesPerChunk: view.getUint32(i + 4),
+ sampleDescriptionIndex: view.getUint32(i + 8)
+ });
+ }
+ return result;
+ },
+ stsd: function stsd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleDescriptions: inspectMp4(data.subarray(8))
+ };
+ },
+ stsz: function stsz(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleSize: view.getUint32(4),
+ entries: []
+ },
+ i;
+ for (i = 12; i < data.byteLength; i += 4) {
+ result.entries.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stts: function stts(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ timeToSamples: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+
+ for (i = 8; entryCount; i += 8, entryCount--) {
+ result.timeToSamples.push({
+ sampleCount: view.getUint32(i),
+ sampleDelta: view.getUint32(i + 4)
+ });
+ }
+ return result;
+ },
+ styp: function styp(data) {
+ return parse$$1.ftyp(data);
+ },
+ tfdt: function tfdt(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ baseMediaDecodeTime: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ if (result.version === 1) {
+ result.baseMediaDecodeTime *= Math.pow(2, 32);
+ result.baseMediaDecodeTime += data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11];
+ }
+ return result;
+ },
+ tfhd: function tfhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4)
+ },
+ baseDataOffsetPresent = result.flags[2] & 0x01,
+ sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+ defaultSampleDurationPresent = result.flags[2] & 0x08,
+ defaultSampleSizePresent = result.flags[2] & 0x10,
+ defaultSampleFlagsPresent = result.flags[2] & 0x20,
+ durationIsEmpty = result.flags[0] & 0x010000,
+ defaultBaseIsMoof = result.flags[0] & 0x020000,
+ i;
+
+ i = 8;
+ if (baseDataOffsetPresent) {
+ i += 4; // truncate top 4 bytes
+ // FIXME: should we read the full 64 bits?
+ result.baseDataOffset = view.getUint32(12);
+ i += 4;
+ }
+ if (sampleDescriptionIndexPresent) {
+ result.sampleDescriptionIndex = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleDurationPresent) {
+ result.defaultSampleDuration = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleSizePresent) {
+ result.defaultSampleSize = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleFlagsPresent) {
+ result.defaultSampleFlags = view.getUint32(i);
+ }
+ if (durationIsEmpty) {
+ result.durationIsEmpty = true;
+ }
+ if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+ result.baseDataOffsetIsMoof = true;
+ }
+ return result;
+ },
+ tkhd: function tkhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ i += 2 * 4;
+ result.layer = view.getUint16(i);
+ i += 2;
+ result.alternateGroup = view.getUint16(i);
+ i += 2;
+ // convert fixed-point, base 16 back to a number
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ result.width = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.height = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ return result;
+ },
+ traf: function traf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trak: function trak(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trex: function trex(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4),
+ defaultSampleDescriptionIndex: view.getUint32(8),
+ defaultSampleDuration: view.getUint32(12),
+ defaultSampleSize: view.getUint32(16),
+ sampleDependsOn: data[20] & 0x03,
+ sampleIsDependedOn: (data[21] & 0xc0) >> 6,
+ sampleHasRedundancy: (data[21] & 0x30) >> 4,
+ samplePaddingValue: (data[21] & 0x0e) >> 1,
+ sampleIsDifferenceSample: !!(data[21] & 0x01),
+ sampleDegradationPriority: view.getUint16(22)
+ };
+ },
+ trun: function trun(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+
+
+ // Flag interpretation
+ dataOffsetPresent = result.flags[2] & 0x01,
+
+
+ // compare with 2nd byte of 0x1
+ firstSampleFlagsPresent = result.flags[2] & 0x04,
+
+
+ // compare with 2nd byte of 0x4
+ sampleDurationPresent = result.flags[1] & 0x01,
+
+
+ // compare with 2nd byte of 0x100
+ sampleSizePresent = result.flags[1] & 0x02,
+
+
+ // compare with 2nd byte of 0x200
+ sampleFlagsPresent = result.flags[1] & 0x04,
+
+
+ // compare with 2nd byte of 0x400
+ sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+
+
+ // compare with 2nd byte of 0x800
+ sampleCount = view.getUint32(4),
+ offset = 8,
+ sample;
+
+ if (dataOffsetPresent) {
+ // 32 bit signed integer
+ result.dataOffset = view.getInt32(offset);
+ offset += 4;
+ }
+
+ // Overrides the flags for the first sample only. The order of
+ // optional values will be: duration, size, compositionTimeOffset
+ if (firstSampleFlagsPresent && sampleCount) {
+ sample = {
+ flags: parseSampleFlags(data.subarray(offset, offset + 4))
+ };
+ offset += 4;
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ sampleCount--;
+ }
+
+ while (sampleCount--) {
+ sample = {};
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleFlagsPresent) {
+ sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ }
+ return result;
+ },
+ 'url ': function url(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ },
+ vmhd: function vmhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ graphicsmode: view.getUint16(4),
+ opcolor: new Uint16Array([view.getUint16(6), view.getUint16(8), view.getUint16(10)])
+ };
+ }
+ };
+
+ /**
+ * Return a javascript array of box objects parsed from an ISO base
+ * media file.
+ * @param data {Uint8Array} the binary data of the media to be inspected
+ * @return {array} a javascript array of potentially nested box objects
+ */
+ inspectMp4 = function inspectMp4(data) {
+ var i = 0,
+ result = [],
+ view,
+ size,
+ type,
+ end,
+ box;
+
+ // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API
+ var ab = new ArrayBuffer(data.length);
+ var v = new Uint8Array(ab);
+ for (var z = 0; z < data.length; ++z) {
+ v[z] = data[z];
+ }
+ view = new DataView(ab);
+
+ while (i < data.byteLength) {
+ // parse box data
+ size = view.getUint32(i);
+ type = parseType$1(data.subarray(i + 4, i + 8));
+ end = size > 1 ? i + size : data.byteLength;
+
+ // parse type-specific data
+ box = (parse$$1[type] || function (data) {
+ return {
+ data: data
+ };
+ })(data.subarray(i + 8, end));
+ box.size = size;
+ box.type = type;
+
+ // store this box and move to the next
+ result.push(box);
+ i = end;
+ }
+ return result;
+ };
+
+ /**
+ * Returns a textual representation of the javascript represtentation
+ * of an MP4 file. You can use it as an alternative to
+ * JSON.stringify() to compare inspected MP4s.
+ * @param inspectedMp4 {array} the parsed array of boxes in an MP4
+ * file
+ * @param depth {number} (optional) the number of ancestor boxes of
+ * the elements of inspectedMp4. Assumed to be zero if unspecified.
+ * @return {string} a text representation of the parsed MP4
+ */
+ _textifyMp = function textifyMp4(inspectedMp4, depth) {
+ var indent;
+ depth = depth || 0;
+ indent = new Array(depth * 2 + 1).join(' ');
+
+ // iterate over all the boxes
+ return inspectedMp4.map(function (box, index) {
+
+ // list the box type first at the current indentation level
+ return indent + box.type + '\n' +
+
+ // the type is already included and handle child boxes separately
+ Object.keys(box).filter(function (key) {
+ return key !== 'type' && key !== 'boxes';
+
+ // output all the box properties
+ }).map(function (key) {
+ var prefix = indent + ' ' + key + ': ',
+ value = box[key];
+
+ // print out raw bytes as hexademical
+ if (value instanceof Uint8Array || value instanceof Uint32Array) {
+ var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)).map(function (byte) {
+ return ' ' + ('00' + byte.toString(16)).slice(-2);
+ }).join('').match(/.{1,24}/g);
+ if (!bytes) {
+ return prefix + '<>';
+ }
+ if (bytes.length === 1) {
+ return prefix + '<' + bytes.join('').slice(1) + '>';
+ }
+ return prefix + '<\n' + bytes.map(function (line) {
+ return indent + ' ' + line;
+ }).join('\n') + '\n' + indent + ' >';
+ }
+
+ // stringify generic objects
+ return prefix + JSON.stringify(value, null, 2).split('\n').map(function (line, index) {
+ if (index === 0) {
+ return line;
+ }
+ return indent + ' ' + line;
+ }).join('\n');
+ }).join('\n') + (
+
+ // recursively textify the child boxes
+ box.boxes ? '\n' + _textifyMp(box.boxes, depth + 1) : '');
+ }).join('\n');
+ };
+
+ var mp4Inspector = {
+ inspect: inspectMp4,
+ textify: _textifyMp,
+ parseTfdt: parse$$1.tfdt,
+ parseHdlr: parse$$1.hdlr,
+ parseTfhd: parse$$1.tfhd,
+ parseTrun: parse$$1.trun
+ };
+
+ var discardEmulationPreventionBytes$1 = captionPacketParser.discardEmulationPreventionBytes;
+ var CaptionStream$1 = captionStream.CaptionStream;
+
+ /**
+ * Maps an offset in the mdat to a sample based on the the size of the samples.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Number} offset - The offset into the mdat
+ * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+ * @return {?Object} The matching sample, or null if no match was found.
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var mapToSample = function mapToSample(offset, samples) {
+ var approximateOffset = offset;
+
+ for (var i = 0; i < samples.length; i++) {
+ var sample = samples[i];
+
+ if (approximateOffset < sample.size) {
+ return sample;
+ }
+
+ approximateOffset -= sample.size;
+ }
+
+ return null;
+ };
+
+ /**
+ * Finds SEI nal units contained in a Media Data Box.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Uint8Array} avcStream - The bytes of the mdat
+ * @param {Object[]} samples - The samples parsed out by `parseSamples`
+ * @param {Number} trackId - The trackId of this video track
+ * @return {Object[]} seiNals - the parsed SEI NALUs found.
+ * The contents of the seiNal should match what is expected by
+ * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+ *
+ * @see ISO-BMFF-12/2015, Section 8.1.1
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ **/
+ var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ seiNal,
+ i,
+ length,
+ lastMatchedSample;
+
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // Bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x06:
+ var data = avcStream.subarray(i + 1, i + 1 + length);
+ var matchingSample = mapToSample(i, samples);
+
+ seiNal = {
+ nalUnitType: 'sei_rbsp',
+ size: length,
+ data: data,
+ escapedRBSP: discardEmulationPreventionBytes$1(data),
+ trackId: trackId
+ };
+
+ if (matchingSample) {
+ seiNal.pts = matchingSample.pts;
+ seiNal.dts = matchingSample.dts;
+ lastMatchedSample = matchingSample;
+ } else {
+ // If a matching sample cannot be found, use the last
+ // sample's values as they should be as close as possible
+ seiNal.pts = lastMatchedSample.pts;
+ seiNal.dts = lastMatchedSample.dts;
+ }
+
+ result.push(seiNal);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ /**
+ * Parses sample information out of Track Run Boxes and calculates
+ * the absolute presentation and decode timestamps of each sample.
+ *
+ * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+ * @param {Number} baseMediaDecodeTime - base media decode time from tfdt
+ @see ISO-BMFF-12/2015, Section 8.8.12
+ * @param {Object} tfhd - The parsed Track Fragment Header
+ * @see inspect.parseTfhd
+ * @return {Object[]} the parsed samples
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
+ var currentDts = baseMediaDecodeTime;
+ var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+ var defaultSampleSize = tfhd.defaultSampleSize || 0;
+ var trackId = tfhd.trackId;
+ var allSamples = [];
+
+ truns.forEach(function (trun) {
+ // Note: We currently do not parse the sample table as well
+ // as the trun. It's possible some sources will require this.
+ // moov > trak > mdia > minf > stbl
+ var trackRun = mp4Inspector.parseTrun(trun);
+ var samples = trackRun.samples;
+
+ samples.forEach(function (sample) {
+ if (sample.duration === undefined) {
+ sample.duration = defaultSampleDuration;
+ }
+ if (sample.size === undefined) {
+ sample.size = defaultSampleSize;
+ }
+ sample.trackId = trackId;
+ sample.dts = currentDts;
+ if (sample.compositionTimeOffset === undefined) {
+ sample.compositionTimeOffset = 0;
+ }
+ sample.pts = currentDts + sample.compositionTimeOffset;
+
+ currentDts += sample.duration;
+ });
+
+ allSamples = allSamples.concat(samples);
+ });
+
+ return allSamples;
+ };
+
+ /**
+ * Parses out caption nals from an FMP4 segment's video tracks.
+ *
+ * @param {Uint8Array} segment - The bytes of a single segment
+ * @param {Number} videoTrackId - The trackId of a video track in the segment
+ * @return {Object.<Number, Object[]>} A mapping of video trackId to
+ * a list of seiNals found in that track
+ **/
+ var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
+ // To get the samples
+ var trafs = probe.findBox(segment, ['moof', 'traf']);
+ // To get SEI NAL units
+ var mdats = probe.findBox(segment, ['mdat']);
+ var captionNals = {};
+ var mdatTrafPairs = [];
+
+ // Pair up each traf with a mdat as moofs and mdats are in pairs
+ mdats.forEach(function (mdat, index) {
+ var matchingTraf = trafs[index];
+ mdatTrafPairs.push({
+ mdat: mdat,
+ traf: matchingTraf
+ });
+ });
+
+ mdatTrafPairs.forEach(function (pair) {
+ var mdat = pair.mdat;
+ var traf = pair.traf;
+ var tfhd = probe.findBox(traf, ['tfhd']);
+ // Exactly 1 tfhd per traf
+ var headerInfo = mp4Inspector.parseTfhd(tfhd[0]);
+ var trackId = headerInfo.trackId;
+ var tfdt = probe.findBox(traf, ['tfdt']);
+ // Either 0 or 1 tfdt per traf
+ var baseMediaDecodeTime = tfdt.length > 0 ? mp4Inspector.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
+ var truns = probe.findBox(traf, ['trun']);
+ var samples;
+ var seiNals;
+
+ // Only parse video data for the chosen video track
+ if (videoTrackId === trackId && truns.length > 0) {
+ samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+
+ seiNals = findSeiNals(mdat, samples, trackId);
+
+ if (!captionNals[trackId]) {
+ captionNals[trackId] = [];
+ }
+
+ captionNals[trackId] = captionNals[trackId].concat(seiNals);
+ }
+ });
+
+ return captionNals;
+ };
+
+ /**
+ * Parses out inband captions from an MP4 container and returns
+ * caption objects that can be used by WebVTT and the TextTrack API.
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+ * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number} trackId - The id of the video track to parse
+ * @param {Number} timescale - The timescale for the video track from the init segment
+ *
+ * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+ * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+ * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+ * @return {String} parsedCaptions[].text - The visible content of the caption
+ **/
+ var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
+ var seiNals;
+
+ if (!trackId) {
+ return null;
+ }
+
+ seiNals = parseCaptionNals(segment, trackId);
+
+ return {
+ seiNals: seiNals[trackId],
+ timescale: timescale
+ };
+ };
+
+ /**
+ * Converts SEI NALUs into captions that can be used by video.js
+ **/
+ var CaptionParser$$1 = function CaptionParser$$1() {
+ var isInitialized = false;
+ var captionStream$$1;
+
+ // Stores segments seen before trackId and timescale are set
+ var segmentCache;
+ // Stores video track ID of the track being parsed
+ var trackId;
+ // Stores the timescale of the track being parsed
+ var timescale;
+ // Stores captions parsed so far
+ var parsedCaptions;
+
+ /**
+ * A method to indicate whether a CaptionParser has been initalized
+ * @returns {Boolean}
+ **/
+ this.isInitialized = function () {
+ return isInitialized;
+ };
+
+ /**
+ * Initializes the underlying CaptionStream, SEI NAL parsing
+ * and management, and caption collection
+ **/
+ this.init = function () {
+ captionStream$$1 = new CaptionStream$1();
+ isInitialized = true;
+
+ // Collect dispatched captions
+ captionStream$$1.on('data', function (event) {
+ // Convert to seconds in the source's timescale
+ event.startTime = event.startPts / timescale;
+ event.endTime = event.endPts / timescale;
+
+ parsedCaptions.captions.push(event);
+ parsedCaptions.captionStreams[event.stream] = true;
+ });
+ };
+
+ /**
+ * Determines if a new video track will be selected
+ * or if the timescale changed
+ * @return {Boolean}
+ **/
+ this.isNewInit = function (videoTrackIds, timescales) {
+ if (videoTrackIds && videoTrackIds.length === 0 || timescales && (typeof timescales === 'undefined' ? 'undefined' : _typeof(timescales)) === 'object' && Object.keys(timescales).length === 0) {
+ return false;
+ }
+
+ return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+ };
+
+ /**
+ * Parses out SEI captions and interacts with underlying
+ * CaptionStream to return dispatched captions
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+ * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+ * @see parseEmbeddedCaptions
+ * @see m2ts/caption-stream.js
+ **/
+ this.parse = function (segment, videoTrackIds, timescales) {
+ var parsedData;
+
+ if (!this.isInitialized()) {
+ return null;
+
+ // This is not likely to be a video segment
+ } else if (!videoTrackIds || !timescales) {
+ return null;
+ } else if (this.isNewInit(videoTrackIds, timescales)) {
+ // Use the first video track only as there is no
+ // mechanism to switch to other video tracks
+ trackId = videoTrackIds[0];
+ timescale = timescales[trackId];
+
+ // If an init segment has not been seen yet, hold onto segment
+ // data until we have one
+ } else if (!trackId || !timescale) {
+ segmentCache.push(segment);
+ return null;
+ }
+
+ // Now that a timescale and trackId is set, parse cached segments
+ while (segmentCache.length > 0) {
+ var cachedSegment = segmentCache.shift();
+
+ this.parse(cachedSegment, videoTrackIds, timescales);
+ }
+
+ parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+
+ if (parsedData === null || !parsedData.seiNals) {
+ return null;
+ }
+
+ this.pushNals(parsedData.seiNals);
+ // Force the parsed captions to be dispatched
+ this.flushStream();
+
+ return parsedCaptions;
+ };
+
+ /**
+ * Pushes SEI NALUs onto CaptionStream
+ * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+ * Assumes that `parseCaptionNals` has been called first
+ * @see m2ts/caption-stream.js
+ **/
+ this.pushNals = function (nals) {
+ if (!this.isInitialized() || !nals || nals.length === 0) {
+ return null;
+ }
+
+ nals.forEach(function (nal) {
+ captionStream$$1.push(nal);
+ });
+ };
+
+ /**
+ * Flushes underlying CaptionStream to dispatch processed, displayable captions
+ * @see m2ts/caption-stream.js
+ **/
+ this.flushStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.flush();
+ };
+
+ /**
+ * Reset caption buckets for new data
+ **/
+ this.clearParsedCaptions = function () {
+ parsedCaptions.captions = [];
+ parsedCaptions.captionStreams = {};
+ };
+
+ /**
+ * Resets underlying CaptionStream
+ * @see m2ts/caption-stream.js
+ **/
+ this.resetCaptionStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.reset();
+ };
+
+ /**
+ * Convenience method to clear all captions flushed from the
+ * CaptionStream and still being parsed
+ * @see m2ts/caption-stream.js
+ **/
+ this.clearAllCaptions = function () {
+ this.clearParsedCaptions();
+ this.resetCaptionStream();
+ };
+
+ /**
+ * Reset caption parser
+ **/
+ this.reset = function () {
+ segmentCache = [];
+ trackId = null;
+ timescale = null;
+
+ if (!parsedCaptions) {
+ parsedCaptions = {
+ captions: [],
+ // CC1, CC2, CC3, CC4
+ captionStreams: {}
+ };
+ } else {
+ this.clearParsedCaptions();
+ }
+
+ this.resetCaptionStream();
+ };
+
+ this.reset();
+ };
+
+ var captionParser = CaptionParser$$1;
+
+ var mp4$$1 = {
+ generator: mp4Generator,
+ probe: probe,
+ Transmuxer: transmuxer.Transmuxer,
+ AudioSegmentStream: transmuxer.AudioSegmentStream,
+ VideoSegmentStream: transmuxer.VideoSegmentStream,
+ CaptionParser: captionParser
+ };
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ /**
+ * @file transmuxer-worker.js
+ */
+
+ /**
+ * Re-emits transmuxer events by converting them into messages to the
+ * world outside the worker.
+ *
+ * @param {Object} transmuxer the transmuxer to wire events on
+ * @private
+ */
+ var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {
+ transmuxer.on('data', function (segment) {
+ // transfer ownership of the underlying ArrayBuffer
+ // instead of doing a copy to save memory
+ // ArrayBuffers are transferable but generic TypedArrays are not
+ // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
+ var initArray = segment.initSegment;
+
+ segment.initSegment = {
+ data: initArray.buffer,
+ byteOffset: initArray.byteOffset,
+ byteLength: initArray.byteLength
+ };
+
+ var typedArray = segment.data;
+
+ segment.data = typedArray.buffer;
+ self.postMessage({
+ action: 'data',
+ segment: segment,
+ byteOffset: typedArray.byteOffset,
+ byteLength: typedArray.byteLength
+ }, [segment.data]);
+ });
+
+ if (transmuxer.captionStream) {
+ transmuxer.captionStream.on('data', function (caption) {
+ self.postMessage({
+ action: 'caption',
+ data: caption
+ });
+ });
+ }
+
+ transmuxer.on('done', function (data) {
+ self.postMessage({ action: 'done' });
+ });
+
+ transmuxer.on('gopInfo', function (gopInfo) {
+ self.postMessage({
+ action: 'gopInfo',
+ gopInfo: gopInfo
+ });
+ });
+ };
+
+ /**
+ * All incoming messages route through this hash. If no function exists
+ * to handle an incoming message, then we ignore the message.
+ *
+ * @class MessageHandlers
+ * @param {Object} options the options to initialize with
+ */
+
+ var MessageHandlers = function () {
+ function MessageHandlers(self, options) {
+ classCallCheck$$1(this, MessageHandlers);
+
+ this.options = options || {};
+ this.self = self;
+ this.init();
+ }
+
+ /**
+ * initialize our web worker and wire all the events.
+ */
+
+ createClass$$1(MessageHandlers, [{
+ key: 'init',
+ value: function init() {
+ if (this.transmuxer) {
+ this.transmuxer.dispose();
+ }
+ this.transmuxer = new mp4$$1.Transmuxer(this.options);
+ wireTransmuxerEvents(this.self, this.transmuxer);
+ }
+
+ /**
+ * Adds data (a ts segment) to the start of the transmuxer pipeline for
+ * processing.
+ *
+ * @param {ArrayBuffer} data data to push into the muxer
+ */
+
+ }, {
+ key: 'push',
+ value: function push(data) {
+ // Cast array buffer to correct type for transmuxer
+ var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+
+ this.transmuxer.push(segment);
+ }
+
+ /**
+ * Recreate the transmuxer so that the next segment added via `push`
+ * start with a fresh transmuxer.
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.init();
+ }
+
+ /**
+ * Set the value that will be used as the `baseMediaDecodeTime` time for the
+ * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
+ * set relative to the first based on the PTS values.
+ *
+ * @param {Object} data used to set the timestamp offset in the muxer
+ */
+
+ }, {
+ key: 'setTimestampOffset',
+ value: function setTimestampOffset(data) {
+ var timestampOffset = data.timestampOffset || 0;
+
+ this.transmuxer.setBaseMediaDecodeTime(Math.round(timestampOffset * 90000));
+ }
+ }, {
+ key: 'setAudioAppendStart',
+ value: function setAudioAppendStart(data) {
+ this.transmuxer.setAudioAppendStart(Math.ceil(data.appendStart * 90000));
+ }
+
+ /**
+ * Forces the pipeline to finish processing the last segment and emit it's
+ * results.
+ *
+ * @param {Object} data event data, not really used
+ */
+
+ }, {
+ key: 'flush',
+ value: function flush(data) {
+ this.transmuxer.flush();
+ }
+ }, {
+ key: 'resetCaptions',
+ value: function resetCaptions() {
+ this.transmuxer.resetCaptions();
+ }
+ }, {
+ key: 'alignGopsWith',
+ value: function alignGopsWith(data) {
+ this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
+ }
+ }]);
+ return MessageHandlers;
+ }();
+
+ /**
+ * Our web wroker interface so that things can talk to mux.js
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self the scope for the web worker
+ */
+
+ var TransmuxerWorker = function TransmuxerWorker(self) {
+ self.onmessage = function (event) {
+ if (event.data.action === 'init' && event.data.options) {
+ this.messageHandlers = new MessageHandlers(self, event.data.options);
+ return;
+ }
+
+ if (!this.messageHandlers) {
+ this.messageHandlers = new MessageHandlers(self);
+ }
+
+ if (event.data && event.data.action && event.data.action !== 'init') {
+ if (this.messageHandlers[event.data.action]) {
+ this.messageHandlers[event.data.action](event.data);
+ }
+ }
+ };
+ };
+
+ var transmuxerWorker = new TransmuxerWorker(self);
+
+ return transmuxerWorker;
+ }();
+});
+
+/**
+ * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
+ * codec strings, or translating codec strings into objects that can be examined.
+ */
+
+// Default codec parameters if none were provided for video and/or audio
+var defaultCodecs = {
+ videoCodec: 'avc1',
+ videoObjectTypeIndicator: '.4d400d',
+ // AAC-LC
+ audioProfile: '2'
+};
+
+/**
+ * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
+ * `avc1.<hhhhhh>`
+ *
+ * @param {Array} codecs an array of codec strings to fix
+ * @return {Array} the translated codec array
+ * @private
+ */
+var translateLegacyCodecs = function translateLegacyCodecs(codecs) {
+ return codecs.map(function (codec) {
+ return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
+ var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
+ var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
+
+ return 'avc1.' + profileHex + '00' + avcLevelHex;
+ });
+ });
+};
+
+/**
+ * Parses a codec string to retrieve the number of codecs specified,
+ * the video codec and object type indicator, and the audio profile.
+ */
+
+var parseCodecs = function parseCodecs() {
+ var codecs = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var result = {
+ codecCount: 0
+ };
+ var parsed = void 0;
+
+ result.codecCount = codecs.split(',').length;
+ result.codecCount = result.codecCount || 2;
+
+ // parse the video codec
+ parsed = /(^|\s|,)+(avc[13])([^ ,]*)/i.exec(codecs);
+ if (parsed) {
+ result.videoCodec = parsed[2];
+ result.videoObjectTypeIndicator = parsed[3];
+ }
+
+ // parse the last field of the audio codec
+ result.audioProfile = /(^|\s|,)+mp4a.[0-9A-Fa-f]+\.([0-9A-Fa-f]+)/i.exec(codecs);
+ result.audioProfile = result.audioProfile && result.audioProfile[2];
+
+ return result;
+};
+
+/**
+ * Replace codecs in the codec string with the old apple-style `avc1.<dd>.<dd>` to the
+ * standard `avc1.<hhhhhh>`.
+ *
+ * @param codecString {String} the codec string
+ * @return {String} the codec string with old apple-style codecs replaced
+ *
+ * @private
+ */
+var mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {
+ return codecString.replace(/avc1\.(\d+)\.(\d+)/i, function (match) {
+ return translateLegacyCodecs([match])[0];
+ });
+};
+
+/**
+ * Build a media mime-type string from a set of parameters
+ * @param {String} type either 'audio' or 'video'
+ * @param {String} container either 'mp2t' or 'mp4'
+ * @param {Array} codecs an array of codec strings to add
+ * @return {String} a valid media mime-type
+ */
+var makeMimeTypeString = function makeMimeTypeString(type, container, codecs) {
+ // The codecs array is filtered so that falsey values are
+ // dropped and don't cause Array#join to create spurious
+ // commas
+ return type + '/' + container + '; codecs="' + codecs.filter(function (c) {
+ return !!c;
+ }).join(', ') + '"';
+};
+
+/**
+ * Returns the type container based on information in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {String} a valid media container type
+ */
+var getContainerType = function getContainerType(media) {
+ // An initialization segment means the media playlist is an iframe
+ // playlist or is using the mp4 container. We don't currently
+ // support iframe playlists, so assume this is signalling mp4
+ // fragments.
+ if (media.segments && media.segments.length && media.segments[0].map) {
+ return 'mp4';
+ }
+ return 'mp2t';
+};
+
+/**
+ * Returns a set of codec strings parsed from the playlist or the default
+ * codec strings if no codecs were specified in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {Object} an object with the video and audio codecs
+ */
+var getCodecs = function getCodecs(media) {
+ // if the codecs were explicitly specified, use them instead of the
+ // defaults
+ var mediaAttributes = media.attributes || {};
+
+ if (mediaAttributes.CODECS) {
+ return parseCodecs(mediaAttributes.CODECS);
+ }
+ return defaultCodecs;
+};
+
+var audioProfileFromDefault = function audioProfileFromDefault(master, audioGroupId) {
+ if (!master.mediaGroups.AUDIO || !audioGroupId) {
+ return null;
+ }
+
+ var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
+
+ if (!audioGroup) {
+ return null;
+ }
+
+ for (var name in audioGroup) {
+ var audioType = audioGroup[name];
+
+ if (audioType.default && audioType.playlists) {
+ // codec should be the same for all playlists within the audio type
+ return parseCodecs(audioType.playlists[0].attributes.CODECS).audioProfile;
+ }
+ }
+
+ return null;
+};
+
+/**
+ * Calculates the MIME type strings for a working configuration of
+ * SourceBuffers to play variant streams in a master playlist. If
+ * there is no possible working configuration, an empty array will be
+ * returned.
+ *
+ * @param master {Object} the m3u8 object for the master playlist
+ * @param media {Object} the m3u8 object for the variant playlist
+ * @return {Array} the MIME type strings. If the array has more than
+ * one entry, the first element should be applied to the video
+ * SourceBuffer and the second to the audio SourceBuffer.
+ *
+ * @private
+ */
+var mimeTypesForPlaylist = function mimeTypesForPlaylist(master, media) {
+ var containerType = getContainerType(media);
+ var codecInfo = getCodecs(media);
+ var mediaAttributes = media.attributes || {};
+ // Default condition for a traditional HLS (no demuxed audio/video)
+ var isMuxed = true;
+ var isMaat = false;
+
+ if (!media) {
+ // Not enough information
+ return [];
+ }
+
+ if (master.mediaGroups.AUDIO && mediaAttributes.AUDIO) {
+ var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+
+ // Handle the case where we are in a multiple-audio track scenario
+ if (audioGroup) {
+ isMaat = true;
+ // Start with the everything demuxed then...
+ isMuxed = false;
+ // ...check to see if any audio group tracks are muxed (ie. lacking a uri)
+ for (var groupId in audioGroup) {
+ // either a uri is present (if the case of HLS and an external playlist), or
+ // playlists is present (in the case of DASH where we don't have external audio
+ // playlists)
+ if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+ isMuxed = true;
+ break;
+ }
+ }
+ }
+ }
+
+ // HLS with multiple-audio tracks must always get an audio codec.
+ // Put another way, there is no way to have a video-only multiple-audio HLS!
+ if (isMaat && !codecInfo.audioProfile) {
+ if (!isMuxed) {
+ // It is possible for codecs to be specified on the audio media group playlist but
+ // not on the rendition playlist. This is mostly the case for DASH, where audio and
+ // video are always separate (and separately specified).
+ codecInfo.audioProfile = audioProfileFromDefault(master, mediaAttributes.AUDIO);
+ }
+
+ if (!codecInfo.audioProfile) {
+ videojs$1.log.warn('Multiple audio tracks present but no audio codec string is specified. ' + 'Attempting to use the default audio codec (mp4a.40.2)');
+ codecInfo.audioProfile = defaultCodecs.audioProfile;
+ }
+ }
+
+ // Generate the final codec strings from the codec object generated above
+ var codecStrings = {};
+
+ if (codecInfo.videoCodec) {
+ codecStrings.video = '' + codecInfo.videoCodec + codecInfo.videoObjectTypeIndicator;
+ }
+
+ if (codecInfo.audioProfile) {
+ codecStrings.audio = 'mp4a.40.' + codecInfo.audioProfile;
+ }
+
+ // Finally, make and return an array with proper mime-types depending on
+ // the configuration
+ var justAudio = makeMimeTypeString('audio', containerType, [codecStrings.audio]);
+ var justVideo = makeMimeTypeString('video', containerType, [codecStrings.video]);
+ var bothVideoAudio = makeMimeTypeString('video', containerType, [codecStrings.video, codecStrings.audio]);
+
+ if (isMaat) {
+ if (!isMuxed && codecStrings.video) {
+ return [justVideo, justAudio];
+ }
+
+ if (!isMuxed && !codecStrings.video) {
+ // There is no muxed content and no video codec string, so this is an audio only
+ // stream with alternate audio.
+ return [justAudio, justAudio];
+ }
+
+ // There exists the possiblity that this will return a `video/container`
+ // mime-type for the first entry in the array even when there is only audio.
+ // This doesn't appear to be a problem and simplifies the code.
+ return [bothVideoAudio, justAudio];
+ }
+
+ // If there is no video codec at all, always just return a single
+ // audio/<container> mime-type
+ if (!codecStrings.video) {
+ return [justAudio];
+ }
+
+ // When not using separate audio media groups, audio and video is
+ // *always* muxed
+ return [bothVideoAudio];
+};
+
+/**
+ * Parse a content type header into a type and parameters
+ * object
+ *
+ * @param {String} type the content type header
+ * @return {Object} the parsed content-type
+ * @private
+ */
+var parseContentType = function parseContentType(type) {
+ var object = { type: '', parameters: {} };
+ var parameters = type.trim().split(';');
+
+ // first parameter should always be content-type
+ object.type = parameters.shift().trim();
+ parameters.forEach(function (parameter) {
+ var pair = parameter.trim().split('=');
+
+ if (pair.length > 1) {
+ var name = pair[0].replace(/"/g, '').trim();
+ var value = pair[1].replace(/"/g, '').trim();
+
+ object.parameters[name] = value;
+ }
+ });
+
+ return object;
+};
+
+/**
+ * Check if a codec string refers to an audio codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is an audio codec
+ * @private
+ */
+var isAudioCodec = function isAudioCodec(codec) {
+ return (/mp4a\.\d+.\d+/i.test(codec)
+ );
+};
+
+/**
+ * Check if a codec string refers to a video codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is a video codec
+ * @private
+ */
+var isVideoCodec = function isVideoCodec(codec) {
+ return (/avc1\.[\da-f]+/i.test(codec)
+ );
+};
+
+/**
+ * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
+ * front of current time.
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Number} currentTime
+ * The current time
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ * @return {Array}
+ * List of gops considered safe to append over
+ */
+var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {
+ if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
+ return [];
+ }
+
+ // pts value for current time + 3 seconds to give a bit more wiggle room
+ var currentTimePts = Math.ceil((currentTime - mapping + 3) * 90000);
+
+ var i = void 0;
+
+ for (i = 0; i < buffer.length; i++) {
+ if (buffer[i].pts > currentTimePts) {
+ break;
+ }
+ }
+
+ return buffer.slice(i);
+};
+
+/**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Array} gops
+ * List of new gop information
+ * @param {boolean} replace
+ * If true, replace the buffer with the new gop information. If false, append the
+ * new gop information to the buffer in the right location of time.
+ * @return {Array}
+ * Updated list of gop information
+ */
+var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {
+ if (!gops.length) {
+ return buffer;
+ }
+
+ if (replace) {
+ // If we are in safe append mode, then completely overwrite the gop buffer
+ // with the most recent appeneded data. This will make sure that when appending
+ // future segments, we only try to align with gops that are both ahead of current
+ // time and in the last segment appended.
+ return gops.slice();
+ }
+
+ var start = gops[0].pts;
+
+ var i = 0;
+
+ for (i; i < buffer.length; i++) {
+ if (buffer[i].pts >= start) {
+ break;
+ }
+ }
+
+ return buffer.slice(0, i).concat(gops);
+};
+
+/**
+ * Removes gop information in buffer that overlaps with provided start and end
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Double} start
+ * position to start the remove at
+ * @param {Double} end
+ * position to end the remove at
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ */
+var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {
+ var startPts = Math.ceil((start - mapping) * 90000);
+ var endPts = Math.ceil((end - mapping) * 90000);
+ var updatedBuffer = buffer.slice();
+
+ var i = buffer.length;
+
+ while (i--) {
+ if (buffer[i].pts <= endPts) {
+ break;
+ }
+ }
+
+ if (i === -1) {
+ // no removal because end of remove range is before start of buffer
+ return updatedBuffer;
+ }
+
+ var j = i + 1;
+
+ while (j--) {
+ if (buffer[j].pts <= startPts) {
+ break;
+ }
+ }
+
+ // clamp remove range start to 0 index
+ j = Math.max(j, 0);
+
+ updatedBuffer.splice(j, i - j + 1);
+
+ return updatedBuffer;
+};
+
+var buffered = function buffered(videoBuffer, audioBuffer, audioDisabled) {
+ var start = null;
+ var end = null;
+ var arity = 0;
+ var extents = [];
+ var ranges = [];
+
+ // neither buffer has been created yet
+ if (!videoBuffer && !audioBuffer) {
+ return videojs$1.createTimeRange();
+ }
+
+ // only one buffer is configured
+ if (!videoBuffer) {
+ return audioBuffer.buffered;
+ }
+ if (!audioBuffer) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are configured
+ if (audioDisabled) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are empty
+ if (videoBuffer.buffered.length === 0 && audioBuffer.buffered.length === 0) {
+ return videojs$1.createTimeRange();
+ }
+
+ // Handle the case where we have both buffers and create an
+ // intersection of the two
+ var videoBuffered = videoBuffer.buffered;
+ var audioBuffered = audioBuffer.buffered;
+ var count = videoBuffered.length;
+
+ // A) Gather up all start and end times
+ while (count--) {
+ extents.push({ time: videoBuffered.start(count), type: 'start' });
+ extents.push({ time: videoBuffered.end(count), type: 'end' });
+ }
+ count = audioBuffered.length;
+ while (count--) {
+ extents.push({ time: audioBuffered.start(count), type: 'start' });
+ extents.push({ time: audioBuffered.end(count), type: 'end' });
+ }
+ // B) Sort them by time
+ extents.sort(function (a, b) {
+ return a.time - b.time;
+ });
+
+ // C) Go along one by one incrementing arity for start and decrementing
+ // arity for ends
+ for (count = 0; count < extents.length; count++) {
+ if (extents[count].type === 'start') {
+ arity++;
+
+ // D) If arity is ever incremented to 2 we are entering an
+ // overlapping range
+ if (arity === 2) {
+ start = extents[count].time;
+ }
+ } else if (extents[count].type === 'end') {
+ arity--;
+
+ // E) If arity is ever decremented to 1 we leaving an
+ // overlapping range
+ if (arity === 1) {
+ end = extents[count].time;
+ }
+ }
+
+ // F) Record overlapping ranges
+ if (start !== null && end !== null) {
+ ranges.push([start, end]);
+ start = null;
+ end = null;
+ }
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+};
+
+/**
+ * @file virtual-source-buffer.js
+ */
+
+// We create a wrapper around the SourceBuffer so that we can manage the
+// state of the `updating` property manually. We have to do this because
+// Firefox changes `updating` to false long before triggering `updateend`
+// events and that was causing strange problems in videojs-contrib-hls
+var makeWrappedSourceBuffer = function makeWrappedSourceBuffer(mediaSource, mimeType) {
+ var sourceBuffer = mediaSource.addSourceBuffer(mimeType);
+ var wrapper = Object.create(null);
+
+ wrapper.updating = false;
+ wrapper.realBuffer_ = sourceBuffer;
+
+ var _loop = function _loop(key) {
+ if (typeof sourceBuffer[key] === 'function') {
+ wrapper[key] = function () {
+ return sourceBuffer[key].apply(sourceBuffer, arguments);
+ };
+ } else if (typeof wrapper[key] === 'undefined') {
+ Object.defineProperty(wrapper, key, {
+ get: function get$$1() {
+ return sourceBuffer[key];
+ },
+ set: function set$$1(v) {
+ return sourceBuffer[key] = v;
+ }
+ });
+ }
+ };
+
+ for (var key in sourceBuffer) {
+ _loop(key);
+ }
+
+ return wrapper;
+};
+
+/**
+ * VirtualSourceBuffers exist so that we can transmux non native formats
+ * into a native format, but keep the same api as a native source buffer.
+ * It creates a transmuxer, that works in its own thread (a web worker) and
+ * that transmuxer muxes the data into a native format. VirtualSourceBuffer will
+ * then send all of that data to the naive sourcebuffer so that it is
+ * indestinguishable from a natively supported format.
+ *
+ * @param {HtmlMediaSource} mediaSource the parent mediaSource
+ * @param {Array} codecs array of codecs that we will be dealing with
+ * @class VirtualSourceBuffer
+ * @extends video.js.EventTarget
+ */
+
+var VirtualSourceBuffer = function (_videojs$EventTarget) {
+ inherits$1(VirtualSourceBuffer, _videojs$EventTarget);
+
+ function VirtualSourceBuffer(mediaSource, codecs) {
+ classCallCheck$1(this, VirtualSourceBuffer);
+
+ var _this = possibleConstructorReturn$1(this, (VirtualSourceBuffer.__proto__ || Object.getPrototypeOf(VirtualSourceBuffer)).call(this, videojs$1.EventTarget));
+
+ _this.timestampOffset_ = 0;
+ _this.pendingBuffers_ = [];
+ _this.bufferUpdating_ = false;
+
+ _this.mediaSource_ = mediaSource;
+ _this.codecs_ = codecs;
+ _this.audioCodec_ = null;
+ _this.videoCodec_ = null;
+ _this.audioDisabled_ = false;
+ _this.appendAudioInitSegment_ = true;
+ _this.gopBuffer_ = [];
+ _this.timeMapping_ = 0;
+ _this.safeAppend_ = videojs$1.browser.IE_VERSION >= 11;
+
+ var options = {
+ remux: false,
+ alignGopsAtEnd: _this.safeAppend_
+ };
+
+ _this.codecs_.forEach(function (codec) {
+ if (isAudioCodec(codec)) {
+ _this.audioCodec_ = codec;
+ } else if (isVideoCodec(codec)) {
+ _this.videoCodec_ = codec;
+ }
+ });
+
+ // append muxed segments to their respective native buffers as
+ // soon as they are available
+ _this.transmuxer_ = new TransmuxWorker();
+ _this.transmuxer_.postMessage({ action: 'init', options: options });
+
+ _this.transmuxer_.onmessage = function (event) {
+ if (event.data.action === 'data') {
+ return _this.data_(event);
+ }
+
+ if (event.data.action === 'done') {
+ return _this.done_(event);
+ }
+
+ if (event.data.action === 'gopInfo') {
+ return _this.appendGopInfo_(event);
+ }
+ };
+
+ // this timestampOffset is a property with the side-effect of resetting
+ // baseMediaDecodeTime in the transmuxer on the setter
+ Object.defineProperty(_this, 'timestampOffset', {
+ get: function get$$1() {
+ return this.timestampOffset_;
+ },
+ set: function set$$1(val) {
+ if (typeof val === 'number' && val >= 0) {
+ this.timestampOffset_ = val;
+ this.appendAudioInitSegment_ = true;
+
+ // reset gop buffer on timestampoffset as this signals a change in timeline
+ this.gopBuffer_.length = 0;
+ this.timeMapping_ = 0;
+
+ // We have to tell the transmuxer to set the baseMediaDecodeTime to
+ // the desired timestampOffset for the next segment
+ this.transmuxer_.postMessage({
+ action: 'setTimestampOffset',
+ timestampOffset: val
+ });
+ }
+ }
+ });
+
+ // setting the append window affects both source buffers
+ Object.defineProperty(_this, 'appendWindowStart', {
+ get: function get$$1() {
+ return (this.videoBuffer_ || this.audioBuffer_).appendWindowStart;
+ },
+ set: function set$$1(start) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.appendWindowStart = start;
+ }
+ if (this.audioBuffer_) {
+ this.audioBuffer_.appendWindowStart = start;
+ }
+ }
+ });
+
+ // this buffer is "updating" if either of its native buffers are
+ Object.defineProperty(_this, 'updating', {
+ get: function get$$1() {
+ return !!(this.bufferUpdating_ || !this.audioDisabled_ && this.audioBuffer_ && this.audioBuffer_.updating || this.videoBuffer_ && this.videoBuffer_.updating);
+ }
+ });
+
+ // the buffered property is the intersection of the buffered
+ // ranges of the native source buffers
+ Object.defineProperty(_this, 'buffered', {
+ get: function get$$1() {
+ return buffered(this.videoBuffer_, this.audioBuffer_, this.audioDisabled_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * When we get a data event from the transmuxer
+ * we call this function and handle the data that
+ * was sent to us
+ *
+ * @private
+ * @param {Event} event the data event from the transmuxer
+ */
+
+ createClass$1(VirtualSourceBuffer, [{
+ key: 'data_',
+ value: function data_(event) {
+ var segment = event.data.segment;
+
+ // Cast ArrayBuffer to TypedArray
+ segment.data = new Uint8Array(segment.data, event.data.byteOffset, event.data.byteLength);
+
+ segment.initSegment = new Uint8Array(segment.initSegment.data, segment.initSegment.byteOffset, segment.initSegment.byteLength);
+
+ createTextTracksIfNecessary(this, this.mediaSource_, segment);
+
+ // Add the segments to the pendingBuffers array
+ this.pendingBuffers_.push(segment);
+ return;
+ }
+
+ /**
+ * When we get a done event from the transmuxer
+ * we call this function and we process all
+ * of the pending data that we have been saving in the
+ * data_ function
+ *
+ * @private
+ * @param {Event} event the done event from the transmuxer
+ */
+
+ }, {
+ key: 'done_',
+ value: function done_(event) {
+ // Don't process and append data if the mediaSource is closed
+ if (this.mediaSource_.readyState === 'closed') {
+ this.pendingBuffers_.length = 0;
+ return;
+ }
+
+ // All buffers should have been flushed from the muxer
+ // start processing anything we have received
+ this.processPendingSegments_();
+ return;
+ }
+
+ /**
+ * Create our internal native audio/video source buffers and add
+ * event handlers to them with the following conditions:
+ * 1. they do not already exist on the mediaSource
+ * 2. this VSB has a codec for them
+ *
+ * @private
+ */
+
+ }, {
+ key: 'createRealSourceBuffers_',
+ value: function createRealSourceBuffers_() {
+ var _this2 = this;
+
+ var types = ['audio', 'video'];
+
+ types.forEach(function (type) {
+ // Don't create a SourceBuffer of this type if we don't have a
+ // codec for it
+ if (!_this2[type + 'Codec_']) {
+ return;
+ }
+
+ // Do nothing if a SourceBuffer of this type already exists
+ if (_this2[type + 'Buffer_']) {
+ return;
+ }
+
+ var buffer = null;
+
+ // If the mediasource already has a SourceBuffer for the codec
+ // use that
+ if (_this2.mediaSource_[type + 'Buffer_']) {
+ buffer = _this2.mediaSource_[type + 'Buffer_'];
+ // In multiple audio track cases, the audio source buffer is disabled
+ // on the main VirtualSourceBuffer by the HTMLMediaSource much earlier
+ // than createRealSourceBuffers_ is called to create the second
+ // VirtualSourceBuffer because that happens as a side-effect of
+ // videojs-contrib-hls starting the audioSegmentLoader. As a result,
+ // the audioBuffer is essentially "ownerless" and no one will toggle
+ // the `updating` state back to false once the `updateend` event is received
+ //
+ // Setting `updating` to false manually will work around this
+ // situation and allow work to continue
+ buffer.updating = false;
+ } else {
+ var codecProperty = type + 'Codec_';
+ var mimeType = type + '/mp4;codecs="' + _this2[codecProperty] + '"';
+
+ buffer = makeWrappedSourceBuffer(_this2.mediaSource_.nativeMediaSource_, mimeType);
+
+ _this2.mediaSource_[type + 'Buffer_'] = buffer;
+ }
+
+ _this2[type + 'Buffer_'] = buffer;
+
+ // Wire up the events to the SourceBuffer
+ ['update', 'updatestart', 'updateend'].forEach(function (event) {
+ buffer.addEventListener(event, function () {
+ // if audio is disabled
+ if (type === 'audio' && _this2.audioDisabled_) {
+ return;
+ }
+
+ if (event === 'updateend') {
+ _this2[type + 'Buffer_'].updating = false;
+ }
+
+ var shouldTrigger = types.every(function (t) {
+ // skip checking audio's updating status if audio
+ // is not enabled
+ if (t === 'audio' && _this2.audioDisabled_) {
+ return true;
+ }
+ // if the other type if updating we don't trigger
+ if (type !== t && _this2[t + 'Buffer_'] && _this2[t + 'Buffer_'].updating) {
+ return false;
+ }
+ return true;
+ });
+
+ if (shouldTrigger) {
+ return _this2.trigger(event);
+ }
+ });
+ });
+ });
+ }
+
+ /**
+ * Emulate the native mediasource function, but our function will
+ * send all of the proposed segments to the transmuxer so that we
+ * can transmux them before we append them to our internal
+ * native source buffers in the correct format.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/appendBuffer
+ * @param {Uint8Array} segment the segment to append to the buffer
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(segment) {
+ // Start the internal "updating" state
+ this.bufferUpdating_ = true;
+
+ if (this.audioBuffer_ && this.audioBuffer_.buffered.length) {
+ var audioBuffered = this.audioBuffer_.buffered;
+
+ this.transmuxer_.postMessage({
+ action: 'setAudioAppendStart',
+ appendStart: audioBuffered.end(audioBuffered.length - 1)
+ });
+ }
+
+ if (this.videoBuffer_) {
+ this.transmuxer_.postMessage({
+ action: 'alignGopsWith',
+ gopsToAlignWith: gopsSafeToAlignWith(this.gopBuffer_, this.mediaSource_.player_ ? this.mediaSource_.player_.currentTime() : null, this.timeMapping_)
+ });
+ }
+
+ this.transmuxer_.postMessage({
+ action: 'push',
+ // Send the typed-array of data as an ArrayBuffer so that
+ // it can be sent as a "Transferable" and avoid the costly
+ // memory copy
+ data: segment.buffer,
+
+ // To recreate the original typed-array, we need information
+ // about what portion of the ArrayBuffer it was a view into
+ byteOffset: segment.byteOffset,
+ byteLength: segment.byteLength
+ }, [segment.buffer]);
+ this.transmuxer_.postMessage({ action: 'flush' });
+ }
+
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Event} event
+ * The gopInfo event from the transmuxer
+ * @param {Array} event.data.gopInfo
+ * List of gop info to append
+ */
+
+ }, {
+ key: 'appendGopInfo_',
+ value: function appendGopInfo_(event) {
+ this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, event.data.gopInfo, this.safeAppend_);
+ }
+
+ /**
+ * Emulate the native mediasource function and remove parts
+ * of the buffer from any of our internal buffers that exist
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/remove
+ * @param {Double} start position to start the remove at
+ * @param {Double} end position to end the remove at
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.updating = true;
+ this.videoBuffer_.remove(start, end);
+ this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.updating = true;
+ this.audioBuffer_.remove(start, end);
+ }
+
+ // Remove Metadata Cues (id3)
+ removeCuesFromTrack(start, end, this.metadataTrack_);
+
+ // Remove Any Captions
+ if (this.inbandTextTracks_) {
+ for (var track in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
+ }
+ }
+ }
+
+ /**
+ * Process any segments that the muxer has output
+ * Concatenate segments together based on type and append them into
+ * their respective sourceBuffers
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processPendingSegments_',
+ value: function processPendingSegments_() {
+ var sortedSegments = {
+ video: {
+ segments: [],
+ bytes: 0
+ },
+ audio: {
+ segments: [],
+ bytes: 0
+ },
+ captions: [],
+ metadata: []
+ };
+
+ // Sort segments into separate video/audio arrays and
+ // keep track of their total byte lengths
+ sortedSegments = this.pendingBuffers_.reduce(function (segmentObj, segment) {
+ var type = segment.type;
+ var data = segment.data;
+ var initSegment = segment.initSegment;
+
+ segmentObj[type].segments.push(data);
+ segmentObj[type].bytes += data.byteLength;
+
+ segmentObj[type].initSegment = initSegment;
+
+ // Gather any captions into a single array
+ if (segment.captions) {
+ segmentObj.captions = segmentObj.captions.concat(segment.captions);
+ }
+
+ if (segment.info) {
+ segmentObj[type].info = segment.info;
+ }
+
+ // Gather any metadata into a single array
+ if (segment.metadata) {
+ segmentObj.metadata = segmentObj.metadata.concat(segment.metadata);
+ }
+
+ return segmentObj;
+ }, sortedSegments);
+
+ // Create the real source buffers if they don't exist by now since we
+ // finally are sure what tracks are contained in the source
+ if (!this.videoBuffer_ && !this.audioBuffer_) {
+ // Remove any codecs that may have been specified by default but
+ // are no longer applicable now
+ if (sortedSegments.video.bytes === 0) {
+ this.videoCodec_ = null;
+ }
+ if (sortedSegments.audio.bytes === 0) {
+ this.audioCodec_ = null;
+ }
+
+ this.createRealSourceBuffers_();
+ }
+
+ if (sortedSegments.audio.info) {
+ this.mediaSource_.trigger({ type: 'audioinfo', info: sortedSegments.audio.info });
+ }
+ if (sortedSegments.video.info) {
+ this.mediaSource_.trigger({ type: 'videoinfo', info: sortedSegments.video.info });
+ }
+
+ if (this.appendAudioInitSegment_) {
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ sortedSegments.audio.segments.unshift(sortedSegments.audio.initSegment);
+ sortedSegments.audio.bytes += sortedSegments.audio.initSegment.byteLength;
+ }
+ this.appendAudioInitSegment_ = false;
+ }
+
+ var triggerUpdateend = false;
+
+ // Merge multiple video and audio segments into one and append
+ if (this.videoBuffer_ && sortedSegments.video.bytes) {
+ sortedSegments.video.segments.unshift(sortedSegments.video.initSegment);
+ sortedSegments.video.bytes += sortedSegments.video.initSegment.byteLength;
+ this.concatAndAppendSegments_(sortedSegments.video, this.videoBuffer_);
+ // TODO: are video tracks the only ones with text tracks?
+ addTextTrackData(this, sortedSegments.captions, sortedSegments.metadata);
+ } else if (this.videoBuffer_ && (this.audioDisabled_ || !this.audioBuffer_)) {
+ // The transmuxer did not return any bytes of video, meaning it was all trimmed
+ // for gop alignment. Since we have a video buffer and audio is disabled, updateend
+ // will never be triggered by this source buffer, which will cause contrib-hls
+ // to be stuck forever waiting for updateend. If audio is not disabled, updateend
+ // will be triggered by the audio buffer, which will be sent upwards since the video
+ // buffer will not be in an updating state.
+ triggerUpdateend = true;
+ }
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.concatAndAppendSegments_(sortedSegments.audio, this.audioBuffer_);
+ }
+
+ this.pendingBuffers_.length = 0;
+
+ if (triggerUpdateend) {
+ this.trigger('updateend');
+ }
+
+ // We are no longer in the internal "updating" state
+ this.bufferUpdating_ = false;
+ }
+
+ /**
+ * Combine all segments into a single Uint8Array and then append them
+ * to the destination buffer
+ *
+ * @param {Object} segmentObj
+ * @param {SourceBuffer} destinationBuffer native source buffer to append data to
+ * @private
+ */
+
+ }, {
+ key: 'concatAndAppendSegments_',
+ value: function concatAndAppendSegments_(segmentObj, destinationBuffer) {
+ var offset = 0;
+ var tempBuffer = void 0;
+
+ if (segmentObj.bytes) {
+ tempBuffer = new Uint8Array(segmentObj.bytes);
+
+ // Combine the individual segments into one large typed-array
+ segmentObj.segments.forEach(function (segment) {
+ tempBuffer.set(segment, offset);
+ offset += segment.byteLength;
+ });
+
+ try {
+ destinationBuffer.updating = true;
+ destinationBuffer.appendBuffer(tempBuffer);
+ } catch (error) {
+ if (this.mediaSource_.player_) {
+ this.mediaSource_.player_.error({
+ code: -3,
+ type: 'APPEND_BUFFER_ERR',
+ message: error.message,
+ originalError: error
+ });
+ }
+ }
+ }
+ }
+
+ /**
+ * Emulate the native mediasource function. abort any soureBuffer
+ * actions and throw out any un-appended data.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/abort
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.abort();
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.abort();
+ }
+ if (this.transmuxer_) {
+ this.transmuxer_.postMessage({ action: 'reset' });
+ }
+ this.pendingBuffers_.length = 0;
+ this.bufferUpdating_ = false;
+ }
+ }]);
+ return VirtualSourceBuffer;
+}(videojs$1.EventTarget);
+
+/**
+ * @file html-media-source.js
+ */
+
+/**
+ * Our MediaSource implementation in HTML, mimics native
+ * MediaSource where/if possible.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource
+ * @class HtmlMediaSource
+ * @extends videojs.EventTarget
+ */
+
+var HtmlMediaSource = function (_videojs$EventTarget) {
+ inherits$1(HtmlMediaSource, _videojs$EventTarget);
+
+ function HtmlMediaSource() {
+ classCallCheck$1(this, HtmlMediaSource);
+
+ var _this = possibleConstructorReturn$1(this, (HtmlMediaSource.__proto__ || Object.getPrototypeOf(HtmlMediaSource)).call(this));
+
+ var property = void 0;
+
+ _this.nativeMediaSource_ = new window$1.MediaSource();
+ // delegate to the native MediaSource's methods by default
+ for (property in _this.nativeMediaSource_) {
+ if (!(property in HtmlMediaSource.prototype) && typeof _this.nativeMediaSource_[property] === 'function') {
+ _this[property] = _this.nativeMediaSource_[property].bind(_this.nativeMediaSource_);
+ }
+ }
+
+ // emulate `duration` and `seekable` until seeking can be
+ // handled uniformly for live streams
+ // see https://github.com/w3c/media-source/issues/5
+ _this.duration_ = NaN;
+ Object.defineProperty(_this, 'duration', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return this.duration_;
+ }
+ return this.nativeMediaSource_.duration;
+ },
+ set: function set$$1(duration) {
+ this.duration_ = duration;
+ if (duration !== Infinity) {
+ this.nativeMediaSource_.duration = duration;
+ return;
+ }
+ }
+ });
+ Object.defineProperty(_this, 'seekable', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return videojs$1.createTimeRanges([[0, this.nativeMediaSource_.duration]]);
+ }
+ return this.nativeMediaSource_.seekable;
+ }
+ });
+
+ Object.defineProperty(_this, 'readyState', {
+ get: function get$$1() {
+ return this.nativeMediaSource_.readyState;
+ }
+ });
+
+ Object.defineProperty(_this, 'activeSourceBuffers', {
+ get: function get$$1() {
+ return this.activeSourceBuffers_;
+ }
+ });
+
+ // the list of virtual and native SourceBuffers created by this
+ // MediaSource
+ _this.sourceBuffers = [];
+
+ _this.activeSourceBuffers_ = [];
+
+ /**
+ * update the list of active source buffers based upon various
+ * imformation from HLS and video.js
+ *
+ * @private
+ */
+ _this.updateActiveSourceBuffers_ = function () {
+ // Retain the reference but empty the array
+ _this.activeSourceBuffers_.length = 0;
+
+ // If there is only one source buffer, then it will always be active and audio will
+ // be disabled based on the codec of the source buffer
+ if (_this.sourceBuffers.length === 1) {
+ var sourceBuffer = _this.sourceBuffers[0];
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+ sourceBuffer.audioDisabled_ = !sourceBuffer.audioCodec_;
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ return;
+ }
+
+ // There are 2 source buffers, a combined (possibly video only) source buffer and
+ // and an audio only source buffer.
+ // By default, the audio in the combined virtual source buffer is enabled
+ // and the audio-only source buffer (if it exists) is disabled.
+ var disableCombined = false;
+ var disableAudioOnly = true;
+
+ // TODO: maybe we can store the sourcebuffers on the track objects?
+ // safari may do something like this
+ for (var i = 0; i < _this.player_.audioTracks().length; i++) {
+ var track = _this.player_.audioTracks()[i];
+
+ if (track.enabled && track.kind !== 'main') {
+ // The enabled track is an alternate audio track so disable the audio in
+ // the combined source buffer and enable the audio-only source buffer.
+ disableCombined = true;
+ disableAudioOnly = false;
+ break;
+ }
+ }
+
+ _this.sourceBuffers.forEach(function (sourceBuffer, index) {
+ /* eslinst-disable */
+ // TODO once codecs are required, we can switch to using the codecs to determine
+ // what stream is the video stream, rather than relying on videoTracks
+ /* eslinst-enable */
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+
+ if (sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // combined
+ sourceBuffer.audioDisabled_ = disableCombined;
+ } else if (sourceBuffer.videoCodec_ && !sourceBuffer.audioCodec_) {
+ // If the "combined" source buffer is video only, then we do not want
+ // disable the audio-only source buffer (this is mostly for demuxed
+ // audio and video hls)
+ sourceBuffer.audioDisabled_ = true;
+ disableAudioOnly = false;
+ } else if (!sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // audio only
+ // In the case of audio only with alternate audio and disableAudioOnly is true
+ // this means we want to disable the audio on the alternate audio sourcebuffer
+ // but not the main "combined" source buffer. The "combined" source buffer is
+ // always at index 0, so this ensures audio won't be disabled in both source
+ // buffers.
+ sourceBuffer.audioDisabled_ = index ? disableAudioOnly : !disableAudioOnly;
+ if (sourceBuffer.audioDisabled_) {
+ return;
+ }
+ }
+
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ });
+ };
+
+ _this.onPlayerMediachange_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ sourceBuffer.appendAudioInitSegment_ = true;
+ });
+ };
+
+ _this.onHlsReset_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.postMessage({ action: 'resetCaptions' });
+ }
+ });
+ };
+
+ _this.onHlsSegmentTimeMapping_ = function (event) {
+ _this.sourceBuffers.forEach(function (buffer) {
+ return buffer.timeMapping_ = event.mapping;
+ });
+ };
+
+ // Re-emit MediaSource events on the polyfill
+ ['sourceopen', 'sourceclose', 'sourceended'].forEach(function (eventName) {
+ this.nativeMediaSource_.addEventListener(eventName, this.trigger.bind(this));
+ }, _this);
+
+ // capture the associated player when the MediaSource is
+ // successfully attached
+ _this.on('sourceopen', function (event) {
+ // Get the player this MediaSource is attached to
+ var video = document.querySelector('[src="' + _this.url_ + '"]');
+
+ if (!video) {
+ return;
+ }
+
+ _this.player_ = videojs$1(video.parentNode);
+
+ // hls-reset is fired by videojs.Hls on to the tech after the main SegmentLoader
+ // resets its state and flushes the buffer
+ _this.player_.tech_.on('hls-reset', _this.onHlsReset_);
+ // hls-segment-time-mapping is fired by videojs.Hls on to the tech after the main
+ // SegmentLoader inspects an MTS segment and has an accurate stream to display
+ // time mapping
+ _this.player_.tech_.on('hls-segment-time-mapping', _this.onHlsSegmentTimeMapping_);
+
+ if (_this.player_.audioTracks && _this.player_.audioTracks()) {
+ _this.player_.audioTracks().on('change', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('addtrack', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('removetrack', _this.updateActiveSourceBuffers_);
+ }
+
+ _this.player_.on('mediachange', _this.onPlayerMediachange_);
+ });
+
+ _this.on('sourceended', function (event) {
+ var duration = durationOfVideo(_this.duration);
+
+ for (var i = 0; i < _this.sourceBuffers.length; i++) {
+ var sourcebuffer = _this.sourceBuffers[i];
+ var cues = sourcebuffer.metadataTrack_ && sourcebuffer.metadataTrack_.cues;
+
+ if (cues && cues.length) {
+ cues[cues.length - 1].endTime = duration;
+ }
+ }
+ });
+
+ // explicitly terminate any WebWorkers that were created
+ // by SourceHandlers
+ _this.on('sourceclose', function (event) {
+ this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.terminate();
+ }
+ });
+
+ this.sourceBuffers.length = 0;
+ if (!this.player_) {
+ return;
+ }
+
+ if (this.player_.audioTracks && this.player_.audioTracks()) {
+ this.player_.audioTracks().off('change', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('addtrack', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('removetrack', this.updateActiveSourceBuffers_);
+ }
+
+ // We can only change this if the player hasn't been disposed of yet
+ // because `off` eventually tries to use the el_ property. If it has
+ // been disposed of, then don't worry about it because there are no
+ // event handlers left to unbind anyway
+ if (this.player_.el_) {
+ this.player_.off('mediachange', this.onPlayerMediachange_);
+ this.player_.tech_.off('hls-reset', this.onHlsReset_);
+ this.player_.tech_.off('hls-segment-time-mapping', this.onHlsSegmentTimeMapping_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * Add a range that that can now be seeked to.
+ *
+ * @param {Double} start where to start the addition
+ * @param {Double} end where to end the addition
+ * @private
+ */
+
+ createClass$1(HtmlMediaSource, [{
+ key: 'addSeekableRange_',
+ value: function addSeekableRange_(start, end) {
+ var error = void 0;
+
+ if (this.duration !== Infinity) {
+ error = new Error('MediaSource.addSeekableRange() can only be invoked ' + 'when the duration is Infinity');
+ error.name = 'InvalidStateError';
+ error.code = 11;
+ throw error;
+ }
+
+ if (end > this.nativeMediaSource_.duration || isNaN(this.nativeMediaSource_.duration)) {
+ this.nativeMediaSource_.duration = end;
+ }
+ }
+
+ /**
+ * Add a source buffer to the media source.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/addSourceBuffer
+ * @param {String} type the content-type of the content
+ * @return {Object} the created source buffer
+ */
+
+ }, {
+ key: 'addSourceBuffer',
+ value: function addSourceBuffer(type) {
+ var buffer = void 0;
+ var parsedType = parseContentType(type);
+
+ // Create a VirtualSourceBuffer to transmux MPEG-2 transport
+ // stream segments into fragmented MP4s
+ if (/^(video|audio)\/mp2t$/i.test(parsedType.type)) {
+ var codecs = [];
+
+ if (parsedType.parameters && parsedType.parameters.codecs) {
+ codecs = parsedType.parameters.codecs.split(',');
+ codecs = translateLegacyCodecs(codecs);
+ codecs = codecs.filter(function (codec) {
+ return isAudioCodec(codec) || isVideoCodec(codec);
+ });
+ }
+
+ if (codecs.length === 0) {
+ codecs = ['avc1.4d400d', 'mp4a.40.2'];
+ }
+
+ buffer = new VirtualSourceBuffer(this, codecs);
+
+ if (this.sourceBuffers.length !== 0) {
+ // If another VirtualSourceBuffer already exists, then we are creating a
+ // SourceBuffer for an alternate audio track and therefore we know that
+ // the source has both an audio and video track.
+ // That means we should trigger the manual creation of the real
+ // SourceBuffers instead of waiting for the transmuxer to return data
+ this.sourceBuffers[0].createRealSourceBuffers_();
+ buffer.createRealSourceBuffers_();
+
+ // Automatically disable the audio on the first source buffer if
+ // a second source buffer is ever created
+ this.sourceBuffers[0].audioDisabled_ = true;
+ }
+ } else {
+ // delegate to the native implementation
+ buffer = this.nativeMediaSource_.addSourceBuffer(type);
+ }
+
+ this.sourceBuffers.push(buffer);
+ return buffer;
+ }
+ }]);
+ return HtmlMediaSource;
+}(videojs$1.EventTarget);
+
+/**
+ * @file videojs-contrib-media-sources.js
+ */
+var urlCount = 0;
+
+// ------------
+// Media Source
+// ------------
+
+// store references to the media sources so they can be connected
+// to a video element (a swf object)
+// TODO: can we store this somewhere local to this module?
+videojs$1.mediaSources = {};
+
+/**
+ * Provide a method for a swf object to notify JS that a
+ * media source is now open.
+ *
+ * @param {String} msObjectURL string referencing the MSE Object URL
+ * @param {String} swfId the swf id
+ */
+var open = function open(msObjectURL, swfId) {
+ var mediaSource = videojs$1.mediaSources[msObjectURL];
+
+ if (mediaSource) {
+ mediaSource.trigger({ type: 'sourceopen', swfId: swfId });
+ } else {
+ throw new Error('Media Source not found (Video.js)');
+ }
+};
+
+/**
+ * Check to see if the native MediaSource object exists and supports
+ * an MP4 container with both H.264 video and AAC-LC audio.
+ *
+ * @return {Boolean} if native media sources are supported
+ */
+var supportsNativeMediaSources = function supportsNativeMediaSources() {
+ return !!window$1.MediaSource && !!window$1.MediaSource.isTypeSupported && window$1.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"');
+};
+
+/**
+ * An emulation of the MediaSource API so that we can support
+ * native and non-native functionality. returns an instance of
+ * HtmlMediaSource.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/MediaSource
+ */
+var MediaSource = function MediaSource() {
+ this.MediaSource = {
+ open: open,
+ supportsNativeMediaSources: supportsNativeMediaSources
+ };
+
+ if (supportsNativeMediaSources()) {
+ return new HtmlMediaSource();
+ }
+
+ throw new Error('Cannot use create a virtual MediaSource for this video');
+};
+
+MediaSource.open = open;
+MediaSource.supportsNativeMediaSources = supportsNativeMediaSources;
+
+/**
+ * A wrapper around the native URL for our MSE object
+ * implementation, this object is exposed under videojs.URL
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/URL
+ */
+var URL$1 = {
+ /**
+ * A wrapper around the native createObjectURL for our objects.
+ * This function maps a native or emulated mediaSource to a blob
+ * url so that it can be loaded into video.js
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
+ * @param {MediaSource} object the object to create a blob url to
+ */
+ createObjectURL: function createObjectURL(object) {
+ var objectUrlPrefix = 'blob:vjs-media-source/';
+ var url = void 0;
+
+ // use the native MediaSource to generate an object URL
+ if (object instanceof HtmlMediaSource) {
+ url = window$1.URL.createObjectURL(object.nativeMediaSource_);
+ object.url_ = url;
+ return url;
+ }
+ // if the object isn't an emulated MediaSource, delegate to the
+ // native implementation
+ if (!(object instanceof HtmlMediaSource)) {
+ url = window$1.URL.createObjectURL(object);
+ object.url_ = url;
+ return url;
+ }
+
+ // build a URL that can be used to map back to the emulated
+ // MediaSource
+ url = objectUrlPrefix + urlCount;
+
+ urlCount++;
+
+ // setup the mapping back to object
+ videojs$1.mediaSources[url] = object;
+
+ return url;
+ }
+};
+
+videojs$1.MediaSource = MediaSource;
+videojs$1.URL = URL$1;
+
+var EventTarget$1$1 = videojs$1.EventTarget,
+ mergeOptions$2 = videojs$1.mergeOptions;
+
+/**
+ * Returns a new master manifest that is the result of merging an updated master manifest
+ * into the original version.
+ *
+ * @param {Object} oldMaster
+ * The old parsed mpd object
+ * @param {Object} newMaster
+ * The updated parsed mpd object
+ * @return {Object}
+ * A new object representing the original master manifest with the updated media
+ * playlists merged in
+ */
+
+var updateMaster$1 = function updateMaster$$1(oldMaster, newMaster) {
+ var update = mergeOptions$2(oldMaster, {
+ // These are top level properties that can be updated
+ duration: newMaster.duration,
+ minimumUpdatePeriod: newMaster.minimumUpdatePeriod
+ });
+
+ // First update the playlists in playlist list
+ for (var i = 0; i < newMaster.playlists.length; i++) {
+ var playlistUpdate = updateMaster(update, newMaster.playlists[i]);
+
+ if (playlistUpdate) {
+ update = playlistUpdate;
+ }
+ }
+
+ // Then update media group playlists
+ forEachMediaGroup(newMaster, function (properties, type, group, label) {
+ if (properties.playlists && properties.playlists.length) {
+ var uri = properties.playlists[0].uri;
+ var _playlistUpdate = updateMaster(update, properties.playlists[0]);
+
+ if (_playlistUpdate) {
+ update = _playlistUpdate;
+ // update the playlist reference within media groups
+ update.mediaGroups[type][group][label].playlists[0] = update.playlists[uri];
+ }
+ }
+ });
+
+ return update;
+};
+
+var DashPlaylistLoader = function (_EventTarget) {
+ inherits$1(DashPlaylistLoader, _EventTarget);
+
+ // DashPlaylistLoader must accept either a src url or a playlist because subsequent
+ // playlist loader setups from media groups will expect to be able to pass a playlist
+ // (since there aren't external URLs to media playlists with DASH)
+ function DashPlaylistLoader(srcUrlOrPlaylist, hls, withCredentials, masterPlaylistLoader) {
+ classCallCheck$1(this, DashPlaylistLoader);
+
+ var _this = possibleConstructorReturn$1(this, (DashPlaylistLoader.__proto__ || Object.getPrototypeOf(DashPlaylistLoader)).call(this));
+
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!srcUrlOrPlaylist) {
+ throw new Error('A non-empty playlist URL or playlist is required');
+ }
+
+ // event naming?
+ _this.on('minimumUpdatePeriod', function () {
+ _this.refreshXml_();
+ });
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ _this.refreshMedia_();
+ });
+
+ // initialize the loader state
+ if (typeof srcUrlOrPlaylist === 'string') {
+ _this.srcUrl = srcUrlOrPlaylist;
+ _this.state = 'HAVE_NOTHING';
+ return possibleConstructorReturn$1(_this);
+ }
+
+ _this.masterPlaylistLoader_ = masterPlaylistLoader;
+
+ _this.state = 'HAVE_METADATA';
+ _this.started = true;
+ // we only should have one playlist so select it
+ _this.media(srcUrlOrPlaylist);
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window$1.setTimeout(function () {
+ _this.trigger('loadedmetadata');
+ }, 0);
+ return _this;
+ }
+
+ createClass$1(DashPlaylistLoader, [{
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ this.state = 'HAVE_METADATA';
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ // switching from an already loaded playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.media_ = playlist;
+
+ this.refreshMedia_();
+
+ // trigger media change if the active media has been updated
+ if (startingState !== 'HAVE_MASTER') {
+ this.trigger('mediachange');
+ }
+ }
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ }
+ }, {
+ key: 'load',
+ value: function load() {
+ // because the playlists are internal to the manifest, load should either load the
+ // main manifest, or do nothing but trigger an event
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Parses the master xml string and updates playlist uri references
+ *
+ * @return {Object}
+ * The parsed mpd manifest object
+ */
+
+ }, {
+ key: 'parseMasterXml',
+ value: function parseMasterXml() {
+ var master = mpdParser.parse(this.masterXml_, {
+ manifestUri: this.srcUrl,
+ clientOffset: this.clientOffset_
+ });
+
+ master.uri = this.srcUrl;
+
+ // Set up phony URIs for the playlists since we won't have external URIs for DASH
+ // but reference playlists by their URI throughout the project
+ // TODO: Should we create the dummy uris in mpd-parser as well (leaning towards yes).
+ for (var i = 0; i < master.playlists.length; i++) {
+ var phonyUri = 'placeholder-uri-' + i;
+
+ master.playlists[i].uri = phonyUri;
+ // set up by URI references
+ master.playlists[phonyUri] = master.playlists[i];
+ }
+
+ // set up phony URIs for the media group playlists since we won't have external
+ // URIs for DASH but reference playlists by their URI throughout the project
+ forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
+ if (properties.playlists && properties.playlists.length) {
+ var _phonyUri = 'placeholder-uri-' + mediaType + '-' + groupKey + '-' + labelKey;
+
+ properties.playlists[0].uri = _phonyUri;
+ // setup URI references
+ master.playlists[_phonyUri] = properties.playlists[0];
+ }
+ });
+
+ setupMediaPlaylists(master);
+ resolveMediaGroupUris(master);
+
+ return master;
+ }
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this2 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this2.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this2.request = null;
+
+ if (error) {
+ _this2.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this2.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this2.state === 'HAVE_NOTHING') {
+ _this2.started = false;
+ }
+ return _this2.trigger('error');
+ }
+
+ _this2.masterXml_ = req.responseText;
+
+ if (req.responseHeaders && req.responseHeaders.date) {
+ _this2.masterLoaded_ = Date.parse(req.responseHeaders.date);
+ } else {
+ _this2.masterLoaded_ = Date.now();
+ }
+
+ _this2.syncClientServerClock_(_this2.onClientServerClockSync_.bind(_this2));
+ });
+ }
+
+ /**
+ * Parses the master xml for UTCTiming node to sync the client clock to the server
+ * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
+ *
+ * @param {Function} done
+ * Function to call when clock sync has completed
+ */
+
+ }, {
+ key: 'syncClientServerClock_',
+ value: function syncClientServerClock_(done) {
+ var _this3 = this;
+
+ var utcTiming = mpdParser.parseUTCTiming(this.masterXml_);
+
+ // No UTCTiming element found in the mpd. Use Date header from mpd request as the
+ // server clock
+ if (utcTiming === null) {
+ this.clientOffset_ = this.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ if (utcTiming.method === 'DIRECT') {
+ this.clientOffset_ = utcTiming.value - Date.now();
+ return done();
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl(this.srcUrl, utcTiming.value),
+ method: utcTiming.method,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ // sync request failed, fall back to using date header from mpd
+ // TODO: log warning
+ _this3.clientOffset_ = _this3.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ var serverTime = void 0;
+
+ if (utcTiming.method === 'HEAD') {
+ if (!req.responseHeaders || !req.responseHeaders.date) {
+ // expected date header not preset, fall back to using date header from mpd
+ // TODO: log warning
+ serverTime = _this3.masterLoaded_;
+ } else {
+ serverTime = Date.parse(req.responseHeaders.date);
+ }
+ } else {
+ serverTime = Date.parse(req.responseText);
+ }
+
+ _this3.clientOffset_ = serverTime - Date.now();
+
+ done();
+ });
+ }
+
+ /**
+ * Handler for after client/server clock synchronization has happened. Sets up
+ * xml refresh timer if specificed by the manifest.
+ */
+
+ }, {
+ key: 'onClientServerClockSync_',
+ value: function onClientServerClockSync_() {
+ var _this4 = this;
+
+ this.master = this.parseMasterXml();
+
+ this.state = 'HAVE_MASTER';
+
+ this.trigger('loadedplaylist');
+
+ if (!this.media_) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ this.media(this.master.playlists[0]);
+ }
+ // trigger loadedmetadata to resolve setup of media groups
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window$1.setTimeout(function () {
+ _this4.trigger('loadedmetadata');
+ }, 0);
+
+ // TODO: minimumUpdatePeriod can have a value of 0. Currently the manifest will not
+ // be refreshed when this is the case. The inter-op guide says that when the
+ // minimumUpdatePeriod is 0, the manifest should outline all currently available
+ // segments, but future segments may require an update. I think a good solution
+ // would be to update the manifest at the same rate that the media playlists
+ // are "refreshed", i.e. every targetDuration.
+ if (this.master.minimumUpdatePeriod) {
+ window$1.setTimeout(function () {
+ _this4.trigger('minimumUpdatePeriod');
+ }, this.master.minimumUpdatePeriod);
+ }
+ }
+
+ /**
+ * Sends request to refresh the master xml and updates the parsed master manifest
+ * TODO: Does the client offset need to be recalculated when the xml is refreshed?
+ */
+
+ }, {
+ key: 'refreshXml_',
+ value: function refreshXml_() {
+ var _this5 = this;
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ _this5.masterXml_ = req.responseText;
+
+ var newMaster = _this5.parseMasterXml();
+
+ _this5.master = updateMaster$1(_this5.master, newMaster);
+
+ window$1.setTimeout(function () {
+ _this5.trigger('minimumUpdatePeriod');
+ }, _this5.master.minimumUpdatePeriod);
+ });
+ }
+
+ /**
+ * Refreshes the media playlist by re-parsing the master xml and updating playlist
+ * references. If this is an alternate loader, the updated parsed manifest is retrieved
+ * from the master loader.
+ */
+
+ }, {
+ key: 'refreshMedia_',
+ value: function refreshMedia_() {
+ var _this6 = this;
+
+ var oldMaster = void 0;
+ var newMaster = void 0;
+
+ if (this.masterPlaylistLoader_) {
+ oldMaster = this.masterPlaylistLoader_.master;
+ newMaster = this.masterPlaylistLoader_.parseMasterXml();
+ } else {
+ oldMaster = this.master;
+ newMaster = this.parseMasterXml();
+ }
+
+ var updatedMaster = updateMaster$1(oldMaster, newMaster);
+
+ if (updatedMaster) {
+ if (this.masterPlaylistLoader_) {
+ this.masterPlaylistLoader_.master = updatedMaster;
+ } else {
+ this.master = updatedMaster;
+ }
+ this.media_ = updatedMaster.playlists[this.media_.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ if (!this.media().endList) {
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ _this6.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!updatedMaster));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ }]);
+ return DashPlaylistLoader;
+}(EventTarget$1$1);
+
+var logger = function logger(source) {
+ if (videojs$1.log.debug) {
+ return videojs$1.log.debug.bind(videojs$1, 'VHS:', source + ' >');
+ }
+
+ return function () {};
+};
+
+function noop() {}
+
+/**
+ * @file source-updater.js
+ */
+
+/**
+ * A queue of callbacks to be serialized and applied when a
+ * MediaSource and its associated SourceBuffers are not in the
+ * updating state. It is used by the segment loader to update the
+ * underlying SourceBuffers when new data is loaded, for instance.
+ *
+ * @class SourceUpdater
+ * @param {MediaSource} mediaSource the MediaSource to create the
+ * SourceBuffer from
+ * @param {String} mimeType the desired MIME type of the underlying
+ * SourceBuffer
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer is
+ * added to the media source
+ */
+
+var SourceUpdater = function () {
+ function SourceUpdater(mediaSource, mimeType, type, sourceBufferEmitter) {
+ classCallCheck$1(this, SourceUpdater);
+
+ this.callbacks_ = [];
+ this.pendingCallback_ = null;
+ this.timestampOffset_ = 0;
+ this.mediaSource = mediaSource;
+ this.processedAppend_ = false;
+ this.type_ = type;
+ this.mimeType_ = mimeType;
+ this.logger_ = logger('SourceUpdater[' + type + '][' + mimeType + ']');
+
+ if (mediaSource.readyState === 'closed') {
+ mediaSource.addEventListener('sourceopen', this.createSourceBuffer_.bind(this, mimeType, sourceBufferEmitter));
+ } else {
+ this.createSourceBuffer_(mimeType, sourceBufferEmitter);
+ }
+ }
+
+ createClass$1(SourceUpdater, [{
+ key: 'createSourceBuffer_',
+ value: function createSourceBuffer_(mimeType, sourceBufferEmitter) {
+ var _this = this;
+
+ this.sourceBuffer_ = this.mediaSource.addSourceBuffer(mimeType);
+
+ this.logger_('created SourceBuffer');
+
+ if (sourceBufferEmitter) {
+ sourceBufferEmitter.trigger('sourcebufferadded');
+
+ if (this.mediaSource.sourceBuffers.length < 2) {
+ // There's another source buffer we must wait for before we can start updating
+ // our own (or else we can get into a bad state, i.e., appending video/audio data
+ // before the other video/audio source buffer is available and leading to a video
+ // or audio only buffer).
+ sourceBufferEmitter.on('sourcebufferadded', function () {
+ _this.start_();
+ });
+ return;
+ }
+ }
+
+ this.start_();
+ }
+ }, {
+ key: 'start_',
+ value: function start_() {
+ var _this2 = this;
+
+ this.started_ = true;
+
+ // run completion handlers and process callbacks as updateend
+ // events fire
+ this.onUpdateendCallback_ = function () {
+ var pendingCallback = _this2.pendingCallback_;
+
+ _this2.pendingCallback_ = null;
+
+ _this2.logger_('buffered [' + printableRange(_this2.buffered()) + ']');
+
+ if (pendingCallback) {
+ pendingCallback();
+ }
+
+ _this2.runCallback_();
+ };
+
+ this.sourceBuffer_.addEventListener('updateend', this.onUpdateendCallback_);
+
+ this.runCallback_();
+ }
+
+ /**
+ * Aborts the current segment and resets the segment parser.
+ *
+ * @param {Function} done function to call when done
+ * @see http://w3c.github.io/media-source/#widl-SourceBuffer-abort-void
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort(done) {
+ var _this3 = this;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this3.sourceBuffer_.abort();
+ }, done);
+ }
+ }
+
+ /**
+ * Queue an update to append an ArrayBuffer.
+ *
+ * @param {ArrayBuffer} bytes
+ * @param {Function} done the function to call when done
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(bytes, done) {
+ var _this4 = this;
+
+ this.processedAppend_ = true;
+ this.queueCallback_(function () {
+ _this4.sourceBuffer_.appendBuffer(bytes);
+ }, done);
+ }
+
+ /**
+ * Indicates what TimeRanges are buffered in the managed SourceBuffer.
+ *
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-buffered
+ */
+
+ }, {
+ key: 'buffered',
+ value: function buffered() {
+ if (!this.sourceBuffer_) {
+ return videojs$1.createTimeRanges();
+ }
+ return this.sourceBuffer_.buffered;
+ }
+
+ /**
+ * Queue an update to remove a time range from the buffer.
+ *
+ * @param {Number} start where to start the removal
+ * @param {Number} end where to end the removal
+ * @param {Function} [done=noop] optional callback to be executed when the remove
+ * operation is complete
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ var _this5 = this;
+
+ var done = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : noop;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this5.logger_('remove [' + start + ' => ' + end + ']');
+ _this5.sourceBuffer_.remove(start, end);
+ }, done);
+ }
+ }
+
+ /**
+ * Whether the underlying sourceBuffer is updating or not
+ *
+ * @return {Boolean} the updating status of the SourceBuffer
+ */
+
+ }, {
+ key: 'updating',
+ value: function updating() {
+ return !this.sourceBuffer_ || this.sourceBuffer_.updating || this.pendingCallback_;
+ }
+
+ /**
+ * Set/get the timestampoffset on the SourceBuffer
+ *
+ * @return {Number} the timestamp offset
+ */
+
+ }, {
+ key: 'timestampOffset',
+ value: function timestampOffset(offset) {
+ var _this6 = this;
+
+ if (typeof offset !== 'undefined') {
+ this.queueCallback_(function () {
+ _this6.sourceBuffer_.timestampOffset = offset;
+ });
+ this.timestampOffset_ = offset;
+ }
+ return this.timestampOffset_;
+ }
+
+ /**
+ * Queue a callback to run
+ */
+
+ }, {
+ key: 'queueCallback_',
+ value: function queueCallback_(callback, done) {
+ this.callbacks_.push([callback.bind(this), done]);
+ this.runCallback_();
+ }
+
+ /**
+ * Run a queued callback
+ */
+
+ }, {
+ key: 'runCallback_',
+ value: function runCallback_() {
+ var callbacks = void 0;
+
+ if (!this.updating() && this.callbacks_.length && this.started_) {
+ callbacks = this.callbacks_.shift();
+ this.pendingCallback_ = callbacks[1];
+ callbacks[0]();
+ }
+ }
+
+ /**
+ * dispose of the source updater and the underlying sourceBuffer
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.sourceBuffer_.removeEventListener('updateend', this.onUpdateendCallback_);
+ if (this.sourceBuffer_ && this.mediaSource.readyState === 'open') {
+ this.sourceBuffer_.abort();
+ }
+ }
+ }]);
+ return SourceUpdater;
+}();
+
+var Config = {
+ GOAL_BUFFER_LENGTH: 30,
+ MAX_GOAL_BUFFER_LENGTH: 60,
+ GOAL_BUFFER_LENGTH_RATE: 1,
+ // A fudge factor to apply to advertised playlist bitrates to account for
+ // temporary flucations in client bandwidth
+ BANDWIDTH_VARIANCE: 1.2,
+ // How much of the buffer must be filled before we consider upswitching
+ BUFFER_LOW_WATER_LINE: 0,
+ MAX_BUFFER_LOW_WATER_LINE: 30,
+ BUFFER_LOW_WATER_LINE_RATE: 1
+};
+
+var REQUEST_ERRORS = {
+ FAILURE: 2,
+ TIMEOUT: -101,
+ ABORTED: -102
+};
+
+/**
+ * Turns segment byterange into a string suitable for use in
+ * HTTP Range requests
+ *
+ * @param {Object} byterange - an object with two values defining the start and end
+ * of a byte-range
+ */
+var byterangeStr = function byterangeStr(byterange) {
+ var byterangeStart = void 0;
+ var byterangeEnd = void 0;
+
+ // `byterangeEnd` is one less than `offset + length` because the HTTP range
+ // header uses inclusive ranges
+ byterangeEnd = byterange.offset + byterange.length - 1;
+ byterangeStart = byterange.offset;
+ return 'bytes=' + byterangeStart + '-' + byterangeEnd;
+};
+
+/**
+ * Defines headers for use in the xhr request for a particular segment.
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ */
+var segmentXhrHeaders = function segmentXhrHeaders(segment) {
+ var headers = {};
+
+ if (segment.byterange) {
+ headers.Range = byterangeStr(segment.byterange);
+ }
+ return headers;
+};
+
+/**
+ * Abort all requests
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ */
+var abortAll = function abortAll(activeXhrs) {
+ activeXhrs.forEach(function (xhr$$1) {
+ xhr$$1.abort();
+ });
+};
+
+/**
+ * Gather important bandwidth stats once a request has completed
+ *
+ * @param {Object} request - the XHR request from which to gather stats
+ */
+var getRequestStats = function getRequestStats(request) {
+ return {
+ bandwidth: request.bandwidth,
+ bytesReceived: request.bytesReceived || 0,
+ roundTripTime: request.roundTripTime || 0
+ };
+};
+
+/**
+ * If possible gather bandwidth stats as a request is in
+ * progress
+ *
+ * @param {Event} progressEvent - an event object from an XHR's progress event
+ */
+var getProgressStats = function getProgressStats(progressEvent) {
+ var request = progressEvent.target;
+ var roundTripTime = Date.now() - request.requestTime;
+ var stats = {
+ bandwidth: Infinity,
+ bytesReceived: 0,
+ roundTripTime: roundTripTime || 0
+ };
+
+ stats.bytesReceived = progressEvent.loaded;
+ // This can result in Infinity if stats.roundTripTime is 0 but that is ok
+ // because we should only use bandwidth stats on progress to determine when
+ // abort a request early due to insufficient bandwidth
+ stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
+
+ return stats;
+};
+
+/**
+ * Handle all error conditions in one place and return an object
+ * with all the information
+ *
+ * @param {Error|null} error - if non-null signals an error occured with the XHR
+ * @param {Object} request - the XHR request that possibly generated the error
+ */
+var handleErrors = function handleErrors(error, request) {
+ if (request.timedout) {
+ return {
+ status: request.status,
+ message: 'HLS request timed-out at URL: ' + request.uri,
+ code: REQUEST_ERRORS.TIMEOUT,
+ xhr: request
+ };
+ }
+
+ if (request.aborted) {
+ return {
+ status: request.status,
+ message: 'HLS request aborted at URL: ' + request.uri,
+ code: REQUEST_ERRORS.ABORTED,
+ xhr: request
+ };
+ }
+
+ if (error) {
+ return {
+ status: request.status,
+ message: 'HLS request errored at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ };
+ }
+
+ return null;
+};
+
+/**
+ * Handle responses for key data and convert the key data to the correct format
+ * for the decryption step later
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+var handleKeyResponse = function handleKeyResponse(segment, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ if (response.byteLength !== 16) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Invalid HLS key at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ var view = new DataView(response);
+
+ segment.key.bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
+ return finishProcessingFn(null, segment);
+ };
+};
+
+/**
+ * Handle init-segment responses
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+var handleInitSegmentResponse = function handleInitSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.map.bytes = new Uint8Array(request.response);
+
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ segment.map.timescales = mp4probe.timescale(segment.map.bytes);
+ segment.map.videoTrackIds = mp4probe.videoTrackIds(segment.map.bytes);
+
+ return finishProcessingFn(null, segment);
+ };
+};
+
+/**
+ * Response handler for segment-requests being sure to set the correct
+ * property depending on whether the segment is encryped or not
+ * Also records and keeps track of stats that are used for ABR purposes
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+var handleSegmentResponse = function handleSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+ var parsed = void 0;
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.stats = getRequestStats(request);
+
+ if (segment.key) {
+ segment.encryptedBytes = new Uint8Array(request.response);
+ } else {
+ segment.bytes = new Uint8Array(request.response);
+ }
+
+ // This is likely an FMP4 and has the init segment.
+ // Run through the CaptionParser in case there are captions.
+ if (segment.map && segment.map.bytes) {
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ parsed = captionParser.parse(segment.bytes, segment.map.videoTrackIds, segment.map.timescales);
+
+ if (parsed && parsed.captions) {
+ segment.captionStreams = parsed.captionStreams;
+ segment.fmp4Captions = parsed.captions;
+ }
+ }
+
+ return finishProcessingFn(null, segment);
+ };
+};
+
+/**
+ * Decrypt the segment via the decryption web worker
+ *
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} doneFn - a callback that is executed after decryption has completed
+ */
+var decryptSegment = function decryptSegment(decrypter, segment, doneFn) {
+ var decryptionHandler = function decryptionHandler(event) {
+ if (event.data.source === segment.requestId) {
+ decrypter.removeEventListener('message', decryptionHandler);
+ var decrypted = event.data.decrypted;
+
+ segment.bytes = new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength);
+ return doneFn(null, segment);
+ }
+ };
+
+ decrypter.addEventListener('message', decryptionHandler);
+
+ // this is an encrypted segment
+ // incrementally decrypt the segment
+ decrypter.postMessage(createTransferableMessage({
+ source: segment.requestId,
+ encrypted: segment.encryptedBytes,
+ key: segment.key.bytes,
+ iv: segment.key.iv
+ }), [segment.encryptedBytes.buffer, segment.key.bytes.buffer]);
+};
+
+/**
+ * The purpose of this function is to get the most pertinent error from the
+ * array of errors.
+ * For instance if a timeout and two aborts occur, then the aborts were
+ * likely triggered by the timeout so return that error object.
+ */
+var getMostImportantError = function getMostImportantError(errors) {
+ return errors.reduce(function (prev, err) {
+ return err.code > prev.code ? err : prev;
+ });
+};
+
+/**
+ * This function waits for all XHRs to finish (with either success or failure)
+ * before continueing processing via it's callback. The function gathers errors
+ * from each request into a single errors array so that the error status for
+ * each request can be examined later.
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Function} doneFn - a callback that is executed after all resources have been
+ * downloaded and any decryption completed
+ */
+var waitForCompletion = function waitForCompletion(activeXhrs, decrypter, doneFn) {
+ var errors = [];
+ var count = 0;
+
+ return function (error, segment) {
+ if (error) {
+ // If there are errors, we have to abort any outstanding requests
+ abortAll(activeXhrs);
+ errors.push(error);
+ }
+ count += 1;
+
+ if (count === activeXhrs.length) {
+ // Keep track of when *all* of the requests have completed
+ segment.endOfAllRequests = Date.now();
+
+ if (errors.length > 0) {
+ var worstError = getMostImportantError(errors);
+
+ return doneFn(worstError, segment);
+ }
+ if (segment.encryptedBytes) {
+ return decryptSegment(decrypter, segment, doneFn);
+ }
+ // Otherwise, everything is ready just continue
+ return doneFn(null, segment);
+ }
+ };
+};
+
+/**
+ * Simple progress event callback handler that gathers some stats before
+ * executing a provided callback with the `segment` object
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that is executed each time a progress event
+ * is received
+ * @param {Event} event - the progress event object from XMLHttpRequest
+ */
+var handleProgress = function handleProgress(segment, progressFn) {
+ return function (event) {
+ segment.stats = videojs$1.mergeOptions(segment.stats, getProgressStats(event));
+
+ // record the time that we receive the first byte of data
+ if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
+ segment.stats.firstBytesReceivedAt = Date.now();
+ }
+
+ return progressFn(event, segment);
+ };
+};
+
+/**
+ * Load all resources and does any processing necessary for a media-segment
+ *
+ * Features:
+ * decrypts the media-segment if it has a key uri and an iv
+ * aborts *all* requests if *any* one request fails
+ *
+ * The segment object, at minimum, has the following format:
+ * {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [key]: {
+ * resolvedUri: String
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * iv: {
+ * bytes: Uint32Array
+ * }
+ * },
+ * [map]: {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [bytes]: Uint8Array
+ * }
+ * }
+ * ...where [name] denotes optional properties
+ *
+ * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
+ * @param {Object} xhrOptions - the base options to provide to all xhr requests
+ * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
+ * decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that receives progress events from the main
+ * segment's xhr request
+ * @param {Function} doneFn - a callback that is executed only once all requests have
+ * succeeded or failed
+ * @returns {Function} a function that, when invoked, immediately aborts all
+ * outstanding requests
+ */
+var mediaSegmentRequest = function mediaSegmentRequest(xhr$$1, xhrOptions, decryptionWorker, captionParser, segment, progressFn, doneFn) {
+ var activeXhrs = [];
+ var finishProcessingFn = waitForCompletion(activeXhrs, decryptionWorker, doneFn);
+
+ // optionally, request the decryption key
+ if (segment.key) {
+ var keyRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.key.resolvedUri,
+ responseType: 'arraybuffer'
+ });
+ var keyRequestCallback = handleKeyResponse(segment, finishProcessingFn);
+ var keyXhr = xhr$$1(keyRequestOptions, keyRequestCallback);
+
+ activeXhrs.push(keyXhr);
+ }
+
+ // optionally, request the associated media init segment
+ if (segment.map && !segment.map.bytes) {
+ var initSegmentOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.map.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment.map)
+ });
+ var initSegmentRequestCallback = handleInitSegmentResponse(segment, captionParser, finishProcessingFn);
+ var initSegmentXhr = xhr$$1(initSegmentOptions, initSegmentRequestCallback);
+
+ activeXhrs.push(initSegmentXhr);
+ }
+
+ var segmentRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment)
+ });
+ var segmentRequestCallback = handleSegmentResponse(segment, captionParser, finishProcessingFn);
+ var segmentXhr = xhr$$1(segmentRequestOptions, segmentRequestCallback);
+
+ segmentXhr.addEventListener('progress', handleProgress(segment, progressFn));
+ activeXhrs.push(segmentXhr);
+
+ return function () {
+ return abortAll(activeXhrs);
+ };
+};
+
+// Utilities
+
+/**
+ * Returns the CSS value for the specified property on an element
+ * using `getComputedStyle`. Firefox has a long-standing issue where
+ * getComputedStyle() may return null when running in an iframe with
+ * `display: none`.
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ * @param {HTMLElement} el the htmlelement to work on
+ * @param {string} the proprety to get the style for
+ */
+var safeGetComputedStyle = function safeGetComputedStyle(el, property) {
+ var result = void 0;
+
+ if (!el) {
+ return '';
+ }
+
+ result = window$1.getComputedStyle(el);
+ if (!result) {
+ return '';
+ }
+
+ return result[property];
+};
+
+/**
+ * Resuable stable sort function
+ *
+ * @param {Playlists} array
+ * @param {Function} sortFn Different comparators
+ * @function stableSort
+ */
+var stableSort = function stableSort(array, sortFn) {
+ var newArray = array.slice();
+
+ array.sort(function (left, right) {
+ var cmp = sortFn(left, right);
+
+ if (cmp === 0) {
+ return newArray.indexOf(left) - newArray.indexOf(right);
+ }
+ return cmp;
+ });
+};
+
+/**
+ * A comparator function to sort two playlist object by bandwidth.
+ *
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the bandwidth attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the bandwidth of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {
+ var leftBandwidth = void 0;
+ var rightBandwidth = void 0;
+
+ if (left.attributes.BANDWIDTH) {
+ leftBandwidth = left.attributes.BANDWIDTH;
+ }
+ leftBandwidth = leftBandwidth || window$1.Number.MAX_VALUE;
+ if (right.attributes.BANDWIDTH) {
+ rightBandwidth = right.attributes.BANDWIDTH;
+ }
+ rightBandwidth = rightBandwidth || window$1.Number.MAX_VALUE;
+
+ return leftBandwidth - rightBandwidth;
+};
+
+/**
+ * A comparator function to sort two playlist object by resolution (width).
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the resolution.width attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the resolution.width of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+var comparePlaylistResolution = function comparePlaylistResolution(left, right) {
+ var leftWidth = void 0;
+ var rightWidth = void 0;
+
+ if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
+ leftWidth = left.attributes.RESOLUTION.width;
+ }
+
+ leftWidth = leftWidth || window$1.Number.MAX_VALUE;
+
+ if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+ rightWidth = right.attributes.RESOLUTION.width;
+ }
+
+ rightWidth = rightWidth || window$1.Number.MAX_VALUE;
+
+ // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
+ // have the same media dimensions/ resolution
+ if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
+ return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
+ }
+ return leftWidth - rightWidth;
+};
+
+/**
+ * Chooses the appropriate media playlist based on bandwidth and player size
+ *
+ * @param {Object} master
+ * Object representation of the master manifest
+ * @param {Number} playerBandwidth
+ * Current calculated bandwidth of the player
+ * @param {Number} playerWidth
+ * Current width of the player element
+ * @param {Number} playerHeight
+ * Current height of the player element
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight) {
+ // convert the playlists to an intermediary representation to make comparisons easier
+ var sortedPlaylistReps = master.playlists.map(function (playlist) {
+ var width = void 0;
+ var height = void 0;
+ var bandwidth = void 0;
+
+ width = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
+ height = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
+ bandwidth = playlist.attributes.BANDWIDTH;
+
+ bandwidth = bandwidth || window$1.Number.MAX_VALUE;
+
+ return {
+ bandwidth: bandwidth,
+ width: width,
+ height: height,
+ playlist: playlist
+ };
+ });
+
+ stableSort(sortedPlaylistReps, function (left, right) {
+ return left.bandwidth - right.bandwidth;
+ });
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+ sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isIncompatible(rep.playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return Playlist.isEnabled(rep.playlist);
+ });
+
+ if (!enabledPlaylistReps.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isDisabled(rep.playlist);
+ });
+ }
+
+ // filter out any variant that has greater effective bitrate
+ // than the current estimated bandwidth
+ var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {
+ return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;
+ });
+
+ var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1];
+
+ // get all of the renditions with the same (highest) bandwidth
+ // and then taking the very first element
+ var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ // filter out playlists without resolution information
+ var haveResolution = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.width && rep.height;
+ });
+
+ // sort variants by resolution
+ stableSort(haveResolution, function (left, right) {
+ return left.width - right.width;
+ });
+
+ // if we have the exact resolution as the player use it
+ var resolutionBestRepList = haveResolution.filter(function (rep) {
+ return rep.width === playerWidth && rep.height === playerHeight;
+ });
+
+ highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1];
+ // ensure that we pick the highest bandwidth variant that have exact resolution
+ var resolutionBestRep = resolutionBestRepList.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ var resolutionPlusOneList = void 0;
+ var resolutionPlusOneSmallest = void 0;
+ var resolutionPlusOneRep = void 0;
+
+ // find the smallest variant that is larger than the player
+ // if there is no match of exact resolution
+ if (!resolutionBestRep) {
+ resolutionPlusOneList = haveResolution.filter(function (rep) {
+ return rep.width > playerWidth || rep.height > playerHeight;
+ });
+
+ // find all the variants have the same smallest resolution
+ resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {
+ return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;
+ });
+
+ // ensure that we also pick the highest bandwidth variant that
+ // is just-larger-than the video player
+ highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
+ resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+ }
+
+ // fallback chain of variants
+ var chosenRep = resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+
+ return chosenRep ? chosenRep.playlist : null;
+};
+
+// Playlist Selectors
+
+/**
+ * Chooses the appropriate media playlist based on the most recent
+ * bandwidth estimate and the player size.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+var lastBandwidthSelector = function lastBandwidthSelector() {
+ return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10), parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10));
+};
+
+/**
+ * Chooses the appropriate media playlist based on the potential to rebuffer
+ *
+ * @param {Object} settings
+ * Object of information required to use this selector
+ * @param {Object} settings.master
+ * Object representation of the master manifest
+ * @param {Number} settings.currentTime
+ * The current time of the player
+ * @param {Number} settings.bandwidth
+ * Current measured bandwidth
+ * @param {Number} settings.duration
+ * Duration of the media
+ * @param {Number} settings.segmentDuration
+ * Segment duration to be used in round trip time calculations
+ * @param {Number} settings.timeUntilRebuffer
+ * Time left in seconds until the player has to rebuffer
+ * @param {Number} settings.currentTimeline
+ * The current timeline segments are being loaded from
+ * @param {SyncController} settings.syncController
+ * SyncController for determining if we have a sync point for a given playlist
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The highest bandwidth playlist with the least amount of rebuffering
+ * {Number} return.rebufferingImpact
+ * The amount of time in seconds switching to this playlist will rebuffer. A
+ * negative value means that switching will cause zero rebuffering.
+ */
+var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {
+ var master = settings.master,
+ currentTime = settings.currentTime,
+ bandwidth = settings.bandwidth,
+ duration$$1 = settings.duration,
+ segmentDuration = settings.segmentDuration,
+ timeUntilRebuffer = settings.timeUntilRebuffer,
+ currentTimeline = settings.currentTimeline,
+ syncController = settings.syncController;
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+
+ var compatiblePlaylists = master.playlists.filter(function (playlist) {
+ return !Playlist.isIncompatible(playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
+
+ if (!enabledPlaylists.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylists = compatiblePlaylists.filter(function (playlist) {
+ return !Playlist.isDisabled(playlist);
+ });
+ }
+
+ var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
+
+ var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {
+ var syncPoint = syncController.getSyncPoint(playlist, duration$$1, currentTimeline, currentTime);
+ // If there is no sync point for this playlist, switching to it will require a
+ // sync request first. This will double the request time
+ var numRequests = syncPoint ? 1 : 2;
+ var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
+ var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
+
+ return {
+ playlist: playlist,
+ rebufferingImpact: rebufferingImpact
+ };
+ });
+
+ var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {
+ return estimate.rebufferingImpact <= 0;
+ });
+
+ // Sort by bandwidth DESC
+ stableSort(noRebufferingPlaylists, function (a, b) {
+ return comparePlaylistBandwidth(b.playlist, a.playlist);
+ });
+
+ if (noRebufferingPlaylists.length) {
+ return noRebufferingPlaylists[0];
+ }
+
+ stableSort(rebufferingEstimates, function (a, b) {
+ return a.rebufferingImpact - b.rebufferingImpact;
+ });
+
+ return rebufferingEstimates[0] || null;
+};
+
+/**
+ * Chooses the appropriate media playlist, which in this case is the lowest bitrate
+ * one with video. If no renditions with video exist, return the lowest audio rendition.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The lowest bitrate playlist that contains a video codec. If no such rendition
+ * exists pick the lowest audio rendition.
+ */
+var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations or playback errors
+ var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled);
+
+ // Sort ascending by bitrate
+ stableSort(playlists, function (a, b) {
+ return comparePlaylistBandwidth(a, b);
+ });
+
+ // Parse and assume that playlists with no video codec have no video
+ // (this is not necessarily true, although it is generally true).
+ //
+ // If an entire manifest has no valid videos everything will get filtered
+ // out.
+ var playlistsWithVideo = playlists.filter(function (playlist) {
+ return parseCodecs(playlist.attributes.CODECS).videoCodec;
+ });
+
+ return playlistsWithVideo[0] || null;
+};
+
+/**
+ * Create captions text tracks on video.js if they do not exist
+ *
+ * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+ * @param {Object} tech the video.js tech
+ * @param {Object} captionStreams the caption streams to create
+ * @private
+ */
+var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStreams) {
+ for (var trackId in captionStreams) {
+ if (!inbandTextTracks[trackId]) {
+ tech.trigger({ type: 'usage', name: 'hls-608' });
+ var track = tech.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ inbandTextTracks[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ inbandTextTracks[trackId] = tech.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+};
+
+var addCaptionData = function addCaptionData(_ref) {
+ var inbandTextTracks = _ref.inbandTextTracks,
+ captionArray = _ref.captionArray,
+ timestampOffset = _ref.timestampOffset;
+
+ if (!captionArray) {
+ return;
+ }
+
+ var Cue = window.WebKitDataCue || window.VTTCue;
+
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+ var startTime = caption.startTime;
+ var endTime = caption.endTime;
+
+ if (!inbandTextTracks[track]) {
+ return;
+ }
+
+ startTime += timestampOffset;
+ endTime += timestampOffset;
+
+ inbandTextTracks[track].addCue(new Cue(startTime, endTime, caption.text));
+ });
+};
+
+/**
+ * @file segment-loader.js
+ */
+
+// in ms
+var CHECK_BUFFER_DELAY = 500;
+
+/**
+ * Determines if we should call endOfStream on the media source based
+ * on the state of the buffer or if appened segment was the final
+ * segment in the playlist.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Object} mediaSource the MediaSource object
+ * @param {Number} segmentIndex the index of segment we last appended
+ * @returns {Boolean} do we need to call endOfStream on the MediaSource
+ */
+var detectEndOfStream = function detectEndOfStream(playlist, mediaSource, segmentIndex) {
+ if (!playlist || !mediaSource) {
+ return false;
+ }
+
+ var segments = playlist.segments;
+
+ // determine a few boolean values to help make the branch below easier
+ // to read
+ var appendedLastSegment = segmentIndex === segments.length;
+
+ // if we've buffered to the end of the video, we need to call endOfStream
+ // so that MediaSources can trigger the `ended` event when it runs out of
+ // buffered data instead of waiting for me
+ return playlist.endList && mediaSource.readyState === 'open' && appendedLastSegment;
+};
+
+var finite = function finite(num) {
+ return typeof num === 'number' && isFinite(num);
+};
+
+var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, newSegmentMedia) {
+ // Although these checks should most likely cover non 'main' types, for now it narrows
+ // the scope of our checks.
+ if (loaderType !== 'main' || !startingMedia || !newSegmentMedia) {
+ return null;
+ }
+
+ if (!newSegmentMedia.containsAudio && !newSegmentMedia.containsVideo) {
+ return 'Neither audio nor video found in segment.';
+ }
+
+ if (startingMedia.containsVideo && !newSegmentMedia.containsVideo) {
+ return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ if (!startingMedia.containsVideo && newSegmentMedia.containsVideo) {
+ return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ return null;
+};
+
+/**
+ * Calculates a time value that is safe to remove from the back buffer without interupting
+ * playback.
+ *
+ * @param {TimeRange} seekable
+ * The current seekable range
+ * @param {Number} currentTime
+ * The current time of the player
+ * @param {Number} targetDuration
+ * The target duration of the current playlist
+ * @return {Number}
+ * Time that is safe to remove from the back buffer without interupting playback
+ */
+var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable$$1, currentTime, targetDuration) {
+ var removeToTime = void 0;
+
+ if (seekable$$1.length && seekable$$1.start(0) > 0 && seekable$$1.start(0) < currentTime) {
+ // If we have a seekable range use that as the limit for what can be removed safely
+ removeToTime = seekable$$1.start(0);
+ } else {
+ // otherwise remove anything older than 30 seconds before the current play head
+ removeToTime = currentTime - 30;
+ }
+
+ // Don't allow removing from the buffer within target duration of current time
+ // to avoid the possibility of removing the GOP currently being played which could
+ // cause playback stalls.
+ return Math.min(removeToTime, currentTime - targetDuration);
+};
+
+var segmentInfoString = function segmentInfoString(segmentInfo) {
+ var _segmentInfo$segment = segmentInfo.segment,
+ start = _segmentInfo$segment.start,
+ end = _segmentInfo$segment.end,
+ _segmentInfo$playlist = segmentInfo.playlist,
+ seq = _segmentInfo$playlist.mediaSequence,
+ id = _segmentInfo$playlist.id,
+ _segmentInfo$playlist2 = _segmentInfo$playlist.segments,
+ segments = _segmentInfo$playlist2 === undefined ? [] : _segmentInfo$playlist2,
+ index = segmentInfo.mediaIndex,
+ timeline = segmentInfo.timeline;
+
+ return ['appending [' + index + '] of [' + seq + ', ' + (seq + segments.length) + '] from playlist [' + id + ']', '[' + start + ' => ' + end + '] in timeline [' + timeline + ']'].join(' ');
+};
+
+/**
+ * An object that manages segment loading and appending.
+ *
+ * @class SegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+var SegmentLoader = function (_videojs$EventTarget) {
+ inherits$1(SegmentLoader, _videojs$EventTarget);
+
+ function SegmentLoader(settings) {
+ classCallCheck$1(this, SegmentLoader);
+
+ // check pre-conditions
+ var _this = possibleConstructorReturn$1(this, (SegmentLoader.__proto__ || Object.getPrototypeOf(SegmentLoader)).call(this));
+
+ if (!settings) {
+ throw new TypeError('Initialization settings are required');
+ }
+ if (typeof settings.currentTime !== 'function') {
+ throw new TypeError('No currentTime getter specified');
+ }
+ if (!settings.mediaSource) {
+ throw new TypeError('No MediaSource specified');
+ }
+ // public properties
+ _this.bandwidth = settings.bandwidth;
+ _this.throughput = { rate: 0, count: 0 };
+ _this.roundTrip = NaN;
+ _this.resetStats_();
+ _this.mediaIndex = null;
+
+ // private settings
+ _this.hasPlayed_ = settings.hasPlayed;
+ _this.currentTime_ = settings.currentTime;
+ _this.seekable_ = settings.seekable;
+ _this.seeking_ = settings.seeking;
+ _this.duration_ = settings.duration;
+ _this.mediaSource_ = settings.mediaSource;
+ _this.hls_ = settings.hls;
+ _this.loaderType_ = settings.loaderType;
+ _this.startingMedia_ = void 0;
+ _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
+ _this.goalBufferLength_ = settings.goalBufferLength;
+ _this.sourceType_ = settings.sourceType;
+ _this.inbandTextTracks_ = settings.inbandTextTracks;
+ _this.state_ = 'INIT';
+
+ // private instance variables
+ _this.checkBufferTimeout_ = null;
+ _this.error_ = void 0;
+ _this.currentTimeline_ = -1;
+ _this.pendingSegment_ = null;
+ _this.mimeType_ = null;
+ _this.sourceUpdater_ = null;
+ _this.xhrOptions_ = null;
+
+ // Fragmented mp4 playback
+ _this.activeInitSegmentId_ = null;
+ _this.initSegments_ = {};
+ // Fmp4 CaptionParser
+ _this.captionParser_ = new mp4.CaptionParser();
+
+ _this.decrypter_ = settings.decrypter;
+
+ // Manages the tracking and generation of sync-points, mappings
+ // between a time in the display time and a segment index within
+ // a playlist
+ _this.syncController_ = settings.syncController;
+ _this.syncPoint_ = {
+ segmentIndex: 0,
+ time: 0
+ };
+
+ _this.syncController_.on('syncinfoupdate', function () {
+ return _this.trigger('syncinfoupdate');
+ });
+
+ _this.mediaSource_.addEventListener('sourceopen', function () {
+ return _this.ended_ = false;
+ });
+
+ // ...for determining the fetch location
+ _this.fetchAtBuffer_ = false;
+
+ _this.logger_ = logger('SegmentLoader[' + _this.loaderType_ + ']');
+
+ Object.defineProperty(_this, 'state', {
+ get: function get$$1() {
+ return this.state_;
+ },
+ set: function set$$1(newState) {
+ if (newState !== this.state_) {
+ this.logger_(this.state_ + ' -> ' + newState);
+ this.state_ = newState;
+ }
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * reset all of our media stats
+ *
+ * @private
+ */
+
+ createClass$1(SegmentLoader, [{
+ key: 'resetStats_',
+ value: function resetStats_() {
+ this.mediaBytesTransferred = 0;
+ this.mediaRequests = 0;
+ this.mediaRequestsAborted = 0;
+ this.mediaRequestsTimedout = 0;
+ this.mediaRequestsErrored = 0;
+ this.mediaTransferDuration = 0;
+ this.mediaSecondsLoaded = 0;
+ }
+
+ /**
+ * dispose of the SegmentLoader and reset to the default state
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.state = 'DISPOSED';
+ this.pause();
+ this.abort_();
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.dispose();
+ }
+ this.resetStats_();
+ this.captionParser_.reset();
+ }
+
+ /**
+ * abort anything that is currently doing on with the SegmentLoader
+ * and reset to a default state
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.state !== 'WAITING') {
+ if (this.pendingSegment_) {
+ this.pendingSegment_ = null;
+ }
+ return;
+ }
+
+ this.abort_();
+
+ // We aborted the requests we were waiting on, so reset the loader's state to READY
+ // since we are no longer "waiting" on any requests. XHR callback is not always run
+ // when the request is aborted. This will prevent the loader from being stuck in the
+ // WAITING state indefinitely.
+ this.state = 'READY';
+
+ // don't wait for buffer check timeouts to begin fetching the
+ // next segment
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * abort all pending xhr requests and null any pending segements
+ *
+ * @private
+ */
+
+ }, {
+ key: 'abort_',
+ value: function abort_() {
+ if (this.pendingSegment_) {
+ this.pendingSegment_.abortRequests();
+ }
+
+ // clear out the segment being processed
+ this.pendingSegment_ = null;
+ }
+
+ /**
+ * set an error on the segment loader and null out any pending segements
+ *
+ * @param {Error} error the error to set on the SegmentLoader
+ * @return {Error} the error that was set or that is currently set
+ */
+
+ }, {
+ key: 'error',
+ value: function error(_error) {
+ if (typeof _error !== 'undefined') {
+ this.error_ = _error;
+ }
+
+ this.pendingSegment_ = null;
+ return this.error_;
+ }
+ }, {
+ key: 'endOfStream',
+ value: function endOfStream() {
+ this.ended_ = true;
+ this.pause();
+ this.trigger('ended');
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ }, {
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.sourceUpdater_) {
+ return videojs$1.createTimeRanges();
+ }
+
+ return this.sourceUpdater_.buffered();
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: map.bytes,
+ timescales: map.timescales,
+ videoTrackIds: map.videoTrackIds
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && (
+ // the source updater is created when init_ is called, so either having a
+ // source updater or being in the INIT state with a mimeType is enough
+ // to say we have all the needed configuration to start loading.
+ this.sourceUpdater_ || this.mimeType_ && this.state === 'INIT') && !this.paused();
+ }
+
+ /**
+ * load a playlist and start to fill the buffer
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ // un-pause
+ this.monitorBuffer_();
+
+ // if we don't have a playlist yet, keep waiting for one to be
+ // specified
+ if (!this.playlist_) {
+ return;
+ }
+
+ // not sure if this is the best place for this
+ this.syncController_.setDateTimeMapping(this.playlist_);
+
+ // if all the configuration is ready, initialize and begin loading
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ // if we're in the middle of processing a segment already, don't
+ // kick off an additional segment request
+ if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
+ return;
+ }
+
+ this.state = 'READY';
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.sourceUpdater_ = new SourceUpdater(this.mediaSource_, this.mimeType_, this.loaderType_, this.sourceBufferEmitter_);
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * set a playlist on the segment loader
+ *
+ * @param {PlaylistLoader} media the playlist to set on the segment loader
+ */
+
+ }, {
+ key: 'playlist',
+ value: function playlist(newPlaylist) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ if (!newPlaylist) {
+ return;
+ }
+
+ var oldPlaylist = this.playlist_;
+ var segmentInfo = this.pendingSegment_;
+
+ this.playlist_ = newPlaylist;
+ this.xhrOptions_ = options;
+
+ // when we haven't started playing yet, the start of a live playlist
+ // is always our zero-time so force a sync update each time the playlist
+ // is refreshed from the server
+ if (!this.hasPlayed_()) {
+ newPlaylist.syncInfo = {
+ mediaSequence: newPlaylist.mediaSequence,
+ time: 0
+ };
+ }
+
+ var oldId = oldPlaylist ? oldPlaylist.id : null;
+
+ this.logger_('playlist update [' + oldId + ' => ' + newPlaylist.id + ']');
+
+ // in VOD, this is always a rendition switch (or we updated our syncInfo above)
+ // in LIVE, we always want to update with new playlists (including refreshes)
+ this.trigger('syncinfoupdate');
+
+ // if we were unpaused but waiting for a playlist, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
+ if (this.mediaIndex !== null) {
+ // we must "resync" the segment loader when we switch renditions and
+ // the segment loader is already synced to the previous rendition
+ this.resyncLoader();
+ }
+
+ // the rest of this function depends on `oldPlaylist` being defined
+ return;
+ }
+
+ // we reloaded the same playlist so we are in a live scenario
+ // and we will likely need to adjust the mediaIndex
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ this.logger_('live window shift [' + mediaSequenceDiff + ']');
+
+ // update the mediaIndex on the SegmentLoader
+ // this is important because we can abort a request and this value must be
+ // equal to the last appended mediaIndex
+ if (this.mediaIndex !== null) {
+ this.mediaIndex -= mediaSequenceDiff;
+ }
+
+ // update the mediaIndex on the SegmentInfo object
+ // this is important because we will update this.mediaIndex with this value
+ // in `handleUpdateEnd_` after the segment has been successfully appended
+ if (segmentInfo) {
+ segmentInfo.mediaIndex -= mediaSequenceDiff;
+
+ // we need to update the referenced segment so that timing information is
+ // saved for the new playlist's segment, however, if the segment fell off the
+ // playlist, we can leave the old reference and just lose the timing info
+ if (segmentInfo.mediaIndex >= 0) {
+ segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
+ }
+ }
+
+ this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
+ }
+
+ /**
+ * Prevent the loader from fetching additional segments. If there
+ * is a segment request outstanding, it will finish processing
+ * before the loader halts. A segment loader can be unpaused by
+ * calling load().
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+
+ this.checkBufferTimeout_ = null;
+ }
+ }
+
+ /**
+ * Returns whether the segment loader is fetching additional
+ * segments when given the opportunity. This property can be
+ * modified through calls to pause() and load().
+ */
+
+ }, {
+ key: 'paused',
+ value: function paused() {
+ return this.checkBufferTimeout_ === null;
+ }
+
+ /**
+ * create/set the following mimetype on the SourceBuffer through a
+ * SourceUpdater
+ *
+ * @param {String} mimeType the mime type string to use
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer
+ * is added to the media source
+ */
+
+ }, {
+ key: 'mimeType',
+ value: function mimeType(_mimeType, sourceBufferEmitter) {
+ if (this.mimeType_) {
+ return;
+ }
+
+ this.mimeType_ = _mimeType;
+ this.sourceBufferEmitter_ = sourceBufferEmitter;
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+ }
+
+ /**
+ * Delete all the buffered data and reset the SegmentLoader
+ * @param {Function} [done] an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'resetEverything',
+ value: function resetEverything(done) {
+ this.ended_ = false;
+ this.resetLoader();
+ this.remove(0, this.duration_(), done);
+ // clears fmp4 captions
+ this.captionParser_.clearAllCaptions();
+ this.trigger('reseteverything');
+ }
+
+ /**
+ * Force the SegmentLoader to resync and start loading around the currentTime instead
+ * of starting at the end of the buffer
+ *
+ * Useful for fast quality changes
+ */
+
+ }, {
+ key: 'resetLoader',
+ value: function resetLoader() {
+ this.fetchAtBuffer_ = false;
+ this.resyncLoader();
+ }
+
+ /**
+ * Force the SegmentLoader to restart synchronization and make a conservative guess
+ * before returning to the simple walk-forward method
+ */
+
+ }, {
+ key: 'resyncLoader',
+ value: function resyncLoader() {
+ this.mediaIndex = null;
+ this.syncPoint_ = null;
+ this.abort();
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ * @param {Function} [done] - an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end, done) {
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.remove(start, end, done);
+ }
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ if (this.inbandTextTracks_) {
+ for (var id in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[id]);
+ }
+ }
+ }
+
+ /**
+ * (re-)schedule monitorBufferTick_ to run as soon as possible
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBuffer_',
+ value: function monitorBuffer_() {
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window$1.setTimeout(this.monitorBufferTick_.bind(this), 1);
+ }
+
+ /**
+ * As long as the SegmentLoader is in the READY state, periodically
+ * invoke fillBuffer_().
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBufferTick_',
+ value: function monitorBufferTick_() {
+ if (this.state === 'READY') {
+ this.fillBuffer_();
+ }
+
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window$1.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ if (this.sourceUpdater_.updating()) {
+ return;
+ }
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ var isEndOfStream = detectEndOfStream(this.playlist_, this.mediaSource_, segmentInfo.mediaIndex);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ return;
+ }
+
+ if (segmentInfo.mediaIndex === this.playlist_.segments.length - 1 && this.mediaSource_.readyState === 'ended' && !this.seeking_()) {
+ return;
+ }
+
+ // We will need to change timestampOffset of the sourceBuffer if either of
+ // the following conditions are true:
+ // - The segment.timeline !== this.currentTimeline
+ // (we are crossing a discontinuity somehow)
+ // - The "timestampOffset" for the start of this segment is less than
+ // the currently set timestampOffset
+ // Also, clear captions if we are crossing a discontinuity boundary
+ if (segmentInfo.timeline !== this.currentTimeline_ || segmentInfo.startOfSegment !== null && segmentInfo.startOfSegment < this.sourceUpdater_.timestampOffset()) {
+ this.syncController_.reset();
+ segmentInfo.timestampOffset = segmentInfo.startOfSegment;
+ this.captionParser_.clearAllCaptions();
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Determines what segment request should be made, given current playback
+ * state.
+ *
+ * @param {TimeRanges} buffered - the state of the buffer
+ * @param {Object} playlist - the playlist object to fetch segments from
+ * @param {Number} mediaIndex - the previous mediaIndex fetched or null
+ * @param {Boolean} hasPlayed - a flag indicating whether we have played or not
+ * @param {Number} currentTime - the playback position in seconds
+ * @param {Object} syncPoint - a segment info object that describes the
+ * @returns {Object} a segment request object that describes the segment to load
+ */
+
+ }, {
+ key: 'checkBuffer_',
+ value: function checkBuffer_(buffered, playlist, mediaIndex, hasPlayed, currentTime, syncPoint) {
+ var lastBufferedEnd = 0;
+ var startOfSegment = void 0;
+
+ if (buffered.length) {
+ lastBufferedEnd = buffered.end(buffered.length - 1);
+ }
+
+ var bufferedTime = Math.max(0, lastBufferedEnd - currentTime);
+
+ if (!playlist.segments.length) {
+ return null;
+ }
+
+ // if there is plenty of content buffered, and the video has
+ // been played before relax for awhile
+ if (bufferedTime >= this.goalBufferLength_()) {
+ return null;
+ }
+
+ // if the video has not yet played once, and we already have
+ // one segment downloaded do nothing
+ if (!hasPlayed && bufferedTime >= 1) {
+ return null;
+ }
+
+ // When the syncPoint is null, there is no way of determining a good
+ // conservative segment index to fetch from
+ // The best thing to do here is to get the kind of sync-point data by
+ // making a request
+ if (syncPoint === null) {
+ mediaIndex = this.getSyncSegmentCandidate_(playlist);
+ return this.generateSegmentInfo_(playlist, mediaIndex, null, true);
+ }
+
+ // Under normal playback conditions fetching is a simple walk forward
+ if (mediaIndex !== null) {
+ var segment = playlist.segments[mediaIndex];
+
+ if (segment && segment.end) {
+ startOfSegment = segment.end;
+ } else {
+ startOfSegment = lastBufferedEnd;
+ }
+ return this.generateSegmentInfo_(playlist, mediaIndex + 1, startOfSegment, false);
+ }
+
+ // There is a sync-point but the lack of a mediaIndex indicates that
+ // we need to make a good conservative guess about which segment to
+ // fetch
+ if (this.fetchAtBuffer_) {
+ // Find the segment containing the end of the buffer
+ var mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, lastBufferedEnd, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = mediaSourceInfo.mediaIndex;
+ startOfSegment = mediaSourceInfo.startTime;
+ } else {
+ // Find the segment containing currentTime
+ var _mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, currentTime, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = _mediaSourceInfo.mediaIndex;
+ startOfSegment = _mediaSourceInfo.startTime;
+ }
+
+ return this.generateSegmentInfo_(playlist, mediaIndex, startOfSegment, false);
+ }
+
+ /**
+ * The segment loader has no recourse except to fetch a segment in the
+ * current playlist and use the internal timestamps in that segment to
+ * generate a syncPoint. This function returns a good candidate index
+ * for that process.
+ *
+ * @param {Object} playlist - the playlist object to look for a
+ * @returns {Number} An index of a segment from the playlist to load
+ */
+
+ }, {
+ key: 'getSyncSegmentCandidate_',
+ value: function getSyncSegmentCandidate_(playlist) {
+ var _this2 = this;
+
+ if (this.currentTimeline_ === -1) {
+ return 0;
+ }
+
+ var segmentIndexArray = playlist.segments.map(function (s, i) {
+ return {
+ timeline: s.timeline,
+ segmentIndex: i
+ };
+ }).filter(function (s) {
+ return s.timeline === _this2.currentTimeline_;
+ });
+
+ if (segmentIndexArray.length) {
+ return segmentIndexArray[Math.min(segmentIndexArray.length - 1, 1)].segmentIndex;
+ }
+
+ return Math.max(playlist.segments.length - 1, 0);
+ }
+ }, {
+ key: 'generateSegmentInfo_',
+ value: function generateSegmentInfo_(playlist, mediaIndex, startOfSegment, isSyncRequest) {
+ if (mediaIndex < 0 || mediaIndex >= playlist.segments.length) {
+ return null;
+ }
+
+ var segment = playlist.segments[mediaIndex];
+
+ return {
+ requestId: 'segment-loader-' + Math.random(),
+ // resolve the segment URL relative to the playlist
+ uri: segment.resolvedUri,
+ // the segment's mediaIndex at the time it was requested
+ mediaIndex: mediaIndex,
+ // whether or not to update the SegmentLoader's state with this
+ // segment's mediaIndex
+ isSyncRequest: isSyncRequest,
+ startOfSegment: startOfSegment,
+ // the segment's playlist
+ playlist: playlist,
+ // unencrypted bytes of the segment
+ bytes: null,
+ // when a key is defined for this segment, the encrypted bytes
+ encryptedBytes: null,
+ // The target timestampOffset for this segment when we append it
+ // to the source buffer
+ timestampOffset: null,
+ // The timeline that the segment is in
+ timeline: segment.timeline,
+ // The expected duration of the segment in seconds
+ duration: segment.duration,
+ // retain the segment in case the playlist updates while doing an async process
+ segment: segment
+ };
+ }
+
+ /**
+ * Determines if the network has enough bandwidth to complete the current segment
+ * request in a timely manner. If not, the request will be aborted early and bandwidth
+ * updated to trigger a playlist switch.
+ *
+ * @param {Object} stats
+ * Object containing stats about the request timing and size
+ * @return {Boolean} True if the request was aborted, false otherwise
+ * @private
+ */
+
+ }, {
+ key: 'abortRequestEarly_',
+ value: function abortRequestEarly_(stats) {
+ if (this.hls_.tech_.paused() ||
+ // Don't abort if the current playlist is on the lowestEnabledRendition
+ // TODO: Replace using timeout with a boolean indicating whether this playlist is
+ // the lowestEnabledRendition.
+ !this.xhrOptions_.timeout ||
+ // Don't abort if we have no bandwidth information to estimate segment sizes
+ !this.playlist_.attributes.BANDWIDTH) {
+ return false;
+ }
+
+ // Wait at least 1 second since the first byte of data has been received before
+ // using the calculated bandwidth from the progress event to allow the bitrate
+ // to stabilize
+ if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
+ return false;
+ }
+
+ var currentTime = this.currentTime_();
+ var measuredBandwidth = stats.bandwidth;
+ var segmentDuration = this.pendingSegment_.duration;
+
+ var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived);
+
+ // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
+ // if we are only left with less than 1 second when the request completes.
+ // A negative timeUntilRebuffering indicates we are already rebuffering
+ var timeUntilRebuffer$$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.hls_.tech_.playbackRate()) - 1;
+
+ // Only consider aborting early if the estimated time to finish the download
+ // is larger than the estimated time until the player runs out of forward buffer
+ if (requestTimeRemaining <= timeUntilRebuffer$$1) {
+ return false;
+ }
+
+ var switchCandidate = minRebufferMaxBandwidthSelector({
+ master: this.hls_.playlists.master,
+ currentTime: currentTime,
+ bandwidth: measuredBandwidth,
+ duration: this.duration_(),
+ segmentDuration: segmentDuration,
+ timeUntilRebuffer: timeUntilRebuffer$$1,
+ currentTimeline: this.currentTimeline_,
+ syncController: this.syncController_
+ });
+
+ if (!switchCandidate) {
+ return;
+ }
+
+ var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$$1;
+
+ var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
+
+ var minimumTimeSaving = 0.5;
+
+ // If we are already rebuffering, increase the amount of variance we add to the
+ // potential round trip time of the new request so that we are not too aggressive
+ // with switching to a playlist that might save us a fraction of a second.
+ if (timeUntilRebuffer$$1 <= TIME_FUDGE_FACTOR) {
+ minimumTimeSaving = 1;
+ }
+
+ if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
+ return false;
+ }
+
+ // set the bandwidth to that of the desired playlist being sure to scale by
+ // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
+ // don't trigger a bandwidthupdate as the bandwidth is artifial
+ this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
+ this.abort();
+ this.trigger('earlyabort');
+ return true;
+ }
+
+ /**
+ * XHR `progress` event handler
+ *
+ * @param {Event}
+ * The XHR `progress` event
+ * @param {Object} simpleSegment
+ * A simplified segment object copy
+ * @private
+ */
+
+ }, {
+ key: 'handleProgress_',
+ value: function handleProgress_(event, simpleSegment) {
+ if (!this.pendingSegment_ || simpleSegment.requestId !== this.pendingSegment_.requestId || this.abortRequestEarly_(simpleSegment.stats)) {
+ return;
+ }
+
+ this.trigger('progress');
+ }
+
+ /**
+ * load a specific segment from a request into the buffer
+ *
+ * @private
+ */
+
+ }, {
+ key: 'loadSegment_',
+ value: function loadSegment_(segmentInfo) {
+ this.state = 'WAITING';
+ this.pendingSegment_ = segmentInfo;
+ this.trimBackBuffer_(segmentInfo);
+
+ segmentInfo.abortRequests = mediaSegmentRequest(this.hls_.xhr, this.xhrOptions_, this.decrypter_, this.captionParser_, this.createSimplifiedSegmentObj_(segmentInfo),
+ // progress callback
+ this.handleProgress_.bind(this), this.segmentRequestFinished_.bind(this));
+ }
+
+ /**
+ * trim the back buffer so that we don't have too much data
+ * in the source buffer
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ */
+
+ }, {
+ key: 'trimBackBuffer_',
+ value: function trimBackBuffer_(segmentInfo) {
+ var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10);
+
+ // Chrome has a hard limit of 150MB of
+ // buffer and a very conservative "garbage collector"
+ // We manually clear out the old buffer to ensure
+ // we don't trigger the QuotaExceeded error
+ // on the source buffer during subsequent appends
+
+ if (removeToTime > 0) {
+ this.remove(0, removeToTime);
+ }
+ }
+
+ /**
+ * created a simplified copy of the segment object with just the
+ * information necessary to perform the XHR and decryption
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ * @returns {Object} a simplified segment object copy
+ */
+
+ }, {
+ key: 'createSimplifiedSegmentObj_',
+ value: function createSimplifiedSegmentObj_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var simpleSegment = {
+ resolvedUri: segment.resolvedUri,
+ byterange: segment.byterange,
+ requestId: segmentInfo.requestId
+ };
+
+ if (segment.key) {
+ // if the media sequence is greater than 2^32, the IV will be incorrect
+ // assuming 10s segments, that would be about 1300 years
+ var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
+
+ simpleSegment.key = {
+ resolvedUri: segment.key.resolvedUri,
+ iv: iv
+ };
+ }
+
+ if (segment.map) {
+ simpleSegment.map = this.initSegment(segment.map);
+ }
+
+ return simpleSegment;
+ }
+
+ /**
+ * Handle the callback from the segmentRequest function and set the
+ * associated SegmentLoader state and errors if necessary
+ *
+ * @private
+ */
+
+ }, {
+ key: 'segmentRequestFinished_',
+ value: function segmentRequestFinished_(error, simpleSegment) {
+ // every request counts as a media request even if it has been aborted
+ // or canceled due to a timeout
+ this.mediaRequests += 1;
+
+ if (simpleSegment.stats) {
+ this.mediaBytesTransferred += simpleSegment.stats.bytesReceived;
+ this.mediaTransferDuration += simpleSegment.stats.roundTripTime;
+ }
+
+ // The request was aborted and the SegmentLoader has already been reset
+ if (!this.pendingSegment_) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ // the request was aborted and the SegmentLoader has already started
+ // another request. this can happen when the timeout for an aborted
+ // request triggers due to a limitation in the XHR library
+ // do not count this as any sort of request or we risk double-counting
+ if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
+ return;
+ }
+
+ // an error occurred from the active pendingSegment_ so reset everything
+ if (error) {
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+
+ // the requests were aborted just record the aborted stat and exit
+ // this is not a true error condition and nothing corrective needs
+ // to be done
+ if (error.code === REQUEST_ERRORS.ABORTED) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ this.pause();
+
+ // the error is really just that at least one of the requests timed-out
+ // set the bandwidth to a very low value and trigger an ABR switch to
+ // take emergency action
+ if (error.code === REQUEST_ERRORS.TIMEOUT) {
+ this.mediaRequestsTimedout += 1;
+ this.bandwidth = 1;
+ this.roundTrip = NaN;
+ this.trigger('bandwidthupdate');
+ return;
+ }
+
+ // if control-flow has arrived here, then the error is real
+ // emit an error event to blacklist the current playlist
+ this.mediaRequestsErrored += 1;
+ this.error(error);
+ this.trigger('error');
+ return;
+ }
+
+ // the response was a success so set any bandwidth stats the request
+ // generated for ABR purposes
+ this.bandwidth = simpleSegment.stats.bandwidth;
+ this.roundTrip = simpleSegment.stats.roundTripTime;
+
+ // if this request included an initialization segment, save that data
+ // to the initSegment cache
+ if (simpleSegment.map) {
+ simpleSegment.map = this.initSegment(simpleSegment.map, true);
+ }
+
+ this.processSegmentResponse_(simpleSegment);
+ }
+
+ /**
+ * Move any important data from the simplified segment object
+ * back to the real segment object for future phases
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processSegmentResponse_',
+ value: function processSegmentResponse_(simpleSegment) {
+ var segmentInfo = this.pendingSegment_;
+
+ segmentInfo.bytes = simpleSegment.bytes;
+ if (simpleSegment.map) {
+ segmentInfo.segment.map.bytes = simpleSegment.map.bytes;
+ }
+
+ segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
+
+ // This has fmp4 captions, add them to text tracks
+ if (simpleSegment.fmp4Captions) {
+ createCaptionsTrackIfNotExists(this.inbandTextTracks_, this.hls_.tech_, simpleSegment.captionStreams);
+ addCaptionData({
+ inbandTextTracks: this.inbandTextTracks_,
+ captionArray: simpleSegment.fmp4Captions,
+ // fmp4s will not have a timestamp offset
+ timestampOffset: 0
+ });
+ // Reset stored captions since we added parsed
+ // captions to a text track at this point
+ this.captionParser_.clearParsedCaptions();
+ }
+
+ this.handleSegment_();
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var timingInfo = this.syncController_.probeSegmentInfo(segmentInfo);
+
+ // When we have our first timing info, determine what media types this loader is
+ // dealing with. Although we're maintaining extra state, it helps to preserve the
+ // separation of segment loader from the actual source buffers.
+ if (typeof this.startingMedia_ === 'undefined' && timingInfo && (
+ // Guard against cases where we're not getting timing info at all until we are
+ // certain that all streams will provide it.
+ timingInfo.containsAudio || timingInfo.containsVideo)) {
+ this.startingMedia_ = {
+ containsAudio: timingInfo.containsAudio,
+ containsVideo: timingInfo.containsVideo
+ };
+ }
+
+ var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.startingMedia_, timingInfo);
+
+ if (illegalMediaSwitchError) {
+ this.error({
+ message: illegalMediaSwitchError,
+ blacklistDuration: Infinity
+ });
+ this.trigger('error');
+ return;
+ }
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ if (segmentInfo.timestampOffset !== null && segmentInfo.timestampOffset !== this.sourceUpdater_.timestampOffset()) {
+ this.sourceUpdater_.timestampOffset(segmentInfo.timestampOffset);
+ // fired when a timestamp offset is set in HLS (can also identify discontinuities)
+ this.trigger('timestampoffset');
+ }
+
+ var timelineMapping = this.syncController_.mappingForTimeline(segmentInfo.timeline);
+
+ if (timelineMapping !== null) {
+ this.trigger({
+ type: 'segmenttimemapping',
+ mapping: timelineMapping
+ });
+ }
+
+ this.state = 'APPENDING';
+
+ // if the media initialization segment is changing, append it
+ // before the content segment
+ if (segment.map) {
+ var initId = initSegmentId(segment.map);
+
+ if (!this.activeInitSegmentId_ || this.activeInitSegmentId_ !== initId) {
+ var initSegment = this.initSegment(segment.map);
+
+ this.sourceUpdater_.appendBuffer(initSegment.bytes, function () {
+ _this3.activeInitSegmentId_ = initId;
+ });
+ }
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+ if (typeof segment.start === 'number' && typeof segment.end === 'number') {
+ this.mediaSecondsLoaded += segment.end - segment.start;
+ } else {
+ this.mediaSecondsLoaded += segment.duration;
+ }
+
+ this.logger_(segmentInfoString(segmentInfo));
+
+ this.sourceUpdater_.appendBuffer(segmentInfo.bytes, this.handleUpdateEnd_.bind(this));
+ }
+
+ /**
+ * callback to run when appendBuffer is finished. detects if we are
+ * in a good state to do things with the data we got, or if we need
+ * to wait for more
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleUpdateEnd_',
+ value: function handleUpdateEnd_() {
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var isWalkingForward = this.mediaIndex !== null;
+
+ this.pendingSegment_ = null;
+ this.recordThroughput_(segmentInfo);
+ this.addSegmentMetadataCue_(segmentInfo);
+
+ this.state = 'READY';
+
+ this.mediaIndex = segmentInfo.mediaIndex;
+ this.fetchAtBuffer_ = true;
+ this.currentTimeline_ = segmentInfo.timeline;
+
+ // We must update the syncinfo to recalculate the seekable range before
+ // the following conditional otherwise it may consider this a bad "guess"
+ // and attempt to resync when the post-update seekable window and live
+ // point would mean that this was the perfect segment to fetch
+ this.trigger('syncinfoupdate');
+
+ // If we previously appended a segment that ends more than 3 targetDurations before
+ // the currentTime_ that means that our conservative guess was too conservative.
+ // In that case, reset the loader state so that we try to use any information gained
+ // from the previous request to create a new, more accurate, sync-point.
+ if (segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3) {
+ this.resetEverything();
+ return;
+ }
+
+ // Don't do a rendition switch unless we have enough time to get a sync segment
+ // and conservatively guess
+ if (isWalkingForward) {
+ this.trigger('bandwidthupdate');
+ }
+ this.trigger('progress');
+
+ // any time an update finishes and the last segment is in the
+ // buffer, end the stream. this ensures the "ended" event will
+ // fire if playback reaches that point.
+ var isEndOfStream = detectEndOfStream(segmentInfo.playlist, this.mediaSource_, segmentInfo.mediaIndex + 1);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ }
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * Records the current throughput of the decrypt, transmux, and append
+ * portion of the semgment pipeline. `throughput.rate` is a the cumulative
+ * moving average of the throughput. `throughput.count` is the number of
+ * data points in the average.
+ *
+ * @private
+ * @param {Object} segmentInfo the object returned by loadSegment
+ */
+
+ }, {
+ key: 'recordThroughput_',
+ value: function recordThroughput_(segmentInfo) {
+ var rate = this.throughput.rate;
+ // Add one to the time to ensure that we don't accidentally attempt to divide
+ // by zero in the case where the throughput is ridiculously high
+ var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1;
+ // Multiply by 8000 to convert from bytes/millisecond to bits/second
+ var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000);
+
+ // This is just a cumulative moving average calculation:
+ // newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
+ this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
+ }
+
+ /**
+ * Adds a cue to the segment-metadata track with some metadata information about the
+ * segment
+ *
+ * @private
+ * @param {Object} segmentInfo
+ * the object returned by loadSegment
+ * @method addSegmentMetadataCue_
+ */
+
+ }, {
+ key: 'addSegmentMetadataCue_',
+ value: function addSegmentMetadataCue_(segmentInfo) {
+ if (!this.segmentMetadataTrack_) {
+ return;
+ }
+
+ var segment = segmentInfo.segment;
+ var start = segment.start;
+ var end = segment.end;
+
+ // Do not try adding the cue if the start and end times are invalid.
+ if (!finite(start) || !finite(end)) {
+ return;
+ }
+
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ var Cue = window$1.WebKitDataCue || window$1.VTTCue;
+ var value = {
+ bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
+ resolution: segmentInfo.playlist.attributes.RESOLUTION,
+ codecs: segmentInfo.playlist.attributes.CODECS,
+ byteLength: segmentInfo.byteLength,
+ uri: segmentInfo.uri,
+ timeline: segmentInfo.timeline,
+ playlist: segmentInfo.playlist.uri,
+ start: start,
+ end: end
+ };
+ var data = JSON.stringify(value);
+ var cue = new Cue(start, end, data);
+
+ // Attach the metadata to the value property of the cue to keep consistency between
+ // the differences of WebKitDataCue in safari and VTTCue in other browsers
+ cue.value = value;
+
+ this.segmentMetadataTrack_.addCue(cue);
+ }
+ }]);
+ return SegmentLoader;
+}(videojs$1.EventTarget);
+
+var uint8ToUtf8 = function uint8ToUtf8(uintArray) {
+ return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
+};
+
+/**
+ * @file vtt-segment-loader.js
+ */
+
+var VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(function (char) {
+ return char.charCodeAt(0);
+}));
+
+/**
+ * An object that manages segment loading and appending.
+ *
+ * @class VTTSegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+var VTTSegmentLoader = function (_SegmentLoader) {
+ inherits$1(VTTSegmentLoader, _SegmentLoader);
+
+ function VTTSegmentLoader(settings) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck$1(this, VTTSegmentLoader);
+
+ // SegmentLoader requires a MediaSource be specified or it will throw an error;
+ // however, VTTSegmentLoader has no need of a media source, so delete the reference
+ var _this = possibleConstructorReturn$1(this, (VTTSegmentLoader.__proto__ || Object.getPrototypeOf(VTTSegmentLoader)).call(this, settings, options));
+
+ _this.mediaSource_ = null;
+
+ _this.subtitlesTrack_ = null;
+ return _this;
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ createClass$1(VTTSegmentLoader, [{
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues.length) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var cues = this.subtitlesTrack_.cues;
+ var start = cues[0].startTime;
+ var end = cues[cues.length - 1].startTime;
+
+ return videojs$1.createTimeRanges([[start, end]]);
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ // append WebVTT line terminators to the media initialization segment if it exists
+ // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
+ // requires two or more WebVTT line terminators between the WebVTT header and the
+ // rest of the file
+ var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
+ var combinedSegment = new Uint8Array(combinedByteLength);
+
+ combinedSegment.set(map.bytes);
+ combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
+
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: combinedSegment
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && this.subtitlesTrack_ && !this.paused();
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * Set a subtitle track on the segment loader to add subtitles to
+ *
+ * @param {TextTrack=} track
+ * The text track to add loaded subtitles to
+ * @return {TextTrack}
+ * Returns the subtitles track
+ */
+
+ }, {
+ key: 'track',
+ value: function track(_track) {
+ if (typeof _track === 'undefined') {
+ return this.subtitlesTrack_;
+ }
+
+ this.subtitlesTrack_ = _track;
+
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+
+ return this.subtitlesTrack_;
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ removeCuesFromTrack(start, end, this.subtitlesTrack_);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ var _this2 = this;
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ segmentInfo = this.skipEmptySegments_(segmentInfo);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
+ // We don't have the timestamp offset that we need to sync subtitles.
+ // Rerun on a timestamp offset or user interaction.
+ var checkTimestampOffset = function checkTimestampOffset() {
+ _this2.state = 'READY';
+ if (!_this2.paused()) {
+ // if not paused, queue a buffer check as soon as possible
+ _this2.monitorBuffer_();
+ }
+ };
+
+ this.syncController_.one('timestampoffset', checkTimestampOffset);
+ this.state = 'WAITING_ON_TIMELINE';
+ return;
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Prevents the segment loader from requesting segments we know contain no subtitles
+ * by walking forward until we find the next segment that we don't know whether it is
+ * empty or not.
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @return {Object}
+ * a segment info object that describes the current segment
+ */
+
+ }, {
+ key: 'skipEmptySegments_',
+ value: function skipEmptySegments_(segmentInfo) {
+ while (segmentInfo && segmentInfo.segment.empty) {
+ segmentInfo = this.generateSegmentInfo_(segmentInfo.playlist, segmentInfo.mediaIndex + 1, segmentInfo.startOfSegment + segmentInfo.duration, segmentInfo.isSyncRequest);
+ }
+ return segmentInfo;
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_ || !this.subtitlesTrack_) {
+ this.state = 'READY';
+ return;
+ }
+
+ this.state = 'APPENDING';
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ if (typeof window$1.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {
+
+ var loadHandler = function loadHandler() {
+ _this3.handleSegment_();
+ };
+
+ this.state = 'WAITING_ON_VTTJS';
+ this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);
+ this.subtitlesTrack_.tech_.one('vttjserror', function () {
+ _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);
+ _this3.error({
+ message: 'Error loading vtt.js'
+ });
+ _this3.state = 'READY';
+ _this3.pause();
+ _this3.trigger('error');
+ });
+
+ return;
+ }
+
+ segment.requested = true;
+
+ try {
+ this.parseVTTCues_(segmentInfo);
+ } catch (e) {
+ this.error({
+ message: e.message
+ });
+ this.state = 'READY';
+ this.pause();
+ return this.trigger('error');
+ }
+
+ this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+
+ this.mediaSecondsLoaded += segment.duration;
+
+ if (segmentInfo.cues.length) {
+ // remove any overlapping cues to prevent doubling
+ this.remove(segmentInfo.cues[0].endTime, segmentInfo.cues[segmentInfo.cues.length - 1].endTime);
+ }
+
+ segmentInfo.cues.forEach(function (cue) {
+ _this3.subtitlesTrack_.addCue(cue);
+ });
+
+ this.handleUpdateEnd_();
+ }
+
+ /**
+ * Uses the WebVTT parser to parse the segment response
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @private
+ */
+
+ }, {
+ key: 'parseVTTCues_',
+ value: function parseVTTCues_(segmentInfo) {
+ var decoder = void 0;
+ var decodeBytesToString = false;
+
+ if (typeof window$1.TextDecoder === 'function') {
+ decoder = new window$1.TextDecoder('utf8');
+ } else {
+ decoder = window$1.WebVTT.StringDecoder();
+ decodeBytesToString = true;
+ }
+
+ var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, decoder);
+
+ segmentInfo.cues = [];
+ segmentInfo.timestampmap = { MPEGTS: 0, LOCAL: 0 };
+
+ parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
+ parser.ontimestampmap = function (map) {
+ return segmentInfo.timestampmap = map;
+ };
+ parser.onparsingerror = function (error) {
+ videojs$1.log.warn('Error encountered when parsing cues: ' + error.message);
+ };
+
+ if (segmentInfo.segment.map) {
+ var mapData = segmentInfo.segment.map.bytes;
+
+ if (decodeBytesToString) {
+ mapData = uint8ToUtf8(mapData);
+ }
+
+ parser.parse(mapData);
+ }
+
+ var segmentData = segmentInfo.bytes;
+
+ if (decodeBytesToString) {
+ segmentData = uint8ToUtf8(segmentData);
+ }
+
+ parser.parse(segmentData);
+ parser.flush();
+ }
+
+ /**
+ * Updates the start and end times of any cues parsed by the WebVTT parser using
+ * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
+ * from the SyncController
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @param {Object} mappingObj
+ * object containing a mapping from TS to media time
+ * @param {Object} playlist
+ * the playlist object containing the segment
+ * @private
+ */
+
+ }, {
+ key: 'updateTimeMapping_',
+ value: function updateTimeMapping_(segmentInfo, mappingObj, playlist) {
+ var segment = segmentInfo.segment;
+
+ if (!mappingObj) {
+ // If the sync controller does not have a mapping of TS to Media Time for the
+ // timeline, then we don't have enough information to update the cue
+ // start/end times
+ return;
+ }
+
+ if (!segmentInfo.cues.length) {
+ // If there are no cues, we also do not have enough information to figure out
+ // segment timing. Mark that the segment contains no cues so we don't re-request
+ // an empty segment.
+ segment.empty = true;
+ return;
+ }
+
+ var timestampmap = segmentInfo.timestampmap;
+ var diff = timestampmap.MPEGTS / 90000 - timestampmap.LOCAL + mappingObj.mapping;
+
+ segmentInfo.cues.forEach(function (cue) {
+ // First convert cue time to TS time using the timestamp-map provided within the vtt
+ cue.startTime += diff;
+ cue.endTime += diff;
+ });
+
+ if (!playlist.syncInfo) {
+ var firstStart = segmentInfo.cues[0].startTime;
+ var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
+
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: Math.min(firstStart, lastStart - segment.duration)
+ };
+ }
+ }
+ }]);
+ return VTTSegmentLoader;
+}(SegmentLoader);
+
+/**
+ * @file ad-cue-tags.js
+ */
+
+/**
+ * Searches for an ad cue that overlaps with the given mediaTime
+ */
+var findAdCue = function findAdCue(track, mediaTime) {
+ var cues = track.cues;
+
+ for (var i = 0; i < cues.length; i++) {
+ var cue = cues[i];
+
+ if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
+ return cue;
+ }
+ }
+ return null;
+};
+
+var updateAdCues = function updateAdCues(media, track) {
+ var offset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ if (!media.segments) {
+ return;
+ }
+
+ var mediaTime = offset;
+ var cue = void 0;
+
+ for (var i = 0; i < media.segments.length; i++) {
+ var segment = media.segments[i];
+
+ if (!cue) {
+ // Since the cues will span for at least the segment duration, adding a fudge
+ // factor of half segment duration will prevent duplicate cues from being
+ // created when timing info is not exact (e.g. cue start time initialized
+ // at 10.006677, but next call mediaTime is 10.003332 )
+ cue = findAdCue(track, mediaTime + segment.duration / 2);
+ }
+
+ if (cue) {
+ if ('cueIn' in segment) {
+ // Found a CUE-IN so end the cue
+ cue.endTime = mediaTime;
+ cue.adEndTime = mediaTime;
+ mediaTime += segment.duration;
+ cue = null;
+ continue;
+ }
+
+ if (mediaTime < cue.endTime) {
+ // Already processed this mediaTime for this cue
+ mediaTime += segment.duration;
+ continue;
+ }
+
+ // otherwise extend cue until a CUE-IN is found
+ cue.endTime += segment.duration;
+ } else {
+ if ('cueOut' in segment) {
+ cue = new window$1.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
+ cue.adStartTime = mediaTime;
+ // Assumes tag format to be
+ // #EXT-X-CUE-OUT:30
+ cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
+ track.addCue(cue);
+ }
+
+ if ('cueOutCont' in segment) {
+ // Entered into the middle of an ad cue
+ var adOffset = void 0;
+ var adTotal = void 0;
+
+ // Assumes tag formate to be
+ // #EXT-X-CUE-OUT-CONT:10/30
+
+ var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat);
+
+ var _segment$cueOutCont$s2 = slicedToArray$1(_segment$cueOutCont$s, 2);
+
+ adOffset = _segment$cueOutCont$s2[0];
+ adTotal = _segment$cueOutCont$s2[1];
+
+ cue = new window$1.VTTCue(mediaTime, mediaTime + segment.duration, '');
+ cue.adStartTime = mediaTime - adOffset;
+ cue.adEndTime = cue.adStartTime + adTotal;
+ track.addCue(cue);
+ }
+ }
+ mediaTime += segment.duration;
+ }
+};
+
+/**
+ * @file sync-controller.js
+ */
+
+var tsprobe = tsInspector.inspect;
+
+var syncPointStrategies = [
+// Stategy "VOD": Handle the VOD-case where the sync-point is *always*
+// the equivalence display-time 0 === segment-index 0
+{
+ name: 'VOD',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (duration$$1 !== Infinity) {
+ var syncPoint = {
+ time: 0,
+ segmentIndex: 0
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+},
+// Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
+{
+ name: 'ProgramDateTime',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (!syncController.datetimeToDisplayTime) {
+ return null;
+ }
+
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.dateTimeObject) {
+ var segmentTime = segment.dateTimeObject.getTime() / 1000;
+ var segmentStart = segmentTime + syncController.datetimeToDisplayTime;
+ var distance = Math.abs(currentTime - segmentStart);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ lastDistance = distance;
+ syncPoint = {
+ time: segmentStart,
+ segmentIndex: i
+ };
+ }
+ }
+ return syncPoint;
+ }
+},
+// Stategy "Segment": We have a known time mapping for a timeline and a
+// segment in the current timeline with timing data
+{
+ name: 'Segment',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.timeline === currentTimeline && typeof segment.start !== 'undefined') {
+ var distance = Math.abs(currentTime - segment.start);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: segment.start,
+ segmentIndex: i
+ };
+ }
+ }
+ }
+ return syncPoint;
+ }
+},
+// Stategy "Discontinuity": We have a discontinuity with a known
+// display-time
+{
+ name: 'Discontinuity',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoint = null;
+
+ currentTime = currentTime || 0;
+
+ if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ var lastDistance = null;
+
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var discontinuitySync = syncController.discontinuities[discontinuity];
+
+ if (discontinuitySync) {
+ var distance = Math.abs(currentTime - discontinuitySync.time);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: discontinuitySync.time,
+ segmentIndex: segmentIndex
+ };
+ }
+ }
+ }
+ }
+ return syncPoint;
+ }
+},
+// Stategy "Playlist": We have a playlist with a known mapping of
+// segment index to display time
+{
+ name: 'Playlist',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (playlist.syncInfo) {
+ var syncPoint = {
+ time: playlist.syncInfo.time,
+ segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+}];
+
+var SyncController = function (_videojs$EventTarget) {
+ inherits$1(SyncController, _videojs$EventTarget);
+
+ function SyncController() {
+ classCallCheck$1(this, SyncController);
+
+ // Segment Loader state variables...
+ // ...for synching across variants
+ var _this = possibleConstructorReturn$1(this, (SyncController.__proto__ || Object.getPrototypeOf(SyncController)).call(this));
+
+ _this.inspectCache_ = undefined;
+
+ // ...for synching across variants
+ _this.timelines = [];
+ _this.discontinuities = [];
+ _this.datetimeToDisplayTime = null;
+
+ _this.logger_ = logger('SyncController');
+ return _this;
+ }
+
+ /**
+ * Find a sync-point for the playlist specified
+ *
+ * A sync-point is defined as a known mapping from display-time to
+ * a segment-index in the current playlist.
+ *
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinite if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Object}
+ * A sync-point object
+ */
+
+ createClass$1(SyncController, [{
+ key: 'getSyncPoint',
+ value: function getSyncPoint(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = this.runStrategies_(playlist, duration$$1, currentTimeline, currentTime);
+
+ if (!syncPoints.length) {
+ // Signal that we need to attempt to get a sync-point manually
+ // by fetching a segment in the playlist and constructing
+ // a sync-point from that information
+ return null;
+ }
+
+ // Now find the sync-point that is closest to the currentTime because
+ // that should result in the most accurate guess about which segment
+ // to fetch
+ return this.selectSyncPoint_(syncPoints, { key: 'time', value: currentTime });
+ }
+
+ /**
+ * Calculate the amount of time that has expired off the playlist during playback
+ *
+ * @param {Playlist} playlist
+ * Playlist object to calculate expired from
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playling a live source)
+ * @returns {Number|null}
+ * The amount of time that has expired off the playlist during playback. Null
+ * if no sync-points for the playlist can be found.
+ */
+
+ }, {
+ key: 'getExpiredTime',
+ value: function getExpiredTime(playlist, duration$$1) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+
+ var syncPoints = this.runStrategies_(playlist, duration$$1, playlist.discontinuitySequence, 0);
+
+ // Without sync-points, there is not enough information to determine the expired time
+ if (!syncPoints.length) {
+ return null;
+ }
+
+ var syncPoint = this.selectSyncPoint_(syncPoints, {
+ key: 'segmentIndex',
+ value: 0
+ });
+
+ // If the sync-point is beyond the start of the playlist, we want to subtract the
+ // duration from index 0 to syncPoint.segmentIndex instead of adding.
+ if (syncPoint.segmentIndex > 0) {
+ syncPoint.time *= -1;
+ }
+
+ return Math.abs(syncPoint.time + sumDurations(playlist, syncPoint.segmentIndex, 0));
+ }
+
+ /**
+ * Runs each sync-point strategy and returns a list of sync-points returned by the
+ * strategies
+ *
+ * @private
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Array}
+ * A list of sync-point objects
+ */
+
+ }, {
+ key: 'runStrategies_',
+ value: function runStrategies_(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = [];
+
+ // Try to find a sync-point in by utilizing various strategies...
+ for (var i = 0; i < syncPointStrategies.length; i++) {
+ var strategy = syncPointStrategies[i];
+ var syncPoint = strategy.run(this, playlist, duration$$1, currentTimeline, currentTime);
+
+ if (syncPoint) {
+ syncPoint.strategy = strategy.name;
+ syncPoints.push({
+ strategy: strategy.name,
+ syncPoint: syncPoint
+ });
+ }
+ }
+
+ return syncPoints;
+ }
+
+ /**
+ * Selects the sync-point nearest the specified target
+ *
+ * @private
+ * @param {Array} syncPoints
+ * List of sync-points to select from
+ * @param {Object} target
+ * Object specifying the property and value we are targeting
+ * @param {String} target.key
+ * Specifies the property to target. Must be either 'time' or 'segmentIndex'
+ * @param {Number} target.value
+ * The value to target for the specified key.
+ * @returns {Object}
+ * The sync-point nearest the target
+ */
+
+ }, {
+ key: 'selectSyncPoint_',
+ value: function selectSyncPoint_(syncPoints, target) {
+ var bestSyncPoint = syncPoints[0].syncPoint;
+ var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
+ var bestStrategy = syncPoints[0].strategy;
+
+ for (var i = 1; i < syncPoints.length; i++) {
+ var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
+
+ if (newDistance < bestDistance) {
+ bestDistance = newDistance;
+ bestSyncPoint = syncPoints[i].syncPoint;
+ bestStrategy = syncPoints[i].strategy;
+ }
+ }
+
+ this.logger_('syncPoint for [' + target.key + ': ' + target.value + '] chosen with strategy' + (' [' + bestStrategy + ']: [time:' + bestSyncPoint.time + ',') + (' segmentIndex:' + bestSyncPoint.segmentIndex + ']'));
+
+ return bestSyncPoint;
+ }
+
+ /**
+ * Save any meta-data present on the segments when segments leave
+ * the live window to the playlist to allow for synchronization at the
+ * playlist level later.
+ *
+ * @param {Playlist} oldPlaylist - The previous active playlist
+ * @param {Playlist} newPlaylist - The updated and most current playlist
+ */
+
+ }, {
+ key: 'saveExpiredSegmentInfo',
+ value: function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ // When a segment expires from the playlist and it has a start time
+ // save that information as a possible sync-point reference in future
+ for (var i = mediaSequenceDiff - 1; i >= 0; i--) {
+ var lastRemovedSegment = oldPlaylist.segments[i];
+
+ if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
+ newPlaylist.syncInfo = {
+ mediaSequence: oldPlaylist.mediaSequence + i,
+ time: lastRemovedSegment.start
+ };
+ this.logger_('playlist refresh sync: [time:' + newPlaylist.syncInfo.time + ',' + (' mediaSequence: ' + newPlaylist.syncInfo.mediaSequence + ']'));
+ this.trigger('syncinfoupdate');
+ break;
+ }
+ }
+ }
+
+ /**
+ * Save the mapping from playlist's ProgramDateTime to display. This should
+ * only ever happen once at the start of playback.
+ *
+ * @param {Playlist} playlist - The currently active playlist
+ */
+
+ }, {
+ key: 'setDateTimeMapping',
+ value: function setDateTimeMapping(playlist) {
+ if (!this.datetimeToDisplayTime && playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
+ var playlistTimestamp = playlist.segments[0].dateTimeObject.getTime() / 1000;
+
+ this.datetimeToDisplayTime = -playlistTimestamp;
+ }
+ }
+
+ /**
+ * Reset the state of the inspection cache when we do a rendition
+ * switch
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.inspectCache_ = undefined;
+ }
+
+ /**
+ * Probe or inspect a fmp4 or an mpeg2-ts segment to determine the start
+ * and end of the segment in it's internal "media time". Used to generate
+ * mappings from that internal "media time" to the display time that is
+ * shown on the player.
+ *
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'probeSegmentInfo',
+ value: function probeSegmentInfo(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var playlist = segmentInfo.playlist;
+ var timingInfo = void 0;
+
+ if (segment.map) {
+ timingInfo = this.probeMp4Segment_(segmentInfo);
+ } else {
+ timingInfo = this.probeTsSegment_(segmentInfo);
+ }
+
+ if (timingInfo) {
+ if (this.calculateSegmentTimeMapping_(segmentInfo, timingInfo)) {
+ this.saveDiscontinuitySyncInfo_(segmentInfo);
+
+ // If the playlist does not have sync information yet, record that information
+ // now with segment timing information
+ if (!playlist.syncInfo) {
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: segment.start
+ };
+ }
+ }
+ }
+
+ return timingInfo;
+ }
+
+ /**
+ * Probe an fmp4 or an mpeg2-ts segment to determine the start of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeMp4Segment_',
+ value: function probeMp4Segment_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var timescales = mp4probe.timescale(segment.map.bytes);
+ var startTime = mp4probe.startTime(timescales, segmentInfo.bytes);
+
+ if (segmentInfo.timestampOffset !== null) {
+ segmentInfo.timestampOffset -= startTime;
+ }
+
+ return {
+ start: startTime,
+ end: startTime + segment.duration
+ };
+ }
+
+ /**
+ * Probe an mpeg2-ts segment to determine the start and end of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeTsSegment_',
+ value: function probeTsSegment_(segmentInfo) {
+ var timeInfo = tsprobe(segmentInfo.bytes, this.inspectCache_);
+ var segmentStartTime = void 0;
+ var segmentEndTime = void 0;
+
+ if (!timeInfo) {
+ return null;
+ }
+
+ if (timeInfo.video && timeInfo.video.length === 2) {
+ this.inspectCache_ = timeInfo.video[1].dts;
+ segmentStartTime = timeInfo.video[0].dtsTime;
+ segmentEndTime = timeInfo.video[1].dtsTime;
+ } else if (timeInfo.audio && timeInfo.audio.length === 2) {
+ this.inspectCache_ = timeInfo.audio[1].dts;
+ segmentStartTime = timeInfo.audio[0].dtsTime;
+ segmentEndTime = timeInfo.audio[1].dtsTime;
+ }
+
+ return {
+ start: segmentStartTime,
+ end: segmentEndTime,
+ containsVideo: timeInfo.video && timeInfo.video.length === 2,
+ containsAudio: timeInfo.audio && timeInfo.audio.length === 2
+ };
+ }
+ }, {
+ key: 'timestampOffsetForTimeline',
+ value: function timestampOffsetForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].time;
+ }
+ }, {
+ key: 'mappingForTimeline',
+ value: function mappingForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].mapping;
+ }
+
+ /**
+ * Use the "media time" for a segment to generate a mapping to "display time" and
+ * save that display time to the segment.
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo
+ * The current active request information
+ * @param {object} timingInfo
+ * The start and end time of the current segment in "media time"
+ * @returns {Boolean}
+ * Returns false if segment time mapping could not be calculated
+ */
+
+ }, {
+ key: 'calculateSegmentTimeMapping_',
+ value: function calculateSegmentTimeMapping_(segmentInfo, timingInfo) {
+ var segment = segmentInfo.segment;
+ var mappingObj = this.timelines[segmentInfo.timeline];
+
+ if (segmentInfo.timestampOffset !== null) {
+ mappingObj = {
+ time: segmentInfo.startOfSegment,
+ mapping: segmentInfo.startOfSegment - timingInfo.start
+ };
+ this.timelines[segmentInfo.timeline] = mappingObj;
+ this.trigger('timestampoffset');
+
+ this.logger_('time mapping for timeline ' + segmentInfo.timeline + ': ' + ('[time: ' + mappingObj.time + '] [mapping: ' + mappingObj.mapping + ']'));
+
+ segment.start = segmentInfo.startOfSegment;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else if (mappingObj) {
+ segment.start = timingInfo.start + mappingObj.mapping;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Each time we have discontinuity in the playlist, attempt to calculate the location
+ * in display of the start of the discontinuity and save that. We also save an accuracy
+ * value so that we save values with the most accuracy (closest to 0.)
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'saveDiscontinuitySyncInfo_',
+ value: function saveDiscontinuitySyncInfo_(segmentInfo) {
+ var playlist = segmentInfo.playlist;
+ var segment = segmentInfo.segment;
+
+ // If the current segment is a discontinuity then we know exactly where
+ // the start of the range and it's accuracy is 0 (greater accuracy values
+ // mean more approximation)
+ if (segment.discontinuity) {
+ this.discontinuities[segment.timeline] = {
+ time: segment.start,
+ accuracy: 0
+ };
+ } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ // Search for future discontinuities that we can provide better timing
+ // information for and save that information for sync purposes
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
+ var accuracy = Math.abs(mediaIndexDiff);
+
+ if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
+ var time = void 0;
+
+ if (mediaIndexDiff < 0) {
+ time = segment.start - sumDurations(playlist, segmentInfo.mediaIndex, segmentIndex);
+ } else {
+ time = segment.end + sumDurations(playlist, segmentInfo.mediaIndex + 1, segmentIndex);
+ }
+
+ this.discontinuities[discontinuity] = {
+ time: time,
+ accuracy: accuracy
+ };
+ }
+ }
+ }
+ }
+ }]);
+ return SyncController;
+}(videojs$1.EventTarget);
+
+var Decrypter$1 = new shimWorker("./decrypter-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var decrypterWorker = function () {
+
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits$$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0;
+
+ // Compute double and third tables
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x;
+
+ // Compute MixColumns
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ }
+
+ // Compactify. Considerable speedup on Firefox.
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+ return tables;
+ };
+ var aesTables = null;
+
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck$$1(this, AES);
+
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+ if (!aesTables) {
+ aesTables = precompute();
+ }
+ // then make a copy of that object for use
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey];
+
+ // schedule encryption keys
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1];
+
+ // apply sbox
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
+
+ // shift rows and add rcon
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ }
+
+ // schedule decryption keys
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+ AES.prototype.decrypt = function decrypt$$1(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1];
+ // state variables a,b,c,d are loaded with pre-whitened data
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0;
+
+ // key.length === 2 ?
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1];
+
+ // load up the tables
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4];
+
+ // Inner rounds. Cribbed from OpenSSL.
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;b = b2;c = c2;
+ }
+
+ // Last round.
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;a = b;b = c;c = d;d = a2;
+ }
+ };
+
+ return AES;
+ }();
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream = function () {
+ function Stream() {
+ classCallCheck$$1(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ }
+
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file async-stream.js
+ */
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+ var AsyncStream$$1 = function (_Stream) {
+ inherits$$1(AsyncStream$$1, _Stream);
+
+ function AsyncStream$$1() {
+ classCallCheck$$1(this, AsyncStream$$1);
+
+ var _this = possibleConstructorReturn$$1(this, _Stream.call(this, Stream));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+ AsyncStream$$1.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+ AsyncStream$$1.prototype.push = function push(job) {
+ this.jobs.push(job);
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream$$1;
+ }(Stream);
+
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+ var decrypt$$1 = function decrypt$$1(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+
+ var decipher = new AES(Array.prototype.slice.call(key));
+
+ // byte and word-level access for the decrypted output
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer);
+
+ // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0;
+
+ // iteration variable
+ var wordIx = void 0;
+
+ // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3];
+
+ // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]);
+
+ // decrypt the block
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx);
+
+ // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3);
+
+ // setup the IV for the next round
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+ var Decrypter$$1 = function () {
+ function Decrypter$$1(encrypted, key, initVector, done) {
+ classCallCheck$$1(this, Decrypter$$1);
+
+ var step = Decrypter$$1.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+
+ this.asyncStream_ = new AsyncStream$$1();
+
+ // split up the encryption job and do the individual chunks asynchronously
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ }
+ // invoke the done() callback when everything is finished
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+ Decrypter$$1.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt$$1(encrypted, key, initVector);
+
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass$$1(Decrypter$$1, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter$$1;
+ }();
+
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+ };
+
+ /**
+ * Our web worker interface so that things can talk to aes-decrypter
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self
+ * the scope for the web worker
+ */
+ var DecrypterWorker = function DecrypterWorker(self) {
+ self.onmessage = function (event) {
+ var data = event.data;
+ var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
+ var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
+ var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
+
+ /* eslint-disable no-new, handle-callback-err */
+ new Decrypter$$1(encrypted, key, iv, function (err, bytes) {
+ self.postMessage(createTransferableMessage({
+ source: data.source,
+ decrypted: bytes
+ }), [bytes.buffer]);
+ });
+ /* eslint-enable */
+ };
+ };
+
+ var decrypterWorker = new DecrypterWorker(self);
+
+ return decrypterWorker;
+ }();
+});
+
+/**
+ * Convert the properties of an HLS track into an audioTrackKind.
+ *
+ * @private
+ */
+var audioTrackKind_ = function audioTrackKind_(properties) {
+ var kind = properties.default ? 'main' : 'alternative';
+
+ if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
+ kind = 'main-desc';
+ }
+
+ return kind;
+};
+
+/**
+ * Pause provided segment loader and playlist loader if active
+ *
+ * @param {SegmentLoader} segmentLoader
+ * SegmentLoader to pause
+ * @param {Object} mediaType
+ * Active media type
+ * @function stopLoaders
+ */
+var stopLoaders = function stopLoaders(segmentLoader, mediaType) {
+ segmentLoader.abort();
+ segmentLoader.pause();
+
+ if (mediaType && mediaType.activePlaylistLoader) {
+ mediaType.activePlaylistLoader.pause();
+ mediaType.activePlaylistLoader = null;
+ }
+};
+
+/**
+ * Start loading provided segment loader and playlist loader
+ *
+ * @param {PlaylistLoader} playlistLoader
+ * PlaylistLoader to start loading
+ * @param {Object} mediaType
+ * Active media type
+ * @function startLoaders
+ */
+var startLoaders = function startLoaders(playlistLoader, mediaType) {
+ // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
+ // playlist loader
+ mediaType.activePlaylistLoader = playlistLoader;
+ playlistLoader.load();
+};
+
+/**
+ * Returns a function to be called when the media group changes. It performs a
+ * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
+ * change of group is merely a rendition switch of the same content at another encoding,
+ * rather than a change of content, such as switching audio from English to Spanish.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a non-destructive resync of SegmentLoader when the active media
+ * group changes.
+ * @function onGroupChanged
+ */
+var onGroupChanged = function onGroupChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad[type],
+ mainSegmentLoader = _settings$segmentLoad.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ if (previousActiveLoader) {
+ // The previous group had a playlist loader but the new active group does not
+ // this means we are switching from demuxed to muxed audio. In this case we want to
+ // do a destructive reset of the main segment loader and not restart the audio
+ // loaders.
+ mainSegmentLoader.resetEverything();
+ }
+ return;
+ }
+
+ // Non-destructive resync
+ segmentLoader.resyncLoader();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+};
+
+/**
+ * Returns a function to be called when the media track changes. It performs a
+ * destructive reset of the SegmentLoader to ensure we start loading as close to
+ * currentTime as possible.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a destructive reset of SegmentLoader when the active media
+ * track changes.
+ * @function onTrackChanged
+ */
+var onTrackChanged = function onTrackChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad2 = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad2[type],
+ mainSegmentLoader = _settings$segmentLoad2.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active so we do not want to restart loaders
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ // when switching from demuxed audio/video to muxed audio/video (noted by no playlist
+ // loader for the audio group), we want to do a destructive reset of the main segment
+ // loader and not restart the audio loaders
+ mainSegmentLoader.resetEverything();
+ return;
+ }
+
+ if (previousActiveLoader === activeGroup.playlistLoader) {
+ // Nothing has actually changed. This can happen because track change events can fire
+ // multiple times for a "single" change. One for enabling the new active track, and
+ // one for disabling the track that was active
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ return;
+ }
+
+ if (segmentLoader.track) {
+ // For WebVTT, set the new text track in the segmentloader
+ segmentLoader.track(activeTrack);
+ }
+
+ // destructive reset
+ segmentLoader.resetEverything();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+};
+
+var onError = {
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning (or error if the playlist is blacklisted) to
+ * console and switches back to default audio track.
+ * @function onError.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type],
+ blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ // switch back to default audio track
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup();
+ var id = (activeGroup.filter(function (group) {
+ return group.default;
+ })[0] || activeGroup[0]).id;
+ var defaultTrack = mediaType.tracks[id];
+
+ if (activeTrack === defaultTrack) {
+ // Default track encountered an error. All we can do now is blacklist the current
+ // rendition and hope another will switch audio groups
+ blacklistCurrentPlaylist({
+ message: 'Problem encountered loading the default audio track.'
+ });
+ return;
+ }
+
+ videojs$1.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
+
+ for (var trackId in mediaType.tracks) {
+ mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
+ }
+
+ mediaType.onTrackChanged();
+ };
+ },
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning to console and disables the active subtitle track
+ * @function onError.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ videojs$1.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
+
+ stopLoaders(segmentLoader, mediaType);
+
+ var track = mediaType.activeTrack();
+
+ if (track) {
+ track.mode = 'disabled';
+ }
+
+ mediaType.onTrackChanged();
+ };
+ }
+};
+
+var setupListeners = {
+ /**
+ * Setup event listeners for audio playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.AUDIO
+ */
+ AUDIO: function AUDIO(type, playlistLoader, settings) {
+ if (!playlistLoader) {
+ // no playlist loader means audio will be muxed with the video
+ return;
+ }
+
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup event listeners for subtitle playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+ segmentLoader.track(mediaType.activeTrack());
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ }
+};
+
+var byGroupId = function byGroupId(type, groupId) {
+ return function (playlist) {
+ return playlist.attributes[type] === groupId;
+ };
+};
+
+var byResolvedUri = function byResolvedUri(resolvedUri) {
+ return function (playlist) {
+ return playlist.resolvedUri === resolvedUri;
+ };
+};
+
+var initialize = {
+ /**
+ * Setup PlaylistLoaders and AudioTracks for the audio groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.AUDIO
+ */
+ 'AUDIO': function AUDIO(type, settings) {
+ var hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ _settings$master = settings.master,
+ mediaGroups = _settings$master.mediaGroups,
+ playlists = _settings$master.playlists,
+ _settings$mediaTypes$ = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$.groups,
+ tracks = _settings$mediaTypes$.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ // force a default if we have none
+
+ if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
+ mediaGroups[type] = { main: { default: { default: true } } };
+ }
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ // List of playlists that have an AUDIO attribute value matching the current
+ // group ID
+ var groupPlaylists = playlists.filter(byGroupId(type, groupId));
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // List of playlists for the current group ID that have a matching uri with
+ // this alternate audio variant
+ var matchingPlaylists = groupPlaylists.filter(byResolvedUri(properties.resolvedUri));
+
+ if (matchingPlaylists.length) {
+ // If there is a playlist that has the same uri as this audio variant, assume
+ // that the playlist is audio only. We delete the resolvedUri property here
+ // to prevent a playlist loader from being created so that we don't have
+ // both the main and audio segment loaders loading the same audio segments
+ // from the same playlist.
+ delete properties.resolvedUri;
+ }
+
+ var playlistLoader = void 0;
+
+ if (properties.resolvedUri) {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (properties.playlists && sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ } else {
+ // no resolvedUri means the audio is muxed with the video when using this
+ // audio track
+ playlistLoader = null;
+ }
+
+ properties = videojs$1.mergeOptions({ id: variantLabel, playlistLoader: playlistLoader }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = new videojs$1.AudioTrack({
+ id: variantLabel,
+ kind: audioTrackKind_(properties),
+ enabled: false,
+ language: properties.language,
+ default: properties.default,
+ label: variantLabel
+ });
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup PlaylistLoaders and TextTracks for the subtitle groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.SUBTITLES
+ */
+ 'SUBTITLES': function SUBTITLES(type, settings) {
+ var tech = settings.tech,
+ hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$2 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$2.groups,
+ tracks = _settings$mediaTypes$2.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ if (mediaGroups[type][groupId][variantLabel].forced) {
+ // Subtitle playlists with the forced attribute are not selectable in Safari.
+ // According to Apple's HLS Authoring Specification:
+ // If content has forced subtitles and regular subtitles in a given language,
+ // the regular subtitles track in that language MUST contain both the forced
+ // subtitles and the regular subtitles for that language.
+ // Because of this requirement and that Safari does not add forced subtitles,
+ // forced subtitles are skipped here to maintain consistent experience across
+ // all platforms
+ continue;
+ }
+
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ var playlistLoader = void 0;
+
+ if (sourceType === 'hls') {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ }
+
+ properties = videojs$1.mergeOptions({
+ id: variantLabel,
+ playlistLoader: playlistLoader
+ }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: variantLabel,
+ kind: 'subtitles',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup TextTracks for the closed-caption groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize['CLOSED-CAPTIONS']
+ */
+ 'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {
+ var tech = settings.tech,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$3 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$3.groups,
+ tracks = _settings$mediaTypes$3.tracks;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // We only support CEA608 captions for now, so ignore anything that
+ // doesn't use a CCx INSTREAM-ID
+ if (!properties.instreamId.match(/CC\d/)) {
+ continue;
+ }
+
+ // No PlaylistLoader is required for Closed-Captions because the captions are
+ // embedded within the video stream
+ groups[groupId].push(videojs$1.mergeOptions({ id: variantLabel }, properties));
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: properties.instreamId,
+ kind: 'captions',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+ }
+};
+
+/**
+ * Returns a function used to get the active group of the provided type
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media group for the provided type. Takes an
+ * optional parameter {TextTrack} track. If no track is provided, a list of all
+ * variants in the group, otherwise the variant corresponding to the provided
+ * track is returned.
+ * @function activeGroup
+ */
+var activeGroup = function activeGroup(type, settings) {
+ return function (track) {
+ var masterPlaylistLoader = settings.masterPlaylistLoader,
+ groups = settings.mediaTypes[type].groups;
+
+ var media = masterPlaylistLoader.media();
+
+ if (!media) {
+ return null;
+ }
+
+ var variants = null;
+
+ if (media.attributes[type]) {
+ variants = groups[media.attributes[type]];
+ }
+
+ variants = variants || groups.main;
+
+ if (typeof track === 'undefined') {
+ return variants;
+ }
+
+ if (track === null) {
+ // An active track was specified so a corresponding group is expected. track === null
+ // means no track is currently active so there is no corresponding group
+ return null;
+ }
+
+ return variants.filter(function (props) {
+ return props.id === track.id;
+ })[0] || null;
+ };
+};
+
+var activeTrack = {
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].enabled) {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ },
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].mode === 'showing') {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ }
+};
+
+/**
+ * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
+ * Closed-Captions) specified in the master manifest.
+ *
+ * @param {Object} settings
+ * Object containing required information for setting up the media groups
+ * @param {SegmentLoader} settings.segmentLoaders.AUDIO
+ * Audio segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.SUBTITLES
+ * Subtitle segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.main
+ * Main segment loader
+ * @param {Tech} settings.tech
+ * The tech of the player
+ * @param {Object} settings.requestOptions
+ * XHR request options used by the segment loaders
+ * @param {PlaylistLoader} settings.masterPlaylistLoader
+ * PlaylistLoader for the master source
+ * @param {HlsHandler} settings.hls
+ * HLS SourceHandler
+ * @param {Object} settings.master
+ * The parsed master manifest
+ * @param {Object} settings.mediaTypes
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @param {Function} settings.blacklistCurrentPlaylist
+ * Blacklists the current rendition and forces a rendition switch.
+ * @function setupMediaGroups
+ */
+var setupMediaGroups = function setupMediaGroups(settings) {
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ initialize[type](type, settings);
+ });
+
+ var mediaTypes = settings.mediaTypes,
+ masterPlaylistLoader = settings.masterPlaylistLoader,
+ tech = settings.tech,
+ hls = settings.hls;
+
+ // setup active group and track getters and change event handlers
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ mediaTypes[type].activeGroup = activeGroup(type, settings);
+ mediaTypes[type].activeTrack = activeTrack[type](type, settings);
+ mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
+ mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
+ });
+
+ // DO NOT enable the default subtitle or caption track.
+ // DO enable the default audio track
+ var audioGroup = mediaTypes.AUDIO.activeGroup();
+ var groupId = (audioGroup.filter(function (group) {
+ return group.default;
+ })[0] || audioGroup[0]).id;
+
+ mediaTypes.AUDIO.tracks[groupId].enabled = true;
+ mediaTypes.AUDIO.onTrackChanged();
+
+ masterPlaylistLoader.on('mediachange', function () {
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ return mediaTypes[type].onGroupChanged();
+ });
+ });
+
+ // custom audio track change event handler for usage event
+ var onAudioTrackChanged = function onAudioTrackChanged() {
+ mediaTypes.AUDIO.onTrackChanged();
+ tech.trigger({ type: 'usage', name: 'hls-audio-change' });
+ };
+
+ tech.audioTracks().addEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+
+ hls.on('dispose', function () {
+ tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+ });
+
+ // clear existing audio tracks and add the ones we just created
+ tech.clearTracks('audio');
+
+ for (var id in mediaTypes.AUDIO.tracks) {
+ tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
+ }
+};
+
+/**
+ * Creates skeleton object used to store the loaders, tracks, and utility methods for each
+ * media type
+ *
+ * @return {Object}
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @function createMediaTypes
+ */
+var createMediaTypes = function createMediaTypes() {
+ var mediaTypes = {};
+
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ mediaTypes[type] = {
+ groups: {},
+ tracks: {},
+ activePlaylistLoader: null,
+ activeGroup: noop,
+ activeTrack: noop,
+ onGroupChanged: noop,
+ onTrackChanged: noop
+ };
+ });
+
+ return mediaTypes;
+};
+
+/**
+ * @file master-playlist-controller.js
+ */
+
+var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;
+
+var Hls = void 0;
+
+// SegmentLoader stats that need to have each loader's
+// values summed to calculate the final value
+var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred'];
+var sumLoaderStat = function sumLoaderStat(stat) {
+ return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
+};
+
+/**
+ * the master playlist controller controller all interactons
+ * between playlists and segmentloaders. At this time this mainly
+ * involves a master playlist and a series of audio playlists
+ * if they are available
+ *
+ * @class MasterPlaylistController
+ * @extends videojs.EventTarget
+ */
+var MasterPlaylistController = function (_videojs$EventTarget) {
+ inherits$1(MasterPlaylistController, _videojs$EventTarget);
+
+ function MasterPlaylistController(options) {
+ classCallCheck$1(this, MasterPlaylistController);
+
+ var _this = possibleConstructorReturn$1(this, (MasterPlaylistController.__proto__ || Object.getPrototypeOf(MasterPlaylistController)).call(this));
+
+ var url = options.url,
+ withCredentials = options.withCredentials,
+ tech = options.tech,
+ bandwidth = options.bandwidth,
+ externHls = options.externHls,
+ useCueTags = options.useCueTags,
+ blacklistDuration = options.blacklistDuration,
+ enableLowInitialPlaylist = options.enableLowInitialPlaylist,
+ sourceType = options.sourceType,
+ seekTo = options.seekTo;
+
+ if (!url) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ Hls = externHls;
+
+ _this.withCredentials = withCredentials;
+ _this.tech_ = tech;
+ _this.hls_ = tech.hls;
+ _this.seekTo_ = seekTo;
+ _this.sourceType_ = sourceType;
+ _this.useCueTags_ = useCueTags;
+ _this.blacklistDuration = blacklistDuration;
+ _this.enableLowInitialPlaylist = enableLowInitialPlaylist;
+ if (_this.useCueTags_) {
+ _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');
+ _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
+ }
+
+ _this.requestOptions_ = {
+ withCredentials: _this.withCredentials,
+ timeout: null
+ };
+
+ _this.mediaTypes_ = createMediaTypes();
+
+ _this.mediaSource = new videojs$1.MediaSource();
+
+ // load the media source into the player
+ _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_.bind(_this));
+
+ _this.seekable_ = videojs$1.createTimeRanges();
+ _this.hasPlayed_ = function () {
+ return false;
+ };
+
+ _this.syncController_ = new SyncController(options);
+ _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'segment-metadata'
+ }, false).track;
+
+ _this.decrypter_ = new Decrypter$1();
+ _this.inbandTextTracks_ = {};
+
+ var segmentLoaderSettings = {
+ hls: _this.hls_,
+ mediaSource: _this.mediaSource,
+ currentTime: _this.tech_.currentTime.bind(_this.tech_),
+ seekable: function seekable$$1() {
+ return _this.seekable();
+ },
+ seeking: function seeking() {
+ return _this.tech_.seeking();
+ },
+ duration: function duration$$1() {
+ return _this.mediaSource.duration;
+ },
+ hasPlayed: function hasPlayed() {
+ return _this.hasPlayed_();
+ },
+ goalBufferLength: function goalBufferLength() {
+ return _this.goalBufferLength();
+ },
+ bandwidth: bandwidth,
+ syncController: _this.syncController_,
+ decrypter: _this.decrypter_,
+ sourceType: _this.sourceType_,
+ inbandTextTracks: _this.inbandTextTracks_
+ };
+
+ _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(url, _this.hls_, _this.withCredentials) : new PlaylistLoader(url, _this.hls_, _this.withCredentials);
+ _this.setupMasterPlaylistLoaderListeners_();
+
+ // setup segment loaders
+ // combined audio/video or just video when alternate audio track is selected
+ _this.mainSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ segmentMetadataTrack: _this.segmentMetadataTrack_,
+ loaderType: 'main'
+ }), options);
+
+ // alternate audio track
+ _this.audioSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'audio'
+ }), options);
+
+ _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'vtt'
+ }), options);
+
+ _this.setupSegmentLoaderListeners_();
+
+ // Create SegmentLoader stat-getters
+ loaderStats.forEach(function (stat) {
+ _this[stat + '_'] = sumLoaderStat.bind(_this, stat);
+ });
+
+ _this.logger_ = logger('MPC');
+
+ _this.masterPlaylistLoader_.load();
+ return _this;
+ }
+
+ /**
+ * Register event handlers on the master playlist loader. A helper
+ * function for construction time.
+ *
+ * @private
+ */
+
+ createClass$1(MasterPlaylistController, [{
+ key: 'setupMasterPlaylistLoaderListeners_',
+ value: function setupMasterPlaylistLoaderListeners_() {
+ var _this2 = this;
+
+ this.masterPlaylistLoader_.on('loadedmetadata', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // if this isn't a live video and preload permits, start
+ // downloading segments
+ if (media.endList && _this2.tech_.preload() !== 'none') {
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+ _this2.mainSegmentLoader_.load();
+ }
+
+ setupMediaGroups({
+ sourceType: _this2.sourceType_,
+ segmentLoaders: {
+ AUDIO: _this2.audioSegmentLoader_,
+ SUBTITLES: _this2.subtitleSegmentLoader_,
+ main: _this2.mainSegmentLoader_
+ },
+ tech: _this2.tech_,
+ requestOptions: _this2.requestOptions_,
+ masterPlaylistLoader: _this2.masterPlaylistLoader_,
+ hls: _this2.hls_,
+ master: _this2.master(),
+ mediaTypes: _this2.mediaTypes_,
+ blacklistCurrentPlaylist: _this2.blacklistCurrentPlaylist.bind(_this2)
+ });
+
+ _this2.triggerPresenceUsage_(_this2.master(), media);
+
+ try {
+ _this2.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create SourceBuffers', e);
+ return _this2.mediaSource.endOfStream('decode');
+ }
+ _this2.setupFirstPlay();
+
+ _this2.trigger('selectedinitialmedia');
+ });
+
+ this.masterPlaylistLoader_.on('loadedplaylist', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+
+ if (!updatedPlaylist) {
+ // blacklist any variants that are not supported by the browser before selecting
+ // an initial media as the playlist selectors do not consider browser support
+ _this2.excludeUnsupportedVariants_();
+
+ var selectedMedia = void 0;
+
+ if (_this2.enableLowInitialPlaylist) {
+ selectedMedia = _this2.selectInitialPlaylist();
+ }
+
+ if (!selectedMedia) {
+ selectedMedia = _this2.selectPlaylist();
+ }
+
+ _this2.initialMedia_ = selectedMedia;
+ _this2.masterPlaylistLoader_.media(_this2.initialMedia_);
+ return;
+ }
+
+ if (_this2.useCueTags_) {
+ _this2.updateAdCues_(updatedPlaylist);
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `mediachange`
+ _this2.mainSegmentLoader_.playlist(updatedPlaylist, _this2.requestOptions_);
+ _this2.updateDuration();
+
+ // If the player isn't paused, ensure that the segment loader is running,
+ // as it is possible that it was temporarily stopped while waiting for
+ // a playlist (e.g., in case the playlist errored and we re-requested it).
+ if (!_this2.tech_.paused()) {
+ _this2.mainSegmentLoader_.load();
+ if (_this2.audioSegmentLoader_) {
+ _this2.audioSegmentLoader_.load();
+ }
+ }
+
+ if (!updatedPlaylist.endList) {
+ var addSeekableRange = function addSeekableRange() {
+ var seekable$$1 = _this2.seekable();
+
+ if (seekable$$1.length !== 0) {
+ _this2.mediaSource.addSeekableRange_(seekable$$1.start(0), seekable$$1.end(0));
+ }
+ };
+
+ if (_this2.duration() !== Infinity) {
+ var onDurationchange = function onDurationchange() {
+ if (_this2.duration() === Infinity) {
+ addSeekableRange();
+ } else {
+ _this2.tech_.one('durationchange', onDurationchange);
+ }
+ };
+
+ _this2.tech_.one('durationchange', onDurationchange);
+ } else {
+ addSeekableRange();
+ }
+ }
+ });
+
+ this.masterPlaylistLoader_.on('error', function () {
+ _this2.blacklistCurrentPlaylist(_this2.masterPlaylistLoader_.error);
+ });
+
+ this.masterPlaylistLoader_.on('mediachanging', function () {
+ _this2.mainSegmentLoader_.abort();
+ _this2.mainSegmentLoader_.pause();
+ });
+
+ this.masterPlaylistLoader_.on('mediachange', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `loadedplaylist`
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+
+ _this2.mainSegmentLoader_.load();
+
+ _this2.tech_.trigger({
+ type: 'mediachange',
+ bubbles: true
+ });
+ });
+
+ this.masterPlaylistLoader_.on('playlistunchanged', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+ var playlistOutdated = _this2.stuckAtPlaylistEnd_(updatedPlaylist);
+
+ if (playlistOutdated) {
+ // Playlist has stopped updating and we're stuck at its end. Try to
+ // blacklist it and switch to another playlist in the hope that that
+ // one is updating (and give the player a chance to re-adjust to the
+ // safe live point).
+ _this2.blacklistCurrentPlaylist({
+ message: 'Playlist no longer updating.'
+ });
+ // useful for monitoring QoS
+ _this2.tech_.trigger('playliststuck');
+ }
+ });
+
+ this.masterPlaylistLoader_.on('renditiondisabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-disabled' });
+ });
+ this.masterPlaylistLoader_.on('renditionenabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-enabled' });
+ });
+ }
+
+ /**
+ * A helper function for triggerring presence usage events once per source
+ *
+ * @private
+ */
+
+ }, {
+ key: 'triggerPresenceUsage_',
+ value: function triggerPresenceUsage_(master, media) {
+ var mediaGroups = master.mediaGroups || {};
+ var defaultDemuxed = true;
+ var audioGroupKeys = Object.keys(mediaGroups.AUDIO);
+
+ for (var mediaGroup in mediaGroups.AUDIO) {
+ for (var label in mediaGroups.AUDIO[mediaGroup]) {
+ var properties = mediaGroups.AUDIO[mediaGroup][label];
+
+ if (!properties.uri) {
+ defaultDemuxed = false;
+ }
+ }
+ }
+
+ if (defaultDemuxed) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-demuxed' });
+ }
+
+ if (Object.keys(mediaGroups.SUBTITLES).length) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-webvtt' });
+ }
+
+ if (Hls.Playlist.isAes(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-aes' });
+ }
+
+ if (Hls.Playlist.isFmp4(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-fmp4' });
+ }
+
+ if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-alternate-audio' });
+ }
+
+ if (this.useCueTags_) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-playlist-cue-tags' });
+ }
+ }
+ /**
+ * Register event handlers on the segment loaders. A helper function
+ * for construction time.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSegmentLoaderListeners_',
+ value: function setupSegmentLoaderListeners_() {
+ var _this3 = this;
+
+ this.mainSegmentLoader_.on('bandwidthupdate', function () {
+ var nextPlaylist = _this3.selectPlaylist();
+ var currentPlaylist = _this3.masterPlaylistLoader_.media();
+ var buffered = _this3.tech_.buffered();
+ var forwardBuffer = buffered.length ? buffered.end(buffered.length - 1) - _this3.tech_.currentTime() : 0;
+
+ var bufferLowWaterLine = _this3.bufferLowWaterLine();
+
+ // If the playlist is live, then we want to not take low water line into account.
+ // This is because in LIVE, the player plays 3 segments from the end of the
+ // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
+ // in those segments, a viewer will never experience a rendition upswitch.
+ if (!currentPlaylist.endList ||
+ // For the same reason as LIVE, we ignore the low water line when the VOD
+ // duration is below the max potential low water line
+ _this3.duration() < Config.MAX_BUFFER_LOW_WATER_LINE ||
+ // we want to switch down to lower resolutions quickly to continue playback, but
+ nextPlaylist.attributes.BANDWIDTH < currentPlaylist.attributes.BANDWIDTH ||
+ // ensure we have some buffer before we switch up to prevent us running out of
+ // buffer while loading a higher rendition.
+ forwardBuffer >= bufferLowWaterLine) {
+ _this3.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ _this3.tech_.trigger('bandwidthupdate');
+ });
+ this.mainSegmentLoader_.on('progress', function () {
+ _this3.trigger('progress');
+ });
+
+ this.mainSegmentLoader_.on('error', function () {
+ _this3.blacklistCurrentPlaylist(_this3.mainSegmentLoader_.error());
+ });
+
+ this.mainSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('timestampoffset', function () {
+ _this3.tech_.trigger({ type: 'usage', name: 'hls-timestamp-offset' });
+ });
+ this.audioSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+
+ this.mainSegmentLoader_.on('earlyabort', function () {
+ _this3.blacklistCurrentPlaylist({
+ message: 'Aborted early because there isn\'t enough bandwidth to complete the ' + 'request without rebuffering.'
+ }, ABORT_EARLY_BLACKLIST_SECONDS);
+ });
+
+ this.mainSegmentLoader_.on('reseteverything', function () {
+ // If playing an MTS stream, a videojs.MediaSource is listening for
+ // hls-reset to reset caption parsing state in the transmuxer
+ _this3.tech_.trigger('hls-reset');
+ });
+
+ this.mainSegmentLoader_.on('segmenttimemapping', function (event) {
+ // If playing an MTS stream in html, a videojs.MediaSource is listening for
+ // hls-segment-time-mapping update its internal mapping of stream to display time
+ _this3.tech_.trigger({
+ type: 'hls-segment-time-mapping',
+ mapping: event.mapping
+ });
+ });
+
+ this.audioSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+ }
+ }, {
+ key: 'mediaSecondsLoaded_',
+ value: function mediaSecondsLoaded_() {
+ return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
+ }
+
+ /**
+ * Call load on our SegmentLoaders
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ this.mainSegmentLoader_.load();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.load();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.load();
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions without performing destructive actions, like
+ * removing already buffered content
+ *
+ * @private
+ */
+
+ }, {
+ key: 'smoothQualityChange_',
+ value: function smoothQualityChange_() {
+ var media = this.selectPlaylist();
+
+ if (media !== this.masterPlaylistLoader_.media()) {
+ this.masterPlaylistLoader_.media(media);
+
+ this.mainSegmentLoader_.resetLoader();
+ // don't need to reset audio as it is reset when media changes
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions. This method will perform destructive actions like removing
+ * already buffered content in order to readjust the currently active
+ * playlist quickly. This is good for manual quality changes
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fastQualityChange_',
+ value: function fastQualityChange_() {
+ var _this4 = this;
+
+ var media = this.selectPlaylist();
+
+ if (media === this.masterPlaylistLoader_.media()) {
+ return;
+ }
+
+ this.masterPlaylistLoader_.media(media);
+
+ // Delete all buffered data to allow an immediate quality switch, then seek to give
+ // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
+ // ahead is roughly the minimum that will accomplish this across a variety of content
+ // in IE and Edge, but seeking in place is sufficient on all other browsers)
+ // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
+ // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
+ this.mainSegmentLoader_.resetEverything(function () {
+ // Since this is not a typical seek, we avoid the seekTo method which can cause segments
+ // from the previously enabled rendition to load before the new playlist has finished loading
+ if (videojs$1.browser.IE_VERSION || videojs$1.browser.IS_EDGE) {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime() + 0.04);
+ } else {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime());
+ }
+ });
+
+ // don't need to reset audio as it is reset when media changes
+ }
+
+ /**
+ * Begin playback.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ if (this.setupFirstPlay()) {
+ return;
+ }
+
+ if (this.tech_.ended()) {
+ this.seekTo_(0);
+ }
+
+ if (this.hasPlayed_()) {
+ this.load();
+ }
+
+ var seekable$$1 = this.tech_.seekable();
+
+ // if the viewer has paused and we fell out of the live window,
+ // seek forward to the live point
+ if (this.tech_.duration() === Infinity) {
+ if (this.tech_.currentTime() < seekable$$1.start(0)) {
+ return this.seekTo_(seekable$$1.end(seekable$$1.length - 1));
+ }
+ }
+ }
+
+ /**
+ * Seek to the latest media position if this is a live video and the
+ * player and video are loaded and initialized.
+ */
+
+ }, {
+ key: 'setupFirstPlay',
+ value: function setupFirstPlay() {
+ var _this5 = this;
+
+ var media = this.masterPlaylistLoader_.media();
+
+ // Check that everything is ready to begin buffering for the first call to play
+ // If 1) there is no active media
+ // 2) the player is paused
+ // 3) the first play has already been setup
+ // then exit early
+ if (!media || this.tech_.paused() || this.hasPlayed_()) {
+ return false;
+ }
+
+ // when the video is a live stream
+ if (!media.endList) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // without a seekable range, the player cannot seek to begin buffering at the live
+ // point
+ return false;
+ }
+
+ if (videojs$1.browser.IE_VERSION && this.tech_.readyState() === 0) {
+ // IE11 throws an InvalidStateError if you try to set currentTime while the
+ // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
+ this.tech_.one('loadedmetadata', function () {
+ _this5.trigger('firstplay');
+ _this5.seekTo_(seekable$$1.end(0));
+ _this5.hasPlayed_ = function () {
+ return true;
+ };
+ });
+
+ return false;
+ }
+
+ // trigger firstplay to inform the source handler to ignore the next seek event
+ this.trigger('firstplay');
+ // seek to the live point
+ this.seekTo_(seekable$$1.end(0));
+ }
+
+ this.hasPlayed_ = function () {
+ return true;
+ };
+ // we can begin loading now that everything is ready
+ this.load();
+ return true;
+ }
+
+ /**
+ * handle the sourceopen event on the MediaSource
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSourceOpen_',
+ value: function handleSourceOpen_() {
+ // Only attempt to create the source buffer if none already exist.
+ // handleSourceOpen is also called when we are "re-opening" a source buffer
+ // after `endOfStream` has been called (in response to a seek for instance)
+ try {
+ this.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create Source Buffers', e);
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ // if autoplay is enabled, begin playback. This is duplicative of
+ // code in video.js but is required because play() must be invoked
+ // *after* the media source has opened.
+ if (this.tech_.autoplay()) {
+ var playPromise = this.tech_.play();
+
+ // Catch/silence error when a pause interrupts a play request
+ // on browsers which return a promise
+ if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
+ playPromise.then(null, function (e) {});
+ }
+ }
+
+ this.trigger('sourceopen');
+ }
+
+ /**
+ * Calls endOfStream on the media source when all active stream types have called
+ * endOfStream
+ *
+ * @param {string} streamType
+ * Stream type of the segment loader that called endOfStream
+ * @private
+ */
+
+ }, {
+ key: 'onEndOfStream',
+ value: function onEndOfStream() {
+ var isEndOfStream = this.mainSegmentLoader_.ended_;
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ // if the audio playlist loader exists, then alternate audio is active
+ if (!this.mainSegmentLoader_.startingMedia_ || this.mainSegmentLoader_.startingMedia_.containsVideo) {
+ // if we do not know if the main segment loader contains video yet or if we
+ // definitively know the main segment loader contains video, then we need to wait
+ // for both main and audio segment loaders to call endOfStream
+ isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
+ } else {
+ // otherwise just rely on the audio loader
+ isEndOfStream = this.audioSegmentLoader_.ended_;
+ }
+ }
+
+ if (isEndOfStream) {
+ this.mediaSource.endOfStream();
+ }
+ }
+
+ /**
+ * Check if a playlist has stopped being updated
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist has stopped being updated or not
+ */
+
+ }, {
+ key: 'stuckAtPlaylistEnd_',
+ value: function stuckAtPlaylistEnd_(playlist) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // playlist doesn't have enough information to determine whether we are stuck
+ return false;
+ }
+
+ var expired = this.syncController_.getExpiredTime(playlist, this.mediaSource.duration);
+
+ if (expired === null) {
+ return false;
+ }
+
+ // does not use the safe live end to calculate playlist end, since we
+ // don't want to say we are stuck while there is still content
+ var absolutePlaylistEnd = Hls.Playlist.playlistEnd(playlist, expired);
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (!buffered.length) {
+ // return true if the playhead reached the absolute end of the playlist
+ return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
+ }
+ var bufferedEnd = buffered.end(buffered.length - 1);
+
+ // return true if there is too little buffer left and buffer has reached absolute
+ // end of playlist
+ return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
+ }
+
+ /**
+ * Blacklists a playlist when an error occurs for a set amount of time
+ * making it unavailable for selection by the rendition selection algorithm
+ * and then forces a new playlist (rendition) selection.
+ *
+ * @param {Object=} error an optional error that may include the playlist
+ * to blacklist
+ * @param {Number=} blacklistDuration an optional number of seconds to blacklist the
+ * playlist
+ */
+
+ }, {
+ key: 'blacklistCurrentPlaylist',
+ value: function blacklistCurrentPlaylist() {
+ var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var blacklistDuration = arguments[1];
+
+ var currentPlaylist = void 0;
+ var nextPlaylist = void 0;
+
+ // If the `error` was generated by the playlist loader, it will contain
+ // the playlist we were trying to load (but failed) and that should be
+ // blacklisted instead of the currently selected playlist which is likely
+ // out-of-date in this scenario
+ currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();
+
+ blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration;
+
+ // If there is no current playlist, then an error occurred while we were
+ // trying to load the master OR while we were disposing of the tech
+ if (!currentPlaylist) {
+ this.error = error;
+
+ try {
+ return this.mediaSource.endOfStream('network');
+ } catch (e) {
+ return this.trigger('error');
+ }
+ }
+
+ var isFinalRendition = this.masterPlaylistLoader_.master.playlists.filter(isEnabled).length === 1;
+
+ if (isFinalRendition) {
+ // Never blacklisting this playlist because it's final rendition
+ videojs$1.log.warn('Problem encountered with the current ' + 'HLS playlist. Trying again since it is the final playlist.');
+
+ this.tech_.trigger('retryplaylist');
+ return this.masterPlaylistLoader_.load(isFinalRendition);
+ }
+ // Blacklist this playlist
+ currentPlaylist.excludeUntil = Date.now() + blacklistDuration * 1000;
+ this.tech_.trigger('blacklistplaylist');
+ this.tech_.trigger({ type: 'usage', name: 'hls-rendition-blacklisted' });
+
+ // Select a new playlist
+ nextPlaylist = this.selectPlaylist();
+ videojs$1.log.warn('Problem encountered with the current HLS playlist.' + (error.message ? ' ' + error.message : '') + ' Switching to another playlist.');
+
+ return this.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ /**
+ * Pause all segment loaders
+ */
+
+ }, {
+ key: 'pauseLoading',
+ value: function pauseLoading() {
+ this.mainSegmentLoader_.pause();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.pause();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.pause();
+ }
+ }
+
+ /**
+ * set the current time on all segment loaders
+ *
+ * @param {TimeRange} currentTime the current time to set
+ * @return {TimeRange} the current time
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ var buffered = findRange(this.tech_.buffered(), currentTime);
+
+ if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {
+ // return immediately if the metadata is not ready yet
+ return 0;
+ }
+
+ // it's clearly an edge-case but don't thrown an error if asked to
+ // seek within an empty playlist
+ if (!this.masterPlaylistLoader_.media().segments) {
+ return 0;
+ }
+
+ // In flash playback, the segment loaders should be reset on every seek, even
+ // in buffer seeks. If the seek location is already buffered, continue buffering as
+ // usual
+ // TODO: redo this comment
+ if (buffered && buffered.length) {
+ return currentTime;
+ }
+
+ // cancel outstanding requests so we begin buffering at the new
+ // location
+ this.mainSegmentLoader_.resetEverything();
+ this.mainSegmentLoader_.abort();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.resetEverything();
+ this.audioSegmentLoader_.abort();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.resetEverything();
+ this.subtitleSegmentLoader_.abort();
+ }
+
+ // start segment loader loading in case they are paused
+ this.load();
+ }
+
+ /**
+ * get the current duration
+ *
+ * @return {TimeRange} the duration
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ if (!this.masterPlaylistLoader_) {
+ return 0;
+ }
+
+ if (this.mediaSource) {
+ return this.mediaSource.duration;
+ }
+
+ return Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ }
+
+ /**
+ * check the seekable range
+ *
+ * @return {TimeRange} the seekable range
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.seekable_;
+ }
+ }, {
+ key: 'onSyncInfoUpdate_',
+ value: function onSyncInfoUpdate_() {
+ var mainSeekable = void 0;
+ var audioSeekable = void 0;
+
+ if (!this.masterPlaylistLoader_) {
+ return;
+ }
+
+ var media = this.masterPlaylistLoader_.media();
+
+ if (!media) {
+ return;
+ }
+
+ var expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ // not enough information to update seekable
+ return;
+ }
+
+ mainSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (mainSeekable.length === 0) {
+ return;
+ }
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
+ expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ return;
+ }
+
+ audioSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (audioSeekable.length === 0) {
+ return;
+ }
+ }
+
+ if (!audioSeekable) {
+ // seekable has been calculated based on buffering video data so it
+ // can be returned directly
+ this.seekable_ = mainSeekable;
+ } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
+ // seekables are pretty far off, rely on main
+ this.seekable_ = mainSeekable;
+ } else {
+ this.seekable_ = videojs$1.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
+ }
+
+ this.logger_('seekable updated [' + printableRange(this.seekable_) + ']');
+
+ this.tech_.trigger('seekablechanged');
+ }
+
+ /**
+ * Update the player duration
+ */
+
+ }, {
+ key: 'updateDuration',
+ value: function updateDuration() {
+ var _this6 = this;
+
+ var oldDuration = this.mediaSource.duration;
+ var newDuration = Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ var buffered = this.tech_.buffered();
+ var setDuration = function setDuration() {
+ _this6.mediaSource.duration = newDuration;
+ _this6.tech_.trigger('durationchange');
+
+ _this6.mediaSource.removeEventListener('sourceopen', setDuration);
+ };
+
+ if (buffered.length > 0) {
+ newDuration = Math.max(newDuration, buffered.end(buffered.length - 1));
+ }
+
+ // if the duration has changed, invalidate the cached value
+ if (oldDuration !== newDuration) {
+ // update the duration
+ if (this.mediaSource.readyState !== 'open') {
+ this.mediaSource.addEventListener('sourceopen', setDuration);
+ } else {
+ setDuration();
+ }
+ }
+ }
+
+ /**
+ * dispose of the MasterPlaylistController and everything
+ * that it controls
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ var _this7 = this;
+
+ this.decrypter_.terminate();
+ this.masterPlaylistLoader_.dispose();
+ this.mainSegmentLoader_.dispose();
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ var groups = _this7.mediaTypes_[type].groups;
+
+ for (var id in groups) {
+ groups[id].forEach(function (group) {
+ if (group.playlistLoader) {
+ group.playlistLoader.dispose();
+ }
+ });
+ }
+ });
+
+ this.audioSegmentLoader_.dispose();
+ this.subtitleSegmentLoader_.dispose();
+ }
+
+ /**
+ * return the master playlist object if we have one
+ *
+ * @return {Object} the master playlist object that we parsed
+ */
+
+ }, {
+ key: 'master',
+ value: function master() {
+ return this.masterPlaylistLoader_.master;
+ }
+
+ /**
+ * return the currently selected playlist
+ *
+ * @return {Object} the currently selected playlist object that we parsed
+ */
+
+ }, {
+ key: 'media',
+ value: function media() {
+ // playlist loader will not return media if it has not been fully loaded
+ return this.masterPlaylistLoader_.media() || this.initialMedia_;
+ }
+
+ /**
+ * setup our internal source buffers on our segment Loaders
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSourceBuffers_',
+ value: function setupSourceBuffers_() {
+ var media = this.masterPlaylistLoader_.media();
+ var mimeTypes = void 0;
+
+ // wait until a media playlist is available and the Media Source is
+ // attached
+ if (!media || this.mediaSource.readyState !== 'open') {
+ return;
+ }
+
+ mimeTypes = mimeTypesForPlaylist(this.masterPlaylistLoader_.master, media);
+ if (mimeTypes.length < 1) {
+ this.error = 'No compatible SourceBuffer configuration for the variant stream:' + media.resolvedUri;
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ this.configureLoaderMimeTypes_(mimeTypes);
+ // exclude any incompatible variant streams from future playlist
+ // selection
+ this.excludeIncompatibleVariants_(media);
+ }
+ }, {
+ key: 'configureLoaderMimeTypes_',
+ value: function configureLoaderMimeTypes_(mimeTypes) {
+ // If the content is demuxed, we can't start appending segments to a source buffer
+ // until both source buffers are set up, or else the browser may not let us add the
+ // second source buffer (it will assume we are playing either audio only or video
+ // only).
+ var sourceBufferEmitter =
+ // If there is more than one mime type
+ mimeTypes.length > 1 &&
+ // and the first mime type does not have muxed video and audio
+ mimeTypes[0].indexOf(',') === -1 &&
+ // and the two mime types are different (they can be the same in the case of audio
+ // only with alternate audio)
+ mimeTypes[0] !== mimeTypes[1] ?
+ // then we want to wait on the second source buffer
+ new videojs$1.EventTarget() :
+ // otherwise there is no need to wait as the content is either audio only,
+ // video only, or muxed content.
+ null;
+
+ this.mainSegmentLoader_.mimeType(mimeTypes[0], sourceBufferEmitter);
+ if (mimeTypes[1]) {
+ this.audioSegmentLoader_.mimeType(mimeTypes[1], sourceBufferEmitter);
+ }
+ }
+
+ /**
+ * Blacklists playlists with codecs that are unsupported by the browser.
+ */
+
+ }, {
+ key: 'excludeUnsupportedVariants_',
+ value: function excludeUnsupportedVariants_() {
+ this.master().playlists.forEach(function (variant) {
+ if (variant.attributes.CODECS && window$1.MediaSource && window$1.MediaSource.isTypeSupported && !window$1.MediaSource.isTypeSupported('video/mp4; codecs="' + mapLegacyAvcCodecs(variant.attributes.CODECS) + '"')) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+
+ /**
+ * Blacklist playlists that are known to be codec or
+ * stream-incompatible with the SourceBuffer configuration. For
+ * instance, Media Source Extensions would cause the video element to
+ * stall waiting for video data if you switched from a variant with
+ * video and audio to an audio-only one.
+ *
+ * @param {Object} media a media playlist compatible with the current
+ * set of SourceBuffers. Variants in the current master playlist that
+ * do not appear to have compatible codec or stream configurations
+ * will be excluded from the default playlist selection algorithm
+ * indefinitely.
+ * @private
+ */
+
+ }, {
+ key: 'excludeIncompatibleVariants_',
+ value: function excludeIncompatibleVariants_(media) {
+ var codecCount = 2;
+ var videoCodec = null;
+ var codecs = void 0;
+
+ if (media.attributes.CODECS) {
+ codecs = parseCodecs(media.attributes.CODECS);
+ videoCodec = codecs.videoCodec;
+ codecCount = codecs.codecCount;
+ }
+
+ this.master().playlists.forEach(function (variant) {
+ var variantCodecs = {
+ codecCount: 2,
+ videoCodec: null
+ };
+
+ if (variant.attributes.CODECS) {
+ variantCodecs = parseCodecs(variant.attributes.CODECS);
+ }
+
+ // if the streams differ in the presence or absence of audio or
+ // video, they are incompatible
+ if (variantCodecs.codecCount !== codecCount) {
+ variant.excludeUntil = Infinity;
+ }
+
+ // if h.264 is specified on the current playlist, some flavor of
+ // it must be specified on all compatible variants
+ if (variantCodecs.videoCodec !== videoCodec) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+ }, {
+ key: 'updateAdCues_',
+ value: function updateAdCues_(media) {
+ var offset = 0;
+ var seekable$$1 = this.seekable();
+
+ if (seekable$$1.length) {
+ offset = seekable$$1.start(0);
+ }
+
+ updateAdCues(media, this.cueTagsTrack_, offset);
+ }
+
+ /**
+ * Calculates the desired forward buffer length based on current time
+ *
+ * @return {Number} Desired forward buffer length in seconds
+ */
+
+ }, {
+ key: 'goalBufferLength',
+ value: function goalBufferLength() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.GOAL_BUFFER_LENGTH;
+ var rate = Config.GOAL_BUFFER_LENGTH_RATE;
+ var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+
+ /**
+ * Calculates the desired buffer low water line based on current time
+ *
+ * @return {Number} Desired buffer low water line in seconds
+ */
+
+ }, {
+ key: 'bufferLowWaterLine',
+ value: function bufferLowWaterLine() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.BUFFER_LOW_WATER_LINE;
+ var rate = Config.BUFFER_LOW_WATER_LINE_RATE;
+ var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+ }]);
+ return MasterPlaylistController;
+}(videojs$1.EventTarget);
+
+/**
+ * Returns a function that acts as the Enable/disable playlist function.
+ *
+ * @param {PlaylistLoader} loader - The master playlist loader
+ * @param {String} playlistUri - uri of the playlist
+ * @param {Function} changePlaylistFn - A function to be called after a
+ * playlist's enabled-state has been changed. Will NOT be called if a
+ * playlist's enabled-state is unchanged
+ * @param {Boolean=} enable - Value to set the playlist enabled-state to
+ * or if undefined returns the current enabled-state for the playlist
+ * @return {Function} Function for setting/getting enabled
+ */
+var enableFunction = function enableFunction(loader, playlistUri, changePlaylistFn) {
+ return function (enable) {
+ var playlist = loader.master.playlists[playlistUri];
+ var incompatible = isIncompatible(playlist);
+ var currentlyEnabled = isEnabled(playlist);
+
+ if (typeof enable === 'undefined') {
+ return currentlyEnabled;
+ }
+
+ if (enable) {
+ delete playlist.disabled;
+ } else {
+ playlist.disabled = true;
+ }
+
+ if (enable !== currentlyEnabled && !incompatible) {
+ // Ensure the outside world knows about our changes
+ changePlaylistFn();
+ if (enable) {
+ loader.trigger('renditionenabled');
+ } else {
+ loader.trigger('renditiondisabled');
+ }
+ }
+ return enable;
+ };
+};
+
+/**
+ * The representation object encapsulates the publicly visible information
+ * in a media playlist along with a setter/getter-type function (enabled)
+ * for changing the enabled-state of a particular playlist entry
+ *
+ * @class Representation
+ */
+
+var Representation = function Representation(hlsHandler, playlist, id) {
+ classCallCheck$1(this, Representation);
+
+ // Get a reference to a bound version of fastQualityChange_
+ var fastChangeFunction = hlsHandler.masterPlaylistController_.fastQualityChange_.bind(hlsHandler.masterPlaylistController_);
+
+ // some playlist attributes are optional
+ if (playlist.attributes.RESOLUTION) {
+ var resolution = playlist.attributes.RESOLUTION;
+
+ this.width = resolution.width;
+ this.height = resolution.height;
+ }
+
+ this.bandwidth = playlist.attributes.BANDWIDTH;
+
+ // The id is simply the ordinality of the media playlist
+ // within the master playlist
+ this.id = id;
+
+ // Partially-apply the enableFunction to create a playlist-
+ // specific variant
+ this.enabled = enableFunction(hlsHandler.playlists, playlist.uri, fastChangeFunction);
+};
+
+/**
+ * A mixin function that adds the `representations` api to an instance
+ * of the HlsHandler class
+ * @param {HlsHandler} hlsHandler - An instance of HlsHandler to add the
+ * representation API into
+ */
+
+var renditionSelectionMixin = function renditionSelectionMixin(hlsHandler) {
+ var playlists = hlsHandler.playlists;
+
+ // Add a single API-specific function to the HlsHandler instance
+ hlsHandler.representations = function () {
+ return playlists.master.playlists.filter(function (media) {
+ return !isIncompatible(media);
+ }).map(function (e, i) {
+ return new Representation(hlsHandler, e, e.uri);
+ });
+ };
+};
+
+/**
+ * @file playback-watcher.js
+ *
+ * Playback starts, and now my watch begins. It shall not end until my death. I shall
+ * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
+ * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
+ * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
+ * my life and honor to the Playback Watch, for this Player and all the Players to come.
+ */
+
+// Set of events that reset the playback-watcher time check logic and clear the timeout
+var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
+
+/**
+ * @class PlaybackWatcher
+ */
+
+var PlaybackWatcher = function () {
+ /**
+ * Represents an PlaybackWatcher object.
+ * @constructor
+ * @param {object} options an object that includes the tech and settings
+ */
+ function PlaybackWatcher(options) {
+ var _this = this;
+
+ classCallCheck$1(this, PlaybackWatcher);
+
+ this.tech_ = options.tech;
+ this.seekable = options.seekable;
+ this.seekTo = options.seekTo;
+
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = null;
+ this.timer_ = null;
+ this.checkCurrentTimeTimeout_ = null;
+ this.logger_ = logger('PlaybackWatcher');
+
+ this.logger_('initialize');
+
+ var canPlayHandler = function canPlayHandler() {
+ return _this.monitorCurrentTime_();
+ };
+ var waitingHandler = function waitingHandler() {
+ return _this.techWaiting_();
+ };
+ var cancelTimerHandler = function cancelTimerHandler() {
+ return _this.cancelTimer_();
+ };
+ var fixesBadSeeksHandler = function fixesBadSeeksHandler() {
+ return _this.fixesBadSeeks_();
+ };
+
+ this.tech_.on('seekablechanged', fixesBadSeeksHandler);
+ this.tech_.on('waiting', waitingHandler);
+ this.tech_.on(timerCancelEvents, cancelTimerHandler);
+ this.tech_.on('canplay', canPlayHandler);
+
+ // Define the dispose function to clean up our events
+ this.dispose = function () {
+ _this.logger_('dispose');
+ _this.tech_.off('seekablechanged', fixesBadSeeksHandler);
+ _this.tech_.off('waiting', waitingHandler);
+ _this.tech_.off(timerCancelEvents, cancelTimerHandler);
+ _this.tech_.off('canplay', canPlayHandler);
+ if (_this.checkCurrentTimeTimeout_) {
+ window$1.clearTimeout(_this.checkCurrentTimeTimeout_);
+ }
+ _this.cancelTimer_();
+ };
+ }
+
+ /**
+ * Periodically check current time to see if playback stopped
+ *
+ * @private
+ */
+
+ createClass$1(PlaybackWatcher, [{
+ key: 'monitorCurrentTime_',
+ value: function monitorCurrentTime_() {
+ this.checkCurrentTime_();
+
+ if (this.checkCurrentTimeTimeout_) {
+ window$1.clearTimeout(this.checkCurrentTimeTimeout_);
+ }
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ this.checkCurrentTimeTimeout_ = window$1.setTimeout(this.monitorCurrentTime_.bind(this), 250);
+ }
+
+ /**
+ * The purpose of this function is to emulate the "waiting" event on
+ * browsers that do not emit it when they are waiting for more
+ * data to continue playback
+ *
+ * @private
+ */
+
+ }, {
+ key: 'checkCurrentTime_',
+ value: function checkCurrentTime_() {
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = this.tech_.currentTime();
+ return;
+ }
+
+ if (this.tech_.paused() || this.tech_.seeking()) {
+ return;
+ }
+
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
+ // If current time is at the end of the final buffered region, then any playback
+ // stall is most likely caused by buffering in a low bandwidth environment. The tech
+ // should fire a `waiting` event in this scenario, but due to browser and tech
+ // inconsistencies. Calling `techWaiting_` here allows us to simulate
+ // responding to a native `waiting` event when the tech fails to emit one.
+ return this.techWaiting_();
+ }
+
+ if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ this.waiting_();
+ } else if (currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ } else {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = currentTime;
+ }
+ }
+
+ /**
+ * Cancels any pending timers and resets the 'timeupdate' mechanism
+ * designed to detect that we are stalled
+ *
+ * @private
+ */
+
+ }, {
+ key: 'cancelTimer_',
+ value: function cancelTimer_() {
+ this.consecutiveUpdates = 0;
+
+ if (this.timer_) {
+ this.logger_('cancelTimer_');
+ clearTimeout(this.timer_);
+ }
+
+ this.timer_ = null;
+ }
+
+ /**
+ * Fixes situations where there's a bad seek
+ *
+ * @return {Boolean} whether an action was taken to fix the seek
+ * @private
+ */
+
+ }, {
+ key: 'fixesBadSeeks_',
+ value: function fixesBadSeeks_() {
+ var seeking = this.tech_.seeking();
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+ var seekTo = void 0;
+
+ if (seeking && this.afterSeekableWindow_(seekable, currentTime)) {
+ var seekableEnd = seekable.end(seekable.length - 1);
+
+ // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
+ seekTo = seekableEnd;
+ }
+
+ if (seeking && this.beforeSeekableWindow_(seekable, currentTime)) {
+ var seekableStart = seekable.start(0);
+
+ // sync to the beginning of the live window
+ // provide a buffer of .1 seconds to handle rounding/imprecise numbers
+ seekTo = seekableStart + SAFE_TIME_DELTA;
+ }
+
+ if (typeof seekTo !== 'undefined') {
+ this.logger_('Trying to seek outside of seekable at time ' + currentTime + ' with ' + ('seekable range ' + printableRange(seekable) + '. Seeking to ') + (seekTo + '.'));
+
+ this.seekTo(seekTo);
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Handler for situations when we determine the player is waiting.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'waiting_',
+ value: function waiting_() {
+ if (this.techWaiting_()) {
+ return;
+ }
+
+ // All tech waiting checks failed. Use last resort correction
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+ var currentRange = findRange(buffered, currentTime);
+
+ // Sometimes the player can stall for unknown reasons within a contiguous buffered
+ // region with no indication that anything is amiss (seen in Firefox). Seeking to
+ // currentTime is usually enough to kickstart the player. This checks that the player
+ // is currently within a buffered region before attempting a corrective seek.
+ // Chrome does not appear to continue `timeupdate` events after a `waiting` event
+ // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
+ // make sure there is ~3 seconds of forward buffer before taking any corrective action
+ // to avoid triggering an `unknownwaiting` event when the network is slow.
+ if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ this.logger_('Stopped at ' + currentTime + ' while inside a buffered region ' + ('[' + currentRange.start(0) + ' -> ' + currentRange.end(0) + ']. Attempting to resume ') + 'playback by seeking to the current time.');
+
+ // unknown waiting corrections may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-unknown-waiting' });
+ return;
+ }
+ }
+
+ /**
+ * Handler for situations when the tech fires a `waiting` event
+ *
+ * @return {Boolean}
+ * True if an action (or none) was needed to correct the waiting. False if no
+ * checks passed
+ * @private
+ */
+
+ }, {
+ key: 'techWaiting_',
+ value: function techWaiting_() {
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ // Tech is seeking or bad seek fixed, no action needed
+ return true;
+ }
+
+ if (this.tech_.seeking() || this.timer_ !== null) {
+ // Tech is seeking or already waiting on another action, no action needed
+ return true;
+ }
+
+ if (this.beforeSeekableWindow_(seekable, currentTime)) {
+ var livePoint = seekable.end(seekable.length - 1);
+
+ this.logger_('Fell out of live window at time ' + currentTime + '. Seeking to ' + ('live point (seekable end) ' + livePoint));
+ this.cancelTimer_();
+ this.seekTo(livePoint);
+
+ // live window resyncs may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-live-resync' });
+ return true;
+ }
+
+ var buffered = this.tech_.buffered();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ if (this.videoUnderflow_(nextRange, buffered, currentTime)) {
+ // Even though the video underflowed and was stuck in a gap, the audio overplayed
+ // the gap, leading currentTime into a buffered range. Seeking to currentTime
+ // allows the video to catch up to the audio position without losing any audio
+ // (only suffering ~3 seconds of frozen video and a pause in audio playback).
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ // video underflow may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-video-underflow' });
+ return true;
+ }
+
+ // check for gap
+ if (nextRange.length > 0) {
+ var difference = nextRange.start(0) - currentTime;
+
+ this.logger_('Stopped at ' + currentTime + ', setting timer for ' + difference + ', seeking ' + ('to ' + nextRange.start(0)));
+
+ this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);
+ return true;
+ }
+
+ // All checks failed. Returning false to indicate failure to correct waiting
+ return false;
+ }
+ }, {
+ key: 'afterSeekableWindow_',
+ value: function afterSeekableWindow_(seekable, currentTime) {
+ if (!seekable.length) {
+ // we can't make a solid case if there's no seekable, default to false
+ return false;
+ }
+
+ if (currentTime > seekable.end(seekable.length - 1) + SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'beforeSeekableWindow_',
+ value: function beforeSeekableWindow_(seekable, currentTime) {
+ if (seekable.length &&
+ // can't fall before 0 and 0 seekable start identifies VOD stream
+ seekable.start(0) > 0 && currentTime < seekable.start(0) - SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'videoUnderflow_',
+ value: function videoUnderflow_(nextRange, buffered, currentTime) {
+ if (nextRange.length === 0) {
+ // Even if there is no available next range, there is still a possibility we are
+ // stuck in a gap due to video underflow.
+ var gap = this.gapFromVideoUnderflow_(buffered, currentTime);
+
+ if (gap) {
+ this.logger_('Encountered a gap in video from ' + gap.start + ' to ' + gap.end + '. ' + ('Seeking to current time ' + currentTime));
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Timer callback. If playback still has not proceeded, then we seek
+ * to the start of the next buffered region.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'skipTheGap_',
+ value: function skipTheGap_(scheduledCurrentTime) {
+ var buffered = this.tech_.buffered();
+ var currentTime = this.tech_.currentTime();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ this.cancelTimer_();
+
+ if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
+ return;
+ }
+
+ this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0));
+
+ // only seek if we still have not played
+ this.seekTo(nextRange.start(0) + TIME_FUDGE_FACTOR);
+
+ this.tech_.trigger({ type: 'usage', name: 'hls-gap-skip' });
+ }
+ }, {
+ key: 'gapFromVideoUnderflow_',
+ value: function gapFromVideoUnderflow_(buffered, currentTime) {
+ // At least in Chrome, if there is a gap in the video buffer, the audio will continue
+ // playing for ~3 seconds after the video gap starts. This is done to account for
+ // video buffer underflow/underrun (note that this is not done when there is audio
+ // buffer underflow/underrun -- in that case the video will stop as soon as it
+ // encounters the gap, as audio stalls are more noticeable/jarring to a user than
+ // video stalls). The player's time will reflect the playthrough of audio, so the
+ // time will appear as if we are in a buffered region, even if we are stuck in a
+ // "gap."
+ //
+ // Example:
+ // video buffer: 0 => 10.1, 10.2 => 20
+ // audio buffer: 0 => 20
+ // overall buffer: 0 => 10.1, 10.2 => 20
+ // current time: 13
+ //
+ // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
+ // however, the audio continued playing until it reached ~3 seconds past the gap
+ // (13 seconds), at which point it stops as well. Since current time is past the
+ // gap, findNextRange will return no ranges.
+ //
+ // To check for this issue, we see if there is a gap that starts somewhere within
+ // a 3 second range (3 seconds +/- 1 second) back from our current time.
+ var gaps = findGaps(buffered);
+
+ for (var i = 0; i < gaps.length; i++) {
+ var start = gaps.start(i);
+ var end = gaps.end(i);
+
+ // gap is starts no more than 4 seconds back
+ if (currentTime - start < 4 && currentTime - start > 2) {
+ return {
+ start: start,
+ end: end
+ };
+ }
+ }
+
+ return null;
+ }
+ }]);
+ return PlaybackWatcher;
+}();
+
+var defaultOptions = {
+ errorInterval: 30,
+ getSource: function getSource(next) {
+ var tech = this.tech({ IWillNotUseThisInPlugins: true });
+ var sourceObj = tech.currentSource_;
+
+ return next(sourceObj);
+ }
+};
+
+/**
+ * Main entry point for the plugin
+ *
+ * @param {Player} player a reference to a videojs Player instance
+ * @param {Object} [options] an object with plugin options
+ * @private
+ */
+var initPlugin = function initPlugin(player, options) {
+ var lastCalled = 0;
+ var seekTo = 0;
+ var localOptions = videojs$1.mergeOptions(defaultOptions, options);
+
+ player.ready(function () {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-initialized' });
+ });
+
+ /**
+ * Player modifications to perform that must wait until `loadedmetadata`
+ * has been triggered
+ *
+ * @private
+ */
+ var loadedMetadataHandler = function loadedMetadataHandler() {
+ if (seekTo) {
+ player.currentTime(seekTo);
+ }
+ };
+
+ /**
+ * Set the source on the player element, play, and seek if necessary
+ *
+ * @param {Object} sourceObj An object specifying the source url and mime-type to play
+ * @private
+ */
+ var setSource = function setSource(sourceObj) {
+ if (sourceObj === null || sourceObj === undefined) {
+ return;
+ }
+ seekTo = player.duration() !== Infinity && player.currentTime() || 0;
+
+ player.one('loadedmetadata', loadedMetadataHandler);
+
+ player.src(sourceObj);
+ player.trigger({ type: 'usage', name: 'hls-error-reload' });
+ player.play();
+ };
+
+ /**
+ * Attempt to get a source from either the built-in getSource function
+ * or a custom function provided via the options
+ *
+ * @private
+ */
+ var errorHandler = function errorHandler() {
+ // Do not attempt to reload the source if a source-reload occurred before
+ // 'errorInterval' time has elapsed since the last source-reload
+ if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-canceled' });
+ return;
+ }
+
+ if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
+ videojs$1.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
+ return;
+ }
+ lastCalled = Date.now();
+
+ return localOptions.getSource.call(player, setSource);
+ };
+
+ /**
+ * Unbind any event handlers that were bound by the plugin
+ *
+ * @private
+ */
+ var cleanupEvents = function cleanupEvents() {
+ player.off('loadedmetadata', loadedMetadataHandler);
+ player.off('error', errorHandler);
+ player.off('dispose', cleanupEvents);
+ };
+
+ /**
+ * Cleanup before re-initializing the plugin
+ *
+ * @param {Object} [newOptions] an object with plugin options
+ * @private
+ */
+ var reinitPlugin = function reinitPlugin(newOptions) {
+ cleanupEvents();
+ initPlugin(player, newOptions);
+ };
+
+ player.on('error', errorHandler);
+ player.on('dispose', cleanupEvents);
+
+ // Overwrite the plugin function so that we can correctly cleanup before
+ // initializing the plugin
+ player.reloadSourceOnError = reinitPlugin;
+};
+
+/**
+ * Reload the source when an error is detected as long as there
+ * wasn't an error previously within the last 30 seconds
+ *
+ * @param {Object} [options] an object with plugin options
+ */
+var reloadSourceOnError = function reloadSourceOnError(options) {
+ initPlugin(this, options);
+};
+
+var version$1 = "1.2.6";
+
+// since VHS handles HLS and DASH (and in the future, more types), use * to capture all
+videojs$1.use('*', function (player) {
+ return {
+ setSource: function setSource(srcObj, next) {
+ // pass null as the first argument to indicate that the source is not rejected
+ next(null, srcObj);
+ },
+
+ // VHS needs to know when seeks happen. For external seeks (generated at the player
+ // level), this middleware will capture the action. For internal seeks (generated at
+ // the tech level), we use a wrapped function so that we can handle it on our own
+ // (specified elsewhere).
+ setCurrentTime: function setCurrentTime(time) {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(time);
+ }
+
+ return time;
+ },
+
+ // Sync VHS after play requests.
+ // This specifically handles replay where the order of actions is
+ // play, video element will seek to 0 (skipping the setCurrentTime middleware)
+ // then triggers a play event.
+ play: function play() {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(player.currentTime());
+ }
+ }
+ };
+});
+
+/**
+ * @file videojs-http-streaming.js
+ *
+ * The main file for the HLS project.
+ * License: https://github.com/videojs/videojs-http-streaming/blob/master/LICENSE
+ */
+
+var Hls$1 = {
+ PlaylistLoader: PlaylistLoader,
+ Playlist: Playlist,
+ Decrypter: aesDecrypter.Decrypter,
+ AsyncStream: aesDecrypter.AsyncStream,
+ decrypt: aesDecrypter.decrypt,
+ utils: utils,
+
+ STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
+ INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
+ comparePlaylistBandwidth: comparePlaylistBandwidth,
+ comparePlaylistResolution: comparePlaylistResolution,
+
+ xhr: xhrFactory()
+};
+
+// 0.5 MB/s
+var INITIAL_BANDWIDTH = 4194304;
+
+// Define getter/setters for config properites
+['GOAL_BUFFER_LENGTH', 'MAX_GOAL_BUFFER_LENGTH', 'GOAL_BUFFER_LENGTH_RATE', 'BUFFER_LOW_WATER_LINE', 'MAX_BUFFER_LOW_WATER_LINE', 'BUFFER_LOW_WATER_LINE_RATE', 'BANDWIDTH_VARIANCE'].forEach(function (prop) {
+ Object.defineProperty(Hls$1, prop, {
+ get: function get$$1() {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+ return Config[prop];
+ },
+ set: function set$$1(value) {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+
+ if (typeof value !== 'number' || value < 0) {
+ videojs$1.log.warn('value of Hls.' + prop + ' must be greater than or equal to 0');
+ return;
+ }
+
+ Config[prop] = value;
+ }
+ });
+});
+
+var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
+ var mpegurlRE = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
+
+ if (mpegurlRE.test(type)) {
+ return 'hls';
+ }
+
+ var dashRE = /^application\/dash\+xml/i;
+
+ if (dashRE.test(type)) {
+ return 'dash';
+ }
+
+ return null;
+};
+
+/**
+ * Updates the selectedIndex of the QualityLevelList when a mediachange happens in hls.
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
+ * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
+ * @function handleHlsMediaChange
+ */
+var handleHlsMediaChange = function handleHlsMediaChange(qualityLevels, playlistLoader) {
+ var newPlaylist = playlistLoader.media();
+ var selectedIndex = -1;
+
+ for (var i = 0; i < qualityLevels.length; i++) {
+ if (qualityLevels[i].id === newPlaylist.uri) {
+ selectedIndex = i;
+ break;
+ }
+ }
+
+ qualityLevels.selectedIndex_ = selectedIndex;
+ qualityLevels.trigger({
+ selectedIndex: selectedIndex,
+ type: 'change'
+ });
+};
+
+/**
+ * Adds quality levels to list once playlist metadata is available
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
+ * @param {Object} hls Hls object to listen to for media events.
+ * @function handleHlsLoadedMetadata
+ */
+var handleHlsLoadedMetadata = function handleHlsLoadedMetadata(qualityLevels, hls) {
+ hls.representations().forEach(function (rep) {
+ qualityLevels.addQualityLevel(rep);
+ });
+ handleHlsMediaChange(qualityLevels, hls.playlists);
+};
+
+// HLS is a source handler, not a tech. Make sure attempts to use it
+// as one do not cause exceptions.
+Hls$1.canPlaySource = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+};
+
+var emeKeySystems = function emeKeySystems(keySystemOptions, videoPlaylist, audioPlaylist) {
+ if (!keySystemOptions) {
+ return keySystemOptions;
+ }
+
+ // upsert the content types based on the selected playlist
+ var keySystemContentTypes = {};
+
+ for (var keySystem in keySystemOptions) {
+ keySystemContentTypes[keySystem] = {
+ audioContentType: 'audio/mp4; codecs="' + audioPlaylist.attributes.CODECS + '"',
+ videoContentType: 'video/mp4; codecs="' + videoPlaylist.attributes.CODECS + '"'
+ };
+
+ if (videoPlaylist.contentProtection && videoPlaylist.contentProtection[keySystem] && videoPlaylist.contentProtection[keySystem].pssh) {
+ keySystemContentTypes[keySystem].pssh = videoPlaylist.contentProtection[keySystem].pssh;
+ }
+
+ // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
+ // so we need to prevent overwriting the URL entirely
+ if (typeof keySystemOptions[keySystem] === 'string') {
+ keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
+ }
+ }
+
+ return videojs$1.mergeOptions(keySystemOptions, keySystemContentTypes);
+};
+
+var setupEmeOptions = function setupEmeOptions(hlsHandler) {
+ if (hlsHandler.options_.sourceType !== 'dash') {
+ return;
+ }
+ var player = videojs$1.players[hlsHandler.tech_.options_.playerId];
+
+ if (player.eme) {
+ var sourceOptions = emeKeySystems(hlsHandler.source_.keySystems, hlsHandler.playlists.media(), hlsHandler.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());
+
+ if (sourceOptions) {
+ player.currentSource().keySystems = sourceOptions;
+ }
+ }
+};
+
+/**
+ * Whether the browser has built-in HLS support.
+ */
+Hls$1.supportsNativeHls = function () {
+ var video = document.createElement('video');
+
+ // native HLS is definitely not supported if HTML5 video isn't
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ // HLS manifests can go by many mime-types
+ var canPlay = [
+ // Apple santioned
+ 'application/vnd.apple.mpegurl',
+ // Apple sanctioned for backwards compatibility
+ 'audio/mpegurl',
+ // Very common
+ 'audio/x-mpegurl',
+ // Very common
+ 'application/x-mpegurl',
+ // Included for completeness
+ 'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
+
+ return canPlay.some(function (canItPlay) {
+ return (/maybe|probably/i.test(video.canPlayType(canItPlay))
+ );
+ });
+}();
+
+Hls$1.supportsNativeDash = function () {
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ return (/maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'))
+ );
+}();
+
+Hls$1.supportsTypeNatively = function (type) {
+ if (type === 'hls') {
+ return Hls$1.supportsNativeHls;
+ }
+
+ if (type === 'dash') {
+ return Hls$1.supportsNativeDash;
+ }
+
+ return false;
+};
+
+/**
+ * HLS is a source handler, not a tech. Make sure attempts to use it
+ * as one do not cause exceptions.
+ */
+Hls$1.isSupported = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+};
+
+var Component$1 = videojs$1.getComponent('Component');
+
+/**
+ * The Hls Handler object, where we orchestrate all of the parts
+ * of HLS to interact with video.js
+ *
+ * @class HlsHandler
+ * @extends videojs.Component
+ * @param {Object} source the soruce object
+ * @param {Tech} tech the parent tech object
+ * @param {Object} options optional and required options
+ */
+
+var HlsHandler = function (_Component) {
+ inherits$1(HlsHandler, _Component);
+
+ function HlsHandler(source, tech, options) {
+ classCallCheck$1(this, HlsHandler);
+
+ // tech.player() is deprecated but setup a reference to HLS for
+ // backwards-compatibility
+ var _this = possibleConstructorReturn$1(this, (HlsHandler.__proto__ || Object.getPrototypeOf(HlsHandler)).call(this, tech, options.hls));
+
+ if (tech.options_ && tech.options_.playerId) {
+ var _player = videojs$1(tech.options_.playerId);
+
+ if (!_player.hasOwnProperty('hls')) {
+ Object.defineProperty(_player, 'hls', {
+ get: function get$$1() {
+ videojs$1.log.warn('player.hls is deprecated. Use player.tech().hls instead.');
+ tech.trigger({ type: 'usage', name: 'hls-player-access' });
+ return _this;
+ }
+ });
+ }
+
+ // Set up a reference to the HlsHandler from player.vhs. This allows users to start
+ // migrating from player.tech_.hls... to player.vhs... for API access. Although this
+ // isn't the most appropriate form of reference for video.js (since all APIs should
+ // be provided through core video.js), it is a common pattern for plugins, and vhs
+ // will act accordingly.
+ _player.vhs = _this;
+ // deprecated, for backwards compatibility
+ _player.dash = _this;
+ }
+
+ _this.tech_ = tech;
+ _this.source_ = source;
+ _this.stats = {};
+ _this.setOptions_();
+
+ if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
+ tech.overrideNativeAudioTracks(true);
+ tech.overrideNativeVideoTracks(true);
+ } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
+ // overriding native HLS only works if audio tracks have been emulated
+ // error early if we're misconfigured
+ throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');
+ }
+
+ // listen for fullscreenchange events for this player so that we
+ // can adjust our quality selection quickly
+ _this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {
+ var fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;
+
+ if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {
+ _this.masterPlaylistController_.smoothQualityChange_();
+ }
+ });
+ _this.on(_this.tech_, 'error', function () {
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.pauseLoading();
+ }
+ });
+
+ _this.on(_this.tech_, 'play', _this.play);
+ return _this;
+ }
+
+ createClass$1(HlsHandler, [{
+ key: 'setOptions_',
+ value: function setOptions_() {
+ var _this2 = this;
+
+ // defaults
+ this.options_.withCredentials = this.options_.withCredentials || false;
+
+ if (typeof this.options_.blacklistDuration !== 'number') {
+ this.options_.blacklistDuration = 5 * 60;
+ }
+
+ // start playlist selection at a reasonable bandwidth for
+ // broadband internet (0.5 MB/s) or mobile (0.0625 MB/s)
+ if (typeof this.options_.bandwidth !== 'number') {
+ this.options_.bandwidth = INITIAL_BANDWIDTH;
+ }
+
+ // If the bandwidth number is unchanged from the initial setting
+ // then this takes precedence over the enableLowInitialPlaylist option
+ this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === INITIAL_BANDWIDTH;
+
+ // grab options passed to player.src
+ ['withCredentials', 'bandwidth'].forEach(function (option) {
+ if (typeof _this2.source_[option] !== 'undefined') {
+ _this2.options_[option] = _this2.source_[option];
+ }
+ });
+
+ this.bandwidth = this.options_.bandwidth;
+ }
+ /**
+ * called when player.src gets called, handle a new source
+ *
+ * @param {Object} src the source object to handle
+ */
+
+ }, {
+ key: 'src',
+ value: function src(_src, type) {
+ var _this3 = this;
+
+ // do nothing if the src is falsey
+ if (!_src) {
+ return;
+ }
+ this.setOptions_();
+ // add master playlist controller options
+ this.options_.url = this.source_.src;
+ this.options_.tech = this.tech_;
+ this.options_.externHls = Hls$1;
+ this.options_.sourceType = simpleTypeFromSourceType(type);
+ // Whenever we seek internally, we should update both the tech and call our own
+ // setCurrentTime function. This is needed because "seeking" events aren't always
+ // reliable. External seeks (via the player object) are handled via middleware.
+ this.options_.seekTo = function (time) {
+ _this3.tech_.setCurrentTime(time);
+ _this3.setCurrentTime(time);
+ };
+
+ this.masterPlaylistController_ = new MasterPlaylistController(this.options_);
+ this.playbackWatcher_ = new PlaybackWatcher(videojs$1.mergeOptions(this.options_, {
+ seekable: function seekable$$1() {
+ return _this3.seekable();
+ }
+ }));
+
+ this.masterPlaylistController_.on('error', function () {
+ var player = videojs$1.players[_this3.tech_.options_.playerId];
+
+ player.error(_this3.masterPlaylistController_.error);
+ });
+
+ // `this` in selectPlaylist should be the HlsHandler for backwards
+ // compatibility with < v2
+ this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : Hls$1.STANDARD_PLAYLIST_SELECTOR.bind(this);
+
+ this.masterPlaylistController_.selectInitialPlaylist = Hls$1.INITIAL_PLAYLIST_SELECTOR.bind(this);
+
+ // re-expose some internal objects for backwards compatibility with < v2
+ this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;
+ this.mediaSource = this.masterPlaylistController_.mediaSource;
+
+ // Proxy assignment of some properties to the master playlist
+ // controller. Using a custom property for backwards compatibility
+ // with < v2
+ Object.defineProperties(this, {
+ selectPlaylist: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.selectPlaylist;
+ },
+ set: function set$$1(selectPlaylist) {
+ this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);
+ }
+ },
+ throughput: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;
+ },
+ set: function set$$1(throughput) {
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput;
+ // By setting `count` to 1 the throughput value becomes the starting value
+ // for the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;
+ }
+ },
+ bandwidth: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.bandwidth;
+ },
+ set: function set$$1(bandwidth) {
+ this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth;
+ // setting the bandwidth manually resets the throughput counter
+ // `count` is set to zero that current value of `rate` isn't included
+ // in the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput = {
+ rate: 0,
+ count: 0
+ };
+ }
+ },
+ /**
+ * `systemBandwidth` is a combination of two serial processes bit-rates. The first
+ * is the network bitrate provided by `bandwidth` and the second is the bitrate of
+ * the entire process after that - decryption, transmuxing, and appending - provided
+ * by `throughput`.
+ *
+ * Since the two process are serial, the overall system bandwidth is given by:
+ * sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+ */
+ systemBandwidth: {
+ get: function get$$1() {
+ var invBandwidth = 1 / (this.bandwidth || 1);
+ var invThroughput = void 0;
+
+ if (this.throughput > 0) {
+ invThroughput = 1 / this.throughput;
+ } else {
+ invThroughput = 0;
+ }
+
+ var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
+
+ return systemBitrate;
+ },
+ set: function set$$1() {
+ videojs$1.log.error('The "systemBandwidth" property is read-only');
+ }
+ }
+ });
+
+ Object.defineProperties(this.stats, {
+ bandwidth: {
+ get: function get$$1() {
+ return _this3.bandwidth || 0;
+ },
+ enumerable: true
+ },
+ mediaRequests: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequests_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsAborted: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsTimedout: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsErrored: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;
+ },
+ enumerable: true
+ },
+ mediaTransferDuration: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;
+ },
+ enumerable: true
+ },
+ mediaBytesTransferred: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;
+ },
+ enumerable: true
+ },
+ mediaSecondsLoaded: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;
+ },
+ enumerable: true
+ },
+ buffered: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.buffered());
+ },
+ enumerable: true
+ },
+ currentTime: {
+ get: function get$$1() {
+ return _this3.tech_.currentTime();
+ },
+ enumerable: true
+ },
+ currentSource: {
+ get: function get$$1() {
+ return _this3.tech_.currentSource_;
+ },
+ enumerable: true
+ },
+ currentTech: {
+ get: function get$$1() {
+ return _this3.tech_.name_;
+ },
+ enumerable: true
+ },
+ duration: {
+ get: function get$$1() {
+ return _this3.tech_.duration();
+ },
+ enumerable: true
+ },
+ master: {
+ get: function get$$1() {
+ return _this3.playlists.master;
+ },
+ enumerable: true
+ },
+ playerDimensions: {
+ get: function get$$1() {
+ return _this3.tech_.currentDimensions();
+ },
+ enumerable: true
+ },
+ seekable: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.seekable());
+ },
+ enumerable: true
+ },
+ timestamp: {
+ get: function get$$1() {
+ return Date.now();
+ },
+ enumerable: true
+ },
+ videoPlaybackQuality: {
+ get: function get$$1() {
+ return _this3.tech_.getVideoPlaybackQuality();
+ },
+ enumerable: true
+ }
+ });
+
+ this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ // Add the manual rendition mix-in to HlsHandler
+ renditionSelectionMixin(_this3);
+ setupEmeOptions(_this3);
+ });
+
+ // the bandwidth of the primary segment loader is our best
+ // estimate of overall bandwidth
+ this.on(this.masterPlaylistController_, 'progress', function () {
+ this.tech_.trigger('progress');
+ });
+
+ this.tech_.ready(function () {
+ return _this3.setupQualityLevels_();
+ });
+
+ // do nothing if the tech has been disposed already
+ // this can occur if someone sets the src in player.ready(), for instance
+ if (!this.tech_.el()) {
+ return;
+ }
+
+ this.tech_.src(videojs$1.URL.createObjectURL(this.masterPlaylistController_.mediaSource));
+ }
+
+ /**
+ * Initializes the quality levels and sets listeners to update them.
+ *
+ * @method setupQualityLevels_
+ * @private
+ */
+
+ }, {
+ key: 'setupQualityLevels_',
+ value: function setupQualityLevels_() {
+ var _this4 = this;
+
+ var player = videojs$1.players[this.tech_.options_.playerId];
+
+ if (player && player.qualityLevels) {
+ this.qualityLevels_ = player.qualityLevels();
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ handleHlsLoadedMetadata(_this4.qualityLevels_, _this4);
+ });
+
+ this.playlists.on('mediachange', function () {
+ handleHlsMediaChange(_this4.qualityLevels_, _this4.playlists);
+ });
+ }
+ }
+
+ /**
+ * Begin playing the video.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ this.masterPlaylistController_.play();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ this.masterPlaylistController_.setCurrentTime(currentTime);
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ return this.masterPlaylistController_.duration();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.masterPlaylistController_.seekable();
+ }
+
+ /**
+ * Abort all outstanding work and cleanup.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ if (this.playbackWatcher_) {
+ this.playbackWatcher_.dispose();
+ }
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.dispose();
+ }
+ if (this.qualityLevels_) {
+ this.qualityLevels_.dispose();
+ }
+ get$2(HlsHandler.prototype.__proto__ || Object.getPrototypeOf(HlsHandler.prototype), 'dispose', this).call(this);
+ }
+ }]);
+ return HlsHandler;
+}(Component$1);
+
+/**
+ * The Source Handler object, which informs video.js what additional
+ * MIME types are supported and sets up playback. It is registered
+ * automatically to the appropriate tech based on the capabilities of
+ * the browser it is running in. It is not necessary to use or modify
+ * this object in normal usage.
+ */
+
+var HlsSourceHandler = {
+ name: 'videojs-http-streaming',
+ VERSION: version$1,
+ canHandleSource: function canHandleSource(srcObj) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ return HlsSourceHandler.canPlayType(srcObj.type, localOptions);
+ },
+ handleSource: function handleSource(source, tech) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ tech.hls = new HlsHandler(source, tech, localOptions);
+ tech.hls.xhr = xhrFactory();
+
+ tech.hls.src(source.src, source.type);
+ return tech.hls;
+ },
+ canPlayType: function canPlayType(type) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var _videojs$mergeOptions = videojs$1.mergeOptions(videojs$1.options, options),
+ overrideNative = _videojs$mergeOptions.hls.overrideNative;
+
+ var supportedType = simpleTypeFromSourceType(type);
+ var canUseMsePlayback = supportedType && (!Hls$1.supportsTypeNatively(supportedType) || overrideNative);
+
+ return canUseMsePlayback ? 'maybe' : '';
+ }
+};
+
+if (typeof videojs$1.MediaSource === 'undefined' || typeof videojs$1.URL === 'undefined') {
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+}
+
+// register source handlers with the appropriate techs
+if (MediaSource.supportsNativeMediaSources()) {
+ videojs$1.getTech('Html5').registerSourceHandler(HlsSourceHandler, 0);
+}
+
+videojs$1.HlsHandler = HlsHandler;
+videojs$1.HlsSourceHandler = HlsSourceHandler;
+videojs$1.Hls = Hls$1;
+if (!videojs$1.use) {
+ videojs$1.registerComponent('Hls', Hls$1);
+}
+videojs$1.options.hls = videojs$1.options.hls || {};
+
+if (videojs$1.registerPlugin) {
+ videojs$1.registerPlugin('reloadSourceOnError', reloadSourceOnError);
+} else {
+ videojs$1.plugin('reloadSourceOnError', reloadSourceOnError);
+}
+
+module.exports = videojs$1;
diff --git a/assets/netcut/lib/videojs/video.es.js b/assets/netcut/lib/videojs/video.es.js
new file mode 100644
index 0000000..7c44568
--- /dev/null
+++ b/assets/netcut/lib/videojs/video.es.js
@@ -0,0 +1,43021 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+import window$1 from 'global/window';
+import document from 'global/document';
+import tsml from 'tsml';
+import xhr from 'xhr';
+import vtt from 'videojs-vtt.js';
+import safeParseTuple from 'safe-json-parse/tuple';
+import URLToolkit from 'url-toolkit';
+import { Parser } from 'm3u8-parser';
+import { parse, parseUTCTiming } from 'mpd-parser';
+import mp4probe from 'mux.js/lib/mp4/probe';
+import { CaptionParser } from 'mux.js/lib/mp4';
+import tsInspector from 'mux.js/lib/tools/ts-inspector.js';
+import { Decrypter, AsyncStream, decrypt } from 'aes-decrypter';
+
+var version = "7.2.4";
+
+/**
+ * @file log.js
+ * @module log
+ */
+
+var log = void 0;
+
+// This is the private tracking variable for logging level.
+var level = 'info';
+
+// This is the private tracking variable for the logging history.
+var history = [];
+
+/**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+var logByType = function logByType(type, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp('^(' + lvl + ')$');
+
+ if (type !== 'log') {
+
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ }
+
+ // Add a clone of the args at this point to history.
+ if (history) {
+ history.push([].concat(args));
+ }
+
+ // Add console prefix after adding to history.
+ args.unshift('VIDEOJS:');
+
+ // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+ if (!window$1.console) {
+ return;
+ }
+
+ // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+ var fn = window$1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window$1.console.info || window$1.console.log;
+ }
+
+ // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window$1.console, args);
+};
+
+/**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * @class
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+log = function log() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', args);
+};
+
+/**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+};
+
+/**
+ * Get or set the current logging level. If a string matching a key from
+ * {@link log.levels} is provided, acts as a setter. Regardless of argument,
+ * returns the current logging level.
+ *
+ * @param {string} [lvl]
+ * Pass to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error('"' + lvl + '" in not a valid log level');
+ }
+ level = lvl;
+ }
+ return level;
+};
+
+/**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+log.history = function () {
+ return history ? [].concat(history) : [];
+};
+
+/**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+};
+
+/**
+ * Disable history tracking if it is currently enabled.
+ */
+log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+};
+
+/**
+ * Enable history tracking if it is currently disabled.
+ */
+log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+};
+
+/**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+log.error = function () {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', args);
+};
+
+/**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+log.warn = function () {
+ for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', args);
+};
+
+/**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+log.debug = function () {
+ for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', args);
+};
+
+var log$1 = log;
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+} : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+};
+
+var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+};
+
+var inherits = function (subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+var possibleConstructorReturn = function (self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+};
+
+var taggedTemplateLiteralLoose = function (strings, raw) {
+ strings.raw = raw;
+ return strings;
+};
+
+/**
+ * @file obj.js
+ * @module obj
+ */
+
+/**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+/**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+var toString = Object.prototype.toString;
+
+/**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+};
+
+/**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+}
+
+/**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+function reduce(object, fn) {
+ var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+}
+
+/**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+function assign(target) {
+ for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+
+ return target;
+}
+
+/**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+function isObject(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';
+}
+
+/**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+}
+
+/**
+ * @file computed-style.js
+ * @module computed-style
+ */
+
+/**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to
+ * make sure that the player doesn't break in these cases.
+ *
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ *
+ * @static
+ * @const
+ */
+function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window$1.getComputedStyle === 'function') {
+ var cs = window$1.getComputedStyle(el);
+
+ return cs ? cs[prop] : '';
+ }
+
+ return '';
+}
+
+var _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);
+
+/**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * - True if the string is non-blank
+ * - False otherwise
+ *
+ */
+function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+}
+
+/**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ *
+ */
+function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+}
+
+/**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+}
+
+/**
+ * Whether the current DOM interface appears to be real.
+ *
+ * @return {Boolean}
+ */
+function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document === window$1.document;
+}
+
+/**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The thing to check
+ *
+ * @return {boolean}
+ * - True if it is a DOM element
+ * - False otherwise
+ */
+function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+}
+
+/**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ *
+ */
+function isInFrame() {
+
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window$1.parent !== window$1.self;
+ } catch (x) {
+ return true;
+ }
+}
+
+/**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document[method](null);
+ }
+ if (isNonBlankString(context)) {
+ context = document.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document;
+
+ return ctx[method] && ctx[method](selector);
+ };
+}
+
+/**
+ * Creates an element and applies properties.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {String|Element|TextNode|Array|Function} [content]
+ * Contents for the element (see: {@link dom:normalizeContent})
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+function createEl() {
+ var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var content = arguments[3];
+
+ var el = document.createElement(tagName);
+
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName];
+
+ // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log$1.warn(tsml(_templateObject, propName, val));
+ el.setAttribute(propName, val);
+
+ // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+}
+
+/**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+ return el;
+}
+
+/**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+}
+
+/**
+ * Check if an element has a CSS class
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * - True if the element had the class
+ * - False otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+ return classRegExp(classToCheck).test(element.className);
+}
+
+/**
+ * Add a CSS class name to an element
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The dom element with the added class name.
+ */
+function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd);
+
+ // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+}
+
+/**
+ * Remove a CSS class name from an element
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The dom element with class name removed.
+ */
+function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+}
+
+/**
+ * The callback definition for toggleElClass.
+ *
+ * @callback Dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * - If true the `classToToggle` will get added to `element`.
+ * - If false the `classToToggle` will get removed from `element`.
+ * - If undefined this callback will be ignored
+ */
+
+/**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled
+ *
+ * @param {boolean|PredicateCallback} [predicate]
+ * See the return value for {@link Dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+function toggleClass(element, classToToggle, predicate) {
+
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ }
+
+ // If the necessary class operation matches the current state of the
+ // element, no action is required.
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+}
+
+/**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+}
+
+/**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element.
+ */
+function getAttributes(tag) {
+ var obj = {};
+
+ // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value;
+
+ // check for known booleans
+ // the matching element property will return a value for typeof
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+}
+
+/**
+ * Get the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to get the value of
+ *
+ * @return {string}
+ * value of the attribute
+ */
+function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+}
+
+/**
+ * Set the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to set
+ *
+ * @param {string} value
+ * Value to set the attribute to
+ */
+function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+}
+
+/**
+ * Remove an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to remove
+ */
+function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+}
+
+/**
+ * Attempt to block the ability to select text while dragging controls
+ */
+function blockTextSelection() {
+ document.body.focus();
+ document.onselectstart = function () {
+ return false;
+ };
+}
+
+/**
+ * Turn off text selection blocking
+ */
+function unblockTextSelection() {
+ document.onselectstart = function () {
+ return true;
+ };
+}
+
+/**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain
+ */
+function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+}
+
+/**
+ * The postion of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left
+ *
+ * @property {number} top
+ * Pixels on top
+ */
+
+/**
+ * Offset Left.
+ * getBoundingClientRect technique from
+ * John Resig
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+function findPosition(el) {
+ var box = void 0;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document.documentElement;
+ var body = document.body;
+
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window$1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window$1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop;
+
+ // Android sometimes returns slightly off decimal values, so need to round
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+}
+
+/**
+ * x and y coordinates for a dom element or mouse pointer
+ *
+ * @typedef {Object} Dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+/**
+ * Get pointer position in element
+ * Returns an object with x and y coordinates.
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {Dom~Coordinates}
+ * A Coordinates object corresponding to the mouse position.
+ *
+ */
+function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+
+ return position;
+}
+
+/**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * - True if it is a text node
+ * - False otherwise
+ */
+function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+}
+
+/**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+ return el;
+}
+
+/**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but protects
+ * from falling into the trap of simply writing to `innerHTML`, which is
+ * an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * - String: Normalized into a text node.
+ * - Element/TextNode: Passed through.
+ * - Array: A one-dimensional array of strings, elements, nodes, or functions
+ * (which return single strings, elements, or nodes).
+ * - Function: If the sole argument, is expected to produce a string, element,
+ * node, or array as defined above.
+ *
+ * @return {Array}
+ * All of the content that was passed in normalized.
+ */
+function normalizeContent(content) {
+
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ }
+
+ // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+}
+
+/**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+}
+
+/**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ *
+ */
+function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+}
+
+/**
+ * Check if event was a single left click
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {boolean}
+ * - True if a left click
+ * - False if not a left click
+ */
+function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+var $ = createQuerier('querySelector');
+
+/**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none were found.
+ *
+ */
+var $$ = createQuerier('querySelectorAll');
+
+var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+});
+
+/**
+ * @file guid.js
+ * @module guid
+ */
+
+/**
+ * Unique ID for an element or function
+ * @type {Number}
+ */
+var _guid = 1;
+
+/**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+function newGUID() {
+ return _guid++;
+}
+
+/**
+ * @file dom-data.js
+ * @module dom-data
+ */
+
+/**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+var elData = {};
+
+/*
+ * Unique attribute name to store an element's guid in
+ *
+ * @type {String}
+ * @constant
+ * @private
+ */
+var elIdAttr = 'vdata' + new Date().getTime();
+
+/**
+ * Returns the cache object where data for an element is stored
+ *
+ * @param {Element} el
+ * Element to store data for.
+ *
+ * @return {Object}
+ * The cache object for that el that was passed in.
+ */
+function getData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ id = el[elIdAttr] = newGUID();
+ }
+
+ if (!elData[id]) {
+ elData[id] = {};
+ }
+
+ return elData[id];
+}
+
+/**
+ * Returns whether or not an element has cached data
+ *
+ * @param {Element} el
+ * Check if this element has cached data.
+ *
+ * @return {boolean}
+ * - True if the DOM element has cached data.
+ * - False otherwise.
+ */
+function hasData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return false;
+ }
+
+ return !!Object.getOwnPropertyNames(elData[id]).length;
+}
+
+/**
+ * Delete data for the element from the cache and the guid attr from getElementById
+ *
+ * @param {Element} el
+ * Remove cached data for this element.
+ */
+function removeData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return;
+ }
+
+ // Remove all stored data
+ delete elData[id];
+
+ // Remove the elIdAttr property from the DOM node
+ try {
+ delete el[elIdAttr];
+ } catch (e) {
+ if (el.removeAttribute) {
+ el.removeAttribute(elIdAttr);
+ } else {
+ // IE doesn't appear to support removeAttribute on the document element
+ el[elIdAttr] = null;
+ }
+ }
+}
+
+/**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @module events
+ */
+
+/**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+function _cleanUpEvents(elem, type) {
+ var data = getData(elem);
+
+ // Remove the events of a particular type if there are none left
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type];
+ // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+
+ // Remove the meta-handler from the element
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ }
+
+ // Remove the events object if there are no types left
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ }
+
+ // Finally remove the element data if there is no data left
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ removeData(elem);
+ }
+}
+
+/**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+}
+
+/**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+function fixEvent(event) {
+
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ }
+
+ // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window$1.event;
+
+ event = {};
+ // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ }
+
+ // The event occurred on this element
+ if (!event.target) {
+ event.target = event.srcElement || document;
+ }
+
+ // Handle which other element the event is related to
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ }
+
+ // Stop the default browser action
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false;
+
+ // Stop the event from bubbling
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse;
+
+ // Stop the event from bubbling and executing other handlers
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse;
+
+ // Handle mouse position
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document.documentElement;
+ var body = document.body;
+
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ }
+
+ // Handle key presses
+ event.which = event.charCode || event.keyCode;
+
+ // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+ if (event.button !== null && event.button !== undefined) {
+
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ }
+
+ // Returns fixed-up instance
+ return event;
+}
+
+/**
+ * Whether passive event listeners are supported
+ */
+var _supportsPassive = false;
+
+(function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+
+ window$1.addEventListener('test', null, opts);
+ window$1.removeEventListener('test', null, opts);
+ } catch (e) {
+ // disregard
+ }
+})();
+
+/**
+ * Touch events Chrome expects to be passive
+ */
+var passiveEvents = ['touchstart', 'touchmove'];
+
+/**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ var data = getData(elem);
+
+ // We need a place to store all our handler data
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log$1.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = { passive: true };
+ }
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+}
+
+/**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!hasData(elem)) {
+ return;
+ }
+
+ var data = getData(elem);
+
+ // If no events exist, nothing to unbind
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ }
+
+ // Utility function
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+ _cleanUpEvents(el, t);
+ };
+
+ // Are we removing all bound events?
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+ return;
+ }
+
+ var handlers = data.handlers[type];
+
+ // If no handlers exist, nothing to unbind
+ if (!handlers) {
+ return;
+ }
+
+ // If no listener was provided, remove all listeners for type
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ }
+
+ // We're only removing a single handler
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+}
+
+/**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * - Returns the opposite of `defaultPrevented` if default was prevented
+ * - Otherwise returns undefined
+ */
+function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = hasData(elem) ? getData(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument;
+ // type = event.type || event,
+ // handler;
+
+ // If an event name was passed as a string, creates an event out of it
+ if (typeof event === 'string') {
+ event = { type: event, target: elem };
+ } else if (!event.target) {
+ event.target = elem;
+ }
+
+ // Normalizes the event properties.
+ event = fixEvent(event);
+
+ // If the passed element has a dispatcher, executes the established handlers.
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ }
+
+ // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash);
+
+ // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented) {
+ var targetData = getData(event.target);
+
+ // Checks if the target has a default action for this event.
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true;
+ // Executes the default action.
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ }
+ // Re-enables event dispatching.
+ targetData.disabled = false;
+ }
+ }
+
+ // Inform the triggerer if the default was prevented by returning false
+ return !event.defaultPrevented;
+}
+
+/**
+ * Trigger a listener only once for an event
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event Listener function
+ */
+function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ };
+
+ // copy the guid to the new function so it can removed using the original function's ID
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+}
+
+var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one
+});
+
+/**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+
+var _windowLoaded = false;
+var videojs = void 0;
+
+/**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+var autoSetup = function autoSetup() {
+
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs);
+
+ // Check if any media elements exist
+ if (mediaEls && mediaEls.length > 0) {
+
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i];
+
+ // Check if element exists, has getAttribute func.
+ if (mediaEl && mediaEl.getAttribute) {
+
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup');
+
+ // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ }
+
+ // If getAttribute isn't defined, we need to wait for the DOM.
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ }
+
+ // No videos were found, so keep looping unless page is finished loading.
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+};
+
+/**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window$1.setTimeout(autoSetup, wait);
+}
+
+if (isReal() && document.readyState === 'complete') {
+ _windowLoaded = true;
+} else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * @listens load
+ */
+ one(window$1, 'load', function () {
+ _windowLoaded = true;
+ });
+}
+
+/**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+
+/**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+var createStyleElement = function createStyleElement(className) {
+ var style = document.createElement('style');
+
+ style.className = className;
+
+ return style;
+};
+
+/**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+};
+
+/**
+ * @file fn.js
+ * @module fn
+ */
+
+/**
+ * Bind (a.k.a proxy or Context). A simple method for changing the context of a function
+ * It also stores a unique id on the function so it can be easily removed from events.
+ *
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ // Create the new function that changes the context
+ var bound = function bound() {
+ return fn.apply(context, arguments);
+ };
+
+ // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+
+ return bound;
+};
+
+/**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {Number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+var throttle = function throttle(fn, wait) {
+ var last = Date.now();
+
+ var throttled = function throttled() {
+ var now = Date.now();
+
+ if (now - last >= wait) {
+ fn.apply(undefined, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+};
+
+/**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+var debounce = function debounce(func, wait, immediate) {
+ var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window$1;
+
+ var timeout = void 0;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+
+ /* eslint-disable consistent-this */
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+ debounced.cancel = cancel;
+
+ return debounced;
+};
+
+/**
+ * @file src/js/event-target.js
+ */
+
+/**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+var EventTarget = function EventTarget() {};
+
+/**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+/**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+/**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+EventTarget.prototype.allowedEvents_ = {};
+
+/**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ on(this, type, fn);
+ this.addEventListener = ael;
+};
+
+/**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+
+/**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+};
+
+/**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+
+/**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener alialing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ one(this, type, fn);
+ this.addEventListener = ael;
+};
+
+/**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event;
+
+ if (typeof event === 'string') {
+ event = { type: type };
+ }
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+};
+
+/**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+
+var EVENT_MAP = void 0;
+
+EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+
+ map.delete(type);
+ window$1.clearTimeout(oldTimeout);
+
+ var timeout = window$1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP.delete(_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+
+ map.set(type, timeout);
+};
+
+/**
+ * @file mixins/evented.js
+ * @module evented
+ */
+
+/**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+};
+
+/**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+var isValidEventType = function isValidEventType(type) {
+ return (
+ // The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+};
+
+/**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+};
+
+/**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+};
+
+/**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+};
+
+/**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+var normalizeListenArgs = function normalizeListenArgs(self, args) {
+
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target = void 0;
+ var type = void 0;
+ var listener = void 0;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_;
+
+ // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ listener = bind(self, listener);
+
+ return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };
+};
+
+/**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+};
+
+/**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+var EventedMixin = {
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on$$1() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener);
+
+ // If this object is listening to another evented object.
+ if (!isTargetingSelf) {
+
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ };
+
+ // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+ removeListenerOnDispose.guid = listener.guid;
+
+ // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ removeRemoverOnTargetDispose.guid = listener.guid;
+
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one$$1() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener;
+
+ // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener);
+
+ // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ _this2.off(target, type, wrapper);
+ listener.apply(null, largs);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$$1(targetOrType, typeOrListener, listener) {
+
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener);
+
+ // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener;
+
+ // Fail fast and in a meaningful way!
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ // Ensure there's at least a guid, even if the function hasn't been used
+ listener = bind(this, listener);
+
+ // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @returns {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+};
+
+/**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {String} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+function evented(target) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var eventBusKey = options.eventBusKey;
+
+ // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error('The eventBusKey "' + eventBusKey + '" does not refer to an element.');
+ }
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });
+ }
+
+ assign(target, EventedMixin);
+
+ // When any evented object is disposed, it removes all its listeners.
+ target.on('dispose', function () {
+ target.off();
+ window$1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+
+ return target;
+}
+
+/**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+
+/**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+var StatefulMixin = {
+
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @returns {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes = void 0;
+
+ each(stateUpdates, function (value, key) {
+
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ });
+
+ // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+ if (changes && isEvented(this)) {
+
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+};
+
+/**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @returns {Object}
+ * Returns the `target`.
+ */
+function stateful(target, defaultState) {
+ assign(target, StatefulMixin);
+
+ // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+ target.state = assign({}, target.state, defaultState);
+
+ // Auto-bind the `handleStateChanged` method of the target object if it exists.
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+}
+
+/**
+ * @file to-title-case.js
+ * @module to-title-case
+ */
+
+/**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.charAt(0).toUpperCase() + string.slice(1);
+}
+
+/**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+}
+
+/**
+ * @file merge-options.js
+ * @module merge-options
+ */
+
+/**
+ * Deep-merge one or more options objects, recursively merging **only** plain
+ * object properties.
+ *
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @returns {Object}
+ * A new object that is the merged result of all sources.
+ */
+function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+
+ return result;
+}
+
+/**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+
+/**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+var Component = function () {
+
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ classCallCheck(this, Component);
+
+
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ }
+
+ // Make a copy of prototype.options_ to protect against overriding defaults
+ this.options_ = mergeOptions({}, this.options_);
+
+ // Updated options with supplied options
+ options = this.options_ = mergeOptions(this.options_, options);
+
+ // Get ID from options or options element if one is supplied
+ this.id_ = options.id || options.el && options.el.id;
+
+ // If there was no ID from the options, generate one
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+
+ this.id_ = id + '_component_' + newGUID();
+ }
+
+ this.name_ = options.name || null;
+
+ // Create element if one wasn't provided in options
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ }
+
+ // if evented is anything except false, we want to mixin in evented
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, { eventBusKey: this.el_ ? 'el_' : null });
+ }
+ stateful(this, this.constructor.defaultState);
+
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+
+ // Add any child components in options
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready);
+ // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Component.prototype.dispose = function dispose() {
+
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({ type: 'dispose', bubbles: false });
+
+ // Dispose all children.
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ }
+
+ // Delete child references
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ removeData(this.el_);
+ this.el_ = null;
+ }
+
+ // remove reference to the player after disposing of the element
+ this.player_ = null;
+ };
+
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+
+
+ Component.prototype.player = function player() {
+ return this.player_;
+ };
+
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Component.prototype.options = function options(obj) {
+ log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');
+
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ };
+
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+
+
+ Component.prototype.el = function el() {
+ return this.el_;
+ };
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ };
+
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+
+
+ Component.prototype.localize = function localize(string, tokens) {
+ var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ };
+
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+
+
+ Component.prototype.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ };
+
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+
+
+ Component.prototype.id = function id() {
+ return this.id_;
+ };
+
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+
+
+ Component.prototype.name = function name() {
+ return this.name_;
+ };
+
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+
+
+ Component.prototype.children = function children() {
+ return this.children_;
+ };
+
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+
+
+ Component.prototype.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ };
+
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+
+
+ Component.prototype.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ return this.childNameIndex_[name];
+ };
+
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+
+
+ Component.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;
+
+ var component = void 0;
+ var componentName = void 0;
+
+ // If child is a string, create component with options
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+
+ var componentClassName = options.componentClass || componentName;
+
+ // Set name through options
+ options.name = componentName;
+
+ // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error('Component ' + componentClassName + ' does not exist');
+ }
+
+ // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options);
+
+ // child is a component instance
+ } else {
+ component = child;
+ }
+
+ this.children_.splice(index, 0, component);
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ }
+
+ // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ }
+
+ // Add the UI object's element to the container div (box)
+ // Having an element is not required
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+
+ this.contentEl().insertBefore(component.el(), refNode);
+ }
+
+ // Return so it can stored on parent object if desired.
+ return component;
+ };
+
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+
+
+ Component.prototype.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[component.name()] = null;
+
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ };
+
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+
+
+ Component.prototype.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts;
+
+ // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ }
+
+ // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+ if (opts === false) {
+ return;
+ }
+
+ // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+ if (opts === true) {
+ opts = {};
+ }
+
+ // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+ opts.playerOptions = _this.options_.playerOptions;
+
+ // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ };
+
+ // Allow for an array of children details to passed in the options
+ var workingChildren = void 0;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren
+ // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name = void 0;
+ var opts = void 0;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return { name: name, opts: opts };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ };
+
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+
+
+ Component.prototype.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ };
+
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+
+
+ Component.prototype.ready = function ready(fn) {
+ var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ };
+
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+
+
+ Component.prototype.triggerReady = function triggerReady() {
+ this.isReady_ = true;
+
+ // Ensure ready is triggered asynchronously
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_;
+
+ // Reset Ready Queue
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ }
+
+ // Allow for using event listeners also
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ready');
+ }, 1);
+ };
+
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$ = function $$$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ };
+
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$$ = function $$$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ };
+
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+
+
+ Component.prototype.hasClass = function hasClass$$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ };
+
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+
+
+ Component.prototype.addClass = function addClass$$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ };
+
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+
+
+ Component.prototype.removeClass = function removeClass$$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ };
+
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+
+
+ Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ };
+
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+
+
+ Component.prototype.show = function show() {
+ this.removeClass('vjs-hidden');
+ };
+
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+
+
+ Component.prototype.hide = function hide() {
+ this.addClass('vjs-hidden');
+ };
+
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ };
+
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ };
+
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+
+
+ Component.prototype.getAttribute = function getAttribute$$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+
+
+ Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ };
+
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+
+
+ Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ };
+
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ };
+
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+
+
+ Component.prototype.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ };
+
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+
+
+ Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ }
+
+ // Check if using css width/height (% or px) and adjust
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ }
+
+ // skipListeners allows us to avoid triggering the resize event when setting both width and height
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ }
+
+ // Not setting a value, so getting it
+ // Make sure element exists
+ if (!this.el_) {
+ return 0;
+ }
+
+ // Get dimension value from style
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ }
+
+ // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ };
+
+ /**
+ * Get the width or the height of the `Component` elements computed style. Uses
+ * `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+
+
+ Component.prototype.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ if (typeof window$1.getComputedStyle === 'function') {
+ var computedStyle = window$1.getComputedStyle(this.el_);
+
+ computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];
+ }
+
+ // remove 'px' from variable and parse as integer
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+ // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+ if (computedWidthOrHeight === 0) {
+ var rule = 'offset' + toTitleCase(widthOrHeight);
+
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ };
+
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains width and height values of the `Component`s
+ * computed style.
+ *
+ * @return {Component~DimensionObject}
+ * The dimensions of the components element
+ */
+
+
+ Component.prototype.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ };
+
+ /**
+ * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} width
+ * The width of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ };
+
+ /**
+ * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} height
+ * The height of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ };
+
+ /**
+ * Set the focus to this component
+ */
+
+
+ Component.prototype.focus = function focus() {
+ this.el_.focus();
+ };
+
+ /**
+ * Remove the focus from this component
+ */
+
+
+ Component.prototype.blur = function blur() {
+ this.el_.blur();
+ };
+
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+
+
+ Component.prototype.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null;
+
+ // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+ var tapMovementThreshold = 10;
+
+ // The maximum length a touch can be while still being considered a tap
+ var touchTimeThreshold = 200;
+
+ var couldBeTap = void 0;
+
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ };
+ // Record start time so we can detect a tap vs. "touch and hold"
+ touchStart = new Date().getTime();
+ // Reset couldBeTap tracking
+ couldBeTap = true;
+ }
+ });
+
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ };
+
+ // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap);
+
+ // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+ this.on('touchend', function (event) {
+ firstTouch = null;
+ // Proceed only if the touchmove/leave/cancel event didn't happen
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = new Date().getTime() - touchStart;
+
+ // Make sure the touch was less than the threshold to be considered a tap
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+ this.trigger('tap');
+ // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ };
+
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+
+
+ Component.prototype.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ }
+
+ // listener for reporting that the user is active
+ var report = bind(this.player(), this.player().reportUserActivity);
+
+ var touchHolding = void 0;
+
+ this.on('touchstart', function () {
+ report();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(touchHolding);
+ // report at the same interval as activityCheck
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report();
+ // stop the interval that maintains activity if the touch is holding
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ };
+
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+
+
+ Component.prototype.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId, disposeFn;
+
+ fn = bind(this, fn);
+
+ timeoutId = window$1.setTimeout(function () {
+ _this2.off('dispose', disposeFn);
+ fn();
+ }, timeout);
+
+ disposeFn = function disposeFn() {
+ return _this2.clearTimeout(timeoutId);
+ };
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.on('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+
+
+ Component.prototype.clearTimeout = function clearTimeout(timeoutId) {
+ window$1.clearTimeout(timeoutId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.off('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+
+
+ Component.prototype.setInterval = function setInterval(fn, interval) {
+ var _this3 = this;
+
+ fn = bind(this, fn);
+
+ var intervalId = window$1.setInterval(fn, interval);
+
+ var disposeFn = function disposeFn() {
+ return _this3.clearInterval(intervalId);
+ };
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.on('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+
+
+ Component.prototype.clearInterval = function clearInterval(intervalId) {
+ window$1.clearInterval(intervalId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.off('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+
+
+ Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this4 = this;
+
+ // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+ var id, disposeFn;
+
+ if (this.supportsRaf_) {
+ fn = bind(this, fn);
+
+ id = window$1.requestAnimationFrame(function () {
+ _this4.off('dispose', disposeFn);
+ fn();
+ });
+
+ disposeFn = function disposeFn() {
+ return _this4.cancelAnimationFrame(id);
+ };
+
+ disposeFn.guid = 'vjs-raf-' + id;
+ this.on('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.setTimeout(fn, 1000 / 60);
+ };
+
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+
+
+ Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ if (this.supportsRaf_) {
+ window$1.cancelAnimationFrame(id);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-raf-' + id;
+
+ this.off('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.clearTimeout(id);
+ };
+
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error('Illegal component name, "' + name + '"; must be a non-empty string.');
+ }
+
+ var Tech = Component.getComponent('Tech');
+
+ // We need to make sure this check is only done if Tech has been registered.
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason = void 0;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error('Illegal component, "' + name + '"; ' + reason + '.');
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players);
+
+ // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+
+ return ComponentToRegister;
+ };
+
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+
+
+ Component.getComponent = function getComponent(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Component.components_ && Component.components_[name]) {
+ return Component.components_[name];
+ }
+ };
+
+ return Component;
+}();
+
+/**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+Component.prototype.supportsRaf_ = typeof window$1.requestAnimationFrame === 'function' && typeof window$1.cancelAnimationFrame === 'function';
+
+Component.registerComponent('Component', Component);
+
+/**
+ * @file browser.js
+ * @module browser
+ */
+
+var USER_AGENT = window$1.navigator && window$1.navigator.userAgent || '';
+var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+
+/*
+ * Device is an iPhone
+ *
+ * @type {Boolean}
+ * @constant
+ * @private
+ */
+var IS_IPAD = /iPad/i.test(USER_AGENT);
+
+// The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+// to identify iPhones, we need to exclude iPads.
+// http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+var IS_IPOD = /iPod/i.test(USER_AGENT);
+var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+ return null;
+}();
+
+var IS_ANDROID = /Android/i.test(USER_AGENT);
+var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+ return null;
+}();
+
+var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+
+var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+var IS_EDGE = /Edge/i.test(USER_AGENT);
+var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+ return null;
+}();
+var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+}();
+
+var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+var TOUCH_ENABLED = isReal() && ('ontouchstart' in window$1 || window$1.navigator.maxTouchPoints || window$1.DocumentTouch && window$1.document instanceof window$1.DocumentTouch);
+
+var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ TOUCH_ENABLED: TOUCH_ENABLED
+});
+
+/**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+/**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @function time-ranges:indexFunction
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @depricated index must be set to a value, in the future this will throw an error.
+ */
+
+/**
+ * An object that contains ranges of time for various reasons.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this Object
+ *
+ * @property {time-ranges:indexFunction} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {time-ranges:indexFunction} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+/**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error('Failed to execute \'' + fnName + '\' on \'TimeRanges\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');
+ }
+}
+
+/**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ *
+ * @depricated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+}
+
+/**
+ * Create a time range object given ranges of time.
+ *
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+}
+
+/**
+ * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.
+ *
+ * @param {number|Array} start
+ * The start of a single range or an array of ranges
+ *
+ * @param {number} end
+ * The end of a single range.
+ *
+ * @private
+ */
+function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+ return createTimeRangesObj([[start, end]]);
+}
+
+/**
+ * @file buffer.js
+ * @module buffer
+ */
+
+/**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start = void 0;
+ var end = void 0;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i);
+
+ // buffered end can be bigger than duration by a very small fraction
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+}
+
+/**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+
+/**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+var FullscreenApi = {};
+
+// browser API methods
+var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
+// WebKit
+['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+// Old WebKit (Safari 5.1)
+['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+// Mozilla
+['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
+// Microsoft
+['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];
+
+var specApi = apiMap[0];
+var browserApi = void 0;
+
+// determine the supported set of functions
+for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document) {
+ browserApi = apiMap[i];
+ break;
+ }
+}
+
+// map the browser API names to the spec API names
+if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+}
+
+/**
+ * @file media-error.js
+ */
+
+/**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+function MediaError(value) {
+
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+}
+
+/**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+MediaError.prototype.code = 0;
+
+/**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+MediaError.prototype.message = '';
+
+/**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+MediaError.prototype.status = null;
+
+/**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_CUSTOM
+ * @property {string} 2 - MEDIA_ERR_ABORTED
+ * @property {string} 3 - MEDIA_ERR_NETWORK
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+/**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+};
+
+// Add types as properties on MediaError
+// e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum;
+ // values should be accessible on both the class and instance
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+}
+
+/**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {Boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+}
+
+/**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+}
+
+/**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+/**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+
+ return ret;
+};
+
+/**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+var textTracksToJson = function textTracksToJson(tech) {
+
+ var trackEls = tech.$$('track');
+
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+ return json;
+ });
+
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+};
+
+/**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+
+ return tech.textTracks();
+};
+
+var textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };
+
+/**
+ * @file modal-dialog.js
+ */
+
+var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+var ESC = 27;
+
+/**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+var ModalDialog = function (_Component) {
+ inherits(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ classCallCheck(this, ModalDialog);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+ _this.content(_this.options_.content);
+
+ // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + '-content'
+ }, {
+ role: 'document'
+ });
+
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + '-description vjs-control-text',
+ id: _this.el().getAttribute('aria-describedby')
+ });
+
+ textContent(_this.descEl_, _this.description());
+ _this.el_.appendChild(_this.descEl_);
+ _this.el_.appendChild(_this.contentEl_);
+ return _this;
+ }
+
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ ModalDialog.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + '_description',
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ ModalDialog.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles `keydown` events on the document, looking for ESC, which closes
+ * the modal.
+ *
+ * @param {EventTarget~Event} e
+ * The keypress that triggered this event.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
+ if (e.which === ESC && this.closeable()) {
+ this.close();
+ }
+ };
+
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+
+
+ ModalDialog.prototype.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ };
+
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+
+
+ ModalDialog.prototype.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.');
+
+ // Append a universal closeability message if the modal is closeable.
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ };
+
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+
+
+ ModalDialog.prototype.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalopen');
+ this.opened_ = true;
+
+ // Fill content if the modal has never opened before and
+ // never been filled.
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ }
+
+ // If the player was playing, pause it and take note of its previously
+ // playing state.
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ if (this.closeable()) {
+ this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ // Hide controls and note if they were enabled.
+ this.hadControls_ = player.controls();
+ player.controls(false);
+
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ };
+
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+
+
+ ModalDialog.prototype.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+ return this.opened_;
+ };
+
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+
+
+ ModalDialog.prototype.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ if (this.closeable()) {
+ this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ };
+
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+
+
+ ModalDialog.prototype.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton');
+
+ // If this is being made closeable and has no close button, add one.
+ if (closeable && !close) {
+
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ }
+
+ // If this is being made uncloseable and has a close button, remove it.
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+ return this.closeable_;
+ };
+
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+
+
+ ModalDialog.prototype.fill = function fill() {
+ this.fillWith(this.content());
+ };
+
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+
+
+ ModalDialog.prototype.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true;
+
+ // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalfill');
+
+ // Re-inject the re-filled content element.
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ }
+
+ // make sure that the close button is last in the dialog DOM
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ };
+
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+
+
+ ModalDialog.prototype.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalempty');
+ };
+
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+
+
+ ModalDialog.prototype.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+ return this.content_;
+ };
+
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document.activeElement;
+ var playerEl = this.player_.el_;
+
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+
+ this.focus();
+
+ this.on(document, 'keydown', this.handleKeyDown);
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+
+ this.off(document, 'keydown', this.handleKeyDown);
+ };
+
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {
+ // exit early if it isn't a tab key
+ if (event.which !== 9) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex = void 0;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ };
+
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window$1.HTMLAnchorElement || child instanceof window$1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window$1.HTMLInputElement || child instanceof window$1.HTMLSelectElement || child instanceof window$1.HTMLTextAreaElement || child instanceof window$1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window$1.HTMLIFrameElement || child instanceof window$1.HTMLObjectElement || child instanceof window$1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+}(Component);
+
+/**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+};
+
+Component.registerComponent('ModalDialog', ModalDialog);
+
+/**
+ * @file track-list.js
+ */
+
+/**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+var TrackList = function (_EventTarget) {
+ inherits(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, TrackList);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ _this.tracks_ = [];
+
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(_this, 'length', {
+ get: function get$$1() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+ return _this;
+ }
+
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ TrackList.prototype.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.tracks_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate tracks
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+ this.trigger({
+ track: track,
+ type: 'addtrack'
+ });
+ }
+ };
+
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+
+
+ TrackList.prototype.removeTrack = function removeTrack(rtrack) {
+ var track = void 0;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+ this.trigger({
+ track: track,
+ type: 'removetrack'
+ });
+ };
+
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {String} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+
+
+ TrackList.prototype.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+}(EventTarget);
+
+/**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+};
+
+// emulate attribute EventHandler support to allow for feature detection
+for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+}
+
+/**
+ * @file audio-track-list.js
+ */
+
+/**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another audio track is enabled, disable it
+ list[i].enabled = false;
+ }
+};
+
+/**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+var AudioTrackList = function (_TrackList) {
+ inherits(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, AudioTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+ return _this;
+ }
+
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ AudioTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('enabledchange', function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return AudioTrackList;
+}(TrackList);
+
+/**
+ * @file video-track-list.js
+ */
+
+/**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another video track is enabled, disable it
+ list[i].selected = false;
+ }
+};
+
+/**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+var VideoTrackList = function (_TrackList) {
+ inherits(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, VideoTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+ Object.defineProperty(_this, 'selectedIndex', {
+ get: function get$$1() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+ return -1;
+ },
+ set: function set$$1() {}
+ });
+ return _this;
+ }
+
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ VideoTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('selectedchange', function () {
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return VideoTrackList;
+}(TrackList);
+
+/**
+ * @file text-track-list.js
+ */
+
+/**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+var TextTrackList = function (_TrackList) {
+ inherits(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ classCallCheck(this, TextTrackList);
+ return possibleConstructorReturn(this, _TrackList.apply(this, arguments));
+ }
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ TextTrackList.prototype.addTrack = function addTrack(track) {
+ _TrackList.prototype.addTrack.call(this, track);
+
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+ track.addEventListener('modechange', bind(this, function () {
+ this.queueTrigger('change');
+ }));
+
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', bind(this, function () {
+ this.trigger('selectedlanguagechange');
+ }));
+ }
+ };
+
+ return TextTrackList;
+}(TrackList);
+
+/**
+ * @file html-track-element-list.js
+ */
+
+/**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+var HtmlTrackElementList = function () {
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList() {
+ var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, HtmlTrackElementList);
+
+ this.trackElements_ = [];
+
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.trackElements_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate elements
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ };
+
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_ = void 0;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+
+ break;
+ }
+ }
+
+ return trackElement_;
+ };
+
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ this.trackElements_.splice(i, 1);
+
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+}();
+
+/**
+ * @file text-track-cue-list.js
+ */
+
+/**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+/**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+var TextTrackCueList = function () {
+
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ classCallCheck(this, TextTrackCueList);
+
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.length_;
+ }
+ });
+ }
+
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ TextTrackCueList.prototype.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get$$1() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ };
+
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+
+
+ TextTrackCueList.prototype.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+}();
+
+/**
+ * @file track-kinds.js
+ */
+
+/**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+};
+
+/**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+};
+
+/**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+};
+
+/**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+};
+
+/**
+ * @file track.js
+ */
+
+/**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+var Track = function (_EventTarget) {
+ inherits(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, Track);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_this, key, {
+ get: function get$$1() {
+ return trackProps[key];
+ },
+ set: function set$$1() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+ return _this;
+ }
+
+ return Track;
+}(EventTarget);
+
+/**
+ * @file url.js
+ * @module url
+ */
+
+/**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+/**
+ * Resolve and parse the elements of a URL.
+ *
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+ // add the url to an anchor and let the browser parse the URL
+ var a = document.createElement('a');
+
+ a.href = url;
+
+ // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div = void 0;
+
+ if (addToBody) {
+ div = document.createElement('div');
+ div.innerHTML = '<a href="' + url + '"></a>';
+ a = div.firstChild;
+ // prevent the div from affecting layout
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document.body.appendChild(div);
+ }
+
+ // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ }
+
+ // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window$1.location.protocol;
+ }
+
+ if (addToBody) {
+ document.body.removeChild(div);
+ }
+
+ return details;
+};
+
+/**
+ * Get absolute version of relative URL. Used to tell flash correct URL.
+ *
+ *
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document.createElement('div');
+
+ div.innerHTML = '<a href="' + url + '">x</a>';
+ url = div.firstChild.href;
+ }
+
+ return url;
+};
+
+/**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @returns {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+};
+
+/**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window$1.location;
+ var urlInfo = parseUrl(url);
+
+ // IE8 protocol relative urls will return ':' for protocol
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
+
+ // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+
+ return crossOrigin;
+};
+
+var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+});
+
+/**
+ * @file text-track.js
+ */
+
+/**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+var parseCues = function parseCues(srcContent, track) {
+ var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, window$1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (window$1.console && window$1.console.groupCollapsed) {
+ window$1.console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return log$1.error(error);
+ });
+ if (window$1.console && window$1.console.groupEnd) {
+ window$1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+};
+
+/**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ xhr(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log$1.error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof window$1.WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ log$1.error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+};
+
+/**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+var TextTrack = function (_Track) {
+ inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings.default;
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ _this.tech_ = settings.tech;
+
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_this, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_this, {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ default: {
+ get: function get$$1() {
+ return default_;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get$$1() {
+ return mode;
+ },
+ set: function set$$1(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+
+
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set$$1() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _this);
+ } else {
+ _this.loaded_ = true;
+ }
+ return _this;
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window$1.vttjs && !(originalCue instanceof window$1.vttjs.VTTCue)) {
+ cue = new window$1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+}(Track);
+
+/**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+};
+
+/**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+var AudioTrack = function (_Track) {
+ inherits(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, AudioTrack);
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var enabled = false;
+
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'enabled', {
+ get: function get$$1() {
+ return enabled;
+ },
+ set: function set$$1(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+ enabled = newEnabled;
+
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enabledchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+}(Track);
+
+/**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+var VideoTrack = function (_Track) {
+ inherits(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, VideoTrack);
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var selected = false;
+
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'selected', {
+ get: function get$$1() {
+ return selected;
+ },
+ set: function set$$1(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+ selected = newSelected;
+
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('selectedchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+ return _this;
+ }
+
+ return VideoTrack;
+}(Track);
+
+/**
+ * @file html-track-element.js
+ */
+
+/**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+var NONE = 0;
+var LOADING = 1;
+var LOADED = 2;
+var ERROR = 3;
+
+/**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+var HTMLTrackElement = function (_EventTarget) {
+ inherits(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, HTMLTrackElement);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var readyState = void 0;
+
+ var track = new TextTrack(options);
+
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this.default = track.default;
+
+ Object.defineProperties(_this, {
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get$$1() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get$$1() {
+ return track;
+ }
+ }
+ });
+
+ readyState = NONE;
+
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _this
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+}(EventTarget);
+
+HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+};
+
+HTMLTrackElement.NONE = NONE;
+HTMLTrackElement.LOADING = LOADING;
+HTMLTrackElement.LOADED = LOADED;
+HTMLTrackElement.ERROR = ERROR;
+
+/*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+};
+
+Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + 'Tracks';
+ NORMAL[type].privateName = type + 'Tracks_';
+});
+
+var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+};
+
+var ALL = mergeOptions(NORMAL, REMOTE);
+
+REMOTE.names = Object.keys(REMOTE);
+NORMAL.names = Object.keys(NORMAL);
+ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+/**
+ * @file tech.js
+ */
+
+/**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+/**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new ALL.text.TrackClass(options);
+
+ tracks.addTrack(track);
+
+ return track;
+}
+
+/**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+var Tech = function (_Component) {
+ inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+ classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ });
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ Tech.prototype.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ };
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this3[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+ list.removeTrack(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+ return createTimeRanges();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + 'trackchange');
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window$1.WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (document.body.contains(this.el())) {
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = document.createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ window$1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var _this7 = this;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.playsinline = function playsinline() {};
+
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPlaysinline = function setPlaysinline() {};
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks() {};
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+
+ Tech.techs_[name] = tech;
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (window$1 && window$1.videojs && window$1.videojs[name]) {
+ log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return window$1.videojs[name];
+ }
+ };
+
+ return Tech;
+}(Component);
+
+/**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+/**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+/**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+/**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+/**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+});
+
+/**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+/**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+/**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+/**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresVolumeControl = true;
+
+/**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+Tech.prototype.featuresMuteControl = true;
+
+/**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresFullscreenResize = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresPlaybackRate = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresProgressEvents = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresSourceset = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresTimeupdateEvents = false;
+
+/**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+Tech.prototype.featuresNativeTextTracks = false;
+
+/**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'seeking', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log$1.error('No source handler found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+};
+
+// The base Tech class needs to be registered as a Component. It is the only
+// Tech that can be registered as a Component.
+Component.registerComponent('Tech', Tech);
+Tech.registerTech('Tech', Tech);
+
+/**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+Tech.defaultTechOrder_ = [];
+
+var middlewares = {};
+var middlewareInstances = {};
+
+var TERMINATOR = {};
+
+function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+}
+
+function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+}
+
+function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+}
+
+/**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ */
+function get$1(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+}
+
+/**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ */
+function set$1(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+}
+
+/**
+ * Takes the argument given to the player and calls the `call` version of the method
+ * on each middleware from left to right.
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ */
+function mediate(middleware, tech, method) {
+ var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR;
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+
+ executeRight(middleware, method, returnValue, terminated);
+
+ return returnValue;
+}
+
+var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1
+};
+
+var allowedSetters = {
+ setCurrentTime: 1
+};
+
+var allowedMediators = {
+ play: 1,
+ pause: 1
+};
+
+function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+}
+
+function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+}
+
+function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+}
+
+/**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ */
+function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+}
+
+function setSourceHelper() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
+ var next = arguments[2];
+ var player = arguments[3];
+ var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
+ var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+ var mwFactory = middleware[0],
+ mwrest = middleware.slice(1);
+
+ // if mwFactory is a string, then we're at a fork in the road
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+ // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory);
+
+ // if setSource isn't present, implicitly select this middleware
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ // we've succeeded, now we need to go deeper
+ acc.push(mw);
+
+ // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+}
+
+/**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL'
+};
+
+/**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+var getMimetype = function getMimetype() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+
+ return mimetype || '';
+};
+
+/**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ }
+
+ // 1. check for the type in the `source` cache
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ }
+
+ // 2. see if we have this source in our `currentSources` cache
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ }
+
+ // 3. look for the src url in source elements and use the type there
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ }
+
+ // 4. finally fallback to our list of mime types based on src url extension
+ return getMimetype(src);
+};
+
+/**
+ * @module filter-source
+ */
+
+/**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({ src: src })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+};
+
+/**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+function fixSource(src) {
+ var mimetype = getMimetype(src.src);
+
+ if (!src.type && mimetype) {
+ src.type = mimetype;
+ }
+
+ return src;
+}
+
+/**
+ * @file loader.js
+ */
+
+/**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+var MediaLoader = function (_Component) {
+ inherits(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ classCallCheck(this, MediaLoader);
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({ createEl: false }, options);
+
+ // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the browser supports this technology
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+ return _this;
+ }
+
+ return MediaLoader;
+}(Component);
+
+Component.registerComponent('MediaLoader', MediaLoader);
+
+/**
+ * @file clickable-component.js
+ */
+
+/**
+ * Clickable Component which is clickable or keyboard actionable,
+ * but is not a native HTML button.
+ *
+ * @extends Component
+ */
+
+var ClickableComponent = function (_Component) {
+ inherits(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ classCallCheck(this, ClickableComponent);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.emitTapEvents();
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createEl = function createEl$$1() {
+ var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');
+ }
+
+ // Add ARIA attributes for clickable element which is not a native HTML button
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ ClickableComponent.prototype.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a control text element on this `Component`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+
+ return this.controlTextEl_;
+ };
+
+ /**
+ * Get or set the localize text to use for the controls on the `Component`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ ClickableComponent.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Enable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ }
+ };
+
+ /**
+ * Disable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ };
+
+ /**
+ * This gets called when a `ClickableComponent` gets:
+ * - Clicked (via the `click` event, listening starts in the constructor)
+ * - Tapped (via the `tap` event, listening starts in the constructor)
+ * - The following things happen in order:
+ * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the
+ * `ClickableComponent`.
+ * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using
+ * {@link ClickableComponent#handleKeyPress}.
+ * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses
+ * the space or enter key.
+ * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`
+ * event as a parameter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+
+
+ ClickableComponent.prototype.handleClick = function handleClick(event) {};
+
+ /**
+ * This gets called when a `ClickableComponent` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ ClickableComponent.prototype.handleFocus = function handleFocus(event) {
+ on(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when this ClickableComponent has focus and a key gets pressed down. By
+ * default it will call `this.handleClick` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.trigger('click');
+ } else if (_Component.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ /**
+ * Called when a `ClickableComponent` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ ClickableComponent.prototype.handleBlur = function handleBlur(event) {
+ off(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ return ClickableComponent;
+}(Component);
+
+Component.registerComponent('ClickableComponent', ClickableComponent);
+
+/**
+ * @file poster-image.js
+ */
+
+/**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+var PosterImage = function (_ClickableComponent) {
+ inherits(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ classCallCheck(this, PosterImage);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.update();
+ player.on('posterchange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+ _ClickableComponent.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ PosterImage.prototype.createEl = function createEl$$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+
+ return el;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+
+
+ PosterImage.prototype.update = function update(event) {
+ var url = this.player().poster();
+
+ this.setSrc(url);
+
+ // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.setSrc = function setSrc(url) {
+ var backgroundImage = '';
+
+ // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+ if (url) {
+ backgroundImage = 'url("' + url + '")';
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+
+
+ PosterImage.prototype.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+}(ClickableComponent);
+
+Component.registerComponent('PosterImage', PosterImage);
+
+/**
+ * @file text-track-display.js
+ */
+
+var darkGray = '#222';
+var lightGray = '#ccc';
+var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+};
+
+/**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+function constructColor(color, opacity) {
+ var hex = void 0;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+}
+
+/**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+}
+
+/**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+var TextTrackDisplay = function (_Component) {
+ inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ classCallCheck(this, TextTrackDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ var updateDisplayHandler = bind(_this, _this.updateDisplay);
+
+ player.on('loadstart', bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadstart', bind(_this, _this.preselectTrack));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+
+ window$1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window$1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+ var preferredTrack = void 0;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language === track.language) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track;
+ // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ }
+
+ // clear everything if offTextTrackMenuItem was clicked
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track.default) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ };
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof window$1.WebVTT === 'function') {
+ window$1.WebVTT.processCues(window$1, [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof window$1.WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var cues = [];
+
+ for (var _i = 0; _i < track.activeCues.length; _i++) {
+ cues.push(track.activeCues[_i]);
+ }
+
+ window$1.WebVTT.processCues(window$1, cues, this.el_);
+
+ if (!this.player_.textTrackSettings) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window$1.parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+}(Component);
+
+Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+/**
+ * @file loading-spinner.js
+ */
+
+/**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+var LoadingSpinner = function (_Component) {
+ inherits(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ classCallCheck(this, LoadingSpinner);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ LoadingSpinner.prototype.createEl = function createEl$$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+
+ return el;
+ };
+
+ return LoadingSpinner;
+}(Component);
+
+Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+/**
+ * @file button.js
+ */
+
+/**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+var Button = function (_ClickableComponent) {
+ inherits(Button, _ClickableComponent);
+
+ function Button() {
+ classCallCheck(this, Button);
+ return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ Button.prototype.createEl = function createEl(tag) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ tag = 'button';
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props);
+
+ // Add attributes for button element
+ attributes = assign({
+
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Button.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var className = this.constructor.name;
+
+ log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');
+
+ // Avoid the error message generated by ClickableComponent's addChild method
+ return Component.prototype.addChild.call(this, child, options);
+ };
+
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+
+
+ Button.prototype.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+ this.el_.removeAttribute('disabled');
+ };
+
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+
+
+ Button.prototype.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+ this.el_.setAttribute('disabled', 'disabled');
+ };
+
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+
+
+ Button.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.
+ if (event.which === 32 || event.which === 13) {
+ return;
+ }
+
+ // Pass keypress handling up for unsupported keys
+ _ClickableComponent.prototype.handleKeyPress.call(this, event);
+ };
+
+ return Button;
+}(ClickableComponent);
+
+Component.registerComponent('Button', Button);
+
+/**
+ * @file big-play-button.js
+ */
+
+/**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+var BigPlayButton = function (_Button) {
+ inherits(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ classCallCheck(this, BigPlayButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ };
+
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ BigPlayButton.prototype.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play();
+
+ // exit early if clicked via the mouse
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyPress.call(this, event);
+ };
+
+ BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+}(Button);
+
+/**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+BigPlayButton.prototype.controlText_ = 'Play Video';
+
+Component.registerComponent('BigPlayButton', BigPlayButton);
+
+/**
+ * @file close-button.js
+ */
+
+/**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+var CloseButton = function (_Button) {
+ inherits(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ classCallCheck(this, CloseButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CloseButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when this will be
+ * triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+
+
+ CloseButton.prototype.handleClick = function handleClick(event) {
+
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({ type: 'close', bubbles: false });
+ };
+
+ return CloseButton;
+}(Button);
+
+Component.registerComponent('CloseButton', CloseButton);
+
+/**
+ * @file play-toggle.js
+ */
+
+/**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+var PlayToggle = function (_Button) {
+ inherits(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ classCallCheck(this, PlayToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'play', _this.handlePlay);
+ _this.on(player, 'pause', _this.handlePause);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlayToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlayToggle.prototype.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+
+
+ PlayToggle.prototype.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ };
+
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+
+
+ PlayToggle.prototype.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+ // change the button text to "Pause"
+ this.controlText('Pause');
+ };
+
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+
+
+ PlayToggle.prototype.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ // change the button text to "Play"
+ this.controlText('Play');
+ };
+
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ PlayToggle.prototype.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended');
+ // change the button text to "Replay"
+ this.controlText('Replay');
+
+ // on the next seek remove the replay button
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+}(Button);
+
+/**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlayToggle.prototype.controlText_ = 'Play';
+
+Component.registerComponent('PlayToggle', PlayToggle);
+
+/**
+ * @file format-time.js
+ * @module format-time
+ */
+
+/**
+* Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)
+* will force a number of leading zeros to cover the length of the guide.
+*
+* @param {number} seconds
+* Number of seconds to be turned into a string
+*
+* @param {number} guide
+* Number (in seconds) to model the string after
+*
+* @return {string}
+* Time formatted as H:MM:SS or M:SS
+*/
+var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s;
+};
+
+var implementation = defaultImplementation;
+
+/**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime implementation.
+ * Will receive the current time in seconds and the guide (in seconds) as arguments.
+ */
+function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+}
+
+/**
+ * Resets formatTime to the default implementation.
+ */
+function resetFormatTime() {
+ implementation = defaultImplementation;
+}
+
+function formatTime (seconds) {
+ var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;
+
+ return implementation(seconds, guide);
+}
+
+/**
+ * @file time-display.js
+ */
+
+/**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+var TimeDisplay = function (_Component) {
+ inherits(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ classCallCheck(this, TimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TimeDisplay.prototype.createEl = function createEl$$1(plainName) {
+ var className = this.buildCSSClass();
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + ' vjs-time-control vjs-control',
+ innerHTML: '<span class="vjs-control-text">' + this.localize(this.labelText_) + '\xA0</span>'
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + '-display'
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off'
+ });
+
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ TimeDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ };
+
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ };
+
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ };
+
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ TimeDisplay.prototype.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+}(Component);
+
+/**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+TimeDisplay.prototype.labelText_ = 'Time';
+
+/**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+TimeDisplay.prototype.controlText_ = 'Time';
+
+Component.registerComponent('TimeDisplay', TimeDisplay);
+
+/**
+ * @file current-time-display.js
+ */
+
+/**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+var CurrentTimeDisplay = function (_TimeDisplay) {
+ inherits(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ classCallCheck(this, CurrentTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ };
+
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+
+ this.updateFormattedTime_(time);
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+}(TimeDisplay);
+
+/**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+/**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+
+Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+/**
+ * @file duration-display.js
+ */
+
+/**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+var DurationDisplay = function (_TimeDisplay) {
+ inherits(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ classCallCheck(this, DurationDisplay);
+
+ // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.updateContent);
+
+ // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ };
+
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+
+
+ DurationDisplay.prototype.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (duration && this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+}(TimeDisplay);
+
+/**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DurationDisplay.prototype.labelText_ = 'Duration';
+
+/**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+DurationDisplay.prototype.controlText_ = 'Duration';
+
+Component.registerComponent('DurationDisplay', DurationDisplay);
+
+/**
+ * @file time-divider.js
+ */
+
+/**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+var TimeDivider = function (_Component) {
+ inherits(TimeDivider, _Component);
+
+ function TimeDivider() {
+ classCallCheck(this, TimeDivider);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeDivider.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ });
+ };
+
+ return TimeDivider;
+}(Component);
+
+Component.registerComponent('TimeDivider', TimeDivider);
+
+/**
+ * @file remaining-time-display.js
+ */
+/**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+var RemainingTimeDisplay = function (_TimeDisplay) {
+ inherits(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ classCallCheck(this, RemainingTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ };
+
+ /**
+ * The remaining time display prefixes numbers with a "minus" character.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ // TODO: The "-" should be decorative, and not announced by a screen reader
+ return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);
+ };
+
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+
+
+ RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+}(TimeDisplay);
+
+/**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+/**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+
+Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+/**
+ * @file live-display.js
+ */
+
+// TODO - Future make it click to snap to live
+
+/**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+var LiveDisplay = function (_Component) {
+ inherits(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ classCallCheck(this, LiveDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.updateShowing();
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LiveDisplay.prototype.createEl = function createEl$$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: '<span class="vjs-control-text">' + this.localize('Stream Type') + '\xA0</span>' + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ LiveDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+
+
+ LiveDisplay.prototype.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+}(Component);
+
+Component.registerComponent('LiveDisplay', LiveDisplay);
+
+/**
+ * @file slider.js
+ */
+
+/**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+var Slider = function (_Component) {
+ inherits(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ classCallCheck(this, Slider);
+
+ // Set property names to bar to match with the child Slider class is looking for
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.bar = _this.getChild(_this.options_.barName);
+
+ // Set a horizontal or vertical class on the slider depending on the slider type
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ Slider.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+
+
+ Slider.prototype.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ this.on('click', this.handleClick);
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+
+
+ Slider.prototype.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+ var doc = this.bar.el_.ownerDocument;
+
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+ this.enabled_ = false;
+ };
+
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Slider.prototype.createEl = function createEl$$1(type) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+
+
+ Slider.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ }
+ // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+ blockTextSelection();
+
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('slideractive');
+
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+
+ this.handleMouseMove(event);
+ };
+
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ Slider.prototype.handleMouseMove = function handleMouseMove(event) {};
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+
+
+ Slider.prototype.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+
+ unblockTextSelection();
+
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('sliderinactive');
+
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+
+ this.update();
+ };
+
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @returns {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+
+
+ Slider.prototype.update = function update() {
+
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ }
+
+ // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+ var progress = this.getPercent();
+ var bar = this.bar;
+
+ // If there's no bar...
+ if (!bar) {
+ return;
+ }
+
+ // Protect against no duration and other division issues
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ }
+
+ // Convert to a percentage for setting
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style;
+
+ // Set the new bar width or height
+ if (this.vertical()) {
+ style.height = percentage;
+ } else {
+ style.width = percentage;
+ }
+
+ return progress;
+ };
+
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+
+
+ Slider.prototype.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+ return position.x;
+ };
+
+ /**
+ * Handle a `focus` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to run.
+ *
+ * @listens focus
+ */
+
+
+ Slider.prototype.handleFocus = function handleFocus() {
+ this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+
+
+ Slider.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepBack();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepForward();
+ }
+ };
+
+ /**
+ * Handle a `blur` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to run.
+ *
+ * @listens blur
+ */
+
+ Slider.prototype.handleBlur = function handleBlur() {
+ this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+
+
+ Slider.prototype.handleClick = function handleClick(event) {
+ event.stopImmediatePropagation();
+ event.preventDefault();
+ };
+
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+
+
+ Slider.prototype.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+}(Component);
+
+Component.registerComponent('Slider', Slider);
+
+/**
+ * @file load-progress-bar.js
+ */
+
+/**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+var LoadProgressBar = function (_Component) {
+ inherits(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ classCallCheck(this, LoadProgressBar);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.partEls_ = [];
+ _this.on(player, 'progress', _this.update);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LoadProgressBar.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Loaded') + '</span>: 0%</span>'
+ });
+ };
+
+ LoadProgressBar.prototype.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+
+
+ LoadProgressBar.prototype.update = function update(event) {
+ var buffered = this.player_.buffered();
+ var duration = this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+
+ // get the percent width of a time compared to the total end
+ var percentify = function percentify(time, end) {
+ // no NaN
+ var percent = time / end || 0;
+
+ return (percent >= 1 ? 1 : percent) * 100 + '%';
+ };
+
+ // update the width of the progress bar
+ this.el_.style.width = percentify(bufferedEnd, duration);
+
+ // add child elements to represent the individual buffered time ranges
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ }
+
+ // set the percent based on the width of the progress bar (bufferedEnd)
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ }
+
+ // remove unused buffered range elements
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+}(Component);
+
+Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+/**
+ * @file time-tooltip.js
+ */
+
+/**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+var TimeTooltip = function (_Component) {
+ inherits(TimeTooltip, _Component);
+
+ function TimeTooltip() {
+ classCallCheck(this, TimeTooltip);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeTooltip.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ });
+ };
+
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+ // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+ if (!playerRect || !tooltipRect) {
+ return;
+ }
+
+ // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+ // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+ // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+ var pullTooltipBy = tooltipRect.width / 2;
+
+ // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ }
+
+ // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = '-' + pullTooltipBy + 'px';
+ textContent(this.el_, content);
+ };
+
+ return TimeTooltip;
+}(Component);
+
+Component.registerComponent('TimeTooltip', TimeTooltip);
+
+/**
+ * @file play-progress-bar.js
+ */
+
+/**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+var PlayProgressBar = function (_Component) {
+ inherits(PlayProgressBar, _Component);
+
+ function PlayProgressBar() {
+ classCallCheck(this, PlayProgressBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ PlayProgressBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Progress') + '</span>: 0%</span>'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();
+
+ var content = formatTime(time, _this2.player_.duration());
+ var timeTooltip = _this2.getChild('timeTooltip');
+
+ if (timeTooltip) {
+ timeTooltip.update(seekBarRect, seekBarPoint, content);
+ }
+ });
+ };
+
+ return PlayProgressBar;
+}(Component);
+
+/**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+PlayProgressBar.prototype.options_ = {
+ children: []
+};
+
+// Time tooltips should not be added to a player on mobile devices
+if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+}
+
+Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+/**
+ * @file mouse-time-display.js
+ */
+
+/**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+var MouseTimeDisplay = function (_Component) {
+ inherits(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ classCallCheck(this, MouseTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.update = throttle(bind(_this, _this.update), 25);
+ return _this;
+ }
+
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ MouseTimeDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var duration = _this2.player_.duration();
+ var content = formatTime(seekBarPoint * duration, duration);
+
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';
+ _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);
+ });
+ };
+
+ return MouseTimeDisplay;
+}(Component);
+
+/**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+};
+
+Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+/**
+ * @file seek-bar.js
+ */
+
+// The number of seconds the `step*` functions move the timeline.
+var STEP_SECONDS = 5;
+
+// The interval at which the bar should update as it progresses.
+var UPDATE_REFRESH_INTERVAL = 30;
+
+/**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+var SeekBar = function (_Slider) {
+ inherits(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ classCallCheck(this, SeekBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.setEventHandlers_();
+ return _this;
+ }
+
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {
+ var _this2 = this;
+
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);
+
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+
+ // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+ this.updateInterval = null;
+
+ this.on(this.player_, ['playing'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+
+ _this2.updateInterval = _this2.setInterval(function () {
+ _this2.requestAnimationFrame(function () {
+ _this2.update();
+ });
+ }, UPDATE_REFRESH_INTERVAL);
+ });
+
+ this.on(this.player_, ['ended', 'pause', 'waiting'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+ });
+
+ this.on(this.player_, ['timeupdate', 'ended'], this.update);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ SeekBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ };
+
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.update_ = function update_(currentTime, percent) {
+ var duration = this.player_.duration();
+
+ // machine readable value of progress bar (percentage complete)
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+
+ // human readable value of progress bar (time complete)
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+
+ // Update the `PlayProgressBar`.
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ };
+
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @returns {number}
+ * The current percent at a number from 0-1
+ */
+
+
+ SeekBar.prototype.update = function update(event) {
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ };
+
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ };
+
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ SeekBar.prototype.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ };
+
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+
+
+ SeekBar.prototype.getPercent = function getPercent() {
+ var percent = this.getCurrentTime_() / this.player_.duration();
+
+ return percent >= 1 ? 1 : percent || 0;
+ };
+
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+
+
+ SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime = this.calculateDistance(event) * this.player_.duration();
+
+ // Don't let video end while scrubbing.
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+
+ // Set new time (tell player to seek to new time)
+ this.player_.currentTime(newTime);
+ };
+
+ SeekBar.prototype.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ SeekBar.prototype.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ };
+
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+
+
+ SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event);
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ if (event) {
+ event.stopPropagation();
+ }
+ this.player_.scrubbing(false);
+
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ };
+
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ };
+
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ };
+
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+
+
+ SeekBar.prototype.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down. By
+ * default it will call `this.handleAction` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.handleAction(event);
+ } else if (_Slider.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Slider.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ return SeekBar;
+}(Slider);
+
+/**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+};
+
+// MouseTimeDisplay tooltips should not be added to a player on mobile devices
+if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+}
+
+/**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+SeekBar.prototype.playerEvent = 'timeupdate';
+
+Component.registerComponent('SeekBar', SeekBar);
+
+/**
+ * @file progress-control.js
+ */
+
+/**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+var ProgressControl = function (_Component) {
+ inherits(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ classCallCheck(this, ProgressControl);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+ _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ ProgressControl.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ };
+
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+
+
+ ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+ // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ };
+
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ };
+
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ ProgressControl.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Disable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+
+ this.addClass('disabled');
+
+ this.enabled_ = false;
+ };
+
+ /**
+ * Enable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+}(Component);
+
+/**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+};
+
+Component.registerComponent('ProgressControl', ProgressControl);
+
+/**
+ * @file fullscreen-toggle.js
+ */
+
+/**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+var FullscreenToggle = function (_Button) {
+ inherits(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ classCallCheck(this, FullscreenToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document[FullscreenApi.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+
+
+ FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ };
+
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ FullscreenToggle.prototype.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+}(Button);
+
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+
+Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+/**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+};
+
+/**
+ * @file volume-level.js
+ */
+
+/**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+var VolumeLevel = function (_Component) {
+ inherits(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ classCallCheck(this, VolumeLevel);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ VolumeLevel.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+}(Component);
+
+Component.registerComponent('VolumeLevel', VolumeLevel);
+
+/**
+ * @file volume-bar.js
+ */
+
+/**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+var VolumeBar = function (_Slider) {
+ inherits(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ classCallCheck(this, VolumeBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.on('slideractive', _this.updateLastVolume_);
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ };
+
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+
+
+ VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ };
+
+ /**
+ * If the player is muted unmute it.
+ */
+
+
+ VolumeBar.prototype.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ };
+
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+
+
+ VolumeBar.prototype.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+ return this.player_.volume();
+ };
+
+ /**
+ * Increase volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ };
+
+ /**
+ * Decrease volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ };
+
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+
+
+ VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ };
+
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+
+
+ VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ };
+
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+
+
+ VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+}(Slider);
+
+/**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+};
+
+/**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+VolumeBar.prototype.playerEvent = 'volumechange';
+
+Component.registerComponent('VolumeBar', VolumeBar);
+
+/**
+ * @file volume-control.js
+ */
+
+/**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+var VolumeControl = function (_Component) {
+ inherits(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumeControl);
+
+ options.vertical = options.vertical || false;
+
+ // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ checkVolumeSupport(_this, player);
+
+ _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+
+ _this.on('mousedown', _this.handleMouseDown);
+ _this.on('touchstart', _this.handleMouseDown);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+ _this.addClass('vjs-slider-active');
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+ _this.removeClass('vjs-slider-active');
+ _this.trigger('sliderinactive');
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeControl.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-control vjs-control ' + orientationClass
+ });
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+}(Component);
+
+/**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+};
+
+Component.registerComponent('VolumeControl', VolumeControl);
+
+/**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+};
+
+/**
+ * @file mute-toggle.js
+ */
+
+/**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+var MuteToggle = function (_Button) {
+ inherits(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ classCallCheck(this, MuteToggle);
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ checkMuteSupport(_this, player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MuteToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MuteToggle.prototype.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ };
+
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+
+
+ MuteToggle.prototype.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ };
+
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3;
+
+ // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+ if (IS_IOS) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ }
+
+ // TODO improve muted icon classes
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, 'vjs-vol-' + i);
+ }
+ addClass(this.el_, 'vjs-vol-' + level);
+ };
+
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+}(Button);
+
+/**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+MuteToggle.prototype.controlText_ = 'Mute';
+
+Component.registerComponent('MuteToggle', MuteToggle);
+
+/**
+ * @file volume-control.js
+ */
+
+/**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+var VolumePanel = function (_Component) {
+ inherits(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumePanel);
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ }
+
+ // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+ return _this;
+ }
+
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ };
+
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ };
+
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+
+
+ VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ }
+
+ // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumePanel.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-panel vjs-control ' + orientationClass
+ });
+ };
+
+ return VolumePanel;
+}(Component);
+
+/**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+};
+
+Component.registerComponent('VolumePanel', VolumePanel);
+
+/**
+ * @file menu.js
+ */
+
+/**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+var Menu = function (_Component) {
+ inherits(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ classCallCheck(this, Menu);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyPress);
+ return _this;
+ }
+
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+
+
+ Menu.prototype.addItem = function addItem(component) {
+ this.addChild(component);
+ component.on('click', bind(this, function (event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+
+ // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+ if (component.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }));
+ };
+
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+
+
+ Menu.prototype.createEl = function createEl$$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_);
+
+ // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+
+ return el;
+ };
+
+ Menu.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+
+
+ Menu.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepForward();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepBack();
+ }
+ };
+
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+
+
+ Menu.prototype.focus = function focus() {
+ var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+}(Component);
+
+Component.registerComponent('Menu', Menu);
+
+/**
+ * @file menu-button.js
+ */
+
+/**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+var MenuButton = function (_Component) {
+ inherits(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, MenuButton);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+ // Add buildCSSClass values to the button, not the wrapper
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+ _this.on(_this.menuButton_, 'focus', _this.handleFocus);
+ _this.on(_this.menuButton_, 'blur', _this.handleBlur);
+
+ _this.on('keydown', _this.handleSubmenuKeyPress);
+ return _this;
+ }
+
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ MenuButton.prototype.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+
+
+ MenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, { menuButton: this });
+
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+ this.hideThreshold_ = 0;
+
+ // Add a title list item to the top
+ if (this.options_.title) {
+ var title = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+
+ this.hideThreshold_ += 1;
+
+ menu.children_.unshift(title);
+ prependTo(title, menu.contentEl());
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+
+
+ MenuButton.prototype.createItems = function createItems() {};
+
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuButton.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ };
+
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+
+
+ MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ // TODO: Fix the CSS so that this isn't necessary
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ MenuButton.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();
+
+ return this.menuButton_.controlText(text, el);
+ };
+
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuButton.prototype.handleClick = function handleClick(event) {
+ // When you click the button it adds focus, which will show the menu.
+ // So we'll remove focus when the mouse leaves the button. Focus is needed
+ // for tab navigation.
+
+ this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {
+ this.unpressButton();
+ this.el_.blur();
+ }));
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ };
+
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+
+
+ MenuButton.prototype.focus = function focus() {
+ this.menuButton_.focus();
+ };
+
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+
+
+ MenuButton.prototype.blur = function blur() {
+ this.menuButton_.blur();
+ };
+
+ /**
+ * This gets called when a `MenuButton` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ MenuButton.prototype.handleFocus = function handleFocus() {
+ on(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when a `MenuButton` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ MenuButton.prototype.handleBlur = function handleBlur() {
+ off(document, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyPress} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ // Up (38) key or Down (40) key press the 'button'
+ } else if (event.which === 38 || event.which === 40) {
+ if (!this.buttonPressed_) {
+ this.pressButton();
+ event.preventDefault();
+ }
+ }
+ };
+
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ }
+ };
+
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+
+
+ MenuButton.prototype.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+ // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ };
+
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+
+
+ MenuButton.prototype.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ };
+
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.disable = function disable() {
+ this.unpressButton();
+
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+
+ this.menuButton_.disable();
+ };
+
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+}(Component);
+
+Component.registerComponent('MenuButton', MenuButton);
+
+/**
+ * @file track-button.js
+ */
+
+/**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+var TrackButton = function (_MenuButton) {
+ inherits(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ classCallCheck(this, TrackButton);
+
+ var tracks = options.tracks;
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return possibleConstructorReturn(_this);
+ }
+
+ var updateHandler = bind(_this, _this.update);
+
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+ return _this;
+ }
+
+ return TrackButton;
+}(MenuButton);
+
+Component.registerComponent('TrackButton', TrackButton);
+
+/**
+ * @file menu-item.js
+ */
+
+/**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+var MenuItem = function (_ClickableComponent) {
+ inherits(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ classCallCheck(this, MenuItem);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+ return _this;
+ }
+
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: '<span class="vjs-menu-item-text">' + this.localize(this.options_.label) + '</span>',
+ tabIndex: -1
+ }, props), attrs);
+ };
+
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuItem.prototype.handleClick = function handleClick(event) {
+ this.selected(true);
+ };
+
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+
+
+ MenuItem.prototype.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true');
+ // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false');
+ // Indicate un-selected state to screen reader
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+}(ClickableComponent);
+
+Component.registerComponent('MenuItem', MenuItem);
+
+/**
+ * @file text-track-menu-item.js
+ */
+
+/**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+var TextTrackMenuItem = function (_MenuItem) {
+ inherits(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ classCallCheck(this, TextTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.textTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_this, args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ });
+
+ // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+ if (tracks.onchange === undefined) {
+ var event = void 0;
+
+ _this.on(['tap', 'click'], function () {
+ if (_typeof(window$1.Event) !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window$1.Event('change');
+ } catch (err) {
+ // continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ }
+
+ // set the default state based on current tracks
+ _this.handleTracksChange();
+ return _this;
+ }
+
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ TextTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var kind = this.track.kind;
+ var kinds = this.track.kinds;
+ var tracks = this.player_.textTracks();
+
+ if (!kinds) {
+ kinds = [kind];
+ }
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ if (track === this.track && kinds.indexOf(track.kind) > -1) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ }
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ };
+
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing';
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage;
+
+ // Don't replace the kind of track across the same language
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ TextTrackMenuItem.prototype.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+/**
+ * @file off-text-track-menu-item.js
+ */
+
+/**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var OffTextTrackMenuItem = function (_TextTrackMenuItem) {
+ inherits(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ classCallCheck(this, OffTextTrackMenuItem);
+
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ kind: options.kind,
+ kinds: options.kinds,
+ default: false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ }
+
+ // MenuItem is selectable
+ options.selectable = true;
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ options.multiSelectable = false;
+
+ return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ }
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+/**
+ * @file text-track-button.js
+ */
+
+/**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+var TextTrackButton = function (_TrackButton) {
+ inherits(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, TextTrackButton);
+
+ options.tracks = player.textTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ TextTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;
+
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label = void 0;
+
+ if (this.label_) {
+ label = this.label_ + ' off';
+ }
+ // Add an OFF menu item to turn all tracks off
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+
+ this.hideThreshold_ += 1;
+
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // only add tracks that are of an appropriate kind and have a label
+ if (this.kinds_.indexOf(track.kind) > -1) {
+
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+
+ item.addClass('vjs-' + track.kind + '-menu-item');
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+}(TrackButton);
+
+Component.registerComponent('TextTrackButton', TextTrackButton);
+
+/**
+ * @file chapters-track-menu-item.js
+ */
+
+/**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+var ChaptersTrackMenuItem = function (_MenuItem) {
+ inherits(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ classCallCheck(this, ChaptersTrackMenuItem);
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime();
+
+ // Modify options for parent MenuItem class's init.
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ };
+
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+
+
+ ChaptersTrackMenuItem.prototype.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime();
+
+ // vjs.log(currentTime, cue.startTime);
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+/**
+ * @file chapters-button.js
+ */
+
+/**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+var ChaptersButton = function (_TextTrackButton) {
+ inherits(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ classCallCheck(this, ChaptersButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+
+
+ ChaptersButton.prototype.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+ _TextTrackButton.prototype.update.call(this);
+ };
+
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+
+
+ ChaptersButton.prototype.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ }
+
+ // here this.track_ refers to the old track instance
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track;
+
+ // here this.track_ refers to the new track instance
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ };
+
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+
+
+ ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ };
+
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+
+
+ ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+ return this.localize(toTitleCase(this.kind_));
+ };
+
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+
+
+ ChaptersButton.prototype.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ };
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+
+
+ ChaptersButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });
+
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ChaptersButton.prototype.kind_ = 'chapters';
+
+/**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ChaptersButton.prototype.controlText_ = 'Chapters';
+
+Component.registerComponent('ChaptersButton', ChaptersButton);
+
+/**
+ * @file descriptions-button.js
+ */
+
+/**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+var DescriptionsButton = function (_TextTrackButton) {
+ inherits(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ classCallCheck(this, DescriptionsButton);
+
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+ var tracks = player.textTracks();
+ var changeHandler = bind(_this, _this.handleTracksChange);
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false;
+
+ // Check whether a track of a different kind is showing
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ }
+
+ // If another track is showing, disable this menu button
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+DescriptionsButton.prototype.kind_ = 'descriptions';
+
+/**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+/**
+ * @file subtitles-button.js
+ */
+
+/**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+var SubtitlesButton = function (_TextTrackButton) {
+ inherits(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ classCallCheck(this, SubtitlesButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+SubtitlesButton.prototype.kind_ = 'subtitles';
+
+/**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+SubtitlesButton.prototype.controlText_ = 'Subtitles';
+
+Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+/**
+ * @file caption-settings-menu-item.js
+ */
+
+/**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var CaptionSettingsMenuItem = function (_TextTrackMenuItem) {
+ inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ classCallCheck(this, CaptionSettingsMenuItem);
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ default: false,
+ mode: 'disabled'
+ };
+
+ // CaptionSettingsMenuItem has no concept of 'selected'
+ options.selectable = false;
+
+ options.name = 'CaptionSettingsMenuItem';
+
+ var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+
+ _this.addClass('vjs-texttrack-settings');
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+ return _this;
+ }
+
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+/**
+ * @file captions-button.js
+ */
+
+/**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+var CaptionsButton = function (_TextTrackButton) {
+ inherits(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ classCallCheck(this, CaptionsButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ CaptionsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+}(TextTrackButton);
+
+/**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+CaptionsButton.prototype.kind_ = 'captions';
+
+/**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+CaptionsButton.prototype.controlText_ = 'Captions';
+
+Component.registerComponent('CaptionsButton', CaptionsButton);
+
+/**
+ * @file subs-caps-menu-item.js
+ */
+
+/**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+var SubsCapsMenuItem = function (_TextTrackMenuItem) {
+ inherits(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ classCallCheck(this, SubsCapsMenuItem);
+ return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));
+ }
+
+ SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Captions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+}(TextTrackMenuItem);
+
+Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+/**
+ * @file sub-caps-button.js
+ */
+/**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+var SubsCapsButton = function (_TextTrackButton) {
+ inherits(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, SubsCapsButton);
+
+ // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));
+
+ _this.label_ = 'subtitles';
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ SubsCapsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+}(TextTrackButton);
+
+/**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+/**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+SubsCapsButton.prototype.controlText_ = 'Subtitles';
+
+Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+/**
+ * @file audio-track-menu-item.js
+ */
+
+/**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+var AudioTrackMenuItem = function (_MenuItem) {
+ inherits(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ classCallCheck(this, AudioTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.audioTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+
+ _this.addClass('vjs-' + track.kind + '-menu-item');
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Descriptions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.enabled = track === this.track;
+ }
+ };
+
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+
+
+ AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+}(MenuItem);
+
+Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+/**
+ * @file audio-track-button.js
+ */
+
+/**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+var AudioTrackButton = function (_TrackButton) {
+ inherits(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, AudioTrackButton);
+
+ options.tracks = player.audioTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+
+
+ AudioTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+}(TrackButton);
+
+/**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+AudioTrackButton.prototype.controlText_ = 'Audio Track';
+Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+/**
+ * @file playback-rate-menu-item.js
+ */
+
+/**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+var PlaybackRateMenuItem = function (_MenuItem) {
+ inherits(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ classCallCheck(this, PlaybackRateMenuItem);
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10);
+
+ // Modify options for parent MenuItem class's init.
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+ return _this;
+ }
+
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player().playbackRate(this.rate);
+ };
+
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuItem.prototype.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+}(MenuItem);
+
+/**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuItem.prototype.contentElType = 'button';
+
+Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+/**
+ * @file playback-rate-menu-button.js
+ */
+
+/**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+var PlaybackRateMenuButton = function (_MenuButton) {
+ inherits(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ classCallCheck(this, PlaybackRateMenuButton);
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ _this.updateVisibility();
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+ _this.on(player, 'ratechange', _this.updateLabel);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+
+ el.appendChild(this.labelEl_);
+
+ return el;
+ };
+
+ PlaybackRateMenuButton.prototype.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+
+
+ PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Updates ARIA accessibility attributes
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ };
+
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates();
+
+ // this will select first one if the last one currently selected
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+ this.player().playbackRate(newRate);
+ };
+
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ };
+
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ };
+
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ };
+
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+}(MenuButton);
+
+/**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+/**
+ * @file spacer.js
+ */
+
+/**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+var Spacer = function (_Component) {
+ inherits(Spacer, _Component);
+
+ function Spacer() {
+ classCallCheck(this, Spacer);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ Spacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ Spacer.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+}(Component);
+
+Component.registerComponent('Spacer', Spacer);
+
+/**
+ * @file custom-control-spacer.js
+ */
+
+/**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+var CustomControlSpacer = function (_Spacer) {
+ inherits(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ classCallCheck(this, CustomControlSpacer);
+ return possibleConstructorReturn(this, _Spacer.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ CustomControlSpacer.prototype.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ });
+
+ // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+ el.innerHTML = '\xA0';
+ return el;
+ };
+
+ return CustomControlSpacer;
+}(Spacer);
+
+Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+/**
+ * @file control-bar.js
+ */
+
+/**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+var ControlBar = function (_Component) {
+ inherits(ControlBar, _Component);
+
+ function ControlBar() {
+ classCallCheck(this, ControlBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ControlBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+}(Component);
+
+/**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+};
+
+Component.registerComponent('ControlBar', ControlBar);
+
+/**
+ * @file error-display.js
+ */
+
+/**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+var ErrorDisplay = function (_ModalDialog) {
+ inherits(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ classCallCheck(this, ErrorDisplay);
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.on(player, 'error', _this.open);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+
+
+ ErrorDisplay.prototype.content = function content() {
+ var error = this.player().error();
+
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+}(ModalDialog);
+
+/**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+});
+
+Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+/**
+ * @file text-track-settings.js
+ */
+
+var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+
+var COLOR_BLACK = ['#000', 'Black'];
+var COLOR_BLUE = ['#00F', 'Blue'];
+var COLOR_CYAN = ['#0FF', 'Cyan'];
+var COLOR_GREEN = ['#0F0', 'Green'];
+var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+var COLOR_RED = ['#F00', 'Red'];
+var COLOR_WHITE = ['#FFF', 'White'];
+var COLOR_YELLOW = ['#FF0', 'Yellow'];
+
+var OPACITY_OPAQUE = ['1', 'Opaque'];
+var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+var OPACITY_TRANS = ['0', 'Transparent'];
+
+// Configuration for the various <select> elements in the DOM of this component.
+//
+// Possible keys include:
+//
+// `default`:
+// The default option index. Only needs to be provided if not zero.
+// `parser`:
+// A function which is used to parse the value from the selected option in
+// a customized way.
+// `selector`:
+// The selector used to find the associated <select> element.
+var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ default: 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+};
+
+selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+/**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+}
+
+/**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+
+ return parseOptionValue(value, parser);
+}
+
+/**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+}
+
+/**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+var TextTrackSettings = function (_ModalDialog) {
+ inherits(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ classCallCheck(this, TextTrackSettings);
+
+ options.temporary = false;
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.updateDisplay = bind(_this, _this.updateDisplay);
+
+ // fill the modal and pretend we have opened it
+ _this.fill();
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults();
+
+ // Grab `persistTextTrackSettings` from the player options if not passed in child options
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+ return _this;
+ }
+
+ TextTrackSettings.prototype.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {
+ var _this2 = this;
+
+ var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+ var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+
+ return ['<' + type + ' id="' + id + '" class="' + (type === 'label' ? 'vjs-label' : '') + '">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby="' + selectLabelledbyIds + '">'].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+
+ return ['<option id="' + optionId + '" value="' + o[0] + '" ', 'aria-labelledby="' + selectLabelledbyIds + ' ' + optionId + '">', _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ };
+
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {
+ var legendId = 'captions-text-legend-' + this.id_;
+
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {
+ var legendId = 'captions-background-' + this.id_;
+
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {
+ var legendId = 'captions-window-' + this.id_;
+
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ };
+
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ };
+
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ['<button class="vjs-default-button" title="' + defaultsDescription + '">', this.localize('Reset'), '<span class="vjs-control-text"> ' + defaultsDescription + '</span>', '</button>', '<button class="vjs-done-button">' + this.localize('Done') + '</button>'].join('')
+ });
+ };
+
+ TextTrackSettings.prototype.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ TextTrackSettings.prototype.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ TextTrackSettings.prototype.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ };
+
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ };
+
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ };
+
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+
+
+ TextTrackSettings.prototype.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config.default : 0;
+
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ };
+
+ /**
+ * Restore texttrack settings from localStorage
+ */
+
+
+ TextTrackSettings.prototype.restoreSettings = function restoreSettings() {
+ var values = void 0;
+
+ try {
+ values = JSON.parse(window$1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log$1.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ };
+
+ /**
+ * Save text track settings to localStorage
+ */
+
+
+ TextTrackSettings.prototype.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window$1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window$1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log$1.warn(err);
+ }
+ };
+
+ /**
+ * Update display of text track settings
+ */
+
+
+ TextTrackSettings.prototype.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ this.off(document, 'keydown', this.handleKeyDown);
+
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+}(ModalDialog);
+
+Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+/**
+ * @file resize-manager.js
+ */
+
+/**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+var ResizeManager = function (_Component) {
+ inherits(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ classCallCheck(this, ResizeManager);
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window$1.ResizeObserver;
+
+ // if `null` was passed, we want to disable the ResizeObserver
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ }
+
+ // Only create an element when ResizeObserver isn't available
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));
+
+ _this.ResizeObserver = options.ResizeObserver || window$1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _this);
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+ return _this;
+ }
+
+ ResizeManager.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager'
+ });
+ };
+
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+
+
+ ResizeManager.prototype.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ ResizeManager.prototype.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.el_ && this.el_.contentWindow) {
+ off(this.el_.contentWindow, 'resize', this.debouncedHandler_);
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+ };
+
+ return ResizeManager;
+}(Component);
+
+Component.registerComponent('ResizeManager', ResizeManager);
+
+/**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el();
+
+ // if `el.src` is set, that source will be loaded.
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = '';
+
+ // if there are no sources, do not fire sourceset
+ if (!sources.length) {
+ return false;
+ }
+
+ // only count valid/non-duplicate source elements
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ }
+
+ // there were no valid sources
+ if (!srcUrls.length) {
+ return false;
+ }
+
+ // there is only one valid source element url
+ // use that
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+};
+
+/**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document.createElement(this.nodeName.toLowerCase());
+
+ // set innerHTML to the value provided
+ dummy.innerHTML = v;
+
+ // make a document fragment to hold the nodes from dummy
+ var docFrag = document.createDocumentFragment();
+
+ // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ }
+
+ // remove content
+ this.innerText = '';
+
+ // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+ window$1.Element.prototype.appendChild.call(this, docFrag);
+
+ // then return the result that innerHTML's setter would
+ return this.innerHTML;
+ }
+});
+
+/**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+
+ return descriptor;
+};
+
+var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window$1.HTMLMediaElement.prototype, window$1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+};
+
+/**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el();
+
+ // make sure firstSourceWatch isn't setup twice.
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+
+ sourcesetLoad(tech);
+
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ }
+
+ // store the old function
+ old[k] = el[k];
+
+ // call the old function with a sourceset if a source
+ // was loaded
+ el[k] = appendWrapper(old[k]);
+ });
+
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ };
+
+ // on the first sourceset, we need to revert our changes
+ tech.one('sourceset', el.resetSourceWatch_);
+};
+
+/**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window$1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window$1.Element.prototype.setAttribute.call(this, 'src', v);
+
+ return v;
+ }
+});
+
+var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window$1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+};
+
+/**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el();
+
+ // make sure sourceset isn't setup twice.
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v);
+
+ // we use the getter here to get the actual value set on src
+ tech.triggerSourceset(el.src);
+
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el);
+
+ // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+};
+
+var _templateObject$1 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.']);
+
+/**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+var Html5 = function (_Tech) {
+ inherits(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ classCallCheck(this, Html5);
+
+ var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));
+
+ var source = options.source;
+ var crossoriginTracks = false;
+
+ // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ }
+
+ // setup sourceset after late sourceset/init
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+ _this.remoteTextTracks().addTrack(node.track);
+ _this.textTracks().addTrack(node.track);
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log$1.warn(tsml(_templateObject$1));
+ }
+
+ // prevent iOS Safari from disabling metadata text tracks during native playback
+ _this.restoreMetadataTracksInIOSNativePlayer_();
+
+ // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ }
+
+ // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+ return _this;
+ }
+
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ Html5.prototype.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null;
+
+ // tech will handle clearing of the emulated track list
+ _Tech.prototype.dispose.call(this);
+ };
+
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+
+
+ Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ };
+
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState = void 0;
+
+ // captures a snapshot of every metadata track's current state
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ };
+
+ // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ }
+ // we only want this handler to be executed on the first 'change' event
+ textTracks.removeEventListener('change', restoreTrackMode);
+ };
+
+ // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ });
+
+ // start updating the snapshot again after leaving fullscreen
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ };
+
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {String} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {Boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+
+
+ Html5.prototype.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this['featuresNative' + type + 'Tracks']) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + 'TracksListeners_']) {
+ Object.keys(this[lowerCaseType + 'TracksListeners_']).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + 'Tracks'];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + 'TracksListeners_'][eventName]);
+ });
+ }
+
+ this['featuresNative' + type + 'Tracks'] = !override;
+ this[lowerCaseType + 'TracksListeners_'] = null;
+
+ this.proxyNativeTracksForType_(lowerCaseType);
+ };
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ };
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ };
+
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+
+ elTracks.addEventListener(eventName, listener);
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ });
+
+ // Remove (native) tracks that are not used anymore
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ };
+
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ };
+
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Html5.prototype.createEl = function createEl$$1() {
+ var el = this.options_.tag;
+
+ // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document.createElement('video');
+
+ // determine if native controls should be used
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ class: 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ }
+
+ // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ };
+
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+
+
+ Html5.prototype.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+
+ return;
+ }
+
+ // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+ var eventsToTrigger = ['loadstart'];
+
+ // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+ eventsToTrigger.push('loadedmetadata');
+
+ // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ }
+
+ // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ }
+
+ // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ }
+
+ // We still need to give the player time to add event listeners
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ };
+
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+
+
+ Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log$1(e, 'Video is not ready. (Video.js)');
+ // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ };
+
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+
+
+ Html5.prototype.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+ return this.el_.duration || NaN;
+ };
+
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+
+
+ Html5.prototype.width = function width() {
+ return this.el_.offsetWidth;
+ };
+
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+
+
+ Html5.prototype.height = function height() {
+ return this.el_.offsetHeight;
+ };
+
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+
+
+ Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', { isFullscreen: false });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+
+ this.trigger('fullscreenchange', { isFullscreen: true });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ };
+
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+
+
+ Html5.prototype.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window$1.navigator && window$1.navigator.userAgent || '';
+
+ // Seems to be broken in Chromium/Chrome && Safari in Leopard
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+
+
+ Html5.prototype.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play();
+
+ // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ };
+
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+
+
+ Html5.prototype.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ };
+
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ Html5.prototype.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ }
+
+ // Setting src through `src` instead of `setSrc` will be deprecated
+ this.setSrc(_src);
+ };
+
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+
+
+ Html5.prototype.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ };
+
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+
+
+ Html5.prototype.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+ return this.el_.currentSrc;
+ };
+
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+
+
+ Html5.prototype.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ };
+
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+ var htmlTrackElement = document.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+ if (options.default) {
+ htmlTrackElement.default = options.default;
+ }
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+
+
+ Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+
+
+ Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window$1.performance && typeof window$1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window$1.performance.now();
+ } else if (window$1.performance && window$1.performance.timing && typeof window$1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window$1.Date.now() - window$1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+}(Tech);
+
+/* HTML5 Support Testing ---------------------------------------------------- */
+
+if (isReal()) {
+
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document.createElement('video');
+ var track = document.createElement('track');
+
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+}
+
+/**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+};
+
+/**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+};
+
+/**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+};
+
+/**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+};
+
+/**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted;
+
+ // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+ Html5.TEST_VID.muted = !muted;
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+};
+
+/**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ }
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+};
+
+/**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document.createElement('video'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document.createElement('audio'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document.createElement('video'), 'innerHTML', { get: noop, set: noop });
+ Object.defineProperty(document.createElement('audio'), 'innerHTML', { get: noop, set: noop });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+};
+
+/**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+};
+
+/**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+};
+
+/**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+};
+
+/**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+/**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+/**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+
+/**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+
+/**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+// TODO: Previous comment: No longer appears to be used. Can probably be removed.
+// Is this true?
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.featuresFullscreenResize = true;
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+Html5.prototype.featuresProgressEvents = true;
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+Html5.prototype.featuresTimeupdateEvents = true;
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+
+/**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();
+
+// HTML5 Feature detection and Device Fixes --------------------------------- //
+var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+Html5.patchCanPlayType = function () {
+
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+ return canPlayType.call(this, type);
+ };
+ }
+};
+
+Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+};
+
+// by default, patch the media element
+Html5.patchCanPlayType();
+
+Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ }
+
+ // remove any child track or source nodes to prevent their loading
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ }
+
+ // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+ el.removeAttribute('src');
+
+ // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // not supported
+ }
+ })();
+ }
+};
+
+Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ }
+
+ // remove any src reference.
+ // not setting `src=''` because that throws an error
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // satisfy linter
+ }
+ })();
+ }
+};
+
+/* Native HTML5 element property wrapping ----------------------------------- */
+// Wrap native boolean attributes with getters that check both property and attribute
+// The list is as followed:
+// muted, defaultMuted, autoplay, controls, loop, playsinline
+[
+/**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+'muted',
+
+/**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+'defaultMuted',
+
+/**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+'autoplay',
+
+/**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+'controls',
+
+/**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+'loop',
+
+/**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+});
+
+// Wrap native boolean attributes with setters that set both property and attribute
+// The list is as followed:
+// setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+// setControls is special-cased above
+[
+/**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+'muted',
+
+/**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+'defaultMuted',
+
+/**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+'autoplay',
+
+/**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+'loop',
+
+/**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+});
+
+// Wrap native properties with a getter
+// The list is as followed
+// paused, currentTime, buffered, volume, poster, preload, error, seeking
+// seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+// readyState, videoWidth, videoHeight
+[
+/**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+'paused',
+
+/**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+'currentTime',
+
+/**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+'buffered',
+
+/**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+'volume',
+
+/**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+'poster',
+
+/**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+'preload',
+
+/**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+'error',
+
+/**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+'seeking',
+
+/**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+'seekable',
+
+/**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+'ended',
+
+/**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'playbackRate',
+
+/**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'defaultPlaybackRate',
+
+/**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+'played',
+
+/**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+'networkState',
+
+/**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+'readyState',
+
+/**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+'videoWidth',
+
+/**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+});
+
+// Wrap native properties with a setter in this format:
+// set + toTitleCase(name)
+// The list is as follows:
+// setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+[
+/**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+'volume',
+
+/**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+'src',
+
+/**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+'poster',
+
+/**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+'preload',
+
+/**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+'playbackRate',
+
+/**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+});
+
+// wrap native functions with a function
+// The list is as follows:
+// pause, load, play
+[
+/**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+'pause',
+
+/**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+'load',
+
+/**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+});
+
+Tech.withSourceHandlers(Html5);
+
+/**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+Html5.nativeSourceHandler = {};
+
+/**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+};
+
+/**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type);
+
+ // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+
+ return Html5.nativeSourceHandler.canPlayType('video/' + ext);
+ }
+
+ return '';
+};
+
+/**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+};
+
+/**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+Html5.nativeSourceHandler.dispose = function () {};
+
+// Register the native source handler
+Html5.registerSourceHandler(Html5.nativeSourceHandler);
+
+Tech.registerTech('Html5', Html5);
+
+var _templateObject$2 = taggedTemplateLiteralLoose(['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n '], ['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n ']);
+
+// The following tech events are simply re-triggered
+// on the player when they happen
+var TECH_EVENTS_RETRIGGER = [
+/**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+'progress',
+
+/**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+'abort',
+
+/**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+'suspend',
+
+/**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+'emptied',
+/**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+'stalled',
+
+/**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+/**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+'loadedmetadata',
+
+/**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+/**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+'loadeddata',
+
+/**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+/**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+'timeupdate',
+
+/**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+/**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+'resize',
+
+/**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+/**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+'volumechange',
+
+/**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+/**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+'texttrackchange'];
+
+// events to queue when playback rate is zero
+// this is a hash for the sole purpose of mapping non-camel-cased event names
+// to camel-cased function names
+var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+};
+
+/**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+var Player = function (_Component) {
+ inherits(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ classCallCheck(this, Player);
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || 'vjs_video_' + newGUID();
+
+ // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+ options = assign(Player.getTagSettings(tag), options);
+
+ // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+ options.initChildren = false;
+
+ // Same with creating the element
+ options.createEl = false;
+
+ // don't auto mixin the evented mixin
+ options.evented = false;
+
+ // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+ options.reportTouchActivity = false;
+
+ // If language is not set, get the closest lang attribute
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+ element = element.parentNode;
+ }
+ }
+ }
+
+ // Run base component initializing with new options
+
+ // Tracks when a tech changes the poster
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.isPosterFromTech_ = false;
+
+ // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+ _this.queuedCallbacks_ = [];
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ _this.isReady_ = false;
+
+ // Init state hasStarted_
+ _this.hasStarted_ = false;
+
+ // Init state userActive_
+ _this.userActive_ = false;
+
+ // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ }
+
+ // Store the original tag used to set options
+ _this.tag = tag;
+
+ // Store the tag attributes used to restore html5 element
+ _this.tagAttributes = tag && getAttributes(tag);
+
+ // Update current language
+ _this.language(_this.options_.language);
+
+ // Update Supported Languages
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+
+ Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {
+ languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ // Cache for video property values.
+ _this.cache_ = {};
+
+ // Set poster
+ _this.poster_ = options.poster || '';
+
+ // Set controls
+ _this.controls_ = !!options.controls;
+
+ // Set default values for lastVolume
+ _this.cache_.lastVolume = 1;
+
+ // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+ tag.controls = false;
+ tag.removeAttribute('controls');
+
+ // the attribute overrides the option
+ if (tag.hasAttribute('autoplay')) {
+ _this.options_.autoplay = true;
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ }
+
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+ _this.scrubbing_ = false;
+
+ _this.el_ = _this.createEl();
+
+ // Set default value for lastPlaybackRate
+ _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();
+
+ // Make this an evented object and use `el_` as its event bus.
+ evented(_this, { eventBusKey: 'el_' });
+
+ // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+ var playerOptionsCopy = mergeOptions(_this.options_);
+
+ // Load plugins
+ if (options.plugins) {
+ var plugins = options.plugins;
+
+ Object.keys(plugins).forEach(function (name$$1) {
+ if (typeof this[name$$1] === 'function') {
+ this[name$$1](plugins[name$$1]);
+ } else {
+ throw new Error('plugin "' + name$$1 + '" does not exist');
+ }
+ }, _this);
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+
+ _this.middleware_ = [];
+
+ _this.initChildren();
+
+ // Set isAudio based on whether or not an audio tag was used
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+ // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ }
+
+ // Set ARIA label and region role depending on player type
+ _this.el_.setAttribute('role', 'region');
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ }
+
+ // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // if (browser.TOUCH_ENABLED) {
+ // this.addClass('vjs-touch-enabled');
+ // }
+
+ // iOS Safari has broken hover handling
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ }
+
+ // Make player easily findable by ID
+ Player.players[_this.id_] = _this;
+
+ // Add a major version class to aid css in plugins
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass('vjs-v' + majorVersion);
+
+ // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+ _this.userActive(true);
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+ _this.on('fullscreenchange', _this.handleFullscreenChange_);
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.changingSrc_ = false;
+ _this.playWaitingForReady_ = false;
+ _this.playOnLoadstart_ = null;
+ return _this;
+ }
+
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ Player.prototype.dispose = function dispose() {
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose');
+ // prevent dispose from being called twice
+ this.off('dispose');
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ }
+
+ // Kill reference to this player
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this);
+
+ // the actual .el_ is removed here
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ Player.prototype.createEl = function createEl$$1() {
+ var tag = this.tag;
+ var el = void 0;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ }
+
+ // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document.createElement('video');
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+
+ playerElIngest = this.playerElIngest_ = el;
+ // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+ Object.keys(el).forEach(function (k) {
+ tag[k] = el[k];
+ });
+ }
+
+ // set tabindex to -1 to remove the video element from the focus order
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1';
+
+ // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 if JAWS is not being used
+ if (IE_VERSION) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ }
+
+ // Remove width/height attrs from tag so CSS can make it 100% width/height
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ });
+
+ // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech';
+
+ // Make player findable on elements
+ tag.player = el.player = this;
+ // Default state of video is paused
+ this.addClass('vjs-paused');
+
+ // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+ if (window$1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ // Pass in the width/height/aspectRatio options which will update the style el
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio);
+
+ // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ }
+
+ // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+ tag.initNetworkState_ = tag.networkState;
+
+ // Wrap video tag in div (el/box) container
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ }
+
+ // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+ prependTo(tag, el);
+ this.children_.unshift(tag);
+
+ // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+ this.el_.setAttribute('lang', this.language_);
+
+ this.el_ = el;
+
+ return el;
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+
+
+ Player.prototype.width = function width(value) {
+ return this.dimension('width', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+
+
+ Player.prototype.height = function height(value) {
+ return this.dimension('height', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+
+
+ Player.prototype.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log$1.error('Improper value "' + value + '" supplied for for ' + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ };
+
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will toggle the fluid class.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+
+
+ Player.prototype.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+
+
+ Player.prototype.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ }
+
+ // Check for width:height format
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+ this.aspectRatio_ = ratio;
+
+ // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+ this.fluid(true);
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+
+
+ Player.prototype.updateStyleEl_ = function updateStyleEl_() {
+ if (window$1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width = void 0;
+ var height = void 0;
+ var aspectRatio = void 0;
+ var idClass = void 0;
+
+ // The aspect ratio is either used directly or to calculate width and height.
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ }
+
+ // Get the ratio as a decimal we can use to calculate dimensions
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ }
+
+ // Ensure the CSS class is valid by starting with an alpha character
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ }
+
+ // Ensure the right class is still on the player for the style element
+ this.addClass(idClass);
+
+ setTextContent(this.styleEl_, '\n .' + idClass + ' {\n width: ' + width + 'px;\n height: ' + height + 'px;\n }\n\n .' + idClass + '.vjs-fluid {\n padding-top: ' + ratioMultiplier * 100 + '%;\n }\n ');
+ };
+
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+
+
+ Player.prototype.loadTech_ = function loadTech_(techName, source) {
+ var _this2 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+ // get rid of the HTML5 video tag as soon as we are using another tech
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName;
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ this.isReady_ = false;
+
+ // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();
+
+ // Grab tech-specific options from player options and add source and parent element to use.
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + '_' + camelTechName + '_api',
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset
+ };
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ techOptions[props.getterName] = _this2[props.privateName];
+ });
+
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ }
+
+ // Initialize tech instance
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error('No Tech named \'' + titleTechName + '\' exists! \'' + titleTechName + '\' should be registered using videojs.registerTech()\'');
+ }
+
+ this.tech_ = new TechClass(techOptions);
+
+ // player.triggerReady is always async, so don't need this to be async
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+ // Listen to all HTML5-defined events and trigger them on the player
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);
+ });
+
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this2.on(_this2.tech_, event, function (eventObj) {
+ if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {
+ _this2.queuedCallbacks_.push({
+ callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),
+ event: eventObj
+ });
+ return;
+ }
+ _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);
+ });
+ });
+
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+
+ // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ }
+
+ // Get rid of the original video tag reference after the first tech is loaded
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ };
+
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+
+
+ Player.prototype.unloadTech_ = function unloadTech_() {
+ var _this3 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ _this3[props.privateName] = _this3[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+
+ this.isReady_ = false;
+
+ this.tech_.dispose();
+
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ };
+
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+
+
+ Player.prototype.tech = function tech(safety) {
+ if (safety === undefined) {
+ log$1.warn(tsml(_templateObject$2));
+ }
+
+ return this.tech_;
+ };
+
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+
+
+ Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_();
+
+ // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+ this.on(this.tech_, 'mousedown', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+
+ // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);
+
+ // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ };
+
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+
+
+ Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mousedown', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ };
+
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+
+
+ Player.prototype.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady();
+
+ // Keep the same volume as before
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ }
+
+ // Look if the tech found a higher resolution poster while loading
+ this.handleTechPosterChange_();
+
+ // Update the duration if available
+ this.handleTechDurationChange_();
+ };
+
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking');
+
+ // reset the error state
+ this.error(null);
+
+ // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ }
+
+ // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+ this.manualAutoplay_(this.autoplay());
+ };
+
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+
+
+ Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this4 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this4.muted();
+
+ _this4.muted(true);
+
+ var playPromise = _this4.play();
+
+ if (!playPromise || !playPromise.then || !playPromise.catch) {
+ return;
+ }
+
+ return playPromise.catch(function (e) {
+ // restore old value of muted on failure
+ _this4.muted(previouslyMuted);
+ });
+ };
+
+ var promise = void 0;
+
+ if (type === 'any') {
+ promise = this.play();
+
+ if (promise && promise.then && promise.catch) {
+ promise.catch(function () {
+ return muted();
+ });
+ }
+ } else if (type === 'muted') {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!promise || !promise.then || !promise.catch) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this4.trigger({ type: 'autoplay-success', autoplay: type });
+ }).catch(function (e) {
+ _this4.trigger({ type: 'autoplay-failure', autoplay: type });
+ });
+ };
+
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+
+
+ Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {
+ var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ }
+
+ // if we are a blob url, don't update the source cache
+ // blob urls can arise when playback is done via Media Source Extension (MSE)
+ // such as m3u8 sources with @videojs/http-streaming (VHS)
+ if (/^blob:/.test(src)) {
+ return;
+ }
+
+ // make sure all the caches are set to default values
+ // to prevent null checking
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || [];
+
+ // try to get the type of the src that was passed in
+ if (src && !type) {
+ type = findMimetype(this, src);
+ }
+
+ // update `currentSource` cache always
+ this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });
+
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ }
+
+ // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources;
+ // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ }
+
+ // update the tech `src` cache
+ this.cache_.src = src;
+ };
+
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+
+
+ Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this5 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ // update the source to the intial source right away
+ // in some cases this will be empty string
+ this.updateSourceCaches_(event.src);
+
+ // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+ // as this function will be called again.
+ if (!event.src) {
+ var updateCache = function updateCache(e) {
+ if (e.type !== 'sourceset') {
+ _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));
+ }
+
+ _this5.tech_.off(['sourceset', 'loadstart'], updateCache);
+ };
+
+ this.tech_.one(['sourceset', 'loadstart'], updateCache);
+ }
+ }
+
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ };
+
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+
+
+ Player.prototype.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ };
+
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+
+ // hide the poster when the user hits play
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+ this.trigger('play');
+ };
+
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+
+
+ Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+ this.trigger('ratechange');
+ };
+
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+
+
+ Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this6 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+ this.trigger('waiting');
+ this.one('timeupdate', function () {
+ return _this6.removeClass('vjs-waiting');
+ });
+ };
+
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplay');
+ };
+
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplaythrough');
+ };
+
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+ this.trigger('playing');
+ };
+
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeking');
+ };
+
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeked');
+ };
+
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+
+
+ Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+ this.trigger('firstplay');
+ };
+
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+
+
+ Player.prototype.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+ this.trigger('pause');
+ };
+
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+
+
+ Player.prototype.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ended');
+ };
+
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ };
+
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mousedown
+ * @private
+ */
+
+
+ Player.prototype.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ };
+
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+
+
+ Player.prototype.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ }
+
+ // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ };
+
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+
+
+ Player.prototype.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ };
+
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ };
+
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ };
+
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ };
+
+ /**
+ * Fired when the player switches in or out of fullscreen mode
+ *
+ * @private
+ * @listens Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ };
+
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+
+
+ Player.prototype.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ };
+
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ };
+
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+
+
+ Player.prototype.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+
+ this.error(error);
+ };
+
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+
+
+ Player.prototype.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+ this.trigger('textdata', data);
+ };
+
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+
+
+ Player.prototype.getCache = function getCache() {
+ return this.cache_;
+ };
+
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+
+
+ Player.prototype.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set$1(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log$1(e);
+ throw e;
+ }
+ }, true);
+ };
+
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+
+
+ Player.prototype.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get$1(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ }
+
+ // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);
+ throw e;
+ }
+
+ // When a method isn't available on the object it throws a TypeError
+ if (e.name === 'TypeError') {
+ log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);
+ this.tech_.isReady_ = false;
+ throw e;
+ }
+
+ // If error unknown, just log and throw
+ log$1(e);
+ throw e;
+ }
+ };
+
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+
+
+ Player.prototype.play = function play() {
+ var _this7 = this;
+
+ var PromiseClass = this.options_.Promise || window$1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this7.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ };
+
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+
+
+ Player.prototype.play_ = function play_() {
+ var _this8 = this;
+
+ var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;
+
+ // If this is called while we have a play queued up on a loadstart, remove
+ // that listener to avoid getting in a potentially bad state.
+ if (this.playOnLoadstart_) {
+ this.off('loadstart', this.playOnLoadstart_);
+ }
+
+ // If the player/tech is not ready, queue up another call to `play()` for
+ // when it is. This will loop back into this method for another attempt at
+ // playback when the tech is ready.
+ if (!this.isReady_) {
+
+ // Bail out if we're already waiting for `ready`!
+ if (this.playWaitingForReady_) {
+ return;
+ }
+
+ this.playWaitingForReady_ = true;
+ this.ready(function () {
+ _this8.playWaitingForReady_ = false;
+ callback(_this8.play());
+ });
+
+ // If the player/tech is ready and we have a source, we can attempt playback.
+ } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {
+ callback(this.techGet_('play'));
+ return;
+
+ // If the tech is ready, but we do not have a source, we'll need to wait
+ // for both the `ready` and a `loadstart` when the source is finally
+ // resolved by middleware and set on the player.
+ //
+ // This can happen if `play()` is called while changing sources or before
+ // one has been set on the player.
+ } else {
+
+ this.playOnLoadstart_ = function () {
+ _this8.playOnLoadstart_ = null;
+ callback(_this8.play());
+ };
+
+ this.one('loadstart', this.playOnLoadstart_);
+ }
+ };
+
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+
+
+ Player.prototype.pause = function pause() {
+ this.techCall_('pause');
+ };
+
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+
+
+ Player.prototype.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ };
+
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+
+
+ Player.prototype.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ };
+
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+
+
+ Player.prototype.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ };
+
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+
+
+ Player.prototype.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ }
+
+ // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ };
+
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+
+
+ Player.prototype.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds);
+
+ // Standardize on Infinity for signaling video is live
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+ } else {
+ this.removeClass('vjs-live');
+ }
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ };
+
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ };
+
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ };
+
+ //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+
+
+ Player.prototype.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ };
+
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+
+
+ Player.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ };
+
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+
+
+ Player.prototype.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ };
+
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+
+
+ Player.prototype.volume = function volume(percentAsDecimal) {
+ var vol = void 0;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ }
+
+ // Default to 1 when returning current volume.
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ };
+
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+
+
+ Player.prototype.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+ return this.techGet_('muted') || false;
+ };
+
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+
+
+ Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+ return this.techGet_('defaultMuted') || false;
+ };
+
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+
+
+ Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+ return this.cache_.lastVolume;
+ };
+
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+
+
+ Player.prototype.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ };
+
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+
+
+ Player.prototype.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ return;
+ }
+ return !!this.isFullscreen_;
+ };
+
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.requestFullscreen = function requestFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(true);
+
+ if (fsApi.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {
+ this.isFullscreen(document[fsApi.fullscreenElement]);
+
+ // If cancelling fullscreen, remove event listener.
+ if (this.isFullscreen() === false) {
+ off(document, fsApi.fullscreenchange, documentFullscreenChange);
+ }
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }));
+
+ this.el_[fsApi.requestFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.exitFullscreen = function exitFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(false);
+
+ // Check for browser element fullscreen support
+ if (fsApi.requestFullscreen) {
+ document[fsApi.exitFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+
+
+ Player.prototype.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true;
+
+ // Storing original doc overflow value to return to when fullscreen is off
+ this.docOrigOverflow = document.documentElement.style.overflow;
+
+ // Add listener for esc key to exit fullscreen
+ on(document, 'keydown', bind(this, this.fullWindowOnEscKey));
+
+ // Hide any scroll bars
+ document.documentElement.style.overflow = 'hidden';
+
+ // Apply fullscreen styles
+ addClass(document.body, 'vjs-full-window');
+
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enterFullWindow');
+ };
+
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+
+
+ Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (event.keyCode === 27) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ };
+
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+
+
+ Player.prototype.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document, 'keydown', this.fullWindowOnEscKey);
+
+ // Unhide scroll bars.
+ document.documentElement.style.overflow = this.docOrigOverflow;
+
+ // Remove fullscreen styles
+ removeClass(document.body, 'vjs-full-window');
+
+ // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('exitFullWindow');
+ };
+
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Player.prototype.canPlayType = function canPlayType(type) {
+ var can = void 0;
+
+ // Loop through each playback technology in the options order
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the current tech is defined before continuing
+ if (!tech) {
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ continue;
+ }
+
+ // Check if the browser supports this technology
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+
+
+ Player.prototype.selectSource = function selectSource(sources) {
+ var _this9 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ return false;
+ });
+
+ // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found = void 0;
+
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+
+ return found;
+ };
+
+ var foundSourceAndTech = void 0;
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {
+ return { source: source, tech: techName };
+ }
+ };
+
+ // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ };
+
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+
+
+ Player.prototype.src = function src(source) {
+ var _this10 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ }
+ // filter out invalid sources and turn our source into
+ // an array of source objects
+ var sources = filterSource(source);
+
+ // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+ return;
+ }
+
+ // intial sources
+ this.changingSrc_ = true;
+
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]);
+
+ // middlewareSource is the source after it has been changed by middleware
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this10.middleware_ = mws;
+
+ // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+ _this10.cache_.sources = sources;
+ _this10.updateSourceCaches_(middlewareSource);
+
+ var err = _this10.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this10.src(sources.slice(1));
+ }
+
+ _this10.changingSrc_ = false;
+
+ // We need to wrap this in a timeout to give folks a chance to add error event handlers
+ _this10.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+
+ // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+ _this10.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this10.tech_);
+ });
+ };
+
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {Boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+
+
+ Player.prototype.src_ = function src_(source) {
+ var _this11 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true;
+ // load this technology with the chosen source
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this11.changingSrc_ = false;
+ });
+ return false;
+ }
+
+ // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+ this.ready(function () {
+
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+
+ return false;
+ };
+
+ /**
+ * Begin loading the src data.
+ */
+
+
+ Player.prototype.load = function load() {
+ this.techCall_('load');
+ };
+
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * and calls `reset` on the tech`.
+ */
+
+
+ Player.prototype.reset = function reset() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ };
+
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+
+
+ Player.prototype.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = [];
+
+ // assume `{}` or `{ src }`
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ };
+
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+
+
+ Player.prototype.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ };
+
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+
+
+ Player.prototype.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ };
+
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+
+
+ Player.prototype.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ };
+
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+
+
+ Player.prototype.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+ return this.techGet_('preload');
+ };
+
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+
+
+ Player.prototype.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay = void 0;
+
+ // if the value is a valid string set it to that
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false;
+
+ // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false;
+
+ // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = techAutoplay || this.options_.autoplay;
+
+ // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ };
+
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+
+
+ Player.prototype.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+ return this.techGet_('playsinline');
+ };
+
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {string}
+ * The current value of loop when getting
+ */
+
+
+ Player.prototype.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+ return this.techGet_('loop');
+ };
+
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+
+
+ Player.prototype.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ }
+
+ // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ }
+
+ // update the internal poster variable
+ this.poster_ = src;
+
+ // update the tech's poster
+ this.techCall_('setPoster', src);
+
+ this.isPosterFromTech_ = false;
+
+ // alert components that the poster has been set
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('posterchange');
+ };
+
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true;
+
+ // Let components know the poster has changed
+ this.trigger('posterchange');
+ }
+ }
+ };
+
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+
+
+ Player.prototype.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsenabled');
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsdisabled');
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ };
+
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+
+
+ Player.prototype.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingcustomcontrols');
+ }
+ };
+
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+
+
+ Player.prototype.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ }
+
+ // restoring to default
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+ return;
+ }
+
+ this.error_ = new MediaError(err);
+
+ // add the vjs-error classname to the player
+ this.addClass('vjs-error');
+
+ // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+ log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);
+
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+ this.trigger('error');
+
+ return;
+ };
+
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+
+
+ Player.prototype.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ };
+
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+
+
+ Player.prototype.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('useractive');
+ return;
+ }
+
+ // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('userinactive');
+ };
+
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+
+
+ Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress = void 0;
+ var lastMoveX = void 0;
+ var lastMoveY = void 0;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(mouseInProgress);
+ // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity();
+ // Stop the interval that maintains activity if the mouse/touch is down
+ this.clearInterval(mouseInProgress);
+ };
+
+ // Any mouse movement will be considered user activity
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+
+ // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity);
+
+ // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+ var inactivityTimeout = void 0;
+
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ }
+
+ // Reset the activity tracker
+ this.userActivity_ = false;
+
+ // If the user state was inactive, set the state to active
+ this.userActive(true);
+
+ // Clear any existing inactivity timeout to start the timer over
+ this.clearTimeout(inactivityTimeout);
+
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ }
+
+ // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ };
+
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+
+
+ Player.prototype.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+
+
+ Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+
+
+ Player.prototype.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ };
+
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+
+
+ Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ };
+
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ };
+
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+
+
+ Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {
+ var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ _ref3$track = _ref3.track,
+ track = _ref3$track === undefined ? arguments[0] : _ref3$track;
+
+ // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+
+
+ Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ };
+
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+
+
+ Player.prototype.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ };
+
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+
+
+ Player.prototype.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ };
+
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+
+
+ Player.prototype.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ };
+
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+
+
+ Player.prototype.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ };
+
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+
+
+ Player.prototype.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // deep merge tracks and null out player so no circular references
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ };
+
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+
+
+ Player.prototype.createModal = function createModal(content, options) {
+ var _this12 = this;
+
+ options = options || {};
+ options.content = content || '';
+
+ var modal = new ModalDialog(this, options);
+
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this12.removeChild(modal);
+ });
+
+ modal.open();
+ return modal;
+ };
+
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ }
+
+ // Check if data-setup attr exists.
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = safeParseTuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log$1.error(err);
+ }
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions);
+
+ // Get tag children settings
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i];
+ // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ };
+
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+
+
+ Player.prototype.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document.createElement('i');
+
+ // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||
+ // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+}(Component);
+
+/**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+/**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+/**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+/**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+/**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ }
+
+ // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+});
+
+/**
+ * Global player list
+ *
+ * @type {Object}
+ */
+Player.players = {};
+
+var navigator = window$1.navigator;
+
+/*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+
+ html5: {},
+ flash: {},
+
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+
+ // locales and their language translations
+ languages: {},
+
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.'
+};
+
+[
+/**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+'ended',
+/**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+'seeking',
+/**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+'seekable',
+/**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+'networkState',
+/**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+});
+
+TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {
+ return this.trigger(event);
+ };
+});
+
+/**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+/**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+/**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+Component.registerComponent('Player', Player);
+
+/**
+ * @file plugin.js
+ */
+
+/**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+var BASE_PLUGIN_NAME = 'plugin';
+
+/**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+var PLUGIN_CACHE_KEY = 'activePlugins_';
+
+/**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+var pluginStorage = {};
+
+/**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {boolean}
+ * Whether or not the plugin has been registered.
+ */
+var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+};
+
+/**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or undefined).
+ */
+var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+};
+
+/**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+};
+
+/**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {Boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+};
+
+/**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @returns {Function}
+ * A wrapper function for the given plugin.
+ */
+var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);
+
+ var instance = plugin.apply(this, arguments);
+
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });
+
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+
+ return basicPluginWrapper;
+};
+
+/**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @returns {Function}
+ */
+var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+
+ return function () {
+ triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();
+
+ // The plugin is replaced by a function that returns the current instance.
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+
+ return instance;
+ };
+};
+
+/**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+var Plugin = function () {
+
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ classCallCheck(this, Plugin);
+
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player;
+
+ // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+ evented(this);
+ delete this.trigger;
+
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name);
+
+ // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+ this.dispose = bind(this, this.dispose);
+
+ // If the player is disposed, dispose the plugin.
+ player.on('dispose', this.dispose);
+ }
+
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ Plugin.prototype.version = function version() {
+ return this.constructor.VERSION;
+ };
+
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @returns {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+
+
+ Plugin.prototype.getEventHash = function getEventHash() {
+ var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ };
+
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @returns {boolean}
+ * Whether or not default was prevented.
+ */
+
+
+ Plugin.prototype.trigger = function trigger$$1(event) {
+ var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ };
+
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+
+
+ Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};
+
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+
+
+ Plugin.prototype.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose);
+
+ // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null;
+
+ // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ };
+
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @returns {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ };
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @returns {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error('Illegal plugin name, "' + name + '", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');
+ }
+
+ if (pluginExists(name)) {
+ log$1.warn('A plugin named "' + name + '" already exists. You may want to avoid re-registering plugins!');
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error('Illegal plugin name, "' + name + '", cannot share a name with an existing player method!');
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error('Illegal plugin for "' + name + '", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');
+ }
+
+ pluginStorage[name] = plugin;
+
+ // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ };
+
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered.
+ */
+
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @returns {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+
+
+ Plugin.getPlugins = function getPlugins() {
+ var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);
+
+ var result = void 0;
+
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+
+ return result;
+ };
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {string}
+ * The plugin's version or an empty string.
+ */
+
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+}();
+
+/**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+Plugin.getPlugin = getPlugin;
+
+/**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+
+Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+/**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+};
+
+/**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+};
+
+/**
+ * @file extend.js
+ * @module extend
+ */
+
+/**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+};
+
+/**
+ * Function for subclassing using the same inheritance that
+ * videojs uses internally
+ *
+ * @static
+ * @const
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * The class to inherit to
+ *
+ * @return {Object}
+ * The new object with subClassMethods that inherited superClass.
+ */
+var extendFn = function extendFn(superClass) {
+ var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass);
+
+ // Extend subObj's prototype with functions and other properties from props
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+};
+
+/**
+ * @file video.js
+ * @module videojs
+ */
+
+/**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @returns {string}
+ * The string, without any leading `#`.
+ */
+var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+};
+
+/**
+ * Doubles as the main function for users to create a player instance and also
+ * the main library object.
+ * The `videojs` function can be used to initialize or retrieve a player.
+ *
+ * @param {string|Element} id
+ * Video element or video element ID
+ *
+ * @param {Object} [options]
+ * Optional options object for config/settings
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Optional ready callback
+ *
+ * @return {Player}
+ * A player instance
+ */
+function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log$1.warn('Player "' + id + '" is already initialised. Options will not be applied.');
+ }
+ if (ready) {
+ player.ready(ready);
+ }
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ }
+
+ if (!document.body.contains(el)) {
+ log$1.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log$1.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ });
+
+ // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+ var PlayerComponent = Component.getComponent('Player');
+
+ player = new PlayerComponent(el, options, ready);
+
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+
+ return player;
+}
+
+/**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ */
+videojs$1.hooks_ = {};
+
+/**
+ * Get a list of hooks for a specific lifecycle
+ * @function videojs.hooks
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+ return videojs$1.hooks_[type];
+};
+
+/**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+};
+
+/**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(undefined, arguments);
+ };
+
+ return wrapper;
+ }));
+};
+
+/**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+
+ return true;
+};
+
+// Add default styles
+if (window$1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style$1 = $('.vjs-styles-defaults');
+
+ if (!style$1) {
+ style$1 = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style$1, head.firstChild);
+ }
+ setTextContent(style$1, '\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ');
+ }
+}
+
+// Run Auto-load players
+// You have to wait at least once in case this script is loaded after your
+// video in the DOM (weird behavior only with minified version)
+autoSetupTimeout(1, videojs$1);
+
+/**
+ * Current software version. Follows semver.
+ *
+ * @type {string}
+ */
+videojs$1.VERSION = version;
+
+/**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+videojs$1.options = Player.prototype.options_;
+
+/**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+videojs$1.getPlayers = function () {
+ return Player.players;
+};
+
+/**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @returns {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag = void 0;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId;
+
+ // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+};
+
+/**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+videojs$1.getAllPlayers = function () {
+ return (
+
+ // Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+};
+
+/**
+ * Expose players object.
+ *
+ * @memberOf videojs
+ * @property {Object} players
+ */
+videojs$1.players = Player.players;
+
+/**
+ * Get a component class object by name
+ *
+ * @borrows Component.getComponent as videojs.getComponent
+ */
+videojs$1.getComponent = Component.getComponent;
+
+/**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+videojs$1.registerComponent = function (name$$1, comp) {
+ if (Tech.isTech(comp)) {
+ log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');
+ }
+
+ Component.registerComponent.call(Component, name$$1, comp);
+};
+
+/**
+ * Get a Tech class object by name
+ *
+ * @borrows Tech.getTech as videojs.getTech
+ */
+videojs$1.getTech = Tech.getTech;
+
+/**
+ * Register a Tech so it can referred to by name.
+ * This is used in the tech order for the player.
+ *
+ * @borrows Tech.registerTech as videojs.registerTech
+ */
+videojs$1.registerTech = Tech.registerTech;
+
+/**
+ * Register a middleware to a source type.
+ *
+ * @param {String} type A string representing a MIME type.
+ * @param {function(player):object} middleware A middleware factory that takes a player.
+ */
+videojs$1.use = use;
+
+/**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @memberOf {videojs}
+ * @property {object} middleware.TERMINATOR
+ */
+Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+});
+
+Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+});
+
+/**
+ * A suite of browser and device tests from {@link browser}.
+ *
+ * @type {Object}
+ * @private
+ */
+videojs$1.browser = browser;
+
+/**
+ * Whether or not the browser supports touch events. Included for backward
+ * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`
+ * instead going forward.
+ *
+ * @deprecated since version 5.0
+ * @type {boolean}
+ */
+videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+
+/**
+ * Subclass an existing class
+ * Mimics ES6 subclassing with the `extend` keyword
+ *
+ * @borrows extend:extendFn as videojs.extend
+ */
+videojs$1.extend = extendFn;
+
+/**
+ * Merge two options objects recursively
+ * Performs a deep merge like lodash.merge but **only merges plain objects**
+ * (not arrays, elements, anything else)
+ * Other values will be copied directly from the second object.
+ *
+ * @borrows merge-options:mergeOptions as videojs.mergeOptions
+ */
+videojs$1.mergeOptions = mergeOptions;
+
+/**
+ * Change the context (this) of a function
+ *
+ * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native
+ * `function() {}.bind(newContext);` instead of this.
+ *
+ * @borrows fn:bind as videojs.bind
+ */
+videojs$1.bind = bind;
+
+/**
+ * Register a Video.js plugin.
+ *
+ * @borrows plugin:registerPlugin as videojs.registerPlugin
+ * @method registerPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+videojs$1.registerPlugin = Plugin.registerPlugin;
+
+/**
+ * Deregister a Video.js plugin.
+ *
+ * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin
+ * @method deregisterPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered. Must be a string and
+ * must match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ */
+videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+
+/**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated
+ * videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+videojs$1.plugin = function (name$$1, plugin) {
+ log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name$$1, plugin);
+};
+
+/**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+videojs$1.getPlugins = Plugin.getPlugins;
+
+/**
+ * Gets a plugin by name if it exists.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+videojs$1.getPlugin = Plugin.getPlugin;
+
+/**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+videojs$1.getPluginVersion = Plugin.getPluginVersion;
+
+/**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+
+ return videojs$1.options.languages[code];
+};
+
+/**
+ * Log messages
+ *
+ * @borrows log:log as videojs.log
+ */
+videojs$1.log = log$1;
+
+/**
+ * Creates an emulated TimeRange object.
+ *
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRange
+ */
+/**
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges
+ */
+videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+
+/**
+ * Format seconds as a time string, H:MM:SS or M:SS
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide
+ *
+ * @borrows format-time:formatTime as videojs.formatTime
+ */
+videojs$1.formatTime = formatTime;
+
+/**
+ * Replaces format-time with a custom implementation, to be used in place of the default.
+ *
+ * @borrows format-time:setFormatTime as videojs.setFormatTime
+ *
+ * @method setFormatTime
+ *
+ * @param {Function} customFn
+ * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.
+ * Passed fn should return a string.
+ */
+videojs$1.setFormatTime = setFormatTime;
+
+/**
+ * Resets format-time to the default implementation.
+ *
+ * @borrows format-time:resetFormatTime as videojs.resetFormatTime
+ *
+ * @method resetFormatTime
+ */
+videojs$1.resetFormatTime = resetFormatTime;
+
+/**
+ * Resolve and parse the elements of a URL
+ *
+ * @borrows url:parseUrl as videojs.parseUrl
+ *
+ */
+videojs$1.parseUrl = parseUrl;
+
+/**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @borrows url:isCrossOrigin as videojs.isCrossOrigin
+ */
+videojs$1.isCrossOrigin = isCrossOrigin;
+
+/**
+ * Event target class.
+ *
+ * @borrows EventTarget as videojs.EventTarget
+ */
+videojs$1.EventTarget = EventTarget;
+
+/**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @borrows events:on as videojs.on
+ */
+videojs$1.on = on;
+
+/**
+ * Trigger a listener only once for an event
+ *
+ * @borrows events:one as videojs.one
+ */
+videojs$1.one = one;
+
+/**
+ * Removes event listeners from an element
+ *
+ * @borrows events:off as videojs.off
+ */
+videojs$1.off = off;
+
+/**
+ * Trigger an event for an element
+ *
+ * @borrows events:trigger as videojs.trigger
+ */
+videojs$1.trigger = trigger;
+
+/**
+ * A cross-browser XMLHttpRequest wrapper. Here's a simple example:
+ *
+ * @param {Object} options
+ * settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+videojs$1.xhr = xhr;
+
+/**
+ * TextTrack class
+ *
+ * @borrows TextTrack as videojs.TextTrack
+ */
+videojs$1.TextTrack = TextTrack;
+
+/**
+ * export the AudioTrack class so that source handlers can create
+ * AudioTracks and then add them to the players AudioTrackList
+ *
+ * @borrows AudioTrack as videojs.AudioTrack
+ */
+videojs$1.AudioTrack = AudioTrack;
+
+/**
+ * export the VideoTrack class so that source handlers can create
+ * VideoTracks and then add them to the players VideoTrackList
+ *
+ * @borrows VideoTrack as videojs.VideoTrack
+ */
+videojs$1.VideoTrack = VideoTrack;
+
+/**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @borrows dom:isEl as videojs.isEl
+ * @deprecated Use videojs.dom.isEl() instead
+ */
+
+/**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @borrows dom:isTextNode as videojs.isTextNode
+ * @deprecated Use videojs.dom.isTextNode() instead
+ */
+
+/**
+ * Creates an element and applies properties.
+ *
+ * @borrows dom:createEl as videojs.createEl
+ * @deprecated Use videojs.dom.createEl() instead
+ */
+
+/**
+ * Check if an element has a CSS class
+ *
+ * @borrows dom:hasElClass as videojs.hasClass
+ * @deprecated Use videojs.dom.hasClass() instead
+ */
+
+/**
+ * Add a CSS class name to an element
+ *
+ * @borrows dom:addElClass as videojs.addClass
+ * @deprecated Use videojs.dom.addClass() instead
+ */
+
+/**
+ * Remove a CSS class name from an element
+ *
+ * @borrows dom:removeElClass as videojs.removeClass
+ * @deprecated Use videojs.dom.removeClass() instead
+ */
+
+/**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @borrows dom:toggleElClass as videojs.toggleClass
+ * @deprecated Use videojs.dom.toggleClass() instead
+ */
+
+/**
+ * Apply attributes to an HTML element.
+ *
+ * @borrows dom:setElAttributes as videojs.setAttribute
+ * @deprecated Use videojs.dom.setAttributes() instead
+ */
+
+/**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @borrows dom:getElAttributes as videojs.getAttributes
+ * @deprecated Use videojs.dom.getAttributes() instead
+ */
+
+/**
+ * Empties the contents of an element.
+ *
+ * @borrows dom:emptyEl as videojs.emptyEl
+ * @deprecated Use videojs.dom.emptyEl() instead
+ */
+
+/**
+ * Normalizes and appends content to an element.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:appendContents as videojs.appendContet
+ * @deprecated Use videojs.dom.appendContent() instead
+ */
+
+/**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:insertContent as videojs.insertContent
+ * @deprecated Use videojs.dom.insertContent() instead
+ */
+['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');
+ return Dom[k].apply(null, arguments);
+ };
+});
+
+/**
+ * A safe getComputedStyle.
+ *
+ * This is because in Firefox, if the player is loaded in an iframe with `display:none`,
+ * then `getComputedStyle` returns `null`, so, we do a null-check to make sure
+ * that the player doesn't break in these cases.
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.
+ *
+ * @borrows computed-style:computedStyle as videojs.computedStyle
+ */
+videojs$1.computedStyle = computedStyle;
+
+/**
+ * Export the Dom utilities for use in external plugins
+ * and Tech's
+ */
+videojs$1.dom = Dom;
+
+/**
+ * Export the Url utilities for use in external plugins
+ * and Tech's
+ */
+videojs$1.url = Url;
+
+/**
+ * @videojs/http-streaming
+ * @version 1.2.6
+ * @copyright 2018 Brightcove, Inc
+ * @license Apache-2.0
+ */
+
+/**
+ * @file resolve-url.js
+ */
+
+var resolveUrl = function resolveUrl(baseURL, relativeURL) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeURL)) {
+ return relativeURL;
+ }
+
+ // if the base URL is relative then combine with the current location
+ if (!/\/\//i.test(baseURL)) {
+ baseURL = URLToolkit.buildAbsoluteURL(window$1.location.href, baseURL);
+ }
+
+ return URLToolkit.buildAbsoluteURL(baseURL, relativeURL);
+};
+
+var classCallCheck$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+};
+
+var createClass$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+}();
+
+var get$2 = function get$$1(object, property, receiver) {
+ if (object === null) object = Function.prototype;
+ var desc = Object.getOwnPropertyDescriptor(object, property);
+
+ if (desc === undefined) {
+ var parent = Object.getPrototypeOf(object);
+
+ if (parent === null) {
+ return undefined;
+ } else {
+ return get$$1(parent, property, receiver);
+ }
+ } else if ("value" in desc) {
+ return desc.value;
+ } else {
+ var getter = desc.get;
+
+ if (getter === undefined) {
+ return undefined;
+ }
+
+ return getter.call(receiver);
+ }
+};
+
+var inherits$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+var possibleConstructorReturn$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+};
+
+var slicedToArray$1 = function () {
+ function sliceIterator(arr, i) {
+ var _arr = [];
+ var _n = true;
+ var _d = false;
+ var _e = undefined;
+
+ try {
+ for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+ _arr.push(_s.value);
+
+ if (i && _arr.length === i) break;
+ }
+ } catch (err) {
+ _d = true;
+ _e = err;
+ } finally {
+ try {
+ if (!_n && _i["return"]) _i["return"]();
+ } finally {
+ if (_d) throw _e;
+ }
+ }
+
+ return _arr;
+ }
+
+ return function (arr, i) {
+ if (Array.isArray(arr)) {
+ return arr;
+ } else if (Symbol.iterator in Object(arr)) {
+ return sliceIterator(arr, i);
+ } else {
+ throw new TypeError("Invalid attempt to destructure non-iterable instance");
+ }
+ };
+}();
+
+/**
+ * @file playlist-loader.js
+ *
+ * A state machine that manages the loading, caching, and updating of
+ * M3U8 playlists.
+ *
+ */
+
+var mergeOptions$1 = videojs$1.mergeOptions,
+ EventTarget$1 = videojs$1.EventTarget,
+ log$2 = videojs$1.log;
+
+/**
+ * Loops through all supported media groups in master and calls the provided
+ * callback for each group
+ *
+ * @param {Object} master
+ * The parsed master manifest object
+ * @param {Function} callback
+ * Callback to call for each media group
+ */
+
+var forEachMediaGroup = function forEachMediaGroup(master, callback) {
+ ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {
+ for (var groupKey in master.mediaGroups[mediaType]) {
+ for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
+ var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+
+ callback(mediaProperties, mediaType, groupKey, labelKey);
+ }
+ }
+ });
+};
+
+/**
+ * Returns a new array of segments that is the result of merging
+ * properties from an older list of segments onto an updated
+ * list. No properties on the updated playlist will be overridden.
+ *
+ * @param {Array} original the outdated list of segments
+ * @param {Array} update the updated list of segments
+ * @param {Number=} offset the index of the first update
+ * segment in the original segment list. For non-live playlists,
+ * this should always be zero and does not need to be
+ * specified. For live playlists, it should be the difference
+ * between the media sequence numbers in the original and updated
+ * playlists.
+ * @return a list of merged segment objects
+ */
+var updateSegments = function updateSegments(original, update, offset) {
+ var result = update.slice();
+
+ offset = offset || 0;
+ var length = Math.min(original.length, update.length + offset);
+
+ for (var i = offset; i < length; i++) {
+ result[i - offset] = mergeOptions$1(original[i], result[i - offset]);
+ }
+ return result;
+};
+
+var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {
+ if (!segment.resolvedUri) {
+ segment.resolvedUri = resolveUrl(baseUri, segment.uri);
+ }
+ if (segment.key && !segment.key.resolvedUri) {
+ segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);
+ }
+ if (segment.map && !segment.map.resolvedUri) {
+ segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);
+ }
+};
+
+/**
+ * Returns a new master playlist that is the result of merging an
+ * updated media playlist into the original version. If the
+ * updated media playlist does not match any of the playlist
+ * entries in the original master playlist, null is returned.
+ *
+ * @param {Object} master a parsed master M3U8 object
+ * @param {Object} media a parsed media M3U8 object
+ * @return {Object} a new object that represents the original
+ * master playlist with the updated media playlist merged in, or
+ * null if the merge produced no change.
+ */
+var updateMaster = function updateMaster(master, media) {
+ var result = mergeOptions$1(master, {});
+ var playlist = result.playlists[media.uri];
+
+ if (!playlist) {
+ return null;
+ }
+
+ // consider the playlist unchanged if the number of segments is equal and the media
+ // sequence number is unchanged
+ if (playlist.segments && media.segments && playlist.segments.length === media.segments.length && playlist.mediaSequence === media.mediaSequence) {
+ return null;
+ }
+
+ var mergedPlaylist = mergeOptions$1(playlist, media);
+
+ // if the update could overlap existing segment information, merge the two segment lists
+ if (playlist.segments) {
+ mergedPlaylist.segments = updateSegments(playlist.segments, media.segments, media.mediaSequence - playlist.mediaSequence);
+ }
+
+ // resolve any segment URIs to prevent us from having to do it later
+ mergedPlaylist.segments.forEach(function (segment) {
+ resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
+ });
+
+ // TODO Right now in the playlists array there are two references to each playlist, one
+ // that is referenced by index, and one by URI. The index reference may no longer be
+ // necessary.
+ for (var i = 0; i < result.playlists.length; i++) {
+ if (result.playlists[i].uri === media.uri) {
+ result.playlists[i] = mergedPlaylist;
+ }
+ }
+ result.playlists[media.uri] = mergedPlaylist;
+
+ return result;
+};
+
+var setupMediaPlaylists = function setupMediaPlaylists(master) {
+ // setup by-URI lookups and resolve media playlist URIs
+ var i = master.playlists.length;
+
+ while (i--) {
+ var playlist = master.playlists[i];
+
+ master.playlists[playlist.uri] = playlist;
+ playlist.resolvedUri = resolveUrl(master.uri, playlist.uri);
+ playlist.id = i;
+
+ if (!playlist.attributes) {
+ // Although the spec states an #EXT-X-STREAM-INF tag MUST have a
+ // BANDWIDTH attribute, we can play the stream without it. This means a poorly
+ // formatted master playlist may not have an attribute list. An attributes
+ // property is added here to prevent undefined references when we encounter
+ // this scenario.
+ playlist.attributes = {};
+
+ log$2.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
+ }
+ }
+};
+
+var resolveMediaGroupUris = function resolveMediaGroupUris(master) {
+ forEachMediaGroup(master, function (properties) {
+ if (properties.uri) {
+ properties.resolvedUri = resolveUrl(master.uri, properties.uri);
+ }
+ });
+};
+
+/**
+ * Calculates the time to wait before refreshing a live playlist
+ *
+ * @param {Object} media
+ * The current media
+ * @param {Boolean} update
+ * True if there were any updates from the last refresh, false otherwise
+ * @return {Number}
+ * The time in ms to wait before refreshing the live playlist
+ */
+var refreshDelay = function refreshDelay(media, update) {
+ var lastSegment = media.segments[media.segments.length - 1];
+ var delay = void 0;
+
+ if (update && lastSegment && lastSegment.duration) {
+ delay = lastSegment.duration * 1000;
+ } else {
+ // if the playlist is unchanged since the last reload or last segment duration
+ // cannot be determined, try again after half the target duration
+ delay = (media.targetDuration || 10) * 500;
+ }
+ return delay;
+};
+
+/**
+ * Load a playlist from a remote location
+ *
+ * @class PlaylistLoader
+ * @extends Stream
+ * @param {String} srcUrl the url to start with
+ * @param {Boolean} withCredentials the withCredentials xhr option
+ * @constructor
+ */
+
+var PlaylistLoader = function (_EventTarget) {
+ inherits$1(PlaylistLoader, _EventTarget);
+
+ function PlaylistLoader(srcUrl, hls, withCredentials) {
+ classCallCheck$1(this, PlaylistLoader);
+
+ var _this = possibleConstructorReturn$1(this, (PlaylistLoader.__proto__ || Object.getPrototypeOf(PlaylistLoader)).call(this));
+
+ _this.srcUrl = srcUrl;
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!_this.srcUrl) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ // initialize the loader state
+ _this.state = 'HAVE_NOTHING';
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ if (_this.state !== 'HAVE_METADATA') {
+ // only refresh the media playlist if no other activity is going on
+ return;
+ }
+
+ _this.state = 'HAVE_CURRENT_METADATA';
+
+ _this.request = _this.hls_.xhr({
+ uri: resolveUrl(_this.master.uri, _this.media().uri),
+ withCredentials: _this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this.request) {
+ return;
+ }
+
+ if (error) {
+ return _this.playlistRequestError(_this.request, _this.media().uri, 'HAVE_METADATA');
+ }
+
+ _this.haveMetadata(_this.request, _this.media().uri);
+ });
+ });
+ return _this;
+ }
+
+ createClass$1(PlaylistLoader, [{
+ key: 'playlistRequestError',
+ value: function playlistRequestError(xhr$$1, url, startingState) {
+ // any in-flight request is now finished
+ this.request = null;
+
+ if (startingState) {
+ this.state = startingState;
+ }
+
+ this.error = {
+ playlist: this.master.playlists[url],
+ status: xhr$$1.status,
+ message: 'HLS playlist request error at URL: ' + url,
+ responseText: xhr$$1.responseText,
+ code: xhr$$1.status >= 500 ? 4 : 2
+ };
+
+ this.trigger('error');
+ }
+
+ // update the playlist loader's state in response to a new or
+ // updated playlist.
+
+ }, {
+ key: 'haveMetadata',
+ value: function haveMetadata(xhr$$1, url) {
+ var _this2 = this;
+
+ // any in-flight request is now finished
+ this.request = null;
+ this.state = 'HAVE_METADATA';
+
+ var parser = new Parser();
+
+ parser.push(xhr$$1.responseText);
+ parser.end();
+ parser.manifest.uri = url;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ parser.manifest.attributes = parser.manifest.attributes || {};
+
+ // merge this playlist into the master
+ var update = updateMaster(this.master, parser.manifest);
+
+ this.targetDuration = parser.manifest.targetDuration;
+
+ if (update) {
+ this.master = update;
+ this.media_ = this.master.playlists[parser.manifest.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ // refresh live playlists after a target duration passes
+ if (!this.media().endList) {
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ _this2.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!update));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Abort any outstanding work and clean up.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+
+ /**
+ * When called without any arguments, returns the currently
+ * active media playlist. When called with a single argument,
+ * triggers the playlist loader to asynchronously switch to the
+ * specified media playlist. Calling this method while the
+ * loader is in the HAVE_NOTHING causes an error to be emitted
+ * but otherwise has no effect.
+ *
+ * @param {Object=} playlist the parsed media playlist
+ * object to switch to
+ * @return {Playlist} the current loaded media
+ */
+
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ var _this3 = this;
+
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been
+ // specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ // switch to fully loaded playlists immediately
+ if (this.master.playlists[playlist.uri].endList) {
+ // abort outstanding playlist requests
+ if (this.request) {
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+ this.state = 'HAVE_METADATA';
+ this.media_ = playlist;
+
+ // trigger media change if the active media has been updated
+ if (mediaChange) {
+ this.trigger('mediachanging');
+ this.trigger('mediachange');
+ }
+ return;
+ }
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ this.state = 'SWITCHING_MEDIA';
+
+ // there is already an outstanding playlist request
+ if (this.request) {
+ if (resolveUrl(this.master.uri, playlist.uri) === this.request.url) {
+ // requesting to switch to the same playlist multiple times
+ // has no effect after the first
+ return;
+ }
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+
+ // request the new playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl(this.master.uri, playlist.uri),
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ return _this3.playlistRequestError(_this3.request, playlist.uri, startingState);
+ }
+
+ _this3.haveMetadata(req, playlist.uri);
+
+ // fire loadedmetadata the first time a media playlist is loaded
+ if (startingState === 'HAVE_MASTER') {
+ _this3.trigger('loadedmetadata');
+ } else {
+ _this3.trigger('mediachange');
+ }
+ });
+ }
+
+ /**
+ * pause loading of the playlist
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ // Need to restore state now that no activity is happening
+ if (this.state === 'SWITCHING_MEDIA') {
+ // if the loader was in the process of switching media, it should either return to
+ // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media
+ // playlist yet. This is determined by the existence of loader.media_
+ if (this.media_) {
+ this.state = 'HAVE_METADATA';
+ } else {
+ this.state = 'HAVE_MASTER';
+ }
+ } else if (this.state === 'HAVE_CURRENT_METADATA') {
+ this.state = 'HAVE_METADATA';
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'load',
+ value: function load(isFinalRendition) {
+ var _this4 = this;
+
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+
+ var media = this.media();
+
+ if (isFinalRendition) {
+ var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ return _this4.load();
+ }, delay);
+ return;
+ }
+
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ if (media && !media.endList) {
+ this.trigger('mediaupdatetimeout');
+ } else {
+ this.trigger('loadedplaylist');
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this5 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'HLS playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ var parser = new Parser();
+
+ parser.push(req.responseText);
+ parser.end();
+
+ _this5.state = 'HAVE_MASTER';
+
+ parser.manifest.uri = _this5.srcUrl;
+
+ // loaded a master playlist
+ if (parser.manifest.playlists) {
+ _this5.master = parser.manifest;
+
+ setupMediaPlaylists(_this5.master);
+ resolveMediaGroupUris(_this5.master);
+
+ _this5.trigger('loadedplaylist');
+ if (!_this5.request) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ _this5.media(parser.manifest.playlists[0]);
+ }
+ return;
+ }
+
+ // loaded a media playlist
+ // infer a master playlist if none was previously requested
+ _this5.master = {
+ mediaGroups: {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ },
+ uri: window$1.location.href,
+ playlists: [{
+ uri: _this5.srcUrl,
+ id: 0
+ }]
+ };
+ _this5.master.playlists[_this5.srcUrl] = _this5.master.playlists[0];
+ _this5.master.playlists[0].resolvedUri = _this5.srcUrl;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ _this5.master.playlists[0].attributes = _this5.master.playlists[0].attributes || {};
+ _this5.haveMetadata(req, _this5.srcUrl);
+ return _this5.trigger('loadedmetadata');
+ });
+ }
+ }]);
+ return PlaylistLoader;
+}(EventTarget$1);
+
+/**
+ * @file playlist.js
+ *
+ * Playlist related utilities.
+ */
+
+var createTimeRange = videojs$1.createTimeRange;
+
+/**
+ * walk backward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+
+var backwardDuration = function backwardDuration(playlist, endSequence) {
+ var result = 0;
+ var i = endSequence - playlist.mediaSequence;
+ // if a start time is available for segment immediately following
+ // the interval, use it
+ var segment = playlist.segments[i];
+
+ // Walk backward until we find the latest segment with timeline
+ // information that is earlier than endSequence
+ if (segment) {
+ if (typeof segment.start !== 'undefined') {
+ return { result: segment.start, precise: true };
+ }
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - segment.duration,
+ precise: true
+ };
+ }
+ }
+ while (i--) {
+ segment = playlist.segments[i];
+ if (typeof segment.end !== 'undefined') {
+ return { result: result + segment.end, precise: true };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.start !== 'undefined') {
+ return { result: result + segment.start, precise: true };
+ }
+ }
+ return { result: result, precise: false };
+};
+
+/**
+ * walk forward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+var forwardDuration = function forwardDuration(playlist, endSequence) {
+ var result = 0;
+ var segment = void 0;
+ var i = endSequence - playlist.mediaSequence;
+ // Walk forward until we find the earliest segment with timeline
+ // information
+
+ for (; i < playlist.segments.length; i++) {
+ segment = playlist.segments[i];
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: segment.start - result,
+ precise: true
+ };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - result,
+ precise: true
+ };
+ }
+ }
+ // indicate we didn't find a useful duration estimate
+ return { result: -1, precise: false };
+};
+
+/**
+ * Calculate the media duration from the segments associated with a
+ * playlist. The duration of a subinterval of the available segments
+ * may be calculated by specifying an end index.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper boundary
+ * for the playlist. Defaults to playlist length.
+ * @param {Number} expired the amount of time that has dropped
+ * off the front of the playlist in a live scenario
+ * @return {Number} the duration between the first available segment
+ * and end index.
+ */
+var intervalDuration = function intervalDuration(playlist, endSequence, expired) {
+ var backward = void 0;
+ var forward = void 0;
+
+ if (typeof endSequence === 'undefined') {
+ endSequence = playlist.mediaSequence + playlist.segments.length;
+ }
+
+ if (endSequence < playlist.mediaSequence) {
+ return 0;
+ }
+
+ // do a backward walk to estimate the duration
+ backward = backwardDuration(playlist, endSequence);
+ if (backward.precise) {
+ // if we were able to base our duration estimate on timing
+ // information provided directly from the Media Source, return
+ // it
+ return backward.result;
+ }
+
+ // walk forward to see if a precise duration estimate can be made
+ // that way
+ forward = forwardDuration(playlist, endSequence);
+ if (forward.precise) {
+ // we found a segment that has been buffered and so it's
+ // position is known precisely
+ return forward.result;
+ }
+
+ // return the less-precise, playlist-based duration estimate
+ return backward.result + expired;
+};
+
+/**
+ * Calculates the duration of a playlist. If a start and end index
+ * are specified, the duration will be for the subset of the media
+ * timeline between those two indices. The total duration for live
+ * playlists is always Infinity.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper
+ * boundary for the playlist. Defaults to the playlist media
+ * sequence number plus its length.
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {Number} the duration between the start index and end
+ * index.
+ */
+var duration = function duration(playlist, endSequence, expired) {
+ if (!playlist) {
+ return 0;
+ }
+
+ if (typeof expired !== 'number') {
+ expired = 0;
+ }
+
+ // if a slice of the total duration is not requested, use
+ // playlist-level duration indicators when they're present
+ if (typeof endSequence === 'undefined') {
+ // if present, use the duration specified in the playlist
+ if (playlist.totalDuration) {
+ return playlist.totalDuration;
+ }
+
+ // duration should be Infinity for live playlists
+ if (!playlist.endList) {
+ return window$1.Infinity;
+ }
+ }
+
+ // calculate the total duration based on the segment durations
+ return intervalDuration(playlist, endSequence, expired);
+};
+
+/**
+ * Calculate the time between two indexes in the current playlist
+ * neight the start- nor the end-index need to be within the current
+ * playlist in which case, the targetDuration of the playlist is used
+ * to approximate the durations of the segments
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number} startIndex
+ * @param {Number} endIndex
+ * @return {Number} the number of seconds between startIndex and endIndex
+ */
+var sumDurations = function sumDurations(playlist, startIndex, endIndex) {
+ var durations = 0;
+
+ if (startIndex > endIndex) {
+ var _ref = [endIndex, startIndex];
+ startIndex = _ref[0];
+ endIndex = _ref[1];
+ }
+
+ if (startIndex < 0) {
+ for (var i = startIndex; i < Math.min(0, endIndex); i++) {
+ durations += playlist.targetDuration;
+ }
+ startIndex = 0;
+ }
+
+ for (var _i = startIndex; _i < endIndex; _i++) {
+ durations += playlist.segments[_i].duration;
+ }
+
+ return durations;
+};
+
+/**
+ * Determines the media index of the segment corresponding to the safe edge of the live
+ * window which is the duration of the last segment plus 2 target durations from the end
+ * of the playlist.
+ *
+ * @param {Object} playlist
+ * a media playlist object
+ * @return {Number}
+ * The media index of the segment at the safe live point. 0 if there is no "safe"
+ * point.
+ * @function safeLiveIndex
+ */
+var safeLiveIndex = function safeLiveIndex(playlist) {
+ if (!playlist.segments.length) {
+ return 0;
+ }
+
+ var i = playlist.segments.length - 1;
+ var distanceFromEnd = playlist.segments[i].duration || playlist.targetDuration;
+ var safeDistance = distanceFromEnd + playlist.targetDuration * 2;
+
+ while (i--) {
+ distanceFromEnd += playlist.segments[i].duration;
+
+ if (distanceFromEnd >= safeDistance) {
+ break;
+ }
+ }
+
+ return Math.max(0, i);
+};
+
+/**
+ * Calculates the playlist end time
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @param {Boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
+ * playlist end calculation should consider the safe live end
+ * (truncate the playlist end by three segments). This is normally
+ * used for calculating the end of the playlist's seekable range.
+ * @returns {Number} the end time of playlist
+ * @function playlistEnd
+ */
+var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+ if (playlist.endList) {
+ return duration(playlist);
+ }
+
+ if (expired === null) {
+ return null;
+ }
+
+ expired = expired || 0;
+
+ var endSequence = useSafeLiveEnd ? safeLiveIndex(playlist) : playlist.segments.length;
+
+ return intervalDuration(playlist, playlist.mediaSequence + endSequence, expired);
+};
+
+/**
+ * Calculates the interval of time that is currently seekable in a
+ * playlist. The returned time ranges are relative to the earliest
+ * moment in the specified playlist that is still available. A full
+ * seekable implementation for live streams would need to offset
+ * these values by the duration of content that has expired from the
+ * stream.
+ *
+ * @param {Object} playlist a media playlist object
+ * dropped off the front of the playlist in a live scenario
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {TimeRanges} the periods of time that are valid targets
+ * for seeking
+ */
+var seekable = function seekable(playlist, expired) {
+ var useSafeLiveEnd = true;
+ var seekableStart = expired || 0;
+ var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd);
+
+ if (seekableEnd === null) {
+ return createTimeRange();
+ }
+ return createTimeRange(seekableStart, seekableEnd);
+};
+
+var isWholeNumber = function isWholeNumber(num) {
+ return num - Math.floor(num) === 0;
+};
+
+var roundSignificantDigit = function roundSignificantDigit(increment, num) {
+ // If we have a whole number, just add 1 to it
+ if (isWholeNumber(num)) {
+ return num + increment * 0.1;
+ }
+
+ var numDecimalDigits = num.toString().split('.')[1].length;
+
+ for (var i = 1; i <= numDecimalDigits; i++) {
+ var scale = Math.pow(10, i);
+ var temp = num * scale;
+
+ if (isWholeNumber(temp) || i === numDecimalDigits) {
+ return (temp + increment) / scale;
+ }
+ }
+};
+
+var ceilLeastSignificantDigit = roundSignificantDigit.bind(null, 1);
+var floorLeastSignificantDigit = roundSignificantDigit.bind(null, -1);
+
+/**
+ * Determine the index and estimated starting time of the segment that
+ * contains a specified playback position in a media playlist.
+ *
+ * @param {Object} playlist the media playlist to query
+ * @param {Number} currentTime The number of seconds since the earliest
+ * possible position to determine the containing segment for
+ * @param {Number} startIndex
+ * @param {Number} startTime
+ * @return {Object}
+ */
+var getMediaInfoForTime = function getMediaInfoForTime(playlist, currentTime, startIndex, startTime) {
+ var i = void 0;
+ var segment = void 0;
+ var numSegments = playlist.segments.length;
+
+ var time = currentTime - startTime;
+
+ if (time < 0) {
+ // Walk backward from startIndex in the playlist, adding durations
+ // until we find a segment that contains `time` and return it
+ if (startIndex > 0) {
+ for (i = startIndex - 1; i >= 0; i--) {
+ segment = playlist.segments[i];
+ time += floorLeastSignificantDigit(segment.duration);
+ if (time > 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime - sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+ }
+ // We were unable to find a good segment within the playlist
+ // so select the first segment
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+
+ // When startIndex is negative, we first walk forward to first segment
+ // adding target durations. If we "run out of time" before getting to
+ // the first segment, return the first segment
+ if (startIndex < 0) {
+ for (i = startIndex; i < 0; i++) {
+ time -= playlist.targetDuration;
+ if (time < 0) {
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+ }
+ startIndex = 0;
+ }
+
+ // Walk forward from startIndex in the playlist, subtracting durations
+ // until we find a segment that contains `time` and return it
+ for (i = startIndex; i < numSegments; i++) {
+ segment = playlist.segments[i];
+ time -= ceilLeastSignificantDigit(segment.duration);
+ if (time < 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime + sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+
+ // We are out of possible candidates so load the last one...
+ return {
+ mediaIndex: numSegments - 1,
+ startTime: currentTime
+ };
+};
+
+/**
+ * Check whether the playlist is blacklisted or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is blacklisted or not
+ * @function isBlacklisted
+ */
+var isBlacklisted = function isBlacklisted(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil > Date.now();
+};
+
+/**
+ * Check whether the playlist is compatible with current playback configuration or has
+ * been blacklisted permanently for being incompatible.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is incompatible or not
+ * @function isIncompatible
+ */
+var isIncompatible = function isIncompatible(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil === Infinity;
+};
+
+/**
+ * Check whether the playlist is enabled or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is enabled or not
+ * @function isEnabled
+ */
+var isEnabled = function isEnabled(playlist) {
+ var blacklisted = isBlacklisted(playlist);
+
+ return !playlist.disabled && !blacklisted;
+};
+
+/**
+ * Check whether the playlist has been manually disabled through the representations api.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is disabled manually or not
+ * @function isDisabled
+ */
+var isDisabled = function isDisabled(playlist) {
+ return playlist.disabled;
+};
+
+/**
+ * Returns whether the current playlist is an AES encrypted HLS stream
+ *
+ * @return {Boolean} true if it's an AES encrypted HLS stream
+ */
+var isAes = function isAes(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].key) {
+ return true;
+ }
+ }
+ return false;
+};
+
+/**
+ * Returns whether the current playlist contains fMP4
+ *
+ * @return {Boolean} true if the playlist contains fMP4
+ */
+var isFmp4 = function isFmp4(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].map) {
+ return true;
+ }
+ }
+ return false;
+};
+
+/**
+ * Checks if the playlist has a value for the specified attribute
+ *
+ * @param {String} attr
+ * Attribute to check for
+ * @param {Object} playlist
+ * The media playlist object
+ * @return {Boolean}
+ * Whether the playlist contains a value for the attribute or not
+ * @function hasAttribute
+ */
+var hasAttribute = function hasAttribute(attr, playlist) {
+ return playlist.attributes && playlist.attributes[attr];
+};
+
+/**
+ * Estimates the time required to complete a segment download from the specified playlist
+ *
+ * @param {Number} segmentDuration
+ * Duration of requested segment
+ * @param {Number} bandwidth
+ * Current measured bandwidth of the player
+ * @param {Object} playlist
+ * The media playlist object
+ * @param {Number=} bytesReceived
+ * Number of bytes already received for the request. Defaults to 0
+ * @return {Number|NaN}
+ * The estimated time to request the segment. NaN if bandwidth information for
+ * the given playlist is unavailable
+ * @function estimateSegmentRequestTime
+ */
+var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist) {
+ var bytesReceived = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
+
+ if (!hasAttribute('BANDWIDTH', playlist)) {
+ return NaN;
+ }
+
+ var size = segmentDuration * playlist.attributes.BANDWIDTH;
+
+ return (size - bytesReceived * 8) / bandwidth;
+};
+
+/*
+ * Returns whether the current playlist is the lowest rendition
+ *
+ * @return {Boolean} true if on lowest rendition
+ */
+var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {
+ if (master.playlists.length === 1) {
+ return true;
+ }
+
+ var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
+
+ return master.playlists.filter(function (playlist) {
+ if (!isEnabled(playlist)) {
+ return false;
+ }
+
+ return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
+ }).length === 0;
+};
+
+// exports
+var Playlist = {
+ duration: duration,
+ seekable: seekable,
+ safeLiveIndex: safeLiveIndex,
+ getMediaInfoForTime: getMediaInfoForTime,
+ isEnabled: isEnabled,
+ isDisabled: isDisabled,
+ isBlacklisted: isBlacklisted,
+ isIncompatible: isIncompatible,
+ playlistEnd: playlistEnd,
+ isAes: isAes,
+ isFmp4: isFmp4,
+ hasAttribute: hasAttribute,
+ estimateSegmentRequestTime: estimateSegmentRequestTime,
+ isLowestEnabledRendition: isLowestEnabledRendition
+};
+
+/**
+ * @file xhr.js
+ */
+
+var videojsXHR = videojs$1.xhr,
+ mergeOptions$1$1 = videojs$1.mergeOptions;
+
+var xhrFactory = function xhrFactory() {
+ var xhr$$1 = function XhrFunction(options, callback) {
+ // Add a default timeout for all hls requests
+ options = mergeOptions$1$1({
+ timeout: 45e3
+ }, options);
+
+ // Allow an optional user-specified function to modify the option
+ // object before we construct the xhr request
+ var beforeRequest = XhrFunction.beforeRequest || videojs$1.Hls.xhr.beforeRequest;
+
+ if (beforeRequest && typeof beforeRequest === 'function') {
+ var newOptions = beforeRequest(options);
+
+ if (newOptions) {
+ options = newOptions;
+ }
+ }
+
+ var request = videojsXHR(options, function (error, response) {
+ var reqResponse = request.response;
+
+ if (!error && reqResponse) {
+ request.responseTime = Date.now();
+ request.roundTripTime = request.responseTime - request.requestTime;
+ request.bytesReceived = reqResponse.byteLength || reqResponse.length;
+ if (!request.bandwidth) {
+ request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
+ }
+ }
+
+ if (response.headers) {
+ request.responseHeaders = response.headers;
+ }
+
+ // videojs.xhr now uses a specific code on the error
+ // object to signal that a request has timed out instead
+ // of setting a boolean on the request object
+ if (error && error.code === 'ETIMEDOUT') {
+ request.timedout = true;
+ }
+
+ // videojs.xhr no longer considers status codes outside of 200 and 0
+ // (for file uris) to be errors, but the old XHR did, so emulate that
+ // behavior. Status 206 may be used in response to byterange requests.
+ if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
+ error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
+ }
+
+ callback(error, request);
+ });
+ var originalAbort = request.abort;
+
+ request.abort = function () {
+ request.aborted = true;
+ return originalAbort.apply(request, arguments);
+ };
+ request.uri = options.uri;
+ request.requestTime = Date.now();
+ return request;
+ };
+
+ return xhr$$1;
+};
+
+/**
+ * @file bin-utils.js
+ */
+
+/**
+ * convert a TimeRange to text
+ *
+ * @param {TimeRange} range the timerange to use for conversion
+ * @param {Number} i the iterator on the range to convert
+ */
+var textRange = function textRange(range, i) {
+ return range.start(i) + '-' + range.end(i);
+};
+
+/**
+ * format a number as hex string
+ *
+ * @param {Number} e The number
+ * @param {Number} i the iterator
+ */
+var formatHexString = function formatHexString(e, i) {
+ var value = e.toString(16);
+
+ return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
+};
+var formatAsciiString = function formatAsciiString(e) {
+ if (e >= 0x20 && e < 0x7e) {
+ return String.fromCharCode(e);
+ }
+ return '.';
+};
+
+/**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+};
+
+/**
+ * Returns a unique string identifier for a media initialization
+ * segment.
+ */
+var initSegmentId = function initSegmentId(initSegment) {
+ var byterange = initSegment.byterange || {
+ length: Infinity,
+ offset: 0
+ };
+
+ return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
+};
+
+/**
+ * utils to help dump binary data to the console
+ */
+var hexDump = function hexDump(data) {
+ var bytes = Array.prototype.slice.call(data);
+ var step = 16;
+ var result = '';
+ var hex = void 0;
+ var ascii = void 0;
+
+ for (var j = 0; j < bytes.length / step; j++) {
+ hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
+ ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
+ result += hex + ' ' + ascii + '\n';
+ }
+
+ return result;
+};
+
+var tagDump = function tagDump(_ref) {
+ var bytes = _ref.bytes;
+ return hexDump(bytes);
+};
+
+var textRanges = function textRanges(ranges) {
+ var result = '';
+ var i = void 0;
+
+ for (i = 0; i < ranges.length; i++) {
+ result += textRange(ranges, i) + ' ';
+ }
+ return result;
+};
+
+var utils = /*#__PURE__*/Object.freeze({
+ createTransferableMessage: createTransferableMessage,
+ initSegmentId: initSegmentId,
+ hexDump: hexDump,
+ tagDump: tagDump,
+ textRanges: textRanges
+});
+
+/**
+ * ranges
+ *
+ * Utilities for working with TimeRanges.
+ *
+ */
+
+// Fudge factor to account for TimeRanges rounding
+var TIME_FUDGE_FACTOR = 1 / 30;
+// Comparisons between time values such as current time and the end of the buffered range
+// can be misleading because of precision differences or when the current media has poorly
+// aligned audio and video, which can cause values to be slightly off from what you would
+// expect. This value is what we consider to be safe to use in such comparisons to account
+// for these scenarios.
+var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
+var filterRanges = function filterRanges(timeRanges, predicate) {
+ var results = [];
+ var i = void 0;
+
+ if (timeRanges && timeRanges.length) {
+ // Search for ranges that match the predicate
+ for (i = 0; i < timeRanges.length; i++) {
+ if (predicate(timeRanges.start(i), timeRanges.end(i))) {
+ results.push([timeRanges.start(i), timeRanges.end(i)]);
+ }
+ }
+ }
+
+ return videojs$1.createTimeRanges(results);
+};
+
+/**
+ * Attempts to find the buffered TimeRange that contains the specified
+ * time.
+ * @param {TimeRanges} buffered - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object
+ */
+var findRange = function findRange(buffered, time) {
+ return filterRanges(buffered, function (start, end) {
+ return start - TIME_FUDGE_FACTOR <= time && end + TIME_FUDGE_FACTOR >= time;
+ });
+};
+
+/**
+ * Returns the TimeRanges that begin later than the specified time.
+ * @param {TimeRanges} timeRanges - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object.
+ */
+var findNextRange = function findNextRange(timeRanges, time) {
+ return filterRanges(timeRanges, function (start) {
+ return start - TIME_FUDGE_FACTOR >= time;
+ });
+};
+
+/**
+ * Returns gaps within a list of TimeRanges
+ * @param {TimeRanges} buffered - the TimeRanges object
+ * @return {TimeRanges} a TimeRanges object of gaps
+ */
+var findGaps = function findGaps(buffered) {
+ if (buffered.length < 2) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var ranges = [];
+
+ for (var i = 1; i < buffered.length; i++) {
+ var start = buffered.end(i - 1);
+ var end = buffered.start(i);
+
+ ranges.push([start, end]);
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+};
+
+/**
+ * Gets a human readable string for a TimeRange
+ *
+ * @param {TimeRange} range
+ * @returns {String} a human readable string
+ */
+var printableRange = function printableRange(range) {
+ var strArr = [];
+
+ if (!range || !range.length) {
+ return '';
+ }
+
+ for (var i = 0; i < range.length; i++) {
+ strArr.push(range.start(i) + ' => ' + range.end(i));
+ }
+
+ return strArr.join(', ');
+};
+
+/**
+ * Calculates the amount of time left in seconds until the player hits the end of the
+ * buffer and causes a rebuffer
+ *
+ * @param {TimeRange} buffered
+ * The state of the buffer
+ * @param {Numnber} currentTime
+ * The current time of the player
+ * @param {Number} playbackRate
+ * The current playback rate of the player. Defaults to 1.
+ * @return {Number}
+ * Time until the player has to start rebuffering in seconds.
+ * @function timeUntilRebuffer
+ */
+var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime) {
+ var playbackRate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
+
+ var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
+
+ return (bufferedEnd - currentTime) / playbackRate;
+};
+
+/**
+ * Converts a TimeRanges object into an array representation
+ * @param {TimeRanges} timeRanges
+ * @returns {Array}
+ */
+var timeRangesToArray = function timeRangesToArray(timeRanges) {
+ var timeRangesList = [];
+
+ for (var i = 0; i < timeRanges.length; i++) {
+ timeRangesList.push({
+ start: timeRanges.start(i),
+ end: timeRanges.end(i)
+ });
+ }
+
+ return timeRangesList;
+};
+
+/**
+ * @file create-text-tracks-if-necessary.js
+ */
+
+/**
+ * Create text tracks on video.js if they exist on a segment.
+ *
+ * @param {Object} sourceBuffer the VSB or FSB
+ * @param {Object} mediaSource the HTML media source
+ * @param {Object} segment the segment that may contain the text track
+ * @private
+ */
+var createTextTracksIfNecessary = function createTextTracksIfNecessary(sourceBuffer, mediaSource, segment) {
+ var player = mediaSource.player_;
+
+ // create an in-band caption track if one is present in the segment
+ if (segment.captions && segment.captions.length) {
+ if (!sourceBuffer.inbandTextTracks_) {
+ sourceBuffer.inbandTextTracks_ = {};
+ }
+
+ for (var trackId in segment.captionStreams) {
+ if (!sourceBuffer.inbandTextTracks_[trackId]) {
+ player.tech_.trigger({ type: 'usage', name: 'hls-608' });
+ var track = player.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ sourceBuffer.inbandTextTracks_[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ sourceBuffer.inbandTextTracks_[trackId] = player.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ }
+
+ if (segment.metadata && segment.metadata.length && !sourceBuffer.metadataTrack_) {
+ sourceBuffer.metadataTrack_ = player.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'Timed Metadata'
+ }, false).track;
+ sourceBuffer.metadataTrack_.inBandMetadataTrackDispatchType = segment.metadata.dispatchType;
+ }
+};
+
+/**
+ * @file remove-cues-from-track.js
+ */
+
+/**
+ * Remove cues from a track on video.js.
+ *
+ * @param {Double} start start of where we should remove the cue
+ * @param {Double} end end of where the we should remove the cue
+ * @param {Object} track the text track to remove the cues from
+ * @private
+ */
+var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {
+ var i = void 0;
+ var cue = void 0;
+
+ if (!track) {
+ return;
+ }
+
+ if (!track.cues) {
+ return;
+ }
+
+ i = track.cues.length;
+
+ while (i--) {
+ cue = track.cues[i];
+
+ // Remove any overlapping cue
+ if (cue.startTime <= end && cue.endTime >= start) {
+ track.removeCue(cue);
+ }
+ }
+};
+
+/**
+ * @file add-text-track-data.js
+ */
+/**
+ * Define properties on a cue for backwards compatability,
+ * but warn the user that the way that they are using it
+ * is depricated and will be removed at a later date.
+ *
+ * @param {Cue} cue the cue to add the properties on
+ * @private
+ */
+var deprecateOldCue = function deprecateOldCue(cue) {
+ Object.defineProperties(cue.frame, {
+ id: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
+ return cue.value.key;
+ }
+ },
+ value: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ },
+ privateData: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ }
+ });
+};
+
+var durationOfVideo = function durationOfVideo(duration) {
+ var dur = void 0;
+
+ if (isNaN(duration) || Math.abs(duration) === Infinity) {
+ dur = Number.MAX_VALUE;
+ } else {
+ dur = duration;
+ }
+ return dur;
+};
+/**
+ * Add text track data to a source handler given the captions and
+ * metadata from the buffer.
+ *
+ * @param {Object} sourceHandler the virtual source buffer
+ * @param {Array} captionArray an array of caption data
+ * @param {Array} metadataArray an array of meta data
+ * @private
+ */
+var addTextTrackData = function addTextTrackData(sourceHandler, captionArray, metadataArray) {
+ var Cue = window$1.WebKitDataCue || window$1.VTTCue;
+
+ if (captionArray) {
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+
+ this.inbandTextTracks_[track].addCue(new Cue(caption.startTime + this.timestampOffset, caption.endTime + this.timestampOffset, caption.text));
+ }, sourceHandler);
+ }
+
+ if (metadataArray) {
+ var videoDuration = durationOfVideo(sourceHandler.mediaSource_.duration);
+
+ metadataArray.forEach(function (metadata) {
+ var time = metadata.cueTime + this.timestampOffset;
+
+ metadata.frames.forEach(function (frame) {
+ var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
+
+ cue.frame = frame;
+ cue.value = frame;
+ deprecateOldCue(cue);
+
+ this.metadataTrack_.addCue(cue);
+ }, this);
+ }, sourceHandler);
+
+ // Updating the metadeta cues so that
+ // the endTime of each cue is the startTime of the next cue
+ // the endTime of last cue is the duration of the video
+ if (sourceHandler.metadataTrack_ && sourceHandler.metadataTrack_.cues && sourceHandler.metadataTrack_.cues.length) {
+ var cues = sourceHandler.metadataTrack_.cues;
+ var cuesArray = [];
+
+ // Create a copy of the TextTrackCueList...
+ // ...disregarding cues with a falsey value
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i]) {
+ cuesArray.push(cues[i]);
+ }
+ }
+
+ // Group cues by their startTime value
+ var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {
+ var timeSlot = obj[cue.startTime] || [];
+
+ timeSlot.push(cue);
+ obj[cue.startTime] = timeSlot;
+
+ return obj;
+ }, {});
+
+ // Sort startTimes by ascending order
+ var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {
+ return Number(a) - Number(b);
+ });
+
+ // Map each cue group's endTime to the next group's startTime
+ sortedStartTimes.forEach(function (startTime, idx) {
+ var cueGroup = cuesGroupedByStartTime[startTime];
+ var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration;
+
+ // Map each cue's endTime the next group's startTime
+ cueGroup.forEach(function (cue) {
+ cue.endTime = nextTime;
+ });
+ });
+ }
+ }
+};
+
+var win = typeof window !== 'undefined' ? window : {},
+ TARGET = typeof Symbol === 'undefined' ? '__target' : Symbol(),
+ SCRIPT_TYPE = 'application/javascript',
+ BlobBuilder = win.BlobBuilder || win.WebKitBlobBuilder || win.MozBlobBuilder || win.MSBlobBuilder,
+ URL = win.URL || win.webkitURL || URL && URL.msURL,
+ Worker = win.Worker;
+
+/**
+ * Returns a wrapper around Web Worker code that is constructible.
+ *
+ * @function shimWorker
+ *
+ * @param { String } filename The name of the file
+ * @param { Function } fn Function wrapping the code of the worker
+ */
+function shimWorker(filename, fn) {
+ return function ShimWorker(forceFallback) {
+ var o = this;
+
+ if (!fn) {
+ return new Worker(filename);
+ } else if (Worker && !forceFallback) {
+ // Convert the function's inner code to a string to construct the worker
+ var source = fn.toString().replace(/^function.+?{/, '').slice(0, -1),
+ objURL = createSourceObject(source);
+
+ this[TARGET] = new Worker(objURL);
+ wrapTerminate(this[TARGET], objURL);
+ return this[TARGET];
+ } else {
+ var selfShim = {
+ postMessage: function postMessage(m) {
+ if (o.onmessage) {
+ setTimeout(function () {
+ o.onmessage({ data: m, target: selfShim });
+ });
+ }
+ }
+ };
+
+ fn.call(selfShim);
+ this.postMessage = function (m) {
+ setTimeout(function () {
+ selfShim.onmessage({ data: m, target: o });
+ });
+ };
+ this.isThisThread = true;
+ }
+ };
+}
+// Test Worker capabilities
+if (Worker) {
+ var testWorker,
+ objURL = createSourceObject('self.onmessage = function () {}'),
+ testArray = new Uint8Array(1);
+
+ try {
+ testWorker = new Worker(objURL);
+
+ // Native browser on some Samsung devices throws for transferables, let's detect it
+ testWorker.postMessage(testArray, [testArray.buffer]);
+ } catch (e) {
+ Worker = null;
+ } finally {
+ URL.revokeObjectURL(objURL);
+ if (testWorker) {
+ testWorker.terminate();
+ }
+ }
+}
+
+function createSourceObject(str) {
+ try {
+ return URL.createObjectURL(new Blob([str], { type: SCRIPT_TYPE }));
+ } catch (e) {
+ var blob = new BlobBuilder();
+ blob.append(str);
+ return URL.createObjectURL(blob.getBlob(type));
+ }
+}
+
+function wrapTerminate(worker, objURL) {
+ if (!worker || !objURL) return;
+ var term = worker.terminate;
+ worker.objURL = objURL;
+ worker.terminate = function () {
+ if (worker.objURL) URL.revokeObjectURL(worker.objURL);
+ term.call(worker);
+ };
+}
+
+var TransmuxWorker = new shimWorker("./transmuxer-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var transmuxerWorker = function () {
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS;
+
+ // pre-calculate constants
+ (function () {
+ var i;
+ types = {
+ avc1: [], // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [], // codingname
+ mvex: [],
+ mvhd: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ };
+
+ // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length;
+
+ // calculate the total size we need to allocate
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4);
+
+ // copy the payload into the result
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]);
+
+ // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length;
+ // build traf boxes for each track fragment
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i;
+
+ // leave the full box header (4 bytes) all zero
+
+ // write the sample table
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i;
+
+ // assemble the SPSs
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ }
+
+ // assemble the PPSs
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ return box(types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length // numOfSequenceParameterSets
+ ]).concat(sequenceParameterSets).concat([pps.length // numOfPictureParameterSets
+ ]).concat(pictureParameterSets))), // "PPS"
+ box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
+ );
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([
+
+ // SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+
+ return box(types.tkhd, result);
+ };
+
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF]));
+
+ // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+
+ // audio tracks require less metadata
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ }
+
+ // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]);
+ // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader;
+
+ // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0;
+
+ // trun flag constants
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+
+ var toUnsigned = function toUnsigned(value) {
+ return value >>> 0;
+ };
+
+ var bin = {
+ toUnsigned: toUnsigned
+ };
+
+ var toUnsigned$1 = bin.toUnsigned;
+ var _findBox, parseType, timescale, startTime, getVideoTrackIds;
+
+ // Find the data for a box specified by its path
+ _findBox = function findBox(data, path) {
+ var results = [],
+ i,
+ size,
+ type,
+ end,
+ subresults;
+
+ if (!path.length) {
+ // short-circuit the search for empty paths
+ return null;
+ }
+
+ for (i = 0; i < data.byteLength;) {
+ size = toUnsigned$1(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+
+ type = parseType(data.subarray(i + 4, i + 8));
+
+ end = size > 1 ? i + size : data.byteLength;
+
+ if (type === path[0]) {
+ if (path.length === 1) {
+ // this is the end of the path and we've found the box we were
+ // looking for
+ results.push(data.subarray(i + 8, end));
+ } else {
+ // recursively search for the next box along the path
+ subresults = _findBox(data.subarray(i + 8, end), path.slice(1));
+ if (subresults.length) {
+ results = results.concat(subresults);
+ }
+ }
+ }
+ i = end;
+ }
+
+ // we've finished searching all of data
+ return results;
+ };
+
+ /**
+ * Returns the string representation of an ASCII encoded four byte buffer.
+ * @param buffer {Uint8Array} a four-byte buffer to translate
+ * @return {string} the corresponding string
+ */
+ parseType = function parseType(buffer) {
+ var result = '';
+ result += String.fromCharCode(buffer[0]);
+ result += String.fromCharCode(buffer[1]);
+ result += String.fromCharCode(buffer[2]);
+ result += String.fromCharCode(buffer[3]);
+ return result;
+ };
+
+ /**
+ * Parses an MP4 initialization segment and extracts the timescale
+ * values for any declared tracks. Timescale values indicate the
+ * number of clock ticks per second to assume for time-based values
+ * elsewhere in the MP4.
+ *
+ * To determine the start time of an MP4, you need two pieces of
+ * information: the timescale unit and the earliest base media decode
+ * time. Multiple timescales can be specified within an MP4 but the
+ * base media decode time is always expressed in the timescale from
+ * the media header box for the track:
+ * ```
+ * moov > trak > mdia > mdhd.timescale
+ * ```
+ * @param init {Uint8Array} the bytes of the init segment
+ * @return {object} a hash of track ids to timescale values or null if
+ * the init segment is malformed.
+ */
+ timescale = function timescale(init) {
+ var result = {},
+ traks = _findBox(init, ['moov', 'trak']);
+
+ // mdhd timescale
+ return traks.reduce(function (result, trak) {
+ var tkhd, version, index, id, mdhd;
+
+ tkhd = _findBox(trak, ['tkhd'])[0];
+ if (!tkhd) {
+ return null;
+ }
+ version = tkhd[0];
+ index = version === 0 ? 12 : 20;
+ id = toUnsigned$1(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+
+ mdhd = _findBox(trak, ['mdia', 'mdhd'])[0];
+ if (!mdhd) {
+ return null;
+ }
+ version = mdhd[0];
+ index = version === 0 ? 12 : 20;
+ result[id] = toUnsigned$1(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+ return result;
+ }, result);
+ };
+
+ /**
+ * Determine the base media decode start time, in seconds, for an MP4
+ * fragment. If multiple fragments are specified, the earliest time is
+ * returned.
+ *
+ * The base media decode time can be parsed from track fragment
+ * metadata:
+ * ```
+ * moof > traf > tfdt.baseMediaDecodeTime
+ * ```
+ * It requires the timescale value from the mdhd to interpret.
+ *
+ * @param timescale {object} a hash of track ids to timescale values.
+ * @return {number} the earliest base media decode start time for the
+ * fragment, in seconds
+ */
+ startTime = function startTime(timescale, fragment) {
+ var trafs, baseTimes, result;
+
+ // we need info from two childrend of each track fragment box
+ trafs = _findBox(fragment, ['moof', 'traf']);
+
+ // determine the start times for each track
+ baseTimes = [].concat.apply([], trafs.map(function (traf) {
+ return _findBox(traf, ['tfhd']).map(function (tfhd) {
+ var id, scale, baseTime;
+
+ // get the track id from the tfhd
+ id = toUnsigned$1(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]);
+ // assume a 90kHz clock if no timescale was specified
+ scale = timescale[id] || 90e3;
+
+ // get the base media decode time from the tfdt
+ baseTime = _findBox(traf, ['tfdt']).map(function (tfdt) {
+ var version, result;
+
+ version = tfdt[0];
+ result = toUnsigned$1(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);
+ if (version === 1) {
+ result *= Math.pow(2, 32);
+ result += toUnsigned$1(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);
+ }
+ return result;
+ })[0];
+ baseTime = baseTime || Infinity;
+
+ // convert base time to seconds
+ return baseTime / scale;
+ });
+ }));
+
+ // return the minimum
+ result = Math.min.apply(null, baseTimes);
+ return isFinite(result) ? result : 0;
+ };
+
+ /**
+ * Find the trackIds of the video tracks in this source.
+ * Found by parsing the Handler Reference and Track Header Boxes:
+ * moov > trak > mdia > hdlr
+ * moov > trak > tkhd
+ *
+ * @param {Uint8Array} init - The bytes of the init segment for this source
+ * @return {Number[]} A list of trackIds
+ *
+ * @see ISO-BMFF-12/2015, Section 8.4.3
+ **/
+ getVideoTrackIds = function getVideoTrackIds(init) {
+ var traks = _findBox(init, ['moov', 'trak']);
+ var videoTrackIds = [];
+
+ traks.forEach(function (trak) {
+ var hdlrs = _findBox(trak, ['mdia', 'hdlr']);
+ var tkhds = _findBox(trak, ['tkhd']);
+
+ hdlrs.forEach(function (hdlr, index) {
+ var handlerType = parseType(hdlr.subarray(8, 12));
+ var tkhd = tkhds[index];
+ var view;
+ var version;
+ var trackId;
+
+ if (handlerType === 'vide') {
+ view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+ version = view.getUint8(0);
+ trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+
+ videoTrackIds.push(trackId);
+ }
+ });
+ });
+
+ return videoTrackIds;
+ };
+
+ var probe = {
+ findBox: _findBox,
+ parseType: parseType,
+ timescale: timescale,
+ startTime: startTime,
+ videoTrackIds: getVideoTrackIds
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2014 Brightcove
+ * All rights reserved.
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+
+ var Stream = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+ this.off = function (type, listener) {
+ var index;
+ if (!listeners[type]) {
+ return false;
+ }
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+ Stream.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+
+ return destination;
+ };
+
+ // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+ Stream.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ var stream = Stream;
+
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = [];
+
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i];
+
+ // Split on 'aud'-type nal units
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ frames.push(currentFrame);
+ }
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ }
+
+ // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ }
+
+ // Push the final frame
+ frames.push(currentFrame);
+ return frames;
+ };
+
+ // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = [];
+
+ // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts;
+
+ // store some metadata about all the Gops
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+
+ // push the final Gop
+ gops.push(currentGop);
+ return gops;
+ };
+
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount;
+
+ // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ };
+
+ // generate the track's sample table from an array of gops
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ sample = sampleForFrame(currentFrame, dataOffset);
+
+ dataOffset += sample.size;
+
+ samples.push(sample);
+ }
+ }
+ return samples;
+ };
+
+ // generate the track's raw mdat data from an array of gops
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer);
+
+ // For each Gop..
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ // For each Frame..
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ // For each NAL..
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData
+ };
+
+ var ONE_SECOND_IN_TS = 90000; // 90kHz clock
+
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts;
+
+ // Optionally adjust the time so the first segment starts at zero.
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ }
+
+ // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime;
+
+ // Add to that the distance this segment is from the very first
+ baseMediaDecodeTime += minSegmentDts;
+
+ // baseMediaDecodeTime must not become negative
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0;
+
+ // go through the sei_rbsp parsing each each individual sei_message
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ }
+
+ // Parse payload type
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+ payloadType += bytes[i++];
+
+ // Parse payload size
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+ payloadSize += bytes[i++];
+
+ // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ }
+
+ // skip the payload and parse the next message
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ };
+
+ // see ANSI/SCTE 128-1 (2013), section 8.1
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ }
+
+ // itu_t_t35_provider_code should be 49 (ATSC) for captions
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ }
+
+ // the user_identifier should be "GA94" to indicate ATSC1 data
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ }
+
+ // finally, user_data_type_code should be 0x03 for caption data
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ }
+
+ // return the user_data_type_structure and strip the trailing
+ // marker bits
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ };
+
+ // see CEA-708-D, section 4.4
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data;
+
+ // if this is just filler, return immediately
+ if (!(userData[0] & 0x40)) {
+ return results;
+ }
+
+ // parse out the cc_data_1 and cc_data_2 fields
+ count = userData[0] & 0x1f;
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ };
+
+ // capture cc data when cc_valid is 1
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ // exports
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ };
+
+ // -----------------
+ // Link To Transport
+ // -----------------
+
+
+ var CaptionStream = function CaptionStream() {
+
+ CaptionStream.prototype.init.call(this);
+
+ this.captionPackets_ = [];
+
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+
+ this.reset();
+
+ // forward data and done events from CCs to this CaptionStream
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new stream();
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets;
+
+ // only examine SEI NALs
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ }
+
+ // parse the sei
+ sei = captionPacketParser.parseSei(event.escapedRBSP);
+
+ // ignore everything but user_data_registered_itu_t_t35
+ if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ }
+
+ // parse out the user data payload
+ userData = captionPacketParser.parseUserData(sei);
+
+ // ignore unrecognized userData
+ if (!userData) {
+ return;
+ }
+
+ // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+ return;
+ }
+
+ // parse out CC data packets and save them for later
+ newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flush = function () {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ }
+
+ // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ });
+
+ // sort caption byte-pairs based on their PTS values
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+ return a.pts - b.pts;
+ });
+
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ }
+ // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+ }, this);
+
+ this.captionPackets_.length = 0;
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ };
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, discard the
+ // data; we don't want jumbled captions
+ return;
+ }
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ // ----------------------
+ // Session to Application
+ // ----------------------
+
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1, // á
+ 0x5c: 0xe9, // é
+ 0x5e: 0xed, // í
+ 0x5f: 0xf3, // ó
+ 0x60: 0xfa, // ú
+ 0x7b: 0xe7, // ç
+ 0x7c: 0xf7, // ÷
+ 0x7d: 0xd1, // Ñ
+ 0x7e: 0xf1, // ñ
+ 0x7f: 0x2588, // █
+ 0x0130: 0xae, // ®
+ 0x0131: 0xb0, // °
+ 0x0132: 0xbd, // ½
+ 0x0133: 0xbf, // ¿
+ 0x0134: 0x2122, // ™
+ 0x0135: 0xa2, // ¢
+ 0x0136: 0xa3, // £
+ 0x0137: 0x266a, // ♪
+ 0x0138: 0xe0, // à
+ 0x0139: 0xa0, //
+ 0x013a: 0xe8, // è
+ 0x013b: 0xe2, // â
+ 0x013c: 0xea, // ê
+ 0x013d: 0xee, // î
+ 0x013e: 0xf4, // ô
+ 0x013f: 0xfb, // û
+ 0x0220: 0xc1, // Á
+ 0x0221: 0xc9, // É
+ 0x0222: 0xd3, // Ó
+ 0x0223: 0xda, // Ú
+ 0x0224: 0xdc, // Ü
+ 0x0225: 0xfc, // ü
+ 0x0226: 0x2018, // ‘
+ 0x0227: 0xa1, // ¡
+ 0x0228: 0x2a, // *
+ 0x0229: 0x27, // '
+ 0x022a: 0x2014, // —
+ 0x022b: 0xa9, // ©
+ 0x022c: 0x2120, // ℠
+ 0x022d: 0x2022, // •
+ 0x022e: 0x201c, // “
+ 0x022f: 0x201d, // ”
+ 0x0230: 0xc0, // À
+ 0x0231: 0xc2, // Â
+ 0x0232: 0xc7, // Ç
+ 0x0233: 0xc8, // È
+ 0x0234: 0xca, // Ê
+ 0x0235: 0xcb, // Ë
+ 0x0236: 0xeb, // ë
+ 0x0237: 0xce, // Î
+ 0x0238: 0xcf, // Ï
+ 0x0239: 0xef, // ï
+ 0x023a: 0xd4, // Ô
+ 0x023b: 0xd9, // Ù
+ 0x023c: 0xf9, // ù
+ 0x023d: 0xdb, // Û
+ 0x023e: 0xab, // «
+ 0x023f: 0xbb, // »
+ 0x0320: 0xc3, // Ã
+ 0x0321: 0xe3, // ã
+ 0x0322: 0xcd, // Í
+ 0x0323: 0xcc, // Ì
+ 0x0324: 0xec, // ì
+ 0x0325: 0xd2, // Ò
+ 0x0326: 0xf2, // ò
+ 0x0327: 0xd5, // Õ
+ 0x0328: 0xf5, // õ
+ 0x0329: 0x7b, // {
+ 0x032a: 0x7d, // }
+ 0x032b: 0x5c, // \
+ 0x032c: 0x5e, // ^
+ 0x032d: 0x5f, // _
+ 0x032e: 0x7c, // |
+ 0x032f: 0x7e, // ~
+ 0x0330: 0xc4, // Ä
+ 0x0331: 0xe4, // ä
+ 0x0332: 0xd6, // Ö
+ 0x0333: 0xf6, // ö
+ 0x0334: 0xdf, // ß
+ 0x0335: 0xa5, // ¥
+ 0x0336: 0xa4, // ¤
+ 0x0337: 0x2502, // │
+ 0x0338: 0xc5, // Å
+ 0x0339: 0xe5, // å
+ 0x033a: 0xd8, // Ø
+ 0x033b: 0xf8, // ø
+ 0x033c: 0x250c, // ┌
+ 0x033d: 0x2510, // ┐
+ 0x033e: 0x2514, // └
+ 0x033f: 0x2518 // ┘
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ };
+
+ // the index of the last row in a CEA-608 display buffer
+ var BOTTOM_ROW = 14;
+
+ // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420];
+
+ // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+ while (i--) {
+ result.push('');
+ }
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text;
+ // remove the parity bits
+ data = packet.ccData & 0x7f7f;
+
+ // ignore duplicate control codes; the spec demands they're sent twice
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ }
+
+ // Store control codes
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts);
+ // if a caption was being displayed, it's gone now
+ this.flushDisplayed(packet.pts);
+
+ // flip memory
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap;
+
+ // start measuring the time to display the caption
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts;
+
+ // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts);
+
+ // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ // Detect offset control codes and adjust cursor
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03;
+
+ // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20);
+
+ // Configure the caption window if we're in roll-up mode
+ if (this.mode_ === 'rollUp') {
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ }
+ // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ }
+
+ // We have a normal character in char0, and possibly one in char1
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+ };
+ };
+ Cea608Stream.prototype = new stream();
+ // Trigger a cue point that captures the current state of the
+ // display buffer
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_
+ // remove spaces from the start and end of the string
+ .map(function (row) {
+ return row.trim();
+ })
+ // combine all text rows to display in one cue
+ .join('\n')
+ // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn';
+ // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null;
+
+ // Track row and column for proper line-breaking and spacing
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2;
+
+ // This variable holds currently-applied formatting
+ this.formatting_ = [];
+ };
+
+ /**
+ * Sets up control code and related constants for this instance
+ */
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ }
+
+ // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+ this.PADDING_ = 0x0000;
+ // Pop-on Mode
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f;
+ // Roll-up Mode
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d;
+ // paint-on mode
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29;
+ // Erasure
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+ Cea608Stream.prototype.isNormalChar = function (char) {
+ return char >= 0x20 && char <= 0x7f;
+ };
+
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp';
+ // Spec says to wipe memories when switching to roll-up
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ };
+
+ // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ };
+
+ // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ };
+
+ // Mode Implementations
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_];
+
+ // buffer characters
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i;
+ // clear out inactive rows
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ }
+ // shift displayed rows up
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ }
+ // clear out the bottom row
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ // exports
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+
+ var MAX_TS = 8589934592;
+
+ var RO_THRESH = 4294967296;
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ }
+
+ // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+
+ TimestampRolloverStream.prototype.init.call(this);
+
+ this.type_ = type;
+
+ this.push = function (data) {
+ if (data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+
+ lastDTS = data.dts;
+
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+ };
+
+ TimestampRolloverStream.prototype = new stream();
+
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ // do not include the null terminator in the tag value
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+
+
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+
+
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+
+
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this);
+
+ // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+ this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ }
+
+ // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ }
+
+ // ignore events that don't look like ID3 data
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+ return;
+ }
+
+ // add this chunk to the data we've collected so far
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength;
+
+ // grab the size of the entire frame from the ID3 header
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10));
+
+ // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+ tagSize += 10;
+ }
+
+ // if the entire frame has not arrived, wait for more data
+ if (bufferSize < tagSize) {
+ return;
+ }
+
+ // collect the entire frame so it can be parsed
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ }
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14));
+
+ // clip any padding off the end
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame);
+
+ // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size;
+ // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+ this.trigger('timestamp', frame);
+ }
+ }
+ tag.frames.push(frame);
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+ this.trigger('data', tag);
+ };
+ };
+ _MetadataStream.prototype = new stream();
+
+ var metadataStream = _MetadataStream;
+
+ var TimestampRolloverStream$1 = timestampRolloverStream.TimestampRolloverStream;
+
+ // object types
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream;
+
+ // constants
+ var MP2T_PACKET_LENGTH = 188,
+
+
+ // bytes
+ SYNC_BYTE = 0x47;
+
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this);
+
+ // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ }
+
+ // While we have enough data for a packet
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ }
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+ this.trigger('done');
+ };
+ };
+ _TransportPacketStream.prototype = new stream();
+
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+ _TransportParseStream.prototype.init.call(this);
+ self = this;
+
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0;
+
+ // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+
+ // skip the PSI header and parse the first PMT entry
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset;
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(payload[5] & 0x01)) {
+ return;
+ }
+
+ // overwrite any existing program map table
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ };
+
+ // the mapping table ends at the end of the current section
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11];
+
+ // advance the offset to the first entry in the mapping table
+ offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2];
+
+ // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+ if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ }
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ }
+
+ // record the map on the packet as well
+ pmt.programMapTable = self.programMapTable;
+ };
+
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40);
+
+ // pid is a 13-bit field starting at the last bit of packet[1]
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2];
+
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ }
+
+ // parse the rest of the packet based on the type
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+
+ // if there are any packets waiting for a PMT to be found, process them now
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = streamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = streamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+
+ this.trigger('data', result);
+ };
+ };
+ _TransportParseStream.prototype = new stream();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+
+
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags;
+
+ // get the packet length, this will be 0 for video
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]);
+
+ // find out if this packets starts a new keyframe
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0;
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = payload[7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream$$1, type, forceFlush) {
+ var packetData = new Uint8Array(stream$$1.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment;
+
+ // do nothing if there is not enough buffered data for a complete
+ // PES header
+ if (!stream$$1.data.length || stream$$1.size < 9) {
+ return;
+ }
+ event.trackId = stream$$1.data[0].pid;
+
+ // reassemble the packet
+ for (i = 0; i < stream$$1.data.length; i++) {
+ fragment = stream$$1.data[i];
+
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ }
+
+ // parse assembled packet's PES header
+ parsePes(packetData, event);
+
+ // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+ packetFlushable = type === 'video' || event.packetLength <= stream$$1.size;
+
+ // flush pending packets if the conditions are right
+ if (forceFlush || packetFlushable) {
+ stream$$1.size = 0;
+ stream$$1.data.length = 0;
+ }
+
+ // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+ this.push = function (data) {
+ ({
+ pat: function pat() {
+ // we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream$$1, streamType;
+
+ switch (data.streamType) {
+ case streamTypes.H264_STREAM_TYPE:
+ case streamTypes.H264_STREAM_TYPE:
+ stream$$1 = video;
+ streamType = 'video';
+ break;
+ case streamTypes.ADTS_STREAM_TYPE:
+ stream$$1 = audio;
+ streamType = 'audio';
+ break;
+ case streamTypes.METADATA_STREAM_TYPE:
+ stream$$1 = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+ default:
+ // ignore unknown stream types
+ return;
+ }
+
+ // if a new packet is starting, we can flush the completed
+ // packet
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream$$1, streamType, true);
+ }
+
+ // buffer this fragment until we are sure we've received the
+ // complete payload
+ stream$$1.data.push(data);
+ stream$$1.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ },
+ programMapTable = data.programMapTable;
+
+ // translate audio and video streams to tracks
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+ this.flush = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ this.trigger('done');
+ };
+ };
+ _ElementaryStream.prototype = new stream();
+
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: captionStream.CaptionStream,
+ Cea608Stream: captionStream.Cea608Stream,
+ MetadataStream: metadataStream
+ };
+
+ for (var type in streamTypes) {
+ if (streamTypes.hasOwnProperty(type)) {
+ m2ts[type] = streamTypes[type];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+ _AdtsStream = function AdtsStream() {
+ var buffer;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameNum = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ }
+
+ // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ }
+
+ // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+ while (i + 5 < buffer.length) {
+
+ // Loook for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2;
+
+ // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * 90000 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+
+ frameEnd = i + frameLength;
+
+ // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+ if (buffer.byteLength < frameEnd) {
+ return;
+ }
+
+ // Otherwise, deliver the complete AAC frame
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+
+ // If the buffer is empty, clear it and return
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ }
+
+ frameNum++;
+
+ // Remove the finished frame from the buffer and start the process again
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+ this.flush = function () {
+ this.trigger('done');
+ };
+ };
+
+ _AdtsStream.prototype = new stream();
+
+ var adts = _AdtsStream;
+
+ var ExpGolomb;
+
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+ ExpGolomb = function ExpGolomb(workingData) {
+ var
+ // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+
+
+ // the current word being examined
+ workingWord = 0,
+
+
+ // :uint
+
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+
+ // ():uint
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ };
+
+ // ():uint
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ };
+
+ // ():void
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0);
+
+ // track the amount of workingData that has been processed
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ };
+
+ // (count:int):void
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+
+ this.loadWord();
+
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ };
+
+ // (size:int):uint
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+
+
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+ workingBitsAvailable -= bits;
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+ return valu;
+ };
+
+ // ():uint
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ }
+
+ // we exhausted workingWord and still have not found a 1
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ };
+
+ // ():void
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():void
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():uint
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+ return this.readBits(clz + 1) - 1;
+ };
+
+ // ():int
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ };
+
+ // Some convenience functions
+ // :Boolean
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ };
+
+ // ():int
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var _H264Stream, _NalByteStream;
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+ _NalByteStream.prototype.init.call(this);
+
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+
+ // advance the sync point to a NAL start, if necessary
+ for (; syncPoint < buffer.byteLength - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < buffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ }
+
+ // deliver the NAL unit if it isn't empty
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ }
+
+ // drop trailing zeroes
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < buffer.length);
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ }
+
+ // deliver the NAL unit
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ }
+ // filter out the NAL units that were delivered
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ }
+ // reset the stream state
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+ };
+ _NalByteStream.prototype = new stream();
+
+ // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+ self = this;
+
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+
+ nalByteStream.push(packet);
+ };
+
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ }
+ // This triggers data on the H264Stream
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+
+ expGolombDecoder = new expGolomb(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+
+ // some profiles have more optional data we don't need
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];break;
+ case 2:
+ sarRatio = [12, 11];break;
+ case 3:
+ sarRatio = [10, 11];break;
+ case 4:
+ sarRatio = [16, 11];break;
+ case 5:
+ sarRatio = [40, 33];break;
+ case 6:
+ sarRatio = [24, 11];break;
+ case 7:
+ sarRatio = [20, 11];break;
+ case 8:
+ sarRatio = [32, 11];break;
+ case 9:
+ sarRatio = [80, 33];break;
+ case 10:
+ sarRatio = [18, 11];break;
+ case 11:
+ sarRatio = [15, 11];break;
+ case 12:
+ sarRatio = [64, 33];break;
+ case 13:
+ sarRatio = [160, 99];break;
+ case 14:
+ sarRatio = [4, 3];break;
+ case 15:
+ sarRatio = [3, 2];break;
+ case 16:
+ sarRatio = [2, 1];break;
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
+ };
+ };
+ };
+ _H264Stream.prototype = new stream();
+
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+
+ // Constants
+ var _AacStream;
+
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.parseId3TagSize = function (header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ this.parseAdtsSize = function (header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ }
+
+ // check framesize
+ frameSize = this.parseId3TagSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if (everything[byteIndex] & 0xff === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = this.parseAdtsSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+ byteIndex++;
+ }
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+ };
+
+ _AacStream.prototype = new stream();
+
+ var aac = _AacStream;
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+ while (count--) {
+ a.push(0);
+ }
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ };
+
+ // Frames-of-silence to use for filling in missing AAC frames
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+
+ var silence = makeTable(coneOfSilence);
+
+ var ONE_SECOND_IN_TS$1 = 90000,
+
+
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS$1;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS$1;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+
+ var clock = {
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs
+ };
+
+ var H264Stream = h264.H264Stream;
+
+ // constants
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility'];
+
+ var ONE_SECOND_IN_TS$2 = 90000; // 90kHz clock
+
+ // object types
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+
+ // Helper functions
+ var isLikelyAacData, arrayEquals, sumFrameByteLengths;
+
+ isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+ arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ }
+
+ // compare the value of each element in the array
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+ sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0;
+
+ // sum the byteLength's all each nal unit in the frame
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ };
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ }
+
+ // buffer audio data until end() is called
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes;
+
+ // return early if no audio data has been observed
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = this.trimAdtsFramesByEarliestDts_(adtsFrames);
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.prefixWithSilence_(track, frames);
+
+ // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+ track.samples = this.generateSampleTable_(frames);
+
+ // concatenate the audio data to constuct the mdat
+ mdat = mp4Generator.mdat(this.concatenateFrameData_(frames));
+
+ adtsFrames = [];
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ trackDecodeInfo.clearDtsInfo(track);
+
+ this.trigger('data', { track: track, boxes: boxes });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+ this.prefixWithSilence_ = function (track, frames) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate);
+ // determine frame clock duration based on sample rate, round up to avoid overfills
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$2 / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime);
+ // number of full frames in the audio gap
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ }
+
+ // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+ if (audioFillFrameCount < 1 || audioFillDuration > ONE_SECOND_IN_TS$2 / 2) {
+ return;
+ }
+
+ silentFrame = silence[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ frames.splice(i, 0, {
+ data: silentFrame
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ };
+
+ // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+ this.trimAdtsFramesByEarliestDts_ = function (adtsFrames) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ }
+
+ // We will need to recalculate the earliest segment Dts
+ track.minSegmentDts = Infinity;
+
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ }
+ // Otherwise, discard it
+ return false;
+ });
+ };
+
+ // generate the track's raw mdat data from an array of frames
+ this.generateSampleTable_ = function (frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+ });
+ }
+ return samples;
+ };
+
+ // generate the track's sample table from an array of frames
+ this.concatenateFrameData_ = function (frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+ return data;
+ };
+ };
+
+ _AudioSegmentStream.prototype = new stream();
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+
+ this.gopCache_ = [];
+
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+ this.push = function (nalUnit) {
+ trackDecodeInfo.collectDtsInfo(track, nalUnit);
+
+ // record the track config
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ }
+
+ // buffer video until flush() is called
+ nalUnits.push(nalUnit);
+ };
+
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+ this.flush = function () {
+ var frames, gopForFusion, gops, moof, mdat, boxes;
+
+ // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+ nalUnits.shift();
+ }
+
+ // Return early if no video data has been observed
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+ frames = frameUtils.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils.groupFramesIntoGops(frames);
+
+ // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ gops.unshift(gopForFusion);
+ // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils.extendFirstKeyFrame(gops);
+ }
+ }
+
+ // Trim gops to align with gopsToAlignWith
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ // return early no gops can be aligned with desired gopsToAlignWith
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+ trackDecodeInfo.clearDtsInfo(track);
+
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo.collectDtsInfo(track, gops);
+
+ // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+ track.samples = frameUtils.generateSampleTable(gops);
+
+ // Concatenate the video data and construct the mdat
+ mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
+
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+
+ // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // Bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ this.trigger('data', { track: track, boxes: boxes });
+
+ this.resetStream_();
+
+ // Continue with the flush process now
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo.clearDtsInfo(track);
+
+ // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+ config = undefined;
+ pps = undefined;
+ };
+
+ // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+
+
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+
+
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i;
+
+ // Search for the GOP nearest to the beginning of this nal unit
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop;
+
+ // Reject Gops with different SPS or PPS
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ }
+
+ // Reject Gops that would require a negative baseMediaDecodeTime
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ }
+
+ // The distance between the end of the gop and the start of the nalUnit
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration;
+
+ // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+ return null;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ }
+
+ // current gop starts before the current gop we want to align on. so increment gop
+ // index
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, { byteLength: 0, duration: 0, nalCount: 0 });
+
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new stream();
+
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ */
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this);
+
+ // Take output from multiple
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ }
+ // buffer incoming id3 tags until the final flush
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ }
+
+ // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+ this.pendingTracks.push(output.track);
+ this.pendingBoxes.push(output.boxes);
+ this.pendingBytes += output.boxes.byteLength;
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ }
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new stream();
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+
+ initSegment = mp4Generator.initSegment(this.pendingTracks);
+
+ // Create a new typed array to hold the init segment
+ event.initSegment = new Uint8Array(initSegment.byteLength);
+
+ // Create an init segment containing a moov
+ // and track definitions
+ event.initSegment.set(initSegment);
+
+ // Create a new typed array to hold the moof+mdats
+ event.data = new Uint8Array(this.pendingBytes);
+
+ // Append each moof+mdat (one per track) together
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ }
+
+ // Translate caption PTS times into second offsets into the
+ // video timeline for the segment, and add track info
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = caption.startPts - timelineStartPts;
+ caption.startTime /= 90e3;
+ caption.endTime = caption.endPts - timelineStartPts;
+ caption.endTime /= 90e3;
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ }
+
+ // Translate ID3 frame PTS times into second offsets into the
+ // video timeline for the segment
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = id3.pts - timelineStartPts;
+ id3.cueTime /= 90e3;
+ event.metadata.push(id3);
+ }
+ // We add this to every single emitted segment even though we only need
+ // it for the first
+ event.metadata.dispatchType = this.metadataStream.dispatchType;
+
+ // Reset stream state
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0;
+
+ // Emit the built segment
+ this.trigger('data', event);
+
+ // Only emit `done` if all tracks have been flushed and emitted
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.aacStream = new aac();
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ };
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.packetStream = new m2ts_1.TransportPacketStream();
+ pipeline.parseStream = new m2ts_1.TransportParseStream();
+ pipeline.elementaryStream = new m2ts_1.ElementaryStream();
+ pipeline.videoTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('video');
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts_1.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream;
+
+ // disassemble MPEG2-TS packets into elementary streams
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream);
+
+ // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+ pipeline.elementaryStream.pipe(pipeline.videoTimestampRolloverStream).pipe(pipeline.h264Stream);
+ pipeline.elementaryStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+
+ pipeline.elementaryStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ // Hook up CEA-608/708 caption stream
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length;
+
+ // scan the tracks listed in the metadata
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ }
+
+ // hook up the video segment stream to the first track with h264 data
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo;
+ // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+
+ // Set up the final part of the video pipeline
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ // hook up the segment streams once track metadata is delivered
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(audioTrack);
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ pipeline.videoTimestampRolloverStream.discontinuity();
+ }
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.timedMetadataTimestampRolloverStream) {
+ pipeline.timedMetadataTimestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ };
+
+ // feed incoming data to the front of the parsing pipeline
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+ hasFlushed = false;
+ }
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ };
+
+ // flush any buffered data
+ this.flush = function () {
+ hasFlushed = true;
+ // Start at the top of the pipeline and flush all pending work
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ // Caption data has to be reset when seeking outside buffered range
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+ _Transmuxer.prototype = new stream();
+
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES
+ };
+
+ var inspectMp4,
+ _textifyMp,
+ parseType$1 = probe.parseType,
+ parseMp4Date = function parseMp4Date(seconds) {
+ return new Date(seconds * 1000 - 2082844800000);
+ },
+ parseSampleFlags = function parseSampleFlags(flags) {
+ return {
+ isLeading: (flags[0] & 0x0c) >>> 2,
+ dependsOn: flags[0] & 0x03,
+ isDependedOn: (flags[1] & 0xc0) >>> 6,
+ hasRedundancy: (flags[1] & 0x30) >>> 4,
+ paddingValue: (flags[1] & 0x0e) >>> 1,
+ isNonSyncSample: flags[1] & 0x01,
+ degradationPriority: flags[2] << 8 | flags[3]
+ };
+ },
+ nalParse = function nalParse(avcStream) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ i,
+ length;
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ result.push('<span style=\'color:red;\'>MALFORMED DATA</span>');
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x01:
+ result.push('slice_layer_without_partitioning_rbsp');
+ break;
+ case 0x05:
+ result.push('slice_layer_without_partitioning_rbsp_idr');
+ break;
+ case 0x06:
+ result.push('sei_rbsp');
+ break;
+ case 0x07:
+ result.push('seq_parameter_set_rbsp');
+ break;
+ case 0x08:
+ result.push('pic_parameter_set_rbsp');
+ break;
+ case 0x09:
+ result.push('access_unit_delimiter_rbsp');
+ break;
+ default:
+ result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F);
+ break;
+ }
+ }
+ return result;
+ },
+
+
+ // registry of handlers for individual mp4 box types
+ parse$$1 = {
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ avc1: function avc1(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ dataReferenceIndex: view.getUint16(6),
+ width: view.getUint16(24),
+ height: view.getUint16(26),
+ horizresolution: view.getUint16(28) + view.getUint16(30) / 16,
+ vertresolution: view.getUint16(32) + view.getUint16(34) / 16,
+ frameCount: view.getUint16(40),
+ depth: view.getUint16(74),
+ config: inspectMp4(data.subarray(78, data.byteLength))
+ };
+ },
+ avcC: function avcC(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ configurationVersion: data[0],
+ avcProfileIndication: data[1],
+ profileCompatibility: data[2],
+ avcLevelIndication: data[3],
+ lengthSizeMinusOne: data[4] & 0x03,
+ sps: [],
+ pps: []
+ },
+ numOfSequenceParameterSets = data[5] & 0x1f,
+ numOfPictureParameterSets,
+ nalSize,
+ offset,
+ i;
+
+ // iterate past any SPSs
+ offset = 6;
+ for (i = 0; i < numOfSequenceParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ // iterate past any PPSs
+ numOfPictureParameterSets = data[offset];
+ offset++;
+ for (i = 0; i < numOfPictureParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ return result;
+ },
+ btrt: function btrt(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ bufferSizeDB: view.getUint32(0),
+ maxBitrate: view.getUint32(4),
+ avgBitrate: view.getUint32(8)
+ };
+ },
+ esds: function esds(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ esId: data[6] << 8 | data[7],
+ streamPriority: data[8] & 0x1f,
+ decoderConfig: {
+ objectProfileIndication: data[11],
+ streamType: data[12] >>> 2 & 0x3f,
+ bufferSize: data[13] << 16 | data[14] << 8 | data[15],
+ maxBitrate: data[16] << 24 | data[17] << 16 | data[18] << 8 | data[19],
+ avgBitrate: data[20] << 24 | data[21] << 16 | data[22] << 8 | data[23],
+ decoderConfigDescriptor: {
+ tag: data[24],
+ length: data[25],
+ audioObjectType: data[26] >>> 3 & 0x1f,
+ samplingFrequencyIndex: (data[26] & 0x07) << 1 | data[27] >>> 7 & 0x01,
+ channelConfiguration: data[27] >>> 3 & 0x0f
+ }
+ }
+ };
+ },
+ ftyp: function ftyp(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ majorBrand: parseType$1(data.subarray(0, 4)),
+ minorVersion: view.getUint32(4),
+ compatibleBrands: []
+ },
+ i = 8;
+ while (i < data.byteLength) {
+ result.compatibleBrands.push(parseType$1(data.subarray(i, i + 4)));
+ i += 4;
+ }
+ return result;
+ },
+ dinf: function dinf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ dref: function dref(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ dataReferences: inspectMp4(data.subarray(8))
+ };
+ },
+ hdlr: function hdlr(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ handlerType: parseType$1(data.subarray(8, 12)),
+ name: ''
+ },
+ i = 8;
+
+ // parse out the name field
+ for (i = 24; i < data.byteLength; i++) {
+ if (data[i] === 0x00) {
+ // the name field is null-terminated
+ i++;
+ break;
+ }
+ result.name += String.fromCharCode(data[i]);
+ }
+ // decode UTF-8 to javascript's internal representation
+ // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ result.name = decodeURIComponent(escape(result.name));
+
+ return result;
+ },
+ mdat: function mdat(data) {
+ return {
+ byteLength: data.byteLength,
+ nals: nalParse(data)
+ };
+ },
+ mdhd: function mdhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ language,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ language: ''
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ // language is stored as an ISO-639-2/T code in an array of three 5-bit fields
+ // each field is the packed difference between its ASCII value and 0x60
+ language = view.getUint16(i);
+ result.language += String.fromCharCode((language >> 10) + 0x60);
+ result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60);
+ result.language += String.fromCharCode((language & 0x1f) + 0x60);
+
+ return result;
+ },
+ mdia: function mdia(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mfhd: function mfhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sequenceNumber: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ },
+ minf: function minf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ mp4a: function mp4a(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ // 6 bytes reserved
+ dataReferenceIndex: view.getUint16(6),
+ // 4 + 4 bytes reserved
+ channelcount: view.getUint16(16),
+ samplesize: view.getUint16(18),
+ // 2 bytes pre_defined
+ // 2 bytes reserved
+ samplerate: view.getUint16(24) + view.getUint16(26) / 65536
+ };
+
+ // if there are more bytes to process, assume this is an ISO/IEC
+ // 14496-14 MP4AudioSampleEntry and parse the ESDBox
+ if (data.byteLength > 28) {
+ result.streamDescriptor = inspectMp4(data.subarray(28))[0];
+ }
+ return result;
+ },
+ moof: function moof(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ moov: function moov(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvex: function mvex(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvhd: function mvhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+
+ // convert fixed-point, base 16 back to a number
+ result.rate = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ i += 2 * 4;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ i += 6 * 4;
+ result.nextTrackId = view.getUint32(i);
+ return result;
+ },
+ pdin: function pdin(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ rate: view.getUint32(4),
+ initialDelay: view.getUint32(8)
+ };
+ },
+ sdtp: function sdtp(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ i;
+
+ for (i = 4; i < data.byteLength; i++) {
+ result.samples.push({
+ dependsOn: (data[i] & 0x30) >> 4,
+ isDependedOn: (data[i] & 0x0c) >> 2,
+ hasRedundancy: data[i] & 0x03
+ });
+ }
+ return result;
+ },
+ sidx: function sidx(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ references: [],
+ referenceId: view.getUint32(4),
+ timescale: view.getUint32(8),
+ earliestPresentationTime: view.getUint32(12),
+ firstOffset: view.getUint32(16)
+ },
+ referenceCount = view.getUint16(22),
+ i;
+
+ for (i = 24; referenceCount; i += 12, referenceCount--) {
+ result.references.push({
+ referenceType: (data[i] & 0x80) >>> 7,
+ referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+ subsegmentDuration: view.getUint32(i + 4),
+ startsWithSap: !!(data[i + 8] & 0x80),
+ sapType: (data[i + 8] & 0x70) >>> 4,
+ sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+ });
+ }
+
+ return result;
+ },
+ smhd: function smhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ balance: data[4] + data[5] / 256
+ };
+ },
+ stbl: function stbl(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ stco: function stco(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ chunkOffsets: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+ for (i = 8; entryCount; i += 4, entryCount--) {
+ result.chunkOffsets.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stsc: function stsc(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ entryCount = view.getUint32(4),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleToChunks: []
+ },
+ i;
+ for (i = 8; entryCount; i += 12, entryCount--) {
+ result.sampleToChunks.push({
+ firstChunk: view.getUint32(i),
+ samplesPerChunk: view.getUint32(i + 4),
+ sampleDescriptionIndex: view.getUint32(i + 8)
+ });
+ }
+ return result;
+ },
+ stsd: function stsd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleDescriptions: inspectMp4(data.subarray(8))
+ };
+ },
+ stsz: function stsz(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleSize: view.getUint32(4),
+ entries: []
+ },
+ i;
+ for (i = 12; i < data.byteLength; i += 4) {
+ result.entries.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stts: function stts(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ timeToSamples: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+
+ for (i = 8; entryCount; i += 8, entryCount--) {
+ result.timeToSamples.push({
+ sampleCount: view.getUint32(i),
+ sampleDelta: view.getUint32(i + 4)
+ });
+ }
+ return result;
+ },
+ styp: function styp(data) {
+ return parse$$1.ftyp(data);
+ },
+ tfdt: function tfdt(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ baseMediaDecodeTime: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ if (result.version === 1) {
+ result.baseMediaDecodeTime *= Math.pow(2, 32);
+ result.baseMediaDecodeTime += data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11];
+ }
+ return result;
+ },
+ tfhd: function tfhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4)
+ },
+ baseDataOffsetPresent = result.flags[2] & 0x01,
+ sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+ defaultSampleDurationPresent = result.flags[2] & 0x08,
+ defaultSampleSizePresent = result.flags[2] & 0x10,
+ defaultSampleFlagsPresent = result.flags[2] & 0x20,
+ durationIsEmpty = result.flags[0] & 0x010000,
+ defaultBaseIsMoof = result.flags[0] & 0x020000,
+ i;
+
+ i = 8;
+ if (baseDataOffsetPresent) {
+ i += 4; // truncate top 4 bytes
+ // FIXME: should we read the full 64 bits?
+ result.baseDataOffset = view.getUint32(12);
+ i += 4;
+ }
+ if (sampleDescriptionIndexPresent) {
+ result.sampleDescriptionIndex = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleDurationPresent) {
+ result.defaultSampleDuration = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleSizePresent) {
+ result.defaultSampleSize = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleFlagsPresent) {
+ result.defaultSampleFlags = view.getUint32(i);
+ }
+ if (durationIsEmpty) {
+ result.durationIsEmpty = true;
+ }
+ if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+ result.baseDataOffsetIsMoof = true;
+ }
+ return result;
+ },
+ tkhd: function tkhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ i += 2 * 4;
+ result.layer = view.getUint16(i);
+ i += 2;
+ result.alternateGroup = view.getUint16(i);
+ i += 2;
+ // convert fixed-point, base 16 back to a number
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ result.width = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.height = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ return result;
+ },
+ traf: function traf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trak: function trak(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trex: function trex(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4),
+ defaultSampleDescriptionIndex: view.getUint32(8),
+ defaultSampleDuration: view.getUint32(12),
+ defaultSampleSize: view.getUint32(16),
+ sampleDependsOn: data[20] & 0x03,
+ sampleIsDependedOn: (data[21] & 0xc0) >> 6,
+ sampleHasRedundancy: (data[21] & 0x30) >> 4,
+ samplePaddingValue: (data[21] & 0x0e) >> 1,
+ sampleIsDifferenceSample: !!(data[21] & 0x01),
+ sampleDegradationPriority: view.getUint16(22)
+ };
+ },
+ trun: function trun(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+
+
+ // Flag interpretation
+ dataOffsetPresent = result.flags[2] & 0x01,
+
+
+ // compare with 2nd byte of 0x1
+ firstSampleFlagsPresent = result.flags[2] & 0x04,
+
+
+ // compare with 2nd byte of 0x4
+ sampleDurationPresent = result.flags[1] & 0x01,
+
+
+ // compare with 2nd byte of 0x100
+ sampleSizePresent = result.flags[1] & 0x02,
+
+
+ // compare with 2nd byte of 0x200
+ sampleFlagsPresent = result.flags[1] & 0x04,
+
+
+ // compare with 2nd byte of 0x400
+ sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+
+
+ // compare with 2nd byte of 0x800
+ sampleCount = view.getUint32(4),
+ offset = 8,
+ sample;
+
+ if (dataOffsetPresent) {
+ // 32 bit signed integer
+ result.dataOffset = view.getInt32(offset);
+ offset += 4;
+ }
+
+ // Overrides the flags for the first sample only. The order of
+ // optional values will be: duration, size, compositionTimeOffset
+ if (firstSampleFlagsPresent && sampleCount) {
+ sample = {
+ flags: parseSampleFlags(data.subarray(offset, offset + 4))
+ };
+ offset += 4;
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ sampleCount--;
+ }
+
+ while (sampleCount--) {
+ sample = {};
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleFlagsPresent) {
+ sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ }
+ return result;
+ },
+ 'url ': function url(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ },
+ vmhd: function vmhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ graphicsmode: view.getUint16(4),
+ opcolor: new Uint16Array([view.getUint16(6), view.getUint16(8), view.getUint16(10)])
+ };
+ }
+ };
+
+ /**
+ * Return a javascript array of box objects parsed from an ISO base
+ * media file.
+ * @param data {Uint8Array} the binary data of the media to be inspected
+ * @return {array} a javascript array of potentially nested box objects
+ */
+ inspectMp4 = function inspectMp4(data) {
+ var i = 0,
+ result = [],
+ view,
+ size,
+ type,
+ end,
+ box;
+
+ // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API
+ var ab = new ArrayBuffer(data.length);
+ var v = new Uint8Array(ab);
+ for (var z = 0; z < data.length; ++z) {
+ v[z] = data[z];
+ }
+ view = new DataView(ab);
+
+ while (i < data.byteLength) {
+ // parse box data
+ size = view.getUint32(i);
+ type = parseType$1(data.subarray(i + 4, i + 8));
+ end = size > 1 ? i + size : data.byteLength;
+
+ // parse type-specific data
+ box = (parse$$1[type] || function (data) {
+ return {
+ data: data
+ };
+ })(data.subarray(i + 8, end));
+ box.size = size;
+ box.type = type;
+
+ // store this box and move to the next
+ result.push(box);
+ i = end;
+ }
+ return result;
+ };
+
+ /**
+ * Returns a textual representation of the javascript represtentation
+ * of an MP4 file. You can use it as an alternative to
+ * JSON.stringify() to compare inspected MP4s.
+ * @param inspectedMp4 {array} the parsed array of boxes in an MP4
+ * file
+ * @param depth {number} (optional) the number of ancestor boxes of
+ * the elements of inspectedMp4. Assumed to be zero if unspecified.
+ * @return {string} a text representation of the parsed MP4
+ */
+ _textifyMp = function textifyMp4(inspectedMp4, depth) {
+ var indent;
+ depth = depth || 0;
+ indent = new Array(depth * 2 + 1).join(' ');
+
+ // iterate over all the boxes
+ return inspectedMp4.map(function (box, index) {
+
+ // list the box type first at the current indentation level
+ return indent + box.type + '\n' +
+
+ // the type is already included and handle child boxes separately
+ Object.keys(box).filter(function (key) {
+ return key !== 'type' && key !== 'boxes';
+
+ // output all the box properties
+ }).map(function (key) {
+ var prefix = indent + ' ' + key + ': ',
+ value = box[key];
+
+ // print out raw bytes as hexademical
+ if (value instanceof Uint8Array || value instanceof Uint32Array) {
+ var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)).map(function (byte) {
+ return ' ' + ('00' + byte.toString(16)).slice(-2);
+ }).join('').match(/.{1,24}/g);
+ if (!bytes) {
+ return prefix + '<>';
+ }
+ if (bytes.length === 1) {
+ return prefix + '<' + bytes.join('').slice(1) + '>';
+ }
+ return prefix + '<\n' + bytes.map(function (line) {
+ return indent + ' ' + line;
+ }).join('\n') + '\n' + indent + ' >';
+ }
+
+ // stringify generic objects
+ return prefix + JSON.stringify(value, null, 2).split('\n').map(function (line, index) {
+ if (index === 0) {
+ return line;
+ }
+ return indent + ' ' + line;
+ }).join('\n');
+ }).join('\n') + (
+
+ // recursively textify the child boxes
+ box.boxes ? '\n' + _textifyMp(box.boxes, depth + 1) : '');
+ }).join('\n');
+ };
+
+ var mp4Inspector = {
+ inspect: inspectMp4,
+ textify: _textifyMp,
+ parseTfdt: parse$$1.tfdt,
+ parseHdlr: parse$$1.hdlr,
+ parseTfhd: parse$$1.tfhd,
+ parseTrun: parse$$1.trun
+ };
+
+ var discardEmulationPreventionBytes$1 = captionPacketParser.discardEmulationPreventionBytes;
+ var CaptionStream$1 = captionStream.CaptionStream;
+
+ /**
+ * Maps an offset in the mdat to a sample based on the the size of the samples.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Number} offset - The offset into the mdat
+ * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+ * @return {?Object} The matching sample, or null if no match was found.
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var mapToSample = function mapToSample(offset, samples) {
+ var approximateOffset = offset;
+
+ for (var i = 0; i < samples.length; i++) {
+ var sample = samples[i];
+
+ if (approximateOffset < sample.size) {
+ return sample;
+ }
+
+ approximateOffset -= sample.size;
+ }
+
+ return null;
+ };
+
+ /**
+ * Finds SEI nal units contained in a Media Data Box.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Uint8Array} avcStream - The bytes of the mdat
+ * @param {Object[]} samples - The samples parsed out by `parseSamples`
+ * @param {Number} trackId - The trackId of this video track
+ * @return {Object[]} seiNals - the parsed SEI NALUs found.
+ * The contents of the seiNal should match what is expected by
+ * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+ *
+ * @see ISO-BMFF-12/2015, Section 8.1.1
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ **/
+ var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ seiNal,
+ i,
+ length,
+ lastMatchedSample;
+
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // Bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x06:
+ var data = avcStream.subarray(i + 1, i + 1 + length);
+ var matchingSample = mapToSample(i, samples);
+
+ seiNal = {
+ nalUnitType: 'sei_rbsp',
+ size: length,
+ data: data,
+ escapedRBSP: discardEmulationPreventionBytes$1(data),
+ trackId: trackId
+ };
+
+ if (matchingSample) {
+ seiNal.pts = matchingSample.pts;
+ seiNal.dts = matchingSample.dts;
+ lastMatchedSample = matchingSample;
+ } else {
+ // If a matching sample cannot be found, use the last
+ // sample's values as they should be as close as possible
+ seiNal.pts = lastMatchedSample.pts;
+ seiNal.dts = lastMatchedSample.dts;
+ }
+
+ result.push(seiNal);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ /**
+ * Parses sample information out of Track Run Boxes and calculates
+ * the absolute presentation and decode timestamps of each sample.
+ *
+ * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+ * @param {Number} baseMediaDecodeTime - base media decode time from tfdt
+ @see ISO-BMFF-12/2015, Section 8.8.12
+ * @param {Object} tfhd - The parsed Track Fragment Header
+ * @see inspect.parseTfhd
+ * @return {Object[]} the parsed samples
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
+ var currentDts = baseMediaDecodeTime;
+ var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+ var defaultSampleSize = tfhd.defaultSampleSize || 0;
+ var trackId = tfhd.trackId;
+ var allSamples = [];
+
+ truns.forEach(function (trun) {
+ // Note: We currently do not parse the sample table as well
+ // as the trun. It's possible some sources will require this.
+ // moov > trak > mdia > minf > stbl
+ var trackRun = mp4Inspector.parseTrun(trun);
+ var samples = trackRun.samples;
+
+ samples.forEach(function (sample) {
+ if (sample.duration === undefined) {
+ sample.duration = defaultSampleDuration;
+ }
+ if (sample.size === undefined) {
+ sample.size = defaultSampleSize;
+ }
+ sample.trackId = trackId;
+ sample.dts = currentDts;
+ if (sample.compositionTimeOffset === undefined) {
+ sample.compositionTimeOffset = 0;
+ }
+ sample.pts = currentDts + sample.compositionTimeOffset;
+
+ currentDts += sample.duration;
+ });
+
+ allSamples = allSamples.concat(samples);
+ });
+
+ return allSamples;
+ };
+
+ /**
+ * Parses out caption nals from an FMP4 segment's video tracks.
+ *
+ * @param {Uint8Array} segment - The bytes of a single segment
+ * @param {Number} videoTrackId - The trackId of a video track in the segment
+ * @return {Object.<Number, Object[]>} A mapping of video trackId to
+ * a list of seiNals found in that track
+ **/
+ var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
+ // To get the samples
+ var trafs = probe.findBox(segment, ['moof', 'traf']);
+ // To get SEI NAL units
+ var mdats = probe.findBox(segment, ['mdat']);
+ var captionNals = {};
+ var mdatTrafPairs = [];
+
+ // Pair up each traf with a mdat as moofs and mdats are in pairs
+ mdats.forEach(function (mdat, index) {
+ var matchingTraf = trafs[index];
+ mdatTrafPairs.push({
+ mdat: mdat,
+ traf: matchingTraf
+ });
+ });
+
+ mdatTrafPairs.forEach(function (pair) {
+ var mdat = pair.mdat;
+ var traf = pair.traf;
+ var tfhd = probe.findBox(traf, ['tfhd']);
+ // Exactly 1 tfhd per traf
+ var headerInfo = mp4Inspector.parseTfhd(tfhd[0]);
+ var trackId = headerInfo.trackId;
+ var tfdt = probe.findBox(traf, ['tfdt']);
+ // Either 0 or 1 tfdt per traf
+ var baseMediaDecodeTime = tfdt.length > 0 ? mp4Inspector.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
+ var truns = probe.findBox(traf, ['trun']);
+ var samples;
+ var seiNals;
+
+ // Only parse video data for the chosen video track
+ if (videoTrackId === trackId && truns.length > 0) {
+ samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+
+ seiNals = findSeiNals(mdat, samples, trackId);
+
+ if (!captionNals[trackId]) {
+ captionNals[trackId] = [];
+ }
+
+ captionNals[trackId] = captionNals[trackId].concat(seiNals);
+ }
+ });
+
+ return captionNals;
+ };
+
+ /**
+ * Parses out inband captions from an MP4 container and returns
+ * caption objects that can be used by WebVTT and the TextTrack API.
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+ * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number} trackId - The id of the video track to parse
+ * @param {Number} timescale - The timescale for the video track from the init segment
+ *
+ * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+ * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+ * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+ * @return {String} parsedCaptions[].text - The visible content of the caption
+ **/
+ var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
+ var seiNals;
+
+ if (!trackId) {
+ return null;
+ }
+
+ seiNals = parseCaptionNals(segment, trackId);
+
+ return {
+ seiNals: seiNals[trackId],
+ timescale: timescale
+ };
+ };
+
+ /**
+ * Converts SEI NALUs into captions that can be used by video.js
+ **/
+ var CaptionParser$$1 = function CaptionParser$$1() {
+ var isInitialized = false;
+ var captionStream$$1;
+
+ // Stores segments seen before trackId and timescale are set
+ var segmentCache;
+ // Stores video track ID of the track being parsed
+ var trackId;
+ // Stores the timescale of the track being parsed
+ var timescale;
+ // Stores captions parsed so far
+ var parsedCaptions;
+
+ /**
+ * A method to indicate whether a CaptionParser has been initalized
+ * @returns {Boolean}
+ **/
+ this.isInitialized = function () {
+ return isInitialized;
+ };
+
+ /**
+ * Initializes the underlying CaptionStream, SEI NAL parsing
+ * and management, and caption collection
+ **/
+ this.init = function () {
+ captionStream$$1 = new CaptionStream$1();
+ isInitialized = true;
+
+ // Collect dispatched captions
+ captionStream$$1.on('data', function (event) {
+ // Convert to seconds in the source's timescale
+ event.startTime = event.startPts / timescale;
+ event.endTime = event.endPts / timescale;
+
+ parsedCaptions.captions.push(event);
+ parsedCaptions.captionStreams[event.stream] = true;
+ });
+ };
+
+ /**
+ * Determines if a new video track will be selected
+ * or if the timescale changed
+ * @return {Boolean}
+ **/
+ this.isNewInit = function (videoTrackIds, timescales) {
+ if (videoTrackIds && videoTrackIds.length === 0 || timescales && (typeof timescales === 'undefined' ? 'undefined' : _typeof(timescales)) === 'object' && Object.keys(timescales).length === 0) {
+ return false;
+ }
+
+ return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+ };
+
+ /**
+ * Parses out SEI captions and interacts with underlying
+ * CaptionStream to return dispatched captions
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+ * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+ * @see parseEmbeddedCaptions
+ * @see m2ts/caption-stream.js
+ **/
+ this.parse = function (segment, videoTrackIds, timescales) {
+ var parsedData;
+
+ if (!this.isInitialized()) {
+ return null;
+
+ // This is not likely to be a video segment
+ } else if (!videoTrackIds || !timescales) {
+ return null;
+ } else if (this.isNewInit(videoTrackIds, timescales)) {
+ // Use the first video track only as there is no
+ // mechanism to switch to other video tracks
+ trackId = videoTrackIds[0];
+ timescale = timescales[trackId];
+
+ // If an init segment has not been seen yet, hold onto segment
+ // data until we have one
+ } else if (!trackId || !timescale) {
+ segmentCache.push(segment);
+ return null;
+ }
+
+ // Now that a timescale and trackId is set, parse cached segments
+ while (segmentCache.length > 0) {
+ var cachedSegment = segmentCache.shift();
+
+ this.parse(cachedSegment, videoTrackIds, timescales);
+ }
+
+ parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+
+ if (parsedData === null || !parsedData.seiNals) {
+ return null;
+ }
+
+ this.pushNals(parsedData.seiNals);
+ // Force the parsed captions to be dispatched
+ this.flushStream();
+
+ return parsedCaptions;
+ };
+
+ /**
+ * Pushes SEI NALUs onto CaptionStream
+ * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+ * Assumes that `parseCaptionNals` has been called first
+ * @see m2ts/caption-stream.js
+ **/
+ this.pushNals = function (nals) {
+ if (!this.isInitialized() || !nals || nals.length === 0) {
+ return null;
+ }
+
+ nals.forEach(function (nal) {
+ captionStream$$1.push(nal);
+ });
+ };
+
+ /**
+ * Flushes underlying CaptionStream to dispatch processed, displayable captions
+ * @see m2ts/caption-stream.js
+ **/
+ this.flushStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.flush();
+ };
+
+ /**
+ * Reset caption buckets for new data
+ **/
+ this.clearParsedCaptions = function () {
+ parsedCaptions.captions = [];
+ parsedCaptions.captionStreams = {};
+ };
+
+ /**
+ * Resets underlying CaptionStream
+ * @see m2ts/caption-stream.js
+ **/
+ this.resetCaptionStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.reset();
+ };
+
+ /**
+ * Convenience method to clear all captions flushed from the
+ * CaptionStream and still being parsed
+ * @see m2ts/caption-stream.js
+ **/
+ this.clearAllCaptions = function () {
+ this.clearParsedCaptions();
+ this.resetCaptionStream();
+ };
+
+ /**
+ * Reset caption parser
+ **/
+ this.reset = function () {
+ segmentCache = [];
+ trackId = null;
+ timescale = null;
+
+ if (!parsedCaptions) {
+ parsedCaptions = {
+ captions: [],
+ // CC1, CC2, CC3, CC4
+ captionStreams: {}
+ };
+ } else {
+ this.clearParsedCaptions();
+ }
+
+ this.resetCaptionStream();
+ };
+
+ this.reset();
+ };
+
+ var captionParser = CaptionParser$$1;
+
+ var mp4 = {
+ generator: mp4Generator,
+ probe: probe,
+ Transmuxer: transmuxer.Transmuxer,
+ AudioSegmentStream: transmuxer.AudioSegmentStream,
+ VideoSegmentStream: transmuxer.VideoSegmentStream,
+ CaptionParser: captionParser
+ };
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ /**
+ * @file transmuxer-worker.js
+ */
+
+ /**
+ * Re-emits transmuxer events by converting them into messages to the
+ * world outside the worker.
+ *
+ * @param {Object} transmuxer the transmuxer to wire events on
+ * @private
+ */
+ var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {
+ transmuxer.on('data', function (segment) {
+ // transfer ownership of the underlying ArrayBuffer
+ // instead of doing a copy to save memory
+ // ArrayBuffers are transferable but generic TypedArrays are not
+ // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
+ var initArray = segment.initSegment;
+
+ segment.initSegment = {
+ data: initArray.buffer,
+ byteOffset: initArray.byteOffset,
+ byteLength: initArray.byteLength
+ };
+
+ var typedArray = segment.data;
+
+ segment.data = typedArray.buffer;
+ self.postMessage({
+ action: 'data',
+ segment: segment,
+ byteOffset: typedArray.byteOffset,
+ byteLength: typedArray.byteLength
+ }, [segment.data]);
+ });
+
+ if (transmuxer.captionStream) {
+ transmuxer.captionStream.on('data', function (caption) {
+ self.postMessage({
+ action: 'caption',
+ data: caption
+ });
+ });
+ }
+
+ transmuxer.on('done', function (data) {
+ self.postMessage({ action: 'done' });
+ });
+
+ transmuxer.on('gopInfo', function (gopInfo) {
+ self.postMessage({
+ action: 'gopInfo',
+ gopInfo: gopInfo
+ });
+ });
+ };
+
+ /**
+ * All incoming messages route through this hash. If no function exists
+ * to handle an incoming message, then we ignore the message.
+ *
+ * @class MessageHandlers
+ * @param {Object} options the options to initialize with
+ */
+
+ var MessageHandlers = function () {
+ function MessageHandlers(self, options) {
+ classCallCheck$$1(this, MessageHandlers);
+
+ this.options = options || {};
+ this.self = self;
+ this.init();
+ }
+
+ /**
+ * initialize our web worker and wire all the events.
+ */
+
+ createClass$$1(MessageHandlers, [{
+ key: 'init',
+ value: function init() {
+ if (this.transmuxer) {
+ this.transmuxer.dispose();
+ }
+ this.transmuxer = new mp4.Transmuxer(this.options);
+ wireTransmuxerEvents(this.self, this.transmuxer);
+ }
+
+ /**
+ * Adds data (a ts segment) to the start of the transmuxer pipeline for
+ * processing.
+ *
+ * @param {ArrayBuffer} data data to push into the muxer
+ */
+
+ }, {
+ key: 'push',
+ value: function push(data) {
+ // Cast array buffer to correct type for transmuxer
+ var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+
+ this.transmuxer.push(segment);
+ }
+
+ /**
+ * Recreate the transmuxer so that the next segment added via `push`
+ * start with a fresh transmuxer.
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.init();
+ }
+
+ /**
+ * Set the value that will be used as the `baseMediaDecodeTime` time for the
+ * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
+ * set relative to the first based on the PTS values.
+ *
+ * @param {Object} data used to set the timestamp offset in the muxer
+ */
+
+ }, {
+ key: 'setTimestampOffset',
+ value: function setTimestampOffset(data) {
+ var timestampOffset = data.timestampOffset || 0;
+
+ this.transmuxer.setBaseMediaDecodeTime(Math.round(timestampOffset * 90000));
+ }
+ }, {
+ key: 'setAudioAppendStart',
+ value: function setAudioAppendStart(data) {
+ this.transmuxer.setAudioAppendStart(Math.ceil(data.appendStart * 90000));
+ }
+
+ /**
+ * Forces the pipeline to finish processing the last segment and emit it's
+ * results.
+ *
+ * @param {Object} data event data, not really used
+ */
+
+ }, {
+ key: 'flush',
+ value: function flush(data) {
+ this.transmuxer.flush();
+ }
+ }, {
+ key: 'resetCaptions',
+ value: function resetCaptions() {
+ this.transmuxer.resetCaptions();
+ }
+ }, {
+ key: 'alignGopsWith',
+ value: function alignGopsWith(data) {
+ this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
+ }
+ }]);
+ return MessageHandlers;
+ }();
+
+ /**
+ * Our web wroker interface so that things can talk to mux.js
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self the scope for the web worker
+ */
+
+ var TransmuxerWorker = function TransmuxerWorker(self) {
+ self.onmessage = function (event) {
+ if (event.data.action === 'init' && event.data.options) {
+ this.messageHandlers = new MessageHandlers(self, event.data.options);
+ return;
+ }
+
+ if (!this.messageHandlers) {
+ this.messageHandlers = new MessageHandlers(self);
+ }
+
+ if (event.data && event.data.action && event.data.action !== 'init') {
+ if (this.messageHandlers[event.data.action]) {
+ this.messageHandlers[event.data.action](event.data);
+ }
+ }
+ };
+ };
+
+ var transmuxerWorker = new TransmuxerWorker(self);
+
+ return transmuxerWorker;
+ }();
+});
+
+/**
+ * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
+ * codec strings, or translating codec strings into objects that can be examined.
+ */
+
+// Default codec parameters if none were provided for video and/or audio
+var defaultCodecs = {
+ videoCodec: 'avc1',
+ videoObjectTypeIndicator: '.4d400d',
+ // AAC-LC
+ audioProfile: '2'
+};
+
+/**
+ * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
+ * `avc1.<hhhhhh>`
+ *
+ * @param {Array} codecs an array of codec strings to fix
+ * @return {Array} the translated codec array
+ * @private
+ */
+var translateLegacyCodecs = function translateLegacyCodecs(codecs) {
+ return codecs.map(function (codec) {
+ return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
+ var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
+ var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
+
+ return 'avc1.' + profileHex + '00' + avcLevelHex;
+ });
+ });
+};
+
+/**
+ * Parses a codec string to retrieve the number of codecs specified,
+ * the video codec and object type indicator, and the audio profile.
+ */
+
+var parseCodecs = function parseCodecs() {
+ var codecs = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var result = {
+ codecCount: 0
+ };
+ var parsed = void 0;
+
+ result.codecCount = codecs.split(',').length;
+ result.codecCount = result.codecCount || 2;
+
+ // parse the video codec
+ parsed = /(^|\s|,)+(avc[13])([^ ,]*)/i.exec(codecs);
+ if (parsed) {
+ result.videoCodec = parsed[2];
+ result.videoObjectTypeIndicator = parsed[3];
+ }
+
+ // parse the last field of the audio codec
+ result.audioProfile = /(^|\s|,)+mp4a.[0-9A-Fa-f]+\.([0-9A-Fa-f]+)/i.exec(codecs);
+ result.audioProfile = result.audioProfile && result.audioProfile[2];
+
+ return result;
+};
+
+/**
+ * Replace codecs in the codec string with the old apple-style `avc1.<dd>.<dd>` to the
+ * standard `avc1.<hhhhhh>`.
+ *
+ * @param codecString {String} the codec string
+ * @return {String} the codec string with old apple-style codecs replaced
+ *
+ * @private
+ */
+var mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {
+ return codecString.replace(/avc1\.(\d+)\.(\d+)/i, function (match) {
+ return translateLegacyCodecs([match])[0];
+ });
+};
+
+/**
+ * Build a media mime-type string from a set of parameters
+ * @param {String} type either 'audio' or 'video'
+ * @param {String} container either 'mp2t' or 'mp4'
+ * @param {Array} codecs an array of codec strings to add
+ * @return {String} a valid media mime-type
+ */
+var makeMimeTypeString = function makeMimeTypeString(type, container, codecs) {
+ // The codecs array is filtered so that falsey values are
+ // dropped and don't cause Array#join to create spurious
+ // commas
+ return type + '/' + container + '; codecs="' + codecs.filter(function (c) {
+ return !!c;
+ }).join(', ') + '"';
+};
+
+/**
+ * Returns the type container based on information in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {String} a valid media container type
+ */
+var getContainerType = function getContainerType(media) {
+ // An initialization segment means the media playlist is an iframe
+ // playlist or is using the mp4 container. We don't currently
+ // support iframe playlists, so assume this is signalling mp4
+ // fragments.
+ if (media.segments && media.segments.length && media.segments[0].map) {
+ return 'mp4';
+ }
+ return 'mp2t';
+};
+
+/**
+ * Returns a set of codec strings parsed from the playlist or the default
+ * codec strings if no codecs were specified in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {Object} an object with the video and audio codecs
+ */
+var getCodecs = function getCodecs(media) {
+ // if the codecs were explicitly specified, use them instead of the
+ // defaults
+ var mediaAttributes = media.attributes || {};
+
+ if (mediaAttributes.CODECS) {
+ return parseCodecs(mediaAttributes.CODECS);
+ }
+ return defaultCodecs;
+};
+
+var audioProfileFromDefault = function audioProfileFromDefault(master, audioGroupId) {
+ if (!master.mediaGroups.AUDIO || !audioGroupId) {
+ return null;
+ }
+
+ var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
+
+ if (!audioGroup) {
+ return null;
+ }
+
+ for (var name in audioGroup) {
+ var audioType = audioGroup[name];
+
+ if (audioType.default && audioType.playlists) {
+ // codec should be the same for all playlists within the audio type
+ return parseCodecs(audioType.playlists[0].attributes.CODECS).audioProfile;
+ }
+ }
+
+ return null;
+};
+
+/**
+ * Calculates the MIME type strings for a working configuration of
+ * SourceBuffers to play variant streams in a master playlist. If
+ * there is no possible working configuration, an empty array will be
+ * returned.
+ *
+ * @param master {Object} the m3u8 object for the master playlist
+ * @param media {Object} the m3u8 object for the variant playlist
+ * @return {Array} the MIME type strings. If the array has more than
+ * one entry, the first element should be applied to the video
+ * SourceBuffer and the second to the audio SourceBuffer.
+ *
+ * @private
+ */
+var mimeTypesForPlaylist = function mimeTypesForPlaylist(master, media) {
+ var containerType = getContainerType(media);
+ var codecInfo = getCodecs(media);
+ var mediaAttributes = media.attributes || {};
+ // Default condition for a traditional HLS (no demuxed audio/video)
+ var isMuxed = true;
+ var isMaat = false;
+
+ if (!media) {
+ // Not enough information
+ return [];
+ }
+
+ if (master.mediaGroups.AUDIO && mediaAttributes.AUDIO) {
+ var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+
+ // Handle the case where we are in a multiple-audio track scenario
+ if (audioGroup) {
+ isMaat = true;
+ // Start with the everything demuxed then...
+ isMuxed = false;
+ // ...check to see if any audio group tracks are muxed (ie. lacking a uri)
+ for (var groupId in audioGroup) {
+ // either a uri is present (if the case of HLS and an external playlist), or
+ // playlists is present (in the case of DASH where we don't have external audio
+ // playlists)
+ if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+ isMuxed = true;
+ break;
+ }
+ }
+ }
+ }
+
+ // HLS with multiple-audio tracks must always get an audio codec.
+ // Put another way, there is no way to have a video-only multiple-audio HLS!
+ if (isMaat && !codecInfo.audioProfile) {
+ if (!isMuxed) {
+ // It is possible for codecs to be specified on the audio media group playlist but
+ // not on the rendition playlist. This is mostly the case for DASH, where audio and
+ // video are always separate (and separately specified).
+ codecInfo.audioProfile = audioProfileFromDefault(master, mediaAttributes.AUDIO);
+ }
+
+ if (!codecInfo.audioProfile) {
+ videojs$1.log.warn('Multiple audio tracks present but no audio codec string is specified. ' + 'Attempting to use the default audio codec (mp4a.40.2)');
+ codecInfo.audioProfile = defaultCodecs.audioProfile;
+ }
+ }
+
+ // Generate the final codec strings from the codec object generated above
+ var codecStrings = {};
+
+ if (codecInfo.videoCodec) {
+ codecStrings.video = '' + codecInfo.videoCodec + codecInfo.videoObjectTypeIndicator;
+ }
+
+ if (codecInfo.audioProfile) {
+ codecStrings.audio = 'mp4a.40.' + codecInfo.audioProfile;
+ }
+
+ // Finally, make and return an array with proper mime-types depending on
+ // the configuration
+ var justAudio = makeMimeTypeString('audio', containerType, [codecStrings.audio]);
+ var justVideo = makeMimeTypeString('video', containerType, [codecStrings.video]);
+ var bothVideoAudio = makeMimeTypeString('video', containerType, [codecStrings.video, codecStrings.audio]);
+
+ if (isMaat) {
+ if (!isMuxed && codecStrings.video) {
+ return [justVideo, justAudio];
+ }
+
+ if (!isMuxed && !codecStrings.video) {
+ // There is no muxed content and no video codec string, so this is an audio only
+ // stream with alternate audio.
+ return [justAudio, justAudio];
+ }
+
+ // There exists the possiblity that this will return a `video/container`
+ // mime-type for the first entry in the array even when there is only audio.
+ // This doesn't appear to be a problem and simplifies the code.
+ return [bothVideoAudio, justAudio];
+ }
+
+ // If there is no video codec at all, always just return a single
+ // audio/<container> mime-type
+ if (!codecStrings.video) {
+ return [justAudio];
+ }
+
+ // When not using separate audio media groups, audio and video is
+ // *always* muxed
+ return [bothVideoAudio];
+};
+
+/**
+ * Parse a content type header into a type and parameters
+ * object
+ *
+ * @param {String} type the content type header
+ * @return {Object} the parsed content-type
+ * @private
+ */
+var parseContentType = function parseContentType(type) {
+ var object = { type: '', parameters: {} };
+ var parameters = type.trim().split(';');
+
+ // first parameter should always be content-type
+ object.type = parameters.shift().trim();
+ parameters.forEach(function (parameter) {
+ var pair = parameter.trim().split('=');
+
+ if (pair.length > 1) {
+ var name = pair[0].replace(/"/g, '').trim();
+ var value = pair[1].replace(/"/g, '').trim();
+
+ object.parameters[name] = value;
+ }
+ });
+
+ return object;
+};
+
+/**
+ * Check if a codec string refers to an audio codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is an audio codec
+ * @private
+ */
+var isAudioCodec = function isAudioCodec(codec) {
+ return (/mp4a\.\d+.\d+/i.test(codec)
+ );
+};
+
+/**
+ * Check if a codec string refers to a video codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is a video codec
+ * @private
+ */
+var isVideoCodec = function isVideoCodec(codec) {
+ return (/avc1\.[\da-f]+/i.test(codec)
+ );
+};
+
+/**
+ * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
+ * front of current time.
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Number} currentTime
+ * The current time
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ * @return {Array}
+ * List of gops considered safe to append over
+ */
+var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {
+ if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
+ return [];
+ }
+
+ // pts value for current time + 3 seconds to give a bit more wiggle room
+ var currentTimePts = Math.ceil((currentTime - mapping + 3) * 90000);
+
+ var i = void 0;
+
+ for (i = 0; i < buffer.length; i++) {
+ if (buffer[i].pts > currentTimePts) {
+ break;
+ }
+ }
+
+ return buffer.slice(i);
+};
+
+/**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Array} gops
+ * List of new gop information
+ * @param {boolean} replace
+ * If true, replace the buffer with the new gop information. If false, append the
+ * new gop information to the buffer in the right location of time.
+ * @return {Array}
+ * Updated list of gop information
+ */
+var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {
+ if (!gops.length) {
+ return buffer;
+ }
+
+ if (replace) {
+ // If we are in safe append mode, then completely overwrite the gop buffer
+ // with the most recent appeneded data. This will make sure that when appending
+ // future segments, we only try to align with gops that are both ahead of current
+ // time and in the last segment appended.
+ return gops.slice();
+ }
+
+ var start = gops[0].pts;
+
+ var i = 0;
+
+ for (i; i < buffer.length; i++) {
+ if (buffer[i].pts >= start) {
+ break;
+ }
+ }
+
+ return buffer.slice(0, i).concat(gops);
+};
+
+/**
+ * Removes gop information in buffer that overlaps with provided start and end
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Double} start
+ * position to start the remove at
+ * @param {Double} end
+ * position to end the remove at
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ */
+var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {
+ var startPts = Math.ceil((start - mapping) * 90000);
+ var endPts = Math.ceil((end - mapping) * 90000);
+ var updatedBuffer = buffer.slice();
+
+ var i = buffer.length;
+
+ while (i--) {
+ if (buffer[i].pts <= endPts) {
+ break;
+ }
+ }
+
+ if (i === -1) {
+ // no removal because end of remove range is before start of buffer
+ return updatedBuffer;
+ }
+
+ var j = i + 1;
+
+ while (j--) {
+ if (buffer[j].pts <= startPts) {
+ break;
+ }
+ }
+
+ // clamp remove range start to 0 index
+ j = Math.max(j, 0);
+
+ updatedBuffer.splice(j, i - j + 1);
+
+ return updatedBuffer;
+};
+
+var buffered = function buffered(videoBuffer, audioBuffer, audioDisabled) {
+ var start = null;
+ var end = null;
+ var arity = 0;
+ var extents = [];
+ var ranges = [];
+
+ // neither buffer has been created yet
+ if (!videoBuffer && !audioBuffer) {
+ return videojs$1.createTimeRange();
+ }
+
+ // only one buffer is configured
+ if (!videoBuffer) {
+ return audioBuffer.buffered;
+ }
+ if (!audioBuffer) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are configured
+ if (audioDisabled) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are empty
+ if (videoBuffer.buffered.length === 0 && audioBuffer.buffered.length === 0) {
+ return videojs$1.createTimeRange();
+ }
+
+ // Handle the case where we have both buffers and create an
+ // intersection of the two
+ var videoBuffered = videoBuffer.buffered;
+ var audioBuffered = audioBuffer.buffered;
+ var count = videoBuffered.length;
+
+ // A) Gather up all start and end times
+ while (count--) {
+ extents.push({ time: videoBuffered.start(count), type: 'start' });
+ extents.push({ time: videoBuffered.end(count), type: 'end' });
+ }
+ count = audioBuffered.length;
+ while (count--) {
+ extents.push({ time: audioBuffered.start(count), type: 'start' });
+ extents.push({ time: audioBuffered.end(count), type: 'end' });
+ }
+ // B) Sort them by time
+ extents.sort(function (a, b) {
+ return a.time - b.time;
+ });
+
+ // C) Go along one by one incrementing arity for start and decrementing
+ // arity for ends
+ for (count = 0; count < extents.length; count++) {
+ if (extents[count].type === 'start') {
+ arity++;
+
+ // D) If arity is ever incremented to 2 we are entering an
+ // overlapping range
+ if (arity === 2) {
+ start = extents[count].time;
+ }
+ } else if (extents[count].type === 'end') {
+ arity--;
+
+ // E) If arity is ever decremented to 1 we leaving an
+ // overlapping range
+ if (arity === 1) {
+ end = extents[count].time;
+ }
+ }
+
+ // F) Record overlapping ranges
+ if (start !== null && end !== null) {
+ ranges.push([start, end]);
+ start = null;
+ end = null;
+ }
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+};
+
+/**
+ * @file virtual-source-buffer.js
+ */
+
+// We create a wrapper around the SourceBuffer so that we can manage the
+// state of the `updating` property manually. We have to do this because
+// Firefox changes `updating` to false long before triggering `updateend`
+// events and that was causing strange problems in videojs-contrib-hls
+var makeWrappedSourceBuffer = function makeWrappedSourceBuffer(mediaSource, mimeType) {
+ var sourceBuffer = mediaSource.addSourceBuffer(mimeType);
+ var wrapper = Object.create(null);
+
+ wrapper.updating = false;
+ wrapper.realBuffer_ = sourceBuffer;
+
+ var _loop = function _loop(key) {
+ if (typeof sourceBuffer[key] === 'function') {
+ wrapper[key] = function () {
+ return sourceBuffer[key].apply(sourceBuffer, arguments);
+ };
+ } else if (typeof wrapper[key] === 'undefined') {
+ Object.defineProperty(wrapper, key, {
+ get: function get$$1() {
+ return sourceBuffer[key];
+ },
+ set: function set$$1(v) {
+ return sourceBuffer[key] = v;
+ }
+ });
+ }
+ };
+
+ for (var key in sourceBuffer) {
+ _loop(key);
+ }
+
+ return wrapper;
+};
+
+/**
+ * VirtualSourceBuffers exist so that we can transmux non native formats
+ * into a native format, but keep the same api as a native source buffer.
+ * It creates a transmuxer, that works in its own thread (a web worker) and
+ * that transmuxer muxes the data into a native format. VirtualSourceBuffer will
+ * then send all of that data to the naive sourcebuffer so that it is
+ * indestinguishable from a natively supported format.
+ *
+ * @param {HtmlMediaSource} mediaSource the parent mediaSource
+ * @param {Array} codecs array of codecs that we will be dealing with
+ * @class VirtualSourceBuffer
+ * @extends video.js.EventTarget
+ */
+
+var VirtualSourceBuffer = function (_videojs$EventTarget) {
+ inherits$1(VirtualSourceBuffer, _videojs$EventTarget);
+
+ function VirtualSourceBuffer(mediaSource, codecs) {
+ classCallCheck$1(this, VirtualSourceBuffer);
+
+ var _this = possibleConstructorReturn$1(this, (VirtualSourceBuffer.__proto__ || Object.getPrototypeOf(VirtualSourceBuffer)).call(this, videojs$1.EventTarget));
+
+ _this.timestampOffset_ = 0;
+ _this.pendingBuffers_ = [];
+ _this.bufferUpdating_ = false;
+
+ _this.mediaSource_ = mediaSource;
+ _this.codecs_ = codecs;
+ _this.audioCodec_ = null;
+ _this.videoCodec_ = null;
+ _this.audioDisabled_ = false;
+ _this.appendAudioInitSegment_ = true;
+ _this.gopBuffer_ = [];
+ _this.timeMapping_ = 0;
+ _this.safeAppend_ = videojs$1.browser.IE_VERSION >= 11;
+
+ var options = {
+ remux: false,
+ alignGopsAtEnd: _this.safeAppend_
+ };
+
+ _this.codecs_.forEach(function (codec) {
+ if (isAudioCodec(codec)) {
+ _this.audioCodec_ = codec;
+ } else if (isVideoCodec(codec)) {
+ _this.videoCodec_ = codec;
+ }
+ });
+
+ // append muxed segments to their respective native buffers as
+ // soon as they are available
+ _this.transmuxer_ = new TransmuxWorker();
+ _this.transmuxer_.postMessage({ action: 'init', options: options });
+
+ _this.transmuxer_.onmessage = function (event) {
+ if (event.data.action === 'data') {
+ return _this.data_(event);
+ }
+
+ if (event.data.action === 'done') {
+ return _this.done_(event);
+ }
+
+ if (event.data.action === 'gopInfo') {
+ return _this.appendGopInfo_(event);
+ }
+ };
+
+ // this timestampOffset is a property with the side-effect of resetting
+ // baseMediaDecodeTime in the transmuxer on the setter
+ Object.defineProperty(_this, 'timestampOffset', {
+ get: function get$$1() {
+ return this.timestampOffset_;
+ },
+ set: function set$$1(val) {
+ if (typeof val === 'number' && val >= 0) {
+ this.timestampOffset_ = val;
+ this.appendAudioInitSegment_ = true;
+
+ // reset gop buffer on timestampoffset as this signals a change in timeline
+ this.gopBuffer_.length = 0;
+ this.timeMapping_ = 0;
+
+ // We have to tell the transmuxer to set the baseMediaDecodeTime to
+ // the desired timestampOffset for the next segment
+ this.transmuxer_.postMessage({
+ action: 'setTimestampOffset',
+ timestampOffset: val
+ });
+ }
+ }
+ });
+
+ // setting the append window affects both source buffers
+ Object.defineProperty(_this, 'appendWindowStart', {
+ get: function get$$1() {
+ return (this.videoBuffer_ || this.audioBuffer_).appendWindowStart;
+ },
+ set: function set$$1(start) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.appendWindowStart = start;
+ }
+ if (this.audioBuffer_) {
+ this.audioBuffer_.appendWindowStart = start;
+ }
+ }
+ });
+
+ // this buffer is "updating" if either of its native buffers are
+ Object.defineProperty(_this, 'updating', {
+ get: function get$$1() {
+ return !!(this.bufferUpdating_ || !this.audioDisabled_ && this.audioBuffer_ && this.audioBuffer_.updating || this.videoBuffer_ && this.videoBuffer_.updating);
+ }
+ });
+
+ // the buffered property is the intersection of the buffered
+ // ranges of the native source buffers
+ Object.defineProperty(_this, 'buffered', {
+ get: function get$$1() {
+ return buffered(this.videoBuffer_, this.audioBuffer_, this.audioDisabled_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * When we get a data event from the transmuxer
+ * we call this function and handle the data that
+ * was sent to us
+ *
+ * @private
+ * @param {Event} event the data event from the transmuxer
+ */
+
+ createClass$1(VirtualSourceBuffer, [{
+ key: 'data_',
+ value: function data_(event) {
+ var segment = event.data.segment;
+
+ // Cast ArrayBuffer to TypedArray
+ segment.data = new Uint8Array(segment.data, event.data.byteOffset, event.data.byteLength);
+
+ segment.initSegment = new Uint8Array(segment.initSegment.data, segment.initSegment.byteOffset, segment.initSegment.byteLength);
+
+ createTextTracksIfNecessary(this, this.mediaSource_, segment);
+
+ // Add the segments to the pendingBuffers array
+ this.pendingBuffers_.push(segment);
+ return;
+ }
+
+ /**
+ * When we get a done event from the transmuxer
+ * we call this function and we process all
+ * of the pending data that we have been saving in the
+ * data_ function
+ *
+ * @private
+ * @param {Event} event the done event from the transmuxer
+ */
+
+ }, {
+ key: 'done_',
+ value: function done_(event) {
+ // Don't process and append data if the mediaSource is closed
+ if (this.mediaSource_.readyState === 'closed') {
+ this.pendingBuffers_.length = 0;
+ return;
+ }
+
+ // All buffers should have been flushed from the muxer
+ // start processing anything we have received
+ this.processPendingSegments_();
+ return;
+ }
+
+ /**
+ * Create our internal native audio/video source buffers and add
+ * event handlers to them with the following conditions:
+ * 1. they do not already exist on the mediaSource
+ * 2. this VSB has a codec for them
+ *
+ * @private
+ */
+
+ }, {
+ key: 'createRealSourceBuffers_',
+ value: function createRealSourceBuffers_() {
+ var _this2 = this;
+
+ var types = ['audio', 'video'];
+
+ types.forEach(function (type) {
+ // Don't create a SourceBuffer of this type if we don't have a
+ // codec for it
+ if (!_this2[type + 'Codec_']) {
+ return;
+ }
+
+ // Do nothing if a SourceBuffer of this type already exists
+ if (_this2[type + 'Buffer_']) {
+ return;
+ }
+
+ var buffer = null;
+
+ // If the mediasource already has a SourceBuffer for the codec
+ // use that
+ if (_this2.mediaSource_[type + 'Buffer_']) {
+ buffer = _this2.mediaSource_[type + 'Buffer_'];
+ // In multiple audio track cases, the audio source buffer is disabled
+ // on the main VirtualSourceBuffer by the HTMLMediaSource much earlier
+ // than createRealSourceBuffers_ is called to create the second
+ // VirtualSourceBuffer because that happens as a side-effect of
+ // videojs-contrib-hls starting the audioSegmentLoader. As a result,
+ // the audioBuffer is essentially "ownerless" and no one will toggle
+ // the `updating` state back to false once the `updateend` event is received
+ //
+ // Setting `updating` to false manually will work around this
+ // situation and allow work to continue
+ buffer.updating = false;
+ } else {
+ var codecProperty = type + 'Codec_';
+ var mimeType = type + '/mp4;codecs="' + _this2[codecProperty] + '"';
+
+ buffer = makeWrappedSourceBuffer(_this2.mediaSource_.nativeMediaSource_, mimeType);
+
+ _this2.mediaSource_[type + 'Buffer_'] = buffer;
+ }
+
+ _this2[type + 'Buffer_'] = buffer;
+
+ // Wire up the events to the SourceBuffer
+ ['update', 'updatestart', 'updateend'].forEach(function (event) {
+ buffer.addEventListener(event, function () {
+ // if audio is disabled
+ if (type === 'audio' && _this2.audioDisabled_) {
+ return;
+ }
+
+ if (event === 'updateend') {
+ _this2[type + 'Buffer_'].updating = false;
+ }
+
+ var shouldTrigger = types.every(function (t) {
+ // skip checking audio's updating status if audio
+ // is not enabled
+ if (t === 'audio' && _this2.audioDisabled_) {
+ return true;
+ }
+ // if the other type if updating we don't trigger
+ if (type !== t && _this2[t + 'Buffer_'] && _this2[t + 'Buffer_'].updating) {
+ return false;
+ }
+ return true;
+ });
+
+ if (shouldTrigger) {
+ return _this2.trigger(event);
+ }
+ });
+ });
+ });
+ }
+
+ /**
+ * Emulate the native mediasource function, but our function will
+ * send all of the proposed segments to the transmuxer so that we
+ * can transmux them before we append them to our internal
+ * native source buffers in the correct format.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/appendBuffer
+ * @param {Uint8Array} segment the segment to append to the buffer
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(segment) {
+ // Start the internal "updating" state
+ this.bufferUpdating_ = true;
+
+ if (this.audioBuffer_ && this.audioBuffer_.buffered.length) {
+ var audioBuffered = this.audioBuffer_.buffered;
+
+ this.transmuxer_.postMessage({
+ action: 'setAudioAppendStart',
+ appendStart: audioBuffered.end(audioBuffered.length - 1)
+ });
+ }
+
+ if (this.videoBuffer_) {
+ this.transmuxer_.postMessage({
+ action: 'alignGopsWith',
+ gopsToAlignWith: gopsSafeToAlignWith(this.gopBuffer_, this.mediaSource_.player_ ? this.mediaSource_.player_.currentTime() : null, this.timeMapping_)
+ });
+ }
+
+ this.transmuxer_.postMessage({
+ action: 'push',
+ // Send the typed-array of data as an ArrayBuffer so that
+ // it can be sent as a "Transferable" and avoid the costly
+ // memory copy
+ data: segment.buffer,
+
+ // To recreate the original typed-array, we need information
+ // about what portion of the ArrayBuffer it was a view into
+ byteOffset: segment.byteOffset,
+ byteLength: segment.byteLength
+ }, [segment.buffer]);
+ this.transmuxer_.postMessage({ action: 'flush' });
+ }
+
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Event} event
+ * The gopInfo event from the transmuxer
+ * @param {Array} event.data.gopInfo
+ * List of gop info to append
+ */
+
+ }, {
+ key: 'appendGopInfo_',
+ value: function appendGopInfo_(event) {
+ this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, event.data.gopInfo, this.safeAppend_);
+ }
+
+ /**
+ * Emulate the native mediasource function and remove parts
+ * of the buffer from any of our internal buffers that exist
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/remove
+ * @param {Double} start position to start the remove at
+ * @param {Double} end position to end the remove at
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.updating = true;
+ this.videoBuffer_.remove(start, end);
+ this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.updating = true;
+ this.audioBuffer_.remove(start, end);
+ }
+
+ // Remove Metadata Cues (id3)
+ removeCuesFromTrack(start, end, this.metadataTrack_);
+
+ // Remove Any Captions
+ if (this.inbandTextTracks_) {
+ for (var track in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
+ }
+ }
+ }
+
+ /**
+ * Process any segments that the muxer has output
+ * Concatenate segments together based on type and append them into
+ * their respective sourceBuffers
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processPendingSegments_',
+ value: function processPendingSegments_() {
+ var sortedSegments = {
+ video: {
+ segments: [],
+ bytes: 0
+ },
+ audio: {
+ segments: [],
+ bytes: 0
+ },
+ captions: [],
+ metadata: []
+ };
+
+ // Sort segments into separate video/audio arrays and
+ // keep track of their total byte lengths
+ sortedSegments = this.pendingBuffers_.reduce(function (segmentObj, segment) {
+ var type = segment.type;
+ var data = segment.data;
+ var initSegment = segment.initSegment;
+
+ segmentObj[type].segments.push(data);
+ segmentObj[type].bytes += data.byteLength;
+
+ segmentObj[type].initSegment = initSegment;
+
+ // Gather any captions into a single array
+ if (segment.captions) {
+ segmentObj.captions = segmentObj.captions.concat(segment.captions);
+ }
+
+ if (segment.info) {
+ segmentObj[type].info = segment.info;
+ }
+
+ // Gather any metadata into a single array
+ if (segment.metadata) {
+ segmentObj.metadata = segmentObj.metadata.concat(segment.metadata);
+ }
+
+ return segmentObj;
+ }, sortedSegments);
+
+ // Create the real source buffers if they don't exist by now since we
+ // finally are sure what tracks are contained in the source
+ if (!this.videoBuffer_ && !this.audioBuffer_) {
+ // Remove any codecs that may have been specified by default but
+ // are no longer applicable now
+ if (sortedSegments.video.bytes === 0) {
+ this.videoCodec_ = null;
+ }
+ if (sortedSegments.audio.bytes === 0) {
+ this.audioCodec_ = null;
+ }
+
+ this.createRealSourceBuffers_();
+ }
+
+ if (sortedSegments.audio.info) {
+ this.mediaSource_.trigger({ type: 'audioinfo', info: sortedSegments.audio.info });
+ }
+ if (sortedSegments.video.info) {
+ this.mediaSource_.trigger({ type: 'videoinfo', info: sortedSegments.video.info });
+ }
+
+ if (this.appendAudioInitSegment_) {
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ sortedSegments.audio.segments.unshift(sortedSegments.audio.initSegment);
+ sortedSegments.audio.bytes += sortedSegments.audio.initSegment.byteLength;
+ }
+ this.appendAudioInitSegment_ = false;
+ }
+
+ var triggerUpdateend = false;
+
+ // Merge multiple video and audio segments into one and append
+ if (this.videoBuffer_ && sortedSegments.video.bytes) {
+ sortedSegments.video.segments.unshift(sortedSegments.video.initSegment);
+ sortedSegments.video.bytes += sortedSegments.video.initSegment.byteLength;
+ this.concatAndAppendSegments_(sortedSegments.video, this.videoBuffer_);
+ // TODO: are video tracks the only ones with text tracks?
+ addTextTrackData(this, sortedSegments.captions, sortedSegments.metadata);
+ } else if (this.videoBuffer_ && (this.audioDisabled_ || !this.audioBuffer_)) {
+ // The transmuxer did not return any bytes of video, meaning it was all trimmed
+ // for gop alignment. Since we have a video buffer and audio is disabled, updateend
+ // will never be triggered by this source buffer, which will cause contrib-hls
+ // to be stuck forever waiting for updateend. If audio is not disabled, updateend
+ // will be triggered by the audio buffer, which will be sent upwards since the video
+ // buffer will not be in an updating state.
+ triggerUpdateend = true;
+ }
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.concatAndAppendSegments_(sortedSegments.audio, this.audioBuffer_);
+ }
+
+ this.pendingBuffers_.length = 0;
+
+ if (triggerUpdateend) {
+ this.trigger('updateend');
+ }
+
+ // We are no longer in the internal "updating" state
+ this.bufferUpdating_ = false;
+ }
+
+ /**
+ * Combine all segments into a single Uint8Array and then append them
+ * to the destination buffer
+ *
+ * @param {Object} segmentObj
+ * @param {SourceBuffer} destinationBuffer native source buffer to append data to
+ * @private
+ */
+
+ }, {
+ key: 'concatAndAppendSegments_',
+ value: function concatAndAppendSegments_(segmentObj, destinationBuffer) {
+ var offset = 0;
+ var tempBuffer = void 0;
+
+ if (segmentObj.bytes) {
+ tempBuffer = new Uint8Array(segmentObj.bytes);
+
+ // Combine the individual segments into one large typed-array
+ segmentObj.segments.forEach(function (segment) {
+ tempBuffer.set(segment, offset);
+ offset += segment.byteLength;
+ });
+
+ try {
+ destinationBuffer.updating = true;
+ destinationBuffer.appendBuffer(tempBuffer);
+ } catch (error) {
+ if (this.mediaSource_.player_) {
+ this.mediaSource_.player_.error({
+ code: -3,
+ type: 'APPEND_BUFFER_ERR',
+ message: error.message,
+ originalError: error
+ });
+ }
+ }
+ }
+ }
+
+ /**
+ * Emulate the native mediasource function. abort any soureBuffer
+ * actions and throw out any un-appended data.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/abort
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.abort();
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.abort();
+ }
+ if (this.transmuxer_) {
+ this.transmuxer_.postMessage({ action: 'reset' });
+ }
+ this.pendingBuffers_.length = 0;
+ this.bufferUpdating_ = false;
+ }
+ }]);
+ return VirtualSourceBuffer;
+}(videojs$1.EventTarget);
+
+/**
+ * @file html-media-source.js
+ */
+
+/**
+ * Our MediaSource implementation in HTML, mimics native
+ * MediaSource where/if possible.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource
+ * @class HtmlMediaSource
+ * @extends videojs.EventTarget
+ */
+
+var HtmlMediaSource = function (_videojs$EventTarget) {
+ inherits$1(HtmlMediaSource, _videojs$EventTarget);
+
+ function HtmlMediaSource() {
+ classCallCheck$1(this, HtmlMediaSource);
+
+ var _this = possibleConstructorReturn$1(this, (HtmlMediaSource.__proto__ || Object.getPrototypeOf(HtmlMediaSource)).call(this));
+
+ var property = void 0;
+
+ _this.nativeMediaSource_ = new window$1.MediaSource();
+ // delegate to the native MediaSource's methods by default
+ for (property in _this.nativeMediaSource_) {
+ if (!(property in HtmlMediaSource.prototype) && typeof _this.nativeMediaSource_[property] === 'function') {
+ _this[property] = _this.nativeMediaSource_[property].bind(_this.nativeMediaSource_);
+ }
+ }
+
+ // emulate `duration` and `seekable` until seeking can be
+ // handled uniformly for live streams
+ // see https://github.com/w3c/media-source/issues/5
+ _this.duration_ = NaN;
+ Object.defineProperty(_this, 'duration', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return this.duration_;
+ }
+ return this.nativeMediaSource_.duration;
+ },
+ set: function set$$1(duration) {
+ this.duration_ = duration;
+ if (duration !== Infinity) {
+ this.nativeMediaSource_.duration = duration;
+ return;
+ }
+ }
+ });
+ Object.defineProperty(_this, 'seekable', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return videojs$1.createTimeRanges([[0, this.nativeMediaSource_.duration]]);
+ }
+ return this.nativeMediaSource_.seekable;
+ }
+ });
+
+ Object.defineProperty(_this, 'readyState', {
+ get: function get$$1() {
+ return this.nativeMediaSource_.readyState;
+ }
+ });
+
+ Object.defineProperty(_this, 'activeSourceBuffers', {
+ get: function get$$1() {
+ return this.activeSourceBuffers_;
+ }
+ });
+
+ // the list of virtual and native SourceBuffers created by this
+ // MediaSource
+ _this.sourceBuffers = [];
+
+ _this.activeSourceBuffers_ = [];
+
+ /**
+ * update the list of active source buffers based upon various
+ * imformation from HLS and video.js
+ *
+ * @private
+ */
+ _this.updateActiveSourceBuffers_ = function () {
+ // Retain the reference but empty the array
+ _this.activeSourceBuffers_.length = 0;
+
+ // If there is only one source buffer, then it will always be active and audio will
+ // be disabled based on the codec of the source buffer
+ if (_this.sourceBuffers.length === 1) {
+ var sourceBuffer = _this.sourceBuffers[0];
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+ sourceBuffer.audioDisabled_ = !sourceBuffer.audioCodec_;
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ return;
+ }
+
+ // There are 2 source buffers, a combined (possibly video only) source buffer and
+ // and an audio only source buffer.
+ // By default, the audio in the combined virtual source buffer is enabled
+ // and the audio-only source buffer (if it exists) is disabled.
+ var disableCombined = false;
+ var disableAudioOnly = true;
+
+ // TODO: maybe we can store the sourcebuffers on the track objects?
+ // safari may do something like this
+ for (var i = 0; i < _this.player_.audioTracks().length; i++) {
+ var track = _this.player_.audioTracks()[i];
+
+ if (track.enabled && track.kind !== 'main') {
+ // The enabled track is an alternate audio track so disable the audio in
+ // the combined source buffer and enable the audio-only source buffer.
+ disableCombined = true;
+ disableAudioOnly = false;
+ break;
+ }
+ }
+
+ _this.sourceBuffers.forEach(function (sourceBuffer, index) {
+ /* eslinst-disable */
+ // TODO once codecs are required, we can switch to using the codecs to determine
+ // what stream is the video stream, rather than relying on videoTracks
+ /* eslinst-enable */
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+
+ if (sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // combined
+ sourceBuffer.audioDisabled_ = disableCombined;
+ } else if (sourceBuffer.videoCodec_ && !sourceBuffer.audioCodec_) {
+ // If the "combined" source buffer is video only, then we do not want
+ // disable the audio-only source buffer (this is mostly for demuxed
+ // audio and video hls)
+ sourceBuffer.audioDisabled_ = true;
+ disableAudioOnly = false;
+ } else if (!sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // audio only
+ // In the case of audio only with alternate audio and disableAudioOnly is true
+ // this means we want to disable the audio on the alternate audio sourcebuffer
+ // but not the main "combined" source buffer. The "combined" source buffer is
+ // always at index 0, so this ensures audio won't be disabled in both source
+ // buffers.
+ sourceBuffer.audioDisabled_ = index ? disableAudioOnly : !disableAudioOnly;
+ if (sourceBuffer.audioDisabled_) {
+ return;
+ }
+ }
+
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ });
+ };
+
+ _this.onPlayerMediachange_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ sourceBuffer.appendAudioInitSegment_ = true;
+ });
+ };
+
+ _this.onHlsReset_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.postMessage({ action: 'resetCaptions' });
+ }
+ });
+ };
+
+ _this.onHlsSegmentTimeMapping_ = function (event) {
+ _this.sourceBuffers.forEach(function (buffer) {
+ return buffer.timeMapping_ = event.mapping;
+ });
+ };
+
+ // Re-emit MediaSource events on the polyfill
+ ['sourceopen', 'sourceclose', 'sourceended'].forEach(function (eventName) {
+ this.nativeMediaSource_.addEventListener(eventName, this.trigger.bind(this));
+ }, _this);
+
+ // capture the associated player when the MediaSource is
+ // successfully attached
+ _this.on('sourceopen', function (event) {
+ // Get the player this MediaSource is attached to
+ var video = document.querySelector('[src="' + _this.url_ + '"]');
+
+ if (!video) {
+ return;
+ }
+
+ _this.player_ = videojs$1(video.parentNode);
+
+ // hls-reset is fired by videojs.Hls on to the tech after the main SegmentLoader
+ // resets its state and flushes the buffer
+ _this.player_.tech_.on('hls-reset', _this.onHlsReset_);
+ // hls-segment-time-mapping is fired by videojs.Hls on to the tech after the main
+ // SegmentLoader inspects an MTS segment and has an accurate stream to display
+ // time mapping
+ _this.player_.tech_.on('hls-segment-time-mapping', _this.onHlsSegmentTimeMapping_);
+
+ if (_this.player_.audioTracks && _this.player_.audioTracks()) {
+ _this.player_.audioTracks().on('change', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('addtrack', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('removetrack', _this.updateActiveSourceBuffers_);
+ }
+
+ _this.player_.on('mediachange', _this.onPlayerMediachange_);
+ });
+
+ _this.on('sourceended', function (event) {
+ var duration = durationOfVideo(_this.duration);
+
+ for (var i = 0; i < _this.sourceBuffers.length; i++) {
+ var sourcebuffer = _this.sourceBuffers[i];
+ var cues = sourcebuffer.metadataTrack_ && sourcebuffer.metadataTrack_.cues;
+
+ if (cues && cues.length) {
+ cues[cues.length - 1].endTime = duration;
+ }
+ }
+ });
+
+ // explicitly terminate any WebWorkers that were created
+ // by SourceHandlers
+ _this.on('sourceclose', function (event) {
+ this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.terminate();
+ }
+ });
+
+ this.sourceBuffers.length = 0;
+ if (!this.player_) {
+ return;
+ }
+
+ if (this.player_.audioTracks && this.player_.audioTracks()) {
+ this.player_.audioTracks().off('change', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('addtrack', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('removetrack', this.updateActiveSourceBuffers_);
+ }
+
+ // We can only change this if the player hasn't been disposed of yet
+ // because `off` eventually tries to use the el_ property. If it has
+ // been disposed of, then don't worry about it because there are no
+ // event handlers left to unbind anyway
+ if (this.player_.el_) {
+ this.player_.off('mediachange', this.onPlayerMediachange_);
+ this.player_.tech_.off('hls-reset', this.onHlsReset_);
+ this.player_.tech_.off('hls-segment-time-mapping', this.onHlsSegmentTimeMapping_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * Add a range that that can now be seeked to.
+ *
+ * @param {Double} start where to start the addition
+ * @param {Double} end where to end the addition
+ * @private
+ */
+
+ createClass$1(HtmlMediaSource, [{
+ key: 'addSeekableRange_',
+ value: function addSeekableRange_(start, end) {
+ var error = void 0;
+
+ if (this.duration !== Infinity) {
+ error = new Error('MediaSource.addSeekableRange() can only be invoked ' + 'when the duration is Infinity');
+ error.name = 'InvalidStateError';
+ error.code = 11;
+ throw error;
+ }
+
+ if (end > this.nativeMediaSource_.duration || isNaN(this.nativeMediaSource_.duration)) {
+ this.nativeMediaSource_.duration = end;
+ }
+ }
+
+ /**
+ * Add a source buffer to the media source.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/addSourceBuffer
+ * @param {String} type the content-type of the content
+ * @return {Object} the created source buffer
+ */
+
+ }, {
+ key: 'addSourceBuffer',
+ value: function addSourceBuffer(type) {
+ var buffer = void 0;
+ var parsedType = parseContentType(type);
+
+ // Create a VirtualSourceBuffer to transmux MPEG-2 transport
+ // stream segments into fragmented MP4s
+ if (/^(video|audio)\/mp2t$/i.test(parsedType.type)) {
+ var codecs = [];
+
+ if (parsedType.parameters && parsedType.parameters.codecs) {
+ codecs = parsedType.parameters.codecs.split(',');
+ codecs = translateLegacyCodecs(codecs);
+ codecs = codecs.filter(function (codec) {
+ return isAudioCodec(codec) || isVideoCodec(codec);
+ });
+ }
+
+ if (codecs.length === 0) {
+ codecs = ['avc1.4d400d', 'mp4a.40.2'];
+ }
+
+ buffer = new VirtualSourceBuffer(this, codecs);
+
+ if (this.sourceBuffers.length !== 0) {
+ // If another VirtualSourceBuffer already exists, then we are creating a
+ // SourceBuffer for an alternate audio track and therefore we know that
+ // the source has both an audio and video track.
+ // That means we should trigger the manual creation of the real
+ // SourceBuffers instead of waiting for the transmuxer to return data
+ this.sourceBuffers[0].createRealSourceBuffers_();
+ buffer.createRealSourceBuffers_();
+
+ // Automatically disable the audio on the first source buffer if
+ // a second source buffer is ever created
+ this.sourceBuffers[0].audioDisabled_ = true;
+ }
+ } else {
+ // delegate to the native implementation
+ buffer = this.nativeMediaSource_.addSourceBuffer(type);
+ }
+
+ this.sourceBuffers.push(buffer);
+ return buffer;
+ }
+ }]);
+ return HtmlMediaSource;
+}(videojs$1.EventTarget);
+
+/**
+ * @file videojs-contrib-media-sources.js
+ */
+var urlCount = 0;
+
+// ------------
+// Media Source
+// ------------
+
+// store references to the media sources so they can be connected
+// to a video element (a swf object)
+// TODO: can we store this somewhere local to this module?
+videojs$1.mediaSources = {};
+
+/**
+ * Provide a method for a swf object to notify JS that a
+ * media source is now open.
+ *
+ * @param {String} msObjectURL string referencing the MSE Object URL
+ * @param {String} swfId the swf id
+ */
+var open = function open(msObjectURL, swfId) {
+ var mediaSource = videojs$1.mediaSources[msObjectURL];
+
+ if (mediaSource) {
+ mediaSource.trigger({ type: 'sourceopen', swfId: swfId });
+ } else {
+ throw new Error('Media Source not found (Video.js)');
+ }
+};
+
+/**
+ * Check to see if the native MediaSource object exists and supports
+ * an MP4 container with both H.264 video and AAC-LC audio.
+ *
+ * @return {Boolean} if native media sources are supported
+ */
+var supportsNativeMediaSources = function supportsNativeMediaSources() {
+ return !!window$1.MediaSource && !!window$1.MediaSource.isTypeSupported && window$1.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"');
+};
+
+/**
+ * An emulation of the MediaSource API so that we can support
+ * native and non-native functionality. returns an instance of
+ * HtmlMediaSource.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/MediaSource
+ */
+var MediaSource = function MediaSource() {
+ this.MediaSource = {
+ open: open,
+ supportsNativeMediaSources: supportsNativeMediaSources
+ };
+
+ if (supportsNativeMediaSources()) {
+ return new HtmlMediaSource();
+ }
+
+ throw new Error('Cannot use create a virtual MediaSource for this video');
+};
+
+MediaSource.open = open;
+MediaSource.supportsNativeMediaSources = supportsNativeMediaSources;
+
+/**
+ * A wrapper around the native URL for our MSE object
+ * implementation, this object is exposed under videojs.URL
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/URL
+ */
+var URL$1 = {
+ /**
+ * A wrapper around the native createObjectURL for our objects.
+ * This function maps a native or emulated mediaSource to a blob
+ * url so that it can be loaded into video.js
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
+ * @param {MediaSource} object the object to create a blob url to
+ */
+ createObjectURL: function createObjectURL(object) {
+ var objectUrlPrefix = 'blob:vjs-media-source/';
+ var url = void 0;
+
+ // use the native MediaSource to generate an object URL
+ if (object instanceof HtmlMediaSource) {
+ url = window$1.URL.createObjectURL(object.nativeMediaSource_);
+ object.url_ = url;
+ return url;
+ }
+ // if the object isn't an emulated MediaSource, delegate to the
+ // native implementation
+ if (!(object instanceof HtmlMediaSource)) {
+ url = window$1.URL.createObjectURL(object);
+ object.url_ = url;
+ return url;
+ }
+
+ // build a URL that can be used to map back to the emulated
+ // MediaSource
+ url = objectUrlPrefix + urlCount;
+
+ urlCount++;
+
+ // setup the mapping back to object
+ videojs$1.mediaSources[url] = object;
+
+ return url;
+ }
+};
+
+videojs$1.MediaSource = MediaSource;
+videojs$1.URL = URL$1;
+
+var EventTarget$1$1 = videojs$1.EventTarget,
+ mergeOptions$2 = videojs$1.mergeOptions;
+
+/**
+ * Returns a new master manifest that is the result of merging an updated master manifest
+ * into the original version.
+ *
+ * @param {Object} oldMaster
+ * The old parsed mpd object
+ * @param {Object} newMaster
+ * The updated parsed mpd object
+ * @return {Object}
+ * A new object representing the original master manifest with the updated media
+ * playlists merged in
+ */
+
+var updateMaster$1 = function updateMaster$$1(oldMaster, newMaster) {
+ var update = mergeOptions$2(oldMaster, {
+ // These are top level properties that can be updated
+ duration: newMaster.duration,
+ minimumUpdatePeriod: newMaster.minimumUpdatePeriod
+ });
+
+ // First update the playlists in playlist list
+ for (var i = 0; i < newMaster.playlists.length; i++) {
+ var playlistUpdate = updateMaster(update, newMaster.playlists[i]);
+
+ if (playlistUpdate) {
+ update = playlistUpdate;
+ }
+ }
+
+ // Then update media group playlists
+ forEachMediaGroup(newMaster, function (properties, type, group, label) {
+ if (properties.playlists && properties.playlists.length) {
+ var uri = properties.playlists[0].uri;
+ var _playlistUpdate = updateMaster(update, properties.playlists[0]);
+
+ if (_playlistUpdate) {
+ update = _playlistUpdate;
+ // update the playlist reference within media groups
+ update.mediaGroups[type][group][label].playlists[0] = update.playlists[uri];
+ }
+ }
+ });
+
+ return update;
+};
+
+var DashPlaylistLoader = function (_EventTarget) {
+ inherits$1(DashPlaylistLoader, _EventTarget);
+
+ // DashPlaylistLoader must accept either a src url or a playlist because subsequent
+ // playlist loader setups from media groups will expect to be able to pass a playlist
+ // (since there aren't external URLs to media playlists with DASH)
+ function DashPlaylistLoader(srcUrlOrPlaylist, hls, withCredentials, masterPlaylistLoader) {
+ classCallCheck$1(this, DashPlaylistLoader);
+
+ var _this = possibleConstructorReturn$1(this, (DashPlaylistLoader.__proto__ || Object.getPrototypeOf(DashPlaylistLoader)).call(this));
+
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!srcUrlOrPlaylist) {
+ throw new Error('A non-empty playlist URL or playlist is required');
+ }
+
+ // event naming?
+ _this.on('minimumUpdatePeriod', function () {
+ _this.refreshXml_();
+ });
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ _this.refreshMedia_();
+ });
+
+ // initialize the loader state
+ if (typeof srcUrlOrPlaylist === 'string') {
+ _this.srcUrl = srcUrlOrPlaylist;
+ _this.state = 'HAVE_NOTHING';
+ return possibleConstructorReturn$1(_this);
+ }
+
+ _this.masterPlaylistLoader_ = masterPlaylistLoader;
+
+ _this.state = 'HAVE_METADATA';
+ _this.started = true;
+ // we only should have one playlist so select it
+ _this.media(srcUrlOrPlaylist);
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window$1.setTimeout(function () {
+ _this.trigger('loadedmetadata');
+ }, 0);
+ return _this;
+ }
+
+ createClass$1(DashPlaylistLoader, [{
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window$1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ this.state = 'HAVE_METADATA';
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ // switching from an already loaded playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.media_ = playlist;
+
+ this.refreshMedia_();
+
+ // trigger media change if the active media has been updated
+ if (startingState !== 'HAVE_MASTER') {
+ this.trigger('mediachange');
+ }
+ }
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ }
+ }, {
+ key: 'load',
+ value: function load() {
+ // because the playlists are internal to the manifest, load should either load the
+ // main manifest, or do nothing but trigger an event
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Parses the master xml string and updates playlist uri references
+ *
+ * @return {Object}
+ * The parsed mpd manifest object
+ */
+
+ }, {
+ key: 'parseMasterXml',
+ value: function parseMasterXml() {
+ var master = parse(this.masterXml_, {
+ manifestUri: this.srcUrl,
+ clientOffset: this.clientOffset_
+ });
+
+ master.uri = this.srcUrl;
+
+ // Set up phony URIs for the playlists since we won't have external URIs for DASH
+ // but reference playlists by their URI throughout the project
+ // TODO: Should we create the dummy uris in mpd-parser as well (leaning towards yes).
+ for (var i = 0; i < master.playlists.length; i++) {
+ var phonyUri = 'placeholder-uri-' + i;
+
+ master.playlists[i].uri = phonyUri;
+ // set up by URI references
+ master.playlists[phonyUri] = master.playlists[i];
+ }
+
+ // set up phony URIs for the media group playlists since we won't have external
+ // URIs for DASH but reference playlists by their URI throughout the project
+ forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
+ if (properties.playlists && properties.playlists.length) {
+ var _phonyUri = 'placeholder-uri-' + mediaType + '-' + groupKey + '-' + labelKey;
+
+ properties.playlists[0].uri = _phonyUri;
+ // setup URI references
+ master.playlists[_phonyUri] = properties.playlists[0];
+ }
+ });
+
+ setupMediaPlaylists(master);
+ resolveMediaGroupUris(master);
+
+ return master;
+ }
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this2 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this2.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this2.request = null;
+
+ if (error) {
+ _this2.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this2.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this2.state === 'HAVE_NOTHING') {
+ _this2.started = false;
+ }
+ return _this2.trigger('error');
+ }
+
+ _this2.masterXml_ = req.responseText;
+
+ if (req.responseHeaders && req.responseHeaders.date) {
+ _this2.masterLoaded_ = Date.parse(req.responseHeaders.date);
+ } else {
+ _this2.masterLoaded_ = Date.now();
+ }
+
+ _this2.syncClientServerClock_(_this2.onClientServerClockSync_.bind(_this2));
+ });
+ }
+
+ /**
+ * Parses the master xml for UTCTiming node to sync the client clock to the server
+ * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
+ *
+ * @param {Function} done
+ * Function to call when clock sync has completed
+ */
+
+ }, {
+ key: 'syncClientServerClock_',
+ value: function syncClientServerClock_(done) {
+ var _this3 = this;
+
+ var utcTiming = parseUTCTiming(this.masterXml_);
+
+ // No UTCTiming element found in the mpd. Use Date header from mpd request as the
+ // server clock
+ if (utcTiming === null) {
+ this.clientOffset_ = this.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ if (utcTiming.method === 'DIRECT') {
+ this.clientOffset_ = utcTiming.value - Date.now();
+ return done();
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl(this.srcUrl, utcTiming.value),
+ method: utcTiming.method,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ // sync request failed, fall back to using date header from mpd
+ // TODO: log warning
+ _this3.clientOffset_ = _this3.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ var serverTime = void 0;
+
+ if (utcTiming.method === 'HEAD') {
+ if (!req.responseHeaders || !req.responseHeaders.date) {
+ // expected date header not preset, fall back to using date header from mpd
+ // TODO: log warning
+ serverTime = _this3.masterLoaded_;
+ } else {
+ serverTime = Date.parse(req.responseHeaders.date);
+ }
+ } else {
+ serverTime = Date.parse(req.responseText);
+ }
+
+ _this3.clientOffset_ = serverTime - Date.now();
+
+ done();
+ });
+ }
+
+ /**
+ * Handler for after client/server clock synchronization has happened. Sets up
+ * xml refresh timer if specificed by the manifest.
+ */
+
+ }, {
+ key: 'onClientServerClockSync_',
+ value: function onClientServerClockSync_() {
+ var _this4 = this;
+
+ this.master = this.parseMasterXml();
+
+ this.state = 'HAVE_MASTER';
+
+ this.trigger('loadedplaylist');
+
+ if (!this.media_) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ this.media(this.master.playlists[0]);
+ }
+ // trigger loadedmetadata to resolve setup of media groups
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window$1.setTimeout(function () {
+ _this4.trigger('loadedmetadata');
+ }, 0);
+
+ // TODO: minimumUpdatePeriod can have a value of 0. Currently the manifest will not
+ // be refreshed when this is the case. The inter-op guide says that when the
+ // minimumUpdatePeriod is 0, the manifest should outline all currently available
+ // segments, but future segments may require an update. I think a good solution
+ // would be to update the manifest at the same rate that the media playlists
+ // are "refreshed", i.e. every targetDuration.
+ if (this.master.minimumUpdatePeriod) {
+ window$1.setTimeout(function () {
+ _this4.trigger('minimumUpdatePeriod');
+ }, this.master.minimumUpdatePeriod);
+ }
+ }
+
+ /**
+ * Sends request to refresh the master xml and updates the parsed master manifest
+ * TODO: Does the client offset need to be recalculated when the xml is refreshed?
+ */
+
+ }, {
+ key: 'refreshXml_',
+ value: function refreshXml_() {
+ var _this5 = this;
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ _this5.masterXml_ = req.responseText;
+
+ var newMaster = _this5.parseMasterXml();
+
+ _this5.master = updateMaster$1(_this5.master, newMaster);
+
+ window$1.setTimeout(function () {
+ _this5.trigger('minimumUpdatePeriod');
+ }, _this5.master.minimumUpdatePeriod);
+ });
+ }
+
+ /**
+ * Refreshes the media playlist by re-parsing the master xml and updating playlist
+ * references. If this is an alternate loader, the updated parsed manifest is retrieved
+ * from the master loader.
+ */
+
+ }, {
+ key: 'refreshMedia_',
+ value: function refreshMedia_() {
+ var _this6 = this;
+
+ var oldMaster = void 0;
+ var newMaster = void 0;
+
+ if (this.masterPlaylistLoader_) {
+ oldMaster = this.masterPlaylistLoader_.master;
+ newMaster = this.masterPlaylistLoader_.parseMasterXml();
+ } else {
+ oldMaster = this.master;
+ newMaster = this.parseMasterXml();
+ }
+
+ var updatedMaster = updateMaster$1(oldMaster, newMaster);
+
+ if (updatedMaster) {
+ if (this.masterPlaylistLoader_) {
+ this.masterPlaylistLoader_.master = updatedMaster;
+ } else {
+ this.master = updatedMaster;
+ }
+ this.media_ = updatedMaster.playlists[this.media_.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ if (!this.media().endList) {
+ this.mediaUpdateTimeout = window$1.setTimeout(function () {
+ _this6.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!updatedMaster));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ }]);
+ return DashPlaylistLoader;
+}(EventTarget$1$1);
+
+var logger = function logger(source) {
+ if (videojs$1.log.debug) {
+ return videojs$1.log.debug.bind(videojs$1, 'VHS:', source + ' >');
+ }
+
+ return function () {};
+};
+
+function noop() {}
+
+/**
+ * @file source-updater.js
+ */
+
+/**
+ * A queue of callbacks to be serialized and applied when a
+ * MediaSource and its associated SourceBuffers are not in the
+ * updating state. It is used by the segment loader to update the
+ * underlying SourceBuffers when new data is loaded, for instance.
+ *
+ * @class SourceUpdater
+ * @param {MediaSource} mediaSource the MediaSource to create the
+ * SourceBuffer from
+ * @param {String} mimeType the desired MIME type of the underlying
+ * SourceBuffer
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer is
+ * added to the media source
+ */
+
+var SourceUpdater = function () {
+ function SourceUpdater(mediaSource, mimeType, type, sourceBufferEmitter) {
+ classCallCheck$1(this, SourceUpdater);
+
+ this.callbacks_ = [];
+ this.pendingCallback_ = null;
+ this.timestampOffset_ = 0;
+ this.mediaSource = mediaSource;
+ this.processedAppend_ = false;
+ this.type_ = type;
+ this.mimeType_ = mimeType;
+ this.logger_ = logger('SourceUpdater[' + type + '][' + mimeType + ']');
+
+ if (mediaSource.readyState === 'closed') {
+ mediaSource.addEventListener('sourceopen', this.createSourceBuffer_.bind(this, mimeType, sourceBufferEmitter));
+ } else {
+ this.createSourceBuffer_(mimeType, sourceBufferEmitter);
+ }
+ }
+
+ createClass$1(SourceUpdater, [{
+ key: 'createSourceBuffer_',
+ value: function createSourceBuffer_(mimeType, sourceBufferEmitter) {
+ var _this = this;
+
+ this.sourceBuffer_ = this.mediaSource.addSourceBuffer(mimeType);
+
+ this.logger_('created SourceBuffer');
+
+ if (sourceBufferEmitter) {
+ sourceBufferEmitter.trigger('sourcebufferadded');
+
+ if (this.mediaSource.sourceBuffers.length < 2) {
+ // There's another source buffer we must wait for before we can start updating
+ // our own (or else we can get into a bad state, i.e., appending video/audio data
+ // before the other video/audio source buffer is available and leading to a video
+ // or audio only buffer).
+ sourceBufferEmitter.on('sourcebufferadded', function () {
+ _this.start_();
+ });
+ return;
+ }
+ }
+
+ this.start_();
+ }
+ }, {
+ key: 'start_',
+ value: function start_() {
+ var _this2 = this;
+
+ this.started_ = true;
+
+ // run completion handlers and process callbacks as updateend
+ // events fire
+ this.onUpdateendCallback_ = function () {
+ var pendingCallback = _this2.pendingCallback_;
+
+ _this2.pendingCallback_ = null;
+
+ _this2.logger_('buffered [' + printableRange(_this2.buffered()) + ']');
+
+ if (pendingCallback) {
+ pendingCallback();
+ }
+
+ _this2.runCallback_();
+ };
+
+ this.sourceBuffer_.addEventListener('updateend', this.onUpdateendCallback_);
+
+ this.runCallback_();
+ }
+
+ /**
+ * Aborts the current segment and resets the segment parser.
+ *
+ * @param {Function} done function to call when done
+ * @see http://w3c.github.io/media-source/#widl-SourceBuffer-abort-void
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort(done) {
+ var _this3 = this;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this3.sourceBuffer_.abort();
+ }, done);
+ }
+ }
+
+ /**
+ * Queue an update to append an ArrayBuffer.
+ *
+ * @param {ArrayBuffer} bytes
+ * @param {Function} done the function to call when done
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(bytes, done) {
+ var _this4 = this;
+
+ this.processedAppend_ = true;
+ this.queueCallback_(function () {
+ _this4.sourceBuffer_.appendBuffer(bytes);
+ }, done);
+ }
+
+ /**
+ * Indicates what TimeRanges are buffered in the managed SourceBuffer.
+ *
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-buffered
+ */
+
+ }, {
+ key: 'buffered',
+ value: function buffered() {
+ if (!this.sourceBuffer_) {
+ return videojs$1.createTimeRanges();
+ }
+ return this.sourceBuffer_.buffered;
+ }
+
+ /**
+ * Queue an update to remove a time range from the buffer.
+ *
+ * @param {Number} start where to start the removal
+ * @param {Number} end where to end the removal
+ * @param {Function} [done=noop] optional callback to be executed when the remove
+ * operation is complete
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ var _this5 = this;
+
+ var done = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : noop;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this5.logger_('remove [' + start + ' => ' + end + ']');
+ _this5.sourceBuffer_.remove(start, end);
+ }, done);
+ }
+ }
+
+ /**
+ * Whether the underlying sourceBuffer is updating or not
+ *
+ * @return {Boolean} the updating status of the SourceBuffer
+ */
+
+ }, {
+ key: 'updating',
+ value: function updating() {
+ return !this.sourceBuffer_ || this.sourceBuffer_.updating || this.pendingCallback_;
+ }
+
+ /**
+ * Set/get the timestampoffset on the SourceBuffer
+ *
+ * @return {Number} the timestamp offset
+ */
+
+ }, {
+ key: 'timestampOffset',
+ value: function timestampOffset(offset) {
+ var _this6 = this;
+
+ if (typeof offset !== 'undefined') {
+ this.queueCallback_(function () {
+ _this6.sourceBuffer_.timestampOffset = offset;
+ });
+ this.timestampOffset_ = offset;
+ }
+ return this.timestampOffset_;
+ }
+
+ /**
+ * Queue a callback to run
+ */
+
+ }, {
+ key: 'queueCallback_',
+ value: function queueCallback_(callback, done) {
+ this.callbacks_.push([callback.bind(this), done]);
+ this.runCallback_();
+ }
+
+ /**
+ * Run a queued callback
+ */
+
+ }, {
+ key: 'runCallback_',
+ value: function runCallback_() {
+ var callbacks = void 0;
+
+ if (!this.updating() && this.callbacks_.length && this.started_) {
+ callbacks = this.callbacks_.shift();
+ this.pendingCallback_ = callbacks[1];
+ callbacks[0]();
+ }
+ }
+
+ /**
+ * dispose of the source updater and the underlying sourceBuffer
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.sourceBuffer_.removeEventListener('updateend', this.onUpdateendCallback_);
+ if (this.sourceBuffer_ && this.mediaSource.readyState === 'open') {
+ this.sourceBuffer_.abort();
+ }
+ }
+ }]);
+ return SourceUpdater;
+}();
+
+var Config = {
+ GOAL_BUFFER_LENGTH: 30,
+ MAX_GOAL_BUFFER_LENGTH: 60,
+ GOAL_BUFFER_LENGTH_RATE: 1,
+ // A fudge factor to apply to advertised playlist bitrates to account for
+ // temporary flucations in client bandwidth
+ BANDWIDTH_VARIANCE: 1.2,
+ // How much of the buffer must be filled before we consider upswitching
+ BUFFER_LOW_WATER_LINE: 0,
+ MAX_BUFFER_LOW_WATER_LINE: 30,
+ BUFFER_LOW_WATER_LINE_RATE: 1
+};
+
+var REQUEST_ERRORS = {
+ FAILURE: 2,
+ TIMEOUT: -101,
+ ABORTED: -102
+};
+
+/**
+ * Turns segment byterange into a string suitable for use in
+ * HTTP Range requests
+ *
+ * @param {Object} byterange - an object with two values defining the start and end
+ * of a byte-range
+ */
+var byterangeStr = function byterangeStr(byterange) {
+ var byterangeStart = void 0;
+ var byterangeEnd = void 0;
+
+ // `byterangeEnd` is one less than `offset + length` because the HTTP range
+ // header uses inclusive ranges
+ byterangeEnd = byterange.offset + byterange.length - 1;
+ byterangeStart = byterange.offset;
+ return 'bytes=' + byterangeStart + '-' + byterangeEnd;
+};
+
+/**
+ * Defines headers for use in the xhr request for a particular segment.
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ */
+var segmentXhrHeaders = function segmentXhrHeaders(segment) {
+ var headers = {};
+
+ if (segment.byterange) {
+ headers.Range = byterangeStr(segment.byterange);
+ }
+ return headers;
+};
+
+/**
+ * Abort all requests
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ */
+var abortAll = function abortAll(activeXhrs) {
+ activeXhrs.forEach(function (xhr$$1) {
+ xhr$$1.abort();
+ });
+};
+
+/**
+ * Gather important bandwidth stats once a request has completed
+ *
+ * @param {Object} request - the XHR request from which to gather stats
+ */
+var getRequestStats = function getRequestStats(request) {
+ return {
+ bandwidth: request.bandwidth,
+ bytesReceived: request.bytesReceived || 0,
+ roundTripTime: request.roundTripTime || 0
+ };
+};
+
+/**
+ * If possible gather bandwidth stats as a request is in
+ * progress
+ *
+ * @param {Event} progressEvent - an event object from an XHR's progress event
+ */
+var getProgressStats = function getProgressStats(progressEvent) {
+ var request = progressEvent.target;
+ var roundTripTime = Date.now() - request.requestTime;
+ var stats = {
+ bandwidth: Infinity,
+ bytesReceived: 0,
+ roundTripTime: roundTripTime || 0
+ };
+
+ stats.bytesReceived = progressEvent.loaded;
+ // This can result in Infinity if stats.roundTripTime is 0 but that is ok
+ // because we should only use bandwidth stats on progress to determine when
+ // abort a request early due to insufficient bandwidth
+ stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
+
+ return stats;
+};
+
+/**
+ * Handle all error conditions in one place and return an object
+ * with all the information
+ *
+ * @param {Error|null} error - if non-null signals an error occured with the XHR
+ * @param {Object} request - the XHR request that possibly generated the error
+ */
+var handleErrors = function handleErrors(error, request) {
+ if (request.timedout) {
+ return {
+ status: request.status,
+ message: 'HLS request timed-out at URL: ' + request.uri,
+ code: REQUEST_ERRORS.TIMEOUT,
+ xhr: request
+ };
+ }
+
+ if (request.aborted) {
+ return {
+ status: request.status,
+ message: 'HLS request aborted at URL: ' + request.uri,
+ code: REQUEST_ERRORS.ABORTED,
+ xhr: request
+ };
+ }
+
+ if (error) {
+ return {
+ status: request.status,
+ message: 'HLS request errored at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ };
+ }
+
+ return null;
+};
+
+/**
+ * Handle responses for key data and convert the key data to the correct format
+ * for the decryption step later
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+var handleKeyResponse = function handleKeyResponse(segment, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ if (response.byteLength !== 16) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Invalid HLS key at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ var view = new DataView(response);
+
+ segment.key.bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
+ return finishProcessingFn(null, segment);
+ };
+};
+
+/**
+ * Handle init-segment responses
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+var handleInitSegmentResponse = function handleInitSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.map.bytes = new Uint8Array(request.response);
+
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ segment.map.timescales = mp4probe.timescale(segment.map.bytes);
+ segment.map.videoTrackIds = mp4probe.videoTrackIds(segment.map.bytes);
+
+ return finishProcessingFn(null, segment);
+ };
+};
+
+/**
+ * Response handler for segment-requests being sure to set the correct
+ * property depending on whether the segment is encryped or not
+ * Also records and keeps track of stats that are used for ABR purposes
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+var handleSegmentResponse = function handleSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+ var parsed = void 0;
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.stats = getRequestStats(request);
+
+ if (segment.key) {
+ segment.encryptedBytes = new Uint8Array(request.response);
+ } else {
+ segment.bytes = new Uint8Array(request.response);
+ }
+
+ // This is likely an FMP4 and has the init segment.
+ // Run through the CaptionParser in case there are captions.
+ if (segment.map && segment.map.bytes) {
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ parsed = captionParser.parse(segment.bytes, segment.map.videoTrackIds, segment.map.timescales);
+
+ if (parsed && parsed.captions) {
+ segment.captionStreams = parsed.captionStreams;
+ segment.fmp4Captions = parsed.captions;
+ }
+ }
+
+ return finishProcessingFn(null, segment);
+ };
+};
+
+/**
+ * Decrypt the segment via the decryption web worker
+ *
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} doneFn - a callback that is executed after decryption has completed
+ */
+var decryptSegment = function decryptSegment(decrypter, segment, doneFn) {
+ var decryptionHandler = function decryptionHandler(event) {
+ if (event.data.source === segment.requestId) {
+ decrypter.removeEventListener('message', decryptionHandler);
+ var decrypted = event.data.decrypted;
+
+ segment.bytes = new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength);
+ return doneFn(null, segment);
+ }
+ };
+
+ decrypter.addEventListener('message', decryptionHandler);
+
+ // this is an encrypted segment
+ // incrementally decrypt the segment
+ decrypter.postMessage(createTransferableMessage({
+ source: segment.requestId,
+ encrypted: segment.encryptedBytes,
+ key: segment.key.bytes,
+ iv: segment.key.iv
+ }), [segment.encryptedBytes.buffer, segment.key.bytes.buffer]);
+};
+
+/**
+ * The purpose of this function is to get the most pertinent error from the
+ * array of errors.
+ * For instance if a timeout and two aborts occur, then the aborts were
+ * likely triggered by the timeout so return that error object.
+ */
+var getMostImportantError = function getMostImportantError(errors) {
+ return errors.reduce(function (prev, err) {
+ return err.code > prev.code ? err : prev;
+ });
+};
+
+/**
+ * This function waits for all XHRs to finish (with either success or failure)
+ * before continueing processing via it's callback. The function gathers errors
+ * from each request into a single errors array so that the error status for
+ * each request can be examined later.
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Function} doneFn - a callback that is executed after all resources have been
+ * downloaded and any decryption completed
+ */
+var waitForCompletion = function waitForCompletion(activeXhrs, decrypter, doneFn) {
+ var errors = [];
+ var count = 0;
+
+ return function (error, segment) {
+ if (error) {
+ // If there are errors, we have to abort any outstanding requests
+ abortAll(activeXhrs);
+ errors.push(error);
+ }
+ count += 1;
+
+ if (count === activeXhrs.length) {
+ // Keep track of when *all* of the requests have completed
+ segment.endOfAllRequests = Date.now();
+
+ if (errors.length > 0) {
+ var worstError = getMostImportantError(errors);
+
+ return doneFn(worstError, segment);
+ }
+ if (segment.encryptedBytes) {
+ return decryptSegment(decrypter, segment, doneFn);
+ }
+ // Otherwise, everything is ready just continue
+ return doneFn(null, segment);
+ }
+ };
+};
+
+/**
+ * Simple progress event callback handler that gathers some stats before
+ * executing a provided callback with the `segment` object
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that is executed each time a progress event
+ * is received
+ * @param {Event} event - the progress event object from XMLHttpRequest
+ */
+var handleProgress = function handleProgress(segment, progressFn) {
+ return function (event) {
+ segment.stats = videojs$1.mergeOptions(segment.stats, getProgressStats(event));
+
+ // record the time that we receive the first byte of data
+ if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
+ segment.stats.firstBytesReceivedAt = Date.now();
+ }
+
+ return progressFn(event, segment);
+ };
+};
+
+/**
+ * Load all resources and does any processing necessary for a media-segment
+ *
+ * Features:
+ * decrypts the media-segment if it has a key uri and an iv
+ * aborts *all* requests if *any* one request fails
+ *
+ * The segment object, at minimum, has the following format:
+ * {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [key]: {
+ * resolvedUri: String
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * iv: {
+ * bytes: Uint32Array
+ * }
+ * },
+ * [map]: {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [bytes]: Uint8Array
+ * }
+ * }
+ * ...where [name] denotes optional properties
+ *
+ * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
+ * @param {Object} xhrOptions - the base options to provide to all xhr requests
+ * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
+ * decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that receives progress events from the main
+ * segment's xhr request
+ * @param {Function} doneFn - a callback that is executed only once all requests have
+ * succeeded or failed
+ * @returns {Function} a function that, when invoked, immediately aborts all
+ * outstanding requests
+ */
+var mediaSegmentRequest = function mediaSegmentRequest(xhr$$1, xhrOptions, decryptionWorker, captionParser, segment, progressFn, doneFn) {
+ var activeXhrs = [];
+ var finishProcessingFn = waitForCompletion(activeXhrs, decryptionWorker, doneFn);
+
+ // optionally, request the decryption key
+ if (segment.key) {
+ var keyRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.key.resolvedUri,
+ responseType: 'arraybuffer'
+ });
+ var keyRequestCallback = handleKeyResponse(segment, finishProcessingFn);
+ var keyXhr = xhr$$1(keyRequestOptions, keyRequestCallback);
+
+ activeXhrs.push(keyXhr);
+ }
+
+ // optionally, request the associated media init segment
+ if (segment.map && !segment.map.bytes) {
+ var initSegmentOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.map.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment.map)
+ });
+ var initSegmentRequestCallback = handleInitSegmentResponse(segment, captionParser, finishProcessingFn);
+ var initSegmentXhr = xhr$$1(initSegmentOptions, initSegmentRequestCallback);
+
+ activeXhrs.push(initSegmentXhr);
+ }
+
+ var segmentRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment)
+ });
+ var segmentRequestCallback = handleSegmentResponse(segment, captionParser, finishProcessingFn);
+ var segmentXhr = xhr$$1(segmentRequestOptions, segmentRequestCallback);
+
+ segmentXhr.addEventListener('progress', handleProgress(segment, progressFn));
+ activeXhrs.push(segmentXhr);
+
+ return function () {
+ return abortAll(activeXhrs);
+ };
+};
+
+// Utilities
+
+/**
+ * Returns the CSS value for the specified property on an element
+ * using `getComputedStyle`. Firefox has a long-standing issue where
+ * getComputedStyle() may return null when running in an iframe with
+ * `display: none`.
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ * @param {HTMLElement} el the htmlelement to work on
+ * @param {string} the proprety to get the style for
+ */
+var safeGetComputedStyle = function safeGetComputedStyle(el, property) {
+ var result = void 0;
+
+ if (!el) {
+ return '';
+ }
+
+ result = window$1.getComputedStyle(el);
+ if (!result) {
+ return '';
+ }
+
+ return result[property];
+};
+
+/**
+ * Resuable stable sort function
+ *
+ * @param {Playlists} array
+ * @param {Function} sortFn Different comparators
+ * @function stableSort
+ */
+var stableSort = function stableSort(array, sortFn) {
+ var newArray = array.slice();
+
+ array.sort(function (left, right) {
+ var cmp = sortFn(left, right);
+
+ if (cmp === 0) {
+ return newArray.indexOf(left) - newArray.indexOf(right);
+ }
+ return cmp;
+ });
+};
+
+/**
+ * A comparator function to sort two playlist object by bandwidth.
+ *
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the bandwidth attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the bandwidth of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {
+ var leftBandwidth = void 0;
+ var rightBandwidth = void 0;
+
+ if (left.attributes.BANDWIDTH) {
+ leftBandwidth = left.attributes.BANDWIDTH;
+ }
+ leftBandwidth = leftBandwidth || window$1.Number.MAX_VALUE;
+ if (right.attributes.BANDWIDTH) {
+ rightBandwidth = right.attributes.BANDWIDTH;
+ }
+ rightBandwidth = rightBandwidth || window$1.Number.MAX_VALUE;
+
+ return leftBandwidth - rightBandwidth;
+};
+
+/**
+ * A comparator function to sort two playlist object by resolution (width).
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the resolution.width attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the resolution.width of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+var comparePlaylistResolution = function comparePlaylistResolution(left, right) {
+ var leftWidth = void 0;
+ var rightWidth = void 0;
+
+ if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
+ leftWidth = left.attributes.RESOLUTION.width;
+ }
+
+ leftWidth = leftWidth || window$1.Number.MAX_VALUE;
+
+ if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+ rightWidth = right.attributes.RESOLUTION.width;
+ }
+
+ rightWidth = rightWidth || window$1.Number.MAX_VALUE;
+
+ // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
+ // have the same media dimensions/ resolution
+ if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
+ return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
+ }
+ return leftWidth - rightWidth;
+};
+
+/**
+ * Chooses the appropriate media playlist based on bandwidth and player size
+ *
+ * @param {Object} master
+ * Object representation of the master manifest
+ * @param {Number} playerBandwidth
+ * Current calculated bandwidth of the player
+ * @param {Number} playerWidth
+ * Current width of the player element
+ * @param {Number} playerHeight
+ * Current height of the player element
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight) {
+ // convert the playlists to an intermediary representation to make comparisons easier
+ var sortedPlaylistReps = master.playlists.map(function (playlist) {
+ var width = void 0;
+ var height = void 0;
+ var bandwidth = void 0;
+
+ width = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
+ height = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
+ bandwidth = playlist.attributes.BANDWIDTH;
+
+ bandwidth = bandwidth || window$1.Number.MAX_VALUE;
+
+ return {
+ bandwidth: bandwidth,
+ width: width,
+ height: height,
+ playlist: playlist
+ };
+ });
+
+ stableSort(sortedPlaylistReps, function (left, right) {
+ return left.bandwidth - right.bandwidth;
+ });
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+ sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isIncompatible(rep.playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return Playlist.isEnabled(rep.playlist);
+ });
+
+ if (!enabledPlaylistReps.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isDisabled(rep.playlist);
+ });
+ }
+
+ // filter out any variant that has greater effective bitrate
+ // than the current estimated bandwidth
+ var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {
+ return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;
+ });
+
+ var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1];
+
+ // get all of the renditions with the same (highest) bandwidth
+ // and then taking the very first element
+ var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ // filter out playlists without resolution information
+ var haveResolution = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.width && rep.height;
+ });
+
+ // sort variants by resolution
+ stableSort(haveResolution, function (left, right) {
+ return left.width - right.width;
+ });
+
+ // if we have the exact resolution as the player use it
+ var resolutionBestRepList = haveResolution.filter(function (rep) {
+ return rep.width === playerWidth && rep.height === playerHeight;
+ });
+
+ highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1];
+ // ensure that we pick the highest bandwidth variant that have exact resolution
+ var resolutionBestRep = resolutionBestRepList.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ var resolutionPlusOneList = void 0;
+ var resolutionPlusOneSmallest = void 0;
+ var resolutionPlusOneRep = void 0;
+
+ // find the smallest variant that is larger than the player
+ // if there is no match of exact resolution
+ if (!resolutionBestRep) {
+ resolutionPlusOneList = haveResolution.filter(function (rep) {
+ return rep.width > playerWidth || rep.height > playerHeight;
+ });
+
+ // find all the variants have the same smallest resolution
+ resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {
+ return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;
+ });
+
+ // ensure that we also pick the highest bandwidth variant that
+ // is just-larger-than the video player
+ highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
+ resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+ }
+
+ // fallback chain of variants
+ var chosenRep = resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+
+ return chosenRep ? chosenRep.playlist : null;
+};
+
+// Playlist Selectors
+
+/**
+ * Chooses the appropriate media playlist based on the most recent
+ * bandwidth estimate and the player size.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+var lastBandwidthSelector = function lastBandwidthSelector() {
+ return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10), parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10));
+};
+
+/**
+ * Chooses the appropriate media playlist based on the potential to rebuffer
+ *
+ * @param {Object} settings
+ * Object of information required to use this selector
+ * @param {Object} settings.master
+ * Object representation of the master manifest
+ * @param {Number} settings.currentTime
+ * The current time of the player
+ * @param {Number} settings.bandwidth
+ * Current measured bandwidth
+ * @param {Number} settings.duration
+ * Duration of the media
+ * @param {Number} settings.segmentDuration
+ * Segment duration to be used in round trip time calculations
+ * @param {Number} settings.timeUntilRebuffer
+ * Time left in seconds until the player has to rebuffer
+ * @param {Number} settings.currentTimeline
+ * The current timeline segments are being loaded from
+ * @param {SyncController} settings.syncController
+ * SyncController for determining if we have a sync point for a given playlist
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The highest bandwidth playlist with the least amount of rebuffering
+ * {Number} return.rebufferingImpact
+ * The amount of time in seconds switching to this playlist will rebuffer. A
+ * negative value means that switching will cause zero rebuffering.
+ */
+var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {
+ var master = settings.master,
+ currentTime = settings.currentTime,
+ bandwidth = settings.bandwidth,
+ duration$$1 = settings.duration,
+ segmentDuration = settings.segmentDuration,
+ timeUntilRebuffer = settings.timeUntilRebuffer,
+ currentTimeline = settings.currentTimeline,
+ syncController = settings.syncController;
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+
+ var compatiblePlaylists = master.playlists.filter(function (playlist) {
+ return !Playlist.isIncompatible(playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
+
+ if (!enabledPlaylists.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylists = compatiblePlaylists.filter(function (playlist) {
+ return !Playlist.isDisabled(playlist);
+ });
+ }
+
+ var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
+
+ var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {
+ var syncPoint = syncController.getSyncPoint(playlist, duration$$1, currentTimeline, currentTime);
+ // If there is no sync point for this playlist, switching to it will require a
+ // sync request first. This will double the request time
+ var numRequests = syncPoint ? 1 : 2;
+ var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
+ var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
+
+ return {
+ playlist: playlist,
+ rebufferingImpact: rebufferingImpact
+ };
+ });
+
+ var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {
+ return estimate.rebufferingImpact <= 0;
+ });
+
+ // Sort by bandwidth DESC
+ stableSort(noRebufferingPlaylists, function (a, b) {
+ return comparePlaylistBandwidth(b.playlist, a.playlist);
+ });
+
+ if (noRebufferingPlaylists.length) {
+ return noRebufferingPlaylists[0];
+ }
+
+ stableSort(rebufferingEstimates, function (a, b) {
+ return a.rebufferingImpact - b.rebufferingImpact;
+ });
+
+ return rebufferingEstimates[0] || null;
+};
+
+/**
+ * Chooses the appropriate media playlist, which in this case is the lowest bitrate
+ * one with video. If no renditions with video exist, return the lowest audio rendition.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The lowest bitrate playlist that contains a video codec. If no such rendition
+ * exists pick the lowest audio rendition.
+ */
+var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations or playback errors
+ var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled);
+
+ // Sort ascending by bitrate
+ stableSort(playlists, function (a, b) {
+ return comparePlaylistBandwidth(a, b);
+ });
+
+ // Parse and assume that playlists with no video codec have no video
+ // (this is not necessarily true, although it is generally true).
+ //
+ // If an entire manifest has no valid videos everything will get filtered
+ // out.
+ var playlistsWithVideo = playlists.filter(function (playlist) {
+ return parseCodecs(playlist.attributes.CODECS).videoCodec;
+ });
+
+ return playlistsWithVideo[0] || null;
+};
+
+/**
+ * Create captions text tracks on video.js if they do not exist
+ *
+ * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+ * @param {Object} tech the video.js tech
+ * @param {Object} captionStreams the caption streams to create
+ * @private
+ */
+var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStreams) {
+ for (var trackId in captionStreams) {
+ if (!inbandTextTracks[trackId]) {
+ tech.trigger({ type: 'usage', name: 'hls-608' });
+ var track = tech.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ inbandTextTracks[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ inbandTextTracks[trackId] = tech.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+};
+
+var addCaptionData = function addCaptionData(_ref) {
+ var inbandTextTracks = _ref.inbandTextTracks,
+ captionArray = _ref.captionArray,
+ timestampOffset = _ref.timestampOffset;
+
+ if (!captionArray) {
+ return;
+ }
+
+ var Cue = window.WebKitDataCue || window.VTTCue;
+
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+ var startTime = caption.startTime;
+ var endTime = caption.endTime;
+
+ if (!inbandTextTracks[track]) {
+ return;
+ }
+
+ startTime += timestampOffset;
+ endTime += timestampOffset;
+
+ inbandTextTracks[track].addCue(new Cue(startTime, endTime, caption.text));
+ });
+};
+
+/**
+ * @file segment-loader.js
+ */
+
+// in ms
+var CHECK_BUFFER_DELAY = 500;
+
+/**
+ * Determines if we should call endOfStream on the media source based
+ * on the state of the buffer or if appened segment was the final
+ * segment in the playlist.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Object} mediaSource the MediaSource object
+ * @param {Number} segmentIndex the index of segment we last appended
+ * @returns {Boolean} do we need to call endOfStream on the MediaSource
+ */
+var detectEndOfStream = function detectEndOfStream(playlist, mediaSource, segmentIndex) {
+ if (!playlist || !mediaSource) {
+ return false;
+ }
+
+ var segments = playlist.segments;
+
+ // determine a few boolean values to help make the branch below easier
+ // to read
+ var appendedLastSegment = segmentIndex === segments.length;
+
+ // if we've buffered to the end of the video, we need to call endOfStream
+ // so that MediaSources can trigger the `ended` event when it runs out of
+ // buffered data instead of waiting for me
+ return playlist.endList && mediaSource.readyState === 'open' && appendedLastSegment;
+};
+
+var finite = function finite(num) {
+ return typeof num === 'number' && isFinite(num);
+};
+
+var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, newSegmentMedia) {
+ // Although these checks should most likely cover non 'main' types, for now it narrows
+ // the scope of our checks.
+ if (loaderType !== 'main' || !startingMedia || !newSegmentMedia) {
+ return null;
+ }
+
+ if (!newSegmentMedia.containsAudio && !newSegmentMedia.containsVideo) {
+ return 'Neither audio nor video found in segment.';
+ }
+
+ if (startingMedia.containsVideo && !newSegmentMedia.containsVideo) {
+ return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ if (!startingMedia.containsVideo && newSegmentMedia.containsVideo) {
+ return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ return null;
+};
+
+/**
+ * Calculates a time value that is safe to remove from the back buffer without interupting
+ * playback.
+ *
+ * @param {TimeRange} seekable
+ * The current seekable range
+ * @param {Number} currentTime
+ * The current time of the player
+ * @param {Number} targetDuration
+ * The target duration of the current playlist
+ * @return {Number}
+ * Time that is safe to remove from the back buffer without interupting playback
+ */
+var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable$$1, currentTime, targetDuration) {
+ var removeToTime = void 0;
+
+ if (seekable$$1.length && seekable$$1.start(0) > 0 && seekable$$1.start(0) < currentTime) {
+ // If we have a seekable range use that as the limit for what can be removed safely
+ removeToTime = seekable$$1.start(0);
+ } else {
+ // otherwise remove anything older than 30 seconds before the current play head
+ removeToTime = currentTime - 30;
+ }
+
+ // Don't allow removing from the buffer within target duration of current time
+ // to avoid the possibility of removing the GOP currently being played which could
+ // cause playback stalls.
+ return Math.min(removeToTime, currentTime - targetDuration);
+};
+
+var segmentInfoString = function segmentInfoString(segmentInfo) {
+ var _segmentInfo$segment = segmentInfo.segment,
+ start = _segmentInfo$segment.start,
+ end = _segmentInfo$segment.end,
+ _segmentInfo$playlist = segmentInfo.playlist,
+ seq = _segmentInfo$playlist.mediaSequence,
+ id = _segmentInfo$playlist.id,
+ _segmentInfo$playlist2 = _segmentInfo$playlist.segments,
+ segments = _segmentInfo$playlist2 === undefined ? [] : _segmentInfo$playlist2,
+ index = segmentInfo.mediaIndex,
+ timeline = segmentInfo.timeline;
+
+ return ['appending [' + index + '] of [' + seq + ', ' + (seq + segments.length) + '] from playlist [' + id + ']', '[' + start + ' => ' + end + '] in timeline [' + timeline + ']'].join(' ');
+};
+
+/**
+ * An object that manages segment loading and appending.
+ *
+ * @class SegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+var SegmentLoader = function (_videojs$EventTarget) {
+ inherits$1(SegmentLoader, _videojs$EventTarget);
+
+ function SegmentLoader(settings) {
+ classCallCheck$1(this, SegmentLoader);
+
+ // check pre-conditions
+ var _this = possibleConstructorReturn$1(this, (SegmentLoader.__proto__ || Object.getPrototypeOf(SegmentLoader)).call(this));
+
+ if (!settings) {
+ throw new TypeError('Initialization settings are required');
+ }
+ if (typeof settings.currentTime !== 'function') {
+ throw new TypeError('No currentTime getter specified');
+ }
+ if (!settings.mediaSource) {
+ throw new TypeError('No MediaSource specified');
+ }
+ // public properties
+ _this.bandwidth = settings.bandwidth;
+ _this.throughput = { rate: 0, count: 0 };
+ _this.roundTrip = NaN;
+ _this.resetStats_();
+ _this.mediaIndex = null;
+
+ // private settings
+ _this.hasPlayed_ = settings.hasPlayed;
+ _this.currentTime_ = settings.currentTime;
+ _this.seekable_ = settings.seekable;
+ _this.seeking_ = settings.seeking;
+ _this.duration_ = settings.duration;
+ _this.mediaSource_ = settings.mediaSource;
+ _this.hls_ = settings.hls;
+ _this.loaderType_ = settings.loaderType;
+ _this.startingMedia_ = void 0;
+ _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
+ _this.goalBufferLength_ = settings.goalBufferLength;
+ _this.sourceType_ = settings.sourceType;
+ _this.inbandTextTracks_ = settings.inbandTextTracks;
+ _this.state_ = 'INIT';
+
+ // private instance variables
+ _this.checkBufferTimeout_ = null;
+ _this.error_ = void 0;
+ _this.currentTimeline_ = -1;
+ _this.pendingSegment_ = null;
+ _this.mimeType_ = null;
+ _this.sourceUpdater_ = null;
+ _this.xhrOptions_ = null;
+
+ // Fragmented mp4 playback
+ _this.activeInitSegmentId_ = null;
+ _this.initSegments_ = {};
+ // Fmp4 CaptionParser
+ _this.captionParser_ = new CaptionParser();
+
+ _this.decrypter_ = settings.decrypter;
+
+ // Manages the tracking and generation of sync-points, mappings
+ // between a time in the display time and a segment index within
+ // a playlist
+ _this.syncController_ = settings.syncController;
+ _this.syncPoint_ = {
+ segmentIndex: 0,
+ time: 0
+ };
+
+ _this.syncController_.on('syncinfoupdate', function () {
+ return _this.trigger('syncinfoupdate');
+ });
+
+ _this.mediaSource_.addEventListener('sourceopen', function () {
+ return _this.ended_ = false;
+ });
+
+ // ...for determining the fetch location
+ _this.fetchAtBuffer_ = false;
+
+ _this.logger_ = logger('SegmentLoader[' + _this.loaderType_ + ']');
+
+ Object.defineProperty(_this, 'state', {
+ get: function get$$1() {
+ return this.state_;
+ },
+ set: function set$$1(newState) {
+ if (newState !== this.state_) {
+ this.logger_(this.state_ + ' -> ' + newState);
+ this.state_ = newState;
+ }
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * reset all of our media stats
+ *
+ * @private
+ */
+
+ createClass$1(SegmentLoader, [{
+ key: 'resetStats_',
+ value: function resetStats_() {
+ this.mediaBytesTransferred = 0;
+ this.mediaRequests = 0;
+ this.mediaRequestsAborted = 0;
+ this.mediaRequestsTimedout = 0;
+ this.mediaRequestsErrored = 0;
+ this.mediaTransferDuration = 0;
+ this.mediaSecondsLoaded = 0;
+ }
+
+ /**
+ * dispose of the SegmentLoader and reset to the default state
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.state = 'DISPOSED';
+ this.pause();
+ this.abort_();
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.dispose();
+ }
+ this.resetStats_();
+ this.captionParser_.reset();
+ }
+
+ /**
+ * abort anything that is currently doing on with the SegmentLoader
+ * and reset to a default state
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.state !== 'WAITING') {
+ if (this.pendingSegment_) {
+ this.pendingSegment_ = null;
+ }
+ return;
+ }
+
+ this.abort_();
+
+ // We aborted the requests we were waiting on, so reset the loader's state to READY
+ // since we are no longer "waiting" on any requests. XHR callback is not always run
+ // when the request is aborted. This will prevent the loader from being stuck in the
+ // WAITING state indefinitely.
+ this.state = 'READY';
+
+ // don't wait for buffer check timeouts to begin fetching the
+ // next segment
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * abort all pending xhr requests and null any pending segements
+ *
+ * @private
+ */
+
+ }, {
+ key: 'abort_',
+ value: function abort_() {
+ if (this.pendingSegment_) {
+ this.pendingSegment_.abortRequests();
+ }
+
+ // clear out the segment being processed
+ this.pendingSegment_ = null;
+ }
+
+ /**
+ * set an error on the segment loader and null out any pending segements
+ *
+ * @param {Error} error the error to set on the SegmentLoader
+ * @return {Error} the error that was set or that is currently set
+ */
+
+ }, {
+ key: 'error',
+ value: function error(_error) {
+ if (typeof _error !== 'undefined') {
+ this.error_ = _error;
+ }
+
+ this.pendingSegment_ = null;
+ return this.error_;
+ }
+ }, {
+ key: 'endOfStream',
+ value: function endOfStream() {
+ this.ended_ = true;
+ this.pause();
+ this.trigger('ended');
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ }, {
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.sourceUpdater_) {
+ return videojs$1.createTimeRanges();
+ }
+
+ return this.sourceUpdater_.buffered();
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: map.bytes,
+ timescales: map.timescales,
+ videoTrackIds: map.videoTrackIds
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && (
+ // the source updater is created when init_ is called, so either having a
+ // source updater or being in the INIT state with a mimeType is enough
+ // to say we have all the needed configuration to start loading.
+ this.sourceUpdater_ || this.mimeType_ && this.state === 'INIT') && !this.paused();
+ }
+
+ /**
+ * load a playlist and start to fill the buffer
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ // un-pause
+ this.monitorBuffer_();
+
+ // if we don't have a playlist yet, keep waiting for one to be
+ // specified
+ if (!this.playlist_) {
+ return;
+ }
+
+ // not sure if this is the best place for this
+ this.syncController_.setDateTimeMapping(this.playlist_);
+
+ // if all the configuration is ready, initialize and begin loading
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ // if we're in the middle of processing a segment already, don't
+ // kick off an additional segment request
+ if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
+ return;
+ }
+
+ this.state = 'READY';
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.sourceUpdater_ = new SourceUpdater(this.mediaSource_, this.mimeType_, this.loaderType_, this.sourceBufferEmitter_);
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * set a playlist on the segment loader
+ *
+ * @param {PlaylistLoader} media the playlist to set on the segment loader
+ */
+
+ }, {
+ key: 'playlist',
+ value: function playlist(newPlaylist) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ if (!newPlaylist) {
+ return;
+ }
+
+ var oldPlaylist = this.playlist_;
+ var segmentInfo = this.pendingSegment_;
+
+ this.playlist_ = newPlaylist;
+ this.xhrOptions_ = options;
+
+ // when we haven't started playing yet, the start of a live playlist
+ // is always our zero-time so force a sync update each time the playlist
+ // is refreshed from the server
+ if (!this.hasPlayed_()) {
+ newPlaylist.syncInfo = {
+ mediaSequence: newPlaylist.mediaSequence,
+ time: 0
+ };
+ }
+
+ var oldId = oldPlaylist ? oldPlaylist.id : null;
+
+ this.logger_('playlist update [' + oldId + ' => ' + newPlaylist.id + ']');
+
+ // in VOD, this is always a rendition switch (or we updated our syncInfo above)
+ // in LIVE, we always want to update with new playlists (including refreshes)
+ this.trigger('syncinfoupdate');
+
+ // if we were unpaused but waiting for a playlist, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
+ if (this.mediaIndex !== null) {
+ // we must "resync" the segment loader when we switch renditions and
+ // the segment loader is already synced to the previous rendition
+ this.resyncLoader();
+ }
+
+ // the rest of this function depends on `oldPlaylist` being defined
+ return;
+ }
+
+ // we reloaded the same playlist so we are in a live scenario
+ // and we will likely need to adjust the mediaIndex
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ this.logger_('live window shift [' + mediaSequenceDiff + ']');
+
+ // update the mediaIndex on the SegmentLoader
+ // this is important because we can abort a request and this value must be
+ // equal to the last appended mediaIndex
+ if (this.mediaIndex !== null) {
+ this.mediaIndex -= mediaSequenceDiff;
+ }
+
+ // update the mediaIndex on the SegmentInfo object
+ // this is important because we will update this.mediaIndex with this value
+ // in `handleUpdateEnd_` after the segment has been successfully appended
+ if (segmentInfo) {
+ segmentInfo.mediaIndex -= mediaSequenceDiff;
+
+ // we need to update the referenced segment so that timing information is
+ // saved for the new playlist's segment, however, if the segment fell off the
+ // playlist, we can leave the old reference and just lose the timing info
+ if (segmentInfo.mediaIndex >= 0) {
+ segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
+ }
+ }
+
+ this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
+ }
+
+ /**
+ * Prevent the loader from fetching additional segments. If there
+ * is a segment request outstanding, it will finish processing
+ * before the loader halts. A segment loader can be unpaused by
+ * calling load().
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+
+ this.checkBufferTimeout_ = null;
+ }
+ }
+
+ /**
+ * Returns whether the segment loader is fetching additional
+ * segments when given the opportunity. This property can be
+ * modified through calls to pause() and load().
+ */
+
+ }, {
+ key: 'paused',
+ value: function paused() {
+ return this.checkBufferTimeout_ === null;
+ }
+
+ /**
+ * create/set the following mimetype on the SourceBuffer through a
+ * SourceUpdater
+ *
+ * @param {String} mimeType the mime type string to use
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer
+ * is added to the media source
+ */
+
+ }, {
+ key: 'mimeType',
+ value: function mimeType(_mimeType, sourceBufferEmitter) {
+ if (this.mimeType_) {
+ return;
+ }
+
+ this.mimeType_ = _mimeType;
+ this.sourceBufferEmitter_ = sourceBufferEmitter;
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+ }
+
+ /**
+ * Delete all the buffered data and reset the SegmentLoader
+ * @param {Function} [done] an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'resetEverything',
+ value: function resetEverything(done) {
+ this.ended_ = false;
+ this.resetLoader();
+ this.remove(0, this.duration_(), done);
+ // clears fmp4 captions
+ this.captionParser_.clearAllCaptions();
+ this.trigger('reseteverything');
+ }
+
+ /**
+ * Force the SegmentLoader to resync and start loading around the currentTime instead
+ * of starting at the end of the buffer
+ *
+ * Useful for fast quality changes
+ */
+
+ }, {
+ key: 'resetLoader',
+ value: function resetLoader() {
+ this.fetchAtBuffer_ = false;
+ this.resyncLoader();
+ }
+
+ /**
+ * Force the SegmentLoader to restart synchronization and make a conservative guess
+ * before returning to the simple walk-forward method
+ */
+
+ }, {
+ key: 'resyncLoader',
+ value: function resyncLoader() {
+ this.mediaIndex = null;
+ this.syncPoint_ = null;
+ this.abort();
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ * @param {Function} [done] - an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end, done) {
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.remove(start, end, done);
+ }
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ if (this.inbandTextTracks_) {
+ for (var id in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[id]);
+ }
+ }
+ }
+
+ /**
+ * (re-)schedule monitorBufferTick_ to run as soon as possible
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBuffer_',
+ value: function monitorBuffer_() {
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window$1.setTimeout(this.monitorBufferTick_.bind(this), 1);
+ }
+
+ /**
+ * As long as the SegmentLoader is in the READY state, periodically
+ * invoke fillBuffer_().
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBufferTick_',
+ value: function monitorBufferTick_() {
+ if (this.state === 'READY') {
+ this.fillBuffer_();
+ }
+
+ if (this.checkBufferTimeout_) {
+ window$1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window$1.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ if (this.sourceUpdater_.updating()) {
+ return;
+ }
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ var isEndOfStream = detectEndOfStream(this.playlist_, this.mediaSource_, segmentInfo.mediaIndex);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ return;
+ }
+
+ if (segmentInfo.mediaIndex === this.playlist_.segments.length - 1 && this.mediaSource_.readyState === 'ended' && !this.seeking_()) {
+ return;
+ }
+
+ // We will need to change timestampOffset of the sourceBuffer if either of
+ // the following conditions are true:
+ // - The segment.timeline !== this.currentTimeline
+ // (we are crossing a discontinuity somehow)
+ // - The "timestampOffset" for the start of this segment is less than
+ // the currently set timestampOffset
+ // Also, clear captions if we are crossing a discontinuity boundary
+ if (segmentInfo.timeline !== this.currentTimeline_ || segmentInfo.startOfSegment !== null && segmentInfo.startOfSegment < this.sourceUpdater_.timestampOffset()) {
+ this.syncController_.reset();
+ segmentInfo.timestampOffset = segmentInfo.startOfSegment;
+ this.captionParser_.clearAllCaptions();
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Determines what segment request should be made, given current playback
+ * state.
+ *
+ * @param {TimeRanges} buffered - the state of the buffer
+ * @param {Object} playlist - the playlist object to fetch segments from
+ * @param {Number} mediaIndex - the previous mediaIndex fetched or null
+ * @param {Boolean} hasPlayed - a flag indicating whether we have played or not
+ * @param {Number} currentTime - the playback position in seconds
+ * @param {Object} syncPoint - a segment info object that describes the
+ * @returns {Object} a segment request object that describes the segment to load
+ */
+
+ }, {
+ key: 'checkBuffer_',
+ value: function checkBuffer_(buffered, playlist, mediaIndex, hasPlayed, currentTime, syncPoint) {
+ var lastBufferedEnd = 0;
+ var startOfSegment = void 0;
+
+ if (buffered.length) {
+ lastBufferedEnd = buffered.end(buffered.length - 1);
+ }
+
+ var bufferedTime = Math.max(0, lastBufferedEnd - currentTime);
+
+ if (!playlist.segments.length) {
+ return null;
+ }
+
+ // if there is plenty of content buffered, and the video has
+ // been played before relax for awhile
+ if (bufferedTime >= this.goalBufferLength_()) {
+ return null;
+ }
+
+ // if the video has not yet played once, and we already have
+ // one segment downloaded do nothing
+ if (!hasPlayed && bufferedTime >= 1) {
+ return null;
+ }
+
+ // When the syncPoint is null, there is no way of determining a good
+ // conservative segment index to fetch from
+ // The best thing to do here is to get the kind of sync-point data by
+ // making a request
+ if (syncPoint === null) {
+ mediaIndex = this.getSyncSegmentCandidate_(playlist);
+ return this.generateSegmentInfo_(playlist, mediaIndex, null, true);
+ }
+
+ // Under normal playback conditions fetching is a simple walk forward
+ if (mediaIndex !== null) {
+ var segment = playlist.segments[mediaIndex];
+
+ if (segment && segment.end) {
+ startOfSegment = segment.end;
+ } else {
+ startOfSegment = lastBufferedEnd;
+ }
+ return this.generateSegmentInfo_(playlist, mediaIndex + 1, startOfSegment, false);
+ }
+
+ // There is a sync-point but the lack of a mediaIndex indicates that
+ // we need to make a good conservative guess about which segment to
+ // fetch
+ if (this.fetchAtBuffer_) {
+ // Find the segment containing the end of the buffer
+ var mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, lastBufferedEnd, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = mediaSourceInfo.mediaIndex;
+ startOfSegment = mediaSourceInfo.startTime;
+ } else {
+ // Find the segment containing currentTime
+ var _mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, currentTime, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = _mediaSourceInfo.mediaIndex;
+ startOfSegment = _mediaSourceInfo.startTime;
+ }
+
+ return this.generateSegmentInfo_(playlist, mediaIndex, startOfSegment, false);
+ }
+
+ /**
+ * The segment loader has no recourse except to fetch a segment in the
+ * current playlist and use the internal timestamps in that segment to
+ * generate a syncPoint. This function returns a good candidate index
+ * for that process.
+ *
+ * @param {Object} playlist - the playlist object to look for a
+ * @returns {Number} An index of a segment from the playlist to load
+ */
+
+ }, {
+ key: 'getSyncSegmentCandidate_',
+ value: function getSyncSegmentCandidate_(playlist) {
+ var _this2 = this;
+
+ if (this.currentTimeline_ === -1) {
+ return 0;
+ }
+
+ var segmentIndexArray = playlist.segments.map(function (s, i) {
+ return {
+ timeline: s.timeline,
+ segmentIndex: i
+ };
+ }).filter(function (s) {
+ return s.timeline === _this2.currentTimeline_;
+ });
+
+ if (segmentIndexArray.length) {
+ return segmentIndexArray[Math.min(segmentIndexArray.length - 1, 1)].segmentIndex;
+ }
+
+ return Math.max(playlist.segments.length - 1, 0);
+ }
+ }, {
+ key: 'generateSegmentInfo_',
+ value: function generateSegmentInfo_(playlist, mediaIndex, startOfSegment, isSyncRequest) {
+ if (mediaIndex < 0 || mediaIndex >= playlist.segments.length) {
+ return null;
+ }
+
+ var segment = playlist.segments[mediaIndex];
+
+ return {
+ requestId: 'segment-loader-' + Math.random(),
+ // resolve the segment URL relative to the playlist
+ uri: segment.resolvedUri,
+ // the segment's mediaIndex at the time it was requested
+ mediaIndex: mediaIndex,
+ // whether or not to update the SegmentLoader's state with this
+ // segment's mediaIndex
+ isSyncRequest: isSyncRequest,
+ startOfSegment: startOfSegment,
+ // the segment's playlist
+ playlist: playlist,
+ // unencrypted bytes of the segment
+ bytes: null,
+ // when a key is defined for this segment, the encrypted bytes
+ encryptedBytes: null,
+ // The target timestampOffset for this segment when we append it
+ // to the source buffer
+ timestampOffset: null,
+ // The timeline that the segment is in
+ timeline: segment.timeline,
+ // The expected duration of the segment in seconds
+ duration: segment.duration,
+ // retain the segment in case the playlist updates while doing an async process
+ segment: segment
+ };
+ }
+
+ /**
+ * Determines if the network has enough bandwidth to complete the current segment
+ * request in a timely manner. If not, the request will be aborted early and bandwidth
+ * updated to trigger a playlist switch.
+ *
+ * @param {Object} stats
+ * Object containing stats about the request timing and size
+ * @return {Boolean} True if the request was aborted, false otherwise
+ * @private
+ */
+
+ }, {
+ key: 'abortRequestEarly_',
+ value: function abortRequestEarly_(stats) {
+ if (this.hls_.tech_.paused() ||
+ // Don't abort if the current playlist is on the lowestEnabledRendition
+ // TODO: Replace using timeout with a boolean indicating whether this playlist is
+ // the lowestEnabledRendition.
+ !this.xhrOptions_.timeout ||
+ // Don't abort if we have no bandwidth information to estimate segment sizes
+ !this.playlist_.attributes.BANDWIDTH) {
+ return false;
+ }
+
+ // Wait at least 1 second since the first byte of data has been received before
+ // using the calculated bandwidth from the progress event to allow the bitrate
+ // to stabilize
+ if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
+ return false;
+ }
+
+ var currentTime = this.currentTime_();
+ var measuredBandwidth = stats.bandwidth;
+ var segmentDuration = this.pendingSegment_.duration;
+
+ var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived);
+
+ // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
+ // if we are only left with less than 1 second when the request completes.
+ // A negative timeUntilRebuffering indicates we are already rebuffering
+ var timeUntilRebuffer$$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.hls_.tech_.playbackRate()) - 1;
+
+ // Only consider aborting early if the estimated time to finish the download
+ // is larger than the estimated time until the player runs out of forward buffer
+ if (requestTimeRemaining <= timeUntilRebuffer$$1) {
+ return false;
+ }
+
+ var switchCandidate = minRebufferMaxBandwidthSelector({
+ master: this.hls_.playlists.master,
+ currentTime: currentTime,
+ bandwidth: measuredBandwidth,
+ duration: this.duration_(),
+ segmentDuration: segmentDuration,
+ timeUntilRebuffer: timeUntilRebuffer$$1,
+ currentTimeline: this.currentTimeline_,
+ syncController: this.syncController_
+ });
+
+ if (!switchCandidate) {
+ return;
+ }
+
+ var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$$1;
+
+ var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
+
+ var minimumTimeSaving = 0.5;
+
+ // If we are already rebuffering, increase the amount of variance we add to the
+ // potential round trip time of the new request so that we are not too aggressive
+ // with switching to a playlist that might save us a fraction of a second.
+ if (timeUntilRebuffer$$1 <= TIME_FUDGE_FACTOR) {
+ minimumTimeSaving = 1;
+ }
+
+ if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
+ return false;
+ }
+
+ // set the bandwidth to that of the desired playlist being sure to scale by
+ // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
+ // don't trigger a bandwidthupdate as the bandwidth is artifial
+ this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
+ this.abort();
+ this.trigger('earlyabort');
+ return true;
+ }
+
+ /**
+ * XHR `progress` event handler
+ *
+ * @param {Event}
+ * The XHR `progress` event
+ * @param {Object} simpleSegment
+ * A simplified segment object copy
+ * @private
+ */
+
+ }, {
+ key: 'handleProgress_',
+ value: function handleProgress_(event, simpleSegment) {
+ if (!this.pendingSegment_ || simpleSegment.requestId !== this.pendingSegment_.requestId || this.abortRequestEarly_(simpleSegment.stats)) {
+ return;
+ }
+
+ this.trigger('progress');
+ }
+
+ /**
+ * load a specific segment from a request into the buffer
+ *
+ * @private
+ */
+
+ }, {
+ key: 'loadSegment_',
+ value: function loadSegment_(segmentInfo) {
+ this.state = 'WAITING';
+ this.pendingSegment_ = segmentInfo;
+ this.trimBackBuffer_(segmentInfo);
+
+ segmentInfo.abortRequests = mediaSegmentRequest(this.hls_.xhr, this.xhrOptions_, this.decrypter_, this.captionParser_, this.createSimplifiedSegmentObj_(segmentInfo),
+ // progress callback
+ this.handleProgress_.bind(this), this.segmentRequestFinished_.bind(this));
+ }
+
+ /**
+ * trim the back buffer so that we don't have too much data
+ * in the source buffer
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ */
+
+ }, {
+ key: 'trimBackBuffer_',
+ value: function trimBackBuffer_(segmentInfo) {
+ var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10);
+
+ // Chrome has a hard limit of 150MB of
+ // buffer and a very conservative "garbage collector"
+ // We manually clear out the old buffer to ensure
+ // we don't trigger the QuotaExceeded error
+ // on the source buffer during subsequent appends
+
+ if (removeToTime > 0) {
+ this.remove(0, removeToTime);
+ }
+ }
+
+ /**
+ * created a simplified copy of the segment object with just the
+ * information necessary to perform the XHR and decryption
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ * @returns {Object} a simplified segment object copy
+ */
+
+ }, {
+ key: 'createSimplifiedSegmentObj_',
+ value: function createSimplifiedSegmentObj_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var simpleSegment = {
+ resolvedUri: segment.resolvedUri,
+ byterange: segment.byterange,
+ requestId: segmentInfo.requestId
+ };
+
+ if (segment.key) {
+ // if the media sequence is greater than 2^32, the IV will be incorrect
+ // assuming 10s segments, that would be about 1300 years
+ var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
+
+ simpleSegment.key = {
+ resolvedUri: segment.key.resolvedUri,
+ iv: iv
+ };
+ }
+
+ if (segment.map) {
+ simpleSegment.map = this.initSegment(segment.map);
+ }
+
+ return simpleSegment;
+ }
+
+ /**
+ * Handle the callback from the segmentRequest function and set the
+ * associated SegmentLoader state and errors if necessary
+ *
+ * @private
+ */
+
+ }, {
+ key: 'segmentRequestFinished_',
+ value: function segmentRequestFinished_(error, simpleSegment) {
+ // every request counts as a media request even if it has been aborted
+ // or canceled due to a timeout
+ this.mediaRequests += 1;
+
+ if (simpleSegment.stats) {
+ this.mediaBytesTransferred += simpleSegment.stats.bytesReceived;
+ this.mediaTransferDuration += simpleSegment.stats.roundTripTime;
+ }
+
+ // The request was aborted and the SegmentLoader has already been reset
+ if (!this.pendingSegment_) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ // the request was aborted and the SegmentLoader has already started
+ // another request. this can happen when the timeout for an aborted
+ // request triggers due to a limitation in the XHR library
+ // do not count this as any sort of request or we risk double-counting
+ if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
+ return;
+ }
+
+ // an error occurred from the active pendingSegment_ so reset everything
+ if (error) {
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+
+ // the requests were aborted just record the aborted stat and exit
+ // this is not a true error condition and nothing corrective needs
+ // to be done
+ if (error.code === REQUEST_ERRORS.ABORTED) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ this.pause();
+
+ // the error is really just that at least one of the requests timed-out
+ // set the bandwidth to a very low value and trigger an ABR switch to
+ // take emergency action
+ if (error.code === REQUEST_ERRORS.TIMEOUT) {
+ this.mediaRequestsTimedout += 1;
+ this.bandwidth = 1;
+ this.roundTrip = NaN;
+ this.trigger('bandwidthupdate');
+ return;
+ }
+
+ // if control-flow has arrived here, then the error is real
+ // emit an error event to blacklist the current playlist
+ this.mediaRequestsErrored += 1;
+ this.error(error);
+ this.trigger('error');
+ return;
+ }
+
+ // the response was a success so set any bandwidth stats the request
+ // generated for ABR purposes
+ this.bandwidth = simpleSegment.stats.bandwidth;
+ this.roundTrip = simpleSegment.stats.roundTripTime;
+
+ // if this request included an initialization segment, save that data
+ // to the initSegment cache
+ if (simpleSegment.map) {
+ simpleSegment.map = this.initSegment(simpleSegment.map, true);
+ }
+
+ this.processSegmentResponse_(simpleSegment);
+ }
+
+ /**
+ * Move any important data from the simplified segment object
+ * back to the real segment object for future phases
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processSegmentResponse_',
+ value: function processSegmentResponse_(simpleSegment) {
+ var segmentInfo = this.pendingSegment_;
+
+ segmentInfo.bytes = simpleSegment.bytes;
+ if (simpleSegment.map) {
+ segmentInfo.segment.map.bytes = simpleSegment.map.bytes;
+ }
+
+ segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
+
+ // This has fmp4 captions, add them to text tracks
+ if (simpleSegment.fmp4Captions) {
+ createCaptionsTrackIfNotExists(this.inbandTextTracks_, this.hls_.tech_, simpleSegment.captionStreams);
+ addCaptionData({
+ inbandTextTracks: this.inbandTextTracks_,
+ captionArray: simpleSegment.fmp4Captions,
+ // fmp4s will not have a timestamp offset
+ timestampOffset: 0
+ });
+ // Reset stored captions since we added parsed
+ // captions to a text track at this point
+ this.captionParser_.clearParsedCaptions();
+ }
+
+ this.handleSegment_();
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var timingInfo = this.syncController_.probeSegmentInfo(segmentInfo);
+
+ // When we have our first timing info, determine what media types this loader is
+ // dealing with. Although we're maintaining extra state, it helps to preserve the
+ // separation of segment loader from the actual source buffers.
+ if (typeof this.startingMedia_ === 'undefined' && timingInfo && (
+ // Guard against cases where we're not getting timing info at all until we are
+ // certain that all streams will provide it.
+ timingInfo.containsAudio || timingInfo.containsVideo)) {
+ this.startingMedia_ = {
+ containsAudio: timingInfo.containsAudio,
+ containsVideo: timingInfo.containsVideo
+ };
+ }
+
+ var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.startingMedia_, timingInfo);
+
+ if (illegalMediaSwitchError) {
+ this.error({
+ message: illegalMediaSwitchError,
+ blacklistDuration: Infinity
+ });
+ this.trigger('error');
+ return;
+ }
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ if (segmentInfo.timestampOffset !== null && segmentInfo.timestampOffset !== this.sourceUpdater_.timestampOffset()) {
+ this.sourceUpdater_.timestampOffset(segmentInfo.timestampOffset);
+ // fired when a timestamp offset is set in HLS (can also identify discontinuities)
+ this.trigger('timestampoffset');
+ }
+
+ var timelineMapping = this.syncController_.mappingForTimeline(segmentInfo.timeline);
+
+ if (timelineMapping !== null) {
+ this.trigger({
+ type: 'segmenttimemapping',
+ mapping: timelineMapping
+ });
+ }
+
+ this.state = 'APPENDING';
+
+ // if the media initialization segment is changing, append it
+ // before the content segment
+ if (segment.map) {
+ var initId = initSegmentId(segment.map);
+
+ if (!this.activeInitSegmentId_ || this.activeInitSegmentId_ !== initId) {
+ var initSegment = this.initSegment(segment.map);
+
+ this.sourceUpdater_.appendBuffer(initSegment.bytes, function () {
+ _this3.activeInitSegmentId_ = initId;
+ });
+ }
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+ if (typeof segment.start === 'number' && typeof segment.end === 'number') {
+ this.mediaSecondsLoaded += segment.end - segment.start;
+ } else {
+ this.mediaSecondsLoaded += segment.duration;
+ }
+
+ this.logger_(segmentInfoString(segmentInfo));
+
+ this.sourceUpdater_.appendBuffer(segmentInfo.bytes, this.handleUpdateEnd_.bind(this));
+ }
+
+ /**
+ * callback to run when appendBuffer is finished. detects if we are
+ * in a good state to do things with the data we got, or if we need
+ * to wait for more
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleUpdateEnd_',
+ value: function handleUpdateEnd_() {
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var isWalkingForward = this.mediaIndex !== null;
+
+ this.pendingSegment_ = null;
+ this.recordThroughput_(segmentInfo);
+ this.addSegmentMetadataCue_(segmentInfo);
+
+ this.state = 'READY';
+
+ this.mediaIndex = segmentInfo.mediaIndex;
+ this.fetchAtBuffer_ = true;
+ this.currentTimeline_ = segmentInfo.timeline;
+
+ // We must update the syncinfo to recalculate the seekable range before
+ // the following conditional otherwise it may consider this a bad "guess"
+ // and attempt to resync when the post-update seekable window and live
+ // point would mean that this was the perfect segment to fetch
+ this.trigger('syncinfoupdate');
+
+ // If we previously appended a segment that ends more than 3 targetDurations before
+ // the currentTime_ that means that our conservative guess was too conservative.
+ // In that case, reset the loader state so that we try to use any information gained
+ // from the previous request to create a new, more accurate, sync-point.
+ if (segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3) {
+ this.resetEverything();
+ return;
+ }
+
+ // Don't do a rendition switch unless we have enough time to get a sync segment
+ // and conservatively guess
+ if (isWalkingForward) {
+ this.trigger('bandwidthupdate');
+ }
+ this.trigger('progress');
+
+ // any time an update finishes and the last segment is in the
+ // buffer, end the stream. this ensures the "ended" event will
+ // fire if playback reaches that point.
+ var isEndOfStream = detectEndOfStream(segmentInfo.playlist, this.mediaSource_, segmentInfo.mediaIndex + 1);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ }
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * Records the current throughput of the decrypt, transmux, and append
+ * portion of the semgment pipeline. `throughput.rate` is a the cumulative
+ * moving average of the throughput. `throughput.count` is the number of
+ * data points in the average.
+ *
+ * @private
+ * @param {Object} segmentInfo the object returned by loadSegment
+ */
+
+ }, {
+ key: 'recordThroughput_',
+ value: function recordThroughput_(segmentInfo) {
+ var rate = this.throughput.rate;
+ // Add one to the time to ensure that we don't accidentally attempt to divide
+ // by zero in the case where the throughput is ridiculously high
+ var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1;
+ // Multiply by 8000 to convert from bytes/millisecond to bits/second
+ var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000);
+
+ // This is just a cumulative moving average calculation:
+ // newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
+ this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
+ }
+
+ /**
+ * Adds a cue to the segment-metadata track with some metadata information about the
+ * segment
+ *
+ * @private
+ * @param {Object} segmentInfo
+ * the object returned by loadSegment
+ * @method addSegmentMetadataCue_
+ */
+
+ }, {
+ key: 'addSegmentMetadataCue_',
+ value: function addSegmentMetadataCue_(segmentInfo) {
+ if (!this.segmentMetadataTrack_) {
+ return;
+ }
+
+ var segment = segmentInfo.segment;
+ var start = segment.start;
+ var end = segment.end;
+
+ // Do not try adding the cue if the start and end times are invalid.
+ if (!finite(start) || !finite(end)) {
+ return;
+ }
+
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ var Cue = window$1.WebKitDataCue || window$1.VTTCue;
+ var value = {
+ bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
+ resolution: segmentInfo.playlist.attributes.RESOLUTION,
+ codecs: segmentInfo.playlist.attributes.CODECS,
+ byteLength: segmentInfo.byteLength,
+ uri: segmentInfo.uri,
+ timeline: segmentInfo.timeline,
+ playlist: segmentInfo.playlist.uri,
+ start: start,
+ end: end
+ };
+ var data = JSON.stringify(value);
+ var cue = new Cue(start, end, data);
+
+ // Attach the metadata to the value property of the cue to keep consistency between
+ // the differences of WebKitDataCue in safari and VTTCue in other browsers
+ cue.value = value;
+
+ this.segmentMetadataTrack_.addCue(cue);
+ }
+ }]);
+ return SegmentLoader;
+}(videojs$1.EventTarget);
+
+var uint8ToUtf8 = function uint8ToUtf8(uintArray) {
+ return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
+};
+
+/**
+ * @file vtt-segment-loader.js
+ */
+
+var VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(function (char) {
+ return char.charCodeAt(0);
+}));
+
+/**
+ * An object that manages segment loading and appending.
+ *
+ * @class VTTSegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+var VTTSegmentLoader = function (_SegmentLoader) {
+ inherits$1(VTTSegmentLoader, _SegmentLoader);
+
+ function VTTSegmentLoader(settings) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck$1(this, VTTSegmentLoader);
+
+ // SegmentLoader requires a MediaSource be specified or it will throw an error;
+ // however, VTTSegmentLoader has no need of a media source, so delete the reference
+ var _this = possibleConstructorReturn$1(this, (VTTSegmentLoader.__proto__ || Object.getPrototypeOf(VTTSegmentLoader)).call(this, settings, options));
+
+ _this.mediaSource_ = null;
+
+ _this.subtitlesTrack_ = null;
+ return _this;
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ createClass$1(VTTSegmentLoader, [{
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues.length) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var cues = this.subtitlesTrack_.cues;
+ var start = cues[0].startTime;
+ var end = cues[cues.length - 1].startTime;
+
+ return videojs$1.createTimeRanges([[start, end]]);
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ // append WebVTT line terminators to the media initialization segment if it exists
+ // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
+ // requires two or more WebVTT line terminators between the WebVTT header and the
+ // rest of the file
+ var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
+ var combinedSegment = new Uint8Array(combinedByteLength);
+
+ combinedSegment.set(map.bytes);
+ combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
+
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: combinedSegment
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && this.subtitlesTrack_ && !this.paused();
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * Set a subtitle track on the segment loader to add subtitles to
+ *
+ * @param {TextTrack=} track
+ * The text track to add loaded subtitles to
+ * @return {TextTrack}
+ * Returns the subtitles track
+ */
+
+ }, {
+ key: 'track',
+ value: function track(_track) {
+ if (typeof _track === 'undefined') {
+ return this.subtitlesTrack_;
+ }
+
+ this.subtitlesTrack_ = _track;
+
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+
+ return this.subtitlesTrack_;
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ removeCuesFromTrack(start, end, this.subtitlesTrack_);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ var _this2 = this;
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ segmentInfo = this.skipEmptySegments_(segmentInfo);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
+ // We don't have the timestamp offset that we need to sync subtitles.
+ // Rerun on a timestamp offset or user interaction.
+ var checkTimestampOffset = function checkTimestampOffset() {
+ _this2.state = 'READY';
+ if (!_this2.paused()) {
+ // if not paused, queue a buffer check as soon as possible
+ _this2.monitorBuffer_();
+ }
+ };
+
+ this.syncController_.one('timestampoffset', checkTimestampOffset);
+ this.state = 'WAITING_ON_TIMELINE';
+ return;
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Prevents the segment loader from requesting segments we know contain no subtitles
+ * by walking forward until we find the next segment that we don't know whether it is
+ * empty or not.
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @return {Object}
+ * a segment info object that describes the current segment
+ */
+
+ }, {
+ key: 'skipEmptySegments_',
+ value: function skipEmptySegments_(segmentInfo) {
+ while (segmentInfo && segmentInfo.segment.empty) {
+ segmentInfo = this.generateSegmentInfo_(segmentInfo.playlist, segmentInfo.mediaIndex + 1, segmentInfo.startOfSegment + segmentInfo.duration, segmentInfo.isSyncRequest);
+ }
+ return segmentInfo;
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_ || !this.subtitlesTrack_) {
+ this.state = 'READY';
+ return;
+ }
+
+ this.state = 'APPENDING';
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ if (typeof window$1.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {
+
+ var loadHandler = function loadHandler() {
+ _this3.handleSegment_();
+ };
+
+ this.state = 'WAITING_ON_VTTJS';
+ this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);
+ this.subtitlesTrack_.tech_.one('vttjserror', function () {
+ _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);
+ _this3.error({
+ message: 'Error loading vtt.js'
+ });
+ _this3.state = 'READY';
+ _this3.pause();
+ _this3.trigger('error');
+ });
+
+ return;
+ }
+
+ segment.requested = true;
+
+ try {
+ this.parseVTTCues_(segmentInfo);
+ } catch (e) {
+ this.error({
+ message: e.message
+ });
+ this.state = 'READY';
+ this.pause();
+ return this.trigger('error');
+ }
+
+ this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+
+ this.mediaSecondsLoaded += segment.duration;
+
+ if (segmentInfo.cues.length) {
+ // remove any overlapping cues to prevent doubling
+ this.remove(segmentInfo.cues[0].endTime, segmentInfo.cues[segmentInfo.cues.length - 1].endTime);
+ }
+
+ segmentInfo.cues.forEach(function (cue) {
+ _this3.subtitlesTrack_.addCue(cue);
+ });
+
+ this.handleUpdateEnd_();
+ }
+
+ /**
+ * Uses the WebVTT parser to parse the segment response
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @private
+ */
+
+ }, {
+ key: 'parseVTTCues_',
+ value: function parseVTTCues_(segmentInfo) {
+ var decoder = void 0;
+ var decodeBytesToString = false;
+
+ if (typeof window$1.TextDecoder === 'function') {
+ decoder = new window$1.TextDecoder('utf8');
+ } else {
+ decoder = window$1.WebVTT.StringDecoder();
+ decodeBytesToString = true;
+ }
+
+ var parser = new window$1.WebVTT.Parser(window$1, window$1.vttjs, decoder);
+
+ segmentInfo.cues = [];
+ segmentInfo.timestampmap = { MPEGTS: 0, LOCAL: 0 };
+
+ parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
+ parser.ontimestampmap = function (map) {
+ return segmentInfo.timestampmap = map;
+ };
+ parser.onparsingerror = function (error) {
+ videojs$1.log.warn('Error encountered when parsing cues: ' + error.message);
+ };
+
+ if (segmentInfo.segment.map) {
+ var mapData = segmentInfo.segment.map.bytes;
+
+ if (decodeBytesToString) {
+ mapData = uint8ToUtf8(mapData);
+ }
+
+ parser.parse(mapData);
+ }
+
+ var segmentData = segmentInfo.bytes;
+
+ if (decodeBytesToString) {
+ segmentData = uint8ToUtf8(segmentData);
+ }
+
+ parser.parse(segmentData);
+ parser.flush();
+ }
+
+ /**
+ * Updates the start and end times of any cues parsed by the WebVTT parser using
+ * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
+ * from the SyncController
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @param {Object} mappingObj
+ * object containing a mapping from TS to media time
+ * @param {Object} playlist
+ * the playlist object containing the segment
+ * @private
+ */
+
+ }, {
+ key: 'updateTimeMapping_',
+ value: function updateTimeMapping_(segmentInfo, mappingObj, playlist) {
+ var segment = segmentInfo.segment;
+
+ if (!mappingObj) {
+ // If the sync controller does not have a mapping of TS to Media Time for the
+ // timeline, then we don't have enough information to update the cue
+ // start/end times
+ return;
+ }
+
+ if (!segmentInfo.cues.length) {
+ // If there are no cues, we also do not have enough information to figure out
+ // segment timing. Mark that the segment contains no cues so we don't re-request
+ // an empty segment.
+ segment.empty = true;
+ return;
+ }
+
+ var timestampmap = segmentInfo.timestampmap;
+ var diff = timestampmap.MPEGTS / 90000 - timestampmap.LOCAL + mappingObj.mapping;
+
+ segmentInfo.cues.forEach(function (cue) {
+ // First convert cue time to TS time using the timestamp-map provided within the vtt
+ cue.startTime += diff;
+ cue.endTime += diff;
+ });
+
+ if (!playlist.syncInfo) {
+ var firstStart = segmentInfo.cues[0].startTime;
+ var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
+
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: Math.min(firstStart, lastStart - segment.duration)
+ };
+ }
+ }
+ }]);
+ return VTTSegmentLoader;
+}(SegmentLoader);
+
+/**
+ * @file ad-cue-tags.js
+ */
+
+/**
+ * Searches for an ad cue that overlaps with the given mediaTime
+ */
+var findAdCue = function findAdCue(track, mediaTime) {
+ var cues = track.cues;
+
+ for (var i = 0; i < cues.length; i++) {
+ var cue = cues[i];
+
+ if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
+ return cue;
+ }
+ }
+ return null;
+};
+
+var updateAdCues = function updateAdCues(media, track) {
+ var offset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ if (!media.segments) {
+ return;
+ }
+
+ var mediaTime = offset;
+ var cue = void 0;
+
+ for (var i = 0; i < media.segments.length; i++) {
+ var segment = media.segments[i];
+
+ if (!cue) {
+ // Since the cues will span for at least the segment duration, adding a fudge
+ // factor of half segment duration will prevent duplicate cues from being
+ // created when timing info is not exact (e.g. cue start time initialized
+ // at 10.006677, but next call mediaTime is 10.003332 )
+ cue = findAdCue(track, mediaTime + segment.duration / 2);
+ }
+
+ if (cue) {
+ if ('cueIn' in segment) {
+ // Found a CUE-IN so end the cue
+ cue.endTime = mediaTime;
+ cue.adEndTime = mediaTime;
+ mediaTime += segment.duration;
+ cue = null;
+ continue;
+ }
+
+ if (mediaTime < cue.endTime) {
+ // Already processed this mediaTime for this cue
+ mediaTime += segment.duration;
+ continue;
+ }
+
+ // otherwise extend cue until a CUE-IN is found
+ cue.endTime += segment.duration;
+ } else {
+ if ('cueOut' in segment) {
+ cue = new window$1.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
+ cue.adStartTime = mediaTime;
+ // Assumes tag format to be
+ // #EXT-X-CUE-OUT:30
+ cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
+ track.addCue(cue);
+ }
+
+ if ('cueOutCont' in segment) {
+ // Entered into the middle of an ad cue
+ var adOffset = void 0;
+ var adTotal = void 0;
+
+ // Assumes tag formate to be
+ // #EXT-X-CUE-OUT-CONT:10/30
+
+ var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat);
+
+ var _segment$cueOutCont$s2 = slicedToArray$1(_segment$cueOutCont$s, 2);
+
+ adOffset = _segment$cueOutCont$s2[0];
+ adTotal = _segment$cueOutCont$s2[1];
+
+ cue = new window$1.VTTCue(mediaTime, mediaTime + segment.duration, '');
+ cue.adStartTime = mediaTime - adOffset;
+ cue.adEndTime = cue.adStartTime + adTotal;
+ track.addCue(cue);
+ }
+ }
+ mediaTime += segment.duration;
+ }
+};
+
+/**
+ * @file sync-controller.js
+ */
+
+var tsprobe = tsInspector.inspect;
+
+var syncPointStrategies = [
+// Stategy "VOD": Handle the VOD-case where the sync-point is *always*
+// the equivalence display-time 0 === segment-index 0
+{
+ name: 'VOD',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (duration$$1 !== Infinity) {
+ var syncPoint = {
+ time: 0,
+ segmentIndex: 0
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+},
+// Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
+{
+ name: 'ProgramDateTime',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (!syncController.datetimeToDisplayTime) {
+ return null;
+ }
+
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.dateTimeObject) {
+ var segmentTime = segment.dateTimeObject.getTime() / 1000;
+ var segmentStart = segmentTime + syncController.datetimeToDisplayTime;
+ var distance = Math.abs(currentTime - segmentStart);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ lastDistance = distance;
+ syncPoint = {
+ time: segmentStart,
+ segmentIndex: i
+ };
+ }
+ }
+ return syncPoint;
+ }
+},
+// Stategy "Segment": We have a known time mapping for a timeline and a
+// segment in the current timeline with timing data
+{
+ name: 'Segment',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.timeline === currentTimeline && typeof segment.start !== 'undefined') {
+ var distance = Math.abs(currentTime - segment.start);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: segment.start,
+ segmentIndex: i
+ };
+ }
+ }
+ }
+ return syncPoint;
+ }
+},
+// Stategy "Discontinuity": We have a discontinuity with a known
+// display-time
+{
+ name: 'Discontinuity',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoint = null;
+
+ currentTime = currentTime || 0;
+
+ if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ var lastDistance = null;
+
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var discontinuitySync = syncController.discontinuities[discontinuity];
+
+ if (discontinuitySync) {
+ var distance = Math.abs(currentTime - discontinuitySync.time);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: discontinuitySync.time,
+ segmentIndex: segmentIndex
+ };
+ }
+ }
+ }
+ }
+ return syncPoint;
+ }
+},
+// Stategy "Playlist": We have a playlist with a known mapping of
+// segment index to display time
+{
+ name: 'Playlist',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (playlist.syncInfo) {
+ var syncPoint = {
+ time: playlist.syncInfo.time,
+ segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+}];
+
+var SyncController = function (_videojs$EventTarget) {
+ inherits$1(SyncController, _videojs$EventTarget);
+
+ function SyncController() {
+ classCallCheck$1(this, SyncController);
+
+ // Segment Loader state variables...
+ // ...for synching across variants
+ var _this = possibleConstructorReturn$1(this, (SyncController.__proto__ || Object.getPrototypeOf(SyncController)).call(this));
+
+ _this.inspectCache_ = undefined;
+
+ // ...for synching across variants
+ _this.timelines = [];
+ _this.discontinuities = [];
+ _this.datetimeToDisplayTime = null;
+
+ _this.logger_ = logger('SyncController');
+ return _this;
+ }
+
+ /**
+ * Find a sync-point for the playlist specified
+ *
+ * A sync-point is defined as a known mapping from display-time to
+ * a segment-index in the current playlist.
+ *
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinite if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Object}
+ * A sync-point object
+ */
+
+ createClass$1(SyncController, [{
+ key: 'getSyncPoint',
+ value: function getSyncPoint(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = this.runStrategies_(playlist, duration$$1, currentTimeline, currentTime);
+
+ if (!syncPoints.length) {
+ // Signal that we need to attempt to get a sync-point manually
+ // by fetching a segment in the playlist and constructing
+ // a sync-point from that information
+ return null;
+ }
+
+ // Now find the sync-point that is closest to the currentTime because
+ // that should result in the most accurate guess about which segment
+ // to fetch
+ return this.selectSyncPoint_(syncPoints, { key: 'time', value: currentTime });
+ }
+
+ /**
+ * Calculate the amount of time that has expired off the playlist during playback
+ *
+ * @param {Playlist} playlist
+ * Playlist object to calculate expired from
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playling a live source)
+ * @returns {Number|null}
+ * The amount of time that has expired off the playlist during playback. Null
+ * if no sync-points for the playlist can be found.
+ */
+
+ }, {
+ key: 'getExpiredTime',
+ value: function getExpiredTime(playlist, duration$$1) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+
+ var syncPoints = this.runStrategies_(playlist, duration$$1, playlist.discontinuitySequence, 0);
+
+ // Without sync-points, there is not enough information to determine the expired time
+ if (!syncPoints.length) {
+ return null;
+ }
+
+ var syncPoint = this.selectSyncPoint_(syncPoints, {
+ key: 'segmentIndex',
+ value: 0
+ });
+
+ // If the sync-point is beyond the start of the playlist, we want to subtract the
+ // duration from index 0 to syncPoint.segmentIndex instead of adding.
+ if (syncPoint.segmentIndex > 0) {
+ syncPoint.time *= -1;
+ }
+
+ return Math.abs(syncPoint.time + sumDurations(playlist, syncPoint.segmentIndex, 0));
+ }
+
+ /**
+ * Runs each sync-point strategy and returns a list of sync-points returned by the
+ * strategies
+ *
+ * @private
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Array}
+ * A list of sync-point objects
+ */
+
+ }, {
+ key: 'runStrategies_',
+ value: function runStrategies_(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = [];
+
+ // Try to find a sync-point in by utilizing various strategies...
+ for (var i = 0; i < syncPointStrategies.length; i++) {
+ var strategy = syncPointStrategies[i];
+ var syncPoint = strategy.run(this, playlist, duration$$1, currentTimeline, currentTime);
+
+ if (syncPoint) {
+ syncPoint.strategy = strategy.name;
+ syncPoints.push({
+ strategy: strategy.name,
+ syncPoint: syncPoint
+ });
+ }
+ }
+
+ return syncPoints;
+ }
+
+ /**
+ * Selects the sync-point nearest the specified target
+ *
+ * @private
+ * @param {Array} syncPoints
+ * List of sync-points to select from
+ * @param {Object} target
+ * Object specifying the property and value we are targeting
+ * @param {String} target.key
+ * Specifies the property to target. Must be either 'time' or 'segmentIndex'
+ * @param {Number} target.value
+ * The value to target for the specified key.
+ * @returns {Object}
+ * The sync-point nearest the target
+ */
+
+ }, {
+ key: 'selectSyncPoint_',
+ value: function selectSyncPoint_(syncPoints, target) {
+ var bestSyncPoint = syncPoints[0].syncPoint;
+ var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
+ var bestStrategy = syncPoints[0].strategy;
+
+ for (var i = 1; i < syncPoints.length; i++) {
+ var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
+
+ if (newDistance < bestDistance) {
+ bestDistance = newDistance;
+ bestSyncPoint = syncPoints[i].syncPoint;
+ bestStrategy = syncPoints[i].strategy;
+ }
+ }
+
+ this.logger_('syncPoint for [' + target.key + ': ' + target.value + '] chosen with strategy' + (' [' + bestStrategy + ']: [time:' + bestSyncPoint.time + ',') + (' segmentIndex:' + bestSyncPoint.segmentIndex + ']'));
+
+ return bestSyncPoint;
+ }
+
+ /**
+ * Save any meta-data present on the segments when segments leave
+ * the live window to the playlist to allow for synchronization at the
+ * playlist level later.
+ *
+ * @param {Playlist} oldPlaylist - The previous active playlist
+ * @param {Playlist} newPlaylist - The updated and most current playlist
+ */
+
+ }, {
+ key: 'saveExpiredSegmentInfo',
+ value: function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ // When a segment expires from the playlist and it has a start time
+ // save that information as a possible sync-point reference in future
+ for (var i = mediaSequenceDiff - 1; i >= 0; i--) {
+ var lastRemovedSegment = oldPlaylist.segments[i];
+
+ if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
+ newPlaylist.syncInfo = {
+ mediaSequence: oldPlaylist.mediaSequence + i,
+ time: lastRemovedSegment.start
+ };
+ this.logger_('playlist refresh sync: [time:' + newPlaylist.syncInfo.time + ',' + (' mediaSequence: ' + newPlaylist.syncInfo.mediaSequence + ']'));
+ this.trigger('syncinfoupdate');
+ break;
+ }
+ }
+ }
+
+ /**
+ * Save the mapping from playlist's ProgramDateTime to display. This should
+ * only ever happen once at the start of playback.
+ *
+ * @param {Playlist} playlist - The currently active playlist
+ */
+
+ }, {
+ key: 'setDateTimeMapping',
+ value: function setDateTimeMapping(playlist) {
+ if (!this.datetimeToDisplayTime && playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
+ var playlistTimestamp = playlist.segments[0].dateTimeObject.getTime() / 1000;
+
+ this.datetimeToDisplayTime = -playlistTimestamp;
+ }
+ }
+
+ /**
+ * Reset the state of the inspection cache when we do a rendition
+ * switch
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.inspectCache_ = undefined;
+ }
+
+ /**
+ * Probe or inspect a fmp4 or an mpeg2-ts segment to determine the start
+ * and end of the segment in it's internal "media time". Used to generate
+ * mappings from that internal "media time" to the display time that is
+ * shown on the player.
+ *
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'probeSegmentInfo',
+ value: function probeSegmentInfo(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var playlist = segmentInfo.playlist;
+ var timingInfo = void 0;
+
+ if (segment.map) {
+ timingInfo = this.probeMp4Segment_(segmentInfo);
+ } else {
+ timingInfo = this.probeTsSegment_(segmentInfo);
+ }
+
+ if (timingInfo) {
+ if (this.calculateSegmentTimeMapping_(segmentInfo, timingInfo)) {
+ this.saveDiscontinuitySyncInfo_(segmentInfo);
+
+ // If the playlist does not have sync information yet, record that information
+ // now with segment timing information
+ if (!playlist.syncInfo) {
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: segment.start
+ };
+ }
+ }
+ }
+
+ return timingInfo;
+ }
+
+ /**
+ * Probe an fmp4 or an mpeg2-ts segment to determine the start of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeMp4Segment_',
+ value: function probeMp4Segment_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var timescales = mp4probe.timescale(segment.map.bytes);
+ var startTime = mp4probe.startTime(timescales, segmentInfo.bytes);
+
+ if (segmentInfo.timestampOffset !== null) {
+ segmentInfo.timestampOffset -= startTime;
+ }
+
+ return {
+ start: startTime,
+ end: startTime + segment.duration
+ };
+ }
+
+ /**
+ * Probe an mpeg2-ts segment to determine the start and end of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeTsSegment_',
+ value: function probeTsSegment_(segmentInfo) {
+ var timeInfo = tsprobe(segmentInfo.bytes, this.inspectCache_);
+ var segmentStartTime = void 0;
+ var segmentEndTime = void 0;
+
+ if (!timeInfo) {
+ return null;
+ }
+
+ if (timeInfo.video && timeInfo.video.length === 2) {
+ this.inspectCache_ = timeInfo.video[1].dts;
+ segmentStartTime = timeInfo.video[0].dtsTime;
+ segmentEndTime = timeInfo.video[1].dtsTime;
+ } else if (timeInfo.audio && timeInfo.audio.length === 2) {
+ this.inspectCache_ = timeInfo.audio[1].dts;
+ segmentStartTime = timeInfo.audio[0].dtsTime;
+ segmentEndTime = timeInfo.audio[1].dtsTime;
+ }
+
+ return {
+ start: segmentStartTime,
+ end: segmentEndTime,
+ containsVideo: timeInfo.video && timeInfo.video.length === 2,
+ containsAudio: timeInfo.audio && timeInfo.audio.length === 2
+ };
+ }
+ }, {
+ key: 'timestampOffsetForTimeline',
+ value: function timestampOffsetForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].time;
+ }
+ }, {
+ key: 'mappingForTimeline',
+ value: function mappingForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].mapping;
+ }
+
+ /**
+ * Use the "media time" for a segment to generate a mapping to "display time" and
+ * save that display time to the segment.
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo
+ * The current active request information
+ * @param {object} timingInfo
+ * The start and end time of the current segment in "media time"
+ * @returns {Boolean}
+ * Returns false if segment time mapping could not be calculated
+ */
+
+ }, {
+ key: 'calculateSegmentTimeMapping_',
+ value: function calculateSegmentTimeMapping_(segmentInfo, timingInfo) {
+ var segment = segmentInfo.segment;
+ var mappingObj = this.timelines[segmentInfo.timeline];
+
+ if (segmentInfo.timestampOffset !== null) {
+ mappingObj = {
+ time: segmentInfo.startOfSegment,
+ mapping: segmentInfo.startOfSegment - timingInfo.start
+ };
+ this.timelines[segmentInfo.timeline] = mappingObj;
+ this.trigger('timestampoffset');
+
+ this.logger_('time mapping for timeline ' + segmentInfo.timeline + ': ' + ('[time: ' + mappingObj.time + '] [mapping: ' + mappingObj.mapping + ']'));
+
+ segment.start = segmentInfo.startOfSegment;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else if (mappingObj) {
+ segment.start = timingInfo.start + mappingObj.mapping;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Each time we have discontinuity in the playlist, attempt to calculate the location
+ * in display of the start of the discontinuity and save that. We also save an accuracy
+ * value so that we save values with the most accuracy (closest to 0.)
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'saveDiscontinuitySyncInfo_',
+ value: function saveDiscontinuitySyncInfo_(segmentInfo) {
+ var playlist = segmentInfo.playlist;
+ var segment = segmentInfo.segment;
+
+ // If the current segment is a discontinuity then we know exactly where
+ // the start of the range and it's accuracy is 0 (greater accuracy values
+ // mean more approximation)
+ if (segment.discontinuity) {
+ this.discontinuities[segment.timeline] = {
+ time: segment.start,
+ accuracy: 0
+ };
+ } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ // Search for future discontinuities that we can provide better timing
+ // information for and save that information for sync purposes
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
+ var accuracy = Math.abs(mediaIndexDiff);
+
+ if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
+ var time = void 0;
+
+ if (mediaIndexDiff < 0) {
+ time = segment.start - sumDurations(playlist, segmentInfo.mediaIndex, segmentIndex);
+ } else {
+ time = segment.end + sumDurations(playlist, segmentInfo.mediaIndex + 1, segmentIndex);
+ }
+
+ this.discontinuities[discontinuity] = {
+ time: time,
+ accuracy: accuracy
+ };
+ }
+ }
+ }
+ }
+ }]);
+ return SyncController;
+}(videojs$1.EventTarget);
+
+var Decrypter$1 = new shimWorker("./decrypter-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var decrypterWorker = function () {
+
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits$$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0;
+
+ // Compute double and third tables
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x;
+
+ // Compute MixColumns
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ }
+
+ // Compactify. Considerable speedup on Firefox.
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+ return tables;
+ };
+ var aesTables = null;
+
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck$$1(this, AES);
+
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+ if (!aesTables) {
+ aesTables = precompute();
+ }
+ // then make a copy of that object for use
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey];
+
+ // schedule encryption keys
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1];
+
+ // apply sbox
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
+
+ // shift rows and add rcon
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ }
+
+ // schedule decryption keys
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+ AES.prototype.decrypt = function decrypt$$1(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1];
+ // state variables a,b,c,d are loaded with pre-whitened data
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0;
+
+ // key.length === 2 ?
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1];
+
+ // load up the tables
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4];
+
+ // Inner rounds. Cribbed from OpenSSL.
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;b = b2;c = c2;
+ }
+
+ // Last round.
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;a = b;b = c;c = d;d = a2;
+ }
+ };
+
+ return AES;
+ }();
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream = function () {
+ function Stream() {
+ classCallCheck$$1(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ }
+
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file async-stream.js
+ */
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+ var AsyncStream$$1 = function (_Stream) {
+ inherits$$1(AsyncStream$$1, _Stream);
+
+ function AsyncStream$$1() {
+ classCallCheck$$1(this, AsyncStream$$1);
+
+ var _this = possibleConstructorReturn$$1(this, _Stream.call(this, Stream));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+ AsyncStream$$1.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+ AsyncStream$$1.prototype.push = function push(job) {
+ this.jobs.push(job);
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream$$1;
+ }(Stream);
+
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+ var decrypt$$1 = function decrypt$$1(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+
+ var decipher = new AES(Array.prototype.slice.call(key));
+
+ // byte and word-level access for the decrypted output
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer);
+
+ // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0;
+
+ // iteration variable
+ var wordIx = void 0;
+
+ // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3];
+
+ // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]);
+
+ // decrypt the block
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx);
+
+ // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3);
+
+ // setup the IV for the next round
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+ var Decrypter$$1 = function () {
+ function Decrypter$$1(encrypted, key, initVector, done) {
+ classCallCheck$$1(this, Decrypter$$1);
+
+ var step = Decrypter$$1.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+
+ this.asyncStream_ = new AsyncStream$$1();
+
+ // split up the encryption job and do the individual chunks asynchronously
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ }
+ // invoke the done() callback when everything is finished
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+ Decrypter$$1.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt$$1(encrypted, key, initVector);
+
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass$$1(Decrypter$$1, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter$$1;
+ }();
+
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+ };
+
+ /**
+ * Our web worker interface so that things can talk to aes-decrypter
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self
+ * the scope for the web worker
+ */
+ var DecrypterWorker = function DecrypterWorker(self) {
+ self.onmessage = function (event) {
+ var data = event.data;
+ var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
+ var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
+ var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
+
+ /* eslint-disable no-new, handle-callback-err */
+ new Decrypter$$1(encrypted, key, iv, function (err, bytes) {
+ self.postMessage(createTransferableMessage({
+ source: data.source,
+ decrypted: bytes
+ }), [bytes.buffer]);
+ });
+ /* eslint-enable */
+ };
+ };
+
+ var decrypterWorker = new DecrypterWorker(self);
+
+ return decrypterWorker;
+ }();
+});
+
+/**
+ * Convert the properties of an HLS track into an audioTrackKind.
+ *
+ * @private
+ */
+var audioTrackKind_ = function audioTrackKind_(properties) {
+ var kind = properties.default ? 'main' : 'alternative';
+
+ if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
+ kind = 'main-desc';
+ }
+
+ return kind;
+};
+
+/**
+ * Pause provided segment loader and playlist loader if active
+ *
+ * @param {SegmentLoader} segmentLoader
+ * SegmentLoader to pause
+ * @param {Object} mediaType
+ * Active media type
+ * @function stopLoaders
+ */
+var stopLoaders = function stopLoaders(segmentLoader, mediaType) {
+ segmentLoader.abort();
+ segmentLoader.pause();
+
+ if (mediaType && mediaType.activePlaylistLoader) {
+ mediaType.activePlaylistLoader.pause();
+ mediaType.activePlaylistLoader = null;
+ }
+};
+
+/**
+ * Start loading provided segment loader and playlist loader
+ *
+ * @param {PlaylistLoader} playlistLoader
+ * PlaylistLoader to start loading
+ * @param {Object} mediaType
+ * Active media type
+ * @function startLoaders
+ */
+var startLoaders = function startLoaders(playlistLoader, mediaType) {
+ // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
+ // playlist loader
+ mediaType.activePlaylistLoader = playlistLoader;
+ playlistLoader.load();
+};
+
+/**
+ * Returns a function to be called when the media group changes. It performs a
+ * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
+ * change of group is merely a rendition switch of the same content at another encoding,
+ * rather than a change of content, such as switching audio from English to Spanish.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a non-destructive resync of SegmentLoader when the active media
+ * group changes.
+ * @function onGroupChanged
+ */
+var onGroupChanged = function onGroupChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad[type],
+ mainSegmentLoader = _settings$segmentLoad.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ if (previousActiveLoader) {
+ // The previous group had a playlist loader but the new active group does not
+ // this means we are switching from demuxed to muxed audio. In this case we want to
+ // do a destructive reset of the main segment loader and not restart the audio
+ // loaders.
+ mainSegmentLoader.resetEverything();
+ }
+ return;
+ }
+
+ // Non-destructive resync
+ segmentLoader.resyncLoader();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+};
+
+/**
+ * Returns a function to be called when the media track changes. It performs a
+ * destructive reset of the SegmentLoader to ensure we start loading as close to
+ * currentTime as possible.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a destructive reset of SegmentLoader when the active media
+ * track changes.
+ * @function onTrackChanged
+ */
+var onTrackChanged = function onTrackChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad2 = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad2[type],
+ mainSegmentLoader = _settings$segmentLoad2.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active so we do not want to restart loaders
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ // when switching from demuxed audio/video to muxed audio/video (noted by no playlist
+ // loader for the audio group), we want to do a destructive reset of the main segment
+ // loader and not restart the audio loaders
+ mainSegmentLoader.resetEverything();
+ return;
+ }
+
+ if (previousActiveLoader === activeGroup.playlistLoader) {
+ // Nothing has actually changed. This can happen because track change events can fire
+ // multiple times for a "single" change. One for enabling the new active track, and
+ // one for disabling the track that was active
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ return;
+ }
+
+ if (segmentLoader.track) {
+ // For WebVTT, set the new text track in the segmentloader
+ segmentLoader.track(activeTrack);
+ }
+
+ // destructive reset
+ segmentLoader.resetEverything();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+};
+
+var onError = {
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning (or error if the playlist is blacklisted) to
+ * console and switches back to default audio track.
+ * @function onError.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type],
+ blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ // switch back to default audio track
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup();
+ var id = (activeGroup.filter(function (group) {
+ return group.default;
+ })[0] || activeGroup[0]).id;
+ var defaultTrack = mediaType.tracks[id];
+
+ if (activeTrack === defaultTrack) {
+ // Default track encountered an error. All we can do now is blacklist the current
+ // rendition and hope another will switch audio groups
+ blacklistCurrentPlaylist({
+ message: 'Problem encountered loading the default audio track.'
+ });
+ return;
+ }
+
+ videojs$1.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
+
+ for (var trackId in mediaType.tracks) {
+ mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
+ }
+
+ mediaType.onTrackChanged();
+ };
+ },
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning to console and disables the active subtitle track
+ * @function onError.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ videojs$1.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
+
+ stopLoaders(segmentLoader, mediaType);
+
+ var track = mediaType.activeTrack();
+
+ if (track) {
+ track.mode = 'disabled';
+ }
+
+ mediaType.onTrackChanged();
+ };
+ }
+};
+
+var setupListeners = {
+ /**
+ * Setup event listeners for audio playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.AUDIO
+ */
+ AUDIO: function AUDIO(type, playlistLoader, settings) {
+ if (!playlistLoader) {
+ // no playlist loader means audio will be muxed with the video
+ return;
+ }
+
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup event listeners for subtitle playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+ segmentLoader.track(mediaType.activeTrack());
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ }
+};
+
+var byGroupId = function byGroupId(type, groupId) {
+ return function (playlist) {
+ return playlist.attributes[type] === groupId;
+ };
+};
+
+var byResolvedUri = function byResolvedUri(resolvedUri) {
+ return function (playlist) {
+ return playlist.resolvedUri === resolvedUri;
+ };
+};
+
+var initialize = {
+ /**
+ * Setup PlaylistLoaders and AudioTracks for the audio groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.AUDIO
+ */
+ 'AUDIO': function AUDIO(type, settings) {
+ var hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ _settings$master = settings.master,
+ mediaGroups = _settings$master.mediaGroups,
+ playlists = _settings$master.playlists,
+ _settings$mediaTypes$ = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$.groups,
+ tracks = _settings$mediaTypes$.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ // force a default if we have none
+
+ if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
+ mediaGroups[type] = { main: { default: { default: true } } };
+ }
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ // List of playlists that have an AUDIO attribute value matching the current
+ // group ID
+ var groupPlaylists = playlists.filter(byGroupId(type, groupId));
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // List of playlists for the current group ID that have a matching uri with
+ // this alternate audio variant
+ var matchingPlaylists = groupPlaylists.filter(byResolvedUri(properties.resolvedUri));
+
+ if (matchingPlaylists.length) {
+ // If there is a playlist that has the same uri as this audio variant, assume
+ // that the playlist is audio only. We delete the resolvedUri property here
+ // to prevent a playlist loader from being created so that we don't have
+ // both the main and audio segment loaders loading the same audio segments
+ // from the same playlist.
+ delete properties.resolvedUri;
+ }
+
+ var playlistLoader = void 0;
+
+ if (properties.resolvedUri) {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (properties.playlists && sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ } else {
+ // no resolvedUri means the audio is muxed with the video when using this
+ // audio track
+ playlistLoader = null;
+ }
+
+ properties = videojs$1.mergeOptions({ id: variantLabel, playlistLoader: playlistLoader }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = new videojs$1.AudioTrack({
+ id: variantLabel,
+ kind: audioTrackKind_(properties),
+ enabled: false,
+ language: properties.language,
+ default: properties.default,
+ label: variantLabel
+ });
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup PlaylistLoaders and TextTracks for the subtitle groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.SUBTITLES
+ */
+ 'SUBTITLES': function SUBTITLES(type, settings) {
+ var tech = settings.tech,
+ hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$2 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$2.groups,
+ tracks = _settings$mediaTypes$2.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ if (mediaGroups[type][groupId][variantLabel].forced) {
+ // Subtitle playlists with the forced attribute are not selectable in Safari.
+ // According to Apple's HLS Authoring Specification:
+ // If content has forced subtitles and regular subtitles in a given language,
+ // the regular subtitles track in that language MUST contain both the forced
+ // subtitles and the regular subtitles for that language.
+ // Because of this requirement and that Safari does not add forced subtitles,
+ // forced subtitles are skipped here to maintain consistent experience across
+ // all platforms
+ continue;
+ }
+
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ var playlistLoader = void 0;
+
+ if (sourceType === 'hls') {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ }
+
+ properties = videojs$1.mergeOptions({
+ id: variantLabel,
+ playlistLoader: playlistLoader
+ }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: variantLabel,
+ kind: 'subtitles',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup TextTracks for the closed-caption groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize['CLOSED-CAPTIONS']
+ */
+ 'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {
+ var tech = settings.tech,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$3 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$3.groups,
+ tracks = _settings$mediaTypes$3.tracks;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // We only support CEA608 captions for now, so ignore anything that
+ // doesn't use a CCx INSTREAM-ID
+ if (!properties.instreamId.match(/CC\d/)) {
+ continue;
+ }
+
+ // No PlaylistLoader is required for Closed-Captions because the captions are
+ // embedded within the video stream
+ groups[groupId].push(videojs$1.mergeOptions({ id: variantLabel }, properties));
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: properties.instreamId,
+ kind: 'captions',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+ }
+};
+
+/**
+ * Returns a function used to get the active group of the provided type
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media group for the provided type. Takes an
+ * optional parameter {TextTrack} track. If no track is provided, a list of all
+ * variants in the group, otherwise the variant corresponding to the provided
+ * track is returned.
+ * @function activeGroup
+ */
+var activeGroup = function activeGroup(type, settings) {
+ return function (track) {
+ var masterPlaylistLoader = settings.masterPlaylistLoader,
+ groups = settings.mediaTypes[type].groups;
+
+ var media = masterPlaylistLoader.media();
+
+ if (!media) {
+ return null;
+ }
+
+ var variants = null;
+
+ if (media.attributes[type]) {
+ variants = groups[media.attributes[type]];
+ }
+
+ variants = variants || groups.main;
+
+ if (typeof track === 'undefined') {
+ return variants;
+ }
+
+ if (track === null) {
+ // An active track was specified so a corresponding group is expected. track === null
+ // means no track is currently active so there is no corresponding group
+ return null;
+ }
+
+ return variants.filter(function (props) {
+ return props.id === track.id;
+ })[0] || null;
+ };
+};
+
+var activeTrack = {
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].enabled) {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ },
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].mode === 'showing') {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ }
+};
+
+/**
+ * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
+ * Closed-Captions) specified in the master manifest.
+ *
+ * @param {Object} settings
+ * Object containing required information for setting up the media groups
+ * @param {SegmentLoader} settings.segmentLoaders.AUDIO
+ * Audio segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.SUBTITLES
+ * Subtitle segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.main
+ * Main segment loader
+ * @param {Tech} settings.tech
+ * The tech of the player
+ * @param {Object} settings.requestOptions
+ * XHR request options used by the segment loaders
+ * @param {PlaylistLoader} settings.masterPlaylistLoader
+ * PlaylistLoader for the master source
+ * @param {HlsHandler} settings.hls
+ * HLS SourceHandler
+ * @param {Object} settings.master
+ * The parsed master manifest
+ * @param {Object} settings.mediaTypes
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @param {Function} settings.blacklistCurrentPlaylist
+ * Blacklists the current rendition and forces a rendition switch.
+ * @function setupMediaGroups
+ */
+var setupMediaGroups = function setupMediaGroups(settings) {
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ initialize[type](type, settings);
+ });
+
+ var mediaTypes = settings.mediaTypes,
+ masterPlaylistLoader = settings.masterPlaylistLoader,
+ tech = settings.tech,
+ hls = settings.hls;
+
+ // setup active group and track getters and change event handlers
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ mediaTypes[type].activeGroup = activeGroup(type, settings);
+ mediaTypes[type].activeTrack = activeTrack[type](type, settings);
+ mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
+ mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
+ });
+
+ // DO NOT enable the default subtitle or caption track.
+ // DO enable the default audio track
+ var audioGroup = mediaTypes.AUDIO.activeGroup();
+ var groupId = (audioGroup.filter(function (group) {
+ return group.default;
+ })[0] || audioGroup[0]).id;
+
+ mediaTypes.AUDIO.tracks[groupId].enabled = true;
+ mediaTypes.AUDIO.onTrackChanged();
+
+ masterPlaylistLoader.on('mediachange', function () {
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ return mediaTypes[type].onGroupChanged();
+ });
+ });
+
+ // custom audio track change event handler for usage event
+ var onAudioTrackChanged = function onAudioTrackChanged() {
+ mediaTypes.AUDIO.onTrackChanged();
+ tech.trigger({ type: 'usage', name: 'hls-audio-change' });
+ };
+
+ tech.audioTracks().addEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+
+ hls.on('dispose', function () {
+ tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+ });
+
+ // clear existing audio tracks and add the ones we just created
+ tech.clearTracks('audio');
+
+ for (var id in mediaTypes.AUDIO.tracks) {
+ tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
+ }
+};
+
+/**
+ * Creates skeleton object used to store the loaders, tracks, and utility methods for each
+ * media type
+ *
+ * @return {Object}
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @function createMediaTypes
+ */
+var createMediaTypes = function createMediaTypes() {
+ var mediaTypes = {};
+
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ mediaTypes[type] = {
+ groups: {},
+ tracks: {},
+ activePlaylistLoader: null,
+ activeGroup: noop,
+ activeTrack: noop,
+ onGroupChanged: noop,
+ onTrackChanged: noop
+ };
+ });
+
+ return mediaTypes;
+};
+
+/**
+ * @file master-playlist-controller.js
+ */
+
+var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;
+
+var Hls = void 0;
+
+// SegmentLoader stats that need to have each loader's
+// values summed to calculate the final value
+var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred'];
+var sumLoaderStat = function sumLoaderStat(stat) {
+ return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
+};
+
+/**
+ * the master playlist controller controller all interactons
+ * between playlists and segmentloaders. At this time this mainly
+ * involves a master playlist and a series of audio playlists
+ * if they are available
+ *
+ * @class MasterPlaylistController
+ * @extends videojs.EventTarget
+ */
+var MasterPlaylistController = function (_videojs$EventTarget) {
+ inherits$1(MasterPlaylistController, _videojs$EventTarget);
+
+ function MasterPlaylistController(options) {
+ classCallCheck$1(this, MasterPlaylistController);
+
+ var _this = possibleConstructorReturn$1(this, (MasterPlaylistController.__proto__ || Object.getPrototypeOf(MasterPlaylistController)).call(this));
+
+ var url = options.url,
+ withCredentials = options.withCredentials,
+ tech = options.tech,
+ bandwidth = options.bandwidth,
+ externHls = options.externHls,
+ useCueTags = options.useCueTags,
+ blacklistDuration = options.blacklistDuration,
+ enableLowInitialPlaylist = options.enableLowInitialPlaylist,
+ sourceType = options.sourceType,
+ seekTo = options.seekTo;
+
+ if (!url) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ Hls = externHls;
+
+ _this.withCredentials = withCredentials;
+ _this.tech_ = tech;
+ _this.hls_ = tech.hls;
+ _this.seekTo_ = seekTo;
+ _this.sourceType_ = sourceType;
+ _this.useCueTags_ = useCueTags;
+ _this.blacklistDuration = blacklistDuration;
+ _this.enableLowInitialPlaylist = enableLowInitialPlaylist;
+ if (_this.useCueTags_) {
+ _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');
+ _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
+ }
+
+ _this.requestOptions_ = {
+ withCredentials: _this.withCredentials,
+ timeout: null
+ };
+
+ _this.mediaTypes_ = createMediaTypes();
+
+ _this.mediaSource = new videojs$1.MediaSource();
+
+ // load the media source into the player
+ _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_.bind(_this));
+
+ _this.seekable_ = videojs$1.createTimeRanges();
+ _this.hasPlayed_ = function () {
+ return false;
+ };
+
+ _this.syncController_ = new SyncController(options);
+ _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'segment-metadata'
+ }, false).track;
+
+ _this.decrypter_ = new Decrypter$1();
+ _this.inbandTextTracks_ = {};
+
+ var segmentLoaderSettings = {
+ hls: _this.hls_,
+ mediaSource: _this.mediaSource,
+ currentTime: _this.tech_.currentTime.bind(_this.tech_),
+ seekable: function seekable$$1() {
+ return _this.seekable();
+ },
+ seeking: function seeking() {
+ return _this.tech_.seeking();
+ },
+ duration: function duration$$1() {
+ return _this.mediaSource.duration;
+ },
+ hasPlayed: function hasPlayed() {
+ return _this.hasPlayed_();
+ },
+ goalBufferLength: function goalBufferLength() {
+ return _this.goalBufferLength();
+ },
+ bandwidth: bandwidth,
+ syncController: _this.syncController_,
+ decrypter: _this.decrypter_,
+ sourceType: _this.sourceType_,
+ inbandTextTracks: _this.inbandTextTracks_
+ };
+
+ _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(url, _this.hls_, _this.withCredentials) : new PlaylistLoader(url, _this.hls_, _this.withCredentials);
+ _this.setupMasterPlaylistLoaderListeners_();
+
+ // setup segment loaders
+ // combined audio/video or just video when alternate audio track is selected
+ _this.mainSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ segmentMetadataTrack: _this.segmentMetadataTrack_,
+ loaderType: 'main'
+ }), options);
+
+ // alternate audio track
+ _this.audioSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'audio'
+ }), options);
+
+ _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'vtt'
+ }), options);
+
+ _this.setupSegmentLoaderListeners_();
+
+ // Create SegmentLoader stat-getters
+ loaderStats.forEach(function (stat) {
+ _this[stat + '_'] = sumLoaderStat.bind(_this, stat);
+ });
+
+ _this.logger_ = logger('MPC');
+
+ _this.masterPlaylistLoader_.load();
+ return _this;
+ }
+
+ /**
+ * Register event handlers on the master playlist loader. A helper
+ * function for construction time.
+ *
+ * @private
+ */
+
+ createClass$1(MasterPlaylistController, [{
+ key: 'setupMasterPlaylistLoaderListeners_',
+ value: function setupMasterPlaylistLoaderListeners_() {
+ var _this2 = this;
+
+ this.masterPlaylistLoader_.on('loadedmetadata', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // if this isn't a live video and preload permits, start
+ // downloading segments
+ if (media.endList && _this2.tech_.preload() !== 'none') {
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+ _this2.mainSegmentLoader_.load();
+ }
+
+ setupMediaGroups({
+ sourceType: _this2.sourceType_,
+ segmentLoaders: {
+ AUDIO: _this2.audioSegmentLoader_,
+ SUBTITLES: _this2.subtitleSegmentLoader_,
+ main: _this2.mainSegmentLoader_
+ },
+ tech: _this2.tech_,
+ requestOptions: _this2.requestOptions_,
+ masterPlaylistLoader: _this2.masterPlaylistLoader_,
+ hls: _this2.hls_,
+ master: _this2.master(),
+ mediaTypes: _this2.mediaTypes_,
+ blacklistCurrentPlaylist: _this2.blacklistCurrentPlaylist.bind(_this2)
+ });
+
+ _this2.triggerPresenceUsage_(_this2.master(), media);
+
+ try {
+ _this2.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create SourceBuffers', e);
+ return _this2.mediaSource.endOfStream('decode');
+ }
+ _this2.setupFirstPlay();
+
+ _this2.trigger('selectedinitialmedia');
+ });
+
+ this.masterPlaylistLoader_.on('loadedplaylist', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+
+ if (!updatedPlaylist) {
+ // blacklist any variants that are not supported by the browser before selecting
+ // an initial media as the playlist selectors do not consider browser support
+ _this2.excludeUnsupportedVariants_();
+
+ var selectedMedia = void 0;
+
+ if (_this2.enableLowInitialPlaylist) {
+ selectedMedia = _this2.selectInitialPlaylist();
+ }
+
+ if (!selectedMedia) {
+ selectedMedia = _this2.selectPlaylist();
+ }
+
+ _this2.initialMedia_ = selectedMedia;
+ _this2.masterPlaylistLoader_.media(_this2.initialMedia_);
+ return;
+ }
+
+ if (_this2.useCueTags_) {
+ _this2.updateAdCues_(updatedPlaylist);
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `mediachange`
+ _this2.mainSegmentLoader_.playlist(updatedPlaylist, _this2.requestOptions_);
+ _this2.updateDuration();
+
+ // If the player isn't paused, ensure that the segment loader is running,
+ // as it is possible that it was temporarily stopped while waiting for
+ // a playlist (e.g., in case the playlist errored and we re-requested it).
+ if (!_this2.tech_.paused()) {
+ _this2.mainSegmentLoader_.load();
+ if (_this2.audioSegmentLoader_) {
+ _this2.audioSegmentLoader_.load();
+ }
+ }
+
+ if (!updatedPlaylist.endList) {
+ var addSeekableRange = function addSeekableRange() {
+ var seekable$$1 = _this2.seekable();
+
+ if (seekable$$1.length !== 0) {
+ _this2.mediaSource.addSeekableRange_(seekable$$1.start(0), seekable$$1.end(0));
+ }
+ };
+
+ if (_this2.duration() !== Infinity) {
+ var onDurationchange = function onDurationchange() {
+ if (_this2.duration() === Infinity) {
+ addSeekableRange();
+ } else {
+ _this2.tech_.one('durationchange', onDurationchange);
+ }
+ };
+
+ _this2.tech_.one('durationchange', onDurationchange);
+ } else {
+ addSeekableRange();
+ }
+ }
+ });
+
+ this.masterPlaylistLoader_.on('error', function () {
+ _this2.blacklistCurrentPlaylist(_this2.masterPlaylistLoader_.error);
+ });
+
+ this.masterPlaylistLoader_.on('mediachanging', function () {
+ _this2.mainSegmentLoader_.abort();
+ _this2.mainSegmentLoader_.pause();
+ });
+
+ this.masterPlaylistLoader_.on('mediachange', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `loadedplaylist`
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+
+ _this2.mainSegmentLoader_.load();
+
+ _this2.tech_.trigger({
+ type: 'mediachange',
+ bubbles: true
+ });
+ });
+
+ this.masterPlaylistLoader_.on('playlistunchanged', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+ var playlistOutdated = _this2.stuckAtPlaylistEnd_(updatedPlaylist);
+
+ if (playlistOutdated) {
+ // Playlist has stopped updating and we're stuck at its end. Try to
+ // blacklist it and switch to another playlist in the hope that that
+ // one is updating (and give the player a chance to re-adjust to the
+ // safe live point).
+ _this2.blacklistCurrentPlaylist({
+ message: 'Playlist no longer updating.'
+ });
+ // useful for monitoring QoS
+ _this2.tech_.trigger('playliststuck');
+ }
+ });
+
+ this.masterPlaylistLoader_.on('renditiondisabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-disabled' });
+ });
+ this.masterPlaylistLoader_.on('renditionenabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-enabled' });
+ });
+ }
+
+ /**
+ * A helper function for triggerring presence usage events once per source
+ *
+ * @private
+ */
+
+ }, {
+ key: 'triggerPresenceUsage_',
+ value: function triggerPresenceUsage_(master, media) {
+ var mediaGroups = master.mediaGroups || {};
+ var defaultDemuxed = true;
+ var audioGroupKeys = Object.keys(mediaGroups.AUDIO);
+
+ for (var mediaGroup in mediaGroups.AUDIO) {
+ for (var label in mediaGroups.AUDIO[mediaGroup]) {
+ var properties = mediaGroups.AUDIO[mediaGroup][label];
+
+ if (!properties.uri) {
+ defaultDemuxed = false;
+ }
+ }
+ }
+
+ if (defaultDemuxed) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-demuxed' });
+ }
+
+ if (Object.keys(mediaGroups.SUBTITLES).length) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-webvtt' });
+ }
+
+ if (Hls.Playlist.isAes(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-aes' });
+ }
+
+ if (Hls.Playlist.isFmp4(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-fmp4' });
+ }
+
+ if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-alternate-audio' });
+ }
+
+ if (this.useCueTags_) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-playlist-cue-tags' });
+ }
+ }
+ /**
+ * Register event handlers on the segment loaders. A helper function
+ * for construction time.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSegmentLoaderListeners_',
+ value: function setupSegmentLoaderListeners_() {
+ var _this3 = this;
+
+ this.mainSegmentLoader_.on('bandwidthupdate', function () {
+ var nextPlaylist = _this3.selectPlaylist();
+ var currentPlaylist = _this3.masterPlaylistLoader_.media();
+ var buffered = _this3.tech_.buffered();
+ var forwardBuffer = buffered.length ? buffered.end(buffered.length - 1) - _this3.tech_.currentTime() : 0;
+
+ var bufferLowWaterLine = _this3.bufferLowWaterLine();
+
+ // If the playlist is live, then we want to not take low water line into account.
+ // This is because in LIVE, the player plays 3 segments from the end of the
+ // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
+ // in those segments, a viewer will never experience a rendition upswitch.
+ if (!currentPlaylist.endList ||
+ // For the same reason as LIVE, we ignore the low water line when the VOD
+ // duration is below the max potential low water line
+ _this3.duration() < Config.MAX_BUFFER_LOW_WATER_LINE ||
+ // we want to switch down to lower resolutions quickly to continue playback, but
+ nextPlaylist.attributes.BANDWIDTH < currentPlaylist.attributes.BANDWIDTH ||
+ // ensure we have some buffer before we switch up to prevent us running out of
+ // buffer while loading a higher rendition.
+ forwardBuffer >= bufferLowWaterLine) {
+ _this3.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ _this3.tech_.trigger('bandwidthupdate');
+ });
+ this.mainSegmentLoader_.on('progress', function () {
+ _this3.trigger('progress');
+ });
+
+ this.mainSegmentLoader_.on('error', function () {
+ _this3.blacklistCurrentPlaylist(_this3.mainSegmentLoader_.error());
+ });
+
+ this.mainSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('timestampoffset', function () {
+ _this3.tech_.trigger({ type: 'usage', name: 'hls-timestamp-offset' });
+ });
+ this.audioSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+
+ this.mainSegmentLoader_.on('earlyabort', function () {
+ _this3.blacklistCurrentPlaylist({
+ message: 'Aborted early because there isn\'t enough bandwidth to complete the ' + 'request without rebuffering.'
+ }, ABORT_EARLY_BLACKLIST_SECONDS);
+ });
+
+ this.mainSegmentLoader_.on('reseteverything', function () {
+ // If playing an MTS stream, a videojs.MediaSource is listening for
+ // hls-reset to reset caption parsing state in the transmuxer
+ _this3.tech_.trigger('hls-reset');
+ });
+
+ this.mainSegmentLoader_.on('segmenttimemapping', function (event) {
+ // If playing an MTS stream in html, a videojs.MediaSource is listening for
+ // hls-segment-time-mapping update its internal mapping of stream to display time
+ _this3.tech_.trigger({
+ type: 'hls-segment-time-mapping',
+ mapping: event.mapping
+ });
+ });
+
+ this.audioSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+ }
+ }, {
+ key: 'mediaSecondsLoaded_',
+ value: function mediaSecondsLoaded_() {
+ return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
+ }
+
+ /**
+ * Call load on our SegmentLoaders
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ this.mainSegmentLoader_.load();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.load();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.load();
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions without performing destructive actions, like
+ * removing already buffered content
+ *
+ * @private
+ */
+
+ }, {
+ key: 'smoothQualityChange_',
+ value: function smoothQualityChange_() {
+ var media = this.selectPlaylist();
+
+ if (media !== this.masterPlaylistLoader_.media()) {
+ this.masterPlaylistLoader_.media(media);
+
+ this.mainSegmentLoader_.resetLoader();
+ // don't need to reset audio as it is reset when media changes
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions. This method will perform destructive actions like removing
+ * already buffered content in order to readjust the currently active
+ * playlist quickly. This is good for manual quality changes
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fastQualityChange_',
+ value: function fastQualityChange_() {
+ var _this4 = this;
+
+ var media = this.selectPlaylist();
+
+ if (media === this.masterPlaylistLoader_.media()) {
+ return;
+ }
+
+ this.masterPlaylistLoader_.media(media);
+
+ // Delete all buffered data to allow an immediate quality switch, then seek to give
+ // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
+ // ahead is roughly the minimum that will accomplish this across a variety of content
+ // in IE and Edge, but seeking in place is sufficient on all other browsers)
+ // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
+ // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
+ this.mainSegmentLoader_.resetEverything(function () {
+ // Since this is not a typical seek, we avoid the seekTo method which can cause segments
+ // from the previously enabled rendition to load before the new playlist has finished loading
+ if (videojs$1.browser.IE_VERSION || videojs$1.browser.IS_EDGE) {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime() + 0.04);
+ } else {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime());
+ }
+ });
+
+ // don't need to reset audio as it is reset when media changes
+ }
+
+ /**
+ * Begin playback.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ if (this.setupFirstPlay()) {
+ return;
+ }
+
+ if (this.tech_.ended()) {
+ this.seekTo_(0);
+ }
+
+ if (this.hasPlayed_()) {
+ this.load();
+ }
+
+ var seekable$$1 = this.tech_.seekable();
+
+ // if the viewer has paused and we fell out of the live window,
+ // seek forward to the live point
+ if (this.tech_.duration() === Infinity) {
+ if (this.tech_.currentTime() < seekable$$1.start(0)) {
+ return this.seekTo_(seekable$$1.end(seekable$$1.length - 1));
+ }
+ }
+ }
+
+ /**
+ * Seek to the latest media position if this is a live video and the
+ * player and video are loaded and initialized.
+ */
+
+ }, {
+ key: 'setupFirstPlay',
+ value: function setupFirstPlay() {
+ var _this5 = this;
+
+ var media = this.masterPlaylistLoader_.media();
+
+ // Check that everything is ready to begin buffering for the first call to play
+ // If 1) there is no active media
+ // 2) the player is paused
+ // 3) the first play has already been setup
+ // then exit early
+ if (!media || this.tech_.paused() || this.hasPlayed_()) {
+ return false;
+ }
+
+ // when the video is a live stream
+ if (!media.endList) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // without a seekable range, the player cannot seek to begin buffering at the live
+ // point
+ return false;
+ }
+
+ if (videojs$1.browser.IE_VERSION && this.tech_.readyState() === 0) {
+ // IE11 throws an InvalidStateError if you try to set currentTime while the
+ // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
+ this.tech_.one('loadedmetadata', function () {
+ _this5.trigger('firstplay');
+ _this5.seekTo_(seekable$$1.end(0));
+ _this5.hasPlayed_ = function () {
+ return true;
+ };
+ });
+
+ return false;
+ }
+
+ // trigger firstplay to inform the source handler to ignore the next seek event
+ this.trigger('firstplay');
+ // seek to the live point
+ this.seekTo_(seekable$$1.end(0));
+ }
+
+ this.hasPlayed_ = function () {
+ return true;
+ };
+ // we can begin loading now that everything is ready
+ this.load();
+ return true;
+ }
+
+ /**
+ * handle the sourceopen event on the MediaSource
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSourceOpen_',
+ value: function handleSourceOpen_() {
+ // Only attempt to create the source buffer if none already exist.
+ // handleSourceOpen is also called when we are "re-opening" a source buffer
+ // after `endOfStream` has been called (in response to a seek for instance)
+ try {
+ this.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create Source Buffers', e);
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ // if autoplay is enabled, begin playback. This is duplicative of
+ // code in video.js but is required because play() must be invoked
+ // *after* the media source has opened.
+ if (this.tech_.autoplay()) {
+ var playPromise = this.tech_.play();
+
+ // Catch/silence error when a pause interrupts a play request
+ // on browsers which return a promise
+ if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
+ playPromise.then(null, function (e) {});
+ }
+ }
+
+ this.trigger('sourceopen');
+ }
+
+ /**
+ * Calls endOfStream on the media source when all active stream types have called
+ * endOfStream
+ *
+ * @param {string} streamType
+ * Stream type of the segment loader that called endOfStream
+ * @private
+ */
+
+ }, {
+ key: 'onEndOfStream',
+ value: function onEndOfStream() {
+ var isEndOfStream = this.mainSegmentLoader_.ended_;
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ // if the audio playlist loader exists, then alternate audio is active
+ if (!this.mainSegmentLoader_.startingMedia_ || this.mainSegmentLoader_.startingMedia_.containsVideo) {
+ // if we do not know if the main segment loader contains video yet or if we
+ // definitively know the main segment loader contains video, then we need to wait
+ // for both main and audio segment loaders to call endOfStream
+ isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
+ } else {
+ // otherwise just rely on the audio loader
+ isEndOfStream = this.audioSegmentLoader_.ended_;
+ }
+ }
+
+ if (isEndOfStream) {
+ this.mediaSource.endOfStream();
+ }
+ }
+
+ /**
+ * Check if a playlist has stopped being updated
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist has stopped being updated or not
+ */
+
+ }, {
+ key: 'stuckAtPlaylistEnd_',
+ value: function stuckAtPlaylistEnd_(playlist) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // playlist doesn't have enough information to determine whether we are stuck
+ return false;
+ }
+
+ var expired = this.syncController_.getExpiredTime(playlist, this.mediaSource.duration);
+
+ if (expired === null) {
+ return false;
+ }
+
+ // does not use the safe live end to calculate playlist end, since we
+ // don't want to say we are stuck while there is still content
+ var absolutePlaylistEnd = Hls.Playlist.playlistEnd(playlist, expired);
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (!buffered.length) {
+ // return true if the playhead reached the absolute end of the playlist
+ return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
+ }
+ var bufferedEnd = buffered.end(buffered.length - 1);
+
+ // return true if there is too little buffer left and buffer has reached absolute
+ // end of playlist
+ return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
+ }
+
+ /**
+ * Blacklists a playlist when an error occurs for a set amount of time
+ * making it unavailable for selection by the rendition selection algorithm
+ * and then forces a new playlist (rendition) selection.
+ *
+ * @param {Object=} error an optional error that may include the playlist
+ * to blacklist
+ * @param {Number=} blacklistDuration an optional number of seconds to blacklist the
+ * playlist
+ */
+
+ }, {
+ key: 'blacklistCurrentPlaylist',
+ value: function blacklistCurrentPlaylist() {
+ var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var blacklistDuration = arguments[1];
+
+ var currentPlaylist = void 0;
+ var nextPlaylist = void 0;
+
+ // If the `error` was generated by the playlist loader, it will contain
+ // the playlist we were trying to load (but failed) and that should be
+ // blacklisted instead of the currently selected playlist which is likely
+ // out-of-date in this scenario
+ currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();
+
+ blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration;
+
+ // If there is no current playlist, then an error occurred while we were
+ // trying to load the master OR while we were disposing of the tech
+ if (!currentPlaylist) {
+ this.error = error;
+
+ try {
+ return this.mediaSource.endOfStream('network');
+ } catch (e) {
+ return this.trigger('error');
+ }
+ }
+
+ var isFinalRendition = this.masterPlaylistLoader_.master.playlists.filter(isEnabled).length === 1;
+
+ if (isFinalRendition) {
+ // Never blacklisting this playlist because it's final rendition
+ videojs$1.log.warn('Problem encountered with the current ' + 'HLS playlist. Trying again since it is the final playlist.');
+
+ this.tech_.trigger('retryplaylist');
+ return this.masterPlaylistLoader_.load(isFinalRendition);
+ }
+ // Blacklist this playlist
+ currentPlaylist.excludeUntil = Date.now() + blacklistDuration * 1000;
+ this.tech_.trigger('blacklistplaylist');
+ this.tech_.trigger({ type: 'usage', name: 'hls-rendition-blacklisted' });
+
+ // Select a new playlist
+ nextPlaylist = this.selectPlaylist();
+ videojs$1.log.warn('Problem encountered with the current HLS playlist.' + (error.message ? ' ' + error.message : '') + ' Switching to another playlist.');
+
+ return this.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ /**
+ * Pause all segment loaders
+ */
+
+ }, {
+ key: 'pauseLoading',
+ value: function pauseLoading() {
+ this.mainSegmentLoader_.pause();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.pause();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.pause();
+ }
+ }
+
+ /**
+ * set the current time on all segment loaders
+ *
+ * @param {TimeRange} currentTime the current time to set
+ * @return {TimeRange} the current time
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ var buffered = findRange(this.tech_.buffered(), currentTime);
+
+ if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {
+ // return immediately if the metadata is not ready yet
+ return 0;
+ }
+
+ // it's clearly an edge-case but don't thrown an error if asked to
+ // seek within an empty playlist
+ if (!this.masterPlaylistLoader_.media().segments) {
+ return 0;
+ }
+
+ // In flash playback, the segment loaders should be reset on every seek, even
+ // in buffer seeks. If the seek location is already buffered, continue buffering as
+ // usual
+ // TODO: redo this comment
+ if (buffered && buffered.length) {
+ return currentTime;
+ }
+
+ // cancel outstanding requests so we begin buffering at the new
+ // location
+ this.mainSegmentLoader_.resetEverything();
+ this.mainSegmentLoader_.abort();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.resetEverything();
+ this.audioSegmentLoader_.abort();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.resetEverything();
+ this.subtitleSegmentLoader_.abort();
+ }
+
+ // start segment loader loading in case they are paused
+ this.load();
+ }
+
+ /**
+ * get the current duration
+ *
+ * @return {TimeRange} the duration
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ if (!this.masterPlaylistLoader_) {
+ return 0;
+ }
+
+ if (this.mediaSource) {
+ return this.mediaSource.duration;
+ }
+
+ return Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ }
+
+ /**
+ * check the seekable range
+ *
+ * @return {TimeRange} the seekable range
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.seekable_;
+ }
+ }, {
+ key: 'onSyncInfoUpdate_',
+ value: function onSyncInfoUpdate_() {
+ var mainSeekable = void 0;
+ var audioSeekable = void 0;
+
+ if (!this.masterPlaylistLoader_) {
+ return;
+ }
+
+ var media = this.masterPlaylistLoader_.media();
+
+ if (!media) {
+ return;
+ }
+
+ var expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ // not enough information to update seekable
+ return;
+ }
+
+ mainSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (mainSeekable.length === 0) {
+ return;
+ }
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
+ expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ return;
+ }
+
+ audioSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (audioSeekable.length === 0) {
+ return;
+ }
+ }
+
+ if (!audioSeekable) {
+ // seekable has been calculated based on buffering video data so it
+ // can be returned directly
+ this.seekable_ = mainSeekable;
+ } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
+ // seekables are pretty far off, rely on main
+ this.seekable_ = mainSeekable;
+ } else {
+ this.seekable_ = videojs$1.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
+ }
+
+ this.logger_('seekable updated [' + printableRange(this.seekable_) + ']');
+
+ this.tech_.trigger('seekablechanged');
+ }
+
+ /**
+ * Update the player duration
+ */
+
+ }, {
+ key: 'updateDuration',
+ value: function updateDuration() {
+ var _this6 = this;
+
+ var oldDuration = this.mediaSource.duration;
+ var newDuration = Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ var buffered = this.tech_.buffered();
+ var setDuration = function setDuration() {
+ _this6.mediaSource.duration = newDuration;
+ _this6.tech_.trigger('durationchange');
+
+ _this6.mediaSource.removeEventListener('sourceopen', setDuration);
+ };
+
+ if (buffered.length > 0) {
+ newDuration = Math.max(newDuration, buffered.end(buffered.length - 1));
+ }
+
+ // if the duration has changed, invalidate the cached value
+ if (oldDuration !== newDuration) {
+ // update the duration
+ if (this.mediaSource.readyState !== 'open') {
+ this.mediaSource.addEventListener('sourceopen', setDuration);
+ } else {
+ setDuration();
+ }
+ }
+ }
+
+ /**
+ * dispose of the MasterPlaylistController and everything
+ * that it controls
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ var _this7 = this;
+
+ this.decrypter_.terminate();
+ this.masterPlaylistLoader_.dispose();
+ this.mainSegmentLoader_.dispose();
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ var groups = _this7.mediaTypes_[type].groups;
+
+ for (var id in groups) {
+ groups[id].forEach(function (group) {
+ if (group.playlistLoader) {
+ group.playlistLoader.dispose();
+ }
+ });
+ }
+ });
+
+ this.audioSegmentLoader_.dispose();
+ this.subtitleSegmentLoader_.dispose();
+ }
+
+ /**
+ * return the master playlist object if we have one
+ *
+ * @return {Object} the master playlist object that we parsed
+ */
+
+ }, {
+ key: 'master',
+ value: function master() {
+ return this.masterPlaylistLoader_.master;
+ }
+
+ /**
+ * return the currently selected playlist
+ *
+ * @return {Object} the currently selected playlist object that we parsed
+ */
+
+ }, {
+ key: 'media',
+ value: function media() {
+ // playlist loader will not return media if it has not been fully loaded
+ return this.masterPlaylistLoader_.media() || this.initialMedia_;
+ }
+
+ /**
+ * setup our internal source buffers on our segment Loaders
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSourceBuffers_',
+ value: function setupSourceBuffers_() {
+ var media = this.masterPlaylistLoader_.media();
+ var mimeTypes = void 0;
+
+ // wait until a media playlist is available and the Media Source is
+ // attached
+ if (!media || this.mediaSource.readyState !== 'open') {
+ return;
+ }
+
+ mimeTypes = mimeTypesForPlaylist(this.masterPlaylistLoader_.master, media);
+ if (mimeTypes.length < 1) {
+ this.error = 'No compatible SourceBuffer configuration for the variant stream:' + media.resolvedUri;
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ this.configureLoaderMimeTypes_(mimeTypes);
+ // exclude any incompatible variant streams from future playlist
+ // selection
+ this.excludeIncompatibleVariants_(media);
+ }
+ }, {
+ key: 'configureLoaderMimeTypes_',
+ value: function configureLoaderMimeTypes_(mimeTypes) {
+ // If the content is demuxed, we can't start appending segments to a source buffer
+ // until both source buffers are set up, or else the browser may not let us add the
+ // second source buffer (it will assume we are playing either audio only or video
+ // only).
+ var sourceBufferEmitter =
+ // If there is more than one mime type
+ mimeTypes.length > 1 &&
+ // and the first mime type does not have muxed video and audio
+ mimeTypes[0].indexOf(',') === -1 &&
+ // and the two mime types are different (they can be the same in the case of audio
+ // only with alternate audio)
+ mimeTypes[0] !== mimeTypes[1] ?
+ // then we want to wait on the second source buffer
+ new videojs$1.EventTarget() :
+ // otherwise there is no need to wait as the content is either audio only,
+ // video only, or muxed content.
+ null;
+
+ this.mainSegmentLoader_.mimeType(mimeTypes[0], sourceBufferEmitter);
+ if (mimeTypes[1]) {
+ this.audioSegmentLoader_.mimeType(mimeTypes[1], sourceBufferEmitter);
+ }
+ }
+
+ /**
+ * Blacklists playlists with codecs that are unsupported by the browser.
+ */
+
+ }, {
+ key: 'excludeUnsupportedVariants_',
+ value: function excludeUnsupportedVariants_() {
+ this.master().playlists.forEach(function (variant) {
+ if (variant.attributes.CODECS && window$1.MediaSource && window$1.MediaSource.isTypeSupported && !window$1.MediaSource.isTypeSupported('video/mp4; codecs="' + mapLegacyAvcCodecs(variant.attributes.CODECS) + '"')) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+
+ /**
+ * Blacklist playlists that are known to be codec or
+ * stream-incompatible with the SourceBuffer configuration. For
+ * instance, Media Source Extensions would cause the video element to
+ * stall waiting for video data if you switched from a variant with
+ * video and audio to an audio-only one.
+ *
+ * @param {Object} media a media playlist compatible with the current
+ * set of SourceBuffers. Variants in the current master playlist that
+ * do not appear to have compatible codec or stream configurations
+ * will be excluded from the default playlist selection algorithm
+ * indefinitely.
+ * @private
+ */
+
+ }, {
+ key: 'excludeIncompatibleVariants_',
+ value: function excludeIncompatibleVariants_(media) {
+ var codecCount = 2;
+ var videoCodec = null;
+ var codecs = void 0;
+
+ if (media.attributes.CODECS) {
+ codecs = parseCodecs(media.attributes.CODECS);
+ videoCodec = codecs.videoCodec;
+ codecCount = codecs.codecCount;
+ }
+
+ this.master().playlists.forEach(function (variant) {
+ var variantCodecs = {
+ codecCount: 2,
+ videoCodec: null
+ };
+
+ if (variant.attributes.CODECS) {
+ variantCodecs = parseCodecs(variant.attributes.CODECS);
+ }
+
+ // if the streams differ in the presence or absence of audio or
+ // video, they are incompatible
+ if (variantCodecs.codecCount !== codecCount) {
+ variant.excludeUntil = Infinity;
+ }
+
+ // if h.264 is specified on the current playlist, some flavor of
+ // it must be specified on all compatible variants
+ if (variantCodecs.videoCodec !== videoCodec) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+ }, {
+ key: 'updateAdCues_',
+ value: function updateAdCues_(media) {
+ var offset = 0;
+ var seekable$$1 = this.seekable();
+
+ if (seekable$$1.length) {
+ offset = seekable$$1.start(0);
+ }
+
+ updateAdCues(media, this.cueTagsTrack_, offset);
+ }
+
+ /**
+ * Calculates the desired forward buffer length based on current time
+ *
+ * @return {Number} Desired forward buffer length in seconds
+ */
+
+ }, {
+ key: 'goalBufferLength',
+ value: function goalBufferLength() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.GOAL_BUFFER_LENGTH;
+ var rate = Config.GOAL_BUFFER_LENGTH_RATE;
+ var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+
+ /**
+ * Calculates the desired buffer low water line based on current time
+ *
+ * @return {Number} Desired buffer low water line in seconds
+ */
+
+ }, {
+ key: 'bufferLowWaterLine',
+ value: function bufferLowWaterLine() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.BUFFER_LOW_WATER_LINE;
+ var rate = Config.BUFFER_LOW_WATER_LINE_RATE;
+ var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+ }]);
+ return MasterPlaylistController;
+}(videojs$1.EventTarget);
+
+/**
+ * Returns a function that acts as the Enable/disable playlist function.
+ *
+ * @param {PlaylistLoader} loader - The master playlist loader
+ * @param {String} playlistUri - uri of the playlist
+ * @param {Function} changePlaylistFn - A function to be called after a
+ * playlist's enabled-state has been changed. Will NOT be called if a
+ * playlist's enabled-state is unchanged
+ * @param {Boolean=} enable - Value to set the playlist enabled-state to
+ * or if undefined returns the current enabled-state for the playlist
+ * @return {Function} Function for setting/getting enabled
+ */
+var enableFunction = function enableFunction(loader, playlistUri, changePlaylistFn) {
+ return function (enable) {
+ var playlist = loader.master.playlists[playlistUri];
+ var incompatible = isIncompatible(playlist);
+ var currentlyEnabled = isEnabled(playlist);
+
+ if (typeof enable === 'undefined') {
+ return currentlyEnabled;
+ }
+
+ if (enable) {
+ delete playlist.disabled;
+ } else {
+ playlist.disabled = true;
+ }
+
+ if (enable !== currentlyEnabled && !incompatible) {
+ // Ensure the outside world knows about our changes
+ changePlaylistFn();
+ if (enable) {
+ loader.trigger('renditionenabled');
+ } else {
+ loader.trigger('renditiondisabled');
+ }
+ }
+ return enable;
+ };
+};
+
+/**
+ * The representation object encapsulates the publicly visible information
+ * in a media playlist along with a setter/getter-type function (enabled)
+ * for changing the enabled-state of a particular playlist entry
+ *
+ * @class Representation
+ */
+
+var Representation = function Representation(hlsHandler, playlist, id) {
+ classCallCheck$1(this, Representation);
+
+ // Get a reference to a bound version of fastQualityChange_
+ var fastChangeFunction = hlsHandler.masterPlaylistController_.fastQualityChange_.bind(hlsHandler.masterPlaylistController_);
+
+ // some playlist attributes are optional
+ if (playlist.attributes.RESOLUTION) {
+ var resolution = playlist.attributes.RESOLUTION;
+
+ this.width = resolution.width;
+ this.height = resolution.height;
+ }
+
+ this.bandwidth = playlist.attributes.BANDWIDTH;
+
+ // The id is simply the ordinality of the media playlist
+ // within the master playlist
+ this.id = id;
+
+ // Partially-apply the enableFunction to create a playlist-
+ // specific variant
+ this.enabled = enableFunction(hlsHandler.playlists, playlist.uri, fastChangeFunction);
+};
+
+/**
+ * A mixin function that adds the `representations` api to an instance
+ * of the HlsHandler class
+ * @param {HlsHandler} hlsHandler - An instance of HlsHandler to add the
+ * representation API into
+ */
+
+var renditionSelectionMixin = function renditionSelectionMixin(hlsHandler) {
+ var playlists = hlsHandler.playlists;
+
+ // Add a single API-specific function to the HlsHandler instance
+ hlsHandler.representations = function () {
+ return playlists.master.playlists.filter(function (media) {
+ return !isIncompatible(media);
+ }).map(function (e, i) {
+ return new Representation(hlsHandler, e, e.uri);
+ });
+ };
+};
+
+/**
+ * @file playback-watcher.js
+ *
+ * Playback starts, and now my watch begins. It shall not end until my death. I shall
+ * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
+ * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
+ * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
+ * my life and honor to the Playback Watch, for this Player and all the Players to come.
+ */
+
+// Set of events that reset the playback-watcher time check logic and clear the timeout
+var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
+
+/**
+ * @class PlaybackWatcher
+ */
+
+var PlaybackWatcher = function () {
+ /**
+ * Represents an PlaybackWatcher object.
+ * @constructor
+ * @param {object} options an object that includes the tech and settings
+ */
+ function PlaybackWatcher(options) {
+ var _this = this;
+
+ classCallCheck$1(this, PlaybackWatcher);
+
+ this.tech_ = options.tech;
+ this.seekable = options.seekable;
+ this.seekTo = options.seekTo;
+
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = null;
+ this.timer_ = null;
+ this.checkCurrentTimeTimeout_ = null;
+ this.logger_ = logger('PlaybackWatcher');
+
+ this.logger_('initialize');
+
+ var canPlayHandler = function canPlayHandler() {
+ return _this.monitorCurrentTime_();
+ };
+ var waitingHandler = function waitingHandler() {
+ return _this.techWaiting_();
+ };
+ var cancelTimerHandler = function cancelTimerHandler() {
+ return _this.cancelTimer_();
+ };
+ var fixesBadSeeksHandler = function fixesBadSeeksHandler() {
+ return _this.fixesBadSeeks_();
+ };
+
+ this.tech_.on('seekablechanged', fixesBadSeeksHandler);
+ this.tech_.on('waiting', waitingHandler);
+ this.tech_.on(timerCancelEvents, cancelTimerHandler);
+ this.tech_.on('canplay', canPlayHandler);
+
+ // Define the dispose function to clean up our events
+ this.dispose = function () {
+ _this.logger_('dispose');
+ _this.tech_.off('seekablechanged', fixesBadSeeksHandler);
+ _this.tech_.off('waiting', waitingHandler);
+ _this.tech_.off(timerCancelEvents, cancelTimerHandler);
+ _this.tech_.off('canplay', canPlayHandler);
+ if (_this.checkCurrentTimeTimeout_) {
+ window$1.clearTimeout(_this.checkCurrentTimeTimeout_);
+ }
+ _this.cancelTimer_();
+ };
+ }
+
+ /**
+ * Periodically check current time to see if playback stopped
+ *
+ * @private
+ */
+
+ createClass$1(PlaybackWatcher, [{
+ key: 'monitorCurrentTime_',
+ value: function monitorCurrentTime_() {
+ this.checkCurrentTime_();
+
+ if (this.checkCurrentTimeTimeout_) {
+ window$1.clearTimeout(this.checkCurrentTimeTimeout_);
+ }
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ this.checkCurrentTimeTimeout_ = window$1.setTimeout(this.monitorCurrentTime_.bind(this), 250);
+ }
+
+ /**
+ * The purpose of this function is to emulate the "waiting" event on
+ * browsers that do not emit it when they are waiting for more
+ * data to continue playback
+ *
+ * @private
+ */
+
+ }, {
+ key: 'checkCurrentTime_',
+ value: function checkCurrentTime_() {
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = this.tech_.currentTime();
+ return;
+ }
+
+ if (this.tech_.paused() || this.tech_.seeking()) {
+ return;
+ }
+
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
+ // If current time is at the end of the final buffered region, then any playback
+ // stall is most likely caused by buffering in a low bandwidth environment. The tech
+ // should fire a `waiting` event in this scenario, but due to browser and tech
+ // inconsistencies. Calling `techWaiting_` here allows us to simulate
+ // responding to a native `waiting` event when the tech fails to emit one.
+ return this.techWaiting_();
+ }
+
+ if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ this.waiting_();
+ } else if (currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ } else {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = currentTime;
+ }
+ }
+
+ /**
+ * Cancels any pending timers and resets the 'timeupdate' mechanism
+ * designed to detect that we are stalled
+ *
+ * @private
+ */
+
+ }, {
+ key: 'cancelTimer_',
+ value: function cancelTimer_() {
+ this.consecutiveUpdates = 0;
+
+ if (this.timer_) {
+ this.logger_('cancelTimer_');
+ clearTimeout(this.timer_);
+ }
+
+ this.timer_ = null;
+ }
+
+ /**
+ * Fixes situations where there's a bad seek
+ *
+ * @return {Boolean} whether an action was taken to fix the seek
+ * @private
+ */
+
+ }, {
+ key: 'fixesBadSeeks_',
+ value: function fixesBadSeeks_() {
+ var seeking = this.tech_.seeking();
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+ var seekTo = void 0;
+
+ if (seeking && this.afterSeekableWindow_(seekable, currentTime)) {
+ var seekableEnd = seekable.end(seekable.length - 1);
+
+ // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
+ seekTo = seekableEnd;
+ }
+
+ if (seeking && this.beforeSeekableWindow_(seekable, currentTime)) {
+ var seekableStart = seekable.start(0);
+
+ // sync to the beginning of the live window
+ // provide a buffer of .1 seconds to handle rounding/imprecise numbers
+ seekTo = seekableStart + SAFE_TIME_DELTA;
+ }
+
+ if (typeof seekTo !== 'undefined') {
+ this.logger_('Trying to seek outside of seekable at time ' + currentTime + ' with ' + ('seekable range ' + printableRange(seekable) + '. Seeking to ') + (seekTo + '.'));
+
+ this.seekTo(seekTo);
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Handler for situations when we determine the player is waiting.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'waiting_',
+ value: function waiting_() {
+ if (this.techWaiting_()) {
+ return;
+ }
+
+ // All tech waiting checks failed. Use last resort correction
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+ var currentRange = findRange(buffered, currentTime);
+
+ // Sometimes the player can stall for unknown reasons within a contiguous buffered
+ // region with no indication that anything is amiss (seen in Firefox). Seeking to
+ // currentTime is usually enough to kickstart the player. This checks that the player
+ // is currently within a buffered region before attempting a corrective seek.
+ // Chrome does not appear to continue `timeupdate` events after a `waiting` event
+ // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
+ // make sure there is ~3 seconds of forward buffer before taking any corrective action
+ // to avoid triggering an `unknownwaiting` event when the network is slow.
+ if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ this.logger_('Stopped at ' + currentTime + ' while inside a buffered region ' + ('[' + currentRange.start(0) + ' -> ' + currentRange.end(0) + ']. Attempting to resume ') + 'playback by seeking to the current time.');
+
+ // unknown waiting corrections may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-unknown-waiting' });
+ return;
+ }
+ }
+
+ /**
+ * Handler for situations when the tech fires a `waiting` event
+ *
+ * @return {Boolean}
+ * True if an action (or none) was needed to correct the waiting. False if no
+ * checks passed
+ * @private
+ */
+
+ }, {
+ key: 'techWaiting_',
+ value: function techWaiting_() {
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ // Tech is seeking or bad seek fixed, no action needed
+ return true;
+ }
+
+ if (this.tech_.seeking() || this.timer_ !== null) {
+ // Tech is seeking or already waiting on another action, no action needed
+ return true;
+ }
+
+ if (this.beforeSeekableWindow_(seekable, currentTime)) {
+ var livePoint = seekable.end(seekable.length - 1);
+
+ this.logger_('Fell out of live window at time ' + currentTime + '. Seeking to ' + ('live point (seekable end) ' + livePoint));
+ this.cancelTimer_();
+ this.seekTo(livePoint);
+
+ // live window resyncs may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-live-resync' });
+ return true;
+ }
+
+ var buffered = this.tech_.buffered();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ if (this.videoUnderflow_(nextRange, buffered, currentTime)) {
+ // Even though the video underflowed and was stuck in a gap, the audio overplayed
+ // the gap, leading currentTime into a buffered range. Seeking to currentTime
+ // allows the video to catch up to the audio position without losing any audio
+ // (only suffering ~3 seconds of frozen video and a pause in audio playback).
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ // video underflow may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-video-underflow' });
+ return true;
+ }
+
+ // check for gap
+ if (nextRange.length > 0) {
+ var difference = nextRange.start(0) - currentTime;
+
+ this.logger_('Stopped at ' + currentTime + ', setting timer for ' + difference + ', seeking ' + ('to ' + nextRange.start(0)));
+
+ this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);
+ return true;
+ }
+
+ // All checks failed. Returning false to indicate failure to correct waiting
+ return false;
+ }
+ }, {
+ key: 'afterSeekableWindow_',
+ value: function afterSeekableWindow_(seekable, currentTime) {
+ if (!seekable.length) {
+ // we can't make a solid case if there's no seekable, default to false
+ return false;
+ }
+
+ if (currentTime > seekable.end(seekable.length - 1) + SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'beforeSeekableWindow_',
+ value: function beforeSeekableWindow_(seekable, currentTime) {
+ if (seekable.length &&
+ // can't fall before 0 and 0 seekable start identifies VOD stream
+ seekable.start(0) > 0 && currentTime < seekable.start(0) - SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'videoUnderflow_',
+ value: function videoUnderflow_(nextRange, buffered, currentTime) {
+ if (nextRange.length === 0) {
+ // Even if there is no available next range, there is still a possibility we are
+ // stuck in a gap due to video underflow.
+ var gap = this.gapFromVideoUnderflow_(buffered, currentTime);
+
+ if (gap) {
+ this.logger_('Encountered a gap in video from ' + gap.start + ' to ' + gap.end + '. ' + ('Seeking to current time ' + currentTime));
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Timer callback. If playback still has not proceeded, then we seek
+ * to the start of the next buffered region.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'skipTheGap_',
+ value: function skipTheGap_(scheduledCurrentTime) {
+ var buffered = this.tech_.buffered();
+ var currentTime = this.tech_.currentTime();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ this.cancelTimer_();
+
+ if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
+ return;
+ }
+
+ this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0));
+
+ // only seek if we still have not played
+ this.seekTo(nextRange.start(0) + TIME_FUDGE_FACTOR);
+
+ this.tech_.trigger({ type: 'usage', name: 'hls-gap-skip' });
+ }
+ }, {
+ key: 'gapFromVideoUnderflow_',
+ value: function gapFromVideoUnderflow_(buffered, currentTime) {
+ // At least in Chrome, if there is a gap in the video buffer, the audio will continue
+ // playing for ~3 seconds after the video gap starts. This is done to account for
+ // video buffer underflow/underrun (note that this is not done when there is audio
+ // buffer underflow/underrun -- in that case the video will stop as soon as it
+ // encounters the gap, as audio stalls are more noticeable/jarring to a user than
+ // video stalls). The player's time will reflect the playthrough of audio, so the
+ // time will appear as if we are in a buffered region, even if we are stuck in a
+ // "gap."
+ //
+ // Example:
+ // video buffer: 0 => 10.1, 10.2 => 20
+ // audio buffer: 0 => 20
+ // overall buffer: 0 => 10.1, 10.2 => 20
+ // current time: 13
+ //
+ // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
+ // however, the audio continued playing until it reached ~3 seconds past the gap
+ // (13 seconds), at which point it stops as well. Since current time is past the
+ // gap, findNextRange will return no ranges.
+ //
+ // To check for this issue, we see if there is a gap that starts somewhere within
+ // a 3 second range (3 seconds +/- 1 second) back from our current time.
+ var gaps = findGaps(buffered);
+
+ for (var i = 0; i < gaps.length; i++) {
+ var start = gaps.start(i);
+ var end = gaps.end(i);
+
+ // gap is starts no more than 4 seconds back
+ if (currentTime - start < 4 && currentTime - start > 2) {
+ return {
+ start: start,
+ end: end
+ };
+ }
+ }
+
+ return null;
+ }
+ }]);
+ return PlaybackWatcher;
+}();
+
+var defaultOptions = {
+ errorInterval: 30,
+ getSource: function getSource(next) {
+ var tech = this.tech({ IWillNotUseThisInPlugins: true });
+ var sourceObj = tech.currentSource_;
+
+ return next(sourceObj);
+ }
+};
+
+/**
+ * Main entry point for the plugin
+ *
+ * @param {Player} player a reference to a videojs Player instance
+ * @param {Object} [options] an object with plugin options
+ * @private
+ */
+var initPlugin = function initPlugin(player, options) {
+ var lastCalled = 0;
+ var seekTo = 0;
+ var localOptions = videojs$1.mergeOptions(defaultOptions, options);
+
+ player.ready(function () {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-initialized' });
+ });
+
+ /**
+ * Player modifications to perform that must wait until `loadedmetadata`
+ * has been triggered
+ *
+ * @private
+ */
+ var loadedMetadataHandler = function loadedMetadataHandler() {
+ if (seekTo) {
+ player.currentTime(seekTo);
+ }
+ };
+
+ /**
+ * Set the source on the player element, play, and seek if necessary
+ *
+ * @param {Object} sourceObj An object specifying the source url and mime-type to play
+ * @private
+ */
+ var setSource = function setSource(sourceObj) {
+ if (sourceObj === null || sourceObj === undefined) {
+ return;
+ }
+ seekTo = player.duration() !== Infinity && player.currentTime() || 0;
+
+ player.one('loadedmetadata', loadedMetadataHandler);
+
+ player.src(sourceObj);
+ player.trigger({ type: 'usage', name: 'hls-error-reload' });
+ player.play();
+ };
+
+ /**
+ * Attempt to get a source from either the built-in getSource function
+ * or a custom function provided via the options
+ *
+ * @private
+ */
+ var errorHandler = function errorHandler() {
+ // Do not attempt to reload the source if a source-reload occurred before
+ // 'errorInterval' time has elapsed since the last source-reload
+ if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-canceled' });
+ return;
+ }
+
+ if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
+ videojs$1.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
+ return;
+ }
+ lastCalled = Date.now();
+
+ return localOptions.getSource.call(player, setSource);
+ };
+
+ /**
+ * Unbind any event handlers that were bound by the plugin
+ *
+ * @private
+ */
+ var cleanupEvents = function cleanupEvents() {
+ player.off('loadedmetadata', loadedMetadataHandler);
+ player.off('error', errorHandler);
+ player.off('dispose', cleanupEvents);
+ };
+
+ /**
+ * Cleanup before re-initializing the plugin
+ *
+ * @param {Object} [newOptions] an object with plugin options
+ * @private
+ */
+ var reinitPlugin = function reinitPlugin(newOptions) {
+ cleanupEvents();
+ initPlugin(player, newOptions);
+ };
+
+ player.on('error', errorHandler);
+ player.on('dispose', cleanupEvents);
+
+ // Overwrite the plugin function so that we can correctly cleanup before
+ // initializing the plugin
+ player.reloadSourceOnError = reinitPlugin;
+};
+
+/**
+ * Reload the source when an error is detected as long as there
+ * wasn't an error previously within the last 30 seconds
+ *
+ * @param {Object} [options] an object with plugin options
+ */
+var reloadSourceOnError = function reloadSourceOnError(options) {
+ initPlugin(this, options);
+};
+
+var version$1 = "1.2.6";
+
+// since VHS handles HLS and DASH (and in the future, more types), use * to capture all
+videojs$1.use('*', function (player) {
+ return {
+ setSource: function setSource(srcObj, next) {
+ // pass null as the first argument to indicate that the source is not rejected
+ next(null, srcObj);
+ },
+
+ // VHS needs to know when seeks happen. For external seeks (generated at the player
+ // level), this middleware will capture the action. For internal seeks (generated at
+ // the tech level), we use a wrapped function so that we can handle it on our own
+ // (specified elsewhere).
+ setCurrentTime: function setCurrentTime(time) {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(time);
+ }
+
+ return time;
+ },
+
+ // Sync VHS after play requests.
+ // This specifically handles replay where the order of actions is
+ // play, video element will seek to 0 (skipping the setCurrentTime middleware)
+ // then triggers a play event.
+ play: function play() {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(player.currentTime());
+ }
+ }
+ };
+});
+
+/**
+ * @file videojs-http-streaming.js
+ *
+ * The main file for the HLS project.
+ * License: https://github.com/videojs/videojs-http-streaming/blob/master/LICENSE
+ */
+
+var Hls$1 = {
+ PlaylistLoader: PlaylistLoader,
+ Playlist: Playlist,
+ Decrypter: Decrypter,
+ AsyncStream: AsyncStream,
+ decrypt: decrypt,
+ utils: utils,
+
+ STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
+ INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
+ comparePlaylistBandwidth: comparePlaylistBandwidth,
+ comparePlaylistResolution: comparePlaylistResolution,
+
+ xhr: xhrFactory()
+};
+
+// 0.5 MB/s
+var INITIAL_BANDWIDTH = 4194304;
+
+// Define getter/setters for config properites
+['GOAL_BUFFER_LENGTH', 'MAX_GOAL_BUFFER_LENGTH', 'GOAL_BUFFER_LENGTH_RATE', 'BUFFER_LOW_WATER_LINE', 'MAX_BUFFER_LOW_WATER_LINE', 'BUFFER_LOW_WATER_LINE_RATE', 'BANDWIDTH_VARIANCE'].forEach(function (prop) {
+ Object.defineProperty(Hls$1, prop, {
+ get: function get$$1() {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+ return Config[prop];
+ },
+ set: function set$$1(value) {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+
+ if (typeof value !== 'number' || value < 0) {
+ videojs$1.log.warn('value of Hls.' + prop + ' must be greater than or equal to 0');
+ return;
+ }
+
+ Config[prop] = value;
+ }
+ });
+});
+
+var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
+ var mpegurlRE = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
+
+ if (mpegurlRE.test(type)) {
+ return 'hls';
+ }
+
+ var dashRE = /^application\/dash\+xml/i;
+
+ if (dashRE.test(type)) {
+ return 'dash';
+ }
+
+ return null;
+};
+
+/**
+ * Updates the selectedIndex of the QualityLevelList when a mediachange happens in hls.
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
+ * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
+ * @function handleHlsMediaChange
+ */
+var handleHlsMediaChange = function handleHlsMediaChange(qualityLevels, playlistLoader) {
+ var newPlaylist = playlistLoader.media();
+ var selectedIndex = -1;
+
+ for (var i = 0; i < qualityLevels.length; i++) {
+ if (qualityLevels[i].id === newPlaylist.uri) {
+ selectedIndex = i;
+ break;
+ }
+ }
+
+ qualityLevels.selectedIndex_ = selectedIndex;
+ qualityLevels.trigger({
+ selectedIndex: selectedIndex,
+ type: 'change'
+ });
+};
+
+/**
+ * Adds quality levels to list once playlist metadata is available
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
+ * @param {Object} hls Hls object to listen to for media events.
+ * @function handleHlsLoadedMetadata
+ */
+var handleHlsLoadedMetadata = function handleHlsLoadedMetadata(qualityLevels, hls) {
+ hls.representations().forEach(function (rep) {
+ qualityLevels.addQualityLevel(rep);
+ });
+ handleHlsMediaChange(qualityLevels, hls.playlists);
+};
+
+// HLS is a source handler, not a tech. Make sure attempts to use it
+// as one do not cause exceptions.
+Hls$1.canPlaySource = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+};
+
+var emeKeySystems = function emeKeySystems(keySystemOptions, videoPlaylist, audioPlaylist) {
+ if (!keySystemOptions) {
+ return keySystemOptions;
+ }
+
+ // upsert the content types based on the selected playlist
+ var keySystemContentTypes = {};
+
+ for (var keySystem in keySystemOptions) {
+ keySystemContentTypes[keySystem] = {
+ audioContentType: 'audio/mp4; codecs="' + audioPlaylist.attributes.CODECS + '"',
+ videoContentType: 'video/mp4; codecs="' + videoPlaylist.attributes.CODECS + '"'
+ };
+
+ if (videoPlaylist.contentProtection && videoPlaylist.contentProtection[keySystem] && videoPlaylist.contentProtection[keySystem].pssh) {
+ keySystemContentTypes[keySystem].pssh = videoPlaylist.contentProtection[keySystem].pssh;
+ }
+
+ // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
+ // so we need to prevent overwriting the URL entirely
+ if (typeof keySystemOptions[keySystem] === 'string') {
+ keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
+ }
+ }
+
+ return videojs$1.mergeOptions(keySystemOptions, keySystemContentTypes);
+};
+
+var setupEmeOptions = function setupEmeOptions(hlsHandler) {
+ if (hlsHandler.options_.sourceType !== 'dash') {
+ return;
+ }
+ var player = videojs$1.players[hlsHandler.tech_.options_.playerId];
+
+ if (player.eme) {
+ var sourceOptions = emeKeySystems(hlsHandler.source_.keySystems, hlsHandler.playlists.media(), hlsHandler.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());
+
+ if (sourceOptions) {
+ player.currentSource().keySystems = sourceOptions;
+ }
+ }
+};
+
+/**
+ * Whether the browser has built-in HLS support.
+ */
+Hls$1.supportsNativeHls = function () {
+ var video = document.createElement('video');
+
+ // native HLS is definitely not supported if HTML5 video isn't
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ // HLS manifests can go by many mime-types
+ var canPlay = [
+ // Apple santioned
+ 'application/vnd.apple.mpegurl',
+ // Apple sanctioned for backwards compatibility
+ 'audio/mpegurl',
+ // Very common
+ 'audio/x-mpegurl',
+ // Very common
+ 'application/x-mpegurl',
+ // Included for completeness
+ 'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
+
+ return canPlay.some(function (canItPlay) {
+ return (/maybe|probably/i.test(video.canPlayType(canItPlay))
+ );
+ });
+}();
+
+Hls$1.supportsNativeDash = function () {
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ return (/maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'))
+ );
+}();
+
+Hls$1.supportsTypeNatively = function (type) {
+ if (type === 'hls') {
+ return Hls$1.supportsNativeHls;
+ }
+
+ if (type === 'dash') {
+ return Hls$1.supportsNativeDash;
+ }
+
+ return false;
+};
+
+/**
+ * HLS is a source handler, not a tech. Make sure attempts to use it
+ * as one do not cause exceptions.
+ */
+Hls$1.isSupported = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+};
+
+var Component$1 = videojs$1.getComponent('Component');
+
+/**
+ * The Hls Handler object, where we orchestrate all of the parts
+ * of HLS to interact with video.js
+ *
+ * @class HlsHandler
+ * @extends videojs.Component
+ * @param {Object} source the soruce object
+ * @param {Tech} tech the parent tech object
+ * @param {Object} options optional and required options
+ */
+
+var HlsHandler = function (_Component) {
+ inherits$1(HlsHandler, _Component);
+
+ function HlsHandler(source, tech, options) {
+ classCallCheck$1(this, HlsHandler);
+
+ // tech.player() is deprecated but setup a reference to HLS for
+ // backwards-compatibility
+ var _this = possibleConstructorReturn$1(this, (HlsHandler.__proto__ || Object.getPrototypeOf(HlsHandler)).call(this, tech, options.hls));
+
+ if (tech.options_ && tech.options_.playerId) {
+ var _player = videojs$1(tech.options_.playerId);
+
+ if (!_player.hasOwnProperty('hls')) {
+ Object.defineProperty(_player, 'hls', {
+ get: function get$$1() {
+ videojs$1.log.warn('player.hls is deprecated. Use player.tech().hls instead.');
+ tech.trigger({ type: 'usage', name: 'hls-player-access' });
+ return _this;
+ }
+ });
+ }
+
+ // Set up a reference to the HlsHandler from player.vhs. This allows users to start
+ // migrating from player.tech_.hls... to player.vhs... for API access. Although this
+ // isn't the most appropriate form of reference for video.js (since all APIs should
+ // be provided through core video.js), it is a common pattern for plugins, and vhs
+ // will act accordingly.
+ _player.vhs = _this;
+ // deprecated, for backwards compatibility
+ _player.dash = _this;
+ }
+
+ _this.tech_ = tech;
+ _this.source_ = source;
+ _this.stats = {};
+ _this.setOptions_();
+
+ if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
+ tech.overrideNativeAudioTracks(true);
+ tech.overrideNativeVideoTracks(true);
+ } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
+ // overriding native HLS only works if audio tracks have been emulated
+ // error early if we're misconfigured
+ throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');
+ }
+
+ // listen for fullscreenchange events for this player so that we
+ // can adjust our quality selection quickly
+ _this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {
+ var fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;
+
+ if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {
+ _this.masterPlaylistController_.smoothQualityChange_();
+ }
+ });
+ _this.on(_this.tech_, 'error', function () {
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.pauseLoading();
+ }
+ });
+
+ _this.on(_this.tech_, 'play', _this.play);
+ return _this;
+ }
+
+ createClass$1(HlsHandler, [{
+ key: 'setOptions_',
+ value: function setOptions_() {
+ var _this2 = this;
+
+ // defaults
+ this.options_.withCredentials = this.options_.withCredentials || false;
+
+ if (typeof this.options_.blacklistDuration !== 'number') {
+ this.options_.blacklistDuration = 5 * 60;
+ }
+
+ // start playlist selection at a reasonable bandwidth for
+ // broadband internet (0.5 MB/s) or mobile (0.0625 MB/s)
+ if (typeof this.options_.bandwidth !== 'number') {
+ this.options_.bandwidth = INITIAL_BANDWIDTH;
+ }
+
+ // If the bandwidth number is unchanged from the initial setting
+ // then this takes precedence over the enableLowInitialPlaylist option
+ this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === INITIAL_BANDWIDTH;
+
+ // grab options passed to player.src
+ ['withCredentials', 'bandwidth'].forEach(function (option) {
+ if (typeof _this2.source_[option] !== 'undefined') {
+ _this2.options_[option] = _this2.source_[option];
+ }
+ });
+
+ this.bandwidth = this.options_.bandwidth;
+ }
+ /**
+ * called when player.src gets called, handle a new source
+ *
+ * @param {Object} src the source object to handle
+ */
+
+ }, {
+ key: 'src',
+ value: function src(_src, type) {
+ var _this3 = this;
+
+ // do nothing if the src is falsey
+ if (!_src) {
+ return;
+ }
+ this.setOptions_();
+ // add master playlist controller options
+ this.options_.url = this.source_.src;
+ this.options_.tech = this.tech_;
+ this.options_.externHls = Hls$1;
+ this.options_.sourceType = simpleTypeFromSourceType(type);
+ // Whenever we seek internally, we should update both the tech and call our own
+ // setCurrentTime function. This is needed because "seeking" events aren't always
+ // reliable. External seeks (via the player object) are handled via middleware.
+ this.options_.seekTo = function (time) {
+ _this3.tech_.setCurrentTime(time);
+ _this3.setCurrentTime(time);
+ };
+
+ this.masterPlaylistController_ = new MasterPlaylistController(this.options_);
+ this.playbackWatcher_ = new PlaybackWatcher(videojs$1.mergeOptions(this.options_, {
+ seekable: function seekable$$1() {
+ return _this3.seekable();
+ }
+ }));
+
+ this.masterPlaylistController_.on('error', function () {
+ var player = videojs$1.players[_this3.tech_.options_.playerId];
+
+ player.error(_this3.masterPlaylistController_.error);
+ });
+
+ // `this` in selectPlaylist should be the HlsHandler for backwards
+ // compatibility with < v2
+ this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : Hls$1.STANDARD_PLAYLIST_SELECTOR.bind(this);
+
+ this.masterPlaylistController_.selectInitialPlaylist = Hls$1.INITIAL_PLAYLIST_SELECTOR.bind(this);
+
+ // re-expose some internal objects for backwards compatibility with < v2
+ this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;
+ this.mediaSource = this.masterPlaylistController_.mediaSource;
+
+ // Proxy assignment of some properties to the master playlist
+ // controller. Using a custom property for backwards compatibility
+ // with < v2
+ Object.defineProperties(this, {
+ selectPlaylist: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.selectPlaylist;
+ },
+ set: function set$$1(selectPlaylist) {
+ this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);
+ }
+ },
+ throughput: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;
+ },
+ set: function set$$1(throughput) {
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput;
+ // By setting `count` to 1 the throughput value becomes the starting value
+ // for the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;
+ }
+ },
+ bandwidth: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.bandwidth;
+ },
+ set: function set$$1(bandwidth) {
+ this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth;
+ // setting the bandwidth manually resets the throughput counter
+ // `count` is set to zero that current value of `rate` isn't included
+ // in the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput = {
+ rate: 0,
+ count: 0
+ };
+ }
+ },
+ /**
+ * `systemBandwidth` is a combination of two serial processes bit-rates. The first
+ * is the network bitrate provided by `bandwidth` and the second is the bitrate of
+ * the entire process after that - decryption, transmuxing, and appending - provided
+ * by `throughput`.
+ *
+ * Since the two process are serial, the overall system bandwidth is given by:
+ * sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+ */
+ systemBandwidth: {
+ get: function get$$1() {
+ var invBandwidth = 1 / (this.bandwidth || 1);
+ var invThroughput = void 0;
+
+ if (this.throughput > 0) {
+ invThroughput = 1 / this.throughput;
+ } else {
+ invThroughput = 0;
+ }
+
+ var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
+
+ return systemBitrate;
+ },
+ set: function set$$1() {
+ videojs$1.log.error('The "systemBandwidth" property is read-only');
+ }
+ }
+ });
+
+ Object.defineProperties(this.stats, {
+ bandwidth: {
+ get: function get$$1() {
+ return _this3.bandwidth || 0;
+ },
+ enumerable: true
+ },
+ mediaRequests: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequests_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsAborted: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsTimedout: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsErrored: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;
+ },
+ enumerable: true
+ },
+ mediaTransferDuration: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;
+ },
+ enumerable: true
+ },
+ mediaBytesTransferred: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;
+ },
+ enumerable: true
+ },
+ mediaSecondsLoaded: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;
+ },
+ enumerable: true
+ },
+ buffered: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.buffered());
+ },
+ enumerable: true
+ },
+ currentTime: {
+ get: function get$$1() {
+ return _this3.tech_.currentTime();
+ },
+ enumerable: true
+ },
+ currentSource: {
+ get: function get$$1() {
+ return _this3.tech_.currentSource_;
+ },
+ enumerable: true
+ },
+ currentTech: {
+ get: function get$$1() {
+ return _this3.tech_.name_;
+ },
+ enumerable: true
+ },
+ duration: {
+ get: function get$$1() {
+ return _this3.tech_.duration();
+ },
+ enumerable: true
+ },
+ master: {
+ get: function get$$1() {
+ return _this3.playlists.master;
+ },
+ enumerable: true
+ },
+ playerDimensions: {
+ get: function get$$1() {
+ return _this3.tech_.currentDimensions();
+ },
+ enumerable: true
+ },
+ seekable: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.seekable());
+ },
+ enumerable: true
+ },
+ timestamp: {
+ get: function get$$1() {
+ return Date.now();
+ },
+ enumerable: true
+ },
+ videoPlaybackQuality: {
+ get: function get$$1() {
+ return _this3.tech_.getVideoPlaybackQuality();
+ },
+ enumerable: true
+ }
+ });
+
+ this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ // Add the manual rendition mix-in to HlsHandler
+ renditionSelectionMixin(_this3);
+ setupEmeOptions(_this3);
+ });
+
+ // the bandwidth of the primary segment loader is our best
+ // estimate of overall bandwidth
+ this.on(this.masterPlaylistController_, 'progress', function () {
+ this.tech_.trigger('progress');
+ });
+
+ this.tech_.ready(function () {
+ return _this3.setupQualityLevels_();
+ });
+
+ // do nothing if the tech has been disposed already
+ // this can occur if someone sets the src in player.ready(), for instance
+ if (!this.tech_.el()) {
+ return;
+ }
+
+ this.tech_.src(videojs$1.URL.createObjectURL(this.masterPlaylistController_.mediaSource));
+ }
+
+ /**
+ * Initializes the quality levels and sets listeners to update them.
+ *
+ * @method setupQualityLevels_
+ * @private
+ */
+
+ }, {
+ key: 'setupQualityLevels_',
+ value: function setupQualityLevels_() {
+ var _this4 = this;
+
+ var player = videojs$1.players[this.tech_.options_.playerId];
+
+ if (player && player.qualityLevels) {
+ this.qualityLevels_ = player.qualityLevels();
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ handleHlsLoadedMetadata(_this4.qualityLevels_, _this4);
+ });
+
+ this.playlists.on('mediachange', function () {
+ handleHlsMediaChange(_this4.qualityLevels_, _this4.playlists);
+ });
+ }
+ }
+
+ /**
+ * Begin playing the video.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ this.masterPlaylistController_.play();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ this.masterPlaylistController_.setCurrentTime(currentTime);
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ return this.masterPlaylistController_.duration();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.masterPlaylistController_.seekable();
+ }
+
+ /**
+ * Abort all outstanding work and cleanup.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ if (this.playbackWatcher_) {
+ this.playbackWatcher_.dispose();
+ }
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.dispose();
+ }
+ if (this.qualityLevels_) {
+ this.qualityLevels_.dispose();
+ }
+ get$2(HlsHandler.prototype.__proto__ || Object.getPrototypeOf(HlsHandler.prototype), 'dispose', this).call(this);
+ }
+ }]);
+ return HlsHandler;
+}(Component$1);
+
+/**
+ * The Source Handler object, which informs video.js what additional
+ * MIME types are supported and sets up playback. It is registered
+ * automatically to the appropriate tech based on the capabilities of
+ * the browser it is running in. It is not necessary to use or modify
+ * this object in normal usage.
+ */
+
+var HlsSourceHandler = {
+ name: 'videojs-http-streaming',
+ VERSION: version$1,
+ canHandleSource: function canHandleSource(srcObj) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ return HlsSourceHandler.canPlayType(srcObj.type, localOptions);
+ },
+ handleSource: function handleSource(source, tech) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ tech.hls = new HlsHandler(source, tech, localOptions);
+ tech.hls.xhr = xhrFactory();
+
+ tech.hls.src(source.src, source.type);
+ return tech.hls;
+ },
+ canPlayType: function canPlayType(type) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var _videojs$mergeOptions = videojs$1.mergeOptions(videojs$1.options, options),
+ overrideNative = _videojs$mergeOptions.hls.overrideNative;
+
+ var supportedType = simpleTypeFromSourceType(type);
+ var canUseMsePlayback = supportedType && (!Hls$1.supportsTypeNatively(supportedType) || overrideNative);
+
+ return canUseMsePlayback ? 'maybe' : '';
+ }
+};
+
+if (typeof videojs$1.MediaSource === 'undefined' || typeof videojs$1.URL === 'undefined') {
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+}
+
+// register source handlers with the appropriate techs
+if (MediaSource.supportsNativeMediaSources()) {
+ videojs$1.getTech('Html5').registerSourceHandler(HlsSourceHandler, 0);
+}
+
+videojs$1.HlsHandler = HlsHandler;
+videojs$1.HlsSourceHandler = HlsSourceHandler;
+videojs$1.Hls = Hls$1;
+if (!videojs$1.use) {
+ videojs$1.registerComponent('Hls', Hls$1);
+}
+videojs$1.options.hls = videojs$1.options.hls || {};
+
+if (videojs$1.registerPlugin) {
+ videojs$1.registerPlugin('reloadSourceOnError', reloadSourceOnError);
+} else {
+ videojs$1.plugin('reloadSourceOnError', reloadSourceOnError);
+}
+
+export default videojs$1;
diff --git a/assets/netcut/lib/videojs/video.js b/assets/netcut/lib/videojs/video.js
new file mode 100644
index 0000000..dd05932
--- /dev/null
+++ b/assets/netcut/lib/videojs/video.js
@@ -0,0 +1,56159 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global.videojs = factory());
+}(this, (function () {
+ var version = "7.2.4";
+
+ var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+ function createCommonjsModule(fn, module) {
+ return module = { exports: {} }, fn(module, module.exports), module.exports;
+ }
+
+ var win;
+
+ if (typeof window !== "undefined") {
+ win = window;
+ } else if (typeof commonjsGlobal !== "undefined") {
+ win = commonjsGlobal;
+ } else if (typeof self !== "undefined") {
+ win = self;
+ } else {
+ win = {};
+ }
+
+ var window_1 = win;
+
+ var empty = {};
+
+ var empty$1 = /*#__PURE__*/Object.freeze({
+ default: empty
+ });
+
+ var minDoc = ( empty$1 && empty ) || empty$1;
+
+ var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
+
+ var doccy;
+
+ if (typeof document !== 'undefined') {
+ doccy = document;
+ } else {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
+
+ if (!doccy) {
+ doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
+ }
+ }
+
+ var document_1 = doccy;
+
+ /**
+ * @file log.js
+ * @module log
+ */
+
+ var log = void 0;
+
+ // This is the private tracking variable for logging level.
+ var level = 'info';
+
+ // This is the private tracking variable for the logging history.
+ var history = [];
+
+ /**
+ * Log messages to the console and history based on the type of message
+ *
+ * @private
+ * @param {string} type
+ * The name of the console method to use.
+ *
+ * @param {Array} args
+ * The arguments to be passed to the matching console method.
+ */
+ var logByType = function logByType(type, args) {
+ var lvl = log.levels[level];
+ var lvlRegExp = new RegExp('^(' + lvl + ')$');
+
+ if (type !== 'log') {
+
+ // Add the type to the front of the message when it's not "log".
+ args.unshift(type.toUpperCase() + ':');
+ }
+
+ // Add a clone of the args at this point to history.
+ if (history) {
+ history.push([].concat(args));
+ }
+
+ // Add console prefix after adding to history.
+ args.unshift('VIDEOJS:');
+
+ // If there's no console then don't try to output messages, but they will
+ // still be stored in history.
+ if (!window_1.console) {
+ return;
+ }
+
+ // Was setting these once outside of this function, but containing them
+ // in the function makes it easier to test cases where console doesn't exist
+ // when the module is executed.
+ var fn = window_1.console[type];
+
+ if (!fn && type === 'debug') {
+ // Certain browsers don't have support for console.debug. For those, we
+ // should default to the closest comparable log.
+ fn = window_1.console.info || window_1.console.log;
+ }
+
+ // Bail out if there's no console or if this type is not allowed by the
+ // current logging level.
+ if (!fn || !lvl || !lvlRegExp.test(type)) {
+ return;
+ }
+
+ fn[Array.isArray(args) ? 'apply' : 'call'](window_1.console, args);
+ };
+
+ /**
+ * Logs plain debug messages. Similar to `console.log`.
+ *
+ * @class
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged.
+ */
+ log = function log() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ logByType('log', args);
+ };
+
+ /**
+ * Enumeration of available logging levels, where the keys are the level names
+ * and the values are `|`-separated strings containing logging methods allowed
+ * in that logging level. These strings are used to create a regular expression
+ * matching the function name being called.
+ *
+ * Levels provided by video.js are:
+ *
+ * - `off`: Matches no calls. Any value that can be cast to `false` will have
+ * this effect. The most restrictive.
+ * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+ * `log.warn`, and `log.error`).
+ * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+ * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+ * - `warn`: Matches `log.warn` and `log.error` calls.
+ * - `error`: Matches only `log.error` calls.
+ *
+ * @type {Object}
+ */
+ log.levels = {
+ all: 'debug|log|warn|error',
+ off: '',
+ debug: 'debug|log|warn|error',
+ info: 'log|warn|error',
+ warn: 'warn|error',
+ error: 'error',
+ DEFAULT: level
+ };
+
+ /**
+ * Get or set the current logging level. If a string matching a key from
+ * {@link log.levels} is provided, acts as a setter. Regardless of argument,
+ * returns the current logging level.
+ *
+ * @param {string} [lvl]
+ * Pass to set a new logging level.
+ *
+ * @return {string}
+ * The current logging level.
+ */
+ log.level = function (lvl) {
+ if (typeof lvl === 'string') {
+ if (!log.levels.hasOwnProperty(lvl)) {
+ throw new Error('"' + lvl + '" in not a valid log level');
+ }
+ level = lvl;
+ }
+ return level;
+ };
+
+ /**
+ * Returns an array containing everything that has been logged to the history.
+ *
+ * This array is a shallow clone of the internal history record. However, its
+ * contents are _not_ cloned; so, mutating objects inside this array will
+ * mutate them in history.
+ *
+ * @return {Array}
+ */
+ log.history = function () {
+ return history ? [].concat(history) : [];
+ };
+
+ /**
+ * Clears the internal history tracking, but does not prevent further history
+ * tracking.
+ */
+ log.history.clear = function () {
+ if (history) {
+ history.length = 0;
+ }
+ };
+
+ /**
+ * Disable history tracking if it is currently enabled.
+ */
+ log.history.disable = function () {
+ if (history !== null) {
+ history.length = 0;
+ history = null;
+ }
+ };
+
+ /**
+ * Enable history tracking if it is currently disabled.
+ */
+ log.history.enable = function () {
+ if (history === null) {
+ history = [];
+ }
+ };
+
+ /**
+ * Logs error messages. Similar to `console.error`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as an error
+ */
+ log.error = function () {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ return logByType('error', args);
+ };
+
+ /**
+ * Logs warning messages. Similar to `console.warn`.
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as a warning.
+ */
+ log.warn = function () {
+ for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ args[_key3] = arguments[_key3];
+ }
+
+ return logByType('warn', args);
+ };
+
+ /**
+ * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+ * log if `console.debug` is not available
+ *
+ * @param {Mixed[]} args
+ * One or more messages or objects that should be logged as debug.
+ */
+ log.debug = function () {
+ for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+ args[_key4] = arguments[_key4];
+ }
+
+ return logByType('debug', args);
+ };
+
+ var log$1 = log;
+
+ function clean(s) {
+ return s.replace(/\n\r?\s*/g, '');
+ }
+
+ var tsml = function tsml(sa) {
+ var s = '',
+ i = 0;
+
+ for (; i < arguments.length; i++) {
+ s += clean(sa[i]) + (arguments[i + 1] || '');
+ }return s;
+ };
+
+ var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+ return typeof obj;
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+ };
+
+ var classCallCheck = function (instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var inherits = function (subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn = function (self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && (typeof call === "object" || typeof call === "function") ? call : self;
+ };
+
+ var taggedTemplateLiteralLoose = function (strings, raw) {
+ strings.raw = raw;
+ return strings;
+ };
+
+ /**
+ * @file obj.js
+ * @module obj
+ */
+
+ /**
+ * @callback obj:EachCallback
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ */
+
+ /**
+ * @callback obj:ReduceCallback
+ *
+ * @param {Mixed} accum
+ * The value that is accumulating over the reduce loop.
+ *
+ * @param {Mixed} value
+ * The current key for the object that is being iterated over.
+ *
+ * @param {string} key
+ * The current key-value for object that is being iterated over
+ *
+ * @return {Mixed}
+ * The new accumulated value.
+ */
+ var toString = Object.prototype.toString;
+
+ /**
+ * Get the keys of an Object
+ *
+ * @param {Object}
+ * The Object to get the keys from
+ *
+ * @return {string[]}
+ * An array of the keys from the object. Returns an empty array if the
+ * object passed in was invalid or had no keys.
+ *
+ * @private
+ */
+ var keys = function keys(object) {
+ return isObject(object) ? Object.keys(object) : [];
+ };
+
+ /**
+ * Array-like iteration for objects.
+ *
+ * @param {Object} object
+ * The object to iterate over
+ *
+ * @param {obj:EachCallback} fn
+ * The callback function which is called for each key in the object.
+ */
+ function each(object, fn) {
+ keys(object).forEach(function (key) {
+ return fn(object[key], key);
+ });
+ }
+
+ /**
+ * Array-like reduce for objects.
+ *
+ * @param {Object} object
+ * The Object that you want to reduce.
+ *
+ * @param {Function} fn
+ * A callback function which is called for each key in the object. It
+ * receives the accumulated value and the per-iteration value and key
+ * as arguments.
+ *
+ * @param {Mixed} [initial = 0]
+ * Starting value
+ *
+ * @return {Mixed}
+ * The final accumulated value.
+ */
+ function reduce(object, fn) {
+ var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ return keys(object).reduce(function (accum, key) {
+ return fn(accum, object[key], key);
+ }, initial);
+ }
+
+ /**
+ * Object.assign-style object shallow merge/extend.
+ *
+ * @param {Object} target
+ * @param {Object} ...sources
+ * @return {Object}
+ */
+ function assign(target) {
+ for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+ sources[_key - 1] = arguments[_key];
+ }
+
+ if (Object.assign) {
+ return Object.assign.apply(Object, [target].concat(sources));
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ target[key] = value;
+ });
+ });
+
+ return target;
+ }
+
+ /**
+ * Returns whether a value is an object of any kind - including DOM nodes,
+ * arrays, regular expressions, etc. Not functions, though.
+ *
+ * This avoids the gotcha where using `typeof` on a `null` value
+ * results in `'object'`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isObject(value) {
+ return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';
+ }
+
+ /**
+ * Returns whether an object appears to be a "plain" object - that is, a
+ * direct instance of `Object`.
+ *
+ * @param {Object} value
+ * @return {Boolean}
+ */
+ function isPlain(value) {
+ return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;
+ }
+
+ /**
+ * @file computed-style.js
+ * @module computed-style
+ */
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is needed because in Firefox, if the player is loaded in an iframe with
+ * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to
+ * make sure that the player doesn't break in these cases.
+ *
+ * @param {Element} el
+ * The element you want the computed style of
+ *
+ * @param {string} prop
+ * The property name you want
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ *
+ * @static
+ * @const
+ */
+ function computedStyle(el, prop) {
+ if (!el || !prop) {
+ return '';
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var cs = window_1.getComputedStyle(el);
+
+ return cs ? cs[prop] : '';
+ }
+
+ return '';
+ }
+
+ var _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\n has been deprecated. Use the third argument instead.\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);
+
+ /**
+ * Detect if a value is a string with any non-whitespace characters.
+ *
+ * @param {string} str
+ * The string to check
+ *
+ * @return {boolean}
+ * - True if the string is non-blank
+ * - False otherwise
+ *
+ */
+ function isNonBlankString(str) {
+ return typeof str === 'string' && /\S/.test(str);
+ }
+
+ /**
+ * Throws an error if the passed string has whitespace. This is used by
+ * class methods to be relatively consistent with the classList API.
+ *
+ * @param {string} str
+ * The string to check for whitespace.
+ *
+ * @throws {Error}
+ * Throws an error if there is whitespace in the string.
+ *
+ */
+ function throwIfWhitespace(str) {
+ if (/\s/.test(str)) {
+ throw new Error('class has illegal whitespace characters');
+ }
+ }
+
+ /**
+ * Produce a regular expression for matching a className within an elements className.
+ *
+ * @param {string} className
+ * The className to generate the RegExp for.
+ *
+ * @return {RegExp}
+ * The RegExp that will check for a specific `className` in an elements
+ * className.
+ */
+ function classRegExp(className) {
+ return new RegExp('(^|\\s)' + className + '($|\\s)');
+ }
+
+ /**
+ * Whether the current DOM interface appears to be real.
+ *
+ * @return {Boolean}
+ */
+ function isReal() {
+ // Both document and window will never be undefined thanks to `global`.
+ return document_1 === window_1.document;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @param {Mixed} value
+ * The thing to check
+ *
+ * @return {boolean}
+ * - True if it is a DOM element
+ * - False otherwise
+ */
+ function isEl(value) {
+ return isObject(value) && value.nodeType === 1;
+ }
+
+ /**
+ * Determines if the current DOM is embedded in an iframe.
+ *
+ * @return {boolean}
+ *
+ */
+ function isInFrame() {
+
+ // We need a try/catch here because Safari will throw errors when attempting
+ // to get either `parent` or `self`
+ try {
+ return window_1.parent !== window_1.self;
+ } catch (x) {
+ return true;
+ }
+ }
+
+ /**
+ * Creates functions to query the DOM using a given method.
+ *
+ * @param {string} method
+ * The method to create the query with.
+ *
+ * @return {Function}
+ * The query method
+ */
+ function createQuerier(method) {
+ return function (selector, context) {
+ if (!isNonBlankString(selector)) {
+ return document_1[method](null);
+ }
+ if (isNonBlankString(context)) {
+ context = document_1.querySelector(context);
+ }
+
+ var ctx = isEl(context) ? context : document_1;
+
+ return ctx[method] && ctx[method](selector);
+ };
+ }
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @param {string} [tagName='div']
+ * Name of tag to be created.
+ *
+ * @param {Object} [properties={}]
+ * Element properties to be applied.
+ *
+ * @param {Object} [attributes={}]
+ * Element attributes to be applied.
+ *
+ * @param {String|Element|TextNode|Array|Function} [content]
+ * Contents for the element (see: {@link dom:normalizeContent})
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ function createEl() {
+ var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+ var content = arguments[3];
+
+ var el = document_1.createElement(tagName);
+
+ Object.getOwnPropertyNames(properties).forEach(function (propName) {
+ var val = properties[propName];
+
+ // See #2176
+ // We originally were accepting both properties and attributes in the
+ // same object, but that doesn't work so well.
+ if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
+ log$1.warn(tsml(_templateObject, propName, val));
+ el.setAttribute(propName, val);
+
+ // Handle textContent since it's not supported everywhere and we have a
+ // method for it.
+ } else if (propName === 'textContent') {
+ textContent(el, val);
+ } else {
+ el[propName] = val;
+ }
+ });
+
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ el.setAttribute(attrName, attributes[attrName]);
+ });
+
+ if (content) {
+ appendContent(el, content);
+ }
+
+ return el;
+ }
+
+ /**
+ * Injects text into an element, replacing any existing contents entirely.
+ *
+ * @param {Element} el
+ * The element to add text content into
+ *
+ * @param {string} text
+ * The text content to add.
+ *
+ * @return {Element}
+ * The element with added text content.
+ */
+ function textContent(el, text) {
+ if (typeof el.textContent === 'undefined') {
+ el.innerText = text;
+ } else {
+ el.textContent = text;
+ }
+ return el;
+ }
+
+ /**
+ * Insert an element as the first child node of another
+ *
+ * @param {Element} child
+ * Element to insert
+ *
+ * @param {Element} parent
+ * Element to insert child into
+ */
+ function prependTo(child, parent) {
+ if (parent.firstChild) {
+ parent.insertBefore(child, parent.firstChild);
+ } else {
+ parent.appendChild(child);
+ }
+ }
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @param {Element} element
+ * Element to check
+ *
+ * @param {string} classToCheck
+ * Class name to check for
+ *
+ * @return {boolean}
+ * - True if the element had the class
+ * - False otherwise.
+ *
+ * @throws {Error}
+ * Throws an error if `classToCheck` has white space.
+ */
+ function hasClass(element, classToCheck) {
+ throwIfWhitespace(classToCheck);
+ if (element.classList) {
+ return element.classList.contains(classToCheck);
+ }
+ return classRegExp(classToCheck).test(element.className);
+ }
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @param {Element} element
+ * Element to add class name to.
+ *
+ * @param {string} classToAdd
+ * Class name to add.
+ *
+ * @return {Element}
+ * The dom element with the added class name.
+ */
+ function addClass(element, classToAdd) {
+ if (element.classList) {
+ element.classList.add(classToAdd);
+
+ // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
+ // in the case of classList not being supported.
+ } else if (!hasClass(element, classToAdd)) {
+ element.className = (element.className + ' ' + classToAdd).trim();
+ }
+
+ return element;
+ }
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @param {Element} element
+ * Element to remove a class name from.
+ *
+ * @param {string} classToRemove
+ * Class name to remove
+ *
+ * @return {Element}
+ * The dom element with class name removed.
+ */
+ function removeClass(element, classToRemove) {
+ if (element.classList) {
+ element.classList.remove(classToRemove);
+ } else {
+ throwIfWhitespace(classToRemove);
+ element.className = element.className.split(/\s+/).filter(function (c) {
+ return c !== classToRemove;
+ }).join(' ');
+ }
+
+ return element;
+ }
+
+ /**
+ * The callback definition for toggleElClass.
+ *
+ * @callback Dom~PredicateCallback
+ * @param {Element} element
+ * The DOM element of the Component.
+ *
+ * @param {string} classToToggle
+ * The `className` that wants to be toggled
+ *
+ * @return {boolean|undefined}
+ * - If true the `classToToggle` will get added to `element`.
+ * - If false the `classToToggle` will get removed from `element`.
+ * - If undefined this callback will be ignored
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @param {Element} element
+ * The element to toggle a class name on.
+ *
+ * @param {string} classToToggle
+ * The class that should be toggled
+ *
+ * @param {boolean|PredicateCallback} [predicate]
+ * See the return value for {@link Dom~PredicateCallback}
+ *
+ * @return {Element}
+ * The element with a class that has been toggled.
+ */
+ function toggleClass(element, classToToggle, predicate) {
+
+ // This CANNOT use `classList` internally because IE11 does not support the
+ // second parameter to the `classList.toggle()` method! Which is fine because
+ // `classList` will be used by the add/remove functions.
+ var has = hasClass(element, classToToggle);
+
+ if (typeof predicate === 'function') {
+ predicate = predicate(element, classToToggle);
+ }
+
+ if (typeof predicate !== 'boolean') {
+ predicate = !has;
+ }
+
+ // If the necessary class operation matches the current state of the
+ // element, no action is required.
+ if (predicate === has) {
+ return;
+ }
+
+ if (predicate) {
+ addClass(element, classToToggle);
+ } else {
+ removeClass(element, classToToggle);
+ }
+
+ return element;
+ }
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @param {Element} el
+ * Element to add attributes to.
+ *
+ * @param {Object} [attributes]
+ * Attributes to be applied.
+ */
+ function setAttributes(el, attributes) {
+ Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+ var attrValue = attributes[attrName];
+
+ if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+ el.removeAttribute(attrName);
+ } else {
+ el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+ }
+ });
+ }
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @param {Element} tag
+ * Element from which to get tag attributes.
+ *
+ * @return {Object}
+ * All attributes of the element.
+ */
+ function getAttributes(tag) {
+ var obj = {};
+
+ // known boolean attributes
+ // we can check for matching boolean properties, but not all browsers
+ // and not all tags know about these attributes, so, we still want to check them manually
+ var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+
+ if (tag && tag.attributes && tag.attributes.length > 0) {
+ var attrs = tag.attributes;
+
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ var attrName = attrs[i].name;
+ var attrVal = attrs[i].value;
+
+ // check for known booleans
+ // the matching element property will return a value for typeof
+ if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+ // the value of an included boolean attribute is typically an empty
+ // string ('') which would equal false if we just check for a false value.
+ // we also don't want support bad code like autoplay='false'
+ attrVal = attrVal !== null ? true : false;
+ }
+
+ obj[attrName] = attrVal;
+ }
+ }
+
+ return obj;
+ }
+
+ /**
+ * Get the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to get the value of
+ *
+ * @return {string}
+ * value of the attribute
+ */
+ function getAttribute(el, attribute) {
+ return el.getAttribute(attribute);
+ }
+
+ /**
+ * Set the value of an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to set
+ *
+ * @param {string} value
+ * Value to set the attribute to
+ */
+ function setAttribute(el, attribute, value) {
+ el.setAttribute(attribute, value);
+ }
+
+ /**
+ * Remove an element's attribute
+ *
+ * @param {Element} el
+ * A DOM element
+ *
+ * @param {string} attribute
+ * Attribute to remove
+ */
+ function removeAttribute(el, attribute) {
+ el.removeAttribute(attribute);
+ }
+
+ /**
+ * Attempt to block the ability to select text while dragging controls
+ */
+ function blockTextSelection() {
+ document_1.body.focus();
+ document_1.onselectstart = function () {
+ return false;
+ };
+ }
+
+ /**
+ * Turn off text selection blocking
+ */
+ function unblockTextSelection() {
+ document_1.onselectstart = function () {
+ return true;
+ };
+ }
+
+ /**
+ * Identical to the native `getBoundingClientRect` function, but ensures that
+ * the method is supported at all (it is in all browsers we claim to support)
+ * and that the element is in the DOM before continuing.
+ *
+ * This wrapper function also shims properties which are not provided by some
+ * older browsers (namely, IE8).
+ *
+ * Additionally, some browsers do not support adding properties to a
+ * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+ * properties (except `x` and `y` which are not widely supported). This helps
+ * avoid implementations where keys are non-enumerable.
+ *
+ * @param {Element} el
+ * Element whose `ClientRect` we want to calculate.
+ *
+ * @return {Object|undefined}
+ * Always returns a plain
+ */
+ function getBoundingClientRect(el) {
+ if (el && el.getBoundingClientRect && el.parentNode) {
+ var rect = el.getBoundingClientRect();
+ var result = {};
+
+ ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
+ if (rect[k] !== undefined) {
+ result[k] = rect[k];
+ }
+ });
+
+ if (!result.height) {
+ result.height = parseFloat(computedStyle(el, 'height'));
+ }
+
+ if (!result.width) {
+ result.width = parseFloat(computedStyle(el, 'width'));
+ }
+
+ return result;
+ }
+ }
+
+ /**
+ * The postion of a DOM element on the page.
+ *
+ * @typedef {Object} module:dom~Position
+ *
+ * @property {number} left
+ * Pixels to the left
+ *
+ * @property {number} top
+ * Pixels on top
+ */
+
+ /**
+ * Offset Left.
+ * getBoundingClientRect technique from
+ * John Resig
+ *
+ * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+ *
+ * @param {Element} el
+ * Element from which to get offset
+ *
+ * @return {module:dom~Position}
+ * The position of the element that was passed in.
+ */
+ function findPosition(el) {
+ var box = void 0;
+
+ if (el.getBoundingClientRect && el.parentNode) {
+ box = el.getBoundingClientRect();
+ }
+
+ if (!box) {
+ return {
+ left: 0,
+ top: 0
+ };
+ }
+
+ var docEl = document_1.documentElement;
+ var body = document_1.body;
+
+ var clientLeft = docEl.clientLeft || body.clientLeft || 0;
+ var scrollLeft = window_1.pageXOffset || body.scrollLeft;
+ var left = box.left + scrollLeft - clientLeft;
+
+ var clientTop = docEl.clientTop || body.clientTop || 0;
+ var scrollTop = window_1.pageYOffset || body.scrollTop;
+ var top = box.top + scrollTop - clientTop;
+
+ // Android sometimes returns slightly off decimal values, so need to round
+ return {
+ left: Math.round(left),
+ top: Math.round(top)
+ };
+ }
+
+ /**
+ * x and y coordinates for a dom element or mouse pointer
+ *
+ * @typedef {Object} Dom~Coordinates
+ *
+ * @property {number} x
+ * x coordinate in pixels
+ *
+ * @property {number} y
+ * y coordinate in pixels
+ */
+
+ /**
+ * Get pointer position in element
+ * Returns an object with x and y coordinates.
+ * The base on the coordinates are the bottom left of the element.
+ *
+ * @param {Element} el
+ * Element on which to get the pointer position on
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {Dom~Coordinates}
+ * A Coordinates object corresponding to the mouse position.
+ *
+ */
+ function getPointerPosition(el, event) {
+ var position = {};
+ var box = findPosition(el);
+ var boxW = el.offsetWidth;
+ var boxH = el.offsetHeight;
+
+ var boxY = box.top;
+ var boxX = box.left;
+ var pageY = event.pageY;
+ var pageX = event.pageX;
+
+ if (event.changedTouches) {
+ pageX = event.changedTouches[0].pageX;
+ pageY = event.changedTouches[0].pageY;
+ }
+
+ position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));
+ position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
+
+ return position;
+ }
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @param {Mixed} value
+ * Check if this value is a text node.
+ *
+ * @return {boolean}
+ * - True if it is a text node
+ * - False otherwise
+ */
+ function isTextNode(value) {
+ return isObject(value) && value.nodeType === 3;
+ }
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @param {Element} el
+ * The element to empty children from
+ *
+ * @return {Element}
+ * The element with no children
+ */
+ function emptyEl(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+ return el;
+ }
+
+ /**
+ * Normalizes content for eventual insertion into the DOM.
+ *
+ * This allows a wide range of content definition methods, but protects
+ * from falling into the trap of simply writing to `innerHTML`, which is
+ * an XSS concern.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * - String: Normalized into a text node.
+ * - Element/TextNode: Passed through.
+ * - Array: A one-dimensional array of strings, elements, nodes, or functions
+ * (which return single strings, elements, or nodes).
+ * - Function: If the sole argument, is expected to produce a string, element,
+ * node, or array as defined above.
+ *
+ * @return {Array}
+ * All of the content that was passed in normalized.
+ */
+ function normalizeContent(content) {
+
+ // First, invoke content if it is a function. If it produces an array,
+ // that needs to happen before normalization.
+ if (typeof content === 'function') {
+ content = content();
+ }
+
+ // Next up, normalize to an array, so one or many items can be normalized,
+ // filtered, and returned.
+ return (Array.isArray(content) ? content : [content]).map(function (value) {
+
+ // First, invoke value if it is a function to produce a new value,
+ // which will be subsequently normalized to a Node of some kind.
+ if (typeof value === 'function') {
+ value = value();
+ }
+
+ if (isEl(value) || isTextNode(value)) {
+ return value;
+ }
+
+ if (typeof value === 'string' && /\S/.test(value)) {
+ return document_1.createTextNode(value);
+ }
+ }).filter(function (value) {
+ return value;
+ });
+ }
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * @param {Element} el
+ * Element to append normalized content to.
+ *
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with appended normalized content.
+ */
+ function appendContent(el, content) {
+ normalizeContent(content).forEach(function (node) {
+ return el.appendChild(node);
+ });
+ return el;
+ }
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * @param {Element} el
+ * Element to insert normalized content into.
+ *
+ * @param {String|Element|TextNode|Array|Function} content
+ * See the `content` argument of {@link dom:normalizeContent}
+ *
+ * @return {Element}
+ * The element with inserted normalized content.
+ *
+ */
+ function insertContent(el, content) {
+ return appendContent(emptyEl(el), content);
+ }
+
+ /**
+ * Check if event was a single left click
+ *
+ * @param {EventTarget~Event} event
+ * Event object
+ *
+ * @return {boolean}
+ * - True if a left click
+ * - False if not a left click
+ */
+ function isSingleLeftClick(event) {
+ // Note: if you create something draggable, be sure to
+ // call it on both `mousedown` and `mousemove` event,
+ // otherwise `mousedown` should be enough for a button
+
+ if (event.button === undefined && event.buttons === undefined) {
+ // Why do we need `buttons` ?
+ // Because, middle mouse sometimes have this:
+ // e.button === 0 and e.buttons === 4
+ // Furthermore, we want to prevent combination click, something like
+ // HOLD middlemouse then left click, that would be
+ // e.button === 0, e.buttons === 5
+ // just `button` is not gonna work
+
+ // Alright, then what this block does ?
+ // this is for chrome `simulate mobile devices`
+ // I want to support this as well
+
+ return true;
+ }
+
+ if (event.button === 0 && event.buttons === undefined) {
+ // Touch screen, sometimes on some specific device, `buttons`
+ // doesn't have anything (safari on ios, blackberry...)
+
+ return true;
+ }
+
+ if (event.button !== 0 || event.buttons !== 1) {
+ // This is the reason we have those if else block above
+ // if any special case we can catch and let it slide
+ // we do it above, when get to here, this definitely
+ // is-not-left-click
+
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Finds a single DOM element matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {Element|null}
+ * The element that was found or null.
+ */
+ var $ = createQuerier('querySelector');
+
+ /**
+ * Finds a all DOM elements matching `selector` within the optional
+ * `context` of another DOM element (defaulting to `document`).
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|String} [context=document]
+ * A DOM element within which to query. Can also be a selector
+ * string in which case the first matching element will be used
+ * as context. If missing (or no element matches selector), falls
+ * back to `document`.
+ *
+ * @return {NodeList}
+ * A element list of elements that were found. Will be empty if none were found.
+ *
+ */
+ var $$ = createQuerier('querySelectorAll');
+
+ var Dom = /*#__PURE__*/Object.freeze({
+ isReal: isReal,
+ isEl: isEl,
+ isInFrame: isInFrame,
+ createEl: createEl,
+ textContent: textContent,
+ prependTo: prependTo,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ toggleClass: toggleClass,
+ setAttributes: setAttributes,
+ getAttributes: getAttributes,
+ getAttribute: getAttribute,
+ setAttribute: setAttribute,
+ removeAttribute: removeAttribute,
+ blockTextSelection: blockTextSelection,
+ unblockTextSelection: unblockTextSelection,
+ getBoundingClientRect: getBoundingClientRect,
+ findPosition: findPosition,
+ getPointerPosition: getPointerPosition,
+ isTextNode: isTextNode,
+ emptyEl: emptyEl,
+ normalizeContent: normalizeContent,
+ appendContent: appendContent,
+ insertContent: insertContent,
+ isSingleLeftClick: isSingleLeftClick,
+ $: $,
+ $$: $$
+ });
+
+ /**
+ * @file guid.js
+ * @module guid
+ */
+
+ /**
+ * Unique ID for an element or function
+ * @type {Number}
+ */
+ var _guid = 1;
+
+ /**
+ * Get a unique auto-incrementing ID by number that has not been returned before.
+ *
+ * @return {number}
+ * A new unique ID.
+ */
+ function newGUID() {
+ return _guid++;
+ }
+
+ /**
+ * @file dom-data.js
+ * @module dom-data
+ */
+
+ /**
+ * Element Data Store.
+ *
+ * Allows for binding data to an element without putting it directly on the
+ * element. Ex. Event listeners are stored here.
+ * (also from jsninja.com, slightly modified and updated for closure compiler)
+ *
+ * @type {Object}
+ * @private
+ */
+ var elData = {};
+
+ /*
+ * Unique attribute name to store an element's guid in
+ *
+ * @type {String}
+ * @constant
+ * @private
+ */
+ var elIdAttr = 'vdata' + new Date().getTime();
+
+ /**
+ * Returns the cache object where data for an element is stored
+ *
+ * @param {Element} el
+ * Element to store data for.
+ *
+ * @return {Object}
+ * The cache object for that el that was passed in.
+ */
+ function getData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ id = el[elIdAttr] = newGUID();
+ }
+
+ if (!elData[id]) {
+ elData[id] = {};
+ }
+
+ return elData[id];
+ }
+
+ /**
+ * Returns whether or not an element has cached data
+ *
+ * @param {Element} el
+ * Check if this element has cached data.
+ *
+ * @return {boolean}
+ * - True if the DOM element has cached data.
+ * - False otherwise.
+ */
+ function hasData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return false;
+ }
+
+ return !!Object.getOwnPropertyNames(elData[id]).length;
+ }
+
+ /**
+ * Delete data for the element from the cache and the guid attr from getElementById
+ *
+ * @param {Element} el
+ * Remove cached data for this element.
+ */
+ function removeData(el) {
+ var id = el[elIdAttr];
+
+ if (!id) {
+ return;
+ }
+
+ // Remove all stored data
+ delete elData[id];
+
+ // Remove the elIdAttr property from the DOM node
+ try {
+ delete el[elIdAttr];
+ } catch (e) {
+ if (el.removeAttribute) {
+ el.removeAttribute(elIdAttr);
+ } else {
+ // IE doesn't appear to support removeAttribute on the document element
+ el[elIdAttr] = null;
+ }
+ }
+ }
+
+ /**
+ * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+ * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+ * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+ * robust as jquery's, so there's probably some differences.
+ *
+ * @module events
+ */
+
+ /**
+ * Clean up the listener cache and dispatchers
+ *
+ * @param {Element|Object} elem
+ * Element to clean up
+ *
+ * @param {string} type
+ * Type of event to clean up
+ */
+ function _cleanUpEvents(elem, type) {
+ var data = getData(elem);
+
+ // Remove the events of a particular type if there are none left
+ if (data.handlers[type].length === 0) {
+ delete data.handlers[type];
+ // data.handlers[type] = null;
+ // Setting to null was causing an error with data.handlers
+
+ // Remove the meta-handler from the element
+ if (elem.removeEventListener) {
+ elem.removeEventListener(type, data.dispatcher, false);
+ } else if (elem.detachEvent) {
+ elem.detachEvent('on' + type, data.dispatcher);
+ }
+ }
+
+ // Remove the events object if there are no types left
+ if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+ delete data.handlers;
+ delete data.dispatcher;
+ delete data.disabled;
+ }
+
+ // Finally remove the element data if there is no data left
+ if (Object.getOwnPropertyNames(data).length === 0) {
+ removeData(elem);
+ }
+ }
+
+ /**
+ * Loops through an array of event types and calls the requested method for each type.
+ *
+ * @param {Function} fn
+ * The event method we want to use.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} callback
+ * Event listener.
+ */
+ function _handleMultipleEvents(fn, elem, types, callback) {
+ types.forEach(function (type) {
+ // Call the event method for each one of the types
+ fn(elem, type, callback);
+ });
+ }
+
+ /**
+ * Fix a native event to have standard property values
+ *
+ * @param {Object} event
+ * Event object to fix.
+ *
+ * @return {Object}
+ * Fixed event object.
+ */
+ function fixEvent(event) {
+
+ function returnTrue() {
+ return true;
+ }
+
+ function returnFalse() {
+ return false;
+ }
+
+ // Test if fixing up is needed
+ // Used to check if !event.stopPropagation instead of isPropagationStopped
+ // But native events return true for stopPropagation, but don't have
+ // other expected methods like isPropagationStopped. Seems to be a problem
+ // with the Javascript Ninja code. So we're just overriding all events now.
+ if (!event || !event.isPropagationStopped) {
+ var old = event || window_1.event;
+
+ event = {};
+ // Clone the old object so that we can modify the values event = {};
+ // IE8 Doesn't like when you mess with native event properties
+ // Firefox returns false for event.hasOwnProperty('type') and other props
+ // which makes copying more difficult.
+ // TODO: Probably best to create a whitelist of event props
+ for (var key in old) {
+ // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+ // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+ // and webkitMovementX/Y
+ if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {
+ // Chrome 32+ warns if you try to copy deprecated returnValue, but
+ // we still want to if preventDefault isn't supported (IE8).
+ if (!(key === 'returnValue' && old.preventDefault)) {
+ event[key] = old[key];
+ }
+ }
+ }
+
+ // The event occurred on this element
+ if (!event.target) {
+ event.target = event.srcElement || document_1;
+ }
+
+ // Handle which other element the event is related to
+ if (!event.relatedTarget) {
+ event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+ }
+
+ // Stop the default browser action
+ event.preventDefault = function () {
+ if (old.preventDefault) {
+ old.preventDefault();
+ }
+ event.returnValue = false;
+ old.returnValue = false;
+ event.defaultPrevented = true;
+ };
+
+ event.defaultPrevented = false;
+
+ // Stop the event from bubbling
+ event.stopPropagation = function () {
+ if (old.stopPropagation) {
+ old.stopPropagation();
+ }
+ event.cancelBubble = true;
+ old.cancelBubble = true;
+ event.isPropagationStopped = returnTrue;
+ };
+
+ event.isPropagationStopped = returnFalse;
+
+ // Stop the event from bubbling and executing other handlers
+ event.stopImmediatePropagation = function () {
+ if (old.stopImmediatePropagation) {
+ old.stopImmediatePropagation();
+ }
+ event.isImmediatePropagationStopped = returnTrue;
+ event.stopPropagation();
+ };
+
+ event.isImmediatePropagationStopped = returnFalse;
+
+ // Handle mouse position
+ if (event.clientX !== null && event.clientX !== undefined) {
+ var doc = document_1.documentElement;
+ var body = document_1.body;
+
+ event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+ event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+ }
+
+ // Handle key presses
+ event.which = event.charCode || event.keyCode;
+
+ // Fix button for mouse clicks:
+ // 0 == left; 1 == middle; 2 == right
+ if (event.button !== null && event.button !== undefined) {
+
+ // The following is disabled because it does not pass videojs-standard
+ // and... yikes.
+ /* eslint-disable */
+ event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+ /* eslint-enable */
+ }
+ }
+
+ // Returns fixed-up instance
+ return event;
+ }
+
+ /**
+ * Whether passive event listeners are supported
+ */
+ var _supportsPassive = false;
+
+ (function () {
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function get() {
+ _supportsPassive = true;
+ }
+ });
+
+ window_1.addEventListener('test', null, opts);
+ window_1.removeEventListener('test', null, opts);
+ } catch (e) {
+ // disregard
+ }
+ })();
+
+ /**
+ * Touch events Chrome expects to be passive
+ */
+ var passiveEvents = ['touchstart', 'touchmove'];
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind listeners to
+ *
+ * @param {string|string[]} type
+ * Type of event to bind to.
+ *
+ * @param {EventTarget~EventListener} fn
+ * Event listener.
+ */
+ function on(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(on, elem, type, fn);
+ }
+
+ var data = getData(elem);
+
+ // We need a place to store all our handler data
+ if (!data.handlers) {
+ data.handlers = {};
+ }
+
+ if (!data.handlers[type]) {
+ data.handlers[type] = [];
+ }
+
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ data.handlers[type].push(fn);
+
+ if (!data.dispatcher) {
+ data.disabled = false;
+
+ data.dispatcher = function (event, hash) {
+
+ if (data.disabled) {
+ return;
+ }
+
+ event = fixEvent(event);
+
+ var handlers = data.handlers[event.type];
+
+ if (handlers) {
+ // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+ var handlersCopy = handlers.slice(0);
+
+ for (var m = 0, n = handlersCopy.length; m < n; m++) {
+ if (event.isImmediatePropagationStopped()) {
+ break;
+ } else {
+ try {
+ handlersCopy[m].call(elem, event, hash);
+ } catch (e) {
+ log$1.error(e);
+ }
+ }
+ }
+ }
+ };
+ }
+
+ if (data.handlers[type].length === 1) {
+ if (elem.addEventListener) {
+ var options = false;
+
+ if (_supportsPassive && passiveEvents.indexOf(type) > -1) {
+ options = { passive: true };
+ }
+ elem.addEventListener(type, data.dispatcher, options);
+ } else if (elem.attachEvent) {
+ elem.attachEvent('on' + type, data.dispatcher);
+ }
+ }
+ }
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @param {Element|Object} elem
+ * Object to remove listeners from.
+ *
+ * @param {string|string[]} [type]
+ * Type of listener to remove. Don't include to remove all events from element.
+ *
+ * @param {EventTarget~EventListener} [fn]
+ * Specific listener to remove. Don't include to remove listeners for an event
+ * type.
+ */
+ function off(elem, type, fn) {
+ // Don't want to add a cache object through getElData if not needed
+ if (!hasData(elem)) {
+ return;
+ }
+
+ var data = getData(elem);
+
+ // If no events exist, nothing to unbind
+ if (!data.handlers) {
+ return;
+ }
+
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(off, elem, type, fn);
+ }
+
+ // Utility function
+ var removeType = function removeType(el, t) {
+ data.handlers[t] = [];
+ _cleanUpEvents(el, t);
+ };
+
+ // Are we removing all bound events?
+ if (type === undefined) {
+ for (var t in data.handlers) {
+ if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+ removeType(elem, t);
+ }
+ }
+ return;
+ }
+
+ var handlers = data.handlers[type];
+
+ // If no handlers exist, nothing to unbind
+ if (!handlers) {
+ return;
+ }
+
+ // If no listener was provided, remove all listeners for type
+ if (!fn) {
+ removeType(elem, type);
+ return;
+ }
+
+ // We're only removing a single handler
+ if (fn.guid) {
+ for (var n = 0; n < handlers.length; n++) {
+ if (handlers[n].guid === fn.guid) {
+ handlers.splice(n--, 1);
+ }
+ }
+ }
+
+ _cleanUpEvents(elem, type);
+ }
+
+ /**
+ * Trigger an event for an element
+ *
+ * @param {Element|Object} elem
+ * Element to trigger an event on
+ *
+ * @param {EventTarget~Event|string} event
+ * A string (the type) or an event object with a type attribute
+ *
+ * @param {Object} [hash]
+ * data hash to pass along with the event
+ *
+ * @return {boolean|undefined}
+ * - Returns the opposite of `defaultPrevented` if default was prevented
+ * - Otherwise returns undefined
+ */
+ function trigger(elem, event, hash) {
+ // Fetches element data and a reference to the parent (for bubbling).
+ // Don't want to add a data object to cache for every parent,
+ // so checking hasElData first.
+ var elemData = hasData(elem) ? getData(elem) : {};
+ var parent = elem.parentNode || elem.ownerDocument;
+ // type = event.type || event,
+ // handler;
+
+ // If an event name was passed as a string, creates an event out of it
+ if (typeof event === 'string') {
+ event = { type: event, target: elem };
+ } else if (!event.target) {
+ event.target = elem;
+ }
+
+ // Normalizes the event properties.
+ event = fixEvent(event);
+
+ // If the passed element has a dispatcher, executes the established handlers.
+ if (elemData.dispatcher) {
+ elemData.dispatcher.call(elem, event, hash);
+ }
+
+ // Unless explicitly stopped or the event does not bubble (e.g. media events)
+ // recursively calls this function to bubble the event up the DOM.
+ if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+ trigger.call(null, parent, event, hash);
+
+ // If at the top of the DOM, triggers the default action unless disabled.
+ } else if (!parent && !event.defaultPrevented) {
+ var targetData = getData(event.target);
+
+ // Checks if the target has a default action for this event.
+ if (event.target[event.type]) {
+ // Temporarily disables event dispatching on the target as we have already executed the handler.
+ targetData.disabled = true;
+ // Executes the default action.
+ if (typeof event.target[event.type] === 'function') {
+ event.target[event.type]();
+ }
+ // Re-enables event dispatching.
+ targetData.disabled = false;
+ }
+ }
+
+ // Inform the triggerer if the default was prevented by returning false
+ return !event.defaultPrevented;
+ }
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @param {Element|Object} elem
+ * Element or object to bind to.
+ *
+ * @param {string|string[]} type
+ * Name/type of event
+ *
+ * @param {Event~EventListener} fn
+ * Event Listener function
+ */
+ function one(elem, type, fn) {
+ if (Array.isArray(type)) {
+ return _handleMultipleEvents(one, elem, type, fn);
+ }
+ var func = function func() {
+ off(elem, type, func);
+ fn.apply(this, arguments);
+ };
+
+ // copy the guid to the new function so it can removed using the original function's ID
+ func.guid = fn.guid = fn.guid || newGUID();
+ on(elem, type, func);
+ }
+
+ var Events = /*#__PURE__*/Object.freeze({
+ fixEvent: fixEvent,
+ on: on,
+ off: off,
+ trigger: trigger,
+ one: one
+ });
+
+ /**
+ * @file setup.js - Functions for setting up a player without
+ * user interaction based on the data-setup `attribute` of the video tag.
+ *
+ * @module setup
+ */
+
+ var _windowLoaded = false;
+ var videojs = void 0;
+
+ /**
+ * Set up any tags that have a data-setup `attribute` when the player is started.
+ */
+ var autoSetup = function autoSetup() {
+
+ // Protect against breakage in non-browser environments and check global autoSetup option.
+ if (!isReal() || videojs.options.autoSetup === false) {
+ return;
+ }
+
+ var vids = Array.prototype.slice.call(document_1.getElementsByTagName('video'));
+ var audios = Array.prototype.slice.call(document_1.getElementsByTagName('audio'));
+ var divs = Array.prototype.slice.call(document_1.getElementsByTagName('video-js'));
+ var mediaEls = vids.concat(audios, divs);
+
+ // Check if any media elements exist
+ if (mediaEls && mediaEls.length > 0) {
+
+ for (var i = 0, e = mediaEls.length; i < e; i++) {
+ var mediaEl = mediaEls[i];
+
+ // Check if element exists, has getAttribute func.
+ if (mediaEl && mediaEl.getAttribute) {
+
+ // Make sure this player hasn't already been set up.
+ if (mediaEl.player === undefined) {
+ var options = mediaEl.getAttribute('data-setup');
+
+ // Check if data-setup attr exists.
+ // We only auto-setup if they've added the data-setup attr.
+ if (options !== null) {
+ // Create new video.js instance.
+ videojs(mediaEl);
+ }
+ }
+
+ // If getAttribute isn't defined, we need to wait for the DOM.
+ } else {
+ autoSetupTimeout(1);
+ break;
+ }
+ }
+
+ // No videos were found, so keep looping unless page is finished loading.
+ } else if (!_windowLoaded) {
+ autoSetupTimeout(1);
+ }
+ };
+
+ /**
+ * Wait until the page is loaded before running autoSetup. This will be called in
+ * autoSetup if `hasLoaded` returns false.
+ *
+ * @param {number} wait
+ * How long to wait in ms
+ *
+ * @param {module:videojs} [vjs]
+ * The videojs library function
+ */
+ function autoSetupTimeout(wait, vjs) {
+ if (vjs) {
+ videojs = vjs;
+ }
+
+ window_1.setTimeout(autoSetup, wait);
+ }
+
+ if (isReal() && document_1.readyState === 'complete') {
+ _windowLoaded = true;
+ } else {
+ /**
+ * Listen for the load event on window, and set _windowLoaded to true.
+ *
+ * @listens load
+ */
+ one(window_1, 'load', function () {
+ _windowLoaded = true;
+ });
+ }
+
+ /**
+ * @file stylesheet.js
+ * @module stylesheet
+ */
+
+ /**
+ * Create a DOM syle element given a className for it.
+ *
+ * @param {string} className
+ * The className to add to the created style element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ var createStyleElement = function createStyleElement(className) {
+ var style = document_1.createElement('style');
+
+ style.className = className;
+
+ return style;
+ };
+
+ /**
+ * Add text to a DOM element.
+ *
+ * @param {Element} el
+ * The Element to add text content to.
+ *
+ * @param {string} content
+ * The text to add to the element.
+ */
+ var setTextContent = function setTextContent(el, content) {
+ if (el.styleSheet) {
+ el.styleSheet.cssText = content;
+ } else {
+ el.textContent = content;
+ }
+ };
+
+ /**
+ * @file fn.js
+ * @module fn
+ */
+
+ /**
+ * Bind (a.k.a proxy or Context). A simple method for changing the context of a function
+ * It also stores a unique id on the function so it can be easily removed from events.
+ *
+ * @param {Mixed} context
+ * The object to bind as scope.
+ *
+ * @param {Function} fn
+ * The function to be bound to a scope.
+ *
+ * @param {number} [uid]
+ * An optional unique ID for the function to be set
+ *
+ * @return {Function}
+ * The new function that will be bound into the context given
+ */
+ var bind = function bind(context, fn, uid) {
+ // Make sure the function has a unique ID
+ if (!fn.guid) {
+ fn.guid = newGUID();
+ }
+
+ // Create the new function that changes the context
+ var bound = function bound() {
+ return fn.apply(context, arguments);
+ };
+
+ // Allow for the ability to individualize this function
+ // Needed in the case where multiple objects might share the same prototype
+ // IF both items add an event listener with the same function, then you try to remove just one
+ // it will remove both because they both have the same guid.
+ // when using this, you need to use the bind method when you remove the listener as well.
+ // currently used in text tracks
+ bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+
+ return bound;
+ };
+
+ /**
+ * Wraps the given function, `fn`, with a new function that only invokes `fn`
+ * at most once per every `wait` milliseconds.
+ *
+ * @param {Function} fn
+ * The function to be throttled.
+ *
+ * @param {Number} wait
+ * The number of milliseconds by which to throttle.
+ *
+ * @return {Function}
+ */
+ var throttle = function throttle(fn, wait) {
+ var last = Date.now();
+
+ var throttled = function throttled() {
+ var now = Date.now();
+
+ if (now - last >= wait) {
+ fn.apply(undefined, arguments);
+ last = now;
+ }
+ };
+
+ return throttled;
+ };
+
+ /**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked.
+ *
+ * Inspired by lodash and underscore implementations.
+ *
+ * @param {Function} func
+ * The function to wrap with debounce behavior.
+ *
+ * @param {number} wait
+ * The number of milliseconds to wait after the last invocation.
+ *
+ * @param {boolean} [immediate]
+ * Whether or not to invoke the function immediately upon creation.
+ *
+ * @param {Object} [context=window]
+ * The "context" in which the debounced function should debounce. For
+ * example, if this function should be tied to a Video.js player,
+ * the player can be passed here. Alternatively, defaults to the
+ * global `window` object.
+ *
+ * @return {Function}
+ * A debounced function.
+ */
+ var debounce = function debounce(func, wait, immediate) {
+ var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window_1;
+
+ var timeout = void 0;
+
+ var cancel = function cancel() {
+ context.clearTimeout(timeout);
+ timeout = null;
+ };
+
+ /* eslint-disable consistent-this */
+ var debounced = function debounced() {
+ var self = this;
+ var args = arguments;
+
+ var _later = function later() {
+ timeout = null;
+ _later = null;
+ if (!immediate) {
+ func.apply(self, args);
+ }
+ };
+
+ if (!timeout && immediate) {
+ func.apply(self, args);
+ }
+
+ context.clearTimeout(timeout);
+ timeout = context.setTimeout(_later, wait);
+ };
+ /* eslint-enable consistent-this */
+
+ debounced.cancel = cancel;
+
+ return debounced;
+ };
+
+ /**
+ * @file src/js/event-target.js
+ */
+
+ /**
+ * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+ * adds shorthand functions that wrap around lengthy functions. For example:
+ * the `on` function is a wrapper around `addEventListener`.
+ *
+ * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+ * @class EventTarget
+ */
+ var EventTarget = function EventTarget() {};
+
+ /**
+ * A Custom DOM event.
+ *
+ * @typedef {Object} EventTarget~Event
+ * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+ */
+
+ /**
+ * All event listeners should follow the following format.
+ *
+ * @callback EventTarget~EventListener
+ * @this {EventTarget}
+ *
+ * @param {EventTarget~Event} event
+ * the event that triggered this function
+ *
+ * @param {Object} [hash]
+ * hash of data sent during the event
+ */
+
+ /**
+ * An object containing event names as keys and booleans as values.
+ *
+ * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+ * will have extra functionality. See that function for more information.
+ *
+ * @property EventTarget.prototype.allowedEvents_
+ * @private
+ */
+ EventTarget.prototype.allowedEvents_ = {};
+
+ /**
+ * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+ * function that will get called when an event with a certain name gets triggered.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to call with `EventTarget`s
+ */
+ EventTarget.prototype.on = function (type, fn) {
+ // Remove the addEventListener alias before calling Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ on(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#on}
+ */
+ EventTarget.prototype.addEventListener = EventTarget.prototype.on;
+
+ /**
+ * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+ * This makes it so that the `event listener` will no longer get called when the
+ * named event happens.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to remove.
+ */
+ EventTarget.prototype.off = function (type, fn) {
+ off(this, type, fn);
+ };
+
+ /**
+ * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#off}
+ */
+ EventTarget.prototype.removeEventListener = EventTarget.prototype.off;
+
+ /**
+ * This function will add an `event listener` that gets triggered only once. After the
+ * first trigger it will get removed. This is like adding an `event listener`
+ * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+ *
+ * @param {string|string[]} type
+ * An event name or an array of event names.
+ *
+ * @param {EventTarget~EventListener} fn
+ * The function to be called once for each event name.
+ */
+ EventTarget.prototype.one = function (type, fn) {
+ // Remove the addEventListener alialing Events.on
+ // so we don't get into an infinite type loop
+ var ael = this.addEventListener;
+
+ this.addEventListener = function () {};
+ one(this, type, fn);
+ this.addEventListener = ael;
+ };
+
+ /**
+ * This function causes an event to happen. This will then cause any `event listeners`
+ * that are waiting for that event, to get called. If there are no `event listeners`
+ * for an event then nothing will happen.
+ *
+ * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+ * Trigger will also call the `on` + `uppercaseEventName` function.
+ *
+ * Example:
+ * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+ * `onClick` if it exists.
+ *
+ * @param {string|EventTarget~Event|Object} event
+ * The name of the event, an `Event`, or an object with a key of type set to
+ * an event name.
+ */
+ EventTarget.prototype.trigger = function (event) {
+ var type = event.type || event;
+
+ if (typeof event === 'string') {
+ event = { type: type };
+ }
+ event = fixEvent(event);
+
+ if (this.allowedEvents_[type] && this['on' + type]) {
+ this['on' + type](event);
+ }
+
+ trigger(this, event);
+ };
+
+ /**
+ * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+ * the standard DOM API.
+ *
+ * @function
+ * @see {@link EventTarget#trigger}
+ */
+ EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;
+
+ var EVENT_MAP = void 0;
+
+ EventTarget.prototype.queueTrigger = function (event) {
+ var _this = this;
+
+ // only set up EVENT_MAP if it'll be used
+ if (!EVENT_MAP) {
+ EVENT_MAP = new Map();
+ }
+
+ var type = event.type || event;
+ var map = EVENT_MAP.get(this);
+
+ if (!map) {
+ map = new Map();
+ EVENT_MAP.set(this, map);
+ }
+
+ var oldTimeout = map.get(type);
+
+ map.delete(type);
+ window_1.clearTimeout(oldTimeout);
+
+ var timeout = window_1.setTimeout(function () {
+ // if we cleared out all timeouts for the current target, delete its map
+ if (map.size === 0) {
+ map = null;
+ EVENT_MAP.delete(_this);
+ }
+
+ _this.trigger(event);
+ }, 0);
+
+ map.set(type, timeout);
+ };
+
+ /**
+ * @file mixins/evented.js
+ * @module evented
+ */
+
+ /**
+ * Returns whether or not an object has had the evented mixin applied.
+ *
+ * @param {Object} object
+ * An object to test.
+ *
+ * @return {boolean}
+ * Whether or not the object appears to be evented.
+ */
+ var isEvented = function isEvented(object) {
+ return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
+ return typeof object[k] === 'function';
+ });
+ };
+
+ /**
+ * Whether a value is a valid event type - non-empty string or array.
+ *
+ * @private
+ * @param {string|Array} type
+ * The type value to test.
+ *
+ * @return {boolean}
+ * Whether or not the type is a valid event type.
+ */
+ var isValidEventType = function isValidEventType(type) {
+ return (
+ // The regex here verifies that the `type` contains at least one non-
+ // whitespace character.
+ typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
+ );
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the target does not appear to be a valid event target.
+ *
+ * @param {Object} target
+ * The object to test.
+ */
+ var validateTarget = function validateTarget(target) {
+ if (!target.nodeName && !isEvented(target)) {
+ throw new Error('Invalid target; must be a DOM node or evented object.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid event target. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the type does not appear to be a valid event type.
+ *
+ * @param {string|Array} type
+ * The type to test.
+ */
+ var validateEventType = function validateEventType(type) {
+ if (!isValidEventType(type)) {
+ throw new Error('Invalid event type; must be a non-empty string or array.');
+ }
+ };
+
+ /**
+ * Validates a value to determine if it is a valid listener. Throws if not.
+ *
+ * @private
+ * @throws {Error}
+ * If the listener is not a function.
+ *
+ * @param {Function} listener
+ * The listener to test.
+ */
+ var validateListener = function validateListener(listener) {
+ if (typeof listener !== 'function') {
+ throw new Error('Invalid listener; must be a function.');
+ }
+ };
+
+ /**
+ * Takes an array of arguments given to `on()` or `one()`, validates them, and
+ * normalizes them into an object.
+ *
+ * @private
+ * @param {Object} self
+ * The evented object on which `on()` or `one()` was called. This
+ * object will be bound as the `this` value for the listener.
+ *
+ * @param {Array} args
+ * An array of arguments passed to `on()` or `one()`.
+ *
+ * @return {Object}
+ * An object containing useful values for `on()` or `one()` calls.
+ */
+ var normalizeListenArgs = function normalizeListenArgs(self, args) {
+
+ // If the number of arguments is less than 3, the target is always the
+ // evented object itself.
+ var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+ var target = void 0;
+ var type = void 0;
+ var listener = void 0;
+
+ if (isTargetingSelf) {
+ target = self.eventBusEl_;
+
+ // Deal with cases where we got 3 arguments, but we are still listening to
+ // the evented object itself.
+ if (args.length >= 3) {
+ args.shift();
+ }
+
+ type = args[0];
+ listener = args[1];
+ } else {
+ target = args[0];
+ type = args[1];
+ listener = args[2];
+ }
+
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ listener = bind(self, listener);
+
+ return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };
+ };
+
+ /**
+ * Adds the listener to the event type(s) on the target, normalizing for
+ * the type of target.
+ *
+ * @private
+ * @param {Element|Object} target
+ * A DOM node or evented object.
+ *
+ * @param {string} method
+ * The event binding method to use ("on" or "one").
+ *
+ * @param {string|Array} type
+ * One or more event type(s).
+ *
+ * @param {Function} listener
+ * A listener function.
+ */
+ var listen = function listen(target, method, type, listener) {
+ validateTarget(target);
+
+ if (target.nodeName) {
+ Events[method](target, type, listener);
+ } else {
+ target[method](type, listener);
+ }
+ };
+
+ /**
+ * Contains methods that provide event capabilities to an object which is passed
+ * to {@link module:evented|evented}.
+ *
+ * @mixin EventedMixin
+ */
+ var EventedMixin = {
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ on: function on$$1() {
+ var _this = this;
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var _normalizeListenArgs = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
+ target = _normalizeListenArgs.target,
+ type = _normalizeListenArgs.type,
+ listener = _normalizeListenArgs.listener;
+
+ listen(target, 'on', type, listener);
+
+ // If this object is listening to another evented object.
+ if (!isTargetingSelf) {
+
+ // If this object is disposed, remove the listener.
+ var removeListenerOnDispose = function removeListenerOnDispose() {
+ return _this.off(target, type, listener);
+ };
+
+ // Use the same function ID as the listener so we can remove it later it
+ // using the ID of the original listener.
+ removeListenerOnDispose.guid = listener.guid;
+
+ // Add a listener to the target's dispose event as well. This ensures
+ // that if the target is disposed BEFORE this object, we remove the
+ // removal listener that was just added. Otherwise, we create a memory leak.
+ var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
+ return _this.off('dispose', removeListenerOnDispose);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ removeRemoverOnTargetDispose.guid = listener.guid;
+
+ listen(this, 'on', 'dispose', removeListenerOnDispose);
+ listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+ }
+ },
+
+
+ /**
+ * Add a listener to an event (or events) on this object or another evented
+ * object. The listener will only be called once and then removed.
+ *
+ * @param {string|Array|Element|Object} targetOrType
+ * If this is a string or array, it represents the event type(s)
+ * that will trigger the listener.
+ *
+ * Another evented object can be passed here instead, which will
+ * cause the listener to listen for events on _that_ object.
+ *
+ * In either case, the listener's `this` value will be bound to
+ * this object.
+ *
+ * @param {string|Array|Function} typeOrListener
+ * If the first argument was a string or array, this should be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function.
+ */
+ one: function one$$1() {
+ var _this2 = this;
+
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ var _normalizeListenArgs2 = normalizeListenArgs(this, args),
+ isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
+ target = _normalizeListenArgs2.target,
+ type = _normalizeListenArgs2.type,
+ listener = _normalizeListenArgs2.listener;
+
+ // Targeting this evented object.
+
+
+ if (isTargetingSelf) {
+ listen(target, 'one', type, listener);
+
+ // Targeting another evented object.
+ } else {
+ var wrapper = function wrapper() {
+ for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+ largs[_key3] = arguments[_key3];
+ }
+
+ _this2.off(target, type, wrapper);
+ listener.apply(null, largs);
+ };
+
+ // Use the same function ID as the listener so we can remove it later
+ // it using the ID of the original listener.
+ wrapper.guid = listener.guid;
+ listen(target, 'one', type, wrapper);
+ }
+ },
+
+
+ /**
+ * Removes listener(s) from event(s) on an evented object.
+ *
+ * @param {string|Array|Element|Object} [targetOrType]
+ * If this is a string or array, it represents the event type(s).
+ *
+ * Another evented object can be passed here instead, in which case
+ * ALL 3 arguments are _required_.
+ *
+ * @param {string|Array|Function} [typeOrListener]
+ * If the first argument was a string or array, this may be the
+ * listener function. Otherwise, this is a string or array of event
+ * type(s).
+ *
+ * @param {Function} [listener]
+ * If the first argument was another evented object, this will be
+ * the listener function; otherwise, _all_ listeners bound to the
+ * event type(s) will be removed.
+ */
+ off: function off$$1(targetOrType, typeOrListener, listener) {
+
+ // Targeting this evented object.
+ if (!targetOrType || isValidEventType(targetOrType)) {
+ off(this.eventBusEl_, targetOrType, typeOrListener);
+
+ // Targeting another evented object.
+ } else {
+ var target = targetOrType;
+ var type = typeOrListener;
+
+ // Fail fast and in a meaningful way!
+ validateTarget(target);
+ validateEventType(type);
+ validateListener(listener);
+
+ // Ensure there's at least a guid, even if the function hasn't been used
+ listener = bind(this, listener);
+
+ // Remove the dispose listener on this evented object, which was given
+ // the same guid as the event listener in on().
+ this.off('dispose', listener);
+
+ if (target.nodeName) {
+ off(target, type, listener);
+ off(target, 'dispose', listener);
+ } else if (isEvented(target)) {
+ target.off(type, listener);
+ target.off('dispose', listener);
+ }
+ }
+ },
+
+
+ /**
+ * Fire an event on this evented object, causing its listeners to be called.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash]
+ * An additional object to pass along to listeners.
+ *
+ * @returns {boolean}
+ * Whether or not the default behavior was prevented.
+ */
+ trigger: function trigger$$1(event, hash) {
+ return trigger(this.eventBusEl_, event, hash);
+ }
+ };
+
+ /**
+ * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+ *
+ * @param {Object} target
+ * The object to which to add event methods.
+ *
+ * @param {Object} [options={}]
+ * Options for customizing the mixin behavior.
+ *
+ * @param {String} [options.eventBusKey]
+ * By default, adds a `eventBusEl_` DOM element to the target object,
+ * which is used as an event bus. If the target object already has a
+ * DOM element that should be used, pass its key here.
+ *
+ * @return {Object}
+ * The target object.
+ */
+ function evented(target) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var eventBusKey = options.eventBusKey;
+
+ // Set or create the eventBusEl_.
+
+ if (eventBusKey) {
+ if (!target[eventBusKey].nodeName) {
+ throw new Error('The eventBusKey "' + eventBusKey + '" does not refer to an element.');
+ }
+ target.eventBusEl_ = target[eventBusKey];
+ } else {
+ target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });
+ }
+
+ assign(target, EventedMixin);
+
+ // When any evented object is disposed, it removes all its listeners.
+ target.on('dispose', function () {
+ target.off();
+ window_1.setTimeout(function () {
+ target.eventBusEl_ = null;
+ }, 0);
+ });
+
+ return target;
+ }
+
+ /**
+ * @file mixins/stateful.js
+ * @module stateful
+ */
+
+ /**
+ * Contains methods that provide statefulness to an object which is passed
+ * to {@link module:stateful}.
+ *
+ * @mixin StatefulMixin
+ */
+ var StatefulMixin = {
+
+ /**
+ * A hash containing arbitrary keys and values representing the state of
+ * the object.
+ *
+ * @type {Object}
+ */
+ state: {},
+
+ /**
+ * Set the state of an object by mutating its
+ * {@link module:stateful~StatefulMixin.state|state} object in place.
+ *
+ * @fires module:stateful~StatefulMixin#statechanged
+ * @param {Object|Function} stateUpdates
+ * A new set of properties to shallow-merge into the plugin state.
+ * Can be a plain object or a function returning a plain object.
+ *
+ * @returns {Object|undefined}
+ * An object containing changes that occurred. If no changes
+ * occurred, returns `undefined`.
+ */
+ setState: function setState(stateUpdates) {
+ var _this = this;
+
+ // Support providing the `stateUpdates` state as a function.
+ if (typeof stateUpdates === 'function') {
+ stateUpdates = stateUpdates();
+ }
+
+ var changes = void 0;
+
+ each(stateUpdates, function (value, key) {
+
+ // Record the change if the value is different from what's in the
+ // current state.
+ if (_this.state[key] !== value) {
+ changes = changes || {};
+ changes[key] = {
+ from: _this.state[key],
+ to: value
+ };
+ }
+
+ _this.state[key] = value;
+ });
+
+ // Only trigger "statechange" if there were changes AND we have a trigger
+ // function. This allows us to not require that the target object be an
+ // evented object.
+ if (changes && isEvented(this)) {
+
+ /**
+ * An event triggered on an object that is both
+ * {@link module:stateful|stateful} and {@link module:evented|evented}
+ * indicating that its state has changed.
+ *
+ * @event module:stateful~StatefulMixin#statechanged
+ * @type {Object}
+ * @property {Object} changes
+ * A hash containing the properties that were changed and
+ * the values they were changed `from` and `to`.
+ */
+ this.trigger({
+ changes: changes,
+ type: 'statechanged'
+ });
+ }
+
+ return changes;
+ }
+ };
+
+ /**
+ * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+ * object.
+ *
+ * If the target object is {@link module:evented|evented} and has a
+ * `handleStateChanged` method, that method will be automatically bound to the
+ * `statechanged` event on itself.
+ *
+ * @param {Object} target
+ * The object to be made stateful.
+ *
+ * @param {Object} [defaultState]
+ * A default set of properties to populate the newly-stateful object's
+ * `state` property.
+ *
+ * @returns {Object}
+ * Returns the `target`.
+ */
+ function stateful(target, defaultState) {
+ assign(target, StatefulMixin);
+
+ // This happens after the mixing-in because we need to replace the `state`
+ // added in that step.
+ target.state = assign({}, target.state, defaultState);
+
+ // Auto-bind the `handleStateChanged` method of the target object if it exists.
+ if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+ target.on('statechanged', target.handleStateChanged);
+ }
+
+ return target;
+ }
+
+ /**
+ * @file to-title-case.js
+ * @module to-title-case
+ */
+
+ /**
+ * Uppercase the first letter of a string.
+ *
+ * @param {string} string
+ * String to be uppercased
+ *
+ * @return {string}
+ * The string with an uppercased first letter
+ */
+ function toTitleCase(string) {
+ if (typeof string !== 'string') {
+ return string;
+ }
+
+ return string.charAt(0).toUpperCase() + string.slice(1);
+ }
+
+ /**
+ * Compares the TitleCase versions of the two strings for equality.
+ *
+ * @param {string} str1
+ * The first string to compare
+ *
+ * @param {string} str2
+ * The second string to compare
+ *
+ * @return {boolean}
+ * Whether the TitleCase versions of the strings are equal
+ */
+ function titleCaseEquals(str1, str2) {
+ return toTitleCase(str1) === toTitleCase(str2);
+ }
+
+ /**
+ * @file merge-options.js
+ * @module merge-options
+ */
+
+ /**
+ * Deep-merge one or more options objects, recursively merging **only** plain
+ * object properties.
+ *
+ * @param {Object[]} sources
+ * One or more objects to merge into a new object.
+ *
+ * @returns {Object}
+ * A new object that is the merged result of all sources.
+ */
+ function mergeOptions() {
+ var result = {};
+
+ for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+ sources[_key] = arguments[_key];
+ }
+
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+
+ each(source, function (value, key) {
+ if (!isPlain(value)) {
+ result[key] = value;
+ return;
+ }
+
+ if (!isPlain(result[key])) {
+ result[key] = {};
+ }
+
+ result[key] = mergeOptions(result[key], value);
+ });
+ });
+
+ return result;
+ }
+
+ /**
+ * Player Component - Base class for all UI objects
+ *
+ * @file component.js
+ */
+
+ /**
+ * Base class for all UI Components.
+ * Components are UI objects which represent both a javascript object and an element
+ * in the DOM. They can be children of other components, and can have
+ * children themselves.
+ *
+ * Components can also use methods from {@link EventTarget}
+ */
+
+ var Component = function () {
+
+ /**
+ * A callback that is called when a component is ready. Does not have any
+ * paramters and any callback value will be ignored.
+ *
+ * @callback Component~ReadyCallback
+ * @this Component
+ */
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Object[]} [options.children]
+ * An array of children objects to intialize this component with. Children objects have
+ * a name property that will be used if more than one component of the same type needs to be
+ * added.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Function that gets called when the `Component` is ready.
+ */
+ function Component(player, options, ready) {
+ classCallCheck(this, Component);
+
+
+ // The component might be the player itself and we can't pass `this` to super
+ if (!player && this.play) {
+ this.player_ = player = this; // eslint-disable-line
+ } else {
+ this.player_ = player;
+ }
+
+ // Make a copy of prototype.options_ to protect against overriding defaults
+ this.options_ = mergeOptions({}, this.options_);
+
+ // Updated options with supplied options
+ options = this.options_ = mergeOptions(this.options_, options);
+
+ // Get ID from options or options element if one is supplied
+ this.id_ = options.id || options.el && options.el.id;
+
+ // If there was no ID from the options, generate one
+ if (!this.id_) {
+ // Don't require the player ID function in the case of mock players
+ var id = player && player.id && player.id() || 'no_player';
+
+ this.id_ = id + '_component_' + newGUID();
+ }
+
+ this.name_ = options.name || null;
+
+ // Create element if one wasn't provided in options
+ if (options.el) {
+ this.el_ = options.el;
+ } else if (options.createEl !== false) {
+ this.el_ = this.createEl();
+ }
+
+ // if evented is anything except false, we want to mixin in evented
+ if (options.evented !== false) {
+ // Make this an evented object and use `el_`, if available, as its event bus
+ evented(this, { eventBusKey: this.el_ ? 'el_' : null });
+ }
+ stateful(this, this.constructor.defaultState);
+
+ this.children_ = [];
+ this.childIndex_ = {};
+ this.childNameIndex_ = {};
+
+ // Add any child components in options
+ if (options.initChildren !== false) {
+ this.initChildren();
+ }
+
+ this.ready(ready);
+ // Don't want to trigger ready here or it will before init is actually
+ // finished for all children that run this constructor
+
+ if (options.reportTouchActivity !== false) {
+ this.enableTouchActivity();
+ }
+ }
+
+ /**
+ * Dispose of the `Component` and all child components.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Component.prototype.dispose = function dispose() {
+
+ /**
+ * Triggered when a `Component` is disposed.
+ *
+ * @event Component#dispose
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up
+ */
+ this.trigger({ type: 'dispose', bubbles: false });
+
+ // Dispose all children.
+ if (this.children_) {
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i].dispose) {
+ this.children_[i].dispose();
+ }
+ }
+ }
+
+ // Delete child references
+ this.children_ = null;
+ this.childIndex_ = null;
+ this.childNameIndex_ = null;
+
+ if (this.el_) {
+ // Remove element from DOM
+ if (this.el_.parentNode) {
+ this.el_.parentNode.removeChild(this.el_);
+ }
+
+ removeData(this.el_);
+ this.el_ = null;
+ }
+
+ // remove reference to the player after disposing of the element
+ this.player_ = null;
+ };
+
+ /**
+ * Return the {@link Player} that the `Component` has attached to.
+ *
+ * @return {Player}
+ * The player that this `Component` has attached to.
+ */
+
+
+ Component.prototype.player = function player() {
+ return this.player_;
+ };
+
+ /**
+ * Deep merge of options objects with new options.
+ * > Note: When both `obj` and `options` contain properties whose values are objects.
+ * The two properties get merged using {@link module:mergeOptions}
+ *
+ * @param {Object} obj
+ * The object that contains new options.
+ *
+ * @return {Object}
+ * A new object of `this.options_` and `obj` merged together.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Component.prototype.options = function options(obj) {
+ log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');
+
+ if (!obj) {
+ return this.options_;
+ }
+
+ this.options_ = mergeOptions(this.options_, obj);
+ return this.options_;
+ };
+
+ /**
+ * Get the `Component`s DOM element
+ *
+ * @return {Element}
+ * The DOM element for this `Component`.
+ */
+
+
+ Component.prototype.el = function el() {
+ return this.el_;
+ };
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tagName]
+ * Element's DOM node type. e.g. 'div'
+ *
+ * @param {Object} [properties]
+ * An object of properties that should be set.
+ *
+ * @param {Object} [attributes]
+ * An object of attributes that should be set.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {
+ return createEl(tagName, properties, attributes);
+ };
+
+ /**
+ * Localize a string given the string in english.
+ *
+ * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+ * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+ *
+ * If a `defaultValue` is provided, it'll use that over `string`,
+ * if a value isn't found in provided language files.
+ * This is useful if you want to have a descriptive key for token replacement
+ * but have a succinct localized string and not require `en.json` to be included.
+ *
+ * Currently, it is used for the progress bar timing.
+ * ```js
+ * {
+ * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+ * }
+ * ```
+ * It is then used like so:
+ * ```js
+ * this.localize('progress bar timing: currentTime={1} duration{2}',
+ * [this.player_.currentTime(), this.player_.duration()],
+ * '{1} of {2}');
+ * ```
+ *
+ * Which outputs something like: `01:23 of 24:56`.
+ *
+ *
+ * @param {string} string
+ * The string to localize and the key to lookup in the language files.
+ * @param {string[]} [tokens]
+ * If the current item has token replacements, provide the tokens here.
+ * @param {string} [defaultValue]
+ * Defaults to `string`. Can be a default value to use for token replacement
+ * if the lookup key is needed to be separate.
+ *
+ * @return {string}
+ * The localized string or if no localization exists the english string.
+ */
+
+
+ Component.prototype.localize = function localize(string, tokens) {
+ var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;
+
+ var code = this.player_.language && this.player_.language();
+ var languages = this.player_.languages && this.player_.languages();
+ var language = languages && languages[code];
+ var primaryCode = code && code.split('-')[0];
+ var primaryLang = languages && languages[primaryCode];
+
+ var localizedString = defaultValue;
+
+ if (language && language[string]) {
+ localizedString = language[string];
+ } else if (primaryLang && primaryLang[string]) {
+ localizedString = primaryLang[string];
+ }
+
+ if (tokens) {
+ localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+ var value = tokens[index - 1];
+ var ret = value;
+
+ if (typeof value === 'undefined') {
+ ret = match;
+ }
+
+ return ret;
+ });
+ }
+
+ return localizedString;
+ };
+
+ /**
+ * Return the `Component`s DOM element. This is where children get inserted.
+ * This will usually be the the same as the element returned in {@link Component#el}.
+ *
+ * @return {Element}
+ * The content element for this `Component`.
+ */
+
+
+ Component.prototype.contentEl = function contentEl() {
+ return this.contentEl_ || this.el_;
+ };
+
+ /**
+ * Get this `Component`s ID
+ *
+ * @return {string}
+ * The id of this `Component`
+ */
+
+
+ Component.prototype.id = function id() {
+ return this.id_;
+ };
+
+ /**
+ * Get the `Component`s name. The name gets used to reference the `Component`
+ * and is set during registration.
+ *
+ * @return {string}
+ * The name of this `Component`.
+ */
+
+
+ Component.prototype.name = function name() {
+ return this.name_;
+ };
+
+ /**
+ * Get an array of all child components
+ *
+ * @return {Array}
+ * The children
+ */
+
+
+ Component.prototype.children = function children() {
+ return this.children_;
+ };
+
+ /**
+ * Returns the child `Component` with the given `id`.
+ *
+ * @param {string} id
+ * The id of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `id` or undefined.
+ */
+
+
+ Component.prototype.getChildById = function getChildById(id) {
+ return this.childIndex_[id];
+ };
+
+ /**
+ * Returns the child `Component` with the given `name`.
+ *
+ * @param {string} name
+ * The name of the child `Component` to get.
+ *
+ * @return {Component|undefined}
+ * The child `Component` with the given `name` or undefined.
+ */
+
+
+ Component.prototype.getChild = function getChild(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ return this.childNameIndex_[name];
+ };
+
+ /**
+ * Add a child `Component` inside the current `Component`.
+ *
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @param {number} [index=this.children_.length]
+ * The index to attempt to add a child into.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ */
+
+
+ Component.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;
+
+ var component = void 0;
+ var componentName = void 0;
+
+ // If child is a string, create component with options
+ if (typeof child === 'string') {
+ componentName = toTitleCase(child);
+
+ var componentClassName = options.componentClass || componentName;
+
+ // Set name through options
+ options.name = componentName;
+
+ // Create a new object & element for this controls set
+ // If there's no .player_, this is a player
+ var ComponentClass = Component.getComponent(componentClassName);
+
+ if (!ComponentClass) {
+ throw new Error('Component ' + componentClassName + ' does not exist');
+ }
+
+ // data stored directly on the videojs object may be
+ // misidentified as a component to retain
+ // backwards-compatibility with 4.x. check to make sure the
+ // component class can be instantiated.
+ if (typeof ComponentClass !== 'function') {
+ return null;
+ }
+
+ component = new ComponentClass(this.player_ || this, options);
+
+ // child is a component instance
+ } else {
+ component = child;
+ }
+
+ this.children_.splice(index, 0, component);
+
+ if (typeof component.id === 'function') {
+ this.childIndex_[component.id()] = component;
+ }
+
+ // If a name wasn't used to create the component, check if we can use the
+ // name function of the component
+ componentName = componentName || component.name && toTitleCase(component.name());
+
+ if (componentName) {
+ this.childNameIndex_[componentName] = component;
+ }
+
+ // Add the UI object's element to the container div (box)
+ // Having an element is not required
+ if (typeof component.el === 'function' && component.el()) {
+ var childNodes = this.contentEl().children;
+ var refNode = childNodes[index] || null;
+
+ this.contentEl().insertBefore(component.el(), refNode);
+ }
+
+ // Return so it can stored on parent object if desired.
+ return component;
+ };
+
+ /**
+ * Remove a child `Component` from this `Component`s list of children. Also removes
+ * the child `Component`s element from this `Component`s element.
+ *
+ * @param {Component} component
+ * The child `Component` to remove.
+ */
+
+
+ Component.prototype.removeChild = function removeChild(component) {
+ if (typeof component === 'string') {
+ component = this.getChild(component);
+ }
+
+ if (!component || !this.children_) {
+ return;
+ }
+
+ var childFound = false;
+
+ for (var i = this.children_.length - 1; i >= 0; i--) {
+ if (this.children_[i] === component) {
+ childFound = true;
+ this.children_.splice(i, 1);
+ break;
+ }
+ }
+
+ if (!childFound) {
+ return;
+ }
+
+ this.childIndex_[component.id()] = null;
+ this.childNameIndex_[component.name()] = null;
+
+ var compEl = component.el();
+
+ if (compEl && compEl.parentNode === this.contentEl()) {
+ this.contentEl().removeChild(component.el());
+ }
+ };
+
+ /**
+ * Add and initialize default child `Component`s based upon options.
+ */
+
+
+ Component.prototype.initChildren = function initChildren() {
+ var _this = this;
+
+ var children = this.options_.children;
+
+ if (children) {
+ // `this` is `parent`
+ var parentOptions = this.options_;
+
+ var handleAdd = function handleAdd(child) {
+ var name = child.name;
+ var opts = child.opts;
+
+ // Allow options for children to be set at the parent options
+ // e.g. videojs(id, { controlBar: false });
+ // instead of videojs(id, { children: { controlBar: false });
+ if (parentOptions[name] !== undefined) {
+ opts = parentOptions[name];
+ }
+
+ // Allow for disabling default components
+ // e.g. options['children']['posterImage'] = false
+ if (opts === false) {
+ return;
+ }
+
+ // Allow options to be passed as a simple boolean if no configuration
+ // is necessary.
+ if (opts === true) {
+ opts = {};
+ }
+
+ // We also want to pass the original player options
+ // to each component as well so they don't need to
+ // reach back into the player for options later.
+ opts.playerOptions = _this.options_.playerOptions;
+
+ // Create and add the child component.
+ // Add a direct reference to the child by name on the parent instance.
+ // If two of the same component are used, different names should be supplied
+ // for each
+ var newChild = _this.addChild(name, opts);
+
+ if (newChild) {
+ _this[name] = newChild;
+ }
+ };
+
+ // Allow for an array of children details to passed in the options
+ var workingChildren = void 0;
+ var Tech = Component.getComponent('Tech');
+
+ if (Array.isArray(children)) {
+ workingChildren = children;
+ } else {
+ workingChildren = Object.keys(children);
+ }
+
+ workingChildren
+ // children that are in this.options_ but also in workingChildren would
+ // give us extra children we do not want. So, we want to filter them out.
+ .concat(Object.keys(this.options_).filter(function (child) {
+ return !workingChildren.some(function (wchild) {
+ if (typeof wchild === 'string') {
+ return child === wchild;
+ }
+ return child === wchild.name;
+ });
+ })).map(function (child) {
+ var name = void 0;
+ var opts = void 0;
+
+ if (typeof child === 'string') {
+ name = child;
+ opts = children[name] || _this.options_[name] || {};
+ } else {
+ name = child.name;
+ opts = child;
+ }
+
+ return { name: name, opts: opts };
+ }).filter(function (child) {
+ // we have to make sure that child.name isn't in the techOrder since
+ // techs are registerd as Components but can't aren't compatible
+ // See https://github.com/videojs/video.js/issues/2772
+ var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));
+
+ return c && !Tech.isTech(c);
+ }).forEach(handleAdd);
+ }
+ };
+
+ /**
+ * Builds the default DOM class name. Should be overriden by sub-components.
+ *
+ * @return {string}
+ * The DOM class name for this object.
+ *
+ * @abstract
+ */
+
+
+ Component.prototype.buildCSSClass = function buildCSSClass() {
+ // Child classes can include a function that does:
+ // return 'CLASS NAME' + this._super();
+ return '';
+ };
+
+ /**
+ * Bind a listener to the component's ready state.
+ * Different from event listeners in that if the ready event has already happened
+ * it will trigger the function immediately.
+ *
+ * @return {Component}
+ * Returns itself; method can be chained.
+ */
+
+
+ Component.prototype.ready = function ready(fn) {
+ var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!fn) {
+ return;
+ }
+
+ if (!this.isReady_) {
+ this.readyQueue_ = this.readyQueue_ || [];
+ this.readyQueue_.push(fn);
+ return;
+ }
+
+ if (sync) {
+ fn.call(this);
+ } else {
+ // Call the function asynchronously by default for consistency
+ this.setTimeout(fn, 1);
+ }
+ };
+
+ /**
+ * Trigger all the ready listeners for this `Component`.
+ *
+ * @fires Component#ready
+ */
+
+
+ Component.prototype.triggerReady = function triggerReady() {
+ this.isReady_ = true;
+
+ // Ensure ready is triggered asynchronously
+ this.setTimeout(function () {
+ var readyQueue = this.readyQueue_;
+
+ // Reset Ready Queue
+ this.readyQueue_ = [];
+
+ if (readyQueue && readyQueue.length > 0) {
+ readyQueue.forEach(function (fn) {
+ fn.call(this);
+ }, this);
+ }
+
+ // Allow for using event listeners also
+ /**
+ * Triggered when a `Component` is ready.
+ *
+ * @event Component#ready
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ready');
+ }, 1);
+ };
+
+ /**
+ * Find a single DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelector`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {Element|null}
+ * the dom element that was found, or null
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$ = function $$$1(selector, context) {
+ return $(selector, context || this.contentEl());
+ };
+
+ /**
+ * Finds all DOM element matching a `selector`. This can be within the `Component`s
+ * `contentEl()` or another custom context.
+ *
+ * @param {string} selector
+ * A valid CSS selector, which will be passed to `querySelectorAll`.
+ *
+ * @param {Element|string} [context=this.contentEl()]
+ * A DOM element within which to query. Can also be a selector string in
+ * which case the first matching element will get used as context. If
+ * missing `this.contentEl()` gets used. If `this.contentEl()` returns
+ * nothing it falls back to `document`.
+ *
+ * @return {NodeList}
+ * a list of dom elements that were found
+ *
+ * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+ */
+
+
+ Component.prototype.$$ = function $$$$1(selector, context) {
+ return $$(selector, context || this.contentEl());
+ };
+
+ /**
+ * Check if a component's element has a CSS class name.
+ *
+ * @param {string} classToCheck
+ * CSS class name to check.
+ *
+ * @return {boolean}
+ * - True if the `Component` has the class.
+ * - False if the `Component` does not have the class`
+ */
+
+
+ Component.prototype.hasClass = function hasClass$$1(classToCheck) {
+ return hasClass(this.el_, classToCheck);
+ };
+
+ /**
+ * Add a CSS class name to the `Component`s element.
+ *
+ * @param {string} classToAdd
+ * CSS class name to add
+ */
+
+
+ Component.prototype.addClass = function addClass$$1(classToAdd) {
+ addClass(this.el_, classToAdd);
+ };
+
+ /**
+ * Remove a CSS class name from the `Component`s element.
+ *
+ * @param {string} classToRemove
+ * CSS class name to remove
+ */
+
+
+ Component.prototype.removeClass = function removeClass$$1(classToRemove) {
+ removeClass(this.el_, classToRemove);
+ };
+
+ /**
+ * Add or remove a CSS class name from the component's element.
+ * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+ * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+ *
+ * @param {string} classToToggle
+ * The class to add or remove based on (@link Component#hasClass}
+ *
+ * @param {boolean|Dom~predicate} [predicate]
+ * An {@link Dom~predicate} function or a boolean
+ */
+
+
+ Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {
+ toggleClass(this.el_, classToToggle, predicate);
+ };
+
+ /**
+ * Show the `Component`s element if it is hidden by removing the
+ * 'vjs-hidden' class name from it.
+ */
+
+
+ Component.prototype.show = function show() {
+ this.removeClass('vjs-hidden');
+ };
+
+ /**
+ * Hide the `Component`s element if it is currently showing by adding the
+ * 'vjs-hidden` class name to it.
+ */
+
+
+ Component.prototype.hide = function hide() {
+ this.addClass('vjs-hidden');
+ };
+
+ /**
+ * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+ * class name to it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.lockShowing = function lockShowing() {
+ this.addClass('vjs-lock-showing');
+ };
+
+ /**
+ * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+ * class name from it. Used during fadeIn/fadeOut.
+ *
+ * @private
+ */
+
+
+ Component.prototype.unlockShowing = function unlockShowing() {
+ this.removeClass('vjs-lock-showing');
+ };
+
+ /**
+ * Get the value of an attribute on the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to get the value from.
+ *
+ * @return {string|null}
+ * - The value of the attribute that was asked for.
+ * - Can be an empty string on some browsers if the attribute does not exist
+ * or has no value
+ * - Most browsers will return null if the attibute does not exist or has
+ * no value.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+ */
+
+
+ Component.prototype.getAttribute = function getAttribute$$1(attribute) {
+ return getAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Set the value of an attribute on the `Component`'s element
+ *
+ * @param {string} attribute
+ * Name of the attribute to set.
+ *
+ * @param {string} value
+ * Value to set the attribute to.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+ */
+
+
+ Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {
+ setAttribute(this.el_, attribute, value);
+ };
+
+ /**
+ * Remove an attribute from the `Component`s element.
+ *
+ * @param {string} attribute
+ * Name of the attribute to remove.
+ *
+ * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+ */
+
+
+ Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {
+ removeAttribute(this.el_, attribute);
+ };
+
+ /**
+ * Get or set the width of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The width that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.width = function width(num, skipListeners) {
+ return this.dimension('width', num, skipListeners);
+ };
+
+ /**
+ * Get or set the height of the component based upon the CSS styles.
+ * See {@link Component#dimension} for more detailed information.
+ *
+ * @param {number|string} [num]
+ * The height that you want to set postfixed with '%', 'px' or nothing.
+ *
+ * @param {boolean} [skipListeners]
+ * Skip the componentresize event trigger
+ *
+ * @return {number|string}
+ * The width when getting, zero if there is no width. Can be a string
+ * postpixed with '%' or 'px'.
+ */
+
+
+ Component.prototype.height = function height(num, skipListeners) {
+ return this.dimension('height', num, skipListeners);
+ };
+
+ /**
+ * Set both the width and height of the `Component` element at the same time.
+ *
+ * @param {number|string} width
+ * Width to set the `Component`s element to.
+ *
+ * @param {number|string} height
+ * Height to set the `Component`s element to.
+ */
+
+
+ Component.prototype.dimensions = function dimensions(width, height) {
+ // Skip componentresize listeners on width for optimization
+ this.width(width, true);
+ this.height(height);
+ };
+
+ /**
+ * Get or set width or height of the `Component` element. This is the shared code
+ * for the {@link Component#width} and {@link Component#height}.
+ *
+ * Things to know:
+ * - If the width or height in an number this will return the number postfixed with 'px'.
+ * - If the width/height is a percent this will return the percent postfixed with '%'
+ * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+ * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+ * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+ * for more information
+ * - If you want the computed style of the component, use {@link Component#currentWidth}
+ * and {@link {Component#currentHeight}
+ *
+ * @fires Component#componentresize
+ *
+ * @param {string} widthOrHeight
+ 8 'width' or 'height'
+ *
+ * @param {number|string} [num]
+ 8 New dimension
+ *
+ * @param {boolean} [skipListeners]
+ * Skip componentresize event trigger
+ *
+ * @return {number}
+ * The dimension when getting or 0 if unset
+ */
+
+
+ Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {
+ if (num !== undefined) {
+ // Set to zero if null or literally NaN (NaN !== NaN)
+ if (num === null || num !== num) {
+ num = 0;
+ }
+
+ // Check if using css width/height (% or px) and adjust
+ if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+ this.el_.style[widthOrHeight] = num;
+ } else if (num === 'auto') {
+ this.el_.style[widthOrHeight] = '';
+ } else {
+ this.el_.style[widthOrHeight] = num + 'px';
+ }
+
+ // skipListeners allows us to avoid triggering the resize event when setting both width and height
+ if (!skipListeners) {
+ /**
+ * Triggered when a component is resized.
+ *
+ * @event Component#componentresize
+ * @type {EventTarget~Event}
+ */
+ this.trigger('componentresize');
+ }
+
+ return;
+ }
+
+ // Not setting a value, so getting it
+ // Make sure element exists
+ if (!this.el_) {
+ return 0;
+ }
+
+ // Get dimension value from style
+ var val = this.el_.style[widthOrHeight];
+ var pxIndex = val.indexOf('px');
+
+ if (pxIndex !== -1) {
+ // Return the pixel value with no 'px'
+ return parseInt(val.slice(0, pxIndex), 10);
+ }
+
+ // No px so using % or no style was set, so falling back to offsetWidth/height
+ // If component has display:none, offset will return 0
+ // TODO: handle display:none and no dimension style using px
+ return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);
+ };
+
+ /**
+ * Get the width or the height of the `Component` elements computed style. Uses
+ * `window.getComputedStyle`.
+ *
+ * @param {string} widthOrHeight
+ * A string containing 'width' or 'height'. Whichever one you want to get.
+ *
+ * @return {number}
+ * The dimension that gets asked for or 0 if nothing was set
+ * for that dimension.
+ */
+
+
+ Component.prototype.currentDimension = function currentDimension(widthOrHeight) {
+ var computedWidthOrHeight = 0;
+
+ if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+ throw new Error('currentDimension only accepts width or height value');
+ }
+
+ if (typeof window_1.getComputedStyle === 'function') {
+ var computedStyle = window_1.getComputedStyle(this.el_);
+
+ computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];
+ }
+
+ // remove 'px' from variable and parse as integer
+ computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+ // if the computed value is still 0, it's possible that the browser is lying
+ // and we want to check the offset values.
+ // This code also runs wherever getComputedStyle doesn't exist.
+ if (computedWidthOrHeight === 0) {
+ var rule = 'offset' + toTitleCase(widthOrHeight);
+
+ computedWidthOrHeight = this.el_[rule];
+ }
+
+ return computedWidthOrHeight;
+ };
+
+ /**
+ * An object that contains width and height values of the `Component`s
+ * computed style. Uses `window.getComputedStyle`.
+ *
+ * @typedef {Object} Component~DimensionObject
+ *
+ * @property {number} width
+ * The width of the `Component`s computed style.
+ *
+ * @property {number} height
+ * The height of the `Component`s computed style.
+ */
+
+ /**
+ * Get an object that contains width and height values of the `Component`s
+ * computed style.
+ *
+ * @return {Component~DimensionObject}
+ * The dimensions of the components element
+ */
+
+
+ Component.prototype.currentDimensions = function currentDimensions() {
+ return {
+ width: this.currentDimension('width'),
+ height: this.currentDimension('height')
+ };
+ };
+
+ /**
+ * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} width
+ * The width of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentWidth = function currentWidth() {
+ return this.currentDimension('width');
+ };
+
+ /**
+ * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.
+ *
+ * @return {number} height
+ * The height of the `Component`s computed style.
+ */
+
+
+ Component.prototype.currentHeight = function currentHeight() {
+ return this.currentDimension('height');
+ };
+
+ /**
+ * Set the focus to this component
+ */
+
+
+ Component.prototype.focus = function focus() {
+ this.el_.focus();
+ };
+
+ /**
+ * Remove the focus from this component
+ */
+
+
+ Component.prototype.blur = function blur() {
+ this.el_.blur();
+ };
+
+ /**
+ * Emit a 'tap' events when touch event support gets detected. This gets used to
+ * support toggling the controls through a tap on the video. They get enabled
+ * because every sub-component would have extra overhead otherwise.
+ *
+ * @private
+ * @fires Component#tap
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchleave
+ * @listens Component#touchcancel
+ * @listens Component#touchend
+ */
+
+
+ Component.prototype.emitTapEvents = function emitTapEvents() {
+ // Track the start time so we can determine how long the touch lasted
+ var touchStart = 0;
+ var firstTouch = null;
+
+ // Maximum movement allowed during a touch event to still be considered a tap
+ // Other popular libs use anywhere from 2 (hammer.js) to 15,
+ // so 10 seems like a nice, round number.
+ var tapMovementThreshold = 10;
+
+ // The maximum length a touch can be while still being considered a tap
+ var touchTimeThreshold = 200;
+
+ var couldBeTap = void 0;
+
+ this.on('touchstart', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length === 1) {
+ // Copy pageX/pageY from the object
+ firstTouch = {
+ pageX: event.touches[0].pageX,
+ pageY: event.touches[0].pageY
+ };
+ // Record start time so we can detect a tap vs. "touch and hold"
+ touchStart = new Date().getTime();
+ // Reset couldBeTap tracking
+ couldBeTap = true;
+ }
+ });
+
+ this.on('touchmove', function (event) {
+ // If more than one finger, don't consider treating this as a click
+ if (event.touches.length > 1) {
+ couldBeTap = false;
+ } else if (firstTouch) {
+ // Some devices will throw touchmoves for all but the slightest of taps.
+ // So, if we moved only a small distance, this could still be a tap
+ var xdiff = event.touches[0].pageX - firstTouch.pageX;
+ var ydiff = event.touches[0].pageY - firstTouch.pageY;
+ var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+
+ if (touchDistance > tapMovementThreshold) {
+ couldBeTap = false;
+ }
+ }
+ });
+
+ var noTap = function noTap() {
+ couldBeTap = false;
+ };
+
+ // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+ this.on('touchleave', noTap);
+ this.on('touchcancel', noTap);
+
+ // When the touch ends, measure how long it took and trigger the appropriate
+ // event
+ this.on('touchend', function (event) {
+ firstTouch = null;
+ // Proceed only if the touchmove/leave/cancel event didn't happen
+ if (couldBeTap === true) {
+ // Measure how long the touch lasted
+ var touchTime = new Date().getTime() - touchStart;
+
+ // Make sure the touch was less than the threshold to be considered a tap
+ if (touchTime < touchTimeThreshold) {
+ // Don't let browser turn this into a click
+ event.preventDefault();
+ /**
+ * Triggered when a `Component` is tapped.
+ *
+ * @event Component#tap
+ * @type {EventTarget~Event}
+ */
+ this.trigger('tap');
+ // It may be good to copy the touchend event object and change the
+ // type to tap, if the other event properties aren't exact after
+ // Events.fixEvent runs (e.g. event.target)
+ }
+ }
+ });
+ };
+
+ /**
+ * This function reports user activity whenever touch events happen. This can get
+ * turned off by any sub-components that wants touch events to act another way.
+ *
+ * Report user touch activity when touch events occur. User activity gets used to
+ * determine when controls should show/hide. It is simple when it comes to mouse
+ * events, because any mouse event should show the controls. So we capture mouse
+ * events that bubble up to the player and report activity when that happens.
+ * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+ * controls. So touch events can't help us at the player level either.
+ *
+ * User activity gets checked asynchronously. So what could happen is a tap event
+ * on the video turns the controls off. Then the `touchend` event bubbles up to
+ * the player. Which, if it reported user activity, would turn the controls right
+ * back on. We also don't want to completely block touch events from bubbling up.
+ * Furthermore a `touchmove` event and anything other than a tap, should not turn
+ * controls back on.
+ *
+ * @listens Component#touchstart
+ * @listens Component#touchmove
+ * @listens Component#touchend
+ * @listens Component#touchcancel
+ */
+
+
+ Component.prototype.enableTouchActivity = function enableTouchActivity() {
+ // Don't continue if the root player doesn't support reporting user activity
+ if (!this.player() || !this.player().reportUserActivity) {
+ return;
+ }
+
+ // listener for reporting that the user is active
+ var report = bind(this.player(), this.player().reportUserActivity);
+
+ var touchHolding = void 0;
+
+ this.on('touchstart', function () {
+ report();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(touchHolding);
+ // report at the same interval as activityCheck
+ touchHolding = this.setInterval(report, 250);
+ });
+
+ var touchEnd = function touchEnd(event) {
+ report();
+ // stop the interval that maintains activity if the touch is holding
+ this.clearInterval(touchHolding);
+ };
+
+ this.on('touchmove', report);
+ this.on('touchend', touchEnd);
+ this.on('touchcancel', touchEnd);
+ };
+
+ /**
+ * A callback that has no parameters and is bound into `Component`s context.
+ *
+ * @callback Component~GenericCallback
+ * @this Component
+ */
+
+ /**
+ * Creates a function that runs after an `x` millisecond timeout. This function is a
+ * wrapper around `window.setTimeout`. There are a few reasons to use this one
+ * instead though:
+ * 1. It gets cleared via {@link Component#clearTimeout} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+ *
+ * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+ * will cause its dispose listener not to get cleaned up! Please use
+ * {@link Component#clearTimeout} or {@link Component#dispose} instead.
+ *
+ * @param {Component~GenericCallback} fn
+ * The function that will be run after `timeout`.
+ *
+ * @param {number} timeout
+ * Timeout in milliseconds to delay before executing the specified function.
+ *
+ * @return {number}
+ * Returns a timeout ID that gets used to identify the timeout. It can also
+ * get used in {@link Component#clearTimeout} to clear the timeout that
+ * was set.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+ */
+
+
+ Component.prototype.setTimeout = function setTimeout(fn, timeout) {
+ var _this2 = this;
+
+ // declare as variables so they are properly available in timeout function
+ // eslint-disable-next-line
+ var timeoutId, disposeFn;
+
+ fn = bind(this, fn);
+
+ timeoutId = window_1.setTimeout(function () {
+ _this2.off('dispose', disposeFn);
+ fn();
+ }, timeout);
+
+ disposeFn = function disposeFn() {
+ return _this2.clearTimeout(timeoutId);
+ };
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.on('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Clears a timeout that gets created via `window.setTimeout` or
+ * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+ * use this function instead of `window.clearTimout`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} timeoutId
+ * The id of the timeout to clear. The return value of
+ * {@link Component#setTimeout} or `window.setTimeout`.
+ *
+ * @return {number}
+ * Returns the timeout id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+ */
+
+
+ Component.prototype.clearTimeout = function clearTimeout(timeoutId) {
+ window_1.clearTimeout(timeoutId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-timeout-' + timeoutId;
+
+ this.off('dispose', disposeFn);
+
+ return timeoutId;
+ };
+
+ /**
+ * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+ * around `window.setInterval`. There are a few reasons to use this one instead though.
+ * 1. It gets cleared via {@link Component#clearInterval} when
+ * {@link Component#dispose} gets called.
+ * 2. The function callback will be a {@link Component~GenericCallback}
+ *
+ * @param {Component~GenericCallback} fn
+ * The function to run every `x` seconds.
+ *
+ * @param {number} interval
+ * Execute the specified function every `x` milliseconds.
+ *
+ * @return {number}
+ * Returns an id that can be used to identify the interval. It can also be be used in
+ * {@link Component#clearInterval} to clear the interval.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+ */
+
+
+ Component.prototype.setInterval = function setInterval(fn, interval) {
+ var _this3 = this;
+
+ fn = bind(this, fn);
+
+ var intervalId = window_1.setInterval(fn, interval);
+
+ var disposeFn = function disposeFn() {
+ return _this3.clearInterval(intervalId);
+ };
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.on('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Clears an interval that gets created via `window.setInterval` or
+ * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
+ * use this function instead of `window.clearInterval`. If you don't your dispose
+ * listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} intervalId
+ * The id of the interval to clear. The return value of
+ * {@link Component#setInterval} or `window.setInterval`.
+ *
+ * @return {number}
+ * Returns the interval id that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+ */
+
+
+ Component.prototype.clearInterval = function clearInterval(intervalId) {
+ window_1.clearInterval(intervalId);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-interval-' + intervalId;
+
+ this.off('dispose', disposeFn);
+
+ return intervalId;
+ };
+
+ /**
+ * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+ * with a few extra bonuses:
+ *
+ * - Supports browsers that do not support rAF by falling back to
+ * {@link Component#setTimeout}.
+ *
+ * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+ * bound to the component).
+ *
+ * - Automatic cancellation of the rAF callback is handled if the component
+ * is disposed before it is called.
+ *
+ * @param {Component~GenericCallback} fn
+ * A function that will be bound to this component and executed just
+ * before the browser's next repaint.
+ *
+ * @return {number}
+ * Returns an rAF ID that gets used to identify the timeout. It can
+ * also be used in {@link Component#cancelAnimationFrame} to cancel
+ * the animation frame callback.
+ *
+ * @listens Component#dispose
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+ */
+
+
+ Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {
+ var _this4 = this;
+
+ // declare as variables so they are properly available in rAF function
+ // eslint-disable-next-line
+ var id, disposeFn;
+
+ if (this.supportsRaf_) {
+ fn = bind(this, fn);
+
+ id = window_1.requestAnimationFrame(function () {
+ _this4.off('dispose', disposeFn);
+ fn();
+ });
+
+ disposeFn = function disposeFn() {
+ return _this4.cancelAnimationFrame(id);
+ };
+
+ disposeFn.guid = 'vjs-raf-' + id;
+ this.on('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.setTimeout(fn, 1000 / 60);
+ };
+
+ /**
+ * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+ * (rAF).
+ *
+ * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+ * use this function instead of `window.cancelAnimationFrame`. If you don't,
+ * your dispose listener will not get cleaned up until {@link Component#dispose}!
+ *
+ * @param {number} id
+ * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+ *
+ * @return {number}
+ * Returns the rAF ID that was cleared.
+ *
+ * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+ */
+
+
+ Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {
+ if (this.supportsRaf_) {
+ window_1.cancelAnimationFrame(id);
+
+ var disposeFn = function disposeFn() {};
+
+ disposeFn.guid = 'vjs-raf-' + id;
+
+ this.off('dispose', disposeFn);
+
+ return id;
+ }
+
+ // Fall back to using a timer.
+ return this.clearTimeout(id);
+ };
+
+ /**
+ * Register a `Component` with `videojs` given the name and the component.
+ *
+ * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+ * should be registered using {@link Tech.registerTech} or
+ * {@link videojs:videojs.registerTech}.
+ *
+ * > NOTE: This function can also be seen on videojs as
+ * {@link videojs:videojs.registerComponent}.
+ *
+ * @param {string} name
+ * The name of the `Component` to register.
+ *
+ * @param {Component} ComponentToRegister
+ * The `Component` class to register.
+ *
+ * @return {Component}
+ * The `Component` that was registered.
+ */
+
+
+ Component.registerComponent = function registerComponent(name, ComponentToRegister) {
+ if (typeof name !== 'string' || !name) {
+ throw new Error('Illegal component name, "' + name + '"; must be a non-empty string.');
+ }
+
+ var Tech = Component.getComponent('Tech');
+
+ // We need to make sure this check is only done if Tech has been registered.
+ var isTech = Tech && Tech.isTech(ComponentToRegister);
+ var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
+
+ if (isTech || !isComp) {
+ var reason = void 0;
+
+ if (isTech) {
+ reason = 'techs must be registered using Tech.registerTech()';
+ } else {
+ reason = 'must be a Component subclass';
+ }
+
+ throw new Error('Illegal component, "' + name + '"; ' + reason + '.');
+ }
+
+ name = toTitleCase(name);
+
+ if (!Component.components_) {
+ Component.components_ = {};
+ }
+
+ var Player = Component.getComponent('Player');
+
+ if (name === 'Player' && Player && Player.players) {
+ var players = Player.players;
+ var playerNames = Object.keys(players);
+
+ // If we have players that were disposed, then their name will still be
+ // in Players.players. So, we must loop through and verify that the value
+ // for each item is not null. This allows registration of the Player component
+ // after all players have been disposed or before any were created.
+ if (players && playerNames.length > 0 && playerNames.map(function (pname) {
+ return players[pname];
+ }).every(Boolean)) {
+ throw new Error('Can not register Player component after player has been created.');
+ }
+ }
+
+ Component.components_[name] = ComponentToRegister;
+
+ return ComponentToRegister;
+ };
+
+ /**
+ * Get a `Component` based on the name it was registered with.
+ *
+ * @param {string} name
+ * The Name of the component to get.
+ *
+ * @return {Component}
+ * The `Component` that got registered under the given name.
+ *
+ * @deprecated In `videojs` 6 this will not return `Component`s that were not
+ * registered using {@link Component.registerComponent}. Currently we
+ * check the global `videojs` object for a `Component` name and
+ * return that if it exists.
+ */
+
+
+ Component.getComponent = function getComponent(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Component.components_ && Component.components_[name]) {
+ return Component.components_[name];
+ }
+ };
+
+ return Component;
+ }();
+
+ /**
+ * Whether or not this component supports `requestAnimationFrame`.
+ *
+ * This is exposed primarily for testing purposes.
+ *
+ * @private
+ * @type {Boolean}
+ */
+
+
+ Component.prototype.supportsRaf_ = typeof window_1.requestAnimationFrame === 'function' && typeof window_1.cancelAnimationFrame === 'function';
+
+ Component.registerComponent('Component', Component);
+
+ /**
+ * @file browser.js
+ * @module browser
+ */
+
+ var USER_AGENT = window_1.navigator && window_1.navigator.userAgent || '';
+ var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
+ var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
+
+ /*
+ * Device is an iPhone
+ *
+ * @type {Boolean}
+ * @constant
+ * @private
+ */
+ var IS_IPAD = /iPad/i.test(USER_AGENT);
+
+ // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+ // to identify iPhones, we need to exclude iPads.
+ // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+ var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+ var IS_IPOD = /iPod/i.test(USER_AGENT);
+ var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+ var IOS_VERSION = function () {
+ var match = USER_AGENT.match(/OS (\d+)_/i);
+
+ if (match && match[1]) {
+ return match[1];
+ }
+ return null;
+ }();
+
+ var IS_ANDROID = /Android/i.test(USER_AGENT);
+ var ANDROID_VERSION = function () {
+ // This matches Android Major.Minor.Patch versions
+ // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+ var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+
+ if (!match) {
+ return null;
+ }
+
+ var major = match[1] && parseFloat(match[1]);
+ var minor = match[2] && parseFloat(match[2]);
+
+ if (major && minor) {
+ return parseFloat(match[1] + '.' + match[2]);
+ } else if (major) {
+ return major;
+ }
+ return null;
+ }();
+
+ var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
+
+ var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+ var IS_EDGE = /Edge/i.test(USER_AGENT);
+ var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
+ var CHROME_VERSION = function () {
+ var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+
+ if (match && match[2]) {
+ return parseFloat(match[2]);
+ }
+ return null;
+ }();
+ var IE_VERSION = function () {
+ var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+ var version = result && parseFloat(result[1]);
+
+ if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+ // IE 11 has a different user agent string than other IE versions
+ version = 11.0;
+ }
+
+ return version;
+ }();
+
+ var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+ var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+ var TOUCH_ENABLED = isReal() && ('ontouchstart' in window_1 || window_1.navigator.maxTouchPoints || window_1.DocumentTouch && window_1.document instanceof window_1.DocumentTouch);
+
+ var browser = /*#__PURE__*/Object.freeze({
+ IS_IPAD: IS_IPAD,
+ IS_IPHONE: IS_IPHONE,
+ IS_IPOD: IS_IPOD,
+ IS_IOS: IS_IOS,
+ IOS_VERSION: IOS_VERSION,
+ IS_ANDROID: IS_ANDROID,
+ ANDROID_VERSION: ANDROID_VERSION,
+ IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
+ IS_FIREFOX: IS_FIREFOX,
+ IS_EDGE: IS_EDGE,
+ IS_CHROME: IS_CHROME,
+ CHROME_VERSION: CHROME_VERSION,
+ IE_VERSION: IE_VERSION,
+ IS_SAFARI: IS_SAFARI,
+ IS_ANY_SAFARI: IS_ANY_SAFARI,
+ TOUCH_ENABLED: TOUCH_ENABLED
+ });
+
+ /**
+ * @file time-ranges.js
+ * @module time-ranges
+ */
+
+ /**
+ * Returns the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @function time-ranges:indexFunction
+ *
+ * @param {number} [index=0]
+ * The range number to return the time for.
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ * @depricated index must be set to a value, in the future this will throw an error.
+ */
+
+ /**
+ * An object that contains ranges of time for various reasons.
+ *
+ * @typedef {Object} TimeRange
+ *
+ * @property {number} length
+ * The number of time ranges represented by this Object
+ *
+ * @property {time-ranges:indexFunction} start
+ * Returns the time offset at which a specified time range begins.
+ *
+ * @property {time-ranges:indexFunction} end
+ * Returns the time offset at which a specified time range ends.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+ */
+
+ /**
+ * Check if any of the time ranges are over the maximum index.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {number} index
+ * The index to check
+ *
+ * @param {number} maxIndex
+ * The maximum possible index
+ *
+ * @throws {Error} if the timeRanges provided are over the maxIndex
+ */
+ function rangeCheck(fnName, index, maxIndex) {
+ if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+ throw new Error('Failed to execute \'' + fnName + '\' on \'TimeRanges\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');
+ }
+ }
+
+ /**
+ * Get the time for the specified index at the start or end
+ * of a TimeRange object.
+ *
+ * @param {string} fnName
+ * The function name to use for logging
+ *
+ * @param {string} valueIndex
+ * The property that should be used to get the time. should be 'start' or 'end'
+ *
+ * @param {Array} ranges
+ * An array of time ranges
+ *
+ * @param {Array} [rangeIndex=0]
+ * The index to start the search at
+ *
+ * @return {number}
+ * The time that offset at the specified index.
+ *
+ *
+ * @depricated rangeIndex must be set to a value, in the future this will throw an error.
+ * @throws {Error} if rangeIndex is more than the length of ranges
+ */
+ function getRange(fnName, valueIndex, ranges, rangeIndex) {
+ rangeCheck(fnName, rangeIndex, ranges.length - 1);
+ return ranges[rangeIndex][valueIndex];
+ }
+
+ /**
+ * Create a time range object given ranges of time.
+ *
+ * @param {Array} [ranges]
+ * An array of time ranges.
+ */
+ function createTimeRangesObj(ranges) {
+ if (ranges === undefined || ranges.length === 0) {
+ return {
+ length: 0,
+ start: function start() {
+ throw new Error('This TimeRanges object is empty');
+ },
+ end: function end() {
+ throw new Error('This TimeRanges object is empty');
+ }
+ };
+ }
+ return {
+ length: ranges.length,
+ start: getRange.bind(null, 'start', 0, ranges),
+ end: getRange.bind(null, 'end', 1, ranges)
+ };
+ }
+
+ /**
+ * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.
+ *
+ * @param {number|Array} start
+ * The start of a single range or an array of ranges
+ *
+ * @param {number} end
+ * The end of a single range.
+ *
+ * @private
+ */
+ function createTimeRanges(start, end) {
+ if (Array.isArray(start)) {
+ return createTimeRangesObj(start);
+ } else if (start === undefined || end === undefined) {
+ return createTimeRangesObj();
+ }
+ return createTimeRangesObj([[start, end]]);
+ }
+
+ /**
+ * @file buffer.js
+ * @module buffer
+ */
+
+ /**
+ * Compute the percentage of the media that has been buffered.
+ *
+ * @param {TimeRange} buffered
+ * The current `TimeRange` object representing buffered time ranges
+ *
+ * @param {number} duration
+ * Total duration of the media
+ *
+ * @return {number}
+ * Percent buffered of the total duration in decimal form.
+ */
+ function bufferedPercent(buffered, duration) {
+ var bufferedDuration = 0;
+ var start = void 0;
+ var end = void 0;
+
+ if (!duration) {
+ return 0;
+ }
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ for (var i = 0; i < buffered.length; i++) {
+ start = buffered.start(i);
+ end = buffered.end(i);
+
+ // buffered end can be bigger than duration by a very small fraction
+ if (end > duration) {
+ end = duration;
+ }
+
+ bufferedDuration += end - start;
+ }
+
+ return bufferedDuration / duration;
+ }
+
+ /**
+ * @file fullscreen-api.js
+ * @module fullscreen-api
+ * @private
+ */
+
+ /**
+ * Store the browser-specific methods for the fullscreen API.
+ *
+ * @type {Object}
+ * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+ * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
+ */
+ var FullscreenApi = {};
+
+ // browser API methods
+ var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
+ // WebKit
+ ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Old WebKit (Safari 5.1)
+ ['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
+ // Mozilla
+ ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
+ // Microsoft
+ ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];
+
+ var specApi = apiMap[0];
+ var browserApi = void 0;
+
+ // determine the supported set of functions
+ for (var i = 0; i < apiMap.length; i++) {
+ // check for exitFullscreen function
+ if (apiMap[i][1] in document_1) {
+ browserApi = apiMap[i];
+ break;
+ }
+ }
+
+ // map the browser API names to the spec API names
+ if (browserApi) {
+ for (var _i = 0; _i < browserApi.length; _i++) {
+ FullscreenApi[specApi[_i]] = browserApi[_i];
+ }
+ }
+
+ /**
+ * @file media-error.js
+ */
+
+ /**
+ * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+ *
+ * @param {number|string|Object|MediaError} value
+ * This can be of multiple types:
+ * - number: should be a standard error code
+ * - string: an error message (the code will be 0)
+ * - Object: arbitrary properties
+ * - `MediaError` (native): used to populate a video.js `MediaError` object
+ * - `MediaError` (video.js): will return itself if it's already a
+ * video.js `MediaError` object.
+ *
+ * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+ * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+ *
+ * @class MediaError
+ */
+ function MediaError(value) {
+
+ // Allow redundant calls to this constructor to avoid having `instanceof`
+ // checks peppered around the code.
+ if (value instanceof MediaError) {
+ return value;
+ }
+
+ if (typeof value === 'number') {
+ this.code = value;
+ } else if (typeof value === 'string') {
+ // default code is zero, so this is a custom error
+ this.message = value;
+ } else if (isObject(value)) {
+
+ // We assign the `code` property manually because native `MediaError` objects
+ // do not expose it as an own/enumerable property of the object.
+ if (typeof value.code === 'number') {
+ this.code = value.code;
+ }
+
+ assign(this, value);
+ }
+
+ if (!this.message) {
+ this.message = MediaError.defaultMessages[this.code] || '';
+ }
+ }
+
+ /**
+ * The error code that refers two one of the defined `MediaError` types
+ *
+ * @type {Number}
+ */
+ MediaError.prototype.code = 0;
+
+ /**
+ * An optional message that to show with the error. Message is not part of the HTML5
+ * video spec but allows for more informative custom errors.
+ *
+ * @type {String}
+ */
+ MediaError.prototype.message = '';
+
+ /**
+ * An optional status code that can be set by plugins to allow even more detail about
+ * the error. For example a plugin might provide a specific HTTP status code and an
+ * error message for that code. Then when the plugin gets that error this class will
+ * know how to display an error message for it. This allows a custom message to show
+ * up on the `Player` error overlay.
+ *
+ * @type {Array}
+ */
+ MediaError.prototype.status = null;
+
+ /**
+ * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+ * specification listed under {@link MediaError} for more information.
+ *
+ * @enum {array}
+ * @readonly
+ * @property {string} 0 - MEDIA_ERR_CUSTOM
+ * @property {string} 1 - MEDIA_ERR_CUSTOM
+ * @property {string} 2 - MEDIA_ERR_ABORTED
+ * @property {string} 3 - MEDIA_ERR_NETWORK
+ * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+ * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+ */
+ MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+ /**
+ * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+ *
+ * @type {Array}
+ * @constant
+ */
+ MediaError.defaultMessages = {
+ 1: 'You aborted the media playback',
+ 2: 'A network error caused the media download to fail part-way.',
+ 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+ 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+ 5: 'The media is encrypted and we do not have the keys to decrypt it.'
+ };
+
+ // Add types as properties on MediaError
+ // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+ for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+ MediaError[MediaError.errorTypes[errNum]] = errNum;
+ // values should be accessible on both the class and instance
+ MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+ }
+
+ var tuple = SafeParseTuple;
+
+ function SafeParseTuple(obj, reviver) {
+ var json;
+ var error = null;
+
+ try {
+ json = JSON.parse(obj, reviver);
+ } catch (err) {
+ error = err;
+ }
+
+ return [error, json];
+ }
+
+ /**
+ * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ *
+ * @return {Boolean}
+ * Whether or not the object is `Promise`-like.
+ */
+ function isPromise(value) {
+ return value !== undefined && value !== null && typeof value.then === 'function';
+ }
+
+ /**
+ * Silence a Promise-like object.
+ *
+ * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+ * play promise" rejection error messages.
+ *
+ * @param {Object} value
+ * An object that may or may not be `Promise`-like.
+ */
+ function silencePromise(value) {
+ if (isPromise(value)) {
+ value.then(null, function (e) {});
+ }
+ }
+
+ /**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+ /**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ * The text track to query.
+ *
+ * @return {Object}
+ * A serializable javascript representation of the TextTrack.
+ * @private
+ */
+ var trackToJson_ = function trackToJson_(track) {
+ var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+ if (track[prop]) {
+ acc[prop] = track[prop];
+ }
+
+ return acc;
+ }, {
+ cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+ return {
+ startTime: cue.startTime,
+ endTime: cue.endTime,
+ text: cue.text,
+ id: cue.id
+ };
+ })
+ });
+
+ return ret;
+ };
+
+ /**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ * The tech object to query
+ *
+ * @return {Array}
+ * A serializable javascript representation of the {@link Tech}s
+ * {@link TextTrackList}.
+ */
+ var textTracksToJson = function textTracksToJson(tech) {
+
+ var trackEls = tech.$$('track');
+
+ var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+ return t.track;
+ });
+ var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+ var json = trackToJson_(trackEl.track);
+
+ if (trackEl.src) {
+ json.src = trackEl.src;
+ }
+ return json;
+ });
+
+ return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+ return trackObjs.indexOf(track) === -1;
+ }).map(trackToJson_));
+ };
+
+ /**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ * An array of `TextTrack` representation objects, like those that would be
+ * produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ * The `Tech` to create the `TextTrack`s on.
+ */
+ var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+ json.forEach(function (track) {
+ var addedTrack = tech.addRemoteTextTrack(track).track;
+
+ if (!track.src && track.cues) {
+ track.cues.forEach(function (cue) {
+ return addedTrack.addCue(cue);
+ });
+ }
+ });
+
+ return tech.textTracks();
+ };
+
+ var textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };
+
+ /**
+ * @file modal-dialog.js
+ */
+
+ var MODAL_CLASS_NAME = 'vjs-modal-dialog';
+ var ESC = 27;
+
+ /**
+ * The `ModalDialog` displays over the video and its controls, which blocks
+ * interaction with the player until it is closed.
+ *
+ * Modal dialogs include a "Close" button and will close when that button
+ * is activated - or when ESC is pressed anywhere.
+ *
+ * @extends Component
+ */
+
+ var ModalDialog = function (_Component) {
+ inherits(ModalDialog, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Mixed} [options.content=undefined]
+ * Provide customized content for this modal.
+ *
+ * @param {string} [options.description]
+ * A text description for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.fillAlways=false]
+ * Normally, modals are automatically filled only the first time
+ * they open. This tells the modal to refresh its content
+ * every time it opens.
+ *
+ * @param {string} [options.label]
+ * A text label for the modal, primarily for accessibility.
+ *
+ * @param {boolean} [options.temporary=true]
+ * If `true`, the modal can only be opened once; it will be
+ * disposed as soon as it's closed.
+ *
+ * @param {boolean} [options.uncloseable=false]
+ * If `true`, the user will not be able to close the modal
+ * through the UI in the normal ways. Programmatic closing is
+ * still possible.
+ */
+ function ModalDialog(player, options) {
+ classCallCheck(this, ModalDialog);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
+
+ _this.closeable(!_this.options_.uncloseable);
+ _this.content(_this.options_.content);
+
+ // Make sure the contentEl is defined AFTER any children are initialized
+ // because we only want the contents of the modal in the contentEl
+ // (not the UI elements like the close button).
+ _this.contentEl_ = createEl('div', {
+ className: MODAL_CLASS_NAME + '-content'
+ }, {
+ role: 'document'
+ });
+
+ _this.descEl_ = createEl('p', {
+ className: MODAL_CLASS_NAME + '-description vjs-control-text',
+ id: _this.el().getAttribute('aria-describedby')
+ });
+
+ textContent(_this.descEl_, _this.description());
+ _this.el_.appendChild(_this.descEl_);
+ _this.el_.appendChild(_this.contentEl_);
+ return _this;
+ }
+
+ /**
+ * Create the `ModalDialog`'s DOM element
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ ModalDialog.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass(),
+ tabIndex: -1
+ }, {
+ 'aria-describedby': this.id() + '_description',
+ 'aria-hidden': 'true',
+ 'aria-label': this.label(),
+ 'role': 'dialog'
+ });
+ };
+
+ ModalDialog.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.descEl_ = null;
+ this.previouslyActiveEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
+ return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles `keydown` events on the document, looking for ESC, which closes
+ * the modal.
+ *
+ * @param {EventTarget~Event} e
+ * The keypress that triggered this event.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
+ if (e.which === ESC && this.closeable()) {
+ this.close();
+ }
+ };
+
+ /**
+ * Returns the label string for this modal. Primarily used for accessibility.
+ *
+ * @return {string}
+ * the localized or raw label of this modal.
+ */
+
+
+ ModalDialog.prototype.label = function label() {
+ return this.localize(this.options_.label || 'Modal Window');
+ };
+
+ /**
+ * Returns the description string for this modal. Primarily used for
+ * accessibility.
+ *
+ * @return {string}
+ * The localized or raw description of this modal.
+ */
+
+
+ ModalDialog.prototype.description = function description() {
+ var desc = this.options_.description || this.localize('This is a modal window.');
+
+ // Append a universal closeability message if the modal is closeable.
+ if (this.closeable()) {
+ desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+ }
+
+ return desc;
+ };
+
+ /**
+ * Opens the modal.
+ *
+ * @fires ModalDialog#beforemodalopen
+ * @fires ModalDialog#modalopen
+ */
+
+
+ ModalDialog.prototype.open = function open() {
+ if (!this.opened_) {
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#beforemodalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalopen');
+ this.opened_ = true;
+
+ // Fill content if the modal has never opened before and
+ // never been filled.
+ if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+ this.fill();
+ }
+
+ // If the player was playing, pause it and take note of its previously
+ // playing state.
+ this.wasPlaying_ = !player.paused();
+
+ if (this.options_.pauseOnOpen && this.wasPlaying_) {
+ player.pause();
+ }
+
+ if (this.closeable()) {
+ this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ // Hide controls and note if they were enabled.
+ this.hadControls_ = player.controls();
+ player.controls(false);
+
+ this.show();
+ this.conditionalFocus_();
+ this.el().setAttribute('aria-hidden', 'false');
+
+ /**
+ * Fired just after a `ModalDialog` is opened.
+ *
+ * @event ModalDialog#modalopen
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalopen');
+ this.hasBeenOpened_ = true;
+ }
+ };
+
+ /**
+ * If the `ModalDialog` is currently open or closed.
+ *
+ * @param {boolean} [value]
+ * If given, it will open (`true`) or close (`false`) the modal.
+ *
+ * @return {boolean}
+ * the current open state of the modaldialog
+ */
+
+
+ ModalDialog.prototype.opened = function opened(value) {
+ if (typeof value === 'boolean') {
+ this[value ? 'open' : 'close']();
+ }
+ return this.opened_;
+ };
+
+ /**
+ * Closes the modal, does nothing if the `ModalDialog` is
+ * not open.
+ *
+ * @fires ModalDialog#beforemodalclose
+ * @fires ModalDialog#modalclose
+ */
+
+
+ ModalDialog.prototype.close = function close() {
+ if (!this.opened_) {
+ return;
+ }
+ var player = this.player();
+
+ /**
+ * Fired just before a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#beforemodalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalclose');
+ this.opened_ = false;
+
+ if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+ player.play();
+ }
+
+ if (this.closeable()) {
+ this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));
+ }
+
+ if (this.hadControls_) {
+ player.controls(true);
+ }
+
+ this.hide();
+ this.el().setAttribute('aria-hidden', 'true');
+
+ /**
+ * Fired just after a `ModalDialog` is closed.
+ *
+ * @event ModalDialog#modalclose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalclose');
+ this.conditionalBlur_();
+
+ if (this.options_.temporary) {
+ this.dispose();
+ }
+ };
+
+ /**
+ * Check to see if the `ModalDialog` is closeable via the UI.
+ *
+ * @param {boolean} [value]
+ * If given as a boolean, it will set the `closeable` option.
+ *
+ * @return {boolean}
+ * Returns the final value of the closable option.
+ */
+
+
+ ModalDialog.prototype.closeable = function closeable(value) {
+ if (typeof value === 'boolean') {
+ var closeable = this.closeable_ = !!value;
+ var close = this.getChild('closeButton');
+
+ // If this is being made closeable and has no close button, add one.
+ if (closeable && !close) {
+
+ // The close button should be a child of the modal - not its
+ // content element, so temporarily change the content element.
+ var temp = this.contentEl_;
+
+ this.contentEl_ = this.el_;
+ close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
+ this.contentEl_ = temp;
+ this.on(close, 'close', this.close);
+ }
+
+ // If this is being made uncloseable and has a close button, remove it.
+ if (!closeable && close) {
+ this.off(close, 'close', this.close);
+ this.removeChild(close);
+ close.dispose();
+ }
+ }
+ return this.closeable_;
+ };
+
+ /**
+ * Fill the modal's content element with the modal's "content" option.
+ * The content element will be emptied before this change takes place.
+ */
+
+
+ ModalDialog.prototype.fill = function fill() {
+ this.fillWith(this.content());
+ };
+
+ /**
+ * Fill the modal's content element with arbitrary content.
+ * The content element will be emptied before this change takes place.
+ *
+ * @fires ModalDialog#beforemodalfill
+ * @fires ModalDialog#modalfill
+ *
+ * @param {Mixed} [content]
+ * The same rules apply to this as apply to the `content` option.
+ */
+
+
+ ModalDialog.prototype.fillWith = function fillWith(content) {
+ var contentEl = this.contentEl();
+ var parentEl = contentEl.parentNode;
+ var nextSiblingEl = contentEl.nextSibling;
+
+ /**
+ * Fired just before a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#beforemodalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalfill');
+ this.hasBeenFilled_ = true;
+
+ // Detach the content element from the DOM before performing
+ // manipulation to avoid modifying the live DOM multiple times.
+ parentEl.removeChild(contentEl);
+ this.empty();
+ insertContent(contentEl, content);
+ /**
+ * Fired just after a `ModalDialog` is filled with content.
+ *
+ * @event ModalDialog#modalfill
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalfill');
+
+ // Re-inject the re-filled content element.
+ if (nextSiblingEl) {
+ parentEl.insertBefore(contentEl, nextSiblingEl);
+ } else {
+ parentEl.appendChild(contentEl);
+ }
+
+ // make sure that the close button is last in the dialog DOM
+ var closeButton = this.getChild('closeButton');
+
+ if (closeButton) {
+ parentEl.appendChild(closeButton.el_);
+ }
+ };
+
+ /**
+ * Empties the content element. This happens anytime the modal is filled.
+ *
+ * @fires ModalDialog#beforemodalempty
+ * @fires ModalDialog#modalempty
+ */
+
+
+ ModalDialog.prototype.empty = function empty() {
+ /**
+ * Fired just before a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#beforemodalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('beforemodalempty');
+ emptyEl(this.contentEl());
+
+ /**
+ * Fired just after a `ModalDialog` is emptied.
+ *
+ * @event ModalDialog#modalempty
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modalempty');
+ };
+
+ /**
+ * Gets or sets the modal content, which gets normalized before being
+ * rendered into the DOM.
+ *
+ * This does not update the DOM or fill the modal, but it is called during
+ * that process.
+ *
+ * @param {Mixed} [value]
+ * If defined, sets the internal content value to be used on the
+ * next call(s) to `fill`. This value is normalized before being
+ * inserted. To "clear" the internal content value, pass `null`.
+ *
+ * @return {Mixed}
+ * The current content of the modal dialog
+ */
+
+
+ ModalDialog.prototype.content = function content(value) {
+ if (typeof value !== 'undefined') {
+ this.content_ = value;
+ }
+ return this.content_;
+ };
+
+ /**
+ * conditionally focus the modal dialog if focus was previously on the player.
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {
+ var activeEl = document_1.activeElement;
+ var playerEl = this.player_.el_;
+
+ this.previouslyActiveEl_ = null;
+
+ if (playerEl.contains(activeEl) || playerEl === activeEl) {
+ this.previouslyActiveEl_ = activeEl;
+
+ this.focus();
+
+ this.on(document_1, 'keydown', this.handleKeyDown);
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the last focused element
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {
+ if (this.previouslyActiveEl_) {
+ this.previouslyActiveEl_.focus();
+ this.previouslyActiveEl_ = null;
+ }
+
+ this.off(document_1, 'keydown', this.handleKeyDown);
+ };
+
+ /**
+ * Keydown handler. Attached when modal is focused.
+ *
+ * @listens keydown
+ */
+
+
+ ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {
+ // exit early if it isn't a tab key
+ if (event.which !== 9) {
+ return;
+ }
+
+ var focusableEls = this.focusableEls_();
+ var activeEl = this.el_.querySelector(':focus');
+ var focusIndex = void 0;
+
+ for (var i = 0; i < focusableEls.length; i++) {
+ if (activeEl === focusableEls[i]) {
+ focusIndex = i;
+ break;
+ }
+ }
+
+ if (document_1.activeElement === this.el_) {
+ focusIndex = 0;
+ }
+
+ if (event.shiftKey && focusIndex === 0) {
+ focusableEls[focusableEls.length - 1].focus();
+ event.preventDefault();
+ } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+ focusableEls[0].focus();
+ event.preventDefault();
+ }
+ };
+
+ /**
+ * get all focusable elements
+ *
+ * @private
+ */
+
+
+ ModalDialog.prototype.focusableEls_ = function focusableEls_() {
+ var allChildren = this.el_.querySelectorAll('*');
+
+ return Array.prototype.filter.call(allChildren, function (child) {
+ return (child instanceof window_1.HTMLAnchorElement || child instanceof window_1.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window_1.HTMLInputElement || child instanceof window_1.HTMLSelectElement || child instanceof window_1.HTMLTextAreaElement || child instanceof window_1.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window_1.HTMLIFrameElement || child instanceof window_1.HTMLObjectElement || child instanceof window_1.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+ });
+ };
+
+ return ModalDialog;
+ }(Component);
+
+ /**
+ * Default options for `ModalDialog` default options.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ModalDialog.prototype.options_ = {
+ pauseOnOpen: true,
+ temporary: true
+ };
+
+ Component.registerComponent('ModalDialog', ModalDialog);
+
+ /**
+ * @file track-list.js
+ */
+
+ /**
+ * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+ * {@link VideoTrackList}
+ *
+ * @extends EventTarget
+ */
+
+ var TrackList = function (_EventTarget) {
+ inherits(TrackList, _EventTarget);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Track[]} tracks
+ * A list of tracks to initialize the list with.
+ *
+ * @abstract
+ */
+ function TrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, TrackList);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ _this.tracks_ = [];
+
+ /**
+ * @memberof TrackList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(_this, 'length', {
+ get: function get$$1() {
+ return this.tracks_.length;
+ }
+ });
+
+ for (var i = 0; i < tracks.length; i++) {
+ _this.addTrack(tracks[i]);
+ }
+ return _this;
+ }
+
+ /**
+ * Add a {@link Track} to the `TrackList`
+ *
+ * @param {Track} track
+ * The audio, video, or text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ TrackList.prototype.addTrack = function addTrack(track) {
+ var index = this.tracks_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.tracks_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate tracks
+ if (this.tracks_.indexOf(track) === -1) {
+ this.tracks_.push(track);
+ /**
+ * Triggered when a track is added to a track list.
+ *
+ * @event TrackList#addtrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was added.
+ */
+ this.trigger({
+ track: track,
+ type: 'addtrack'
+ });
+ }
+ };
+
+ /**
+ * Remove a {@link Track} from the `TrackList`
+ *
+ * @param {Track} rtrack
+ * The audio, video, or text track to remove from the list.
+ *
+ * @fires TrackList#removetrack
+ */
+
+
+ TrackList.prototype.removeTrack = function removeTrack(rtrack) {
+ var track = void 0;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ if (this[i] === rtrack) {
+ track = this[i];
+ if (track.off) {
+ track.off();
+ }
+
+ this.tracks_.splice(i, 1);
+
+ break;
+ }
+ }
+
+ if (!track) {
+ return;
+ }
+
+ /**
+ * Triggered when a track is removed from track list.
+ *
+ * @event TrackList#removetrack
+ * @type {EventTarget~Event}
+ * @property {Track} track
+ * A reference to track that was removed.
+ */
+ this.trigger({
+ track: track,
+ type: 'removetrack'
+ });
+ };
+
+ /**
+ * Get a Track from the TrackList by a tracks id
+ *
+ * @param {String} id - the id of the track to get
+ * @method getTrackById
+ * @return {Track}
+ * @private
+ */
+
+
+ TrackList.prototype.getTrackById = function getTrackById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var track = this[i];
+
+ if (track.id === id) {
+ result = track;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TrackList;
+ }(EventTarget);
+
+ /**
+ * Triggered when a different track is selected/enabled.
+ *
+ * @event TrackList#change
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Events that can be called with on + eventName. See {@link EventHandler}.
+ *
+ * @property {Object} TrackList#allowedEvents_
+ * @private
+ */
+
+
+ TrackList.prototype.allowedEvents_ = {
+ change: 'change',
+ addtrack: 'addtrack',
+ removetrack: 'removetrack'
+ };
+
+ // emulate attribute EventHandler support to allow for feature detection
+ for (var event in TrackList.prototype.allowedEvents_) {
+ TrackList.prototype['on' + event] = null;
+ }
+
+ /**
+ * @file audio-track-list.js
+ */
+
+ /**
+ * Anywhere we call this function we diverge from the spec
+ * as we only support one enabled audiotrack at a time
+ *
+ * @param {AudioTrackList} list
+ * list to work on
+ *
+ * @param {AudioTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another audio track is enabled, disable it
+ list[i].enabled = false;
+ }
+ };
+
+ /**
+ * The current list of {@link AudioTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+ * @extends TrackList
+ */
+
+ var AudioTrackList = function (_TrackList) {
+ inherits(AudioTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {AudioTrack[]} [tracks=[]]
+ * A list of `AudioTrack` to instantiate the list with.
+ */
+ function AudioTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, AudioTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].enabled) {
+ disableOthers(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+ return _this;
+ }
+
+ /**
+ * Add an {@link AudioTrack} to the `AudioTrackList`.
+ *
+ * @param {AudioTrack} track
+ * The AudioTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ AudioTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.enabled) {
+ disableOthers(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens AudioTrack#enabledchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('enabledchange', function () {
+ // when we are disabling other tracks (since we don't support
+ // more than one track at a time) we will set changing_
+ // to true so that we don't trigger additional change events
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return AudioTrackList;
+ }(TrackList);
+
+ /**
+ * @file video-track-list.js
+ */
+
+ /**
+ * Un-select all other {@link VideoTrack}s that are selected.
+ *
+ * @param {VideoTrackList} list
+ * list to work on
+ *
+ * @param {VideoTrack} track
+ * The track to skip
+ *
+ * @private
+ */
+ var disableOthers$1 = function disableOthers(list, track) {
+ for (var i = 0; i < list.length; i++) {
+ if (!Object.keys(list[i]).length || track.id === list[i].id) {
+ continue;
+ }
+ // another video track is enabled, disable it
+ list[i].selected = false;
+ }
+ };
+
+ /**
+ * The current list of {@link VideoTrack} for a video.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+ * @extends TrackList
+ */
+
+ var VideoTrackList = function (_TrackList) {
+ inherits(VideoTrackList, _TrackList);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {VideoTrack[]} [tracks=[]]
+ * A list of `VideoTrack` to instantiate the list with.
+ */
+ function VideoTrackList() {
+ var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, VideoTrackList);
+
+ // make sure only 1 track is enabled
+ // sorted from last index to first index
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ if (tracks[i].selected) {
+ disableOthers$1(tracks, tracks[i]);
+ break;
+ }
+ }
+
+ var _this = possibleConstructorReturn(this, _TrackList.call(this, tracks));
+
+ _this.changing_ = false;
+
+ /**
+ * @member {number} VideoTrackList#selectedIndex
+ * The current index of the selected {@link VideoTrack`}.
+ */
+ Object.defineProperty(_this, 'selectedIndex', {
+ get: function get$$1() {
+ for (var _i = 0; _i < this.length; _i++) {
+ if (this[_i].selected) {
+ return _i;
+ }
+ }
+ return -1;
+ },
+ set: function set$$1() {}
+ });
+ return _this;
+ }
+
+ /**
+ * Add a {@link VideoTrack} to the `VideoTrackList`.
+ *
+ * @param {VideoTrack} track
+ * The VideoTrack to add to the list
+ *
+ * @fires TrackList#addtrack
+ */
+
+
+ VideoTrackList.prototype.addTrack = function addTrack(track) {
+ var _this2 = this;
+
+ if (track.selected) {
+ disableOthers$1(this, track);
+ }
+
+ _TrackList.prototype.addTrack.call(this, track);
+ // native tracks don't have this
+ if (!track.addEventListener) {
+ return;
+ }
+
+ /**
+ * @listens VideoTrack#selectedchange
+ * @fires TrackList#change
+ */
+ track.addEventListener('selectedchange', function () {
+ if (_this2.changing_) {
+ return;
+ }
+ _this2.changing_ = true;
+ disableOthers$1(_this2, track);
+ _this2.changing_ = false;
+ _this2.trigger('change');
+ });
+ };
+
+ return VideoTrackList;
+ }(TrackList);
+
+ /**
+ * @file text-track-list.js
+ */
+
+ /**
+ * The current list of {@link TextTrack} for a media file.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+ * @extends TrackList
+ */
+
+ var TextTrackList = function (_TrackList) {
+ inherits(TextTrackList, _TrackList);
+
+ function TextTrackList() {
+ classCallCheck(this, TextTrackList);
+ return possibleConstructorReturn(this, _TrackList.apply(this, arguments));
+ }
+
+ /**
+ * Add a {@link TextTrack} to the `TextTrackList`
+ *
+ * @param {TextTrack} track
+ * The text track to add to the list.
+ *
+ * @fires TrackList#addtrack
+ */
+ TextTrackList.prototype.addTrack = function addTrack(track) {
+ _TrackList.prototype.addTrack.call(this, track);
+
+ /**
+ * @listens TextTrack#modechange
+ * @fires TrackList#change
+ */
+ track.addEventListener('modechange', bind(this, function () {
+ this.queueTrigger('change');
+ }));
+
+ var nonLanguageTextTrackKind = ['metadata', 'chapters'];
+
+ if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+ track.addEventListener('modechange', bind(this, function () {
+ this.trigger('selectedlanguagechange');
+ }));
+ }
+ };
+
+ return TextTrackList;
+ }(TrackList);
+
+ /**
+ * @file html-track-element-list.js
+ */
+
+ /**
+ * The current list of {@link HtmlTrackElement}s.
+ */
+ var HtmlTrackElementList = function () {
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {HtmlTrackElement[]} [tracks=[]]
+ * A list of `HtmlTrackElement` to instantiate the list with.
+ */
+ function HtmlTrackElementList() {
+ var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ classCallCheck(this, HtmlTrackElementList);
+
+ this.trackElements_ = [];
+
+ /**
+ * @memberof HtmlTrackElementList
+ * @member {number} length
+ * The current number of `Track`s in the this Trackist.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.trackElements_.length;
+ }
+ });
+
+ for (var i = 0, length = trackElements.length; i < length; i++) {
+ this.addTrackElement_(trackElements[i]);
+ }
+ }
+
+ /**
+ * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to add to the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {
+ var index = this.trackElements_.length;
+
+ if (!('' + index in this)) {
+ Object.defineProperty(this, index, {
+ get: function get$$1() {
+ return this.trackElements_[index];
+ }
+ });
+ }
+
+ // Do not add duplicate elements
+ if (this.trackElements_.indexOf(trackElement) === -1) {
+ this.trackElements_.push(trackElement);
+ }
+ };
+
+ /**
+ * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+ * {@link TextTrack}.
+ *
+ * @param {TextTrack} track
+ * The track associated with a track element.
+ *
+ * @return {HtmlTrackElement|undefined}
+ * The track element that was found or undefined.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
+ var trackElement_ = void 0;
+
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (track === this.trackElements_[i].track) {
+ trackElement_ = this.trackElements_[i];
+
+ break;
+ }
+ }
+
+ return trackElement_;
+ };
+
+ /**
+ * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+ *
+ * @param {HtmlTrackElement} trackElement
+ * The track element to remove from the list.
+ *
+ * @private
+ */
+
+
+ HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {
+ for (var i = 0, length = this.trackElements_.length; i < length; i++) {
+ if (trackElement === this.trackElements_[i]) {
+ this.trackElements_.splice(i, 1);
+
+ break;
+ }
+ }
+ };
+
+ return HtmlTrackElementList;
+ }();
+
+ /**
+ * @file text-track-cue-list.js
+ */
+
+ /**
+ * @typedef {Object} TextTrackCueList~TextTrackCue
+ *
+ * @property {string} id
+ * The unique id for this text track cue
+ *
+ * @property {number} startTime
+ * The start time for this text track cue
+ *
+ * @property {number} endTime
+ * The end time for this text track cue
+ *
+ * @property {boolean} pauseOnExit
+ * Pause when the end time is reached if true.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+ */
+
+ /**
+ * A List of TextTrackCues.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+ */
+ var TextTrackCueList = function () {
+
+ /**
+ * Create an instance of this class..
+ *
+ * @param {Array} cues
+ * A list of cues to be initialized with
+ */
+ function TextTrackCueList(cues) {
+ classCallCheck(this, TextTrackCueList);
+
+ TextTrackCueList.prototype.setCues_.call(this, cues);
+
+ /**
+ * @memberof TextTrackCueList
+ * @member {number} length
+ * The current number of `TextTrackCue`s in the TextTrackCueList.
+ * @instance
+ */
+ Object.defineProperty(this, 'length', {
+ get: function get$$1() {
+ return this.length_;
+ }
+ });
+ }
+
+ /**
+ * A setter for cues in this list. Creates getters
+ * an an index for the cues.
+ *
+ * @param {Array} cues
+ * An array of cues to set
+ *
+ * @private
+ */
+
+
+ TextTrackCueList.prototype.setCues_ = function setCues_(cues) {
+ var oldLength = this.length || 0;
+ var i = 0;
+ var l = cues.length;
+
+ this.cues_ = cues;
+ this.length_ = cues.length;
+
+ var defineProp = function defineProp(index) {
+ if (!('' + index in this)) {
+ Object.defineProperty(this, '' + index, {
+ get: function get$$1() {
+ return this.cues_[index];
+ }
+ });
+ }
+ };
+
+ if (oldLength < l) {
+ i = oldLength;
+
+ for (; i < l; i++) {
+ defineProp.call(this, i);
+ }
+ }
+ };
+
+ /**
+ * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+ *
+ * @param {string} id
+ * The id of the cue that should be searched for.
+ *
+ * @return {TextTrackCueList~TextTrackCue|null}
+ * A single cue or null if none was found.
+ */
+
+
+ TextTrackCueList.prototype.getCueById = function getCueById(id) {
+ var result = null;
+
+ for (var i = 0, l = this.length; i < l; i++) {
+ var cue = this[i];
+
+ if (cue.id === id) {
+ result = cue;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ return TextTrackCueList;
+ }();
+
+ /**
+ * @file track-kinds.js
+ */
+
+ /**
+ * All possible `VideoTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+ * @typedef VideoTrack~Kind
+ * @enum
+ */
+ var VideoTrackKind = {
+ alternative: 'alternative',
+ captions: 'captions',
+ main: 'main',
+ sign: 'sign',
+ subtitles: 'subtitles',
+ commentary: 'commentary'
+ };
+
+ /**
+ * All possible `AudioTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+ * @typedef AudioTrack~Kind
+ * @enum
+ */
+ var AudioTrackKind = {
+ 'alternative': 'alternative',
+ 'descriptions': 'descriptions',
+ 'main': 'main',
+ 'main-desc': 'main-desc',
+ 'translation': 'translation',
+ 'commentary': 'commentary'
+ };
+
+ /**
+ * All possible `TextTrackKind`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+ * @typedef TextTrack~Kind
+ * @enum
+ */
+ var TextTrackKind = {
+ subtitles: 'subtitles',
+ captions: 'captions',
+ descriptions: 'descriptions',
+ chapters: 'chapters',
+ metadata: 'metadata'
+ };
+
+ /**
+ * All possible `TextTrackMode`s
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+ * @typedef TextTrack~Mode
+ * @enum
+ */
+ var TextTrackMode = {
+ disabled: 'disabled',
+ hidden: 'hidden',
+ showing: 'showing'
+ };
+
+ /**
+ * @file track.js
+ */
+
+ /**
+ * A Track class that contains all of the common functionality for {@link AudioTrack},
+ * {@link VideoTrack}, and {@link TextTrack}.
+ *
+ * > Note: This class should not be used directly
+ *
+ * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+ * @extends EventTarget
+ * @abstract
+ */
+
+ var Track = function (_EventTarget) {
+ inherits(Track, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid kind for the track type you are creating.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @abstract
+ */
+ function Track() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, Track);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var trackProps = {
+ id: options.id || 'vjs_track_' + newGUID(),
+ kind: options.kind || '',
+ label: options.label || '',
+ language: options.language || ''
+ };
+
+ /**
+ * @memberof Track
+ * @member {string} id
+ * The id of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} kind
+ * The kind of track that this is. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} label
+ * The label of this track. Cannot be changed after creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ /**
+ * @memberof Track
+ * @member {string} language
+ * The two letter language code for this track. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+
+ var _loop = function _loop(key) {
+ Object.defineProperty(_this, key, {
+ get: function get$$1() {
+ return trackProps[key];
+ },
+ set: function set$$1() {}
+ });
+ };
+
+ for (var key in trackProps) {
+ _loop(key);
+ }
+ return _this;
+ }
+
+ return Track;
+ }(EventTarget);
+
+ /**
+ * @file url.js
+ * @module url
+ */
+
+ /**
+ * @typedef {Object} url:URLObject
+ *
+ * @property {string} protocol
+ * The protocol of the url that was parsed.
+ *
+ * @property {string} hostname
+ * The hostname of the url that was parsed.
+ *
+ * @property {string} port
+ * The port of the url that was parsed.
+ *
+ * @property {string} pathname
+ * The pathname of the url that was parsed.
+ *
+ * @property {string} search
+ * The search query of the url that was parsed.
+ *
+ * @property {string} hash
+ * The hash of the url that was parsed.
+ *
+ * @property {string} host
+ * The host of the url that was parsed.
+ */
+
+ /**
+ * Resolve and parse the elements of a URL.
+ *
+ * @param {String} url
+ * The url to parse
+ *
+ * @return {url:URLObject}
+ * An object of url details
+ */
+ var parseUrl = function parseUrl(url) {
+ var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+ // add the url to an anchor and let the browser parse the URL
+ var a = document_1.createElement('a');
+
+ a.href = url;
+
+ // IE8 (and 9?) Fix
+ // ie8 doesn't parse the URL correctly until the anchor is actually
+ // added to the body, and an innerHTML is needed to trigger the parsing
+ var addToBody = a.host === '' && a.protocol !== 'file:';
+ var div = void 0;
+
+ if (addToBody) {
+ div = document_1.createElement('div');
+ div.innerHTML = '<a href="' + url + '"></a>';
+ a = div.firstChild;
+ // prevent the div from affecting layout
+ div.setAttribute('style', 'display:none; position:absolute;');
+ document_1.body.appendChild(div);
+ }
+
+ // Copy the specific URL properties to a new object
+ // This is also needed for IE8 because the anchor loses its
+ // properties when it's removed from the dom
+ var details = {};
+
+ for (var i = 0; i < props.length; i++) {
+ details[props[i]] = a[props[i]];
+ }
+
+ // IE9 adds the port to the host property unlike everyone else. If
+ // a port identifier is added for standard ports, strip it.
+ if (details.protocol === 'http:') {
+ details.host = details.host.replace(/:80$/, '');
+ }
+
+ if (details.protocol === 'https:') {
+ details.host = details.host.replace(/:443$/, '');
+ }
+
+ if (!details.protocol) {
+ details.protocol = window_1.location.protocol;
+ }
+
+ if (addToBody) {
+ document_1.body.removeChild(div);
+ }
+
+ return details;
+ };
+
+ /**
+ * Get absolute version of relative URL. Used to tell flash correct URL.
+ *
+ *
+ * @param {string} url
+ * URL to make absolute
+ *
+ * @return {string}
+ * Absolute URL
+ *
+ * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+ var getAbsoluteURL = function getAbsoluteURL(url) {
+ // Check if absolute URL
+ if (!url.match(/^https?:\/\//)) {
+ // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
+ var div = document_1.createElement('div');
+
+ div.innerHTML = '<a href="' + url + '">x</a>';
+ url = div.firstChild.href;
+ }
+
+ return url;
+ };
+
+ /**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @param {string} path
+ * The fileName path like '/path/to/file.mp4'
+ *
+ * @returns {string}
+ * The extension in lower case or an empty string if no
+ * extension could be found.
+ */
+ var getFileExtension = function getFileExtension(path) {
+ if (typeof path === 'string') {
+ var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/i;
+ var pathParts = splitPathRe.exec(path);
+
+ if (pathParts) {
+ return pathParts.pop().toLowerCase();
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @param {string} url
+ * The url to check.
+ *
+ * @return {boolean}
+ * Whether it is a cross domain request or not.
+ */
+ var isCrossOrigin = function isCrossOrigin(url) {
+ var winLoc = window_1.location;
+ var urlInfo = parseUrl(url);
+
+ // IE8 protocol relative urls will return ':' for protocol
+ var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
+
+ // Check if url is for another domain/origin
+ // IE8 doesn't know location.origin, so we won't rely on it here
+ var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+
+ return crossOrigin;
+ };
+
+ var Url = /*#__PURE__*/Object.freeze({
+ parseUrl: parseUrl,
+ getAbsoluteURL: getAbsoluteURL,
+ getFileExtension: getFileExtension,
+ isCrossOrigin: isCrossOrigin
+ });
+
+ var isFunction_1 = isFunction;
+
+ var toString$1 = Object.prototype.toString;
+
+ function isFunction(fn) {
+ var string = toString$1.call(fn);
+ return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (
+ // IE8 and below
+ fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
+ }
+
+ var isFunction$1 = /*#__PURE__*/Object.freeze({
+ default: isFunction_1,
+ __moduleExports: isFunction_1
+ });
+
+ var trim_1 = createCommonjsModule(function (module, exports) {
+ exports = module.exports = trim;
+
+ function trim(str) {
+ return str.replace(/^\s*|\s*$/g, '');
+ }
+
+ exports.left = function (str) {
+ return str.replace(/^\s*/, '');
+ };
+
+ exports.right = function (str) {
+ return str.replace(/\s*$/, '');
+ };
+ });
+ var trim_2 = trim_1.left;
+ var trim_3 = trim_1.right;
+
+ var trim = /*#__PURE__*/Object.freeze({
+ default: trim_1,
+ __moduleExports: trim_1,
+ left: trim_2,
+ right: trim_3
+ });
+
+ var isFunction$2 = ( isFunction$1 && isFunction_1 ) || isFunction$1;
+
+ var forEach_1 = forEach;
+
+ var toString$2 = Object.prototype.toString;
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+ function forEach(list, iterator, context) {
+ if (!isFunction$2(iterator)) {
+ throw new TypeError('iterator must be a function');
+ }
+
+ if (arguments.length < 3) {
+ context = this;
+ }
+
+ if (toString$2.call(list) === '[object Array]') forEachArray(list, iterator, context);else if (typeof list === 'string') forEachString(list, iterator, context);else forEachObject(list, iterator, context);
+ }
+
+ function forEachArray(array, iterator, context) {
+ for (var i = 0, len = array.length; i < len; i++) {
+ if (hasOwnProperty.call(array, i)) {
+ iterator.call(context, array[i], i, array);
+ }
+ }
+ }
+
+ function forEachString(string, iterator, context) {
+ for (var i = 0, len = string.length; i < len; i++) {
+ // no such thing as a sparse string.
+ iterator.call(context, string.charAt(i), i, string);
+ }
+ }
+
+ function forEachObject(object, iterator, context) {
+ for (var k in object) {
+ if (hasOwnProperty.call(object, k)) {
+ iterator.call(context, object[k], k, object);
+ }
+ }
+ }
+
+ var forEach$1 = /*#__PURE__*/Object.freeze({
+ default: forEach_1,
+ __moduleExports: forEach_1
+ });
+
+ var trim$1 = ( trim && trim_1 ) || trim;
+
+ var forEach$2 = ( forEach$1 && forEach_1 ) || forEach$1;
+
+ var isArray = function isArray(arg) {
+ return Object.prototype.toString.call(arg) === '[object Array]';
+ };
+
+ var parseHeaders = function parseHeaders(headers) {
+ if (!headers) return {};
+
+ var result = {};
+
+ forEach$2(trim$1(headers).split('\n'), function (row) {
+ var index = row.indexOf(':'),
+ key = trim$1(row.slice(0, index)).toLowerCase(),
+ value = trim$1(row.slice(index + 1));
+
+ if (typeof result[key] === 'undefined') {
+ result[key] = value;
+ } else if (isArray(result[key])) {
+ result[key].push(value);
+ } else {
+ result[key] = [result[key], value];
+ }
+ });
+
+ return result;
+ };
+
+ var parseHeaders$1 = /*#__PURE__*/Object.freeze({
+ default: parseHeaders,
+ __moduleExports: parseHeaders
+ });
+
+ var immutable = extend;
+
+ var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+
+ function extend() {
+ var target = {};
+
+ for (var i = 0; i < arguments.length; i++) {
+ var source = arguments[i];
+
+ for (var key in source) {
+ if (hasOwnProperty$1.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+
+ return target;
+ }
+
+ var immutable$1 = /*#__PURE__*/Object.freeze({
+ default: immutable,
+ __moduleExports: immutable
+ });
+
+ var parseHeaders$2 = ( parseHeaders$1 && parseHeaders ) || parseHeaders$1;
+
+ var xtend = ( immutable$1 && immutable ) || immutable$1;
+
+ var xhr = createXHR;
+ createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop;
+ createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
+
+ forEachArray$1(["get", "put", "post", "patch", "head", "delete"], function (method) {
+ createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
+ options = initParams(uri, options, callback);
+ options.method = method.toUpperCase();
+ return _createXHR(options);
+ };
+ });
+
+ function forEachArray$1(array, iterator) {
+ for (var i = 0; i < array.length; i++) {
+ iterator(array[i]);
+ }
+ }
+
+ function isEmpty(obj) {
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) return false;
+ }
+ return true;
+ }
+
+ function initParams(uri, options, callback) {
+ var params = uri;
+
+ if (isFunction$2(options)) {
+ callback = options;
+ if (typeof uri === "string") {
+ params = { uri: uri };
+ }
+ } else {
+ params = xtend(options, { uri: uri });
+ }
+
+ params.callback = callback;
+ return params;
+ }
+
+ function createXHR(uri, options, callback) {
+ options = initParams(uri, options, callback);
+ return _createXHR(options);
+ }
+
+ function _createXHR(options) {
+ if (typeof options.callback === "undefined") {
+ throw new Error("callback argument missing");
+ }
+
+ var called = false;
+ var callback = function cbOnce(err, response, body) {
+ if (!called) {
+ called = true;
+ options.callback(err, response, body);
+ }
+ };
+
+ function readystatechange() {
+ if (xhr.readyState === 4) {
+ setTimeout(loadFunc, 0);
+ }
+ }
+
+ function getBody() {
+ // Chrome with requestType=blob throws errors arround when even testing access to responseText
+ var body = undefined;
+
+ if (xhr.response) {
+ body = xhr.response;
+ } else {
+ body = xhr.responseText || getXml(xhr);
+ }
+
+ if (isJson) {
+ try {
+ body = JSON.parse(body);
+ } catch (e) {}
+ }
+
+ return body;
+ }
+
+ function errorFunc(evt) {
+ clearTimeout(timeoutTimer);
+ if (!(evt instanceof Error)) {
+ evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
+ }
+ evt.statusCode = 0;
+ return callback(evt, failureResponse);
+ }
+
+ // will load the data & process the response in a special response object
+ function loadFunc() {
+ if (aborted) return;
+ var status;
+ clearTimeout(timeoutTimer);
+ if (options.useXDR && xhr.status === undefined) {
+ //IE8 CORS GET successful response doesn't have a status field, but body is fine
+ status = 200;
+ } else {
+ status = xhr.status === 1223 ? 204 : xhr.status;
+ }
+ var response = failureResponse;
+ var err = null;
+
+ if (status !== 0) {
+ response = {
+ body: getBody(),
+ statusCode: status,
+ method: method,
+ headers: {},
+ url: uri,
+ rawRequest: xhr
+ };
+ if (xhr.getAllResponseHeaders) {
+ //remember xhr can in fact be XDR for CORS in IE
+ response.headers = parseHeaders$2(xhr.getAllResponseHeaders());
+ }
+ } else {
+ err = new Error("Internal XMLHttpRequest Error");
+ }
+ return callback(err, response, response.body);
+ }
+
+ var xhr = options.xhr || null;
+
+ if (!xhr) {
+ if (options.cors || options.useXDR) {
+ xhr = new createXHR.XDomainRequest();
+ } else {
+ xhr = new createXHR.XMLHttpRequest();
+ }
+ }
+
+ var key;
+ var aborted;
+ var uri = xhr.url = options.uri || options.url;
+ var method = xhr.method = options.method || "GET";
+ var body = options.body || options.data;
+ var headers = xhr.headers = options.headers || {};
+ var sync = !!options.sync;
+ var isJson = false;
+ var timeoutTimer;
+ var failureResponse = {
+ body: undefined,
+ headers: {},
+ statusCode: 0,
+ method: method,
+ url: uri,
+ rawRequest: xhr
+ };
+
+ if ("json" in options && options.json !== false) {
+ isJson = true;
+ headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
+ if (method !== "GET" && method !== "HEAD") {
+ headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
+ body = JSON.stringify(options.json === true ? body : options.json);
+ }
+ }
+
+ xhr.onreadystatechange = readystatechange;
+ xhr.onload = loadFunc;
+ xhr.onerror = errorFunc;
+ // IE9 must have onprogress be set to a unique function.
+ xhr.onprogress = function () {
+ // IE must die
+ };
+ xhr.onabort = function () {
+ aborted = true;
+ };
+ xhr.ontimeout = errorFunc;
+ xhr.open(method, uri, !sync, options.username, options.password);
+ //has to be after open
+ if (!sync) {
+ xhr.withCredentials = !!options.withCredentials;
+ }
+ // Cannot set timeout with sync request
+ // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
+ // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
+ if (!sync && options.timeout > 0) {
+ timeoutTimer = setTimeout(function () {
+ if (aborted) return;
+ aborted = true; //IE9 may still call readystatechange
+ xhr.abort("timeout");
+ var e = new Error("XMLHttpRequest timeout");
+ e.code = "ETIMEDOUT";
+ errorFunc(e);
+ }, options.timeout);
+ }
+
+ if (xhr.setRequestHeader) {
+ for (key in headers) {
+ if (headers.hasOwnProperty(key)) {
+ xhr.setRequestHeader(key, headers[key]);
+ }
+ }
+ } else if (options.headers && !isEmpty(options.headers)) {
+ throw new Error("Headers cannot be set on an XDomainRequest object");
+ }
+
+ if ("responseType" in options) {
+ xhr.responseType = options.responseType;
+ }
+
+ if ("beforeSend" in options && typeof options.beforeSend === "function") {
+ options.beforeSend(xhr);
+ }
+
+ // Microsoft Edge browser sends "undefined" when send is called with undefined value.
+ // XMLHttpRequest spec says to pass null as body to indicate no body
+ // See https://github.com/naugtur/xhr/issues/100.
+ xhr.send(body || null);
+
+ return xhr;
+ }
+
+ function getXml(xhr) {
+ if (xhr.responseType === "document") {
+ return xhr.responseXML;
+ }
+ var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
+ if (xhr.responseType === "" && !firefoxBugTakenEffect) {
+ return xhr.responseXML;
+ }
+
+ return null;
+ }
+
+ function noop() {}
+
+ /**
+ * @file text-track.js
+ */
+
+ /**
+ * Takes a webvtt file contents and parses it into cues
+ *
+ * @param {string} srcContent
+ * webVTT file contents
+ *
+ * @param {TextTrack} track
+ * TextTrack to add cues to. Cues come from the srcContent.
+ *
+ * @private
+ */
+ var parseCues = function parseCues(srcContent, track) {
+ var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, window_1.WebVTT.StringDecoder());
+ var errors = [];
+
+ parser.oncue = function (cue) {
+ track.addCue(cue);
+ };
+
+ parser.onparsingerror = function (error) {
+ errors.push(error);
+ };
+
+ parser.onflush = function () {
+ track.trigger({
+ type: 'loadeddata',
+ target: track
+ });
+ };
+
+ parser.parse(srcContent);
+ if (errors.length > 0) {
+ if (window_1.console && window_1.console.groupCollapsed) {
+ window_1.console.groupCollapsed('Text Track parsing errors for ' + track.src);
+ }
+ errors.forEach(function (error) {
+ return log$1.error(error);
+ });
+ if (window_1.console && window_1.console.groupEnd) {
+ window_1.console.groupEnd();
+ }
+ }
+
+ parser.flush();
+ };
+
+ /**
+ * Load a `TextTrack` from a specified url.
+ *
+ * @param {string} src
+ * Url to load track from.
+ *
+ * @param {TextTrack} track
+ * Track to add cues to. Comes from the content at the end of `url`.
+ *
+ * @private
+ */
+ var loadTrack = function loadTrack(src, track) {
+ var opts = {
+ uri: src
+ };
+ var crossOrigin = isCrossOrigin(src);
+
+ if (crossOrigin) {
+ opts.cors = crossOrigin;
+ }
+
+ xhr(opts, bind(this, function (err, response, responseBody) {
+ if (err) {
+ return log$1.error(err, response);
+ }
+
+ track.loaded_ = true;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ // NOTE: this is only used for the alt/video.novtt.js build
+ if (typeof window_1.WebVTT !== 'function') {
+ if (track.tech_) {
+ var loadHandler = function loadHandler() {
+ return parseCues(responseBody, track);
+ };
+
+ track.tech_.on('vttjsloaded', loadHandler);
+ track.tech_.on('vttjserror', function () {
+ log$1.error('vttjs failed to load, stopping trying to process ' + track.src);
+ track.tech_.off('vttjsloaded', loadHandler);
+ });
+ }
+ } else {
+ parseCues(responseBody, track);
+ }
+ }));
+ };
+
+ /**
+ * A representation of a single `TextTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+ * @extends Track
+ */
+
+ var TextTrack = function (_Track) {
+ inherits(TextTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this TextTrack.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * version of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function TextTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, TextTrack);
+
+ if (!options.tech) {
+ throw new Error('A tech was not provided.');
+ }
+
+ var settings = mergeOptions(options, {
+ kind: TextTrackKind[options.kind] || 'subtitles',
+ language: options.language || options.srclang || ''
+ });
+ var mode = TextTrackMode[settings.mode] || 'disabled';
+ var default_ = settings.default;
+
+ if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+ mode = 'hidden';
+ }
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ _this.tech_ = settings.tech;
+
+ _this.cues_ = [];
+ _this.activeCues_ = [];
+
+ var cues = new TextTrackCueList(_this.cues_);
+ var activeCues = new TextTrackCueList(_this.activeCues_);
+ var changed = false;
+ var timeupdateHandler = bind(_this, function () {
+
+ // Accessing this.activeCues for the side-effects of updating itself
+ // due to it's nature as a getter function. Do not remove or cues will
+ // stop updating!
+ // Use the setter to prevent deletion from uglify (pure_getters rule)
+ this.activeCues = this.activeCues;
+ if (changed) {
+ this.trigger('cuechange');
+ changed = false;
+ }
+ });
+
+ if (mode !== 'disabled') {
+ _this.tech_.ready(function () {
+ _this.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ }
+
+ Object.defineProperties(_this, {
+ /**
+ * @memberof TextTrack
+ * @member {boolean} default
+ * If this track was set to be on or off by default. Cannot be changed after
+ * creation.
+ * @instance
+ *
+ * @readonly
+ */
+ default: {
+ get: function get$$1() {
+ return default_;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {string} mode
+ * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+ * not be set if setting to an invalid mode.
+ * @instance
+ *
+ * @fires TextTrack#modechange
+ */
+ mode: {
+ get: function get$$1() {
+ return mode;
+ },
+ set: function set$$1(newMode) {
+ var _this2 = this;
+
+ if (!TextTrackMode[newMode]) {
+ return;
+ }
+ mode = newMode;
+ if (mode !== 'disabled') {
+ this.tech_.ready(function () {
+ _this2.tech_.on('timeupdate', timeupdateHandler);
+ }, true);
+ } else {
+ this.tech_.off('timeupdate', timeupdateHandler);
+ }
+ /**
+ * An event that fires when mode changes on this track. This allows
+ * the TextTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec!
+ *
+ * @event TextTrack#modechange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('modechange');
+ }
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} cues
+ * The text track cue list for this TextTrack.
+ * @instance
+ */
+ cues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ return cues;
+ },
+ set: function set$$1() {}
+ },
+
+ /**
+ * @memberof TextTrack
+ * @member {TextTrackCueList} activeCues
+ * The list text track cues that are currently active for this TextTrack.
+ * @instance
+ */
+ activeCues: {
+ get: function get$$1() {
+ if (!this.loaded_) {
+ return null;
+ }
+
+ // nothing to do
+ if (this.cues.length === 0) {
+ return activeCues;
+ }
+
+ var ct = this.tech_.currentTime();
+ var active = [];
+
+ for (var i = 0, l = this.cues.length; i < l; i++) {
+ var cue = this.cues[i];
+
+ if (cue.startTime <= ct && cue.endTime >= ct) {
+ active.push(cue);
+ } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
+ active.push(cue);
+ }
+ }
+
+ changed = false;
+
+ if (active.length !== this.activeCues_.length) {
+ changed = true;
+ } else {
+ for (var _i = 0; _i < active.length; _i++) {
+ if (this.activeCues_.indexOf(active[_i]) === -1) {
+ changed = true;
+ }
+ }
+ }
+
+ this.activeCues_ = active;
+ activeCues.setCues_(this.activeCues_);
+
+ return activeCues;
+ },
+
+
+ // /!\ Keep this setter empty (see the timeupdate handler above)
+ set: function set$$1() {}
+ }
+ });
+
+ if (settings.src) {
+ _this.src = settings.src;
+ loadTrack(settings.src, _this);
+ } else {
+ _this.loaded_ = true;
+ }
+ return _this;
+ }
+
+ /**
+ * Add a cue to the internal list of cues.
+ *
+ * @param {TextTrack~Cue} cue
+ * The cue to add to our internal list
+ */
+
+
+ TextTrack.prototype.addCue = function addCue(originalCue) {
+ var cue = originalCue;
+
+ if (window_1.vttjs && !(originalCue instanceof window_1.vttjs.VTTCue)) {
+ cue = new window_1.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+
+ for (var prop in originalCue) {
+ if (!(prop in cue)) {
+ cue[prop] = originalCue[prop];
+ }
+ }
+
+ // make sure that `id` is copied over
+ cue.id = originalCue.id;
+ cue.originalCue_ = originalCue;
+ }
+
+ var tracks = this.tech_.textTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ if (tracks[i] !== this) {
+ tracks[i].removeCue(cue);
+ }
+ }
+
+ this.cues_.push(cue);
+ this.cues.setCues_(this.cues_);
+ };
+
+ /**
+ * Remove a cue from our internal list
+ *
+ * @param {TextTrack~Cue} removeCue
+ * The cue to remove from our internal list
+ */
+
+
+ TextTrack.prototype.removeCue = function removeCue(_removeCue) {
+ var i = this.cues_.length;
+
+ while (i--) {
+ var cue = this.cues_[i];
+
+ if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
+ this.cues_.splice(i, 1);
+ this.cues.setCues_(this.cues_);
+ break;
+ }
+ }
+ };
+
+ return TextTrack;
+ }(Track);
+
+ /**
+ * cuechange - One or more cues in the track have become active or stopped being active.
+ */
+
+
+ TextTrack.prototype.allowedEvents_ = {
+ cuechange: 'cuechange'
+ };
+
+ /**
+ * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+ * only one `AudioTrack` in the list will be enabled at a time.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+ * @extends Track
+ */
+
+ var AudioTrack = function (_Track) {
+ inherits(AudioTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {AudioTrack~Kind} [options.kind='']
+ * A valid audio track kind
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.enabled]
+ * If this track is the one that is currently playing. If this track is part of
+ * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+ */
+ function AudioTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, AudioTrack);
+
+ var settings = mergeOptions(options, {
+ kind: AudioTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var enabled = false;
+
+ /**
+ * @memberof AudioTrack
+ * @member {boolean} enabled
+ * If this `AudioTrack` is enabled or not. When setting this will
+ * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'enabled', {
+ get: function get$$1() {
+ return enabled;
+ },
+ set: function set$$1(newEnabled) {
+ // an invalid or unchanged value
+ if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+ return;
+ }
+ enabled = newEnabled;
+
+ /**
+ * An event that fires when enabled changes on this track. This allows
+ * the AudioTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event AudioTrack#enabledchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enabledchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.enabled) {
+ _this.enabled = settings.enabled;
+ }
+ _this.loaded_ = true;
+ return _this;
+ }
+
+ return AudioTrack;
+ }(Track);
+
+ /**
+ * A representation of a single `VideoTrack`.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+ * @extends Track
+ */
+
+ var VideoTrack = function (_Track) {
+ inherits(VideoTrack, _Track);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} [options={}]
+ * Object of option names and values
+ *
+ * @param {string} [options.kind='']
+ * A valid {@link VideoTrack~Kind}
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this AudioTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {boolean} [options.selected]
+ * If this track is the one that is currently playing.
+ */
+ function VideoTrack() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, VideoTrack);
+
+ var settings = mergeOptions(options, {
+ kind: VideoTrackKind[options.kind] || ''
+ });
+
+ var _this = possibleConstructorReturn(this, _Track.call(this, settings));
+
+ var selected = false;
+
+ /**
+ * @memberof VideoTrack
+ * @member {boolean} selected
+ * If this `VideoTrack` is selected or not. When setting this will
+ * fire {@link VideoTrack#selectedchange} if the state of selected changed.
+ * @instance
+ *
+ * @fires VideoTrack#selectedchange
+ */
+ Object.defineProperty(_this, 'selected', {
+ get: function get$$1() {
+ return selected;
+ },
+ set: function set$$1(newSelected) {
+ // an invalid or unchanged value
+ if (typeof newSelected !== 'boolean' || newSelected === selected) {
+ return;
+ }
+ selected = newSelected;
+
+ /**
+ * An event that fires when selected changes on this track. This allows
+ * the VideoTrackList that holds this track to act accordingly.
+ *
+ * > Note: This is not part of the spec! Native tracks will do
+ * this internally without an event.
+ *
+ * @event VideoTrack#selectedchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('selectedchange');
+ }
+ });
+
+ // if the user sets this track to selected then
+ // set selected to that true value otherwise
+ // we keep it false
+ if (settings.selected) {
+ _this.selected = settings.selected;
+ }
+ return _this;
+ }
+
+ return VideoTrack;
+ }(Track);
+
+ /**
+ * @file html-track-element.js
+ */
+
+ /**
+ * @memberof HTMLTrackElement
+ * @typedef {HTMLTrackElement~ReadyState}
+ * @enum {number}
+ */
+ var NONE = 0;
+ var LOADING = 1;
+ var LOADED = 2;
+ var ERROR = 3;
+
+ /**
+ * A single track represented in the DOM.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+ * @extends EventTarget
+ */
+
+ var HTMLTrackElement = function (_EventTarget) {
+ inherits(HTMLTrackElement, _EventTarget);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Object} options={}
+ * Object of option names and values
+ *
+ * @param {Tech} options.tech
+ * A reference to the tech that owns this HTMLTrackElement.
+ *
+ * @param {TextTrack~Kind} [options.kind='subtitles']
+ * A valid text track kind.
+ *
+ * @param {TextTrack~Mode} [options.mode='disabled']
+ * A valid text track mode.
+ *
+ * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+ * A unique id for this TextTrack.
+ *
+ * @param {string} [options.label='']
+ * The menu label for this track.
+ *
+ * @param {string} [options.language='']
+ * A valid two character language code.
+ *
+ * @param {string} [options.srclang='']
+ * A valid two character language code. An alternative, but deprioritized
+ * vesion of `options.language`
+ *
+ * @param {string} [options.src]
+ * A url to TextTrack cues.
+ *
+ * @param {boolean} [options.default]
+ * If this track should default to on or off.
+ */
+ function HTMLTrackElement() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ classCallCheck(this, HTMLTrackElement);
+
+ var _this = possibleConstructorReturn(this, _EventTarget.call(this));
+
+ var readyState = void 0;
+
+ var track = new TextTrack(options);
+
+ _this.kind = track.kind;
+ _this.src = track.src;
+ _this.srclang = track.language;
+ _this.label = track.label;
+ _this.default = track.default;
+
+ Object.defineProperties(_this, {
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {HTMLTrackElement~ReadyState} readyState
+ * The current ready state of the track element.
+ * @instance
+ */
+ readyState: {
+ get: function get$$1() {
+ return readyState;
+ }
+ },
+
+ /**
+ * @memberof HTMLTrackElement
+ * @member {TextTrack} track
+ * The underlying TextTrack object.
+ * @instance
+ *
+ */
+ track: {
+ get: function get$$1() {
+ return track;
+ }
+ }
+ });
+
+ readyState = NONE;
+
+ /**
+ * @listens TextTrack#loadeddata
+ * @fires HTMLTrackElement#load
+ */
+ track.addEventListener('loadeddata', function () {
+ readyState = LOADED;
+
+ _this.trigger({
+ type: 'load',
+ target: _this
+ });
+ });
+ return _this;
+ }
+
+ return HTMLTrackElement;
+ }(EventTarget);
+
+ HTMLTrackElement.prototype.allowedEvents_ = {
+ load: 'load'
+ };
+
+ HTMLTrackElement.NONE = NONE;
+ HTMLTrackElement.LOADING = LOADING;
+ HTMLTrackElement.LOADED = LOADED;
+ HTMLTrackElement.ERROR = ERROR;
+
+ /*
+ * This file contains all track properties that are used in
+ * player.js, tech.js, html5.js and possibly other techs in the future.
+ */
+
+ var NORMAL = {
+ audio: {
+ ListClass: AudioTrackList,
+ TrackClass: AudioTrack,
+ capitalName: 'Audio'
+ },
+ video: {
+ ListClass: VideoTrackList,
+ TrackClass: VideoTrack,
+ capitalName: 'Video'
+ },
+ text: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'Text'
+ }
+ };
+
+ Object.keys(NORMAL).forEach(function (type) {
+ NORMAL[type].getterName = type + 'Tracks';
+ NORMAL[type].privateName = type + 'Tracks_';
+ });
+
+ var REMOTE = {
+ remoteText: {
+ ListClass: TextTrackList,
+ TrackClass: TextTrack,
+ capitalName: 'RemoteText',
+ getterName: 'remoteTextTracks',
+ privateName: 'remoteTextTracks_'
+ },
+ remoteTextEl: {
+ ListClass: HtmlTrackElementList,
+ TrackClass: HTMLTrackElement,
+ capitalName: 'RemoteTextTrackEls',
+ getterName: 'remoteTextTrackEls',
+ privateName: 'remoteTextTrackEls_'
+ }
+ };
+
+ var ALL = mergeOptions(NORMAL, REMOTE);
+
+ REMOTE.names = Object.keys(REMOTE);
+ NORMAL.names = Object.keys(NORMAL);
+ ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
+
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+ /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+ var _objCreate = Object.create || function () {
+ function F() {}
+ return function (o) {
+ if (arguments.length !== 1) {
+ throw new Error('Object.create shim only accepts one parameter.');
+ }
+ F.prototype = o;
+ return new F();
+ };
+ }();
+
+ // Creates a new ParserError object from an errorData object. The errorData
+ // object should have default code and message properties. The default message
+ // property can be overriden by passing in a message parameter.
+ // See ParsingError.Errors below for acceptable errors.
+ function ParsingError(errorData, message) {
+ this.name = "ParsingError";
+ this.code = errorData.code;
+ this.message = message || errorData.message;
+ }
+ ParsingError.prototype = _objCreate(Error.prototype);
+ ParsingError.prototype.constructor = ParsingError;
+
+ // ParsingError metadata for acceptable ParsingErrors.
+ ParsingError.Errors = {
+ BadSignature: {
+ code: 0,
+ message: "Malformed WebVTT signature."
+ },
+ BadTimeStamp: {
+ code: 1,
+ message: "Malformed time stamp."
+ }
+ };
+
+ // Try to parse input as a time stamp.
+ function parseTimeStamp(input) {
+
+ function computeSeconds(h, m, s, f) {
+ return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;
+ }
+
+ var m = input.match(/^(\d+):(\d{2})(:\d{2})?\.(\d{3})/);
+ if (!m) {
+ return null;
+ }
+
+ if (m[3]) {
+ // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]
+ return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]);
+ } else if (m[1] > 59) {
+ // Timestamp takes the form of [hours]:[minutes].[milliseconds]
+ // First position is hours as it's over 59.
+ return computeSeconds(m[1], m[2], 0, m[4]);
+ } else {
+ // Timestamp takes the form of [minutes]:[seconds].[milliseconds]
+ return computeSeconds(0, m[1], m[2], m[4]);
+ }
+ }
+
+ // A settings object holds key/value pairs and will ignore anything but the first
+ // assignment to a specific key.
+ function Settings() {
+ this.values = _objCreate(null);
+ }
+
+ Settings.prototype = {
+ // Only accept the first assignment to any key.
+ set: function set(k, v) {
+ if (!this.get(k) && v !== "") {
+ this.values[k] = v;
+ }
+ },
+ // Return the value for a key, or a default value.
+ // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
+ // a number of possible default values as properties where 'defaultKey' is
+ // the key of the property that will be chosen; otherwise it's assumed to be
+ // a single value.
+ get: function get(k, dflt, defaultKey) {
+ if (defaultKey) {
+ return this.has(k) ? this.values[k] : dflt[defaultKey];
+ }
+ return this.has(k) ? this.values[k] : dflt;
+ },
+ // Check whether we have a value for a key.
+ has: function has(k) {
+ return k in this.values;
+ },
+ // Accept a setting if its one of the given alternatives.
+ alt: function alt(k, v, a) {
+ for (var n = 0; n < a.length; ++n) {
+ if (v === a[n]) {
+ this.set(k, v);
+ break;
+ }
+ }
+ },
+ // Accept a setting if its a valid (signed) integer.
+ integer: function integer(k, v) {
+ if (/^-?\d+$/.test(v)) {
+ // integer
+ this.set(k, parseInt(v, 10));
+ }
+ },
+ // Accept a setting if its a valid percentage.
+ percent: function percent(k, v) {
+ var m;
+ if (m = v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) {
+ v = parseFloat(v);
+ if (v >= 0 && v <= 100) {
+ this.set(k, v);
+ return true;
+ }
+ }
+ return false;
+ }
+ };
+
+ // Helper function to parse input into groups separated by 'groupDelim', and
+ // interprete each group as a key/value pair separated by 'keyValueDelim'.
+ function parseOptions(input, callback, keyValueDelim, groupDelim) {
+ var groups = groupDelim ? input.split(groupDelim) : [input];
+ for (var i in groups) {
+ if (typeof groups[i] !== "string") {
+ continue;
+ }
+ var kv = groups[i].split(keyValueDelim);
+ if (kv.length !== 2) {
+ continue;
+ }
+ var k = kv[0];
+ var v = kv[1];
+ callback(k, v);
+ }
+ }
+
+ function parseCue(input, cue, regionList) {
+ // Remember the original input if we need to throw an error.
+ var oInput = input;
+ // 4.1 WebVTT timestamp
+ function consumeTimeStamp() {
+ var ts = parseTimeStamp(input);
+ if (ts === null) {
+ throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed timestamp: " + oInput);
+ }
+ // Remove time stamp from input.
+ input = input.replace(/^[^\sa-zA-Z-]+/, "");
+ return ts;
+ }
+
+ // 4.4.2 WebVTT cue settings
+ function consumeCueSettings(input, cue) {
+ var settings = new Settings();
+
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "region":
+ // Find the last region we parsed with the same region id.
+ for (var i = regionList.length - 1; i >= 0; i--) {
+ if (regionList[i].id === v) {
+ settings.set(k, regionList[i].region);
+ break;
+ }
+ }
+ break;
+ case "vertical":
+ settings.alt(k, v, ["rl", "lr"]);
+ break;
+ case "line":
+ var vals = v.split(","),
+ vals0 = vals[0];
+ settings.integer(k, vals0);
+ settings.percent(k, vals0) ? settings.set("snapToLines", false) : null;
+ settings.alt(k, vals0, ["auto"]);
+ if (vals.length === 2) {
+ settings.alt("lineAlign", vals[1], ["start", "middle", "end"]);
+ }
+ break;
+ case "position":
+ vals = v.split(",");
+ settings.percent(k, vals[0]);
+ if (vals.length === 2) {
+ settings.alt("positionAlign", vals[1], ["start", "middle", "end"]);
+ }
+ break;
+ case "size":
+ settings.percent(k, v);
+ break;
+ case "align":
+ settings.alt(k, v, ["start", "middle", "end", "left", "right"]);
+ break;
+ }
+ }, /:/, /\s/);
+
+ // Apply default values for any missing fields.
+ cue.region = settings.get("region", null);
+ cue.vertical = settings.get("vertical", "");
+ cue.line = settings.get("line", "auto");
+ cue.lineAlign = settings.get("lineAlign", "start");
+ cue.snapToLines = settings.get("snapToLines", true);
+ cue.size = settings.get("size", 100);
+ cue.align = settings.get("align", "middle");
+ cue.position = settings.get("position", {
+ start: 0,
+ left: 0,
+ middle: 50,
+ end: 100,
+ right: 100
+ }, cue.align);
+ cue.positionAlign = settings.get("positionAlign", {
+ start: "start",
+ left: "start",
+ middle: "middle",
+ end: "end",
+ right: "end"
+ }, cue.align);
+ }
+
+ function skipWhitespace() {
+ input = input.replace(/^\s+/, "");
+ }
+
+ // 4.1 WebVTT cue timings.
+ skipWhitespace();
+ cue.startTime = consumeTimeStamp(); // (1) collect cue start time
+ skipWhitespace();
+ if (input.substr(0, 3) !== "-->") {
+ // (3) next characters must match "-->"
+ throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed time stamp (time stamps must be separated by '-->'): " + oInput);
+ }
+ input = input.substr(3);
+ skipWhitespace();
+ cue.endTime = consumeTimeStamp(); // (5) collect cue end time
+
+ // 4.1 WebVTT cue settings list.
+ skipWhitespace();
+ consumeCueSettings(input, cue);
+ }
+
+ var ESCAPE = {
+ "&amp;": "&",
+ "&lt;": "<",
+ "&gt;": ">",
+ "&lrm;": "\u200E",
+ "&rlm;": "\u200F",
+ "&nbsp;": "\xA0"
+ };
+
+ var TAG_NAME = {
+ c: "span",
+ i: "i",
+ b: "b",
+ u: "u",
+ ruby: "ruby",
+ rt: "rt",
+ v: "span",
+ lang: "span"
+ };
+
+ var TAG_ANNOTATION = {
+ v: "title",
+ lang: "lang"
+ };
+
+ var NEEDS_PARENT = {
+ rt: "ruby"
+ };
+
+ // Parse content into a document fragment.
+ function parseContent(window, input) {
+ function nextToken() {
+ // Check for end-of-string.
+ if (!input) {
+ return null;
+ }
+
+ // Consume 'n' characters from the input.
+ function consume(result) {
+ input = input.substr(result.length);
+ return result;
+ }
+
+ var m = input.match(/^([^<]*)(<[^>]*>?)?/);
+ // If there is some text before the next tag, return it, otherwise return
+ // the tag.
+ return consume(m[1] ? m[1] : m[2]);
+ }
+
+ // Unescape a string 's'.
+ function unescape1(e) {
+ return ESCAPE[e];
+ }
+ function unescape(s) {
+ while (m = s.match(/&(amp|lt|gt|lrm|rlm|nbsp);/)) {
+ s = s.replace(m[0], unescape1);
+ }
+ return s;
+ }
+
+ function shouldAdd(current, element) {
+ return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;
+ }
+
+ // Create an element for this tag.
+ function createElement(type, annotation) {
+ var tagName = TAG_NAME[type];
+ if (!tagName) {
+ return null;
+ }
+ var element = window.document.createElement(tagName);
+ element.localName = tagName;
+ var name = TAG_ANNOTATION[type];
+ if (name && annotation) {
+ element[name] = annotation.trim();
+ }
+ return element;
+ }
+
+ var rootDiv = window.document.createElement("div"),
+ current = rootDiv,
+ t,
+ tagStack = [];
+
+ while ((t = nextToken()) !== null) {
+ if (t[0] === '<') {
+ if (t[1] === "/") {
+ // If the closing tag matches, move back up to the parent node.
+ if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) {
+ tagStack.pop();
+ current = current.parentNode;
+ }
+ // Otherwise just ignore the end tag.
+ continue;
+ }
+ var ts = parseTimeStamp(t.substr(1, t.length - 2));
+ var node;
+ if (ts) {
+ // Timestamps are lead nodes as well.
+ node = window.document.createProcessingInstruction("timestamp", ts);
+ current.appendChild(node);
+ continue;
+ }
+ var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/);
+ // If we can't parse the tag, skip to the next tag.
+ if (!m) {
+ continue;
+ }
+ // Try to construct an element, and ignore the tag if we couldn't.
+ node = createElement(m[1], m[3]);
+ if (!node) {
+ continue;
+ }
+ // Determine if the tag should be added based on the context of where it
+ // is placed in the cuetext.
+ if (!shouldAdd(current, node)) {
+ continue;
+ }
+ // Set the class list (as a list of classes, separated by space).
+ if (m[2]) {
+ node.className = m[2].substr(1).replace('.', ' ');
+ }
+ // Append the node to the current node, and enter the scope of the new
+ // node.
+ tagStack.push(m[1]);
+ current.appendChild(node);
+ current = node;
+ continue;
+ }
+
+ // Text nodes are leaf nodes.
+ current.appendChild(window.document.createTextNode(unescape(t)));
+ }
+
+ return rootDiv;
+ }
+
+ // This is a list of all the Unicode characters that have a strong
+ // right-to-left category. What this means is that these characters are
+ // written right-to-left for sure. It was generated by pulling all the strong
+ // right-to-left characters out of the Unicode data table. That table can
+ // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
+ var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];
+
+ function isStrongRTLChar(charCode) {
+ for (var i = 0; i < strongRTLRanges.length; i++) {
+ var currentRange = strongRTLRanges[i];
+ if (charCode >= currentRange[0] && charCode <= currentRange[1]) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ function determineBidi(cueDiv) {
+ var nodeStack = [],
+ text = "",
+ charCode;
+
+ if (!cueDiv || !cueDiv.childNodes) {
+ return "ltr";
+ }
+
+ function pushNodes(nodeStack, node) {
+ for (var i = node.childNodes.length - 1; i >= 0; i--) {
+ nodeStack.push(node.childNodes[i]);
+ }
+ }
+
+ function nextTextNode(nodeStack) {
+ if (!nodeStack || !nodeStack.length) {
+ return null;
+ }
+
+ var node = nodeStack.pop(),
+ text = node.textContent || node.innerText;
+ if (text) {
+ // TODO: This should match all unicode type B characters (paragraph
+ // separator characters). See issue #115.
+ var m = text.match(/^.*(\n|\r)/);
+ if (m) {
+ nodeStack.length = 0;
+ return m[0];
+ }
+ return text;
+ }
+ if (node.tagName === "ruby") {
+ return nextTextNode(nodeStack);
+ }
+ if (node.childNodes) {
+ pushNodes(nodeStack, node);
+ return nextTextNode(nodeStack);
+ }
+ }
+
+ pushNodes(nodeStack, cueDiv);
+ while (text = nextTextNode(nodeStack)) {
+ for (var i = 0; i < text.length; i++) {
+ charCode = text.charCodeAt(i);
+ if (isStrongRTLChar(charCode)) {
+ return "rtl";
+ }
+ }
+ }
+ return "ltr";
+ }
+
+ function computeLinePos(cue) {
+ if (typeof cue.line === "number" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {
+ return cue.line;
+ }
+ if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {
+ return -1;
+ }
+ var track = cue.track,
+ trackList = track.textTrackList,
+ count = 0;
+ for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {
+ if (trackList[i].mode === "showing") {
+ count++;
+ }
+ }
+ return ++count * -1;
+ }
+
+ function StyleBox() {}
+
+ // Apply styles to a div. If there is no div passed then it defaults to the
+ // div on 'this'.
+ StyleBox.prototype.applyStyles = function (styles, div) {
+ div = div || this.div;
+ for (var prop in styles) {
+ if (styles.hasOwnProperty(prop)) {
+ div.style[prop] = styles[prop];
+ }
+ }
+ };
+
+ StyleBox.prototype.formatStyle = function (val, unit) {
+ return val === 0 ? 0 : val + unit;
+ };
+
+ // Constructs the computed display state of the cue (a div). Places the div
+ // into the overlay which should be a block level element (usually a div).
+ function CueStyleBox(window, cue, styleOptions) {
+ StyleBox.call(this);
+ this.cue = cue;
+
+ // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will
+ // have inline positioning and will function as the cue background box.
+ this.cueDiv = parseContent(window, cue.text);
+ var styles = {
+ color: "rgba(255, 255, 255, 1)",
+ backgroundColor: "rgba(0, 0, 0, 0.8)",
+ position: "relative",
+ left: 0,
+ right: 0,
+ top: 0,
+ bottom: 0,
+ display: "inline",
+ writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
+ unicodeBidi: "plaintext"
+ };
+
+ this.applyStyles(styles, this.cueDiv);
+
+ // Create an absolutely positioned div that will be used to position the cue
+ // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS
+ // mirrors of them except "middle" which is "center" in CSS.
+ this.div = window.document.createElement("div");
+ styles = {
+ direction: determineBidi(this.cueDiv),
+ writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
+ unicodeBidi: "plaintext",
+ textAlign: cue.align === "middle" ? "center" : cue.align,
+ font: styleOptions.font,
+ whiteSpace: "pre-line",
+ position: "absolute"
+ };
+
+ this.applyStyles(styles);
+ this.div.appendChild(this.cueDiv);
+
+ // Calculate the distance from the reference edge of the viewport to the text
+ // position of the cue box. The reference edge will be resolved later when
+ // the box orientation styles are applied.
+ var textPos = 0;
+ switch (cue.positionAlign) {
+ case "start":
+ textPos = cue.position;
+ break;
+ case "middle":
+ textPos = cue.position - cue.size / 2;
+ break;
+ case "end":
+ textPos = cue.position - cue.size;
+ break;
+ }
+
+ // Horizontal box orientation; textPos is the distance from the left edge of the
+ // area to the left edge of the box and cue.size is the distance extending to
+ // the right from there.
+ if (cue.vertical === "") {
+ this.applyStyles({
+ left: this.formatStyle(textPos, "%"),
+ width: this.formatStyle(cue.size, "%")
+ });
+ // Vertical box orientation; textPos is the distance from the top edge of the
+ // area to the top edge of the box and cue.size is the height extending
+ // downwards from there.
+ } else {
+ this.applyStyles({
+ top: this.formatStyle(textPos, "%"),
+ height: this.formatStyle(cue.size, "%")
+ });
+ }
+
+ this.move = function (box) {
+ this.applyStyles({
+ top: this.formatStyle(box.top, "px"),
+ bottom: this.formatStyle(box.bottom, "px"),
+ left: this.formatStyle(box.left, "px"),
+ right: this.formatStyle(box.right, "px"),
+ height: this.formatStyle(box.height, "px"),
+ width: this.formatStyle(box.width, "px")
+ });
+ };
+ }
+ CueStyleBox.prototype = _objCreate(StyleBox.prototype);
+ CueStyleBox.prototype.constructor = CueStyleBox;
+
+ // Represents the co-ordinates of an Element in a way that we can easily
+ // compute things with such as if it overlaps or intersects with another Element.
+ // Can initialize it with either a StyleBox or another BoxPosition.
+ function BoxPosition(obj) {
+ // Either a BoxPosition was passed in and we need to copy it, or a StyleBox
+ // was passed in and we need to copy the results of 'getBoundingClientRect'
+ // as the object returned is readonly. All co-ordinate values are in reference
+ // to the viewport origin (top left).
+ var lh, height, width, top;
+ if (obj.div) {
+ height = obj.div.offsetHeight;
+ width = obj.div.offsetWidth;
+ top = obj.div.offsetTop;
+
+ var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();
+ obj = obj.div.getBoundingClientRect();
+ // In certain cases the outter div will be slightly larger then the sum of
+ // the inner div's lines. This could be due to bold text, etc, on some platforms.
+ // In this case we should get the average line height and use that. This will
+ // result in the desired behaviour.
+ lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;
+ }
+ this.left = obj.left;
+ this.right = obj.right;
+ this.top = obj.top || top;
+ this.height = obj.height || height;
+ this.bottom = obj.bottom || top + (obj.height || height);
+ this.width = obj.width || width;
+ this.lineHeight = lh !== undefined ? lh : obj.lineHeight;
+ }
+
+ // Move the box along a particular axis. Optionally pass in an amount to move
+ // the box. If no amount is passed then the default is the line height of the
+ // box.
+ BoxPosition.prototype.move = function (axis, toMove) {
+ toMove = toMove !== undefined ? toMove : this.lineHeight;
+ switch (axis) {
+ case "+x":
+ this.left += toMove;
+ this.right += toMove;
+ break;
+ case "-x":
+ this.left -= toMove;
+ this.right -= toMove;
+ break;
+ case "+y":
+ this.top += toMove;
+ this.bottom += toMove;
+ break;
+ case "-y":
+ this.top -= toMove;
+ this.bottom -= toMove;
+ break;
+ }
+ };
+
+ // Check if this box overlaps another box, b2.
+ BoxPosition.prototype.overlaps = function (b2) {
+ return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;
+ };
+
+ // Check if this box overlaps any other boxes in boxes.
+ BoxPosition.prototype.overlapsAny = function (boxes) {
+ for (var i = 0; i < boxes.length; i++) {
+ if (this.overlaps(boxes[i])) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ // Check if this box is within another box.
+ BoxPosition.prototype.within = function (container) {
+ return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;
+ };
+
+ // Check if this box is entirely within the container or it is overlapping
+ // on the edge opposite of the axis direction passed. For example, if "+x" is
+ // passed and the box is overlapping on the left edge of the container, then
+ // return true.
+ BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {
+ switch (axis) {
+ case "+x":
+ return this.left < container.left;
+ case "-x":
+ return this.right > container.right;
+ case "+y":
+ return this.top < container.top;
+ case "-y":
+ return this.bottom > container.bottom;
+ }
+ };
+
+ // Find the percentage of the area that this box is overlapping with another
+ // box.
+ BoxPosition.prototype.intersectPercentage = function (b2) {
+ var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),
+ y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),
+ intersectArea = x * y;
+ return intersectArea / (this.height * this.width);
+ };
+
+ // Convert the positions from this box to CSS compatible positions using
+ // the reference container's positions. This has to be done because this
+ // box's positions are in reference to the viewport origin, whereas, CSS
+ // values are in referecne to their respective edges.
+ BoxPosition.prototype.toCSSCompatValues = function (reference) {
+ return {
+ top: this.top - reference.top,
+ bottom: reference.bottom - this.bottom,
+ left: this.left - reference.left,
+ right: reference.right - this.right,
+ height: this.height,
+ width: this.width
+ };
+ };
+
+ // Get an object that represents the box's position without anything extra.
+ // Can pass a StyleBox, HTMLElement, or another BoxPositon.
+ BoxPosition.getSimpleBoxPosition = function (obj) {
+ var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;
+ var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;
+ var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;
+
+ obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;
+ var ret = {
+ left: obj.left,
+ right: obj.right,
+ top: obj.top || top,
+ height: obj.height || height,
+ bottom: obj.bottom || top + (obj.height || height),
+ width: obj.width || width
+ };
+ return ret;
+ };
+
+ // Move a StyleBox to its specified, or next best, position. The containerBox
+ // is the box that contains the StyleBox, such as a div. boxPositions are
+ // a list of other boxes that the styleBox can't overlap with.
+ function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {
+
+ // Find the best position for a cue box, b, on the video. The axis parameter
+ // is a list of axis, the order of which, it will move the box along. For example:
+ // Passing ["+x", "-x"] will move the box first along the x axis in the positive
+ // direction. If it doesn't find a good position for it there it will then move
+ // it along the x axis in the negative direction.
+ function findBestPosition(b, axis) {
+ var bestPosition,
+ specifiedPosition = new BoxPosition(b),
+ percentage = 1; // Highest possible so the first thing we get is better.
+
+ for (var i = 0; i < axis.length; i++) {
+ while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {
+ b.move(axis[i]);
+ }
+ // We found a spot where we aren't overlapping anything. This is our
+ // best position.
+ if (b.within(containerBox)) {
+ return b;
+ }
+ var p = b.intersectPercentage(containerBox);
+ // If we're outside the container box less then we were on our last try
+ // then remember this position as the best position.
+ if (percentage > p) {
+ bestPosition = new BoxPosition(b);
+ percentage = p;
+ }
+ // Reset the box position to the specified position.
+ b = new BoxPosition(specifiedPosition);
+ }
+ return bestPosition || specifiedPosition;
+ }
+
+ var boxPosition = new BoxPosition(styleBox),
+ cue = styleBox.cue,
+ linePos = computeLinePos(cue),
+ axis = [];
+
+ // If we have a line number to align the cue to.
+ if (cue.snapToLines) {
+ var size;
+ switch (cue.vertical) {
+ case "":
+ axis = ["+y", "-y"];
+ size = "height";
+ break;
+ case "rl":
+ axis = ["+x", "-x"];
+ size = "width";
+ break;
+ case "lr":
+ axis = ["-x", "+x"];
+ size = "width";
+ break;
+ }
+
+ var step = boxPosition.lineHeight,
+ position = step * Math.round(linePos),
+ maxPosition = containerBox[size] + step,
+ initialAxis = axis[0];
+
+ // If the specified intial position is greater then the max position then
+ // clamp the box to the amount of steps it would take for the box to
+ // reach the max position.
+ if (Math.abs(position) > maxPosition) {
+ position = position < 0 ? -1 : 1;
+ position *= Math.ceil(maxPosition / step) * step;
+ }
+
+ // If computed line position returns negative then line numbers are
+ // relative to the bottom of the video instead of the top. Therefore, we
+ // need to increase our initial position by the length or width of the
+ // video, depending on the writing direction, and reverse our axis directions.
+ if (linePos < 0) {
+ position += cue.vertical === "" ? containerBox.height : containerBox.width;
+ axis = axis.reverse();
+ }
+
+ // Move the box to the specified position. This may not be its best
+ // position.
+ boxPosition.move(initialAxis, position);
+ } else {
+ // If we have a percentage line value for the cue.
+ var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;
+
+ switch (cue.lineAlign) {
+ case "middle":
+ linePos -= calculatedPercentage / 2;
+ break;
+ case "end":
+ linePos -= calculatedPercentage;
+ break;
+ }
+
+ // Apply initial line position to the cue box.
+ switch (cue.vertical) {
+ case "":
+ styleBox.applyStyles({
+ top: styleBox.formatStyle(linePos, "%")
+ });
+ break;
+ case "rl":
+ styleBox.applyStyles({
+ left: styleBox.formatStyle(linePos, "%")
+ });
+ break;
+ case "lr":
+ styleBox.applyStyles({
+ right: styleBox.formatStyle(linePos, "%")
+ });
+ break;
+ }
+
+ axis = ["+y", "-x", "+x", "-y"];
+
+ // Get the box position again after we've applied the specified positioning
+ // to it.
+ boxPosition = new BoxPosition(styleBox);
+ }
+
+ var bestPosition = findBestPosition(boxPosition, axis);
+ styleBox.move(bestPosition.toCSSCompatValues(containerBox));
+ }
+
+ function WebVTT$1() {}
+ // Nothing
+
+
+ // Helper to allow strings to be decoded instead of the default binary utf8 data.
+ WebVTT$1.StringDecoder = function () {
+ return {
+ decode: function decode(data) {
+ if (!data) {
+ return "";
+ }
+ if (typeof data !== "string") {
+ throw new Error("Error - expected string data.");
+ }
+ return decodeURIComponent(encodeURIComponent(data));
+ }
+ };
+ };
+
+ WebVTT$1.convertCueToDOMTree = function (window, cuetext) {
+ if (!window || !cuetext) {
+ return null;
+ }
+ return parseContent(window, cuetext);
+ };
+
+ var FONT_SIZE_PERCENT = 0.05;
+ var FONT_STYLE = "sans-serif";
+ var CUE_BACKGROUND_PADDING = "1.5%";
+
+ // Runs the processing model over the cues and regions passed to it.
+ // @param overlay A block level element (usually a div) that the computed cues
+ // and regions will be placed into.
+ WebVTT$1.processCues = function (window, cues, overlay) {
+ if (!window || !cues || !overlay) {
+ return null;
+ }
+
+ // Remove all previous children.
+ while (overlay.firstChild) {
+ overlay.removeChild(overlay.firstChild);
+ }
+
+ var paddedOverlay = window.document.createElement("div");
+ paddedOverlay.style.position = "absolute";
+ paddedOverlay.style.left = "0";
+ paddedOverlay.style.right = "0";
+ paddedOverlay.style.top = "0";
+ paddedOverlay.style.bottom = "0";
+ paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;
+ overlay.appendChild(paddedOverlay);
+
+ // Determine if we need to compute the display states of the cues. This could
+ // be the case if a cue's state has been changed since the last computation or
+ // if it has not been computed yet.
+ function shouldCompute(cues) {
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i].hasBeenReset || !cues[i].displayState) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ // We don't need to recompute the cues' display states. Just reuse them.
+ if (!shouldCompute(cues)) {
+ for (var i = 0; i < cues.length; i++) {
+ paddedOverlay.appendChild(cues[i].displayState);
+ }
+ return;
+ }
+
+ var boxPositions = [],
+ containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),
+ fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;
+ var styleOptions = {
+ font: fontSize + "px " + FONT_STYLE
+ };
+
+ (function () {
+ var styleBox, cue;
+
+ for (var i = 0; i < cues.length; i++) {
+ cue = cues[i];
+
+ // Compute the intial position and styles of the cue div.
+ styleBox = new CueStyleBox(window, cue, styleOptions);
+ paddedOverlay.appendChild(styleBox.div);
+
+ // Move the cue div to it's correct line position.
+ moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);
+
+ // Remember the computed div so that we don't have to recompute it later
+ // if we don't have too.
+ cue.displayState = styleBox.div;
+
+ boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));
+ }
+ })();
+ };
+
+ WebVTT$1.Parser = function (window, vttjs, decoder) {
+ if (!decoder) {
+ decoder = vttjs;
+ vttjs = {};
+ }
+ if (!vttjs) {
+ vttjs = {};
+ }
+
+ this.window = window;
+ this.vttjs = vttjs;
+ this.state = "INITIAL";
+ this.buffer = "";
+ this.decoder = decoder || new TextDecoder("utf8");
+ this.regionList = [];
+ };
+
+ WebVTT$1.Parser.prototype = {
+ // If the error is a ParsingError then report it to the consumer if
+ // possible. If it's not a ParsingError then throw it like normal.
+ reportOrThrowError: function reportOrThrowError(e) {
+ if (e instanceof ParsingError) {
+ this.onparsingerror && this.onparsingerror(e);
+ } else {
+ throw e;
+ }
+ },
+ parse: function parse(data) {
+ var self = this;
+
+ // If there is no data then we won't decode it, but will just try to parse
+ // whatever is in buffer already. This may occur in circumstances, for
+ // example when flush() is called.
+ if (data) {
+ // Try to decode the data that we received.
+ self.buffer += self.decoder.decode(data, { stream: true });
+ }
+
+ function collectNextLine() {
+ var buffer = self.buffer;
+ var pos = 0;
+ while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
+ ++pos;
+ }
+ var line = buffer.substr(0, pos);
+ // Advance the buffer early in case we fail below.
+ if (buffer[pos] === '\r') {
+ ++pos;
+ }
+ if (buffer[pos] === '\n') {
+ ++pos;
+ }
+ self.buffer = buffer.substr(pos);
+ return line;
+ }
+
+ // 3.4 WebVTT region and WebVTT region settings syntax
+ function parseRegion(input) {
+ var settings = new Settings();
+
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "id":
+ settings.set(k, v);
+ break;
+ case "width":
+ settings.percent(k, v);
+ break;
+ case "lines":
+ settings.integer(k, v);
+ break;
+ case "regionanchor":
+ case "viewportanchor":
+ var xy = v.split(',');
+ if (xy.length !== 2) {
+ break;
+ }
+ // We have to make sure both x and y parse, so use a temporary
+ // settings object here.
+ var anchor = new Settings();
+ anchor.percent("x", xy[0]);
+ anchor.percent("y", xy[1]);
+ if (!anchor.has("x") || !anchor.has("y")) {
+ break;
+ }
+ settings.set(k + "X", anchor.get("x"));
+ settings.set(k + "Y", anchor.get("y"));
+ break;
+ case "scroll":
+ settings.alt(k, v, ["up"]);
+ break;
+ }
+ }, /=/, /\s/);
+
+ // Create the region, using default values for any values that were not
+ // specified.
+ if (settings.has("id")) {
+ var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();
+ region.width = settings.get("width", 100);
+ region.lines = settings.get("lines", 3);
+ region.regionAnchorX = settings.get("regionanchorX", 0);
+ region.regionAnchorY = settings.get("regionanchorY", 100);
+ region.viewportAnchorX = settings.get("viewportanchorX", 0);
+ region.viewportAnchorY = settings.get("viewportanchorY", 100);
+ region.scroll = settings.get("scroll", "");
+ // Register the region.
+ self.onregion && self.onregion(region);
+ // Remember the VTTRegion for later in case we parse any VTTCues that
+ // reference it.
+ self.regionList.push({
+ id: settings.get("id"),
+ region: region
+ });
+ }
+ }
+
+ // draft-pantos-http-live-streaming-20
+ // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5
+ // 3.5 WebVTT
+ function parseTimestampMap(input) {
+ var settings = new Settings();
+
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "MPEGT":
+ settings.integer(k + 'S', v);
+ break;
+ case "LOCA":
+ settings.set(k + 'L', parseTimeStamp(v));
+ break;
+ }
+ }, /[^\d]:/, /,/);
+
+ self.ontimestampmap && self.ontimestampmap({
+ "MPEGTS": settings.get("MPEGTS"),
+ "LOCAL": settings.get("LOCAL")
+ });
+ }
+
+ // 3.2 WebVTT metadata header syntax
+ function parseHeader(input) {
+ if (input.match(/X-TIMESTAMP-MAP/)) {
+ // This line contains HLS X-TIMESTAMP-MAP metadata
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "X-TIMESTAMP-MAP":
+ parseTimestampMap(v);
+ break;
+ }
+ }, /=/);
+ } else {
+ parseOptions(input, function (k, v) {
+ switch (k) {
+ case "Region":
+ // 3.3 WebVTT region metadata header syntax
+ parseRegion(v);
+ break;
+ }
+ }, /:/);
+ }
+ }
+
+ // 5.1 WebVTT file parsing.
+ try {
+ var line;
+ if (self.state === "INITIAL") {
+ // We can't start parsing until we have the first line.
+ if (!/\r\n|\n/.test(self.buffer)) {
+ return this;
+ }
+
+ line = collectNextLine();
+
+ var m = line.match(/^WEBVTT([ \t].*)?$/);
+ if (!m || !m[0]) {
+ throw new ParsingError(ParsingError.Errors.BadSignature);
+ }
+
+ self.state = "HEADER";
+ }
+
+ var alreadyCollectedLine = false;
+ while (self.buffer) {
+ // We can't parse a line until we have the full line.
+ if (!/\r\n|\n/.test(self.buffer)) {
+ return this;
+ }
+
+ if (!alreadyCollectedLine) {
+ line = collectNextLine();
+ } else {
+ alreadyCollectedLine = false;
+ }
+
+ switch (self.state) {
+ case "HEADER":
+ // 13-18 - Allow a header (metadata) under the WEBVTT line.
+ if (/:/.test(line)) {
+ parseHeader(line);
+ } else if (!line) {
+ // An empty line terminates the header and starts the body (cues).
+ self.state = "ID";
+ }
+ continue;
+ case "NOTE":
+ // Ignore NOTE blocks.
+ if (!line) {
+ self.state = "ID";
+ }
+ continue;
+ case "ID":
+ // Check for the start of NOTE blocks.
+ if (/^NOTE($|[ \t])/.test(line)) {
+ self.state = "NOTE";
+ break;
+ }
+ // 19-29 - Allow any number of line terminators, then initialize new cue values.
+ if (!line) {
+ continue;
+ }
+ self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, "");
+ self.state = "CUE";
+ // 30-39 - Check if self line contains an optional identifier or timing data.
+ if (line.indexOf("-->") === -1) {
+ self.cue.id = line;
+ continue;
+ }
+ // Process line as start of a cue.
+ /*falls through*/
+ case "CUE":
+ // 40 - Collect cue timings and settings.
+ try {
+ parseCue(line, self.cue, self.regionList);
+ } catch (e) {
+ self.reportOrThrowError(e);
+ // In case of an error ignore rest of the cue.
+ self.cue = null;
+ self.state = "BADCUE";
+ continue;
+ }
+ self.state = "CUETEXT";
+ continue;
+ case "CUETEXT":
+ var hasSubstring = line.indexOf("-->") !== -1;
+ // 34 - If we have an empty line then report the cue.
+ // 35 - If we have the special substring '-->' then report the cue,
+ // but do not collect the line as we need to process the current
+ // one as a new cue.
+ if (!line || hasSubstring && (alreadyCollectedLine = true)) {
+ // We are done parsing self cue.
+ self.oncue && self.oncue(self.cue);
+ self.cue = null;
+ self.state = "ID";
+ continue;
+ }
+ if (self.cue.text) {
+ self.cue.text += "\n";
+ }
+ self.cue.text += line;
+ continue;
+ case "BADCUE":
+ // BADCUE
+ // 54-62 - Collect and discard the remaining cue.
+ if (!line) {
+ self.state = "ID";
+ }
+ continue;
+ }
+ }
+ } catch (e) {
+ self.reportOrThrowError(e);
+
+ // If we are currently parsing a cue, report what we have.
+ if (self.state === "CUETEXT" && self.cue && self.oncue) {
+ self.oncue(self.cue);
+ }
+ self.cue = null;
+ // Enter BADWEBVTT state if header was not parsed correctly otherwise
+ // another exception occurred so enter BADCUE state.
+ self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE";
+ }
+ return this;
+ },
+ flush: function flush() {
+ var self = this;
+ try {
+ // Finish decoding the stream.
+ self.buffer += self.decoder.decode();
+ // Synthesize the end of the current cue or region.
+ if (self.cue || self.state === "HEADER") {
+ self.buffer += "\n\n";
+ self.parse();
+ }
+ // If we've flushed, parsed, and we're still on the INITIAL state then
+ // that means we don't have enough of the stream to parse the first
+ // line.
+ if (self.state === "INITIAL") {
+ throw new ParsingError(ParsingError.Errors.BadSignature);
+ }
+ } catch (e) {
+ self.reportOrThrowError(e);
+ }
+ self.onflush && self.onflush();
+ return this;
+ }
+ };
+
+ var vtt = WebVTT$1;
+
+ var vtt$1 = /*#__PURE__*/Object.freeze({
+ default: vtt,
+ __moduleExports: vtt
+ });
+
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ var autoKeyword = "auto";
+ var directionSetting = {
+ "": 1,
+ "lr": 1,
+ "rl": 1
+ };
+ var alignSetting = {
+ "start": 1,
+ "middle": 1,
+ "end": 1,
+ "left": 1,
+ "right": 1
+ };
+
+ function findDirectionSetting(value) {
+ if (typeof value !== "string") {
+ return false;
+ }
+ var dir = directionSetting[value.toLowerCase()];
+ return dir ? value.toLowerCase() : false;
+ }
+
+ function findAlignSetting(value) {
+ if (typeof value !== "string") {
+ return false;
+ }
+ var align = alignSetting[value.toLowerCase()];
+ return align ? value.toLowerCase() : false;
+ }
+
+ function VTTCue(startTime, endTime, text) {
+ /**
+ * Shim implementation specific properties. These properties are not in
+ * the spec.
+ */
+
+ // Lets us know when the VTTCue's data has changed in such a way that we need
+ // to recompute its display state. This lets us compute its display state
+ // lazily.
+ this.hasBeenReset = false;
+
+ /**
+ * VTTCue and TextTrackCue properties
+ * http://dev.w3.org/html5/webvtt/#vttcue-interface
+ */
+
+ var _id = "";
+ var _pauseOnExit = false;
+ var _startTime = startTime;
+ var _endTime = endTime;
+ var _text = text;
+ var _region = null;
+ var _vertical = "";
+ var _snapToLines = true;
+ var _line = "auto";
+ var _lineAlign = "start";
+ var _position = 50;
+ var _positionAlign = "middle";
+ var _size = 50;
+ var _align = "middle";
+
+ Object.defineProperties(this, {
+ "id": {
+ enumerable: true,
+ get: function get() {
+ return _id;
+ },
+ set: function set(value) {
+ _id = "" + value;
+ }
+ },
+
+ "pauseOnExit": {
+ enumerable: true,
+ get: function get() {
+ return _pauseOnExit;
+ },
+ set: function set(value) {
+ _pauseOnExit = !!value;
+ }
+ },
+
+ "startTime": {
+ enumerable: true,
+ get: function get() {
+ return _startTime;
+ },
+ set: function set(value) {
+ if (typeof value !== "number") {
+ throw new TypeError("Start time must be set to a number.");
+ }
+ _startTime = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "endTime": {
+ enumerable: true,
+ get: function get() {
+ return _endTime;
+ },
+ set: function set(value) {
+ if (typeof value !== "number") {
+ throw new TypeError("End time must be set to a number.");
+ }
+ _endTime = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "text": {
+ enumerable: true,
+ get: function get() {
+ return _text;
+ },
+ set: function set(value) {
+ _text = "" + value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "region": {
+ enumerable: true,
+ get: function get() {
+ return _region;
+ },
+ set: function set(value) {
+ _region = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "vertical": {
+ enumerable: true,
+ get: function get() {
+ return _vertical;
+ },
+ set: function set(value) {
+ var setting = findDirectionSetting(value);
+ // Have to check for false because the setting an be an empty string.
+ if (setting === false) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _vertical = setting;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "snapToLines": {
+ enumerable: true,
+ get: function get() {
+ return _snapToLines;
+ },
+ set: function set(value) {
+ _snapToLines = !!value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "line": {
+ enumerable: true,
+ get: function get() {
+ return _line;
+ },
+ set: function set(value) {
+ if (typeof value !== "number" && value !== autoKeyword) {
+ throw new SyntaxError("An invalid number or illegal string was specified.");
+ }
+ _line = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "lineAlign": {
+ enumerable: true,
+ get: function get() {
+ return _lineAlign;
+ },
+ set: function set(value) {
+ var setting = findAlignSetting(value);
+ if (!setting) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _lineAlign = setting;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "position": {
+ enumerable: true,
+ get: function get() {
+ return _position;
+ },
+ set: function set(value) {
+ if (value < 0 || value > 100) {
+ throw new Error("Position must be between 0 and 100.");
+ }
+ _position = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "positionAlign": {
+ enumerable: true,
+ get: function get() {
+ return _positionAlign;
+ },
+ set: function set(value) {
+ var setting = findAlignSetting(value);
+ if (!setting) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _positionAlign = setting;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "size": {
+ enumerable: true,
+ get: function get() {
+ return _size;
+ },
+ set: function set(value) {
+ if (value < 0 || value > 100) {
+ throw new Error("Size must be between 0 and 100.");
+ }
+ _size = value;
+ this.hasBeenReset = true;
+ }
+ },
+
+ "align": {
+ enumerable: true,
+ get: function get() {
+ return _align;
+ },
+ set: function set(value) {
+ var setting = findAlignSetting(value);
+ if (!setting) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _align = setting;
+ this.hasBeenReset = true;
+ }
+ }
+ });
+
+ /**
+ * Other <track> spec defined properties
+ */
+
+ // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state
+ this.displayState = undefined;
+ }
+
+ /**
+ * VTTCue methods
+ */
+
+ VTTCue.prototype.getCueAsHTML = function () {
+ // Assume WebVTT.convertCueToDOMTree is on the global.
+ return WebVTT.convertCueToDOMTree(window, this.text);
+ };
+
+ var vttcue = VTTCue;
+
+ var vttcue$1 = /*#__PURE__*/Object.freeze({
+ default: vttcue,
+ __moduleExports: vttcue
+ });
+
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ var scrollSetting = {
+ "": true,
+ "up": true
+ };
+
+ function findScrollSetting(value) {
+ if (typeof value !== "string") {
+ return false;
+ }
+ var scroll = scrollSetting[value.toLowerCase()];
+ return scroll ? value.toLowerCase() : false;
+ }
+
+ function isValidPercentValue(value) {
+ return typeof value === "number" && value >= 0 && value <= 100;
+ }
+
+ // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface
+ function VTTRegion() {
+ var _width = 100;
+ var _lines = 3;
+ var _regionAnchorX = 0;
+ var _regionAnchorY = 100;
+ var _viewportAnchorX = 0;
+ var _viewportAnchorY = 100;
+ var _scroll = "";
+
+ Object.defineProperties(this, {
+ "width": {
+ enumerable: true,
+ get: function get() {
+ return _width;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("Width must be between 0 and 100.");
+ }
+ _width = value;
+ }
+ },
+ "lines": {
+ enumerable: true,
+ get: function get() {
+ return _lines;
+ },
+ set: function set(value) {
+ if (typeof value !== "number") {
+ throw new TypeError("Lines must be set to a number.");
+ }
+ _lines = value;
+ }
+ },
+ "regionAnchorY": {
+ enumerable: true,
+ get: function get() {
+ return _regionAnchorY;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("RegionAnchorX must be between 0 and 100.");
+ }
+ _regionAnchorY = value;
+ }
+ },
+ "regionAnchorX": {
+ enumerable: true,
+ get: function get() {
+ return _regionAnchorX;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("RegionAnchorY must be between 0 and 100.");
+ }
+ _regionAnchorX = value;
+ }
+ },
+ "viewportAnchorY": {
+ enumerable: true,
+ get: function get() {
+ return _viewportAnchorY;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("ViewportAnchorY must be between 0 and 100.");
+ }
+ _viewportAnchorY = value;
+ }
+ },
+ "viewportAnchorX": {
+ enumerable: true,
+ get: function get() {
+ return _viewportAnchorX;
+ },
+ set: function set(value) {
+ if (!isValidPercentValue(value)) {
+ throw new Error("ViewportAnchorX must be between 0 and 100.");
+ }
+ _viewportAnchorX = value;
+ }
+ },
+ "scroll": {
+ enumerable: true,
+ get: function get() {
+ return _scroll;
+ },
+ set: function set(value) {
+ var setting = findScrollSetting(value);
+ // Have to check for false as an empty string is a legal value.
+ if (setting === false) {
+ throw new SyntaxError("An invalid or illegal string was specified.");
+ }
+ _scroll = setting;
+ }
+ }
+ });
+ }
+
+ var vttregion = VTTRegion;
+
+ var vttregion$1 = /*#__PURE__*/Object.freeze({
+ default: vttregion,
+ __moduleExports: vttregion
+ });
+
+ var require$$0 = ( vtt$1 && vtt ) || vtt$1;
+
+ var require$$1 = ( vttcue$1 && vttcue ) || vttcue$1;
+
+ var require$$2 = ( vttregion$1 && vttregion ) || vttregion$1;
+
+ var browserIndex = createCommonjsModule(function (module) {
+ /**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ // Default exports for Node. Export the extended versions of VTTCue and
+ // VTTRegion in Node since we likely want the capability to convert back and
+ // forth between JSON. If we don't then it's not that big of a deal since we're
+ // off browser.
+
+
+ var vttjs = module.exports = {
+ WebVTT: require$$0,
+ VTTCue: require$$1,
+ VTTRegion: require$$2
+ };
+
+ window_1.vttjs = vttjs;
+ window_1.WebVTT = vttjs.WebVTT;
+
+ var cueShim = vttjs.VTTCue;
+ var regionShim = vttjs.VTTRegion;
+ var nativeVTTCue = window_1.VTTCue;
+ var nativeVTTRegion = window_1.VTTRegion;
+
+ vttjs.shim = function () {
+ window_1.VTTCue = cueShim;
+ window_1.VTTRegion = regionShim;
+ };
+
+ vttjs.restore = function () {
+ window_1.VTTCue = nativeVTTCue;
+ window_1.VTTRegion = nativeVTTRegion;
+ };
+
+ if (!window_1.VTTCue) {
+ vttjs.shim();
+ }
+ });
+ var browserIndex_1 = browserIndex.WebVTT;
+ var browserIndex_2 = browserIndex.VTTCue;
+ var browserIndex_3 = browserIndex.VTTRegion;
+
+ /**
+ * @file tech.js
+ */
+
+ /**
+ * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+ * that just contains the src url alone.
+ * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+ * `var SourceString = 'http://example.com/some-video.mp4';`
+ *
+ * @typedef {Object|string} Tech~SourceObject
+ *
+ * @property {string} src
+ * The url to the source
+ *
+ * @property {string} type
+ * The mime type of the source
+ */
+
+ /**
+ * A function used by {@link Tech} to create a new {@link TextTrack}.
+ *
+ * @private
+ *
+ * @param {Tech} self
+ * An instance of the Tech class.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @param {Object} [options={}]
+ * An object with additional text track options
+ *
+ * @return {TextTrack}
+ * The text track that was created.
+ */
+ function createTrackHelper(self, kind, label, language) {
+ var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
+
+ var tracks = self.textTracks();
+
+ options.kind = kind;
+
+ if (label) {
+ options.label = label;
+ }
+ if (language) {
+ options.language = language;
+ }
+ options.tech = self;
+
+ var track = new ALL.text.TrackClass(options);
+
+ tracks.addTrack(track);
+
+ return track;
+ }
+
+ /**
+ * This is the base class for media playback technology controllers, such as
+ * {@link Flash} and {@link HTML5}
+ *
+ * @extends Component
+ */
+
+ var Tech = function (_Component) {
+ inherits(Tech, _Component);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Tech() {
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};
+ classCallCheck(this, Tech);
+
+ // we don't want the tech to report user activity automatically.
+ // This is done manually in addControlsListeners
+ options.reportTouchActivity = false;
+
+ // keep track of whether the current source has played at all to
+ // implement a very limited played()
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.hasStarted_ = false;
+ _this.on('playing', function () {
+ this.hasStarted_ = true;
+ });
+ _this.on('loadstart', function () {
+ this.hasStarted_ = false;
+ });
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ if (options && options[props.getterName]) {
+ _this[props.privateName] = options[props.getterName];
+ }
+ });
+
+ // Manually track progress in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresProgressEvents) {
+ _this.manualProgressOn();
+ }
+
+ // Manually track timeupdates in cases where the browser/flash player doesn't report it.
+ if (!_this.featuresTimeupdateEvents) {
+ _this.manualTimeUpdatesOn();
+ }
+
+ ['Text', 'Audio', 'Video'].forEach(function (track) {
+ if (options['native' + track + 'Tracks'] === false) {
+ _this['featuresNative' + track + 'Tracks'] = false;
+ }
+ });
+
+ if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+ _this.featuresNativeTextTracks = false;
+ } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+ _this.featuresNativeTextTracks = true;
+ }
+
+ if (!_this.featuresNativeTextTracks) {
+ _this.emulateTextTracks();
+ }
+
+ _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+
+ _this.initTrackListeners();
+
+ // Turn on component tap events only if not using native controls
+ if (!options.nativeControlsForTouch) {
+ _this.emitTapEvents();
+ }
+
+ if (_this.constructor) {
+ _this.name_ = _this.constructor.name || 'Unknown Tech';
+ }
+ return _this;
+ }
+
+ /**
+ * A special function to trigger source set in a way that will allow player
+ * to re-trigger if the player or tech are not ready yet.
+ *
+ * @fires Tech#sourceset
+ * @param {string} src The source string at the time of the source changing.
+ */
+
+
+ Tech.prototype.triggerSourceset = function triggerSourceset(src) {
+ var _this2 = this;
+
+ if (!this.isReady_) {
+ // on initial ready we have to trigger source set
+ // 1ms after ready so that player can watch for it.
+ this.one('ready', function () {
+ return _this2.setTimeout(function () {
+ return _this2.triggerSourceset(src);
+ }, 1);
+ });
+ }
+
+ /**
+ * Fired when the source is set on the tech causing the media element
+ * to reload.
+ *
+ * @see {@link Player#event:sourceset}
+ * @event Tech#sourceset
+ * @type {EventTarget~Event}
+ */
+ this.trigger({
+ src: src,
+ type: 'sourceset'
+ });
+ };
+
+ /* Fallbacks for unsupported event types
+ ================================================================================ */
+
+ /**
+ * Polyfill the `progress` event for browsers that don't support it natively.
+ *
+ * @see {@link Tech#trackProgress}
+ */
+
+
+ Tech.prototype.manualProgressOn = function manualProgressOn() {
+ this.on('durationchange', this.onDurationChange);
+
+ this.manualProgress = true;
+
+ // Trigger progress watching when a source begins loading
+ this.one('ready', this.trackProgress);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ */
+
+
+ Tech.prototype.manualProgressOff = function manualProgressOff() {
+ this.manualProgress = false;
+ this.stopTrackingProgress();
+
+ this.off('durationchange', this.onDurationChange);
+ };
+
+ /**
+ * This is used to trigger a `progress` event when the buffered percent changes. It
+ * sets an interval function that will be called every 500 milliseconds to check if the
+ * buffer end percent has changed.
+ *
+ * > This function is called by {@link Tech#manualProgressOn}
+ *
+ * @param {EventTarget~Event} event
+ * The `ready` event that caused this to run.
+ *
+ * @listens Tech#ready
+ * @fires Tech#progress
+ */
+
+
+ Tech.prototype.trackProgress = function trackProgress(event) {
+ this.stopTrackingProgress();
+ this.progressInterval = this.setInterval(bind(this, function () {
+ // Don't trigger unless buffered amount is greater than last time
+
+ var numBufferedPercent = this.bufferedPercent();
+
+ if (this.bufferedPercent_ !== numBufferedPercent) {
+ /**
+ * See {@link Player#progress}
+ *
+ * @event Tech#progress
+ * @type {EventTarget~Event}
+ */
+ this.trigger('progress');
+ }
+
+ this.bufferedPercent_ = numBufferedPercent;
+
+ if (numBufferedPercent === 1) {
+ this.stopTrackingProgress();
+ }
+ }), 500);
+ };
+
+ /**
+ * Update our internal duration on a `durationchange` event by calling
+ * {@link Tech#duration}.
+ *
+ * @param {EventTarget~Event} event
+ * The `durationchange` event that caused this to run.
+ *
+ * @listens Tech#durationchange
+ */
+
+
+ Tech.prototype.onDurationChange = function onDurationChange(event) {
+ this.duration_ = this.duration();
+ };
+
+ /**
+ * Get and create a `TimeRange` object for buffering.
+ *
+ * @return {TimeRange}
+ * The time range object that was created.
+ */
+
+
+ Tech.prototype.buffered = function buffered() {
+ return createTimeRanges(0, 0);
+ };
+
+ /**
+ * Get the percentage of the current video that is currently buffered.
+ *
+ * @return {number}
+ * A number from 0 to 1 that represents the decimal percentage of the
+ * video that is buffered.
+ *
+ */
+
+
+ Tech.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration_);
+ };
+
+ /**
+ * Turn off the polyfill for `progress` events that was created in
+ * {@link Tech#manualProgressOn}
+ * Stop manually tracking progress events by clearing the interval that was set in
+ * {@link Tech#trackProgress}.
+ */
+
+
+ Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {
+ this.clearInterval(this.progressInterval);
+ };
+
+ /**
+ * Polyfill the `timeupdate` event for browsers that don't support it.
+ *
+ * @see {@link Tech#trackCurrentTime}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
+ this.manualTimeUpdates = true;
+
+ this.on('play', this.trackCurrentTime);
+ this.on('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Turn off the polyfill for `timeupdate` events that was created in
+ * {@link Tech#manualTimeUpdatesOn}
+ */
+
+
+ Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
+ this.manualTimeUpdates = false;
+ this.stopTrackingCurrentTime();
+ this.off('play', this.trackCurrentTime);
+ this.off('pause', this.stopTrackingCurrentTime);
+ };
+
+ /**
+ * Sets up an interval function to track current time and trigger `timeupdate` every
+ * 250 milliseconds.
+ *
+ * @listens Tech#play
+ * @triggers Tech#timeupdate
+ */
+
+
+ Tech.prototype.trackCurrentTime = function trackCurrentTime() {
+ if (this.currentTimeInterval) {
+ this.stopTrackingCurrentTime();
+ }
+ this.currentTimeInterval = this.setInterval(function () {
+ /**
+ * Triggered at an interval of 250ms to indicated that time is passing in the video.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ }, 250);
+ };
+
+ /**
+ * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+ * `timeupdate` event is no longer triggered.
+ *
+ * @listens {Tech#pause}
+ */
+
+
+ Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
+ this.clearInterval(this.currentTimeInterval);
+
+ // #1002 - if the video ends right before the next timeupdate would happen,
+ // the progress bar won't make it all the way to the end
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ };
+
+ /**
+ * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+ * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+ *
+ * @fires Component#dispose
+ */
+
+
+ Tech.prototype.dispose = function dispose() {
+
+ // clear out all tracks because we can't reuse them between techs
+ this.clearTracks(NORMAL.names);
+
+ // Turn off any manual progress or timeupdate tracking
+ if (this.manualProgress) {
+ this.manualProgressOff();
+ }
+
+ if (this.manualTimeUpdates) {
+ this.manualTimeUpdatesOff();
+ }
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+ *
+ * > Note: Techs without source handlers should call this between sources for `video`
+ * & `audio` tracks. You don't want to use them between tracks!
+ *
+ * @param {string[]|string} types
+ * TrackList names to clear, valid names are `video`, `audio`, and
+ * `text`.
+ */
+
+
+ Tech.prototype.clearTracks = function clearTracks(types) {
+ var _this3 = this;
+
+ types = [].concat(types);
+ // clear out all tracks because we can't reuse them between techs
+ types.forEach(function (type) {
+ var list = _this3[type + 'Tracks']() || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ if (type === 'text') {
+ _this3.removeRemoteTextTrack(track);
+ }
+ list.removeTrack(track);
+ }
+ });
+ };
+
+ /**
+ * Remove any TextTracks added via addRemoteTextTrack that are
+ * flagged for automatic garbage collection
+ */
+
+
+ Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
+ var list = this.autoRemoteTextTracks_ || [];
+ var i = list.length;
+
+ while (i--) {
+ var track = list[i];
+
+ this.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Reset the tech, which will removes all sources and reset the internal readyState.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.reset = function reset() {};
+
+ /**
+ * Get or set an error on the Tech.
+ *
+ * @param {MediaError} [err]
+ * Error to set on the Tech
+ *
+ * @return {MediaError|null}
+ * The current error object on the tech, or null if there isn't one.
+ */
+
+
+ Tech.prototype.error = function error(err) {
+ if (err !== undefined) {
+ this.error_ = new MediaError(err);
+ this.trigger('error');
+ }
+ return this.error_;
+ };
+
+ /**
+ * Returns the `TimeRange`s that have been played through for the current source.
+ *
+ * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+ * It only checks whether the source has played at all or not.
+ *
+ * @return {TimeRange}
+ * - A single time range if this video has played
+ * - An empty set of ranges if not.
+ */
+
+
+ Tech.prototype.played = function played() {
+ if (this.hasStarted_) {
+ return createTimeRanges(0, 0);
+ }
+ return createTimeRanges();
+ };
+
+ /**
+ * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+ * previously called.
+ *
+ * @fires Tech#timeupdate
+ */
+
+
+ Tech.prototype.setCurrentTime = function setCurrentTime() {
+ // improve the accuracy of manual timeupdates
+ if (this.manualTimeUpdates) {
+ /**
+ * A manual `timeupdate` event.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ }
+ };
+
+ /**
+ * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+ * {@link TextTrackList} events.
+ *
+ * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.
+ *
+ * @fires Tech#audiotrackchange
+ * @fires Tech#videotrackchange
+ * @fires Tech#texttrackchange
+ */
+
+
+ Tech.prototype.initTrackListeners = function initTrackListeners() {
+ var _this4 = this;
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+ *
+ * @event Tech#audiotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+ *
+ * @event Tech#videotrackchange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+ *
+ * @event Tech#texttrackchange
+ * @type {EventTarget~Event}
+ */
+ NORMAL.names.forEach(function (name) {
+ var props = NORMAL[name];
+ var trackListChanges = function trackListChanges() {
+ _this4.trigger(name + 'trackchange');
+ };
+
+ var tracks = _this4[props.getterName]();
+
+ tracks.addEventListener('removetrack', trackListChanges);
+ tracks.addEventListener('addtrack', trackListChanges);
+
+ _this4.on('dispose', function () {
+ tracks.removeEventListener('removetrack', trackListChanges);
+ tracks.removeEventListener('addtrack', trackListChanges);
+ });
+ });
+ };
+
+ /**
+ * Emulate TextTracks using vtt.js if necessary
+ *
+ * @fires Tech#vttjsloaded
+ * @fires Tech#vttjserror
+ */
+
+
+ Tech.prototype.addWebVttScript_ = function addWebVttScript_() {
+ var _this5 = this;
+
+ if (window_1.WebVTT) {
+ return;
+ }
+
+ // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+ // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+ // before inserting the WebVTT script
+ if (document_1.body.contains(this.el())) {
+
+ // load via require if available and vtt.js script location was not passed in
+ // as an option. novtt builds will turn the above require call into an empty object
+ // which will cause this if check to always fail.
+ if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {
+ this.trigger('vttjsloaded');
+ return;
+ }
+
+ // load vtt.js via the script location option or the cdn of no location was
+ // passed in
+ var script = document_1.createElement('script');
+
+ script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+ script.onload = function () {
+ /**
+ * Fired when vtt.js is loaded.
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjsloaded');
+ };
+ script.onerror = function () {
+ /**
+ * Fired when vtt.js was not loaded due to an error
+ *
+ * @event Tech#vttjsloaded
+ * @type {EventTarget~Event}
+ */
+ _this5.trigger('vttjserror');
+ };
+ this.on('dispose', function () {
+ script.onload = null;
+ script.onerror = null;
+ });
+ // but have not loaded yet and we set it to true before the inject so that
+ // we don't overwrite the injected window.WebVTT if it loads right away
+ window_1.WebVTT = true;
+ this.el().parentNode.appendChild(script);
+ } else {
+ this.ready(this.addWebVttScript_);
+ }
+ };
+
+ /**
+ * Emulate texttracks
+ *
+ */
+
+
+ Tech.prototype.emulateTextTracks = function emulateTextTracks() {
+ var _this6 = this;
+
+ var tracks = this.textTracks();
+ var remoteTracks = this.remoteTextTracks();
+ var handleAddTrack = function handleAddTrack(e) {
+ return tracks.addTrack(e.track);
+ };
+ var handleRemoveTrack = function handleRemoveTrack(e) {
+ return tracks.removeTrack(e.track);
+ };
+
+ remoteTracks.on('addtrack', handleAddTrack);
+ remoteTracks.on('removetrack', handleRemoveTrack);
+
+ this.addWebVttScript_();
+
+ var updateDisplay = function updateDisplay() {
+ return _this6.trigger('texttrackchange');
+ };
+
+ var textTracksChanges = function textTracksChanges() {
+ updateDisplay();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ if (track.mode === 'showing') {
+ track.addEventListener('cuechange', updateDisplay);
+ }
+ }
+ };
+
+ textTracksChanges();
+ tracks.addEventListener('change', textTracksChanges);
+ tracks.addEventListener('addtrack', textTracksChanges);
+ tracks.addEventListener('removetrack', textTracksChanges);
+
+ this.on('dispose', function () {
+ remoteTracks.off('addtrack', handleAddTrack);
+ remoteTracks.off('removetrack', handleRemoveTrack);
+ tracks.removeEventListener('change', textTracksChanges);
+ tracks.removeEventListener('addtrack', textTracksChanges);
+ tracks.removeEventListener('removetrack', textTracksChanges);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.removeEventListener('cuechange', updateDisplay);
+ }
+ });
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!kind) {
+ throw new Error('TextTrack kind is required but was not provided');
+ }
+
+ return createTrackHelper(this, kind, label, language);
+ };
+
+ /**
+ * Create an emulated TextTrack for use by addRemoteTextTrack
+ *
+ * This is intended to be overridden by classes that inherit from
+ * Tech in order to create native or custom TextTracks.
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label].
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ var track = mergeOptions(options, {
+ tech: this
+ });
+
+ return new REMOTE.remoteTextEl.TrackClass(track);
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+ *
+ * @param {Object} options
+ * See {@link Tech#createRemoteTextTrack} for more detailed properties.
+ *
+ * @param {boolean} [manualCleanup=true]
+ * - When false: the TextTrack will be automatically removed from the video
+ * element whenever the source changes
+ * - When True: The TextTrack will have to be cleaned up manually
+ *
+ * @return {HTMLTrackElement}
+ * An Html Track Element.
+ *
+ * @deprecated The default functionality for this function will be equivalent
+ * to "manualCleanup=false" in the future. The manualCleanup parameter will
+ * also be removed.
+ */
+
+
+ Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {
+ var _this7 = this;
+
+ var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var manualCleanup = arguments[1];
+
+ var htmlTrackElement = this.createRemoteTextTrack(options);
+
+ if (manualCleanup !== true && manualCleanup !== false) {
+ // deprecation warning
+ log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
+ manualCleanup = true;
+ }
+
+ // store HTMLTrackElement and TextTrack to remote list
+ this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+ this.remoteTextTracks().addTrack(htmlTrackElement.track);
+
+ if (manualCleanup !== true) {
+ // create the TextTrackList if it doesn't exist
+ this.ready(function () {
+ return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
+ });
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove a remote text track from the remote `TextTrackList`.
+ *
+ * @param {TextTrack} track
+ * `TextTrack` to remove from the `TextTrackList`
+ */
+
+
+ Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+ // remove HTMLTrackElement and TextTrack from remote list
+ this.remoteTextTrackEls().removeTrackElement_(trackElement);
+ this.remoteTextTracks().removeTrack(track);
+ this.autoRemoteTextTracks_.removeTrack(track);
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return {};
+ };
+
+ /**
+ * A method to set a poster from a `Tech`.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPoster = function setPoster() {};
+
+ /**
+ * A method to check for the presence of the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.playsinline = function playsinline() {};
+
+ /**
+ * A method to set or unset the 'playsinline' <video> attribute.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.setPlaysinline = function setPlaysinline() {};
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks() {};
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks() {};
+
+ /*
+ * Check if the tech can support the given mime-type.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The mimetype to check for support
+ *
+ * @return {string}
+ * 'probably', 'maybe', or empty string
+ *
+ * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+ *
+ * @abstract
+ */
+
+
+ Tech.prototype.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the type is supported by this tech.
+ *
+ * The base tech does not support any type, but source handlers might
+ * overwrite this.
+ *
+ * @param {string} type
+ * The media type to check
+ * @return {string} Returns the native video element's response
+ */
+
+
+ Tech.canPlayType = function canPlayType() {
+ return '';
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Tech.canPlaySource = function canPlaySource(srcObj, options) {
+ return Tech.canPlayType(srcObj.type);
+ };
+
+ /*
+ * Return whether the argument is a Tech or not.
+ * Can be passed either a Class like `Html5` or a instance like `player.tech_`
+ *
+ * @param {Object} component
+ * The item to check
+ *
+ * @return {boolean}
+ * Whether it is a tech or not
+ * - True if it is a tech
+ * - False if it is not
+ */
+
+
+ Tech.isTech = function isTech(component) {
+ return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
+ };
+
+ /**
+ * Registers a `Tech` into a shared list for videojs.
+ *
+ * @param {string} name
+ * Name of the `Tech` to register.
+ *
+ * @param {Object} tech
+ * The `Tech` class to register.
+ */
+
+
+ Tech.registerTech = function registerTech(name, tech) {
+ if (!Tech.techs_) {
+ Tech.techs_ = {};
+ }
+
+ if (!Tech.isTech(tech)) {
+ throw new Error('Tech ' + name + ' must be a Tech');
+ }
+
+ if (!Tech.canPlayType) {
+ throw new Error('Techs must have a static canPlayType method on them');
+ }
+ if (!Tech.canPlaySource) {
+ throw new Error('Techs must have a static canPlaySource method on them');
+ }
+
+ name = toTitleCase(name);
+
+ Tech.techs_[name] = tech;
+ if (name !== 'Tech') {
+ // camel case the techName for use in techOrder
+ Tech.defaultTechOrder_.push(name);
+ }
+ return tech;
+ };
+
+ /**
+ * Get a `Tech` from the shared list by name.
+ *
+ * @param {string} name
+ * `camelCase` or `TitleCase` name of the Tech to get
+ *
+ * @return {Tech|undefined}
+ * The `Tech` or undefined if there was no tech with the name requested.
+ */
+
+
+ Tech.getTech = function getTech(name) {
+ if (!name) {
+ return;
+ }
+
+ name = toTitleCase(name);
+
+ if (Tech.techs_ && Tech.techs_[name]) {
+ return Tech.techs_[name];
+ }
+
+ if (window_1 && window_1.videojs && window_1.videojs[name]) {
+ log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');
+ return window_1.videojs[name];
+ }
+ };
+
+ return Tech;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ *
+ * @returns {VideoTrackList}
+ * @method Tech.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ *
+ * @returns {AudioTrackList}
+ * @method Tech.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.textTracks
+ */
+
+ /**
+ * Get the remote element {@link TextTrackList}
+ *
+ * @returns {TextTrackList}
+ * @method Tech.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote element {@link HtmlTrackElementList}
+ *
+ * @returns {HtmlTrackElementList}
+ * @method Tech.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name) {
+ var props = ALL[name];
+
+ Tech.prototype[props.getterName] = function () {
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * List of associated text tracks
+ *
+ * @type {TextTrackList}
+ * @private
+ * @property Tech#textTracks_
+ */
+
+ /**
+ * List of associated audio tracks.
+ *
+ * @type {AudioTrackList}
+ * @private
+ * @property Tech#audioTracks_
+ */
+
+ /**
+ * List of associated video tracks.
+ *
+ * @type {VideoTrackList}
+ * @private
+ * @property Tech#videoTracks_
+ */
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresVolumeControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default
+ */
+ Tech.prototype.featuresMuteControl = true;
+
+ /**
+ * Boolean indicating whether the `Tech` supports fullscreen resize control.
+ * Resizing plugins using request fullscreen reloads the plugin
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresFullscreenResize = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the video
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresPlaybackRate = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualProgressOn} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresProgressEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+ * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+ * a new source.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresSourceset = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
+ * not triggered by video-js-swf. This will be used to determine if
+ * {@link Tech#manualTimeUpdates} should be called.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresTimeupdateEvents = false;
+
+ /**
+ * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+ * This will help us integrate with native `TextTrack`s if the browser supports them.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Tech.prototype.featuresNativeTextTracks = false;
+
+ /**
+ * A functional mixin for techs that want to use the Source Handler pattern.
+ * Source handlers are scripts for handling specific formats.
+ * The source handler pattern is used for adaptive formats (HLS, DASH) that
+ * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+ * Example: `Tech.withSourceHandlers.call(MyTech);`
+ *
+ * @param {Tech} _Tech
+ * The tech to add source handler functions to.
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ */
+ Tech.withSourceHandlers = function (_Tech) {
+
+ /**
+ * Register a source handler
+ *
+ * @param {Function} handler
+ * The source handler class
+ *
+ * @param {number} [index]
+ * Register it at the following index
+ */
+ _Tech.registerSourceHandler = function (handler, index) {
+ var handlers = _Tech.sourceHandlers;
+
+ if (!handlers) {
+ handlers = _Tech.sourceHandlers = [];
+ }
+
+ if (index === undefined) {
+ // add to the end of the list
+ index = handlers.length;
+ }
+
+ handlers.splice(index, 0, handler);
+ };
+
+ /**
+ * Check if the tech can support the given type. Also checks the
+ * Techs sourceHandlers.
+ *
+ * @param {string} type
+ * The mimetype to check.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlayType = function (type) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Returns the first source handler that supports the source.
+ *
+ * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {SourceHandler|null}
+ * The first source handler that supports the source or null if
+ * no SourceHandler supports the source
+ */
+ _Tech.selectSourceHandler = function (source, options) {
+ var handlers = _Tech.sourceHandlers || [];
+ var can = void 0;
+
+ for (var i = 0; i < handlers.length; i++) {
+ can = handlers[i].canHandleSource(source, options);
+ if (can) {
+ return handlers[i];
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Check if the tech can support the given source.
+ *
+ * @param {Tech~SourceObject} srcObj
+ * The source object
+ *
+ * @param {Object} options
+ * The options passed to the tech
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ _Tech.canPlaySource = function (srcObj, options) {
+ var sh = _Tech.selectSourceHandler(srcObj, options);
+
+ if (sh) {
+ return sh.canHandleSource(srcObj, options);
+ }
+
+ return '';
+ };
+
+ /**
+ * When using a source handler, prefer its implementation of
+ * any function normally provided by the tech.
+ */
+ var deferrable = ['seekable', 'seeking', 'duration'];
+
+ /**
+ * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+ * function if it exists, with a fallback to the Techs seekable function.
+ *
+ * @method _Tech.seekable
+ */
+
+ /**
+ * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+ * function if it exists, otherwise it will fallback to the techs duration function.
+ *
+ * @method _Tech.duration
+ */
+
+ deferrable.forEach(function (fnName) {
+ var originalFn = this[fnName];
+
+ if (typeof originalFn !== 'function') {
+ return;
+ }
+
+ this[fnName] = function () {
+ if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+ return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+ }
+ return originalFn.apply(this, arguments);
+ };
+ }, _Tech.prototype);
+
+ /**
+ * Create a function for setting the source using a source object
+ * and source handlers.
+ * Should never be called unless a source handler was found.
+ *
+ * @param {Tech~SourceObject} source
+ * A source object with src and type keys
+ */
+ _Tech.prototype.setSource = function (source) {
+ var sh = _Tech.selectSourceHandler(source, this.options_);
+
+ if (!sh) {
+ // Fall back to a native source hander when unsupported sources are
+ // deliberately set
+ if (_Tech.nativeSourceHandler) {
+ sh = _Tech.nativeSourceHandler;
+ } else {
+ log$1.error('No source handler found for the current source.');
+ }
+ }
+
+ // Dispose any existing source handler
+ this.disposeSourceHandler();
+ this.off('dispose', this.disposeSourceHandler);
+
+ if (sh !== _Tech.nativeSourceHandler) {
+ this.currentSource_ = source;
+ }
+
+ this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+ this.on('dispose', this.disposeSourceHandler);
+ };
+
+ /**
+ * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+ *
+ * @listens Tech#dispose
+ */
+ _Tech.prototype.disposeSourceHandler = function () {
+ // if we have a source and get another one
+ // then we are loading something new
+ // than clear all of our current tracks
+ if (this.currentSource_) {
+ this.clearTracks(['audio', 'video']);
+ this.currentSource_ = null;
+ }
+
+ // always clean up auto-text tracks
+ this.cleanupAutoTextTracks();
+
+ if (this.sourceHandler_) {
+
+ if (this.sourceHandler_.dispose) {
+ this.sourceHandler_.dispose();
+ }
+
+ this.sourceHandler_ = null;
+ }
+ };
+ };
+
+ // The base Tech class needs to be registered as a Component. It is the only
+ // Tech that can be registered as a Component.
+ Component.registerComponent('Tech', Tech);
+ Tech.registerTech('Tech', Tech);
+
+ /**
+ * A list of techs that should be added to techOrder on Players
+ *
+ * @private
+ */
+ Tech.defaultTechOrder_ = [];
+
+ var middlewares = {};
+ var middlewareInstances = {};
+
+ var TERMINATOR = {};
+
+ function use(type, middleware) {
+ middlewares[type] = middlewares[type] || [];
+ middlewares[type].push(middleware);
+ }
+
+ function setSource(player, src, next) {
+ player.setTimeout(function () {
+ return setSourceHelper(src, middlewares[src.type], next, player);
+ }, 1);
+ }
+
+ function setTech(middleware, tech) {
+ middleware.forEach(function (mw) {
+ return mw.setTech && mw.setTech(tech);
+ });
+ }
+
+ /**
+ * Calls a getter on the tech first, through each middleware
+ * from right to left to the player.
+ */
+ function get$1(middleware, tech, method) {
+ return middleware.reduceRight(middlewareIterator(method), tech[method]());
+ }
+
+ /**
+ * Takes the argument given to the player and calls the setter method on each
+ * middleware from left to right to the tech.
+ */
+ function set$1(middleware, tech, method, arg) {
+ return tech[method](middleware.reduce(middlewareIterator(method), arg));
+ }
+
+ /**
+ * Takes the argument given to the player and calls the `call` version of the method
+ * on each middleware from left to right.
+ * Then, call the passed in method on the tech and return the result unchanged
+ * back to the player, through middleware, this time from right to left.
+ */
+ function mediate(middleware, tech, method) {
+ var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+ var callMethod = 'call' + toTitleCase(method);
+ var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+ var terminated = middlewareValue === TERMINATOR;
+ var returnValue = terminated ? null : tech[method](middlewareValue);
+
+ executeRight(middleware, method, returnValue, terminated);
+
+ return returnValue;
+ }
+
+ var allowedGetters = {
+ buffered: 1,
+ currentTime: 1,
+ duration: 1,
+ seekable: 1,
+ played: 1,
+ paused: 1
+ };
+
+ var allowedSetters = {
+ setCurrentTime: 1
+ };
+
+ var allowedMediators = {
+ play: 1,
+ pause: 1
+ };
+
+ function middlewareIterator(method) {
+ return function (value, mw) {
+ // if the previous middleware terminated, pass along the termination
+ if (value === TERMINATOR) {
+ return TERMINATOR;
+ }
+
+ if (mw[method]) {
+ return mw[method](value);
+ }
+
+ return value;
+ };
+ }
+
+ function executeRight(mws, method, value, terminated) {
+ for (var i = mws.length - 1; i >= 0; i--) {
+ var mw = mws[i];
+
+ if (mw[method]) {
+ mw[method](terminated, value);
+ }
+ }
+ }
+
+ function clearCacheForPlayer(player) {
+ middlewareInstances[player.id()] = null;
+ }
+
+ /**
+ * {
+ * [playerId]: [[mwFactory, mwInstance], ...]
+ * }
+ */
+ function getOrCreateFactory(player, mwFactory) {
+ var mws = middlewareInstances[player.id()];
+ var mw = null;
+
+ if (mws === undefined || mws === null) {
+ mw = mwFactory(player);
+ middlewareInstances[player.id()] = [[mwFactory, mw]];
+ return mw;
+ }
+
+ for (var i = 0; i < mws.length; i++) {
+ var _mws$i = mws[i],
+ mwf = _mws$i[0],
+ mwi = _mws$i[1];
+
+
+ if (mwf !== mwFactory) {
+ continue;
+ }
+
+ mw = mwi;
+ }
+
+ if (mw === null) {
+ mw = mwFactory(player);
+ mws.push([mwFactory, mw]);
+ }
+
+ return mw;
+ }
+
+ function setSourceHelper() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
+ var next = arguments[2];
+ var player = arguments[3];
+ var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
+ var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+ var mwFactory = middleware[0],
+ mwrest = middleware.slice(1);
+
+ // if mwFactory is a string, then we're at a fork in the road
+
+ if (typeof mwFactory === 'string') {
+ setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+ // if we have an mwFactory, call it with the player to get the mw,
+ // then call the mw's setSource method
+ } else if (mwFactory) {
+ var mw = getOrCreateFactory(player, mwFactory);
+
+ // if setSource isn't present, implicitly select this middleware
+ if (!mw.setSource) {
+ acc.push(mw);
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ mw.setSource(assign({}, src), function (err, _src) {
+
+ // something happened, try the next middleware on the current level
+ // make sure to use the old src
+ if (err) {
+ return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ }
+
+ // we've succeeded, now we need to go deeper
+ acc.push(mw);
+
+ // if it's the same type, continue down the current chain
+ // otherwise, we want to go down the new chain
+ setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
+ });
+ } else if (mwrest.length) {
+ setSourceHelper(src, mwrest, next, player, acc, lastRun);
+ } else if (lastRun) {
+ next(src, acc);
+ } else {
+ setSourceHelper(src, middlewares['*'], next, player, acc, true);
+ }
+ }
+
+ /**
+ * Mimetypes
+ *
+ * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm
+ * @typedef Mimetypes~Kind
+ * @enum
+ */
+ var MimetypesKind = {
+ opus: 'video/ogg',
+ ogv: 'video/ogg',
+ mp4: 'video/mp4',
+ mov: 'video/mp4',
+ m4v: 'video/mp4',
+ mkv: 'video/x-matroska',
+ mp3: 'audio/mpeg',
+ aac: 'audio/aac',
+ oga: 'audio/ogg',
+ m3u8: 'application/x-mpegURL'
+ };
+
+ /**
+ * Get the mimetype of a given src url if possible
+ *
+ * @param {string} src
+ * The url to the src
+ *
+ * @return {string}
+ * return the mimetype if it was known or empty string otherwise
+ */
+ var getMimetype = function getMimetype() {
+ var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var ext = getFileExtension(src);
+ var mimetype = MimetypesKind[ext.toLowerCase()];
+
+ return mimetype || '';
+ };
+
+ /**
+ * Find the mime type of a given source string if possible. Uses the player
+ * source cache.
+ *
+ * @param {Player} player
+ * The player object
+ *
+ * @param {string} src
+ * The source string
+ *
+ * @return {string}
+ * The type that was found
+ */
+ var findMimetype = function findMimetype(player, src) {
+ if (!src) {
+ return '';
+ }
+
+ // 1. check for the type in the `source` cache
+ if (player.cache_.source.src === src && player.cache_.source.type) {
+ return player.cache_.source.type;
+ }
+
+ // 2. see if we have this source in our `currentSources` cache
+ var matchingSources = player.cache_.sources.filter(function (s) {
+ return s.src === src;
+ });
+
+ if (matchingSources.length) {
+ return matchingSources[0].type;
+ }
+
+ // 3. look for the src url in source elements and use the type there
+ var sources = player.$$('source');
+
+ for (var i = 0; i < sources.length; i++) {
+ var s = sources[i];
+
+ if (s.type && s.src && s.src === src) {
+ return s.type;
+ }
+ }
+
+ // 4. finally fallback to our list of mime types based on src url extension
+ return getMimetype(src);
+ };
+
+ /**
+ * @module filter-source
+ */
+
+ /**
+ * Filter out single bad source objects or multiple source objects in an
+ * array. Also flattens nested source object arrays into a 1 dimensional
+ * array of source objects.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]} src
+ * The src object to filter
+ *
+ * @return {Tech~SourceObject[]}
+ * An array of sourceobjects containing only valid sources
+ *
+ * @private
+ */
+ var filterSource = function filterSource(src) {
+ // traverse array
+ if (Array.isArray(src)) {
+ var newsrc = [];
+
+ src.forEach(function (srcobj) {
+ srcobj = filterSource(srcobj);
+
+ if (Array.isArray(srcobj)) {
+ newsrc = newsrc.concat(srcobj);
+ } else if (isObject(srcobj)) {
+ newsrc.push(srcobj);
+ }
+ });
+
+ src = newsrc;
+ } else if (typeof src === 'string' && src.trim()) {
+ // convert string into object
+ src = [fixSource({ src: src })];
+ } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+ // src is already valid
+ src = [fixSource(src)];
+ } else {
+ // invalid source, turn it into an empty array
+ src = [];
+ }
+
+ return src;
+ };
+
+ /**
+ * Checks src mimetype, adding it when possible
+ *
+ * @param {Tech~SourceObject} src
+ * The src object to check
+ * @return {Tech~SourceObject}
+ * src Object with known type
+ */
+ function fixSource(src) {
+ var mimetype = getMimetype(src.src);
+
+ if (!src.type && mimetype) {
+ src.type = mimetype;
+ }
+
+ return src;
+ }
+
+ /**
+ * @file loader.js
+ */
+
+ /**
+ * The `MediaLoader` is the `Component` that decides which playback technology to load
+ * when a player is initialized.
+ *
+ * @extends Component
+ */
+
+ var MediaLoader = function (_Component) {
+ inherits(MediaLoader, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function that is run when this component is ready.
+ */
+ function MediaLoader(player, options, ready) {
+ classCallCheck(this, MediaLoader);
+
+ // MediaLoader has no element
+ var options_ = mergeOptions({ createEl: false }, options);
+
+ // If there are no sources when the player is initialized,
+ // load the first supported playback technology.
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));
+
+ if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+ for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+ var techName = toTitleCase(j[i]);
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!techName) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the browser supports this technology
+ if (tech && tech.isSupported()) {
+ player.loadTech_(techName);
+ break;
+ }
+ }
+ } else {
+ // Loop through playback technologies (HTML5, Flash) and check for support.
+ // Then load the best source.
+ // A few assumptions here:
+ // All playback technologies respect preload false.
+ player.src(options.playerOptions.sources);
+ }
+ return _this;
+ }
+
+ return MediaLoader;
+ }(Component);
+
+ Component.registerComponent('MediaLoader', MediaLoader);
+
+ /**
+ * @file clickable-component.js
+ */
+
+ /**
+ * Clickable Component which is clickable or keyboard actionable,
+ * but is not a native HTML button.
+ *
+ * @extends Component
+ */
+
+ var ClickableComponent = function (_Component) {
+ inherits(ClickableComponent, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ClickableComponent(player, options) {
+ classCallCheck(this, ClickableComponent);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.emitTapEvents();
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`s DOM element.
+ *
+ * @param {string} [tag=div]
+ * The element's node type.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createEl = function createEl$$1() {
+ var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass(),
+ tabIndex: 0
+ }, props);
+
+ if (tag === 'button') {
+ log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');
+ }
+
+ // Add ARIA attributes for clickable element which is not a native HTML button
+ attributes = assign({
+ role: 'button'
+ }, attributes);
+
+ this.tabIndex_ = props.tabIndex;
+
+ var el = _Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ ClickableComponent.prototype.dispose = function dispose() {
+ // remove controlTextEl_ on dispose
+ this.controlTextEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a control text element on this `Component`
+ *
+ * @param {Element} [el]
+ * Parent element for the control text.
+ *
+ * @return {Element}
+ * The control text element that gets created.
+ */
+
+
+ ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {
+ this.controlTextEl_ = createEl('span', {
+ className: 'vjs-control-text'
+ }, {
+ // let the screen reader user know that the text of the element may change
+ 'aria-live': 'polite'
+ });
+
+ if (el) {
+ el.appendChild(this.controlTextEl_);
+ }
+
+ this.controlText(this.controlText_, el);
+
+ return this.controlTextEl_;
+ };
+
+ /**
+ * Get or set the localize text to use for the controls on the `Component`.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ ClickableComponent.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();
+
+ if (text === undefined) {
+ return this.controlText_ || 'Need Text';
+ }
+
+ var localizedText = this.localize(text);
+
+ this.controlText_ = text;
+ textContent(this.controlTextEl_, localizedText);
+ if (!this.nonIconControl) {
+ // Set title attribute if only an icon is shown
+ el.setAttribute('title', localizedText);
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Enable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.enable = function enable() {
+ if (!this.enabled_) {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'false');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.setAttribute('tabIndex', this.tabIndex_);
+ }
+ this.on(['tap', 'click'], this.handleClick);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ }
+ };
+
+ /**
+ * Disable this `Component`s element.
+ */
+
+
+ ClickableComponent.prototype.disable = function disable() {
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+ this.el_.setAttribute('aria-disabled', 'true');
+ if (typeof this.tabIndex_ !== 'undefined') {
+ this.el_.removeAttribute('tabIndex');
+ }
+ this.off(['tap', 'click'], this.handleClick);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ };
+
+ /**
+ * This gets called when a `ClickableComponent` gets:
+ * - Clicked (via the `click` event, listening starts in the constructor)
+ * - Tapped (via the `tap` event, listening starts in the constructor)
+ * - The following things happen in order:
+ * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the
+ * `ClickableComponent`.
+ * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using
+ * {@link ClickableComponent#handleKeyPress}.
+ * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses
+ * the space or enter key.
+ * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`
+ * event as a parameter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @abstract
+ */
+
+
+ ClickableComponent.prototype.handleClick = function handleClick(event) {};
+
+ /**
+ * This gets called when a `ClickableComponent` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ ClickableComponent.prototype.handleFocus = function handleFocus(event) {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when this ClickableComponent has focus and a key gets pressed down. By
+ * default it will call `this.handleClick` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.trigger('click');
+ } else if (_Component.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Component.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ /**
+ * Called when a `ClickableComponent` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ ClickableComponent.prototype.handleBlur = function handleBlur(event) {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ return ClickableComponent;
+ }(Component);
+
+ Component.registerComponent('ClickableComponent', ClickableComponent);
+
+ /**
+ * @file poster-image.js
+ */
+
+ /**
+ * A `ClickableComponent` that handles showing the poster image for the player.
+ *
+ * @extends ClickableComponent
+ */
+
+ var PosterImage = function (_ClickableComponent) {
+ inherits(PosterImage, _ClickableComponent);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should attach to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PosterImage(player, options) {
+ classCallCheck(this, PosterImage);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.update();
+ player.on('posterchange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * Clean up and dispose of the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.dispose = function dispose() {
+ this.player().off('posterchange', this.update);
+ _ClickableComponent.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `PosterImage`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ PosterImage.prototype.createEl = function createEl$$1() {
+ var el = createEl('div', {
+ className: 'vjs-poster',
+
+ // Don't want poster to be tabbable.
+ tabIndex: -1
+ });
+
+ return el;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+ *
+ * @listens Player#posterchange
+ *
+ * @param {EventTarget~Event} [event]
+ * The `Player#posterchange` event that triggered this function.
+ */
+
+
+ PosterImage.prototype.update = function update(event) {
+ var url = this.player().poster();
+
+ this.setSrc(url);
+
+ // If there's no poster source we should display:none on this component
+ // so it's not still clickable or right-clickable
+ if (url) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ /**
+ * Set the source of the `PosterImage` depending on the display method.
+ *
+ * @param {string} url
+ * The URL to the source for the `PosterImage`.
+ */
+
+
+ PosterImage.prototype.setSrc = function setSrc(url) {
+ var backgroundImage = '';
+
+ // Any falsy value should stay as an empty string, otherwise
+ // this will throw an extra error
+ if (url) {
+ backgroundImage = 'url("' + url + '")';
+ }
+
+ this.el_.style.backgroundImage = backgroundImage;
+ };
+
+ /**
+ * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+ * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+ *
+ * @listens tap
+ * @listens click
+ * @listens keydown
+ *
+ * @param {EventTarget~Event} event
+ + The `click`, `tap` or `keydown` event that caused this function to be called.
+ */
+
+
+ PosterImage.prototype.handleClick = function handleClick(event) {
+ // We don't want a click to trigger playback when controls are disabled
+ if (!this.player_.controls()) {
+ return;
+ }
+
+ if (this.player_.paused()) {
+ silencePromise(this.player_.play());
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ return PosterImage;
+ }(ClickableComponent);
+
+ Component.registerComponent('PosterImage', PosterImage);
+
+ /**
+ * @file text-track-display.js
+ */
+
+ var darkGray = '#222';
+ var lightGray = '#ccc';
+ var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+ };
+
+ /**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e or #f604e2.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ */
+ function constructColor(color, opacity) {
+ var hex = void 0;
+
+ if (color.length === 4) {
+ // color looks like "#f0e"
+ hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+ } else if (color.length === 7) {
+ // color looks like "#f604e2"
+ hex = color.slice(1);
+ } else {
+ throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
+ }
+ return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
+ }
+
+ /**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ *
+ * @private
+ */
+ function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+ }
+
+ /**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+ var TextTrackDisplay = function (_Component) {
+ inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ classCallCheck(this, TextTrackDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ var updateDisplayHandler = bind(_this, _this.updateDisplay);
+
+ player.on('loadstart', bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', updateDisplayHandler);
+ player.on('loadstart', bind(_this, _this.preselectTrack));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', updateDisplayHandler);
+ player.on('playerresize', updateDisplayHandler);
+
+ window_1.addEventListener('orientationchange', updateDisplayHandler);
+ player.on('dispose', function () {
+ return window_1.removeEventListener('orientationchange', updateDisplayHandler);
+ });
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ this.preselectTrack();
+ }));
+ return _this;
+ }
+
+ /**
+ * Preselect a track following this precedence:
+ * - matches the previously selected {@link TextTrack}'s language and kind
+ * - matches the previously selected {@link TextTrack}'s language only
+ * - is the first default captions track
+ * - is the first default descriptions track
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var userPref = this.player_.cache_.selectedLanguage;
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+ var preferredTrack = void 0;
+
+ for (var i = 0; i < trackList.length; i++) {
+ var track = trackList[i];
+
+ if (userPref && userPref.enabled && userPref.language === track.language) {
+ // Always choose the track that matches both language and kind
+ if (track.kind === userPref.kind) {
+ preferredTrack = track;
+ // or choose the first track that matches language
+ } else if (!preferredTrack) {
+ preferredTrack = track;
+ }
+
+ // clear everything if offTextTrackMenuItem was clicked
+ } else if (userPref && !userPref.enabled) {
+ preferredTrack = null;
+ firstDesc = null;
+ firstCaptions = null;
+ } else if (track.default) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // The preferredTrack matches the user preference and takes
+ // precedence over all the other tracks.
+ // So, display the preferredTrack before the first default track
+ // and the subtitles/captions track before the descriptions track
+ if (preferredTrack) {
+ preferredTrack.mode = 'showing';
+ } else if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ };
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof window_1.WebVTT === 'function') {
+ window_1.WebVTT.processCues(window_1, [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof window_1.WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var cues = [];
+
+ for (var _i = 0; _i < track.activeCues.length; _i++) {
+ cues.push(track.activeCues[_i]);
+ }
+
+ window_1.WebVTT.processCues(window_1, cues, this.el_);
+
+ if (!this.player_.textTrackSettings) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = window_1.parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+ }(Component);
+
+ Component.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+ /**
+ * @file loading-spinner.js
+ */
+
+ /**
+ * A loading spinner for use during waiting/loading events.
+ *
+ * @extends Component
+ */
+
+ var LoadingSpinner = function (_Component) {
+ inherits(LoadingSpinner, _Component);
+
+ function LoadingSpinner() {
+ classCallCheck(this, LoadingSpinner);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `LoadingSpinner`s DOM element.
+ *
+ * @return {Element}
+ * The dom element that gets created.
+ */
+ LoadingSpinner.prototype.createEl = function createEl$$1() {
+ var isAudio = this.player_.isAudio();
+ var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+ var controlText = createEl('span', {
+ className: 'vjs-control-text',
+ innerHTML: this.localize('{1} is loading.', [playerType])
+ });
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-loading-spinner',
+ dir: 'ltr'
+ });
+
+ el.appendChild(controlText);
+
+ return el;
+ };
+
+ return LoadingSpinner;
+ }(Component);
+
+ Component.registerComponent('LoadingSpinner', LoadingSpinner);
+
+ /**
+ * @file button.js
+ */
+
+ /**
+ * Base class for all buttons.
+ *
+ * @extends ClickableComponent
+ */
+
+ var Button = function (_ClickableComponent) {
+ inherits(Button, _ClickableComponent);
+
+ function Button() {
+ classCallCheck(this, Button);
+ return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Button`s DOM element.
+ *
+ * @param {string} [tag="button"]
+ * The element's node type. This argument is IGNORED: no matter what
+ * is passed, it will always create a `button` element.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element.
+ *
+ * @param {Object} [attributes={}]
+ * An object of attributes that should be set on the element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+ Button.prototype.createEl = function createEl(tag) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ tag = 'button';
+
+ props = assign({
+ innerHTML: '<span aria-hidden="true" class="vjs-icon-placeholder"></span>',
+ className: this.buildCSSClass()
+ }, props);
+
+ // Add attributes for button element
+ attributes = assign({
+
+ // Necessary since the default button type is "submit"
+ type: 'button'
+ }, attributes);
+
+ var el = Component.prototype.createEl.call(this, tag, props, attributes);
+
+ this.createControlTextEl(el);
+
+ return el;
+ };
+
+ /**
+ * Add a child `Component` inside of this `Button`.
+ *
+ * @param {string|Component} child
+ * The name or instance of a child to add.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of options that will get passed to children of
+ * the child.
+ *
+ * @return {Component}
+ * The `Component` that gets added as a child. When using a string the
+ * `Component` will get created by this process.
+ *
+ * @deprecated since version 5
+ */
+
+
+ Button.prototype.addChild = function addChild(child) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var className = this.constructor.name;
+
+ log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');
+
+ // Avoid the error message generated by ClickableComponent's addChild method
+ return Component.prototype.addChild.call(this, child, options);
+ };
+
+ /**
+ * Enable the `Button` element so that it can be activated or clicked. Use this with
+ * {@link Button#disable}.
+ */
+
+
+ Button.prototype.enable = function enable() {
+ _ClickableComponent.prototype.enable.call(this);
+ this.el_.removeAttribute('disabled');
+ };
+
+ /**
+ * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+ * {@link Button#enable}.
+ */
+
+
+ Button.prototype.disable = function disable() {
+ _ClickableComponent.prototype.disable.call(this);
+ this.el_.setAttribute('disabled', 'disabled');
+ };
+
+ /**
+ * This gets called when a `Button` has focus and `keydown` is triggered via a key
+ * press.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to get called.
+ *
+ * @listens keydown
+ */
+
+
+ Button.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.
+ if (event.which === 32 || event.which === 13) {
+ return;
+ }
+
+ // Pass keypress handling up for unsupported keys
+ _ClickableComponent.prototype.handleKeyPress.call(this, event);
+ };
+
+ return Button;
+ }(ClickableComponent);
+
+ Component.registerComponent('Button', Button);
+
+ /**
+ * @file big-play-button.js
+ */
+
+ /**
+ * The initial play button that shows before the video has played. The hiding of the
+ * `BigPlayButton` get done via CSS and `Player` states.
+ *
+ * @extends Button
+ */
+
+ var BigPlayButton = function (_Button) {
+ inherits(BigPlayButton, _Button);
+
+ function BigPlayButton(player, options) {
+ classCallCheck(this, BigPlayButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.mouseused_ = false;
+
+ _this.on('mousedown', _this.handleMouseDown);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+ */
+
+
+ BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-big-play-button';
+ };
+
+ /**
+ * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ BigPlayButton.prototype.handleClick = function handleClick(event) {
+ var playPromise = this.player_.play();
+
+ // exit early if clicked via the mouse
+ if (this.mouseused_ && event.clientX && event.clientY) {
+ silencePromise(playPromise);
+ return;
+ }
+
+ var cb = this.player_.getChild('controlBar');
+ var playToggle = cb && cb.getChild('playToggle');
+
+ if (!playToggle) {
+ this.player_.focus();
+ return;
+ }
+
+ var playFocus = function playFocus() {
+ return playToggle.focus();
+ };
+
+ if (isPromise(playPromise)) {
+ playPromise.then(playFocus, function () {});
+ } else {
+ this.setTimeout(playFocus, 1);
+ }
+ };
+
+ BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {
+ this.mouseused_ = false;
+
+ _Button.prototype.handleKeyPress.call(this, event);
+ };
+
+ BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {
+ this.mouseused_ = true;
+ };
+
+ return BigPlayButton;
+ }(Button);
+
+ /**
+ * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ BigPlayButton.prototype.controlText_ = 'Play Video';
+
+ Component.registerComponent('BigPlayButton', BigPlayButton);
+
+ /**
+ * @file close-button.js
+ */
+
+ /**
+ * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+ * it gets clicked.
+ *
+ * @extends Button
+ */
+
+ var CloseButton = function (_Button) {
+ inherits(CloseButton, _Button);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CloseButton(player, options) {
+ classCallCheck(this, CloseButton);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.controlText(options && options.controlText || _this.localize('Close'));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CloseButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when a `CloseButton` gets clicked. See
+ * {@link ClickableComponent#handleClick} for more information on when this will be
+ * triggered
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ * @fires CloseButton#close
+ */
+
+
+ CloseButton.prototype.handleClick = function handleClick(event) {
+
+ /**
+ * Triggered when the a `CloseButton` is clicked.
+ *
+ * @event CloseButton#close
+ * @type {EventTarget~Event}
+ *
+ * @property {boolean} [bubbles=false]
+ * set to false so that the close event does not
+ * bubble up to parents if there is no listener
+ */
+ this.trigger({ type: 'close', bubbles: false });
+ };
+
+ return CloseButton;
+ }(Button);
+
+ Component.registerComponent('CloseButton', CloseButton);
+
+ /**
+ * @file play-toggle.js
+ */
+
+ /**
+ * Button to toggle between play and pause.
+ *
+ * @extends Button
+ */
+
+ var PlayToggle = function (_Button) {
+ inherits(PlayToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlayToggle(player, options) {
+ classCallCheck(this, PlayToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'play', _this.handlePlay);
+ _this.on(player, 'pause', _this.handlePause);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlayToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `PlayToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlayToggle.prototype.handleClick = function handleClick(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * This gets called once after the video has ended and the user seeks so that
+ * we can change the replay button back to a play button.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#seeked
+ */
+
+
+ PlayToggle.prototype.handleSeeked = function handleSeeked(event) {
+ this.removeClass('vjs-ended');
+
+ if (this.player_.paused()) {
+ this.handlePause(event);
+ } else {
+ this.handlePlay(event);
+ }
+ };
+
+ /**
+ * Add the vjs-playing class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#play
+ */
+
+
+ PlayToggle.prototype.handlePlay = function handlePlay(event) {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+ // change the button text to "Pause"
+ this.controlText('Pause');
+ };
+
+ /**
+ * Add the vjs-paused class to the element so it can change appearance.
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#pause
+ */
+
+
+ PlayToggle.prototype.handlePause = function handlePause(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ // change the button text to "Play"
+ this.controlText('Play');
+ };
+
+ /**
+ * Add the vjs-ended class to the element so it can change appearance
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ PlayToggle.prototype.handleEnded = function handleEnded(event) {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-ended');
+ // change the button text to "Replay"
+ this.controlText('Replay');
+
+ // on the next seek remove the replay button
+ this.one(this.player_, 'seeked', this.handleSeeked);
+ };
+
+ return PlayToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `PlayToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlayToggle.prototype.controlText_ = 'Play';
+
+ Component.registerComponent('PlayToggle', PlayToggle);
+
+ /**
+ * @file format-time.js
+ * @module format-time
+ */
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)
+ * will force a number of leading zeros to cover the length of the guide.
+ *
+ * @param {number} seconds
+ * Number of seconds to be turned into a string
+ *
+ * @param {number} guide
+ * Number (in seconds) to model the string after
+ *
+ * @return {string}
+ * Time formatted as H:MM:SS or M:SS
+ */
+ var defaultImplementation = function defaultImplementation(seconds, guide) {
+ seconds = seconds < 0 ? 0 : seconds;
+ var s = Math.floor(seconds % 60);
+ var m = Math.floor(seconds / 60 % 60);
+ var h = Math.floor(seconds / 3600);
+ var gm = Math.floor(guide / 60 % 60);
+ var gh = Math.floor(guide / 3600);
+
+ // handle invalid times
+ if (isNaN(seconds) || seconds === Infinity) {
+ // '-' is false for all relational operators (e.g. <, >=) so this setting
+ // will add the minimum number of fields specified by the guide
+ h = m = s = '-';
+ }
+
+ // Check if we need to show hours
+ h = h > 0 || gh > 0 ? h + ':' : '';
+
+ // If hours are showing, we may need to add a leading zero.
+ // Always show at least one digit of minutes.
+ m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+ // Check if leading zero is need for seconds
+ s = s < 10 ? '0' + s : s;
+
+ return h + m + s;
+ };
+
+ var implementation = defaultImplementation;
+
+ /**
+ * Replaces the default formatTime implementation with a custom implementation.
+ *
+ * @param {Function} customImplementation
+ * A function which will be used in place of the default formatTime implementation.
+ * Will receive the current time in seconds and the guide (in seconds) as arguments.
+ */
+ function setFormatTime(customImplementation) {
+ implementation = customImplementation;
+ }
+
+ /**
+ * Resets formatTime to the default implementation.
+ */
+ function resetFormatTime() {
+ implementation = defaultImplementation;
+ }
+
+ function formatTime (seconds) {
+ var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;
+
+ return implementation(seconds, guide);
+ }
+
+ /**
+ * @file time-display.js
+ */
+
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var TimeDisplay = function (_Component) {
+ inherits(TimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TimeDisplay(player, options) {
+ classCallCheck(this, TimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);
+ _this.on(player, 'timeupdate', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TimeDisplay.prototype.createEl = function createEl$$1(plainName) {
+ var className = this.buildCSSClass();
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: className + ' vjs-time-control vjs-control',
+ innerHTML: '<span class="vjs-control-text">' + this.localize(this.labelText_) + '\xA0</span>'
+ });
+
+ this.contentEl_ = createEl('span', {
+ className: className + '-display'
+ }, {
+ // tell screen readers not to automatically read the time as it changes
+ 'aria-live': 'off'
+ });
+
+ this.updateTextNode_();
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ TimeDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+ this.textNode_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Updates the "remaining time" text node with new content using the
+ * contents of the `formattedTime_` property.
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {
+ if (!this.contentEl_) {
+ return;
+ }
+
+ while (this.contentEl_.firstChild) {
+ this.contentEl_.removeChild(this.contentEl_.firstChild);
+ }
+
+ this.textNode_ = document_1.createTextNode(this.formattedTime_ || this.formatTime_(0));
+ this.contentEl_.appendChild(this.textNode_);
+ };
+
+ /**
+ * Generates a formatted time for this component to use in display.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ return formatTime(time);
+ };
+
+ /**
+ * Updates the time display text node if it has what was passed in changed
+ * the formatted time.
+ *
+ * @param {number} time
+ * The time to update to
+ *
+ * @private
+ */
+
+
+ TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {
+ var formattedTime = this.formatTime_(time);
+
+ if (formattedTime === this.formattedTime_) {
+ return;
+ }
+
+ this.formattedTime_ = formattedTime;
+ this.requestAnimationFrame(this.updateTextNode_);
+ };
+
+ /**
+ * To be filled out in the child class, should update the displayed time
+ * in accordance with the fact that the current time has changed.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ TimeDisplay.prototype.updateContent = function updateContent(event) {};
+
+ return TimeDisplay;
+ }(Component);
+
+ /**
+ * The text that is added to the `TimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ TimeDisplay.prototype.labelText_ = 'Time';
+
+ /**
+ * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ TimeDisplay.prototype.controlText_ = 'Time';
+
+ Component.registerComponent('TimeDisplay', TimeDisplay);
+
+ /**
+ * @file current-time-display.js
+ */
+
+ /**
+ * Displays the current time
+ *
+ * @extends Component
+ */
+
+ var CurrentTimeDisplay = function (_TimeDisplay) {
+ inherits(CurrentTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CurrentTimeDisplay(player, options) {
+ classCallCheck(this, CurrentTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-current-time';
+ };
+
+ /**
+ * Update current time display
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` event that caused this function to run.
+ *
+ * @listens Player#timeupdate
+ */
+
+
+ CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {
+ // Allows for smooth scrubbing, when player can't keep up.
+ var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+
+ this.updateFormattedTime_(time);
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(this.player_.duration());
+ };
+
+ return CurrentTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+ /**
+ * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+
+ Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+ /**
+ * @file duration-display.js
+ */
+
+ /**
+ * Displays the duration
+ *
+ * @extends Component
+ */
+
+ var DurationDisplay = function (_TimeDisplay) {
+ inherits(DurationDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function DurationDisplay(player, options) {
+ classCallCheck(this, DurationDisplay);
+
+ // we do not want to/need to throttle duration changes,
+ // as they should always display the changed duration as
+ // it has changed
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.updateContent);
+
+ // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+ // listeners could have broken dependent applications/libraries. These
+ // can likely be removed for 7.0.
+ _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-duration';
+ };
+
+ /**
+ * Update duration time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+ * this function to be called.
+ *
+ * @listens Player#durationchange
+ * @listens Player#timeupdate
+ * @listens Player#loadedmetadata
+ */
+
+
+ DurationDisplay.prototype.updateContent = function updateContent(event) {
+ var duration = this.player_.duration();
+
+ if (duration && this.duration_ !== duration) {
+ this.duration_ = duration;
+ this.updateFormattedTime_(duration);
+ }
+ };
+
+ return DurationDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `DurationDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DurationDisplay.prototype.labelText_ = 'Duration';
+
+ /**
+ * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ DurationDisplay.prototype.controlText_ = 'Duration';
+
+ Component.registerComponent('DurationDisplay', DurationDisplay);
+
+ /**
+ * @file time-divider.js
+ */
+
+ /**
+ * The separator between the current time and duration.
+ * Can be hidden if it's not needed in the design.
+ *
+ * @extends Component
+ */
+
+ var TimeDivider = function (_Component) {
+ inherits(TimeDivider, _Component);
+
+ function TimeDivider() {
+ classCallCheck(this, TimeDivider);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the component's DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeDivider.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-control vjs-time-divider',
+ innerHTML: '<div><span>/</span></div>'
+ });
+ };
+
+ return TimeDivider;
+ }(Component);
+
+ Component.registerComponent('TimeDivider', TimeDivider);
+
+ /**
+ * @file remaining-time-display.js
+ */
+ /**
+ * Displays the time left in the video
+ *
+ * @extends Component
+ */
+
+ var RemainingTimeDisplay = function (_TimeDisplay) {
+ inherits(RemainingTimeDisplay, _TimeDisplay);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function RemainingTimeDisplay(player, options) {
+ classCallCheck(this, RemainingTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));
+
+ _this.on(player, 'durationchange', _this.throttledUpdateContent);
+ _this.on(player, 'ended', _this.handleEnded);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-remaining-time';
+ };
+
+ /**
+ * The remaining time display prefixes numbers with a "minus" character.
+ *
+ * @param {number} time
+ * A numeric time, in seconds.
+ *
+ * @return {string}
+ * A formatted time
+ *
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {
+ // TODO: The "-" should be decorative, and not announced by a screen reader
+ return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);
+ };
+
+ /**
+ * Update remaining time display.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `durationchange` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ * @listens Player#durationchange
+ */
+
+
+ RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+
+ // @deprecated We should only use remainingTimeDisplay
+ // as of video.js 7
+ if (this.player_.remainingTimeDisplay) {
+ this.updateFormattedTime_(this.player_.remainingTimeDisplay());
+ } else {
+ this.updateFormattedTime_(this.player_.remainingTime());
+ }
+ };
+
+ /**
+ * When the player fires ended there should be no time left. Sadly
+ * this is not always the case, lets make it seem like that is the case
+ * for users.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {
+ if (!this.player_.duration()) {
+ return;
+ }
+ this.updateFormattedTime_(0);
+ };
+
+ return RemainingTimeDisplay;
+ }(TimeDisplay);
+
+ /**
+ * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+ /**
+ * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+ *
+ * @type {string}
+ * @private
+ *
+ * @deprecated in v7; controlText_ is not used in non-active display Components
+ */
+ RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+
+ Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+ /**
+ * @file live-display.js
+ */
+
+ // TODO - Future make it click to snap to live
+
+ /**
+ * Displays the live indicator when duration is Infinity.
+ *
+ * @extends Component
+ */
+
+ var LiveDisplay = function (_Component) {
+ inherits(LiveDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LiveDisplay(player, options) {
+ classCallCheck(this, LiveDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.updateShowing();
+ _this.on(_this.player(), 'durationchange', _this.updateShowing);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LiveDisplay.prototype.createEl = function createEl$$1() {
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-live-control vjs-control'
+ });
+
+ this.contentEl_ = createEl('div', {
+ className: 'vjs-live-display',
+ innerHTML: '<span class="vjs-control-text">' + this.localize('Stream Type') + '\xA0</span>' + this.localize('LIVE')
+ }, {
+ 'aria-live': 'off'
+ });
+
+ el.appendChild(this.contentEl_);
+ return el;
+ };
+
+ LiveDisplay.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+ * it accordingly
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#durationchange} event that caused this function to run.
+ *
+ * @listens Player#durationchange
+ */
+
+
+ LiveDisplay.prototype.updateShowing = function updateShowing(event) {
+ if (this.player().duration() === Infinity) {
+ this.show();
+ } else {
+ this.hide();
+ }
+ };
+
+ return LiveDisplay;
+ }(Component);
+
+ Component.registerComponent('LiveDisplay', LiveDisplay);
+
+ /**
+ * @file slider.js
+ */
+
+ /**
+ * The base functionality for a slider. Can be vertical or horizontal.
+ * For instance the volume bar or the seek bar on a video is a slider.
+ *
+ * @extends Component
+ */
+
+ var Slider = function (_Component) {
+ inherits(Slider, _Component);
+
+ /**
+ * Create an instance of this class
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function Slider(player, options) {
+ classCallCheck(this, Slider);
+
+ // Set property names to bar to match with the child Slider class is looking for
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.bar = _this.getChild(_this.options_.barName);
+
+ // Set a horizontal or vertical class on the slider depending on the slider type
+ _this.vertical(!!_this.options_.vertical);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Are controls are currently enabled for this slider or not.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ Slider.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Enable controls for this slider if they are disabled
+ */
+
+
+ Slider.prototype.enable = function enable() {
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on('mousedown', this.handleMouseDown);
+ this.on('touchstart', this.handleMouseDown);
+ this.on('focus', this.handleFocus);
+ this.on('blur', this.handleBlur);
+ this.on('click', this.handleClick);
+
+ this.on(this.player_, 'controlsvisible', this.update);
+
+ if (this.playerEvent) {
+ this.on(this.player_, this.playerEvent, this.update);
+ }
+
+ this.removeClass('disabled');
+ this.setAttribute('tabindex', 0);
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Disable controls for this slider if they are enabled
+ */
+
+
+ Slider.prototype.disable = function disable() {
+ if (!this.enabled()) {
+ return;
+ }
+ var doc = this.bar.el_.ownerDocument;
+
+ this.off('mousedown', this.handleMouseDown);
+ this.off('touchstart', this.handleMouseDown);
+ this.off('focus', this.handleFocus);
+ this.off('blur', this.handleBlur);
+ this.off('click', this.handleClick);
+ this.off(this.player_, 'controlsvisible', this.update);
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ this.removeAttribute('tabindex');
+
+ this.addClass('disabled');
+
+ if (this.playerEvent) {
+ this.off(this.player_, this.playerEvent, this.update);
+ }
+ this.enabled_ = false;
+ };
+
+ /**
+ * Create the `Slider`s DOM element.
+ *
+ * @param {string} type
+ * Type of element to create.
+ *
+ * @param {Object} [props={}]
+ * List of properties in Object form.
+ *
+ * @param {Object} [attributes={}]
+ * list of attributes in Object form.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Slider.prototype.createEl = function createEl$$1(type) {
+ var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ // Add the slider element class to all sub classes
+ props.className = props.className + ' vjs-slider';
+ props = assign({
+ tabIndex: 0
+ }, props);
+
+ attributes = assign({
+ 'role': 'slider',
+ 'aria-valuenow': 0,
+ 'aria-valuemin': 0,
+ 'aria-valuemax': 100,
+ 'tabIndex': 0
+ }, attributes);
+
+ return _Component.prototype.createEl.call(this, type, props, attributes);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ * @fires Slider#slideractive
+ */
+
+
+ Slider.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.bar.el_.ownerDocument;
+
+ if (event.type === 'mousedown') {
+ event.preventDefault();
+ }
+ // Do not call preventDefault() on touchstart in Chrome
+ // to avoid console warnings. Use a 'touch-action: none' style
+ // instead to prevent unintented scrolling.
+ // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+ if (event.type === 'touchstart' && !IS_CHROME) {
+ event.preventDefault();
+ }
+ blockTextSelection();
+
+ this.addClass('vjs-sliding');
+ /**
+ * Triggered when the slider is in an active state
+ *
+ * @event Slider#slideractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('slideractive');
+
+ this.on(doc, 'mousemove', this.handleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchmove', this.handleMouseMove);
+ this.on(doc, 'touchend', this.handleMouseUp);
+
+ this.handleMouseMove(event);
+ };
+
+ /**
+ * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+ * The `mousemove` and `touchmove` events will only only trigger this function during
+ * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+ * {@link Slider#handleMouseUp}.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+ * this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ Slider.prototype.handleMouseMove = function handleMouseMove(event) {};
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ * @fires Slider#sliderinactive
+ */
+
+
+ Slider.prototype.handleMouseUp = function handleMouseUp() {
+ var doc = this.bar.el_.ownerDocument;
+
+ unblockTextSelection();
+
+ this.removeClass('vjs-sliding');
+ /**
+ * Triggered when the slider is no longer in an active state.
+ *
+ * @event Slider#sliderinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('sliderinactive');
+
+ this.off(doc, 'mousemove', this.handleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchmove', this.handleMouseMove);
+ this.off(doc, 'touchend', this.handleMouseUp);
+
+ this.update();
+ };
+
+ /**
+ * Update the progress bar of the `Slider`.
+ *
+ * @returns {number}
+ * The percentage of progress the progress bar represents as a
+ * number from 0 to 1.
+ */
+
+
+ Slider.prototype.update = function update() {
+
+ // In VolumeBar init we have a setTimeout for update that pops and update
+ // to the end of the execution stack. The player is destroyed before then
+ // update will cause an error
+ if (!this.el_) {
+ return;
+ }
+
+ // If scrubbing, we could use a cached value to make the handle keep up
+ // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but
+ // some flash players are slow, so we might want to utilize this later.
+ // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();
+ var progress = this.getPercent();
+ var bar = this.bar;
+
+ // If there's no bar...
+ if (!bar) {
+ return;
+ }
+
+ // Protect against no duration and other division issues
+ if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {
+ progress = 0;
+ }
+
+ // Convert to a percentage for setting
+ var percentage = (progress * 100).toFixed(2) + '%';
+ var style = bar.el().style;
+
+ // Set the new bar width or height
+ if (this.vertical()) {
+ style.height = percentage;
+ } else {
+ style.width = percentage;
+ }
+
+ return progress;
+ };
+
+ /**
+ * Calculate distance for slider
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @return {number}
+ * The current position of the Slider.
+ * - position.x for vertical `Slider`s
+ * - position.y for horizontal `Slider`s
+ */
+
+
+ Slider.prototype.calculateDistance = function calculateDistance(event) {
+ var position = getPointerPosition(this.el_, event);
+
+ if (this.vertical()) {
+ return position.y;
+ }
+ return position.x;
+ };
+
+ /**
+ * Handle a `focus` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to run.
+ *
+ * @listens focus
+ */
+
+
+ Slider.prototype.handleFocus = function handleFocus() {
+ this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
+ * arrow keys. This function will only be called when the slider has focus. See
+ * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+ *
+ * @param {EventTarget~Event} event
+ * the `keydown` event that caused this function to run.
+ *
+ * @listens keydown
+ */
+
+
+ Slider.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepBack();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepForward();
+ }
+ };
+
+ /**
+ * Handle a `blur` event on this `Slider`.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to run.
+ *
+ * @listens blur
+ */
+
+ Slider.prototype.handleBlur = function handleBlur() {
+ this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);
+ };
+
+ /**
+ * Listener for click events on slider, used to prevent clicks
+ * from bubbling up to parent elements like button menus.
+ *
+ * @param {Object} event
+ * Event that caused this object to run
+ */
+
+
+ Slider.prototype.handleClick = function handleClick(event) {
+ event.stopImmediatePropagation();
+ event.preventDefault();
+ };
+
+ /**
+ * Get/set if slider is horizontal for vertical
+ *
+ * @param {boolean} [bool]
+ * - true if slider is vertical,
+ * - false is horizontal
+ *
+ * @return {boolean}
+ * - true if slider is vertical, and getting
+ * - false if the slider is horizontal, and getting
+ */
+
+
+ Slider.prototype.vertical = function vertical(bool) {
+ if (bool === undefined) {
+ return this.vertical_ || false;
+ }
+
+ this.vertical_ = !!bool;
+
+ if (this.vertical_) {
+ this.addClass('vjs-slider-vertical');
+ } else {
+ this.addClass('vjs-slider-horizontal');
+ }
+ };
+
+ return Slider;
+ }(Component);
+
+ Component.registerComponent('Slider', Slider);
+
+ /**
+ * @file load-progress-bar.js
+ */
+
+ /**
+ * Shows loading progress
+ *
+ * @extends Component
+ */
+
+ var LoadProgressBar = function (_Component) {
+ inherits(LoadProgressBar, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function LoadProgressBar(player, options) {
+ classCallCheck(this, LoadProgressBar);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.partEls_ = [];
+ _this.on(player, 'progress', _this.update);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ LoadProgressBar.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-load-progress',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Loaded') + '</span>: 0%</span>'
+ });
+ };
+
+ LoadProgressBar.prototype.dispose = function dispose() {
+ this.partEls_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Update progress bar
+ *
+ * @param {EventTarget~Event} [event]
+ * The `progress` event that caused this function to run.
+ *
+ * @listens Player#progress
+ */
+
+
+ LoadProgressBar.prototype.update = function update(event) {
+ var buffered = this.player_.buffered();
+ var duration = this.player_.duration();
+ var bufferedEnd = this.player_.bufferedEnd();
+ var children = this.partEls_;
+
+ // get the percent width of a time compared to the total end
+ var percentify = function percentify(time, end) {
+ // no NaN
+ var percent = time / end || 0;
+
+ return (percent >= 1 ? 1 : percent) * 100 + '%';
+ };
+
+ // update the width of the progress bar
+ this.el_.style.width = percentify(bufferedEnd, duration);
+
+ // add child elements to represent the individual buffered time ranges
+ for (var i = 0; i < buffered.length; i++) {
+ var start = buffered.start(i);
+ var end = buffered.end(i);
+ var part = children[i];
+
+ if (!part) {
+ part = this.el_.appendChild(createEl());
+ children[i] = part;
+ }
+
+ // set the percent based on the width of the progress bar (bufferedEnd)
+ part.style.left = percentify(start, bufferedEnd);
+ part.style.width = percentify(end - start, bufferedEnd);
+ }
+
+ // remove unused buffered range elements
+ for (var _i = children.length; _i > buffered.length; _i--) {
+ this.el_.removeChild(children[_i - 1]);
+ }
+ children.length = buffered.length;
+ };
+
+ return LoadProgressBar;
+ }(Component);
+
+ Component.registerComponent('LoadProgressBar', LoadProgressBar);
+
+ /**
+ * @file time-tooltip.js
+ */
+
+ /**
+ * Time tooltips display a time above the progress bar.
+ *
+ * @extends Component
+ */
+
+ var TimeTooltip = function (_Component) {
+ inherits(TimeTooltip, _Component);
+
+ function TimeTooltip() {
+ classCallCheck(this, TimeTooltip);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the time tooltip DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ TimeTooltip.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-time-tooltip'
+ });
+ };
+
+ /**
+ * Updates the position of the time tooltip relative to the `SeekBar`.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {
+ var tooltipRect = getBoundingClientRect(this.el_);
+ var playerRect = getBoundingClientRect(this.player_.el());
+ var seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+ // do nothing if either rect isn't available
+ // for example, if the player isn't in the DOM for testing
+ if (!playerRect || !tooltipRect) {
+ return;
+ }
+
+ // This is the space left of the `seekBarPoint` available within the bounds
+ // of the player. We calculate any gap between the left edge of the player
+ // and the left edge of the `SeekBar` and add the number of pixels in the
+ // `SeekBar` before hitting the `seekBarPoint`
+ var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+ // This is the space right of the `seekBarPoint` available within the bounds
+ // of the player. We calculate the number of pixels from the `seekBarPoint`
+ // to the right edge of the `SeekBar` and add to that any gap between the
+ // right edge of the `SeekBar` and the player.
+ var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+ // This is the number of pixels by which the tooltip will need to be pulled
+ // further to the right to center it over the `seekBarPoint`.
+ var pullTooltipBy = tooltipRect.width / 2;
+
+ // Adjust the `pullTooltipBy` distance to the left or right depending on
+ // the results of the space calculations above.
+ if (spaceLeftOfPoint < pullTooltipBy) {
+ pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+ } else if (spaceRightOfPoint < pullTooltipBy) {
+ pullTooltipBy = spaceRightOfPoint;
+ }
+
+ // Due to the imprecision of decimal/ratio based calculations and varying
+ // rounding behaviors, there are cases where the spacing adjustment is off
+ // by a pixel or two. This adds insurance to these calculations.
+ if (pullTooltipBy < 0) {
+ pullTooltipBy = 0;
+ } else if (pullTooltipBy > tooltipRect.width) {
+ pullTooltipBy = tooltipRect.width;
+ }
+
+ this.el_.style.right = '-' + pullTooltipBy + 'px';
+ textContent(this.el_, content);
+ };
+
+ return TimeTooltip;
+ }(Component);
+
+ Component.registerComponent('TimeTooltip', TimeTooltip);
+
+ /**
+ * @file play-progress-bar.js
+ */
+
+ /**
+ * Used by {@link SeekBar} to display media playback progress as part of the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var PlayProgressBar = function (_Component) {
+ inherits(PlayProgressBar, _Component);
+
+ function PlayProgressBar() {
+ classCallCheck(this, PlayProgressBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ PlayProgressBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-play-progress vjs-slider-bar',
+ innerHTML: '<span class="vjs-control-text"><span>' + this.localize('Progress') + '</span>: 0%</span>'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();
+
+ var content = formatTime(time, _this2.player_.duration());
+ var timeTooltip = _this2.getChild('timeTooltip');
+
+ if (timeTooltip) {
+ timeTooltip.update(seekBarRect, seekBarPoint, content);
+ }
+ });
+ };
+
+ return PlayProgressBar;
+ }(Component);
+
+ /**
+ * Default options for {@link PlayProgressBar}.
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ PlayProgressBar.prototype.options_ = {
+ children: []
+ };
+
+ // Time tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ PlayProgressBar.prototype.options_.children.push('timeTooltip');
+ }
+
+ Component.registerComponent('PlayProgressBar', PlayProgressBar);
+
+ /**
+ * @file mouse-time-display.js
+ */
+
+ /**
+ * The {@link MouseTimeDisplay} component tracks mouse movement over the
+ * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+ * indicating the time which is represented by a given point in the
+ * {@link ProgressControl}.
+ *
+ * @extends Component
+ */
+
+ var MouseTimeDisplay = function (_Component) {
+ inherits(MouseTimeDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The {@link Player} that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MouseTimeDisplay(player, options) {
+ classCallCheck(this, MouseTimeDisplay);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.update = throttle(bind(_this, _this.update), 25);
+ return _this;
+ }
+
+ /**
+ * Create the DOM element for this class.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ MouseTimeDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-mouse-display'
+ });
+ };
+
+ /**
+ * Enqueues updates to its own DOM as well as the DOM of its
+ * {@link TimeTooltip} child.
+ *
+ * @param {Object} seekBarRect
+ * The `ClientRect` for the {@link SeekBar} element.
+ *
+ * @param {number} seekBarPoint
+ * A number from 0 to 1, representing a horizontal reference point
+ * from the left edge of the {@link SeekBar}
+ */
+
+
+ MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {
+ var _this2 = this;
+
+ // If there is an existing rAF ID, cancel it so we don't over-queue.
+ if (this.rafId_) {
+ this.cancelAnimationFrame(this.rafId_);
+ }
+
+ this.rafId_ = this.requestAnimationFrame(function () {
+ var duration = _this2.player_.duration();
+ var content = formatTime(seekBarPoint * duration, duration);
+
+ _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';
+ _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);
+ });
+ };
+
+ return MouseTimeDisplay;
+ }(Component);
+
+ /**
+ * Default options for `MouseTimeDisplay`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ MouseTimeDisplay.prototype.options_ = {
+ children: ['timeTooltip']
+ };
+
+ Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+ /**
+ * @file seek-bar.js
+ */
+
+ // The number of seconds the `step*` functions move the timeline.
+ var STEP_SECONDS = 5;
+
+ // The interval at which the bar should update as it progresses.
+ var UPDATE_REFRESH_INTERVAL = 30;
+
+ /**
+ * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+ * as its `bar`.
+ *
+ * @extends Slider
+ */
+
+ var SeekBar = function (_Slider) {
+ inherits(SeekBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function SeekBar(player, options) {
+ classCallCheck(this, SeekBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.setEventHandlers_();
+ return _this;
+ }
+
+ /**
+ * Sets the event handlers
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {
+ var _this2 = this;
+
+ this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);
+
+ this.on(this.player_, 'timeupdate', this.update);
+ this.on(this.player_, 'ended', this.handleEnded);
+
+ // when playing, let's ensure we smoothly update the play progress bar
+ // via an interval
+ this.updateInterval = null;
+
+ this.on(this.player_, ['playing'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+
+ _this2.updateInterval = _this2.setInterval(function () {
+ _this2.requestAnimationFrame(function () {
+ _this2.update();
+ });
+ }, UPDATE_REFRESH_INTERVAL);
+ });
+
+ this.on(this.player_, ['ended', 'pause', 'waiting'], function () {
+ _this2.clearInterval(_this2.updateInterval);
+ });
+
+ this.on(this.player_, ['timeupdate', 'ended'], this.update);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ SeekBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-holder'
+ }, {
+ 'aria-label': this.localize('Progress Bar')
+ });
+ };
+
+ /**
+ * This function updates the play progress bar and accessibility
+ * attributes to whatever is passed in.
+ *
+ * @param {number} currentTime
+ * The currentTime value that should be used for accessibility
+ *
+ * @param {number} percent
+ * The percentage as a decimal that the bar should be filled from 0-1.
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.update_ = function update_(currentTime, percent) {
+ var duration = this.player_.duration();
+
+ // machine readable value of progress bar (percentage complete)
+ this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+
+ // human readable value of progress bar (time complete)
+ this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+
+ // Update the `PlayProgressBar`.
+ this.bar.update(getBoundingClientRect(this.el_), percent);
+ };
+
+ /**
+ * Update the seek bar's UI.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#timeupdate
+ *
+ * @returns {number}
+ * The current percent at a number from 0-1
+ */
+
+
+ SeekBar.prototype.update = function update(event) {
+ var percent = _Slider.prototype.update.call(this);
+
+ this.update_(this.getCurrentTime_(), percent);
+ return percent;
+ };
+
+ /**
+ * Get the value of current time but allows for smooth scrubbing,
+ * when player can't keep up.
+ *
+ * @return {number}
+ * The current time value to display
+ *
+ * @private
+ */
+
+
+ SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {
+ return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+ };
+
+ /**
+ * We want the seek bar to be full on ended
+ * no matter what the actual internal values are. so we force it.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `timeupdate` or `ended` event that caused this to run.
+ *
+ * @listens Player#ended
+ */
+
+
+ SeekBar.prototype.handleEnded = function handleEnded(event) {
+ this.update_(this.player_.duration(), 1);
+ };
+
+ /**
+ * Get the percentage of media played so far.
+ *
+ * @return {number}
+ * The percentage of media played so far (0 to 1).
+ */
+
+
+ SeekBar.prototype.getPercent = function getPercent() {
+ var percent = this.getCurrentTime_() / this.player_.duration();
+
+ return percent >= 1 ? 1 : percent || 0;
+ };
+
+ /**
+ * Handle mouse down on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ event.stopPropagation();
+ this.player_.scrubbing(true);
+
+ this.videoWasPlaying = !this.player_.paused();
+ this.player_.pause();
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle mouse move on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this to run.
+ *
+ * @listens mousemove
+ */
+
+
+ SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ var newTime = this.calculateDistance(event) * this.player_.duration();
+
+ // Don't let video end while scrubbing.
+ if (newTime === this.player_.duration()) {
+ newTime = newTime - 0.1;
+ }
+
+ // Set new time (tell player to seek to new time)
+ this.player_.currentTime(newTime);
+ };
+
+ SeekBar.prototype.enable = function enable() {
+ _Slider.prototype.enable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.show();
+ };
+
+ SeekBar.prototype.disable = function disable() {
+ _Slider.prototype.disable.call(this);
+ var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+
+ if (!mouseTimeDisplay) {
+ return;
+ }
+
+ mouseTimeDisplay.hide();
+ };
+
+ /**
+ * Handle mouse up on seek bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mouseup` event that caused this to run.
+ *
+ * @listens mouseup
+ */
+
+
+ SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {
+ _Slider.prototype.handleMouseUp.call(this, event);
+
+ // Stop event propagation to prevent double fire in progress-control.js
+ if (event) {
+ event.stopPropagation();
+ }
+ this.player_.scrubbing(false);
+
+ /**
+ * Trigger timeupdate because we're done seeking and the time has changed.
+ * This is particularly useful for if the player is paused to time the time displays.
+ *
+ * @event Tech#timeupdate
+ * @type {EventTarget~Event}
+ */
+ this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });
+ if (this.videoWasPlaying) {
+ silencePromise(this.player_.play());
+ }
+ };
+
+ /**
+ * Move more quickly fast forward for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepForward = function stepForward() {
+ this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);
+ };
+
+ /**
+ * Move more quickly rewind for keyboard-only users
+ */
+
+
+ SeekBar.prototype.stepBack = function stepBack() {
+ this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);
+ };
+
+ /**
+ * Toggles the playback state of the player
+ * This gets called when enter or space is used on the seekbar
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called
+ *
+ */
+
+
+ SeekBar.prototype.handleAction = function handleAction(event) {
+ if (this.player_.paused()) {
+ this.player_.play();
+ } else {
+ this.player_.pause();
+ }
+ };
+
+ /**
+ * Called when this SeekBar has focus and a key gets pressed down. By
+ * default it will call `this.handleAction` when the key is space or enter.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Support Space (32) or Enter (13) key operation to fire a click event
+ if (event.which === 32 || event.which === 13) {
+ event.preventDefault();
+ this.handleAction(event);
+ } else if (_Slider.prototype.handleKeyPress) {
+
+ // Pass keypress handling up for unsupported keys
+ _Slider.prototype.handleKeyPress.call(this, event);
+ }
+ };
+
+ return SeekBar;
+ }(Slider);
+
+ /**
+ * Default options for the `SeekBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ SeekBar.prototype.options_ = {
+ children: ['loadProgressBar', 'playProgressBar'],
+ barName: 'playProgressBar'
+ };
+
+ // MouseTimeDisplay tooltips should not be added to a player on mobile devices
+ if (!IS_IOS && !IS_ANDROID) {
+ SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+ }
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ SeekBar.prototype.playerEvent = 'timeupdate';
+
+ Component.registerComponent('SeekBar', SeekBar);
+
+ /**
+ * @file progress-control.js
+ */
+
+ /**
+ * The Progress Control component contains the seek bar, load progress,
+ * and play progress.
+ *
+ * @extends Component
+ */
+
+ var ProgressControl = function (_Component) {
+ inherits(ProgressControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ProgressControl(player, options) {
+ classCallCheck(this, ProgressControl);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+ _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);
+
+ _this.enable();
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ ProgressControl.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-progress-control vjs-control'
+ });
+ };
+
+ /**
+ * When the mouse moves over the `ProgressControl`, the pointer position
+ * gets passed down to the `MouseTimeDisplay` component.
+ *
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ */
+
+
+ ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+ var seekBarEl = seekBar.el();
+ var seekBarRect = getBoundingClientRect(seekBarEl);
+ var seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+ // The default skin has a gap on either side of the `SeekBar`. This means
+ // that it's possible to trigger this behavior outside the boundaries of
+ // the `SeekBar`. This ensures we stay within it at all times.
+ if (seekBarPoint > 1) {
+ seekBarPoint = 1;
+ } else if (seekBarPoint < 0) {
+ seekBarPoint = 0;
+ }
+
+ if (mouseTimeDisplay) {
+ mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+ }
+ }
+ };
+
+ /**
+ * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+ *
+ * @method ProgressControl#throttledHandleMouseSeek
+ * @param {EventTarget~Event} event
+ * The `mousemove` event that caused this function to run.
+ *
+ * @listen mousemove
+ * @listen touchmove
+ */
+
+ /**
+ * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousemove
+ * @listens touchmove
+ */
+
+
+ ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseMove(event);
+ }
+ };
+
+ /**
+ * Are controls are currently enabled for this progress control.
+ *
+ * @return {boolean}
+ * true if controls are enabled, false otherwise
+ */
+
+
+ ProgressControl.prototype.enabled = function enabled() {
+ return this.enabled_;
+ };
+
+ /**
+ * Disable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.disable = function disable() {
+ this.children().forEach(function (child) {
+ return child.disable && child.disable();
+ });
+
+ if (!this.enabled()) {
+ return;
+ }
+
+ this.off(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.off(this.el_, 'mousemove', this.handleMouseMove);
+ this.handleMouseUp();
+
+ this.addClass('disabled');
+
+ this.enabled_ = false;
+ };
+
+ /**
+ * Enable all controls on the progress control and its children
+ */
+
+
+ ProgressControl.prototype.enable = function enable() {
+ this.children().forEach(function (child) {
+ return child.enable && child.enable();
+ });
+
+ if (this.enabled()) {
+ return;
+ }
+
+ this.on(['mousedown', 'touchstart'], this.handleMouseDown);
+ this.on(this.el_, 'mousemove', this.handleMouseMove);
+ this.removeClass('disabled');
+
+ this.enabled_ = true;
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseDown(event);
+ }
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+ var seekBar = this.getChild('seekBar');
+
+ if (seekBar) {
+ seekBar.handleMouseUp(event);
+ }
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+ this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ return ProgressControl;
+ }(Component);
+
+ /**
+ * Default options for `ProgressControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ProgressControl.prototype.options_ = {
+ children: ['seekBar']
+ };
+
+ Component.registerComponent('ProgressControl', ProgressControl);
+
+ /**
+ * @file fullscreen-toggle.js
+ */
+
+ /**
+ * Toggle fullscreen video
+ *
+ * @extends Button
+ */
+
+ var FullscreenToggle = function (_Button) {
+ inherits(FullscreenToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function FullscreenToggle(player, options) {
+ classCallCheck(this, FullscreenToggle);
+
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);
+
+ if (document_1[FullscreenApi.fullscreenEnabled] === false) {
+ _this.disable();
+ }
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Handles fullscreenchange on the player and change control text accordingly.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#fullscreenchange} event that caused this function to be
+ * called.
+ *
+ * @listens Player#fullscreenchange
+ */
+
+
+ FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {
+ if (this.player_.isFullscreen()) {
+ this.controlText('Non-Fullscreen');
+ } else {
+ this.controlText('Fullscreen');
+ }
+ };
+
+ /**
+ * This gets called when an `FullscreenToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ FullscreenToggle.prototype.handleClick = function handleClick(event) {
+ if (!this.player_.isFullscreen()) {
+ this.player_.requestFullscreen();
+ } else {
+ this.player_.exitFullscreen();
+ }
+ };
+
+ return FullscreenToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+
+ Component.registerComponent('FullscreenToggle', FullscreenToggle);
+
+ /**
+ * Check if volume control is supported and if it isn't hide the
+ * `Component` that was passed using the `vjs-hidden` class.
+ *
+ * @param {Component} self
+ * The component that should be hidden if volume is unsupported
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkVolumeSupport = function checkVolumeSupport(self, player) {
+ // hide volume controls when they're not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresVolumeControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file volume-level.js
+ */
+
+ /**
+ * Shows volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeLevel = function (_Component) {
+ inherits(VolumeLevel, _Component);
+
+ function VolumeLevel() {
+ classCallCheck(this, VolumeLevel);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ VolumeLevel.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-level',
+ innerHTML: '<span class="vjs-control-text"></span>'
+ });
+ };
+
+ return VolumeLevel;
+ }(Component);
+
+ Component.registerComponent('VolumeLevel', VolumeLevel);
+
+ /**
+ * @file volume-bar.js
+ */
+
+ /**
+ * The bar that contains the volume level and can be clicked on to adjust the level
+ *
+ * @extends Slider
+ */
+
+ var VolumeBar = function (_Slider) {
+ inherits(VolumeBar, _Slider);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function VolumeBar(player, options) {
+ classCallCheck(this, VolumeBar);
+
+ var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));
+
+ _this.on('slideractive', _this.updateLastVolume_);
+ _this.on(player, 'volumechange', _this.updateARIAAttributes);
+ player.ready(function () {
+ return _this.updateARIAAttributes();
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeBar.prototype.createEl = function createEl$$1() {
+ return _Slider.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-bar vjs-slider-bar'
+ }, {
+ 'aria-label': this.localize('Volume Level'),
+ 'aria-live': 'polite'
+ });
+ };
+
+ /**
+ * Handle mouse down on volume bar
+ *
+ * @param {EventTarget~Event} event
+ * The `mousedown` event that caused this to run.
+ *
+ * @listens mousedown
+ */
+
+
+ VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ _Slider.prototype.handleMouseDown.call(this, event);
+ };
+
+ /**
+ * Handle movement events on the {@link VolumeMenuButton}.
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run.
+ *
+ * @listens mousemove
+ */
+
+
+ VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ this.checkMuted();
+ this.player_.volume(this.calculateDistance(event));
+ };
+
+ /**
+ * If the player is muted unmute it.
+ */
+
+
+ VolumeBar.prototype.checkMuted = function checkMuted() {
+ if (this.player_.muted()) {
+ this.player_.muted(false);
+ }
+ };
+
+ /**
+ * Get percent of volume level
+ *
+ * @return {number}
+ * Volume level percent as a decimal number.
+ */
+
+
+ VolumeBar.prototype.getPercent = function getPercent() {
+ if (this.player_.muted()) {
+ return 0;
+ }
+ return this.player_.volume();
+ };
+
+ /**
+ * Increase volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepForward = function stepForward() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() + 0.1);
+ };
+
+ /**
+ * Decrease volume level for keyboard users
+ */
+
+
+ VolumeBar.prototype.stepBack = function stepBack() {
+ this.checkMuted();
+ this.player_.volume(this.player_.volume() - 0.1);
+ };
+
+ /**
+ * Update ARIA accessibility attributes
+ *
+ * @param {EventTarget~Event} [event]
+ * The `volumechange` event that caused this function to run.
+ *
+ * @listens Player#volumechange
+ */
+
+
+ VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {
+ var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+
+ this.el_.setAttribute('aria-valuenow', ariaValue);
+ this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+ };
+
+ /**
+ * Returns the current value of the player volume as a percentage
+ *
+ * @private
+ */
+
+
+ VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {
+ return Math.round(this.player_.volume() * 100);
+ };
+
+ /**
+ * When user starts dragging the VolumeBar, store the volume and listen for
+ * the end of the drag. When the drag ends, if the volume was set to zero,
+ * set lastVolume to the stored volume.
+ *
+ * @listens slideractive
+ * @private
+ */
+
+
+ VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {
+ var _this2 = this;
+
+ var volumeBeforeDrag = this.player_.volume();
+
+ this.one('sliderinactive', function () {
+ if (_this2.player_.volume() === 0) {
+ _this2.player_.lastVolume_(volumeBeforeDrag);
+ }
+ });
+ };
+
+ return VolumeBar;
+ }(Slider);
+
+ /**
+ * Default options for the `VolumeBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeBar.prototype.options_ = {
+ children: ['volumeLevel'],
+ barName: 'volumeLevel'
+ };
+
+ /**
+ * Call the update event for this Slider when this event happens on the player.
+ *
+ * @type {string}
+ */
+ VolumeBar.prototype.playerEvent = 'volumechange';
+
+ Component.registerComponent('VolumeBar', VolumeBar);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * The component for controlling the volume level
+ *
+ * @extends Component
+ */
+
+ var VolumeControl = function (_Component) {
+ inherits(VolumeControl, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumeControl(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumeControl);
+
+ options.vertical = options.vertical || false;
+
+ // Pass the vertical option down to the VolumeBar if
+ // the VolumeBar is turned on.
+ if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+ options.volumeBar = options.volumeBar || {};
+ options.volumeBar.vertical = options.vertical;
+ }
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ checkVolumeSupport(_this, player);
+
+ _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);
+
+ _this.on('mousedown', _this.handleMouseDown);
+ _this.on('touchstart', _this.handleMouseDown);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) or in focus we do not want to hide the VolumeBar
+ _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
+ _this.volumeBar.addClass('vjs-slider-active');
+ _this.addClass('vjs-slider-active');
+ _this.trigger('slideractive');
+ });
+
+ _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
+ _this.volumeBar.removeClass('vjs-slider-active');
+ _this.removeClass('vjs-slider-active');
+ _this.trigger('sliderinactive');
+ });
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumeControl.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-horizontal';
+
+ if (this.options_.vertical) {
+ orientationClass = 'vjs-volume-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-control vjs-control ' + orientationClass
+ });
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.on(doc, 'mouseup', this.handleMouseUp);
+ this.on(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mouseup` or `touchend` event that triggered this function.
+ *
+ * @listens touchend
+ * @listens mouseup
+ */
+
+
+ VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {
+ var doc = this.el_.ownerDocument;
+
+ this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+ this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+ this.off(doc, 'mouseup', this.handleMouseUp);
+ this.off(doc, 'touchend', this.handleMouseUp);
+ };
+
+ /**
+ * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+ *
+ * @param {EventTarget~Event} event
+ * `mousedown` or `touchstart` event that triggered this function
+ *
+ * @listens mousedown
+ * @listens touchstart
+ */
+
+
+ VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {
+ this.volumeBar.handleMouseMove(event);
+ };
+
+ return VolumeControl;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumeControl.prototype.options_ = {
+ children: ['volumeBar']
+ };
+
+ Component.registerComponent('VolumeControl', VolumeControl);
+
+ /**
+ * Check if muting volume is supported and if it isn't hide the mute toggle
+ * button.
+ *
+ * @param {Component} self
+ * A reference to the mute toggle button
+ *
+ * @param {Player} player
+ * A reference to the player
+ *
+ * @private
+ */
+ var checkMuteSupport = function checkMuteSupport(self, player) {
+ // hide mute toggle button if it's not supported by the current tech
+ if (player.tech_ && !player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ }
+
+ self.on(player, 'loadstart', function () {
+ if (!player.tech_.featuresMuteControl) {
+ self.addClass('vjs-hidden');
+ } else {
+ self.removeClass('vjs-hidden');
+ }
+ });
+ };
+
+ /**
+ * @file mute-toggle.js
+ */
+
+ /**
+ * A button component for muting the audio.
+ *
+ * @extends Button
+ */
+
+ var MuteToggle = function (_Button) {
+ inherits(MuteToggle, _Button);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function MuteToggle(player, options) {
+ classCallCheck(this, MuteToggle);
+
+ // hide this control if volume support is missing
+ var _this = possibleConstructorReturn(this, _Button.call(this, player, options));
+
+ checkMuteSupport(_this, player);
+
+ _this.on(player, ['loadstart', 'volumechange'], _this.update);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MuteToggle.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * This gets called when an `MuteToggle` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MuteToggle.prototype.handleClick = function handleClick(event) {
+ var vol = this.player_.volume();
+ var lastVolume = this.player_.lastVolume_();
+
+ if (vol === 0) {
+ var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+
+ this.player_.volume(volumeToSet);
+ this.player_.muted(false);
+ } else {
+ this.player_.muted(this.player_.muted() ? false : true);
+ }
+ };
+
+ /**
+ * Update the `MuteToggle` button based on the state of `volume` and `muted`
+ * on the player.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link Player#loadstart} event if this function was called
+ * through an event.
+ *
+ * @listens Player#loadstart
+ * @listens Player#volumechange
+ */
+
+
+ MuteToggle.prototype.update = function update(event) {
+ this.updateIcon_();
+ this.updateControlText_();
+ };
+
+ /**
+ * Update the appearance of the `MuteToggle` icon.
+ *
+ * Possible states (given `level` variable below):
+ * - 0: crossed out
+ * - 1: zero bars of volume
+ * - 2: one bar of volume
+ * - 3: two bars of volume
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateIcon_ = function updateIcon_() {
+ var vol = this.player_.volume();
+ var level = 3;
+
+ // in iOS when a player is loaded with muted attribute
+ // and volume is changed with a native mute button
+ // we want to make sure muted state is updated
+ if (IS_IOS) {
+ this.player_.muted(this.player_.tech_.el_.muted);
+ }
+
+ if (vol === 0 || this.player_.muted()) {
+ level = 0;
+ } else if (vol < 0.33) {
+ level = 1;
+ } else if (vol < 0.67) {
+ level = 2;
+ }
+
+ // TODO improve muted icon classes
+ for (var i = 0; i < 4; i++) {
+ removeClass(this.el_, 'vjs-vol-' + i);
+ }
+ addClass(this.el_, 'vjs-vol-' + level);
+ };
+
+ /**
+ * If `muted` has changed on the player, update the control text
+ * (`title` attribute on `vjs-mute-control` element and content of
+ * `vjs-control-text` element).
+ *
+ * @private
+ */
+
+
+ MuteToggle.prototype.updateControlText_ = function updateControlText_() {
+ var soundOff = this.player_.muted() || this.player_.volume() === 0;
+ var text = soundOff ? 'Unmute' : 'Mute';
+
+ if (this.controlText() !== text) {
+ this.controlText(text);
+ }
+ };
+
+ return MuteToggle;
+ }(Button);
+
+ /**
+ * The text that should display over the `MuteToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ MuteToggle.prototype.controlText_ = 'Mute';
+
+ Component.registerComponent('MuteToggle', MuteToggle);
+
+ /**
+ * @file volume-control.js
+ */
+
+ /**
+ * A Component to contain the MuteToggle and VolumeControl so that
+ * they can work together.
+ *
+ * @extends Component
+ */
+
+ var VolumePanel = function (_Component) {
+ inherits(VolumePanel, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function VolumePanel(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, VolumePanel);
+
+ if (typeof options.inline !== 'undefined') {
+ options.inline = options.inline;
+ } else {
+ options.inline = true;
+ }
+
+ // pass the inline option down to the VolumeControl as vertical if
+ // the VolumeControl is on.
+ if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+ options.volumeControl = options.volumeControl || {};
+ options.volumeControl.vertical = !options.inline;
+ }
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.on(player, ['loadstart'], _this.volumePanelState_);
+
+ // while the slider is active (the mouse has been pressed down and
+ // is dragging) we do not want to hide the VolumeBar
+ _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
+
+ _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
+ return _this;
+ }
+
+ /**
+ * Add vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#slideractive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderActive_ = function sliderActive_() {
+ this.addClass('vjs-slider-active');
+ };
+
+ /**
+ * Removes vjs-slider-active class to the VolumePanel
+ *
+ * @listens VolumeControl#sliderinactive
+ * @private
+ */
+
+
+ VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {
+ this.removeClass('vjs-slider-active');
+ };
+
+ /**
+ * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+ * depending on MuteToggle and VolumeControl state
+ *
+ * @listens Player#loadstart
+ * @private
+ */
+
+
+ VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {
+ // hide volume panel if neither volume control or mute toggle
+ // are displayed
+ if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-hidden');
+ }
+
+ // if only mute toggle is visible we don't want
+ // volume panel expanding when hovered or active
+ if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+ this.addClass('vjs-mute-toggle-only');
+ }
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ VolumePanel.prototype.createEl = function createEl() {
+ var orientationClass = 'vjs-volume-panel-horizontal';
+
+ if (!this.options_.inline) {
+ orientationClass = 'vjs-volume-panel-vertical';
+ }
+
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-volume-panel vjs-control ' + orientationClass
+ });
+ };
+
+ return VolumePanel;
+ }(Component);
+
+ /**
+ * Default options for the `VolumeControl`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ VolumePanel.prototype.options_ = {
+ children: ['muteToggle', 'volumeControl']
+ };
+
+ Component.registerComponent('VolumePanel', VolumePanel);
+
+ /**
+ * @file menu.js
+ */
+
+ /**
+ * The Menu component is used to build popup menus, including subtitle and
+ * captions selection menus.
+ *
+ * @extends Component
+ */
+
+ var Menu = function (_Component) {
+ inherits(Menu, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Player} player
+ * the player that this component should attach to
+ *
+ * @param {Object} [options]
+ * Object of option names and values
+ *
+ */
+ function Menu(player, options) {
+ classCallCheck(this, Menu);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ if (options) {
+ _this.menuButton_ = options.menuButton;
+ }
+
+ _this.focusedChild_ = -1;
+
+ _this.on('keydown', _this.handleKeyPress);
+ return _this;
+ }
+
+ /**
+ * Add a {@link MenuItem} to the menu.
+ *
+ * @param {Object|string} component
+ * The name or instance of the `MenuItem` to add.
+ *
+ */
+
+
+ Menu.prototype.addItem = function addItem(component) {
+ this.addChild(component);
+ component.on('click', bind(this, function (event) {
+ // Unpress the associated MenuButton, and move focus back to it
+ if (this.menuButton_) {
+ this.menuButton_.unpressButton();
+
+ // don't focus menu button if item is a caption settings item
+ // because focus will move elsewhere
+ if (component.name() !== 'CaptionSettingsMenuItem') {
+ this.menuButton_.focus();
+ }
+ }
+ }));
+ };
+
+ /**
+ * Create the `Menu`s DOM element.
+ *
+ * @return {Element}
+ * the element that was created
+ */
+
+
+ Menu.prototype.createEl = function createEl$$1() {
+ var contentElType = this.options_.contentElType || 'ul';
+
+ this.contentEl_ = createEl(contentElType, {
+ className: 'vjs-menu-content'
+ });
+
+ this.contentEl_.setAttribute('role', 'menu');
+
+ var el = _Component.prototype.createEl.call(this, 'div', {
+ append: this.contentEl_,
+ className: 'vjs-menu'
+ });
+
+ el.appendChild(this.contentEl_);
+
+ // Prevent clicks from bubbling up. Needed for Menu Buttons,
+ // where a click on the parent is significant
+ on(el, 'click', function (event) {
+ event.preventDefault();
+ event.stopImmediatePropagation();
+ });
+
+ return el;
+ };
+
+ Menu.prototype.dispose = function dispose() {
+ this.contentEl_ = null;
+
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Handle a `keydown` event on this menu. This listener is added in the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * A `keydown` event that happened on the menu.
+ *
+ * @listens keydown
+ */
+
+
+ Menu.prototype.handleKeyPress = function handleKeyPress(event) {
+ // Left and Down Arrows
+ if (event.which === 37 || event.which === 40) {
+ event.preventDefault();
+ this.stepForward();
+
+ // Up and Right Arrows
+ } else if (event.which === 38 || event.which === 39) {
+ event.preventDefault();
+ this.stepBack();
+ }
+ };
+
+ /**
+ * Move to next (lower) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepForward = function stepForward() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ + 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Move to previous (higher) menu item for keyboard users.
+ */
+
+
+ Menu.prototype.stepBack = function stepBack() {
+ var stepChild = 0;
+
+ if (this.focusedChild_ !== undefined) {
+ stepChild = this.focusedChild_ - 1;
+ }
+ this.focus(stepChild);
+ };
+
+ /**
+ * Set focus on a {@link MenuItem} in the `Menu`.
+ *
+ * @param {Object|string} [item=0]
+ * Index of child item set focus on.
+ */
+
+
+ Menu.prototype.focus = function focus() {
+ var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+
+ var children = this.children().slice();
+ var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);
+
+ if (haveTitle) {
+ children.shift();
+ }
+
+ if (children.length > 0) {
+ if (item < 0) {
+ item = 0;
+ } else if (item >= children.length) {
+ item = children.length - 1;
+ }
+
+ this.focusedChild_ = item;
+
+ children[item].el_.focus();
+ }
+ };
+
+ return Menu;
+ }(Component);
+
+ Component.registerComponent('Menu', Menu);
+
+ /**
+ * @file menu-button.js
+ */
+
+ /**
+ * A `MenuButton` class for any popup {@link Menu}.
+ *
+ * @extends Component
+ */
+
+ var MenuButton = function (_Component) {
+ inherits(MenuButton, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function MenuButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, MenuButton);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options));
+
+ _this.menuButton_ = new Button(player, options);
+
+ _this.menuButton_.controlText(_this.controlText_);
+ _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+ // Add buildCSSClass values to the button, not the wrapper
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
+ _this.menuButton_.removeClass('vjs-control');
+
+ _this.addChild(_this.menuButton_);
+
+ _this.update();
+
+ _this.enabled_ = true;
+
+ _this.on(_this.menuButton_, 'tap', _this.handleClick);
+ _this.on(_this.menuButton_, 'click', _this.handleClick);
+ _this.on(_this.menuButton_, 'focus', _this.handleFocus);
+ _this.on(_this.menuButton_, 'blur', _this.handleBlur);
+
+ _this.on('keydown', _this.handleSubmenuKeyPress);
+ return _this;
+ }
+
+ /**
+ * Update the menu based on the current state of its items.
+ */
+
+
+ MenuButton.prototype.update = function update() {
+ var menu = this.createMenu();
+
+ if (this.menu) {
+ this.menu.dispose();
+ this.removeChild(this.menu);
+ }
+
+ this.menu = menu;
+ this.addChild(menu);
+
+ /**
+ * Track the state of the menu button
+ *
+ * @type {Boolean}
+ * @private
+ */
+ this.buttonPressed_ = false;
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+
+ if (this.items && this.items.length <= this.hideThreshold_) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the menu and add all items to it.
+ *
+ * @return {Menu}
+ * The constructed menu
+ */
+
+
+ MenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player_, { menuButton: this });
+
+ /**
+ * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+ * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+ * it here because every time we run `createMenu` we need to reset the value.
+ *
+ * @protected
+ * @type {Number}
+ */
+ this.hideThreshold_ = 0;
+
+ // Add a title list item to the top
+ if (this.options_.title) {
+ var title = createEl('li', {
+ className: 'vjs-menu-title',
+ innerHTML: toTitleCase(this.options_.title),
+ tabIndex: -1
+ });
+
+ this.hideThreshold_ += 1;
+
+ menu.children_.unshift(title);
+ prependTo(title, menu.contentEl());
+ }
+
+ this.items = this.createItems();
+
+ if (this.items) {
+ // Add menu items to the menu
+ for (var i = 0; i < this.items.length; i++) {
+ menu.addItem(this.items[i]);
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Create the list of menu items. Specific to each subclass.
+ *
+ * @abstract
+ */
+
+
+ MenuButton.prototype.createItems = function createItems() {};
+
+ /**
+ * Create the `MenuButtons`s DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuButton.prototype.createEl = function createEl$$1() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildWrapperCSSClass()
+ }, {});
+ };
+
+ /**
+ * Allow sub components to stack CSS class names for the wrapper element
+ *
+ * @return {string}
+ * The constructed wrapper DOM `className`
+ */
+
+
+ MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ // TODO: Fix the CSS so that this isn't necessary
+ var buttonClass = Button.prototype.buildCSSClass();
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ MenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ var menuButtonClass = 'vjs-menu-button';
+
+ // If the inline option is passed, we want to use different styles altogether.
+ if (this.options_.inline === true) {
+ menuButtonClass += '-inline';
+ } else {
+ menuButtonClass += '-popup';
+ }
+
+ return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Get or set the localized control text that will be used for accessibility.
+ *
+ * > NOTE: This will come from the internal `menuButton_` element.
+ *
+ * @param {string} [text]
+ * Control text for element.
+ *
+ * @param {Element} [el=this.menuButton_.el()]
+ * Element to set the title on.
+ *
+ * @return {string}
+ * - The control text when getting
+ */
+
+
+ MenuButton.prototype.controlText = function controlText(text) {
+ var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();
+
+ return this.menuButton_.controlText(text, el);
+ };
+
+ /**
+ * Handle a click on a `MenuButton`.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuButton.prototype.handleClick = function handleClick(event) {
+ // When you click the button it adds focus, which will show the menu.
+ // So we'll remove focus when the mouse leaves the button. Focus is needed
+ // for tab navigation.
+
+ this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {
+ this.unpressButton();
+ this.el_.blur();
+ }));
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ } else {
+ this.pressButton();
+ }
+ };
+
+ /**
+ * Set the focus to the actual button, not to this element
+ */
+
+
+ MenuButton.prototype.focus = function focus() {
+ this.menuButton_.focus();
+ };
+
+ /**
+ * Remove the focus from the actual button, not this element
+ */
+
+
+ MenuButton.prototype.blur = function blur() {
+ this.menuButton_.blur();
+ };
+
+ /**
+ * This gets called when a `MenuButton` gains focus via a `focus` event.
+ * Turns on listening for `keydown` events. When they happen it
+ * calls `this.handleKeyPress`.
+ *
+ * @param {EventTarget~Event} event
+ * The `focus` event that caused this function to be called.
+ *
+ * @listens focus
+ */
+
+
+ MenuButton.prototype.handleFocus = function handleFocus() {
+ on(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Called when a `MenuButton` loses focus. Turns off the listener for
+ * `keydown` events. Which Stops `this.handleKeyPress` from getting called.
+ *
+ * @param {EventTarget~Event} event
+ * The `blur` event that caused this function to be called.
+ *
+ * @listens blur
+ */
+
+
+ MenuButton.prototype.handleBlur = function handleBlur() {
+ off(document_1, 'keydown', bind(this, this.handleKeyPress));
+ };
+
+ /**
+ * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+ * {@link ClickableComponent#handleKeyPress} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown` event that caused this function to be called.
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ // Up (38) key or Down (40) key press the 'button'
+ } else if (event.which === 38 || event.which === 40) {
+ if (!this.buttonPressed_) {
+ this.pressButton();
+ event.preventDefault();
+ }
+ }
+ };
+
+ /**
+ * Handle a `keydown` event on a sub-menu. The listener for this is added in
+ * the constructor.
+ *
+ * @param {EventTarget~Event} event
+ * Key press event
+ *
+ * @listens keydown
+ */
+
+
+ MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
+
+ // Escape (27) key or Tab (9) key unpress the 'button'
+ if (event.which === 27 || event.which === 9) {
+ if (this.buttonPressed_) {
+ this.unpressButton();
+ }
+ // Don't preventDefault for Tab key - we still want to lose focus
+ if (event.which !== 9) {
+ event.preventDefault();
+ // Set focus back to the menu button's button
+ this.menuButton_.el_.focus();
+ }
+ }
+ };
+
+ /**
+ * Put the current `MenuButton` into a pressed state.
+ */
+
+
+ MenuButton.prototype.pressButton = function pressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = true;
+ this.menu.lockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+ // set the focus into the submenu, except on iOS where it is resulting in
+ // undesired scrolling behavior when the player is in an iframe
+ if (IS_IOS && isInFrame()) {
+ // Return early so that the menu isn't focused
+ return;
+ }
+
+ this.menu.focus();
+ }
+ };
+
+ /**
+ * Take the current `MenuButton` out of a pressed state.
+ */
+
+
+ MenuButton.prototype.unpressButton = function unpressButton() {
+ if (this.enabled_) {
+ this.buttonPressed_ = false;
+ this.menu.unlockShowing();
+ this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+ }
+ };
+
+ /**
+ * Disable the `MenuButton`. Don't allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.disable = function disable() {
+ this.unpressButton();
+
+ this.enabled_ = false;
+ this.addClass('vjs-disabled');
+
+ this.menuButton_.disable();
+ };
+
+ /**
+ * Enable the `MenuButton`. Allow it to be clicked.
+ */
+
+
+ MenuButton.prototype.enable = function enable() {
+ this.enabled_ = true;
+ this.removeClass('vjs-disabled');
+
+ this.menuButton_.enable();
+ };
+
+ return MenuButton;
+ }(Component);
+
+ Component.registerComponent('MenuButton', MenuButton);
+
+ /**
+ * @file track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific track types (e.g. subtitles).
+ *
+ * @extends MenuButton
+ */
+
+ var TrackButton = function (_MenuButton) {
+ inherits(TrackButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TrackButton(player, options) {
+ classCallCheck(this, TrackButton);
+
+ var tracks = options.tracks;
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ if (_this.items.length <= 1) {
+ _this.hide();
+ }
+
+ if (!tracks) {
+ return possibleConstructorReturn(_this);
+ }
+
+ var updateHandler = bind(_this, _this.update);
+
+ tracks.addEventListener('removetrack', updateHandler);
+ tracks.addEventListener('addtrack', updateHandler);
+ _this.player_.on('ready', updateHandler);
+
+ _this.player_.on('dispose', function () {
+ tracks.removeEventListener('removetrack', updateHandler);
+ tracks.removeEventListener('addtrack', updateHandler);
+ });
+ return _this;
+ }
+
+ return TrackButton;
+ }(MenuButton);
+
+ Component.registerComponent('TrackButton', TrackButton);
+
+ /**
+ * @file menu-item.js
+ */
+
+ /**
+ * The component for a menu item. `<li>`
+ *
+ * @extends ClickableComponent
+ */
+
+ var MenuItem = function (_ClickableComponent) {
+ inherits(MenuItem, _ClickableComponent);
+
+ /**
+ * Creates an instance of the this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ *
+ */
+ function MenuItem(player, options) {
+ classCallCheck(this, MenuItem);
+
+ var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));
+
+ _this.selectable = options.selectable;
+ _this.isSelected_ = options.selected || false;
+ _this.multiSelectable = options.multiSelectable;
+
+ _this.selected(_this.isSelected_);
+
+ if (_this.selectable) {
+ if (_this.multiSelectable) {
+ _this.el_.setAttribute('role', 'menuitemcheckbox');
+ } else {
+ _this.el_.setAttribute('role', 'menuitemradio');
+ }
+ } else {
+ _this.el_.setAttribute('role', 'menuitem');
+ }
+ return _this;
+ }
+
+ /**
+ * Create the `MenuItem's DOM element
+ *
+ * @param {string} [type=li]
+ * Element's node type, not actually used, always set to `li`.
+ *
+ * @param {Object} [props={}]
+ * An object of properties that should be set on the element
+ *
+ * @param {Object} [attrs={}]
+ * An object of attributes that should be set on the element
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ MenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ // The control is textual, not just an icon
+ this.nonIconControl = true;
+
+ return _ClickableComponent.prototype.createEl.call(this, 'li', assign({
+ className: 'vjs-menu-item',
+ innerHTML: '<span class="vjs-menu-item-text">' + this.localize(this.options_.label) + '</span>',
+ tabIndex: -1
+ }, props), attrs);
+ };
+
+ /**
+ * Any click on a `MenuItem` puts it into the selected state.
+ * See {@link ClickableComponent#handleClick} for instances where this is called.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ MenuItem.prototype.handleClick = function handleClick(event) {
+ this.selected(true);
+ };
+
+ /**
+ * Set the state for this menu item as selected or not.
+ *
+ * @param {boolean} selected
+ * if the menu item is selected or not
+ */
+
+
+ MenuItem.prototype.selected = function selected(_selected) {
+ if (this.selectable) {
+ if (_selected) {
+ this.addClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'true');
+ // aria-checked isn't fully supported by browsers/screen readers,
+ // so indicate selected state to screen reader in the control text.
+ this.controlText(', selected');
+ this.isSelected_ = true;
+ } else {
+ this.removeClass('vjs-selected');
+ this.el_.setAttribute('aria-checked', 'false');
+ // Indicate un-selected state to screen reader
+ this.controlText('');
+ this.isSelected_ = false;
+ }
+ }
+ };
+
+ return MenuItem;
+ }(ClickableComponent);
+
+ Component.registerComponent('MenuItem', MenuItem);
+
+ /**
+ * @file text-track-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a language within a text track kind
+ *
+ * @extends MenuItem
+ */
+
+ var TextTrackMenuItem = function (_MenuItem) {
+ inherits(TextTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackMenuItem(player, options) {
+ classCallCheck(this, TextTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.textTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.mode === 'showing';
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+ var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
+ for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ args[_key2] = arguments[_key2];
+ }
+
+ _this.handleSelectedLanguageChange.apply(_this, args);
+ };
+
+ player.on(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.addEventListener('change', changeHandler);
+ tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ _this.on('dispose', function () {
+ player.off(['loadstart', 'texttrackchange'], changeHandler);
+ tracks.removeEventListener('change', changeHandler);
+ tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+ });
+
+ // iOS7 doesn't dispatch change events to TextTrackLists when an
+ // associated track's mode changes. Without something like
+ // Object.observe() (also not present on iOS7), it's not
+ // possible to detect changes to the mode attribute and polyfill
+ // the change event. As a poor substitute, we manually dispatch
+ // change events whenever the controls modify the mode.
+ if (tracks.onchange === undefined) {
+ var event = void 0;
+
+ _this.on(['tap', 'click'], function () {
+ if (_typeof(window_1.Event) !== 'object') {
+ // Android 2.3 throws an Illegal Constructor error for window.Event
+ try {
+ event = new window_1.Event('change');
+ } catch (err) {
+ // continue regardless of error
+ }
+ }
+
+ if (!event) {
+ event = document_1.createEvent('Event');
+ event.initEvent('change', true, true);
+ }
+
+ tracks.dispatchEvent(event);
+ });
+ }
+
+ // set the default state based on current tracks
+ _this.handleTracksChange();
+ return _this;
+ }
+
+ /**
+ * This gets called when an `TextTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} event
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ TextTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var kind = this.track.kind;
+ var kinds = this.track.kinds;
+ var tracks = this.player_.textTracks();
+
+ if (!kinds) {
+ kinds = [kind];
+ }
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ if (!tracks) {
+ return;
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ if (track === this.track && kinds.indexOf(track.kind) > -1) {
+ if (track.mode !== 'showing') {
+ track.mode = 'showing';
+ }
+ } else if (track.mode !== 'disabled') {
+ track.mode = 'disabled';
+ }
+ }
+ };
+
+ /**
+ * Handle text track list change
+ *
+ * @param {EventTarget~Event} event
+ * The `change` event that caused this function to be called.
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var shouldBeSelected = this.track.mode === 'showing';
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ if (this.track.mode === 'showing') {
+ var selectedLanguage = this.player_.cache_.selectedLanguage;
+
+ // Don't replace the kind of track across the same language
+ if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+ return;
+ }
+
+ this.player_.cache_.selectedLanguage = {
+ enabled: true,
+ language: this.track.language,
+ kind: this.track.kind
+ };
+ }
+ };
+
+ TextTrackMenuItem.prototype.dispose = function dispose() {
+ // remove reference to track object on dispose
+ this.track = null;
+
+ _MenuItem.prototype.dispose.call(this);
+ };
+
+ return TextTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+ /**
+ * @file off-text-track-menu-item.js
+ */
+
+ /**
+ * A special menu item for turning of a specific type of text track
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var OffTextTrackMenuItem = function (_TextTrackMenuItem) {
+ inherits(OffTextTrackMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function OffTextTrackMenuItem(player, options) {
+ classCallCheck(this, OffTextTrackMenuItem);
+
+ // Create pseudo track info
+ // Requires options['kind']
+ options.track = {
+ player: player,
+ kind: options.kind,
+ kinds: options.kinds,
+ default: false,
+ mode: 'disabled'
+ };
+
+ if (!options.kinds) {
+ options.kinds = [options.kind];
+ }
+
+ if (options.label) {
+ options.track.label = options.label;
+ } else {
+ options.track.label = options.kinds.join(' and ') + ' off';
+ }
+
+ // MenuItem is selectable
+ options.selectable = true;
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ options.multiSelectable = false;
+
+ return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ */
+
+
+ OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var shouldBeSelected = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+ shouldBeSelected = false;
+ break;
+ }
+ }
+
+ // Prevent redundant selected() calls because they may cause
+ // screen readers to read the appended control text unnecessarily
+ if (shouldBeSelected !== this.isSelected_) {
+ this.selected(shouldBeSelected);
+ }
+ };
+
+ OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
+ var tracks = this.player().textTracks();
+ var allHidden = true;
+
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+ allHidden = false;
+ break;
+ }
+ }
+
+ if (allHidden) {
+ this.player_.cache_.selectedLanguage = {
+ enabled: false
+ };
+ }
+ };
+
+ return OffTextTrackMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+ /**
+ * @file text-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific text track types (e.g. subtitles)
+ *
+ * @extends MenuButton
+ */
+
+ var TextTrackButton = function (_TrackButton) {
+ inherits(TextTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function TextTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, TextTrackButton);
+
+ options.tracks = player.textTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @param {TextTrackMenuItem[]} [items=[]]
+ * Existing array of items to use during creation
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items that were created
+ */
+
+
+ TextTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+ var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;
+
+
+ // Label is an override for the [track] off label
+ // USed to localise captions/subtitles
+ var label = void 0;
+
+ if (this.label_) {
+ label = this.label_ + ' off';
+ }
+ // Add an OFF menu item to turn all tracks off
+ items.push(new OffTextTrackMenuItem(this.player_, {
+ kinds: this.kinds_,
+ kind: this.kind_,
+ label: label
+ }));
+
+ this.hideThreshold_ += 1;
+
+ var tracks = this.player_.textTracks();
+
+ if (!Array.isArray(this.kinds_)) {
+ this.kinds_ = [this.kind_];
+ }
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // only add tracks that are of an appropriate kind and have a label
+ if (this.kinds_.indexOf(track.kind) > -1) {
+
+ var item = new TrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ });
+
+ item.addClass('vjs-' + track.kind + '-menu-item');
+ items.push(item);
+ }
+ }
+
+ return items;
+ };
+
+ return TextTrackButton;
+ }(TrackButton);
+
+ Component.registerComponent('TextTrackButton', TextTrackButton);
+
+ /**
+ * @file chapters-track-menu-item.js
+ */
+
+ /**
+ * The chapter track menu item
+ *
+ * @extends MenuItem
+ */
+
+ var ChaptersTrackMenuItem = function (_MenuItem) {
+ inherits(ChaptersTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ChaptersTrackMenuItem(player, options) {
+ classCallCheck(this, ChaptersTrackMenuItem);
+
+ var track = options.track;
+ var cue = options.cue;
+ var currentTime = player.currentTime();
+
+ // Modify options for parent MenuItem class's init.
+ options.selectable = true;
+ options.multiSelectable = false;
+ options.label = cue.text;
+ options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+ _this.cue = cue;
+ track.addEventListener('cuechange', bind(_this, _this.update));
+ return _this;
+ }
+
+ /**
+ * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player_.currentTime(this.cue.startTime);
+ this.update(this.cue.startTime);
+ };
+
+ /**
+ * Update chapter menu item
+ *
+ * @param {EventTarget~Event} [event]
+ * The `cuechange` event that caused this function to run.
+ *
+ * @listens TextTrack#cuechange
+ */
+
+
+ ChaptersTrackMenuItem.prototype.update = function update(event) {
+ var cue = this.cue;
+ var currentTime = this.player_.currentTime();
+
+ // vjs.log(currentTime, cue.startTime);
+ this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);
+ };
+
+ return ChaptersTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+ /**
+ * @file chapters-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting chapters
+ * Chapters act much differently than other text tracks
+ * Cues are navigation vs. other tracks of alternative languages
+ *
+ * @extends TextTrackButton
+ */
+
+ var ChaptersButton = function (_TextTrackButton) {
+ inherits(ChaptersButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this function is ready.
+ */
+ function ChaptersButton(player, options, ready) {
+ classCallCheck(this, ChaptersButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Update the menu based on the current state of its items.
+ *
+ * @param {EventTarget~Event} [event]
+ * An event that triggered this function to run.
+ *
+ * @listens TextTrackList#addtrack
+ * @listens TextTrackList#removetrack
+ * @listens TextTrackList#change
+ */
+
+
+ ChaptersButton.prototype.update = function update(event) {
+ if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {
+ this.setTrack(this.findChaptersTrack());
+ }
+ _TextTrackButton.prototype.update.call(this);
+ };
+
+ /**
+ * Set the currently selected track for the chapters button.
+ *
+ * @param {TextTrack} track
+ * The new track to select. Nothing will change if this is the currently selected
+ * track.
+ */
+
+
+ ChaptersButton.prototype.setTrack = function setTrack(track) {
+ if (this.track_ === track) {
+ return;
+ }
+
+ if (!this.updateHandler_) {
+ this.updateHandler_ = this.update.bind(this);
+ }
+
+ // here this.track_ refers to the old track instance
+ if (this.track_) {
+ var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (remoteTextTrackEl) {
+ remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+ }
+
+ this.track_ = null;
+ }
+
+ this.track_ = track;
+
+ // here this.track_ refers to the new track instance
+ if (this.track_) {
+ this.track_.mode = 'hidden';
+
+ var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+
+ if (_remoteTextTrackEl) {
+ _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+ }
+ }
+ };
+
+ /**
+ * Find the track object that is currently in use by this ChaptersButton
+ *
+ * @return {TextTrack|undefined}
+ * The current track or undefined if none was found.
+ */
+
+
+ ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {
+ var tracks = this.player_.textTracks() || [];
+
+ for (var i = tracks.length - 1; i >= 0; i--) {
+ // We will always choose the last track as our chaptersTrack
+ var track = tracks[i];
+
+ if (track.kind === this.kind_) {
+ return track;
+ }
+ }
+ };
+
+ /**
+ * Get the caption for the ChaptersButton based on the track label. This will also
+ * use the current tracks localized kind as a fallback if a label does not exist.
+ *
+ * @return {string}
+ * The tracks current label or the localized track kind.
+ */
+
+
+ ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {
+ if (this.track_ && this.track_.label) {
+ return this.track_.label;
+ }
+ return this.localize(toTitleCase(this.kind_));
+ };
+
+ /**
+ * Create menu from chapter track
+ *
+ * @return {Menu}
+ * New menu for the chapter buttons
+ */
+
+
+ ChaptersButton.prototype.createMenu = function createMenu() {
+ this.options_.title = this.getMenuCaption();
+ return _TextTrackButton.prototype.createMenu.call(this);
+ };
+
+ /**
+ * Create a menu item for each text track
+ *
+ * @return {TextTrackMenuItem[]}
+ * Array of menu items
+ */
+
+
+ ChaptersButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!this.track_) {
+ return items;
+ }
+
+ var cues = this.track_.cues;
+
+ if (!cues) {
+ return items;
+ }
+
+ for (var i = 0, l = cues.length; i < l; i++) {
+ var cue = cues[i];
+ var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });
+
+ items.push(mi);
+ }
+
+ return items;
+ };
+
+ return ChaptersButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ ChaptersButton.prototype.kind_ = 'chapters';
+
+ /**
+ * The text that should display over the `ChaptersButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ ChaptersButton.prototype.controlText_ = 'Chapters';
+
+ Component.registerComponent('ChaptersButton', ChaptersButton);
+
+ /**
+ * @file descriptions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting descriptions
+ *
+ * @extends TextTrackButton
+ */
+
+ var DescriptionsButton = function (_TextTrackButton) {
+ inherits(DescriptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function DescriptionsButton(player, options, ready) {
+ classCallCheck(this, DescriptionsButton);
+
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+
+ var tracks = player.textTracks();
+ var changeHandler = bind(_this, _this.handleTracksChange);
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ /**
+ * Handle text track change
+ *
+ * @param {EventTarget~Event} event
+ * The event that caused this function to run
+ *
+ * @listens TextTrackList#change
+ */
+
+
+ DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {
+ var tracks = this.player().textTracks();
+ var disabled = false;
+
+ // Check whether a track of a different kind is showing
+ for (var i = 0, l = tracks.length; i < l; i++) {
+ var track = tracks[i];
+
+ if (track.kind !== this.kind_ && track.mode === 'showing') {
+ disabled = true;
+ break;
+ }
+ }
+
+ // If another track is showing, disable this menu button
+ if (disabled) {
+ this.disable();
+ } else {
+ this.enable();
+ }
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return DescriptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ DescriptionsButton.prototype.kind_ = 'descriptions';
+
+ /**
+ * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ DescriptionsButton.prototype.controlText_ = 'Descriptions';
+
+ Component.registerComponent('DescriptionsButton', DescriptionsButton);
+
+ /**
+ * @file subtitles-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubtitlesButton = function (_TextTrackButton) {
+ inherits(SubtitlesButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function SubtitlesButton(player, options, ready) {
+ classCallCheck(this, SubtitlesButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ return SubtitlesButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ SubtitlesButton.prototype.kind_ = 'subtitles';
+
+ /**
+ * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ SubtitlesButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubtitlesButton', SubtitlesButton);
+
+ /**
+ * @file caption-settings-menu-item.js
+ */
+
+ /**
+ * The menu item for caption track settings menu
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var CaptionSettingsMenuItem = function (_TextTrackMenuItem) {
+ inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function CaptionSettingsMenuItem(player, options) {
+ classCallCheck(this, CaptionSettingsMenuItem);
+
+ options.track = {
+ player: player,
+ kind: options.kind,
+ label: options.kind + ' settings',
+ selectable: false,
+ default: false,
+ mode: 'disabled'
+ };
+
+ // CaptionSettingsMenuItem has no concept of 'selected'
+ options.selectable = false;
+
+ options.name = 'CaptionSettingsMenuItem';
+
+ var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));
+
+ _this.addClass('vjs-texttrack-settings');
+ _this.controlText(', opens ' + options.kind + ' settings dialog');
+ return _this;
+ }
+
+ /**
+ * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {
+ this.player().getChild('textTrackSettings').open();
+ };
+
+ return CaptionSettingsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+ /**
+ * @file captions-button.js
+ */
+
+ /**
+ * The button component for toggling and selecting captions
+ *
+ * @extends TextTrackButton
+ */
+
+ var CaptionsButton = function (_TextTrackButton) {
+ inherits(CaptionsButton, _TextTrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when this component is ready.
+ */
+ function CaptionsButton(player, options, ready) {
+ classCallCheck(this, CaptionsButton);
+ return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ CaptionsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ return _TextTrackButton.prototype.createItems.call(this, items);
+ };
+
+ return CaptionsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind` of TextTrack to look for to associate it with this menu.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ CaptionsButton.prototype.kind_ = 'captions';
+
+ /**
+ * The text that should display over the `CaptionsButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+ CaptionsButton.prototype.controlText_ = 'Captions';
+
+ Component.registerComponent('CaptionsButton', CaptionsButton);
+
+ /**
+ * @file subs-caps-menu-item.js
+ */
+
+ /**
+ * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+ * in the SubsCapsMenu.
+ *
+ * @extends TextTrackMenuItem
+ */
+
+ var SubsCapsMenuItem = function (_TextTrackMenuItem) {
+ inherits(SubsCapsMenuItem, _TextTrackMenuItem);
+
+ function SubsCapsMenuItem() {
+ classCallCheck(this, SubsCapsMenuItem);
+ return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));
+ }
+
+ SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'captions') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Captions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ return SubsCapsMenuItem;
+ }(TextTrackMenuItem);
+
+ Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+ /**
+ * @file sub-caps-button.js
+ */
+ /**
+ * The button component for toggling and selecting captions and/or subtitles
+ *
+ * @extends TextTrackButton
+ */
+
+ var SubsCapsButton = function (_TextTrackButton) {
+ inherits(SubsCapsButton, _TextTrackButton);
+
+ function SubsCapsButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, SubsCapsButton);
+
+ // Although North America uses "captions" in most cases for
+ // "captions and subtitles" other locales use "subtitles"
+ var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));
+
+ _this.label_ = 'subtitles';
+ if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
+ _this.label_ = 'captions';
+ }
+ _this.menuButton_.controlText(toTitleCase(_this.label_));
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create caption/subtitles menu items
+ *
+ * @return {CaptionSettingsMenuItem[]}
+ * The array of current menu items.
+ */
+
+
+ SubsCapsButton.prototype.createItems = function createItems() {
+ var items = [];
+
+ if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+ items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));
+
+ this.hideThreshold_ += 1;
+ }
+
+ items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
+ return items;
+ };
+
+ return SubsCapsButton;
+ }(TextTrackButton);
+
+ /**
+ * `kind`s of TextTrack to look for to associate it with this menu.
+ *
+ * @type {array}
+ * @private
+ */
+
+
+ SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+ /**
+ * The text that should display over the `SubsCapsButton`s controls.
+ *
+ *
+ * @type {string}
+ * @private
+ */
+ SubsCapsButton.prototype.controlText_ = 'Subtitles';
+
+ Component.registerComponent('SubsCapsButton', SubsCapsButton);
+
+ /**
+ * @file audio-track-menu-item.js
+ */
+
+ /**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+
+ var AudioTrackMenuItem = function (_MenuItem) {
+ inherits(AudioTrackMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function AudioTrackMenuItem(player, options) {
+ classCallCheck(this, AudioTrackMenuItem);
+
+ var track = options.track;
+ var tracks = player.audioTracks();
+
+ // Modify options for parent MenuItem class's init.
+ options.label = track.label || track.language || 'Unknown';
+ options.selected = track.enabled;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.track = track;
+
+ _this.addClass('vjs-' + track.kind + '-menu-item');
+
+ var changeHandler = function changeHandler() {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ _this.handleTracksChange.apply(_this, args);
+ };
+
+ tracks.addEventListener('change', changeHandler);
+ _this.on('dispose', function () {
+ tracks.removeEventListener('change', changeHandler);
+ });
+ return _this;
+ }
+
+ AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {
+ var innerHTML = '<span class="vjs-menu-item-text">' + this.localize(this.options_.label);
+
+ if (this.options_.track.kind === 'main-desc') {
+ innerHTML += '\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> ' + this.localize('Descriptions') + '</span>\n ';
+ }
+
+ innerHTML += '</span>';
+
+ var el = _MenuItem.prototype.createEl.call(this, type, assign({
+ innerHTML: innerHTML
+ }, props), attrs);
+
+ return el;
+ };
+
+ /**
+ * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+ * for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {
+ var tracks = this.player_.audioTracks();
+
+ _MenuItem.prototype.handleClick.call(this, event);
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ track.enabled = track === this.track;
+ }
+ };
+
+ /**
+ * Handle any {@link AudioTrack} change.
+ *
+ * @param {EventTarget~Event} [event]
+ * The {@link AudioTrackList#change} event that caused this to run.
+ *
+ * @listens AudioTrackList#change
+ */
+
+
+ AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {
+ this.selected(this.track.enabled);
+ };
+
+ return AudioTrackMenuItem;
+ }(MenuItem);
+
+ Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+ /**
+ * @file audio-track-button.js
+ */
+
+ /**
+ * The base class for buttons that toggle specific {@link AudioTrack} types.
+ *
+ * @extends TrackButton
+ */
+
+ var AudioTrackButton = function (_TrackButton) {
+ inherits(AudioTrackButton, _TrackButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options={}]
+ * The key/value store of player options.
+ */
+ function AudioTrackButton(player) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck(this, AudioTrackButton);
+
+ options.tracks = player.audioTracks();
+
+ return possibleConstructorReturn(this, _TrackButton.call(this, player, options));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);
+ };
+
+ AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create a menu item for each audio track
+ *
+ * @param {AudioTrackMenuItem[]} [items=[]]
+ * An array of existing menu items to use.
+ *
+ * @return {AudioTrackMenuItem[]}
+ * An array of menu items
+ */
+
+
+ AudioTrackButton.prototype.createItems = function createItems() {
+ var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+ // if there's only one audio track, there no point in showing it
+ this.hideThreshold_ = 1;
+
+ var tracks = this.player_.audioTracks();
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ items.push(new AudioTrackMenuItem(this.player_, {
+ track: track,
+ // MenuItem is selectable
+ selectable: true,
+ // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+ multiSelectable: false
+ }));
+ }
+
+ return items;
+ };
+
+ return AudioTrackButton;
+ }(TrackButton);
+
+ /**
+ * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ AudioTrackButton.prototype.controlText_ = 'Audio Track';
+ Component.registerComponent('AudioTrackButton', AudioTrackButton);
+
+ /**
+ * @file playback-rate-menu-item.js
+ */
+
+ /**
+ * The specific menu item type for selecting a playback rate.
+ *
+ * @extends MenuItem
+ */
+
+ var PlaybackRateMenuItem = function (_MenuItem) {
+ inherits(PlaybackRateMenuItem, _MenuItem);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuItem(player, options) {
+ classCallCheck(this, PlaybackRateMenuItem);
+
+ var label = options.rate;
+ var rate = parseFloat(label, 10);
+
+ // Modify options for parent MenuItem class's init.
+ options.label = label;
+ options.selected = rate === 1;
+ options.selectable = true;
+ options.multiSelectable = false;
+
+ var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));
+
+ _this.label = label;
+ _this.rate = rate;
+
+ _this.on(player, 'ratechange', _this.update);
+ return _this;
+ }
+
+ /**
+ * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {
+ _MenuItem.prototype.handleClick.call(this);
+ this.player().playbackRate(this.rate);
+ };
+
+ /**
+ * Update the PlaybackRateMenuItem when the playbackrate changes.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `ratechange` event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuItem.prototype.update = function update(event) {
+ this.selected(this.player().playbackRate() === this.rate);
+ };
+
+ return PlaybackRateMenuItem;
+ }(MenuItem);
+
+ /**
+ * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuItem.prototype.contentElType = 'button';
+
+ Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+ /**
+ * @file playback-rate-menu-button.js
+ */
+
+ /**
+ * The component for controlling the playback rate.
+ *
+ * @extends MenuButton
+ */
+
+ var PlaybackRateMenuButton = function (_MenuButton) {
+ inherits(PlaybackRateMenuButton, _MenuButton);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function PlaybackRateMenuButton(player, options) {
+ classCallCheck(this, PlaybackRateMenuButton);
+
+ var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));
+
+ _this.updateVisibility();
+ _this.updateLabel();
+
+ _this.on(player, 'loadstart', _this.updateVisibility);
+ _this.on(player, 'ratechange', _this.updateLabel);
+ return _this;
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {
+ var el = _MenuButton.prototype.createEl.call(this);
+
+ this.labelEl_ = createEl('div', {
+ className: 'vjs-playback-rate-value',
+ innerHTML: '1x'
+ });
+
+ el.appendChild(this.labelEl_);
+
+ return el;
+ };
+
+ PlaybackRateMenuButton.prototype.dispose = function dispose() {
+ this.labelEl_ = null;
+
+ _MenuButton.prototype.dispose.call(this);
+ };
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+
+
+ PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);
+ };
+
+ PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {
+ return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);
+ };
+
+ /**
+ * Create the playback rate menu
+ *
+ * @return {Menu}
+ * Menu object populated with {@link PlaybackRateMenuItem}s
+ */
+
+
+ PlaybackRateMenuButton.prototype.createMenu = function createMenu() {
+ var menu = new Menu(this.player());
+ var rates = this.playbackRates();
+
+ if (rates) {
+ for (var i = rates.length - 1; i >= 0; i--) {
+ menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));
+ }
+ }
+
+ return menu;
+ };
+
+ /**
+ * Updates ARIA accessibility attributes
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {
+ // Current playback rate
+ this.el().setAttribute('aria-valuenow', this.player().playbackRate());
+ };
+
+ /**
+ * This gets called when an `PlaybackRateMenuButton` is "clicked". See
+ * {@link ClickableComponent} for more detailed information on what a click can be.
+ *
+ * @param {EventTarget~Event} [event]
+ * The `keydown`, `tap`, or `click` event that caused this function to be
+ * called.
+ *
+ * @listens tap
+ * @listens click
+ */
+
+
+ PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {
+ // select next rate option
+ var currentRate = this.player().playbackRate();
+ var rates = this.playbackRates();
+
+ // this will select first one if the last one currently selected
+ var newRate = rates[0];
+
+ for (var i = 0; i < rates.length; i++) {
+ if (rates[i] > currentRate) {
+ newRate = rates[i];
+ break;
+ }
+ }
+ this.player().playbackRate(newRate);
+ };
+
+ /**
+ * Get possible playback rates
+ *
+ * @return {Array}
+ * All possible playback rates
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {
+ return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;
+ };
+
+ /**
+ * Get whether playback rates is supported by the tech
+ * and an array of playback rates exists
+ *
+ * @return {boolean}
+ * Whether changing playback rate is supported
+ */
+
+
+ PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {
+ return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+ };
+
+ /**
+ * Hide playback rate controls when they're no playback rate options to select
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#loadstart
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {
+ if (this.playbackRateSupported()) {
+ this.removeClass('vjs-hidden');
+ } else {
+ this.addClass('vjs-hidden');
+ }
+ };
+
+ /**
+ * Update button label when rate changed
+ *
+ * @param {EventTarget~Event} [event]
+ * The event that caused this function to run.
+ *
+ * @listens Player#ratechange
+ */
+
+
+ PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {
+ if (this.playbackRateSupported()) {
+ this.labelEl_.innerHTML = this.player().playbackRate() + 'x';
+ }
+ };
+
+ return PlaybackRateMenuButton;
+ }(MenuButton);
+
+ /**
+ * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+ *
+ * @type {string}
+ * @private
+ */
+
+
+ PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+
+ Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+ /**
+ * @file spacer.js
+ */
+
+ /**
+ * Just an empty spacer element that can be used as an append point for plugins, etc.
+ * Also can be used to create space between elements when necessary.
+ *
+ * @extends Component
+ */
+
+ var Spacer = function (_Component) {
+ inherits(Spacer, _Component);
+
+ function Spacer() {
+ classCallCheck(this, Spacer);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ Spacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ Spacer.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: this.buildCSSClass()
+ });
+ };
+
+ return Spacer;
+ }(Component);
+
+ Component.registerComponent('Spacer', Spacer);
+
+ /**
+ * @file custom-control-spacer.js
+ */
+
+ /**
+ * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+ *
+ * @extends Spacer
+ */
+
+ var CustomControlSpacer = function (_Spacer) {
+ inherits(CustomControlSpacer, _Spacer);
+
+ function CustomControlSpacer() {
+ classCallCheck(this, CustomControlSpacer);
+ return possibleConstructorReturn(this, _Spacer.apply(this, arguments));
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ */
+ CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ CustomControlSpacer.prototype.createEl = function createEl() {
+ var el = _Spacer.prototype.createEl.call(this, {
+ className: this.buildCSSClass()
+ });
+
+ // No-flex/table-cell mode requires there be some content
+ // in the cell to fill the remaining space of the table.
+ el.innerHTML = '\xA0';
+ return el;
+ };
+
+ return CustomControlSpacer;
+ }(Spacer);
+
+ Component.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+ /**
+ * @file control-bar.js
+ */
+
+ /**
+ * Container of main controls.
+ *
+ * @extends Component
+ */
+
+ var ControlBar = function (_Component) {
+ inherits(ControlBar, _Component);
+
+ function ControlBar() {
+ classCallCheck(this, ControlBar);
+ return possibleConstructorReturn(this, _Component.apply(this, arguments));
+ }
+
+ /**
+ * Create the `Component`'s DOM element
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+ ControlBar.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-control-bar',
+ dir: 'ltr'
+ });
+ };
+
+ return ControlBar;
+ }(Component);
+
+ /**
+ * Default options for `ControlBar`
+ *
+ * @type {Object}
+ * @private
+ */
+
+
+ ControlBar.prototype.options_ = {
+ children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+ };
+
+ Component.registerComponent('ControlBar', ControlBar);
+
+ /**
+ * @file error-display.js
+ */
+
+ /**
+ * A display that indicates an error has occurred. This means that the video
+ * is unplayable.
+ *
+ * @extends ModalDialog
+ */
+
+ var ErrorDisplay = function (_ModalDialog) {
+ inherits(ErrorDisplay, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function ErrorDisplay(player, options) {
+ classCallCheck(this, ErrorDisplay);
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.on(player, 'error', _this.open);
+ return _this;
+ }
+
+ /**
+ * Builds the default DOM `className`.
+ *
+ * @return {string}
+ * The DOM `className` for this object.
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {
+ return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);
+ };
+
+ /**
+ * Gets the localized error message based on the `Player`s error.
+ *
+ * @return {string}
+ * The `Player`s error message localized or an empty string.
+ */
+
+
+ ErrorDisplay.prototype.content = function content() {
+ var error = this.player().error();
+
+ return error ? this.localize(error.message) : '';
+ };
+
+ return ErrorDisplay;
+ }(ModalDialog);
+
+ /**
+ * The default options for an `ErrorDisplay`.
+ *
+ * @private
+ */
+
+
+ ErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {
+ pauseOnOpen: false,
+ fillAlways: true,
+ temporary: false,
+ uncloseable: true
+ });
+
+ Component.registerComponent('ErrorDisplay', ErrorDisplay);
+
+ /**
+ * @file text-track-settings.js
+ */
+
+ var LOCAL_STORAGE_KEY = 'vjs-text-track-settings';
+
+ var COLOR_BLACK = ['#000', 'Black'];
+ var COLOR_BLUE = ['#00F', 'Blue'];
+ var COLOR_CYAN = ['#0FF', 'Cyan'];
+ var COLOR_GREEN = ['#0F0', 'Green'];
+ var COLOR_MAGENTA = ['#F0F', 'Magenta'];
+ var COLOR_RED = ['#F00', 'Red'];
+ var COLOR_WHITE = ['#FFF', 'White'];
+ var COLOR_YELLOW = ['#FF0', 'Yellow'];
+
+ var OPACITY_OPAQUE = ['1', 'Opaque'];
+ var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+ var OPACITY_TRANS = ['0', 'Transparent'];
+
+ // Configuration for the various <select> elements in the DOM of this component.
+ //
+ // Possible keys include:
+ //
+ // `default`:
+ // The default option index. Only needs to be provided if not zero.
+ // `parser`:
+ // A function which is used to parse the value from the selected option in
+ // a customized way.
+ // `selector`:
+ // The selector used to find the associated <select> element.
+ var selectConfigs = {
+ backgroundColor: {
+ selector: '.vjs-bg-color > select',
+ id: 'captions-background-color-%s',
+ label: 'Color',
+ options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ backgroundOpacity: {
+ selector: '.vjs-bg-opacity > select',
+ id: 'captions-background-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+ },
+
+ color: {
+ selector: '.vjs-fg-color > select',
+ id: 'captions-foreground-color-%s',
+ label: 'Color',
+ options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+ },
+
+ edgeStyle: {
+ selector: '.vjs-edge-style > select',
+ id: '%s',
+ label: 'Text Edge Style',
+ options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+ },
+
+ fontFamily: {
+ selector: '.vjs-font-family > select',
+ id: 'captions-font-family-%s',
+ label: 'Font Family',
+ options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+ },
+
+ fontPercent: {
+ selector: '.vjs-font-percent > select',
+ id: 'captions-font-size-%s',
+ label: 'Font Size',
+ options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+ default: 2,
+ parser: function parser(v) {
+ return v === '1.00' ? null : Number(v);
+ }
+ },
+
+ textOpacity: {
+ selector: '.vjs-text-opacity > select',
+ id: 'captions-foreground-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_OPAQUE, OPACITY_SEMI]
+ },
+
+ // Options for this object are defined below.
+ windowColor: {
+ selector: '.vjs-window-color > select',
+ id: 'captions-window-color-%s',
+ label: 'Color'
+ },
+
+ // Options for this object are defined below.
+ windowOpacity: {
+ selector: '.vjs-window-opacity > select',
+ id: 'captions-window-opacity-%s',
+ label: 'Transparency',
+ options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+ }
+ };
+
+ selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+ /**
+ * Get the actual value of an option.
+ *
+ * @param {string} value
+ * The value to get
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function parseOptionValue(value, parser) {
+ if (parser) {
+ value = parser(value);
+ }
+
+ if (value && value !== 'none') {
+ return value;
+ }
+ }
+
+ /**
+ * Gets the value of the selected <option> element within a <select> element.
+ *
+ * @param {Element} el
+ * the element to look in
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value.
+ *
+ * @return {Mixed}
+ * - Will be `undefined` if no value exists
+ * - Will be `undefined` if the given value is "none".
+ * - Will be the actual value otherwise.
+ *
+ * @private
+ */
+ function getSelectedOptionValue(el, parser) {
+ var value = el.options[el.options.selectedIndex].value;
+
+ return parseOptionValue(value, parser);
+ }
+
+ /**
+ * Sets the selected <option> element within a <select> element based on a
+ * given value.
+ *
+ * @param {Element} el
+ * The element to look in.
+ *
+ * @param {string} value
+ * the property to look on.
+ *
+ * @param {Function} [parser]
+ * Optional function to adjust the value before comparing.
+ *
+ * @private
+ */
+ function setSelectedOption(el, value, parser) {
+ if (!value) {
+ return;
+ }
+
+ for (var i = 0; i < el.options.length; i++) {
+ if (parseOptionValue(el.options[i].value, parser) === value) {
+ el.selectedIndex = i;
+ break;
+ }
+ }
+ }
+
+ /**
+ * Manipulate Text Tracks settings.
+ *
+ * @extends ModalDialog
+ */
+
+ var TextTrackSettings = function (_ModalDialog) {
+ inherits(TextTrackSettings, _ModalDialog);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ */
+ function TextTrackSettings(player, options) {
+ classCallCheck(this, TextTrackSettings);
+
+ options.temporary = false;
+
+ var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));
+
+ _this.updateDisplay = bind(_this, _this.updateDisplay);
+
+ // fill the modal and pretend we have opened it
+ _this.fill();
+ _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
+
+ _this.endDialog = createEl('p', {
+ className: 'vjs-control-text',
+ textContent: _this.localize('End of dialog window.')
+ });
+ _this.el().appendChild(_this.endDialog);
+
+ _this.setDefaults();
+
+ // Grab `persistTextTrackSettings` from the player options if not passed in child options
+ if (options.persistTextTrackSettings === undefined) {
+ _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
+ }
+
+ _this.on(_this.$('.vjs-done-button'), 'click', function () {
+ _this.saveSettings();
+ _this.close();
+ });
+
+ _this.on(_this.$('.vjs-default-button'), 'click', function () {
+ _this.setDefaults();
+ _this.updateDisplay();
+ });
+
+ each(selectConfigs, function (config) {
+ _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
+ });
+
+ if (_this.options_.persistTextTrackSettings) {
+ _this.restoreSettings();
+ }
+ return _this;
+ }
+
+ TextTrackSettings.prototype.dispose = function dispose() {
+ this.endDialog = null;
+
+ _ModalDialog.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create a <select> element with configured options.
+ *
+ * @param {string} key
+ * Configuration key to use during creation.
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {
+ var _this2 = this;
+
+ var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+ var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';
+
+ var config = selectConfigs[key];
+ var id = config.id.replace('%s', this.id_);
+ var selectLabelledbyIds = [legendId, id].join(' ').trim();
+
+ return ['<' + type + ' id="' + id + '" class="' + (type === 'label' ? 'vjs-label' : '') + '">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby="' + selectLabelledbyIds + '">'].concat(config.options.map(function (o) {
+ var optionId = id + '-' + o[1].replace(/\W+/g, '');
+
+ return ['<option id="' + optionId + '" value="' + o[0] + '" ', 'aria-labelledby="' + selectLabelledbyIds + ' ' + optionId + '">', _this2.localize(o[1]), '</option>'].join('');
+ })).concat('</select>').join('');
+ };
+
+ /**
+ * Create foreground color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {
+ var legendId = 'captions-text-legend-' + this.id_;
+
+ return ['<fieldset class="vjs-fg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create background color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {
+ var legendId = 'captions-background-' + this.id_;
+
+ return ['<fieldset class="vjs-bg-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create window color element for the component
+ *
+ * @return {string}
+ * An HTML string.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {
+ var legendId = 'captions-window-' + this.id_;
+
+ return ['<fieldset class="vjs-window-color vjs-track-setting">', '<legend id="' + legendId + '">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+ };
+
+ /**
+ * Create color elements for the component
+ *
+ * @return {Element}
+ * The element that was created
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElColors_ = function createElColors_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-colors',
+ innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+ });
+ };
+
+ /**
+ * Create font elements for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElFont_ = function createElFont_() {
+ return createEl('div', {
+ className: 'vjs-track-settings-font',
+ innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+ });
+ };
+
+ /**
+ * Create controls for the component
+ *
+ * @return {Element}
+ * The element that was created.
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.createElControls_ = function createElControls_() {
+ var defaultsDescription = this.localize('restore all settings to the default values');
+
+ return createEl('div', {
+ className: 'vjs-track-settings-controls',
+ innerHTML: ['<button class="vjs-default-button" title="' + defaultsDescription + '">', this.localize('Reset'), '<span class="vjs-control-text"> ' + defaultsDescription + '</span>', '</button>', '<button class="vjs-done-button">' + this.localize('Done') + '</button>'].join('')
+ });
+ };
+
+ TextTrackSettings.prototype.content = function content() {
+ return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+ };
+
+ TextTrackSettings.prototype.label = function label() {
+ return this.localize('Caption Settings Dialog');
+ };
+
+ TextTrackSettings.prototype.description = function description() {
+ return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+ };
+
+ TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {
+ return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
+ };
+
+ /**
+ * Gets an object of text track settings (or null).
+ *
+ * @return {Object}
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.getValues = function getValues() {
+ var _this3 = this;
+
+ return reduce(selectConfigs, function (accum, config, key) {
+ var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
+
+ if (value !== undefined) {
+ accum[key] = value;
+ }
+
+ return accum;
+ }, {});
+ };
+
+ /**
+ * Sets text track settings from an object of values.
+ *
+ * @param {Object} values
+ * An object with config values parsed from the DOM or localStorage.
+ */
+
+
+ TextTrackSettings.prototype.setValues = function setValues(values) {
+ var _this4 = this;
+
+ each(selectConfigs, function (config, key) {
+ setSelectedOption(_this4.$(config.selector), values[key], config.parser);
+ });
+ };
+
+ /**
+ * Sets all `<select>` elements to their default values.
+ */
+
+
+ TextTrackSettings.prototype.setDefaults = function setDefaults() {
+ var _this5 = this;
+
+ each(selectConfigs, function (config) {
+ var index = config.hasOwnProperty('default') ? config.default : 0;
+
+ _this5.$(config.selector).selectedIndex = index;
+ });
+ };
+
+ /**
+ * Restore texttrack settings from localStorage
+ */
+
+
+ TextTrackSettings.prototype.restoreSettings = function restoreSettings() {
+ var values = void 0;
+
+ try {
+ values = JSON.parse(window_1.localStorage.getItem(LOCAL_STORAGE_KEY));
+ } catch (err) {
+ log$1.warn(err);
+ }
+
+ if (values) {
+ this.setValues(values);
+ }
+ };
+
+ /**
+ * Save text track settings to localStorage
+ */
+
+
+ TextTrackSettings.prototype.saveSettings = function saveSettings() {
+ if (!this.options_.persistTextTrackSettings) {
+ return;
+ }
+
+ var values = this.getValues();
+
+ try {
+ if (Object.keys(values).length) {
+ window_1.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));
+ } else {
+ window_1.localStorage.removeItem(LOCAL_STORAGE_KEY);
+ }
+ } catch (err) {
+ log$1.warn(err);
+ }
+ };
+
+ /**
+ * Update display of text track settings
+ */
+
+
+ TextTrackSettings.prototype.updateDisplay = function updateDisplay() {
+ var ttDisplay = this.player_.getChild('textTrackDisplay');
+
+ if (ttDisplay) {
+ ttDisplay.updateDisplay();
+ }
+ };
+
+ /**
+ * conditionally blur the element and refocus the captions button
+ *
+ * @private
+ */
+
+
+ TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {
+ this.previouslyActiveEl_ = null;
+ this.off(document_1, 'keydown', this.handleKeyDown);
+
+ var cb = this.player_.controlBar;
+ var subsCapsBtn = cb && cb.subsCapsButton;
+ var ccBtn = cb && cb.captionsButton;
+
+ if (subsCapsBtn) {
+ subsCapsBtn.focus();
+ } else if (ccBtn) {
+ ccBtn.focus();
+ }
+ };
+
+ return TextTrackSettings;
+ }(ModalDialog);
+
+ Component.registerComponent('TextTrackSettings', TextTrackSettings);
+
+ /**
+ * @file resize-manager.js
+ */
+
+ /**
+ * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+ *
+ * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+ *
+ * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+ * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+ * @example <caption>How to disable the resize manager</caption>
+ * const player = videojs('#vid', {
+ * resizeManager: false
+ * });
+ *
+ * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+ *
+ * @extends Component
+ */
+
+ var ResizeManager = function (_Component) {
+ inherits(ResizeManager, _Component);
+
+ /**
+ * Create the ResizeManager.
+ *
+ * @param {Object} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of ResizeManager options.
+ *
+ * @param {Object} [options.ResizeObserver]
+ * A polyfill for ResizeObserver can be passed in here.
+ * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+ */
+ function ResizeManager(player, options) {
+ classCallCheck(this, ResizeManager);
+
+ var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window_1.ResizeObserver;
+
+ // if `null` was passed, we want to disable the ResizeObserver
+ if (options.ResizeObserver === null) {
+ RESIZE_OBSERVER_AVAILABLE = false;
+ }
+
+ // Only create an element when ResizeObserver isn't available
+ var options_ = mergeOptions({
+ createEl: !RESIZE_OBSERVER_AVAILABLE,
+ reportTouchActivity: false
+ }, options);
+
+ var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));
+
+ _this.ResizeObserver = options.ResizeObserver || window_1.ResizeObserver;
+ _this.loadListener_ = null;
+ _this.resizeObserver_ = null;
+ _this.debouncedHandler_ = debounce(function () {
+ _this.resizeHandler();
+ }, 100, false, _this);
+
+ if (RESIZE_OBSERVER_AVAILABLE) {
+ _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
+ _this.resizeObserver_.observe(player.el());
+ } else {
+ _this.loadListener_ = function () {
+ if (!_this.el_ || !_this.el_.contentWindow) {
+ return;
+ }
+
+ on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);
+ };
+
+ _this.one('load', _this.loadListener_);
+ }
+ return _this;
+ }
+
+ ResizeManager.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'iframe', {
+ className: 'vjs-resize-manager'
+ });
+ };
+
+ /**
+ * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+ *
+ * @fires Player#playerresize
+ */
+
+
+ ResizeManager.prototype.resizeHandler = function resizeHandler() {
+ /**
+ * Called when the player size has changed
+ *
+ * @event Player#playerresize
+ * @type {EventTarget~Event}
+ */
+ // make sure player is still around to trigger
+ // prevents this from causing an error after dispose
+ if (!this.player_ || !this.player_.trigger) {
+ return;
+ }
+
+ this.player_.trigger('playerresize');
+ };
+
+ ResizeManager.prototype.dispose = function dispose() {
+ if (this.debouncedHandler_) {
+ this.debouncedHandler_.cancel();
+ }
+
+ if (this.resizeObserver_) {
+ if (this.player_.el()) {
+ this.resizeObserver_.unobserve(this.player_.el());
+ }
+ this.resizeObserver_.disconnect();
+ }
+
+ if (this.el_ && this.el_.contentWindow) {
+ off(this.el_.contentWindow, 'resize', this.debouncedHandler_);
+ }
+
+ if (this.loadListener_) {
+ this.off('load', this.loadListener_);
+ }
+
+ this.ResizeObserver = null;
+ this.resizeObserver = null;
+ this.debouncedHandler_ = null;
+ this.loadListener_ = null;
+ };
+
+ return ResizeManager;
+ }(Component);
+
+ Component.registerComponent('ResizeManager', ResizeManager);
+
+ /**
+ * This function is used to fire a sourceset when there is something
+ * similar to `mediaEl.load()` being called. It will try to find the source via
+ * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+ * with the source that was found or empty string if we cannot know. If it cannot
+ * find a source then `sourceset` will not be fired.
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset was setup on
+ *
+ * @return {boolean}
+ * returns false if the sourceset was not fired and true otherwise.
+ */
+ var sourcesetLoad = function sourcesetLoad(tech) {
+ var el = tech.el();
+
+ // if `el.src` is set, that source will be loaded.
+ if (el.hasAttribute('src')) {
+ tech.triggerSourceset(el.src);
+ return true;
+ }
+
+ /**
+ * Since there isn't a src property on the media element, source elements will be used for
+ * implementing the source selection algorithm. This happens asynchronously and
+ * for most cases were there is more than one source we cannot tell what source will
+ * be loaded, without re-implementing the source selection algorithm. At this time we are not
+ * going to do that. There are three special cases that we do handle here though:
+ *
+ * 1. If there are no sources, do not fire `sourceset`.
+ * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+ * 3. If there is more than one `<source>` but all of them have the same `src` url.
+ * That will be our src.
+ */
+ var sources = tech.$$('source');
+ var srcUrls = [];
+ var src = '';
+
+ // if there are no sources, do not fire sourceset
+ if (!sources.length) {
+ return false;
+ }
+
+ // only count valid/non-duplicate source elements
+ for (var i = 0; i < sources.length; i++) {
+ var url = sources[i].src;
+
+ if (url && srcUrls.indexOf(url) === -1) {
+ srcUrls.push(url);
+ }
+ }
+
+ // there were no valid sources
+ if (!srcUrls.length) {
+ return false;
+ }
+
+ // there is only one valid source element url
+ // use that
+ if (srcUrls.length === 1) {
+ src = srcUrls[0];
+ }
+
+ tech.triggerSourceset(src);
+ return true;
+ };
+
+ /**
+ * our implementation of an `innerHTML` descriptor for browsers
+ * that do not have one.
+ */
+ var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+ get: function get() {
+ return this.cloneNode(true).innerHTML;
+ },
+ set: function set(v) {
+ // make a dummy node to use innerHTML on
+ var dummy = document_1.createElement(this.nodeName.toLowerCase());
+
+ // set innerHTML to the value provided
+ dummy.innerHTML = v;
+
+ // make a document fragment to hold the nodes from dummy
+ var docFrag = document_1.createDocumentFragment();
+
+ // copy all of the nodes created by the innerHTML on dummy
+ // to the document fragment
+ while (dummy.childNodes.length) {
+ docFrag.appendChild(dummy.childNodes[0]);
+ }
+
+ // remove content
+ this.innerText = '';
+
+ // now we add all of that html in one by appending the
+ // document fragment. This is how innerHTML does it.
+ window_1.Element.prototype.appendChild.call(this, docFrag);
+
+ // then return the result that innerHTML's setter would
+ return this.innerHTML;
+ }
+ });
+
+ /**
+ * Get a property descriptor given a list of priorities and the
+ * property to get.
+ */
+ var getDescriptor = function getDescriptor(priority, prop) {
+ var descriptor = {};
+
+ for (var i = 0; i < priority.length; i++) {
+ descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+
+ if (descriptor && descriptor.set && descriptor.get) {
+ break;
+ }
+ }
+
+ descriptor.enumerable = true;
+ descriptor.configurable = true;
+
+ return descriptor;
+ };
+
+ var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, window_1.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+ };
+
+ /**
+ * Patches browser internal functions so that we can tell synchronously
+ * if a `<source>` was appended to the media element. For some reason this
+ * causes a `sourceset` if the the media element is ready and has no source.
+ * This happens when:
+ * - The page has just loaded and the media element does not have a source.
+ * - The media element was emptied of all sources, then `load()` was called.
+ *
+ * It does this by patching the following functions/properties when they are supported:
+ *
+ * - `append()` - can be used to add a `<source>` element to the media element
+ * - `appendChild()` - can be used to add a `<source>` element to the media element
+ * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element
+ * - `innerHTML` - can be used to add a `<source>` element to the media element
+ *
+ * @param {Html5} tech
+ * The tech object that sourceset is being setup on.
+ */
+ var firstSourceWatch = function firstSourceWatch(tech) {
+ var el = tech.el();
+
+ // make sure firstSourceWatch isn't setup twice.
+ if (el.resetSourceWatch_) {
+ return;
+ }
+
+ var old = {};
+ var innerDescriptor = getInnerHTMLDescriptor(tech);
+ var appendWrapper = function appendWrapper(appendFn) {
+ return function () {
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var retval = appendFn.apply(el, args);
+
+ sourcesetLoad(tech);
+
+ return retval;
+ };
+ };
+
+ ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
+ if (!el[k]) {
+ return;
+ }
+
+ // store the old function
+ old[k] = el[k];
+
+ // call the old function with a sourceset if a source
+ // was loaded
+ el[k] = appendWrapper(old[k]);
+ });
+
+ Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {
+ set: appendWrapper(innerDescriptor.set)
+ }));
+
+ el.resetSourceWatch_ = function () {
+ el.resetSourceWatch_ = null;
+ Object.keys(old).forEach(function (k) {
+ el[k] = old[k];
+ });
+
+ Object.defineProperty(el, 'innerHTML', innerDescriptor);
+ };
+
+ // on the first sourceset, we need to revert our changes
+ tech.one('sourceset', el.resetSourceWatch_);
+ };
+
+ /**
+ * our implementation of a `src` descriptor for browsers
+ * that do not have one.
+ */
+ var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+ get: function get() {
+ if (this.hasAttribute('src')) {
+ return getAbsoluteURL(window_1.Element.prototype.getAttribute.call(this, 'src'));
+ }
+
+ return '';
+ },
+ set: function set(v) {
+ window_1.Element.prototype.setAttribute.call(this, 'src', v);
+
+ return v;
+ }
+ });
+
+ var getSrcDescriptor = function getSrcDescriptor(tech) {
+ return getDescriptor([tech.el(), window_1.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
+ };
+
+ /**
+ * setup `sourceset` handling on the `Html5` tech. This function
+ * patches the following element properties/functions:
+ *
+ * - `src` - to determine when `src` is set
+ * - `setAttribute()` - to determine when `src` is set
+ * - `load()` - this re-triggers the source selection algorithm, and can
+ * cause a sourceset.
+ *
+ * If there is no source when we are adding `sourceset` support or during a `load()`
+ * we also patch the functions listed in `firstSourceWatch`.
+ *
+ * @param {Html5} tech
+ * The tech to patch
+ */
+ var setupSourceset = function setupSourceset(tech) {
+ if (!tech.featuresSourceset) {
+ return;
+ }
+
+ var el = tech.el();
+
+ // make sure sourceset isn't setup twice.
+ if (el.resetSourceset_) {
+ return;
+ }
+
+ var srcDescriptor = getSrcDescriptor(tech);
+ var oldSetAttribute = el.setAttribute;
+ var oldLoad = el.load;
+
+ Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {
+ set: function set(v) {
+ var retval = srcDescriptor.set.call(el, v);
+
+ // we use the getter here to get the actual value set on src
+ tech.triggerSourceset(el.src);
+
+ return retval;
+ }
+ }));
+
+ el.setAttribute = function (n, v) {
+ var retval = oldSetAttribute.call(el, n, v);
+
+ if (/src/i.test(n)) {
+ tech.triggerSourceset(el.src);
+ }
+
+ return retval;
+ };
+
+ el.load = function () {
+ var retval = oldLoad.call(el);
+
+ // if load was called, but there was no source to fire
+ // sourceset on. We have to watch for a source append
+ // as that can trigger a `sourceset` when the media element
+ // has no source
+ if (!sourcesetLoad(tech)) {
+ tech.triggerSourceset('');
+ firstSourceWatch(tech);
+ }
+
+ return retval;
+ };
+
+ if (el.currentSrc) {
+ tech.triggerSourceset(el.currentSrc);
+ } else if (!sourcesetLoad(tech)) {
+ firstSourceWatch(tech);
+ }
+
+ el.resetSourceset_ = function () {
+ el.resetSourceset_ = null;
+ el.load = oldLoad;
+ el.setAttribute = oldSetAttribute;
+ Object.defineProperty(el, 'src', srcDescriptor);
+ if (el.resetSourceWatch_) {
+ el.resetSourceWatch_();
+ }
+ };
+ };
+
+ var _templateObject$1 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n This may prevent text tracks from loading.']);
+
+ /**
+ * HTML5 Media Controller - Wrapper for HTML5 Media API
+ *
+ * @mixes Tech~SourceHandlerAdditions
+ * @extends Tech
+ */
+
+ var Html5 = function (_Tech) {
+ inherits(Html5, _Tech);
+
+ /**
+ * Create an instance of this Tech.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} ready
+ * Callback function to call when the `HTML5` Tech is ready.
+ */
+ function Html5(options, ready) {
+ classCallCheck(this, Html5);
+
+ var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));
+
+ var source = options.source;
+ var crossoriginTracks = false;
+
+ // Set the source if one is provided
+ // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+ // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+ // anyway so the error gets fired.
+ if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+ _this.setSource(source);
+ } else {
+ _this.handleLateInit_(_this.el_);
+ }
+
+ // setup sourceset after late sourceset/init
+ if (options.enableSourceset) {
+ _this.setupSourcesetHandling_();
+ }
+
+ if (_this.el_.hasChildNodes()) {
+
+ var nodes = _this.el_.childNodes;
+ var nodesLength = nodes.length;
+ var removeNodes = [];
+
+ while (nodesLength--) {
+ var node = nodes[nodesLength];
+ var nodeName = node.nodeName.toLowerCase();
+
+ if (nodeName === 'track') {
+ if (!_this.featuresNativeTextTracks) {
+ // Empty video tag tracks so the built-in player doesn't use them also.
+ // This may not be fast enough to stop HTML5 browsers from reading the tags
+ // so we'll need to turn off any default tracks if we're manually doing
+ // captions and subtitles. videoElement.textTracks
+ removeNodes.push(node);
+ } else {
+ // store HTMLTrackElement and TextTrack to remote list
+ _this.remoteTextTrackEls().addTrackElement_(node);
+ _this.remoteTextTracks().addTrack(node.track);
+ _this.textTracks().addTrack(node.track);
+ if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+ crossoriginTracks = true;
+ }
+ }
+ }
+ }
+
+ for (var i = 0; i < removeNodes.length; i++) {
+ _this.el_.removeChild(removeNodes[i]);
+ }
+ }
+
+ _this.proxyNativeTracks_();
+ if (_this.featuresNativeTextTracks && crossoriginTracks) {
+ log$1.warn(tsml(_templateObject$1));
+ }
+
+ // prevent iOS Safari from disabling metadata text tracks during native playback
+ _this.restoreMetadataTracksInIOSNativePlayer_();
+
+ // Determine if native controls should be used
+ // Our goal should be to get the custom controls on mobile solid everywhere
+ // so we can remove this all together. Right now this will block custom
+ // controls on touch enabled laptops like the Chrome Pixel
+ if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
+ _this.setControls(true);
+ }
+
+ // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+ // into a `fullscreenchange` event
+ _this.proxyWebkitFullscreen_();
+
+ _this.triggerReady();
+ return _this;
+ }
+
+ /**
+ * Dispose of `HTML5` media element and remove all tracks.
+ */
+
+
+ Html5.prototype.dispose = function dispose() {
+ if (this.el_ && this.el_.resetSourceset_) {
+ this.el_.resetSourceset_();
+ }
+ Html5.disposeMediaElement(this.el_);
+ this.options_ = null;
+
+ // tech will handle clearing of the emulated track list
+ _Tech.prototype.dispose.call(this);
+ };
+
+ /**
+ * Modify the media element so that we can detect when
+ * the source is changed. Fires `sourceset` just after the source has changed
+ */
+
+
+ Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {
+ setupSourceset(this);
+ };
+
+ /**
+ * When a captions track is enabled in the iOS Safari native player, all other
+ * tracks are disabled (including metadata tracks), which nulls all of their
+ * associated cue points. This will restore metadata tracks to their pre-fullscreen
+ * state in those cases so that cue points are not needlessly lost.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
+ var textTracks = this.textTracks();
+ var metadataTracksPreFullscreenState = void 0;
+
+ // captures a snapshot of every metadata track's current state
+ var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
+ metadataTracksPreFullscreenState = [];
+
+ for (var i = 0; i < textTracks.length; i++) {
+ var track = textTracks[i];
+
+ if (track.kind === 'metadata') {
+ metadataTracksPreFullscreenState.push({
+ track: track,
+ storedMode: track.mode
+ });
+ }
+ }
+ };
+
+ // snapshot each metadata track's initial state, and update the snapshot
+ // each time there is a track 'change' event
+ takeMetadataTrackSnapshot();
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ this.on('dispose', function () {
+ return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ });
+
+ var restoreTrackMode = function restoreTrackMode() {
+ for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+ var storedTrack = metadataTracksPreFullscreenState[i];
+
+ if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+ storedTrack.track.mode = storedTrack.storedMode;
+ }
+ }
+ // we only want this handler to be executed on the first 'change' event
+ textTracks.removeEventListener('change', restoreTrackMode);
+ };
+
+ // when we enter fullscreen playback, stop updating the snapshot and
+ // restore all track modes to their pre-fullscreen state
+ this.on('webkitbeginfullscreen', function () {
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', restoreTrackMode);
+ textTracks.addEventListener('change', restoreTrackMode);
+ });
+
+ // start updating the snapshot again after leaving fullscreen
+ this.on('webkitendfullscreen', function () {
+ // remove the listener before adding it just in case it wasn't previously removed
+ textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+ textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+ // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+ textTracks.removeEventListener('change', restoreTrackMode);
+ });
+ };
+
+ /**
+ * Attempt to force override of tracks for the given type
+ *
+ * @param {String} type - Track type to override, possible values include 'Audio',
+ * 'Video', and 'Text'.
+ * @param {Boolean} override - If set to true native audio/video will be overridden,
+ * otherwise native audio/video will potentially be used.
+ * @private
+ */
+
+
+ Html5.prototype.overrideNative_ = function overrideNative_(type, override) {
+ var _this2 = this;
+
+ // If there is no behavioral change don't add/remove listeners
+ if (override !== this['featuresNative' + type + 'Tracks']) {
+ return;
+ }
+
+ var lowerCaseType = type.toLowerCase();
+
+ if (this[lowerCaseType + 'TracksListeners_']) {
+ Object.keys(this[lowerCaseType + 'TracksListeners_']).forEach(function (eventName) {
+ var elTracks = _this2.el()[lowerCaseType + 'Tracks'];
+
+ elTracks.removeEventListener(eventName, _this2[lowerCaseType + 'TracksListeners_'][eventName]);
+ });
+ }
+
+ this['featuresNative' + type + 'Tracks'] = !override;
+ this[lowerCaseType + 'TracksListeners_'] = null;
+
+ this.proxyNativeTracksForType_(lowerCaseType);
+ };
+
+ /**
+ * Attempt to force override of native audio tracks.
+ *
+ * @param {Boolean} override - If set to true native audio will be overridden,
+ * otherwise native audio will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
+ this.overrideNative_('Audio', override);
+ };
+
+ /**
+ * Attempt to force override of native video tracks.
+ *
+ * @param {Boolean} override - If set to true native video will be overridden,
+ * otherwise native video will potentially be used.
+ */
+
+
+ Html5.prototype.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
+ this.overrideNative_('Video', override);
+ };
+
+ /**
+ * Proxy native track list events for the given type to our track
+ * lists if the browser we are playing in supports that type of track list.
+ *
+ * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
+ var _this3 = this;
+
+ var props = NORMAL[name];
+ var elTracks = this.el()[props.getterName];
+ var techTracks = this[props.getterName]();
+
+ if (!this['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {
+ return;
+ }
+ var listeners = {
+ change: function change(e) {
+ techTracks.trigger({
+ type: 'change',
+ target: techTracks,
+ currentTarget: techTracks,
+ srcElement: techTracks
+ });
+ },
+ addtrack: function addtrack(e) {
+ techTracks.addTrack(e.track);
+ },
+ removetrack: function removetrack(e) {
+ techTracks.removeTrack(e.track);
+ }
+ };
+ var removeOldTracks = function removeOldTracks() {
+ var removeTracks = [];
+
+ for (var i = 0; i < techTracks.length; i++) {
+ var found = false;
+
+ for (var j = 0; j < elTracks.length; j++) {
+ if (elTracks[j] === techTracks[i]) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ removeTracks.push(techTracks[i]);
+ }
+ }
+
+ while (removeTracks.length) {
+ techTracks.removeTrack(removeTracks.shift());
+ }
+ };
+
+ this[props.getterName + 'Listeners_'] = listeners;
+
+ Object.keys(listeners).forEach(function (eventName) {
+ var listener = listeners[eventName];
+
+ elTracks.addEventListener(eventName, listener);
+ _this3.on('dispose', function (e) {
+ return elTracks.removeEventListener(eventName, listener);
+ });
+ });
+
+ // Remove (native) tracks that are not used anymore
+ this.on('loadstart', removeOldTracks);
+ this.on('dispose', function (e) {
+ return _this3.off('loadstart', removeOldTracks);
+ });
+ };
+
+ /**
+ * Proxy all native track list events to our track lists if the browser we are playing
+ * in supports that type of track list.
+ *
+ * @private
+ */
+
+
+ Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {
+ var _this4 = this;
+
+ NORMAL.names.forEach(function (name) {
+ _this4.proxyNativeTracksForType_(name);
+ });
+ };
+
+ /**
+ * Create the `Html5` Tech's DOM element.
+ *
+ * @return {Element}
+ * The element that gets created.
+ */
+
+
+ Html5.prototype.createEl = function createEl$$1() {
+ var el = this.options_.tag;
+
+ // Check if this browser supports moving the element into the box.
+ // On the iPhone video will break if you move the element,
+ // So we have to create a brand new element.
+ // If we ingested the player div, we do not need to move the media element.
+ if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+
+ // If the original tag is still there, clone and remove it.
+ if (el) {
+ var clone = el.cloneNode(true);
+
+ if (el.parentNode) {
+ el.parentNode.insertBefore(clone, el);
+ }
+ Html5.disposeMediaElement(el);
+ el = clone;
+ } else {
+ el = document_1.createElement('video');
+
+ // determine if native controls should be used
+ var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+ var attributes = mergeOptions({}, tagAttributes);
+
+ if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+ delete attributes.controls;
+ }
+
+ setAttributes(el, assign(attributes, {
+ id: this.options_.techId,
+ class: 'vjs-tech'
+ }));
+ }
+
+ el.playerId = this.options_.playerId;
+ }
+
+ if (typeof this.options_.preload !== 'undefined') {
+ setAttribute(el, 'preload', this.options_.preload);
+ }
+
+ // Update specific tag settings, in case they were overridden
+ // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+ // when iOS/Safari or other browsers attempt to autoplay.
+ var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+
+ for (var i = 0; i < settingsAttrs.length; i++) {
+ var attr = settingsAttrs[i];
+ var value = this.options_[attr];
+
+ if (typeof value !== 'undefined') {
+ if (value) {
+ setAttribute(el, attr, attr);
+ } else {
+ removeAttribute(el, attr);
+ }
+ el[attr] = value;
+ }
+ }
+
+ return el;
+ };
+
+ /**
+ * This will be triggered if the loadstart event has already fired, before videojs was
+ * ready. Two known examples of when this can happen are:
+ * 1. If we're loading the playback object after it has started loading
+ * 2. The media is already playing the (often with autoplay on) then
+ *
+ * This function will fire another loadstart so that videojs can catchup.
+ *
+ * @fires Tech#loadstart
+ *
+ * @return {undefined}
+ * returns nothing.
+ */
+
+
+ Html5.prototype.handleLateInit_ = function handleLateInit_(el) {
+ if (el.networkState === 0 || el.networkState === 3) {
+ // The video element hasn't started loading the source yet
+ // or didn't find a source
+ return;
+ }
+
+ if (el.readyState === 0) {
+ // NetworkState is set synchronously BUT loadstart is fired at the
+ // end of the current stack, usually before setInterval(fn, 0).
+ // So at this point we know loadstart may have already fired or is
+ // about to fire, and either way the player hasn't seen it yet.
+ // We don't want to fire loadstart prematurely here and cause a
+ // double loadstart so we'll wait and see if it happens between now
+ // and the next loop, and fire it if not.
+ // HOWEVER, we also want to make sure it fires before loadedmetadata
+ // which could also happen between now and the next loop, so we'll
+ // watch for that also.
+ var loadstartFired = false;
+ var setLoadstartFired = function setLoadstartFired() {
+ loadstartFired = true;
+ };
+
+ this.on('loadstart', setLoadstartFired);
+
+ var triggerLoadstart = function triggerLoadstart() {
+ // We did miss the original loadstart. Make sure the player
+ // sees loadstart before loadedmetadata
+ if (!loadstartFired) {
+ this.trigger('loadstart');
+ }
+ };
+
+ this.on('loadedmetadata', triggerLoadstart);
+
+ this.ready(function () {
+ this.off('loadstart', setLoadstartFired);
+ this.off('loadedmetadata', triggerLoadstart);
+
+ if (!loadstartFired) {
+ // We did miss the original native loadstart. Fire it now.
+ this.trigger('loadstart');
+ }
+ });
+
+ return;
+ }
+
+ // From here on we know that loadstart already fired and we missed it.
+ // The other readyState events aren't as much of a problem if we double
+ // them, so not going to go to as much trouble as loadstart to prevent
+ // that unless we find reason to.
+ var eventsToTrigger = ['loadstart'];
+
+ // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+ eventsToTrigger.push('loadedmetadata');
+
+ // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+ if (el.readyState >= 2) {
+ eventsToTrigger.push('loadeddata');
+ }
+
+ // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+ if (el.readyState >= 3) {
+ eventsToTrigger.push('canplay');
+ }
+
+ // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+ if (el.readyState >= 4) {
+ eventsToTrigger.push('canplaythrough');
+ }
+
+ // We still need to give the player time to add event listeners
+ this.ready(function () {
+ eventsToTrigger.forEach(function (type) {
+ this.trigger(type);
+ }, this);
+ });
+ };
+
+ /**
+ * Set current time for the `HTML5` tech.
+ *
+ * @param {number} seconds
+ * Set the current time of the media to this.
+ */
+
+
+ Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {
+ try {
+ this.el_.currentTime = seconds;
+ } catch (e) {
+ log$1(e, 'Video is not ready. (Video.js)');
+ // this.warning(VideoJS.warnings.videoNotReady);
+ }
+ };
+
+ /**
+ * Get the current duration of the HTML5 media element.
+ *
+ * @return {number}
+ * The duration of the media or 0 if there is no duration.
+ */
+
+
+ Html5.prototype.duration = function duration() {
+ var _this5 = this;
+
+ // Android Chrome will report duration as Infinity for VOD HLS until after
+ // playback has started, which triggers the live display erroneously.
+ // Return NaN if playback has not started and trigger a durationupdate once
+ // the duration can be reliably known.
+ if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+ // Wait for the first `timeupdate` with currentTime > 0 - there may be
+ // several with 0
+ var checkProgress = function checkProgress() {
+ if (_this5.el_.currentTime > 0) {
+ // Trigger durationchange for genuinely live video
+ if (_this5.el_.duration === Infinity) {
+ _this5.trigger('durationchange');
+ }
+ _this5.off('timeupdate', checkProgress);
+ }
+ };
+
+ this.on('timeupdate', checkProgress);
+ return NaN;
+ }
+ return this.el_.duration || NaN;
+ };
+
+ /**
+ * Get the current width of the HTML5 media element.
+ *
+ * @return {number}
+ * The width of the HTML5 media element.
+ */
+
+
+ Html5.prototype.width = function width() {
+ return this.el_.offsetWidth;
+ };
+
+ /**
+ * Get the current height of the HTML5 media element.
+ *
+ * @return {number}
+ * The height of the HTML5 media element.
+ */
+
+
+ Html5.prototype.height = function height() {
+ return this.el_.offsetHeight;
+ };
+
+ /**
+ * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+ * `fullscreenchange` event.
+ *
+ * @private
+ * @fires fullscreenchange
+ * @listens webkitendfullscreen
+ * @listens webkitbeginfullscreen
+ * @listens webkitbeginfullscreen
+ */
+
+
+ Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
+ var _this6 = this;
+
+ if (!('webkitDisplayingFullscreen' in this.el_)) {
+ return;
+ }
+
+ var endFn = function endFn() {
+ this.trigger('fullscreenchange', { isFullscreen: false });
+ };
+
+ var beginFn = function beginFn() {
+ if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+ this.one('webkitendfullscreen', endFn);
+
+ this.trigger('fullscreenchange', { isFullscreen: true });
+ }
+ };
+
+ this.on('webkitbeginfullscreen', beginFn);
+ this.on('dispose', function () {
+ _this6.off('webkitbeginfullscreen', beginFn);
+ _this6.off('webkitendfullscreen', endFn);
+ });
+ };
+
+ /**
+ * Check if fullscreen is supported on the current playback device.
+ *
+ * @return {boolean}
+ * - True if fullscreen is supported.
+ * - False if fullscreen is not supported.
+ */
+
+
+ Html5.prototype.supportsFullScreen = function supportsFullScreen() {
+ if (typeof this.el_.webkitEnterFullScreen === 'function') {
+ var userAgent = window_1.navigator && window_1.navigator.userAgent || '';
+
+ // Seems to be broken in Chromium/Chrome && Safari in Leopard
+ if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Request that the `HTML5` Tech enter fullscreen.
+ */
+
+
+ Html5.prototype.enterFullScreen = function enterFullScreen() {
+ var video = this.el_;
+
+ if (video.paused && video.networkState <= video.HAVE_METADATA) {
+ // attempt to prime the video element for programmatic access
+ // this isn't necessary on the desktop but shouldn't hurt
+ this.el_.play();
+
+ // playing and pausing synchronously during the transition to fullscreen
+ // can get iOS ~6.1 devices into a play/pause loop
+ this.setTimeout(function () {
+ video.pause();
+ video.webkitEnterFullScreen();
+ }, 0);
+ } else {
+ video.webkitEnterFullScreen();
+ }
+ };
+
+ /**
+ * Request that the `HTML5` Tech exit fullscreen.
+ */
+
+
+ Html5.prototype.exitFullScreen = function exitFullScreen() {
+ this.el_.webkitExitFullScreen();
+ };
+
+ /**
+ * A getter/setter for the `Html5` Tech's source object.
+ * > Note: Please use {@link Html5#setSource}
+ *
+ * @param {Tech~SourceObject} [src]
+ * The source object you want to set on the `HTML5` techs element.
+ *
+ * @return {Tech~SourceObject|undefined}
+ * - The current source object when a source is not passed in.
+ * - undefined when setting
+ *
+ * @deprecated Since version 5.
+ */
+
+
+ Html5.prototype.src = function src(_src) {
+ if (_src === undefined) {
+ return this.el_.src;
+ }
+
+ // Setting src through `src` instead of `setSrc` will be deprecated
+ this.setSrc(_src);
+ };
+
+ /**
+ * Reset the tech by removing all sources and then calling
+ * {@link Html5.resetMediaElement}.
+ */
+
+
+ Html5.prototype.reset = function reset() {
+ Html5.resetMediaElement(this.el_);
+ };
+
+ /**
+ * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+ * the HTML5 media element.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object from the HTML5 tech. With a fallback to the
+ * elements source.
+ */
+
+
+ Html5.prototype.currentSrc = function currentSrc() {
+ if (this.currentSource_) {
+ return this.currentSource_.src;
+ }
+ return this.el_.currentSrc;
+ };
+
+ /**
+ * Set controls attribute for the HTML5 media Element.
+ *
+ * @param {string} val
+ * Value to set the controls attribute to
+ */
+
+
+ Html5.prototype.setControls = function setControls(val) {
+ this.el_.controls = !!val;
+ };
+
+ /**
+ * Create and returns a remote {@link TextTrack} object.
+ *
+ * @param {string} kind
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+ *
+ * @param {string} [label]
+ * Label to identify the text track
+ *
+ * @param {string} [language]
+ * Two letter language abbreviation
+ *
+ * @return {TextTrack}
+ * The TextTrack that gets created.
+ */
+
+
+ Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.addTextTrack.call(this, kind, label, language);
+ }
+
+ return this.el_.addTextTrack(kind, label, language);
+ };
+
+ /**
+ * Creates either native TextTrack or an emulated TextTrack depending
+ * on the value of `featuresNativeTextTracks`
+ *
+ * @param {Object} options
+ * The object should contain the options to initialize the TextTrack with.
+ *
+ * @param {string} [options.kind]
+ * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+ *
+ * @param {string} [options.label]
+ * Label to identify the text track
+ *
+ * @param {string} [options.language]
+ * Two letter language abbreviation.
+ *
+ * @param {boolean} [options.default]
+ * Default this track to on.
+ *
+ * @param {string} [options.id]
+ * The internal id to assign this track.
+ *
+ * @param {string} [options.src]
+ * A source url for the track.
+ *
+ * @return {HTMLTrackElement}
+ * The track element that gets created.
+ */
+
+
+ Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {
+ if (!this.featuresNativeTextTracks) {
+ return _Tech.prototype.createRemoteTextTrack.call(this, options);
+ }
+ var htmlTrackElement = document_1.createElement('track');
+
+ if (options.kind) {
+ htmlTrackElement.kind = options.kind;
+ }
+ if (options.label) {
+ htmlTrackElement.label = options.label;
+ }
+ if (options.language || options.srclang) {
+ htmlTrackElement.srclang = options.language || options.srclang;
+ }
+ if (options.default) {
+ htmlTrackElement.default = options.default;
+ }
+ if (options.id) {
+ htmlTrackElement.id = options.id;
+ }
+ if (options.src) {
+ htmlTrackElement.src = options.src;
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Creates a remote text track object and returns an html track element.
+ *
+ * @param {Object} options The object should contain values for
+ * kind, language, label, and src (location of the WebVTT file)
+ * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ * automatically removed from the video element whenever the source changes
+ * @return {HTMLTrackElement} An Html Track Element.
+ * This can be an emulated {@link HTMLTrackElement} or a native one.
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
+
+ if (this.featuresNativeTextTracks) {
+ this.el().appendChild(htmlTrackElement);
+ }
+
+ return htmlTrackElement;
+ };
+
+ /**
+ * Remove remote `TextTrack` from `TextTrackList` object
+ *
+ * @param {TextTrack} track
+ * `TextTrack` object to remove
+ */
+
+
+ Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
+ _Tech.prototype.removeRemoteTextTrack.call(this, track);
+
+ if (this.featuresNativeTextTracks) {
+ var tracks = this.$$('track');
+
+ var i = tracks.length;
+
+ while (i--) {
+ if (track === tracks[i] || track === tracks[i].track) {
+ this.el().removeChild(tracks[i]);
+ }
+ }
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object}
+ * An object with supported media playback quality metrics
+ */
+
+
+ Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ if (typeof this.el().getVideoPlaybackQuality === 'function') {
+ return this.el().getVideoPlaybackQuality();
+ }
+
+ var videoPlaybackQuality = {};
+
+ if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+ videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+ videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+ }
+
+ if (window_1.performance && typeof window_1.performance.now === 'function') {
+ videoPlaybackQuality.creationTime = window_1.performance.now();
+ } else if (window_1.performance && window_1.performance.timing && typeof window_1.performance.timing.navigationStart === 'number') {
+ videoPlaybackQuality.creationTime = window_1.Date.now() - window_1.performance.timing.navigationStart;
+ }
+
+ return videoPlaybackQuality;
+ };
+
+ return Html5;
+ }(Tech);
+
+ /* HTML5 Support Testing ---------------------------------------------------- */
+
+ if (isReal()) {
+
+ /**
+ * Element for testing browser HTML5 media capabilities
+ *
+ * @type {Element}
+ * @constant
+ * @private
+ */
+ Html5.TEST_VID = document_1.createElement('video');
+ var track = document_1.createElement('track');
+
+ track.kind = 'captions';
+ track.srclang = 'en';
+ track.label = 'English';
+ Html5.TEST_VID.appendChild(track);
+ }
+
+ /**
+ * Check if HTML5 media is supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if HTML5 media is supported.
+ * - False if HTML5 media is not supported.
+ */
+ Html5.isSupported = function () {
+ // IE with no Media Player is a LIAR! (#984)
+ try {
+ Html5.TEST_VID.volume = 0.5;
+ } catch (e) {
+ return false;
+ }
+
+ return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+ };
+
+ /**
+ * Check if the tech can support the given type
+ *
+ * @param {string} type
+ * The mimetype to check
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlayType = function (type) {
+ return Html5.TEST_VID.canPlayType(type);
+ };
+
+ /**
+ * Check if the tech can support the given source
+ * @param {Object} srcObj
+ * The source object
+ * @param {Object} options
+ * The options passed to the tech
+ * @return {string} 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.canPlaySource = function (srcObj, options) {
+ return Html5.canPlayType(srcObj.type);
+ };
+
+ /**
+ * Check if the volume can be changed in this browser/device.
+ * Volume cannot be changed in a lot of mobile devices.
+ * Specifically, it can't be changed from 1 on iOS.
+ *
+ * @return {boolean}
+ * - True if volume can be controlled
+ * - False otherwise
+ */
+ Html5.canControlVolume = function () {
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var volume = Html5.TEST_VID.volume;
+
+ Html5.TEST_VID.volume = volume / 2 + 0.1;
+ return volume !== Html5.TEST_VID.volume;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the volume can be muted in this browser/device.
+ * Some devices, e.g. iOS, don't allow changing volume
+ * but permits muting/unmuting.
+ *
+ * @return {bolean}
+ * - True if volume can be muted
+ * - False otherwise
+ */
+ Html5.canMuteVolume = function () {
+ try {
+ var muted = Html5.TEST_VID.muted;
+
+ // in some versions of iOS muted property doesn't always
+ // work, so we want to set both property and attribute
+ Html5.TEST_VID.muted = !muted;
+ if (Html5.TEST_VID.muted) {
+ setAttribute(Html5.TEST_VID, 'muted', 'muted');
+ } else {
+ removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+ }
+ return muted !== Html5.TEST_VID.muted;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if the playback rate can be changed in this browser/device.
+ *
+ * @return {boolean}
+ * - True if playback rate can be controlled
+ * - False otherwise
+ */
+ Html5.canControlPlaybackRate = function () {
+ // Playback rate API is implemented in Android Chrome, but doesn't do anything
+ // https://github.com/videojs/video.js/issues/3180
+ if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+ return false;
+ }
+ // IE will error if Windows Media Player not installed #3315
+ try {
+ var playbackRate = Html5.TEST_VID.playbackRate;
+
+ Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+ return playbackRate !== Html5.TEST_VID.playbackRate;
+ } catch (e) {
+ return false;
+ }
+ };
+
+ /**
+ * Check if we can override a video/audio elements attributes, with
+ * Object.defineProperty.
+ *
+ * @return {boolean}
+ * - True if builtin attributes can be overridden
+ * - False otherwise
+ */
+ Html5.canOverrideAttributes = function () {
+ // if we cannot overwrite the src/innerHTML property, there is no support
+ // iOS 7 safari for instance cannot do this.
+ try {
+ var noop = function noop() {};
+
+ Object.defineProperty(document_1.createElement('video'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'src', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('video'), 'innerHTML', { get: noop, set: noop });
+ Object.defineProperty(document_1.createElement('audio'), 'innerHTML', { get: noop, set: noop });
+ } catch (e) {
+ return false;
+ }
+
+ return true;
+ };
+
+ /**
+ * Check to see if native `TextTrack`s are supported by this browser/device.
+ *
+ * @return {boolean}
+ * - True if native `TextTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeTextTracks = function () {
+ return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+ };
+
+ /**
+ * Check to see if native `VideoTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `VideoTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeVideoTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+ };
+
+ /**
+ * Check to see if native `AudioTrack`s are supported by this browser/device
+ *
+ * @return {boolean}
+ * - True if native `AudioTrack`s are supported.
+ * - False otherwise
+ */
+ Html5.supportsNativeAudioTracks = function () {
+ return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+ };
+
+ /**
+ * An array of events available on the Html5 tech.
+ *
+ * @private
+ * @type {Array}
+ */
+ Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+ /**
+ * Boolean indicating whether the `Tech` supports volume control.
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlVolume}
+ */
+ Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports muting volume.
+ *
+ * @type {bolean}
+ * @default {@link Html5.canMuteVolume}
+ */
+ Html5.prototype.featuresMuteControl = Html5.canMuteVolume();
+
+ /**
+ * Boolean indicating whether the `Tech` supports changing the speed at which the media
+ * plays. Examples:
+ * - Set player to play 2x (twice) as fast
+ * - Set player to play 0.5x (half) as fast
+ *
+ * @type {boolean}
+ * @default {@link Html5.canControlPlaybackRate}
+ */
+ Html5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();
+
+ /**
+ * Boolean indicating whether the `Tech` supports the `sourceset` event.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresSourceset = Html5.canOverrideAttributes();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the media element
+ * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+ * false there. Everywhere else this should be true.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+ // TODO: Previous comment: No longer appears to be used. Can probably be removed.
+ // Is this true?
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+ * when going into fullscreen.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresFullscreenResize = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+ * If this is false, manual `progress` events will be triggered instead.
+ *
+ * @type {boolean}
+ * @default
+ */
+ Html5.prototype.featuresProgressEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+ * If this is false, manual `timeupdate` events will be triggered instead.
+ *
+ * @default
+ */
+ Html5.prototype.featuresTimeupdateEvents = true;
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeTextTracks}
+ */
+ Html5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeVideoTracks}
+ */
+ Html5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();
+
+ /**
+ * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+ *
+ * @type {boolean}
+ * @default {@link Html5.supportsNativeAudioTracks}
+ */
+ Html5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();
+
+ // HTML5 Feature detection and Device Fixes --------------------------------- //
+ var canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
+ var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
+
+ Html5.patchCanPlayType = function () {
+
+ // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
+ // Firefox and Chrome report correctly
+ if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
+ Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
+ if (type && mpegurlRE.test(type)) {
+ return 'maybe';
+ }
+ return canPlayType.call(this, type);
+ };
+ }
+ };
+
+ Html5.unpatchCanPlayType = function () {
+ var r = Html5.TEST_VID.constructor.prototype.canPlayType;
+
+ Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
+ return r;
+ };
+
+ // by default, patch the media element
+ Html5.patchCanPlayType();
+
+ Html5.disposeMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ if (el.parentNode) {
+ el.parentNode.removeChild(el);
+ }
+
+ // remove any child track or source nodes to prevent their loading
+ while (el.hasChildNodes()) {
+ el.removeChild(el.firstChild);
+ }
+
+ // remove any src reference. not setting `src=''` because that causes a warning
+ // in firefox
+ el.removeAttribute('src');
+
+ // force the media element to update its loading state by calling load()
+ // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // not supported
+ }
+ })();
+ }
+ };
+
+ Html5.resetMediaElement = function (el) {
+ if (!el) {
+ return;
+ }
+
+ var sources = el.querySelectorAll('source');
+ var i = sources.length;
+
+ while (i--) {
+ el.removeChild(sources[i]);
+ }
+
+ // remove any src reference.
+ // not setting `src=''` because that throws an error
+ el.removeAttribute('src');
+
+ if (typeof el.load === 'function') {
+ // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+ (function () {
+ try {
+ el.load();
+ } catch (e) {
+ // satisfy linter
+ }
+ })();
+ }
+ };
+
+ /* Native HTML5 element property wrapping ----------------------------------- */
+ // Wrap native boolean attributes with getters that check both property and attribute
+ // The list is as followed:
+ // muted, defaultMuted, autoplay, controls, loop, playsinline
+ [
+ /**
+ * Get the value of `muted` from the media element. `muted` indicates
+ * that the volume for the media should be set to silent. This does not actually change
+ * the `volume` attribute.
+ *
+ * @method Html5#muted
+ * @return {boolean}
+ * - True if the value of `volume` should be ignored and the audio set to silent.
+ * - False if the value of `volume` should be used.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+ * whether the media should start muted or not. Only changes the default state of the
+ * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+ * current state.
+ *
+ * @method Html5#defaultMuted
+ * @return {boolean}
+ * - The value of `defaultMuted` from the media element.
+ * - True indicates that the media should start muted.
+ * - False indicates that the media should not start muted
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Get the value of `autoplay` from the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#autoplay
+ * @return {boolean}
+ * - The value of `autoplay` from the media element.
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Get the value of `controls` from the media element. `controls` indicates
+ * whether the native media controls should be shown or hidden.
+ *
+ * @method Html5#controls
+ * @return {boolean}
+ * - The value of `controls` from the media element.
+ * - True indicates that native controls should be showing.
+ * - False indicates that native controls should be hidden.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+ */
+ 'controls',
+
+ /**
+ * Get the value of `loop` from the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#loop
+ * @return {boolean}
+ * - The value of `loop` from the media element.
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Get the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#playsinline
+ * @return {boolean}
+ * - The value of `playsinline` from the media element.
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop] || this.el_.hasAttribute(prop);
+ };
+ });
+
+ // Wrap native boolean attributes with setters that set both property and attribute
+ // The list is as followed:
+ // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+ // setControls is special-cased above
+ [
+ /**
+ * Set the value of `muted` on the media element. `muted` indicates that the current
+ * audio level should be silent.
+ *
+ * @method Html5#setMuted
+ * @param {boolean} muted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+ */
+ 'muted',
+
+ /**
+ * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+ * audio level should be silent, but will only effect the muted level on intial playback..
+ *
+ * @method Html5.prototype.setDefaultMuted
+ * @param {boolean} defaultMuted
+ * - True if the audio should be set to silent
+ * - False otherwise
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+ */
+ 'defaultMuted',
+
+ /**
+ * Set the value of `autoplay` on the media element. `autoplay` indicates
+ * that the media should start to play as soon as the page is ready.
+ *
+ * @method Html5#setAutoplay
+ * @param {boolean} autoplay
+ * - True indicates that the media should start as soon as the page loads.
+ * - False indicates that the media should not start as soon as the page loads.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+ */
+ 'autoplay',
+
+ /**
+ * Set the value of `loop` on the media element. `loop` indicates
+ * that the media should return to the start of the media and continue playing once
+ * it reaches the end.
+ *
+ * @method Html5#setLoop
+ * @param {boolean} loop
+ * - True indicates that playback should seek back to start once
+ * the end of a media is reached.
+ * - False indicates that playback should not loop back to the start when the
+ * end of the media is reached.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+ */
+ 'loop',
+
+ /**
+ * Set the value of `playsinline` from the media element. `playsinline` indicates
+ * to the browser that non-fullscreen playback is preferred when fullscreen
+ * playback is the native default, such as in iOS Safari.
+ *
+ * @method Html5#setPlaysinline
+ * @param {boolean} playsinline
+ * - True indicates that the media should play inline.
+ * - False indicates that the media should not play inline.
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+ 'playsinline'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+
+ if (v) {
+ this.el_.setAttribute(prop, prop);
+ } else {
+ this.el_.removeAttribute(prop);
+ }
+ };
+ });
+
+ // Wrap native properties with a getter
+ // The list is as followed
+ // paused, currentTime, buffered, volume, poster, preload, error, seeking
+ // seekable, ended, playbackRate, defaultPlaybackRate, played, networkState
+ // readyState, videoWidth, videoHeight
+ [
+ /**
+ * Get the value of `paused` from the media element. `paused` indicates whether the media element
+ * is currently paused or not.
+ *
+ * @method Html5#paused
+ * @return {boolean}
+ * The value of `paused` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+ */
+ 'paused',
+
+ /**
+ * Get the value of `currentTime` from the media element. `currentTime` indicates
+ * the current second that the media is at in playback.
+ *
+ * @method Html5#currentTime
+ * @return {number}
+ * The value of `currentTime` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+ */
+ 'currentTime',
+
+ /**
+ * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+ * object that represents the parts of the media that are already downloaded and
+ * available for playback.
+ *
+ * @method Html5#buffered
+ * @return {TimeRange}
+ * The value of `buffered` from the media element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+ */
+ 'buffered',
+
+ /**
+ * Get the value of `volume` from the media element. `volume` indicates
+ * the current playback volume of audio for a media. `volume` will be a value from 0
+ * (silent) to 1 (loudest and default).
+ *
+ * @method Html5#volume
+ * @return {number}
+ * The value of `volume` from the media element. Value will be between 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Get the value of `poster` from the media element. `poster` indicates
+ * that the url of an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#poster
+ * @return {string}
+ * The value of `poster` from the media element. Value will be a url to an
+ * image.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+ */
+ 'poster',
+
+ /**
+ * Get the value of `preload` from the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#preload
+ * @return {string}
+ * The value of `preload` from the media element. Will be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Get the value of the `error` from the media element. `error` indicates any
+ * MediaError that may have occurred during playback. If error returns null there is no
+ * current error.
+ *
+ * @method Html5#error
+ * @return {MediaError|null}
+ * The value of `error` from the media element. Will be `MediaError` if there
+ * is a current error and null otherwise.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+ */
+ 'error',
+
+ /**
+ * Get the value of `seeking` from the media element. `seeking` indicates whether the
+ * media is currently seeking to a new position or not.
+ *
+ * @method Html5#seeking
+ * @return {boolean}
+ * - The value of `seeking` from the media element.
+ * - True indicates that the media is currently seeking to a new position.
+ * - False indicates that the media is not seeking to a new position at this time.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+ */
+ 'seeking',
+
+ /**
+ * Get the value of `seekable` from the media element. `seekable` returns a
+ * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+ *
+ * @method Html5#seekable
+ * @return {TimeRange}
+ * The value of `seekable` from the media element. A `TimeRange` object
+ * indicating the current ranges of time that can be seeked to.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+ */
+ 'seekable',
+
+ /**
+ * Get the value of `ended` from the media element. `ended` indicates whether
+ * the media has reached the end or not.
+ *
+ * @method Html5#ended
+ * @return {boolean}
+ * - The value of `ended` from the media element.
+ * - True indicates that the media has ended.
+ * - False indicates that the media has not ended.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+ */
+ 'ended',
+
+ /**
+ * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+ * the rate at which the media is currently playing back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#playbackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media is currently playing back. This value will not indicate the current
+ * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+ *
+ * Examples:
+ * - if defaultPlaybackRate is set to 2, media will play twice as fast.
+ * - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.defaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'defaultPlaybackRate',
+
+ /**
+ * Get the value of `played` from the media element. `played` returns a `TimeRange`
+ * object representing points in the media timeline that have been played.
+ *
+ * @method Html5#played
+ * @return {TimeRange}
+ * The value of `played` from the media element. A `TimeRange` object indicating
+ * the ranges of time that have been played.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+ */
+ 'played',
+
+ /**
+ * Get the value of `networkState` from the media element. `networkState` indicates
+ * the current network state. It returns an enumeration from the following list:
+ * - 0: NETWORK_EMPTY
+ * - 1: NETWORK_IDLE
+ * - 2: NETWORK_LOADING
+ * - 3: NETWORK_NO_SOURCE
+ *
+ * @method Html5#networkState
+ * @return {number}
+ * The value of `networkState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+ */
+ 'networkState',
+
+ /**
+ * Get the value of `readyState` from the media element. `readyState` indicates
+ * the current state of the media element. It returns an enumeration from the
+ * following list:
+ * - 0: HAVE_NOTHING
+ * - 1: HAVE_METADATA
+ * - 2: HAVE_CURRENT_DATA
+ * - 3: HAVE_FUTURE_DATA
+ * - 4: HAVE_ENOUGH_DATA
+ *
+ * @method Html5#readyState
+ * @return {number}
+ * The value of `readyState` from the media element. This will be a number
+ * from the list in the description.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+ */
+ 'readyState',
+
+ /**
+ * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+ * the current width of the video in css pixels.
+ *
+ * @method Html5#videoWidth
+ * @return {number}
+ * The value of `videoWidth` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoWidth',
+
+ /**
+ * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+ * the current height of the video in css pixels.
+ *
+ * @method Html5#videoHeight
+ * @return {number}
+ * The value of `videoHeight` from the video element. This will be a number
+ * in css pixels.
+ *
+ * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+ */
+ 'videoHeight'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop];
+ };
+ });
+
+ // Wrap native properties with a setter in this format:
+ // set + toTitleCase(name)
+ // The list is as follows:
+ // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate
+ [
+ /**
+ * Set the value of `volume` on the media element. `volume` indicates the current
+ * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+ * so on.
+ *
+ * @method Html5#setVolume
+ * @param {number} percentAsDecimal
+ * The volume percent as a decimal. Valid range is from 0-1.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+ */
+ 'volume',
+
+ /**
+ * Set the value of `src` on the media element. `src` indicates the current
+ * {@link Tech~SourceObject} for the media.
+ *
+ * @method Html5#setSrc
+ * @param {Tech~SourceObject} src
+ * The source object to set as the current source.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+ */
+ 'src',
+
+ /**
+ * Set the value of `poster` on the media element. `poster` is the url to
+ * an image file that can/will be shown when no media data is available.
+ *
+ * @method Html5#setPoster
+ * @param {string} poster
+ * The url to an image that should be used as the `poster` for the media
+ * element.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+ */
+ 'poster',
+
+ /**
+ * Set the value of `preload` on the media element. `preload` indicates
+ * what should download before the media is interacted with. It can have the following
+ * values:
+ * - none: nothing should be downloaded
+ * - metadata: poster and the first few frames of the media may be downloaded to get
+ * media dimensions and other metadata
+ * - auto: allow the media and metadata for the media to be downloaded before
+ * interaction
+ *
+ * @method Html5#setPreload
+ * @param {string} preload
+ * The value of `preload` to set on the media element. Must be 'none', 'metadata',
+ * or 'auto'.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+ */
+ 'preload',
+
+ /**
+ * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+ * the rate at which the media should play back. Examples:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5#setPlaybackRate
+ * @return {number}
+ * The value of `playbackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+ */
+ 'playbackRate',
+
+ /**
+ * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+ * the rate at which the media should play back upon initial startup. Changing this value
+ * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+ *
+ * Example Values:
+ * - if playbackRate is set to 2, media will play twice as fast.
+ * - if playbackRate is set to 0.5, media will play half as fast.
+ *
+ * @method Html5.prototype.setDefaultPlaybackRate
+ * @return {number}
+ * The value of `defaultPlaybackRate` from the media element. A number indicating
+ * the current playback speed of the media, where 1 is normal speed.
+ *
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+ */
+ 'defaultPlaybackRate'].forEach(function (prop) {
+ Html5.prototype['set' + toTitleCase(prop)] = function (v) {
+ this.el_[prop] = v;
+ };
+ });
+
+ // wrap native functions with a function
+ // The list is as follows:
+ // pause, load, play
+ [
+ /**
+ * A wrapper around the media elements `pause` function. This will call the `HTML5`
+ * media elements `pause` function.
+ *
+ * @method Html5#pause
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+ */
+ 'pause',
+
+ /**
+ * A wrapper around the media elements `load` function. This will call the `HTML5`s
+ * media element `load` function.
+ *
+ * @method Html5#load
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+ */
+ 'load',
+
+ /**
+ * A wrapper around the media elements `play` function. This will call the `HTML5`s
+ * media element `play` function.
+ *
+ * @method Html5#play
+ * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+ */
+ 'play'].forEach(function (prop) {
+ Html5.prototype[prop] = function () {
+ return this.el_[prop]();
+ };
+ });
+
+ Tech.withSourceHandlers(Html5);
+
+ /**
+ * Native source handler for Html5, simply passes the source to the media element.
+ *
+ * @property {Tech~SourceObject} source
+ * The source object
+ *
+ * @property {Html5} tech
+ * The instance of the HTML5 tech.
+ */
+ Html5.nativeSourceHandler = {};
+
+ /**
+ * Check if the media element can play the given mime type.
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+ Html5.nativeSourceHandler.canPlayType = function (type) {
+ // IE without MediaPlayer throws an error (#519)
+ try {
+ return Html5.TEST_VID.canPlayType(type);
+ } catch (e) {
+ return '';
+ }
+ };
+
+ /**
+ * Check if the media element can handle a source natively.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Object} [options]
+ * Options to be passed to the tech.
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string).
+ */
+ Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+
+ // If a type was provided we should rely on that
+ if (source.type) {
+ return Html5.nativeSourceHandler.canPlayType(source.type);
+
+ // If no type, fall back to checking 'video/[EXTENSION]'
+ } else if (source.src) {
+ var ext = getFileExtension(source.src);
+
+ return Html5.nativeSourceHandler.canPlayType('video/' + ext);
+ }
+
+ return '';
+ };
+
+ /**
+ * Pass the source to the native media element.
+ *
+ * @param {Tech~SourceObject} source
+ * The source object
+ *
+ * @param {Html5} tech
+ * The instance of the Html5 tech
+ *
+ * @param {Object} [options]
+ * The options to pass to the source
+ */
+ Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+ tech.setSrc(source.src);
+ };
+
+ /**
+ * A noop for the native dispose function, as cleanup is not needed.
+ */
+ Html5.nativeSourceHandler.dispose = function () {};
+
+ // Register the native source handler
+ Html5.registerSourceHandler(Html5.nativeSourceHandler);
+
+ Tech.registerTech('Html5', Html5);
+
+ var _templateObject$2 = taggedTemplateLiteralLoose(['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n '], ['\n Using the tech directly can be dangerous. I hope you know what you\'re doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n ']);
+
+ // The following tech events are simply re-triggered
+ // on the player when they happen
+ var TECH_EVENTS_RETRIGGER = [
+ /**
+ * Fired while the user agent is downloading media data.
+ *
+ * @event Player#progress
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `progress` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechProgress_
+ * @fires Player#progress
+ * @listens Tech#progress
+ */
+ 'progress',
+
+ /**
+ * Fires when the loading of an audio/video is aborted.
+ *
+ * @event Player#abort
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `abort` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechAbort_
+ * @fires Player#abort
+ * @listens Tech#abort
+ */
+ 'abort',
+
+ /**
+ * Fires when the browser is intentionally not getting media data.
+ *
+ * @event Player#suspend
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechSuspend_
+ * @fires Player#suspend
+ * @listens Tech#suspend
+ */
+ 'suspend',
+
+ /**
+ * Fires when the current playlist is empty.
+ *
+ * @event Player#emptied
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechEmptied_
+ * @fires Player#emptied
+ * @listens Tech#emptied
+ */
+ 'emptied',
+ /**
+ * Fires when the browser is trying to get media data, but data is not available.
+ *
+ * @event Player#stalled
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechStalled_
+ * @fires Player#stalled
+ * @listens Tech#stalled
+ */
+ 'stalled',
+
+ /**
+ * Fires when the browser has loaded meta data for the audio/video.
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+ /**
+ * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoadedmetadata_
+ * @fires Player#loadedmetadata
+ * @listens Tech#loadedmetadata
+ */
+ 'loadedmetadata',
+
+ /**
+ * Fires when the browser has loaded the current frame of the audio/video.
+ *
+ * @event Player#loadeddata
+ * @type {event}
+ */
+ /**
+ * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechLoaddeddata_
+ * @fires Player#loadeddata
+ * @listens Tech#loadeddata
+ */
+ 'loadeddata',
+
+ /**
+ * Fires when the current playback position has changed.
+ *
+ * @event Player#timeupdate
+ * @type {event}
+ */
+ /**
+ * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTimeUpdate_
+ * @fires Player#timeupdate
+ * @listens Tech#timeupdate
+ */
+ 'timeupdate',
+
+ /**
+ * Fires when the video's intrinsic dimensions change
+ *
+ * @event Player#resize
+ * @type {event}
+ */
+ /**
+ * Retrigger the `resize` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechResize_
+ * @fires Player#resize
+ * @listens Tech#resize
+ */
+ 'resize',
+
+ /**
+ * Fires when the volume has been changed
+ *
+ * @event Player#volumechange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechVolumechange_
+ * @fires Player#volumechange
+ * @listens Tech#volumechange
+ */
+ 'volumechange',
+
+ /**
+ * Fires when the text track has been changed
+ *
+ * @event Player#texttrackchange
+ * @type {event}
+ */
+ /**
+ * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+ *
+ * @private
+ * @method Player#handleTechTexttrackchange_
+ * @fires Player#texttrackchange
+ * @listens Tech#texttrackchange
+ */
+ 'texttrackchange'];
+
+ // events to queue when playback rate is zero
+ // this is a hash for the sole purpose of mapping non-camel-cased event names
+ // to camel-cased function names
+ var TECH_EVENTS_QUEUE = {
+ canplay: 'CanPlay',
+ canplaythrough: 'CanPlayThrough',
+ playing: 'Playing',
+ seeked: 'Seeked'
+ };
+
+ /**
+ * An instance of the `Player` class is created when any of the Video.js setup methods
+ * are used to initialize a video.
+ *
+ * After an instance has been created it can be accessed globally in two ways:
+ * 1. By calling `videojs('example_video_1');`
+ * 2. By using it directly via `videojs.players.example_video_1;`
+ *
+ * @extends Component
+ */
+
+ var Player = function (_Component) {
+ inherits(Player, _Component);
+
+ /**
+ * Create an instance of this class.
+ *
+ * @param {Element} tag
+ * The original video DOM element used for configuring options.
+ *
+ * @param {Object} [options]
+ * Object of option names and values.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Ready callback function.
+ */
+ function Player(tag, options, ready) {
+ classCallCheck(this, Player);
+
+ // Make sure tag ID exists
+ tag.id = tag.id || options.id || 'vjs_video_' + newGUID();
+
+ // Set Options
+ // The options argument overrides options set in the video tag
+ // which overrides globally set options.
+ // This latter part coincides with the load order
+ // (tag must exist before Player)
+ options = assign(Player.getTagSettings(tag), options);
+
+ // Delay the initialization of children because we need to set up
+ // player properties first, and can't use `this` before `super()`
+ options.initChildren = false;
+
+ // Same with creating the element
+ options.createEl = false;
+
+ // don't auto mixin the evented mixin
+ options.evented = false;
+
+ // we don't want the player to report touch activity on itself
+ // see enableTouchActivity in Component
+ options.reportTouchActivity = false;
+
+ // If language is not set, get the closest lang attribute
+ if (!options.language) {
+ if (typeof tag.closest === 'function') {
+ var closest = tag.closest('[lang]');
+
+ if (closest && closest.getAttribute) {
+ options.language = closest.getAttribute('lang');
+ }
+ } else {
+ var element = tag;
+
+ while (element && element.nodeType === 1) {
+ if (getAttributes(element).hasOwnProperty('lang')) {
+ options.language = element.getAttribute('lang');
+ break;
+ }
+ element = element.parentNode;
+ }
+ }
+ }
+
+ // Run base component initializing with new options
+
+ // Tracks when a tech changes the poster
+ var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));
+
+ _this.isPosterFromTech_ = false;
+
+ // Holds callback info that gets queued when playback rate is zero
+ // and a seek is happening
+ _this.queuedCallbacks_ = [];
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ _this.isReady_ = false;
+
+ // Init state hasStarted_
+ _this.hasStarted_ = false;
+
+ // Init state userActive_
+ _this.userActive_ = false;
+
+ // if the global option object was accidentally blown away by
+ // someone, bail early with an informative error
+ if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
+ throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+ }
+
+ // Store the original tag used to set options
+ _this.tag = tag;
+
+ // Store the tag attributes used to restore html5 element
+ _this.tagAttributes = tag && getAttributes(tag);
+
+ // Update current language
+ _this.language(_this.options_.language);
+
+ // Update Supported Languages
+ if (options.languages) {
+ // Normalise player option languages to lowercase
+ var languagesToLower = {};
+
+ Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {
+ languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];
+ });
+ _this.languages_ = languagesToLower;
+ } else {
+ _this.languages_ = Player.prototype.options_.languages;
+ }
+
+ // Cache for video property values.
+ _this.cache_ = {};
+
+ // Set poster
+ _this.poster_ = options.poster || '';
+
+ // Set controls
+ _this.controls_ = !!options.controls;
+
+ // Set default values for lastVolume
+ _this.cache_.lastVolume = 1;
+
+ // Original tag settings stored in options
+ // now remove immediately so native controls don't flash.
+ // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+ tag.controls = false;
+ tag.removeAttribute('controls');
+
+ // the attribute overrides the option
+ if (tag.hasAttribute('autoplay')) {
+ _this.options_.autoplay = true;
+ } else {
+ // otherwise use the setter to validate and
+ // set the correct value.
+ _this.autoplay(_this.options_.autoplay);
+ }
+
+ /*
+ * Store the internal state of scrubbing
+ *
+ * @private
+ * @return {Boolean} True if the user is scrubbing
+ */
+ _this.scrubbing_ = false;
+
+ _this.el_ = _this.createEl();
+
+ // Set default value for lastPlaybackRate
+ _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();
+
+ // Make this an evented object and use `el_` as its event bus.
+ evented(_this, { eventBusKey: 'el_' });
+
+ // We also want to pass the original player options to each component and plugin
+ // as well so they don't need to reach back into the player for options later.
+ // We also need to do another copy of this.options_ so we don't end up with
+ // an infinite loop.
+ var playerOptionsCopy = mergeOptions(_this.options_);
+
+ // Load plugins
+ if (options.plugins) {
+ var plugins = options.plugins;
+
+ Object.keys(plugins).forEach(function (name$$1) {
+ if (typeof this[name$$1] === 'function') {
+ this[name$$1](plugins[name$$1]);
+ } else {
+ throw new Error('plugin "' + name$$1 + '" does not exist');
+ }
+ }, _this);
+ }
+
+ _this.options_.playerOptions = playerOptionsCopy;
+
+ _this.middleware_ = [];
+
+ _this.initChildren();
+
+ // Set isAudio based on whether or not an audio tag was used
+ _this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+ // Update controls className. Can't do this when the controls are initially
+ // set because the element doesn't exist yet.
+ if (_this.controls()) {
+ _this.addClass('vjs-controls-enabled');
+ } else {
+ _this.addClass('vjs-controls-disabled');
+ }
+
+ // Set ARIA label and region role depending on player type
+ _this.el_.setAttribute('role', 'region');
+ if (_this.isAudio()) {
+ _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
+ } else {
+ _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
+ }
+
+ if (_this.isAudio()) {
+ _this.addClass('vjs-audio');
+ }
+
+ if (_this.flexNotSupported_()) {
+ _this.addClass('vjs-no-flex');
+ }
+
+ // TODO: Make this smarter. Toggle user state between touching/mousing
+ // using events, since devices can have both touch and mouse events.
+ // if (browser.TOUCH_ENABLED) {
+ // this.addClass('vjs-touch-enabled');
+ // }
+
+ // iOS Safari has broken hover handling
+ if (!IS_IOS) {
+ _this.addClass('vjs-workinghover');
+ }
+
+ // Make player easily findable by ID
+ Player.players[_this.id_] = _this;
+
+ // Add a major version class to aid css in plugins
+ var majorVersion = version.split('.')[0];
+
+ _this.addClass('vjs-v' + majorVersion);
+
+ // When the player is first initialized, trigger activity so components
+ // like the control bar show themselves if needed
+ _this.userActive(true);
+ _this.reportUserActivity();
+
+ _this.one('play', _this.listenForUserActivity_);
+ _this.on('fullscreenchange', _this.handleFullscreenChange_);
+ _this.on('stageclick', _this.handleStageClick_);
+
+ _this.changingSrc_ = false;
+ _this.playWaitingForReady_ = false;
+ _this.playOnLoadstart_ = null;
+ return _this;
+ }
+
+ /**
+ * Destroys the video player and does any necessary cleanup.
+ *
+ * This is especially helpful if you are dynamically adding and removing videos
+ * to/from the DOM.
+ *
+ * @fires Player#dispose
+ */
+
+
+ Player.prototype.dispose = function dispose() {
+ /**
+ * Called when the player is being disposed of.
+ *
+ * @event Player#dispose
+ * @type {EventTarget~Event}
+ */
+ this.trigger('dispose');
+ // prevent dispose from being called twice
+ this.off('dispose');
+
+ if (this.styleEl_ && this.styleEl_.parentNode) {
+ this.styleEl_.parentNode.removeChild(this.styleEl_);
+ this.styleEl_ = null;
+ }
+
+ // Kill reference to this player
+ Player.players[this.id_] = null;
+
+ if (this.tag && this.tag.player) {
+ this.tag.player = null;
+ }
+
+ if (this.el_ && this.el_.player) {
+ this.el_.player = null;
+ }
+
+ if (this.tech_) {
+ this.tech_.dispose();
+ this.isPosterFromTech_ = false;
+ this.poster_ = '';
+ }
+
+ if (this.playerElIngest_) {
+ this.playerElIngest_ = null;
+ }
+
+ if (this.tag) {
+ this.tag = null;
+ }
+
+ clearCacheForPlayer(this);
+
+ // the actual .el_ is removed here
+ _Component.prototype.dispose.call(this);
+ };
+
+ /**
+ * Create the `Player`'s DOM element.
+ *
+ * @return {Element}
+ * The DOM element that gets created.
+ */
+
+
+ Player.prototype.createEl = function createEl$$1() {
+ var tag = this.tag;
+ var el = void 0;
+ var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+ var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+
+ if (playerElIngest) {
+ el = this.el_ = tag.parentNode;
+ } else if (!divEmbed) {
+ el = this.el_ = _Component.prototype.createEl.call(this, 'div');
+ }
+
+ // Copy over all the attributes from the tag, including ID and class
+ // ID will now reference player box, not the video tag
+ var attrs = getAttributes(tag);
+
+ if (divEmbed) {
+ el = this.el_ = tag;
+ tag = this.tag = document_1.createElement('video');
+ while (el.children.length) {
+ tag.appendChild(el.firstChild);
+ }
+
+ if (!hasClass(el, 'video-js')) {
+ addClass(el, 'video-js');
+ }
+
+ el.appendChild(tag);
+
+ playerElIngest = this.playerElIngest_ = el;
+ // move properties over from our custom `video-js` element
+ // to our new `video` element. This will move things like
+ // `src` or `controls` that were set via js before the player
+ // was initialized.
+ Object.keys(el).forEach(function (k) {
+ tag[k] = el[k];
+ });
+ }
+
+ // set tabindex to -1 to remove the video element from the focus order
+ tag.setAttribute('tabindex', '-1');
+ attrs.tabindex = '-1';
+
+ // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)
+ // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+ // Note that we can't detect if JAWS is being used, but this ARIA attribute
+ // doesn't change behavior of IE11 if JAWS is not being used
+ if (IE_VERSION) {
+ tag.setAttribute('role', 'application');
+ attrs.role = 'application';
+ }
+
+ // Remove width/height attrs from tag so CSS can make it 100% width/height
+ tag.removeAttribute('width');
+ tag.removeAttribute('height');
+
+ if ('width' in attrs) {
+ delete attrs.width;
+ }
+ if ('height' in attrs) {
+ delete attrs.height;
+ }
+
+ Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+ // don't copy over the class attribute to the player element when we're in a div embed
+ // the class is already set up properly in the divEmbed case
+ // and we want to make sure that the `video-js` class doesn't get lost
+ if (!(divEmbed && attr === 'class')) {
+ el.setAttribute(attr, attrs[attr]);
+ }
+
+ if (divEmbed) {
+ tag.setAttribute(attr, attrs[attr]);
+ }
+ });
+
+ // Update tag id/class for use as HTML5 playback tech
+ // Might think we should do this after embedding in container so .vjs-tech class
+ // doesn't flash 100% width/height, but class only applies with .video-js parent
+ tag.playerId = tag.id;
+ tag.id += '_html5_api';
+ tag.className = 'vjs-tech';
+
+ // Make player findable on elements
+ tag.player = el.player = this;
+ // Default state of video is paused
+ this.addClass('vjs-paused');
+
+ // Add a style element in the player that we'll use to set the width/height
+ // of the player in a way that's still overrideable by CSS, just like the
+ // video element
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+ this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+ var defaultsStyleEl = $('.vjs-styles-defaults');
+ var head = $('head');
+
+ head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+ }
+
+ // Pass in the width/height/aspectRatio options which will update the style el
+ this.width(this.options_.width);
+ this.height(this.options_.height);
+ this.fluid(this.options_.fluid);
+ this.aspectRatio(this.options_.aspectRatio);
+
+ // Hide any links within the video/audio tag,
+ // because IE doesn't hide them completely from screen readers.
+ var links = tag.getElementsByTagName('a');
+
+ for (var i = 0; i < links.length; i++) {
+ var linkEl = links.item(i);
+
+ addClass(linkEl, 'vjs-hidden');
+ linkEl.setAttribute('hidden', 'hidden');
+ }
+
+ // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+ // keep track of the original for later so we can know if the source originally failed
+ tag.initNetworkState_ = tag.networkState;
+
+ // Wrap video tag in div (el/box) container
+ if (tag.parentNode && !playerElIngest) {
+ tag.parentNode.insertBefore(el, tag);
+ }
+
+ // insert the tag as the first child of the player element
+ // then manually add it to the children array so that this.addChild
+ // will work properly for other components
+ //
+ // Breaks iPhone, fixed in HTML5 setup.
+ prependTo(tag, el);
+ this.children_.unshift(tag);
+
+ // Set lang attr on player to ensure CSS :lang() in consistent with player
+ // if it's been set to something different to the doc
+ this.el_.setAttribute('lang', this.language_);
+
+ this.el_ = el;
+
+ return el;
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width. Returns the player's configured value.
+ * To get the current width use `currentWidth()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s width to.
+ *
+ * @return {number}
+ * The current width of the `Player` when getting.
+ */
+
+
+ Player.prototype.width = function width(value) {
+ return this.dimension('width', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s height. Returns the player's configured value.
+ * To get the current height use `currentheight()`.
+ *
+ * @param {number} [value]
+ * The value to set the `Player`'s heigth to.
+ *
+ * @return {number}
+ * The current height of the `Player` when getting.
+ */
+
+
+ Player.prototype.height = function height(value) {
+ return this.dimension('height', value);
+ };
+
+ /**
+ * A getter/setter for the `Player`'s width & height.
+ *
+ * @param {string} dimension
+ * This string can be:
+ * - 'width'
+ * - 'height'
+ *
+ * @param {number} [value]
+ * Value for dimension specified in the first argument.
+ *
+ * @return {number}
+ * The dimension arguments value when getting (width/height).
+ */
+
+
+ Player.prototype.dimension = function dimension(_dimension, value) {
+ var privDimension = _dimension + '_';
+
+ if (value === undefined) {
+ return this[privDimension] || 0;
+ }
+
+ if (value === '') {
+ // If an empty string is given, reset the dimension to be automatic
+ this[privDimension] = undefined;
+ this.updateStyleEl_();
+ return;
+ }
+
+ var parsedVal = parseFloat(value);
+
+ if (isNaN(parsedVal)) {
+ log$1.error('Improper value "' + value + '" supplied for for ' + _dimension);
+ return;
+ }
+
+ this[privDimension] = parsedVal;
+ this.updateStyleEl_();
+ };
+
+ /**
+ * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+ *
+ * @param {boolean} [bool]
+ * - A value of true adds the class.
+ * - A value of false removes the class.
+ * - No value will toggle the fluid class.
+ *
+ * @return {boolean|undefined}
+ * - The value of fluid when getting.
+ * - `undefined` when setting.
+ */
+
+
+ Player.prototype.fluid = function fluid(bool) {
+ if (bool === undefined) {
+ return !!this.fluid_;
+ }
+
+ this.fluid_ = !!bool;
+
+ if (bool) {
+ this.addClass('vjs-fluid');
+ } else {
+ this.removeClass('vjs-fluid');
+ }
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Get/Set the aspect ratio
+ *
+ * @param {string} [ratio]
+ * Aspect ratio for player
+ *
+ * @return {string|undefined}
+ * returns the current aspect ratio when getting
+ */
+
+ /**
+ * A getter/setter for the `Player`'s aspect ratio.
+ *
+ * @param {string} [ratio]
+ * The value to set the `Player's aspect ratio to.
+ *
+ * @return {string|undefined}
+ * - The current aspect ratio of the `Player` when getting.
+ * - undefined when setting
+ */
+
+
+ Player.prototype.aspectRatio = function aspectRatio(ratio) {
+ if (ratio === undefined) {
+ return this.aspectRatio_;
+ }
+
+ // Check for width:height format
+ if (!/^\d+\:\d+$/.test(ratio)) {
+ throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+ }
+ this.aspectRatio_ = ratio;
+
+ // We're assuming if you set an aspect ratio you want fluid mode,
+ // because in fixed mode you could calculate width and height yourself.
+ this.fluid(true);
+
+ this.updateStyleEl_();
+ };
+
+ /**
+ * Update styles of the `Player` element (height, width and aspect ratio).
+ *
+ * @private
+ * @listens Tech#loadedmetadata
+ */
+
+
+ Player.prototype.updateStyleEl_ = function updateStyleEl_() {
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+ var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+ var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+ var techEl = this.tech_ && this.tech_.el();
+
+ if (techEl) {
+ if (_width >= 0) {
+ techEl.width = _width;
+ }
+ if (_height >= 0) {
+ techEl.height = _height;
+ }
+ }
+
+ return;
+ }
+
+ var width = void 0;
+ var height = void 0;
+ var aspectRatio = void 0;
+ var idClass = void 0;
+
+ // The aspect ratio is either used directly or to calculate width and height.
+ if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+ // Use any aspectRatio that's been specifically set
+ aspectRatio = this.aspectRatio_;
+ } else if (this.videoWidth() > 0) {
+ // Otherwise try to get the aspect ratio from the video metadata
+ aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+ } else {
+ // Or use a default. The video element's is 2:1, but 16:9 is more common.
+ aspectRatio = '16:9';
+ }
+
+ // Get the ratio as a decimal we can use to calculate dimensions
+ var ratioParts = aspectRatio.split(':');
+ var ratioMultiplier = ratioParts[1] / ratioParts[0];
+
+ if (this.width_ !== undefined) {
+ // Use any width that's been specifically set
+ width = this.width_;
+ } else if (this.height_ !== undefined) {
+ // Or calulate the width from the aspect ratio if a height has been set
+ width = this.height_ / ratioMultiplier;
+ } else {
+ // Or use the video's metadata, or use the video el's default of 300
+ width = this.videoWidth() || 300;
+ }
+
+ if (this.height_ !== undefined) {
+ // Use any height that's been specifically set
+ height = this.height_;
+ } else {
+ // Otherwise calculate the height from the ratio and the width
+ height = width * ratioMultiplier;
+ }
+
+ // Ensure the CSS class is valid by starting with an alpha character
+ if (/^[^a-zA-Z]/.test(this.id())) {
+ idClass = 'dimensions-' + this.id();
+ } else {
+ idClass = this.id() + '-dimensions';
+ }
+
+ // Ensure the right class is still on the player for the style element
+ this.addClass(idClass);
+
+ setTextContent(this.styleEl_, '\n .' + idClass + ' {\n width: ' + width + 'px;\n height: ' + height + 'px;\n }\n\n .' + idClass + '.vjs-fluid {\n padding-top: ' + ratioMultiplier * 100 + '%;\n }\n ');
+ };
+
+ /**
+ * Load/Create an instance of playback {@link Tech} including element
+ * and API methods. Then append the `Tech` element in `Player` as a child.
+ *
+ * @param {string} techName
+ * name of the playback technology
+ *
+ * @param {string} source
+ * video source
+ *
+ * @private
+ */
+
+
+ Player.prototype.loadTech_ = function loadTech_(techName, source) {
+ var _this2 = this;
+
+ // Pause and remove current playback technology
+ if (this.tech_) {
+ this.unloadTech_();
+ }
+
+ var titleTechName = toTitleCase(techName);
+ var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+ // get rid of the HTML5 video tag as soon as we are using another tech
+ if (titleTechName !== 'Html5' && this.tag) {
+ Tech.getTech('Html5').disposeMediaElement(this.tag);
+ this.tag.player = null;
+ this.tag = null;
+ }
+
+ this.techName_ = titleTechName;
+
+ // Turn off API access because we're loading a new tech that might load asynchronously
+ this.isReady_ = false;
+
+ // if autoplay is a string we pass false to the tech
+ // because the player is going to handle autoplay on `loadstart`
+ var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();
+
+ // Grab tech-specific options from player options and add source and parent element to use.
+ var techOptions = {
+ source: source,
+ autoplay: autoplay,
+ 'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+ 'playerId': this.id(),
+ 'techId': this.id() + '_' + camelTechName + '_api',
+ 'playsinline': this.options_.playsinline,
+ 'preload': this.options_.preload,
+ 'loop': this.options_.loop,
+ 'muted': this.options_.muted,
+ 'poster': this.poster(),
+ 'language': this.language(),
+ 'playerElIngest': this.playerElIngest_ || false,
+ 'vtt.js': this.options_['vtt.js'],
+ 'canOverridePoster': !!this.options_.techCanOverridePoster,
+ 'enableSourceset': this.options_.enableSourceset
+ };
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ techOptions[props.getterName] = _this2[props.privateName];
+ });
+
+ assign(techOptions, this.options_[titleTechName]);
+ assign(techOptions, this.options_[camelTechName]);
+ assign(techOptions, this.options_[techName.toLowerCase()]);
+
+ if (this.tag) {
+ techOptions.tag = this.tag;
+ }
+
+ if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+ techOptions.startTime = this.cache_.currentTime;
+ }
+
+ // Initialize tech instance
+ var TechClass = Tech.getTech(techName);
+
+ if (!TechClass) {
+ throw new Error('No Tech named \'' + titleTechName + '\' exists! \'' + titleTechName + '\' should be registered using videojs.registerTech()\'');
+ }
+
+ this.tech_ = new TechClass(techOptions);
+
+ // player.triggerReady is always async, so don't need this to be async
+ this.tech_.ready(bind(this, this.handleTechReady_), true);
+
+ textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+ // Listen to all HTML5-defined events and trigger them on the player
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);
+ });
+
+ Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
+ _this2.on(_this2.tech_, event, function (eventObj) {
+ if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {
+ _this2.queuedCallbacks_.push({
+ callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),
+ event: eventObj
+ });
+ return;
+ }
+ _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);
+ });
+ });
+
+ this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);
+ this.on(this.tech_, 'sourceset', this.handleTechSourceset_);
+ this.on(this.tech_, 'waiting', this.handleTechWaiting_);
+ this.on(this.tech_, 'ended', this.handleTechEnded_);
+ this.on(this.tech_, 'seeking', this.handleTechSeeking_);
+ this.on(this.tech_, 'play', this.handleTechPlay_);
+ this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);
+ this.on(this.tech_, 'pause', this.handleTechPause_);
+ this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);
+ this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);
+ this.on(this.tech_, 'error', this.handleTechError_);
+ this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);
+ this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);
+ this.on(this.tech_, 'textdata', this.handleTechTextData_);
+ this.on(this.tech_, 'ratechange', this.handleTechRateChange_);
+
+ this.usingNativeControls(this.techGet_('controls'));
+
+ if (this.controls() && !this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+
+ // Add the tech element in the DOM if it was not already there
+ // Make sure to not insert the original video element if using Html5
+ if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+ prependTo(this.tech_.el(), this.el());
+ }
+
+ // Get rid of the original video tag reference after the first tech is loaded
+ if (this.tag) {
+ this.tag.player = null;
+ this.tag = null;
+ }
+ };
+
+ /**
+ * Unload and dispose of the current playback {@link Tech}.
+ *
+ * @private
+ */
+
+
+ Player.prototype.unloadTech_ = function unloadTech_() {
+ var _this3 = this;
+
+ // Save the current text tracks so that we can reuse the same text tracks with the next tech
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ _this3[props.privateName] = _this3[props.getterName]();
+ });
+ this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+
+ this.isReady_ = false;
+
+ this.tech_.dispose();
+
+ this.tech_ = false;
+
+ if (this.isPosterFromTech_) {
+ this.poster_ = '';
+ this.trigger('posterchange');
+ }
+
+ this.isPosterFromTech_ = false;
+ };
+
+ /**
+ * Return a reference to the current {@link Tech}.
+ * It will print a warning by default about the danger of using the tech directly
+ * but any argument that is passed in will silence the warning.
+ *
+ * @param {*} [safety]
+ * Anything passed in to silence the warning
+ *
+ * @return {Tech}
+ * The Tech
+ */
+
+
+ Player.prototype.tech = function tech(safety) {
+ if (safety === undefined) {
+ log$1.warn(tsml(_templateObject$2));
+ }
+
+ return this.tech_;
+ };
+
+ /**
+ * Set up click and touch listeners for the playback element
+ *
+ * - On desktops: a click on the video itself will toggle playback
+ * - On mobile devices: a click on the video toggles controls
+ * which is done by toggling the user state between active and
+ * inactive
+ * - A tap can signal that a user has become active or has become inactive
+ * e.g. a quick tap on an iPhone movie should reveal the controls. Another
+ * quick tap should hide them again (signaling the user is in an inactive
+ * viewing state)
+ * - In addition to this, we still want the user to be considered inactive after
+ * a few seconds of inactivity.
+ *
+ * > Note: the only part of iOS interaction we can't mimic with this setup
+ * is a touch and hold on the video element counting as activity in order to
+ * keep the controls showing, but that shouldn't be an issue. A touch and hold
+ * on any controls will still keep the user active
+ *
+ * @private
+ */
+
+
+ Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {
+ // Make sure to remove all the previous listeners in case we are called multiple times.
+ this.removeTechControlsListeners_();
+
+ // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do
+ // trigger mousedown/up.
+ // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object
+ // Any touch events are set to block the mousedown event from happening
+ this.on(this.tech_, 'mousedown', this.handleTechClick_);
+ this.on(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+
+ // If the controls were hidden we don't want that to change without a tap event
+ // so we'll check if the controls were already showing before reporting user
+ // activity
+ this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);
+
+ // The tap listener needs to come after the touchend listener because the tap
+ // listener cancels out any reportedUserActivity when setting userActive(false)
+ this.on(this.tech_, 'tap', this.handleTechTap_);
+ };
+
+ /**
+ * Remove the listeners used for click and tap controls. This is needed for
+ * toggling to controls disabled, where a tap/touch should do nothing.
+ *
+ * @private
+ */
+
+
+ Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {
+ // We don't want to just use `this.off()` because there might be other needed
+ // listeners added by techs that extend this.
+ this.off(this.tech_, 'tap', this.handleTechTap_);
+ this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);
+ this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);
+ this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);
+ this.off(this.tech_, 'mousedown', this.handleTechClick_);
+ this.off(this.tech_, 'dblclick', this.handleTechDoubleClick_);
+ };
+
+ /**
+ * Player waits for the tech to be ready
+ *
+ * @private
+ */
+
+
+ Player.prototype.handleTechReady_ = function handleTechReady_() {
+ this.triggerReady();
+
+ // Keep the same volume as before
+ if (this.cache_.volume) {
+ this.techCall_('setVolume', this.cache_.volume);
+ }
+
+ // Look if the tech found a higher resolution poster while loading
+ this.handleTechPosterChange_();
+
+ // Update the duration if available
+ this.handleTechDurationChange_();
+ };
+
+ /**
+ * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
+ * function will also trigger {@link Player#firstplay} if it is the first loadstart
+ * for a video.
+ *
+ * @fires Player#loadstart
+ * @fires Player#firstplay
+ * @listens Tech#loadstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {
+ // TODO: Update to use `emptied` event instead. See #1277.
+
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-seeking');
+
+ // reset the error state
+ this.error(null);
+
+ // If it's already playing we want to trigger a firstplay event now.
+ // The firstplay event relies on both the play and loadstart events
+ // which can happen in any order for a new source
+ if (!this.paused()) {
+ /**
+ * Fired when the user agent begins looking for media data
+ *
+ * @event Player#loadstart
+ * @type {EventTarget~Event}
+ */
+ this.trigger('loadstart');
+ this.trigger('firstplay');
+ } else {
+ // reset the hasStarted state
+ this.hasStarted(false);
+ this.trigger('loadstart');
+ }
+
+ // autoplay happens after loadstart for the browser,
+ // so we mimic that behavior
+ this.manualAutoplay_(this.autoplay());
+ };
+
+ /**
+ * Handle autoplay string values, rather than the typical boolean
+ * values that should be handled by the tech. Note that this is not
+ * part of any specification. Valid values and what they do can be
+ * found on the autoplay getter at Player#autoplay()
+ */
+
+
+ Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {
+ var _this4 = this;
+
+ if (!this.tech_ || typeof type !== 'string') {
+ return;
+ }
+
+ var muted = function muted() {
+ var previouslyMuted = _this4.muted();
+
+ _this4.muted(true);
+
+ var playPromise = _this4.play();
+
+ if (!playPromise || !playPromise.then || !playPromise.catch) {
+ return;
+ }
+
+ return playPromise.catch(function (e) {
+ // restore old value of muted on failure
+ _this4.muted(previouslyMuted);
+ });
+ };
+
+ var promise = void 0;
+
+ if (type === 'any') {
+ promise = this.play();
+
+ if (promise && promise.then && promise.catch) {
+ promise.catch(function () {
+ return muted();
+ });
+ }
+ } else if (type === 'muted') {
+ promise = muted();
+ } else {
+ promise = this.play();
+ }
+
+ if (!promise || !promise.then || !promise.catch) {
+ return;
+ }
+
+ return promise.then(function () {
+ _this4.trigger({ type: 'autoplay-success', autoplay: type });
+ }).catch(function (e) {
+ _this4.trigger({ type: 'autoplay-failure', autoplay: type });
+ });
+ };
+
+ /**
+ * Update the internal source caches so that we return the correct source from
+ * `src()`, `currentSource()`, and `currentSources()`.
+ *
+ * > Note: `currentSources` will not be updated if the source that is passed in exists
+ * in the current `currentSources` cache.
+ *
+ *
+ * @param {Tech~SourceObject} srcObj
+ * A string or object source to update our caches to.
+ */
+
+
+ Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {
+ var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+
+ var src = srcObj;
+ var type = '';
+
+ if (typeof src !== 'string') {
+ src = srcObj.src;
+ type = srcObj.type;
+ }
+
+ // if we are a blob url, don't update the source cache
+ // blob urls can arise when playback is done via Media Source Extension (MSE)
+ // such as m3u8 sources with @videojs/http-streaming (VHS)
+ if (/^blob:/.test(src)) {
+ return;
+ }
+
+ // make sure all the caches are set to default values
+ // to prevent null checking
+ this.cache_.source = this.cache_.source || {};
+ this.cache_.sources = this.cache_.sources || [];
+
+ // try to get the type of the src that was passed in
+ if (src && !type) {
+ type = findMimetype(this, src);
+ }
+
+ // update `currentSource` cache always
+ this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });
+
+ var matchingSources = this.cache_.sources.filter(function (s) {
+ return s.src && s.src === src;
+ });
+ var sourceElSources = [];
+ var sourceEls = this.$$('source');
+ var matchingSourceEls = [];
+
+ for (var i = 0; i < sourceEls.length; i++) {
+ var sourceObj = getAttributes(sourceEls[i]);
+
+ sourceElSources.push(sourceObj);
+
+ if (sourceObj.src && sourceObj.src === src) {
+ matchingSourceEls.push(sourceObj.src);
+ }
+ }
+
+ // if we have matching source els but not matching sources
+ // the current source cache is not up to date
+ if (matchingSourceEls.length && !matchingSources.length) {
+ this.cache_.sources = sourceElSources;
+ // if we don't have matching source or source els set the
+ // sources cache to the `currentSource` cache
+ } else if (!matchingSources.length) {
+ this.cache_.sources = [this.cache_.source];
+ }
+
+ // update the tech `src` cache
+ this.cache_.src = src;
+ };
+
+ /**
+ * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+ * causing the media element to reload.
+ *
+ * It will fire for the initial source and each subsequent source.
+ * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+ *
+ * The event object for this event contains a `src` property that will contain the source
+ * that was available when the event was triggered. This is generally only necessary if Video.js
+ * is switching techs while the source was being changed.
+ *
+ * It is also fired when `load` is called on the player (or media element)
+ * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+ * says that the resource selection algorithm needs to be aborted and restarted.
+ * In this case, it is very likely that the `src` property will be set to the
+ * empty string `""` to indicate we do not know what the source will be but
+ * that it is changing.
+ *
+ * *This event is currently still experimental and may change in minor releases.*
+ * __To use this, pass `enableSourceset` option to the player.__
+ *
+ * @event Player#sourceset
+ * @type {EventTarget~Event}
+ * @prop {string} src
+ * The source url available when the `sourceset` was triggered.
+ * It will be an empty string if we cannot know what the source is
+ * but know that the source will change.
+ */
+ /**
+ * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#sourceset
+ * @listens Tech#sourceset
+ * @private
+ */
+
+
+ Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {
+ var _this5 = this;
+
+ // only update the source cache when the source
+ // was not updated using the player api
+ if (!this.changingSrc_) {
+ // update the source to the intial source right away
+ // in some cases this will be empty string
+ this.updateSourceCaches_(event.src);
+
+ // if the `sourceset` `src` was an empty string
+ // wait for a `loadstart` to update the cache to `currentSrc`.
+ // If a sourceset happens before a `loadstart`, we reset the state
+ // as this function will be called again.
+ if (!event.src) {
+ var updateCache = function updateCache(e) {
+ if (e.type !== 'sourceset') {
+ _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));
+ }
+
+ _this5.tech_.off(['sourceset', 'loadstart'], updateCache);
+ };
+
+ this.tech_.one(['sourceset', 'loadstart'], updateCache);
+ }
+ }
+
+ this.trigger({
+ src: event.src,
+ type: 'sourceset'
+ });
+ };
+
+ /**
+ * Add/remove the vjs-has-started class
+ *
+ * @fires Player#firstplay
+ *
+ * @param {boolean} request
+ * - true: adds the class
+ * - false: remove the class
+ *
+ * @return {boolean}
+ * the boolean value of hasStarted_
+ */
+
+
+ Player.prototype.hasStarted = function hasStarted(request) {
+ if (request === undefined) {
+ // act as getter, if we have no request to change
+ return this.hasStarted_;
+ }
+
+ if (request === this.hasStarted_) {
+ return;
+ }
+
+ this.hasStarted_ = request;
+
+ if (this.hasStarted_) {
+ this.addClass('vjs-has-started');
+ this.trigger('firstplay');
+ } else {
+ this.removeClass('vjs-has-started');
+ }
+ };
+
+ /**
+ * Fired whenever the media begins or resumes playback
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+ * @fires Player#play
+ * @listens Tech#play
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlay_ = function handleTechPlay_() {
+ this.removeClass('vjs-ended');
+ this.removeClass('vjs-paused');
+ this.addClass('vjs-playing');
+
+ // hide the poster when the user hits play
+ this.hasStarted(true);
+ /**
+ * Triggered whenever an {@link Tech#play} event happens. Indicates that
+ * playback has started or resumed.
+ *
+ * @event Player#play
+ * @type {EventTarget~Event}
+ */
+ this.trigger('play');
+ };
+
+ /**
+ * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+ *
+ * If there were any events queued while the playback rate was zero, fire
+ * those events now.
+ *
+ * @private
+ * @method Player#handleTechRateChange_
+ * @fires Player#ratechange
+ * @listens Tech#ratechange
+ */
+
+
+ Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {
+ if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+ this.queuedCallbacks_.forEach(function (queued) {
+ return queued.callback(queued.event);
+ });
+ this.queuedCallbacks_ = [];
+ }
+ this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+ /**
+ * Fires when the playing speed of the audio/video is changed
+ *
+ * @event Player#ratechange
+ * @type {event}
+ */
+ this.trigger('ratechange');
+ };
+
+ /**
+ * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#waiting
+ * @listens Tech#waiting
+ * @private
+ */
+
+
+ Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {
+ var _this6 = this;
+
+ this.addClass('vjs-waiting');
+ /**
+ * A readyState change on the DOM element has caused playback to stop.
+ *
+ * @event Player#waiting
+ * @type {EventTarget~Event}
+ */
+ this.trigger('waiting');
+ this.one('timeupdate', function () {
+ return _this6.removeClass('vjs-waiting');
+ });
+ };
+
+ /**
+ * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+ * > Note: This is not consistent between browsers. See #1351
+ *
+ * @fires Player#canplay
+ * @listens Tech#canplay
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_FUTURE_DATA or greater.
+ *
+ * @event Player#canplay
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplay');
+ };
+
+ /**
+ * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#canplaythrough
+ * @listens Tech#canplaythrough
+ * @private
+ */
+
+
+ Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+ * entire media file can be played without buffering.
+ *
+ * @event Player#canplaythrough
+ * @type {EventTarget~Event}
+ */
+ this.trigger('canplaythrough');
+ };
+
+ /**
+ * Retrigger the `playing` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#playing
+ * @listens Tech#playing
+ * @private
+ */
+
+
+ Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {
+ this.removeClass('vjs-waiting');
+ /**
+ * The media is no longer blocked from playback, and has started playing.
+ *
+ * @event Player#playing
+ * @type {EventTarget~Event}
+ */
+ this.trigger('playing');
+ };
+
+ /**
+ * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeking
+ * @listens Tech#seeking
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {
+ this.addClass('vjs-seeking');
+ /**
+ * Fired whenever the player is jumping to a new time
+ *
+ * @event Player#seeking
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeking');
+ };
+
+ /**
+ * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#seeked
+ * @listens Tech#seeked
+ * @private
+ */
+
+
+ Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {
+ this.removeClass('vjs-seeking');
+ /**
+ * Fired when the player has finished jumping to a new time
+ *
+ * @event Player#seeked
+ * @type {EventTarget~Event}
+ */
+ this.trigger('seeked');
+ };
+
+ /**
+ * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#firstplay
+ * @listens Tech#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
+ * @private
+ */
+
+
+ Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {
+ // If the first starttime attribute is specified
+ // then we will start at the given offset in seconds
+ if (this.options_.starttime) {
+ log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
+ this.currentTime(this.options_.starttime);
+ }
+
+ this.addClass('vjs-has-started');
+ /**
+ * Fired the first time a video is played. Not part of the HLS spec, and this is
+ * probably not the best implementation yet, so use sparingly. If you don't have a
+ * reason to prevent playback, use `myPlayer.one('play');` instead.
+ *
+ * @event Player#firstplay
+ * @deprecated As of 6.0 firstplay event is deprecated.
+ * @type {EventTarget~Event}
+ */
+ this.trigger('firstplay');
+ };
+
+ /**
+ * Retrigger the `pause` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#pause
+ * @listens Tech#pause
+ * @private
+ */
+
+
+ Player.prototype.handleTechPause_ = function handleTechPause_() {
+ this.removeClass('vjs-playing');
+ this.addClass('vjs-paused');
+ /**
+ * Fired whenever the media has been paused
+ *
+ * @event Player#pause
+ * @type {EventTarget~Event}
+ */
+ this.trigger('pause');
+ };
+
+ /**
+ * Retrigger the `ended` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#ended
+ * @listens Tech#ended
+ * @private
+ */
+
+
+ Player.prototype.handleTechEnded_ = function handleTechEnded_() {
+ this.addClass('vjs-ended');
+ if (this.options_.loop) {
+ this.currentTime(0);
+ this.play();
+ } else if (!this.paused()) {
+ this.pause();
+ }
+
+ /**
+ * Fired when the end of the media resource is reached (currentTime == duration)
+ *
+ * @event Player#ended
+ * @type {EventTarget~Event}
+ */
+ this.trigger('ended');
+ };
+
+ /**
+ * Fired when the duration of the media resource is first known or changed
+ *
+ * @listens Tech#durationchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {
+ this.duration(this.techGet_('duration'));
+ };
+
+ /**
+ * Handle a click on the media element to play/pause
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#mousedown
+ * @private
+ */
+
+
+ Player.prototype.handleTechClick_ = function handleTechClick_(event) {
+ if (!isSingleLeftClick(event)) {
+ return;
+ }
+
+ // When controls are disabled a click should not toggle playback because
+ // the click is considered a control
+ if (!this.controls_) {
+ return;
+ }
+
+ if (this.paused()) {
+ silencePromise(this.play());
+ } else {
+ this.pause();
+ }
+ };
+
+ /**
+ * Handle a double-click on the media element to enter/exit fullscreen
+ *
+ * @param {EventTarget~Event} event
+ * the event that caused this function to trigger
+ *
+ * @listens Tech#dblclick
+ * @private
+ */
+
+
+ Player.prototype.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
+ if (!this.controls_) {
+ return;
+ }
+
+ // we do not want to toggle fullscreen state
+ // when double-clicking inside a control bar or a modal
+ var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
+ return el.contains(event.target);
+ });
+
+ if (!inAllowedEls) {
+ if (this.isFullscreen()) {
+ this.exitFullscreen();
+ } else {
+ this.requestFullscreen();
+ }
+ }
+ };
+
+ /**
+ * Handle a tap on the media element. It will toggle the user
+ * activity state, which hides and shows the controls.
+ *
+ * @listens Tech#tap
+ * @private
+ */
+
+
+ Player.prototype.handleTechTap_ = function handleTechTap_() {
+ this.userActive(!this.userActive());
+ };
+
+ /**
+ * Handle touch to start
+ *
+ * @listens Tech#touchstart
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {
+ this.userWasActive = this.userActive();
+ };
+
+ /**
+ * Handle touch to move
+ *
+ * @listens Tech#touchmove
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {
+ if (this.userWasActive) {
+ this.reportUserActivity();
+ }
+ };
+
+ /**
+ * Handle touch to end
+ *
+ * @param {EventTarget~Event} event
+ * the touchend event that triggered
+ * this function
+ *
+ * @listens Tech#touchend
+ * @private
+ */
+
+
+ Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
+ // Stop the mouse events from also happening
+ event.preventDefault();
+ };
+
+ /**
+ * Fired when the player switches in or out of fullscreen mode
+ *
+ * @private
+ * @listens Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {
+ if (this.isFullscreen()) {
+ this.addClass('vjs-fullscreen');
+ } else {
+ this.removeClass('vjs-fullscreen');
+ }
+ };
+
+ /**
+ * native click events on the SWF aren't triggered on IE11, Win8.1RT
+ * use stageclick events triggered from inside the SWF instead
+ *
+ * @private
+ * @listens stageclick
+ */
+
+
+ Player.prototype.handleStageClick_ = function handleStageClick_() {
+ this.reportUserActivity();
+ };
+
+ /**
+ * Handle Tech Fullscreen Change
+ *
+ * @param {EventTarget~Event} event
+ * the fullscreenchange event that triggered this function
+ *
+ * @param {Object} data
+ * the data that was sent with the event
+ *
+ * @private
+ * @listens Tech#fullscreenchange
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
+ if (data) {
+ this.isFullscreen(data.isFullscreen);
+ }
+ /**
+ * Fired when going in and out of fullscreen.
+ *
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ };
+
+ /**
+ * Fires when an error occurred during the loading of an audio/video.
+ *
+ * @private
+ * @listens Tech#error
+ */
+
+
+ Player.prototype.handleTechError_ = function handleTechError_() {
+ var error = this.tech_.error();
+
+ this.error(error);
+ };
+
+ /**
+ * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+ *
+ * @fires Player#textdata
+ * @listens Tech#textdata
+ * @private
+ */
+
+
+ Player.prototype.handleTechTextData_ = function handleTechTextData_() {
+ var data = null;
+
+ if (arguments.length > 1) {
+ data = arguments[1];
+ }
+
+ /**
+ * Fires when we get a textdata event from tech
+ *
+ * @event Player#textdata
+ * @type {EventTarget~Event}
+ */
+ this.trigger('textdata', data);
+ };
+
+ /**
+ * Get object for cached values.
+ *
+ * @return {Object}
+ * get the current object cache
+ */
+
+
+ Player.prototype.getCache = function getCache() {
+ return this.cache_;
+ };
+
+ /**
+ * Pass values to the playback tech
+ *
+ * @param {string} [method]
+ * the method to call
+ *
+ * @param {Object} arg
+ * the argument to pass
+ *
+ * @private
+ */
+
+
+ Player.prototype.techCall_ = function techCall_(method, arg) {
+ // If it's not ready yet, call method when it is
+
+ this.ready(function () {
+ if (method in allowedSetters) {
+ return set$1(this.middleware_, this.tech_, method, arg);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method, arg);
+ }
+
+ try {
+ if (this.tech_) {
+ this.tech_[method](arg);
+ }
+ } catch (e) {
+ log$1(e);
+ throw e;
+ }
+ }, true);
+ };
+
+ /**
+ * Get calls can't wait for the tech, and sometimes don't need to.
+ *
+ * @param {string} method
+ * Tech method
+ *
+ * @return {Function|undefined}
+ * the method or undefined
+ *
+ * @private
+ */
+
+
+ Player.prototype.techGet_ = function techGet_(method) {
+ if (!this.tech_ || !this.tech_.isReady_) {
+ return;
+ }
+
+ if (method in allowedGetters) {
+ return get$1(this.middleware_, this.tech_, method);
+ } else if (method in allowedMediators) {
+ return mediate(this.middleware_, this.tech_, method);
+ }
+
+ // Flash likes to die and reload when you hide or reposition it.
+ // In these cases the object methods go away and we get errors.
+ // When that happens we'll catch the errors and inform tech that it's not ready any more.
+ try {
+ return this.tech_[method]();
+ } catch (e) {
+
+ // When building additional tech libs, an expected method may not be defined yet
+ if (this.tech_[method] === undefined) {
+ log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);
+ throw e;
+ }
+
+ // When a method isn't available on the object it throws a TypeError
+ if (e.name === 'TypeError') {
+ log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);
+ this.tech_.isReady_ = false;
+ throw e;
+ }
+
+ // If error unknown, just log and throw
+ log$1(e);
+ throw e;
+ }
+ };
+
+ /**
+ * Attempt to begin playback at the first opportunity.
+ *
+ * @return {Promise|undefined}
+ * Returns a promise if the browser supports Promises (or one
+ * was passed in as an option). This promise will be resolved on
+ * the return value of play. If this is undefined it will fulfill the
+ * promise chain otherwise the promise chain will be fulfilled when
+ * the promise from play is fulfilled.
+ */
+
+
+ Player.prototype.play = function play() {
+ var _this7 = this;
+
+ var PromiseClass = this.options_.Promise || window_1.Promise;
+
+ if (PromiseClass) {
+ return new PromiseClass(function (resolve) {
+ _this7.play_(resolve);
+ });
+ }
+
+ return this.play_();
+ };
+
+ /**
+ * The actual logic for play, takes a callback that will be resolved on the
+ * return value of play. This allows us to resolve to the play promise if there
+ * is one on modern browsers.
+ *
+ * @private
+ * @param {Function} [callback]
+ * The callback that should be called when the techs play is actually called
+ */
+
+
+ Player.prototype.play_ = function play_() {
+ var _this8 = this;
+
+ var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;
+
+ // If this is called while we have a play queued up on a loadstart, remove
+ // that listener to avoid getting in a potentially bad state.
+ if (this.playOnLoadstart_) {
+ this.off('loadstart', this.playOnLoadstart_);
+ }
+
+ // If the player/tech is not ready, queue up another call to `play()` for
+ // when it is. This will loop back into this method for another attempt at
+ // playback when the tech is ready.
+ if (!this.isReady_) {
+
+ // Bail out if we're already waiting for `ready`!
+ if (this.playWaitingForReady_) {
+ return;
+ }
+
+ this.playWaitingForReady_ = true;
+ this.ready(function () {
+ _this8.playWaitingForReady_ = false;
+ callback(_this8.play());
+ });
+
+ // If the player/tech is ready and we have a source, we can attempt playback.
+ } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {
+ callback(this.techGet_('play'));
+ return;
+
+ // If the tech is ready, but we do not have a source, we'll need to wait
+ // for both the `ready` and a `loadstart` when the source is finally
+ // resolved by middleware and set on the player.
+ //
+ // This can happen if `play()` is called while changing sources or before
+ // one has been set on the player.
+ } else {
+
+ this.playOnLoadstart_ = function () {
+ _this8.playOnLoadstart_ = null;
+ callback(_this8.play());
+ };
+
+ this.one('loadstart', this.playOnLoadstart_);
+ }
+ };
+
+ /**
+ * Pause the video playback
+ *
+ * @return {Player}
+ * A reference to the player object this function was called on
+ */
+
+
+ Player.prototype.pause = function pause() {
+ this.techCall_('pause');
+ };
+
+ /**
+ * Check if the player is paused or has yet to play
+ *
+ * @return {boolean}
+ * - false: if the media is currently playing
+ * - true: if media is not currently playing
+ */
+
+
+ Player.prototype.paused = function paused() {
+ // The initial state of paused should be true (in Safari it's actually false)
+ return this.techGet_('paused') === false ? false : true;
+ };
+
+ /**
+ * Get a TimeRange object representing the current ranges of time that the user
+ * has played.
+ *
+ * @return {TimeRange}
+ * A time range object that represents all the increments of time that have
+ * been played.
+ */
+
+
+ Player.prototype.played = function played() {
+ return this.techGet_('played') || createTimeRanges(0, 0);
+ };
+
+ /**
+ * Returns whether or not the user is "scrubbing". Scrubbing is
+ * when the user has clicked the progress bar handle and is
+ * dragging it along the progress bar.
+ *
+ * @param {boolean} [isScrubbing]
+ * whether the user is or is not scrubbing
+ *
+ * @return {boolean}
+ * The value of scrubbing when getting
+ */
+
+
+ Player.prototype.scrubbing = function scrubbing(isScrubbing) {
+ if (typeof isScrubbing === 'undefined') {
+ return this.scrubbing_;
+ }
+ this.scrubbing_ = !!isScrubbing;
+
+ if (isScrubbing) {
+ this.addClass('vjs-scrubbing');
+ } else {
+ this.removeClass('vjs-scrubbing');
+ }
+ };
+
+ /**
+ * Get or set the current time (in seconds)
+ *
+ * @param {number|string} [seconds]
+ * The time to seek to in seconds
+ *
+ * @return {number}
+ * - the current time in seconds when getting
+ */
+
+
+ Player.prototype.currentTime = function currentTime(seconds) {
+ if (typeof seconds !== 'undefined') {
+ if (seconds < 0) {
+ seconds = 0;
+ }
+ this.techCall_('setCurrentTime', seconds);
+ return;
+ }
+
+ // cache last currentTime and return. default to 0 seconds
+ //
+ // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+ // currentTime when scrubbing, but may not provide much performance benefit afterall.
+ // Should be tested. Also something has to read the actual current time or the cache will
+ // never get updated.
+ this.cache_.currentTime = this.techGet_('currentTime') || 0;
+ return this.cache_.currentTime;
+ };
+
+ /**
+ * Normally gets the length in time of the video in seconds;
+ * in all but the rarest use cases an argument will NOT be passed to the method
+ *
+ * > **NOTE**: The video must have started loading before the duration can be
+ * known, and in the case of Flash, may not be known until the video starts
+ * playing.
+ *
+ * @fires Player#durationchange
+ *
+ * @param {number} [seconds]
+ * The duration of the video to set in seconds
+ *
+ * @return {number}
+ * - The duration of the video in seconds when getting
+ */
+
+
+ Player.prototype.duration = function duration(seconds) {
+ if (seconds === undefined) {
+ // return NaN if the duration is not known
+ return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+ }
+
+ seconds = parseFloat(seconds);
+
+ // Standardize on Infinity for signaling video is live
+ if (seconds < 0) {
+ seconds = Infinity;
+ }
+
+ if (seconds !== this.cache_.duration) {
+ // Cache the last set value for optimized scrubbing (esp. Flash)
+ this.cache_.duration = seconds;
+
+ if (seconds === Infinity) {
+ this.addClass('vjs-live');
+ } else {
+ this.removeClass('vjs-live');
+ }
+ /**
+ * @event Player#durationchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('durationchange');
+ }
+ };
+
+ /**
+ * Calculates how much time is left in the video. Not part
+ * of the native video API.
+ *
+ * @return {number}
+ * The time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTime = function remainingTime() {
+ return this.duration() - this.currentTime();
+ };
+
+ /**
+ * A remaining time function that is intented to be used when
+ * the time is to be displayed directly to the user.
+ *
+ * @return {number}
+ * The rounded time remaining in seconds
+ */
+
+
+ Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {
+ return Math.floor(this.duration()) - Math.floor(this.currentTime());
+ };
+
+ //
+ // Kind of like an array of portions of the video that have been downloaded.
+
+ /**
+ * Get a TimeRange object with an array of the times of the video
+ * that have been downloaded. If you just want the percent of the
+ * video that's been downloaded, use bufferedPercent.
+ *
+ * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+ *
+ * @return {TimeRange}
+ * A mock TimeRange object (following HTML spec)
+ */
+
+
+ Player.prototype.buffered = function buffered() {
+ var buffered = this.techGet_('buffered');
+
+ if (!buffered || !buffered.length) {
+ buffered = createTimeRanges(0, 0);
+ }
+
+ return buffered;
+ };
+
+ /**
+ * Get the percent (as a decimal) of the video that's been downloaded.
+ * This method is not a part of the native HTML video API.
+ *
+ * @return {number}
+ * A decimal between 0 and 1 representing the percent
+ * that is buffered 0 being 0% and 1 being 100%
+ */
+
+
+ Player.prototype.bufferedPercent = function bufferedPercent$$1() {
+ return bufferedPercent(this.buffered(), this.duration());
+ };
+
+ /**
+ * Get the ending time of the last buffered time range
+ * This is used in the progress bar to encapsulate all time ranges.
+ *
+ * @return {number}
+ * The end of the last buffered time range
+ */
+
+
+ Player.prototype.bufferedEnd = function bufferedEnd() {
+ var buffered = this.buffered();
+ var duration = this.duration();
+ var end = buffered.end(buffered.length - 1);
+
+ if (end > duration) {
+ end = duration;
+ }
+
+ return end;
+ };
+
+ /**
+ * Get or set the current volume of the media
+ *
+ * @param {number} [percentAsDecimal]
+ * The new volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * The current volume as a percent when getting
+ */
+
+
+ Player.prototype.volume = function volume(percentAsDecimal) {
+ var vol = void 0;
+
+ if (percentAsDecimal !== undefined) {
+ // Force value to between 0 and 1
+ vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+ this.cache_.volume = vol;
+ this.techCall_('setVolume', vol);
+
+ if (vol > 0) {
+ this.lastVolume_(vol);
+ }
+
+ return;
+ }
+
+ // Default to 1 when returning current volume.
+ vol = parseFloat(this.techGet_('volume'));
+ return isNaN(vol) ? 1 : vol;
+ };
+
+ /**
+ * Get the current muted state, or turn mute on or off
+ *
+ * @param {boolean} [muted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean}
+ * - true if mute is on and getting
+ * - false if mute is off and getting
+ */
+
+
+ Player.prototype.muted = function muted(_muted) {
+ if (_muted !== undefined) {
+ this.techCall_('setMuted', _muted);
+ return;
+ }
+ return this.techGet_('muted') || false;
+ };
+
+ /**
+ * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+ * indicates the state of muted on initial playback.
+ *
+ * ```js
+ * var myPlayer = videojs('some-player-id');
+ *
+ * myPlayer.src("http://www.example.com/path/to/video.mp4");
+ *
+ * // get, should be false
+ * console.log(myPlayer.defaultMuted());
+ * // set to true
+ * myPlayer.defaultMuted(true);
+ * // get should be true
+ * console.log(myPlayer.defaultMuted());
+ * ```
+ *
+ * @param {boolean} [defaultMuted]
+ * - true to mute
+ * - false to unmute
+ *
+ * @return {boolean|Player}
+ * - true if defaultMuted is on and getting
+ * - false if defaultMuted is off and getting
+ * - A reference to the current player when setting
+ */
+
+
+ Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {
+ if (_defaultMuted !== undefined) {
+ return this.techCall_('setDefaultMuted', _defaultMuted);
+ }
+ return this.techGet_('defaultMuted') || false;
+ };
+
+ /**
+ * Get the last volume, or set it
+ *
+ * @param {number} [percentAsDecimal]
+ * The new last volume as a decimal percent:
+ * - 0 is muted/0%/off
+ * - 1.0 is 100%/full
+ * - 0.5 is half volume or 50%
+ *
+ * @return {number}
+ * the current value of lastVolume as a percent when getting
+ *
+ * @private
+ */
+
+
+ Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {
+ if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+ this.cache_.lastVolume = percentAsDecimal;
+ return;
+ }
+ return this.cache_.lastVolume;
+ };
+
+ /**
+ * Check if current tech can support native fullscreen
+ * (e.g. with built in controls like iOS, so not our flash swf)
+ *
+ * @return {boolean}
+ * if native fullscreen is supported
+ */
+
+
+ Player.prototype.supportsFullScreen = function supportsFullScreen() {
+ return this.techGet_('supportsFullScreen') || false;
+ };
+
+ /**
+ * Check if the player is in fullscreen mode or tell the player that it
+ * is or is not in fullscreen mode.
+ *
+ * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+ * property and instead document.fullscreenElement is used. But isFullscreen is
+ * still a valuable property for internal player workings.
+ *
+ * @param {boolean} [isFS]
+ * Set the players current fullscreen state
+ *
+ * @return {boolean}
+ * - true if fullscreen is on and getting
+ * - false if fullscreen is off and getting
+ */
+
+
+ Player.prototype.isFullscreen = function isFullscreen(isFS) {
+ if (isFS !== undefined) {
+ this.isFullscreen_ = !!isFS;
+ return;
+ }
+ return !!this.isFullscreen_;
+ };
+
+ /**
+ * Increase the size of the video to full screen
+ * In some browsers, full screen is not supported natively, so it enters
+ * "full window mode", where the video fills the browser window.
+ * In browsers and devices that support native full screen, sometimes the
+ * browser's default controls will be shown, and not the Video.js custom skin.
+ * This includes most mobile devices (iOS, Android) and older versions of
+ * Safari.
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.requestFullscreen = function requestFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(true);
+
+ if (fsApi.requestFullscreen) {
+ // the browser supports going fullscreen at the element level so we can
+ // take the controls fullscreen as well as the video
+
+ // Trigger fullscreenchange event after change
+ // We have to specifically add this each time, and remove
+ // when canceling fullscreen. Otherwise if there's multiple
+ // players on a page, they would all be reacting to the same fullscreen
+ // events
+ on(document_1, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {
+ this.isFullscreen(document_1[fsApi.fullscreenElement]);
+
+ // If cancelling fullscreen, remove event listener.
+ if (this.isFullscreen() === false) {
+ off(document_1, fsApi.fullscreenchange, documentFullscreenChange);
+ }
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }));
+
+ this.el_[fsApi.requestFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ // we can't take the video.js controls fullscreen but we can go fullscreen
+ // with native controls
+ this.techCall_('enterFullScreen');
+ } else {
+ // fullscreen isn't supported so we'll just stretch the video element to
+ // fill the viewport
+ this.enterFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * Return the video to its normal size after having been in full screen mode
+ *
+ * @fires Player#fullscreenchange
+ */
+
+
+ Player.prototype.exitFullscreen = function exitFullscreen() {
+ var fsApi = FullscreenApi;
+
+ this.isFullscreen(false);
+
+ // Check for browser element fullscreen support
+ if (fsApi.requestFullscreen) {
+ document_1[fsApi.exitFullscreen]();
+ } else if (this.tech_.supportsFullScreen()) {
+ this.techCall_('exitFullScreen');
+ } else {
+ this.exitFullWindow();
+ /**
+ * @event Player#fullscreenchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('fullscreenchange');
+ }
+ };
+
+ /**
+ * When fullscreen isn't supported we can stretch the
+ * video container to as wide as the browser will let us.
+ *
+ * @fires Player#enterFullWindow
+ */
+
+
+ Player.prototype.enterFullWindow = function enterFullWindow() {
+ this.isFullWindow = true;
+
+ // Storing original doc overflow value to return to when fullscreen is off
+ this.docOrigOverflow = document_1.documentElement.style.overflow;
+
+ // Add listener for esc key to exit fullscreen
+ on(document_1, 'keydown', bind(this, this.fullWindowOnEscKey));
+
+ // Hide any scroll bars
+ document_1.documentElement.style.overflow = 'hidden';
+
+ // Apply fullscreen styles
+ addClass(document_1.body, 'vjs-full-window');
+
+ /**
+ * @event Player#enterFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('enterFullWindow');
+ };
+
+ /**
+ * Check for call to either exit full window or
+ * full screen on ESC key
+ *
+ * @param {string} event
+ * Event to check for key press
+ */
+
+
+ Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
+ if (event.keyCode === 27) {
+ if (this.isFullscreen() === true) {
+ this.exitFullscreen();
+ } else {
+ this.exitFullWindow();
+ }
+ }
+ };
+
+ /**
+ * Exit full window
+ *
+ * @fires Player#exitFullWindow
+ */
+
+
+ Player.prototype.exitFullWindow = function exitFullWindow() {
+ this.isFullWindow = false;
+ off(document_1, 'keydown', this.fullWindowOnEscKey);
+
+ // Unhide scroll bars.
+ document_1.documentElement.style.overflow = this.docOrigOverflow;
+
+ // Remove fullscreen styles
+ removeClass(document_1.body, 'vjs-full-window');
+
+ // Resize the box, controller, and poster to original sizes
+ // this.positionAll();
+ /**
+ * @event Player#exitFullWindow
+ * @type {EventTarget~Event}
+ */
+ this.trigger('exitFullWindow');
+ };
+
+ /**
+ * Check whether the player can play a given mimetype
+ *
+ * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+ *
+ * @param {string} type
+ * The mimetype to check
+ *
+ * @return {string}
+ * 'probably', 'maybe', or '' (empty string)
+ */
+
+
+ Player.prototype.canPlayType = function canPlayType(type) {
+ var can = void 0;
+
+ // Loop through each playback technology in the options order
+ for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
+ var techName = j[i];
+ var tech = Tech.getTech(techName);
+
+ // Support old behavior of techs being registered as components.
+ // Remove once that deprecated behavior is removed.
+ if (!tech) {
+ tech = Component.getComponent(techName);
+ }
+
+ // Check if the current tech is defined before continuing
+ if (!tech) {
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ continue;
+ }
+
+ // Check if the browser supports this technology
+ if (tech.isSupported()) {
+ can = tech.canPlayType(type);
+
+ if (can) {
+ return can;
+ }
+ }
+ }
+
+ return '';
+ };
+
+ /**
+ * Select source based on tech-order or source-order
+ * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+ * defaults to tech-order selection
+ *
+ * @param {Array} sources
+ * The sources for a media asset
+ *
+ * @return {Object|boolean}
+ * Object of source and tech order or false
+ */
+
+
+ Player.prototype.selectSource = function selectSource(sources) {
+ var _this9 = this;
+
+ // Get only the techs specified in `techOrder` that exist and are supported by the
+ // current platform
+ var techs = this.options_.techOrder.map(function (techName) {
+ return [techName, Tech.getTech(techName)];
+ }).filter(function (_ref) {
+ var techName = _ref[0],
+ tech = _ref[1];
+
+ // Check if the current tech is defined before continuing
+ if (tech) {
+ // Check if the browser supports this technology
+ return tech.isSupported();
+ }
+
+ log$1.error('The "' + techName + '" tech is undefined. Skipped browser support check for that tech.');
+ return false;
+ });
+
+ // Iterate over each `innerArray` element once per `outerArray` element and execute
+ // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+ // that value.
+ var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
+ var found = void 0;
+
+ outerArray.some(function (outerChoice) {
+ return innerArray.some(function (innerChoice) {
+ found = tester(outerChoice, innerChoice);
+
+ if (found) {
+ return true;
+ }
+ });
+ });
+
+ return found;
+ };
+
+ var foundSourceAndTech = void 0;
+ var flip = function flip(fn) {
+ return function (a, b) {
+ return fn(b, a);
+ };
+ };
+ var finder = function finder(_ref2, source) {
+ var techName = _ref2[0],
+ tech = _ref2[1];
+
+ if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {
+ return { source: source, tech: techName };
+ }
+ };
+
+ // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+ // to select from them based on their priority.
+ if (this.options_.sourceOrder) {
+ // Source-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+ } else {
+ // Tech-first ordering
+ foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+ }
+
+ return foundSourceAndTech || false;
+ };
+
+ /**
+ * Get or set the video source.
+ *
+ * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+ * A SourceObject, an array of SourceObjects, or a string referencing
+ * a URL to a media source. It is _highly recommended_ that an object
+ * or array of objects is used here, so that source selection
+ * algorithms can take the `type` into account.
+ *
+ * If not provided, this method acts as a getter.
+ *
+ * @return {string|undefined}
+ * If the `source` argument is missing, returns the current source
+ * URL. Otherwise, returns nothing/undefined.
+ */
+
+
+ Player.prototype.src = function src(source) {
+ var _this10 = this;
+
+ // getter usage
+ if (typeof source === 'undefined') {
+ return this.cache_.src || '';
+ }
+ // filter out invalid sources and turn our source into
+ // an array of source objects
+ var sources = filterSource(source);
+
+ // if a source was passed in then it is invalid because
+ // it was filtered to a zero length Array. So we have to
+ // show an error
+ if (!sources.length) {
+ this.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+ return;
+ }
+
+ // intial sources
+ this.changingSrc_ = true;
+
+ this.cache_.sources = sources;
+ this.updateSourceCaches_(sources[0]);
+
+ // middlewareSource is the source after it has been changed by middleware
+ setSource(this, sources[0], function (middlewareSource, mws) {
+ _this10.middleware_ = mws;
+
+ // since sourceSet is async we have to update the cache again after we select a source since
+ // the source that is selected could be out of order from the cache update above this callback.
+ _this10.cache_.sources = sources;
+ _this10.updateSourceCaches_(middlewareSource);
+
+ var err = _this10.src_(middlewareSource);
+
+ if (err) {
+ if (sources.length > 1) {
+ return _this10.src(sources.slice(1));
+ }
+
+ _this10.changingSrc_ = false;
+
+ // We need to wrap this in a timeout to give folks a chance to add error event handlers
+ _this10.setTimeout(function () {
+ this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });
+ }, 0);
+
+ // we could not find an appropriate tech, but let's still notify the delegate that this is it
+ // this needs a better comment about why this is needed
+ _this10.triggerReady();
+
+ return;
+ }
+
+ setTech(mws, _this10.tech_);
+ });
+ };
+
+ /**
+ * Set the source object on the tech, returns a boolean that indicates whether
+ * there is a tech that can play the source or not
+ *
+ * @param {Tech~SourceObject} source
+ * The source object to set on the Tech
+ *
+ * @return {Boolean}
+ * - True if there is no Tech to playback this source
+ * - False otherwise
+ *
+ * @private
+ */
+
+
+ Player.prototype.src_ = function src_(source) {
+ var _this11 = this;
+
+ var sourceTech = this.selectSource([source]);
+
+ if (!sourceTech) {
+ return true;
+ }
+
+ if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+ this.changingSrc_ = true;
+ // load this technology with the chosen source
+ this.loadTech_(sourceTech.tech, sourceTech.source);
+ this.tech_.ready(function () {
+ _this11.changingSrc_ = false;
+ });
+ return false;
+ }
+
+ // wait until the tech is ready to set the source
+ // and set it synchronously if possible (#2326)
+ this.ready(function () {
+
+ // The setSource tech method was added with source handlers
+ // so older techs won't support it
+ // We need to check the direct prototype for the case where subclasses
+ // of the tech do not support source handlers
+ if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+ this.techCall_('setSource', source);
+ } else {
+ this.techCall_('src', source.src);
+ }
+
+ this.changingSrc_ = false;
+ }, true);
+
+ return false;
+ };
+
+ /**
+ * Begin loading the src data.
+ */
+
+
+ Player.prototype.load = function load() {
+ this.techCall_('load');
+ };
+
+ /**
+ * Reset the player. Loads the first tech in the techOrder,
+ * and calls `reset` on the tech`.
+ */
+
+
+ Player.prototype.reset = function reset() {
+ if (this.tech_) {
+ this.tech_.clearTracks('text');
+ }
+ this.loadTech_(this.options_.techOrder[0], null);
+ this.techCall_('reset');
+ };
+
+ /**
+ * Returns all of the current source objects.
+ *
+ * @return {Tech~SourceObject[]}
+ * The current source objects
+ */
+
+
+ Player.prototype.currentSources = function currentSources() {
+ var source = this.currentSource();
+ var sources = [];
+
+ // assume `{}` or `{ src }`
+ if (Object.keys(source).length !== 0) {
+ sources.push(source);
+ }
+
+ return this.cache_.sources || sources;
+ };
+
+ /**
+ * Returns the current source object.
+ *
+ * @return {Tech~SourceObject}
+ * The current source object
+ */
+
+
+ Player.prototype.currentSource = function currentSource() {
+ return this.cache_.source || {};
+ };
+
+ /**
+ * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+ * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+ *
+ * @return {string}
+ * The current source
+ */
+
+
+ Player.prototype.currentSrc = function currentSrc() {
+ return this.currentSource() && this.currentSource().src || '';
+ };
+
+ /**
+ * Get the current source type e.g. video/mp4
+ * This can allow you rebuild the current source object so that you could load the same
+ * source and tech later
+ *
+ * @return {string}
+ * The source MIME type
+ */
+
+
+ Player.prototype.currentType = function currentType() {
+ return this.currentSource() && this.currentSource().type || '';
+ };
+
+ /**
+ * Get or set the preload attribute
+ *
+ * @param {boolean} [value]
+ * - true means that we should preload
+ * - false means that we should not preload
+ *
+ * @return {string}
+ * The preload attribute value when getting
+ */
+
+
+ Player.prototype.preload = function preload(value) {
+ if (value !== undefined) {
+ this.techCall_('setPreload', value);
+ this.options_.preload = value;
+ return;
+ }
+ return this.techGet_('preload');
+ };
+
+ /**
+ * Get or set the autoplay option. When this is a boolean it will
+ * modify the attribute on the tech. When this is a string the attribute on
+ * the tech will be removed and `Player` will handle autoplay on loadstarts.
+ *
+ * @param {boolean|string} [value]
+ * - true: autoplay using the browser behavior
+ * - false: do not autoplay
+ * - 'play': call play() on every loadstart
+ * - 'muted': call muted() then play() on every loadstart
+ * - 'any': call play() on every loadstart. if that fails call muted() then play().
+ * - *: values other than those listed here will be set `autoplay` to true
+ *
+ * @return {boolean|string}
+ * The current value of autoplay when getting
+ */
+
+
+ Player.prototype.autoplay = function autoplay(value) {
+ // getter usage
+ if (value === undefined) {
+ return this.options_.autoplay || false;
+ }
+
+ var techAutoplay = void 0;
+
+ // if the value is a valid string set it to that
+ if (typeof value === 'string' && /(any|play|muted)/.test(value)) {
+ this.options_.autoplay = value;
+ this.manualAutoplay_(value);
+ techAutoplay = false;
+
+ // any falsy value sets autoplay to false in the browser,
+ // lets do the same
+ } else if (!value) {
+ this.options_.autoplay = false;
+
+ // any other value (ie truthy) sets autoplay to true
+ } else {
+ this.options_.autoplay = true;
+ }
+
+ techAutoplay = techAutoplay || this.options_.autoplay;
+
+ // if we don't have a tech then we do not queue up
+ // a setAutoplay call on tech ready. We do this because the
+ // autoplay option will be passed in the constructor and we
+ // do not need to set it twice
+ if (this.tech_) {
+ this.techCall_('setAutoplay', techAutoplay);
+ }
+ };
+
+ /**
+ * Set or unset the playsinline attribute.
+ * Playsinline tells the browser that non-fullscreen playback is preferred.
+ *
+ * @param {boolean} [value]
+ * - true means that we should try to play inline by default
+ * - false means that we should use the browser's default playback mode,
+ * which in most cases is inline. iOS Safari is a notable exception
+ * and plays fullscreen by default.
+ *
+ * @return {string|Player}
+ * - the current value of playsinline
+ * - the player when setting
+ *
+ * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+ */
+
+
+ Player.prototype.playsinline = function playsinline(value) {
+ if (value !== undefined) {
+ this.techCall_('setPlaysinline', value);
+ this.options_.playsinline = value;
+ return this;
+ }
+ return this.techGet_('playsinline');
+ };
+
+ /**
+ * Get or set the loop attribute on the video element.
+ *
+ * @param {boolean} [value]
+ * - true means that we should loop the video
+ * - false means that we should not loop the video
+ *
+ * @return {string}
+ * The current value of loop when getting
+ */
+
+
+ Player.prototype.loop = function loop(value) {
+ if (value !== undefined) {
+ this.techCall_('setLoop', value);
+ this.options_.loop = value;
+ return;
+ }
+ return this.techGet_('loop');
+ };
+
+ /**
+ * Get or set the poster image source url
+ *
+ * @fires Player#posterchange
+ *
+ * @param {string} [src]
+ * Poster image source URL
+ *
+ * @return {string}
+ * The current value of poster when getting
+ */
+
+
+ Player.prototype.poster = function poster(src) {
+ if (src === undefined) {
+ return this.poster_;
+ }
+
+ // The correct way to remove a poster is to set as an empty string
+ // other falsey values will throw errors
+ if (!src) {
+ src = '';
+ }
+
+ if (src === this.poster_) {
+ return;
+ }
+
+ // update the internal poster variable
+ this.poster_ = src;
+
+ // update the tech's poster
+ this.techCall_('setPoster', src);
+
+ this.isPosterFromTech_ = false;
+
+ // alert components that the poster has been set
+ /**
+ * This event fires when the poster image is changed on the player.
+ *
+ * @event Player#posterchange
+ * @type {EventTarget~Event}
+ */
+ this.trigger('posterchange');
+ };
+
+ /**
+ * Some techs (e.g. YouTube) can provide a poster source in an
+ * asynchronous way. We want the poster component to use this
+ * poster source so that it covers up the tech's controls.
+ * (YouTube's play button). However we only want to use this
+ * source if the player user hasn't set a poster through
+ * the normal APIs.
+ *
+ * @fires Player#posterchange
+ * @listens Tech#posterchange
+ * @private
+ */
+
+
+ Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {
+ if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+ var newPoster = this.tech_.poster() || '';
+
+ if (newPoster !== this.poster_) {
+ this.poster_ = newPoster;
+ this.isPosterFromTech_ = true;
+
+ // Let components know the poster has changed
+ this.trigger('posterchange');
+ }
+ }
+ };
+
+ /**
+ * Get or set whether or not the controls are showing.
+ *
+ * @fires Player#controlsenabled
+ *
+ * @param {boolean} [bool]
+ * - true to turn controls on
+ * - false to turn controls off
+ *
+ * @return {boolean}
+ * The current value of controls when getting
+ */
+
+
+ Player.prototype.controls = function controls(bool) {
+ if (bool === undefined) {
+ return !!this.controls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.controls_ === bool) {
+ return;
+ }
+
+ this.controls_ = bool;
+
+ if (this.usingNativeControls()) {
+ this.techCall_('setControls', bool);
+ }
+
+ if (this.controls_) {
+ this.removeClass('vjs-controls-disabled');
+ this.addClass('vjs-controls-enabled');
+ /**
+ * @event Player#controlsenabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsenabled');
+ if (!this.usingNativeControls()) {
+ this.addTechControlsListeners_();
+ }
+ } else {
+ this.removeClass('vjs-controls-enabled');
+ this.addClass('vjs-controls-disabled');
+ /**
+ * @event Player#controlsdisabled
+ * @type {EventTarget~Event}
+ */
+ this.trigger('controlsdisabled');
+ if (!this.usingNativeControls()) {
+ this.removeTechControlsListeners_();
+ }
+ }
+ };
+
+ /**
+ * Toggle native controls on/off. Native controls are the controls built into
+ * devices (e.g. default iPhone controls), Flash, or other techs
+ * (e.g. Vimeo Controls)
+ * **This should only be set by the current tech, because only the tech knows
+ * if it can support native controls**
+ *
+ * @fires Player#usingnativecontrols
+ * @fires Player#usingcustomcontrols
+ *
+ * @param {boolean} [bool]
+ * - true to turn native controls on
+ * - false to turn native controls off
+ *
+ * @return {boolean}
+ * The current value of native controls when getting
+ */
+
+
+ Player.prototype.usingNativeControls = function usingNativeControls(bool) {
+ if (bool === undefined) {
+ return !!this.usingNativeControls_;
+ }
+
+ bool = !!bool;
+
+ // Don't trigger a change event unless it actually changed
+ if (this.usingNativeControls_ === bool) {
+ return;
+ }
+
+ this.usingNativeControls_ = bool;
+
+ if (this.usingNativeControls_) {
+ this.addClass('vjs-using-native-controls');
+
+ /**
+ * player is using the native device controls
+ *
+ * @event Player#usingnativecontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingnativecontrols');
+ } else {
+ this.removeClass('vjs-using-native-controls');
+
+ /**
+ * player is using the custom HTML controls
+ *
+ * @event Player#usingcustomcontrols
+ * @type {EventTarget~Event}
+ */
+ this.trigger('usingcustomcontrols');
+ }
+ };
+
+ /**
+ * Set or get the current MediaError
+ *
+ * @fires Player#error
+ *
+ * @param {MediaError|string|number} [err]
+ * A MediaError or a string/number to be turned
+ * into a MediaError
+ *
+ * @return {MediaError|null}
+ * The current MediaError when getting (or null)
+ */
+
+
+ Player.prototype.error = function error(err) {
+ if (err === undefined) {
+ return this.error_ || null;
+ }
+
+ // restoring to default
+ if (err === null) {
+ this.error_ = err;
+ this.removeClass('vjs-error');
+ if (this.errorDisplay) {
+ this.errorDisplay.close();
+ }
+ return;
+ }
+
+ this.error_ = new MediaError(err);
+
+ // add the vjs-error classname to the player
+ this.addClass('vjs-error');
+
+ // log the name of the error type and any message
+ // IE11 logs "[object object]" and required you to expand message to see error object
+ log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);
+
+ /**
+ * @event Player#error
+ * @type {EventTarget~Event}
+ */
+ this.trigger('error');
+
+ return;
+ };
+
+ /**
+ * Report user activity
+ *
+ * @param {Object} event
+ * Event object
+ */
+
+
+ Player.prototype.reportUserActivity = function reportUserActivity(event) {
+ this.userActivity_ = true;
+ };
+
+ /**
+ * Get/set if user is active
+ *
+ * @fires Player#useractive
+ * @fires Player#userinactive
+ *
+ * @param {boolean} [bool]
+ * - true if the user is active
+ * - false if the user is inactive
+ *
+ * @return {boolean}
+ * The current value of userActive when getting
+ */
+
+
+ Player.prototype.userActive = function userActive(bool) {
+ if (bool === undefined) {
+ return this.userActive_;
+ }
+
+ bool = !!bool;
+
+ if (bool === this.userActive_) {
+ return;
+ }
+
+ this.userActive_ = bool;
+
+ if (this.userActive_) {
+ this.userActivity_ = true;
+ this.removeClass('vjs-user-inactive');
+ this.addClass('vjs-user-active');
+ /**
+ * @event Player#useractive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('useractive');
+ return;
+ }
+
+ // Chrome/Safari/IE have bugs where when you change the cursor it can
+ // trigger a mousemove event. This causes an issue when you're hiding
+ // the cursor when the user is inactive, and a mousemove signals user
+ // activity. Making it impossible to go into inactive mode. Specifically
+ // this happens in fullscreen when we really need to hide the cursor.
+ //
+ // When this gets resolved in ALL browsers it can be removed
+ // https://code.google.com/p/chromium/issues/detail?id=103041
+ if (this.tech_) {
+ this.tech_.one('mousemove', function (e) {
+ e.stopPropagation();
+ e.preventDefault();
+ });
+ }
+
+ this.userActivity_ = false;
+ this.removeClass('vjs-user-active');
+ this.addClass('vjs-user-inactive');
+ /**
+ * @event Player#userinactive
+ * @type {EventTarget~Event}
+ */
+ this.trigger('userinactive');
+ };
+
+ /**
+ * Listen for user activity based on timeout value
+ *
+ * @private
+ */
+
+
+ Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {
+ var mouseInProgress = void 0;
+ var lastMoveX = void 0;
+ var lastMoveY = void 0;
+ var handleActivity = bind(this, this.reportUserActivity);
+
+ var handleMouseMove = function handleMouseMove(e) {
+ // #1068 - Prevent mousemove spamming
+ // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+ if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+ lastMoveX = e.screenX;
+ lastMoveY = e.screenY;
+ handleActivity();
+ }
+ };
+
+ var handleMouseDown = function handleMouseDown() {
+ handleActivity();
+ // For as long as the they are touching the device or have their mouse down,
+ // we consider them active even if they're not moving their finger or mouse.
+ // So we want to continue to update that they are active
+ this.clearInterval(mouseInProgress);
+ // Setting userActivity=true now and setting the interval to the same time
+ // as the activityCheck interval (250) should ensure we never miss the
+ // next activityCheck
+ mouseInProgress = this.setInterval(handleActivity, 250);
+ };
+
+ var handleMouseUp = function handleMouseUp(event) {
+ handleActivity();
+ // Stop the interval that maintains activity if the mouse/touch is down
+ this.clearInterval(mouseInProgress);
+ };
+
+ // Any mouse movement will be considered user activity
+ this.on('mousedown', handleMouseDown);
+ this.on('mousemove', handleMouseMove);
+ this.on('mouseup', handleMouseUp);
+
+ // Listen for keyboard navigation
+ // Shouldn't need to use inProgress interval because of key repeat
+ this.on('keydown', handleActivity);
+ this.on('keyup', handleActivity);
+
+ // Run an interval every 250 milliseconds instead of stuffing everything into
+ // the mousemove/touchmove function itself, to prevent performance degradation.
+ // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+ // then gets picked up by this loop
+ // http://ejohn.org/blog/learning-from-twitter/
+ var inactivityTimeout = void 0;
+
+ this.setInterval(function () {
+ // Check to see if mouse/touch activity has happened
+ if (!this.userActivity_) {
+ return;
+ }
+
+ // Reset the activity tracker
+ this.userActivity_ = false;
+
+ // If the user state was inactive, set the state to active
+ this.userActive(true);
+
+ // Clear any existing inactivity timeout to start the timer over
+ this.clearTimeout(inactivityTimeout);
+
+ var timeout = this.options_.inactivityTimeout;
+
+ if (timeout <= 0) {
+ return;
+ }
+
+ // In <timeout> milliseconds, if no more activity has occurred the
+ // user will be considered inactive
+ inactivityTimeout = this.setTimeout(function () {
+ // Protect against the case where the inactivityTimeout can trigger just
+ // before the next user activity is picked up by the activity check loop
+ // causing a flicker
+ if (!this.userActivity_) {
+ this.userActive(false);
+ }
+ }, timeout);
+ }, 250);
+ };
+
+ /**
+ * Gets or sets the current playback rate. A playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed
+ * playback, for instance.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+ *
+ * @param {number} [rate]
+ * New playback rate to set.
+ *
+ * @return {number}
+ * The current playback rate when getting or 1.0
+ */
+
+
+ Player.prototype.playbackRate = function playbackRate(rate) {
+ if (rate !== undefined) {
+ // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+ // that is registered above
+ this.techCall_('setPlaybackRate', rate);
+ return;
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the current default playback rate. A default playback rate of
+ * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+ * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+ * not the current playbackRate.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+ *
+ * @param {number} [rate]
+ * New default playback rate to set.
+ *
+ * @return {number|Player}
+ * - The default playback rate when getting or 1.0
+ * - the player when setting
+ */
+
+
+ Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {
+ if (rate !== undefined) {
+ return this.techCall_('setDefaultPlaybackRate', rate);
+ }
+
+ if (this.tech_ && this.tech_.featuresPlaybackRate) {
+ return this.techGet_('defaultPlaybackRate');
+ }
+ return 1.0;
+ };
+
+ /**
+ * Gets or sets the audio flag
+ *
+ * @param {boolean} bool
+ * - true signals that this is an audio player
+ * - false signals that this is not an audio player
+ *
+ * @return {boolean}
+ * The current value of isAudio when getting
+ */
+
+
+ Player.prototype.isAudio = function isAudio(bool) {
+ if (bool !== undefined) {
+ this.isAudio_ = !!bool;
+ return;
+ }
+
+ return !!this.isAudio_;
+ };
+
+ /**
+ * A helper method for adding a {@link TextTrack} to our
+ * {@link TextTrackList}.
+ *
+ * In addition to the W3C settings we allow adding additional info through options.
+ *
+ * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+ *
+ * @param {string} [kind]
+ * the kind of TextTrack you are adding
+ *
+ * @param {string} [label]
+ * the label to give the TextTrack label
+ *
+ * @param {string} [language]
+ * the language to set on the TextTrack
+ *
+ * @return {TextTrack|undefined}
+ * the TextTrack that was added or undefined
+ * if there is no tech
+ */
+
+
+ Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {
+ if (this.tech_) {
+ return this.tech_.addTextTrack(kind, label, language);
+ }
+ };
+
+ /**
+ * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will
+ * automatically removed from the video element whenever the source changes, unless
+ * manualCleanup is set to false.
+ *
+ * @param {Object} options
+ * Options to pass to {@link HTMLTrackElement} during creation. See
+ * {@link HTMLTrackElement} for object properties that you should use.
+ *
+ * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
+ *
+ * @return {HtmlTrackElement}
+ * the HTMLTrackElement that was created and added
+ * to the HtmlTrackElementList and the remote
+ * TextTrackList
+ *
+ * @deprecated The default value of the "manualCleanup" parameter will default
+ * to "false" in upcoming versions of Video.js
+ */
+
+
+ Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
+ if (this.tech_) {
+ return this.tech_.addRemoteTextTrack(options, manualCleanup);
+ }
+ };
+
+ /**
+ * Remove a remote {@link TextTrack} from the respective
+ * {@link TextTrackList} and {@link HtmlTrackElementList}.
+ *
+ * @param {Object} track
+ * Remote {@link TextTrack} to remove
+ *
+ * @return {undefined}
+ * does not return anything
+ */
+
+
+ Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {
+ var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ _ref3$track = _ref3.track,
+ track = _ref3$track === undefined ? arguments[0] : _ref3$track;
+
+ // destructure the input into an object with a track argument, defaulting to arguments[0]
+ // default the whole argument to an empty object if nothing was passed in
+
+ if (this.tech_) {
+ return this.tech_.removeRemoteTextTrack(track);
+ }
+ };
+
+ /**
+ * Gets available media playback quality metrics as specified by the W3C's Media
+ * Playback Quality API.
+ *
+ * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+ *
+ * @return {Object|undefined}
+ * An object with supported media playback quality metrics or undefined if there
+ * is no tech or the tech does not support it.
+ */
+
+
+ Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
+ return this.techGet_('getVideoPlaybackQuality');
+ };
+
+ /**
+ * Get video width
+ *
+ * @return {number}
+ * current video width
+ */
+
+
+ Player.prototype.videoWidth = function videoWidth() {
+ return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+ };
+
+ /**
+ * Get video height
+ *
+ * @return {number}
+ * current video height
+ */
+
+
+ Player.prototype.videoHeight = function videoHeight() {
+ return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+ };
+
+ /**
+ * The player's language code
+ * NOTE: The language should be set in the player options if you want the
+ * the controls to be built with a specific language. Changing the language
+ * later will not update controls text.
+ *
+ * @param {string} [code]
+ * the language code to set the player to
+ *
+ * @return {string}
+ * The current language code when getting
+ */
+
+
+ Player.prototype.language = function language(code) {
+ if (code === undefined) {
+ return this.language_;
+ }
+
+ this.language_ = String(code).toLowerCase();
+ };
+
+ /**
+ * Get the player's language dictionary
+ * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+ * Languages specified directly in the player options have precedence
+ *
+ * @return {Array}
+ * An array of of supported languages
+ */
+
+
+ Player.prototype.languages = function languages() {
+ return mergeOptions(Player.prototype.options_.languages, this.languages_);
+ };
+
+ /**
+ * returns a JavaScript object reperesenting the current track
+ * information. **DOES not return it as JSON**
+ *
+ * @return {Object}
+ * Object representing the current of track info
+ */
+
+
+ Player.prototype.toJSON = function toJSON() {
+ var options = mergeOptions(this.options_);
+ var tracks = options.tracks;
+
+ options.tracks = [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ var track = tracks[i];
+
+ // deep merge tracks and null out player so no circular references
+ track = mergeOptions(track);
+ track.player = undefined;
+ options.tracks[i] = track;
+ }
+
+ return options;
+ };
+
+ /**
+ * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+ * component) that immediately overlays the player with arbitrary
+ * content and removes itself when closed.
+ *
+ * @param {string|Function|Element|Array|null} content
+ * Same as {@link ModalDialog#content}'s param of the same name.
+ * The most straight-forward usage is to provide a string or DOM
+ * element.
+ *
+ * @param {Object} [options]
+ * Extra options which will be passed on to the {@link ModalDialog}.
+ *
+ * @return {ModalDialog}
+ * the {@link ModalDialog} that was created
+ */
+
+
+ Player.prototype.createModal = function createModal(content, options) {
+ var _this12 = this;
+
+ options = options || {};
+ options.content = content || '';
+
+ var modal = new ModalDialog(this, options);
+
+ this.addChild(modal);
+ modal.on('dispose', function () {
+ _this12.removeChild(modal);
+ });
+
+ modal.open();
+ return modal;
+ };
+
+ /**
+ * Gets tag settings
+ *
+ * @param {Element} tag
+ * The player tag
+ *
+ * @return {Object}
+ * An object containing all of the settings
+ * for a player tag
+ */
+
+
+ Player.getTagSettings = function getTagSettings(tag) {
+ var baseOptions = {
+ sources: [],
+ tracks: []
+ };
+
+ var tagOptions = getAttributes(tag);
+ var dataSetup = tagOptions['data-setup'];
+
+ if (hasClass(tag, 'vjs-fluid')) {
+ tagOptions.fluid = true;
+ }
+
+ // Check if data-setup attr exists.
+ if (dataSetup !== null) {
+ // Parse options JSON
+ // If empty string, make it a parsable json object.
+ var _safeParseTuple = tuple(dataSetup || '{}'),
+ err = _safeParseTuple[0],
+ data = _safeParseTuple[1];
+
+ if (err) {
+ log$1.error(err);
+ }
+ assign(tagOptions, data);
+ }
+
+ assign(baseOptions, tagOptions);
+
+ // Get tag children settings
+ if (tag.hasChildNodes()) {
+ var children = tag.childNodes;
+
+ for (var i = 0, j = children.length; i < j; i++) {
+ var child = children[i];
+ // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+ var childName = child.nodeName.toLowerCase();
+
+ if (childName === 'source') {
+ baseOptions.sources.push(getAttributes(child));
+ } else if (childName === 'track') {
+ baseOptions.tracks.push(getAttributes(child));
+ }
+ }
+ }
+
+ return baseOptions;
+ };
+
+ /**
+ * Determine whether or not flexbox is supported
+ *
+ * @return {boolean}
+ * - true if flexbox is supported
+ * - false if flexbox is not supported
+ */
+
+
+ Player.prototype.flexNotSupported_ = function flexNotSupported_() {
+ var elem = document_1.createElement('i');
+
+ // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
+ // common flex features that we can rely on when checking for flex support.
+ return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||
+ // IE10-specific (2012 flex spec), available for completeness
+ 'msFlexOrder' in elem.style);
+ };
+
+ return Player;
+ }(Component);
+
+ /**
+ * Get the {@link VideoTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
+ *
+ * @return {VideoTrackList}
+ * the current video track list
+ *
+ * @method Player.prototype.videoTracks
+ */
+
+ /**
+ * Get the {@link AudioTrackList}
+ * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
+ *
+ * @return {AudioTrackList}
+ * the current audio track list
+ *
+ * @method Player.prototype.audioTracks
+ */
+
+ /**
+ * Get the {@link TextTrackList}
+ *
+ * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
+ *
+ * @return {TextTrackList}
+ * the current text track list
+ *
+ * @method Player.prototype.textTracks
+ */
+
+ /**
+ * Get the remote {@link TextTrackList}
+ *
+ * @return {TextTrackList}
+ * The current remote text track list
+ *
+ * @method Player.prototype.remoteTextTracks
+ */
+
+ /**
+ * Get the remote {@link HtmlTrackElementList} tracks.
+ *
+ * @return {HtmlTrackElementList}
+ * The current remote text track element list
+ *
+ * @method Player.prototype.remoteTextTrackEls
+ */
+
+ ALL.names.forEach(function (name$$1) {
+ var props = ALL[name$$1];
+
+ Player.prototype[props.getterName] = function () {
+ if (this.tech_) {
+ return this.tech_[props.getterName]();
+ }
+
+ // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+ // these will be passed to the tech during loading
+ this[props.privateName] = this[props.privateName] || new props.ListClass();
+ return this[props.privateName];
+ };
+ });
+
+ /**
+ * Global player list
+ *
+ * @type {Object}
+ */
+ Player.players = {};
+
+ var navigator = window_1.navigator;
+
+ /*
+ * Player instance options, surfaced using options
+ * options = Player.prototype.options_
+ * Make changes in options, not here.
+ *
+ * @type {Object}
+ * @private
+ */
+ Player.prototype.options_ = {
+ // Default order of fallback technology
+ techOrder: Tech.defaultTechOrder_,
+
+ html5: {},
+ flash: {},
+
+ // default inactivity timeout
+ inactivityTimeout: 2000,
+
+ // default playback rates
+ playbackRates: [],
+ // Add playback rate selection by adding rates
+ // 'playbackRates': [0.5, 1, 1.5, 2],
+
+ // Included control sets
+ children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+
+ language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+
+ // locales and their language translations
+ languages: {},
+
+ // Default message to show when a video cannot be played.
+ notSupportedMessage: 'No compatible source was found for this media.'
+ };
+
+ [
+ /**
+ * Returns whether or not the player is in the "ended" state.
+ *
+ * @return {Boolean} True if the player is in the ended state, false if not.
+ * @method Player#ended
+ */
+ 'ended',
+ /**
+ * Returns whether or not the player is in the "seeking" state.
+ *
+ * @return {Boolean} True if the player is in the seeking state, false if not.
+ * @method Player#seeking
+ */
+ 'seeking',
+ /**
+ * Returns the TimeRanges of the media that are currently available
+ * for seeking to.
+ *
+ * @return {TimeRanges} the seekable intervals of the media timeline
+ * @method Player#seekable
+ */
+ 'seekable',
+ /**
+ * Returns the current state of network activity for the element, from
+ * the codes in the list below.
+ * - NETWORK_EMPTY (numeric value 0)
+ * The element has not yet been initialised. All attributes are in
+ * their initial states.
+ * - NETWORK_IDLE (numeric value 1)
+ * The element's resource selection algorithm is active and has
+ * selected a resource, but it is not actually using the network at
+ * this time.
+ * - NETWORK_LOADING (numeric value 2)
+ * The user agent is actively trying to download data.
+ * - NETWORK_NO_SOURCE (numeric value 3)
+ * The element's resource selection algorithm is active, but it has
+ * not yet found a resource to use.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+ * @return {number} the current network activity state
+ * @method Player#networkState
+ */
+ 'networkState',
+ /**
+ * Returns a value that expresses the current state of the element
+ * with respect to rendering the current playback position, from the
+ * codes in the list below.
+ * - HAVE_NOTHING (numeric value 0)
+ * No information regarding the media resource is available.
+ * - HAVE_METADATA (numeric value 1)
+ * Enough of the resource has been obtained that the duration of the
+ * resource is available.
+ * - HAVE_CURRENT_DATA (numeric value 2)
+ * Data for the immediate current playback position is available.
+ * - HAVE_FUTURE_DATA (numeric value 3)
+ * Data for the immediate current playback position is available, as
+ * well as enough data for the user agent to advance the current
+ * playback position in the direction of playback.
+ * - HAVE_ENOUGH_DATA (numeric value 4)
+ * The user agent estimates that enough data is available for
+ * playback to proceed uninterrupted.
+ *
+ * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+ * @return {number} the current playback rendering state
+ * @method Player#readyState
+ */
+ 'readyState'].forEach(function (fn) {
+ Player.prototype[fn] = function () {
+ return this.techGet_(fn);
+ };
+ });
+
+ TECH_EVENTS_RETRIGGER.forEach(function (event) {
+ Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {
+ return this.trigger(event);
+ };
+ });
+
+ /**
+ * Fired when the player has initial duration and dimension information
+ *
+ * @event Player#loadedmetadata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the player has downloaded data at the current playback position
+ *
+ * @event Player#loadeddata
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the current playback position has changed *
+ * During playback this is fired every 15-250 milliseconds, depending on the
+ * playback technology in use.
+ *
+ * @event Player#timeupdate
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Fired when the volume changes
+ *
+ * @event Player#volumechange
+ * @type {EventTarget~Event}
+ */
+
+ /**
+ * Reports whether or not a player has a plugin available.
+ *
+ * This does not report whether or not the plugin has ever been initialized
+ * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+ *
+ * @method Player#hasPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player has the requested plugin available.
+ */
+
+ /**
+ * Reports whether or not a player is using a plugin by name.
+ *
+ * For basic plugins, this only reports whether the plugin has _ever_ been
+ * initialized on this player.
+ *
+ * @method Player#usingPlugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {boolean}
+ * Whether or not this player is using the requested plugin.
+ */
+
+ Component.registerComponent('Player', Player);
+
+ /**
+ * @file plugin.js
+ */
+
+ /**
+ * The base plugin name.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var BASE_PLUGIN_NAME = 'plugin';
+
+ /**
+ * The key on which a player's active plugins cache is stored.
+ *
+ * @private
+ * @constant
+ * @type {string}
+ */
+ var PLUGIN_CACHE_KEY = 'activePlugins_';
+
+ /**
+ * Stores registered plugins in a private space.
+ *
+ * @private
+ * @type {Object}
+ */
+ var pluginStorage = {};
+
+ /**
+ * Reports whether or not a plugin has been registered.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {boolean}
+ * Whether or not the plugin has been registered.
+ */
+ var pluginExists = function pluginExists(name) {
+ return pluginStorage.hasOwnProperty(name);
+ };
+
+ /**
+ * Get a single registered plugin by name.
+ *
+ * @private
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or undefined).
+ */
+ var getPlugin = function getPlugin(name) {
+ return pluginExists(name) ? pluginStorage[name] : undefined;
+ };
+
+ /**
+ * Marks a plugin as "active" on a player.
+ *
+ * Also, ensures that the player has an object for tracking active plugins.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ */
+ var markPluginAsActive = function markPluginAsActive(player, name) {
+ player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+ player[PLUGIN_CACHE_KEY][name] = true;
+ };
+
+ /**
+ * Triggers a pair of plugin setup events.
+ *
+ * @private
+ * @param {Player} player
+ * A Video.js player instance.
+ *
+ * @param {Plugin~PluginEventHash} hash
+ * A plugin event hash.
+ *
+ * @param {Boolean} [before]
+ * If true, prefixes the event name with "before". In other words,
+ * use this to trigger "beforepluginsetup" instead of "pluginsetup".
+ */
+ var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
+ var eventName = (before ? 'before' : '') + 'pluginsetup';
+
+ player.trigger(eventName, hash);
+ player.trigger(eventName + ':' + hash.name, hash);
+ };
+
+ /**
+ * Takes a basic plugin function and returns a wrapper function which marks
+ * on the player that the plugin has been activated.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Function} plugin
+ * The basic plugin.
+ *
+ * @returns {Function}
+ * A wrapper function for the given plugin.
+ */
+ var createBasicPlugin = function createBasicPlugin(name, plugin) {
+ var basicPluginWrapper = function basicPluginWrapper() {
+
+ // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+ // regardless, but we want the hash to be consistent with the hash provided
+ // for advanced plugins.
+ //
+ // The only potentially counter-intuitive thing here is the `instance` in
+ // the "pluginsetup" event is the value returned by the `plugin` function.
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);
+
+ var instance = plugin.apply(this, arguments);
+
+ markPluginAsActive(this, name);
+ triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });
+
+ return instance;
+ };
+
+ Object.keys(plugin).forEach(function (prop) {
+ basicPluginWrapper[prop] = plugin[prop];
+ });
+
+ return basicPluginWrapper;
+ };
+
+ /**
+ * Takes a plugin sub-class and returns a factory function for generating
+ * instances of it.
+ *
+ * This factory function will replace itself with an instance of the requested
+ * sub-class of Plugin.
+ *
+ * @private
+ * @param {string} name
+ * The name of the plugin.
+ *
+ * @param {Plugin} PluginSubClass
+ * The advanced plugin.
+ *
+ * @returns {Function}
+ */
+ var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
+
+ // Add a `name` property to the plugin prototype so that each plugin can
+ // refer to itself by name.
+ PluginSubClass.prototype.name = name;
+
+ return function () {
+ triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);
+
+ for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();
+
+ // The plugin is replaced by a function that returns the current instance.
+ this[name] = function () {
+ return instance;
+ };
+
+ triggerSetupEvent(this, instance.getEventHash());
+
+ return instance;
+ };
+ };
+
+ /**
+ * Parent class for all advanced plugins.
+ *
+ * @mixes module:evented~EventedMixin
+ * @mixes module:stateful~StatefulMixin
+ * @fires Player#beforepluginsetup
+ * @fires Player#beforepluginsetup:$name
+ * @fires Player#pluginsetup
+ * @fires Player#pluginsetup:$name
+ * @listens Player#dispose
+ * @throws {Error}
+ * If attempting to instantiate the base {@link Plugin} class
+ * directly instead of via a sub-class.
+ */
+
+ var Plugin = function () {
+
+ /**
+ * Creates an instance of this class.
+ *
+ * Sub-classes should call `super` to ensure plugins are properly initialized.
+ *
+ * @param {Player} player
+ * A Video.js player instance.
+ */
+ function Plugin(player) {
+ classCallCheck(this, Plugin);
+
+ if (this.constructor === Plugin) {
+ throw new Error('Plugin must be sub-classed; not directly instantiated.');
+ }
+
+ this.player = player;
+
+ // Make this object evented, but remove the added `trigger` method so we
+ // use the prototype version instead.
+ evented(this);
+ delete this.trigger;
+
+ stateful(this, this.constructor.defaultState);
+ markPluginAsActive(player, this.name);
+
+ // Auto-bind the dispose method so we can use it as a listener and unbind
+ // it later easily.
+ this.dispose = bind(this, this.dispose);
+
+ // If the player is disposed, dispose the plugin.
+ player.on('dispose', this.dispose);
+ }
+
+ /**
+ * Get the version of the plugin that was set on <pluginName>.VERSION
+ */
+
+
+ Plugin.prototype.version = function version() {
+ return this.constructor.VERSION;
+ };
+
+ /**
+ * Each event triggered by plugins includes a hash of additional data with
+ * conventional properties.
+ *
+ * This returns that object or mutates an existing hash.
+ *
+ * @param {Object} [hash={}]
+ * An object to be used as event an event hash.
+ *
+ * @returns {Plugin~PluginEventHash}
+ * An event hash object with provided properties mixed-in.
+ */
+
+
+ Plugin.prototype.getEventHash = function getEventHash() {
+ var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ hash.name = this.name;
+ hash.plugin = this.constructor;
+ hash.instance = this;
+ return hash;
+ };
+
+ /**
+ * Triggers an event on the plugin object and overrides
+ * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+ *
+ * @param {string|Object} event
+ * An event type or an object with a type property.
+ *
+ * @param {Object} [hash={}]
+ * Additional data hash to merge with a
+ * {@link Plugin~PluginEventHash|PluginEventHash}.
+ *
+ * @returns {boolean}
+ * Whether or not default was prevented.
+ */
+
+
+ Plugin.prototype.trigger = function trigger$$1(event) {
+ var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ return trigger(this.eventBusEl_, event, this.getEventHash(hash));
+ };
+
+ /**
+ * Handles "statechanged" events on the plugin. No-op by default, override by
+ * subclassing.
+ *
+ * @abstract
+ * @param {Event} e
+ * An event object provided by a "statechanged" event.
+ *
+ * @param {Object} e.changes
+ * An object describing changes that occurred with the "statechanged"
+ * event.
+ */
+
+
+ Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};
+
+ /**
+ * Disposes a plugin.
+ *
+ * Subclasses can override this if they want, but for the sake of safety,
+ * it's probably best to subscribe the "dispose" event.
+ *
+ * @fires Plugin#dispose
+ */
+
+
+ Plugin.prototype.dispose = function dispose() {
+ var name = this.name,
+ player = this.player;
+
+ /**
+ * Signals that a advanced plugin is about to be disposed.
+ *
+ * @event Plugin#dispose
+ * @type {EventTarget~Event}
+ */
+
+ this.trigger('dispose');
+ this.off();
+ player.off('dispose', this.dispose);
+
+ // Eliminate any possible sources of leaking memory by clearing up
+ // references between the player and the plugin instance and nulling out
+ // the plugin's state and replacing methods with a function that throws.
+ player[PLUGIN_CACHE_KEY][name] = false;
+ this.player = this.state = null;
+
+ // Finally, replace the plugin name on the player with a new factory
+ // function, so that the plugin is ready to be set up again.
+ player[name] = createPluginFactory(name, pluginStorage[name]);
+ };
+
+ /**
+ * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+ *
+ * @param {string|Function} plugin
+ * If a string, matches the name of a plugin. If a function, will be
+ * tested directly.
+ *
+ * @returns {boolean}
+ * Whether or not a plugin is a basic plugin.
+ */
+
+
+ Plugin.isBasic = function isBasic(plugin) {
+ var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+
+ return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+ };
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @returns {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+
+
+ Plugin.registerPlugin = function registerPlugin(name, plugin) {
+ if (typeof name !== 'string') {
+ throw new Error('Illegal plugin name, "' + name + '", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');
+ }
+
+ if (pluginExists(name)) {
+ log$1.warn('A plugin named "' + name + '" already exists. You may want to avoid re-registering plugins!');
+ } else if (Player.prototype.hasOwnProperty(name)) {
+ throw new Error('Illegal plugin name, "' + name + '", cannot share a name with an existing player method!');
+ }
+
+ if (typeof plugin !== 'function') {
+ throw new Error('Illegal plugin for "' + name + '", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');
+ }
+
+ pluginStorage[name] = plugin;
+
+ // Add a player prototype method for all sub-classed plugins (but not for
+ // the base Plugin class).
+ if (name !== BASE_PLUGIN_NAME) {
+ if (Plugin.isBasic(plugin)) {
+ Player.prototype[name] = createBasicPlugin(name, plugin);
+ } else {
+ Player.prototype[name] = createPluginFactory(name, plugin);
+ }
+ }
+
+ return plugin;
+ };
+
+ /**
+ * De-register a Video.js plugin.
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered.
+ */
+
+
+ Plugin.deregisterPlugin = function deregisterPlugin(name) {
+ if (name === BASE_PLUGIN_NAME) {
+ throw new Error('Cannot de-register base plugin.');
+ }
+ if (pluginExists(name)) {
+ delete pluginStorage[name];
+ delete Player.prototype[name];
+ }
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @returns {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+
+
+ Plugin.getPlugins = function getPlugins() {
+ var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);
+
+ var result = void 0;
+
+ names.forEach(function (name) {
+ var plugin = getPlugin(name);
+
+ if (plugin) {
+ result = result || {};
+ result[name] = plugin;
+ }
+ });
+
+ return result;
+ };
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {string}
+ * The plugin's version or an empty string.
+ */
+
+
+ Plugin.getPluginVersion = function getPluginVersion(name) {
+ var plugin = getPlugin(name);
+
+ return plugin && plugin.VERSION || '';
+ };
+
+ return Plugin;
+ }();
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @static
+ * @method getPlugin
+ * @memberOf Plugin
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @returns {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+
+
+ Plugin.getPlugin = getPlugin;
+
+ /**
+ * The name of the base plugin class as it is registered.
+ *
+ * @type {string}
+ */
+ Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+
+ Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.usingPlugin = function (name) {
+ return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+ };
+
+ /**
+ * Documented in player.js
+ *
+ * @ignore
+ */
+ Player.prototype.hasPlugin = function (name) {
+ return !!pluginExists(name);
+ };
+
+ /**
+ * @file extend.js
+ * @module extend
+ */
+
+ /**
+ * A combination of node inherits and babel's inherits (after transpile).
+ * Both work the same but node adds `super_` to the subClass
+ * and Bable adds the superClass as __proto__. Both seem useful.
+ *
+ * @param {Object} subClass
+ * The class to inherit to
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @private
+ */
+ var _inherits = function _inherits(subClass, superClass) {
+ if (typeof superClass !== 'function' && superClass !== null) {
+ throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+
+ if (superClass) {
+ // node
+ subClass.super_ = superClass;
+ }
+ };
+
+ /**
+ * Function for subclassing using the same inheritance that
+ * videojs uses internally
+ *
+ * @static
+ * @const
+ *
+ * @param {Object} superClass
+ * The class to inherit from
+ *
+ * @param {Object} [subClassMethods={}]
+ * The class to inherit to
+ *
+ * @return {Object}
+ * The new object with subClassMethods that inherited superClass.
+ */
+ var extendFn = function extendFn(superClass) {
+ var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var subClass = function subClass() {
+ superClass.apply(this, arguments);
+ };
+
+ var methods = {};
+
+ if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {
+ if (subClassMethods.constructor !== Object.prototype.constructor) {
+ subClass = subClassMethods.constructor;
+ }
+ methods = subClassMethods;
+ } else if (typeof subClassMethods === 'function') {
+ subClass = subClassMethods;
+ }
+
+ _inherits(subClass, superClass);
+
+ // Extend subObj's prototype with functions and other properties from props
+ for (var name in methods) {
+ if (methods.hasOwnProperty(name)) {
+ subClass.prototype[name] = methods[name];
+ }
+ }
+
+ return subClass;
+ };
+
+ /**
+ * @file video.js
+ * @module videojs
+ */
+
+ /**
+ * Normalize an `id` value by trimming off a leading `#`
+ *
+ * @param {string} id
+ * A string, maybe with a leading `#`.
+ *
+ * @returns {string}
+ * The string, without any leading `#`.
+ */
+ var normalizeId = function normalizeId(id) {
+ return id.indexOf('#') === 0 ? id.slice(1) : id;
+ };
+
+ /**
+ * Doubles as the main function for users to create a player instance and also
+ * the main library object.
+ * The `videojs` function can be used to initialize or retrieve a player.
+ *
+ * @param {string|Element} id
+ * Video element or video element ID
+ *
+ * @param {Object} [options]
+ * Optional options object for config/settings
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * Optional ready callback
+ *
+ * @return {Player}
+ * A player instance
+ */
+ function videojs$1(id, options, ready) {
+ var player = videojs$1.getPlayer(id);
+
+ if (player) {
+ if (options) {
+ log$1.warn('Player "' + id + '" is already initialised. Options will not be applied.');
+ }
+ if (ready) {
+ player.ready(ready);
+ }
+ return player;
+ }
+
+ var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+
+ if (!isEl(el)) {
+ throw new TypeError('The element or ID supplied is not valid. (videojs)');
+ }
+
+ if (!document_1.body.contains(el)) {
+ log$1.warn('The element supplied is not included in the DOM');
+ }
+
+ options = options || {};
+
+ videojs$1.hooks('beforesetup').forEach(function (hookFunction) {
+ var opts = hookFunction(el, mergeOptions(options));
+
+ if (!isObject(opts) || Array.isArray(opts)) {
+ log$1.error('please return an object in beforesetup hooks');
+ return;
+ }
+
+ options = mergeOptions(options, opts);
+ });
+
+ // We get the current "Player" component here in case an integration has
+ // replaced it with a custom player.
+ var PlayerComponent = Component.getComponent('Player');
+
+ player = new PlayerComponent(el, options, ready);
+
+ videojs$1.hooks('setup').forEach(function (hookFunction) {
+ return hookFunction(player);
+ });
+
+ return player;
+ }
+
+ /**
+ * An Object that contains lifecycle hooks as keys which point to an array
+ * of functions that are run when a lifecycle is triggered
+ */
+ videojs$1.hooks_ = {};
+
+ /**
+ * Get a list of hooks for a specific lifecycle
+ * @function videojs.hooks
+ *
+ * @param {string} type
+ * the lifecyle to get hooks from
+ *
+ * @param {Function|Function[]} [fn]
+ * Optionally add a hook (or hooks) to the lifecycle that your are getting.
+ *
+ * @return {Array}
+ * an array of hooks, or an empty array if there are none.
+ */
+ videojs$1.hooks = function (type, fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type] || [];
+ if (fn) {
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].concat(fn);
+ }
+ return videojs$1.hooks_[type];
+ };
+
+ /**
+ * Add a function hook to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hook = function (type, fn) {
+ videojs$1.hooks(type, fn);
+ };
+
+ /**
+ * Add a function hook that will only run once to a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle to hook the function to.
+ *
+ * @param {Function|Function[]}
+ * The function or array of functions to attach.
+ */
+ videojs$1.hookOnce = function (type, fn) {
+ videojs$1.hooks(type, [].concat(fn).map(function (original) {
+ var wrapper = function wrapper() {
+ videojs$1.removeHook(type, wrapper);
+ return original.apply(undefined, arguments);
+ };
+
+ return wrapper;
+ }));
+ };
+
+ /**
+ * Remove a hook from a specific videojs lifecycle.
+ *
+ * @param {string} type
+ * the lifecycle that the function hooked to
+ *
+ * @param {Function} fn
+ * The hooked function to remove
+ *
+ * @return {boolean}
+ * The function that was removed or undef
+ */
+ videojs$1.removeHook = function (type, fn) {
+ var index = videojs$1.hooks(type).indexOf(fn);
+
+ if (index <= -1) {
+ return false;
+ }
+
+ videojs$1.hooks_[type] = videojs$1.hooks_[type].slice();
+ videojs$1.hooks_[type].splice(index, 1);
+
+ return true;
+ };
+
+ // Add default styles
+ if (window_1.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+ var style$1 = $('.vjs-styles-defaults');
+
+ if (!style$1) {
+ style$1 = createStyleElement('vjs-styles-defaults');
+ var head = $('head');
+
+ if (head) {
+ head.insertBefore(style$1, head.firstChild);
+ }
+ setTextContent(style$1, '\n .video-js {\n width: 300px;\n height: 150px;\n }\n\n .vjs-fluid {\n padding-top: 56.25%\n }\n ');
+ }
+ }
+
+ // Run Auto-load players
+ // You have to wait at least once in case this script is loaded after your
+ // video in the DOM (weird behavior only with minified version)
+ autoSetupTimeout(1, videojs$1);
+
+ /**
+ * Current software version. Follows semver.
+ *
+ * @type {string}
+ */
+ videojs$1.VERSION = version;
+
+ /**
+ * The global options object. These are the settings that take effect
+ * if no overrides are specified when the player is created.
+ *
+ * @type {Object}
+ */
+ videojs$1.options = Player.prototype.options_;
+
+ /**
+ * Get an object with the currently created players, keyed by player ID
+ *
+ * @return {Object}
+ * The created players
+ */
+ videojs$1.getPlayers = function () {
+ return Player.players;
+ };
+
+ /**
+ * Get a single player based on an ID or DOM element.
+ *
+ * This is useful if you want to check if an element or ID has an associated
+ * Video.js player, but not create one if it doesn't.
+ *
+ * @param {string|Element} id
+ * An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+ * or a string matching the `id` of such an element.
+ *
+ * @returns {Player|undefined}
+ * A player instance or `undefined` if there is no player instance
+ * matching the argument.
+ */
+ videojs$1.getPlayer = function (id) {
+ var players = Player.players;
+ var tag = void 0;
+
+ if (typeof id === 'string') {
+ var nId = normalizeId(id);
+ var player = players[nId];
+
+ if (player) {
+ return player;
+ }
+
+ tag = $('#' + nId);
+ } else {
+ tag = id;
+ }
+
+ if (isEl(tag)) {
+ var _tag = tag,
+ _player = _tag.player,
+ playerId = _tag.playerId;
+
+ // Element may have a `player` property referring to an already created
+ // player instance. If so, return that.
+
+ if (_player || players[playerId]) {
+ return _player || players[playerId];
+ }
+ }
+ };
+
+ /**
+ * Returns an array of all current players.
+ *
+ * @return {Array}
+ * An array of all players. The array will be in the order that
+ * `Object.keys` provides, which could potentially vary between
+ * JavaScript engines.
+ *
+ */
+ videojs$1.getAllPlayers = function () {
+ return (
+
+ // Disposed players leave a key with a `null` value, so we need to make sure
+ // we filter those out.
+ Object.keys(Player.players).map(function (k) {
+ return Player.players[k];
+ }).filter(Boolean)
+ );
+ };
+
+ /**
+ * Expose players object.
+ *
+ * @memberOf videojs
+ * @property {Object} players
+ */
+ videojs$1.players = Player.players;
+
+ /**
+ * Get a component class object by name
+ *
+ * @borrows Component.getComponent as videojs.getComponent
+ */
+ videojs$1.getComponent = Component.getComponent;
+
+ /**
+ * Register a component so it can referred to by name. Used when adding to other
+ * components, either through addChild `component.addChild('myComponent')` or through
+ * default children options `{ children: ['myComponent'] }`.
+ *
+ * > NOTE: You could also just initialize the component before adding.
+ * `component.addChild(new MyComponent());`
+ *
+ * @param {string} name
+ * The class name of the component
+ *
+ * @param {Component} comp
+ * The component class
+ *
+ * @return {Component}
+ * The newly registered component
+ */
+ videojs$1.registerComponent = function (name$$1, comp) {
+ if (Tech.isTech(comp)) {
+ log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');
+ }
+
+ Component.registerComponent.call(Component, name$$1, comp);
+ };
+
+ /**
+ * Get a Tech class object by name
+ *
+ * @borrows Tech.getTech as videojs.getTech
+ */
+ videojs$1.getTech = Tech.getTech;
+
+ /**
+ * Register a Tech so it can referred to by name.
+ * This is used in the tech order for the player.
+ *
+ * @borrows Tech.registerTech as videojs.registerTech
+ */
+ videojs$1.registerTech = Tech.registerTech;
+
+ /**
+ * Register a middleware to a source type.
+ *
+ * @param {String} type A string representing a MIME type.
+ * @param {function(player):object} middleware A middleware factory that takes a player.
+ */
+ videojs$1.use = use;
+
+ /**
+ * An object that can be returned by a middleware to signify
+ * that the middleware is being terminated.
+ *
+ * @type {object}
+ * @memberOf {videojs}
+ * @property {object} middleware.TERMINATOR
+ */
+ Object.defineProperty(videojs$1, 'middleware', {
+ value: {},
+ writeable: false,
+ enumerable: true
+ });
+
+ Object.defineProperty(videojs$1.middleware, 'TERMINATOR', {
+ value: TERMINATOR,
+ writeable: false,
+ enumerable: true
+ });
+
+ /**
+ * A suite of browser and device tests from {@link browser}.
+ *
+ * @type {Object}
+ * @private
+ */
+ videojs$1.browser = browser;
+
+ /**
+ * Whether or not the browser supports touch events. Included for backward
+ * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`
+ * instead going forward.
+ *
+ * @deprecated since version 5.0
+ * @type {boolean}
+ */
+ videojs$1.TOUCH_ENABLED = TOUCH_ENABLED;
+
+ /**
+ * Subclass an existing class
+ * Mimics ES6 subclassing with the `extend` keyword
+ *
+ * @borrows extend:extendFn as videojs.extend
+ */
+ videojs$1.extend = extendFn;
+
+ /**
+ * Merge two options objects recursively
+ * Performs a deep merge like lodash.merge but **only merges plain objects**
+ * (not arrays, elements, anything else)
+ * Other values will be copied directly from the second object.
+ *
+ * @borrows merge-options:mergeOptions as videojs.mergeOptions
+ */
+ videojs$1.mergeOptions = mergeOptions;
+
+ /**
+ * Change the context (this) of a function
+ *
+ * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native
+ * `function() {}.bind(newContext);` instead of this.
+ *
+ * @borrows fn:bind as videojs.bind
+ */
+ videojs$1.bind = bind;
+
+ /**
+ * Register a Video.js plugin.
+ *
+ * @borrows plugin:registerPlugin as videojs.registerPlugin
+ * @method registerPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be registered. Must be a string and
+ * must not match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ * @param {Function} plugin
+ * A sub-class of `Plugin` or a function for basic plugins.
+ *
+ * @return {Function}
+ * For advanced plugins, a factory function for that plugin. For
+ * basic plugins, a wrapper function that initializes the plugin.
+ */
+ videojs$1.registerPlugin = Plugin.registerPlugin;
+
+ /**
+ * Deregister a Video.js plugin.
+ *
+ * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin
+ * @method deregisterPlugin
+ *
+ * @param {string} name
+ * The name of the plugin to be deregistered. Must be a string and
+ * must match an existing plugin or a method on the `Player`
+ * prototype.
+ *
+ */
+ videojs$1.deregisterPlugin = Plugin.deregisterPlugin;
+
+ /**
+ * Deprecated method to register a plugin with Video.js
+ *
+ * @deprecated
+ * videojs.plugin() is deprecated; use videojs.registerPlugin() instead
+ *
+ * @param {string} name
+ * The plugin name
+ *
+ * @param {Plugin|Function} plugin
+ * The plugin sub-class or function
+ */
+ videojs$1.plugin = function (name$$1, plugin) {
+ log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+ return Plugin.registerPlugin(name$$1, plugin);
+ };
+
+ /**
+ * Gets an object containing multiple Video.js plugins.
+ *
+ * @param {Array} [names]
+ * If provided, should be an array of plugin names. Defaults to _all_
+ * plugin names.
+ *
+ * @return {Object|undefined}
+ * An object containing plugin(s) associated with their name(s) or
+ * `undefined` if no matching plugins exist).
+ */
+ videojs$1.getPlugins = Plugin.getPlugins;
+
+ /**
+ * Gets a plugin by name if it exists.
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {Function|undefined}
+ * The plugin (or `undefined`).
+ */
+ videojs$1.getPlugin = Plugin.getPlugin;
+
+ /**
+ * Gets a plugin's version, if available
+ *
+ * @param {string} name
+ * The name of a plugin.
+ *
+ * @return {string}
+ * The plugin's version or an empty string.
+ */
+ videojs$1.getPluginVersion = Plugin.getPluginVersion;
+
+ /**
+ * Adding languages so that they're available to all players.
+ * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+ *
+ * @param {string} code
+ * The language code or dictionary property
+ *
+ * @param {Object} data
+ * The data values to be translated
+ *
+ * @return {Object}
+ * The resulting language dictionary object
+ */
+ videojs$1.addLanguage = function (code, data) {
+ var _mergeOptions;
+
+ code = ('' + code).toLowerCase();
+
+ videojs$1.options.languages = mergeOptions(videojs$1.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
+
+ return videojs$1.options.languages[code];
+ };
+
+ /**
+ * Log messages
+ *
+ * @borrows log:log as videojs.log
+ */
+ videojs$1.log = log$1;
+
+ /**
+ * Creates an emulated TimeRange object.
+ *
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRange
+ */
+ /**
+ * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges
+ */
+ videojs$1.createTimeRange = videojs$1.createTimeRanges = createTimeRanges;
+
+ /**
+ * Format seconds as a time string, H:MM:SS or M:SS
+ * Supplying a guide (in seconds) will force a number of leading zeros
+ * to cover the length of the guide
+ *
+ * @borrows format-time:formatTime as videojs.formatTime
+ */
+ videojs$1.formatTime = formatTime;
+
+ /**
+ * Replaces format-time with a custom implementation, to be used in place of the default.
+ *
+ * @borrows format-time:setFormatTime as videojs.setFormatTime
+ *
+ * @method setFormatTime
+ *
+ * @param {Function} customFn
+ * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.
+ * Passed fn should return a string.
+ */
+ videojs$1.setFormatTime = setFormatTime;
+
+ /**
+ * Resets format-time to the default implementation.
+ *
+ * @borrows format-time:resetFormatTime as videojs.resetFormatTime
+ *
+ * @method resetFormatTime
+ */
+ videojs$1.resetFormatTime = resetFormatTime;
+
+ /**
+ * Resolve and parse the elements of a URL
+ *
+ * @borrows url:parseUrl as videojs.parseUrl
+ *
+ */
+ videojs$1.parseUrl = parseUrl;
+
+ /**
+ * Returns whether the url passed is a cross domain request or not.
+ *
+ * @borrows url:isCrossOrigin as videojs.isCrossOrigin
+ */
+ videojs$1.isCrossOrigin = isCrossOrigin;
+
+ /**
+ * Event target class.
+ *
+ * @borrows EventTarget as videojs.EventTarget
+ */
+ videojs$1.EventTarget = EventTarget;
+
+ /**
+ * Add an event listener to element
+ * It stores the handler function in a separate cache object
+ * and adds a generic handler to the element's event,
+ * along with a unique id (guid) to the element.
+ *
+ * @borrows events:on as videojs.on
+ */
+ videojs$1.on = on;
+
+ /**
+ * Trigger a listener only once for an event
+ *
+ * @borrows events:one as videojs.one
+ */
+ videojs$1.one = one;
+
+ /**
+ * Removes event listeners from an element
+ *
+ * @borrows events:off as videojs.off
+ */
+ videojs$1.off = off;
+
+ /**
+ * Trigger an event for an element
+ *
+ * @borrows events:trigger as videojs.trigger
+ */
+ videojs$1.trigger = trigger;
+
+ /**
+ * A cross-browser XMLHttpRequest wrapper. Here's a simple example:
+ *
+ * @param {Object} options
+ * settings for the request.
+ *
+ * @return {XMLHttpRequest|XDomainRequest}
+ * The request object.
+ *
+ * @see https://github.com/Raynos/xhr
+ */
+ videojs$1.xhr = xhr;
+
+ /**
+ * TextTrack class
+ *
+ * @borrows TextTrack as videojs.TextTrack
+ */
+ videojs$1.TextTrack = TextTrack;
+
+ /**
+ * export the AudioTrack class so that source handlers can create
+ * AudioTracks and then add them to the players AudioTrackList
+ *
+ * @borrows AudioTrack as videojs.AudioTrack
+ */
+ videojs$1.AudioTrack = AudioTrack;
+
+ /**
+ * export the VideoTrack class so that source handlers can create
+ * VideoTracks and then add them to the players VideoTrackList
+ *
+ * @borrows VideoTrack as videojs.VideoTrack
+ */
+ videojs$1.VideoTrack = VideoTrack;
+
+ /**
+ * Determines, via duck typing, whether or not a value is a DOM element.
+ *
+ * @borrows dom:isEl as videojs.isEl
+ * @deprecated Use videojs.dom.isEl() instead
+ */
+
+ /**
+ * Determines, via duck typing, whether or not a value is a text node.
+ *
+ * @borrows dom:isTextNode as videojs.isTextNode
+ * @deprecated Use videojs.dom.isTextNode() instead
+ */
+
+ /**
+ * Creates an element and applies properties.
+ *
+ * @borrows dom:createEl as videojs.createEl
+ * @deprecated Use videojs.dom.createEl() instead
+ */
+
+ /**
+ * Check if an element has a CSS class
+ *
+ * @borrows dom:hasElClass as videojs.hasClass
+ * @deprecated Use videojs.dom.hasClass() instead
+ */
+
+ /**
+ * Add a CSS class name to an element
+ *
+ * @borrows dom:addElClass as videojs.addClass
+ * @deprecated Use videojs.dom.addClass() instead
+ */
+
+ /**
+ * Remove a CSS class name from an element
+ *
+ * @borrows dom:removeElClass as videojs.removeClass
+ * @deprecated Use videojs.dom.removeClass() instead
+ */
+
+ /**
+ * Adds or removes a CSS class name on an element depending on an optional
+ * condition or the presence/absence of the class name.
+ *
+ * @borrows dom:toggleElClass as videojs.toggleClass
+ * @deprecated Use videojs.dom.toggleClass() instead
+ */
+
+ /**
+ * Apply attributes to an HTML element.
+ *
+ * @borrows dom:setElAttributes as videojs.setAttribute
+ * @deprecated Use videojs.dom.setAttributes() instead
+ */
+
+ /**
+ * Get an element's attribute values, as defined on the HTML tag
+ * Attributes are not the same as properties. They're defined on the tag
+ * or with setAttribute (which shouldn't be used with HTML)
+ * This will return true or false for boolean attributes.
+ *
+ * @borrows dom:getElAttributes as videojs.getAttributes
+ * @deprecated Use videojs.dom.getAttributes() instead
+ */
+
+ /**
+ * Empties the contents of an element.
+ *
+ * @borrows dom:emptyEl as videojs.emptyEl
+ * @deprecated Use videojs.dom.emptyEl() instead
+ */
+
+ /**
+ * Normalizes and appends content to an element.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:appendContents as videojs.appendContet
+ * @deprecated Use videojs.dom.appendContent() instead
+ */
+
+ /**
+ * Normalizes and inserts content into an element; this is identical to
+ * `appendContent()`, except it empties the element first.
+ *
+ * The content for an element can be passed in multiple types and
+ * combinations, whose behavior is as follows:
+ *
+ * - String
+ * Normalized into a text node.
+ *
+ * - Element, TextNode
+ * Passed through.
+ *
+ * - Array
+ * A one-dimensional array of strings, elements, nodes, or functions (which
+ * return single strings, elements, or nodes).
+ *
+ * - Function
+ * If the sole argument, is expected to produce a string, element,
+ * node, or array.
+ *
+ * @borrows dom:insertContent as videojs.insertContent
+ * @deprecated Use videojs.dom.insertContent() instead
+ */
+ ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
+ videojs$1[k] = function () {
+ log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');
+ return Dom[k].apply(null, arguments);
+ };
+ });
+
+ /**
+ * A safe getComputedStyle.
+ *
+ * This is because in Firefox, if the player is loaded in an iframe with `display:none`,
+ * then `getComputedStyle` returns `null`, so, we do a null-check to make sure
+ * that the player doesn't break in these cases.
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.
+ *
+ * @borrows computed-style:computedStyle as videojs.computedStyle
+ */
+ videojs$1.computedStyle = computedStyle;
+
+ /**
+ * Export the Dom utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.dom = Dom;
+
+ /**
+ * Export the Url utilities for use in external plugins
+ * and Tech's
+ */
+ videojs$1.url = Url;
+
+ var urlToolkit = createCommonjsModule(function (module, exports) {
+ // see https://tools.ietf.org/html/rfc1808
+
+ /* jshint ignore:start */
+ (function (root) {
+ /* jshint ignore:end */
+
+ var URL_REGEX = /^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/\?#]*\/)*.*?)??(;.*?)?(\?.*?)?(#.*?)?$/;
+ var FIRST_SEGMENT_REGEX = /^([^\/?#]*)(.*)$/;
+ var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g;
+ var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/).*?(?=\/)/g;
+
+ var URLToolkit = { // jshint ignore:line
+ // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
+ // E.g
+ // With opts.alwaysNormalize = false (default, spec compliant)
+ // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
+ // With opts.alwaysNormalize = true (not spec compliant)
+ // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
+ buildAbsoluteURL: function buildAbsoluteURL(baseURL, relativeURL, opts) {
+ opts = opts || {};
+ // remove any remaining space and CRLF
+ baseURL = baseURL.trim();
+ relativeURL = relativeURL.trim();
+ if (!relativeURL) {
+ // 2a) If the embedded URL is entirely empty, it inherits the
+ // entire base URL (i.e., is set equal to the base URL)
+ // and we are done.
+ if (!opts.alwaysNormalize) {
+ return baseURL;
+ }
+ var basePartsForNormalise = URLToolkit.parseURL(baseURL);
+ if (!basePartsForNormalise) {
+ throw new Error('Error trying to parse base URL.');
+ }
+ basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);
+ return URLToolkit.buildURLFromParts(basePartsForNormalise);
+ }
+ var relativeParts = URLToolkit.parseURL(relativeURL);
+ if (!relativeParts) {
+ throw new Error('Error trying to parse relative URL.');
+ }
+ if (relativeParts.scheme) {
+ // 2b) If the embedded URL starts with a scheme name, it is
+ // interpreted as an absolute URL and we are done.
+ if (!opts.alwaysNormalize) {
+ return relativeURL;
+ }
+ relativeParts.path = URLToolkit.normalizePath(relativeParts.path);
+ return URLToolkit.buildURLFromParts(relativeParts);
+ }
+ var baseParts = URLToolkit.parseURL(baseURL);
+ if (!baseParts) {
+ throw new Error('Error trying to parse base URL.');
+ }
+ if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
+ // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
+ // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
+ var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);
+ baseParts.netLoc = pathParts[1];
+ baseParts.path = pathParts[2];
+ }
+ if (baseParts.netLoc && !baseParts.path) {
+ baseParts.path = '/';
+ }
+ var builtParts = {
+ // 2c) Otherwise, the embedded URL inherits the scheme of
+ // the base URL.
+ scheme: baseParts.scheme,
+ netLoc: relativeParts.netLoc,
+ path: null,
+ params: relativeParts.params,
+ query: relativeParts.query,
+ fragment: relativeParts.fragment
+ };
+ if (!relativeParts.netLoc) {
+ // 3) If the embedded URL's <net_loc> is non-empty, we skip to
+ // Step 7. Otherwise, the embedded URL inherits the <net_loc>
+ // (if any) of the base URL.
+ builtParts.netLoc = baseParts.netLoc;
+ // 4) If the embedded URL path is preceded by a slash "/", the
+ // path is not relative and we skip to Step 7.
+ if (relativeParts.path[0] !== '/') {
+ if (!relativeParts.path) {
+ // 5) If the embedded URL path is empty (and not preceded by a
+ // slash), then the embedded URL inherits the base URL path
+ builtParts.path = baseParts.path;
+ // 5a) if the embedded URL's <params> is non-empty, we skip to
+ // step 7; otherwise, it inherits the <params> of the base
+ // URL (if any) and
+ if (!relativeParts.params) {
+ builtParts.params = baseParts.params;
+ // 5b) if the embedded URL's <query> is non-empty, we skip to
+ // step 7; otherwise, it inherits the <query> of the base
+ // URL (if any) and we skip to step 7.
+ if (!relativeParts.query) {
+ builtParts.query = baseParts.query;
+ }
+ }
+ } else {
+ // 6) The last segment of the base URL's path (anything
+ // following the rightmost slash "/", or the entire path if no
+ // slash is present) is removed and the embedded URL's path is
+ // appended in its place.
+ var baseURLPath = baseParts.path;
+ var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;
+ builtParts.path = URLToolkit.normalizePath(newPath);
+ }
+ }
+ }
+ if (builtParts.path === null) {
+ builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;
+ }
+ return URLToolkit.buildURLFromParts(builtParts);
+ },
+ parseURL: function parseURL(url) {
+ var parts = URL_REGEX.exec(url);
+ if (!parts) {
+ return null;
+ }
+ return {
+ scheme: parts[1] || '',
+ netLoc: parts[2] || '',
+ path: parts[3] || '',
+ params: parts[4] || '',
+ query: parts[5] || '',
+ fragment: parts[6] || ''
+ };
+ },
+ normalizePath: function normalizePath(path) {
+ // The following operations are
+ // then applied, in order, to the new path:
+ // 6a) All occurrences of "./", where "." is a complete path
+ // segment, are removed.
+ // 6b) If the path ends with "." as a complete path segment,
+ // that "." is removed.
+ path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');
+ // 6c) All occurrences of "<segment>/../", where <segment> is a
+ // complete path segment not equal to "..", are removed.
+ // Removal of these path segments is performed iteratively,
+ // removing the leftmost matching pattern on each iteration,
+ // until no matching pattern remains.
+ // 6d) If the path ends with "<segment>/..", where <segment> is a
+ // complete path segment not equal to "..", that
+ // "<segment>/.." is removed.
+ while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {} // jshint ignore:line
+ return path.split('').reverse().join('');
+ },
+ buildURLFromParts: function buildURLFromParts(parts) {
+ return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;
+ }
+ };
+
+ /* jshint ignore:start */
+ module.exports = URLToolkit;
+ })(commonjsGlobal);
+ /* jshint ignore:end */
+ });
+
+ var classCallCheck$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var _extends$1 = Object.assign || function (target) {
+ for (var i = 1; i < arguments.length; i++) {
+ var source = arguments[i];
+
+ for (var key in source) {
+ if (Object.prototype.hasOwnProperty.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+
+ return target;
+ };
+
+ var inherits$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === "undefined" ? "undefined" : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream = function () {
+ function Stream() {
+ classCallCheck$1(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+ var i = void 0;
+ var length = void 0;
+ var args = void 0;
+
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = Array.prototype.slice.call(arguments, 1);
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file m3u8/line-stream.js
+ */
+ /**
+ * A stream that buffers string input and generates a `data` event for each
+ * line.
+ *
+ * @class LineStream
+ * @extends Stream
+ */
+
+ var LineStream = function (_Stream) {
+ inherits$1(LineStream, _Stream);
+
+ function LineStream() {
+ classCallCheck$1(this, LineStream);
+
+ var _this = possibleConstructorReturn$1(this, _Stream.call(this));
+
+ _this.buffer = '';
+ return _this;
+ }
+
+ /**
+ * Add new data to be parsed.
+ *
+ * @param {String} data the text to process
+ */
+
+ LineStream.prototype.push = function push(data) {
+ var nextNewline = void 0;
+
+ this.buffer += data;
+ nextNewline = this.buffer.indexOf('\n');
+
+ for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\n')) {
+ this.trigger('data', this.buffer.substring(0, nextNewline));
+ this.buffer = this.buffer.substring(nextNewline + 1);
+ }
+ };
+
+ return LineStream;
+ }(Stream);
+
+ /**
+ * @file m3u8/parse-stream.js
+ */
+ /**
+ * "forgiving" attribute list psuedo-grammar:
+ * attributes -> keyvalue (',' keyvalue)*
+ * keyvalue -> key '=' value
+ * key -> [^=]*
+ * value -> '"' [^"]* '"' | [^,]*
+ */
+ var attributeSeparator = function attributeSeparator() {
+ var key = '[^=]*';
+ var value = '"[^"]*"|[^,]*';
+ var keyvalue = '(?:' + key + ')=(?:' + value + ')';
+
+ return new RegExp('(?:^|,)(' + keyvalue + ')');
+ };
+
+ /**
+ * Parse attributes from a line given the seperator
+ *
+ * @param {String} attributes the attibute line to parse
+ */
+ var parseAttributes = function parseAttributes(attributes) {
+ // split the string using attributes as the separator
+ var attrs = attributes.split(attributeSeparator());
+ var result = {};
+ var i = attrs.length;
+ var attr = void 0;
+
+ while (i--) {
+ // filter out unmatched portions of the string
+ if (attrs[i] === '') {
+ continue;
+ }
+
+ // split the key and value
+ attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1);
+ // trim whitespace and remove optional quotes around the value
+ attr[0] = attr[0].replace(/^\s+|\s+$/g, '');
+ attr[1] = attr[1].replace(/^\s+|\s+$/g, '');
+ attr[1] = attr[1].replace(/^['"](.*)['"]$/g, '$1');
+ result[attr[0]] = attr[1];
+ }
+ return result;
+ };
+
+ /**
+ * A line-level M3U8 parser event stream. It expects to receive input one
+ * line at a time and performs a context-free parse of its contents. A stream
+ * interpretation of a manifest can be useful if the manifest is expected to
+ * be too large to fit comfortably into memory or the entirety of the input
+ * is not immediately available. Otherwise, it's probably much easier to work
+ * with a regular `Parser` object.
+ *
+ * Produces `data` events with an object that captures the parser's
+ * interpretation of the input. That object has a property `tag` that is one
+ * of `uri`, `comment`, or `tag`. URIs only have a single additional
+ * property, `line`, which captures the entirety of the input without
+ * interpretation. Comments similarly have a single additional property
+ * `text` which is the input without the leading `#`.
+ *
+ * Tags always have a property `tagType` which is the lower-cased version of
+ * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,
+ * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized
+ * tags are given the tag type `unknown` and a single additional property
+ * `data` with the remainder of the input.
+ *
+ * @class ParseStream
+ * @extends Stream
+ */
+
+ var ParseStream = function (_Stream) {
+ inherits$1(ParseStream, _Stream);
+
+ function ParseStream() {
+ classCallCheck$1(this, ParseStream);
+
+ var _this = possibleConstructorReturn$1(this, _Stream.call(this));
+
+ _this.customParsers = [];
+ return _this;
+ }
+
+ /**
+ * Parses an additional line of input.
+ *
+ * @param {String} line a single line of an M3U8 file to parse
+ */
+
+ ParseStream.prototype.push = function push(line) {
+ var match = void 0;
+ var event = void 0;
+
+ // strip whitespace
+ line = line.replace(/^[\u0000\s]+|[\u0000\s]+$/g, '');
+ if (line.length === 0) {
+ // ignore empty lines
+ return;
+ }
+
+ // URIs
+ if (line[0] !== '#') {
+ this.trigger('data', {
+ type: 'uri',
+ uri: line
+ });
+ return;
+ }
+
+ for (var i = 0; i < this.customParsers.length; i++) {
+ if (this.customParsers[i].call(this, line)) {
+ return;
+ }
+ }
+
+ // Comments
+ if (line.indexOf('#EXT') !== 0) {
+ this.trigger('data', {
+ type: 'comment',
+ text: line.slice(1)
+ });
+ return;
+ }
+
+ // strip off any carriage returns here so the regex matching
+ // doesn't have to account for them.
+ line = line.replace('\r', '');
+
+ // Tags
+ match = /^#EXTM3U/.exec(line);
+ if (match) {
+ this.trigger('data', {
+ type: 'tag',
+ tagType: 'm3u'
+ });
+ return;
+ }
+ match = /^#EXTINF:?([0-9\.]*)?,?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'inf'
+ };
+ if (match[1]) {
+ event.duration = parseFloat(match[1]);
+ }
+ if (match[2]) {
+ event.title = match[2];
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'targetduration'
+ };
+ if (match[1]) {
+ event.duration = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#ZEN-TOTAL-DURATION:?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'totalduration'
+ };
+ if (match[1]) {
+ event.duration = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'version'
+ };
+ if (match[1]) {
+ event.version = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-MEDIA-SEQUENCE:?(\-?[0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'media-sequence'
+ };
+ if (match[1]) {
+ event.number = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\-?[0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'discontinuity-sequence'
+ };
+ if (match[1]) {
+ event.number = parseInt(match[1], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'playlist-type'
+ };
+ if (match[1]) {
+ event.playlistType = match[1];
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-BYTERANGE:?([0-9.]*)?@?([0-9.]*)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'byterange'
+ };
+ if (match[1]) {
+ event.length = parseInt(match[1], 10);
+ }
+ if (match[2]) {
+ event.offset = parseInt(match[2], 10);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'allow-cache'
+ };
+ if (match[1]) {
+ event.allowed = !/NO/.test(match[1]);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-MAP:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'map'
+ };
+
+ if (match[1]) {
+ var attributes = parseAttributes(match[1]);
+
+ if (attributes.URI) {
+ event.uri = attributes.URI;
+ }
+ if (attributes.BYTERANGE) {
+ var _attributes$BYTERANGE = attributes.BYTERANGE.split('@'),
+ length = _attributes$BYTERANGE[0],
+ offset = _attributes$BYTERANGE[1];
+
+ event.byterange = {};
+ if (length) {
+ event.byterange.length = parseInt(length, 10);
+ }
+ if (offset) {
+ event.byterange.offset = parseInt(offset, 10);
+ }
+ }
+ }
+
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'stream-inf'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+
+ if (event.attributes.RESOLUTION) {
+ var split = event.attributes.RESOLUTION.split('x');
+ var resolution = {};
+
+ if (split[0]) {
+ resolution.width = parseInt(split[0], 10);
+ }
+ if (split[1]) {
+ resolution.height = parseInt(split[1], 10);
+ }
+ event.attributes.RESOLUTION = resolution;
+ }
+ if (event.attributes.BANDWIDTH) {
+ event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);
+ }
+ if (event.attributes['PROGRAM-ID']) {
+ event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);
+ }
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-MEDIA:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'media'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-ENDLIST/.exec(line);
+ if (match) {
+ this.trigger('data', {
+ type: 'tag',
+ tagType: 'endlist'
+ });
+ return;
+ }
+ match = /^#EXT-X-DISCONTINUITY/.exec(line);
+ if (match) {
+ this.trigger('data', {
+ type: 'tag',
+ tagType: 'discontinuity'
+ });
+ return;
+ }
+ match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'program-date-time'
+ };
+ if (match[1]) {
+ event.dateTimeString = match[1];
+ event.dateTimeObject = new Date(match[1]);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-KEY:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'key'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+ // parse the IV string into a Uint32Array
+ if (event.attributes.IV) {
+ if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {
+ event.attributes.IV = event.attributes.IV.substring(2);
+ }
+
+ event.attributes.IV = event.attributes.IV.match(/.{8}/g);
+ event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);
+ event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);
+ event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);
+ event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);
+ event.attributes.IV = new Uint32Array(event.attributes.IV);
+ }
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-START:?(.*)$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'start'
+ };
+ if (match[1]) {
+ event.attributes = parseAttributes(match[1]);
+
+ event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);
+ event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'cue-out-cont'
+ };
+ if (match[1]) {
+ event.data = match[1];
+ } else {
+ event.data = '';
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'cue-out'
+ };
+ if (match[1]) {
+ event.data = match[1];
+ } else {
+ event.data = '';
+ }
+ this.trigger('data', event);
+ return;
+ }
+ match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(line);
+ if (match) {
+ event = {
+ type: 'tag',
+ tagType: 'cue-in'
+ };
+ if (match[1]) {
+ event.data = match[1];
+ } else {
+ event.data = '';
+ }
+ this.trigger('data', event);
+ return;
+ }
+
+ // unknown tag type
+ this.trigger('data', {
+ type: 'tag',
+ data: line.slice(4)
+ });
+ };
+
+ /**
+ * Add a parser for custom headers
+ *
+ * @param {Object} options a map of options for the added parser
+ * @param {RegExp} options.expression a regular expression to match the custom header
+ * @param {string} options.customType the custom type to register to the output
+ * @param {Function} [options.dataParser] function to parse the line into an object
+ * @param {boolean} [options.segment] should tag data be attached to the segment object
+ */
+
+ ParseStream.prototype.addParser = function addParser(_ref) {
+ var _this2 = this;
+
+ var expression = _ref.expression,
+ customType = _ref.customType,
+ dataParser = _ref.dataParser,
+ segment = _ref.segment;
+
+ if (typeof dataParser !== 'function') {
+ dataParser = function dataParser(line) {
+ return line;
+ };
+ }
+ this.customParsers.push(function (line) {
+ var match = expression.exec(line);
+
+ if (match) {
+ _this2.trigger('data', {
+ type: 'custom',
+ data: dataParser(line),
+ customType: customType,
+ segment: segment
+ });
+ return true;
+ }
+ });
+ };
+
+ return ParseStream;
+ }(Stream);
+
+ /**
+ * @file m3u8/parser.js
+ */
+ /**
+ * A parser for M3U8 files. The current interpretation of the input is
+ * exposed as a property `manifest` on parser objects. It's just two lines to
+ * create and parse a manifest once you have the contents available as a string:
+ *
+ * ```js
+ * var parser = new m3u8.Parser();
+ * parser.push(xhr.responseText);
+ * ```
+ *
+ * New input can later be applied to update the manifest object by calling
+ * `push` again.
+ *
+ * The parser attempts to create a usable manifest object even if the
+ * underlying input is somewhat nonsensical. It emits `info` and `warning`
+ * events during the parse if it encounters input that seems invalid or
+ * requires some property of the manifest object to be defaulted.
+ *
+ * @class Parser
+ * @extends Stream
+ */
+
+ var Parser = function (_Stream) {
+ inherits$1(Parser, _Stream);
+
+ function Parser() {
+ classCallCheck$1(this, Parser);
+
+ var _this = possibleConstructorReturn$1(this, _Stream.call(this));
+
+ _this.lineStream = new LineStream();
+ _this.parseStream = new ParseStream();
+ _this.lineStream.pipe(_this.parseStream);
+
+ /* eslint-disable consistent-this */
+ var self = _this;
+ /* eslint-enable consistent-this */
+ var uris = [];
+ var currentUri = {};
+ // if specified, the active EXT-X-MAP definition
+ var currentMap = void 0;
+ // if specified, the active decryption key
+ var _key = void 0;
+ var noop = function noop() {};
+ var defaultMediaGroups = {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ };
+ // group segments into numbered timelines delineated by discontinuities
+ var currentTimeline = 0;
+
+ // the manifest is empty until the parse stream begins delivering data
+ _this.manifest = {
+ allowCache: true,
+ discontinuityStarts: [],
+ segments: []
+ };
+
+ // update the manifest with the m3u8 entry from the parse stream
+ _this.parseStream.on('data', function (entry) {
+ var mediaGroup = void 0;
+ var rendition = void 0;
+
+ ({
+ tag: function tag() {
+ // switch based on the tag type
+ (({
+ 'allow-cache': function allowCache() {
+ this.manifest.allowCache = entry.allowed;
+ if (!('allowed' in entry)) {
+ this.trigger('info', {
+ message: 'defaulting allowCache to YES'
+ });
+ this.manifest.allowCache = true;
+ }
+ },
+ byterange: function byterange() {
+ var byterange = {};
+
+ if ('length' in entry) {
+ currentUri.byterange = byterange;
+ byterange.length = entry.length;
+
+ if (!('offset' in entry)) {
+ this.trigger('info', {
+ message: 'defaulting offset to zero'
+ });
+ entry.offset = 0;
+ }
+ }
+ if ('offset' in entry) {
+ currentUri.byterange = byterange;
+ byterange.offset = entry.offset;
+ }
+ },
+ endlist: function endlist() {
+ this.manifest.endList = true;
+ },
+ inf: function inf() {
+ if (!('mediaSequence' in this.manifest)) {
+ this.manifest.mediaSequence = 0;
+ this.trigger('info', {
+ message: 'defaulting media sequence to zero'
+ });
+ }
+ if (!('discontinuitySequence' in this.manifest)) {
+ this.manifest.discontinuitySequence = 0;
+ this.trigger('info', {
+ message: 'defaulting discontinuity sequence to zero'
+ });
+ }
+ if (entry.duration > 0) {
+ currentUri.duration = entry.duration;
+ }
+
+ if (entry.duration === 0) {
+ currentUri.duration = 0.01;
+ this.trigger('info', {
+ message: 'updating zero segment duration to a small value'
+ });
+ }
+
+ this.manifest.segments = uris;
+ },
+ key: function key() {
+ if (!entry.attributes) {
+ this.trigger('warn', {
+ message: 'ignoring key declaration without attribute list'
+ });
+ return;
+ }
+ // clear the active encryption key
+ if (entry.attributes.METHOD === 'NONE') {
+ _key = null;
+ return;
+ }
+ if (!entry.attributes.URI) {
+ this.trigger('warn', {
+ message: 'ignoring key declaration without URI'
+ });
+ return;
+ }
+ if (!entry.attributes.METHOD) {
+ this.trigger('warn', {
+ message: 'defaulting key method to AES-128'
+ });
+ }
+
+ // setup an encryption key for upcoming segments
+ _key = {
+ method: entry.attributes.METHOD || 'AES-128',
+ uri: entry.attributes.URI
+ };
+
+ if (typeof entry.attributes.IV !== 'undefined') {
+ _key.iv = entry.attributes.IV;
+ }
+ },
+ 'media-sequence': function mediaSequence() {
+ if (!isFinite(entry.number)) {
+ this.trigger('warn', {
+ message: 'ignoring invalid media sequence: ' + entry.number
+ });
+ return;
+ }
+ this.manifest.mediaSequence = entry.number;
+ },
+ 'discontinuity-sequence': function discontinuitySequence() {
+ if (!isFinite(entry.number)) {
+ this.trigger('warn', {
+ message: 'ignoring invalid discontinuity sequence: ' + entry.number
+ });
+ return;
+ }
+ this.manifest.discontinuitySequence = entry.number;
+ currentTimeline = entry.number;
+ },
+ 'playlist-type': function playlistType() {
+ if (!/VOD|EVENT/.test(entry.playlistType)) {
+ this.trigger('warn', {
+ message: 'ignoring unknown playlist type: ' + entry.playlist
+ });
+ return;
+ }
+ this.manifest.playlistType = entry.playlistType;
+ },
+ map: function map() {
+ currentMap = {};
+ if (entry.uri) {
+ currentMap.uri = entry.uri;
+ }
+ if (entry.byterange) {
+ currentMap.byterange = entry.byterange;
+ }
+ },
+ 'stream-inf': function streamInf() {
+ this.manifest.playlists = uris;
+ this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
+
+ if (!entry.attributes) {
+ this.trigger('warn', {
+ message: 'ignoring empty stream-inf attributes'
+ });
+ return;
+ }
+
+ if (!currentUri.attributes) {
+ currentUri.attributes = {};
+ }
+ _extends$1(currentUri.attributes, entry.attributes);
+ },
+ media: function media() {
+ this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
+
+ if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {
+ this.trigger('warn', {
+ message: 'ignoring incomplete or missing media group'
+ });
+ return;
+ }
+
+ // find the media group, creating defaults as necessary
+ var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];
+
+ mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};
+ mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']];
+
+ // collect the rendition metadata
+ rendition = {
+ 'default': /yes/i.test(entry.attributes.DEFAULT)
+ };
+ if (rendition['default']) {
+ rendition.autoselect = true;
+ } else {
+ rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);
+ }
+ if (entry.attributes.LANGUAGE) {
+ rendition.language = entry.attributes.LANGUAGE;
+ }
+ if (entry.attributes.URI) {
+ rendition.uri = entry.attributes.URI;
+ }
+ if (entry.attributes['INSTREAM-ID']) {
+ rendition.instreamId = entry.attributes['INSTREAM-ID'];
+ }
+ if (entry.attributes.CHARACTERISTICS) {
+ rendition.characteristics = entry.attributes.CHARACTERISTICS;
+ }
+ if (entry.attributes.FORCED) {
+ rendition.forced = /yes/i.test(entry.attributes.FORCED);
+ }
+
+ // insert the new rendition
+ mediaGroup[entry.attributes.NAME] = rendition;
+ },
+ discontinuity: function discontinuity() {
+ currentTimeline += 1;
+ currentUri.discontinuity = true;
+ this.manifest.discontinuityStarts.push(uris.length);
+ },
+ 'program-date-time': function programDateTime() {
+ if (typeof this.manifest.dateTimeString === 'undefined') {
+ // PROGRAM-DATE-TIME is a media-segment tag, but for backwards
+ // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag
+ // to the manifest object
+ // TODO: Consider removing this in future major version
+ this.manifest.dateTimeString = entry.dateTimeString;
+ this.manifest.dateTimeObject = entry.dateTimeObject;
+ }
+
+ currentUri.dateTimeString = entry.dateTimeString;
+ currentUri.dateTimeObject = entry.dateTimeObject;
+ },
+ targetduration: function targetduration() {
+ if (!isFinite(entry.duration) || entry.duration < 0) {
+ this.trigger('warn', {
+ message: 'ignoring invalid target duration: ' + entry.duration
+ });
+ return;
+ }
+ this.manifest.targetDuration = entry.duration;
+ },
+ totalduration: function totalduration() {
+ if (!isFinite(entry.duration) || entry.duration < 0) {
+ this.trigger('warn', {
+ message: 'ignoring invalid total duration: ' + entry.duration
+ });
+ return;
+ }
+ this.manifest.totalDuration = entry.duration;
+ },
+ start: function start() {
+ if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {
+ this.trigger('warn', {
+ message: 'ignoring start declaration without appropriate attribute list'
+ });
+ return;
+ }
+ this.manifest.start = {
+ timeOffset: entry.attributes['TIME-OFFSET'],
+ precise: entry.attributes.PRECISE
+ };
+ },
+ 'cue-out': function cueOut() {
+ currentUri.cueOut = entry.data;
+ },
+ 'cue-out-cont': function cueOutCont() {
+ currentUri.cueOutCont = entry.data;
+ },
+ 'cue-in': function cueIn() {
+ currentUri.cueIn = entry.data;
+ }
+ })[entry.tagType] || noop).call(self);
+ },
+ uri: function uri() {
+ currentUri.uri = entry.uri;
+ uris.push(currentUri);
+
+ // if no explicit duration was declared, use the target duration
+ if (this.manifest.targetDuration && !('duration' in currentUri)) {
+ this.trigger('warn', {
+ message: 'defaulting segment duration to the target duration'
+ });
+ currentUri.duration = this.manifest.targetDuration;
+ }
+ // annotate with encryption information, if necessary
+ if (_key) {
+ currentUri.key = _key;
+ }
+ currentUri.timeline = currentTimeline;
+ // annotate with initialization segment information, if necessary
+ if (currentMap) {
+ currentUri.map = currentMap;
+ }
+
+ // prepare for the next URI
+ currentUri = {};
+ },
+ comment: function comment() {
+ // comments are not important for playback
+ },
+ custom: function custom() {
+ // if this is segment-level data attach the output to the segment
+ if (entry.segment) {
+ currentUri.custom = currentUri.custom || {};
+ currentUri.custom[entry.customType] = entry.data;
+ // if this is manifest-level data attach to the top level manifest object
+ } else {
+ this.manifest.custom = this.manifest.custom || {};
+ this.manifest.custom[entry.customType] = entry.data;
+ }
+ }
+ })[entry.type].call(self);
+ });
+ return _this;
+ }
+
+ /**
+ * Parse the input string and update the manifest object.
+ *
+ * @param {String} chunk a potentially incomplete portion of the manifest
+ */
+
+ Parser.prototype.push = function push(chunk) {
+ this.lineStream.push(chunk);
+ };
+
+ /**
+ * Flush any remaining input. This can be handy if the last line of an M3U8
+ * manifest did not contain a trailing newline but the file has been
+ * completely received.
+ */
+
+ Parser.prototype.end = function end() {
+ // flush any buffered input
+ this.lineStream.push('\n');
+ };
+ /**
+ * Add an additional parser for non-standard tags
+ *
+ * @param {Object} options a map of options for the added parser
+ * @param {RegExp} options.expression a regular expression to match the custom header
+ * @param {string} options.type the type to register to the output
+ * @param {Function} [options.dataParser] function to parse the line into an object
+ * @param {boolean} [options.segment] should tag data be attached to the segment object
+ */
+
+ Parser.prototype.addParser = function addParser(options) {
+ this.parseStream.addParser(options);
+ };
+
+ return Parser;
+ }(Stream);
+
+ /**
+ * mpd-parser
+ * @version 0.6.1
+ * @copyright 2018 Brightcove, Inc
+ * @license Apache-2.0
+ */
+
+ var formatAudioPlaylist = function formatAudioPlaylist(_ref) {
+ var _attributes;
+
+ var attributes = _ref.attributes,
+ segments = _ref.segments;
+
+ var playlist = {
+ attributes: (_attributes = {
+ NAME: attributes.id,
+ BANDWIDTH: attributes.bandwidth,
+ CODECS: attributes.codecs
+ }, _attributes['PROGRAM-ID'] = 1, _attributes),
+ uri: '',
+ endList: (attributes.type || 'static') === 'static',
+ timeline: attributes.periodIndex,
+ resolvedUri: '',
+ targetDuration: attributes.duration,
+ segments: segments,
+ mediaSequence: segments.length ? segments[0].number : 1
+ };
+
+ if (attributes.contentProtection) {
+ playlist.contentProtection = attributes.contentProtection;
+ }
+
+ return playlist;
+ };
+
+ var formatVttPlaylist = function formatVttPlaylist(_ref2) {
+ var _attributes2;
+
+ var attributes = _ref2.attributes,
+ segments = _ref2.segments;
+
+ if (typeof segments === 'undefined') {
+ // vtt tracks may use single file in BaseURL
+ segments = [{
+ uri: attributes.baseUrl,
+ timeline: attributes.periodIndex,
+ resolvedUri: attributes.baseUrl || '',
+ duration: attributes.sourceDuration,
+ number: 0
+ }];
+ // targetDuration should be the same duration as the only segment
+ attributes.duration = attributes.sourceDuration;
+ }
+ return {
+ attributes: (_attributes2 = {
+ NAME: attributes.id,
+ BANDWIDTH: attributes.bandwidth
+ }, _attributes2['PROGRAM-ID'] = 1, _attributes2),
+ uri: '',
+ endList: (attributes.type || 'static') === 'static',
+ timeline: attributes.periodIndex,
+ resolvedUri: attributes.baseUrl || '',
+ targetDuration: attributes.duration,
+ segments: segments,
+ mediaSequence: segments.length ? segments[0].number : 1
+ };
+ };
+
+ var organizeAudioPlaylists = function organizeAudioPlaylists(playlists) {
+ return playlists.reduce(function (a, playlist) {
+ var role = playlist.attributes.role && playlist.attributes.role.value || 'main';
+ var language = playlist.attributes.lang || '';
+
+ var label = 'main';
+
+ if (language) {
+ label = playlist.attributes.lang + ' (' + role + ')';
+ }
+
+ // skip if we already have the highest quality audio for a language
+ if (a[label] && a[label].playlists[0].attributes.BANDWIDTH > playlist.attributes.bandwidth) {
+ return a;
+ }
+
+ a[label] = {
+ language: language,
+ autoselect: true,
+ 'default': role === 'main',
+ playlists: [formatAudioPlaylist(playlist)],
+ uri: ''
+ };
+
+ return a;
+ }, {});
+ };
+
+ var organizeVttPlaylists = function organizeVttPlaylists(playlists) {
+ return playlists.reduce(function (a, playlist) {
+ var label = playlist.attributes.lang || 'text';
+
+ // skip if we already have subtitles
+ if (a[label]) {
+ return a;
+ }
+
+ a[label] = {
+ language: label,
+ 'default': false,
+ autoselect: false,
+ playlists: [formatVttPlaylist(playlist)],
+ uri: ''
+ };
+
+ return a;
+ }, {});
+ };
+
+ var formatVideoPlaylist = function formatVideoPlaylist(_ref3) {
+ var _attributes3;
+
+ var attributes = _ref3.attributes,
+ segments = _ref3.segments;
+
+ var playlist = {
+ attributes: (_attributes3 = {
+ NAME: attributes.id,
+ AUDIO: 'audio',
+ SUBTITLES: 'subs',
+ RESOLUTION: {
+ width: attributes.width,
+ height: attributes.height
+ },
+ CODECS: attributes.codecs,
+ BANDWIDTH: attributes.bandwidth
+ }, _attributes3['PROGRAM-ID'] = 1, _attributes3),
+ uri: '',
+ endList: (attributes.type || 'static') === 'static',
+ timeline: attributes.periodIndex,
+ resolvedUri: '',
+ targetDuration: attributes.duration,
+ segments: segments,
+ mediaSequence: segments.length ? segments[0].number : 1
+ };
+
+ if (attributes.contentProtection) {
+ playlist.contentProtection = attributes.contentProtection;
+ }
+
+ return playlist;
+ };
+
+ var toM3u8 = function toM3u8(dashPlaylists) {
+ var _mediaGroups;
+
+ if (!dashPlaylists.length) {
+ return {};
+ }
+
+ // grab all master attributes
+ var _dashPlaylists$0$attr = dashPlaylists[0].attributes,
+ duration = _dashPlaylists$0$attr.sourceDuration,
+ _dashPlaylists$0$attr2 = _dashPlaylists$0$attr.minimumUpdatePeriod,
+ minimumUpdatePeriod = _dashPlaylists$0$attr2 === undefined ? 0 : _dashPlaylists$0$attr2;
+
+ var videoOnly = function videoOnly(_ref4) {
+ var attributes = _ref4.attributes;
+ return attributes.mimeType === 'video/mp4' || attributes.contentType === 'video';
+ };
+ var audioOnly = function audioOnly(_ref5) {
+ var attributes = _ref5.attributes;
+ return attributes.mimeType === 'audio/mp4' || attributes.contentType === 'audio';
+ };
+ var vttOnly = function vttOnly(_ref6) {
+ var attributes = _ref6.attributes;
+ return attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';
+ };
+
+ var videoPlaylists = dashPlaylists.filter(videoOnly).map(formatVideoPlaylist);
+ var audioPlaylists = dashPlaylists.filter(audioOnly);
+ var vttPlaylists = dashPlaylists.filter(vttOnly);
+
+ var master = {
+ allowCache: true,
+ discontinuityStarts: [],
+ segments: [],
+ endList: true,
+ mediaGroups: (_mediaGroups = {
+ AUDIO: {},
+ VIDEO: {}
+ }, _mediaGroups['CLOSED-CAPTIONS'] = {}, _mediaGroups.SUBTITLES = {}, _mediaGroups),
+ uri: '',
+ duration: duration,
+ playlists: videoPlaylists,
+ minimumUpdatePeriod: minimumUpdatePeriod * 1000
+ };
+
+ if (audioPlaylists.length) {
+ master.mediaGroups.AUDIO.audio = organizeAudioPlaylists(audioPlaylists);
+ }
+
+ if (vttPlaylists.length) {
+ master.mediaGroups.SUBTITLES.subs = organizeVttPlaylists(vttPlaylists);
+ }
+
+ return master;
+ };
+
+ var _typeof$1 = typeof Symbol === "function" && _typeof(Symbol.iterator) === "symbol" ? function (obj) {
+ return typeof obj === 'undefined' ? 'undefined' : _typeof(obj);
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj === 'undefined' ? 'undefined' : _typeof(obj);
+ };
+
+ var isObject$1 = function isObject(obj) {
+ return !!obj && (typeof obj === 'undefined' ? 'undefined' : _typeof$1(obj)) === 'object';
+ };
+
+ var merge = function merge() {
+ for (var _len = arguments.length, objects = Array(_len), _key = 0; _key < _len; _key++) {
+ objects[_key] = arguments[_key];
+ }
+
+ return objects.reduce(function (result, source) {
+
+ Object.keys(source).forEach(function (key) {
+
+ if (Array.isArray(result[key]) && Array.isArray(source[key])) {
+ result[key] = result[key].concat(source[key]);
+ } else if (isObject$1(result[key]) && isObject$1(source[key])) {
+ result[key] = merge(result[key], source[key]);
+ } else {
+ result[key] = source[key];
+ }
+ });
+ return result;
+ }, {});
+ };
+
+ var resolveUrl = function resolveUrl(baseUrl, relativeUrl) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeUrl)) {
+ return relativeUrl;
+ }
+
+ // if the base URL is relative then combine with the current location
+ if (!/\/\//i.test(baseUrl)) {
+ baseUrl = urlToolkit.buildAbsoluteURL(window_1.location.href, baseUrl);
+ }
+
+ return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
+ };
+
+ /**
+ * @typedef {Object} SingleUri
+ * @property {string} uri - relative location of segment
+ * @property {string} resolvedUri - resolved location of segment
+ * @property {Object} byterange - Object containing information on how to make byte range
+ * requests following byte-range-spec per RFC2616.
+ * @property {String} byterange.length - length of range request
+ * @property {String} byterange.offset - byte offset of range request
+ *
+ * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1
+ */
+
+ /**
+ * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object
+ * that conforms to how m3u8-parser is structured
+ *
+ * @see https://github.com/videojs/m3u8-parser
+ *
+ * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes
+ * @param {string} source - source url for segment
+ * @param {string} range - optional range used for range calls, follows
+ * @return {SingleUri} full segment information transformed into a format similar
+ * to m3u8-parser
+ */
+ var urlTypeToSegment = function urlTypeToSegment(_ref) {
+ var _ref$baseUrl = _ref.baseUrl,
+ baseUrl = _ref$baseUrl === undefined ? '' : _ref$baseUrl,
+ _ref$source = _ref.source,
+ source = _ref$source === undefined ? '' : _ref$source,
+ _ref$range = _ref.range,
+ range = _ref$range === undefined ? '' : _ref$range;
+
+ var init = {
+ uri: source,
+ resolvedUri: resolveUrl(baseUrl || '', source)
+ };
+
+ if (range) {
+ var ranges = range.split('-');
+ var startRange = parseInt(ranges[0], 10);
+ var endRange = parseInt(ranges[1], 10);
+
+ init.byterange = {
+ length: endRange - startRange,
+ offset: startRange
+ };
+ }
+
+ return init;
+ };
+
+ /**
+ * Calculates the R (repetition) value for a live stream (for the final segment
+ * in a manifest where the r value is negative 1)
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {number} time
+ * current time (typically the total time up until the final segment)
+ * @param {number} duration
+ * duration property for the given <S />
+ *
+ * @return {number}
+ * R value to reach the end of the given period
+ */
+ var getLiveRValue = function getLiveRValue(attributes, time, duration) {
+ var NOW = attributes.NOW,
+ clientOffset = attributes.clientOffset,
+ availabilityStartTime = attributes.availabilityStartTime,
+ _attributes$timescale = attributes.timescale,
+ timescale = _attributes$timescale === undefined ? 1 : _attributes$timescale,
+ _attributes$start = attributes.start,
+ start = _attributes$start === undefined ? 0 : _attributes$start,
+ _attributes$minimumUp = attributes.minimumUpdatePeriod,
+ minimumUpdatePeriod = _attributes$minimumUp === undefined ? 0 : _attributes$minimumUp;
+
+ var now = (NOW + clientOffset) / 1000;
+ var periodStartWC = availabilityStartTime + start;
+ var periodEndWC = now + minimumUpdatePeriod;
+ var periodDuration = periodEndWC - periodStartWC;
+
+ return Math.ceil((periodDuration * timescale - time) / duration);
+ };
+
+ /**
+ * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment
+ * timing and duration
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ *
+ * @return {{number: number, duration: number, time: number, timeline: number}[]}
+ * List of Objects with segment timing and duration info
+ */
+ var parseByTimeline = function parseByTimeline(attributes, segmentTimeline) {
+ var _attributes$type = attributes.type,
+ type = _attributes$type === undefined ? 'static' : _attributes$type,
+ _attributes$minimumUp2 = attributes.minimumUpdatePeriod,
+ minimumUpdatePeriod = _attributes$minimumUp2 === undefined ? 0 : _attributes$minimumUp2,
+ _attributes$media = attributes.media,
+ media = _attributes$media === undefined ? '' : _attributes$media,
+ sourceDuration = attributes.sourceDuration,
+ _attributes$timescale2 = attributes.timescale,
+ timescale = _attributes$timescale2 === undefined ? 1 : _attributes$timescale2,
+ _attributes$startNumb = attributes.startNumber,
+ startNumber = _attributes$startNumb === undefined ? 1 : _attributes$startNumb,
+ timeline = attributes.periodIndex;
+
+ var segments = [];
+ var time = -1;
+
+ for (var sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {
+ var S = segmentTimeline[sIndex];
+ var duration = S.d;
+ var repeat = S.r || 0;
+ var segmentTime = S.t || 0;
+
+ if (time < 0) {
+ // first segment
+ time = segmentTime;
+ }
+
+ if (segmentTime && segmentTime > time) {
+ // discontinuity
+
+ // TODO: How to handle this type of discontinuity
+ // timeline++ here would treat it like HLS discontuity and content would
+ // get appended without gap
+ // E.G.
+ // <S t="0" d="1" />
+ // <S d="1" />
+ // <S d="1" />
+ // <S t="5" d="1" />
+ // would have $Time$ values of [0, 1, 2, 5]
+ // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)
+ // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)
+ // does the value of sourceDuration consider this when calculating arbitrary
+ // negative @r repeat value?
+ // E.G. Same elements as above with this added at the end
+ // <S d="1" r="-1" />
+ // with a sourceDuration of 10
+ // Would the 2 gaps be included in the time duration calculations resulting in
+ // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments
+ // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?
+
+ time = segmentTime;
+ }
+
+ var count = void 0;
+
+ if (repeat < 0) {
+ var nextS = sIndex + 1;
+
+ if (nextS === segmentTimeline.length) {
+ // last segment
+ if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {
+ count = getLiveRValue(attributes, time, duration);
+ } else {
+ // TODO: This may be incorrect depending on conclusion of TODO above
+ count = (sourceDuration * timescale - time) / duration;
+ }
+ } else {
+ count = (segmentTimeline[nextS].t - time) / duration;
+ }
+ } else {
+ count = repeat + 1;
+ }
+
+ var end = startNumber + segments.length + count;
+ var number = startNumber + segments.length;
+
+ while (number < end) {
+ segments.push({ number: number, duration: duration / timescale, time: time, timeline: timeline });
+ time += duration;
+ number++;
+ }
+ }
+
+ return segments;
+ };
+
+ var range = function range(start, end) {
+ var result = [];
+
+ for (var i = start; i < end; i++) {
+ result.push(i);
+ }
+
+ return result;
+ };
+
+ var flatten = function flatten(lists) {
+ return lists.reduce(function (x, y) {
+ return x.concat(y);
+ }, []);
+ };
+
+ var from = function from(list) {
+ if (!list.length) {
+ return [];
+ }
+
+ var result = [];
+
+ for (var i = 0; i < list.length; i++) {
+ result.push(list[i]);
+ }
+
+ return result;
+ };
+
+ /**
+ * Functions for calculating the range of available segments in static and dynamic
+ * manifests.
+ */
+ var segmentRange = {
+ /**
+ * Returns the entire range of available segments for a static MPD
+ *
+ * @param {Object} attributes
+ * Inheritied MPD attributes
+ * @return {{ start: number, end: number }}
+ * The start and end numbers for available segments
+ */
+ 'static': function _static(attributes) {
+ var duration = attributes.duration,
+ _attributes$timescale = attributes.timescale,
+ timescale = _attributes$timescale === undefined ? 1 : _attributes$timescale,
+ sourceDuration = attributes.sourceDuration;
+
+ return {
+ start: 0,
+ end: Math.ceil(sourceDuration / (duration / timescale))
+ };
+ },
+
+ /**
+ * Returns the current live window range of available segments for a dynamic MPD
+ *
+ * @param {Object} attributes
+ * Inheritied MPD attributes
+ * @return {{ start: number, end: number }}
+ * The start and end numbers for available segments
+ */
+ dynamic: function dynamic(attributes) {
+ var NOW = attributes.NOW,
+ clientOffset = attributes.clientOffset,
+ availabilityStartTime = attributes.availabilityStartTime,
+ _attributes$timescale2 = attributes.timescale,
+ timescale = _attributes$timescale2 === undefined ? 1 : _attributes$timescale2,
+ duration = attributes.duration,
+ _attributes$start = attributes.start,
+ start = _attributes$start === undefined ? 0 : _attributes$start,
+ _attributes$minimumUp = attributes.minimumUpdatePeriod,
+ minimumUpdatePeriod = _attributes$minimumUp === undefined ? 0 : _attributes$minimumUp,
+ _attributes$timeShift = attributes.timeShiftBufferDepth,
+ timeShiftBufferDepth = _attributes$timeShift === undefined ? Infinity : _attributes$timeShift;
+
+ var now = (NOW + clientOffset) / 1000;
+ var periodStartWC = availabilityStartTime + start;
+ var periodEndWC = now + minimumUpdatePeriod;
+ var periodDuration = periodEndWC - periodStartWC;
+ var segmentCount = Math.ceil(periodDuration * timescale / duration);
+ var availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);
+ var availableEnd = Math.floor((now - periodStartWC) * timescale / duration);
+
+ return {
+ start: Math.max(0, availableStart),
+ end: Math.min(segmentCount, availableEnd)
+ };
+ }
+ };
+
+ /**
+ * Maps a range of numbers to objects with information needed to build the corresponding
+ * segment list
+ *
+ * @name toSegmentsCallback
+ * @function
+ * @param {number} number
+ * Number of the segment
+ * @param {number} index
+ * Index of the number in the range list
+ * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}
+ * Object with segment timing and duration info
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping a range of numbers to
+ * information needed to build the segment list.
+ *
+ * @param {Object} attributes
+ * Inherited MPD attributes
+ * @return {toSegmentsCallback}
+ * Callback map function
+ */
+ var toSegments = function toSegments(attributes) {
+ return function (number, index) {
+ var duration = attributes.duration,
+ _attributes$timescale3 = attributes.timescale,
+ timescale = _attributes$timescale3 === undefined ? 1 : _attributes$timescale3,
+ periodIndex = attributes.periodIndex,
+ _attributes$startNumb = attributes.startNumber,
+ startNumber = _attributes$startNumb === undefined ? 1 : _attributes$startNumb;
+
+ return {
+ number: startNumber + number,
+ duration: duration / timescale,
+ timeline: periodIndex,
+ time: index * duration
+ };
+ };
+ };
+
+ /**
+ * Returns a list of objects containing segment timing and duration info used for
+ * building the list of segments. This uses the @duration attribute specified
+ * in the MPD manifest to derive the range of segments.
+ *
+ * @param {Object} attributes
+ * Inherited MPD attributes
+ * @return {{number: number, duration: number, time: number, timeline: number}[]}
+ * List of Objects with segment timing and duration info
+ */
+ var parseByDuration = function parseByDuration(attributes) {
+ var _attributes$type = attributes.type,
+ type = _attributes$type === undefined ? 'static' : _attributes$type,
+ duration = attributes.duration,
+ _attributes$timescale4 = attributes.timescale,
+ timescale = _attributes$timescale4 === undefined ? 1 : _attributes$timescale4,
+ sourceDuration = attributes.sourceDuration;
+
+ var _segmentRange$type = segmentRange[type](attributes),
+ start = _segmentRange$type.start,
+ end = _segmentRange$type.end;
+
+ var segments = range(start, end).map(toSegments(attributes));
+
+ if (type === 'static') {
+ var index = segments.length - 1;
+
+ // final segment may be less than full segment duration
+ segments[index].duration = sourceDuration - duration / timescale * index;
+ }
+
+ return segments;
+ };
+
+ var identifierPattern = /\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g;
+
+ /**
+ * Replaces template identifiers with corresponding values. To be used as the callback
+ * for String.prototype.replace
+ *
+ * @name replaceCallback
+ * @function
+ * @param {string} match
+ * Entire match of identifier
+ * @param {string} identifier
+ * Name of matched identifier
+ * @param {string} format
+ * Format tag string. Its presence indicates that padding is expected
+ * @param {string} width
+ * Desired length of the replaced value. Values less than this width shall be left
+ * zero padded
+ * @return {string}
+ * Replacement for the matched identifier
+ */
+
+ /**
+ * Returns a function to be used as a callback for String.prototype.replace to replace
+ * template identifiers
+ *
+ * @param {Obect} values
+ * Object containing values that shall be used to replace known identifiers
+ * @param {number} values.RepresentationID
+ * Value of the Representation@id attribute
+ * @param {number} values.Number
+ * Number of the corresponding segment
+ * @param {number} values.Bandwidth
+ * Value of the Representation@bandwidth attribute.
+ * @param {number} values.Time
+ * Timestamp value of the corresponding segment
+ * @return {replaceCallback}
+ * Callback to be used with String.prototype.replace to replace identifiers
+ */
+ var identifierReplacement = function identifierReplacement(values) {
+ return function (match, identifier, format, width) {
+ if (match === '$$') {
+ // escape sequence
+ return '$';
+ }
+
+ if (typeof values[identifier] === 'undefined') {
+ return match;
+ }
+
+ var value = '' + values[identifier];
+
+ if (identifier === 'RepresentationID') {
+ // Format tag shall not be present with RepresentationID
+ return value;
+ }
+
+ if (!format) {
+ width = 1;
+ } else {
+ width = parseInt(width, 10);
+ }
+
+ if (value.length >= width) {
+ return value;
+ }
+
+ return '' + new Array(width - value.length + 1).join('0') + value;
+ };
+ };
+
+ /**
+ * Constructs a segment url from a template string
+ *
+ * @param {string} url
+ * Template string to construct url from
+ * @param {Obect} values
+ * Object containing values that shall be used to replace known identifiers
+ * @param {number} values.RepresentationID
+ * Value of the Representation@id attribute
+ * @param {number} values.Number
+ * Number of the corresponding segment
+ * @param {number} values.Bandwidth
+ * Value of the Representation@bandwidth attribute.
+ * @param {number} values.Time
+ * Timestamp value of the corresponding segment
+ * @return {string}
+ * Segment url with identifiers replaced
+ */
+ var constructTemplateUrl = function constructTemplateUrl(url, values) {
+ return url.replace(identifierPattern, identifierReplacement(values));
+ };
+
+ /**
+ * Generates a list of objects containing timing and duration information about each
+ * segment needed to generate segment uris and the complete segment object
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]|undefined} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ * the SegmentTimeline element
+ * @return {{number: number, duration: number, time: number, timeline: number}[]}
+ * List of Objects with segment timing and duration info
+ */
+ var parseTemplateInfo = function parseTemplateInfo(attributes, segmentTimeline) {
+ if (!attributes.duration && !segmentTimeline) {
+ // if neither @duration or SegmentTimeline are present, then there shall be exactly
+ // one media segment
+ return [{
+ number: attributes.startNumber || 1,
+ duration: attributes.sourceDuration,
+ time: 0,
+ timeline: attributes.periodIndex
+ }];
+ }
+
+ if (attributes.duration) {
+ return parseByDuration(attributes);
+ }
+
+ return parseByTimeline(attributes, segmentTimeline);
+ };
+
+ /**
+ * Generates a list of segments using information provided by the SegmentTemplate element
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]|undefined} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ * the SegmentTimeline element
+ * @return {Object[]}
+ * List of segment objects
+ */
+ var segmentsFromTemplate = function segmentsFromTemplate(attributes, segmentTimeline) {
+ var templateValues = {
+ RepresentationID: attributes.id,
+ Bandwidth: attributes.bandwidth || 0
+ };
+
+ var _attributes$initializ = attributes.initialization,
+ initialization = _attributes$initializ === undefined ? { sourceURL: '', range: '' } : _attributes$initializ;
+
+ var mapSegment = urlTypeToSegment({
+ baseUrl: attributes.baseUrl,
+ source: constructTemplateUrl(initialization.sourceURL, templateValues),
+ range: initialization.range
+ });
+
+ var segments = parseTemplateInfo(attributes, segmentTimeline);
+
+ return segments.map(function (segment) {
+ templateValues.Number = segment.number;
+ templateValues.Time = segment.time;
+
+ var uri = constructTemplateUrl(attributes.media || '', templateValues);
+
+ return {
+ uri: uri,
+ timeline: segment.timeline,
+ duration: segment.duration,
+ resolvedUri: resolveUrl(attributes.baseUrl || '', uri),
+ map: mapSegment,
+ number: segment.number
+ };
+ });
+ };
+
+ var errors = {
+ INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',
+ DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',
+ DASH_INVALID_XML: 'DASH_INVALID_XML',
+ NO_BASE_URL: 'NO_BASE_URL',
+ MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',
+ SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',
+ UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'
+ };
+
+ /**
+ * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)
+ * to an object that matches the output of a segment in videojs/mpd-parser
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object} segmentUrl
+ * <SegmentURL> node to translate into a segment object
+ * @return {Object} translated segment object
+ */
+ var SegmentURLToSegmentObject = function SegmentURLToSegmentObject(attributes, segmentUrl) {
+ var baseUrl = attributes.baseUrl,
+ _attributes$initializ = attributes.initialization,
+ initialization = _attributes$initializ === undefined ? {} : _attributes$initializ;
+
+ var initSegment = urlTypeToSegment({
+ baseUrl: baseUrl,
+ source: initialization.sourceURL,
+ range: initialization.range
+ });
+
+ var segment = urlTypeToSegment({
+ baseUrl: baseUrl,
+ source: segmentUrl.media,
+ range: segmentUrl.mediaRange
+ });
+
+ segment.map = initSegment;
+
+ return segment;
+ };
+
+ /**
+ * Generates a list of segments using information provided by the SegmentList element
+ * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes. Each
+ * node should be translated into segment.
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @param {Object[]|undefined} segmentTimeline
+ * List of objects representing the attributes of each S element contained within
+ * the SegmentTimeline element
+ * @return {Object.<Array>} list of segments
+ */
+ var segmentsFromList = function segmentsFromList(attributes, segmentTimeline) {
+ var duration = attributes.duration,
+ _attributes$segmentUr = attributes.segmentUrls,
+ segmentUrls = _attributes$segmentUr === undefined ? [] : _attributes$segmentUr;
+
+ // Per spec (5.3.9.2.1) no way to determine segment duration OR
+ // if both SegmentTimeline and @duration are defined, it is outside of spec.
+
+ if (!duration && !segmentTimeline || duration && segmentTimeline) {
+ throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);
+ }
+
+ var segmentUrlMap = segmentUrls.map(function (segmentUrlObject) {
+ return SegmentURLToSegmentObject(attributes, segmentUrlObject);
+ });
+ var segmentTimeInfo = void 0;
+
+ if (duration) {
+ segmentTimeInfo = parseByDuration(attributes);
+ }
+
+ if (segmentTimeline) {
+ segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);
+ }
+
+ var segments = segmentTimeInfo.map(function (segmentTime, index) {
+ if (segmentUrlMap[index]) {
+ var segment = segmentUrlMap[index];
+
+ segment.timeline = segmentTime.timeline;
+ segment.duration = segmentTime.duration;
+ segment.number = segmentTime.number;
+ return segment;
+ }
+ // Since we're mapping we should get rid of any blank segments (in case
+ // the given SegmentTimeline is handling for more elements than we have
+ // SegmentURLs for).
+ }).filter(function (segment) {
+ return segment;
+ });
+
+ return segments;
+ };
+
+ /**
+ * Translates SegmentBase into a set of segments.
+ * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes. Each
+ * node should be translated into segment.
+ *
+ * @param {Object} attributes
+ * Object containing all inherited attributes from parent elements with attribute
+ * names as keys
+ * @return {Object.<Array>} list of segments
+ */
+ var segmentsFromBase = function segmentsFromBase(attributes) {
+ var baseUrl = attributes.baseUrl,
+ _attributes$initializ = attributes.initialization,
+ initialization = _attributes$initializ === undefined ? {} : _attributes$initializ,
+ sourceDuration = attributes.sourceDuration,
+ _attributes$timescale = attributes.timescale,
+ timescale = _attributes$timescale === undefined ? 1 : _attributes$timescale,
+ _attributes$indexRang = attributes.indexRange,
+ indexRange = _attributes$indexRang === undefined ? '' : _attributes$indexRang,
+ duration = attributes.duration;
+
+ // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)
+
+ if (!baseUrl) {
+ throw new Error(errors.NO_BASE_URL);
+ }
+
+ var initSegment = urlTypeToSegment({
+ baseUrl: baseUrl,
+ source: initialization.sourceURL,
+ range: initialization.range
+ });
+ var segment = urlTypeToSegment({ baseUrl: baseUrl, source: baseUrl, range: indexRange });
+
+ segment.map = initSegment;
+
+ // If there is a duration, use it, otherwise use the given duration of the source
+ // (since SegmentBase is only for one total segment)
+ if (duration) {
+ var segmentTimeInfo = parseByDuration(attributes);
+
+ if (segmentTimeInfo.length) {
+ segment.duration = segmentTimeInfo[0].duration;
+ segment.timeline = segmentTimeInfo[0].timeline;
+ }
+ } else if (sourceDuration) {
+ segment.duration = sourceDuration / timescale;
+ segment.timeline = 0;
+ }
+
+ // This is used for mediaSequence
+ segment.number = 0;
+
+ return [segment];
+ };
+
+ var generateSegments = function generateSegments(_ref) {
+ var attributes = _ref.attributes,
+ segmentInfo = _ref.segmentInfo;
+
+ var segmentAttributes = void 0;
+ var segmentsFn = void 0;
+
+ if (segmentInfo.template) {
+ segmentsFn = segmentsFromTemplate;
+ segmentAttributes = merge(attributes, segmentInfo.template);
+ } else if (segmentInfo.base) {
+ segmentsFn = segmentsFromBase;
+ segmentAttributes = merge(attributes, segmentInfo.base);
+ } else if (segmentInfo.list) {
+ segmentsFn = segmentsFromList;
+ segmentAttributes = merge(attributes, segmentInfo.list);
+ }
+
+ if (!segmentsFn) {
+ return { attributes: attributes };
+ }
+
+ var segments = segmentsFn(segmentAttributes, segmentInfo.timeline);
+
+ // The @duration attribute will be used to determin the playlist's targetDuration which
+ // must be in seconds. Since we've generated the segment list, we no longer need
+ // @duration to be in @timescale units, so we can convert it here.
+ if (segmentAttributes.duration) {
+ var _segmentAttributes = segmentAttributes,
+ duration = _segmentAttributes.duration,
+ _segmentAttributes$ti = _segmentAttributes.timescale,
+ timescale = _segmentAttributes$ti === undefined ? 1 : _segmentAttributes$ti;
+
+ segmentAttributes.duration = duration / timescale;
+ } else if (segments.length) {
+ // if there is no @duration attribute, use the largest segment duration as
+ // as target duration
+ segmentAttributes.duration = segments.reduce(function (max, segment) {
+ return Math.max(max, Math.ceil(segment.duration));
+ }, 0);
+ } else {
+ segmentAttributes.duration = 0;
+ }
+
+ return {
+ attributes: segmentAttributes,
+ segments: segments
+ };
+ };
+
+ var toPlaylists = function toPlaylists(representations) {
+ return representations.map(generateSegments);
+ };
+
+ var findChildren = function findChildren(element, name) {
+ return from(element.childNodes).filter(function (_ref) {
+ var tagName = _ref.tagName;
+ return tagName === name;
+ });
+ };
+
+ var getContent = function getContent(element) {
+ return element.textContent.trim();
+ };
+
+ var parseDuration = function parseDuration(str) {
+ var SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
+ var SECONDS_IN_MONTH = 30 * 24 * 60 * 60;
+ var SECONDS_IN_DAY = 24 * 60 * 60;
+ var SECONDS_IN_HOUR = 60 * 60;
+ var SECONDS_IN_MIN = 60;
+
+ // P10Y10M10DT10H10M10.1S
+ var durationRegex = /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/;
+ var match = durationRegex.exec(str);
+
+ if (!match) {
+ return 0;
+ }
+
+ var _match$slice = match.slice(1),
+ year = _match$slice[0],
+ month = _match$slice[1],
+ day = _match$slice[2],
+ hour = _match$slice[3],
+ minute = _match$slice[4],
+ second = _match$slice[5];
+
+ return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);
+ };
+
+ var parseDate = function parseDate(str) {
+ // Date format without timezone according to ISO 8601
+ // YYY-MM-DDThh:mm:ss.ssssss
+ var dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/;
+
+ // If the date string does not specifiy a timezone, we must specifiy UTC. This is
+ // expressed by ending with 'Z'
+ if (dateRegex.test(str)) {
+ str += 'Z';
+ }
+
+ return Date.parse(str);
+ };
+
+ // TODO: maybe order these in some way that makes it easy to find specific attributes
+ var parsers = {
+ /**
+ * Specifies the duration of the entire Media Presentation. Format is a duration string
+ * as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ mediaPresentationDuration: function mediaPresentationDuration(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the Segment availability start time for all Segments referred to in this
+ * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability
+ * time. Format is a date string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The date as seconds from unix epoch
+ */
+ availabilityStartTime: function availabilityStartTime(value) {
+ return parseDate(value) / 1000;
+ },
+
+ /**
+ * Specifies the smallest period between potential changes to the MPD. Format is a
+ * duration string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ minimumUpdatePeriod: function minimumUpdatePeriod(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the duration of the smallest time shifting buffer for any Representation
+ * in the MPD. Format is a duration string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ timeShiftBufferDepth: function timeShiftBufferDepth(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.
+ * Format is a duration string as specified in ISO 8601
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The duration in seconds
+ */
+ start: function start(value) {
+ return parseDuration(value);
+ },
+
+ /**
+ * Specifies the width of the visual presentation
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed width
+ */
+ width: function width(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the height of the visual presentation
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed height
+ */
+ height: function height(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the bitrate of the representation
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed bandwidth
+ */
+ bandwidth: function bandwidth(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the number of the first Media Segment in this Representation in the Period
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed number
+ */
+ startNumber: function startNumber(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the timescale in units per seconds
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The aprsed timescale
+ */
+ timescale: function timescale(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the constant approximate Segment duration
+ * NOTE: The <Period> element also contains an @duration attribute. This duration
+ * specifies the duration of the Period. This attribute is currently not
+ * supported by the rest of the parser, however we still check for it to prevent
+ * errors.
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed duration
+ */
+ duration: function duration(value) {
+ var parsedValue = parseInt(value, 10);
+
+ if (isNaN(parsedValue)) {
+ return parseDuration(value);
+ }
+
+ return parsedValue;
+ },
+
+ /**
+ * Specifies the Segment duration, in units of the value of the @timescale.
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed duration
+ */
+ d: function d(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the MPD start time, in @timescale units, the first Segment in the series
+ * starts relative to the beginning of the Period
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed time
+ */
+ t: function t(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Specifies the repeat count of the number of following contiguous Segments with the
+ * same duration expressed by the value of @d
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {number}
+ * The parsed number
+ */
+ r: function r(value) {
+ return parseInt(value, 10);
+ },
+
+ /**
+ * Default parser for all other attributes. Acts as a no-op and just returns the value
+ * as a string
+ *
+ * @param {string} value
+ * value of attribute as a string
+ * @return {string}
+ * Unparsed value
+ */
+ DEFAULT: function DEFAULT(value) {
+ return value;
+ }
+ };
+
+ /**
+ * Gets all the attributes and values of the provided node, parses attributes with known
+ * types, and returns an object with attribute names mapped to values.
+ *
+ * @param {Node} el
+ * The node to parse attributes from
+ * @return {Object}
+ * Object with all attributes of el parsed
+ */
+ var parseAttributes$1 = function parseAttributes(el) {
+ if (!(el && el.attributes)) {
+ return {};
+ }
+
+ return from(el.attributes).reduce(function (a, e) {
+ var parseFn = parsers[e.name] || parsers.DEFAULT;
+
+ a[e.name] = parseFn(e.value);
+
+ return a;
+ }, {});
+ };
+
+ function decodeB64ToUint8Array(b64Text) {
+ var decodedString = window_1.atob(b64Text);
+ var array = new Uint8Array(decodedString.length);
+
+ for (var i = 0; i < decodedString.length; i++) {
+ array[i] = decodedString.charCodeAt(i);
+ }
+ return array;
+ }
+
+ var keySystemsMap = {
+ 'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',
+ 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',
+ 'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',
+ 'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'
+ };
+
+ /**
+ * Builds a list of urls that is the product of the reference urls and BaseURL values
+ *
+ * @param {string[]} referenceUrls
+ * List of reference urls to resolve to
+ * @param {Node[]} baseUrlElements
+ * List of BaseURL nodes from the mpd
+ * @return {string[]}
+ * List of resolved urls
+ */
+ var buildBaseUrls = function buildBaseUrls(referenceUrls, baseUrlElements) {
+ if (!baseUrlElements.length) {
+ return referenceUrls;
+ }
+
+ return flatten(referenceUrls.map(function (reference) {
+ return baseUrlElements.map(function (baseUrlElement) {
+ return resolveUrl(reference, getContent(baseUrlElement));
+ });
+ }));
+ };
+
+ /**
+ * Contains all Segment information for its containing AdaptationSet
+ *
+ * @typedef {Object} SegmentInformation
+ * @property {Object|undefined} template
+ * Contains the attributes for the SegmentTemplate node
+ * @property {Object[]|undefined} timeline
+ * Contains a list of atrributes for each S node within the SegmentTimeline node
+ * @property {Object|undefined} list
+ * Contains the attributes for the SegmentList node
+ * @property {Object|undefined} base
+ * Contains the attributes for the SegmentBase node
+ */
+
+ /**
+ * Returns all available Segment information contained within the AdaptationSet node
+ *
+ * @param {Node} adaptationSet
+ * The AdaptationSet node to get Segment information from
+ * @return {SegmentInformation}
+ * The Segment information contained within the provided AdaptationSet
+ */
+ var getSegmentInformation = function getSegmentInformation(adaptationSet) {
+ var segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];
+ var segmentList = findChildren(adaptationSet, 'SegmentList')[0];
+ var segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(function (s) {
+ return merge({ tag: 'SegmentURL' }, parseAttributes$1(s));
+ });
+ var segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];
+ var segmentTimelineParentNode = segmentList || segmentTemplate;
+ var segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];
+ var segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;
+ var segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0];
+
+ // SegmentTemplate is handled slightly differently, since it can have both
+ // @initialization and an <Initialization> node. @initialization can be templated,
+ // while the node can have a url and range specified. If the <SegmentTemplate> has
+ // both @initialization and an <Initialization> subelement we opt to override with
+ // the node, as this interaction is not defined in the spec.
+ var template = segmentTemplate && parseAttributes$1(segmentTemplate);
+
+ if (template && segmentInitialization) {
+ template.initialization = segmentInitialization && parseAttributes$1(segmentInitialization);
+ } else if (template && template.initialization) {
+ // If it is @initialization we convert it to an object since this is the format that
+ // later functions will rely on for the initialization segment. This is only valid
+ // for <SegmentTemplate>
+ template.initialization = { sourceURL: template.initialization };
+ }
+
+ var segmentInfo = {
+ template: template,
+ timeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(function (s) {
+ return parseAttributes$1(s);
+ }),
+ list: segmentList && merge(parseAttributes$1(segmentList), {
+ segmentUrls: segmentUrls,
+ initialization: parseAttributes$1(segmentInitialization)
+ }),
+ base: segmentBase && merge(parseAttributes$1(segmentBase), {
+ initialization: parseAttributes$1(segmentInitialization)
+ })
+ };
+
+ Object.keys(segmentInfo).forEach(function (key) {
+ if (!segmentInfo[key]) {
+ delete segmentInfo[key];
+ }
+ });
+
+ return segmentInfo;
+ };
+
+ /**
+ * Contains Segment information and attributes needed to construct a Playlist object
+ * from a Representation
+ *
+ * @typedef {Object} RepresentationInformation
+ * @property {SegmentInformation} segmentInfo
+ * Segment information for this Representation
+ * @property {Object} attributes
+ * Inherited attributes for this Representation
+ */
+
+ /**
+ * Maps a Representation node to an object containing Segment information and attributes
+ *
+ * @name inheritBaseUrlsCallback
+ * @function
+ * @param {Node} representation
+ * Representation node from the mpd
+ * @return {RepresentationInformation}
+ * Representation information needed to construct a Playlist object
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping Representation nodes to
+ * Segment information and attributes using inherited BaseURL nodes.
+ *
+ * @param {Object} adaptationSetAttributes
+ * Contains attributes inherited by the AdaptationSet
+ * @param {string[]} adaptationSetBaseUrls
+ * Contains list of resolved base urls inherited by the AdaptationSet
+ * @param {SegmentInformation} adaptationSetSegmentInfo
+ * Contains Segment information for the AdaptationSet
+ * @return {inheritBaseUrlsCallback}
+ * Callback map function
+ */
+ var inheritBaseUrls = function inheritBaseUrls(adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) {
+ return function (representation) {
+ var repBaseUrlElements = findChildren(representation, 'BaseURL');
+ var repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);
+ var attributes = merge(adaptationSetAttributes, parseAttributes$1(representation));
+ var representationSegmentInfo = getSegmentInformation(representation);
+
+ return repBaseUrls.map(function (baseUrl) {
+ return {
+ segmentInfo: merge(adaptationSetSegmentInfo, representationSegmentInfo),
+ attributes: merge(attributes, { baseUrl: baseUrl })
+ };
+ });
+ };
+ };
+
+ /**
+ * Tranforms a series of content protection nodes to
+ * an object containing pssh data by key system
+ *
+ * @param {Node[]} contentProtectionNodes
+ * Content protection nodes
+ * @return {Object}
+ * Object containing pssh data by key system
+ */
+ var generateKeySystemInformation = function generateKeySystemInformation(contentProtectionNodes) {
+ return contentProtectionNodes.reduce(function (acc, node) {
+ var attributes = parseAttributes$1(node);
+ var keySystem = keySystemsMap[attributes.schemeIdUri];
+
+ if (keySystem) {
+ acc[keySystem] = { attributes: attributes };
+
+ var psshNode = findChildren(node, 'cenc:pssh')[0];
+
+ if (psshNode) {
+ var pssh = getContent(psshNode);
+ var psshBuffer = pssh && decodeB64ToUint8Array(pssh);
+
+ acc[keySystem].pssh = psshBuffer;
+ }
+ }
+
+ return acc;
+ }, {});
+ };
+
+ /**
+ * Maps an AdaptationSet node to a list of Representation information objects
+ *
+ * @name toRepresentationsCallback
+ * @function
+ * @param {Node} adaptationSet
+ * AdaptationSet node from the mpd
+ * @return {RepresentationInformation[]}
+ * List of objects containing Representaion information
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of
+ * Representation information objects
+ *
+ * @param {Object} periodAttributes
+ * Contains attributes inherited by the Period
+ * @param {string[]} periodBaseUrls
+ * Contains list of resolved base urls inherited by the Period
+ * @param {string[]} periodSegmentInfo
+ * Contains Segment Information at the period level
+ * @return {toRepresentationsCallback}
+ * Callback map function
+ */
+ var toRepresentations = function toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo) {
+ return function (adaptationSet) {
+ var adaptationSetAttributes = parseAttributes$1(adaptationSet);
+ var adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));
+ var role = findChildren(adaptationSet, 'Role')[0];
+ var roleAttributes = { role: parseAttributes$1(role) };
+
+ var attrs = merge(periodAttributes, adaptationSetAttributes, roleAttributes);
+
+ var contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));
+
+ if (Object.keys(contentProtection).length) {
+ attrs = merge(attrs, { contentProtection: contentProtection });
+ }
+
+ var segmentInfo = getSegmentInformation(adaptationSet);
+ var representations = findChildren(adaptationSet, 'Representation');
+ var adaptationSetSegmentInfo = merge(periodSegmentInfo, segmentInfo);
+
+ return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));
+ };
+ };
+
+ /**
+ * Maps an Period node to a list of Representation inforamtion objects for all
+ * AdaptationSet nodes contained within the Period
+ *
+ * @name toAdaptationSetsCallback
+ * @function
+ * @param {Node} period
+ * Period node from the mpd
+ * @param {number} periodIndex
+ * Index of the Period within the mpd
+ * @return {RepresentationInformation[]}
+ * List of objects containing Representaion information
+ */
+
+ /**
+ * Returns a callback for Array.prototype.map for mapping Period nodes to a list of
+ * Representation information objects
+ *
+ * @param {Object} mpdAttributes
+ * Contains attributes inherited by the mpd
+ * @param {string[]} mpdBaseUrls
+ * Contains list of resolved base urls inherited by the mpd
+ * @return {toAdaptationSetsCallback}
+ * Callback map function
+ */
+ var toAdaptationSets = function toAdaptationSets(mpdAttributes, mpdBaseUrls) {
+ return function (period, periodIndex) {
+ var periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period, 'BaseURL'));
+ var periodAtt = parseAttributes$1(period);
+ var periodAttributes = merge(mpdAttributes, periodAtt, { periodIndex: periodIndex });
+ var adaptationSets = findChildren(period, 'AdaptationSet');
+ var periodSegmentInfo = getSegmentInformation(period);
+
+ return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));
+ };
+ };
+
+ /**
+ * Traverses the mpd xml tree to generate a list of Representation information objects
+ * that have inherited attributes from parent nodes
+ *
+ * @param {Node} mpd
+ * The root node of the mpd
+ * @param {Object} options
+ * Available options for inheritAttributes
+ * @param {string} options.manifestUri
+ * The uri source of the mpd
+ * @param {number} options.NOW
+ * Current time per DASH IOP. Default is current time in ms since epoch
+ * @param {number} options.clientOffset
+ * Client time difference from NOW (in milliseconds)
+ * @return {RepresentationInformation[]}
+ * List of objects containing Representation information
+ */
+ var inheritAttributes = function inheritAttributes(mpd) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ var _options$manifestUri = options.manifestUri,
+ manifestUri = _options$manifestUri === undefined ? '' : _options$manifestUri,
+ _options$NOW = options.NOW,
+ NOW = _options$NOW === undefined ? Date.now() : _options$NOW,
+ _options$clientOffset = options.clientOffset,
+ clientOffset = _options$clientOffset === undefined ? 0 : _options$clientOffset;
+
+ var periods = findChildren(mpd, 'Period');
+
+ if (periods.length !== 1) {
+ // TODO add support for multiperiod
+ throw new Error(errors.INVALID_NUMBER_OF_PERIOD);
+ }
+
+ var mpdAttributes = parseAttributes$1(mpd);
+ var mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL'));
+
+ mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;
+ mpdAttributes.NOW = NOW;
+ mpdAttributes.clientOffset = clientOffset;
+
+ return flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)));
+ };
+
+ var stringToMpdXml = function stringToMpdXml(manifestString) {
+ if (manifestString === '') {
+ throw new Error(errors.DASH_EMPTY_MANIFEST);
+ }
+
+ var parser = new window_1.DOMParser();
+ var xml = parser.parseFromString(manifestString, 'application/xml');
+ var mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;
+
+ if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {
+ throw new Error(errors.DASH_INVALID_XML);
+ }
+
+ return mpd;
+ };
+
+ /**
+ * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
+ *
+ * @param {string} mpd
+ * XML string of the MPD manifest
+ * @return {Object|null}
+ * Attributes of UTCTiming node specified in the manifest. Null if none found
+ */
+ var parseUTCTimingScheme = function parseUTCTimingScheme(mpd) {
+ var UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];
+
+ if (!UTCTimingNode) {
+ return null;
+ }
+
+ var attributes = parseAttributes$1(UTCTimingNode);
+
+ switch (attributes.schemeIdUri) {
+ case 'urn:mpeg:dash:utc:http-head:2014':
+ case 'urn:mpeg:dash:utc:http-head:2012':
+ attributes.method = 'HEAD';
+ break;
+ case 'urn:mpeg:dash:utc:http-xsdate:2014':
+ case 'urn:mpeg:dash:utc:http-iso:2014':
+ case 'urn:mpeg:dash:utc:http-xsdate:2012':
+ case 'urn:mpeg:dash:utc:http-iso:2012':
+ attributes.method = 'GET';
+ break;
+ case 'urn:mpeg:dash:utc:direct:2014':
+ case 'urn:mpeg:dash:utc:direct:2012':
+ attributes.method = 'DIRECT';
+ attributes.value = Date.parse(attributes.value);
+ break;
+ case 'urn:mpeg:dash:utc:http-ntp:2014':
+ case 'urn:mpeg:dash:utc:ntp:2014':
+ case 'urn:mpeg:dash:utc:sntp:2014':
+ default:
+ throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);
+ }
+
+ return attributes;
+ };
+
+ var parse = function parse(manifestString, options) {
+ return toM3u8(toPlaylists(inheritAttributes(stringToMpdXml(manifestString), options)));
+ };
+
+ /**
+ * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
+ *
+ * @param {string} manifestString
+ * XML string of the MPD manifest
+ * @return {Object|null}
+ * Attributes of UTCTiming node specified in the manifest. Null if none found
+ */
+ var parseUTCTiming = function parseUTCTiming(manifestString) {
+ return parseUTCTimingScheme(stringToMpdXml(manifestString));
+ };
+
+ var toUnsigned = function toUnsigned(value) {
+ return value >>> 0;
+ };
+
+ var bin = {
+ toUnsigned: toUnsigned
+ };
+ var bin_1 = bin.toUnsigned;
+
+ var bin$1 = /*#__PURE__*/Object.freeze({
+ default: bin,
+ __moduleExports: bin,
+ toUnsigned: bin_1
+ });
+
+ var require$$0$1 = ( bin$1 && bin ) || bin$1;
+
+ var toUnsigned$1 = require$$0$1.toUnsigned;
+ var _findBox, parseType, timescale, startTime, getVideoTrackIds;
+
+ // Find the data for a box specified by its path
+ _findBox = function findBox(data, path) {
+ var results = [],
+ i,
+ size,
+ type,
+ end,
+ subresults;
+
+ if (!path.length) {
+ // short-circuit the search for empty paths
+ return null;
+ }
+
+ for (i = 0; i < data.byteLength;) {
+ size = toUnsigned$1(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+
+ type = parseType(data.subarray(i + 4, i + 8));
+
+ end = size > 1 ? i + size : data.byteLength;
+
+ if (type === path[0]) {
+ if (path.length === 1) {
+ // this is the end of the path and we've found the box we were
+ // looking for
+ results.push(data.subarray(i + 8, end));
+ } else {
+ // recursively search for the next box along the path
+ subresults = _findBox(data.subarray(i + 8, end), path.slice(1));
+ if (subresults.length) {
+ results = results.concat(subresults);
+ }
+ }
+ }
+ i = end;
+ }
+
+ // we've finished searching all of data
+ return results;
+ };
+
+ /**
+ * Returns the string representation of an ASCII encoded four byte buffer.
+ * @param buffer {Uint8Array} a four-byte buffer to translate
+ * @return {string} the corresponding string
+ */
+ parseType = function parseType(buffer) {
+ var result = '';
+ result += String.fromCharCode(buffer[0]);
+ result += String.fromCharCode(buffer[1]);
+ result += String.fromCharCode(buffer[2]);
+ result += String.fromCharCode(buffer[3]);
+ return result;
+ };
+
+ /**
+ * Parses an MP4 initialization segment and extracts the timescale
+ * values for any declared tracks. Timescale values indicate the
+ * number of clock ticks per second to assume for time-based values
+ * elsewhere in the MP4.
+ *
+ * To determine the start time of an MP4, you need two pieces of
+ * information: the timescale unit and the earliest base media decode
+ * time. Multiple timescales can be specified within an MP4 but the
+ * base media decode time is always expressed in the timescale from
+ * the media header box for the track:
+ * ```
+ * moov > trak > mdia > mdhd.timescale
+ * ```
+ * @param init {Uint8Array} the bytes of the init segment
+ * @return {object} a hash of track ids to timescale values or null if
+ * the init segment is malformed.
+ */
+ timescale = function timescale(init) {
+ var result = {},
+ traks = _findBox(init, ['moov', 'trak']);
+
+ // mdhd timescale
+ return traks.reduce(function (result, trak) {
+ var tkhd, version, index, id, mdhd;
+
+ tkhd = _findBox(trak, ['tkhd'])[0];
+ if (!tkhd) {
+ return null;
+ }
+ version = tkhd[0];
+ index = version === 0 ? 12 : 20;
+ id = toUnsigned$1(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+
+ mdhd = _findBox(trak, ['mdia', 'mdhd'])[0];
+ if (!mdhd) {
+ return null;
+ }
+ version = mdhd[0];
+ index = version === 0 ? 12 : 20;
+ result[id] = toUnsigned$1(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+ return result;
+ }, result);
+ };
+
+ /**
+ * Determine the base media decode start time, in seconds, for an MP4
+ * fragment. If multiple fragments are specified, the earliest time is
+ * returned.
+ *
+ * The base media decode time can be parsed from track fragment
+ * metadata:
+ * ```
+ * moof > traf > tfdt.baseMediaDecodeTime
+ * ```
+ * It requires the timescale value from the mdhd to interpret.
+ *
+ * @param timescale {object} a hash of track ids to timescale values.
+ * @return {number} the earliest base media decode start time for the
+ * fragment, in seconds
+ */
+ startTime = function startTime(timescale, fragment) {
+ var trafs, baseTimes, result;
+
+ // we need info from two childrend of each track fragment box
+ trafs = _findBox(fragment, ['moof', 'traf']);
+
+ // determine the start times for each track
+ baseTimes = [].concat.apply([], trafs.map(function (traf) {
+ return _findBox(traf, ['tfhd']).map(function (tfhd) {
+ var id, scale, baseTime;
+
+ // get the track id from the tfhd
+ id = toUnsigned$1(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]);
+ // assume a 90kHz clock if no timescale was specified
+ scale = timescale[id] || 90e3;
+
+ // get the base media decode time from the tfdt
+ baseTime = _findBox(traf, ['tfdt']).map(function (tfdt) {
+ var version, result;
+
+ version = tfdt[0];
+ result = toUnsigned$1(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);
+ if (version === 1) {
+ result *= Math.pow(2, 32);
+ result += toUnsigned$1(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);
+ }
+ return result;
+ })[0];
+ baseTime = baseTime || Infinity;
+
+ // convert base time to seconds
+ return baseTime / scale;
+ });
+ }));
+
+ // return the minimum
+ result = Math.min.apply(null, baseTimes);
+ return isFinite(result) ? result : 0;
+ };
+
+ /**
+ * Find the trackIds of the video tracks in this source.
+ * Found by parsing the Handler Reference and Track Header Boxes:
+ * moov > trak > mdia > hdlr
+ * moov > trak > tkhd
+ *
+ * @param {Uint8Array} init - The bytes of the init segment for this source
+ * @return {Number[]} A list of trackIds
+ *
+ * @see ISO-BMFF-12/2015, Section 8.4.3
+ **/
+ getVideoTrackIds = function getVideoTrackIds(init) {
+ var traks = _findBox(init, ['moov', 'trak']);
+ var videoTrackIds = [];
+
+ traks.forEach(function (trak) {
+ var hdlrs = _findBox(trak, ['mdia', 'hdlr']);
+ var tkhds = _findBox(trak, ['tkhd']);
+
+ hdlrs.forEach(function (hdlr, index) {
+ var handlerType = parseType(hdlr.subarray(8, 12));
+ var tkhd = tkhds[index];
+ var view;
+ var version;
+ var trackId;
+
+ if (handlerType === 'vide') {
+ view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+ version = view.getUint8(0);
+ trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+
+ videoTrackIds.push(trackId);
+ }
+ });
+ });
+
+ return videoTrackIds;
+ };
+
+ var probe = {
+ findBox: _findBox,
+ parseType: parseType,
+ timescale: timescale,
+ startTime: startTime,
+ videoTrackIds: getVideoTrackIds
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS;
+
+ // pre-calculate constants
+ (function () {
+ var i;
+ types = {
+ avc1: [], // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [], // codingname
+ mvex: [],
+ mvhd: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ };
+
+ // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length;
+
+ // calculate the total size we need to allocate
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4);
+
+ // copy the payload into the result
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]);
+
+ // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length;
+ // build traf boxes for each track fragment
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i;
+
+ // leave the full box header (4 bytes) all zero
+
+ // write the sample table
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i;
+
+ // assemble the SPSs
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ }
+
+ // assemble the PPSs
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ return box(types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length // numOfSequenceParameterSets
+ ]).concat(sequenceParameterSets).concat([pps.length // numOfPictureParameterSets
+ ]).concat(pictureParameterSets))), // "PPS"
+ box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
+ );
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([
+
+ // SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+
+ return box(types.tkhd, result);
+ };
+
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF]));
+
+ // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+
+ // audio tracks require less metadata
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ }
+
+ // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]);
+ // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader;
+
+ // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0;
+
+ // trun flag constants
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+ var mp4Generator_1 = mp4Generator.ftyp;
+ var mp4Generator_2 = mp4Generator.mdat;
+ var mp4Generator_3 = mp4Generator.moof;
+ var mp4Generator_4 = mp4Generator.moov;
+ var mp4Generator_5 = mp4Generator.initSegment;
+
+ var mp4Generator$1 = /*#__PURE__*/Object.freeze({
+ default: mp4Generator,
+ __moduleExports: mp4Generator,
+ ftyp: mp4Generator_1,
+ mdat: mp4Generator_2,
+ moof: mp4Generator_3,
+ moov: mp4Generator_4,
+ initSegment: mp4Generator_5
+ });
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2014 Brightcove
+ * All rights reserved.
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+
+ var Stream$1 = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+ this.off = function (type, listener) {
+ var index;
+ if (!listeners[type]) {
+ return false;
+ }
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+ Stream$1.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+
+ return destination;
+ };
+
+ // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+ Stream$1.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream$1.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ var stream = Stream$1;
+
+ var stream$1 = /*#__PURE__*/Object.freeze({
+ default: stream,
+ __moduleExports: stream
+ });
+
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = [];
+
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i];
+
+ // Split on 'aud'-type nal units
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ frames.push(currentFrame);
+ }
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ }
+
+ // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ }
+
+ // Push the final frame
+ frames.push(currentFrame);
+ return frames;
+ };
+
+ // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = [];
+
+ // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts;
+
+ // store some metadata about all the Gops
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+
+ // push the final Gop
+ gops.push(currentGop);
+ return gops;
+ };
+
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount;
+
+ // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ };
+
+ // generate the track's sample table from an array of gops
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ sample = sampleForFrame(currentFrame, dataOffset);
+
+ dataOffset += sample.size;
+
+ samples.push(sample);
+ }
+ }
+ return samples;
+ };
+
+ // generate the track's raw mdat data from an array of gops
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer);
+
+ // For each Gop..
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ // For each Frame..
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ // For each NAL..
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData
+ };
+ var frameUtils_1 = frameUtils.groupNalsIntoFrames;
+ var frameUtils_2 = frameUtils.groupFramesIntoGops;
+ var frameUtils_3 = frameUtils.extendFirstKeyFrame;
+ var frameUtils_4 = frameUtils.generateSampleTable;
+ var frameUtils_5 = frameUtils.concatenateNalData;
+
+ var frameUtils$1 = /*#__PURE__*/Object.freeze({
+ default: frameUtils,
+ __moduleExports: frameUtils,
+ groupNalsIntoFrames: frameUtils_1,
+ groupFramesIntoGops: frameUtils_2,
+ extendFirstKeyFrame: frameUtils_3,
+ generateSampleTable: frameUtils_4,
+ concatenateNalData: frameUtils_5
+ });
+
+ var ONE_SECOND_IN_TS = 90000; // 90kHz clock
+
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts;
+
+ // Optionally adjust the time so the first segment starts at zero.
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ }
+
+ // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime;
+
+ // Add to that the distance this segment is from the very first
+ baseMediaDecodeTime += minSegmentDts;
+
+ // baseMediaDecodeTime must not become negative
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+ var trackDecodeInfo_1 = trackDecodeInfo.clearDtsInfo;
+ var trackDecodeInfo_2 = trackDecodeInfo.calculateTrackBaseMediaDecodeTime;
+ var trackDecodeInfo_3 = trackDecodeInfo.collectDtsInfo;
+
+ var trackDecodeInfo$1 = /*#__PURE__*/Object.freeze({
+ default: trackDecodeInfo,
+ __moduleExports: trackDecodeInfo,
+ clearDtsInfo: trackDecodeInfo_1,
+ calculateTrackBaseMediaDecodeTime: trackDecodeInfo_2,
+ collectDtsInfo: trackDecodeInfo_3
+ });
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0;
+
+ // go through the sei_rbsp parsing each each individual sei_message
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ }
+
+ // Parse payload type
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+ payloadType += bytes[i++];
+
+ // Parse payload size
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+ payloadSize += bytes[i++];
+
+ // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ }
+
+ // skip the payload and parse the next message
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ };
+
+ // see ANSI/SCTE 128-1 (2013), section 8.1
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ }
+
+ // itu_t_t35_provider_code should be 49 (ATSC) for captions
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ }
+
+ // the user_identifier should be "GA94" to indicate ATSC1 data
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ }
+
+ // finally, user_data_type_code should be 0x03 for caption data
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ }
+
+ // return the user_data_type_structure and strip the trailing
+ // marker bits
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ };
+
+ // see CEA-708-D, section 4.4
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data;
+
+ // if this is just filler, return immediately
+ if (!(userData[0] & 0x40)) {
+ return results;
+ }
+
+ // parse out the cc_data_1 and cc_data_2 fields
+ count = userData[0] & 0x1f;
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ };
+
+ // capture cc data when cc_valid is 1
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ // exports
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ };
+ var captionPacketParser_1 = captionPacketParser.parseSei;
+ var captionPacketParser_2 = captionPacketParser.parseUserData;
+ var captionPacketParser_3 = captionPacketParser.parseCaptionPackets;
+ var captionPacketParser_4 = captionPacketParser.discardEmulationPreventionBytes;
+ var captionPacketParser_5 = captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35;
+
+ var captionPacketParser$1 = /*#__PURE__*/Object.freeze({
+ default: captionPacketParser,
+ __moduleExports: captionPacketParser,
+ parseSei: captionPacketParser_1,
+ parseUserData: captionPacketParser_2,
+ parseCaptionPackets: captionPacketParser_3,
+ discardEmulationPreventionBytes: captionPacketParser_4,
+ USER_DATA_REGISTERED_ITU_T_T35: captionPacketParser_5
+ });
+
+ var Stream$2 = ( stream$1 && stream ) || stream$1;
+
+ var cea708Parser = ( captionPacketParser$1 && captionPacketParser ) || captionPacketParser$1;
+
+ // -----------------
+ // Link To Transport
+ // -----------------
+
+
+ var CaptionStream = function CaptionStream() {
+
+ CaptionStream.prototype.init.call(this);
+
+ this.captionPackets_ = [];
+
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+
+ this.reset();
+
+ // forward data and done events from CCs to this CaptionStream
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new Stream$2();
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets;
+
+ // only examine SEI NALs
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ }
+
+ // parse the sei
+ sei = cea708Parser.parseSei(event.escapedRBSP);
+
+ // ignore everything but user_data_registered_itu_t_t35
+ if (sei.payloadType !== cea708Parser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ }
+
+ // parse out the user data payload
+ userData = cea708Parser.parseUserData(sei);
+
+ // ignore unrecognized userData
+ if (!userData) {
+ return;
+ }
+
+ // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+ return;
+ }
+
+ // parse out CC data packets and save them for later
+ newCaptionPackets = cea708Parser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flush = function () {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ }
+
+ // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ });
+
+ // sort caption byte-pairs based on their PTS values
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+ return a.pts - b.pts;
+ });
+
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ }
+ // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+ }, this);
+
+ this.captionPackets_.length = 0;
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ };
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, discard the
+ // data; we don't want jumbled captions
+ return;
+ }
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ // ----------------------
+ // Session to Application
+ // ----------------------
+
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1, // á
+ 0x5c: 0xe9, // é
+ 0x5e: 0xed, // í
+ 0x5f: 0xf3, // ó
+ 0x60: 0xfa, // ú
+ 0x7b: 0xe7, // ç
+ 0x7c: 0xf7, // ÷
+ 0x7d: 0xd1, // Ñ
+ 0x7e: 0xf1, // ñ
+ 0x7f: 0x2588, // █
+ 0x0130: 0xae, // ®
+ 0x0131: 0xb0, // °
+ 0x0132: 0xbd, // ½
+ 0x0133: 0xbf, // ¿
+ 0x0134: 0x2122, // ™
+ 0x0135: 0xa2, // ¢
+ 0x0136: 0xa3, // £
+ 0x0137: 0x266a, // ♪
+ 0x0138: 0xe0, // à
+ 0x0139: 0xa0, //
+ 0x013a: 0xe8, // è
+ 0x013b: 0xe2, // â
+ 0x013c: 0xea, // ê
+ 0x013d: 0xee, // î
+ 0x013e: 0xf4, // ô
+ 0x013f: 0xfb, // û
+ 0x0220: 0xc1, // Á
+ 0x0221: 0xc9, // É
+ 0x0222: 0xd3, // Ó
+ 0x0223: 0xda, // Ú
+ 0x0224: 0xdc, // Ü
+ 0x0225: 0xfc, // ü
+ 0x0226: 0x2018, // ‘
+ 0x0227: 0xa1, // ¡
+ 0x0228: 0x2a, // *
+ 0x0229: 0x27, // '
+ 0x022a: 0x2014, // —
+ 0x022b: 0xa9, // ©
+ 0x022c: 0x2120, // ℠
+ 0x022d: 0x2022, // •
+ 0x022e: 0x201c, // “
+ 0x022f: 0x201d, // ”
+ 0x0230: 0xc0, // À
+ 0x0231: 0xc2, // Â
+ 0x0232: 0xc7, // Ç
+ 0x0233: 0xc8, // È
+ 0x0234: 0xca, // Ê
+ 0x0235: 0xcb, // Ë
+ 0x0236: 0xeb, // ë
+ 0x0237: 0xce, // Î
+ 0x0238: 0xcf, // Ï
+ 0x0239: 0xef, // ï
+ 0x023a: 0xd4, // Ô
+ 0x023b: 0xd9, // Ù
+ 0x023c: 0xf9, // ù
+ 0x023d: 0xdb, // Û
+ 0x023e: 0xab, // «
+ 0x023f: 0xbb, // »
+ 0x0320: 0xc3, // Ã
+ 0x0321: 0xe3, // ã
+ 0x0322: 0xcd, // Í
+ 0x0323: 0xcc, // Ì
+ 0x0324: 0xec, // ì
+ 0x0325: 0xd2, // Ò
+ 0x0326: 0xf2, // ò
+ 0x0327: 0xd5, // Õ
+ 0x0328: 0xf5, // õ
+ 0x0329: 0x7b, // {
+ 0x032a: 0x7d, // }
+ 0x032b: 0x5c, // \
+ 0x032c: 0x5e, // ^
+ 0x032d: 0x5f, // _
+ 0x032e: 0x7c, // |
+ 0x032f: 0x7e, // ~
+ 0x0330: 0xc4, // Ä
+ 0x0331: 0xe4, // ä
+ 0x0332: 0xd6, // Ö
+ 0x0333: 0xf6, // ö
+ 0x0334: 0xdf, // ß
+ 0x0335: 0xa5, // ¥
+ 0x0336: 0xa4, // ¤
+ 0x0337: 0x2502, // │
+ 0x0338: 0xc5, // Å
+ 0x0339: 0xe5, // å
+ 0x033a: 0xd8, // Ø
+ 0x033b: 0xf8, // ø
+ 0x033c: 0x250c, // ┌
+ 0x033d: 0x2510, // ┐
+ 0x033e: 0x2514, // └
+ 0x033f: 0x2518 // ┘
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ };
+
+ // the index of the last row in a CEA-608 display buffer
+ var BOTTOM_ROW = 14;
+
+ // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420];
+
+ // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+ while (i--) {
+ result.push('');
+ }
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text;
+ // remove the parity bits
+ data = packet.ccData & 0x7f7f;
+
+ // ignore duplicate control codes; the spec demands they're sent twice
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ }
+
+ // Store control codes
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts);
+ // if a caption was being displayed, it's gone now
+ this.flushDisplayed(packet.pts);
+
+ // flip memory
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap;
+
+ // start measuring the time to display the caption
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts;
+
+ // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts);
+
+ // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ // Detect offset control codes and adjust cursor
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03;
+
+ // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20);
+
+ // Configure the caption window if we're in roll-up mode
+ if (this.mode_ === 'rollUp') {
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ }
+ // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ }
+
+ // We have a normal character in char0, and possibly one in char1
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+ };
+ };
+ Cea608Stream.prototype = new Stream$2();
+ // Trigger a cue point that captures the current state of the
+ // display buffer
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_
+ // remove spaces from the start and end of the string
+ .map(function (row) {
+ return row.trim();
+ })
+ // combine all text rows to display in one cue
+ .join('\n')
+ // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn';
+ // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null;
+
+ // Track row and column for proper line-breaking and spacing
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2;
+
+ // This variable holds currently-applied formatting
+ this.formatting_ = [];
+ };
+
+ /**
+ * Sets up control code and related constants for this instance
+ */
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ }
+
+ // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+ this.PADDING_ = 0x0000;
+ // Pop-on Mode
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f;
+ // Roll-up Mode
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d;
+ // paint-on mode
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29;
+ // Erasure
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+ Cea608Stream.prototype.isNormalChar = function (char) {
+ return char >= 0x20 && char <= 0x7f;
+ };
+
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp';
+ // Spec says to wipe memories when switching to roll-up
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ };
+
+ // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ };
+
+ // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ };
+
+ // Mode Implementations
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_];
+
+ // buffer characters
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i;
+ // clear out inactive rows
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ }
+ // shift displayed rows up
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ }
+ // clear out the bottom row
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ // exports
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+ var captionStream_1 = captionStream.CaptionStream;
+ var captionStream_2 = captionStream.Cea608Stream;
+
+ var captionStream$1 = /*#__PURE__*/Object.freeze({
+ default: captionStream,
+ __moduleExports: captionStream,
+ CaptionStream: captionStream_1,
+ Cea608Stream: captionStream_2
+ });
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+ var streamTypes_1 = streamTypes.H264_STREAM_TYPE;
+ var streamTypes_2 = streamTypes.ADTS_STREAM_TYPE;
+ var streamTypes_3 = streamTypes.METADATA_STREAM_TYPE;
+
+ var streamTypes$1 = /*#__PURE__*/Object.freeze({
+ default: streamTypes,
+ __moduleExports: streamTypes,
+ H264_STREAM_TYPE: streamTypes_1,
+ ADTS_STREAM_TYPE: streamTypes_2,
+ METADATA_STREAM_TYPE: streamTypes_3
+ });
+
+ var MAX_TS = 8589934592;
+
+ var RO_THRESH = 4294967296;
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ }
+
+ // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+
+ TimestampRolloverStream.prototype.init.call(this);
+
+ this.type_ = type;
+
+ this.push = function (data) {
+ if (data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+
+ lastDTS = data.dts;
+
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+ };
+
+ TimestampRolloverStream.prototype = new Stream$2();
+
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+ var timestampRolloverStream_1 = timestampRolloverStream.TimestampRolloverStream;
+ var timestampRolloverStream_2 = timestampRolloverStream.handleRollover;
+
+ var timestampRolloverStream$1 = /*#__PURE__*/Object.freeze({
+ default: timestampRolloverStream,
+ __moduleExports: timestampRolloverStream,
+ TimestampRolloverStream: timestampRolloverStream_1,
+ handleRollover: timestampRolloverStream_2
+ });
+
+ var StreamTypes = ( streamTypes$1 && streamTypes ) || streamTypes$1;
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ },
+
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ // do not include the null terminator in the tag value
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this);
+
+ // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+ this.dispatchType = StreamTypes.METADATA_STREAM_TYPE.toString(16);
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ }
+
+ // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ }
+
+ // ignore events that don't look like ID3 data
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+ return;
+ }
+
+ // add this chunk to the data we've collected so far
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength;
+
+ // grab the size of the entire frame from the ID3 header
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10));
+
+ // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+ tagSize += 10;
+ }
+
+ // if the entire frame has not arrived, wait for more data
+ if (bufferSize < tagSize) {
+ return;
+ }
+
+ // collect the entire frame so it can be parsed
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ }
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14));
+
+ // clip any padding off the end
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame);
+
+ // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size;
+ // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+ this.trigger('timestamp', frame);
+ }
+ }
+ tag.frames.push(frame);
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+ this.trigger('data', tag);
+ };
+ };
+ _MetadataStream.prototype = new Stream$2();
+
+ var metadataStream = _MetadataStream;
+
+ var metadataStream$1 = /*#__PURE__*/Object.freeze({
+ default: metadataStream,
+ __moduleExports: metadataStream
+ });
+
+ var CaptionStream$1 = ( captionStream$1 && captionStream ) || captionStream$1;
+
+ var require$$0$2 = ( timestampRolloverStream$1 && timestampRolloverStream ) || timestampRolloverStream$1;
+
+ var require$$1$1 = ( metadataStream$1 && metadataStream ) || metadataStream$1;
+
+ var TimestampRolloverStream$1 = require$$0$2.TimestampRolloverStream;
+
+ // object types
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream;
+
+ // constants
+ var MP2T_PACKET_LENGTH = 188,
+ // bytes
+ SYNC_BYTE = 0x47;
+
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this);
+
+ // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ }
+
+ // While we have enough data for a packet
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ }
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+ this.trigger('done');
+ };
+ };
+ _TransportPacketStream.prototype = new Stream$2();
+
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+ _TransportParseStream.prototype.init.call(this);
+ self = this;
+
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0;
+
+ // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+
+ // skip the PSI header and parse the first PMT entry
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset;
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(payload[5] & 0x01)) {
+ return;
+ }
+
+ // overwrite any existing program map table
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ };
+
+ // the mapping table ends at the end of the current section
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11];
+
+ // advance the offset to the first entry in the mapping table
+ offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2];
+
+ // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+ if (streamType === StreamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === StreamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === StreamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ }
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ }
+
+ // record the map on the packet as well
+ pmt.programMapTable = self.programMapTable;
+ };
+
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40);
+
+ // pid is a 13-bit field starting at the last bit of packet[1]
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2];
+
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ }
+
+ // parse the rest of the packet based on the type
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+
+ // if there are any packets waiting for a PMT to be found, process them now
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = StreamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = StreamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+
+ this.trigger('data', result);
+ };
+ };
+ _TransportParseStream.prototype = new Stream$2();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags;
+
+ // get the packet length, this will be 0 for video
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]);
+
+ // find out if this packets starts a new keyframe
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0;
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = payload[7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream, type, forceFlush) {
+ var packetData = new Uint8Array(stream.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment;
+
+ // do nothing if there is not enough buffered data for a complete
+ // PES header
+ if (!stream.data.length || stream.size < 9) {
+ return;
+ }
+ event.trackId = stream.data[0].pid;
+
+ // reassemble the packet
+ for (i = 0; i < stream.data.length; i++) {
+ fragment = stream.data[i];
+
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ }
+
+ // parse assembled packet's PES header
+ parsePes(packetData, event);
+
+ // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+ packetFlushable = type === 'video' || event.packetLength <= stream.size;
+
+ // flush pending packets if the conditions are right
+ if (forceFlush || packetFlushable) {
+ stream.size = 0;
+ stream.data.length = 0;
+ }
+
+ // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+ this.push = function (data) {
+ ({
+ pat: function pat() {
+ // we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream, streamType;
+
+ switch (data.streamType) {
+ case StreamTypes.H264_STREAM_TYPE:
+ case StreamTypes.H264_STREAM_TYPE:
+ stream = video;
+ streamType = 'video';
+ break;
+ case StreamTypes.ADTS_STREAM_TYPE:
+ stream = audio;
+ streamType = 'audio';
+ break;
+ case StreamTypes.METADATA_STREAM_TYPE:
+ stream = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+ default:
+ // ignore unknown stream types
+ return;
+ }
+
+ // if a new packet is starting, we can flush the completed
+ // packet
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream, streamType, true);
+ }
+
+ // buffer this fragment until we are sure we've received the
+ // complete payload
+ stream.data.push(data);
+ stream.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ },
+ programMapTable = data.programMapTable;
+
+ // translate audio and video streams to tracks
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+ this.flush = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ this.trigger('done');
+ };
+ };
+ _ElementaryStream.prototype = new Stream$2();
+
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: CaptionStream$1.CaptionStream,
+ Cea608Stream: CaptionStream$1.Cea608Stream,
+ MetadataStream: require$$1$1
+ };
+
+ for (var type$1 in StreamTypes) {
+ if (StreamTypes.hasOwnProperty(type$1)) {
+ m2ts[type$1] = StreamTypes[type$1];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+
+ var m2ts$1 = /*#__PURE__*/Object.freeze({
+ default: m2ts_1,
+ __moduleExports: m2ts_1
+ });
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+ _AdtsStream = function AdtsStream() {
+ var buffer;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameNum = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ }
+
+ // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ }
+
+ // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+ while (i + 5 < buffer.length) {
+
+ // Loook for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2;
+
+ // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * 90000 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+
+ frameEnd = i + frameLength;
+
+ // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+ if (buffer.byteLength < frameEnd) {
+ return;
+ }
+
+ // Otherwise, deliver the complete AAC frame
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+
+ // If the buffer is empty, clear it and return
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ }
+
+ frameNum++;
+
+ // Remove the finished frame from the buffer and start the process again
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+ this.flush = function () {
+ this.trigger('done');
+ };
+ };
+
+ _AdtsStream.prototype = new Stream$2();
+
+ var adts = _AdtsStream;
+
+ var adts$1 = /*#__PURE__*/Object.freeze({
+ default: adts,
+ __moduleExports: adts
+ });
+
+ var ExpGolomb;
+
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+ ExpGolomb = function ExpGolomb(workingData) {
+ var
+ // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+
+
+ // the current word being examined
+ workingWord = 0,
+ // :uint
+
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+
+ // ():uint
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ };
+
+ // ():uint
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ };
+
+ // ():void
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0);
+
+ // track the amount of workingData that has been processed
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ };
+
+ // (count:int):void
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+
+ this.loadWord();
+
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ };
+
+ // (size:int):uint
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+ workingBitsAvailable -= bits;
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+ return valu;
+ };
+
+ // ():uint
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ }
+
+ // we exhausted workingWord and still have not found a 1
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ };
+
+ // ():void
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():void
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():uint
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+ return this.readBits(clz + 1) - 1;
+ };
+
+ // ():int
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ };
+
+ // Some convenience functions
+ // :Boolean
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ };
+
+ // ():int
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var expGolomb$1 = /*#__PURE__*/Object.freeze({
+ default: expGolomb,
+ __moduleExports: expGolomb
+ });
+
+ var ExpGolomb$1 = ( expGolomb$1 && expGolomb ) || expGolomb$1;
+
+ var _H264Stream, _NalByteStream;
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+ _NalByteStream.prototype.init.call(this);
+
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+
+ // advance the sync point to a NAL start, if necessary
+ for (; syncPoint < buffer.byteLength - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < buffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ }
+
+ // deliver the NAL unit if it isn't empty
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ }
+
+ // drop trailing zeroes
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < buffer.length);
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ }
+
+ // deliver the NAL unit
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ }
+ // filter out the NAL units that were delivered
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ }
+ // reset the stream state
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+ };
+ _NalByteStream.prototype = new Stream$2();
+
+ // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+ self = this;
+
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+
+ nalByteStream.push(packet);
+ };
+
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ }
+ // This triggers data on the H264Stream
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+
+ expGolombDecoder = new ExpGolomb$1(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+
+ // some profiles have more optional data we don't need
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];break;
+ case 2:
+ sarRatio = [12, 11];break;
+ case 3:
+ sarRatio = [10, 11];break;
+ case 4:
+ sarRatio = [16, 11];break;
+ case 5:
+ sarRatio = [40, 33];break;
+ case 6:
+ sarRatio = [24, 11];break;
+ case 7:
+ sarRatio = [20, 11];break;
+ case 8:
+ sarRatio = [32, 11];break;
+ case 9:
+ sarRatio = [80, 33];break;
+ case 10:
+ sarRatio = [18, 11];break;
+ case 11:
+ sarRatio = [15, 11];break;
+ case 12:
+ sarRatio = [64, 33];break;
+ case 13:
+ sarRatio = [160, 99];break;
+ case 14:
+ sarRatio = [4, 3];break;
+ case 15:
+ sarRatio = [3, 2];break;
+ case 16:
+ sarRatio = [2, 1];break;
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
+ };
+ };
+ };
+ _H264Stream.prototype = new Stream$2();
+
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+ var h264_1 = h264.H264Stream;
+ var h264_2 = h264.NalByteStream;
+
+ var h264$1 = /*#__PURE__*/Object.freeze({
+ default: h264,
+ __moduleExports: h264,
+ H264Stream: h264_1,
+ NalByteStream: h264_2
+ });
+
+ // Constants
+ var _AacStream;
+
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.parseId3TagSize = function (header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ this.parseAdtsSize = function (header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ }
+
+ // check framesize
+ frameSize = this.parseId3TagSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if (everything[byteIndex] & 0xff === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = this.parseAdtsSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+ byteIndex++;
+ }
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+ };
+
+ _AacStream.prototype = new Stream$2();
+
+ var aac = _AacStream;
+
+ var aac$1 = /*#__PURE__*/Object.freeze({
+ default: aac,
+ __moduleExports: aac
+ });
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+ while (count--) {
+ a.push(0);
+ }
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ };
+
+ // Frames-of-silence to use for filling in missing AAC frames
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+
+ var silence = makeTable(coneOfSilence);
+
+ var silence$1 = /*#__PURE__*/Object.freeze({
+ default: silence,
+ __moduleExports: silence
+ });
+
+ var ONE_SECOND_IN_TS$1 = 90000,
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS$1;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS$1;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+
+ var clock = {
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs
+ };
+ var clock_1 = clock.secondsToVideoTs;
+ var clock_2 = clock.secondsToAudioTs;
+ var clock_3 = clock.videoTsToSeconds;
+ var clock_4 = clock.audioTsToSeconds;
+ var clock_5 = clock.audioTsToVideoTs;
+ var clock_6 = clock.videoTsToAudioTs;
+
+ var clock$1 = /*#__PURE__*/Object.freeze({
+ default: clock,
+ __moduleExports: clock,
+ secondsToVideoTs: clock_1,
+ secondsToAudioTs: clock_2,
+ videoTsToSeconds: clock_3,
+ audioTsToSeconds: clock_4,
+ audioTsToVideoTs: clock_5,
+ videoTsToAudioTs: clock_6
+ });
+
+ var mp4 = ( mp4Generator$1 && mp4Generator ) || mp4Generator$1;
+
+ var frameUtils$2 = ( frameUtils$1 && frameUtils ) || frameUtils$1;
+
+ var trackDecodeInfo$2 = ( trackDecodeInfo$1 && trackDecodeInfo ) || trackDecodeInfo$1;
+
+ var m2ts$2 = ( m2ts$1 && m2ts_1 ) || m2ts$1;
+
+ var AdtsStream = ( adts$1 && adts ) || adts$1;
+
+ var require$$0$3 = ( h264$1 && h264 ) || h264$1;
+
+ var AacStream = ( aac$1 && aac ) || aac$1;
+
+ var coneOfSilence$1 = ( silence$1 && silence ) || silence$1;
+
+ var clock$2 = ( clock$1 && clock ) || clock$1;
+
+ var H264Stream = require$$0$3.H264Stream;
+
+ // constants
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility'];
+
+ var ONE_SECOND_IN_TS$2 = 90000; // 90kHz clock
+
+ // object types
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+
+ // Helper functions
+ var isLikelyAacData, arrayEquals, sumFrameByteLengths;
+
+ isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+ arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ }
+
+ // compare the value of each element in the array
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+ sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0;
+
+ // sum the byteLength's all each nal unit in the frame
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ };
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo$2.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ }
+
+ // buffer audio data until end() is called
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes;
+
+ // return early if no audio data has been observed
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = this.trimAdtsFramesByEarliestDts_(adtsFrames);
+ track.baseMediaDecodeTime = trackDecodeInfo$2.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.prefixWithSilence_(track, frames);
+
+ // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+ track.samples = this.generateSampleTable_(frames);
+
+ // concatenate the audio data to constuct the mdat
+ mdat = mp4.mdat(this.concatenateFrameData_(frames));
+
+ adtsFrames = [];
+
+ moof = mp4.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ trackDecodeInfo$2.clearDtsInfo(track);
+
+ this.trigger('data', { track: track, boxes: boxes });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+ this.prefixWithSilence_ = function (track, frames) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock$2.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate);
+ // determine frame clock duration based on sample rate, round up to avoid overfills
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$2 / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime);
+ // number of full frames in the audio gap
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ }
+
+ // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+ if (audioFillFrameCount < 1 || audioFillDuration > ONE_SECOND_IN_TS$2 / 2) {
+ return;
+ }
+
+ silentFrame = coneOfSilence$1[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ frames.splice(i, 0, {
+ data: silentFrame
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock$2.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ };
+
+ // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+ this.trimAdtsFramesByEarliestDts_ = function (adtsFrames) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ }
+
+ // We will need to recalculate the earliest segment Dts
+ track.minSegmentDts = Infinity;
+
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ }
+ // Otherwise, discard it
+ return false;
+ });
+ };
+
+ // generate the track's raw mdat data from an array of frames
+ this.generateSampleTable_ = function (frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+ });
+ }
+ return samples;
+ };
+
+ // generate the track's sample table from an array of frames
+ this.concatenateFrameData_ = function (frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+ return data;
+ };
+ };
+
+ _AudioSegmentStream.prototype = new Stream$2();
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+
+ this.gopCache_ = [];
+
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+ this.push = function (nalUnit) {
+ trackDecodeInfo$2.collectDtsInfo(track, nalUnit);
+
+ // record the track config
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ }
+
+ // buffer video until flush() is called
+ nalUnits.push(nalUnit);
+ };
+
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+ this.flush = function () {
+ var frames, gopForFusion, gops, moof, mdat, boxes;
+
+ // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+ nalUnits.shift();
+ }
+
+ // Return early if no video data has been observed
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+ frames = frameUtils$2.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils$2.groupFramesIntoGops(frames);
+
+ // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ gops.unshift(gopForFusion);
+ // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils$2.extendFirstKeyFrame(gops);
+ }
+ }
+
+ // Trim gops to align with gopsToAlignWith
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ // return early no gops can be aligned with desired gopsToAlignWith
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+ trackDecodeInfo$2.clearDtsInfo(track);
+
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo$2.collectDtsInfo(track, gops);
+
+ // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+ track.samples = frameUtils$2.generateSampleTable(gops);
+
+ // Concatenate the video data and construct the mdat
+ mdat = mp4.mdat(frameUtils$2.concatenateNalData(gops));
+
+ track.baseMediaDecodeTime = trackDecodeInfo$2.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+
+ moof = mp4.moof(sequenceNumber, [track]);
+
+ // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // Bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ this.trigger('data', { track: track, boxes: boxes });
+
+ this.resetStream_();
+
+ // Continue with the flush process now
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo$2.clearDtsInfo(track);
+
+ // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+ config = undefined;
+ pps = undefined;
+ };
+
+ // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i;
+
+ // Search for the GOP nearest to the beginning of this nal unit
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop;
+
+ // Reject Gops with different SPS or PPS
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ }
+
+ // Reject Gops that would require a negative baseMediaDecodeTime
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ }
+
+ // The distance between the end of the gop and the start of the nalUnit
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration;
+
+ // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+ return null;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ }
+
+ // current gop starts before the current gop we want to align on. so increment gop
+ // index
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, { byteLength: 0, duration: 0, nalCount: 0 });
+
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new Stream$2();
+
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ */
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this);
+
+ // Take output from multiple
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ }
+ // buffer incoming id3 tags until the final flush
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ }
+
+ // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+ this.pendingTracks.push(output.track);
+ this.pendingBoxes.push(output.boxes);
+ this.pendingBytes += output.boxes.byteLength;
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ }
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new Stream$2();
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+
+ initSegment = mp4.initSegment(this.pendingTracks);
+
+ // Create a new typed array to hold the init segment
+ event.initSegment = new Uint8Array(initSegment.byteLength);
+
+ // Create an init segment containing a moov
+ // and track definitions
+ event.initSegment.set(initSegment);
+
+ // Create a new typed array to hold the moof+mdats
+ event.data = new Uint8Array(this.pendingBytes);
+
+ // Append each moof+mdat (one per track) together
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ }
+
+ // Translate caption PTS times into second offsets into the
+ // video timeline for the segment, and add track info
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = caption.startPts - timelineStartPts;
+ caption.startTime /= 90e3;
+ caption.endTime = caption.endPts - timelineStartPts;
+ caption.endTime /= 90e3;
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ }
+
+ // Translate ID3 frame PTS times into second offsets into the
+ // video timeline for the segment
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = id3.pts - timelineStartPts;
+ id3.cueTime /= 90e3;
+ event.metadata.push(id3);
+ }
+ // We add this to every single emitted segment even though we only need
+ // it for the first
+ event.metadata.dispatchType = this.metadataStream.dispatchType;
+
+ // Reset stream state
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0;
+
+ // Emit the built segment
+ this.trigger('data', event);
+
+ // Only emit `done` if all tracks have been flushed and emitted
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts$2.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.aacStream = new AacStream();
+ pipeline.audioTimestampRolloverStream = new m2ts$2.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts$2.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new AdtsStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ };
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts$2.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.packetStream = new m2ts$2.TransportPacketStream();
+ pipeline.parseStream = new m2ts$2.TransportParseStream();
+ pipeline.elementaryStream = new m2ts$2.ElementaryStream();
+ pipeline.videoTimestampRolloverStream = new m2ts$2.TimestampRolloverStream('video');
+ pipeline.audioTimestampRolloverStream = new m2ts$2.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts$2.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new AdtsStream();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts$2.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream;
+
+ // disassemble MPEG2-TS packets into elementary streams
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream);
+
+ // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+ pipeline.elementaryStream.pipe(pipeline.videoTimestampRolloverStream).pipe(pipeline.h264Stream);
+ pipeline.elementaryStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+
+ pipeline.elementaryStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ // Hook up CEA-608/708 caption stream
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length;
+
+ // scan the tracks listed in the metadata
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ }
+
+ // hook up the video segment stream to the first track with h264 data
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo;
+ // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+
+ // Set up the final part of the video pipeline
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ // hook up the segment streams once track metadata is delivered
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo$2.clearDtsInfo(audioTrack);
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ pipeline.videoTimestampRolloverStream.discontinuity();
+ }
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo$2.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.timedMetadataTimestampRolloverStream) {
+ pipeline.timedMetadataTimestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ };
+
+ // feed incoming data to the front of the parsing pipeline
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+ hasFlushed = false;
+ }
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ };
+
+ // flush any buffered data
+ this.flush = function () {
+ hasFlushed = true;
+ // Start at the top of the pipeline and flush all pending work
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ // Caption data has to be reset when seeking outside buffered range
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+ _Transmuxer.prototype = new Stream$2();
+
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES
+ };
+ var transmuxer_1 = transmuxer.Transmuxer;
+ var transmuxer_2 = transmuxer.VideoSegmentStream;
+ var transmuxer_3 = transmuxer.AudioSegmentStream;
+ var transmuxer_4 = transmuxer.AUDIO_PROPERTIES;
+ var transmuxer_5 = transmuxer.VIDEO_PROPERTIES;
+
+ var transmuxer$1 = /*#__PURE__*/Object.freeze({
+ default: transmuxer,
+ __moduleExports: transmuxer,
+ Transmuxer: transmuxer_1,
+ VideoSegmentStream: transmuxer_2,
+ AudioSegmentStream: transmuxer_3,
+ AUDIO_PROPERTIES: transmuxer_4,
+ VIDEO_PROPERTIES: transmuxer_5
+ });
+
+ var inspectMp4,
+ _textifyMp,
+ parseType$1 = probe.parseType,
+ parseMp4Date = function parseMp4Date(seconds) {
+ return new Date(seconds * 1000 - 2082844800000);
+ },
+ parseSampleFlags = function parseSampleFlags(flags) {
+ return {
+ isLeading: (flags[0] & 0x0c) >>> 2,
+ dependsOn: flags[0] & 0x03,
+ isDependedOn: (flags[1] & 0xc0) >>> 6,
+ hasRedundancy: (flags[1] & 0x30) >>> 4,
+ paddingValue: (flags[1] & 0x0e) >>> 1,
+ isNonSyncSample: flags[1] & 0x01,
+ degradationPriority: flags[2] << 8 | flags[3]
+ };
+ },
+ nalParse = function nalParse(avcStream) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ i,
+ length;
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ result.push('<span style=\'color:red;\'>MALFORMED DATA</span>');
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x01:
+ result.push('slice_layer_without_partitioning_rbsp');
+ break;
+ case 0x05:
+ result.push('slice_layer_without_partitioning_rbsp_idr');
+ break;
+ case 0x06:
+ result.push('sei_rbsp');
+ break;
+ case 0x07:
+ result.push('seq_parameter_set_rbsp');
+ break;
+ case 0x08:
+ result.push('pic_parameter_set_rbsp');
+ break;
+ case 0x09:
+ result.push('access_unit_delimiter_rbsp');
+ break;
+ default:
+ result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F);
+ break;
+ }
+ }
+ return result;
+ },
+
+
+ // registry of handlers for individual mp4 box types
+ parse$1 = {
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ avc1: function avc1(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ dataReferenceIndex: view.getUint16(6),
+ width: view.getUint16(24),
+ height: view.getUint16(26),
+ horizresolution: view.getUint16(28) + view.getUint16(30) / 16,
+ vertresolution: view.getUint16(32) + view.getUint16(34) / 16,
+ frameCount: view.getUint16(40),
+ depth: view.getUint16(74),
+ config: inspectMp4(data.subarray(78, data.byteLength))
+ };
+ },
+ avcC: function avcC(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ configurationVersion: data[0],
+ avcProfileIndication: data[1],
+ profileCompatibility: data[2],
+ avcLevelIndication: data[3],
+ lengthSizeMinusOne: data[4] & 0x03,
+ sps: [],
+ pps: []
+ },
+ numOfSequenceParameterSets = data[5] & 0x1f,
+ numOfPictureParameterSets,
+ nalSize,
+ offset,
+ i;
+
+ // iterate past any SPSs
+ offset = 6;
+ for (i = 0; i < numOfSequenceParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ // iterate past any PPSs
+ numOfPictureParameterSets = data[offset];
+ offset++;
+ for (i = 0; i < numOfPictureParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ return result;
+ },
+ btrt: function btrt(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ bufferSizeDB: view.getUint32(0),
+ maxBitrate: view.getUint32(4),
+ avgBitrate: view.getUint32(8)
+ };
+ },
+ esds: function esds(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ esId: data[6] << 8 | data[7],
+ streamPriority: data[8] & 0x1f,
+ decoderConfig: {
+ objectProfileIndication: data[11],
+ streamType: data[12] >>> 2 & 0x3f,
+ bufferSize: data[13] << 16 | data[14] << 8 | data[15],
+ maxBitrate: data[16] << 24 | data[17] << 16 | data[18] << 8 | data[19],
+ avgBitrate: data[20] << 24 | data[21] << 16 | data[22] << 8 | data[23],
+ decoderConfigDescriptor: {
+ tag: data[24],
+ length: data[25],
+ audioObjectType: data[26] >>> 3 & 0x1f,
+ samplingFrequencyIndex: (data[26] & 0x07) << 1 | data[27] >>> 7 & 0x01,
+ channelConfiguration: data[27] >>> 3 & 0x0f
+ }
+ }
+ };
+ },
+ ftyp: function ftyp(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ majorBrand: parseType$1(data.subarray(0, 4)),
+ minorVersion: view.getUint32(4),
+ compatibleBrands: []
+ },
+ i = 8;
+ while (i < data.byteLength) {
+ result.compatibleBrands.push(parseType$1(data.subarray(i, i + 4)));
+ i += 4;
+ }
+ return result;
+ },
+ dinf: function dinf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ dref: function dref(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ dataReferences: inspectMp4(data.subarray(8))
+ };
+ },
+ hdlr: function hdlr(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ handlerType: parseType$1(data.subarray(8, 12)),
+ name: ''
+ },
+ i = 8;
+
+ // parse out the name field
+ for (i = 24; i < data.byteLength; i++) {
+ if (data[i] === 0x00) {
+ // the name field is null-terminated
+ i++;
+ break;
+ }
+ result.name += String.fromCharCode(data[i]);
+ }
+ // decode UTF-8 to javascript's internal representation
+ // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ result.name = decodeURIComponent(escape(result.name));
+
+ return result;
+ },
+ mdat: function mdat(data) {
+ return {
+ byteLength: data.byteLength,
+ nals: nalParse(data)
+ };
+ },
+ mdhd: function mdhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ language,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ language: ''
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ // language is stored as an ISO-639-2/T code in an array of three 5-bit fields
+ // each field is the packed difference between its ASCII value and 0x60
+ language = view.getUint16(i);
+ result.language += String.fromCharCode((language >> 10) + 0x60);
+ result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60);
+ result.language += String.fromCharCode((language & 0x1f) + 0x60);
+
+ return result;
+ },
+ mdia: function mdia(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mfhd: function mfhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sequenceNumber: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ },
+ minf: function minf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ mp4a: function mp4a(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ // 6 bytes reserved
+ dataReferenceIndex: view.getUint16(6),
+ // 4 + 4 bytes reserved
+ channelcount: view.getUint16(16),
+ samplesize: view.getUint16(18),
+ // 2 bytes pre_defined
+ // 2 bytes reserved
+ samplerate: view.getUint16(24) + view.getUint16(26) / 65536
+ };
+
+ // if there are more bytes to process, assume this is an ISO/IEC
+ // 14496-14 MP4AudioSampleEntry and parse the ESDBox
+ if (data.byteLength > 28) {
+ result.streamDescriptor = inspectMp4(data.subarray(28))[0];
+ }
+ return result;
+ },
+ moof: function moof(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ moov: function moov(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvex: function mvex(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvhd: function mvhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+
+ // convert fixed-point, base 16 back to a number
+ result.rate = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ i += 2 * 4;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ i += 6 * 4;
+ result.nextTrackId = view.getUint32(i);
+ return result;
+ },
+ pdin: function pdin(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ rate: view.getUint32(4),
+ initialDelay: view.getUint32(8)
+ };
+ },
+ sdtp: function sdtp(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ i;
+
+ for (i = 4; i < data.byteLength; i++) {
+ result.samples.push({
+ dependsOn: (data[i] & 0x30) >> 4,
+ isDependedOn: (data[i] & 0x0c) >> 2,
+ hasRedundancy: data[i] & 0x03
+ });
+ }
+ return result;
+ },
+ sidx: function sidx(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ references: [],
+ referenceId: view.getUint32(4),
+ timescale: view.getUint32(8),
+ earliestPresentationTime: view.getUint32(12),
+ firstOffset: view.getUint32(16)
+ },
+ referenceCount = view.getUint16(22),
+ i;
+
+ for (i = 24; referenceCount; i += 12, referenceCount--) {
+ result.references.push({
+ referenceType: (data[i] & 0x80) >>> 7,
+ referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+ subsegmentDuration: view.getUint32(i + 4),
+ startsWithSap: !!(data[i + 8] & 0x80),
+ sapType: (data[i + 8] & 0x70) >>> 4,
+ sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+ });
+ }
+
+ return result;
+ },
+ smhd: function smhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ balance: data[4] + data[5] / 256
+ };
+ },
+ stbl: function stbl(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ stco: function stco(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ chunkOffsets: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+ for (i = 8; entryCount; i += 4, entryCount--) {
+ result.chunkOffsets.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stsc: function stsc(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ entryCount = view.getUint32(4),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleToChunks: []
+ },
+ i;
+ for (i = 8; entryCount; i += 12, entryCount--) {
+ result.sampleToChunks.push({
+ firstChunk: view.getUint32(i),
+ samplesPerChunk: view.getUint32(i + 4),
+ sampleDescriptionIndex: view.getUint32(i + 8)
+ });
+ }
+ return result;
+ },
+ stsd: function stsd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleDescriptions: inspectMp4(data.subarray(8))
+ };
+ },
+ stsz: function stsz(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleSize: view.getUint32(4),
+ entries: []
+ },
+ i;
+ for (i = 12; i < data.byteLength; i += 4) {
+ result.entries.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stts: function stts(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ timeToSamples: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+
+ for (i = 8; entryCount; i += 8, entryCount--) {
+ result.timeToSamples.push({
+ sampleCount: view.getUint32(i),
+ sampleDelta: view.getUint32(i + 4)
+ });
+ }
+ return result;
+ },
+ styp: function styp(data) {
+ return parse$1.ftyp(data);
+ },
+ tfdt: function tfdt(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ baseMediaDecodeTime: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ if (result.version === 1) {
+ result.baseMediaDecodeTime *= Math.pow(2, 32);
+ result.baseMediaDecodeTime += data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11];
+ }
+ return result;
+ },
+ tfhd: function tfhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4)
+ },
+ baseDataOffsetPresent = result.flags[2] & 0x01,
+ sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+ defaultSampleDurationPresent = result.flags[2] & 0x08,
+ defaultSampleSizePresent = result.flags[2] & 0x10,
+ defaultSampleFlagsPresent = result.flags[2] & 0x20,
+ durationIsEmpty = result.flags[0] & 0x010000,
+ defaultBaseIsMoof = result.flags[0] & 0x020000,
+ i;
+
+ i = 8;
+ if (baseDataOffsetPresent) {
+ i += 4; // truncate top 4 bytes
+ // FIXME: should we read the full 64 bits?
+ result.baseDataOffset = view.getUint32(12);
+ i += 4;
+ }
+ if (sampleDescriptionIndexPresent) {
+ result.sampleDescriptionIndex = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleDurationPresent) {
+ result.defaultSampleDuration = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleSizePresent) {
+ result.defaultSampleSize = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleFlagsPresent) {
+ result.defaultSampleFlags = view.getUint32(i);
+ }
+ if (durationIsEmpty) {
+ result.durationIsEmpty = true;
+ }
+ if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+ result.baseDataOffsetIsMoof = true;
+ }
+ return result;
+ },
+ tkhd: function tkhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ i += 2 * 4;
+ result.layer = view.getUint16(i);
+ i += 2;
+ result.alternateGroup = view.getUint16(i);
+ i += 2;
+ // convert fixed-point, base 16 back to a number
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ result.width = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.height = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ return result;
+ },
+ traf: function traf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trak: function trak(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trex: function trex(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4),
+ defaultSampleDescriptionIndex: view.getUint32(8),
+ defaultSampleDuration: view.getUint32(12),
+ defaultSampleSize: view.getUint32(16),
+ sampleDependsOn: data[20] & 0x03,
+ sampleIsDependedOn: (data[21] & 0xc0) >> 6,
+ sampleHasRedundancy: (data[21] & 0x30) >> 4,
+ samplePaddingValue: (data[21] & 0x0e) >> 1,
+ sampleIsDifferenceSample: !!(data[21] & 0x01),
+ sampleDegradationPriority: view.getUint16(22)
+ };
+ },
+ trun: function trun(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+
+ // Flag interpretation
+ dataOffsetPresent = result.flags[2] & 0x01,
+ // compare with 2nd byte of 0x1
+ firstSampleFlagsPresent = result.flags[2] & 0x04,
+ // compare with 2nd byte of 0x4
+ sampleDurationPresent = result.flags[1] & 0x01,
+ // compare with 2nd byte of 0x100
+ sampleSizePresent = result.flags[1] & 0x02,
+ // compare with 2nd byte of 0x200
+ sampleFlagsPresent = result.flags[1] & 0x04,
+ // compare with 2nd byte of 0x400
+ sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+ // compare with 2nd byte of 0x800
+ sampleCount = view.getUint32(4),
+ offset = 8,
+ sample;
+
+ if (dataOffsetPresent) {
+ // 32 bit signed integer
+ result.dataOffset = view.getInt32(offset);
+ offset += 4;
+ }
+
+ // Overrides the flags for the first sample only. The order of
+ // optional values will be: duration, size, compositionTimeOffset
+ if (firstSampleFlagsPresent && sampleCount) {
+ sample = {
+ flags: parseSampleFlags(data.subarray(offset, offset + 4))
+ };
+ offset += 4;
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ sampleCount--;
+ }
+
+ while (sampleCount--) {
+ sample = {};
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleFlagsPresent) {
+ sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ }
+ return result;
+ },
+ 'url ': function url(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ },
+ vmhd: function vmhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ graphicsmode: view.getUint16(4),
+ opcolor: new Uint16Array([view.getUint16(6), view.getUint16(8), view.getUint16(10)])
+ };
+ }
+ };
+
+ /**
+ * Return a javascript array of box objects parsed from an ISO base
+ * media file.
+ * @param data {Uint8Array} the binary data of the media to be inspected
+ * @return {array} a javascript array of potentially nested box objects
+ */
+ inspectMp4 = function inspectMp4(data) {
+ var i = 0,
+ result = [],
+ view,
+ size,
+ type,
+ end,
+ box;
+
+ // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API
+ var ab = new ArrayBuffer(data.length);
+ var v = new Uint8Array(ab);
+ for (var z = 0; z < data.length; ++z) {
+ v[z] = data[z];
+ }
+ view = new DataView(ab);
+
+ while (i < data.byteLength) {
+ // parse box data
+ size = view.getUint32(i);
+ type = parseType$1(data.subarray(i + 4, i + 8));
+ end = size > 1 ? i + size : data.byteLength;
+
+ // parse type-specific data
+ box = (parse$1[type] || function (data) {
+ return {
+ data: data
+ };
+ })(data.subarray(i + 8, end));
+ box.size = size;
+ box.type = type;
+
+ // store this box and move to the next
+ result.push(box);
+ i = end;
+ }
+ return result;
+ };
+
+ /**
+ * Returns a textual representation of the javascript represtentation
+ * of an MP4 file. You can use it as an alternative to
+ * JSON.stringify() to compare inspected MP4s.
+ * @param inspectedMp4 {array} the parsed array of boxes in an MP4
+ * file
+ * @param depth {number} (optional) the number of ancestor boxes of
+ * the elements of inspectedMp4. Assumed to be zero if unspecified.
+ * @return {string} a text representation of the parsed MP4
+ */
+ _textifyMp = function textifyMp4(inspectedMp4, depth) {
+ var indent;
+ depth = depth || 0;
+ indent = new Array(depth * 2 + 1).join(' ');
+
+ // iterate over all the boxes
+ return inspectedMp4.map(function (box, index) {
+
+ // list the box type first at the current indentation level
+ return indent + box.type + '\n' +
+
+ // the type is already included and handle child boxes separately
+ Object.keys(box).filter(function (key) {
+ return key !== 'type' && key !== 'boxes';
+
+ // output all the box properties
+ }).map(function (key) {
+ var prefix = indent + ' ' + key + ': ',
+ value = box[key];
+
+ // print out raw bytes as hexademical
+ if (value instanceof Uint8Array || value instanceof Uint32Array) {
+ var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)).map(function (byte) {
+ return ' ' + ('00' + byte.toString(16)).slice(-2);
+ }).join('').match(/.{1,24}/g);
+ if (!bytes) {
+ return prefix + '<>';
+ }
+ if (bytes.length === 1) {
+ return prefix + '<' + bytes.join('').slice(1) + '>';
+ }
+ return prefix + '<\n' + bytes.map(function (line) {
+ return indent + ' ' + line;
+ }).join('\n') + '\n' + indent + ' >';
+ }
+
+ // stringify generic objects
+ return prefix + JSON.stringify(value, null, 2).split('\n').map(function (line, index) {
+ if (index === 0) {
+ return line;
+ }
+ return indent + ' ' + line;
+ }).join('\n');
+ }).join('\n') + (
+
+ // recursively textify the child boxes
+ box.boxes ? '\n' + _textifyMp(box.boxes, depth + 1) : '');
+ }).join('\n');
+ };
+
+ var mp4Inspector = {
+ inspect: inspectMp4,
+ textify: _textifyMp,
+ parseTfdt: parse$1.tfdt,
+ parseHdlr: parse$1.hdlr,
+ parseTfhd: parse$1.tfhd,
+ parseTrun: parse$1.trun
+ };
+ var mp4Inspector_1 = mp4Inspector.inspect;
+ var mp4Inspector_2 = mp4Inspector.textify;
+ var mp4Inspector_3 = mp4Inspector.parseTfdt;
+ var mp4Inspector_4 = mp4Inspector.parseHdlr;
+ var mp4Inspector_5 = mp4Inspector.parseTfhd;
+ var mp4Inspector_6 = mp4Inspector.parseTrun;
+
+ var mp4Inspector$1 = /*#__PURE__*/Object.freeze({
+ default: mp4Inspector,
+ __moduleExports: mp4Inspector,
+ inspect: mp4Inspector_1,
+ textify: mp4Inspector_2,
+ parseTfdt: mp4Inspector_3,
+ parseHdlr: mp4Inspector_4,
+ parseTfhd: mp4Inspector_5,
+ parseTrun: mp4Inspector_6
+ });
+
+ var inspect = ( mp4Inspector$1 && mp4Inspector ) || mp4Inspector$1;
+
+ var discardEmulationPreventionBytes$1 = cea708Parser.discardEmulationPreventionBytes;
+ var CaptionStream$2 = CaptionStream$1.CaptionStream;
+
+ /**
+ * Maps an offset in the mdat to a sample based on the the size of the samples.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Number} offset - The offset into the mdat
+ * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+ * @return {?Object} The matching sample, or null if no match was found.
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var mapToSample = function mapToSample(offset, samples) {
+ var approximateOffset = offset;
+
+ for (var i = 0; i < samples.length; i++) {
+ var sample = samples[i];
+
+ if (approximateOffset < sample.size) {
+ return sample;
+ }
+
+ approximateOffset -= sample.size;
+ }
+
+ return null;
+ };
+
+ /**
+ * Finds SEI nal units contained in a Media Data Box.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Uint8Array} avcStream - The bytes of the mdat
+ * @param {Object[]} samples - The samples parsed out by `parseSamples`
+ * @param {Number} trackId - The trackId of this video track
+ * @return {Object[]} seiNals - the parsed SEI NALUs found.
+ * The contents of the seiNal should match what is expected by
+ * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+ *
+ * @see ISO-BMFF-12/2015, Section 8.1.1
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ **/
+ var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ seiNal,
+ i,
+ length,
+ lastMatchedSample;
+
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // Bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x06:
+ var data = avcStream.subarray(i + 1, i + 1 + length);
+ var matchingSample = mapToSample(i, samples);
+
+ seiNal = {
+ nalUnitType: 'sei_rbsp',
+ size: length,
+ data: data,
+ escapedRBSP: discardEmulationPreventionBytes$1(data),
+ trackId: trackId
+ };
+
+ if (matchingSample) {
+ seiNal.pts = matchingSample.pts;
+ seiNal.dts = matchingSample.dts;
+ lastMatchedSample = matchingSample;
+ } else {
+ // If a matching sample cannot be found, use the last
+ // sample's values as they should be as close as possible
+ seiNal.pts = lastMatchedSample.pts;
+ seiNal.dts = lastMatchedSample.dts;
+ }
+
+ result.push(seiNal);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ /**
+ * Parses sample information out of Track Run Boxes and calculates
+ * the absolute presentation and decode timestamps of each sample.
+ *
+ * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+ * @param {Number} baseMediaDecodeTime - base media decode time from tfdt
+ @see ISO-BMFF-12/2015, Section 8.8.12
+ * @param {Object} tfhd - The parsed Track Fragment Header
+ * @see inspect.parseTfhd
+ * @return {Object[]} the parsed samples
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
+ var currentDts = baseMediaDecodeTime;
+ var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+ var defaultSampleSize = tfhd.defaultSampleSize || 0;
+ var trackId = tfhd.trackId;
+ var allSamples = [];
+
+ truns.forEach(function (trun) {
+ // Note: We currently do not parse the sample table as well
+ // as the trun. It's possible some sources will require this.
+ // moov > trak > mdia > minf > stbl
+ var trackRun = inspect.parseTrun(trun);
+ var samples = trackRun.samples;
+
+ samples.forEach(function (sample) {
+ if (sample.duration === undefined) {
+ sample.duration = defaultSampleDuration;
+ }
+ if (sample.size === undefined) {
+ sample.size = defaultSampleSize;
+ }
+ sample.trackId = trackId;
+ sample.dts = currentDts;
+ if (sample.compositionTimeOffset === undefined) {
+ sample.compositionTimeOffset = 0;
+ }
+ sample.pts = currentDts + sample.compositionTimeOffset;
+
+ currentDts += sample.duration;
+ });
+
+ allSamples = allSamples.concat(samples);
+ });
+
+ return allSamples;
+ };
+
+ /**
+ * Parses out caption nals from an FMP4 segment's video tracks.
+ *
+ * @param {Uint8Array} segment - The bytes of a single segment
+ * @param {Number} videoTrackId - The trackId of a video track in the segment
+ * @return {Object.<Number, Object[]>} A mapping of video trackId to
+ * a list of seiNals found in that track
+ **/
+ var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
+ // To get the samples
+ var trafs = probe.findBox(segment, ['moof', 'traf']);
+ // To get SEI NAL units
+ var mdats = probe.findBox(segment, ['mdat']);
+ var captionNals = {};
+ var mdatTrafPairs = [];
+
+ // Pair up each traf with a mdat as moofs and mdats are in pairs
+ mdats.forEach(function (mdat, index) {
+ var matchingTraf = trafs[index];
+ mdatTrafPairs.push({
+ mdat: mdat,
+ traf: matchingTraf
+ });
+ });
+
+ mdatTrafPairs.forEach(function (pair) {
+ var mdat = pair.mdat;
+ var traf = pair.traf;
+ var tfhd = probe.findBox(traf, ['tfhd']);
+ // Exactly 1 tfhd per traf
+ var headerInfo = inspect.parseTfhd(tfhd[0]);
+ var trackId = headerInfo.trackId;
+ var tfdt = probe.findBox(traf, ['tfdt']);
+ // Either 0 or 1 tfdt per traf
+ var baseMediaDecodeTime = tfdt.length > 0 ? inspect.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
+ var truns = probe.findBox(traf, ['trun']);
+ var samples;
+ var seiNals;
+
+ // Only parse video data for the chosen video track
+ if (videoTrackId === trackId && truns.length > 0) {
+ samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+
+ seiNals = findSeiNals(mdat, samples, trackId);
+
+ if (!captionNals[trackId]) {
+ captionNals[trackId] = [];
+ }
+
+ captionNals[trackId] = captionNals[trackId].concat(seiNals);
+ }
+ });
+
+ return captionNals;
+ };
+
+ /**
+ * Parses out inband captions from an MP4 container and returns
+ * caption objects that can be used by WebVTT and the TextTrack API.
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+ * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number} trackId - The id of the video track to parse
+ * @param {Number} timescale - The timescale for the video track from the init segment
+ *
+ * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+ * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+ * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+ * @return {String} parsedCaptions[].text - The visible content of the caption
+ **/
+ var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
+ var seiNals;
+
+ if (!trackId) {
+ return null;
+ }
+
+ seiNals = parseCaptionNals(segment, trackId);
+
+ return {
+ seiNals: seiNals[trackId],
+ timescale: timescale
+ };
+ };
+
+ /**
+ * Converts SEI NALUs into captions that can be used by video.js
+ **/
+ var CaptionParser = function CaptionParser() {
+ var isInitialized = false;
+ var captionStream;
+
+ // Stores segments seen before trackId and timescale are set
+ var segmentCache;
+ // Stores video track ID of the track being parsed
+ var trackId;
+ // Stores the timescale of the track being parsed
+ var timescale;
+ // Stores captions parsed so far
+ var parsedCaptions;
+
+ /**
+ * A method to indicate whether a CaptionParser has been initalized
+ * @returns {Boolean}
+ **/
+ this.isInitialized = function () {
+ return isInitialized;
+ };
+
+ /**
+ * Initializes the underlying CaptionStream, SEI NAL parsing
+ * and management, and caption collection
+ **/
+ this.init = function () {
+ captionStream = new CaptionStream$2();
+ isInitialized = true;
+
+ // Collect dispatched captions
+ captionStream.on('data', function (event) {
+ // Convert to seconds in the source's timescale
+ event.startTime = event.startPts / timescale;
+ event.endTime = event.endPts / timescale;
+
+ parsedCaptions.captions.push(event);
+ parsedCaptions.captionStreams[event.stream] = true;
+ });
+ };
+
+ /**
+ * Determines if a new video track will be selected
+ * or if the timescale changed
+ * @return {Boolean}
+ **/
+ this.isNewInit = function (videoTrackIds, timescales) {
+ if (videoTrackIds && videoTrackIds.length === 0 || timescales && (typeof timescales === 'undefined' ? 'undefined' : _typeof(timescales)) === 'object' && Object.keys(timescales).length === 0) {
+ return false;
+ }
+
+ return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+ };
+
+ /**
+ * Parses out SEI captions and interacts with underlying
+ * CaptionStream to return dispatched captions
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+ * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+ * @see parseEmbeddedCaptions
+ * @see m2ts/caption-stream.js
+ **/
+ this.parse = function (segment, videoTrackIds, timescales) {
+ var parsedData;
+
+ if (!this.isInitialized()) {
+ return null;
+
+ // This is not likely to be a video segment
+ } else if (!videoTrackIds || !timescales) {
+ return null;
+ } else if (this.isNewInit(videoTrackIds, timescales)) {
+ // Use the first video track only as there is no
+ // mechanism to switch to other video tracks
+ trackId = videoTrackIds[0];
+ timescale = timescales[trackId];
+
+ // If an init segment has not been seen yet, hold onto segment
+ // data until we have one
+ } else if (!trackId || !timescale) {
+ segmentCache.push(segment);
+ return null;
+ }
+
+ // Now that a timescale and trackId is set, parse cached segments
+ while (segmentCache.length > 0) {
+ var cachedSegment = segmentCache.shift();
+
+ this.parse(cachedSegment, videoTrackIds, timescales);
+ }
+
+ parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+
+ if (parsedData === null || !parsedData.seiNals) {
+ return null;
+ }
+
+ this.pushNals(parsedData.seiNals);
+ // Force the parsed captions to be dispatched
+ this.flushStream();
+
+ return parsedCaptions;
+ };
+
+ /**
+ * Pushes SEI NALUs onto CaptionStream
+ * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+ * Assumes that `parseCaptionNals` has been called first
+ * @see m2ts/caption-stream.js
+ **/
+ this.pushNals = function (nals) {
+ if (!this.isInitialized() || !nals || nals.length === 0) {
+ return null;
+ }
+
+ nals.forEach(function (nal) {
+ captionStream.push(nal);
+ });
+ };
+
+ /**
+ * Flushes underlying CaptionStream to dispatch processed, displayable captions
+ * @see m2ts/caption-stream.js
+ **/
+ this.flushStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream.flush();
+ };
+
+ /**
+ * Reset caption buckets for new data
+ **/
+ this.clearParsedCaptions = function () {
+ parsedCaptions.captions = [];
+ parsedCaptions.captionStreams = {};
+ };
+
+ /**
+ * Resets underlying CaptionStream
+ * @see m2ts/caption-stream.js
+ **/
+ this.resetCaptionStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream.reset();
+ };
+
+ /**
+ * Convenience method to clear all captions flushed from the
+ * CaptionStream and still being parsed
+ * @see m2ts/caption-stream.js
+ **/
+ this.clearAllCaptions = function () {
+ this.clearParsedCaptions();
+ this.resetCaptionStream();
+ };
+
+ /**
+ * Reset caption parser
+ **/
+ this.reset = function () {
+ segmentCache = [];
+ trackId = null;
+ timescale = null;
+
+ if (!parsedCaptions) {
+ parsedCaptions = {
+ captions: [],
+ // CC1, CC2, CC3, CC4
+ captionStreams: {}
+ };
+ } else {
+ this.clearParsedCaptions();
+ }
+
+ this.resetCaptionStream();
+ };
+
+ this.reset();
+ };
+
+ var captionParser = CaptionParser;
+
+ var captionParser$1 = /*#__PURE__*/Object.freeze({
+ default: captionParser,
+ __moduleExports: captionParser
+ });
+
+ var require$$2$1 = ( transmuxer$1 && transmuxer ) || transmuxer$1;
+
+ var require$$3 = ( captionParser$1 && captionParser ) || captionParser$1;
+
+ var mp4$1 = {
+ generator: mp4,
+ probe: probe,
+ Transmuxer: require$$2$1.Transmuxer,
+ AudioSegmentStream: require$$2$1.AudioSegmentStream,
+ VideoSegmentStream: require$$2$1.VideoSegmentStream,
+ CaptionParser: require$$3
+ };
+ var mp4_6 = mp4$1.CaptionParser;
+
+ var parsePid = function parsePid(packet) {
+ var pid = packet[1] & 0x1f;
+ pid <<= 8;
+ pid |= packet[2];
+ return pid;
+ };
+
+ var parsePayloadUnitStartIndicator = function parsePayloadUnitStartIndicator(packet) {
+ return !!(packet[1] & 0x40);
+ };
+
+ var parseAdaptionField = function parseAdaptionField(packet) {
+ var offset = 0;
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[4] + 1;
+ }
+ return offset;
+ };
+
+ var parseType$2 = function parseType(packet, pmtPid) {
+ var pid = parsePid(packet);
+ if (pid === 0) {
+ return 'pat';
+ } else if (pid === pmtPid) {
+ return 'pmt';
+ } else if (pmtPid) {
+ return 'pes';
+ }
+ return null;
+ };
+
+ var parsePat = function parsePat(packet) {
+ var pusi = parsePayloadUnitStartIndicator(packet);
+ var offset = 4 + parseAdaptionField(packet);
+
+ if (pusi) {
+ offset += packet[offset] + 1;
+ }
+
+ return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];
+ };
+
+ var parsePmt = function parsePmt(packet) {
+ var programMapTable = {};
+ var pusi = parsePayloadUnitStartIndicator(packet);
+ var payloadOffset = 4 + parseAdaptionField(packet);
+
+ if (pusi) {
+ payloadOffset += packet[payloadOffset] + 1;
+ }
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(packet[payloadOffset + 5] & 0x01)) {
+ return;
+ }
+
+ var sectionLength, tableEnd, programInfoLength;
+ // the mapping table ends at the end of the current section
+ sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11];
+
+ // advance the offset to the first entry in the mapping table
+ var offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var i = payloadOffset + offset;
+ // add an entry that maps the elementary_pid to the stream_type
+ programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i];
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;
+ }
+ return programMapTable;
+ };
+
+ var parsePesType = function parsePesType(packet, programMapTable) {
+ var pid = parsePid(packet);
+ var type = programMapTable[pid];
+ switch (type) {
+ case StreamTypes.H264_STREAM_TYPE:
+ return 'video';
+ case StreamTypes.ADTS_STREAM_TYPE:
+ return 'audio';
+ case StreamTypes.METADATA_STREAM_TYPE:
+ return 'timed-metadata';
+ default:
+ return null;
+ }
+ };
+
+ var parsePesTime = function parsePesTime(packet) {
+ var pusi = parsePayloadUnitStartIndicator(packet);
+ if (!pusi) {
+ return null;
+ }
+
+ var offset = 4 + parseAdaptionField(packet);
+
+ if (offset >= packet.byteLength) {
+ // From the H 222.0 MPEG-TS spec
+ // "For transport stream packets carrying PES packets, stuffing is needed when there
+ // is insufficient PES packet data to completely fill the transport stream packet
+ // payload bytes. Stuffing is accomplished by defining an adaptation field longer than
+ // the sum of the lengths of the data elements in it, so that the payload bytes
+ // remaining after the adaptation field exactly accommodates the available PES packet
+ // data."
+ //
+ // If the offset is >= the length of the packet, then the packet contains no data
+ // and instead is just adaption field stuffing bytes
+ return null;
+ }
+
+ var pes = null;
+ var ptsDtsFlags;
+
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = packet[offset + 7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ pes = {};
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ return pes;
+ };
+
+ var parseNalUnitType = function parseNalUnitType(type) {
+ switch (type) {
+ case 0x05:
+ return 'slice_layer_without_partitioning_rbsp_idr';
+ case 0x06:
+ return 'sei_rbsp';
+ case 0x07:
+ return 'seq_parameter_set_rbsp';
+ case 0x08:
+ return 'pic_parameter_set_rbsp';
+ case 0x09:
+ return 'access_unit_delimiter_rbsp';
+ default:
+ return null;
+ }
+ };
+
+ var videoPacketContainsKeyFrame = function videoPacketContainsKeyFrame(packet) {
+ var offset = 4 + parseAdaptionField(packet);
+ var frameBuffer = packet.subarray(offset);
+ var frameI = 0;
+ var frameSyncPoint = 0;
+ var foundKeyFrame = false;
+ var nalType;
+
+ // advance the sync point to a NAL start, if necessary
+ for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {
+ if (frameBuffer[frameSyncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ frameI = frameSyncPoint + 5;
+ break;
+ }
+ }
+
+ while (frameI < frameBuffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (frameBuffer[frameI]) {
+ case 0:
+ // skip past non-sync sequences
+ if (frameBuffer[frameI - 1] !== 0) {
+ frameI += 2;
+ break;
+ } else if (frameBuffer[frameI - 2] !== 0) {
+ frameI++;
+ break;
+ }
+
+ if (frameSyncPoint + 3 !== frameI - 2) {
+ nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+ if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+ foundKeyFrame = true;
+ }
+ }
+
+ // drop trailing zeroes
+ do {
+ frameI++;
+ } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);
+ frameSyncPoint = frameI - 2;
+ frameI += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {
+ frameI += 3;
+ break;
+ }
+
+ nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+ if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+ foundKeyFrame = true;
+ }
+ frameSyncPoint = frameI - 2;
+ frameI += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ frameI += 3;
+ break;
+ }
+ }
+ frameBuffer = frameBuffer.subarray(frameSyncPoint);
+ frameI -= frameSyncPoint;
+ frameSyncPoint = 0;
+ // parse the final nal
+ if (frameBuffer && frameBuffer.byteLength > 3) {
+ nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+ if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+ foundKeyFrame = true;
+ }
+ }
+
+ return foundKeyFrame;
+ };
+
+ var probe$1 = {
+ parseType: parseType$2,
+ parsePat: parsePat,
+ parsePmt: parsePmt,
+ parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,
+ parsePesType: parsePesType,
+ parsePesTime: parsePesTime,
+ videoPacketContainsKeyFrame: videoPacketContainsKeyFrame
+ };
+ var probe_1$1 = probe$1.parseType;
+ var probe_2$1 = probe$1.parsePat;
+ var probe_3$1 = probe$1.parsePmt;
+ var probe_4$1 = probe$1.parsePayloadUnitStartIndicator;
+ var probe_5$1 = probe$1.parsePesType;
+ var probe_6 = probe$1.parsePesTime;
+ var probe_7 = probe$1.videoPacketContainsKeyFrame;
+
+ var probe$2 = /*#__PURE__*/Object.freeze({
+ default: probe$1,
+ __moduleExports: probe$1,
+ parseType: probe_1$1,
+ parsePat: probe_2$1,
+ parsePmt: probe_3$1,
+ parsePayloadUnitStartIndicator: probe_4$1,
+ parsePesType: probe_5$1,
+ parsePesTime: probe_6,
+ videoPacketContainsKeyFrame: probe_7
+ });
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2016 Brightcove
+ * All rights reserved.
+ *
+ * Utilities to detect basic properties and metadata about Aac data.
+ */
+
+ var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ var parseSyncSafeInteger$1 = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ };
+
+ // return a percent-encoded representation of the specified byte range
+ // @see http://en.wikipedia.org/wiki/Percent-encoding
+ var percentEncode$1 = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ };
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ var parseIso88591$1 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line
+ };
+
+ var parseId3TagSize = function parseId3TagSize(header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ var parseAdtsSize = function parseAdtsSize(header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ var parseType$3 = function parseType(header, byteIndex) {
+ if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {
+ return 'timed-metadata';
+ } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {
+ return 'audio';
+ }
+ return null;
+ };
+
+ var parseSampleRate = function parseSampleRate(packet) {
+ var i = 0;
+
+ while (i + 5 < packet.length) {
+ if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+ return ADTS_SAMPLING_FREQUENCIES$1[(packet[i + 2] & 0x3c) >>> 2];
+ }
+
+ return null;
+ };
+
+ var parseAacTimestamp = function parseAacTimestamp(packet) {
+ var frameStart, frameSize, frame, frameHeader;
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (packet[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger$1(packet.subarray(10, 14));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger$1(packet.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ return null;
+ }
+ frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);
+
+ if (frameHeader === 'PRIV') {
+ frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);
+
+ for (var i = 0; i < frame.byteLength; i++) {
+ if (frame[i] === 0) {
+ var owner = parseIso88591$1(frame, 0, i);
+ if (owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.subarray(i + 1);
+ var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+ size *= 4;
+ size += d[7] & 0x03;
+
+ return size;
+ }
+ break;
+ }
+ }
+ }
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < packet.byteLength);
+ return null;
+ };
+
+ var probe$3 = {
+ parseId3TagSize: parseId3TagSize,
+ parseAdtsSize: parseAdtsSize,
+ parseType: parseType$3,
+ parseSampleRate: parseSampleRate,
+ parseAacTimestamp: parseAacTimestamp
+ };
+ var probe_1$2 = probe$3.parseId3TagSize;
+ var probe_2$2 = probe$3.parseAdtsSize;
+ var probe_3$2 = probe$3.parseType;
+ var probe_4$2 = probe$3.parseSampleRate;
+ var probe_5$2 = probe$3.parseAacTimestamp;
+
+ var probe$4 = /*#__PURE__*/Object.freeze({
+ default: probe$3,
+ __moduleExports: probe$3,
+ parseId3TagSize: probe_1$2,
+ parseAdtsSize: probe_2$2,
+ parseType: probe_3$2,
+ parseSampleRate: probe_4$2,
+ parseAacTimestamp: probe_5$2
+ });
+
+ var require$$1$2 = ( probe$2 && probe$1 ) || probe$2;
+
+ var require$$2$2 = ( probe$4 && probe$3 ) || probe$4;
+
+ var handleRollover$1 = require$$0$2.handleRollover;
+ var probe$5 = {};
+ probe$5.ts = require$$1$2;
+ probe$5.aac = require$$2$2;
+
+ var PES_TIMESCALE = 90000,
+ MP2T_PACKET_LENGTH$1 = 188,
+ // bytes
+ SYNC_BYTE$1 = 0x47;
+
+ var isLikelyAacData$1 = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * walks through segment data looking for pat and pmt packets to parse out
+ * program map table information
+ */
+ var parsePsi_ = function parsePsi_(bytes, pmt) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH$1,
+ packet,
+ type;
+
+ while (endIndex < bytes.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$5.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pat':
+ if (!pmt.pid) {
+ pmt.pid = probe$5.ts.parsePat(packet);
+ }
+ break;
+ case 'pmt':
+ if (!pmt.table) {
+ pmt.table = probe$5.ts.parsePmt(packet);
+ }
+ break;
+ default:
+ break;
+ }
+
+ // Found the pat and pmt, we can stop walking the segment
+ if (pmt.pid && pmt.table) {
+ return;
+ }
+
+ startIndex += MP2T_PACKET_LENGTH$1;
+ endIndex += MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+ };
+
+ /**
+ * walks through the segment data from the start and end to get timing information
+ * for the first and last audio pes packets
+ */
+ var parseAudioPes_ = function parseAudioPes_(bytes, pmt, result) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH$1,
+ packet,
+ type,
+ pesType,
+ pusi,
+ parsed;
+
+ var endLoop = false;
+
+ // Start walking from start of segment to get first audio packet
+ while (endIndex < bytes.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$5.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$5.ts.parsePesType(packet, pmt.table);
+ pusi = probe$5.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'audio' && pusi) {
+ parsed = probe$5.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'audio';
+ result.audio.push(parsed);
+ endLoop = true;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop) {
+ break;
+ }
+
+ startIndex += MP2T_PACKET_LENGTH$1;
+ endIndex += MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // Start walking from end of segment to get last audio packet
+ endIndex = bytes.byteLength;
+ startIndex = endIndex - MP2T_PACKET_LENGTH$1;
+ endLoop = false;
+ while (startIndex >= 0) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$5.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$5.ts.parsePesType(packet, pmt.table);
+ pusi = probe$5.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'audio' && pusi) {
+ parsed = probe$5.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'audio';
+ result.audio.push(parsed);
+ endLoop = true;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop) {
+ break;
+ }
+
+ startIndex -= MP2T_PACKET_LENGTH$1;
+ endIndex -= MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex--;
+ endIndex--;
+ }
+ };
+
+ /**
+ * walks through the segment data from the start and end to get timing information
+ * for the first and last video pes packets as well as timing information for the first
+ * key frame.
+ */
+ var parseVideoPes_ = function parseVideoPes_(bytes, pmt, result) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH$1,
+ packet,
+ type,
+ pesType,
+ pusi,
+ parsed,
+ frame,
+ i,
+ pes;
+
+ var endLoop = false;
+
+ var currentFrame = {
+ data: [],
+ size: 0
+ };
+
+ // Start walking from start of segment to get first video packet
+ while (endIndex < bytes.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$5.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$5.ts.parsePesType(packet, pmt.table);
+ pusi = probe$5.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'video') {
+ if (pusi && !endLoop) {
+ parsed = probe$5.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'video';
+ result.video.push(parsed);
+ endLoop = true;
+ }
+ }
+ if (!result.firstKeyFrame) {
+ if (pusi) {
+ if (currentFrame.size !== 0) {
+ frame = new Uint8Array(currentFrame.size);
+ i = 0;
+ while (currentFrame.data.length) {
+ pes = currentFrame.data.shift();
+ frame.set(pes, i);
+ i += pes.byteLength;
+ }
+ if (probe$5.ts.videoPacketContainsKeyFrame(frame)) {
+ result.firstKeyFrame = probe$5.ts.parsePesTime(frame);
+ result.firstKeyFrame.type = 'video';
+ }
+ currentFrame.size = 0;
+ }
+ }
+ currentFrame.data.push(packet);
+ currentFrame.size += packet.byteLength;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop && result.firstKeyFrame) {
+ break;
+ }
+
+ startIndex += MP2T_PACKET_LENGTH$1;
+ endIndex += MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // Start walking from end of segment to get last video packet
+ endIndex = bytes.byteLength;
+ startIndex = endIndex - MP2T_PACKET_LENGTH$1;
+ endLoop = false;
+ while (startIndex >= 0) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (bytes[startIndex] === SYNC_BYTE$1 && bytes[endIndex] === SYNC_BYTE$1) {
+ // We found a packet
+ packet = bytes.subarray(startIndex, endIndex);
+ type = probe$5.ts.parseType(packet, pmt.pid);
+
+ switch (type) {
+ case 'pes':
+ pesType = probe$5.ts.parsePesType(packet, pmt.table);
+ pusi = probe$5.ts.parsePayloadUnitStartIndicator(packet);
+ if (pesType === 'video' && pusi) {
+ parsed = probe$5.ts.parsePesTime(packet);
+ if (parsed) {
+ parsed.type = 'video';
+ result.video.push(parsed);
+ endLoop = true;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (endLoop) {
+ break;
+ }
+
+ startIndex -= MP2T_PACKET_LENGTH$1;
+ endIndex -= MP2T_PACKET_LENGTH$1;
+ continue;
+ }
+
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex--;
+ endIndex--;
+ }
+ };
+
+ /**
+ * Adjusts the timestamp information for the segment to account for
+ * rollover and convert to seconds based on pes packet timescale (90khz clock)
+ */
+ var adjustTimestamp_ = function adjustTimestamp_(segmentInfo, baseTimestamp) {
+ if (segmentInfo.audio && segmentInfo.audio.length) {
+ var audioBaseTimestamp = baseTimestamp;
+ if (typeof audioBaseTimestamp === 'undefined') {
+ audioBaseTimestamp = segmentInfo.audio[0].dts;
+ }
+ segmentInfo.audio.forEach(function (info) {
+ info.dts = handleRollover$1(info.dts, audioBaseTimestamp);
+ info.pts = handleRollover$1(info.pts, audioBaseTimestamp);
+ // time in seconds
+ info.dtsTime = info.dts / PES_TIMESCALE;
+ info.ptsTime = info.pts / PES_TIMESCALE;
+ });
+ }
+
+ if (segmentInfo.video && segmentInfo.video.length) {
+ var videoBaseTimestamp = baseTimestamp;
+ if (typeof videoBaseTimestamp === 'undefined') {
+ videoBaseTimestamp = segmentInfo.video[0].dts;
+ }
+ segmentInfo.video.forEach(function (info) {
+ info.dts = handleRollover$1(info.dts, videoBaseTimestamp);
+ info.pts = handleRollover$1(info.pts, videoBaseTimestamp);
+ // time in seconds
+ info.dtsTime = info.dts / PES_TIMESCALE;
+ info.ptsTime = info.pts / PES_TIMESCALE;
+ });
+ if (segmentInfo.firstKeyFrame) {
+ var frame = segmentInfo.firstKeyFrame;
+ frame.dts = handleRollover$1(frame.dts, videoBaseTimestamp);
+ frame.pts = handleRollover$1(frame.pts, videoBaseTimestamp);
+ // time in seconds
+ frame.dtsTime = frame.dts / PES_TIMESCALE;
+ frame.ptsTime = frame.dts / PES_TIMESCALE;
+ }
+ }
+ };
+
+ /**
+ * inspects the aac data stream for start and end time information
+ */
+ var inspectAac_ = function inspectAac_(bytes) {
+ var endLoop = false,
+ audioCount = 0,
+ sampleRate = null,
+ timestamp = null,
+ frameSize = 0,
+ byteIndex = 0,
+ packet;
+
+ while (bytes.length - byteIndex >= 3) {
+ var type = probe$5.aac.parseType(bytes, byteIndex);
+ switch (type) {
+ case 'timed-metadata':
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (bytes.length - byteIndex < 10) {
+ endLoop = true;
+ break;
+ }
+
+ frameSize = probe$5.aac.parseId3TagSize(bytes, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > bytes.length) {
+ endLoop = true;
+ break;
+ }
+ if (timestamp === null) {
+ packet = bytes.subarray(byteIndex, byteIndex + frameSize);
+ timestamp = probe$5.aac.parseAacTimestamp(packet);
+ }
+ byteIndex += frameSize;
+ break;
+ case 'audio':
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (bytes.length - byteIndex < 7) {
+ endLoop = true;
+ break;
+ }
+
+ frameSize = probe$5.aac.parseAdtsSize(bytes, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > bytes.length) {
+ endLoop = true;
+ break;
+ }
+ if (sampleRate === null) {
+ packet = bytes.subarray(byteIndex, byteIndex + frameSize);
+ sampleRate = probe$5.aac.parseSampleRate(packet);
+ }
+ audioCount++;
+ byteIndex += frameSize;
+ break;
+ default:
+ byteIndex++;
+ break;
+ }
+ if (endLoop) {
+ return null;
+ }
+ }
+ if (sampleRate === null || timestamp === null) {
+ return null;
+ }
+
+ var audioTimescale = PES_TIMESCALE / sampleRate;
+
+ var result = {
+ audio: [{
+ type: 'audio',
+ dts: timestamp,
+ pts: timestamp
+ }, {
+ type: 'audio',
+ dts: timestamp + audioCount * 1024 * audioTimescale,
+ pts: timestamp + audioCount * 1024 * audioTimescale
+ }]
+ };
+
+ return result;
+ };
+
+ /**
+ * inspects the transport stream segment data for start and end time information
+ * of the audio and video tracks (when present) as well as the first key frame's
+ * start time.
+ */
+ var inspectTs_ = function inspectTs_(bytes) {
+ var pmt = {
+ pid: null,
+ table: null
+ };
+
+ var result = {};
+
+ parsePsi_(bytes, pmt);
+
+ for (var pid in pmt.table) {
+ if (pmt.table.hasOwnProperty(pid)) {
+ var type = pmt.table[pid];
+ switch (type) {
+ case StreamTypes.H264_STREAM_TYPE:
+ result.video = [];
+ parseVideoPes_(bytes, pmt, result);
+ if (result.video.length === 0) {
+ delete result.video;
+ }
+ break;
+ case StreamTypes.ADTS_STREAM_TYPE:
+ result.audio = [];
+ parseAudioPes_(bytes, pmt, result);
+ if (result.audio.length === 0) {
+ delete result.audio;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ return result;
+ };
+
+ /**
+ * Inspects segment byte data and returns an object with start and end timing information
+ *
+ * @param {Uint8Array} bytes The segment byte data
+ * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame
+ * timestamps for rollover. This value must be in 90khz clock.
+ * @return {Object} Object containing start and end frame timing info of segment.
+ */
+ var inspect$1 = function inspect(bytes, baseTimestamp) {
+ var isAacData = isLikelyAacData$1(bytes);
+
+ var result;
+
+ if (isAacData) {
+ result = inspectAac_(bytes);
+ } else {
+ result = inspectTs_(bytes);
+ }
+
+ if (!result || !result.audio && !result.video) {
+ return null;
+ }
+
+ adjustTimestamp_(result, baseTimestamp);
+
+ return result;
+ };
+
+ var tsInspector = {
+ inspect: inspect$1
+ };
+
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck$2 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits$2 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$2 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === "undefined" ? "undefined" : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0;
+
+ // Compute double and third tables
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x;
+
+ // Compute MixColumns
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ }
+
+ // Compactify. Considerable speedup on Firefox.
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+ return tables;
+ };
+ var aesTables = null;
+
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck$2(this, AES);
+
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+ if (!aesTables) {
+ aesTables = precompute();
+ }
+ // then make a copy of that object for use
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey];
+
+ // schedule encryption keys
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1];
+
+ // apply sbox
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
+
+ // shift rows and add rcon
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ }
+
+ // schedule decryption keys
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+ AES.prototype.decrypt = function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1];
+ // state variables a,b,c,d are loaded with pre-whitened data
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0;
+
+ // key.length === 2 ?
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1];
+
+ // load up the tables
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4];
+
+ // Inner rounds. Cribbed from OpenSSL.
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;b = b2;c = c2;
+ }
+
+ // Last round.
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;a = b;b = c;c = d;d = a2;
+ }
+ };
+
+ return AES;
+ }();
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream$3 = function () {
+ function Stream() {
+ classCallCheck$2(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ }
+
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file async-stream.js
+ */
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+ var AsyncStream = function (_Stream) {
+ inherits$2(AsyncStream, _Stream);
+
+ function AsyncStream() {
+ classCallCheck$2(this, AsyncStream);
+
+ var _this = possibleConstructorReturn$2(this, _Stream.call(this, Stream$3));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+ AsyncStream.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+ AsyncStream.prototype.push = function push(job) {
+ this.jobs.push(job);
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream;
+ }(Stream$3);
+
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+ var decrypt = function decrypt(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+
+ var decipher = new AES(Array.prototype.slice.call(key));
+
+ // byte and word-level access for the decrypted output
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer);
+
+ // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0;
+
+ // iteration variable
+ var wordIx = void 0;
+
+ // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3];
+
+ // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]);
+
+ // decrypt the block
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx);
+
+ // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3);
+
+ // setup the IV for the next round
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+ var Decrypter = function () {
+ function Decrypter(encrypted, key, initVector, done) {
+ classCallCheck$2(this, Decrypter);
+
+ var step = Decrypter.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+
+ this.asyncStream_ = new AsyncStream();
+
+ // split up the encryption job and do the individual chunks asynchronously
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ }
+ // invoke the done() callback when everything is finished
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+ Decrypter.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt(encrypted, key, initVector);
+
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass$1(Decrypter, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter;
+ }();
+
+ /**
+ * @videojs/http-streaming
+ * @version 1.2.6
+ * @copyright 2018 Brightcove, Inc
+ * @license Apache-2.0
+ */
+
+ /**
+ * @file resolve-url.js
+ */
+
+ var resolveUrl$1 = function resolveUrl(baseURL, relativeURL) {
+ // return early if we don't need to resolve
+ if (/^[a-z]+:/i.test(relativeURL)) {
+ return relativeURL;
+ }
+
+ // if the base URL is relative then combine with the current location
+ if (!/\/\//i.test(baseURL)) {
+ baseURL = urlToolkit.buildAbsoluteURL(window_1.location.href, baseURL);
+ }
+
+ return urlToolkit.buildAbsoluteURL(baseURL, relativeURL);
+ };
+
+ var classCallCheck$3 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$2 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var get$2 = function get$$1(object, property, receiver) {
+ if (object === null) object = Function.prototype;
+ var desc = Object.getOwnPropertyDescriptor(object, property);
+
+ if (desc === undefined) {
+ var parent = Object.getPrototypeOf(object);
+
+ if (parent === null) {
+ return undefined;
+ } else {
+ return get$$1(parent, property, receiver);
+ }
+ } else if ("value" in desc) {
+ return desc.value;
+ } else {
+ var getter = desc.get;
+
+ if (getter === undefined) {
+ return undefined;
+ }
+
+ return getter.call(receiver);
+ }
+ };
+
+ var inherits$3 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$3 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ var slicedToArray$1 = function () {
+ function sliceIterator(arr, i) {
+ var _arr = [];
+ var _n = true;
+ var _d = false;
+ var _e = undefined;
+
+ try {
+ for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+ _arr.push(_s.value);
+
+ if (i && _arr.length === i) break;
+ }
+ } catch (err) {
+ _d = true;
+ _e = err;
+ } finally {
+ try {
+ if (!_n && _i["return"]) _i["return"]();
+ } finally {
+ if (_d) throw _e;
+ }
+ }
+
+ return _arr;
+ }
+
+ return function (arr, i) {
+ if (Array.isArray(arr)) {
+ return arr;
+ } else if (Symbol.iterator in Object(arr)) {
+ return sliceIterator(arr, i);
+ } else {
+ throw new TypeError("Invalid attempt to destructure non-iterable instance");
+ }
+ };
+ }();
+
+ /**
+ * @file playlist-loader.js
+ *
+ * A state machine that manages the loading, caching, and updating of
+ * M3U8 playlists.
+ *
+ */
+
+ var mergeOptions$1 = videojs$1.mergeOptions,
+ EventTarget$1 = videojs$1.EventTarget,
+ log$2 = videojs$1.log;
+
+ /**
+ * Loops through all supported media groups in master and calls the provided
+ * callback for each group
+ *
+ * @param {Object} master
+ * The parsed master manifest object
+ * @param {Function} callback
+ * Callback to call for each media group
+ */
+
+ var forEachMediaGroup = function forEachMediaGroup(master, callback) {
+ ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {
+ for (var groupKey in master.mediaGroups[mediaType]) {
+ for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
+ var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+
+ callback(mediaProperties, mediaType, groupKey, labelKey);
+ }
+ }
+ });
+ };
+
+ /**
+ * Returns a new array of segments that is the result of merging
+ * properties from an older list of segments onto an updated
+ * list. No properties on the updated playlist will be overridden.
+ *
+ * @param {Array} original the outdated list of segments
+ * @param {Array} update the updated list of segments
+ * @param {Number=} offset the index of the first update
+ * segment in the original segment list. For non-live playlists,
+ * this should always be zero and does not need to be
+ * specified. For live playlists, it should be the difference
+ * between the media sequence numbers in the original and updated
+ * playlists.
+ * @return a list of merged segment objects
+ */
+ var updateSegments = function updateSegments(original, update, offset) {
+ var result = update.slice();
+
+ offset = offset || 0;
+ var length = Math.min(original.length, update.length + offset);
+
+ for (var i = offset; i < length; i++) {
+ result[i - offset] = mergeOptions$1(original[i], result[i - offset]);
+ }
+ return result;
+ };
+
+ var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {
+ if (!segment.resolvedUri) {
+ segment.resolvedUri = resolveUrl$1(baseUri, segment.uri);
+ }
+ if (segment.key && !segment.key.resolvedUri) {
+ segment.key.resolvedUri = resolveUrl$1(baseUri, segment.key.uri);
+ }
+ if (segment.map && !segment.map.resolvedUri) {
+ segment.map.resolvedUri = resolveUrl$1(baseUri, segment.map.uri);
+ }
+ };
+
+ /**
+ * Returns a new master playlist that is the result of merging an
+ * updated media playlist into the original version. If the
+ * updated media playlist does not match any of the playlist
+ * entries in the original master playlist, null is returned.
+ *
+ * @param {Object} master a parsed master M3U8 object
+ * @param {Object} media a parsed media M3U8 object
+ * @return {Object} a new object that represents the original
+ * master playlist with the updated media playlist merged in, or
+ * null if the merge produced no change.
+ */
+ var updateMaster = function updateMaster(master, media) {
+ var result = mergeOptions$1(master, {});
+ var playlist = result.playlists[media.uri];
+
+ if (!playlist) {
+ return null;
+ }
+
+ // consider the playlist unchanged if the number of segments is equal and the media
+ // sequence number is unchanged
+ if (playlist.segments && media.segments && playlist.segments.length === media.segments.length && playlist.mediaSequence === media.mediaSequence) {
+ return null;
+ }
+
+ var mergedPlaylist = mergeOptions$1(playlist, media);
+
+ // if the update could overlap existing segment information, merge the two segment lists
+ if (playlist.segments) {
+ mergedPlaylist.segments = updateSegments(playlist.segments, media.segments, media.mediaSequence - playlist.mediaSequence);
+ }
+
+ // resolve any segment URIs to prevent us from having to do it later
+ mergedPlaylist.segments.forEach(function (segment) {
+ resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
+ });
+
+ // TODO Right now in the playlists array there are two references to each playlist, one
+ // that is referenced by index, and one by URI. The index reference may no longer be
+ // necessary.
+ for (var i = 0; i < result.playlists.length; i++) {
+ if (result.playlists[i].uri === media.uri) {
+ result.playlists[i] = mergedPlaylist;
+ }
+ }
+ result.playlists[media.uri] = mergedPlaylist;
+
+ return result;
+ };
+
+ var setupMediaPlaylists = function setupMediaPlaylists(master) {
+ // setup by-URI lookups and resolve media playlist URIs
+ var i = master.playlists.length;
+
+ while (i--) {
+ var playlist = master.playlists[i];
+
+ master.playlists[playlist.uri] = playlist;
+ playlist.resolvedUri = resolveUrl$1(master.uri, playlist.uri);
+ playlist.id = i;
+
+ if (!playlist.attributes) {
+ // Although the spec states an #EXT-X-STREAM-INF tag MUST have a
+ // BANDWIDTH attribute, we can play the stream without it. This means a poorly
+ // formatted master playlist may not have an attribute list. An attributes
+ // property is added here to prevent undefined references when we encounter
+ // this scenario.
+ playlist.attributes = {};
+
+ log$2.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
+ }
+ }
+ };
+
+ var resolveMediaGroupUris = function resolveMediaGroupUris(master) {
+ forEachMediaGroup(master, function (properties) {
+ if (properties.uri) {
+ properties.resolvedUri = resolveUrl$1(master.uri, properties.uri);
+ }
+ });
+ };
+
+ /**
+ * Calculates the time to wait before refreshing a live playlist
+ *
+ * @param {Object} media
+ * The current media
+ * @param {Boolean} update
+ * True if there were any updates from the last refresh, false otherwise
+ * @return {Number}
+ * The time in ms to wait before refreshing the live playlist
+ */
+ var refreshDelay = function refreshDelay(media, update) {
+ var lastSegment = media.segments[media.segments.length - 1];
+ var delay = void 0;
+
+ if (update && lastSegment && lastSegment.duration) {
+ delay = lastSegment.duration * 1000;
+ } else {
+ // if the playlist is unchanged since the last reload or last segment duration
+ // cannot be determined, try again after half the target duration
+ delay = (media.targetDuration || 10) * 500;
+ }
+ return delay;
+ };
+
+ /**
+ * Load a playlist from a remote location
+ *
+ * @class PlaylistLoader
+ * @extends Stream
+ * @param {String} srcUrl the url to start with
+ * @param {Boolean} withCredentials the withCredentials xhr option
+ * @constructor
+ */
+
+ var PlaylistLoader = function (_EventTarget) {
+ inherits$3(PlaylistLoader, _EventTarget);
+
+ function PlaylistLoader(srcUrl, hls, withCredentials) {
+ classCallCheck$3(this, PlaylistLoader);
+
+ var _this = possibleConstructorReturn$3(this, (PlaylistLoader.__proto__ || Object.getPrototypeOf(PlaylistLoader)).call(this));
+
+ _this.srcUrl = srcUrl;
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!_this.srcUrl) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ // initialize the loader state
+ _this.state = 'HAVE_NOTHING';
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ if (_this.state !== 'HAVE_METADATA') {
+ // only refresh the media playlist if no other activity is going on
+ return;
+ }
+
+ _this.state = 'HAVE_CURRENT_METADATA';
+
+ _this.request = _this.hls_.xhr({
+ uri: resolveUrl$1(_this.master.uri, _this.media().uri),
+ withCredentials: _this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this.request) {
+ return;
+ }
+
+ if (error) {
+ return _this.playlistRequestError(_this.request, _this.media().uri, 'HAVE_METADATA');
+ }
+
+ _this.haveMetadata(_this.request, _this.media().uri);
+ });
+ });
+ return _this;
+ }
+
+ createClass$2(PlaylistLoader, [{
+ key: 'playlistRequestError',
+ value: function playlistRequestError(xhr, url, startingState) {
+ // any in-flight request is now finished
+ this.request = null;
+
+ if (startingState) {
+ this.state = startingState;
+ }
+
+ this.error = {
+ playlist: this.master.playlists[url],
+ status: xhr.status,
+ message: 'HLS playlist request error at URL: ' + url,
+ responseText: xhr.responseText,
+ code: xhr.status >= 500 ? 4 : 2
+ };
+
+ this.trigger('error');
+ }
+
+ // update the playlist loader's state in response to a new or
+ // updated playlist.
+
+ }, {
+ key: 'haveMetadata',
+ value: function haveMetadata(xhr, url) {
+ var _this2 = this;
+
+ // any in-flight request is now finished
+ this.request = null;
+ this.state = 'HAVE_METADATA';
+
+ var parser = new Parser();
+
+ parser.push(xhr.responseText);
+ parser.end();
+ parser.manifest.uri = url;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ parser.manifest.attributes = parser.manifest.attributes || {};
+
+ // merge this playlist into the master
+ var update = updateMaster(this.master, parser.manifest);
+
+ this.targetDuration = parser.manifest.targetDuration;
+
+ if (update) {
+ this.master = update;
+ this.media_ = this.master.playlists[parser.manifest.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ // refresh live playlists after a target duration passes
+ if (!this.media().endList) {
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ this.mediaUpdateTimeout = window_1.setTimeout(function () {
+ _this2.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!update));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Abort any outstanding work and clean up.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+
+ /**
+ * When called without any arguments, returns the currently
+ * active media playlist. When called with a single argument,
+ * triggers the playlist loader to asynchronously switch to the
+ * specified media playlist. Calling this method while the
+ * loader is in the HAVE_NOTHING causes an error to be emitted
+ * but otherwise has no effect.
+ *
+ * @param {Object=} playlist the parsed media playlist
+ * object to switch to
+ * @return {Playlist} the current loaded media
+ */
+
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ var _this3 = this;
+
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been
+ // specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ // switch to fully loaded playlists immediately
+ if (this.master.playlists[playlist.uri].endList) {
+ // abort outstanding playlist requests
+ if (this.request) {
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+ this.state = 'HAVE_METADATA';
+ this.media_ = playlist;
+
+ // trigger media change if the active media has been updated
+ if (mediaChange) {
+ this.trigger('mediachanging');
+ this.trigger('mediachange');
+ }
+ return;
+ }
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ this.state = 'SWITCHING_MEDIA';
+
+ // there is already an outstanding playlist request
+ if (this.request) {
+ if (resolveUrl$1(this.master.uri, playlist.uri) === this.request.url) {
+ // requesting to switch to the same playlist multiple times
+ // has no effect after the first
+ return;
+ }
+ this.request.onreadystatechange = null;
+ this.request.abort();
+ this.request = null;
+ }
+
+ // request the new playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl$1(this.master.uri, playlist.uri),
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ return _this3.playlistRequestError(_this3.request, playlist.uri, startingState);
+ }
+
+ _this3.haveMetadata(req, playlist.uri);
+
+ // fire loadedmetadata the first time a media playlist is loaded
+ if (startingState === 'HAVE_MASTER') {
+ _this3.trigger('loadedmetadata');
+ } else {
+ _this3.trigger('mediachange');
+ }
+ });
+ }
+
+ /**
+ * pause loading of the playlist
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ // Need to restore state now that no activity is happening
+ if (this.state === 'SWITCHING_MEDIA') {
+ // if the loader was in the process of switching media, it should either return to
+ // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media
+ // playlist yet. This is determined by the existence of loader.media_
+ if (this.media_) {
+ this.state = 'HAVE_METADATA';
+ } else {
+ this.state = 'HAVE_MASTER';
+ }
+ } else if (this.state === 'HAVE_CURRENT_METADATA') {
+ this.state = 'HAVE_METADATA';
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'load',
+ value: function load(isFinalRendition) {
+ var _this4 = this;
+
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+
+ var media = this.media();
+
+ if (isFinalRendition) {
+ var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+
+ this.mediaUpdateTimeout = window_1.setTimeout(function () {
+ return _this4.load();
+ }, delay);
+ return;
+ }
+
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ if (media && !media.endList) {
+ this.trigger('mediaupdatetimeout');
+ } else {
+ this.trigger('loadedplaylist');
+ }
+ }
+
+ /**
+ * start loading of the playlist
+ */
+
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this5 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'HLS playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ var parser = new Parser();
+
+ parser.push(req.responseText);
+ parser.end();
+
+ _this5.state = 'HAVE_MASTER';
+
+ parser.manifest.uri = _this5.srcUrl;
+
+ // loaded a master playlist
+ if (parser.manifest.playlists) {
+ _this5.master = parser.manifest;
+
+ setupMediaPlaylists(_this5.master);
+ resolveMediaGroupUris(_this5.master);
+
+ _this5.trigger('loadedplaylist');
+ if (!_this5.request) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ _this5.media(parser.manifest.playlists[0]);
+ }
+ return;
+ }
+
+ // loaded a media playlist
+ // infer a master playlist if none was previously requested
+ _this5.master = {
+ mediaGroups: {
+ 'AUDIO': {},
+ 'VIDEO': {},
+ 'CLOSED-CAPTIONS': {},
+ 'SUBTITLES': {}
+ },
+ uri: window_1.location.href,
+ playlists: [{
+ uri: _this5.srcUrl,
+ id: 0
+ }]
+ };
+ _this5.master.playlists[_this5.srcUrl] = _this5.master.playlists[0];
+ _this5.master.playlists[0].resolvedUri = _this5.srcUrl;
+ // m3u8-parser does not attach an attributes property to media playlists so make
+ // sure that the property is attached to avoid undefined reference errors
+ _this5.master.playlists[0].attributes = _this5.master.playlists[0].attributes || {};
+ _this5.haveMetadata(req, _this5.srcUrl);
+ return _this5.trigger('loadedmetadata');
+ });
+ }
+ }]);
+ return PlaylistLoader;
+ }(EventTarget$1);
+
+ /**
+ * @file playlist.js
+ *
+ * Playlist related utilities.
+ */
+
+ var createTimeRange = videojs$1.createTimeRange;
+
+ /**
+ * walk backward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+
+ var backwardDuration = function backwardDuration(playlist, endSequence) {
+ var result = 0;
+ var i = endSequence - playlist.mediaSequence;
+ // if a start time is available for segment immediately following
+ // the interval, use it
+ var segment = playlist.segments[i];
+
+ // Walk backward until we find the latest segment with timeline
+ // information that is earlier than endSequence
+ if (segment) {
+ if (typeof segment.start !== 'undefined') {
+ return { result: segment.start, precise: true };
+ }
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - segment.duration,
+ precise: true
+ };
+ }
+ }
+ while (i--) {
+ segment = playlist.segments[i];
+ if (typeof segment.end !== 'undefined') {
+ return { result: result + segment.end, precise: true };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.start !== 'undefined') {
+ return { result: result + segment.start, precise: true };
+ }
+ }
+ return { result: result, precise: false };
+ };
+
+ /**
+ * walk forward until we find a duration we can use
+ * or return a failure
+ *
+ * @param {Playlist} playlist the playlist to walk through
+ * @param {Number} endSequence the mediaSequence to stop walking on
+ */
+ var forwardDuration = function forwardDuration(playlist, endSequence) {
+ var result = 0;
+ var segment = void 0;
+ var i = endSequence - playlist.mediaSequence;
+ // Walk forward until we find the earliest segment with timeline
+ // information
+
+ for (; i < playlist.segments.length; i++) {
+ segment = playlist.segments[i];
+ if (typeof segment.start !== 'undefined') {
+ return {
+ result: segment.start - result,
+ precise: true
+ };
+ }
+
+ result += segment.duration;
+
+ if (typeof segment.end !== 'undefined') {
+ return {
+ result: segment.end - result,
+ precise: true
+ };
+ }
+ }
+ // indicate we didn't find a useful duration estimate
+ return { result: -1, precise: false };
+ };
+
+ /**
+ * Calculate the media duration from the segments associated with a
+ * playlist. The duration of a subinterval of the available segments
+ * may be calculated by specifying an end index.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper boundary
+ * for the playlist. Defaults to playlist length.
+ * @param {Number} expired the amount of time that has dropped
+ * off the front of the playlist in a live scenario
+ * @return {Number} the duration between the first available segment
+ * and end index.
+ */
+ var intervalDuration = function intervalDuration(playlist, endSequence, expired) {
+ var backward = void 0;
+ var forward = void 0;
+
+ if (typeof endSequence === 'undefined') {
+ endSequence = playlist.mediaSequence + playlist.segments.length;
+ }
+
+ if (endSequence < playlist.mediaSequence) {
+ return 0;
+ }
+
+ // do a backward walk to estimate the duration
+ backward = backwardDuration(playlist, endSequence);
+ if (backward.precise) {
+ // if we were able to base our duration estimate on timing
+ // information provided directly from the Media Source, return
+ // it
+ return backward.result;
+ }
+
+ // walk forward to see if a precise duration estimate can be made
+ // that way
+ forward = forwardDuration(playlist, endSequence);
+ if (forward.precise) {
+ // we found a segment that has been buffered and so it's
+ // position is known precisely
+ return forward.result;
+ }
+
+ // return the less-precise, playlist-based duration estimate
+ return backward.result + expired;
+ };
+
+ /**
+ * Calculates the duration of a playlist. If a start and end index
+ * are specified, the duration will be for the subset of the media
+ * timeline between those two indices. The total duration for live
+ * playlists is always Infinity.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} endSequence an exclusive upper
+ * boundary for the playlist. Defaults to the playlist media
+ * sequence number plus its length.
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {Number} the duration between the start index and end
+ * index.
+ */
+ var duration = function duration(playlist, endSequence, expired) {
+ if (!playlist) {
+ return 0;
+ }
+
+ if (typeof expired !== 'number') {
+ expired = 0;
+ }
+
+ // if a slice of the total duration is not requested, use
+ // playlist-level duration indicators when they're present
+ if (typeof endSequence === 'undefined') {
+ // if present, use the duration specified in the playlist
+ if (playlist.totalDuration) {
+ return playlist.totalDuration;
+ }
+
+ // duration should be Infinity for live playlists
+ if (!playlist.endList) {
+ return window_1.Infinity;
+ }
+ }
+
+ // calculate the total duration based on the segment durations
+ return intervalDuration(playlist, endSequence, expired);
+ };
+
+ /**
+ * Calculate the time between two indexes in the current playlist
+ * neight the start- nor the end-index need to be within the current
+ * playlist in which case, the targetDuration of the playlist is used
+ * to approximate the durations of the segments
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number} startIndex
+ * @param {Number} endIndex
+ * @return {Number} the number of seconds between startIndex and endIndex
+ */
+ var sumDurations = function sumDurations(playlist, startIndex, endIndex) {
+ var durations = 0;
+
+ if (startIndex > endIndex) {
+ var _ref = [endIndex, startIndex];
+ startIndex = _ref[0];
+ endIndex = _ref[1];
+ }
+
+ if (startIndex < 0) {
+ for (var i = startIndex; i < Math.min(0, endIndex); i++) {
+ durations += playlist.targetDuration;
+ }
+ startIndex = 0;
+ }
+
+ for (var _i = startIndex; _i < endIndex; _i++) {
+ durations += playlist.segments[_i].duration;
+ }
+
+ return durations;
+ };
+
+ /**
+ * Determines the media index of the segment corresponding to the safe edge of the live
+ * window which is the duration of the last segment plus 2 target durations from the end
+ * of the playlist.
+ *
+ * @param {Object} playlist
+ * a media playlist object
+ * @return {Number}
+ * The media index of the segment at the safe live point. 0 if there is no "safe"
+ * point.
+ * @function safeLiveIndex
+ */
+ var safeLiveIndex = function safeLiveIndex(playlist) {
+ if (!playlist.segments.length) {
+ return 0;
+ }
+
+ var i = playlist.segments.length - 1;
+ var distanceFromEnd = playlist.segments[i].duration || playlist.targetDuration;
+ var safeDistance = distanceFromEnd + playlist.targetDuration * 2;
+
+ while (i--) {
+ distanceFromEnd += playlist.segments[i].duration;
+
+ if (distanceFromEnd >= safeDistance) {
+ break;
+ }
+ }
+
+ return Math.max(0, i);
+ };
+
+ /**
+ * Calculates the playlist end time
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @param {Boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
+ * playlist end calculation should consider the safe live end
+ * (truncate the playlist end by three segments). This is normally
+ * used for calculating the end of the playlist's seekable range.
+ * @returns {Number} the end time of playlist
+ * @function playlistEnd
+ */
+ var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+ if (playlist.endList) {
+ return duration(playlist);
+ }
+
+ if (expired === null) {
+ return null;
+ }
+
+ expired = expired || 0;
+
+ var endSequence = useSafeLiveEnd ? safeLiveIndex(playlist) : playlist.segments.length;
+
+ return intervalDuration(playlist, playlist.mediaSequence + endSequence, expired);
+ };
+
+ /**
+ * Calculates the interval of time that is currently seekable in a
+ * playlist. The returned time ranges are relative to the earliest
+ * moment in the specified playlist that is still available. A full
+ * seekable implementation for live streams would need to offset
+ * these values by the duration of content that has expired from the
+ * stream.
+ *
+ * @param {Object} playlist a media playlist object
+ * dropped off the front of the playlist in a live scenario
+ * @param {Number=} expired the amount of time that has
+ * dropped off the front of the playlist in a live scenario
+ * @return {TimeRanges} the periods of time that are valid targets
+ * for seeking
+ */
+ var seekable = function seekable(playlist, expired) {
+ var useSafeLiveEnd = true;
+ var seekableStart = expired || 0;
+ var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd);
+
+ if (seekableEnd === null) {
+ return createTimeRange();
+ }
+ return createTimeRange(seekableStart, seekableEnd);
+ };
+
+ var isWholeNumber = function isWholeNumber(num) {
+ return num - Math.floor(num) === 0;
+ };
+
+ var roundSignificantDigit = function roundSignificantDigit(increment, num) {
+ // If we have a whole number, just add 1 to it
+ if (isWholeNumber(num)) {
+ return num + increment * 0.1;
+ }
+
+ var numDecimalDigits = num.toString().split('.')[1].length;
+
+ for (var i = 1; i <= numDecimalDigits; i++) {
+ var scale = Math.pow(10, i);
+ var temp = num * scale;
+
+ if (isWholeNumber(temp) || i === numDecimalDigits) {
+ return (temp + increment) / scale;
+ }
+ }
+ };
+
+ var ceilLeastSignificantDigit = roundSignificantDigit.bind(null, 1);
+ var floorLeastSignificantDigit = roundSignificantDigit.bind(null, -1);
+
+ /**
+ * Determine the index and estimated starting time of the segment that
+ * contains a specified playback position in a media playlist.
+ *
+ * @param {Object} playlist the media playlist to query
+ * @param {Number} currentTime The number of seconds since the earliest
+ * possible position to determine the containing segment for
+ * @param {Number} startIndex
+ * @param {Number} startTime
+ * @return {Object}
+ */
+ var getMediaInfoForTime = function getMediaInfoForTime(playlist, currentTime, startIndex, startTime) {
+ var i = void 0;
+ var segment = void 0;
+ var numSegments = playlist.segments.length;
+
+ var time = currentTime - startTime;
+
+ if (time < 0) {
+ // Walk backward from startIndex in the playlist, adding durations
+ // until we find a segment that contains `time` and return it
+ if (startIndex > 0) {
+ for (i = startIndex - 1; i >= 0; i--) {
+ segment = playlist.segments[i];
+ time += floorLeastSignificantDigit(segment.duration);
+ if (time > 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime - sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+ }
+ // We were unable to find a good segment within the playlist
+ // so select the first segment
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+
+ // When startIndex is negative, we first walk forward to first segment
+ // adding target durations. If we "run out of time" before getting to
+ // the first segment, return the first segment
+ if (startIndex < 0) {
+ for (i = startIndex; i < 0; i++) {
+ time -= playlist.targetDuration;
+ if (time < 0) {
+ return {
+ mediaIndex: 0,
+ startTime: currentTime
+ };
+ }
+ }
+ startIndex = 0;
+ }
+
+ // Walk forward from startIndex in the playlist, subtracting durations
+ // until we find a segment that contains `time` and return it
+ for (i = startIndex; i < numSegments; i++) {
+ segment = playlist.segments[i];
+ time -= ceilLeastSignificantDigit(segment.duration);
+ if (time < 0) {
+ return {
+ mediaIndex: i,
+ startTime: startTime + sumDurations(playlist, startIndex, i)
+ };
+ }
+ }
+
+ // We are out of possible candidates so load the last one...
+ return {
+ mediaIndex: numSegments - 1,
+ startTime: currentTime
+ };
+ };
+
+ /**
+ * Check whether the playlist is blacklisted or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is blacklisted or not
+ * @function isBlacklisted
+ */
+ var isBlacklisted = function isBlacklisted(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil > Date.now();
+ };
+
+ /**
+ * Check whether the playlist is compatible with current playback configuration or has
+ * been blacklisted permanently for being incompatible.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is incompatible or not
+ * @function isIncompatible
+ */
+ var isIncompatible = function isIncompatible(playlist) {
+ return playlist.excludeUntil && playlist.excludeUntil === Infinity;
+ };
+
+ /**
+ * Check whether the playlist is enabled or not.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is enabled or not
+ * @function isEnabled
+ */
+ var isEnabled = function isEnabled(playlist) {
+ var blacklisted = isBlacklisted(playlist);
+
+ return !playlist.disabled && !blacklisted;
+ };
+
+ /**
+ * Check whether the playlist has been manually disabled through the representations api.
+ *
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist is disabled manually or not
+ * @function isDisabled
+ */
+ var isDisabled = function isDisabled(playlist) {
+ return playlist.disabled;
+ };
+
+ /**
+ * Returns whether the current playlist is an AES encrypted HLS stream
+ *
+ * @return {Boolean} true if it's an AES encrypted HLS stream
+ */
+ var isAes = function isAes(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].key) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Returns whether the current playlist contains fMP4
+ *
+ * @return {Boolean} true if the playlist contains fMP4
+ */
+ var isFmp4 = function isFmp4(media) {
+ for (var i = 0; i < media.segments.length; i++) {
+ if (media.segments[i].map) {
+ return true;
+ }
+ }
+ return false;
+ };
+
+ /**
+ * Checks if the playlist has a value for the specified attribute
+ *
+ * @param {String} attr
+ * Attribute to check for
+ * @param {Object} playlist
+ * The media playlist object
+ * @return {Boolean}
+ * Whether the playlist contains a value for the attribute or not
+ * @function hasAttribute
+ */
+ var hasAttribute = function hasAttribute(attr, playlist) {
+ return playlist.attributes && playlist.attributes[attr];
+ };
+
+ /**
+ * Estimates the time required to complete a segment download from the specified playlist
+ *
+ * @param {Number} segmentDuration
+ * Duration of requested segment
+ * @param {Number} bandwidth
+ * Current measured bandwidth of the player
+ * @param {Object} playlist
+ * The media playlist object
+ * @param {Number=} bytesReceived
+ * Number of bytes already received for the request. Defaults to 0
+ * @return {Number|NaN}
+ * The estimated time to request the segment. NaN if bandwidth information for
+ * the given playlist is unavailable
+ * @function estimateSegmentRequestTime
+ */
+ var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist) {
+ var bytesReceived = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
+
+ if (!hasAttribute('BANDWIDTH', playlist)) {
+ return NaN;
+ }
+
+ var size = segmentDuration * playlist.attributes.BANDWIDTH;
+
+ return (size - bytesReceived * 8) / bandwidth;
+ };
+
+ /*
+ * Returns whether the current playlist is the lowest rendition
+ *
+ * @return {Boolean} true if on lowest rendition
+ */
+ var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {
+ if (master.playlists.length === 1) {
+ return true;
+ }
+
+ var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
+
+ return master.playlists.filter(function (playlist) {
+ if (!isEnabled(playlist)) {
+ return false;
+ }
+
+ return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
+ }).length === 0;
+ };
+
+ // exports
+ var Playlist = {
+ duration: duration,
+ seekable: seekable,
+ safeLiveIndex: safeLiveIndex,
+ getMediaInfoForTime: getMediaInfoForTime,
+ isEnabled: isEnabled,
+ isDisabled: isDisabled,
+ isBlacklisted: isBlacklisted,
+ isIncompatible: isIncompatible,
+ playlistEnd: playlistEnd,
+ isAes: isAes,
+ isFmp4: isFmp4,
+ hasAttribute: hasAttribute,
+ estimateSegmentRequestTime: estimateSegmentRequestTime,
+ isLowestEnabledRendition: isLowestEnabledRendition
+ };
+
+ /**
+ * @file xhr.js
+ */
+
+ var videojsXHR = videojs$1.xhr,
+ mergeOptions$1$1 = videojs$1.mergeOptions;
+
+ var xhrFactory = function xhrFactory() {
+ var xhr = function XhrFunction(options, callback) {
+ // Add a default timeout for all hls requests
+ options = mergeOptions$1$1({
+ timeout: 45e3
+ }, options);
+
+ // Allow an optional user-specified function to modify the option
+ // object before we construct the xhr request
+ var beforeRequest = XhrFunction.beforeRequest || videojs$1.Hls.xhr.beforeRequest;
+
+ if (beforeRequest && typeof beforeRequest === 'function') {
+ var newOptions = beforeRequest(options);
+
+ if (newOptions) {
+ options = newOptions;
+ }
+ }
+
+ var request = videojsXHR(options, function (error, response) {
+ var reqResponse = request.response;
+
+ if (!error && reqResponse) {
+ request.responseTime = Date.now();
+ request.roundTripTime = request.responseTime - request.requestTime;
+ request.bytesReceived = reqResponse.byteLength || reqResponse.length;
+ if (!request.bandwidth) {
+ request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
+ }
+ }
+
+ if (response.headers) {
+ request.responseHeaders = response.headers;
+ }
+
+ // videojs.xhr now uses a specific code on the error
+ // object to signal that a request has timed out instead
+ // of setting a boolean on the request object
+ if (error && error.code === 'ETIMEDOUT') {
+ request.timedout = true;
+ }
+
+ // videojs.xhr no longer considers status codes outside of 200 and 0
+ // (for file uris) to be errors, but the old XHR did, so emulate that
+ // behavior. Status 206 may be used in response to byterange requests.
+ if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
+ error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
+ }
+
+ callback(error, request);
+ });
+ var originalAbort = request.abort;
+
+ request.abort = function () {
+ request.aborted = true;
+ return originalAbort.apply(request, arguments);
+ };
+ request.uri = options.uri;
+ request.requestTime = Date.now();
+ return request;
+ };
+
+ return xhr;
+ };
+
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * convert a TimeRange to text
+ *
+ * @param {TimeRange} range the timerange to use for conversion
+ * @param {Number} i the iterator on the range to convert
+ */
+ var textRange = function textRange(range, i) {
+ return range.start(i) + '-' + range.end(i);
+ };
+
+ /**
+ * format a number as hex string
+ *
+ * @param {Number} e The number
+ * @param {Number} i the iterator
+ */
+ var formatHexString = function formatHexString(e, i) {
+ var value = e.toString(16);
+
+ return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
+ };
+ var formatAsciiString = function formatAsciiString(e) {
+ if (e >= 0x20 && e < 0x7e) {
+ return String.fromCharCode(e);
+ }
+ return '.';
+ };
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+ };
+
+ /**
+ * Returns a unique string identifier for a media initialization
+ * segment.
+ */
+ var initSegmentId = function initSegmentId(initSegment) {
+ var byterange = initSegment.byterange || {
+ length: Infinity,
+ offset: 0
+ };
+
+ return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
+ };
+
+ /**
+ * utils to help dump binary data to the console
+ */
+ var hexDump = function hexDump(data) {
+ var bytes = Array.prototype.slice.call(data);
+ var step = 16;
+ var result = '';
+ var hex = void 0;
+ var ascii = void 0;
+
+ for (var j = 0; j < bytes.length / step; j++) {
+ hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
+ ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
+ result += hex + ' ' + ascii + '\n';
+ }
+
+ return result;
+ };
+
+ var tagDump = function tagDump(_ref) {
+ var bytes = _ref.bytes;
+ return hexDump(bytes);
+ };
+
+ var textRanges = function textRanges(ranges) {
+ var result = '';
+ var i = void 0;
+
+ for (i = 0; i < ranges.length; i++) {
+ result += textRange(ranges, i) + ' ';
+ }
+ return result;
+ };
+
+ var utils = /*#__PURE__*/Object.freeze({
+ createTransferableMessage: createTransferableMessage,
+ initSegmentId: initSegmentId,
+ hexDump: hexDump,
+ tagDump: tagDump,
+ textRanges: textRanges
+ });
+
+ /**
+ * ranges
+ *
+ * Utilities for working with TimeRanges.
+ *
+ */
+
+ // Fudge factor to account for TimeRanges rounding
+ var TIME_FUDGE_FACTOR = 1 / 30;
+ // Comparisons between time values such as current time and the end of the buffered range
+ // can be misleading because of precision differences or when the current media has poorly
+ // aligned audio and video, which can cause values to be slightly off from what you would
+ // expect. This value is what we consider to be safe to use in such comparisons to account
+ // for these scenarios.
+ var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
+ var filterRanges = function filterRanges(timeRanges, predicate) {
+ var results = [];
+ var i = void 0;
+
+ if (timeRanges && timeRanges.length) {
+ // Search for ranges that match the predicate
+ for (i = 0; i < timeRanges.length; i++) {
+ if (predicate(timeRanges.start(i), timeRanges.end(i))) {
+ results.push([timeRanges.start(i), timeRanges.end(i)]);
+ }
+ }
+ }
+
+ return videojs$1.createTimeRanges(results);
+ };
+
+ /**
+ * Attempts to find the buffered TimeRange that contains the specified
+ * time.
+ * @param {TimeRanges} buffered - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object
+ */
+ var findRange = function findRange(buffered, time) {
+ return filterRanges(buffered, function (start, end) {
+ return start - TIME_FUDGE_FACTOR <= time && end + TIME_FUDGE_FACTOR >= time;
+ });
+ };
+
+ /**
+ * Returns the TimeRanges that begin later than the specified time.
+ * @param {TimeRanges} timeRanges - the TimeRanges object to query
+ * @param {number} time - the time to filter on.
+ * @returns {TimeRanges} a new TimeRanges object.
+ */
+ var findNextRange = function findNextRange(timeRanges, time) {
+ return filterRanges(timeRanges, function (start) {
+ return start - TIME_FUDGE_FACTOR >= time;
+ });
+ };
+
+ /**
+ * Returns gaps within a list of TimeRanges
+ * @param {TimeRanges} buffered - the TimeRanges object
+ * @return {TimeRanges} a TimeRanges object of gaps
+ */
+ var findGaps = function findGaps(buffered) {
+ if (buffered.length < 2) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var ranges = [];
+
+ for (var i = 1; i < buffered.length; i++) {
+ var start = buffered.end(i - 1);
+ var end = buffered.start(i);
+
+ ranges.push([start, end]);
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+ };
+
+ /**
+ * Gets a human readable string for a TimeRange
+ *
+ * @param {TimeRange} range
+ * @returns {String} a human readable string
+ */
+ var printableRange = function printableRange(range) {
+ var strArr = [];
+
+ if (!range || !range.length) {
+ return '';
+ }
+
+ for (var i = 0; i < range.length; i++) {
+ strArr.push(range.start(i) + ' => ' + range.end(i));
+ }
+
+ return strArr.join(', ');
+ };
+
+ /**
+ * Calculates the amount of time left in seconds until the player hits the end of the
+ * buffer and causes a rebuffer
+ *
+ * @param {TimeRange} buffered
+ * The state of the buffer
+ * @param {Numnber} currentTime
+ * The current time of the player
+ * @param {Number} playbackRate
+ * The current playback rate of the player. Defaults to 1.
+ * @return {Number}
+ * Time until the player has to start rebuffering in seconds.
+ * @function timeUntilRebuffer
+ */
+ var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime) {
+ var playbackRate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
+
+ var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
+
+ return (bufferedEnd - currentTime) / playbackRate;
+ };
+
+ /**
+ * Converts a TimeRanges object into an array representation
+ * @param {TimeRanges} timeRanges
+ * @returns {Array}
+ */
+ var timeRangesToArray = function timeRangesToArray(timeRanges) {
+ var timeRangesList = [];
+
+ for (var i = 0; i < timeRanges.length; i++) {
+ timeRangesList.push({
+ start: timeRanges.start(i),
+ end: timeRanges.end(i)
+ });
+ }
+
+ return timeRangesList;
+ };
+
+ /**
+ * @file create-text-tracks-if-necessary.js
+ */
+
+ /**
+ * Create text tracks on video.js if they exist on a segment.
+ *
+ * @param {Object} sourceBuffer the VSB or FSB
+ * @param {Object} mediaSource the HTML media source
+ * @param {Object} segment the segment that may contain the text track
+ * @private
+ */
+ var createTextTracksIfNecessary = function createTextTracksIfNecessary(sourceBuffer, mediaSource, segment) {
+ var player = mediaSource.player_;
+
+ // create an in-band caption track if one is present in the segment
+ if (segment.captions && segment.captions.length) {
+ if (!sourceBuffer.inbandTextTracks_) {
+ sourceBuffer.inbandTextTracks_ = {};
+ }
+
+ for (var trackId in segment.captionStreams) {
+ if (!sourceBuffer.inbandTextTracks_[trackId]) {
+ player.tech_.trigger({ type: 'usage', name: 'hls-608' });
+ var track = player.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ sourceBuffer.inbandTextTracks_[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ sourceBuffer.inbandTextTracks_[trackId] = player.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ }
+
+ if (segment.metadata && segment.metadata.length && !sourceBuffer.metadataTrack_) {
+ sourceBuffer.metadataTrack_ = player.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'Timed Metadata'
+ }, false).track;
+ sourceBuffer.metadataTrack_.inBandMetadataTrackDispatchType = segment.metadata.dispatchType;
+ }
+ };
+
+ /**
+ * @file remove-cues-from-track.js
+ */
+
+ /**
+ * Remove cues from a track on video.js.
+ *
+ * @param {Double} start start of where we should remove the cue
+ * @param {Double} end end of where the we should remove the cue
+ * @param {Object} track the text track to remove the cues from
+ * @private
+ */
+ var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {
+ var i = void 0;
+ var cue = void 0;
+
+ if (!track) {
+ return;
+ }
+
+ if (!track.cues) {
+ return;
+ }
+
+ i = track.cues.length;
+
+ while (i--) {
+ cue = track.cues[i];
+
+ // Remove any overlapping cue
+ if (cue.startTime <= end && cue.endTime >= start) {
+ track.removeCue(cue);
+ }
+ }
+ };
+
+ /**
+ * @file add-text-track-data.js
+ */
+ /**
+ * Define properties on a cue for backwards compatability,
+ * but warn the user that the way that they are using it
+ * is depricated and will be removed at a later date.
+ *
+ * @param {Cue} cue the cue to add the properties on
+ * @private
+ */
+ var deprecateOldCue = function deprecateOldCue(cue) {
+ Object.defineProperties(cue.frame, {
+ id: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
+ return cue.value.key;
+ }
+ },
+ value: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ },
+ privateData: {
+ get: function get$$1() {
+ videojs$1.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
+ return cue.value.data;
+ }
+ }
+ });
+ };
+
+ var durationOfVideo = function durationOfVideo(duration) {
+ var dur = void 0;
+
+ if (isNaN(duration) || Math.abs(duration) === Infinity) {
+ dur = Number.MAX_VALUE;
+ } else {
+ dur = duration;
+ }
+ return dur;
+ };
+ /**
+ * Add text track data to a source handler given the captions and
+ * metadata from the buffer.
+ *
+ * @param {Object} sourceHandler the virtual source buffer
+ * @param {Array} captionArray an array of caption data
+ * @param {Array} metadataArray an array of meta data
+ * @private
+ */
+ var addTextTrackData = function addTextTrackData(sourceHandler, captionArray, metadataArray) {
+ var Cue = window_1.WebKitDataCue || window_1.VTTCue;
+
+ if (captionArray) {
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+
+ this.inbandTextTracks_[track].addCue(new Cue(caption.startTime + this.timestampOffset, caption.endTime + this.timestampOffset, caption.text));
+ }, sourceHandler);
+ }
+
+ if (metadataArray) {
+ var videoDuration = durationOfVideo(sourceHandler.mediaSource_.duration);
+
+ metadataArray.forEach(function (metadata) {
+ var time = metadata.cueTime + this.timestampOffset;
+
+ metadata.frames.forEach(function (frame) {
+ var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
+
+ cue.frame = frame;
+ cue.value = frame;
+ deprecateOldCue(cue);
+
+ this.metadataTrack_.addCue(cue);
+ }, this);
+ }, sourceHandler);
+
+ // Updating the metadeta cues so that
+ // the endTime of each cue is the startTime of the next cue
+ // the endTime of last cue is the duration of the video
+ if (sourceHandler.metadataTrack_ && sourceHandler.metadataTrack_.cues && sourceHandler.metadataTrack_.cues.length) {
+ var cues = sourceHandler.metadataTrack_.cues;
+ var cuesArray = [];
+
+ // Create a copy of the TextTrackCueList...
+ // ...disregarding cues with a falsey value
+ for (var i = 0; i < cues.length; i++) {
+ if (cues[i]) {
+ cuesArray.push(cues[i]);
+ }
+ }
+
+ // Group cues by their startTime value
+ var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {
+ var timeSlot = obj[cue.startTime] || [];
+
+ timeSlot.push(cue);
+ obj[cue.startTime] = timeSlot;
+
+ return obj;
+ }, {});
+
+ // Sort startTimes by ascending order
+ var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {
+ return Number(a) - Number(b);
+ });
+
+ // Map each cue group's endTime to the next group's startTime
+ sortedStartTimes.forEach(function (startTime, idx) {
+ var cueGroup = cuesGroupedByStartTime[startTime];
+ var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration;
+
+ // Map each cue's endTime the next group's startTime
+ cueGroup.forEach(function (cue) {
+ cue.endTime = nextTime;
+ });
+ });
+ }
+ }
+ };
+
+ var win$1 = typeof window !== 'undefined' ? window : {},
+ TARGET = typeof Symbol === 'undefined' ? '__target' : Symbol(),
+ SCRIPT_TYPE = 'application/javascript',
+ BlobBuilder = win$1.BlobBuilder || win$1.WebKitBlobBuilder || win$1.MozBlobBuilder || win$1.MSBlobBuilder,
+ URL = win$1.URL || win$1.webkitURL || URL && URL.msURL,
+ Worker = win$1.Worker;
+
+ /**
+ * Returns a wrapper around Web Worker code that is constructible.
+ *
+ * @function shimWorker
+ *
+ * @param { String } filename The name of the file
+ * @param { Function } fn Function wrapping the code of the worker
+ */
+ function shimWorker(filename, fn) {
+ return function ShimWorker(forceFallback) {
+ var o = this;
+
+ if (!fn) {
+ return new Worker(filename);
+ } else if (Worker && !forceFallback) {
+ // Convert the function's inner code to a string to construct the worker
+ var source = fn.toString().replace(/^function.+?{/, '').slice(0, -1),
+ objURL = createSourceObject(source);
+
+ this[TARGET] = new Worker(objURL);
+ wrapTerminate(this[TARGET], objURL);
+ return this[TARGET];
+ } else {
+ var selfShim = {
+ postMessage: function postMessage(m) {
+ if (o.onmessage) {
+ setTimeout(function () {
+ o.onmessage({ data: m, target: selfShim });
+ });
+ }
+ }
+ };
+
+ fn.call(selfShim);
+ this.postMessage = function (m) {
+ setTimeout(function () {
+ selfShim.onmessage({ data: m, target: o });
+ });
+ };
+ this.isThisThread = true;
+ }
+ };
+ }
+ // Test Worker capabilities
+ if (Worker) {
+ var testWorker,
+ objURL = createSourceObject('self.onmessage = function () {}'),
+ testArray = new Uint8Array(1);
+
+ try {
+ testWorker = new Worker(objURL);
+
+ // Native browser on some Samsung devices throws for transferables, let's detect it
+ testWorker.postMessage(testArray, [testArray.buffer]);
+ } catch (e) {
+ Worker = null;
+ } finally {
+ URL.revokeObjectURL(objURL);
+ if (testWorker) {
+ testWorker.terminate();
+ }
+ }
+ }
+
+ function createSourceObject(str) {
+ try {
+ return URL.createObjectURL(new Blob([str], { type: SCRIPT_TYPE }));
+ } catch (e) {
+ var blob = new BlobBuilder();
+ blob.append(str);
+ return URL.createObjectURL(blob.getBlob(type));
+ }
+ }
+
+ function wrapTerminate(worker, objURL) {
+ if (!worker || !objURL) return;
+ var term = worker.terminate;
+ worker.objURL = objURL;
+ worker.terminate = function () {
+ if (worker.objURL) URL.revokeObjectURL(worker.objURL);
+ term.call(worker);
+ };
+ }
+
+ var TransmuxWorker = new shimWorker("./transmuxer-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var transmuxerWorker = function () {
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Functions that generate fragmented MP4s suitable for use with Media
+ * Source Extensions.
+ */
+
+ var UINT32_MAX = Math.pow(2, 32) - 1;
+
+ var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS;
+
+ // pre-calculate constants
+ (function () {
+ var i;
+ types = {
+ avc1: [], // codingname
+ avcC: [],
+ btrt: [],
+ dinf: [],
+ dref: [],
+ esds: [],
+ ftyp: [],
+ hdlr: [],
+ mdat: [],
+ mdhd: [],
+ mdia: [],
+ mfhd: [],
+ minf: [],
+ moof: [],
+ moov: [],
+ mp4a: [], // codingname
+ mvex: [],
+ mvhd: [],
+ sdtp: [],
+ smhd: [],
+ stbl: [],
+ stco: [],
+ stsc: [],
+ stsd: [],
+ stsz: [],
+ stts: [],
+ styp: [],
+ tfdt: [],
+ tfhd: [],
+ traf: [],
+ trak: [],
+ trun: [],
+ trex: [],
+ tkhd: [],
+ vmhd: []
+ };
+
+ // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+ // don't throw an error
+ if (typeof Uint8Array === 'undefined') {
+ return;
+ }
+
+ for (i in types) {
+ if (types.hasOwnProperty(i)) {
+ types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+ }
+ }
+
+ MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+ AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+ MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+ VIDEO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+ ]);
+ AUDIO_HDLR = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+ ]);
+ HDLR_TYPES = {
+ video: VIDEO_HDLR,
+ audio: AUDIO_HDLR
+ };
+ DREF = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // entry_count
+ 0x00, 0x00, 0x00, 0x0c, // entry_size
+ 0x75, 0x72, 0x6c, 0x20, // 'url' type
+ 0x00, // version 0
+ 0x00, 0x00, 0x01 // entry_flags
+ ]);
+ SMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, // balance, 0 means centered
+ 0x00, 0x00 // reserved
+ ]);
+ STCO = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00 // entry_count
+ ]);
+ STSC = STCO;
+ STSZ = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x00, // sample_size
+ 0x00, 0x00, 0x00, 0x00 // sample_count
+ ]);
+ STTS = STCO;
+ VMHD = new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x01, // flags
+ 0x00, 0x00, // graphicsmode
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+ ]);
+ })();
+
+ box = function box(type) {
+ var payload = [],
+ size = 0,
+ i,
+ result,
+ view;
+
+ for (i = 1; i < arguments.length; i++) {
+ payload.push(arguments[i]);
+ }
+
+ i = payload.length;
+
+ // calculate the total size we need to allocate
+ while (i--) {
+ size += payload[i].byteLength;
+ }
+ result = new Uint8Array(size + 8);
+ view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+ view.setUint32(0, result.byteLength);
+ result.set(type, 4);
+
+ // copy the payload into the result
+ for (i = 0, size = 8; i < payload.length; i++) {
+ result.set(payload[i], size);
+ size += payload[i].byteLength;
+ }
+ return result;
+ };
+
+ dinf = function dinf() {
+ return box(types.dinf, box(types.dref, DREF));
+ };
+
+ esds = function esds(track) {
+ return box(types.esds, new Uint8Array([0x00, // version
+ 0x00, 0x00, 0x00, // flags
+
+ // ES_Descriptor
+ 0x03, // tag, ES_DescrTag
+ 0x19, // length
+ 0x00, 0x00, // ES_ID
+ 0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
+
+ // DecoderConfigDescriptor
+ 0x04, // tag, DecoderConfigDescrTag
+ 0x11, // length
+ 0x40, // object type
+ 0x15, // streamType
+ 0x00, 0x06, 0x00, // bufferSizeDB
+ 0x00, 0x00, 0xda, 0xc0, // maxBitrate
+ 0x00, 0x00, 0xda, 0xc0, // avgBitrate
+
+ // DecoderSpecificInfo
+ 0x05, // tag, DecoderSpecificInfoTag
+ 0x02, // length
+ // ISO/IEC 14496-3, AudioSpecificConfig
+ // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+ track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+ ]));
+ };
+
+ ftyp = function ftyp() {
+ return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+ };
+
+ hdlr = function hdlr(type) {
+ return box(types.hdlr, HDLR_TYPES[type]);
+ };
+ mdat = function mdat(data) {
+ return box(types.mdat, data);
+ };
+ mdhd = function mdhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x02, // creation_time
+ 0x00, 0x00, 0x00, 0x03, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+
+ track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
+ 0x55, 0xc4, // 'und' language (undetermined)
+ 0x00, 0x00]);
+
+ // Use the sample rate from the track metadata, when it is
+ // defined. The sample rate can be parsed out of an ADTS header, for
+ // instance.
+ if (track.samplerate) {
+ result[12] = track.samplerate >>> 24 & 0xFF;
+ result[13] = track.samplerate >>> 16 & 0xFF;
+ result[14] = track.samplerate >>> 8 & 0xFF;
+ result[15] = track.samplerate & 0xFF;
+ }
+
+ return box(types.mdhd, result);
+ };
+ mdia = function mdia(track) {
+ return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+ };
+ mfhd = function mfhd(sequenceNumber) {
+ return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
+ (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+ ]));
+ };
+ minf = function minf(track) {
+ return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+ };
+ moof = function moof(sequenceNumber, tracks) {
+ var trackFragments = [],
+ i = tracks.length;
+ // build traf boxes for each track fragment
+ while (i--) {
+ trackFragments[i] = traf(tracks[i]);
+ }
+ return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+ };
+ /**
+ * Returns a movie box.
+ * @param tracks {array} the tracks associated with this movie
+ * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+ */
+ moov = function moov(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trak(tracks[i]);
+ }
+
+ return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+ };
+ mvex = function mvex(tracks) {
+ var i = tracks.length,
+ boxes = [];
+
+ while (i--) {
+ boxes[i] = trex(tracks[i]);
+ }
+ return box.apply(null, [types.mvex].concat(boxes));
+ };
+ mvhd = function mvhd(duration) {
+ var bytes = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01, // creation_time
+ 0x00, 0x00, 0x00, 0x02, // modification_time
+ 0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
+ (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
+ 0x00, 0x01, 0x00, 0x00, // 1.0 rate
+ 0x01, 0x00, // 1.0 volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ 0xff, 0xff, 0xff, 0xff // next_track_ID
+ ]);
+ return box(types.mvhd, bytes);
+ };
+
+ sdtp = function sdtp(track) {
+ var samples = track.samples || [],
+ bytes = new Uint8Array(4 + samples.length),
+ flags,
+ i;
+
+ // leave the full box header (4 bytes) all zero
+
+ // write the sample table
+ for (i = 0; i < samples.length; i++) {
+ flags = samples[i].flags;
+
+ bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+ }
+
+ return box(types.sdtp, bytes);
+ };
+
+ stbl = function stbl(track) {
+ return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+ };
+
+ (function () {
+ var videoSample, audioSample;
+
+ stsd = function stsd(track) {
+
+ return box(types.stsd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ 0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+ };
+
+ videoSample = function videoSample(track) {
+ var sps = track.sps || [],
+ pps = track.pps || [],
+ sequenceParameterSets = [],
+ pictureParameterSets = [],
+ i;
+
+ // assemble the SPSs
+ for (i = 0; i < sps.length; i++) {
+ sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+ sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+ sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+ }
+
+ // assemble the PPSs
+ for (i = 0; i < pps.length; i++) {
+ pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+ pictureParameterSets.push(pps[i].byteLength & 0xFF);
+ pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+ }
+
+ return box(types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
+ (track.width & 0xff00) >> 8, track.width & 0xff, // width
+ (track.height & 0xff00) >> 8, track.height & 0xff, // height
+ 0x00, 0x48, 0x00, 0x00, // horizresolution
+ 0x00, 0x48, 0x00, 0x00, // vertresolution
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // frame_count
+ 0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
+ 0x00, 0x18, // depth = 24
+ 0x11, 0x11 // pre_defined = -1
+ ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
+ track.profileIdc, // AVCProfileIndication
+ track.profileCompatibility, // profile_compatibility
+ track.levelIdc, // AVCLevelIndication
+ 0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+ ].concat([sps.length // numOfSequenceParameterSets
+ ]).concat(sequenceParameterSets).concat([pps.length // numOfPictureParameterSets
+ ]).concat(pictureParameterSets))), // "PPS"
+ box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
+ 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
+ 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
+ );
+ };
+
+ audioSample = function audioSample(track) {
+ return box(types.mp4a, new Uint8Array([
+
+ // SampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x01, // data_reference_index
+
+ // AudioSampleEntry, ISO/IEC 14496-12
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
+
+ (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
+ 0x00, 0x00, // pre_defined
+ 0x00, 0x00, // reserved
+
+ (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+
+ // MP4AudioSampleEntry, ISO/IEC 14496-14
+ ]), esds(track));
+ };
+ })();
+
+ tkhd = function tkhd(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x07, // flags
+ 0x00, 0x00, 0x00, 0x00, // creation_time
+ 0x00, 0x00, 0x00, 0x00, // modification_time
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x00, // reserved
+ (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
+ 0x00, 0x00, // layer
+ 0x00, 0x00, // alternate_group
+ 0x01, 0x00, // non-audio track volume
+ 0x00, 0x00, // reserved
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
+ (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
+ (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+ ]);
+
+ return box(types.tkhd, result);
+ };
+
+ /**
+ * Generate a track fragment (traf) box. A traf box collects metadata
+ * about tracks in a movie fragment (moof) box.
+ */
+ traf = function traf(track) {
+ var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+
+ trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x3a, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x00, 0x00, 0x00 // default_sample_flags
+ ]));
+
+ upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));
+ lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));
+
+ trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
+ 0x00, 0x00, 0x00, // flags
+ // baseMediaDecodeTime
+ upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF]));
+
+ // the data offset specifies the number of bytes from the start of
+ // the containing moof to the first payload byte of the associated
+ // mdat
+ dataOffset = 32 + // tfhd
+ 20 + // tfdt
+ 8 + // traf header
+ 16 + // mfhd
+ 8 + // moof header
+ 8; // mdat header
+
+ // audio tracks require less metadata
+ if (track.type === 'audio') {
+ trackFragmentRun = trun(track, dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+ }
+
+ // video tracks should contain an independent and disposable samples
+ // box (sdtp)
+ // generate one and adjust offsets to match
+ sampleDependencyTable = sdtp(track);
+ trackFragmentRun = trun(track, sampleDependencyTable.length + dataOffset);
+ return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+ };
+
+ /**
+ * Generate a track box.
+ * @param track {object} a track definition
+ * @return {Uint8Array} the track box
+ */
+ trak = function trak(track) {
+ track.duration = track.duration || 0xffffffff;
+ return box(types.trak, tkhd(track), mdia(track));
+ };
+
+ trex = function trex(track) {
+ var result = new Uint8Array([0x00, // version 0
+ 0x00, 0x00, 0x00, // flags
+ (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
+ 0x00, 0x00, 0x00, 0x01, // default_sample_description_index
+ 0x00, 0x00, 0x00, 0x00, // default_sample_duration
+ 0x00, 0x00, 0x00, 0x00, // default_sample_size
+ 0x00, 0x01, 0x00, 0x01 // default_sample_flags
+ ]);
+ // the last two bytes of default_sample_flags is the sample
+ // degradation priority, a hint about the importance of this sample
+ // relative to others. Lower the degradation priority for all sample
+ // types other than video.
+ if (track.type !== 'video') {
+ result[result.length - 1] = 0x00;
+ }
+
+ return box(types.trex, result);
+ };
+
+ (function () {
+ var audioTrun, videoTrun, trunHeader;
+
+ // This method assumes all samples are uniform. That is, if a
+ // duration is present for the first sample, it will be present for
+ // all subsequent samples.
+ // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+ trunHeader = function trunHeader(samples, offset) {
+ var durationPresent = 0,
+ sizePresent = 0,
+ flagsPresent = 0,
+ compositionTimeOffset = 0;
+
+ // trun flag constants
+ if (samples.length) {
+ if (samples[0].duration !== undefined) {
+ durationPresent = 0x1;
+ }
+ if (samples[0].size !== undefined) {
+ sizePresent = 0x2;
+ }
+ if (samples[0].flags !== undefined) {
+ flagsPresent = 0x4;
+ }
+ if (samples[0].compositionTimeOffset !== undefined) {
+ compositionTimeOffset = 0x8;
+ }
+ }
+
+ return [0x00, // version 0
+ 0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
+ (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
+ (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+ ];
+ };
+
+ videoTrun = function videoTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 16 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF, // sample_size
+ sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample, sample.flags.degradationPriority & 0xF0 << 8, sample.flags.degradationPriority & 0x0F, // sample_flags
+ (sample.compositionTimeOffset & 0xFF000000) >>> 24, (sample.compositionTimeOffset & 0xFF0000) >>> 16, (sample.compositionTimeOffset & 0xFF00) >>> 8, sample.compositionTimeOffset & 0xFF // sample_composition_time_offset
+ ]);
+ }
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ audioTrun = function audioTrun(track, offset) {
+ var bytes, samples, sample, i;
+
+ samples = track.samples || [];
+ offset += 8 + 12 + 8 * samples.length;
+
+ bytes = trunHeader(samples, offset);
+
+ for (i = 0; i < samples.length; i++) {
+ sample = samples[i];
+ bytes = bytes.concat([(sample.duration & 0xFF000000) >>> 24, (sample.duration & 0xFF0000) >>> 16, (sample.duration & 0xFF00) >>> 8, sample.duration & 0xFF, // sample_duration
+ (sample.size & 0xFF000000) >>> 24, (sample.size & 0xFF0000) >>> 16, (sample.size & 0xFF00) >>> 8, sample.size & 0xFF]); // sample_size
+ }
+
+ return box(types.trun, new Uint8Array(bytes));
+ };
+
+ trun = function trun(track, offset) {
+ if (track.type === 'audio') {
+ return audioTrun(track, offset);
+ }
+
+ return videoTrun(track, offset);
+ };
+ })();
+
+ var mp4Generator = {
+ ftyp: ftyp,
+ mdat: mdat,
+ moof: moof,
+ moov: moov,
+ initSegment: function initSegment(tracks) {
+ var fileType = ftyp(),
+ movie = moov(tracks),
+ result;
+
+ result = new Uint8Array(fileType.byteLength + movie.byteLength);
+ result.set(fileType);
+ result.set(movie, fileType.byteLength);
+ return result;
+ }
+ };
+
+ var toUnsigned = function toUnsigned(value) {
+ return value >>> 0;
+ };
+
+ var bin = {
+ toUnsigned: toUnsigned
+ };
+
+ var toUnsigned$1 = bin.toUnsigned;
+ var _findBox, parseType, timescale, startTime, getVideoTrackIds;
+
+ // Find the data for a box specified by its path
+ _findBox = function findBox(data, path) {
+ var results = [],
+ i,
+ size,
+ type,
+ end,
+ subresults;
+
+ if (!path.length) {
+ // short-circuit the search for empty paths
+ return null;
+ }
+
+ for (i = 0; i < data.byteLength;) {
+ size = toUnsigned$1(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+
+ type = parseType(data.subarray(i + 4, i + 8));
+
+ end = size > 1 ? i + size : data.byteLength;
+
+ if (type === path[0]) {
+ if (path.length === 1) {
+ // this is the end of the path and we've found the box we were
+ // looking for
+ results.push(data.subarray(i + 8, end));
+ } else {
+ // recursively search for the next box along the path
+ subresults = _findBox(data.subarray(i + 8, end), path.slice(1));
+ if (subresults.length) {
+ results = results.concat(subresults);
+ }
+ }
+ }
+ i = end;
+ }
+
+ // we've finished searching all of data
+ return results;
+ };
+
+ /**
+ * Returns the string representation of an ASCII encoded four byte buffer.
+ * @param buffer {Uint8Array} a four-byte buffer to translate
+ * @return {string} the corresponding string
+ */
+ parseType = function parseType(buffer) {
+ var result = '';
+ result += String.fromCharCode(buffer[0]);
+ result += String.fromCharCode(buffer[1]);
+ result += String.fromCharCode(buffer[2]);
+ result += String.fromCharCode(buffer[3]);
+ return result;
+ };
+
+ /**
+ * Parses an MP4 initialization segment and extracts the timescale
+ * values for any declared tracks. Timescale values indicate the
+ * number of clock ticks per second to assume for time-based values
+ * elsewhere in the MP4.
+ *
+ * To determine the start time of an MP4, you need two pieces of
+ * information: the timescale unit and the earliest base media decode
+ * time. Multiple timescales can be specified within an MP4 but the
+ * base media decode time is always expressed in the timescale from
+ * the media header box for the track:
+ * ```
+ * moov > trak > mdia > mdhd.timescale
+ * ```
+ * @param init {Uint8Array} the bytes of the init segment
+ * @return {object} a hash of track ids to timescale values or null if
+ * the init segment is malformed.
+ */
+ timescale = function timescale(init) {
+ var result = {},
+ traks = _findBox(init, ['moov', 'trak']);
+
+ // mdhd timescale
+ return traks.reduce(function (result, trak) {
+ var tkhd, version, index, id, mdhd;
+
+ tkhd = _findBox(trak, ['tkhd'])[0];
+ if (!tkhd) {
+ return null;
+ }
+ version = tkhd[0];
+ index = version === 0 ? 12 : 20;
+ id = toUnsigned$1(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+
+ mdhd = _findBox(trak, ['mdia', 'mdhd'])[0];
+ if (!mdhd) {
+ return null;
+ }
+ version = mdhd[0];
+ index = version === 0 ? 12 : 20;
+ result[id] = toUnsigned$1(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+ return result;
+ }, result);
+ };
+
+ /**
+ * Determine the base media decode start time, in seconds, for an MP4
+ * fragment. If multiple fragments are specified, the earliest time is
+ * returned.
+ *
+ * The base media decode time can be parsed from track fragment
+ * metadata:
+ * ```
+ * moof > traf > tfdt.baseMediaDecodeTime
+ * ```
+ * It requires the timescale value from the mdhd to interpret.
+ *
+ * @param timescale {object} a hash of track ids to timescale values.
+ * @return {number} the earliest base media decode start time for the
+ * fragment, in seconds
+ */
+ startTime = function startTime(timescale, fragment) {
+ var trafs, baseTimes, result;
+
+ // we need info from two childrend of each track fragment box
+ trafs = _findBox(fragment, ['moof', 'traf']);
+
+ // determine the start times for each track
+ baseTimes = [].concat.apply([], trafs.map(function (traf) {
+ return _findBox(traf, ['tfhd']).map(function (tfhd) {
+ var id, scale, baseTime;
+
+ // get the track id from the tfhd
+ id = toUnsigned$1(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]);
+ // assume a 90kHz clock if no timescale was specified
+ scale = timescale[id] || 90e3;
+
+ // get the base media decode time from the tfdt
+ baseTime = _findBox(traf, ['tfdt']).map(function (tfdt) {
+ var version, result;
+
+ version = tfdt[0];
+ result = toUnsigned$1(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);
+ if (version === 1) {
+ result *= Math.pow(2, 32);
+ result += toUnsigned$1(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);
+ }
+ return result;
+ })[0];
+ baseTime = baseTime || Infinity;
+
+ // convert base time to seconds
+ return baseTime / scale;
+ });
+ }));
+
+ // return the minimum
+ result = Math.min.apply(null, baseTimes);
+ return isFinite(result) ? result : 0;
+ };
+
+ /**
+ * Find the trackIds of the video tracks in this source.
+ * Found by parsing the Handler Reference and Track Header Boxes:
+ * moov > trak > mdia > hdlr
+ * moov > trak > tkhd
+ *
+ * @param {Uint8Array} init - The bytes of the init segment for this source
+ * @return {Number[]} A list of trackIds
+ *
+ * @see ISO-BMFF-12/2015, Section 8.4.3
+ **/
+ getVideoTrackIds = function getVideoTrackIds(init) {
+ var traks = _findBox(init, ['moov', 'trak']);
+ var videoTrackIds = [];
+
+ traks.forEach(function (trak) {
+ var hdlrs = _findBox(trak, ['mdia', 'hdlr']);
+ var tkhds = _findBox(trak, ['tkhd']);
+
+ hdlrs.forEach(function (hdlr, index) {
+ var handlerType = parseType(hdlr.subarray(8, 12));
+ var tkhd = tkhds[index];
+ var view;
+ var version;
+ var trackId;
+
+ if (handlerType === 'vide') {
+ view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+ version = view.getUint8(0);
+ trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+
+ videoTrackIds.push(trackId);
+ }
+ });
+ });
+
+ return videoTrackIds;
+ };
+
+ var probe$$1 = {
+ findBox: _findBox,
+ parseType: parseType,
+ timescale: timescale,
+ startTime: startTime,
+ videoTrackIds: getVideoTrackIds
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2014 Brightcove
+ * All rights reserved.
+ *
+ * A lightweight readable stream implemention that handles event dispatching.
+ * Objects that inherit from streams should call init in their constructors.
+ */
+
+ var Stream = function Stream() {
+ this.init = function () {
+ var listeners = {};
+ /**
+ * Add a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} the callback to be invoked when an event of
+ * the specified type occurs
+ */
+ this.on = function (type, listener) {
+ if (!listeners[type]) {
+ listeners[type] = [];
+ }
+ listeners[type] = listeners[type].concat(listener);
+ };
+ /**
+ * Remove a listener for a specified event type.
+ * @param type {string} the event name
+ * @param listener {function} a function previously registered for this
+ * type of event through `on`
+ */
+ this.off = function (type, listener) {
+ var index;
+ if (!listeners[type]) {
+ return false;
+ }
+ index = listeners[type].indexOf(listener);
+ listeners[type] = listeners[type].slice();
+ listeners[type].splice(index, 1);
+ return index > -1;
+ };
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ * @param type {string} the event name
+ */
+ this.trigger = function (type) {
+ var callbacks, i, length, args;
+ callbacks = listeners[type];
+ if (!callbacks) {
+ return;
+ }
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ args = [];
+ i = arguments.length;
+ for (i = 1; i < arguments.length; ++i) {
+ args.push(arguments[i]);
+ }
+ length = callbacks.length;
+ for (i = 0; i < length; ++i) {
+ callbacks[i].apply(this, args);
+ }
+ }
+ };
+ /**
+ * Destroys the stream and cleans up.
+ */
+ this.dispose = function () {
+ listeners = {};
+ };
+ };
+ };
+
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ * @param destination {stream} the stream that will receive all `data` events
+ * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+ * when the current stream emits a 'done' event
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+ Stream.prototype.pipe = function (destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+
+ this.on('done', function (flushSource) {
+ destination.flush(flushSource);
+ });
+
+ return destination;
+ };
+
+ // Default stream functions that are expected to be overridden to perform
+ // actual work. These are provided by the prototype as a sort of no-op
+ // implementation so that we don't have to check for their existence in the
+ // `pipe` function above.
+ Stream.prototype.push = function (data) {
+ this.trigger('data', data);
+ };
+
+ Stream.prototype.flush = function (flushSource) {
+ this.trigger('done', flushSource);
+ };
+
+ var stream = Stream;
+
+ // Convert an array of nal units into an array of frames with each frame being
+ // composed of the nal units that make up that frame
+ // Also keep track of cummulative data about the frame from the nal units such
+ // as the frame duration, starting pts, etc.
+ var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
+ var i,
+ currentNal,
+ currentFrame = [],
+ frames = [];
+
+ currentFrame.byteLength = 0;
+
+ for (i = 0; i < nalUnits.length; i++) {
+ currentNal = nalUnits[i];
+
+ // Split on 'aud'-type nal units
+ if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+ // Since the very first nal unit is expected to be an AUD
+ // only push to the frames array when currentFrame is not empty
+ if (currentFrame.length) {
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ frames.push(currentFrame);
+ }
+ currentFrame = [currentNal];
+ currentFrame.byteLength = currentNal.data.byteLength;
+ currentFrame.pts = currentNal.pts;
+ currentFrame.dts = currentNal.dts;
+ } else {
+ // Specifically flag key frames for ease of use later
+ if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+ currentFrame.keyFrame = true;
+ }
+ currentFrame.duration = currentNal.dts - currentFrame.dts;
+ currentFrame.byteLength += currentNal.data.byteLength;
+ currentFrame.push(currentNal);
+ }
+ }
+
+ // For the last frame, use the duration of the previous frame if we
+ // have nothing better to go on
+ if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+ currentFrame.duration = frames[frames.length - 1].duration;
+ }
+
+ // Push the final frame
+ frames.push(currentFrame);
+ return frames;
+ };
+
+ // Convert an array of frames into an array of Gop with each Gop being composed
+ // of the frames that make up that Gop
+ // Also keep track of cummulative data about the Gop from the frames such as the
+ // Gop duration, starting pts, etc.
+ var groupFramesIntoGops = function groupFramesIntoGops(frames) {
+ var i,
+ currentFrame,
+ currentGop = [],
+ gops = [];
+
+ // We must pre-set some of the values on the Gop since we
+ // keep running totals of these values
+ currentGop.byteLength = 0;
+ currentGop.nalCount = 0;
+ currentGop.duration = 0;
+ currentGop.pts = frames[0].pts;
+ currentGop.dts = frames[0].dts;
+
+ // store some metadata about all the Gops
+ gops.byteLength = 0;
+ gops.nalCount = 0;
+ gops.duration = 0;
+ gops.pts = frames[0].pts;
+ gops.dts = frames[0].dts;
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ if (currentFrame.keyFrame) {
+ // Since the very first frame is expected to be an keyframe
+ // only push to the gops array when currentGop is not empty
+ if (currentGop.length) {
+ gops.push(currentGop);
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+ }
+
+ currentGop = [currentFrame];
+ currentGop.nalCount = currentFrame.length;
+ currentGop.byteLength = currentFrame.byteLength;
+ currentGop.pts = currentFrame.pts;
+ currentGop.dts = currentFrame.dts;
+ currentGop.duration = currentFrame.duration;
+ } else {
+ currentGop.duration += currentFrame.duration;
+ currentGop.nalCount += currentFrame.length;
+ currentGop.byteLength += currentFrame.byteLength;
+ currentGop.push(currentFrame);
+ }
+ }
+
+ if (gops.length && currentGop.duration <= 0) {
+ currentGop.duration = gops[gops.length - 1].duration;
+ }
+ gops.byteLength += currentGop.byteLength;
+ gops.nalCount += currentGop.nalCount;
+ gops.duration += currentGop.duration;
+
+ // push the final Gop
+ gops.push(currentGop);
+ return gops;
+ };
+
+ /*
+ * Search for the first keyframe in the GOPs and throw away all frames
+ * until that keyframe. Then extend the duration of the pulled keyframe
+ * and pull the PTS and DTS of the keyframe so that it covers the time
+ * range of the frames that were disposed.
+ *
+ * @param {Array} gops video GOPs
+ * @returns {Array} modified video GOPs
+ */
+ var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
+ var currentGop;
+
+ if (!gops[0][0].keyFrame && gops.length > 1) {
+ // Remove the first GOP
+ currentGop = gops.shift();
+
+ gops.byteLength -= currentGop.byteLength;
+ gops.nalCount -= currentGop.nalCount;
+
+ // Extend the first frame of what is now the
+ // first gop to cover the time period of the
+ // frames we just removed
+ gops[0][0].dts = currentGop.dts;
+ gops[0][0].pts = currentGop.pts;
+ gops[0][0].duration += currentGop.duration;
+ }
+
+ return gops;
+ };
+
+ /**
+ * Default sample object
+ * see ISO/IEC 14496-12:2012, section 8.6.4.3
+ */
+ var createDefaultSample = function createDefaultSample() {
+ return {
+ size: 0,
+ flags: {
+ isLeading: 0,
+ dependsOn: 1,
+ isDependedOn: 0,
+ hasRedundancy: 0,
+ degradationPriority: 0,
+ isNonSyncSample: 1
+ }
+ };
+ };
+
+ /*
+ * Collates information from a video frame into an object for eventual
+ * entry into an MP4 sample table.
+ *
+ * @param {Object} frame the video frame
+ * @param {Number} dataOffset the byte offset to position the sample
+ * @return {Object} object containing sample table info for a frame
+ */
+ var sampleForFrame = function sampleForFrame(frame, dataOffset) {
+ var sample = createDefaultSample();
+
+ sample.dataOffset = dataOffset;
+ sample.compositionTimeOffset = frame.pts - frame.dts;
+ sample.duration = frame.duration;
+ sample.size = 4 * frame.length; // Space for nal unit size
+ sample.size += frame.byteLength;
+
+ if (frame.keyFrame) {
+ sample.flags.dependsOn = 2;
+ sample.flags.isNonSyncSample = 0;
+ }
+
+ return sample;
+ };
+
+ // generate the track's sample table from an array of gops
+ var generateSampleTable = function generateSampleTable(gops, baseDataOffset) {
+ var h,
+ i,
+ sample,
+ currentGop,
+ currentFrame,
+ dataOffset = baseDataOffset || 0,
+ samples = [];
+
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ sample = sampleForFrame(currentFrame, dataOffset);
+
+ dataOffset += sample.size;
+
+ samples.push(sample);
+ }
+ }
+ return samples;
+ };
+
+ // generate the track's raw mdat data from an array of gops
+ var concatenateNalData = function concatenateNalData(gops) {
+ var h,
+ i,
+ j,
+ currentGop,
+ currentFrame,
+ currentNal,
+ dataOffset = 0,
+ nalsByteLength = gops.byteLength,
+ numberOfNals = gops.nalCount,
+ totalByteLength = nalsByteLength + 4 * numberOfNals,
+ data = new Uint8Array(totalByteLength),
+ view = new DataView(data.buffer);
+
+ // For each Gop..
+ for (h = 0; h < gops.length; h++) {
+ currentGop = gops[h];
+
+ // For each Frame..
+ for (i = 0; i < currentGop.length; i++) {
+ currentFrame = currentGop[i];
+
+ // For each NAL..
+ for (j = 0; j < currentFrame.length; j++) {
+ currentNal = currentFrame[j];
+
+ view.setUint32(dataOffset, currentNal.data.byteLength);
+ dataOffset += 4;
+ data.set(currentNal.data, dataOffset);
+ dataOffset += currentNal.data.byteLength;
+ }
+ }
+ }
+ return data;
+ };
+
+ var frameUtils = {
+ groupNalsIntoFrames: groupNalsIntoFrames,
+ groupFramesIntoGops: groupFramesIntoGops,
+ extendFirstKeyFrame: extendFirstKeyFrame,
+ generateSampleTable: generateSampleTable,
+ concatenateNalData: concatenateNalData
+ };
+
+ var ONE_SECOND_IN_TS = 90000; // 90kHz clock
+
+ /**
+ * Store information about the start and end of the track and the
+ * duration for each frame/sample we process in order to calculate
+ * the baseMediaDecodeTime
+ */
+ var collectDtsInfo = function collectDtsInfo(track, data) {
+ if (typeof data.pts === 'number') {
+ if (track.timelineStartInfo.pts === undefined) {
+ track.timelineStartInfo.pts = data.pts;
+ }
+
+ if (track.minSegmentPts === undefined) {
+ track.minSegmentPts = data.pts;
+ } else {
+ track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+ }
+
+ if (track.maxSegmentPts === undefined) {
+ track.maxSegmentPts = data.pts;
+ } else {
+ track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+ }
+ }
+
+ if (typeof data.dts === 'number') {
+ if (track.timelineStartInfo.dts === undefined) {
+ track.timelineStartInfo.dts = data.dts;
+ }
+
+ if (track.minSegmentDts === undefined) {
+ track.minSegmentDts = data.dts;
+ } else {
+ track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+ }
+
+ if (track.maxSegmentDts === undefined) {
+ track.maxSegmentDts = data.dts;
+ } else {
+ track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+ }
+ }
+ };
+
+ /**
+ * Clear values used to calculate the baseMediaDecodeTime between
+ * tracks
+ */
+ var clearDtsInfo = function clearDtsInfo(track) {
+ delete track.minSegmentDts;
+ delete track.maxSegmentDts;
+ delete track.minSegmentPts;
+ delete track.maxSegmentPts;
+ };
+
+ /**
+ * Calculate the track's baseMediaDecodeTime based on the earliest
+ * DTS the transmuxer has ever seen and the minimum DTS for the
+ * current track
+ * @param track {object} track metadata configuration
+ * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
+ var baseMediaDecodeTime,
+ scale,
+ minSegmentDts = track.minSegmentDts;
+
+ // Optionally adjust the time so the first segment starts at zero.
+ if (!keepOriginalTimestamps) {
+ minSegmentDts -= track.timelineStartInfo.dts;
+ }
+
+ // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+ // we want the start of the first segment to be placed
+ baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime;
+
+ // Add to that the distance this segment is from the very first
+ baseMediaDecodeTime += minSegmentDts;
+
+ // baseMediaDecodeTime must not become negative
+ baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+
+ if (track.type === 'audio') {
+ // Audio has a different clock equal to the sampling_rate so we need to
+ // scale the PTS values into the clock rate of the track
+ scale = track.samplerate / ONE_SECOND_IN_TS;
+ baseMediaDecodeTime *= scale;
+ baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+ }
+
+ return baseMediaDecodeTime;
+ };
+
+ var trackDecodeInfo = {
+ clearDtsInfo: clearDtsInfo,
+ calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+ collectDtsInfo: collectDtsInfo
+ };
+
+ /**
+ * mux.js
+ *
+ * Copyright (c) 2015 Brightcove
+ * All rights reserved.
+ *
+ * Reads in-band caption information from a video elementary
+ * stream. Captions must follow the CEA-708 standard for injection
+ * into an MPEG-2 transport streams.
+ * @see https://en.wikipedia.org/wiki/CEA-708
+ * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+ */
+
+ // Supplemental enhancement information (SEI) NAL units have a
+ // payload type field to indicate how they are to be
+ // interpreted. CEAS-708 caption content is always transmitted with
+ // payload type 0x04.
+
+ var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ RBSP_TRAILING_BITS = 128;
+
+ /**
+ * Parse a supplemental enhancement information (SEI) NAL unit.
+ * Stops parsing once a message of type ITU T T35 has been found.
+ *
+ * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+ * @return {object} the parsed SEI payload
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ */
+ var parseSei = function parseSei(bytes) {
+ var i = 0,
+ result = {
+ payloadType: -1,
+ payloadSize: 0
+ },
+ payloadType = 0,
+ payloadSize = 0;
+
+ // go through the sei_rbsp parsing each each individual sei_message
+ while (i < bytes.byteLength) {
+ // stop once we have hit the end of the sei_rbsp
+ if (bytes[i] === RBSP_TRAILING_BITS) {
+ break;
+ }
+
+ // Parse payload type
+ while (bytes[i] === 0xFF) {
+ payloadType += 255;
+ i++;
+ }
+ payloadType += bytes[i++];
+
+ // Parse payload size
+ while (bytes[i] === 0xFF) {
+ payloadSize += 255;
+ i++;
+ }
+ payloadSize += bytes[i++];
+
+ // this sei_message is a 608/708 caption so save it and break
+ // there can only ever be one caption message in a frame's sei
+ if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+ result.payloadType = payloadType;
+ result.payloadSize = payloadSize;
+ result.payload = bytes.subarray(i, i + payloadSize);
+ break;
+ }
+
+ // skip the payload and parse the next message
+ i += payloadSize;
+ payloadType = 0;
+ payloadSize = 0;
+ }
+
+ return result;
+ };
+
+ // see ANSI/SCTE 128-1 (2013), section 8.1
+ var parseUserData = function parseUserData(sei) {
+ // itu_t_t35_contry_code must be 181 (United States) for
+ // captions
+ if (sei.payload[0] !== 181) {
+ return null;
+ }
+
+ // itu_t_t35_provider_code should be 49 (ATSC) for captions
+ if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+ return null;
+ }
+
+ // the user_identifier should be "GA94" to indicate ATSC1 data
+ if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+ return null;
+ }
+
+ // finally, user_data_type_code should be 0x03 for caption data
+ if (sei.payload[7] !== 0x03) {
+ return null;
+ }
+
+ // return the user_data_type_structure and strip the trailing
+ // marker bits
+ return sei.payload.subarray(8, sei.payload.length - 1);
+ };
+
+ // see CEA-708-D, section 4.4
+ var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
+ var results = [],
+ i,
+ count,
+ offset,
+ data;
+
+ // if this is just filler, return immediately
+ if (!(userData[0] & 0x40)) {
+ return results;
+ }
+
+ // parse out the cc_data_1 and cc_data_2 fields
+ count = userData[0] & 0x1f;
+ for (i = 0; i < count; i++) {
+ offset = i * 3;
+ data = {
+ type: userData[offset + 2] & 0x03,
+ pts: pts
+ };
+
+ // capture cc data when cc_valid is 1
+ if (userData[offset + 2] & 0x04) {
+ data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+ results.push(data);
+ }
+ }
+ return results;
+ };
+
+ var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ // exports
+ var captionPacketParser = {
+ parseSei: parseSei,
+ parseUserData: parseUserData,
+ parseCaptionPackets: parseCaptionPackets,
+ discardEmulationPreventionBytes: discardEmulationPreventionBytes,
+ USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+ };
+
+ // -----------------
+ // Link To Transport
+ // -----------------
+
+
+ var CaptionStream = function CaptionStream() {
+
+ CaptionStream.prototype.init.call(this);
+
+ this.captionPackets_ = [];
+
+ this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
+ new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+ ];
+
+ this.reset();
+
+ // forward data and done events from CCs to this CaptionStream
+ this.ccStreams_.forEach(function (cc) {
+ cc.on('data', this.trigger.bind(this, 'data'));
+ cc.on('done', this.trigger.bind(this, 'done'));
+ }, this);
+ };
+
+ CaptionStream.prototype = new stream();
+ CaptionStream.prototype.push = function (event) {
+ var sei, userData, newCaptionPackets;
+
+ // only examine SEI NALs
+ if (event.nalUnitType !== 'sei_rbsp') {
+ return;
+ }
+
+ // parse the sei
+ sei = captionPacketParser.parseSei(event.escapedRBSP);
+
+ // ignore everything but user_data_registered_itu_t_t35
+ if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
+ return;
+ }
+
+ // parse out the user data payload
+ userData = captionPacketParser.parseUserData(sei);
+
+ // ignore unrecognized userData
+ if (!userData) {
+ return;
+ }
+
+ // Sometimes, the same segment # will be downloaded twice. To stop the
+ // caption data from being processed twice, we track the latest dts we've
+ // received and ignore everything with a dts before that. However, since
+ // data for a specific dts can be split across packets on either side of
+ // a segment boundary, we need to make sure we *don't* ignore the packets
+ // from the *next* segment that have dts === this.latestDts_. By constantly
+ // tracking the number of packets received with dts === this.latestDts_, we
+ // know how many should be ignored once we start receiving duplicates.
+ if (event.dts < this.latestDts_) {
+ // We've started getting older data, so set the flag.
+ this.ignoreNextEqualDts_ = true;
+ return;
+ } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+ this.numSameDts_--;
+ if (!this.numSameDts_) {
+ // We've received the last duplicate packet, time to start processing again
+ this.ignoreNextEqualDts_ = false;
+ }
+ return;
+ }
+
+ // parse out CC data packets and save them for later
+ newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
+ this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+ if (this.latestDts_ !== event.dts) {
+ this.numSameDts_ = 0;
+ }
+ this.numSameDts_++;
+ this.latestDts_ = event.dts;
+ };
+
+ CaptionStream.prototype.flush = function () {
+ // make sure we actually parsed captions before proceeding
+ if (!this.captionPackets_.length) {
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ }
+
+ // In Chrome, the Array#sort function is not stable so add a
+ // presortIndex that we can use to ensure we get a stable-sort
+ this.captionPackets_.forEach(function (elem, idx) {
+ elem.presortIndex = idx;
+ });
+
+ // sort caption byte-pairs based on their PTS values
+ this.captionPackets_.sort(function (a, b) {
+ if (a.pts === b.pts) {
+ return a.presortIndex - b.presortIndex;
+ }
+ return a.pts - b.pts;
+ });
+
+ this.captionPackets_.forEach(function (packet) {
+ if (packet.type < 2) {
+ // Dispatch packet to the right Cea608Stream
+ this.dispatchCea608Packet(packet);
+ }
+ // this is where an 'else' would go for a dispatching packets
+ // to a theoretical Cea708Stream that handles SERVICEn data
+ }, this);
+
+ this.captionPackets_.length = 0;
+ this.ccStreams_.forEach(function (cc) {
+ cc.flush();
+ }, this);
+ return;
+ };
+
+ CaptionStream.prototype.reset = function () {
+ this.latestDts_ = null;
+ this.ignoreNextEqualDts_ = false;
+ this.numSameDts_ = 0;
+ this.activeCea608Channel_ = [null, null];
+ this.ccStreams_.forEach(function (ccStream) {
+ ccStream.reset();
+ });
+ };
+
+ CaptionStream.prototype.dispatchCea608Packet = function (packet) {
+ // NOTE: packet.type is the CEA608 field
+ if (this.setsChannel1Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 0;
+ } else if (this.setsChannel2Active(packet)) {
+ this.activeCea608Channel_[packet.type] = 1;
+ }
+ if (this.activeCea608Channel_[packet.type] === null) {
+ // If we haven't received anything to set the active channel, discard the
+ // data; we don't want jumbled captions
+ return;
+ }
+ this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+ };
+
+ CaptionStream.prototype.setsChannel1Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1000;
+ };
+ CaptionStream.prototype.setsChannel2Active = function (packet) {
+ return (packet.ccData & 0x7800) === 0x1800;
+ };
+
+ // ----------------------
+ // Session to Application
+ // ----------------------
+
+ // This hash maps non-ASCII, special, and extended character codes to their
+ // proper Unicode equivalent. The first keys that are only a single byte
+ // are the non-standard ASCII characters, which simply map the CEA608 byte
+ // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+ // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+ // can be performed regardless of the field and data channel on which the
+ // character code was received.
+ var CHARACTER_TRANSLATION = {
+ 0x2a: 0xe1, // á
+ 0x5c: 0xe9, // é
+ 0x5e: 0xed, // í
+ 0x5f: 0xf3, // ó
+ 0x60: 0xfa, // ú
+ 0x7b: 0xe7, // ç
+ 0x7c: 0xf7, // ÷
+ 0x7d: 0xd1, // Ñ
+ 0x7e: 0xf1, // ñ
+ 0x7f: 0x2588, // █
+ 0x0130: 0xae, // ®
+ 0x0131: 0xb0, // °
+ 0x0132: 0xbd, // ½
+ 0x0133: 0xbf, // ¿
+ 0x0134: 0x2122, // ™
+ 0x0135: 0xa2, // ¢
+ 0x0136: 0xa3, // £
+ 0x0137: 0x266a, // ♪
+ 0x0138: 0xe0, // à
+ 0x0139: 0xa0, //
+ 0x013a: 0xe8, // è
+ 0x013b: 0xe2, // â
+ 0x013c: 0xea, // ê
+ 0x013d: 0xee, // î
+ 0x013e: 0xf4, // ô
+ 0x013f: 0xfb, // û
+ 0x0220: 0xc1, // Á
+ 0x0221: 0xc9, // É
+ 0x0222: 0xd3, // Ó
+ 0x0223: 0xda, // Ú
+ 0x0224: 0xdc, // Ü
+ 0x0225: 0xfc, // ü
+ 0x0226: 0x2018, // ‘
+ 0x0227: 0xa1, // ¡
+ 0x0228: 0x2a, // *
+ 0x0229: 0x27, // '
+ 0x022a: 0x2014, // —
+ 0x022b: 0xa9, // ©
+ 0x022c: 0x2120, // ℠
+ 0x022d: 0x2022, // •
+ 0x022e: 0x201c, // “
+ 0x022f: 0x201d, // ”
+ 0x0230: 0xc0, // À
+ 0x0231: 0xc2, // Â
+ 0x0232: 0xc7, // Ç
+ 0x0233: 0xc8, // È
+ 0x0234: 0xca, // Ê
+ 0x0235: 0xcb, // Ë
+ 0x0236: 0xeb, // ë
+ 0x0237: 0xce, // Î
+ 0x0238: 0xcf, // Ï
+ 0x0239: 0xef, // ï
+ 0x023a: 0xd4, // Ô
+ 0x023b: 0xd9, // Ù
+ 0x023c: 0xf9, // ù
+ 0x023d: 0xdb, // Û
+ 0x023e: 0xab, // «
+ 0x023f: 0xbb, // »
+ 0x0320: 0xc3, // Ã
+ 0x0321: 0xe3, // ã
+ 0x0322: 0xcd, // Í
+ 0x0323: 0xcc, // Ì
+ 0x0324: 0xec, // ì
+ 0x0325: 0xd2, // Ò
+ 0x0326: 0xf2, // ò
+ 0x0327: 0xd5, // Õ
+ 0x0328: 0xf5, // õ
+ 0x0329: 0x7b, // {
+ 0x032a: 0x7d, // }
+ 0x032b: 0x5c, // \
+ 0x032c: 0x5e, // ^
+ 0x032d: 0x5f, // _
+ 0x032e: 0x7c, // |
+ 0x032f: 0x7e, // ~
+ 0x0330: 0xc4, // Ä
+ 0x0331: 0xe4, // ä
+ 0x0332: 0xd6, // Ö
+ 0x0333: 0xf6, // ö
+ 0x0334: 0xdf, // ß
+ 0x0335: 0xa5, // ¥
+ 0x0336: 0xa4, // ¤
+ 0x0337: 0x2502, // │
+ 0x0338: 0xc5, // Å
+ 0x0339: 0xe5, // å
+ 0x033a: 0xd8, // Ø
+ 0x033b: 0xf8, // ø
+ 0x033c: 0x250c, // ┌
+ 0x033d: 0x2510, // ┐
+ 0x033e: 0x2514, // └
+ 0x033f: 0x2518 // ┘
+ };
+
+ var getCharFromCode = function getCharFromCode(code) {
+ if (code === null) {
+ return '';
+ }
+ code = CHARACTER_TRANSLATION[code] || code;
+ return String.fromCharCode(code);
+ };
+
+ // the index of the last row in a CEA-608 display buffer
+ var BOTTOM_ROW = 14;
+
+ // This array is used for mapping PACs -> row #, since there's no way of
+ // getting it through bit logic.
+ var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420];
+
+ // CEA-608 captions are rendered onto a 34x15 matrix of character
+ // cells. The "bottom" row is the last element in the outer array.
+ var createDisplayBuffer = function createDisplayBuffer() {
+ var result = [],
+ i = BOTTOM_ROW + 1;
+ while (i--) {
+ result.push('');
+ }
+ return result;
+ };
+
+ var Cea608Stream = function Cea608Stream(field, dataChannel) {
+ Cea608Stream.prototype.init.call(this);
+
+ this.field_ = field || 0;
+ this.dataChannel_ = dataChannel || 0;
+
+ this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+
+ this.setConstants();
+ this.reset();
+
+ this.push = function (packet) {
+ var data, swap, char0, char1, text;
+ // remove the parity bits
+ data = packet.ccData & 0x7f7f;
+
+ // ignore duplicate control codes; the spec demands they're sent twice
+ if (data === this.lastControlCode_) {
+ this.lastControlCode_ = null;
+ return;
+ }
+
+ // Store control codes
+ if ((data & 0xf000) === 0x1000) {
+ this.lastControlCode_ = data;
+ } else if (data !== this.PADDING_) {
+ this.lastControlCode_ = null;
+ }
+
+ char0 = data >>> 8;
+ char1 = data & 0xff;
+
+ if (data === this.PADDING_) {
+ return;
+ } else if (data === this.RESUME_CAPTION_LOADING_) {
+ this.mode_ = 'popOn';
+ } else if (data === this.END_OF_CAPTION_) {
+ // If an EOC is received while in paint-on mode, the displayed caption
+ // text should be swapped to non-displayed memory as if it was a pop-on
+ // caption. Because of that, we should explicitly switch back to pop-on
+ // mode
+ this.mode_ = 'popOn';
+ this.clearFormatting(packet.pts);
+ // if a caption was being displayed, it's gone now
+ this.flushDisplayed(packet.pts);
+
+ // flip memory
+ swap = this.displayed_;
+ this.displayed_ = this.nonDisplayed_;
+ this.nonDisplayed_ = swap;
+
+ // start measuring the time to display the caption
+ this.startPts_ = packet.pts;
+ } else if (data === this.ROLL_UP_2_ROWS_) {
+ this.rollUpRows_ = 2;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_3_ROWS_) {
+ this.rollUpRows_ = 3;
+ this.setRollUp(packet.pts);
+ } else if (data === this.ROLL_UP_4_ROWS_) {
+ this.rollUpRows_ = 4;
+ this.setRollUp(packet.pts);
+ } else if (data === this.CARRIAGE_RETURN_) {
+ this.clearFormatting(packet.pts);
+ this.flushDisplayed(packet.pts);
+ this.shiftRowsUp_();
+ this.startPts_ = packet.pts;
+ } else if (data === this.BACKSPACE_) {
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+ } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+ this.nonDisplayed_ = createDisplayBuffer();
+ } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+ if (this.mode_ !== 'paintOn') {
+ // NOTE: This should be removed when proper caption positioning is
+ // implemented
+ this.flushDisplayed(packet.pts);
+ this.displayed_ = createDisplayBuffer();
+ }
+ this.mode_ = 'paintOn';
+ this.startPts_ = packet.pts;
+
+ // Append special characters to caption text
+ } else if (this.isSpecialCharacter(char0, char1)) {
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Append extended characters to caption text
+ } else if (this.isExtCharacter(char0, char1)) {
+ // Extended characters always follow their "non-extended" equivalents.
+ // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+ // decoders are supposed to drop the "è", while compliant decoders
+ // backspace the "e" and insert "è".
+
+ // Delete the previous character
+ if (this.mode_ === 'popOn') {
+ this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+ } else {
+ this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+ }
+
+ // Bitmask char0 so that we can apply character transformations
+ // regardless of field and data channel.
+ // Then byte-shift to the left and OR with char1 so we can pass the
+ // entire character code to `getCharFromCode`.
+ char0 = (char0 & 0x03) << 8;
+ text = getCharFromCode(char0 | char1);
+ this[this.mode_](packet.pts, text);
+ this.column_++;
+
+ // Process mid-row codes
+ } else if (this.isMidRowCode(char0, char1)) {
+ // Attributes are not additive, so clear all formatting
+ this.clearFormatting(packet.pts);
+
+ // According to the standard, mid-row codes
+ // should be replaced with spaces, so add one now
+ this[this.mode_](packet.pts, ' ');
+ this.column_++;
+
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+
+ if ((char1 & 0x1) === 0x1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ // Detect offset control codes and adjust cursor
+ } else if (this.isOffsetControlCode(char0, char1)) {
+ // Cursor position is set by indent PAC (see below) in 4-column
+ // increments, with an additional offset code of 1-3 to reach any
+ // of the 32 columns specified by CEA-608. So all we need to do
+ // here is increment the column cursor by the given offset.
+ this.column_ += char1 & 0x03;
+
+ // Detect PACs (Preamble Address Codes)
+ } else if (this.isPAC(char0, char1)) {
+
+ // There's no logic for PAC -> row mapping, so we have to just
+ // find the row code in an array and use its index :(
+ var row = ROWS.indexOf(data & 0x1f20);
+
+ // Configure the caption window if we're in roll-up mode
+ if (this.mode_ === 'rollUp') {
+ this.setRollUp(packet.pts, row);
+ }
+
+ if (row !== this.row_) {
+ // formatting is only persistent for current row
+ this.clearFormatting(packet.pts);
+ this.row_ = row;
+ }
+ // All PACs can apply underline, so detect and apply
+ // (All odd-numbered second bytes set underline)
+ if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+ this.addFormatting(packet.pts, ['u']);
+ }
+
+ if ((data & 0x10) === 0x10) {
+ // We've got an indent level code. Each successive even number
+ // increments the column cursor by 4, so we can get the desired
+ // column position by bit-shifting to the right (to get n/2)
+ // and multiplying by 4.
+ this.column_ = ((data & 0xe) >> 1) * 4;
+ }
+
+ if (this.isColorPAC(char1)) {
+ // it's a color code, though we only support white, which
+ // can be either normal or italicized. white italics can be
+ // either 0x4e or 0x6e depending on the row, so we just
+ // bitwise-and with 0xe to see if italics should be turned on
+ if ((char1 & 0xe) === 0xe) {
+ this.addFormatting(packet.pts, ['i']);
+ }
+ }
+
+ // We have a normal character in char0, and possibly one in char1
+ } else if (this.isNormalChar(char0)) {
+ if (char1 === 0x00) {
+ char1 = null;
+ }
+ text = getCharFromCode(char0);
+ text += getCharFromCode(char1);
+ this[this.mode_](packet.pts, text);
+ this.column_ += text.length;
+ } // finish data processing
+ };
+ };
+ Cea608Stream.prototype = new stream();
+ // Trigger a cue point that captures the current state of the
+ // display buffer
+ Cea608Stream.prototype.flushDisplayed = function (pts) {
+ var content = this.displayed_
+ // remove spaces from the start and end of the string
+ .map(function (row) {
+ return row.trim();
+ })
+ // combine all text rows to display in one cue
+ .join('\n')
+ // and remove blank rows from the start and end, but not the middle
+ .replace(/^\n+|\n+$/g, '');
+
+ if (content.length) {
+ this.trigger('data', {
+ startPts: this.startPts_,
+ endPts: pts,
+ text: content,
+ stream: this.name_
+ });
+ }
+ };
+
+ /**
+ * Zero out the data, used for startup and on seek
+ */
+ Cea608Stream.prototype.reset = function () {
+ this.mode_ = 'popOn';
+ // When in roll-up mode, the index of the last row that will
+ // actually display captions. If a caption is shifted to a row
+ // with a lower index than this, it is cleared from the display
+ // buffer
+ this.topRow_ = 0;
+ this.startPts_ = 0;
+ this.displayed_ = createDisplayBuffer();
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.lastControlCode_ = null;
+
+ // Track row and column for proper line-breaking and spacing
+ this.column_ = 0;
+ this.row_ = BOTTOM_ROW;
+ this.rollUpRows_ = 2;
+
+ // This variable holds currently-applied formatting
+ this.formatting_ = [];
+ };
+
+ /**
+ * Sets up control code and related constants for this instance
+ */
+ Cea608Stream.prototype.setConstants = function () {
+ // The following attributes have these uses:
+ // ext_ : char0 for mid-row codes, and the base for extended
+ // chars (ext_+0, ext_+1, and ext_+2 are char0s for
+ // extended codes)
+ // control_: char0 for control codes, except byte-shifted to the
+ // left so that we can do this.control_ | CONTROL_CODE
+ // offset_: char0 for tab offset codes
+ //
+ // It's also worth noting that control codes, and _only_ control codes,
+ // differ between field 1 and field2. Field 2 control codes are always
+ // their field 1 value plus 1. That's why there's the "| field" on the
+ // control value.
+ if (this.dataChannel_ === 0) {
+ this.BASE_ = 0x10;
+ this.EXT_ = 0x11;
+ this.CONTROL_ = (0x14 | this.field_) << 8;
+ this.OFFSET_ = 0x17;
+ } else if (this.dataChannel_ === 1) {
+ this.BASE_ = 0x18;
+ this.EXT_ = 0x19;
+ this.CONTROL_ = (0x1c | this.field_) << 8;
+ this.OFFSET_ = 0x1f;
+ }
+
+ // Constants for the LSByte command codes recognized by Cea608Stream. This
+ // list is not exhaustive. For a more comprehensive listing and semantics see
+ // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+ // Padding
+ this.PADDING_ = 0x0000;
+ // Pop-on Mode
+ this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+ this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f;
+ // Roll-up Mode
+ this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+ this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+ this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+ this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d;
+ // paint-on mode
+ this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29;
+ // Erasure
+ this.BACKSPACE_ = this.CONTROL_ | 0x21;
+ this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+ this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is a special character
+ *
+ * Special characters have a second byte in the range 0x30 to 0x3f,
+ * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an special character
+ */
+ Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet data is an extended character
+ *
+ * Extended characters have a second byte in the range 0x20 to 0x3f,
+ * with the first byte being 0x12 or 0x13 (for data channel 1) or
+ * 0x1a or 0x1b (for data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an extended character
+ */
+ Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+ return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a mid-row code
+ *
+ * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+ * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+ * channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a mid-row code
+ */
+ Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+ return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+ };
+
+ /**
+ * Detects if the 2-byte packet is an offset control code
+ *
+ * Offset control codes have a second byte in the range 0x21 to 0x23,
+ * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+ * data channel 2).
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are an offset control code
+ */
+ Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+ return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+ };
+
+ /**
+ * Detects if the 2-byte packet is a Preamble Address Code
+ *
+ * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+ * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+ * range 0x40 to 0x7f.
+ *
+ * @param {Integer} char0 The first byte
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the 2 bytes are a PAC
+ */
+ Cea608Stream.prototype.isPAC = function (char0, char1) {
+ return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a packet's second byte is in the range of a PAC color code
+ *
+ * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+ * 0x60 to 0x6f.
+ *
+ * @param {Integer} char1 The second byte
+ * @return {Boolean} Whether the byte is a color PAC
+ */
+ Cea608Stream.prototype.isColorPAC = function (char1) {
+ return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+ };
+
+ /**
+ * Detects if a single byte is in the range of a normal character
+ *
+ * Normal text bytes are in the range 0x20 to 0x7f.
+ *
+ * @param {Integer} char The byte
+ * @return {Boolean} Whether the byte is a normal character
+ */
+ Cea608Stream.prototype.isNormalChar = function (char) {
+ return char >= 0x20 && char <= 0x7f;
+ };
+
+ /**
+ * Configures roll-up
+ *
+ * @param {Integer} pts Current PTS
+ * @param {Integer} newBaseRow Used by PACs to slide the current window to
+ * a new position
+ */
+ Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+ // Reset the base row to the bottom row when switching modes
+ if (this.mode_ !== 'rollUp') {
+ this.row_ = BOTTOM_ROW;
+ this.mode_ = 'rollUp';
+ // Spec says to wipe memories when switching to roll-up
+ this.flushDisplayed(pts);
+ this.nonDisplayed_ = createDisplayBuffer();
+ this.displayed_ = createDisplayBuffer();
+ }
+
+ if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+ // move currently displayed captions (up or down) to the new base row
+ for (var i = 0; i < this.rollUpRows_; i++) {
+ this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+ this.displayed_[this.row_ - i] = '';
+ }
+ }
+
+ if (newBaseRow === undefined) {
+ newBaseRow = this.row_;
+ }
+ this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+ };
+
+ // Adds the opening HTML tag for the passed character to the caption text,
+ // and keeps track of it for later closing
+ Cea608Stream.prototype.addFormatting = function (pts, format) {
+ this.formatting_ = this.formatting_.concat(format);
+ var text = format.reduce(function (text, format) {
+ return text + '<' + format + '>';
+ }, '');
+ this[this.mode_](pts, text);
+ };
+
+ // Adds HTML closing tags for current formatting to caption text and
+ // clears remembered formatting
+ Cea608Stream.prototype.clearFormatting = function (pts) {
+ if (!this.formatting_.length) {
+ return;
+ }
+ var text = this.formatting_.reverse().reduce(function (text, format) {
+ return text + '</' + format + '>';
+ }, '');
+ this.formatting_ = [];
+ this[this.mode_](pts, text);
+ };
+
+ // Mode Implementations
+ Cea608Stream.prototype.popOn = function (pts, text) {
+ var baseRow = this.nonDisplayed_[this.row_];
+
+ // buffer characters
+ baseRow += text;
+ this.nonDisplayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.rollUp = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ Cea608Stream.prototype.shiftRowsUp_ = function () {
+ var i;
+ // clear out inactive rows
+ for (i = 0; i < this.topRow_; i++) {
+ this.displayed_[i] = '';
+ }
+ for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+ this.displayed_[i] = '';
+ }
+ // shift displayed rows up
+ for (i = this.topRow_; i < this.row_; i++) {
+ this.displayed_[i] = this.displayed_[i + 1];
+ }
+ // clear out the bottom row
+ this.displayed_[this.row_] = '';
+ };
+
+ Cea608Stream.prototype.paintOn = function (pts, text) {
+ var baseRow = this.displayed_[this.row_];
+
+ baseRow += text;
+ this.displayed_[this.row_] = baseRow;
+ };
+
+ // exports
+ var captionStream = {
+ CaptionStream: CaptionStream,
+ Cea608Stream: Cea608Stream
+ };
+
+ var streamTypes = {
+ H264_STREAM_TYPE: 0x1B,
+ ADTS_STREAM_TYPE: 0x0F,
+ METADATA_STREAM_TYPE: 0x15
+ };
+
+ var MAX_TS = 8589934592;
+
+ var RO_THRESH = 4294967296;
+
+ var handleRollover = function handleRollover(value, reference) {
+ var direction = 1;
+
+ if (value > reference) {
+ // If the current timestamp value is greater than our reference timestamp and we detect a
+ // timestamp rollover, this means the roll over is happening in the opposite direction.
+ // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+ // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+ // rollover point. In loading this segment, the timestamp values will be very large,
+ // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+ // the time stamp to be `value - 2^33`.
+ direction = -1;
+ }
+
+ // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+ // cause an incorrect adjustment.
+ while (Math.abs(reference - value) > RO_THRESH) {
+ value += direction * MAX_TS;
+ }
+
+ return value;
+ };
+
+ var TimestampRolloverStream = function TimestampRolloverStream(type) {
+ var lastDTS, referenceDTS;
+
+ TimestampRolloverStream.prototype.init.call(this);
+
+ this.type_ = type;
+
+ this.push = function (data) {
+ if (data.type !== this.type_) {
+ return;
+ }
+
+ if (referenceDTS === undefined) {
+ referenceDTS = data.dts;
+ }
+
+ data.dts = handleRollover(data.dts, referenceDTS);
+ data.pts = handleRollover(data.pts, referenceDTS);
+
+ lastDTS = data.dts;
+
+ this.trigger('data', data);
+ };
+
+ this.flush = function () {
+ referenceDTS = lastDTS;
+ this.trigger('done');
+ };
+
+ this.discontinuity = function () {
+ referenceDTS = void 0;
+ lastDTS = void 0;
+ };
+ };
+
+ TimestampRolloverStream.prototype = new stream();
+
+ var timestampRolloverStream = {
+ TimestampRolloverStream: TimestampRolloverStream,
+ handleRollover: handleRollover
+ };
+
+ var percentEncode = function percentEncode(bytes, start, end) {
+ var i,
+ result = '';
+ for (i = start; i < end; i++) {
+ result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+ }
+ return result;
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as UTf-8.
+ parseUtf8 = function parseUtf8(bytes, start, end) {
+ return decodeURIComponent(percentEncode(bytes, start, end));
+ },
+
+
+ // return the string representation of the specified byte range,
+ // interpreted as ISO-8859-1.
+ parseIso88591 = function parseIso88591(bytes, start, end) {
+ return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+ },
+ parseSyncSafeInteger = function parseSyncSafeInteger(data) {
+ return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+ },
+ tagParsers = {
+ TXXX: function TXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the text fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ // do not include the null terminator in the tag value
+ tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
+ break;
+ }
+ }
+ tag.data = tag.value;
+ },
+ WXXX: function WXXX(tag) {
+ var i;
+ if (tag.data[0] !== 3) {
+ // ignore frames with unrecognized character encodings
+ return;
+ }
+
+ for (i = 1; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.description = parseUtf8(tag.data, 1, i);
+ tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
+ break;
+ }
+ }
+ },
+ PRIV: function PRIV(tag) {
+ var i;
+
+ for (i = 0; i < tag.data.length; i++) {
+ if (tag.data[i] === 0) {
+ // parse the description and URL fields
+ tag.owner = parseIso88591(tag.data, 0, i);
+ break;
+ }
+ }
+ tag.privateData = tag.data.subarray(i + 1);
+ tag.data = tag.privateData;
+ }
+ },
+ _MetadataStream;
+
+ _MetadataStream = function MetadataStream(options) {
+ var settings = {
+ debug: !!(options && options.debug),
+
+ // the bytes of the program-level descriptor field in MP2T
+ // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+ // program element descriptors"
+ descriptor: options && options.descriptor
+ },
+
+
+ // the total size in bytes of the ID3 tag being parsed
+ tagSize = 0,
+
+
+ // tag data that is not complete enough to be parsed
+ buffer = [],
+
+
+ // the total number of bytes currently in the buffer
+ bufferSize = 0,
+ i;
+
+ _MetadataStream.prototype.init.call(this);
+
+ // calculate the text track in-band metadata track dispatch type
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+ this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
+ if (settings.descriptor) {
+ for (i = 0; i < settings.descriptor.length; i++) {
+ this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+ }
+ }
+
+ this.push = function (chunk) {
+ var tag, frameStart, frameSize, frame, i, frameHeader;
+ if (chunk.type !== 'timed-metadata') {
+ return;
+ }
+
+ // if data_alignment_indicator is set in the PES header,
+ // we must have the start of a new ID3 tag. Assume anything
+ // remaining in the buffer was malformed and throw it out
+ if (chunk.dataAlignmentIndicator) {
+ bufferSize = 0;
+ buffer.length = 0;
+ }
+
+ // ignore events that don't look like ID3 data
+ if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+ if (settings.debug) {
+ // eslint-disable-next-line no-console
+ console.log('Skipping unrecognized metadata packet');
+ }
+ return;
+ }
+
+ // add this chunk to the data we've collected so far
+
+ buffer.push(chunk);
+ bufferSize += chunk.data.byteLength;
+
+ // grab the size of the entire frame from the ID3 header
+ if (buffer.length === 1) {
+ // the frame size is transmitted as a 28-bit integer in the
+ // last four bytes of the ID3 header.
+ // The most significant bit of each byte is dropped and the
+ // results concatenated to recover the actual value.
+ tagSize = parseSyncSafeInteger(chunk.data.subarray(6, 10));
+
+ // ID3 reports the tag size excluding the header but it's more
+ // convenient for our comparisons to include it
+ tagSize += 10;
+ }
+
+ // if the entire frame has not arrived, wait for more data
+ if (bufferSize < tagSize) {
+ return;
+ }
+
+ // collect the entire frame so it can be parsed
+ tag = {
+ data: new Uint8Array(tagSize),
+ frames: [],
+ pts: buffer[0].pts,
+ dts: buffer[0].dts
+ };
+ for (i = 0; i < tagSize;) {
+ tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+ i += buffer[0].data.byteLength;
+ bufferSize -= buffer[0].data.byteLength;
+ buffer.shift();
+ }
+
+ // find the start of the first frame and the end of the tag
+ frameStart = 10;
+ if (tag.data[5] & 0x40) {
+ // advance the frame start past the extended header
+ frameStart += 4; // header size field
+ frameStart += parseSyncSafeInteger(tag.data.subarray(10, 14));
+
+ // clip any padding off the end
+ tagSize -= parseSyncSafeInteger(tag.data.subarray(16, 20));
+ }
+
+ // parse one or more ID3 frames
+ // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+ do {
+ // determine the number of bytes in this frame
+ frameSize = parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+ if (frameSize < 1) {
+ // eslint-disable-next-line no-console
+ return console.log('Malformed ID3 frame encountered. Skipping metadata parsing.');
+ }
+ frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+
+ frame = {
+ id: frameHeader,
+ data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+ };
+ frame.key = frame.id;
+ if (tagParsers[frame.id]) {
+ tagParsers[frame.id](frame);
+
+ // handle the special PRIV frame used to indicate the start
+ // time for raw AAC data
+ if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+ var d = frame.data,
+ size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+
+ size *= 4;
+ size += d[7] & 0x03;
+ frame.timeStamp = size;
+ // in raw AAC, all subsequent data will be timestamped based
+ // on the value of this frame
+ // we couldn't have known the appropriate pts and dts before
+ // parsing this ID3 tag so set those values now
+ if (tag.pts === undefined && tag.dts === undefined) {
+ tag.pts = frame.timeStamp;
+ tag.dts = frame.timeStamp;
+ }
+ this.trigger('timestamp', frame);
+ }
+ }
+ tag.frames.push(frame);
+
+ frameStart += 10; // advance past the frame header
+ frameStart += frameSize; // advance past the frame body
+ } while (frameStart < tagSize);
+ this.trigger('data', tag);
+ };
+ };
+ _MetadataStream.prototype = new stream();
+
+ var metadataStream = _MetadataStream;
+
+ var TimestampRolloverStream$1 = timestampRolloverStream.TimestampRolloverStream;
+
+ // object types
+ var _TransportPacketStream, _TransportParseStream, _ElementaryStream;
+
+ // constants
+ var MP2T_PACKET_LENGTH = 188,
+
+
+ // bytes
+ SYNC_BYTE = 0x47;
+
+ /**
+ * Splits an incoming stream of binary data into MPEG-2 Transport
+ * Stream packets.
+ */
+ _TransportPacketStream = function TransportPacketStream() {
+ var buffer = new Uint8Array(MP2T_PACKET_LENGTH),
+ bytesInBuffer = 0;
+
+ _TransportPacketStream.prototype.init.call(this);
+
+ // Deliver new bytes to the stream.
+
+ /**
+ * Split a stream of data into M2TS packets
+ **/
+ this.push = function (bytes) {
+ var startIndex = 0,
+ endIndex = MP2T_PACKET_LENGTH,
+ everything;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (bytesInBuffer) {
+ everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+ everything.set(buffer.subarray(0, bytesInBuffer));
+ everything.set(bytes, bytesInBuffer);
+ bytesInBuffer = 0;
+ } else {
+ everything = bytes;
+ }
+
+ // While we have enough data for a packet
+ while (endIndex < everything.byteLength) {
+ // Look for a pair of start and end sync bytes in the data..
+ if (everything[startIndex] === SYNC_BYTE && everything[endIndex] === SYNC_BYTE) {
+ // We found a packet so emit it and jump one whole packet forward in
+ // the stream
+ this.trigger('data', everything.subarray(startIndex, endIndex));
+ startIndex += MP2T_PACKET_LENGTH;
+ endIndex += MP2T_PACKET_LENGTH;
+ continue;
+ }
+ // If we get here, we have somehow become de-synchronized and we need to step
+ // forward one byte at a time until we find a pair of sync bytes that denote
+ // a packet
+ startIndex++;
+ endIndex++;
+ }
+
+ // If there was some data left over at the end of the segment that couldn't
+ // possibly be a whole packet, keep it because it might be the start of a packet
+ // that continues in the next segment
+ if (startIndex < everything.byteLength) {
+ buffer.set(everything.subarray(startIndex), 0);
+ bytesInBuffer = everything.byteLength - startIndex;
+ }
+ };
+
+ /**
+ * Passes identified M2TS packets to the TransportParseStream to be parsed
+ **/
+ this.flush = function () {
+ // If the buffer contains a whole packet when we are being flushed, emit it
+ // and empty the buffer. Otherwise hold onto the data because it may be
+ // important for decoding the next segment
+ if (bytesInBuffer === MP2T_PACKET_LENGTH && buffer[0] === SYNC_BYTE) {
+ this.trigger('data', buffer);
+ bytesInBuffer = 0;
+ }
+ this.trigger('done');
+ };
+ };
+ _TransportPacketStream.prototype = new stream();
+
+ /**
+ * Accepts an MP2T TransportPacketStream and emits data events with parsed
+ * forms of the individual transport stream packets.
+ */
+ _TransportParseStream = function TransportParseStream() {
+ var parsePsi, parsePat, parsePmt, self;
+ _TransportParseStream.prototype.init.call(this);
+ self = this;
+
+ this.packetsWaitingForPmt = [];
+ this.programMapTable = undefined;
+
+ parsePsi = function parsePsi(payload, psi) {
+ var offset = 0;
+
+ // PSI packets may be split into multiple sections and those
+ // sections may be split into multiple packets. If a PSI
+ // section starts in this packet, the payload_unit_start_indicator
+ // will be true and the first byte of the payload will indicate
+ // the offset from the current position to the start of the
+ // section.
+ if (psi.payloadUnitStartIndicator) {
+ offset += payload[offset] + 1;
+ }
+
+ if (psi.type === 'pat') {
+ parsePat(payload.subarray(offset), psi);
+ } else {
+ parsePmt(payload.subarray(offset), psi);
+ }
+ };
+
+ parsePat = function parsePat(payload, pat) {
+ pat.section_number = payload[7]; // eslint-disable-line camelcase
+ pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+
+ // skip the PSI header and parse the first PMT entry
+ self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+ pat.pmtPid = self.pmtPid;
+ };
+
+ /**
+ * Parse out the relevant fields of a Program Map Table (PMT).
+ * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+ * packet. The first byte in this array should be the table_id
+ * field.
+ * @param pmt {object} the object that should be decorated with
+ * fields parsed from the PMT.
+ */
+ parsePmt = function parsePmt(payload, pmt) {
+ var sectionLength, tableEnd, programInfoLength, offset;
+
+ // PMTs can be sent ahead of the time when they should actually
+ // take effect. We don't believe this should ever be the case
+ // for HLS but we'll ignore "forward" PMT declarations if we see
+ // them. Future PMT declarations have the current_next_indicator
+ // set to zero.
+ if (!(payload[5] & 0x01)) {
+ return;
+ }
+
+ // overwrite any existing program map table
+ self.programMapTable = {
+ video: null,
+ audio: null,
+ 'timed-metadata': {}
+ };
+
+ // the mapping table ends at the end of the current section
+ sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+ tableEnd = 3 + sectionLength - 4;
+
+ // to determine where the table is, we have to figure out how
+ // long the program info descriptors are
+ programInfoLength = (payload[10] & 0x0f) << 8 | payload[11];
+
+ // advance the offset to the first entry in the mapping table
+ offset = 12 + programInfoLength;
+ while (offset < tableEnd) {
+ var streamType = payload[offset];
+ var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2];
+
+ // only map a single elementary_pid for audio and video stream types
+ // TODO: should this be done for metadata too? for now maintain behavior of
+ // multiple metadata streams
+ if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
+ self.programMapTable.video = pid;
+ } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+ self.programMapTable.audio = pid;
+ } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
+ // map pid to stream type for metadata streams
+ self.programMapTable['timed-metadata'][pid] = streamType;
+ }
+
+ // move to the next table entry
+ // skip past the elementary stream descriptors, if present
+ offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+ }
+
+ // record the map on the packet as well
+ pmt.programMapTable = self.programMapTable;
+ };
+
+ /**
+ * Deliver a new MP2T packet to the next stream in the pipeline.
+ */
+ this.push = function (packet) {
+ var result = {},
+ offset = 4;
+
+ result.payloadUnitStartIndicator = !!(packet[1] & 0x40);
+
+ // pid is a 13-bit field starting at the last bit of packet[1]
+ result.pid = packet[1] & 0x1f;
+ result.pid <<= 8;
+ result.pid |= packet[2];
+
+ // if an adaption field is present, its length is specified by the
+ // fifth byte of the TS packet header. The adaptation field is
+ // used to add stuffing to PES packets that don't fill a complete
+ // TS packet, and to specify some forms of timing and control data
+ // that we do not currently use.
+ if ((packet[3] & 0x30) >>> 4 > 0x01) {
+ offset += packet[offset] + 1;
+ }
+
+ // parse the rest of the packet based on the type
+ if (result.pid === 0) {
+ result.type = 'pat';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+ } else if (result.pid === this.pmtPid) {
+ result.type = 'pmt';
+ parsePsi(packet.subarray(offset), result);
+ this.trigger('data', result);
+
+ // if there are any packets waiting for a PMT to be found, process them now
+ while (this.packetsWaitingForPmt.length) {
+ this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+ }
+ } else if (this.programMapTable === undefined) {
+ // When we have not seen a PMT yet, defer further processing of
+ // PES packets until one has been parsed
+ this.packetsWaitingForPmt.push([packet, offset, result]);
+ } else {
+ this.processPes_(packet, offset, result);
+ }
+ };
+
+ this.processPes_ = function (packet, offset, result) {
+ // set the appropriate stream type
+ if (result.pid === this.programMapTable.video) {
+ result.streamType = streamTypes.H264_STREAM_TYPE;
+ } else if (result.pid === this.programMapTable.audio) {
+ result.streamType = streamTypes.ADTS_STREAM_TYPE;
+ } else {
+ // if not video or audio, it is timed-metadata or unknown
+ // if unknown, streamType will be undefined
+ result.streamType = this.programMapTable['timed-metadata'][result.pid];
+ }
+
+ result.type = 'pes';
+ result.data = packet.subarray(offset);
+
+ this.trigger('data', result);
+ };
+ };
+ _TransportParseStream.prototype = new stream();
+ _TransportParseStream.STREAM_TYPES = {
+ h264: 0x1b,
+ adts: 0x0f
+ };
+
+ /**
+ * Reconsistutes program elementary stream (PES) packets from parsed
+ * transport stream packets. That is, if you pipe an
+ * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+ * events will be events which capture the bytes for individual PES
+ * packets plus relevant metadata that has been extracted from the
+ * container.
+ */
+ _ElementaryStream = function ElementaryStream() {
+ var self = this,
+
+
+ // PES packet fragments
+ video = {
+ data: [],
+ size: 0
+ },
+ audio = {
+ data: [],
+ size: 0
+ },
+ timedMetadata = {
+ data: [],
+ size: 0
+ },
+ parsePes = function parsePes(payload, pes) {
+ var ptsDtsFlags;
+
+ // get the packet length, this will be 0 for video
+ pes.packetLength = 6 + (payload[4] << 8 | payload[5]);
+
+ // find out if this packets starts a new keyframe
+ pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0;
+ // PES packets may be annotated with a PTS value, or a PTS value
+ // and a DTS value. Determine what combination of values is
+ // available to work with.
+ ptsDtsFlags = payload[7];
+
+ // PTS and DTS are normally stored as a 33-bit number. Javascript
+ // performs all bitwise operations on 32-bit integers but javascript
+ // supports a much greater range (52-bits) of integer using standard
+ // mathematical operations.
+ // We construct a 31-bit value using bitwise operators over the 31
+ // most significant bits and then multiply by 4 (equal to a left-shift
+ // of 2) before we add the final 2 least significant bits of the
+ // timestamp (equal to an OR.)
+ if (ptsDtsFlags & 0xC0) {
+ // the PTS and DTS are not written out directly. For information
+ // on how they are encoded, see
+ // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+ pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+ pes.pts *= 4; // Left shift by 2
+ pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+ pes.dts = pes.pts;
+ if (ptsDtsFlags & 0x40) {
+ pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+ pes.dts *= 4; // Left shift by 2
+ pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+ }
+ }
+ // the data section starts immediately after the PES header.
+ // pes_header_data_length specifies the number of header bytes
+ // that follow the last byte of the field.
+ pes.data = payload.subarray(9 + payload[8]);
+ },
+
+
+ /**
+ * Pass completely parsed PES packets to the next stream in the pipeline
+ **/
+ flushStream = function flushStream(stream$$1, type, forceFlush) {
+ var packetData = new Uint8Array(stream$$1.size),
+ event = {
+ type: type
+ },
+ i = 0,
+ offset = 0,
+ packetFlushable = false,
+ fragment;
+
+ // do nothing if there is not enough buffered data for a complete
+ // PES header
+ if (!stream$$1.data.length || stream$$1.size < 9) {
+ return;
+ }
+ event.trackId = stream$$1.data[0].pid;
+
+ // reassemble the packet
+ for (i = 0; i < stream$$1.data.length; i++) {
+ fragment = stream$$1.data[i];
+
+ packetData.set(fragment.data, offset);
+ offset += fragment.data.byteLength;
+ }
+
+ // parse assembled packet's PES header
+ parsePes(packetData, event);
+
+ // non-video PES packets MUST have a non-zero PES_packet_length
+ // check that there is enough stream data to fill the packet
+ packetFlushable = type === 'video' || event.packetLength <= stream$$1.size;
+
+ // flush pending packets if the conditions are right
+ if (forceFlush || packetFlushable) {
+ stream$$1.size = 0;
+ stream$$1.data.length = 0;
+ }
+
+ // only emit packets that are complete. this is to avoid assembling
+ // incomplete PES packets due to poor segmentation
+ if (packetFlushable) {
+ self.trigger('data', event);
+ }
+ };
+
+ _ElementaryStream.prototype.init.call(this);
+
+ /**
+ * Identifies M2TS packet types and parses PES packets using metadata
+ * parsed from the PMT
+ **/
+ this.push = function (data) {
+ ({
+ pat: function pat() {
+ // we have to wait for the PMT to arrive as well before we
+ // have any meaningful metadata
+ },
+ pes: function pes() {
+ var stream$$1, streamType;
+
+ switch (data.streamType) {
+ case streamTypes.H264_STREAM_TYPE:
+ case streamTypes.H264_STREAM_TYPE:
+ stream$$1 = video;
+ streamType = 'video';
+ break;
+ case streamTypes.ADTS_STREAM_TYPE:
+ stream$$1 = audio;
+ streamType = 'audio';
+ break;
+ case streamTypes.METADATA_STREAM_TYPE:
+ stream$$1 = timedMetadata;
+ streamType = 'timed-metadata';
+ break;
+ default:
+ // ignore unknown stream types
+ return;
+ }
+
+ // if a new packet is starting, we can flush the completed
+ // packet
+ if (data.payloadUnitStartIndicator) {
+ flushStream(stream$$1, streamType, true);
+ }
+
+ // buffer this fragment until we are sure we've received the
+ // complete payload
+ stream$$1.data.push(data);
+ stream$$1.size += data.data.byteLength;
+ },
+ pmt: function pmt() {
+ var event = {
+ type: 'metadata',
+ tracks: []
+ },
+ programMapTable = data.programMapTable;
+
+ // translate audio and video streams to tracks
+ if (programMapTable.video !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.video,
+ codec: 'avc',
+ type: 'video'
+ });
+ }
+ if (programMapTable.audio !== null) {
+ event.tracks.push({
+ timelineStartInfo: {
+ baseMediaDecodeTime: 0
+ },
+ id: +programMapTable.audio,
+ codec: 'adts',
+ type: 'audio'
+ });
+ }
+
+ self.trigger('data', event);
+ }
+ })[data.type]();
+ };
+
+ /**
+ * Flush any remaining input. Video PES packets may be of variable
+ * length. Normally, the start of a new video packet can trigger the
+ * finalization of the previous packet. That is not possible if no
+ * more video is forthcoming, however. In that case, some other
+ * mechanism (like the end of the file) has to be employed. When it is
+ * clear that no additional data is forthcoming, calling this method
+ * will flush the buffered packets.
+ */
+ this.flush = function () {
+ // !!THIS ORDER IS IMPORTANT!!
+ // video first then audio
+ flushStream(video, 'video');
+ flushStream(audio, 'audio');
+ flushStream(timedMetadata, 'timed-metadata');
+ this.trigger('done');
+ };
+ };
+ _ElementaryStream.prototype = new stream();
+
+ var m2ts = {
+ PAT_PID: 0x0000,
+ MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH,
+ TransportPacketStream: _TransportPacketStream,
+ TransportParseStream: _TransportParseStream,
+ ElementaryStream: _ElementaryStream,
+ TimestampRolloverStream: TimestampRolloverStream$1,
+ CaptionStream: captionStream.CaptionStream,
+ Cea608Stream: captionStream.Cea608Stream,
+ MetadataStream: metadataStream
+ };
+
+ for (var type in streamTypes) {
+ if (streamTypes.hasOwnProperty(type)) {
+ m2ts[type] = streamTypes[type];
+ }
+ }
+
+ var m2ts_1 = m2ts;
+
+ var _AdtsStream;
+
+ var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+
+ /*
+ * Accepts a ElementaryStream and emits data events with parsed
+ * AAC Audio Frames of the individual packets. Input audio in ADTS
+ * format is unpacked and re-emitted as AAC frames.
+ *
+ * @see http://wiki.multimedia.cx/index.php?title=ADTS
+ * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+ */
+ _AdtsStream = function AdtsStream() {
+ var buffer;
+
+ _AdtsStream.prototype.init.call(this);
+
+ this.push = function (packet) {
+ var i = 0,
+ frameNum = 0,
+ frameLength,
+ protectionSkipBytes,
+ frameEnd,
+ oldBuffer,
+ sampleCount,
+ adtsFrameDuration;
+
+ if (packet.type !== 'audio') {
+ // ignore non-audio data
+ return;
+ }
+
+ // Prepend any data in the buffer to the input data so that we can parse
+ // aac frames the cross a PES packet boundary
+ if (buffer) {
+ oldBuffer = buffer;
+ buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+ buffer.set(oldBuffer);
+ buffer.set(packet.data, oldBuffer.byteLength);
+ } else {
+ buffer = packet.data;
+ }
+
+ // unpack any ADTS frames which have been fully received
+ // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+ while (i + 5 < buffer.length) {
+
+ // Loook for the start of an ADTS header..
+ if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+ // If a valid header was not found, jump one forward and attempt to
+ // find a valid ADTS header starting at the next byte
+ i++;
+ continue;
+ }
+
+ // The protection skip bit tells us if we have 2 bytes of CRC data at the
+ // end of the ADTS header
+ protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2;
+
+ // Frame length is a 13 bit integer starting 16 bits from the
+ // end of the sync sequence
+ frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+
+ sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+ adtsFrameDuration = sampleCount * 90000 / ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2];
+
+ frameEnd = i + frameLength;
+
+ // If we don't have enough data to actually finish this ADTS frame, return
+ // and wait for more data
+ if (buffer.byteLength < frameEnd) {
+ return;
+ }
+
+ // Otherwise, deliver the complete AAC frame
+ this.trigger('data', {
+ pts: packet.pts + frameNum * adtsFrameDuration,
+ dts: packet.dts + frameNum * adtsFrameDuration,
+ sampleCount: sampleCount,
+ audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+ channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+ samplerate: ADTS_SAMPLING_FREQUENCIES[(buffer[i + 2] & 0x3c) >>> 2],
+ samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+ // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+ samplesize: 16,
+ data: buffer.subarray(i + 7 + protectionSkipBytes, frameEnd)
+ });
+
+ // If the buffer is empty, clear it and return
+ if (buffer.byteLength === frameEnd) {
+ buffer = undefined;
+ return;
+ }
+
+ frameNum++;
+
+ // Remove the finished frame from the buffer and start the process again
+ buffer = buffer.subarray(frameEnd);
+ }
+ };
+ this.flush = function () {
+ this.trigger('done');
+ };
+ };
+
+ _AdtsStream.prototype = new stream();
+
+ var adts = _AdtsStream;
+
+ var ExpGolomb;
+
+ /**
+ * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+ * scheme used by h264.
+ */
+ ExpGolomb = function ExpGolomb(workingData) {
+ var
+ // the number of bytes left to examine in workingData
+ workingBytesAvailable = workingData.byteLength,
+
+
+ // the current word being examined
+ workingWord = 0,
+
+
+ // :uint
+
+ // the number of bits left to examine in the current word
+ workingBitsAvailable = 0; // :uint;
+
+ // ():uint
+ this.length = function () {
+ return 8 * workingBytesAvailable;
+ };
+
+ // ():uint
+ this.bitsAvailable = function () {
+ return 8 * workingBytesAvailable + workingBitsAvailable;
+ };
+
+ // ():void
+ this.loadWord = function () {
+ var position = workingData.byteLength - workingBytesAvailable,
+ workingBytes = new Uint8Array(4),
+ availableBytes = Math.min(4, workingBytesAvailable);
+
+ if (availableBytes === 0) {
+ throw new Error('no bytes available');
+ }
+
+ workingBytes.set(workingData.subarray(position, position + availableBytes));
+ workingWord = new DataView(workingBytes.buffer).getUint32(0);
+
+ // track the amount of workingData that has been processed
+ workingBitsAvailable = availableBytes * 8;
+ workingBytesAvailable -= availableBytes;
+ };
+
+ // (count:int):void
+ this.skipBits = function (count) {
+ var skipBytes; // :int
+ if (workingBitsAvailable > count) {
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ } else {
+ count -= workingBitsAvailable;
+ skipBytes = Math.floor(count / 8);
+
+ count -= skipBytes * 8;
+ workingBytesAvailable -= skipBytes;
+
+ this.loadWord();
+
+ workingWord <<= count;
+ workingBitsAvailable -= count;
+ }
+ };
+
+ // (size:int):uint
+ this.readBits = function (size) {
+ var bits = Math.min(workingBitsAvailable, size),
+
+
+ // :uint
+ valu = workingWord >>> 32 - bits; // :uint
+ // if size > 31, handle error
+ workingBitsAvailable -= bits;
+ if (workingBitsAvailable > 0) {
+ workingWord <<= bits;
+ } else if (workingBytesAvailable > 0) {
+ this.loadWord();
+ }
+
+ bits = size - bits;
+ if (bits > 0) {
+ return valu << bits | this.readBits(bits);
+ }
+ return valu;
+ };
+
+ // ():uint
+ this.skipLeadingZeros = function () {
+ var leadingZeroCount; // :uint
+ for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+ if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+ // the first bit of working word is 1
+ workingWord <<= leadingZeroCount;
+ workingBitsAvailable -= leadingZeroCount;
+ return leadingZeroCount;
+ }
+ }
+
+ // we exhausted workingWord and still have not found a 1
+ this.loadWord();
+ return leadingZeroCount + this.skipLeadingZeros();
+ };
+
+ // ():void
+ this.skipUnsignedExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():void
+ this.skipExpGolomb = function () {
+ this.skipBits(1 + this.skipLeadingZeros());
+ };
+
+ // ():uint
+ this.readUnsignedExpGolomb = function () {
+ var clz = this.skipLeadingZeros(); // :uint
+ return this.readBits(clz + 1) - 1;
+ };
+
+ // ():int
+ this.readExpGolomb = function () {
+ var valu = this.readUnsignedExpGolomb(); // :int
+ if (0x01 & valu) {
+ // the number is odd if the low order bit is set
+ return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+ }
+ return -1 * (valu >>> 1); // divide by two then make it negative
+ };
+
+ // Some convenience functions
+ // :Boolean
+ this.readBoolean = function () {
+ return this.readBits(1) === 1;
+ };
+
+ // ():int
+ this.readUnsignedByte = function () {
+ return this.readBits(8);
+ };
+
+ this.loadWord();
+ };
+
+ var expGolomb = ExpGolomb;
+
+ var _H264Stream, _NalByteStream;
+ var PROFILES_WITH_OPTIONAL_SPS_DATA;
+
+ /**
+ * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+ */
+ _NalByteStream = function NalByteStream() {
+ var syncPoint = 0,
+ i,
+ buffer;
+ _NalByteStream.prototype.init.call(this);
+
+ /*
+ * Scans a byte stream and triggers a data event with the NAL units found.
+ * @param {Object} data Event received from H264Stream
+ * @param {Uint8Array} data.data The h264 byte stream to be scanned
+ *
+ * @see H264Stream.push
+ */
+ this.push = function (data) {
+ var swapBuffer;
+
+ if (!buffer) {
+ buffer = data.data;
+ } else {
+ swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+ swapBuffer.set(buffer);
+ swapBuffer.set(data.data, buffer.byteLength);
+ buffer = swapBuffer;
+ }
+
+ // Rec. ITU-T H.264, Annex B
+ // scan for NAL unit boundaries
+
+ // a match looks like this:
+ // 0 0 1 .. NAL .. 0 0 1
+ // ^ sync point ^ i
+ // or this:
+ // 0 0 1 .. NAL .. 0 0 0
+ // ^ sync point ^ i
+
+ // advance the sync point to a NAL start, if necessary
+ for (; syncPoint < buffer.byteLength - 3; syncPoint++) {
+ if (buffer[syncPoint + 2] === 1) {
+ // the sync point is properly aligned
+ i = syncPoint + 5;
+ break;
+ }
+ }
+
+ while (i < buffer.byteLength) {
+ // look at the current byte to determine if we've hit the end of
+ // a NAL unit boundary
+ switch (buffer[i]) {
+ case 0:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0) {
+ i += 2;
+ break;
+ } else if (buffer[i - 2] !== 0) {
+ i++;
+ break;
+ }
+
+ // deliver the NAL unit if it isn't empty
+ if (syncPoint + 3 !== i - 2) {
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ }
+
+ // drop trailing zeroes
+ do {
+ i++;
+ } while (buffer[i] !== 1 && i < buffer.length);
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ case 1:
+ // skip past non-sync sequences
+ if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+ i += 3;
+ break;
+ }
+
+ // deliver the NAL unit
+ this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+ syncPoint = i - 2;
+ i += 3;
+ break;
+ default:
+ // the current byte isn't a one or zero, so it cannot be part
+ // of a sync sequence
+ i += 3;
+ break;
+ }
+ }
+ // filter out the NAL units that were delivered
+ buffer = buffer.subarray(syncPoint);
+ i -= syncPoint;
+ syncPoint = 0;
+ };
+
+ this.flush = function () {
+ // deliver the last buffered NAL unit
+ if (buffer && buffer.byteLength > 3) {
+ this.trigger('data', buffer.subarray(syncPoint + 3));
+ }
+ // reset the stream state
+ buffer = null;
+ syncPoint = 0;
+ this.trigger('done');
+ };
+ };
+ _NalByteStream.prototype = new stream();
+
+ // values of profile_idc that indicate additional fields are included in the SPS
+ // see Recommendation ITU-T H.264 (4/2013),
+ // 7.3.2.1.1 Sequence parameter set data syntax
+ PROFILES_WITH_OPTIONAL_SPS_DATA = {
+ 100: true,
+ 110: true,
+ 122: true,
+ 244: true,
+ 44: true,
+ 83: true,
+ 86: true,
+ 118: true,
+ 128: true,
+ 138: true,
+ 139: true,
+ 134: true
+ };
+
+ /**
+ * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+ * events.
+ */
+ _H264Stream = function H264Stream() {
+ var nalByteStream = new _NalByteStream(),
+ self,
+ trackId,
+ currentPts,
+ currentDts,
+ discardEmulationPreventionBytes,
+ readSequenceParameterSet,
+ skipScalingList;
+
+ _H264Stream.prototype.init.call(this);
+ self = this;
+
+ /*
+ * Pushes a packet from a stream onto the NalByteStream
+ *
+ * @param {Object} packet - A packet received from a stream
+ * @param {Uint8Array} packet.data - The raw bytes of the packet
+ * @param {Number} packet.dts - Decode timestamp of the packet
+ * @param {Number} packet.pts - Presentation timestamp of the packet
+ * @param {Number} packet.trackId - The id of the h264 track this packet came from
+ * @param {('video'|'audio')} packet.type - The type of packet
+ *
+ */
+ this.push = function (packet) {
+ if (packet.type !== 'video') {
+ return;
+ }
+ trackId = packet.trackId;
+ currentPts = packet.pts;
+ currentDts = packet.dts;
+
+ nalByteStream.push(packet);
+ };
+
+ /*
+ * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+ * for the NALUs to the next stream component.
+ * Also, preprocess caption and sequence parameter NALUs.
+ *
+ * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+ * @see NalByteStream.push
+ */
+ nalByteStream.on('data', function (data) {
+ var event = {
+ trackId: trackId,
+ pts: currentPts,
+ dts: currentDts,
+ data: data
+ };
+
+ switch (data[0] & 0x1f) {
+ case 0x05:
+ event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+ break;
+ case 0x06:
+ event.nalUnitType = 'sei_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ break;
+ case 0x07:
+ event.nalUnitType = 'seq_parameter_set_rbsp';
+ event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+ event.config = readSequenceParameterSet(event.escapedRBSP);
+ break;
+ case 0x08:
+ event.nalUnitType = 'pic_parameter_set_rbsp';
+ break;
+ case 0x09:
+ event.nalUnitType = 'access_unit_delimiter_rbsp';
+ break;
+
+ default:
+ break;
+ }
+ // This triggers data on the H264Stream
+ self.trigger('data', event);
+ });
+ nalByteStream.on('done', function () {
+ self.trigger('done');
+ });
+
+ this.flush = function () {
+ nalByteStream.flush();
+ };
+
+ /**
+ * Advance the ExpGolomb decoder past a scaling list. The scaling
+ * list is optionally transmitted as part of a sequence parameter
+ * set and is not relevant to transmuxing.
+ * @param count {number} the number of entries in this scaling list
+ * @param expGolombDecoder {object} an ExpGolomb pointed to the
+ * start of a scaling list
+ * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+ */
+ skipScalingList = function skipScalingList(count, expGolombDecoder) {
+ var lastScale = 8,
+ nextScale = 8,
+ j,
+ deltaScale;
+
+ for (j = 0; j < count; j++) {
+ if (nextScale !== 0) {
+ deltaScale = expGolombDecoder.readExpGolomb();
+ nextScale = (lastScale + deltaScale + 256) % 256;
+ }
+
+ lastScale = nextScale === 0 ? lastScale : nextScale;
+ }
+ };
+
+ /**
+ * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+ * Sequence Payload"
+ * @param data {Uint8Array} the bytes of a RBSP from a NAL
+ * unit
+ * @return {Uint8Array} the RBSP without any Emulation
+ * Prevention Bytes
+ */
+ discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
+ var length = data.byteLength,
+ emulationPreventionBytesPositions = [],
+ i = 1,
+ newLength,
+ newData;
+
+ // Find all `Emulation Prevention Bytes`
+ while (i < length - 2) {
+ if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+ emulationPreventionBytesPositions.push(i + 2);
+ i += 2;
+ } else {
+ i++;
+ }
+ }
+
+ // If no Emulation Prevention Bytes were found just return the original
+ // array
+ if (emulationPreventionBytesPositions.length === 0) {
+ return data;
+ }
+
+ // Create a new array to hold the NAL unit data
+ newLength = length - emulationPreventionBytesPositions.length;
+ newData = new Uint8Array(newLength);
+ var sourceIndex = 0;
+
+ for (i = 0; i < newLength; sourceIndex++, i++) {
+ if (sourceIndex === emulationPreventionBytesPositions[0]) {
+ // Skip this byte
+ sourceIndex++;
+ // Remove this position index
+ emulationPreventionBytesPositions.shift();
+ }
+ newData[i] = data[sourceIndex];
+ }
+
+ return newData;
+ };
+
+ /**
+ * Read a sequence parameter set and return some interesting video
+ * properties. A sequence parameter set is the H264 metadata that
+ * describes the properties of upcoming video frames.
+ * @param data {Uint8Array} the bytes of a sequence parameter set
+ * @return {object} an object with configuration parsed from the
+ * sequence parameter set, including the dimensions of the
+ * associated video frames.
+ */
+ readSequenceParameterSet = function readSequenceParameterSet(data) {
+ var frameCropLeftOffset = 0,
+ frameCropRightOffset = 0,
+ frameCropTopOffset = 0,
+ frameCropBottomOffset = 0,
+ sarScale = 1,
+ expGolombDecoder,
+ profileIdc,
+ levelIdc,
+ profileCompatibility,
+ chromaFormatIdc,
+ picOrderCntType,
+ numRefFramesInPicOrderCntCycle,
+ picWidthInMbsMinus1,
+ picHeightInMapUnitsMinus1,
+ frameMbsOnlyFlag,
+ scalingListCount,
+ sarRatio,
+ aspectRatioIdc,
+ i;
+
+ expGolombDecoder = new expGolomb(data);
+ profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+ profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+ levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+ expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+
+ // some profiles have more optional data we don't need
+ if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+ chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+ if (chromaFormatIdc === 3) {
+ expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+ }
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+ expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+ expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_matrix_present_flag
+ scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+ for (i = 0; i < scalingListCount; i++) {
+ if (expGolombDecoder.readBoolean()) {
+ // seq_scaling_list_present_flag[ i ]
+ if (i < 6) {
+ skipScalingList(16, expGolombDecoder);
+ } else {
+ skipScalingList(64, expGolombDecoder);
+ }
+ }
+ }
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+ picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+
+ if (picOrderCntType === 0) {
+ expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+ } else if (picOrderCntType === 1) {
+ expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+ expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+ expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+ numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+ for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+ expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+ }
+ }
+
+ expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+ expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+ picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+ picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+
+ frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+ if (frameMbsOnlyFlag === 0) {
+ expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+ }
+
+ expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+ if (expGolombDecoder.readBoolean()) {
+ // frame_cropping_flag
+ frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+ frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+ }
+ if (expGolombDecoder.readBoolean()) {
+ // vui_parameters_present_flag
+ if (expGolombDecoder.readBoolean()) {
+ // aspect_ratio_info_present_flag
+ aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+ switch (aspectRatioIdc) {
+ case 1:
+ sarRatio = [1, 1];break;
+ case 2:
+ sarRatio = [12, 11];break;
+ case 3:
+ sarRatio = [10, 11];break;
+ case 4:
+ sarRatio = [16, 11];break;
+ case 5:
+ sarRatio = [40, 33];break;
+ case 6:
+ sarRatio = [24, 11];break;
+ case 7:
+ sarRatio = [20, 11];break;
+ case 8:
+ sarRatio = [32, 11];break;
+ case 9:
+ sarRatio = [80, 33];break;
+ case 10:
+ sarRatio = [18, 11];break;
+ case 11:
+ sarRatio = [15, 11];break;
+ case 12:
+ sarRatio = [64, 33];break;
+ case 13:
+ sarRatio = [160, 99];break;
+ case 14:
+ sarRatio = [4, 3];break;
+ case 15:
+ sarRatio = [3, 2];break;
+ case 16:
+ sarRatio = [2, 1];break;
+ case 255:
+ {
+ sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+ break;
+ }
+ }
+ if (sarRatio) {
+ sarScale = sarRatio[0] / sarRatio[1];
+ }
+ }
+ }
+ return {
+ profileIdc: profileIdc,
+ levelIdc: levelIdc,
+ profileCompatibility: profileCompatibility,
+ width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale),
+ height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
+ };
+ };
+ };
+ _H264Stream.prototype = new stream();
+
+ var h264 = {
+ H264Stream: _H264Stream,
+ NalByteStream: _NalByteStream
+ };
+
+ // Constants
+ var _AacStream;
+
+ /**
+ * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+ */
+
+ _AacStream = function AacStream() {
+ var everything = new Uint8Array(),
+ timeStamp = 0;
+
+ _AacStream.prototype.init.call(this);
+
+ this.setTimestamp = function (timestamp) {
+ timeStamp = timestamp;
+ };
+
+ this.parseId3TagSize = function (header, byteIndex) {
+ var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+ flags = header[byteIndex + 5],
+ footerPresent = (flags & 16) >> 4;
+
+ if (footerPresent) {
+ return returnSize + 20;
+ }
+ return returnSize + 10;
+ };
+
+ this.parseAdtsSize = function (header, byteIndex) {
+ var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+ middle = header[byteIndex + 4] << 3,
+ highTwo = header[byteIndex + 3] & 0x3 << 11;
+
+ return highTwo | middle | lowThree;
+ };
+
+ this.push = function (bytes) {
+ var frameSize = 0,
+ byteIndex = 0,
+ bytesLeft,
+ chunk,
+ packet,
+ tempLength;
+
+ // If there are bytes remaining from the last segment, prepend them to the
+ // bytes that were pushed in
+ if (everything.length) {
+ tempLength = everything.length;
+ everything = new Uint8Array(bytes.byteLength + tempLength);
+ everything.set(everything.subarray(0, tempLength));
+ everything.set(bytes, tempLength);
+ } else {
+ everything = bytes;
+ }
+
+ while (everything.length - byteIndex >= 3) {
+ if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+
+ // Exit early because we don't have enough to parse
+ // the ID3 tag header
+ if (everything.length - byteIndex < 10) {
+ break;
+ }
+
+ // check framesize
+ frameSize = this.parseId3TagSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+ chunk = {
+ type: 'timed-metadata',
+ data: everything.subarray(byteIndex, byteIndex + frameSize)
+ };
+ this.trigger('data', chunk);
+ byteIndex += frameSize;
+ continue;
+ } else if (everything[byteIndex] & 0xff === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+
+ // Exit early because we don't have enough to parse
+ // the ADTS frame header
+ if (everything.length - byteIndex < 7) {
+ break;
+ }
+
+ frameSize = this.parseAdtsSize(everything, byteIndex);
+
+ // Exit early if we don't have enough in the buffer
+ // to emit a full packet
+ if (frameSize > everything.length) {
+ break;
+ }
+
+ packet = {
+ type: 'audio',
+ data: everything.subarray(byteIndex, byteIndex + frameSize),
+ pts: timeStamp,
+ dts: timeStamp
+ };
+ this.trigger('data', packet);
+ byteIndex += frameSize;
+ continue;
+ }
+ byteIndex++;
+ }
+ bytesLeft = everything.length - byteIndex;
+
+ if (bytesLeft > 0) {
+ everything = everything.subarray(byteIndex);
+ } else {
+ everything = new Uint8Array();
+ }
+ };
+ };
+
+ _AacStream.prototype = new stream();
+
+ var aac = _AacStream;
+
+ var highPrefix = [33, 16, 5, 32, 164, 27];
+ var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+ var zeroFill = function zeroFill(count) {
+ var a = [];
+ while (count--) {
+ a.push(0);
+ }
+ return a;
+ };
+
+ var makeTable = function makeTable(metaTable) {
+ return Object.keys(metaTable).reduce(function (obj, key) {
+ obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+ return arr.concat(part);
+ }, []));
+ return obj;
+ }, {});
+ };
+
+ // Frames-of-silence to use for filling in missing AAC frames
+ var coneOfSilence = {
+ 96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+ 88200: [highPrefix, [231], zeroFill(170), [56]],
+ 64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+ 48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+ 44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+ 32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+ 24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+ 16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+ 12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+ 11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+ 8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+ };
+
+ var silence = makeTable(coneOfSilence);
+
+ var ONE_SECOND_IN_TS$1 = 90000,
+
+
+ // 90kHz clock
+ secondsToVideoTs,
+ secondsToAudioTs,
+ videoTsToSeconds,
+ audioTsToSeconds,
+ audioTsToVideoTs,
+ videoTsToAudioTs;
+
+ secondsToVideoTs = function secondsToVideoTs(seconds) {
+ return seconds * ONE_SECOND_IN_TS$1;
+ };
+
+ secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
+ return seconds * sampleRate;
+ };
+
+ videoTsToSeconds = function videoTsToSeconds(timestamp) {
+ return timestamp / ONE_SECOND_IN_TS$1;
+ };
+
+ audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
+ return timestamp / sampleRate;
+ };
+
+ audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
+ return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+ };
+
+ videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
+ return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+ };
+
+ var clock = {
+ secondsToVideoTs: secondsToVideoTs,
+ secondsToAudioTs: secondsToAudioTs,
+ videoTsToSeconds: videoTsToSeconds,
+ audioTsToSeconds: audioTsToSeconds,
+ audioTsToVideoTs: audioTsToVideoTs,
+ videoTsToAudioTs: videoTsToAudioTs
+ };
+
+ var H264Stream = h264.H264Stream;
+
+ // constants
+ var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+
+ var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility'];
+
+ var ONE_SECOND_IN_TS$2 = 90000; // 90kHz clock
+
+ // object types
+ var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
+
+ // Helper functions
+ var isLikelyAacData, arrayEquals, sumFrameByteLengths;
+
+ isLikelyAacData = function isLikelyAacData(data) {
+ if (data[0] === 'I'.charCodeAt(0) && data[1] === 'D'.charCodeAt(0) && data[2] === '3'.charCodeAt(0)) {
+ return true;
+ }
+ return false;
+ };
+
+ /**
+ * Compare two arrays (even typed) for same-ness
+ */
+ arrayEquals = function arrayEquals(a, b) {
+ var i;
+
+ if (a.length !== b.length) {
+ return false;
+ }
+
+ // compare the value of each element in the array
+ for (i = 0; i < a.length; i++) {
+ if (a[i] !== b[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ /**
+ * Sum the `byteLength` properties of the data in each AAC frame
+ */
+ sumFrameByteLengths = function sumFrameByteLengths(array) {
+ var i,
+ currentObj,
+ sum = 0;
+
+ // sum the byteLength's all each nal unit in the frame
+ for (i = 0; i < array.length; i++) {
+ currentObj = array[i];
+ sum += currentObj.data.byteLength;
+ }
+
+ return sum;
+ };
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from AAC data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _AudioSegmentStream = function AudioSegmentStream(track, options) {
+ var adtsFrames = [],
+ sequenceNumber = 0,
+ earliestAllowedDts = 0,
+ audioAppendStartTs = 0,
+ videoBaseMediaDecodeTime = Infinity;
+
+ options = options || {};
+
+ _AudioSegmentStream.prototype.init.call(this);
+
+ this.push = function (data) {
+ trackDecodeInfo.collectDtsInfo(track, data);
+
+ if (track) {
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ track[prop] = data[prop];
+ });
+ }
+
+ // buffer audio data until end() is called
+ adtsFrames.push(data);
+ };
+
+ this.setEarliestDts = function (earliestDts) {
+ earliestAllowedDts = earliestDts - track.timelineStartInfo.baseMediaDecodeTime;
+ };
+
+ this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ videoBaseMediaDecodeTime = baseMediaDecodeTime;
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ audioAppendStartTs = timestamp;
+ };
+
+ this.flush = function () {
+ var frames, moof, mdat, boxes;
+
+ // return early if no audio data has been observed
+ if (adtsFrames.length === 0) {
+ this.trigger('done', 'AudioSegmentStream');
+ return;
+ }
+
+ frames = this.trimAdtsFramesByEarliestDts_(adtsFrames);
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.prefixWithSilence_(track, frames);
+
+ // we have to build the index from byte locations to
+ // samples (that is, adts frames) in the audio data
+ track.samples = this.generateSampleTable_(frames);
+
+ // concatenate the audio data to constuct the mdat
+ mdat = mp4Generator.mdat(this.concatenateFrameData_(frames));
+
+ adtsFrames = [];
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ trackDecodeInfo.clearDtsInfo(track);
+
+ this.trigger('data', { track: track, boxes: boxes });
+ this.trigger('done', 'AudioSegmentStream');
+ };
+
+ // Possibly pad (prefix) the audio track with silence if appending this track
+ // would lead to the introduction of a gap in the audio buffer
+ this.prefixWithSilence_ = function (track, frames) {
+ var baseMediaDecodeTimeTs,
+ frameDuration = 0,
+ audioGapDuration = 0,
+ audioFillFrameCount = 0,
+ audioFillDuration = 0,
+ silentFrame,
+ i;
+
+ if (!frames.length) {
+ return;
+ }
+
+ baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate);
+ // determine frame clock duration based on sample rate, round up to avoid overfills
+ frameDuration = Math.ceil(ONE_SECOND_IN_TS$2 / (track.samplerate / 1024));
+
+ if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+ // insert the shortest possible amount (audio gap or audio to video gap)
+ audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime);
+ // number of full frames in the audio gap
+ audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+ audioFillDuration = audioFillFrameCount * frameDuration;
+ }
+
+ // don't attempt to fill gaps smaller than a single frame or larger
+ // than a half second
+ if (audioFillFrameCount < 1 || audioFillDuration > ONE_SECOND_IN_TS$2 / 2) {
+ return;
+ }
+
+ silentFrame = silence[track.samplerate];
+
+ if (!silentFrame) {
+ // we don't have a silent frame pregenerated for the sample rate, so use a frame
+ // from the content instead
+ silentFrame = frames[0].data;
+ }
+
+ for (i = 0; i < audioFillFrameCount; i++) {
+ frames.splice(i, 0, {
+ data: silentFrame
+ });
+ }
+
+ track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
+ };
+
+ // If the audio segment extends before the earliest allowed dts
+ // value, remove AAC frames until starts at or after the earliest
+ // allowed DTS so that we don't end up with a negative baseMedia-
+ // DecodeTime for the audio track
+ this.trimAdtsFramesByEarliestDts_ = function (adtsFrames) {
+ if (track.minSegmentDts >= earliestAllowedDts) {
+ return adtsFrames;
+ }
+
+ // We will need to recalculate the earliest segment Dts
+ track.minSegmentDts = Infinity;
+
+ return adtsFrames.filter(function (currentFrame) {
+ // If this is an allowed frame, keep it and record it's Dts
+ if (currentFrame.dts >= earliestAllowedDts) {
+ track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+ track.minSegmentPts = track.minSegmentDts;
+ return true;
+ }
+ // Otherwise, discard it
+ return false;
+ });
+ };
+
+ // generate the track's raw mdat data from an array of frames
+ this.generateSampleTable_ = function (frames) {
+ var i,
+ currentFrame,
+ samples = [];
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+ samples.push({
+ size: currentFrame.data.byteLength,
+ duration: 1024 // For AAC audio, all samples contain 1024 samples
+ });
+ }
+ return samples;
+ };
+
+ // generate the track's sample table from an array of frames
+ this.concatenateFrameData_ = function (frames) {
+ var i,
+ currentFrame,
+ dataOffset = 0,
+ data = new Uint8Array(sumFrameByteLengths(frames));
+
+ for (i = 0; i < frames.length; i++) {
+ currentFrame = frames[i];
+
+ data.set(currentFrame.data, dataOffset);
+ dataOffset += currentFrame.data.byteLength;
+ }
+ return data;
+ };
+ };
+
+ _AudioSegmentStream.prototype = new stream();
+
+ /**
+ * Constructs a single-track, ISO BMFF media segment from H264 data
+ * events. The output of this stream can be fed to a SourceBuffer
+ * configured with a suitable initialization segment.
+ * @param track {object} track metadata configuration
+ * @param options {object} transmuxer options object
+ * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+ * gopsToAlignWith list when attempting to align gop pts
+ * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+ * in the source; false to adjust the first segment to start at 0.
+ */
+ _VideoSegmentStream = function VideoSegmentStream(track, options) {
+ var sequenceNumber = 0,
+ nalUnits = [],
+ gopsToAlignWith = [],
+ config,
+ pps;
+
+ options = options || {};
+
+ _VideoSegmentStream.prototype.init.call(this);
+
+ delete track.minPTS;
+
+ this.gopCache_ = [];
+
+ /**
+ * Constructs a ISO BMFF segment given H264 nalUnits
+ * @param {Object} nalUnit A data event representing a nalUnit
+ * @param {String} nalUnit.nalUnitType
+ * @param {Object} nalUnit.config Properties for a mp4 track
+ * @param {Uint8Array} nalUnit.data The nalUnit bytes
+ * @see lib/codecs/h264.js
+ **/
+ this.push = function (nalUnit) {
+ trackDecodeInfo.collectDtsInfo(track, nalUnit);
+
+ // record the track config
+ if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+ config = nalUnit.config;
+ track.sps = [nalUnit.data];
+
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ track[prop] = config[prop];
+ }, this);
+ }
+
+ if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+ pps = nalUnit.data;
+ track.pps = [nalUnit.data];
+ }
+
+ // buffer video until flush() is called
+ nalUnits.push(nalUnit);
+ };
+
+ /**
+ * Pass constructed ISO BMFF track and boxes on to the
+ * next stream in the pipeline
+ **/
+ this.flush = function () {
+ var frames, gopForFusion, gops, moof, mdat, boxes;
+
+ // Throw away nalUnits at the start of the byte stream until
+ // we find the first AUD
+ while (nalUnits.length) {
+ if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+ break;
+ }
+ nalUnits.shift();
+ }
+
+ // Return early if no video data has been observed
+ if (nalUnits.length === 0) {
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Organize the raw nal-units into arrays that represent
+ // higher-level constructs such as frames and gops
+ // (group-of-pictures)
+ frames = frameUtils.groupNalsIntoFrames(nalUnits);
+ gops = frameUtils.groupFramesIntoGops(frames);
+
+ // If the first frame of this fragment is not a keyframe we have
+ // a problem since MSE (on Chrome) requires a leading keyframe.
+ //
+ // We have two approaches to repairing this situation:
+ // 1) GOP-FUSION:
+ // This is where we keep track of the GOPS (group-of-pictures)
+ // from previous fragments and attempt to find one that we can
+ // prepend to the current fragment in order to create a valid
+ // fragment.
+ // 2) KEYFRAME-PULLING:
+ // Here we search for the first keyframe in the fragment and
+ // throw away all the frames between the start of the fragment
+ // and that keyframe. We then extend the duration and pull the
+ // PTS of the keyframe forward so that it covers the time range
+ // of the frames that were disposed of.
+ //
+ // #1 is far prefereable over #2 which can cause "stuttering" but
+ // requires more things to be just right.
+ if (!gops[0][0].keyFrame) {
+ // Search for a gop for fusion from our gopCache
+ gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+
+ if (gopForFusion) {
+ gops.unshift(gopForFusion);
+ // Adjust Gops' metadata to account for the inclusion of the
+ // new gop at the beginning
+ gops.byteLength += gopForFusion.byteLength;
+ gops.nalCount += gopForFusion.nalCount;
+ gops.pts = gopForFusion.pts;
+ gops.dts = gopForFusion.dts;
+ gops.duration += gopForFusion.duration;
+ } else {
+ // If we didn't find a candidate gop fall back to keyframe-pulling
+ gops = frameUtils.extendFirstKeyFrame(gops);
+ }
+ }
+
+ // Trim gops to align with gopsToAlignWith
+ if (gopsToAlignWith.length) {
+ var alignedGops;
+
+ if (options.alignGopsAtEnd) {
+ alignedGops = this.alignGopsAtEnd_(gops);
+ } else {
+ alignedGops = this.alignGopsAtStart_(gops);
+ }
+
+ if (!alignedGops) {
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ // return early no gops can be aligned with desired gopsToAlignWith
+ this.resetStream_();
+ this.trigger('done', 'VideoSegmentStream');
+ return;
+ }
+
+ // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+ // when recalculated before sending off to CoalesceStream
+ trackDecodeInfo.clearDtsInfo(track);
+
+ gops = alignedGops;
+ }
+
+ trackDecodeInfo.collectDtsInfo(track, gops);
+
+ // First, we have to build the index from byte locations to
+ // samples (that is, frames) in the video data
+ track.samples = frameUtils.generateSampleTable(gops);
+
+ // Concatenate the video data and construct the mdat
+ mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
+
+ track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+
+ this.trigger('processedGopsInfo', gops.map(function (gop) {
+ return {
+ pts: gop.pts,
+ dts: gop.dts,
+ byteLength: gop.byteLength
+ };
+ }));
+
+ // save all the nals in the last GOP into the gop cache
+ this.gopCache_.unshift({
+ gop: gops.pop(),
+ pps: track.pps,
+ sps: track.sps
+ });
+
+ // Keep a maximum of 6 GOPs in the cache
+ this.gopCache_.length = Math.min(6, this.gopCache_.length);
+
+ // Clear nalUnits
+ nalUnits = [];
+
+ this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+ this.trigger('timelineStartInfo', track.timelineStartInfo);
+
+ moof = mp4Generator.moof(sequenceNumber, [track]);
+
+ // it would be great to allocate this array up front instead of
+ // throwing away hundreds of media segment fragments
+ boxes = new Uint8Array(moof.byteLength + mdat.byteLength);
+
+ // Bump the sequence number for next time
+ sequenceNumber++;
+
+ boxes.set(moof);
+ boxes.set(mdat, moof.byteLength);
+
+ this.trigger('data', { track: track, boxes: boxes });
+
+ this.resetStream_();
+
+ // Continue with the flush process now
+ this.trigger('done', 'VideoSegmentStream');
+ };
+
+ this.resetStream_ = function () {
+ trackDecodeInfo.clearDtsInfo(track);
+
+ // reset config and pps because they may differ across segments
+ // for instance, when we are rendition switching
+ config = undefined;
+ pps = undefined;
+ };
+
+ // Search for a candidate Gop for gop-fusion from the gop cache and
+ // return it or return null if no good candidate was found
+ this.getGopForFusion_ = function (nalUnit) {
+ var halfSecond = 45000,
+
+
+ // Half-a-second in a 90khz clock
+ allowableOverlap = 10000,
+
+
+ // About 3 frames @ 30fps
+ nearestDistance = Infinity,
+ dtsDistance,
+ nearestGopObj,
+ currentGop,
+ currentGopObj,
+ i;
+
+ // Search for the GOP nearest to the beginning of this nal unit
+ for (i = 0; i < this.gopCache_.length; i++) {
+ currentGopObj = this.gopCache_[i];
+ currentGop = currentGopObj.gop;
+
+ // Reject Gops with different SPS or PPS
+ if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+ continue;
+ }
+
+ // Reject Gops that would require a negative baseMediaDecodeTime
+ if (currentGop.dts < track.timelineStartInfo.dts) {
+ continue;
+ }
+
+ // The distance between the end of the gop and the start of the nalUnit
+ dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration;
+
+ // Only consider GOPS that start before the nal unit and end within
+ // a half-second of the nal unit
+ if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+
+ // Always use the closest GOP we found if there is more than
+ // one candidate
+ if (!nearestGopObj || nearestDistance > dtsDistance) {
+ nearestGopObj = currentGopObj;
+ nearestDistance = dtsDistance;
+ }
+ }
+ }
+
+ if (nearestGopObj) {
+ return nearestGopObj.gop;
+ }
+ return null;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the START of the list
+ this.alignGopsAtStart_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+
+ byteLength = gops.byteLength;
+ nalCount = gops.nalCount;
+ duration = gops.duration;
+ alignIndex = gopIndex = 0;
+
+ while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ break;
+ }
+
+ if (gop.pts > align.pts) {
+ // this current gop starts after the current gop we want to align on, so increment
+ // align index
+ alignIndex++;
+ continue;
+ }
+
+ // current gop starts before the current gop we want to align on. so increment gop
+ // index
+ gopIndex++;
+ byteLength -= gop.byteLength;
+ nalCount -= gop.nalCount;
+ duration -= gop.duration;
+ }
+
+ if (gopIndex === 0) {
+ // no gops to trim
+ return gops;
+ }
+
+ if (gopIndex === gops.length) {
+ // all gops trimmed, skip appending all gops
+ return null;
+ }
+
+ alignedGops = gops.slice(gopIndex);
+ alignedGops.byteLength = byteLength;
+ alignedGops.duration = duration;
+ alignedGops.nalCount = nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ // trim gop list to the first gop found that has a matching pts with a gop in the list
+ // of gopsToAlignWith starting from the END of the list
+ this.alignGopsAtEnd_ = function (gops) {
+ var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+
+ alignIndex = gopsToAlignWith.length - 1;
+ gopIndex = gops.length - 1;
+ alignEndIndex = null;
+ matchFound = false;
+
+ while (alignIndex >= 0 && gopIndex >= 0) {
+ align = gopsToAlignWith[alignIndex];
+ gop = gops[gopIndex];
+
+ if (align.pts === gop.pts) {
+ matchFound = true;
+ break;
+ }
+
+ if (align.pts > gop.pts) {
+ alignIndex--;
+ continue;
+ }
+
+ if (alignIndex === gopsToAlignWith.length - 1) {
+ // gop.pts is greater than the last alignment candidate. If no match is found
+ // by the end of this loop, we still want to append gops that come after this
+ // point
+ alignEndIndex = gopIndex;
+ }
+
+ gopIndex--;
+ }
+
+ if (!matchFound && alignEndIndex === null) {
+ return null;
+ }
+
+ var trimIndex;
+
+ if (matchFound) {
+ trimIndex = gopIndex;
+ } else {
+ trimIndex = alignEndIndex;
+ }
+
+ if (trimIndex === 0) {
+ return gops;
+ }
+
+ var alignedGops = gops.slice(trimIndex);
+ var metadata = alignedGops.reduce(function (total, gop) {
+ total.byteLength += gop.byteLength;
+ total.duration += gop.duration;
+ total.nalCount += gop.nalCount;
+ return total;
+ }, { byteLength: 0, duration: 0, nalCount: 0 });
+
+ alignedGops.byteLength = metadata.byteLength;
+ alignedGops.duration = metadata.duration;
+ alignedGops.nalCount = metadata.nalCount;
+ alignedGops.pts = alignedGops[0].pts;
+ alignedGops.dts = alignedGops[0].dts;
+
+ return alignedGops;
+ };
+
+ this.alignGopsWith = function (newGopsToAlignWith) {
+ gopsToAlignWith = newGopsToAlignWith;
+ };
+ };
+
+ _VideoSegmentStream.prototype = new stream();
+
+ /**
+ * A Stream that can combine multiple streams (ie. audio & video)
+ * into a single output segment for MSE. Also supports audio-only
+ * and video-only streams.
+ */
+ _CoalesceStream = function CoalesceStream(options, metadataStream) {
+ // Number of Tracks per output segment
+ // If greater than 1, we combine multiple
+ // tracks into a single segment
+ this.numberOfTracks = 0;
+ this.metadataStream = metadataStream;
+
+ if (typeof options.remux !== 'undefined') {
+ this.remuxTracks = !!options.remux;
+ } else {
+ this.remuxTracks = true;
+ }
+
+ this.pendingTracks = [];
+ this.videoTrack = null;
+ this.pendingBoxes = [];
+ this.pendingCaptions = [];
+ this.pendingMetadata = [];
+ this.pendingBytes = 0;
+ this.emittedTracks = 0;
+
+ _CoalesceStream.prototype.init.call(this);
+
+ // Take output from multiple
+ this.push = function (output) {
+ // buffer incoming captions until the associated video segment
+ // finishes
+ if (output.text) {
+ return this.pendingCaptions.push(output);
+ }
+ // buffer incoming id3 tags until the final flush
+ if (output.frames) {
+ return this.pendingMetadata.push(output);
+ }
+
+ // Add this track to the list of pending tracks and store
+ // important information required for the construction of
+ // the final segment
+ this.pendingTracks.push(output.track);
+ this.pendingBoxes.push(output.boxes);
+ this.pendingBytes += output.boxes.byteLength;
+
+ if (output.track.type === 'video') {
+ this.videoTrack = output.track;
+ }
+ if (output.track.type === 'audio') {
+ this.audioTrack = output.track;
+ }
+ };
+ };
+
+ _CoalesceStream.prototype = new stream();
+ _CoalesceStream.prototype.flush = function (flushSource) {
+ var offset = 0,
+ event = {
+ captions: [],
+ captionStreams: {},
+ metadata: [],
+ info: {}
+ },
+ caption,
+ id3,
+ initSegment,
+ timelineStartPts = 0,
+ i;
+
+ if (this.pendingTracks.length < this.numberOfTracks) {
+ if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+ // Return because we haven't received a flush from a data-generating
+ // portion of the segment (meaning that we have only recieved meta-data
+ // or captions.)
+ return;
+ } else if (this.remuxTracks) {
+ // Return until we have enough tracks from the pipeline to remux (if we
+ // are remuxing audio and video into a single MP4)
+ return;
+ } else if (this.pendingTracks.length === 0) {
+ // In the case where we receive a flush without any data having been
+ // received we consider it an emitted track for the purposes of coalescing
+ // `done` events.
+ // We do this for the case where there is an audio and video track in the
+ // segment but no audio data. (seen in several playlists with alternate
+ // audio tracks and no audio present in the main TS segments.)
+ this.emittedTracks++;
+
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ return;
+ }
+ }
+
+ if (this.videoTrack) {
+ timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+ VIDEO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.videoTrack[prop];
+ }, this);
+ } else if (this.audioTrack) {
+ timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+ AUDIO_PROPERTIES.forEach(function (prop) {
+ event.info[prop] = this.audioTrack[prop];
+ }, this);
+ }
+
+ if (this.pendingTracks.length === 1) {
+ event.type = this.pendingTracks[0].type;
+ } else {
+ event.type = 'combined';
+ }
+
+ this.emittedTracks += this.pendingTracks.length;
+
+ initSegment = mp4Generator.initSegment(this.pendingTracks);
+
+ // Create a new typed array to hold the init segment
+ event.initSegment = new Uint8Array(initSegment.byteLength);
+
+ // Create an init segment containing a moov
+ // and track definitions
+ event.initSegment.set(initSegment);
+
+ // Create a new typed array to hold the moof+mdats
+ event.data = new Uint8Array(this.pendingBytes);
+
+ // Append each moof+mdat (one per track) together
+ for (i = 0; i < this.pendingBoxes.length; i++) {
+ event.data.set(this.pendingBoxes[i], offset);
+ offset += this.pendingBoxes[i].byteLength;
+ }
+
+ // Translate caption PTS times into second offsets into the
+ // video timeline for the segment, and add track info
+ for (i = 0; i < this.pendingCaptions.length; i++) {
+ caption = this.pendingCaptions[i];
+ caption.startTime = caption.startPts - timelineStartPts;
+ caption.startTime /= 90e3;
+ caption.endTime = caption.endPts - timelineStartPts;
+ caption.endTime /= 90e3;
+ event.captionStreams[caption.stream] = true;
+ event.captions.push(caption);
+ }
+
+ // Translate ID3 frame PTS times into second offsets into the
+ // video timeline for the segment
+ for (i = 0; i < this.pendingMetadata.length; i++) {
+ id3 = this.pendingMetadata[i];
+ id3.cueTime = id3.pts - timelineStartPts;
+ id3.cueTime /= 90e3;
+ event.metadata.push(id3);
+ }
+ // We add this to every single emitted segment even though we only need
+ // it for the first
+ event.metadata.dispatchType = this.metadataStream.dispatchType;
+
+ // Reset stream state
+ this.pendingTracks.length = 0;
+ this.videoTrack = null;
+ this.pendingBoxes.length = 0;
+ this.pendingCaptions.length = 0;
+ this.pendingBytes = 0;
+ this.pendingMetadata.length = 0;
+
+ // Emit the built segment
+ this.trigger('data', event);
+
+ // Only emit `done` if all tracks have been flushed and emitted
+ if (this.emittedTracks >= this.numberOfTracks) {
+ this.trigger('done');
+ this.emittedTracks = 0;
+ }
+ };
+ /**
+ * A Stream that expects MP2T binary data as input and produces
+ * corresponding media segments, suitable for use with Media Source
+ * Extension (MSE) implementations that support the ISO BMFF byte
+ * stream format, like Chrome.
+ */
+ _Transmuxer = function Transmuxer(options) {
+ var self = this,
+ hasFlushed = true,
+ videoTrack,
+ audioTrack;
+
+ _Transmuxer.prototype.init.call(this);
+
+ options = options || {};
+ this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+ this.transmuxPipeline_ = {};
+
+ this.setupAacPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'aac';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.aacStream = new aac();
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.aacStream;
+
+ pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+ pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ pipeline.metadataStream.on('timestamp', function (frame) {
+ pipeline.aacStream.setTimestamp(frame.timeStamp);
+ });
+
+ pipeline.aacStream.on('data', function (data) {
+ if (data.type === 'timed-metadata' && !pipeline.audioSegmentStream) {
+ audioTrack = audioTrack || {
+ timelineStartInfo: {
+ baseMediaDecodeTime: self.baseMediaDecodeTime
+ },
+ codec: 'adts',
+ type: 'audio'
+ };
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ this.setupTsPipeline = function () {
+ var pipeline = {};
+ this.transmuxPipeline_ = pipeline;
+
+ pipeline.type = 'ts';
+ pipeline.metadataStream = new m2ts_1.MetadataStream();
+
+ // set up the parsing pipeline
+ pipeline.packetStream = new m2ts_1.TransportPacketStream();
+ pipeline.parseStream = new m2ts_1.TransportParseStream();
+ pipeline.elementaryStream = new m2ts_1.ElementaryStream();
+ pipeline.videoTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('video');
+ pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
+ pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
+ pipeline.adtsStream = new adts();
+ pipeline.h264Stream = new H264Stream();
+ pipeline.captionStream = new m2ts_1.CaptionStream();
+ pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
+ pipeline.headOfPipeline = pipeline.packetStream;
+
+ // disassemble MPEG2-TS packets into elementary streams
+ pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream);
+
+ // !!THIS ORDER IS IMPORTANT!!
+ // demux the streams
+ pipeline.elementaryStream.pipe(pipeline.videoTimestampRolloverStream).pipe(pipeline.h264Stream);
+ pipeline.elementaryStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+
+ pipeline.elementaryStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+
+ // Hook up CEA-608/708 caption stream
+ pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+
+ pipeline.elementaryStream.on('data', function (data) {
+ var i;
+
+ if (data.type === 'metadata') {
+ i = data.tracks.length;
+
+ // scan the tracks listed in the metadata
+ while (i--) {
+ if (!videoTrack && data.tracks[i].type === 'video') {
+ videoTrack = data.tracks[i];
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ } else if (!audioTrack && data.tracks[i].type === 'audio') {
+ audioTrack = data.tracks[i];
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+ }
+ }
+
+ // hook up the video segment stream to the first track with h264 data
+ if (videoTrack && !pipeline.videoSegmentStream) {
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
+
+ pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+ // When video emits timelineStartInfo data after a flush, we forward that
+ // info to the AudioSegmentStream, if it exists, because video timeline
+ // data takes precedence.
+ if (audioTrack) {
+ audioTrack.timelineStartInfo = timelineStartInfo;
+ // On the first segment we trim AAC frames that exist before the
+ // very earliest DTS we have seen in video because Chrome will
+ // interpret any video track with a baseMediaDecodeTime that is
+ // non-zero as a gap.
+ pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts);
+ }
+ });
+
+ pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+
+ pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+ if (audioTrack) {
+ pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+ }
+ });
+
+ // Set up the final part of the video pipeline
+ pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+ }
+
+ if (audioTrack && !pipeline.audioSegmentStream) {
+ // hook up the audio segment stream to the first track with aac data
+ pipeline.coalesceStream.numberOfTracks++;
+ pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
+
+ // Set up the final part of the audio pipeline
+ pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+ }
+ }
+ });
+
+ // Re-emit any data coming from the coalesce stream to the outside world
+ pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+ // Let the consumer know we have finished flushing the entire pipeline
+ pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+ };
+
+ // hook up the segment streams once track metadata is delivered
+ this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+ var pipeline = this.transmuxPipeline_;
+
+ this.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (audioTrack) {
+ audioTrack.timelineStartInfo.dts = undefined;
+ audioTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(audioTrack);
+ audioTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ if (pipeline.audioTimestampRolloverStream) {
+ pipeline.audioTimestampRolloverStream.discontinuity();
+ }
+ }
+ if (videoTrack) {
+ if (pipeline.videoSegmentStream) {
+ pipeline.videoSegmentStream.gopCache_ = [];
+ pipeline.videoTimestampRolloverStream.discontinuity();
+ }
+ videoTrack.timelineStartInfo.dts = undefined;
+ videoTrack.timelineStartInfo.pts = undefined;
+ trackDecodeInfo.clearDtsInfo(videoTrack);
+ pipeline.captionStream.reset();
+ videoTrack.timelineStartInfo.baseMediaDecodeTime = baseMediaDecodeTime;
+ }
+
+ if (pipeline.timedMetadataTimestampRolloverStream) {
+ pipeline.timedMetadataTimestampRolloverStream.discontinuity();
+ }
+ };
+
+ this.setAudioAppendStart = function (timestamp) {
+ if (audioTrack) {
+ this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+ }
+ };
+
+ this.alignGopsWith = function (gopsToAlignWith) {
+ if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+ this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+ }
+ };
+
+ // feed incoming data to the front of the parsing pipeline
+ this.push = function (data) {
+ if (hasFlushed) {
+ var isAac = isLikelyAacData(data);
+
+ if (isAac && this.transmuxPipeline_.type !== 'aac') {
+ this.setupAacPipeline();
+ } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+ this.setupTsPipeline();
+ }
+ hasFlushed = false;
+ }
+ this.transmuxPipeline_.headOfPipeline.push(data);
+ };
+
+ // flush any buffered data
+ this.flush = function () {
+ hasFlushed = true;
+ // Start at the top of the pipeline and flush all pending work
+ this.transmuxPipeline_.headOfPipeline.flush();
+ };
+
+ // Caption data has to be reset when seeking outside buffered range
+ this.resetCaptions = function () {
+ if (this.transmuxPipeline_.captionStream) {
+ this.transmuxPipeline_.captionStream.reset();
+ }
+ };
+ };
+ _Transmuxer.prototype = new stream();
+
+ var transmuxer = {
+ Transmuxer: _Transmuxer,
+ VideoSegmentStream: _VideoSegmentStream,
+ AudioSegmentStream: _AudioSegmentStream,
+ AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+ VIDEO_PROPERTIES: VIDEO_PROPERTIES
+ };
+
+ var inspectMp4,
+ _textifyMp,
+ parseType$1 = probe$$1.parseType,
+ parseMp4Date = function parseMp4Date(seconds) {
+ return new Date(seconds * 1000 - 2082844800000);
+ },
+ parseSampleFlags = function parseSampleFlags(flags) {
+ return {
+ isLeading: (flags[0] & 0x0c) >>> 2,
+ dependsOn: flags[0] & 0x03,
+ isDependedOn: (flags[1] & 0xc0) >>> 6,
+ hasRedundancy: (flags[1] & 0x30) >>> 4,
+ paddingValue: (flags[1] & 0x0e) >>> 1,
+ isNonSyncSample: flags[1] & 0x01,
+ degradationPriority: flags[2] << 8 | flags[3]
+ };
+ },
+ nalParse = function nalParse(avcStream) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ i,
+ length;
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ result.push('<span style=\'color:red;\'>MALFORMED DATA</span>');
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x01:
+ result.push('slice_layer_without_partitioning_rbsp');
+ break;
+ case 0x05:
+ result.push('slice_layer_without_partitioning_rbsp_idr');
+ break;
+ case 0x06:
+ result.push('sei_rbsp');
+ break;
+ case 0x07:
+ result.push('seq_parameter_set_rbsp');
+ break;
+ case 0x08:
+ result.push('pic_parameter_set_rbsp');
+ break;
+ case 0x09:
+ result.push('access_unit_delimiter_rbsp');
+ break;
+ default:
+ result.push('UNKNOWN NAL - ' + avcStream[i] & 0x1F);
+ break;
+ }
+ }
+ return result;
+ },
+
+
+ // registry of handlers for individual mp4 box types
+ parse$$1 = {
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ avc1: function avc1(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ dataReferenceIndex: view.getUint16(6),
+ width: view.getUint16(24),
+ height: view.getUint16(26),
+ horizresolution: view.getUint16(28) + view.getUint16(30) / 16,
+ vertresolution: view.getUint16(32) + view.getUint16(34) / 16,
+ frameCount: view.getUint16(40),
+ depth: view.getUint16(74),
+ config: inspectMp4(data.subarray(78, data.byteLength))
+ };
+ },
+ avcC: function avcC(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ configurationVersion: data[0],
+ avcProfileIndication: data[1],
+ profileCompatibility: data[2],
+ avcLevelIndication: data[3],
+ lengthSizeMinusOne: data[4] & 0x03,
+ sps: [],
+ pps: []
+ },
+ numOfSequenceParameterSets = data[5] & 0x1f,
+ numOfPictureParameterSets,
+ nalSize,
+ offset,
+ i;
+
+ // iterate past any SPSs
+ offset = 6;
+ for (i = 0; i < numOfSequenceParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.sps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ // iterate past any PPSs
+ numOfPictureParameterSets = data[offset];
+ offset++;
+ for (i = 0; i < numOfPictureParameterSets; i++) {
+ nalSize = view.getUint16(offset);
+ offset += 2;
+ result.pps.push(new Uint8Array(data.subarray(offset, offset + nalSize)));
+ offset += nalSize;
+ }
+ return result;
+ },
+ btrt: function btrt(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ bufferSizeDB: view.getUint32(0),
+ maxBitrate: view.getUint32(4),
+ avgBitrate: view.getUint32(8)
+ };
+ },
+ esds: function esds(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ esId: data[6] << 8 | data[7],
+ streamPriority: data[8] & 0x1f,
+ decoderConfig: {
+ objectProfileIndication: data[11],
+ streamType: data[12] >>> 2 & 0x3f,
+ bufferSize: data[13] << 16 | data[14] << 8 | data[15],
+ maxBitrate: data[16] << 24 | data[17] << 16 | data[18] << 8 | data[19],
+ avgBitrate: data[20] << 24 | data[21] << 16 | data[22] << 8 | data[23],
+ decoderConfigDescriptor: {
+ tag: data[24],
+ length: data[25],
+ audioObjectType: data[26] >>> 3 & 0x1f,
+ samplingFrequencyIndex: (data[26] & 0x07) << 1 | data[27] >>> 7 & 0x01,
+ channelConfiguration: data[27] >>> 3 & 0x0f
+ }
+ }
+ };
+ },
+ ftyp: function ftyp(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ majorBrand: parseType$1(data.subarray(0, 4)),
+ minorVersion: view.getUint32(4),
+ compatibleBrands: []
+ },
+ i = 8;
+ while (i < data.byteLength) {
+ result.compatibleBrands.push(parseType$1(data.subarray(i, i + 4)));
+ i += 4;
+ }
+ return result;
+ },
+ dinf: function dinf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ dref: function dref(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ dataReferences: inspectMp4(data.subarray(8))
+ };
+ },
+ hdlr: function hdlr(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ handlerType: parseType$1(data.subarray(8, 12)),
+ name: ''
+ },
+ i = 8;
+
+ // parse out the name field
+ for (i = 24; i < data.byteLength; i++) {
+ if (data[i] === 0x00) {
+ // the name field is null-terminated
+ i++;
+ break;
+ }
+ result.name += String.fromCharCode(data[i]);
+ }
+ // decode UTF-8 to javascript's internal representation
+ // see http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ result.name = decodeURIComponent(escape(result.name));
+
+ return result;
+ },
+ mdat: function mdat(data) {
+ return {
+ byteLength: data.byteLength,
+ nals: nalParse(data)
+ };
+ },
+ mdhd: function mdhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ language,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ language: ''
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ // language is stored as an ISO-639-2/T code in an array of three 5-bit fields
+ // each field is the packed difference between its ASCII value and 0x60
+ language = view.getUint16(i);
+ result.language += String.fromCharCode((language >> 10) + 0x60);
+ result.language += String.fromCharCode(((language & 0x03e0) >> 5) + 0x60);
+ result.language += String.fromCharCode((language & 0x1f) + 0x60);
+
+ return result;
+ },
+ mdia: function mdia(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mfhd: function mfhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sequenceNumber: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ },
+ minf: function minf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ // codingname, not a first-class box type. stsd entries share the
+ // same format as real boxes so the parsing infrastructure can be
+ // shared
+ mp4a: function mp4a(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ // 6 bytes reserved
+ dataReferenceIndex: view.getUint16(6),
+ // 4 + 4 bytes reserved
+ channelcount: view.getUint16(16),
+ samplesize: view.getUint16(18),
+ // 2 bytes pre_defined
+ // 2 bytes reserved
+ samplerate: view.getUint16(24) + view.getUint16(26) / 65536
+ };
+
+ // if there are more bytes to process, assume this is an ISO/IEC
+ // 14496-14 MP4AudioSampleEntry and parse the ESDBox
+ if (data.byteLength > 28) {
+ result.streamDescriptor = inspectMp4(data.subarray(28))[0];
+ }
+ return result;
+ },
+ moof: function moof(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ moov: function moov(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvex: function mvex(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ mvhd: function mvhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.timescale = view.getUint32(i);
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+
+ // convert fixed-point, base 16 back to a number
+ result.rate = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ i += 2 * 4;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ i += 6 * 4;
+ result.nextTrackId = view.getUint32(i);
+ return result;
+ },
+ pdin: function pdin(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4)),
+ rate: view.getUint32(4),
+ initialDelay: view.getUint32(8)
+ };
+ },
+ sdtp: function sdtp(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ i;
+
+ for (i = 4; i < data.byteLength; i++) {
+ result.samples.push({
+ dependsOn: (data[i] & 0x30) >> 4,
+ isDependedOn: (data[i] & 0x0c) >> 2,
+ hasRedundancy: data[i] & 0x03
+ });
+ }
+ return result;
+ },
+ sidx: function sidx(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ references: [],
+ referenceId: view.getUint32(4),
+ timescale: view.getUint32(8),
+ earliestPresentationTime: view.getUint32(12),
+ firstOffset: view.getUint32(16)
+ },
+ referenceCount = view.getUint16(22),
+ i;
+
+ for (i = 24; referenceCount; i += 12, referenceCount--) {
+ result.references.push({
+ referenceType: (data[i] & 0x80) >>> 7,
+ referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+ subsegmentDuration: view.getUint32(i + 4),
+ startsWithSap: !!(data[i + 8] & 0x80),
+ sapType: (data[i + 8] & 0x70) >>> 4,
+ sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+ });
+ }
+
+ return result;
+ },
+ smhd: function smhd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ balance: data[4] + data[5] / 256
+ };
+ },
+ stbl: function stbl(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ stco: function stco(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ chunkOffsets: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+ for (i = 8; entryCount; i += 4, entryCount--) {
+ result.chunkOffsets.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stsc: function stsc(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ entryCount = view.getUint32(4),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleToChunks: []
+ },
+ i;
+ for (i = 8; entryCount; i += 12, entryCount--) {
+ result.sampleToChunks.push({
+ firstChunk: view.getUint32(i),
+ samplesPerChunk: view.getUint32(i + 4),
+ sampleDescriptionIndex: view.getUint32(i + 8)
+ });
+ }
+ return result;
+ },
+ stsd: function stsd(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleDescriptions: inspectMp4(data.subarray(8))
+ };
+ },
+ stsz: function stsz(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ sampleSize: view.getUint32(4),
+ entries: []
+ },
+ i;
+ for (i = 12; i < data.byteLength; i += 4) {
+ result.entries.push(view.getUint32(i));
+ }
+ return result;
+ },
+ stts: function stts(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ timeToSamples: []
+ },
+ entryCount = view.getUint32(4),
+ i;
+
+ for (i = 8; entryCount; i += 8, entryCount--) {
+ result.timeToSamples.push({
+ sampleCount: view.getUint32(i),
+ sampleDelta: view.getUint32(i + 4)
+ });
+ }
+ return result;
+ },
+ styp: function styp(data) {
+ return parse$$1.ftyp(data);
+ },
+ tfdt: function tfdt(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ baseMediaDecodeTime: data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]
+ };
+ if (result.version === 1) {
+ result.baseMediaDecodeTime *= Math.pow(2, 32);
+ result.baseMediaDecodeTime += data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11];
+ }
+ return result;
+ },
+ tfhd: function tfhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4)
+ },
+ baseDataOffsetPresent = result.flags[2] & 0x01,
+ sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+ defaultSampleDurationPresent = result.flags[2] & 0x08,
+ defaultSampleSizePresent = result.flags[2] & 0x10,
+ defaultSampleFlagsPresent = result.flags[2] & 0x20,
+ durationIsEmpty = result.flags[0] & 0x010000,
+ defaultBaseIsMoof = result.flags[0] & 0x020000,
+ i;
+
+ i = 8;
+ if (baseDataOffsetPresent) {
+ i += 4; // truncate top 4 bytes
+ // FIXME: should we read the full 64 bits?
+ result.baseDataOffset = view.getUint32(12);
+ i += 4;
+ }
+ if (sampleDescriptionIndexPresent) {
+ result.sampleDescriptionIndex = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleDurationPresent) {
+ result.defaultSampleDuration = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleSizePresent) {
+ result.defaultSampleSize = view.getUint32(i);
+ i += 4;
+ }
+ if (defaultSampleFlagsPresent) {
+ result.defaultSampleFlags = view.getUint32(i);
+ }
+ if (durationIsEmpty) {
+ result.durationIsEmpty = true;
+ }
+ if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+ result.baseDataOffsetIsMoof = true;
+ }
+ return result;
+ },
+ tkhd: function tkhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+ i = 4,
+ result = {
+ version: view.getUint8(0),
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ if (result.version === 1) {
+ i += 4;
+ result.creationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 8;
+ result.modificationTime = parseMp4Date(view.getUint32(i)); // truncating top 4 bytes
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 8;
+ result.duration = view.getUint32(i); // truncating top 4 bytes
+ } else {
+ result.creationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.modificationTime = parseMp4Date(view.getUint32(i));
+ i += 4;
+ result.trackId = view.getUint32(i);
+ i += 4;
+ i += 4;
+ result.duration = view.getUint32(i);
+ }
+ i += 4;
+ i += 2 * 4;
+ result.layer = view.getUint16(i);
+ i += 2;
+ result.alternateGroup = view.getUint16(i);
+ i += 2;
+ // convert fixed-point, base 16 back to a number
+ result.volume = view.getUint8(i) + view.getUint8(i + 1) / 8;
+ i += 2;
+ i += 2;
+ result.matrix = new Uint32Array(data.subarray(i, i + 9 * 4));
+ i += 9 * 4;
+ result.width = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ i += 4;
+ result.height = view.getUint16(i) + view.getUint16(i + 2) / 16;
+ return result;
+ },
+ traf: function traf(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trak: function trak(data) {
+ return {
+ boxes: inspectMp4(data)
+ };
+ },
+ trex: function trex(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ trackId: view.getUint32(4),
+ defaultSampleDescriptionIndex: view.getUint32(8),
+ defaultSampleDuration: view.getUint32(12),
+ defaultSampleSize: view.getUint32(16),
+ sampleDependsOn: data[20] & 0x03,
+ sampleIsDependedOn: (data[21] & 0xc0) >> 6,
+ sampleHasRedundancy: (data[21] & 0x30) >> 4,
+ samplePaddingValue: (data[21] & 0x0e) >> 1,
+ sampleIsDifferenceSample: !!(data[21] & 0x01),
+ sampleDegradationPriority: view.getUint16(22)
+ };
+ },
+ trun: function trun(data) {
+ var result = {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ samples: []
+ },
+ view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+
+
+ // Flag interpretation
+ dataOffsetPresent = result.flags[2] & 0x01,
+
+
+ // compare with 2nd byte of 0x1
+ firstSampleFlagsPresent = result.flags[2] & 0x04,
+
+
+ // compare with 2nd byte of 0x4
+ sampleDurationPresent = result.flags[1] & 0x01,
+
+
+ // compare with 2nd byte of 0x100
+ sampleSizePresent = result.flags[1] & 0x02,
+
+
+ // compare with 2nd byte of 0x200
+ sampleFlagsPresent = result.flags[1] & 0x04,
+
+
+ // compare with 2nd byte of 0x400
+ sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+
+
+ // compare with 2nd byte of 0x800
+ sampleCount = view.getUint32(4),
+ offset = 8,
+ sample;
+
+ if (dataOffsetPresent) {
+ // 32 bit signed integer
+ result.dataOffset = view.getInt32(offset);
+ offset += 4;
+ }
+
+ // Overrides the flags for the first sample only. The order of
+ // optional values will be: duration, size, compositionTimeOffset
+ if (firstSampleFlagsPresent && sampleCount) {
+ sample = {
+ flags: parseSampleFlags(data.subarray(offset, offset + 4))
+ };
+ offset += 4;
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ sampleCount--;
+ }
+
+ while (sampleCount--) {
+ sample = {};
+ if (sampleDurationPresent) {
+ sample.duration = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleSizePresent) {
+ sample.size = view.getUint32(offset);
+ offset += 4;
+ }
+ if (sampleFlagsPresent) {
+ sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+ offset += 4;
+ }
+ if (sampleCompositionTimeOffsetPresent) {
+ // Note: this should be a signed int if version is 1
+ sample.compositionTimeOffset = view.getUint32(offset);
+ offset += 4;
+ }
+ result.samples.push(sample);
+ }
+ return result;
+ },
+ 'url ': function url(data) {
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4))
+ };
+ },
+ vmhd: function vmhd(data) {
+ var view = new DataView(data.buffer, data.byteOffset, data.byteLength);
+ return {
+ version: data[0],
+ flags: new Uint8Array(data.subarray(1, 4)),
+ graphicsmode: view.getUint16(4),
+ opcolor: new Uint16Array([view.getUint16(6), view.getUint16(8), view.getUint16(10)])
+ };
+ }
+ };
+
+ /**
+ * Return a javascript array of box objects parsed from an ISO base
+ * media file.
+ * @param data {Uint8Array} the binary data of the media to be inspected
+ * @return {array} a javascript array of potentially nested box objects
+ */
+ inspectMp4 = function inspectMp4(data) {
+ var i = 0,
+ result = [],
+ view,
+ size,
+ type,
+ end,
+ box;
+
+ // Convert data from Uint8Array to ArrayBuffer, to follow Dataview API
+ var ab = new ArrayBuffer(data.length);
+ var v = new Uint8Array(ab);
+ for (var z = 0; z < data.length; ++z) {
+ v[z] = data[z];
+ }
+ view = new DataView(ab);
+
+ while (i < data.byteLength) {
+ // parse box data
+ size = view.getUint32(i);
+ type = parseType$1(data.subarray(i + 4, i + 8));
+ end = size > 1 ? i + size : data.byteLength;
+
+ // parse type-specific data
+ box = (parse$$1[type] || function (data) {
+ return {
+ data: data
+ };
+ })(data.subarray(i + 8, end));
+ box.size = size;
+ box.type = type;
+
+ // store this box and move to the next
+ result.push(box);
+ i = end;
+ }
+ return result;
+ };
+
+ /**
+ * Returns a textual representation of the javascript represtentation
+ * of an MP4 file. You can use it as an alternative to
+ * JSON.stringify() to compare inspected MP4s.
+ * @param inspectedMp4 {array} the parsed array of boxes in an MP4
+ * file
+ * @param depth {number} (optional) the number of ancestor boxes of
+ * the elements of inspectedMp4. Assumed to be zero if unspecified.
+ * @return {string} a text representation of the parsed MP4
+ */
+ _textifyMp = function textifyMp4(inspectedMp4, depth) {
+ var indent;
+ depth = depth || 0;
+ indent = new Array(depth * 2 + 1).join(' ');
+
+ // iterate over all the boxes
+ return inspectedMp4.map(function (box, index) {
+
+ // list the box type first at the current indentation level
+ return indent + box.type + '\n' +
+
+ // the type is already included and handle child boxes separately
+ Object.keys(box).filter(function (key) {
+ return key !== 'type' && key !== 'boxes';
+
+ // output all the box properties
+ }).map(function (key) {
+ var prefix = indent + ' ' + key + ': ',
+ value = box[key];
+
+ // print out raw bytes as hexademical
+ if (value instanceof Uint8Array || value instanceof Uint32Array) {
+ var bytes = Array.prototype.slice.call(new Uint8Array(value.buffer, value.byteOffset, value.byteLength)).map(function (byte) {
+ return ' ' + ('00' + byte.toString(16)).slice(-2);
+ }).join('').match(/.{1,24}/g);
+ if (!bytes) {
+ return prefix + '<>';
+ }
+ if (bytes.length === 1) {
+ return prefix + '<' + bytes.join('').slice(1) + '>';
+ }
+ return prefix + '<\n' + bytes.map(function (line) {
+ return indent + ' ' + line;
+ }).join('\n') + '\n' + indent + ' >';
+ }
+
+ // stringify generic objects
+ return prefix + JSON.stringify(value, null, 2).split('\n').map(function (line, index) {
+ if (index === 0) {
+ return line;
+ }
+ return indent + ' ' + line;
+ }).join('\n');
+ }).join('\n') + (
+
+ // recursively textify the child boxes
+ box.boxes ? '\n' + _textifyMp(box.boxes, depth + 1) : '');
+ }).join('\n');
+ };
+
+ var mp4Inspector = {
+ inspect: inspectMp4,
+ textify: _textifyMp,
+ parseTfdt: parse$$1.tfdt,
+ parseHdlr: parse$$1.hdlr,
+ parseTfhd: parse$$1.tfhd,
+ parseTrun: parse$$1.trun
+ };
+
+ var discardEmulationPreventionBytes$1 = captionPacketParser.discardEmulationPreventionBytes;
+ var CaptionStream$1 = captionStream.CaptionStream;
+
+ /**
+ * Maps an offset in the mdat to a sample based on the the size of the samples.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Number} offset - The offset into the mdat
+ * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+ * @return {?Object} The matching sample, or null if no match was found.
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var mapToSample = function mapToSample(offset, samples) {
+ var approximateOffset = offset;
+
+ for (var i = 0; i < samples.length; i++) {
+ var sample = samples[i];
+
+ if (approximateOffset < sample.size) {
+ return sample;
+ }
+
+ approximateOffset -= sample.size;
+ }
+
+ return null;
+ };
+
+ /**
+ * Finds SEI nal units contained in a Media Data Box.
+ * Assumes that `parseSamples` has been called first.
+ *
+ * @param {Uint8Array} avcStream - The bytes of the mdat
+ * @param {Object[]} samples - The samples parsed out by `parseSamples`
+ * @param {Number} trackId - The trackId of this video track
+ * @return {Object[]} seiNals - the parsed SEI NALUs found.
+ * The contents of the seiNal should match what is expected by
+ * CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+ *
+ * @see ISO-BMFF-12/2015, Section 8.1.1
+ * @see Rec. ITU-T H.264, 7.3.2.3.1
+ **/
+ var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
+ var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+ result = [],
+ seiNal,
+ i,
+ length,
+ lastMatchedSample;
+
+ for (i = 0; i + 4 < avcStream.length; i += length) {
+ length = avcView.getUint32(i);
+ i += 4;
+
+ // Bail if this doesn't appear to be an H264 stream
+ if (length <= 0) {
+ continue;
+ }
+
+ switch (avcStream[i] & 0x1F) {
+ case 0x06:
+ var data = avcStream.subarray(i + 1, i + 1 + length);
+ var matchingSample = mapToSample(i, samples);
+
+ seiNal = {
+ nalUnitType: 'sei_rbsp',
+ size: length,
+ data: data,
+ escapedRBSP: discardEmulationPreventionBytes$1(data),
+ trackId: trackId
+ };
+
+ if (matchingSample) {
+ seiNal.pts = matchingSample.pts;
+ seiNal.dts = matchingSample.dts;
+ lastMatchedSample = matchingSample;
+ } else {
+ // If a matching sample cannot be found, use the last
+ // sample's values as they should be as close as possible
+ seiNal.pts = lastMatchedSample.pts;
+ seiNal.dts = lastMatchedSample.dts;
+ }
+
+ result.push(seiNal);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return result;
+ };
+
+ /**
+ * Parses sample information out of Track Run Boxes and calculates
+ * the absolute presentation and decode timestamps of each sample.
+ *
+ * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+ * @param {Number} baseMediaDecodeTime - base media decode time from tfdt
+ @see ISO-BMFF-12/2015, Section 8.8.12
+ * @param {Object} tfhd - The parsed Track Fragment Header
+ * @see inspect.parseTfhd
+ * @return {Object[]} the parsed samples
+ *
+ * @see ISO-BMFF-12/2015, Section 8.8.8
+ **/
+ var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
+ var currentDts = baseMediaDecodeTime;
+ var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+ var defaultSampleSize = tfhd.defaultSampleSize || 0;
+ var trackId = tfhd.trackId;
+ var allSamples = [];
+
+ truns.forEach(function (trun) {
+ // Note: We currently do not parse the sample table as well
+ // as the trun. It's possible some sources will require this.
+ // moov > trak > mdia > minf > stbl
+ var trackRun = mp4Inspector.parseTrun(trun);
+ var samples = trackRun.samples;
+
+ samples.forEach(function (sample) {
+ if (sample.duration === undefined) {
+ sample.duration = defaultSampleDuration;
+ }
+ if (sample.size === undefined) {
+ sample.size = defaultSampleSize;
+ }
+ sample.trackId = trackId;
+ sample.dts = currentDts;
+ if (sample.compositionTimeOffset === undefined) {
+ sample.compositionTimeOffset = 0;
+ }
+ sample.pts = currentDts + sample.compositionTimeOffset;
+
+ currentDts += sample.duration;
+ });
+
+ allSamples = allSamples.concat(samples);
+ });
+
+ return allSamples;
+ };
+
+ /**
+ * Parses out caption nals from an FMP4 segment's video tracks.
+ *
+ * @param {Uint8Array} segment - The bytes of a single segment
+ * @param {Number} videoTrackId - The trackId of a video track in the segment
+ * @return {Object.<Number, Object[]>} A mapping of video trackId to
+ * a list of seiNals found in that track
+ **/
+ var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
+ // To get the samples
+ var trafs = probe$$1.findBox(segment, ['moof', 'traf']);
+ // To get SEI NAL units
+ var mdats = probe$$1.findBox(segment, ['mdat']);
+ var captionNals = {};
+ var mdatTrafPairs = [];
+
+ // Pair up each traf with a mdat as moofs and mdats are in pairs
+ mdats.forEach(function (mdat, index) {
+ var matchingTraf = trafs[index];
+ mdatTrafPairs.push({
+ mdat: mdat,
+ traf: matchingTraf
+ });
+ });
+
+ mdatTrafPairs.forEach(function (pair) {
+ var mdat = pair.mdat;
+ var traf = pair.traf;
+ var tfhd = probe$$1.findBox(traf, ['tfhd']);
+ // Exactly 1 tfhd per traf
+ var headerInfo = mp4Inspector.parseTfhd(tfhd[0]);
+ var trackId = headerInfo.trackId;
+ var tfdt = probe$$1.findBox(traf, ['tfdt']);
+ // Either 0 or 1 tfdt per traf
+ var baseMediaDecodeTime = tfdt.length > 0 ? mp4Inspector.parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
+ var truns = probe$$1.findBox(traf, ['trun']);
+ var samples;
+ var seiNals;
+
+ // Only parse video data for the chosen video track
+ if (videoTrackId === trackId && truns.length > 0) {
+ samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+
+ seiNals = findSeiNals(mdat, samples, trackId);
+
+ if (!captionNals[trackId]) {
+ captionNals[trackId] = [];
+ }
+
+ captionNals[trackId] = captionNals[trackId].concat(seiNals);
+ }
+ });
+
+ return captionNals;
+ };
+
+ /**
+ * Parses out inband captions from an MP4 container and returns
+ * caption objects that can be used by WebVTT and the TextTrack API.
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+ * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number} trackId - The id of the video track to parse
+ * @param {Number} timescale - The timescale for the video track from the init segment
+ *
+ * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+ * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+ * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+ * @return {String} parsedCaptions[].text - The visible content of the caption
+ **/
+ var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
+ var seiNals;
+
+ if (!trackId) {
+ return null;
+ }
+
+ seiNals = parseCaptionNals(segment, trackId);
+
+ return {
+ seiNals: seiNals[trackId],
+ timescale: timescale
+ };
+ };
+
+ /**
+ * Converts SEI NALUs into captions that can be used by video.js
+ **/
+ var CaptionParser$$1 = function CaptionParser$$1() {
+ var isInitialized = false;
+ var captionStream$$1;
+
+ // Stores segments seen before trackId and timescale are set
+ var segmentCache;
+ // Stores video track ID of the track being parsed
+ var trackId;
+ // Stores the timescale of the track being parsed
+ var timescale;
+ // Stores captions parsed so far
+ var parsedCaptions;
+
+ /**
+ * A method to indicate whether a CaptionParser has been initalized
+ * @returns {Boolean}
+ **/
+ this.isInitialized = function () {
+ return isInitialized;
+ };
+
+ /**
+ * Initializes the underlying CaptionStream, SEI NAL parsing
+ * and management, and caption collection
+ **/
+ this.init = function () {
+ captionStream$$1 = new CaptionStream$1();
+ isInitialized = true;
+
+ // Collect dispatched captions
+ captionStream$$1.on('data', function (event) {
+ // Convert to seconds in the source's timescale
+ event.startTime = event.startPts / timescale;
+ event.endTime = event.endPts / timescale;
+
+ parsedCaptions.captions.push(event);
+ parsedCaptions.captionStreams[event.stream] = true;
+ });
+ };
+
+ /**
+ * Determines if a new video track will be selected
+ * or if the timescale changed
+ * @return {Boolean}
+ **/
+ this.isNewInit = function (videoTrackIds, timescales) {
+ if (videoTrackIds && videoTrackIds.length === 0 || timescales && (typeof timescales === 'undefined' ? 'undefined' : _typeof(timescales)) === 'object' && Object.keys(timescales).length === 0) {
+ return false;
+ }
+
+ return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+ };
+
+ /**
+ * Parses out SEI captions and interacts with underlying
+ * CaptionStream to return dispatched captions
+ *
+ * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+ * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+ * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+ * @see parseEmbeddedCaptions
+ * @see m2ts/caption-stream.js
+ **/
+ this.parse = function (segment, videoTrackIds, timescales) {
+ var parsedData;
+
+ if (!this.isInitialized()) {
+ return null;
+
+ // This is not likely to be a video segment
+ } else if (!videoTrackIds || !timescales) {
+ return null;
+ } else if (this.isNewInit(videoTrackIds, timescales)) {
+ // Use the first video track only as there is no
+ // mechanism to switch to other video tracks
+ trackId = videoTrackIds[0];
+ timescale = timescales[trackId];
+
+ // If an init segment has not been seen yet, hold onto segment
+ // data until we have one
+ } else if (!trackId || !timescale) {
+ segmentCache.push(segment);
+ return null;
+ }
+
+ // Now that a timescale and trackId is set, parse cached segments
+ while (segmentCache.length > 0) {
+ var cachedSegment = segmentCache.shift();
+
+ this.parse(cachedSegment, videoTrackIds, timescales);
+ }
+
+ parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+
+ if (parsedData === null || !parsedData.seiNals) {
+ return null;
+ }
+
+ this.pushNals(parsedData.seiNals);
+ // Force the parsed captions to be dispatched
+ this.flushStream();
+
+ return parsedCaptions;
+ };
+
+ /**
+ * Pushes SEI NALUs onto CaptionStream
+ * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+ * Assumes that `parseCaptionNals` has been called first
+ * @see m2ts/caption-stream.js
+ **/
+ this.pushNals = function (nals) {
+ if (!this.isInitialized() || !nals || nals.length === 0) {
+ return null;
+ }
+
+ nals.forEach(function (nal) {
+ captionStream$$1.push(nal);
+ });
+ };
+
+ /**
+ * Flushes underlying CaptionStream to dispatch processed, displayable captions
+ * @see m2ts/caption-stream.js
+ **/
+ this.flushStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.flush();
+ };
+
+ /**
+ * Reset caption buckets for new data
+ **/
+ this.clearParsedCaptions = function () {
+ parsedCaptions.captions = [];
+ parsedCaptions.captionStreams = {};
+ };
+
+ /**
+ * Resets underlying CaptionStream
+ * @see m2ts/caption-stream.js
+ **/
+ this.resetCaptionStream = function () {
+ if (!this.isInitialized()) {
+ return null;
+ }
+
+ captionStream$$1.reset();
+ };
+
+ /**
+ * Convenience method to clear all captions flushed from the
+ * CaptionStream and still being parsed
+ * @see m2ts/caption-stream.js
+ **/
+ this.clearAllCaptions = function () {
+ this.clearParsedCaptions();
+ this.resetCaptionStream();
+ };
+
+ /**
+ * Reset caption parser
+ **/
+ this.reset = function () {
+ segmentCache = [];
+ trackId = null;
+ timescale = null;
+
+ if (!parsedCaptions) {
+ parsedCaptions = {
+ captions: [],
+ // CC1, CC2, CC3, CC4
+ captionStreams: {}
+ };
+ } else {
+ this.clearParsedCaptions();
+ }
+
+ this.resetCaptionStream();
+ };
+
+ this.reset();
+ };
+
+ var captionParser = CaptionParser$$1;
+
+ var mp4 = {
+ generator: mp4Generator,
+ probe: probe$$1,
+ Transmuxer: transmuxer.Transmuxer,
+ AudioSegmentStream: transmuxer.AudioSegmentStream,
+ VideoSegmentStream: transmuxer.VideoSegmentStream,
+ CaptionParser: captionParser
+ };
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ /**
+ * @file transmuxer-worker.js
+ */
+
+ /**
+ * Re-emits transmuxer events by converting them into messages to the
+ * world outside the worker.
+ *
+ * @param {Object} transmuxer the transmuxer to wire events on
+ * @private
+ */
+ var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {
+ transmuxer.on('data', function (segment) {
+ // transfer ownership of the underlying ArrayBuffer
+ // instead of doing a copy to save memory
+ // ArrayBuffers are transferable but generic TypedArrays are not
+ // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
+ var initArray = segment.initSegment;
+
+ segment.initSegment = {
+ data: initArray.buffer,
+ byteOffset: initArray.byteOffset,
+ byteLength: initArray.byteLength
+ };
+
+ var typedArray = segment.data;
+
+ segment.data = typedArray.buffer;
+ self.postMessage({
+ action: 'data',
+ segment: segment,
+ byteOffset: typedArray.byteOffset,
+ byteLength: typedArray.byteLength
+ }, [segment.data]);
+ });
+
+ if (transmuxer.captionStream) {
+ transmuxer.captionStream.on('data', function (caption) {
+ self.postMessage({
+ action: 'caption',
+ data: caption
+ });
+ });
+ }
+
+ transmuxer.on('done', function (data) {
+ self.postMessage({ action: 'done' });
+ });
+
+ transmuxer.on('gopInfo', function (gopInfo) {
+ self.postMessage({
+ action: 'gopInfo',
+ gopInfo: gopInfo
+ });
+ });
+ };
+
+ /**
+ * All incoming messages route through this hash. If no function exists
+ * to handle an incoming message, then we ignore the message.
+ *
+ * @class MessageHandlers
+ * @param {Object} options the options to initialize with
+ */
+
+ var MessageHandlers = function () {
+ function MessageHandlers(self, options) {
+ classCallCheck$$1(this, MessageHandlers);
+
+ this.options = options || {};
+ this.self = self;
+ this.init();
+ }
+
+ /**
+ * initialize our web worker and wire all the events.
+ */
+
+ createClass$$1(MessageHandlers, [{
+ key: 'init',
+ value: function init() {
+ if (this.transmuxer) {
+ this.transmuxer.dispose();
+ }
+ this.transmuxer = new mp4.Transmuxer(this.options);
+ wireTransmuxerEvents(this.self, this.transmuxer);
+ }
+
+ /**
+ * Adds data (a ts segment) to the start of the transmuxer pipeline for
+ * processing.
+ *
+ * @param {ArrayBuffer} data data to push into the muxer
+ */
+
+ }, {
+ key: 'push',
+ value: function push(data) {
+ // Cast array buffer to correct type for transmuxer
+ var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+
+ this.transmuxer.push(segment);
+ }
+
+ /**
+ * Recreate the transmuxer so that the next segment added via `push`
+ * start with a fresh transmuxer.
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.init();
+ }
+
+ /**
+ * Set the value that will be used as the `baseMediaDecodeTime` time for the
+ * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
+ * set relative to the first based on the PTS values.
+ *
+ * @param {Object} data used to set the timestamp offset in the muxer
+ */
+
+ }, {
+ key: 'setTimestampOffset',
+ value: function setTimestampOffset(data) {
+ var timestampOffset = data.timestampOffset || 0;
+
+ this.transmuxer.setBaseMediaDecodeTime(Math.round(timestampOffset * 90000));
+ }
+ }, {
+ key: 'setAudioAppendStart',
+ value: function setAudioAppendStart(data) {
+ this.transmuxer.setAudioAppendStart(Math.ceil(data.appendStart * 90000));
+ }
+
+ /**
+ * Forces the pipeline to finish processing the last segment and emit it's
+ * results.
+ *
+ * @param {Object} data event data, not really used
+ */
+
+ }, {
+ key: 'flush',
+ value: function flush(data) {
+ this.transmuxer.flush();
+ }
+ }, {
+ key: 'resetCaptions',
+ value: function resetCaptions() {
+ this.transmuxer.resetCaptions();
+ }
+ }, {
+ key: 'alignGopsWith',
+ value: function alignGopsWith(data) {
+ this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
+ }
+ }]);
+ return MessageHandlers;
+ }();
+
+ /**
+ * Our web wroker interface so that things can talk to mux.js
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self the scope for the web worker
+ */
+
+ var TransmuxerWorker = function TransmuxerWorker(self) {
+ self.onmessage = function (event) {
+ if (event.data.action === 'init' && event.data.options) {
+ this.messageHandlers = new MessageHandlers(self, event.data.options);
+ return;
+ }
+
+ if (!this.messageHandlers) {
+ this.messageHandlers = new MessageHandlers(self);
+ }
+
+ if (event.data && event.data.action && event.data.action !== 'init') {
+ if (this.messageHandlers[event.data.action]) {
+ this.messageHandlers[event.data.action](event.data);
+ }
+ }
+ };
+ };
+
+ var transmuxerWorker = new TransmuxerWorker(self);
+
+ return transmuxerWorker;
+ }();
+ });
+
+ /**
+ * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
+ * codec strings, or translating codec strings into objects that can be examined.
+ */
+
+ // Default codec parameters if none were provided for video and/or audio
+ var defaultCodecs = {
+ videoCodec: 'avc1',
+ videoObjectTypeIndicator: '.4d400d',
+ // AAC-LC
+ audioProfile: '2'
+ };
+
+ /**
+ * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
+ * `avc1.<hhhhhh>`
+ *
+ * @param {Array} codecs an array of codec strings to fix
+ * @return {Array} the translated codec array
+ * @private
+ */
+ var translateLegacyCodecs = function translateLegacyCodecs(codecs) {
+ return codecs.map(function (codec) {
+ return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
+ var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
+ var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
+
+ return 'avc1.' + profileHex + '00' + avcLevelHex;
+ });
+ });
+ };
+
+ /**
+ * Parses a codec string to retrieve the number of codecs specified,
+ * the video codec and object type indicator, and the audio profile.
+ */
+
+ var parseCodecs = function parseCodecs() {
+ var codecs = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
+
+ var result = {
+ codecCount: 0
+ };
+ var parsed = void 0;
+
+ result.codecCount = codecs.split(',').length;
+ result.codecCount = result.codecCount || 2;
+
+ // parse the video codec
+ parsed = /(^|\s|,)+(avc[13])([^ ,]*)/i.exec(codecs);
+ if (parsed) {
+ result.videoCodec = parsed[2];
+ result.videoObjectTypeIndicator = parsed[3];
+ }
+
+ // parse the last field of the audio codec
+ result.audioProfile = /(^|\s|,)+mp4a.[0-9A-Fa-f]+\.([0-9A-Fa-f]+)/i.exec(codecs);
+ result.audioProfile = result.audioProfile && result.audioProfile[2];
+
+ return result;
+ };
+
+ /**
+ * Replace codecs in the codec string with the old apple-style `avc1.<dd>.<dd>` to the
+ * standard `avc1.<hhhhhh>`.
+ *
+ * @param codecString {String} the codec string
+ * @return {String} the codec string with old apple-style codecs replaced
+ *
+ * @private
+ */
+ var mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {
+ return codecString.replace(/avc1\.(\d+)\.(\d+)/i, function (match) {
+ return translateLegacyCodecs([match])[0];
+ });
+ };
+
+ /**
+ * Build a media mime-type string from a set of parameters
+ * @param {String} type either 'audio' or 'video'
+ * @param {String} container either 'mp2t' or 'mp4'
+ * @param {Array} codecs an array of codec strings to add
+ * @return {String} a valid media mime-type
+ */
+ var makeMimeTypeString = function makeMimeTypeString(type, container, codecs) {
+ // The codecs array is filtered so that falsey values are
+ // dropped and don't cause Array#join to create spurious
+ // commas
+ return type + '/' + container + '; codecs="' + codecs.filter(function (c) {
+ return !!c;
+ }).join(', ') + '"';
+ };
+
+ /**
+ * Returns the type container based on information in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {String} a valid media container type
+ */
+ var getContainerType = function getContainerType(media) {
+ // An initialization segment means the media playlist is an iframe
+ // playlist or is using the mp4 container. We don't currently
+ // support iframe playlists, so assume this is signalling mp4
+ // fragments.
+ if (media.segments && media.segments.length && media.segments[0].map) {
+ return 'mp4';
+ }
+ return 'mp2t';
+ };
+
+ /**
+ * Returns a set of codec strings parsed from the playlist or the default
+ * codec strings if no codecs were specified in the playlist
+ * @param {Playlist} media the current media playlist
+ * @return {Object} an object with the video and audio codecs
+ */
+ var getCodecs = function getCodecs(media) {
+ // if the codecs were explicitly specified, use them instead of the
+ // defaults
+ var mediaAttributes = media.attributes || {};
+
+ if (mediaAttributes.CODECS) {
+ return parseCodecs(mediaAttributes.CODECS);
+ }
+ return defaultCodecs;
+ };
+
+ var audioProfileFromDefault = function audioProfileFromDefault(master, audioGroupId) {
+ if (!master.mediaGroups.AUDIO || !audioGroupId) {
+ return null;
+ }
+
+ var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
+
+ if (!audioGroup) {
+ return null;
+ }
+
+ for (var name in audioGroup) {
+ var audioType = audioGroup[name];
+
+ if (audioType.default && audioType.playlists) {
+ // codec should be the same for all playlists within the audio type
+ return parseCodecs(audioType.playlists[0].attributes.CODECS).audioProfile;
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Calculates the MIME type strings for a working configuration of
+ * SourceBuffers to play variant streams in a master playlist. If
+ * there is no possible working configuration, an empty array will be
+ * returned.
+ *
+ * @param master {Object} the m3u8 object for the master playlist
+ * @param media {Object} the m3u8 object for the variant playlist
+ * @return {Array} the MIME type strings. If the array has more than
+ * one entry, the first element should be applied to the video
+ * SourceBuffer and the second to the audio SourceBuffer.
+ *
+ * @private
+ */
+ var mimeTypesForPlaylist = function mimeTypesForPlaylist(master, media) {
+ var containerType = getContainerType(media);
+ var codecInfo = getCodecs(media);
+ var mediaAttributes = media.attributes || {};
+ // Default condition for a traditional HLS (no demuxed audio/video)
+ var isMuxed = true;
+ var isMaat = false;
+
+ if (!media) {
+ // Not enough information
+ return [];
+ }
+
+ if (master.mediaGroups.AUDIO && mediaAttributes.AUDIO) {
+ var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+
+ // Handle the case where we are in a multiple-audio track scenario
+ if (audioGroup) {
+ isMaat = true;
+ // Start with the everything demuxed then...
+ isMuxed = false;
+ // ...check to see if any audio group tracks are muxed (ie. lacking a uri)
+ for (var groupId in audioGroup) {
+ // either a uri is present (if the case of HLS and an external playlist), or
+ // playlists is present (in the case of DASH where we don't have external audio
+ // playlists)
+ if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+ isMuxed = true;
+ break;
+ }
+ }
+ }
+ }
+
+ // HLS with multiple-audio tracks must always get an audio codec.
+ // Put another way, there is no way to have a video-only multiple-audio HLS!
+ if (isMaat && !codecInfo.audioProfile) {
+ if (!isMuxed) {
+ // It is possible for codecs to be specified on the audio media group playlist but
+ // not on the rendition playlist. This is mostly the case for DASH, where audio and
+ // video are always separate (and separately specified).
+ codecInfo.audioProfile = audioProfileFromDefault(master, mediaAttributes.AUDIO);
+ }
+
+ if (!codecInfo.audioProfile) {
+ videojs$1.log.warn('Multiple audio tracks present but no audio codec string is specified. ' + 'Attempting to use the default audio codec (mp4a.40.2)');
+ codecInfo.audioProfile = defaultCodecs.audioProfile;
+ }
+ }
+
+ // Generate the final codec strings from the codec object generated above
+ var codecStrings = {};
+
+ if (codecInfo.videoCodec) {
+ codecStrings.video = '' + codecInfo.videoCodec + codecInfo.videoObjectTypeIndicator;
+ }
+
+ if (codecInfo.audioProfile) {
+ codecStrings.audio = 'mp4a.40.' + codecInfo.audioProfile;
+ }
+
+ // Finally, make and return an array with proper mime-types depending on
+ // the configuration
+ var justAudio = makeMimeTypeString('audio', containerType, [codecStrings.audio]);
+ var justVideo = makeMimeTypeString('video', containerType, [codecStrings.video]);
+ var bothVideoAudio = makeMimeTypeString('video', containerType, [codecStrings.video, codecStrings.audio]);
+
+ if (isMaat) {
+ if (!isMuxed && codecStrings.video) {
+ return [justVideo, justAudio];
+ }
+
+ if (!isMuxed && !codecStrings.video) {
+ // There is no muxed content and no video codec string, so this is an audio only
+ // stream with alternate audio.
+ return [justAudio, justAudio];
+ }
+
+ // There exists the possiblity that this will return a `video/container`
+ // mime-type for the first entry in the array even when there is only audio.
+ // This doesn't appear to be a problem and simplifies the code.
+ return [bothVideoAudio, justAudio];
+ }
+
+ // If there is no video codec at all, always just return a single
+ // audio/<container> mime-type
+ if (!codecStrings.video) {
+ return [justAudio];
+ }
+
+ // When not using separate audio media groups, audio and video is
+ // *always* muxed
+ return [bothVideoAudio];
+ };
+
+ /**
+ * Parse a content type header into a type and parameters
+ * object
+ *
+ * @param {String} type the content type header
+ * @return {Object} the parsed content-type
+ * @private
+ */
+ var parseContentType = function parseContentType(type) {
+ var object = { type: '', parameters: {} };
+ var parameters = type.trim().split(';');
+
+ // first parameter should always be content-type
+ object.type = parameters.shift().trim();
+ parameters.forEach(function (parameter) {
+ var pair = parameter.trim().split('=');
+
+ if (pair.length > 1) {
+ var name = pair[0].replace(/"/g, '').trim();
+ var value = pair[1].replace(/"/g, '').trim();
+
+ object.parameters[name] = value;
+ }
+ });
+
+ return object;
+ };
+
+ /**
+ * Check if a codec string refers to an audio codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is an audio codec
+ * @private
+ */
+ var isAudioCodec = function isAudioCodec(codec) {
+ return (/mp4a\.\d+.\d+/i.test(codec)
+ );
+ };
+
+ /**
+ * Check if a codec string refers to a video codec.
+ *
+ * @param {String} codec codec string to check
+ * @return {Boolean} if this is a video codec
+ * @private
+ */
+ var isVideoCodec = function isVideoCodec(codec) {
+ return (/avc1\.[\da-f]+/i.test(codec)
+ );
+ };
+
+ /**
+ * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
+ * front of current time.
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Number} currentTime
+ * The current time
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ * @return {Array}
+ * List of gops considered safe to append over
+ */
+ var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {
+ if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
+ return [];
+ }
+
+ // pts value for current time + 3 seconds to give a bit more wiggle room
+ var currentTimePts = Math.ceil((currentTime - mapping + 3) * 90000);
+
+ var i = void 0;
+
+ for (i = 0; i < buffer.length; i++) {
+ if (buffer[i].pts > currentTimePts) {
+ break;
+ }
+ }
+
+ return buffer.slice(i);
+ };
+
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Array} gops
+ * List of new gop information
+ * @param {boolean} replace
+ * If true, replace the buffer with the new gop information. If false, append the
+ * new gop information to the buffer in the right location of time.
+ * @return {Array}
+ * Updated list of gop information
+ */
+ var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {
+ if (!gops.length) {
+ return buffer;
+ }
+
+ if (replace) {
+ // If we are in safe append mode, then completely overwrite the gop buffer
+ // with the most recent appeneded data. This will make sure that when appending
+ // future segments, we only try to align with gops that are both ahead of current
+ // time and in the last segment appended.
+ return gops.slice();
+ }
+
+ var start = gops[0].pts;
+
+ var i = 0;
+
+ for (i; i < buffer.length; i++) {
+ if (buffer[i].pts >= start) {
+ break;
+ }
+ }
+
+ return buffer.slice(0, i).concat(gops);
+ };
+
+ /**
+ * Removes gop information in buffer that overlaps with provided start and end
+ *
+ * @param {Array} buffer
+ * The current buffer of gop information
+ * @param {Double} start
+ * position to start the remove at
+ * @param {Double} end
+ * position to end the remove at
+ * @param {Double} mapping
+ * Offset to map display time to stream presentation time
+ */
+ var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {
+ var startPts = Math.ceil((start - mapping) * 90000);
+ var endPts = Math.ceil((end - mapping) * 90000);
+ var updatedBuffer = buffer.slice();
+
+ var i = buffer.length;
+
+ while (i--) {
+ if (buffer[i].pts <= endPts) {
+ break;
+ }
+ }
+
+ if (i === -1) {
+ // no removal because end of remove range is before start of buffer
+ return updatedBuffer;
+ }
+
+ var j = i + 1;
+
+ while (j--) {
+ if (buffer[j].pts <= startPts) {
+ break;
+ }
+ }
+
+ // clamp remove range start to 0 index
+ j = Math.max(j, 0);
+
+ updatedBuffer.splice(j, i - j + 1);
+
+ return updatedBuffer;
+ };
+
+ var buffered = function buffered(videoBuffer, audioBuffer, audioDisabled) {
+ var start = null;
+ var end = null;
+ var arity = 0;
+ var extents = [];
+ var ranges = [];
+
+ // neither buffer has been created yet
+ if (!videoBuffer && !audioBuffer) {
+ return videojs$1.createTimeRange();
+ }
+
+ // only one buffer is configured
+ if (!videoBuffer) {
+ return audioBuffer.buffered;
+ }
+ if (!audioBuffer) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are configured
+ if (audioDisabled) {
+ return videoBuffer.buffered;
+ }
+
+ // both buffers are empty
+ if (videoBuffer.buffered.length === 0 && audioBuffer.buffered.length === 0) {
+ return videojs$1.createTimeRange();
+ }
+
+ // Handle the case where we have both buffers and create an
+ // intersection of the two
+ var videoBuffered = videoBuffer.buffered;
+ var audioBuffered = audioBuffer.buffered;
+ var count = videoBuffered.length;
+
+ // A) Gather up all start and end times
+ while (count--) {
+ extents.push({ time: videoBuffered.start(count), type: 'start' });
+ extents.push({ time: videoBuffered.end(count), type: 'end' });
+ }
+ count = audioBuffered.length;
+ while (count--) {
+ extents.push({ time: audioBuffered.start(count), type: 'start' });
+ extents.push({ time: audioBuffered.end(count), type: 'end' });
+ }
+ // B) Sort them by time
+ extents.sort(function (a, b) {
+ return a.time - b.time;
+ });
+
+ // C) Go along one by one incrementing arity for start and decrementing
+ // arity for ends
+ for (count = 0; count < extents.length; count++) {
+ if (extents[count].type === 'start') {
+ arity++;
+
+ // D) If arity is ever incremented to 2 we are entering an
+ // overlapping range
+ if (arity === 2) {
+ start = extents[count].time;
+ }
+ } else if (extents[count].type === 'end') {
+ arity--;
+
+ // E) If arity is ever decremented to 1 we leaving an
+ // overlapping range
+ if (arity === 1) {
+ end = extents[count].time;
+ }
+ }
+
+ // F) Record overlapping ranges
+ if (start !== null && end !== null) {
+ ranges.push([start, end]);
+ start = null;
+ end = null;
+ }
+ }
+
+ return videojs$1.createTimeRanges(ranges);
+ };
+
+ /**
+ * @file virtual-source-buffer.js
+ */
+
+ // We create a wrapper around the SourceBuffer so that we can manage the
+ // state of the `updating` property manually. We have to do this because
+ // Firefox changes `updating` to false long before triggering `updateend`
+ // events and that was causing strange problems in videojs-contrib-hls
+ var makeWrappedSourceBuffer = function makeWrappedSourceBuffer(mediaSource, mimeType) {
+ var sourceBuffer = mediaSource.addSourceBuffer(mimeType);
+ var wrapper = Object.create(null);
+
+ wrapper.updating = false;
+ wrapper.realBuffer_ = sourceBuffer;
+
+ var _loop = function _loop(key) {
+ if (typeof sourceBuffer[key] === 'function') {
+ wrapper[key] = function () {
+ return sourceBuffer[key].apply(sourceBuffer, arguments);
+ };
+ } else if (typeof wrapper[key] === 'undefined') {
+ Object.defineProperty(wrapper, key, {
+ get: function get$$1() {
+ return sourceBuffer[key];
+ },
+ set: function set$$1(v) {
+ return sourceBuffer[key] = v;
+ }
+ });
+ }
+ };
+
+ for (var key in sourceBuffer) {
+ _loop(key);
+ }
+
+ return wrapper;
+ };
+
+ /**
+ * VirtualSourceBuffers exist so that we can transmux non native formats
+ * into a native format, but keep the same api as a native source buffer.
+ * It creates a transmuxer, that works in its own thread (a web worker) and
+ * that transmuxer muxes the data into a native format. VirtualSourceBuffer will
+ * then send all of that data to the naive sourcebuffer so that it is
+ * indestinguishable from a natively supported format.
+ *
+ * @param {HtmlMediaSource} mediaSource the parent mediaSource
+ * @param {Array} codecs array of codecs that we will be dealing with
+ * @class VirtualSourceBuffer
+ * @extends video.js.EventTarget
+ */
+
+ var VirtualSourceBuffer = function (_videojs$EventTarget) {
+ inherits$3(VirtualSourceBuffer, _videojs$EventTarget);
+
+ function VirtualSourceBuffer(mediaSource, codecs) {
+ classCallCheck$3(this, VirtualSourceBuffer);
+
+ var _this = possibleConstructorReturn$3(this, (VirtualSourceBuffer.__proto__ || Object.getPrototypeOf(VirtualSourceBuffer)).call(this, videojs$1.EventTarget));
+
+ _this.timestampOffset_ = 0;
+ _this.pendingBuffers_ = [];
+ _this.bufferUpdating_ = false;
+
+ _this.mediaSource_ = mediaSource;
+ _this.codecs_ = codecs;
+ _this.audioCodec_ = null;
+ _this.videoCodec_ = null;
+ _this.audioDisabled_ = false;
+ _this.appendAudioInitSegment_ = true;
+ _this.gopBuffer_ = [];
+ _this.timeMapping_ = 0;
+ _this.safeAppend_ = videojs$1.browser.IE_VERSION >= 11;
+
+ var options = {
+ remux: false,
+ alignGopsAtEnd: _this.safeAppend_
+ };
+
+ _this.codecs_.forEach(function (codec) {
+ if (isAudioCodec(codec)) {
+ _this.audioCodec_ = codec;
+ } else if (isVideoCodec(codec)) {
+ _this.videoCodec_ = codec;
+ }
+ });
+
+ // append muxed segments to their respective native buffers as
+ // soon as they are available
+ _this.transmuxer_ = new TransmuxWorker();
+ _this.transmuxer_.postMessage({ action: 'init', options: options });
+
+ _this.transmuxer_.onmessage = function (event) {
+ if (event.data.action === 'data') {
+ return _this.data_(event);
+ }
+
+ if (event.data.action === 'done') {
+ return _this.done_(event);
+ }
+
+ if (event.data.action === 'gopInfo') {
+ return _this.appendGopInfo_(event);
+ }
+ };
+
+ // this timestampOffset is a property with the side-effect of resetting
+ // baseMediaDecodeTime in the transmuxer on the setter
+ Object.defineProperty(_this, 'timestampOffset', {
+ get: function get$$1() {
+ return this.timestampOffset_;
+ },
+ set: function set$$1(val) {
+ if (typeof val === 'number' && val >= 0) {
+ this.timestampOffset_ = val;
+ this.appendAudioInitSegment_ = true;
+
+ // reset gop buffer on timestampoffset as this signals a change in timeline
+ this.gopBuffer_.length = 0;
+ this.timeMapping_ = 0;
+
+ // We have to tell the transmuxer to set the baseMediaDecodeTime to
+ // the desired timestampOffset for the next segment
+ this.transmuxer_.postMessage({
+ action: 'setTimestampOffset',
+ timestampOffset: val
+ });
+ }
+ }
+ });
+
+ // setting the append window affects both source buffers
+ Object.defineProperty(_this, 'appendWindowStart', {
+ get: function get$$1() {
+ return (this.videoBuffer_ || this.audioBuffer_).appendWindowStart;
+ },
+ set: function set$$1(start) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.appendWindowStart = start;
+ }
+ if (this.audioBuffer_) {
+ this.audioBuffer_.appendWindowStart = start;
+ }
+ }
+ });
+
+ // this buffer is "updating" if either of its native buffers are
+ Object.defineProperty(_this, 'updating', {
+ get: function get$$1() {
+ return !!(this.bufferUpdating_ || !this.audioDisabled_ && this.audioBuffer_ && this.audioBuffer_.updating || this.videoBuffer_ && this.videoBuffer_.updating);
+ }
+ });
+
+ // the buffered property is the intersection of the buffered
+ // ranges of the native source buffers
+ Object.defineProperty(_this, 'buffered', {
+ get: function get$$1() {
+ return buffered(this.videoBuffer_, this.audioBuffer_, this.audioDisabled_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * When we get a data event from the transmuxer
+ * we call this function and handle the data that
+ * was sent to us
+ *
+ * @private
+ * @param {Event} event the data event from the transmuxer
+ */
+
+ createClass$2(VirtualSourceBuffer, [{
+ key: 'data_',
+ value: function data_(event) {
+ var segment = event.data.segment;
+
+ // Cast ArrayBuffer to TypedArray
+ segment.data = new Uint8Array(segment.data, event.data.byteOffset, event.data.byteLength);
+
+ segment.initSegment = new Uint8Array(segment.initSegment.data, segment.initSegment.byteOffset, segment.initSegment.byteLength);
+
+ createTextTracksIfNecessary(this, this.mediaSource_, segment);
+
+ // Add the segments to the pendingBuffers array
+ this.pendingBuffers_.push(segment);
+ return;
+ }
+
+ /**
+ * When we get a done event from the transmuxer
+ * we call this function and we process all
+ * of the pending data that we have been saving in the
+ * data_ function
+ *
+ * @private
+ * @param {Event} event the done event from the transmuxer
+ */
+
+ }, {
+ key: 'done_',
+ value: function done_(event) {
+ // Don't process and append data if the mediaSource is closed
+ if (this.mediaSource_.readyState === 'closed') {
+ this.pendingBuffers_.length = 0;
+ return;
+ }
+
+ // All buffers should have been flushed from the muxer
+ // start processing anything we have received
+ this.processPendingSegments_();
+ return;
+ }
+
+ /**
+ * Create our internal native audio/video source buffers and add
+ * event handlers to them with the following conditions:
+ * 1. they do not already exist on the mediaSource
+ * 2. this VSB has a codec for them
+ *
+ * @private
+ */
+
+ }, {
+ key: 'createRealSourceBuffers_',
+ value: function createRealSourceBuffers_() {
+ var _this2 = this;
+
+ var types = ['audio', 'video'];
+
+ types.forEach(function (type) {
+ // Don't create a SourceBuffer of this type if we don't have a
+ // codec for it
+ if (!_this2[type + 'Codec_']) {
+ return;
+ }
+
+ // Do nothing if a SourceBuffer of this type already exists
+ if (_this2[type + 'Buffer_']) {
+ return;
+ }
+
+ var buffer = null;
+
+ // If the mediasource already has a SourceBuffer for the codec
+ // use that
+ if (_this2.mediaSource_[type + 'Buffer_']) {
+ buffer = _this2.mediaSource_[type + 'Buffer_'];
+ // In multiple audio track cases, the audio source buffer is disabled
+ // on the main VirtualSourceBuffer by the HTMLMediaSource much earlier
+ // than createRealSourceBuffers_ is called to create the second
+ // VirtualSourceBuffer because that happens as a side-effect of
+ // videojs-contrib-hls starting the audioSegmentLoader. As a result,
+ // the audioBuffer is essentially "ownerless" and no one will toggle
+ // the `updating` state back to false once the `updateend` event is received
+ //
+ // Setting `updating` to false manually will work around this
+ // situation and allow work to continue
+ buffer.updating = false;
+ } else {
+ var codecProperty = type + 'Codec_';
+ var mimeType = type + '/mp4;codecs="' + _this2[codecProperty] + '"';
+
+ buffer = makeWrappedSourceBuffer(_this2.mediaSource_.nativeMediaSource_, mimeType);
+
+ _this2.mediaSource_[type + 'Buffer_'] = buffer;
+ }
+
+ _this2[type + 'Buffer_'] = buffer;
+
+ // Wire up the events to the SourceBuffer
+ ['update', 'updatestart', 'updateend'].forEach(function (event) {
+ buffer.addEventListener(event, function () {
+ // if audio is disabled
+ if (type === 'audio' && _this2.audioDisabled_) {
+ return;
+ }
+
+ if (event === 'updateend') {
+ _this2[type + 'Buffer_'].updating = false;
+ }
+
+ var shouldTrigger = types.every(function (t) {
+ // skip checking audio's updating status if audio
+ // is not enabled
+ if (t === 'audio' && _this2.audioDisabled_) {
+ return true;
+ }
+ // if the other type if updating we don't trigger
+ if (type !== t && _this2[t + 'Buffer_'] && _this2[t + 'Buffer_'].updating) {
+ return false;
+ }
+ return true;
+ });
+
+ if (shouldTrigger) {
+ return _this2.trigger(event);
+ }
+ });
+ });
+ });
+ }
+
+ /**
+ * Emulate the native mediasource function, but our function will
+ * send all of the proposed segments to the transmuxer so that we
+ * can transmux them before we append them to our internal
+ * native source buffers in the correct format.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/appendBuffer
+ * @param {Uint8Array} segment the segment to append to the buffer
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(segment) {
+ // Start the internal "updating" state
+ this.bufferUpdating_ = true;
+
+ if (this.audioBuffer_ && this.audioBuffer_.buffered.length) {
+ var audioBuffered = this.audioBuffer_.buffered;
+
+ this.transmuxer_.postMessage({
+ action: 'setAudioAppendStart',
+ appendStart: audioBuffered.end(audioBuffered.length - 1)
+ });
+ }
+
+ if (this.videoBuffer_) {
+ this.transmuxer_.postMessage({
+ action: 'alignGopsWith',
+ gopsToAlignWith: gopsSafeToAlignWith(this.gopBuffer_, this.mediaSource_.player_ ? this.mediaSource_.player_.currentTime() : null, this.timeMapping_)
+ });
+ }
+
+ this.transmuxer_.postMessage({
+ action: 'push',
+ // Send the typed-array of data as an ArrayBuffer so that
+ // it can be sent as a "Transferable" and avoid the costly
+ // memory copy
+ data: segment.buffer,
+
+ // To recreate the original typed-array, we need information
+ // about what portion of the ArrayBuffer it was a view into
+ byteOffset: segment.byteOffset,
+ byteLength: segment.byteLength
+ }, [segment.buffer]);
+ this.transmuxer_.postMessage({ action: 'flush' });
+ }
+
+ /**
+ * Appends gop information (timing and byteLength) received by the transmuxer for the
+ * gops appended in the last call to appendBuffer
+ *
+ * @param {Event} event
+ * The gopInfo event from the transmuxer
+ * @param {Array} event.data.gopInfo
+ * List of gop info to append
+ */
+
+ }, {
+ key: 'appendGopInfo_',
+ value: function appendGopInfo_(event) {
+ this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, event.data.gopInfo, this.safeAppend_);
+ }
+
+ /**
+ * Emulate the native mediasource function and remove parts
+ * of the buffer from any of our internal buffers that exist
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/remove
+ * @param {Double} start position to start the remove at
+ * @param {Double} end position to end the remove at
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.updating = true;
+ this.videoBuffer_.remove(start, end);
+ this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.updating = true;
+ this.audioBuffer_.remove(start, end);
+ }
+
+ // Remove Metadata Cues (id3)
+ removeCuesFromTrack(start, end, this.metadataTrack_);
+
+ // Remove Any Captions
+ if (this.inbandTextTracks_) {
+ for (var track in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
+ }
+ }
+ }
+
+ /**
+ * Process any segments that the muxer has output
+ * Concatenate segments together based on type and append them into
+ * their respective sourceBuffers
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processPendingSegments_',
+ value: function processPendingSegments_() {
+ var sortedSegments = {
+ video: {
+ segments: [],
+ bytes: 0
+ },
+ audio: {
+ segments: [],
+ bytes: 0
+ },
+ captions: [],
+ metadata: []
+ };
+
+ // Sort segments into separate video/audio arrays and
+ // keep track of their total byte lengths
+ sortedSegments = this.pendingBuffers_.reduce(function (segmentObj, segment) {
+ var type = segment.type;
+ var data = segment.data;
+ var initSegment = segment.initSegment;
+
+ segmentObj[type].segments.push(data);
+ segmentObj[type].bytes += data.byteLength;
+
+ segmentObj[type].initSegment = initSegment;
+
+ // Gather any captions into a single array
+ if (segment.captions) {
+ segmentObj.captions = segmentObj.captions.concat(segment.captions);
+ }
+
+ if (segment.info) {
+ segmentObj[type].info = segment.info;
+ }
+
+ // Gather any metadata into a single array
+ if (segment.metadata) {
+ segmentObj.metadata = segmentObj.metadata.concat(segment.metadata);
+ }
+
+ return segmentObj;
+ }, sortedSegments);
+
+ // Create the real source buffers if they don't exist by now since we
+ // finally are sure what tracks are contained in the source
+ if (!this.videoBuffer_ && !this.audioBuffer_) {
+ // Remove any codecs that may have been specified by default but
+ // are no longer applicable now
+ if (sortedSegments.video.bytes === 0) {
+ this.videoCodec_ = null;
+ }
+ if (sortedSegments.audio.bytes === 0) {
+ this.audioCodec_ = null;
+ }
+
+ this.createRealSourceBuffers_();
+ }
+
+ if (sortedSegments.audio.info) {
+ this.mediaSource_.trigger({ type: 'audioinfo', info: sortedSegments.audio.info });
+ }
+ if (sortedSegments.video.info) {
+ this.mediaSource_.trigger({ type: 'videoinfo', info: sortedSegments.video.info });
+ }
+
+ if (this.appendAudioInitSegment_) {
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ sortedSegments.audio.segments.unshift(sortedSegments.audio.initSegment);
+ sortedSegments.audio.bytes += sortedSegments.audio.initSegment.byteLength;
+ }
+ this.appendAudioInitSegment_ = false;
+ }
+
+ var triggerUpdateend = false;
+
+ // Merge multiple video and audio segments into one and append
+ if (this.videoBuffer_ && sortedSegments.video.bytes) {
+ sortedSegments.video.segments.unshift(sortedSegments.video.initSegment);
+ sortedSegments.video.bytes += sortedSegments.video.initSegment.byteLength;
+ this.concatAndAppendSegments_(sortedSegments.video, this.videoBuffer_);
+ // TODO: are video tracks the only ones with text tracks?
+ addTextTrackData(this, sortedSegments.captions, sortedSegments.metadata);
+ } else if (this.videoBuffer_ && (this.audioDisabled_ || !this.audioBuffer_)) {
+ // The transmuxer did not return any bytes of video, meaning it was all trimmed
+ // for gop alignment. Since we have a video buffer and audio is disabled, updateend
+ // will never be triggered by this source buffer, which will cause contrib-hls
+ // to be stuck forever waiting for updateend. If audio is not disabled, updateend
+ // will be triggered by the audio buffer, which will be sent upwards since the video
+ // buffer will not be in an updating state.
+ triggerUpdateend = true;
+ }
+
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.concatAndAppendSegments_(sortedSegments.audio, this.audioBuffer_);
+ }
+
+ this.pendingBuffers_.length = 0;
+
+ if (triggerUpdateend) {
+ this.trigger('updateend');
+ }
+
+ // We are no longer in the internal "updating" state
+ this.bufferUpdating_ = false;
+ }
+
+ /**
+ * Combine all segments into a single Uint8Array and then append them
+ * to the destination buffer
+ *
+ * @param {Object} segmentObj
+ * @param {SourceBuffer} destinationBuffer native source buffer to append data to
+ * @private
+ */
+
+ }, {
+ key: 'concatAndAppendSegments_',
+ value: function concatAndAppendSegments_(segmentObj, destinationBuffer) {
+ var offset = 0;
+ var tempBuffer = void 0;
+
+ if (segmentObj.bytes) {
+ tempBuffer = new Uint8Array(segmentObj.bytes);
+
+ // Combine the individual segments into one large typed-array
+ segmentObj.segments.forEach(function (segment) {
+ tempBuffer.set(segment, offset);
+ offset += segment.byteLength;
+ });
+
+ try {
+ destinationBuffer.updating = true;
+ destinationBuffer.appendBuffer(tempBuffer);
+ } catch (error) {
+ if (this.mediaSource_.player_) {
+ this.mediaSource_.player_.error({
+ code: -3,
+ type: 'APPEND_BUFFER_ERR',
+ message: error.message,
+ originalError: error
+ });
+ }
+ }
+ }
+ }
+
+ /**
+ * Emulate the native mediasource function. abort any soureBuffer
+ * actions and throw out any un-appended data.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/abort
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.videoBuffer_) {
+ this.videoBuffer_.abort();
+ }
+ if (!this.audioDisabled_ && this.audioBuffer_) {
+ this.audioBuffer_.abort();
+ }
+ if (this.transmuxer_) {
+ this.transmuxer_.postMessage({ action: 'reset' });
+ }
+ this.pendingBuffers_.length = 0;
+ this.bufferUpdating_ = false;
+ }
+ }]);
+ return VirtualSourceBuffer;
+ }(videojs$1.EventTarget);
+
+ /**
+ * @file html-media-source.js
+ */
+
+ /**
+ * Our MediaSource implementation in HTML, mimics native
+ * MediaSource where/if possible.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource
+ * @class HtmlMediaSource
+ * @extends videojs.EventTarget
+ */
+
+ var HtmlMediaSource = function (_videojs$EventTarget) {
+ inherits$3(HtmlMediaSource, _videojs$EventTarget);
+
+ function HtmlMediaSource() {
+ classCallCheck$3(this, HtmlMediaSource);
+
+ var _this = possibleConstructorReturn$3(this, (HtmlMediaSource.__proto__ || Object.getPrototypeOf(HtmlMediaSource)).call(this));
+
+ var property = void 0;
+
+ _this.nativeMediaSource_ = new window_1.MediaSource();
+ // delegate to the native MediaSource's methods by default
+ for (property in _this.nativeMediaSource_) {
+ if (!(property in HtmlMediaSource.prototype) && typeof _this.nativeMediaSource_[property] === 'function') {
+ _this[property] = _this.nativeMediaSource_[property].bind(_this.nativeMediaSource_);
+ }
+ }
+
+ // emulate `duration` and `seekable` until seeking can be
+ // handled uniformly for live streams
+ // see https://github.com/w3c/media-source/issues/5
+ _this.duration_ = NaN;
+ Object.defineProperty(_this, 'duration', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return this.duration_;
+ }
+ return this.nativeMediaSource_.duration;
+ },
+ set: function set$$1(duration) {
+ this.duration_ = duration;
+ if (duration !== Infinity) {
+ this.nativeMediaSource_.duration = duration;
+ return;
+ }
+ }
+ });
+ Object.defineProperty(_this, 'seekable', {
+ get: function get$$1() {
+ if (this.duration_ === Infinity) {
+ return videojs$1.createTimeRanges([[0, this.nativeMediaSource_.duration]]);
+ }
+ return this.nativeMediaSource_.seekable;
+ }
+ });
+
+ Object.defineProperty(_this, 'readyState', {
+ get: function get$$1() {
+ return this.nativeMediaSource_.readyState;
+ }
+ });
+
+ Object.defineProperty(_this, 'activeSourceBuffers', {
+ get: function get$$1() {
+ return this.activeSourceBuffers_;
+ }
+ });
+
+ // the list of virtual and native SourceBuffers created by this
+ // MediaSource
+ _this.sourceBuffers = [];
+
+ _this.activeSourceBuffers_ = [];
+
+ /**
+ * update the list of active source buffers based upon various
+ * imformation from HLS and video.js
+ *
+ * @private
+ */
+ _this.updateActiveSourceBuffers_ = function () {
+ // Retain the reference but empty the array
+ _this.activeSourceBuffers_.length = 0;
+
+ // If there is only one source buffer, then it will always be active and audio will
+ // be disabled based on the codec of the source buffer
+ if (_this.sourceBuffers.length === 1) {
+ var sourceBuffer = _this.sourceBuffers[0];
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+ sourceBuffer.audioDisabled_ = !sourceBuffer.audioCodec_;
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ return;
+ }
+
+ // There are 2 source buffers, a combined (possibly video only) source buffer and
+ // and an audio only source buffer.
+ // By default, the audio in the combined virtual source buffer is enabled
+ // and the audio-only source buffer (if it exists) is disabled.
+ var disableCombined = false;
+ var disableAudioOnly = true;
+
+ // TODO: maybe we can store the sourcebuffers on the track objects?
+ // safari may do something like this
+ for (var i = 0; i < _this.player_.audioTracks().length; i++) {
+ var track = _this.player_.audioTracks()[i];
+
+ if (track.enabled && track.kind !== 'main') {
+ // The enabled track is an alternate audio track so disable the audio in
+ // the combined source buffer and enable the audio-only source buffer.
+ disableCombined = true;
+ disableAudioOnly = false;
+ break;
+ }
+ }
+
+ _this.sourceBuffers.forEach(function (sourceBuffer, index) {
+ /* eslinst-disable */
+ // TODO once codecs are required, we can switch to using the codecs to determine
+ // what stream is the video stream, rather than relying on videoTracks
+ /* eslinst-enable */
+
+ sourceBuffer.appendAudioInitSegment_ = true;
+
+ if (sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // combined
+ sourceBuffer.audioDisabled_ = disableCombined;
+ } else if (sourceBuffer.videoCodec_ && !sourceBuffer.audioCodec_) {
+ // If the "combined" source buffer is video only, then we do not want
+ // disable the audio-only source buffer (this is mostly for demuxed
+ // audio and video hls)
+ sourceBuffer.audioDisabled_ = true;
+ disableAudioOnly = false;
+ } else if (!sourceBuffer.videoCodec_ && sourceBuffer.audioCodec_) {
+ // audio only
+ // In the case of audio only with alternate audio and disableAudioOnly is true
+ // this means we want to disable the audio on the alternate audio sourcebuffer
+ // but not the main "combined" source buffer. The "combined" source buffer is
+ // always at index 0, so this ensures audio won't be disabled in both source
+ // buffers.
+ sourceBuffer.audioDisabled_ = index ? disableAudioOnly : !disableAudioOnly;
+ if (sourceBuffer.audioDisabled_) {
+ return;
+ }
+ }
+
+ _this.activeSourceBuffers_.push(sourceBuffer);
+ });
+ };
+
+ _this.onPlayerMediachange_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ sourceBuffer.appendAudioInitSegment_ = true;
+ });
+ };
+
+ _this.onHlsReset_ = function () {
+ _this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.postMessage({ action: 'resetCaptions' });
+ }
+ });
+ };
+
+ _this.onHlsSegmentTimeMapping_ = function (event) {
+ _this.sourceBuffers.forEach(function (buffer) {
+ return buffer.timeMapping_ = event.mapping;
+ });
+ };
+
+ // Re-emit MediaSource events on the polyfill
+ ['sourceopen', 'sourceclose', 'sourceended'].forEach(function (eventName) {
+ this.nativeMediaSource_.addEventListener(eventName, this.trigger.bind(this));
+ }, _this);
+
+ // capture the associated player when the MediaSource is
+ // successfully attached
+ _this.on('sourceopen', function (event) {
+ // Get the player this MediaSource is attached to
+ var video = document_1.querySelector('[src="' + _this.url_ + '"]');
+
+ if (!video) {
+ return;
+ }
+
+ _this.player_ = videojs$1(video.parentNode);
+
+ // hls-reset is fired by videojs.Hls on to the tech after the main SegmentLoader
+ // resets its state and flushes the buffer
+ _this.player_.tech_.on('hls-reset', _this.onHlsReset_);
+ // hls-segment-time-mapping is fired by videojs.Hls on to the tech after the main
+ // SegmentLoader inspects an MTS segment and has an accurate stream to display
+ // time mapping
+ _this.player_.tech_.on('hls-segment-time-mapping', _this.onHlsSegmentTimeMapping_);
+
+ if (_this.player_.audioTracks && _this.player_.audioTracks()) {
+ _this.player_.audioTracks().on('change', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('addtrack', _this.updateActiveSourceBuffers_);
+ _this.player_.audioTracks().on('removetrack', _this.updateActiveSourceBuffers_);
+ }
+
+ _this.player_.on('mediachange', _this.onPlayerMediachange_);
+ });
+
+ _this.on('sourceended', function (event) {
+ var duration = durationOfVideo(_this.duration);
+
+ for (var i = 0; i < _this.sourceBuffers.length; i++) {
+ var sourcebuffer = _this.sourceBuffers[i];
+ var cues = sourcebuffer.metadataTrack_ && sourcebuffer.metadataTrack_.cues;
+
+ if (cues && cues.length) {
+ cues[cues.length - 1].endTime = duration;
+ }
+ }
+ });
+
+ // explicitly terminate any WebWorkers that were created
+ // by SourceHandlers
+ _this.on('sourceclose', function (event) {
+ this.sourceBuffers.forEach(function (sourceBuffer) {
+ if (sourceBuffer.transmuxer_) {
+ sourceBuffer.transmuxer_.terminate();
+ }
+ });
+
+ this.sourceBuffers.length = 0;
+ if (!this.player_) {
+ return;
+ }
+
+ if (this.player_.audioTracks && this.player_.audioTracks()) {
+ this.player_.audioTracks().off('change', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('addtrack', this.updateActiveSourceBuffers_);
+ this.player_.audioTracks().off('removetrack', this.updateActiveSourceBuffers_);
+ }
+
+ // We can only change this if the player hasn't been disposed of yet
+ // because `off` eventually tries to use the el_ property. If it has
+ // been disposed of, then don't worry about it because there are no
+ // event handlers left to unbind anyway
+ if (this.player_.el_) {
+ this.player_.off('mediachange', this.onPlayerMediachange_);
+ this.player_.tech_.off('hls-reset', this.onHlsReset_);
+ this.player_.tech_.off('hls-segment-time-mapping', this.onHlsSegmentTimeMapping_);
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * Add a range that that can now be seeked to.
+ *
+ * @param {Double} start where to start the addition
+ * @param {Double} end where to end the addition
+ * @private
+ */
+
+ createClass$2(HtmlMediaSource, [{
+ key: 'addSeekableRange_',
+ value: function addSeekableRange_(start, end) {
+ var error = void 0;
+
+ if (this.duration !== Infinity) {
+ error = new Error('MediaSource.addSeekableRange() can only be invoked ' + 'when the duration is Infinity');
+ error.name = 'InvalidStateError';
+ error.code = 11;
+ throw error;
+ }
+
+ if (end > this.nativeMediaSource_.duration || isNaN(this.nativeMediaSource_.duration)) {
+ this.nativeMediaSource_.duration = end;
+ }
+ }
+
+ /**
+ * Add a source buffer to the media source.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/addSourceBuffer
+ * @param {String} type the content-type of the content
+ * @return {Object} the created source buffer
+ */
+
+ }, {
+ key: 'addSourceBuffer',
+ value: function addSourceBuffer(type) {
+ var buffer = void 0;
+ var parsedType = parseContentType(type);
+
+ // Create a VirtualSourceBuffer to transmux MPEG-2 transport
+ // stream segments into fragmented MP4s
+ if (/^(video|audio)\/mp2t$/i.test(parsedType.type)) {
+ var codecs = [];
+
+ if (parsedType.parameters && parsedType.parameters.codecs) {
+ codecs = parsedType.parameters.codecs.split(',');
+ codecs = translateLegacyCodecs(codecs);
+ codecs = codecs.filter(function (codec) {
+ return isAudioCodec(codec) || isVideoCodec(codec);
+ });
+ }
+
+ if (codecs.length === 0) {
+ codecs = ['avc1.4d400d', 'mp4a.40.2'];
+ }
+
+ buffer = new VirtualSourceBuffer(this, codecs);
+
+ if (this.sourceBuffers.length !== 0) {
+ // If another VirtualSourceBuffer already exists, then we are creating a
+ // SourceBuffer for an alternate audio track and therefore we know that
+ // the source has both an audio and video track.
+ // That means we should trigger the manual creation of the real
+ // SourceBuffers instead of waiting for the transmuxer to return data
+ this.sourceBuffers[0].createRealSourceBuffers_();
+ buffer.createRealSourceBuffers_();
+
+ // Automatically disable the audio on the first source buffer if
+ // a second source buffer is ever created
+ this.sourceBuffers[0].audioDisabled_ = true;
+ }
+ } else {
+ // delegate to the native implementation
+ buffer = this.nativeMediaSource_.addSourceBuffer(type);
+ }
+
+ this.sourceBuffers.push(buffer);
+ return buffer;
+ }
+ }]);
+ return HtmlMediaSource;
+ }(videojs$1.EventTarget);
+
+ /**
+ * @file videojs-contrib-media-sources.js
+ */
+ var urlCount = 0;
+
+ // ------------
+ // Media Source
+ // ------------
+
+ // store references to the media sources so they can be connected
+ // to a video element (a swf object)
+ // TODO: can we store this somewhere local to this module?
+ videojs$1.mediaSources = {};
+
+ /**
+ * Provide a method for a swf object to notify JS that a
+ * media source is now open.
+ *
+ * @param {String} msObjectURL string referencing the MSE Object URL
+ * @param {String} swfId the swf id
+ */
+ var open = function open(msObjectURL, swfId) {
+ var mediaSource = videojs$1.mediaSources[msObjectURL];
+
+ if (mediaSource) {
+ mediaSource.trigger({ type: 'sourceopen', swfId: swfId });
+ } else {
+ throw new Error('Media Source not found (Video.js)');
+ }
+ };
+
+ /**
+ * Check to see if the native MediaSource object exists and supports
+ * an MP4 container with both H.264 video and AAC-LC audio.
+ *
+ * @return {Boolean} if native media sources are supported
+ */
+ var supportsNativeMediaSources = function supportsNativeMediaSources() {
+ return !!window_1.MediaSource && !!window_1.MediaSource.isTypeSupported && window_1.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"');
+ };
+
+ /**
+ * An emulation of the MediaSource API so that we can support
+ * native and non-native functionality. returns an instance of
+ * HtmlMediaSource.
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/MediaSource
+ */
+ var MediaSource = function MediaSource() {
+ this.MediaSource = {
+ open: open,
+ supportsNativeMediaSources: supportsNativeMediaSources
+ };
+
+ if (supportsNativeMediaSources()) {
+ return new HtmlMediaSource();
+ }
+
+ throw new Error('Cannot use create a virtual MediaSource for this video');
+ };
+
+ MediaSource.open = open;
+ MediaSource.supportsNativeMediaSources = supportsNativeMediaSources;
+
+ /**
+ * A wrapper around the native URL for our MSE object
+ * implementation, this object is exposed under videojs.URL
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/URL
+ */
+ var URL$1 = {
+ /**
+ * A wrapper around the native createObjectURL for our objects.
+ * This function maps a native or emulated mediaSource to a blob
+ * url so that it can be loaded into video.js
+ *
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
+ * @param {MediaSource} object the object to create a blob url to
+ */
+ createObjectURL: function createObjectURL(object) {
+ var objectUrlPrefix = 'blob:vjs-media-source/';
+ var url = void 0;
+
+ // use the native MediaSource to generate an object URL
+ if (object instanceof HtmlMediaSource) {
+ url = window_1.URL.createObjectURL(object.nativeMediaSource_);
+ object.url_ = url;
+ return url;
+ }
+ // if the object isn't an emulated MediaSource, delegate to the
+ // native implementation
+ if (!(object instanceof HtmlMediaSource)) {
+ url = window_1.URL.createObjectURL(object);
+ object.url_ = url;
+ return url;
+ }
+
+ // build a URL that can be used to map back to the emulated
+ // MediaSource
+ url = objectUrlPrefix + urlCount;
+
+ urlCount++;
+
+ // setup the mapping back to object
+ videojs$1.mediaSources[url] = object;
+
+ return url;
+ }
+ };
+
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+
+ var EventTarget$1$1 = videojs$1.EventTarget,
+ mergeOptions$2 = videojs$1.mergeOptions;
+
+ /**
+ * Returns a new master manifest that is the result of merging an updated master manifest
+ * into the original version.
+ *
+ * @param {Object} oldMaster
+ * The old parsed mpd object
+ * @param {Object} newMaster
+ * The updated parsed mpd object
+ * @return {Object}
+ * A new object representing the original master manifest with the updated media
+ * playlists merged in
+ */
+
+ var updateMaster$1 = function updateMaster$$1(oldMaster, newMaster) {
+ var update = mergeOptions$2(oldMaster, {
+ // These are top level properties that can be updated
+ duration: newMaster.duration,
+ minimumUpdatePeriod: newMaster.minimumUpdatePeriod
+ });
+
+ // First update the playlists in playlist list
+ for (var i = 0; i < newMaster.playlists.length; i++) {
+ var playlistUpdate = updateMaster(update, newMaster.playlists[i]);
+
+ if (playlistUpdate) {
+ update = playlistUpdate;
+ }
+ }
+
+ // Then update media group playlists
+ forEachMediaGroup(newMaster, function (properties, type, group, label) {
+ if (properties.playlists && properties.playlists.length) {
+ var uri = properties.playlists[0].uri;
+ var _playlistUpdate = updateMaster(update, properties.playlists[0]);
+
+ if (_playlistUpdate) {
+ update = _playlistUpdate;
+ // update the playlist reference within media groups
+ update.mediaGroups[type][group][label].playlists[0] = update.playlists[uri];
+ }
+ }
+ });
+
+ return update;
+ };
+
+ var DashPlaylistLoader = function (_EventTarget) {
+ inherits$3(DashPlaylistLoader, _EventTarget);
+
+ // DashPlaylistLoader must accept either a src url or a playlist because subsequent
+ // playlist loader setups from media groups will expect to be able to pass a playlist
+ // (since there aren't external URLs to media playlists with DASH)
+ function DashPlaylistLoader(srcUrlOrPlaylist, hls, withCredentials, masterPlaylistLoader) {
+ classCallCheck$3(this, DashPlaylistLoader);
+
+ var _this = possibleConstructorReturn$3(this, (DashPlaylistLoader.__proto__ || Object.getPrototypeOf(DashPlaylistLoader)).call(this));
+
+ _this.hls_ = hls;
+ _this.withCredentials = withCredentials;
+
+ if (!srcUrlOrPlaylist) {
+ throw new Error('A non-empty playlist URL or playlist is required');
+ }
+
+ // event naming?
+ _this.on('minimumUpdatePeriod', function () {
+ _this.refreshXml_();
+ });
+
+ // live playlist staleness timeout
+ _this.on('mediaupdatetimeout', function () {
+ _this.refreshMedia_();
+ });
+
+ // initialize the loader state
+ if (typeof srcUrlOrPlaylist === 'string') {
+ _this.srcUrl = srcUrlOrPlaylist;
+ _this.state = 'HAVE_NOTHING';
+ return possibleConstructorReturn$3(_this);
+ }
+
+ _this.masterPlaylistLoader_ = masterPlaylistLoader;
+
+ _this.state = 'HAVE_METADATA';
+ _this.started = true;
+ // we only should have one playlist so select it
+ _this.media(srcUrlOrPlaylist);
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window_1.setTimeout(function () {
+ _this.trigger('loadedmetadata');
+ }, 0);
+ return _this;
+ }
+
+ createClass$2(DashPlaylistLoader, [{
+ key: 'dispose',
+ value: function dispose() {
+ this.stopRequest();
+ window_1.clearTimeout(this.mediaUpdateTimeout);
+ }
+ }, {
+ key: 'stopRequest',
+ value: function stopRequest() {
+ if (this.request) {
+ var oldRequest = this.request;
+
+ this.request = null;
+ oldRequest.onreadystatechange = null;
+ oldRequest.abort();
+ }
+ }
+ }, {
+ key: 'media',
+ value: function media(playlist) {
+ // getter
+ if (!playlist) {
+ return this.media_;
+ }
+
+ // setter
+ if (this.state === 'HAVE_NOTHING') {
+ throw new Error('Cannot switch media playlist from ' + this.state);
+ }
+
+ var startingState = this.state;
+
+ // find the playlist object if the target playlist has been specified by URI
+ if (typeof playlist === 'string') {
+ if (!this.master.playlists[playlist]) {
+ throw new Error('Unknown playlist URI: ' + playlist);
+ }
+ playlist = this.master.playlists[playlist];
+ }
+
+ var mediaChange = !this.media_ || playlist.uri !== this.media_.uri;
+
+ this.state = 'HAVE_METADATA';
+
+ // switching to the active playlist is a no-op
+ if (!mediaChange) {
+ return;
+ }
+
+ // switching from an already loaded playlist
+ if (this.media_) {
+ this.trigger('mediachanging');
+ }
+
+ this.media_ = playlist;
+
+ this.refreshMedia_();
+
+ // trigger media change if the active media has been updated
+ if (startingState !== 'HAVE_MASTER') {
+ this.trigger('mediachange');
+ }
+ }
+ }, {
+ key: 'pause',
+ value: function pause() {
+ this.stopRequest();
+ if (this.state === 'HAVE_NOTHING') {
+ // If we pause the loader before any data has been retrieved, its as if we never
+ // started, so reset to an unstarted state.
+ this.started = false;
+ }
+ }
+ }, {
+ key: 'load',
+ value: function load() {
+ // because the playlists are internal to the manifest, load should either load the
+ // main manifest, or do nothing but trigger an event
+ if (!this.started) {
+ this.start();
+ return;
+ }
+
+ this.trigger('loadedplaylist');
+ }
+
+ /**
+ * Parses the master xml string and updates playlist uri references
+ *
+ * @return {Object}
+ * The parsed mpd manifest object
+ */
+
+ }, {
+ key: 'parseMasterXml',
+ value: function parseMasterXml() {
+ var master = parse(this.masterXml_, {
+ manifestUri: this.srcUrl,
+ clientOffset: this.clientOffset_
+ });
+
+ master.uri = this.srcUrl;
+
+ // Set up phony URIs for the playlists since we won't have external URIs for DASH
+ // but reference playlists by their URI throughout the project
+ // TODO: Should we create the dummy uris in mpd-parser as well (leaning towards yes).
+ for (var i = 0; i < master.playlists.length; i++) {
+ var phonyUri = 'placeholder-uri-' + i;
+
+ master.playlists[i].uri = phonyUri;
+ // set up by URI references
+ master.playlists[phonyUri] = master.playlists[i];
+ }
+
+ // set up phony URIs for the media group playlists since we won't have external
+ // URIs for DASH but reference playlists by their URI throughout the project
+ forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
+ if (properties.playlists && properties.playlists.length) {
+ var _phonyUri = 'placeholder-uri-' + mediaType + '-' + groupKey + '-' + labelKey;
+
+ properties.playlists[0].uri = _phonyUri;
+ // setup URI references
+ master.playlists[_phonyUri] = properties.playlists[0];
+ }
+ });
+
+ setupMediaPlaylists(master);
+ resolveMediaGroupUris(master);
+
+ return master;
+ }
+ }, {
+ key: 'start',
+ value: function start() {
+ var _this2 = this;
+
+ this.started = true;
+
+ // request the specified URL
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this2.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this2.request = null;
+
+ if (error) {
+ _this2.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this2.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this2.state === 'HAVE_NOTHING') {
+ _this2.started = false;
+ }
+ return _this2.trigger('error');
+ }
+
+ _this2.masterXml_ = req.responseText;
+
+ if (req.responseHeaders && req.responseHeaders.date) {
+ _this2.masterLoaded_ = Date.parse(req.responseHeaders.date);
+ } else {
+ _this2.masterLoaded_ = Date.now();
+ }
+
+ _this2.syncClientServerClock_(_this2.onClientServerClockSync_.bind(_this2));
+ });
+ }
+
+ /**
+ * Parses the master xml for UTCTiming node to sync the client clock to the server
+ * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
+ *
+ * @param {Function} done
+ * Function to call when clock sync has completed
+ */
+
+ }, {
+ key: 'syncClientServerClock_',
+ value: function syncClientServerClock_(done) {
+ var _this3 = this;
+
+ var utcTiming = parseUTCTiming(this.masterXml_);
+
+ // No UTCTiming element found in the mpd. Use Date header from mpd request as the
+ // server clock
+ if (utcTiming === null) {
+ this.clientOffset_ = this.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ if (utcTiming.method === 'DIRECT') {
+ this.clientOffset_ = utcTiming.value - Date.now();
+ return done();
+ }
+
+ this.request = this.hls_.xhr({
+ uri: resolveUrl$1(this.srcUrl, utcTiming.value),
+ method: utcTiming.method,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this3.request) {
+ return;
+ }
+
+ if (error) {
+ // sync request failed, fall back to using date header from mpd
+ // TODO: log warning
+ _this3.clientOffset_ = _this3.masterLoaded_ - Date.now();
+ return done();
+ }
+
+ var serverTime = void 0;
+
+ if (utcTiming.method === 'HEAD') {
+ if (!req.responseHeaders || !req.responseHeaders.date) {
+ // expected date header not preset, fall back to using date header from mpd
+ // TODO: log warning
+ serverTime = _this3.masterLoaded_;
+ } else {
+ serverTime = Date.parse(req.responseHeaders.date);
+ }
+ } else {
+ serverTime = Date.parse(req.responseText);
+ }
+
+ _this3.clientOffset_ = serverTime - Date.now();
+
+ done();
+ });
+ }
+
+ /**
+ * Handler for after client/server clock synchronization has happened. Sets up
+ * xml refresh timer if specificed by the manifest.
+ */
+
+ }, {
+ key: 'onClientServerClockSync_',
+ value: function onClientServerClockSync_() {
+ var _this4 = this;
+
+ this.master = this.parseMasterXml();
+
+ this.state = 'HAVE_MASTER';
+
+ this.trigger('loadedplaylist');
+
+ if (!this.media_) {
+ // no media playlist was specifically selected so start
+ // from the first listed one
+ this.media(this.master.playlists[0]);
+ }
+ // trigger loadedmetadata to resolve setup of media groups
+ // trigger async to mimic behavior of HLS, where it must request a playlist
+ window_1.setTimeout(function () {
+ _this4.trigger('loadedmetadata');
+ }, 0);
+
+ // TODO: minimumUpdatePeriod can have a value of 0. Currently the manifest will not
+ // be refreshed when this is the case. The inter-op guide says that when the
+ // minimumUpdatePeriod is 0, the manifest should outline all currently available
+ // segments, but future segments may require an update. I think a good solution
+ // would be to update the manifest at the same rate that the media playlists
+ // are "refreshed", i.e. every targetDuration.
+ if (this.master.minimumUpdatePeriod) {
+ window_1.setTimeout(function () {
+ _this4.trigger('minimumUpdatePeriod');
+ }, this.master.minimumUpdatePeriod);
+ }
+ }
+
+ /**
+ * Sends request to refresh the master xml and updates the parsed master manifest
+ * TODO: Does the client offset need to be recalculated when the xml is refreshed?
+ */
+
+ }, {
+ key: 'refreshXml_',
+ value: function refreshXml_() {
+ var _this5 = this;
+
+ this.request = this.hls_.xhr({
+ uri: this.srcUrl,
+ withCredentials: this.withCredentials
+ }, function (error, req) {
+ // disposed
+ if (!_this5.request) {
+ return;
+ }
+
+ // clear the loader's request reference
+ _this5.request = null;
+
+ if (error) {
+ _this5.error = {
+ status: req.status,
+ message: 'DASH playlist request error at URL: ' + _this5.srcUrl,
+ responseText: req.responseText,
+ // MEDIA_ERR_NETWORK
+ code: 2
+ };
+ if (_this5.state === 'HAVE_NOTHING') {
+ _this5.started = false;
+ }
+ return _this5.trigger('error');
+ }
+
+ _this5.masterXml_ = req.responseText;
+
+ var newMaster = _this5.parseMasterXml();
+
+ _this5.master = updateMaster$1(_this5.master, newMaster);
+
+ window_1.setTimeout(function () {
+ _this5.trigger('minimumUpdatePeriod');
+ }, _this5.master.minimumUpdatePeriod);
+ });
+ }
+
+ /**
+ * Refreshes the media playlist by re-parsing the master xml and updating playlist
+ * references. If this is an alternate loader, the updated parsed manifest is retrieved
+ * from the master loader.
+ */
+
+ }, {
+ key: 'refreshMedia_',
+ value: function refreshMedia_() {
+ var _this6 = this;
+
+ var oldMaster = void 0;
+ var newMaster = void 0;
+
+ if (this.masterPlaylistLoader_) {
+ oldMaster = this.masterPlaylistLoader_.master;
+ newMaster = this.masterPlaylistLoader_.parseMasterXml();
+ } else {
+ oldMaster = this.master;
+ newMaster = this.parseMasterXml();
+ }
+
+ var updatedMaster = updateMaster$1(oldMaster, newMaster);
+
+ if (updatedMaster) {
+ if (this.masterPlaylistLoader_) {
+ this.masterPlaylistLoader_.master = updatedMaster;
+ } else {
+ this.master = updatedMaster;
+ }
+ this.media_ = updatedMaster.playlists[this.media_.uri];
+ } else {
+ this.trigger('playlistunchanged');
+ }
+
+ if (!this.media().endList) {
+ this.mediaUpdateTimeout = window_1.setTimeout(function () {
+ _this6.trigger('mediaupdatetimeout');
+ }, refreshDelay(this.media(), !!updatedMaster));
+ }
+
+ this.trigger('loadedplaylist');
+ }
+ }]);
+ return DashPlaylistLoader;
+ }(EventTarget$1$1);
+
+ var logger = function logger(source) {
+ if (videojs$1.log.debug) {
+ return videojs$1.log.debug.bind(videojs$1, 'VHS:', source + ' >');
+ }
+
+ return function () {};
+ };
+
+ function noop$1() {}
+
+ /**
+ * @file source-updater.js
+ */
+
+ /**
+ * A queue of callbacks to be serialized and applied when a
+ * MediaSource and its associated SourceBuffers are not in the
+ * updating state. It is used by the segment loader to update the
+ * underlying SourceBuffers when new data is loaded, for instance.
+ *
+ * @class SourceUpdater
+ * @param {MediaSource} mediaSource the MediaSource to create the
+ * SourceBuffer from
+ * @param {String} mimeType the desired MIME type of the underlying
+ * SourceBuffer
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer is
+ * added to the media source
+ */
+
+ var SourceUpdater = function () {
+ function SourceUpdater(mediaSource, mimeType, type, sourceBufferEmitter) {
+ classCallCheck$3(this, SourceUpdater);
+
+ this.callbacks_ = [];
+ this.pendingCallback_ = null;
+ this.timestampOffset_ = 0;
+ this.mediaSource = mediaSource;
+ this.processedAppend_ = false;
+ this.type_ = type;
+ this.mimeType_ = mimeType;
+ this.logger_ = logger('SourceUpdater[' + type + '][' + mimeType + ']');
+
+ if (mediaSource.readyState === 'closed') {
+ mediaSource.addEventListener('sourceopen', this.createSourceBuffer_.bind(this, mimeType, sourceBufferEmitter));
+ } else {
+ this.createSourceBuffer_(mimeType, sourceBufferEmitter);
+ }
+ }
+
+ createClass$2(SourceUpdater, [{
+ key: 'createSourceBuffer_',
+ value: function createSourceBuffer_(mimeType, sourceBufferEmitter) {
+ var _this = this;
+
+ this.sourceBuffer_ = this.mediaSource.addSourceBuffer(mimeType);
+
+ this.logger_('created SourceBuffer');
+
+ if (sourceBufferEmitter) {
+ sourceBufferEmitter.trigger('sourcebufferadded');
+
+ if (this.mediaSource.sourceBuffers.length < 2) {
+ // There's another source buffer we must wait for before we can start updating
+ // our own (or else we can get into a bad state, i.e., appending video/audio data
+ // before the other video/audio source buffer is available and leading to a video
+ // or audio only buffer).
+ sourceBufferEmitter.on('sourcebufferadded', function () {
+ _this.start_();
+ });
+ return;
+ }
+ }
+
+ this.start_();
+ }
+ }, {
+ key: 'start_',
+ value: function start_() {
+ var _this2 = this;
+
+ this.started_ = true;
+
+ // run completion handlers and process callbacks as updateend
+ // events fire
+ this.onUpdateendCallback_ = function () {
+ var pendingCallback = _this2.pendingCallback_;
+
+ _this2.pendingCallback_ = null;
+
+ _this2.logger_('buffered [' + printableRange(_this2.buffered()) + ']');
+
+ if (pendingCallback) {
+ pendingCallback();
+ }
+
+ _this2.runCallback_();
+ };
+
+ this.sourceBuffer_.addEventListener('updateend', this.onUpdateendCallback_);
+
+ this.runCallback_();
+ }
+
+ /**
+ * Aborts the current segment and resets the segment parser.
+ *
+ * @param {Function} done function to call when done
+ * @see http://w3c.github.io/media-source/#widl-SourceBuffer-abort-void
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort(done) {
+ var _this3 = this;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this3.sourceBuffer_.abort();
+ }, done);
+ }
+ }
+
+ /**
+ * Queue an update to append an ArrayBuffer.
+ *
+ * @param {ArrayBuffer} bytes
+ * @param {Function} done the function to call when done
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
+ */
+
+ }, {
+ key: 'appendBuffer',
+ value: function appendBuffer(bytes, done) {
+ var _this4 = this;
+
+ this.processedAppend_ = true;
+ this.queueCallback_(function () {
+ _this4.sourceBuffer_.appendBuffer(bytes);
+ }, done);
+ }
+
+ /**
+ * Indicates what TimeRanges are buffered in the managed SourceBuffer.
+ *
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-buffered
+ */
+
+ }, {
+ key: 'buffered',
+ value: function buffered() {
+ if (!this.sourceBuffer_) {
+ return videojs$1.createTimeRanges();
+ }
+ return this.sourceBuffer_.buffered;
+ }
+
+ /**
+ * Queue an update to remove a time range from the buffer.
+ *
+ * @param {Number} start where to start the removal
+ * @param {Number} end where to end the removal
+ * @param {Function} [done=noop] optional callback to be executed when the remove
+ * operation is complete
+ * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ var _this5 = this;
+
+ var done = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : noop$1;
+
+ if (this.processedAppend_) {
+ this.queueCallback_(function () {
+ _this5.logger_('remove [' + start + ' => ' + end + ']');
+ _this5.sourceBuffer_.remove(start, end);
+ }, done);
+ }
+ }
+
+ /**
+ * Whether the underlying sourceBuffer is updating or not
+ *
+ * @return {Boolean} the updating status of the SourceBuffer
+ */
+
+ }, {
+ key: 'updating',
+ value: function updating() {
+ return !this.sourceBuffer_ || this.sourceBuffer_.updating || this.pendingCallback_;
+ }
+
+ /**
+ * Set/get the timestampoffset on the SourceBuffer
+ *
+ * @return {Number} the timestamp offset
+ */
+
+ }, {
+ key: 'timestampOffset',
+ value: function timestampOffset(offset) {
+ var _this6 = this;
+
+ if (typeof offset !== 'undefined') {
+ this.queueCallback_(function () {
+ _this6.sourceBuffer_.timestampOffset = offset;
+ });
+ this.timestampOffset_ = offset;
+ }
+ return this.timestampOffset_;
+ }
+
+ /**
+ * Queue a callback to run
+ */
+
+ }, {
+ key: 'queueCallback_',
+ value: function queueCallback_(callback, done) {
+ this.callbacks_.push([callback.bind(this), done]);
+ this.runCallback_();
+ }
+
+ /**
+ * Run a queued callback
+ */
+
+ }, {
+ key: 'runCallback_',
+ value: function runCallback_() {
+ var callbacks = void 0;
+
+ if (!this.updating() && this.callbacks_.length && this.started_) {
+ callbacks = this.callbacks_.shift();
+ this.pendingCallback_ = callbacks[1];
+ callbacks[0]();
+ }
+ }
+
+ /**
+ * dispose of the source updater and the underlying sourceBuffer
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.sourceBuffer_.removeEventListener('updateend', this.onUpdateendCallback_);
+ if (this.sourceBuffer_ && this.mediaSource.readyState === 'open') {
+ this.sourceBuffer_.abort();
+ }
+ }
+ }]);
+ return SourceUpdater;
+ }();
+
+ var Config = {
+ GOAL_BUFFER_LENGTH: 30,
+ MAX_GOAL_BUFFER_LENGTH: 60,
+ GOAL_BUFFER_LENGTH_RATE: 1,
+ // A fudge factor to apply to advertised playlist bitrates to account for
+ // temporary flucations in client bandwidth
+ BANDWIDTH_VARIANCE: 1.2,
+ // How much of the buffer must be filled before we consider upswitching
+ BUFFER_LOW_WATER_LINE: 0,
+ MAX_BUFFER_LOW_WATER_LINE: 30,
+ BUFFER_LOW_WATER_LINE_RATE: 1
+ };
+
+ var REQUEST_ERRORS = {
+ FAILURE: 2,
+ TIMEOUT: -101,
+ ABORTED: -102
+ };
+
+ /**
+ * Turns segment byterange into a string suitable for use in
+ * HTTP Range requests
+ *
+ * @param {Object} byterange - an object with two values defining the start and end
+ * of a byte-range
+ */
+ var byterangeStr = function byterangeStr(byterange) {
+ var byterangeStart = void 0;
+ var byterangeEnd = void 0;
+
+ // `byterangeEnd` is one less than `offset + length` because the HTTP range
+ // header uses inclusive ranges
+ byterangeEnd = byterange.offset + byterange.length - 1;
+ byterangeStart = byterange.offset;
+ return 'bytes=' + byterangeStart + '-' + byterangeEnd;
+ };
+
+ /**
+ * Defines headers for use in the xhr request for a particular segment.
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ */
+ var segmentXhrHeaders = function segmentXhrHeaders(segment) {
+ var headers = {};
+
+ if (segment.byterange) {
+ headers.Range = byterangeStr(segment.byterange);
+ }
+ return headers;
+ };
+
+ /**
+ * Abort all requests
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ */
+ var abortAll = function abortAll(activeXhrs) {
+ activeXhrs.forEach(function (xhr) {
+ xhr.abort();
+ });
+ };
+
+ /**
+ * Gather important bandwidth stats once a request has completed
+ *
+ * @param {Object} request - the XHR request from which to gather stats
+ */
+ var getRequestStats = function getRequestStats(request) {
+ return {
+ bandwidth: request.bandwidth,
+ bytesReceived: request.bytesReceived || 0,
+ roundTripTime: request.roundTripTime || 0
+ };
+ };
+
+ /**
+ * If possible gather bandwidth stats as a request is in
+ * progress
+ *
+ * @param {Event} progressEvent - an event object from an XHR's progress event
+ */
+ var getProgressStats = function getProgressStats(progressEvent) {
+ var request = progressEvent.target;
+ var roundTripTime = Date.now() - request.requestTime;
+ var stats = {
+ bandwidth: Infinity,
+ bytesReceived: 0,
+ roundTripTime: roundTripTime || 0
+ };
+
+ stats.bytesReceived = progressEvent.loaded;
+ // This can result in Infinity if stats.roundTripTime is 0 but that is ok
+ // because we should only use bandwidth stats on progress to determine when
+ // abort a request early due to insufficient bandwidth
+ stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
+
+ return stats;
+ };
+
+ /**
+ * Handle all error conditions in one place and return an object
+ * with all the information
+ *
+ * @param {Error|null} error - if non-null signals an error occured with the XHR
+ * @param {Object} request - the XHR request that possibly generated the error
+ */
+ var handleErrors = function handleErrors(error, request) {
+ if (request.timedout) {
+ return {
+ status: request.status,
+ message: 'HLS request timed-out at URL: ' + request.uri,
+ code: REQUEST_ERRORS.TIMEOUT,
+ xhr: request
+ };
+ }
+
+ if (request.aborted) {
+ return {
+ status: request.status,
+ message: 'HLS request aborted at URL: ' + request.uri,
+ code: REQUEST_ERRORS.ABORTED,
+ xhr: request
+ };
+ }
+
+ if (error) {
+ return {
+ status: request.status,
+ message: 'HLS request errored at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ };
+ }
+
+ return null;
+ };
+
+ /**
+ * Handle responses for key data and convert the key data to the correct format
+ * for the decryption step later
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+ var handleKeyResponse = function handleKeyResponse(segment, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ if (response.byteLength !== 16) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Invalid HLS key at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ var view = new DataView(response);
+
+ segment.key.bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
+ return finishProcessingFn(null, segment);
+ };
+ };
+
+ /**
+ * Handle init-segment responses
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+ var handleInitSegmentResponse = function handleInitSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.map.bytes = new Uint8Array(request.response);
+
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ segment.map.timescales = probe.timescale(segment.map.bytes);
+ segment.map.videoTrackIds = probe.videoTrackIds(segment.map.bytes);
+
+ return finishProcessingFn(null, segment);
+ };
+ };
+
+ /**
+ * Response handler for segment-requests being sure to set the correct
+ * property depending on whether the segment is encryped or not
+ * Also records and keeps track of stats that are used for ABR purposes
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} finishProcessingFn - a callback to execute to continue processing
+ * this request
+ */
+ var handleSegmentResponse = function handleSegmentResponse(segment, captionParser, finishProcessingFn) {
+ return function (error, request) {
+ var response = request.response;
+ var errorObj = handleErrors(error, request);
+ var parsed = void 0;
+
+ if (errorObj) {
+ return finishProcessingFn(errorObj, segment);
+ }
+
+ // stop processing if received empty content
+ if (response.byteLength === 0) {
+ return finishProcessingFn({
+ status: request.status,
+ message: 'Empty HLS segment content at URL: ' + request.uri,
+ code: REQUEST_ERRORS.FAILURE,
+ xhr: request
+ }, segment);
+ }
+
+ segment.stats = getRequestStats(request);
+
+ if (segment.key) {
+ segment.encryptedBytes = new Uint8Array(request.response);
+ } else {
+ segment.bytes = new Uint8Array(request.response);
+ }
+
+ // This is likely an FMP4 and has the init segment.
+ // Run through the CaptionParser in case there are captions.
+ if (segment.map && segment.map.bytes) {
+ // Initialize CaptionParser if it hasn't been yet
+ if (!captionParser.isInitialized()) {
+ captionParser.init();
+ }
+
+ parsed = captionParser.parse(segment.bytes, segment.map.videoTrackIds, segment.map.timescales);
+
+ if (parsed && parsed.captions) {
+ segment.captionStreams = parsed.captionStreams;
+ segment.fmp4Captions = parsed.captions;
+ }
+ }
+
+ return finishProcessingFn(null, segment);
+ };
+ };
+
+ /**
+ * Decrypt the segment via the decryption web worker
+ *
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} doneFn - a callback that is executed after decryption has completed
+ */
+ var decryptSegment = function decryptSegment(decrypter, segment, doneFn) {
+ var decryptionHandler = function decryptionHandler(event) {
+ if (event.data.source === segment.requestId) {
+ decrypter.removeEventListener('message', decryptionHandler);
+ var decrypted = event.data.decrypted;
+
+ segment.bytes = new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength);
+ return doneFn(null, segment);
+ }
+ };
+
+ decrypter.addEventListener('message', decryptionHandler);
+
+ // this is an encrypted segment
+ // incrementally decrypt the segment
+ decrypter.postMessage(createTransferableMessage({
+ source: segment.requestId,
+ encrypted: segment.encryptedBytes,
+ key: segment.key.bytes,
+ iv: segment.key.iv
+ }), [segment.encryptedBytes.buffer, segment.key.bytes.buffer]);
+ };
+
+ /**
+ * The purpose of this function is to get the most pertinent error from the
+ * array of errors.
+ * For instance if a timeout and two aborts occur, then the aborts were
+ * likely triggered by the timeout so return that error object.
+ */
+ var getMostImportantError = function getMostImportantError(errors) {
+ return errors.reduce(function (prev, err) {
+ return err.code > prev.code ? err : prev;
+ });
+ };
+
+ /**
+ * This function waits for all XHRs to finish (with either success or failure)
+ * before continueing processing via it's callback. The function gathers errors
+ * from each request into a single errors array so that the error status for
+ * each request can be examined later.
+ *
+ * @param {Object} activeXhrs - an object that tracks all XHR requests
+ * @param {WebWorker} decrypter - a WebWorker interface to AES-128 decryption routines
+ * @param {Function} doneFn - a callback that is executed after all resources have been
+ * downloaded and any decryption completed
+ */
+ var waitForCompletion = function waitForCompletion(activeXhrs, decrypter, doneFn) {
+ var errors = [];
+ var count = 0;
+
+ return function (error, segment) {
+ if (error) {
+ // If there are errors, we have to abort any outstanding requests
+ abortAll(activeXhrs);
+ errors.push(error);
+ }
+ count += 1;
+
+ if (count === activeXhrs.length) {
+ // Keep track of when *all* of the requests have completed
+ segment.endOfAllRequests = Date.now();
+
+ if (errors.length > 0) {
+ var worstError = getMostImportantError(errors);
+
+ return doneFn(worstError, segment);
+ }
+ if (segment.encryptedBytes) {
+ return decryptSegment(decrypter, segment, doneFn);
+ }
+ // Otherwise, everything is ready just continue
+ return doneFn(null, segment);
+ }
+ };
+ };
+
+ /**
+ * Simple progress event callback handler that gathers some stats before
+ * executing a provided callback with the `segment` object
+ *
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that is executed each time a progress event
+ * is received
+ * @param {Event} event - the progress event object from XMLHttpRequest
+ */
+ var handleProgress = function handleProgress(segment, progressFn) {
+ return function (event) {
+ segment.stats = videojs$1.mergeOptions(segment.stats, getProgressStats(event));
+
+ // record the time that we receive the first byte of data
+ if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
+ segment.stats.firstBytesReceivedAt = Date.now();
+ }
+
+ return progressFn(event, segment);
+ };
+ };
+
+ /**
+ * Load all resources and does any processing necessary for a media-segment
+ *
+ * Features:
+ * decrypts the media-segment if it has a key uri and an iv
+ * aborts *all* requests if *any* one request fails
+ *
+ * The segment object, at minimum, has the following format:
+ * {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [key]: {
+ * resolvedUri: String
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * iv: {
+ * bytes: Uint32Array
+ * }
+ * },
+ * [map]: {
+ * resolvedUri: String,
+ * [byterange]: {
+ * offset: Number,
+ * length: Number
+ * },
+ * [bytes]: Uint8Array
+ * }
+ * }
+ * ...where [name] denotes optional properties
+ *
+ * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
+ * @param {Object} xhrOptions - the base options to provide to all xhr requests
+ * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
+ * decryption routines
+ * @param {Object} segment - a simplified copy of the segmentInfo object
+ * from SegmentLoader
+ * @param {Function} progressFn - a callback that receives progress events from the main
+ * segment's xhr request
+ * @param {Function} doneFn - a callback that is executed only once all requests have
+ * succeeded or failed
+ * @returns {Function} a function that, when invoked, immediately aborts all
+ * outstanding requests
+ */
+ var mediaSegmentRequest = function mediaSegmentRequest(xhr, xhrOptions, decryptionWorker, captionParser, segment, progressFn, doneFn) {
+ var activeXhrs = [];
+ var finishProcessingFn = waitForCompletion(activeXhrs, decryptionWorker, doneFn);
+
+ // optionally, request the decryption key
+ if (segment.key) {
+ var keyRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.key.resolvedUri,
+ responseType: 'arraybuffer'
+ });
+ var keyRequestCallback = handleKeyResponse(segment, finishProcessingFn);
+ var keyXhr = xhr(keyRequestOptions, keyRequestCallback);
+
+ activeXhrs.push(keyXhr);
+ }
+
+ // optionally, request the associated media init segment
+ if (segment.map && !segment.map.bytes) {
+ var initSegmentOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.map.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment.map)
+ });
+ var initSegmentRequestCallback = handleInitSegmentResponse(segment, captionParser, finishProcessingFn);
+ var initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);
+
+ activeXhrs.push(initSegmentXhr);
+ }
+
+ var segmentRequestOptions = videojs$1.mergeOptions(xhrOptions, {
+ uri: segment.resolvedUri,
+ responseType: 'arraybuffer',
+ headers: segmentXhrHeaders(segment)
+ });
+ var segmentRequestCallback = handleSegmentResponse(segment, captionParser, finishProcessingFn);
+ var segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);
+
+ segmentXhr.addEventListener('progress', handleProgress(segment, progressFn));
+ activeXhrs.push(segmentXhr);
+
+ return function () {
+ return abortAll(activeXhrs);
+ };
+ };
+
+ // Utilities
+
+ /**
+ * Returns the CSS value for the specified property on an element
+ * using `getComputedStyle`. Firefox has a long-standing issue where
+ * getComputedStyle() may return null when running in an iframe with
+ * `display: none`.
+ *
+ * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+ * @param {HTMLElement} el the htmlelement to work on
+ * @param {string} the proprety to get the style for
+ */
+ var safeGetComputedStyle = function safeGetComputedStyle(el, property) {
+ var result = void 0;
+
+ if (!el) {
+ return '';
+ }
+
+ result = window_1.getComputedStyle(el);
+ if (!result) {
+ return '';
+ }
+
+ return result[property];
+ };
+
+ /**
+ * Resuable stable sort function
+ *
+ * @param {Playlists} array
+ * @param {Function} sortFn Different comparators
+ * @function stableSort
+ */
+ var stableSort = function stableSort(array, sortFn) {
+ var newArray = array.slice();
+
+ array.sort(function (left, right) {
+ var cmp = sortFn(left, right);
+
+ if (cmp === 0) {
+ return newArray.indexOf(left) - newArray.indexOf(right);
+ }
+ return cmp;
+ });
+ };
+
+ /**
+ * A comparator function to sort two playlist object by bandwidth.
+ *
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the bandwidth attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the bandwidth of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+ var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {
+ var leftBandwidth = void 0;
+ var rightBandwidth = void 0;
+
+ if (left.attributes.BANDWIDTH) {
+ leftBandwidth = left.attributes.BANDWIDTH;
+ }
+ leftBandwidth = leftBandwidth || window_1.Number.MAX_VALUE;
+ if (right.attributes.BANDWIDTH) {
+ rightBandwidth = right.attributes.BANDWIDTH;
+ }
+ rightBandwidth = rightBandwidth || window_1.Number.MAX_VALUE;
+
+ return leftBandwidth - rightBandwidth;
+ };
+
+ /**
+ * A comparator function to sort two playlist object by resolution (width).
+ * @param {Object} left a media playlist object
+ * @param {Object} right a media playlist object
+ * @return {Number} Greater than zero if the resolution.width attribute of
+ * left is greater than the corresponding attribute of right. Less
+ * than zero if the resolution.width of right is greater than left and
+ * exactly zero if the two are equal.
+ */
+ var comparePlaylistResolution = function comparePlaylistResolution(left, right) {
+ var leftWidth = void 0;
+ var rightWidth = void 0;
+
+ if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
+ leftWidth = left.attributes.RESOLUTION.width;
+ }
+
+ leftWidth = leftWidth || window_1.Number.MAX_VALUE;
+
+ if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+ rightWidth = right.attributes.RESOLUTION.width;
+ }
+
+ rightWidth = rightWidth || window_1.Number.MAX_VALUE;
+
+ // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
+ // have the same media dimensions/ resolution
+ if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
+ return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
+ }
+ return leftWidth - rightWidth;
+ };
+
+ /**
+ * Chooses the appropriate media playlist based on bandwidth and player size
+ *
+ * @param {Object} master
+ * Object representation of the master manifest
+ * @param {Number} playerBandwidth
+ * Current calculated bandwidth of the player
+ * @param {Number} playerWidth
+ * Current width of the player element
+ * @param {Number} playerHeight
+ * Current height of the player element
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+ var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight) {
+ // convert the playlists to an intermediary representation to make comparisons easier
+ var sortedPlaylistReps = master.playlists.map(function (playlist) {
+ var width = void 0;
+ var height = void 0;
+ var bandwidth = void 0;
+
+ width = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
+ height = playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
+ bandwidth = playlist.attributes.BANDWIDTH;
+
+ bandwidth = bandwidth || window_1.Number.MAX_VALUE;
+
+ return {
+ bandwidth: bandwidth,
+ width: width,
+ height: height,
+ playlist: playlist
+ };
+ });
+
+ stableSort(sortedPlaylistReps, function (left, right) {
+ return left.bandwidth - right.bandwidth;
+ });
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+ sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isIncompatible(rep.playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return Playlist.isEnabled(rep.playlist);
+ });
+
+ if (!enabledPlaylistReps.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
+ return !Playlist.isDisabled(rep.playlist);
+ });
+ }
+
+ // filter out any variant that has greater effective bitrate
+ // than the current estimated bandwidth
+ var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {
+ return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;
+ });
+
+ var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1];
+
+ // get all of the renditions with the same (highest) bandwidth
+ // and then taking the very first element
+ var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ // filter out playlists without resolution information
+ var haveResolution = bandwidthPlaylistReps.filter(function (rep) {
+ return rep.width && rep.height;
+ });
+
+ // sort variants by resolution
+ stableSort(haveResolution, function (left, right) {
+ return left.width - right.width;
+ });
+
+ // if we have the exact resolution as the player use it
+ var resolutionBestRepList = haveResolution.filter(function (rep) {
+ return rep.width === playerWidth && rep.height === playerHeight;
+ });
+
+ highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1];
+ // ensure that we pick the highest bandwidth variant that have exact resolution
+ var resolutionBestRep = resolutionBestRepList.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+
+ var resolutionPlusOneList = void 0;
+ var resolutionPlusOneSmallest = void 0;
+ var resolutionPlusOneRep = void 0;
+
+ // find the smallest variant that is larger than the player
+ // if there is no match of exact resolution
+ if (!resolutionBestRep) {
+ resolutionPlusOneList = haveResolution.filter(function (rep) {
+ return rep.width > playerWidth || rep.height > playerHeight;
+ });
+
+ // find all the variants have the same smallest resolution
+ resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {
+ return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;
+ });
+
+ // ensure that we also pick the highest bandwidth variant that
+ // is just-larger-than the video player
+ highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
+ resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {
+ return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
+ })[0];
+ }
+
+ // fallback chain of variants
+ var chosenRep = resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+
+ return chosenRep ? chosenRep.playlist : null;
+ };
+
+ // Playlist Selectors
+
+ /**
+ * Chooses the appropriate media playlist based on the most recent
+ * bandwidth estimate and the player size.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Playlist} the highest bitrate playlist less than the
+ * currently detected bandwidth, accounting for some amount of
+ * bandwidth variance
+ */
+ var lastBandwidthSelector = function lastBandwidthSelector() {
+ return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10), parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10));
+ };
+
+ /**
+ * Chooses the appropriate media playlist based on the potential to rebuffer
+ *
+ * @param {Object} settings
+ * Object of information required to use this selector
+ * @param {Object} settings.master
+ * Object representation of the master manifest
+ * @param {Number} settings.currentTime
+ * The current time of the player
+ * @param {Number} settings.bandwidth
+ * Current measured bandwidth
+ * @param {Number} settings.duration
+ * Duration of the media
+ * @param {Number} settings.segmentDuration
+ * Segment duration to be used in round trip time calculations
+ * @param {Number} settings.timeUntilRebuffer
+ * Time left in seconds until the player has to rebuffer
+ * @param {Number} settings.currentTimeline
+ * The current timeline segments are being loaded from
+ * @param {SyncController} settings.syncController
+ * SyncController for determining if we have a sync point for a given playlist
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The highest bandwidth playlist with the least amount of rebuffering
+ * {Number} return.rebufferingImpact
+ * The amount of time in seconds switching to this playlist will rebuffer. A
+ * negative value means that switching will cause zero rebuffering.
+ */
+ var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {
+ var master = settings.master,
+ currentTime = settings.currentTime,
+ bandwidth = settings.bandwidth,
+ duration$$1 = settings.duration,
+ segmentDuration = settings.segmentDuration,
+ timeUntilRebuffer = settings.timeUntilRebuffer,
+ currentTimeline = settings.currentTimeline,
+ syncController = settings.syncController;
+
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations
+
+ var compatiblePlaylists = master.playlists.filter(function (playlist) {
+ return !Playlist.isIncompatible(playlist);
+ });
+
+ // filter out any playlists that have been disabled manually through the representations
+ // api or blacklisted temporarily due to playback errors.
+ var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
+
+ if (!enabledPlaylists.length) {
+ // if there are no enabled playlists, then they have all been blacklisted or disabled
+ // by the user through the representations api. In this case, ignore blacklisting and
+ // fallback to what the user wants by using playlists the user has not disabled.
+ enabledPlaylists = compatiblePlaylists.filter(function (playlist) {
+ return !Playlist.isDisabled(playlist);
+ });
+ }
+
+ var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
+
+ var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {
+ var syncPoint = syncController.getSyncPoint(playlist, duration$$1, currentTimeline, currentTime);
+ // If there is no sync point for this playlist, switching to it will require a
+ // sync request first. This will double the request time
+ var numRequests = syncPoint ? 1 : 2;
+ var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
+ var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
+
+ return {
+ playlist: playlist,
+ rebufferingImpact: rebufferingImpact
+ };
+ });
+
+ var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {
+ return estimate.rebufferingImpact <= 0;
+ });
+
+ // Sort by bandwidth DESC
+ stableSort(noRebufferingPlaylists, function (a, b) {
+ return comparePlaylistBandwidth(b.playlist, a.playlist);
+ });
+
+ if (noRebufferingPlaylists.length) {
+ return noRebufferingPlaylists[0];
+ }
+
+ stableSort(rebufferingEstimates, function (a, b) {
+ return a.rebufferingImpact - b.rebufferingImpact;
+ });
+
+ return rebufferingEstimates[0] || null;
+ };
+
+ /**
+ * Chooses the appropriate media playlist, which in this case is the lowest bitrate
+ * one with video. If no renditions with video exist, return the lowest audio rendition.
+ *
+ * Expects to be called within the context of an instance of HlsHandler
+ *
+ * @return {Object|null}
+ * {Object} return.playlist
+ * The lowest bitrate playlist that contains a video codec. If no such rendition
+ * exists pick the lowest audio rendition.
+ */
+ var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {
+ // filter out any playlists that have been excluded due to
+ // incompatible configurations or playback errors
+ var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled);
+
+ // Sort ascending by bitrate
+ stableSort(playlists, function (a, b) {
+ return comparePlaylistBandwidth(a, b);
+ });
+
+ // Parse and assume that playlists with no video codec have no video
+ // (this is not necessarily true, although it is generally true).
+ //
+ // If an entire manifest has no valid videos everything will get filtered
+ // out.
+ var playlistsWithVideo = playlists.filter(function (playlist) {
+ return parseCodecs(playlist.attributes.CODECS).videoCodec;
+ });
+
+ return playlistsWithVideo[0] || null;
+ };
+
+ /**
+ * Create captions text tracks on video.js if they do not exist
+ *
+ * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+ * @param {Object} tech the video.js tech
+ * @param {Object} captionStreams the caption streams to create
+ * @private
+ */
+ var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStreams) {
+ for (var trackId in captionStreams) {
+ if (!inbandTextTracks[trackId]) {
+ tech.trigger({ type: 'usage', name: 'hls-608' });
+ var track = tech.textTracks().getTrackById(trackId);
+
+ if (track) {
+ // Resuse an existing track with a CC# id because this was
+ // very likely created by videojs-contrib-hls from information
+ // in the m3u8 for us to use
+ inbandTextTracks[trackId] = track;
+ } else {
+ // Otherwise, create a track with the default `CC#` label and
+ // without a language
+ inbandTextTracks[trackId] = tech.addRemoteTextTrack({
+ kind: 'captions',
+ id: trackId,
+ label: trackId
+ }, false).track;
+ }
+ }
+ }
+ };
+
+ var addCaptionData = function addCaptionData(_ref) {
+ var inbandTextTracks = _ref.inbandTextTracks,
+ captionArray = _ref.captionArray,
+ timestampOffset = _ref.timestampOffset;
+
+ if (!captionArray) {
+ return;
+ }
+
+ var Cue = window.WebKitDataCue || window.VTTCue;
+
+ captionArray.forEach(function (caption) {
+ var track = caption.stream;
+ var startTime = caption.startTime;
+ var endTime = caption.endTime;
+
+ if (!inbandTextTracks[track]) {
+ return;
+ }
+
+ startTime += timestampOffset;
+ endTime += timestampOffset;
+
+ inbandTextTracks[track].addCue(new Cue(startTime, endTime, caption.text));
+ });
+ };
+
+ /**
+ * @file segment-loader.js
+ */
+
+ // in ms
+ var CHECK_BUFFER_DELAY = 500;
+
+ /**
+ * Determines if we should call endOfStream on the media source based
+ * on the state of the buffer or if appened segment was the final
+ * segment in the playlist.
+ *
+ * @param {Object} playlist a media playlist object
+ * @param {Object} mediaSource the MediaSource object
+ * @param {Number} segmentIndex the index of segment we last appended
+ * @returns {Boolean} do we need to call endOfStream on the MediaSource
+ */
+ var detectEndOfStream = function detectEndOfStream(playlist, mediaSource, segmentIndex) {
+ if (!playlist || !mediaSource) {
+ return false;
+ }
+
+ var segments = playlist.segments;
+
+ // determine a few boolean values to help make the branch below easier
+ // to read
+ var appendedLastSegment = segmentIndex === segments.length;
+
+ // if we've buffered to the end of the video, we need to call endOfStream
+ // so that MediaSources can trigger the `ended` event when it runs out of
+ // buffered data instead of waiting for me
+ return playlist.endList && mediaSource.readyState === 'open' && appendedLastSegment;
+ };
+
+ var finite = function finite(num) {
+ return typeof num === 'number' && isFinite(num);
+ };
+
+ var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, newSegmentMedia) {
+ // Although these checks should most likely cover non 'main' types, for now it narrows
+ // the scope of our checks.
+ if (loaderType !== 'main' || !startingMedia || !newSegmentMedia) {
+ return null;
+ }
+
+ if (!newSegmentMedia.containsAudio && !newSegmentMedia.containsVideo) {
+ return 'Neither audio nor video found in segment.';
+ }
+
+ if (startingMedia.containsVideo && !newSegmentMedia.containsVideo) {
+ return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ if (!startingMedia.containsVideo && newSegmentMedia.containsVideo) {
+ return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
+ }
+
+ return null;
+ };
+
+ /**
+ * Calculates a time value that is safe to remove from the back buffer without interupting
+ * playback.
+ *
+ * @param {TimeRange} seekable
+ * The current seekable range
+ * @param {Number} currentTime
+ * The current time of the player
+ * @param {Number} targetDuration
+ * The target duration of the current playlist
+ * @return {Number}
+ * Time that is safe to remove from the back buffer without interupting playback
+ */
+ var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable$$1, currentTime, targetDuration) {
+ var removeToTime = void 0;
+
+ if (seekable$$1.length && seekable$$1.start(0) > 0 && seekable$$1.start(0) < currentTime) {
+ // If we have a seekable range use that as the limit for what can be removed safely
+ removeToTime = seekable$$1.start(0);
+ } else {
+ // otherwise remove anything older than 30 seconds before the current play head
+ removeToTime = currentTime - 30;
+ }
+
+ // Don't allow removing from the buffer within target duration of current time
+ // to avoid the possibility of removing the GOP currently being played which could
+ // cause playback stalls.
+ return Math.min(removeToTime, currentTime - targetDuration);
+ };
+
+ var segmentInfoString = function segmentInfoString(segmentInfo) {
+ var _segmentInfo$segment = segmentInfo.segment,
+ start = _segmentInfo$segment.start,
+ end = _segmentInfo$segment.end,
+ _segmentInfo$playlist = segmentInfo.playlist,
+ seq = _segmentInfo$playlist.mediaSequence,
+ id = _segmentInfo$playlist.id,
+ _segmentInfo$playlist2 = _segmentInfo$playlist.segments,
+ segments = _segmentInfo$playlist2 === undefined ? [] : _segmentInfo$playlist2,
+ index = segmentInfo.mediaIndex,
+ timeline = segmentInfo.timeline;
+
+ return ['appending [' + index + '] of [' + seq + ', ' + (seq + segments.length) + '] from playlist [' + id + ']', '[' + start + ' => ' + end + '] in timeline [' + timeline + ']'].join(' ');
+ };
+
+ /**
+ * An object that manages segment loading and appending.
+ *
+ * @class SegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+ var SegmentLoader = function (_videojs$EventTarget) {
+ inherits$3(SegmentLoader, _videojs$EventTarget);
+
+ function SegmentLoader(settings) {
+ classCallCheck$3(this, SegmentLoader);
+
+ // check pre-conditions
+ var _this = possibleConstructorReturn$3(this, (SegmentLoader.__proto__ || Object.getPrototypeOf(SegmentLoader)).call(this));
+
+ if (!settings) {
+ throw new TypeError('Initialization settings are required');
+ }
+ if (typeof settings.currentTime !== 'function') {
+ throw new TypeError('No currentTime getter specified');
+ }
+ if (!settings.mediaSource) {
+ throw new TypeError('No MediaSource specified');
+ }
+ // public properties
+ _this.bandwidth = settings.bandwidth;
+ _this.throughput = { rate: 0, count: 0 };
+ _this.roundTrip = NaN;
+ _this.resetStats_();
+ _this.mediaIndex = null;
+
+ // private settings
+ _this.hasPlayed_ = settings.hasPlayed;
+ _this.currentTime_ = settings.currentTime;
+ _this.seekable_ = settings.seekable;
+ _this.seeking_ = settings.seeking;
+ _this.duration_ = settings.duration;
+ _this.mediaSource_ = settings.mediaSource;
+ _this.hls_ = settings.hls;
+ _this.loaderType_ = settings.loaderType;
+ _this.startingMedia_ = void 0;
+ _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
+ _this.goalBufferLength_ = settings.goalBufferLength;
+ _this.sourceType_ = settings.sourceType;
+ _this.inbandTextTracks_ = settings.inbandTextTracks;
+ _this.state_ = 'INIT';
+
+ // private instance variables
+ _this.checkBufferTimeout_ = null;
+ _this.error_ = void 0;
+ _this.currentTimeline_ = -1;
+ _this.pendingSegment_ = null;
+ _this.mimeType_ = null;
+ _this.sourceUpdater_ = null;
+ _this.xhrOptions_ = null;
+
+ // Fragmented mp4 playback
+ _this.activeInitSegmentId_ = null;
+ _this.initSegments_ = {};
+ // Fmp4 CaptionParser
+ _this.captionParser_ = new mp4_6();
+
+ _this.decrypter_ = settings.decrypter;
+
+ // Manages the tracking and generation of sync-points, mappings
+ // between a time in the display time and a segment index within
+ // a playlist
+ _this.syncController_ = settings.syncController;
+ _this.syncPoint_ = {
+ segmentIndex: 0,
+ time: 0
+ };
+
+ _this.syncController_.on('syncinfoupdate', function () {
+ return _this.trigger('syncinfoupdate');
+ });
+
+ _this.mediaSource_.addEventListener('sourceopen', function () {
+ return _this.ended_ = false;
+ });
+
+ // ...for determining the fetch location
+ _this.fetchAtBuffer_ = false;
+
+ _this.logger_ = logger('SegmentLoader[' + _this.loaderType_ + ']');
+
+ Object.defineProperty(_this, 'state', {
+ get: function get$$1() {
+ return this.state_;
+ },
+ set: function set$$1(newState) {
+ if (newState !== this.state_) {
+ this.logger_(this.state_ + ' -> ' + newState);
+ this.state_ = newState;
+ }
+ }
+ });
+ return _this;
+ }
+
+ /**
+ * reset all of our media stats
+ *
+ * @private
+ */
+
+ createClass$2(SegmentLoader, [{
+ key: 'resetStats_',
+ value: function resetStats_() {
+ this.mediaBytesTransferred = 0;
+ this.mediaRequests = 0;
+ this.mediaRequestsAborted = 0;
+ this.mediaRequestsTimedout = 0;
+ this.mediaRequestsErrored = 0;
+ this.mediaTransferDuration = 0;
+ this.mediaSecondsLoaded = 0;
+ }
+
+ /**
+ * dispose of the SegmentLoader and reset to the default state
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ this.state = 'DISPOSED';
+ this.pause();
+ this.abort_();
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.dispose();
+ }
+ this.resetStats_();
+ this.captionParser_.reset();
+ }
+
+ /**
+ * abort anything that is currently doing on with the SegmentLoader
+ * and reset to a default state
+ */
+
+ }, {
+ key: 'abort',
+ value: function abort() {
+ if (this.state !== 'WAITING') {
+ if (this.pendingSegment_) {
+ this.pendingSegment_ = null;
+ }
+ return;
+ }
+
+ this.abort_();
+
+ // We aborted the requests we were waiting on, so reset the loader's state to READY
+ // since we are no longer "waiting" on any requests. XHR callback is not always run
+ // when the request is aborted. This will prevent the loader from being stuck in the
+ // WAITING state indefinitely.
+ this.state = 'READY';
+
+ // don't wait for buffer check timeouts to begin fetching the
+ // next segment
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * abort all pending xhr requests and null any pending segements
+ *
+ * @private
+ */
+
+ }, {
+ key: 'abort_',
+ value: function abort_() {
+ if (this.pendingSegment_) {
+ this.pendingSegment_.abortRequests();
+ }
+
+ // clear out the segment being processed
+ this.pendingSegment_ = null;
+ }
+
+ /**
+ * set an error on the segment loader and null out any pending segements
+ *
+ * @param {Error} error the error to set on the SegmentLoader
+ * @return {Error} the error that was set or that is currently set
+ */
+
+ }, {
+ key: 'error',
+ value: function error(_error) {
+ if (typeof _error !== 'undefined') {
+ this.error_ = _error;
+ }
+
+ this.pendingSegment_ = null;
+ return this.error_;
+ }
+ }, {
+ key: 'endOfStream',
+ value: function endOfStream() {
+ this.ended_ = true;
+ this.pause();
+ this.trigger('ended');
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ }, {
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.sourceUpdater_) {
+ return videojs$1.createTimeRanges();
+ }
+
+ return this.sourceUpdater_.buffered();
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: map.bytes,
+ timescales: map.timescales,
+ videoTrackIds: map.videoTrackIds
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && (
+ // the source updater is created when init_ is called, so either having a
+ // source updater or being in the INIT state with a mimeType is enough
+ // to say we have all the needed configuration to start loading.
+ this.sourceUpdater_ || this.mimeType_ && this.state === 'INIT') && !this.paused();
+ }
+
+ /**
+ * load a playlist and start to fill the buffer
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ // un-pause
+ this.monitorBuffer_();
+
+ // if we don't have a playlist yet, keep waiting for one to be
+ // specified
+ if (!this.playlist_) {
+ return;
+ }
+
+ // not sure if this is the best place for this
+ this.syncController_.setDateTimeMapping(this.playlist_);
+
+ // if all the configuration is ready, initialize and begin loading
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ // if we're in the middle of processing a segment already, don't
+ // kick off an additional segment request
+ if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
+ return;
+ }
+
+ this.state = 'READY';
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.sourceUpdater_ = new SourceUpdater(this.mediaSource_, this.mimeType_, this.loaderType_, this.sourceBufferEmitter_);
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * set a playlist on the segment loader
+ *
+ * @param {PlaylistLoader} media the playlist to set on the segment loader
+ */
+
+ }, {
+ key: 'playlist',
+ value: function playlist(newPlaylist) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ if (!newPlaylist) {
+ return;
+ }
+
+ var oldPlaylist = this.playlist_;
+ var segmentInfo = this.pendingSegment_;
+
+ this.playlist_ = newPlaylist;
+ this.xhrOptions_ = options;
+
+ // when we haven't started playing yet, the start of a live playlist
+ // is always our zero-time so force a sync update each time the playlist
+ // is refreshed from the server
+ if (!this.hasPlayed_()) {
+ newPlaylist.syncInfo = {
+ mediaSequence: newPlaylist.mediaSequence,
+ time: 0
+ };
+ }
+
+ var oldId = oldPlaylist ? oldPlaylist.id : null;
+
+ this.logger_('playlist update [' + oldId + ' => ' + newPlaylist.id + ']');
+
+ // in VOD, this is always a rendition switch (or we updated our syncInfo above)
+ // in LIVE, we always want to update with new playlists (including refreshes)
+ this.trigger('syncinfoupdate');
+
+ // if we were unpaused but waiting for a playlist, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ return this.init_();
+ }
+
+ if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
+ if (this.mediaIndex !== null) {
+ // we must "resync" the segment loader when we switch renditions and
+ // the segment loader is already synced to the previous rendition
+ this.resyncLoader();
+ }
+
+ // the rest of this function depends on `oldPlaylist` being defined
+ return;
+ }
+
+ // we reloaded the same playlist so we are in a live scenario
+ // and we will likely need to adjust the mediaIndex
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ this.logger_('live window shift [' + mediaSequenceDiff + ']');
+
+ // update the mediaIndex on the SegmentLoader
+ // this is important because we can abort a request and this value must be
+ // equal to the last appended mediaIndex
+ if (this.mediaIndex !== null) {
+ this.mediaIndex -= mediaSequenceDiff;
+ }
+
+ // update the mediaIndex on the SegmentInfo object
+ // this is important because we will update this.mediaIndex with this value
+ // in `handleUpdateEnd_` after the segment has been successfully appended
+ if (segmentInfo) {
+ segmentInfo.mediaIndex -= mediaSequenceDiff;
+
+ // we need to update the referenced segment so that timing information is
+ // saved for the new playlist's segment, however, if the segment fell off the
+ // playlist, we can leave the old reference and just lose the timing info
+ if (segmentInfo.mediaIndex >= 0) {
+ segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
+ }
+ }
+
+ this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
+ }
+
+ /**
+ * Prevent the loader from fetching additional segments. If there
+ * is a segment request outstanding, it will finish processing
+ * before the loader halts. A segment loader can be unpaused by
+ * calling load().
+ */
+
+ }, {
+ key: 'pause',
+ value: function pause() {
+ if (this.checkBufferTimeout_) {
+ window_1.clearTimeout(this.checkBufferTimeout_);
+
+ this.checkBufferTimeout_ = null;
+ }
+ }
+
+ /**
+ * Returns whether the segment loader is fetching additional
+ * segments when given the opportunity. This property can be
+ * modified through calls to pause() and load().
+ */
+
+ }, {
+ key: 'paused',
+ value: function paused() {
+ return this.checkBufferTimeout_ === null;
+ }
+
+ /**
+ * create/set the following mimetype on the SourceBuffer through a
+ * SourceUpdater
+ *
+ * @param {String} mimeType the mime type string to use
+ * @param {Object} sourceBufferEmitter an event emitter that fires when a source buffer
+ * is added to the media source
+ */
+
+ }, {
+ key: 'mimeType',
+ value: function mimeType(_mimeType, sourceBufferEmitter) {
+ if (this.mimeType_) {
+ return;
+ }
+
+ this.mimeType_ = _mimeType;
+ this.sourceBufferEmitter_ = sourceBufferEmitter;
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+ }
+
+ /**
+ * Delete all the buffered data and reset the SegmentLoader
+ * @param {Function} [done] an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'resetEverything',
+ value: function resetEverything(done) {
+ this.ended_ = false;
+ this.resetLoader();
+ this.remove(0, this.duration_(), done);
+ // clears fmp4 captions
+ this.captionParser_.clearAllCaptions();
+ this.trigger('reseteverything');
+ }
+
+ /**
+ * Force the SegmentLoader to resync and start loading around the currentTime instead
+ * of starting at the end of the buffer
+ *
+ * Useful for fast quality changes
+ */
+
+ }, {
+ key: 'resetLoader',
+ value: function resetLoader() {
+ this.fetchAtBuffer_ = false;
+ this.resyncLoader();
+ }
+
+ /**
+ * Force the SegmentLoader to restart synchronization and make a conservative guess
+ * before returning to the simple walk-forward method
+ */
+
+ }, {
+ key: 'resyncLoader',
+ value: function resyncLoader() {
+ this.mediaIndex = null;
+ this.syncPoint_ = null;
+ this.abort();
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ * @param {Function} [done] - an optional callback to be executed when the remove
+ * operation is complete
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end, done) {
+ if (this.sourceUpdater_) {
+ this.sourceUpdater_.remove(start, end, done);
+ }
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ if (this.inbandTextTracks_) {
+ for (var id in this.inbandTextTracks_) {
+ removeCuesFromTrack(start, end, this.inbandTextTracks_[id]);
+ }
+ }
+ }
+
+ /**
+ * (re-)schedule monitorBufferTick_ to run as soon as possible
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBuffer_',
+ value: function monitorBuffer_() {
+ if (this.checkBufferTimeout_) {
+ window_1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window_1.setTimeout(this.monitorBufferTick_.bind(this), 1);
+ }
+
+ /**
+ * As long as the SegmentLoader is in the READY state, periodically
+ * invoke fillBuffer_().
+ *
+ * @private
+ */
+
+ }, {
+ key: 'monitorBufferTick_',
+ value: function monitorBufferTick_() {
+ if (this.state === 'READY') {
+ this.fillBuffer_();
+ }
+
+ if (this.checkBufferTimeout_) {
+ window_1.clearTimeout(this.checkBufferTimeout_);
+ }
+
+ this.checkBufferTimeout_ = window_1.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ if (this.sourceUpdater_.updating()) {
+ return;
+ }
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ var isEndOfStream = detectEndOfStream(this.playlist_, this.mediaSource_, segmentInfo.mediaIndex);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ return;
+ }
+
+ if (segmentInfo.mediaIndex === this.playlist_.segments.length - 1 && this.mediaSource_.readyState === 'ended' && !this.seeking_()) {
+ return;
+ }
+
+ // We will need to change timestampOffset of the sourceBuffer if either of
+ // the following conditions are true:
+ // - The segment.timeline !== this.currentTimeline
+ // (we are crossing a discontinuity somehow)
+ // - The "timestampOffset" for the start of this segment is less than
+ // the currently set timestampOffset
+ // Also, clear captions if we are crossing a discontinuity boundary
+ if (segmentInfo.timeline !== this.currentTimeline_ || segmentInfo.startOfSegment !== null && segmentInfo.startOfSegment < this.sourceUpdater_.timestampOffset()) {
+ this.syncController_.reset();
+ segmentInfo.timestampOffset = segmentInfo.startOfSegment;
+ this.captionParser_.clearAllCaptions();
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Determines what segment request should be made, given current playback
+ * state.
+ *
+ * @param {TimeRanges} buffered - the state of the buffer
+ * @param {Object} playlist - the playlist object to fetch segments from
+ * @param {Number} mediaIndex - the previous mediaIndex fetched or null
+ * @param {Boolean} hasPlayed - a flag indicating whether we have played or not
+ * @param {Number} currentTime - the playback position in seconds
+ * @param {Object} syncPoint - a segment info object that describes the
+ * @returns {Object} a segment request object that describes the segment to load
+ */
+
+ }, {
+ key: 'checkBuffer_',
+ value: function checkBuffer_(buffered, playlist, mediaIndex, hasPlayed, currentTime, syncPoint) {
+ var lastBufferedEnd = 0;
+ var startOfSegment = void 0;
+
+ if (buffered.length) {
+ lastBufferedEnd = buffered.end(buffered.length - 1);
+ }
+
+ var bufferedTime = Math.max(0, lastBufferedEnd - currentTime);
+
+ if (!playlist.segments.length) {
+ return null;
+ }
+
+ // if there is plenty of content buffered, and the video has
+ // been played before relax for awhile
+ if (bufferedTime >= this.goalBufferLength_()) {
+ return null;
+ }
+
+ // if the video has not yet played once, and we already have
+ // one segment downloaded do nothing
+ if (!hasPlayed && bufferedTime >= 1) {
+ return null;
+ }
+
+ // When the syncPoint is null, there is no way of determining a good
+ // conservative segment index to fetch from
+ // The best thing to do here is to get the kind of sync-point data by
+ // making a request
+ if (syncPoint === null) {
+ mediaIndex = this.getSyncSegmentCandidate_(playlist);
+ return this.generateSegmentInfo_(playlist, mediaIndex, null, true);
+ }
+
+ // Under normal playback conditions fetching is a simple walk forward
+ if (mediaIndex !== null) {
+ var segment = playlist.segments[mediaIndex];
+
+ if (segment && segment.end) {
+ startOfSegment = segment.end;
+ } else {
+ startOfSegment = lastBufferedEnd;
+ }
+ return this.generateSegmentInfo_(playlist, mediaIndex + 1, startOfSegment, false);
+ }
+
+ // There is a sync-point but the lack of a mediaIndex indicates that
+ // we need to make a good conservative guess about which segment to
+ // fetch
+ if (this.fetchAtBuffer_) {
+ // Find the segment containing the end of the buffer
+ var mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, lastBufferedEnd, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = mediaSourceInfo.mediaIndex;
+ startOfSegment = mediaSourceInfo.startTime;
+ } else {
+ // Find the segment containing currentTime
+ var _mediaSourceInfo = Playlist.getMediaInfoForTime(playlist, currentTime, syncPoint.segmentIndex, syncPoint.time);
+
+ mediaIndex = _mediaSourceInfo.mediaIndex;
+ startOfSegment = _mediaSourceInfo.startTime;
+ }
+
+ return this.generateSegmentInfo_(playlist, mediaIndex, startOfSegment, false);
+ }
+
+ /**
+ * The segment loader has no recourse except to fetch a segment in the
+ * current playlist and use the internal timestamps in that segment to
+ * generate a syncPoint. This function returns a good candidate index
+ * for that process.
+ *
+ * @param {Object} playlist - the playlist object to look for a
+ * @returns {Number} An index of a segment from the playlist to load
+ */
+
+ }, {
+ key: 'getSyncSegmentCandidate_',
+ value: function getSyncSegmentCandidate_(playlist) {
+ var _this2 = this;
+
+ if (this.currentTimeline_ === -1) {
+ return 0;
+ }
+
+ var segmentIndexArray = playlist.segments.map(function (s, i) {
+ return {
+ timeline: s.timeline,
+ segmentIndex: i
+ };
+ }).filter(function (s) {
+ return s.timeline === _this2.currentTimeline_;
+ });
+
+ if (segmentIndexArray.length) {
+ return segmentIndexArray[Math.min(segmentIndexArray.length - 1, 1)].segmentIndex;
+ }
+
+ return Math.max(playlist.segments.length - 1, 0);
+ }
+ }, {
+ key: 'generateSegmentInfo_',
+ value: function generateSegmentInfo_(playlist, mediaIndex, startOfSegment, isSyncRequest) {
+ if (mediaIndex < 0 || mediaIndex >= playlist.segments.length) {
+ return null;
+ }
+
+ var segment = playlist.segments[mediaIndex];
+
+ return {
+ requestId: 'segment-loader-' + Math.random(),
+ // resolve the segment URL relative to the playlist
+ uri: segment.resolvedUri,
+ // the segment's mediaIndex at the time it was requested
+ mediaIndex: mediaIndex,
+ // whether or not to update the SegmentLoader's state with this
+ // segment's mediaIndex
+ isSyncRequest: isSyncRequest,
+ startOfSegment: startOfSegment,
+ // the segment's playlist
+ playlist: playlist,
+ // unencrypted bytes of the segment
+ bytes: null,
+ // when a key is defined for this segment, the encrypted bytes
+ encryptedBytes: null,
+ // The target timestampOffset for this segment when we append it
+ // to the source buffer
+ timestampOffset: null,
+ // The timeline that the segment is in
+ timeline: segment.timeline,
+ // The expected duration of the segment in seconds
+ duration: segment.duration,
+ // retain the segment in case the playlist updates while doing an async process
+ segment: segment
+ };
+ }
+
+ /**
+ * Determines if the network has enough bandwidth to complete the current segment
+ * request in a timely manner. If not, the request will be aborted early and bandwidth
+ * updated to trigger a playlist switch.
+ *
+ * @param {Object} stats
+ * Object containing stats about the request timing and size
+ * @return {Boolean} True if the request was aborted, false otherwise
+ * @private
+ */
+
+ }, {
+ key: 'abortRequestEarly_',
+ value: function abortRequestEarly_(stats) {
+ if (this.hls_.tech_.paused() ||
+ // Don't abort if the current playlist is on the lowestEnabledRendition
+ // TODO: Replace using timeout with a boolean indicating whether this playlist is
+ // the lowestEnabledRendition.
+ !this.xhrOptions_.timeout ||
+ // Don't abort if we have no bandwidth information to estimate segment sizes
+ !this.playlist_.attributes.BANDWIDTH) {
+ return false;
+ }
+
+ // Wait at least 1 second since the first byte of data has been received before
+ // using the calculated bandwidth from the progress event to allow the bitrate
+ // to stabilize
+ if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
+ return false;
+ }
+
+ var currentTime = this.currentTime_();
+ var measuredBandwidth = stats.bandwidth;
+ var segmentDuration = this.pendingSegment_.duration;
+
+ var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived);
+
+ // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
+ // if we are only left with less than 1 second when the request completes.
+ // A negative timeUntilRebuffering indicates we are already rebuffering
+ var timeUntilRebuffer$$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.hls_.tech_.playbackRate()) - 1;
+
+ // Only consider aborting early if the estimated time to finish the download
+ // is larger than the estimated time until the player runs out of forward buffer
+ if (requestTimeRemaining <= timeUntilRebuffer$$1) {
+ return false;
+ }
+
+ var switchCandidate = minRebufferMaxBandwidthSelector({
+ master: this.hls_.playlists.master,
+ currentTime: currentTime,
+ bandwidth: measuredBandwidth,
+ duration: this.duration_(),
+ segmentDuration: segmentDuration,
+ timeUntilRebuffer: timeUntilRebuffer$$1,
+ currentTimeline: this.currentTimeline_,
+ syncController: this.syncController_
+ });
+
+ if (!switchCandidate) {
+ return;
+ }
+
+ var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$$1;
+
+ var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
+
+ var minimumTimeSaving = 0.5;
+
+ // If we are already rebuffering, increase the amount of variance we add to the
+ // potential round trip time of the new request so that we are not too aggressive
+ // with switching to a playlist that might save us a fraction of a second.
+ if (timeUntilRebuffer$$1 <= TIME_FUDGE_FACTOR) {
+ minimumTimeSaving = 1;
+ }
+
+ if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
+ return false;
+ }
+
+ // set the bandwidth to that of the desired playlist being sure to scale by
+ // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
+ // don't trigger a bandwidthupdate as the bandwidth is artifial
+ this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
+ this.abort();
+ this.trigger('earlyabort');
+ return true;
+ }
+
+ /**
+ * XHR `progress` event handler
+ *
+ * @param {Event}
+ * The XHR `progress` event
+ * @param {Object} simpleSegment
+ * A simplified segment object copy
+ * @private
+ */
+
+ }, {
+ key: 'handleProgress_',
+ value: function handleProgress_(event, simpleSegment) {
+ if (!this.pendingSegment_ || simpleSegment.requestId !== this.pendingSegment_.requestId || this.abortRequestEarly_(simpleSegment.stats)) {
+ return;
+ }
+
+ this.trigger('progress');
+ }
+
+ /**
+ * load a specific segment from a request into the buffer
+ *
+ * @private
+ */
+
+ }, {
+ key: 'loadSegment_',
+ value: function loadSegment_(segmentInfo) {
+ this.state = 'WAITING';
+ this.pendingSegment_ = segmentInfo;
+ this.trimBackBuffer_(segmentInfo);
+
+ segmentInfo.abortRequests = mediaSegmentRequest(this.hls_.xhr, this.xhrOptions_, this.decrypter_, this.captionParser_, this.createSimplifiedSegmentObj_(segmentInfo),
+ // progress callback
+ this.handleProgress_.bind(this), this.segmentRequestFinished_.bind(this));
+ }
+
+ /**
+ * trim the back buffer so that we don't have too much data
+ * in the source buffer
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ */
+
+ }, {
+ key: 'trimBackBuffer_',
+ value: function trimBackBuffer_(segmentInfo) {
+ var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10);
+
+ // Chrome has a hard limit of 150MB of
+ // buffer and a very conservative "garbage collector"
+ // We manually clear out the old buffer to ensure
+ // we don't trigger the QuotaExceeded error
+ // on the source buffer during subsequent appends
+
+ if (removeToTime > 0) {
+ this.remove(0, removeToTime);
+ }
+ }
+
+ /**
+ * created a simplified copy of the segment object with just the
+ * information necessary to perform the XHR and decryption
+ *
+ * @private
+ *
+ * @param {Object} segmentInfo - the current segment
+ * @returns {Object} a simplified segment object copy
+ */
+
+ }, {
+ key: 'createSimplifiedSegmentObj_',
+ value: function createSimplifiedSegmentObj_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var simpleSegment = {
+ resolvedUri: segment.resolvedUri,
+ byterange: segment.byterange,
+ requestId: segmentInfo.requestId
+ };
+
+ if (segment.key) {
+ // if the media sequence is greater than 2^32, the IV will be incorrect
+ // assuming 10s segments, that would be about 1300 years
+ var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
+
+ simpleSegment.key = {
+ resolvedUri: segment.key.resolvedUri,
+ iv: iv
+ };
+ }
+
+ if (segment.map) {
+ simpleSegment.map = this.initSegment(segment.map);
+ }
+
+ return simpleSegment;
+ }
+
+ /**
+ * Handle the callback from the segmentRequest function and set the
+ * associated SegmentLoader state and errors if necessary
+ *
+ * @private
+ */
+
+ }, {
+ key: 'segmentRequestFinished_',
+ value: function segmentRequestFinished_(error, simpleSegment) {
+ // every request counts as a media request even if it has been aborted
+ // or canceled due to a timeout
+ this.mediaRequests += 1;
+
+ if (simpleSegment.stats) {
+ this.mediaBytesTransferred += simpleSegment.stats.bytesReceived;
+ this.mediaTransferDuration += simpleSegment.stats.roundTripTime;
+ }
+
+ // The request was aborted and the SegmentLoader has already been reset
+ if (!this.pendingSegment_) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ // the request was aborted and the SegmentLoader has already started
+ // another request. this can happen when the timeout for an aborted
+ // request triggers due to a limitation in the XHR library
+ // do not count this as any sort of request or we risk double-counting
+ if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
+ return;
+ }
+
+ // an error occurred from the active pendingSegment_ so reset everything
+ if (error) {
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+
+ // the requests were aborted just record the aborted stat and exit
+ // this is not a true error condition and nothing corrective needs
+ // to be done
+ if (error.code === REQUEST_ERRORS.ABORTED) {
+ this.mediaRequestsAborted += 1;
+ return;
+ }
+
+ this.pause();
+
+ // the error is really just that at least one of the requests timed-out
+ // set the bandwidth to a very low value and trigger an ABR switch to
+ // take emergency action
+ if (error.code === REQUEST_ERRORS.TIMEOUT) {
+ this.mediaRequestsTimedout += 1;
+ this.bandwidth = 1;
+ this.roundTrip = NaN;
+ this.trigger('bandwidthupdate');
+ return;
+ }
+
+ // if control-flow has arrived here, then the error is real
+ // emit an error event to blacklist the current playlist
+ this.mediaRequestsErrored += 1;
+ this.error(error);
+ this.trigger('error');
+ return;
+ }
+
+ // the response was a success so set any bandwidth stats the request
+ // generated for ABR purposes
+ this.bandwidth = simpleSegment.stats.bandwidth;
+ this.roundTrip = simpleSegment.stats.roundTripTime;
+
+ // if this request included an initialization segment, save that data
+ // to the initSegment cache
+ if (simpleSegment.map) {
+ simpleSegment.map = this.initSegment(simpleSegment.map, true);
+ }
+
+ this.processSegmentResponse_(simpleSegment);
+ }
+
+ /**
+ * Move any important data from the simplified segment object
+ * back to the real segment object for future phases
+ *
+ * @private
+ */
+
+ }, {
+ key: 'processSegmentResponse_',
+ value: function processSegmentResponse_(simpleSegment) {
+ var segmentInfo = this.pendingSegment_;
+
+ segmentInfo.bytes = simpleSegment.bytes;
+ if (simpleSegment.map) {
+ segmentInfo.segment.map.bytes = simpleSegment.map.bytes;
+ }
+
+ segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
+
+ // This has fmp4 captions, add them to text tracks
+ if (simpleSegment.fmp4Captions) {
+ createCaptionsTrackIfNotExists(this.inbandTextTracks_, this.hls_.tech_, simpleSegment.captionStreams);
+ addCaptionData({
+ inbandTextTracks: this.inbandTextTracks_,
+ captionArray: simpleSegment.fmp4Captions,
+ // fmp4s will not have a timestamp offset
+ timestampOffset: 0
+ });
+ // Reset stored captions since we added parsed
+ // captions to a text track at this point
+ this.captionParser_.clearParsedCaptions();
+ }
+
+ this.handleSegment_();
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var timingInfo = this.syncController_.probeSegmentInfo(segmentInfo);
+
+ // When we have our first timing info, determine what media types this loader is
+ // dealing with. Although we're maintaining extra state, it helps to preserve the
+ // separation of segment loader from the actual source buffers.
+ if (typeof this.startingMedia_ === 'undefined' && timingInfo && (
+ // Guard against cases where we're not getting timing info at all until we are
+ // certain that all streams will provide it.
+ timingInfo.containsAudio || timingInfo.containsVideo)) {
+ this.startingMedia_ = {
+ containsAudio: timingInfo.containsAudio,
+ containsVideo: timingInfo.containsVideo
+ };
+ }
+
+ var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.startingMedia_, timingInfo);
+
+ if (illegalMediaSwitchError) {
+ this.error({
+ message: illegalMediaSwitchError,
+ blacklistDuration: Infinity
+ });
+ this.trigger('error');
+ return;
+ }
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ if (segmentInfo.timestampOffset !== null && segmentInfo.timestampOffset !== this.sourceUpdater_.timestampOffset()) {
+ this.sourceUpdater_.timestampOffset(segmentInfo.timestampOffset);
+ // fired when a timestamp offset is set in HLS (can also identify discontinuities)
+ this.trigger('timestampoffset');
+ }
+
+ var timelineMapping = this.syncController_.mappingForTimeline(segmentInfo.timeline);
+
+ if (timelineMapping !== null) {
+ this.trigger({
+ type: 'segmenttimemapping',
+ mapping: timelineMapping
+ });
+ }
+
+ this.state = 'APPENDING';
+
+ // if the media initialization segment is changing, append it
+ // before the content segment
+ if (segment.map) {
+ var initId = initSegmentId(segment.map);
+
+ if (!this.activeInitSegmentId_ || this.activeInitSegmentId_ !== initId) {
+ var initSegment = this.initSegment(segment.map);
+
+ this.sourceUpdater_.appendBuffer(initSegment.bytes, function () {
+ _this3.activeInitSegmentId_ = initId;
+ });
+ }
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+ if (typeof segment.start === 'number' && typeof segment.end === 'number') {
+ this.mediaSecondsLoaded += segment.end - segment.start;
+ } else {
+ this.mediaSecondsLoaded += segment.duration;
+ }
+
+ this.logger_(segmentInfoString(segmentInfo));
+
+ this.sourceUpdater_.appendBuffer(segmentInfo.bytes, this.handleUpdateEnd_.bind(this));
+ }
+
+ /**
+ * callback to run when appendBuffer is finished. detects if we are
+ * in a good state to do things with the data we got, or if we need
+ * to wait for more
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleUpdateEnd_',
+ value: function handleUpdateEnd_() {
+ if (!this.pendingSegment_) {
+ this.state = 'READY';
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ return;
+ }
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+ var isWalkingForward = this.mediaIndex !== null;
+
+ this.pendingSegment_ = null;
+ this.recordThroughput_(segmentInfo);
+ this.addSegmentMetadataCue_(segmentInfo);
+
+ this.state = 'READY';
+
+ this.mediaIndex = segmentInfo.mediaIndex;
+ this.fetchAtBuffer_ = true;
+ this.currentTimeline_ = segmentInfo.timeline;
+
+ // We must update the syncinfo to recalculate the seekable range before
+ // the following conditional otherwise it may consider this a bad "guess"
+ // and attempt to resync when the post-update seekable window and live
+ // point would mean that this was the perfect segment to fetch
+ this.trigger('syncinfoupdate');
+
+ // If we previously appended a segment that ends more than 3 targetDurations before
+ // the currentTime_ that means that our conservative guess was too conservative.
+ // In that case, reset the loader state so that we try to use any information gained
+ // from the previous request to create a new, more accurate, sync-point.
+ if (segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3) {
+ this.resetEverything();
+ return;
+ }
+
+ // Don't do a rendition switch unless we have enough time to get a sync segment
+ // and conservatively guess
+ if (isWalkingForward) {
+ this.trigger('bandwidthupdate');
+ }
+ this.trigger('progress');
+
+ // any time an update finishes and the last segment is in the
+ // buffer, end the stream. this ensures the "ended" event will
+ // fire if playback reaches that point.
+ var isEndOfStream = detectEndOfStream(segmentInfo.playlist, this.mediaSource_, segmentInfo.mediaIndex + 1);
+
+ if (isEndOfStream) {
+ this.endOfStream();
+ }
+
+ if (!this.paused()) {
+ this.monitorBuffer_();
+ }
+ }
+
+ /**
+ * Records the current throughput of the decrypt, transmux, and append
+ * portion of the semgment pipeline. `throughput.rate` is a the cumulative
+ * moving average of the throughput. `throughput.count` is the number of
+ * data points in the average.
+ *
+ * @private
+ * @param {Object} segmentInfo the object returned by loadSegment
+ */
+
+ }, {
+ key: 'recordThroughput_',
+ value: function recordThroughput_(segmentInfo) {
+ var rate = this.throughput.rate;
+ // Add one to the time to ensure that we don't accidentally attempt to divide
+ // by zero in the case where the throughput is ridiculously high
+ var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1;
+ // Multiply by 8000 to convert from bytes/millisecond to bits/second
+ var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000);
+
+ // This is just a cumulative moving average calculation:
+ // newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
+ this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
+ }
+
+ /**
+ * Adds a cue to the segment-metadata track with some metadata information about the
+ * segment
+ *
+ * @private
+ * @param {Object} segmentInfo
+ * the object returned by loadSegment
+ * @method addSegmentMetadataCue_
+ */
+
+ }, {
+ key: 'addSegmentMetadataCue_',
+ value: function addSegmentMetadataCue_(segmentInfo) {
+ if (!this.segmentMetadataTrack_) {
+ return;
+ }
+
+ var segment = segmentInfo.segment;
+ var start = segment.start;
+ var end = segment.end;
+
+ // Do not try adding the cue if the start and end times are invalid.
+ if (!finite(start) || !finite(end)) {
+ return;
+ }
+
+ removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+
+ var Cue = window_1.WebKitDataCue || window_1.VTTCue;
+ var value = {
+ bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
+ resolution: segmentInfo.playlist.attributes.RESOLUTION,
+ codecs: segmentInfo.playlist.attributes.CODECS,
+ byteLength: segmentInfo.byteLength,
+ uri: segmentInfo.uri,
+ timeline: segmentInfo.timeline,
+ playlist: segmentInfo.playlist.uri,
+ start: start,
+ end: end
+ };
+ var data = JSON.stringify(value);
+ var cue = new Cue(start, end, data);
+
+ // Attach the metadata to the value property of the cue to keep consistency between
+ // the differences of WebKitDataCue in safari and VTTCue in other browsers
+ cue.value = value;
+
+ this.segmentMetadataTrack_.addCue(cue);
+ }
+ }]);
+ return SegmentLoader;
+ }(videojs$1.EventTarget);
+
+ var uint8ToUtf8 = function uint8ToUtf8(uintArray) {
+ return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
+ };
+
+ /**
+ * @file vtt-segment-loader.js
+ */
+
+ var VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(function (char) {
+ return char.charCodeAt(0);
+ }));
+
+ /**
+ * An object that manages segment loading and appending.
+ *
+ * @class VTTSegmentLoader
+ * @param {Object} options required and optional options
+ * @extends videojs.EventTarget
+ */
+
+ var VTTSegmentLoader = function (_SegmentLoader) {
+ inherits$3(VTTSegmentLoader, _SegmentLoader);
+
+ function VTTSegmentLoader(settings) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+ classCallCheck$3(this, VTTSegmentLoader);
+
+ // SegmentLoader requires a MediaSource be specified or it will throw an error;
+ // however, VTTSegmentLoader has no need of a media source, so delete the reference
+ var _this = possibleConstructorReturn$3(this, (VTTSegmentLoader.__proto__ || Object.getPrototypeOf(VTTSegmentLoader)).call(this, settings, options));
+
+ _this.mediaSource_ = null;
+
+ _this.subtitlesTrack_ = null;
+ return _this;
+ }
+
+ /**
+ * Indicates which time ranges are buffered
+ *
+ * @return {TimeRange}
+ * TimeRange object representing the current buffered ranges
+ */
+
+ createClass$2(VTTSegmentLoader, [{
+ key: 'buffered_',
+ value: function buffered_() {
+ if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues.length) {
+ return videojs$1.createTimeRanges();
+ }
+
+ var cues = this.subtitlesTrack_.cues;
+ var start = cues[0].startTime;
+ var end = cues[cues.length - 1].startTime;
+
+ return videojs$1.createTimeRanges([[start, end]]);
+ }
+
+ /**
+ * Gets and sets init segment for the provided map
+ *
+ * @param {Object} map
+ * The map object representing the init segment to get or set
+ * @param {Boolean=} set
+ * If true, the init segment for the provided map should be saved
+ * @return {Object}
+ * map object for desired init segment
+ */
+
+ }, {
+ key: 'initSegment',
+ value: function initSegment(map) {
+ var set$$1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+ if (!map) {
+ return null;
+ }
+
+ var id = initSegmentId(map);
+ var storedMap = this.initSegments_[id];
+
+ if (set$$1 && !storedMap && map.bytes) {
+ // append WebVTT line terminators to the media initialization segment if it exists
+ // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
+ // requires two or more WebVTT line terminators between the WebVTT header and the
+ // rest of the file
+ var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
+ var combinedSegment = new Uint8Array(combinedByteLength);
+
+ combinedSegment.set(map.bytes);
+ combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
+
+ this.initSegments_[id] = storedMap = {
+ resolvedUri: map.resolvedUri,
+ byterange: map.byterange,
+ bytes: combinedSegment
+ };
+ }
+
+ return storedMap || map;
+ }
+
+ /**
+ * Returns true if all configuration required for loading is present, otherwise false.
+ *
+ * @return {Boolean} True if the all configuration is ready for loading
+ * @private
+ */
+
+ }, {
+ key: 'couldBeginLoading_',
+ value: function couldBeginLoading_() {
+ return this.playlist_ && this.subtitlesTrack_ && !this.paused();
+ }
+
+ /**
+ * Once all the starting parameters have been specified, begin
+ * operation. This method should only be invoked from the INIT
+ * state.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'init_',
+ value: function init_() {
+ this.state = 'READY';
+ this.resetEverything();
+ return this.monitorBuffer_();
+ }
+
+ /**
+ * Set a subtitle track on the segment loader to add subtitles to
+ *
+ * @param {TextTrack=} track
+ * The text track to add loaded subtitles to
+ * @return {TextTrack}
+ * Returns the subtitles track
+ */
+
+ }, {
+ key: 'track',
+ value: function track(_track) {
+ if (typeof _track === 'undefined') {
+ return this.subtitlesTrack_;
+ }
+
+ this.subtitlesTrack_ = _track;
+
+ // if we were unpaused but waiting for a sourceUpdater, start
+ // buffering now
+ if (this.state === 'INIT' && this.couldBeginLoading_()) {
+ this.init_();
+ }
+
+ return this.subtitlesTrack_;
+ }
+
+ /**
+ * Remove any data in the source buffer between start and end times
+ * @param {Number} start - the start time of the region to remove from the buffer
+ * @param {Number} end - the end time of the region to remove from the buffer
+ */
+
+ }, {
+ key: 'remove',
+ value: function remove(start, end) {
+ removeCuesFromTrack(start, end, this.subtitlesTrack_);
+ }
+
+ /**
+ * fill the buffer with segements unless the sourceBuffers are
+ * currently updating
+ *
+ * Note: this function should only ever be called by monitorBuffer_
+ * and never directly
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fillBuffer_',
+ value: function fillBuffer_() {
+ var _this2 = this;
+
+ if (!this.syncPoint_) {
+ this.syncPoint_ = this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+ }
+
+ // see if we need to begin loading immediately
+ var segmentInfo = this.checkBuffer_(this.buffered_(), this.playlist_, this.mediaIndex, this.hasPlayed_(), this.currentTime_(), this.syncPoint_);
+
+ segmentInfo = this.skipEmptySegments_(segmentInfo);
+
+ if (!segmentInfo) {
+ return;
+ }
+
+ if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
+ // We don't have the timestamp offset that we need to sync subtitles.
+ // Rerun on a timestamp offset or user interaction.
+ var checkTimestampOffset = function checkTimestampOffset() {
+ _this2.state = 'READY';
+ if (!_this2.paused()) {
+ // if not paused, queue a buffer check as soon as possible
+ _this2.monitorBuffer_();
+ }
+ };
+
+ this.syncController_.one('timestampoffset', checkTimestampOffset);
+ this.state = 'WAITING_ON_TIMELINE';
+ return;
+ }
+
+ this.loadSegment_(segmentInfo);
+ }
+
+ /**
+ * Prevents the segment loader from requesting segments we know contain no subtitles
+ * by walking forward until we find the next segment that we don't know whether it is
+ * empty or not.
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @return {Object}
+ * a segment info object that describes the current segment
+ */
+
+ }, {
+ key: 'skipEmptySegments_',
+ value: function skipEmptySegments_(segmentInfo) {
+ while (segmentInfo && segmentInfo.segment.empty) {
+ segmentInfo = this.generateSegmentInfo_(segmentInfo.playlist, segmentInfo.mediaIndex + 1, segmentInfo.startOfSegment + segmentInfo.duration, segmentInfo.isSyncRequest);
+ }
+ return segmentInfo;
+ }
+
+ /**
+ * append a decrypted segement to the SourceBuffer through a SourceUpdater
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSegment_',
+ value: function handleSegment_() {
+ var _this3 = this;
+
+ if (!this.pendingSegment_ || !this.subtitlesTrack_) {
+ this.state = 'READY';
+ return;
+ }
+
+ this.state = 'APPENDING';
+
+ var segmentInfo = this.pendingSegment_;
+ var segment = segmentInfo.segment;
+
+ // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+ if (typeof window_1.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {
+
+ var loadHandler = function loadHandler() {
+ _this3.handleSegment_();
+ };
+
+ this.state = 'WAITING_ON_VTTJS';
+ this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);
+ this.subtitlesTrack_.tech_.one('vttjserror', function () {
+ _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);
+ _this3.error({
+ message: 'Error loading vtt.js'
+ });
+ _this3.state = 'READY';
+ _this3.pause();
+ _this3.trigger('error');
+ });
+
+ return;
+ }
+
+ segment.requested = true;
+
+ try {
+ this.parseVTTCues_(segmentInfo);
+ } catch (e) {
+ this.error({
+ message: e.message
+ });
+ this.state = 'READY';
+ this.pause();
+ return this.trigger('error');
+ }
+
+ this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
+
+ if (segmentInfo.isSyncRequest) {
+ this.trigger('syncinfoupdate');
+ this.pendingSegment_ = null;
+ this.state = 'READY';
+ return;
+ }
+
+ segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+
+ this.mediaSecondsLoaded += segment.duration;
+
+ if (segmentInfo.cues.length) {
+ // remove any overlapping cues to prevent doubling
+ this.remove(segmentInfo.cues[0].endTime, segmentInfo.cues[segmentInfo.cues.length - 1].endTime);
+ }
+
+ segmentInfo.cues.forEach(function (cue) {
+ _this3.subtitlesTrack_.addCue(cue);
+ });
+
+ this.handleUpdateEnd_();
+ }
+
+ /**
+ * Uses the WebVTT parser to parse the segment response
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @private
+ */
+
+ }, {
+ key: 'parseVTTCues_',
+ value: function parseVTTCues_(segmentInfo) {
+ var decoder = void 0;
+ var decodeBytesToString = false;
+
+ if (typeof window_1.TextDecoder === 'function') {
+ decoder = new window_1.TextDecoder('utf8');
+ } else {
+ decoder = window_1.WebVTT.StringDecoder();
+ decodeBytesToString = true;
+ }
+
+ var parser = new window_1.WebVTT.Parser(window_1, window_1.vttjs, decoder);
+
+ segmentInfo.cues = [];
+ segmentInfo.timestampmap = { MPEGTS: 0, LOCAL: 0 };
+
+ parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
+ parser.ontimestampmap = function (map) {
+ return segmentInfo.timestampmap = map;
+ };
+ parser.onparsingerror = function (error) {
+ videojs$1.log.warn('Error encountered when parsing cues: ' + error.message);
+ };
+
+ if (segmentInfo.segment.map) {
+ var mapData = segmentInfo.segment.map.bytes;
+
+ if (decodeBytesToString) {
+ mapData = uint8ToUtf8(mapData);
+ }
+
+ parser.parse(mapData);
+ }
+
+ var segmentData = segmentInfo.bytes;
+
+ if (decodeBytesToString) {
+ segmentData = uint8ToUtf8(segmentData);
+ }
+
+ parser.parse(segmentData);
+ parser.flush();
+ }
+
+ /**
+ * Updates the start and end times of any cues parsed by the WebVTT parser using
+ * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
+ * from the SyncController
+ *
+ * @param {Object} segmentInfo
+ * a segment info object that describes the current segment
+ * @param {Object} mappingObj
+ * object containing a mapping from TS to media time
+ * @param {Object} playlist
+ * the playlist object containing the segment
+ * @private
+ */
+
+ }, {
+ key: 'updateTimeMapping_',
+ value: function updateTimeMapping_(segmentInfo, mappingObj, playlist) {
+ var segment = segmentInfo.segment;
+
+ if (!mappingObj) {
+ // If the sync controller does not have a mapping of TS to Media Time for the
+ // timeline, then we don't have enough information to update the cue
+ // start/end times
+ return;
+ }
+
+ if (!segmentInfo.cues.length) {
+ // If there are no cues, we also do not have enough information to figure out
+ // segment timing. Mark that the segment contains no cues so we don't re-request
+ // an empty segment.
+ segment.empty = true;
+ return;
+ }
+
+ var timestampmap = segmentInfo.timestampmap;
+ var diff = timestampmap.MPEGTS / 90000 - timestampmap.LOCAL + mappingObj.mapping;
+
+ segmentInfo.cues.forEach(function (cue) {
+ // First convert cue time to TS time using the timestamp-map provided within the vtt
+ cue.startTime += diff;
+ cue.endTime += diff;
+ });
+
+ if (!playlist.syncInfo) {
+ var firstStart = segmentInfo.cues[0].startTime;
+ var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
+
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: Math.min(firstStart, lastStart - segment.duration)
+ };
+ }
+ }
+ }]);
+ return VTTSegmentLoader;
+ }(SegmentLoader);
+
+ /**
+ * @file ad-cue-tags.js
+ */
+
+ /**
+ * Searches for an ad cue that overlaps with the given mediaTime
+ */
+ var findAdCue = function findAdCue(track, mediaTime) {
+ var cues = track.cues;
+
+ for (var i = 0; i < cues.length; i++) {
+ var cue = cues[i];
+
+ if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
+ return cue;
+ }
+ }
+ return null;
+ };
+
+ var updateAdCues = function updateAdCues(media, track) {
+ var offset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+ if (!media.segments) {
+ return;
+ }
+
+ var mediaTime = offset;
+ var cue = void 0;
+
+ for (var i = 0; i < media.segments.length; i++) {
+ var segment = media.segments[i];
+
+ if (!cue) {
+ // Since the cues will span for at least the segment duration, adding a fudge
+ // factor of half segment duration will prevent duplicate cues from being
+ // created when timing info is not exact (e.g. cue start time initialized
+ // at 10.006677, but next call mediaTime is 10.003332 )
+ cue = findAdCue(track, mediaTime + segment.duration / 2);
+ }
+
+ if (cue) {
+ if ('cueIn' in segment) {
+ // Found a CUE-IN so end the cue
+ cue.endTime = mediaTime;
+ cue.adEndTime = mediaTime;
+ mediaTime += segment.duration;
+ cue = null;
+ continue;
+ }
+
+ if (mediaTime < cue.endTime) {
+ // Already processed this mediaTime for this cue
+ mediaTime += segment.duration;
+ continue;
+ }
+
+ // otherwise extend cue until a CUE-IN is found
+ cue.endTime += segment.duration;
+ } else {
+ if ('cueOut' in segment) {
+ cue = new window_1.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
+ cue.adStartTime = mediaTime;
+ // Assumes tag format to be
+ // #EXT-X-CUE-OUT:30
+ cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
+ track.addCue(cue);
+ }
+
+ if ('cueOutCont' in segment) {
+ // Entered into the middle of an ad cue
+ var adOffset = void 0;
+ var adTotal = void 0;
+
+ // Assumes tag formate to be
+ // #EXT-X-CUE-OUT-CONT:10/30
+
+ var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat);
+
+ var _segment$cueOutCont$s2 = slicedToArray$1(_segment$cueOutCont$s, 2);
+
+ adOffset = _segment$cueOutCont$s2[0];
+ adTotal = _segment$cueOutCont$s2[1];
+
+ cue = new window_1.VTTCue(mediaTime, mediaTime + segment.duration, '');
+ cue.adStartTime = mediaTime - adOffset;
+ cue.adEndTime = cue.adStartTime + adTotal;
+ track.addCue(cue);
+ }
+ }
+ mediaTime += segment.duration;
+ }
+ };
+
+ /**
+ * @file sync-controller.js
+ */
+
+ var tsprobe = tsInspector.inspect;
+
+ var syncPointStrategies = [
+ // Stategy "VOD": Handle the VOD-case where the sync-point is *always*
+ // the equivalence display-time 0 === segment-index 0
+ {
+ name: 'VOD',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (duration$$1 !== Infinity) {
+ var syncPoint = {
+ time: 0,
+ segmentIndex: 0
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+ },
+ // Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
+ {
+ name: 'ProgramDateTime',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (!syncController.datetimeToDisplayTime) {
+ return null;
+ }
+
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.dateTimeObject) {
+ var segmentTime = segment.dateTimeObject.getTime() / 1000;
+ var segmentStart = segmentTime + syncController.datetimeToDisplayTime;
+ var distance = Math.abs(currentTime - segmentStart);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ lastDistance = distance;
+ syncPoint = {
+ time: segmentStart,
+ segmentIndex: i
+ };
+ }
+ }
+ return syncPoint;
+ }
+ },
+ // Stategy "Segment": We have a known time mapping for a timeline and a
+ // segment in the current timeline with timing data
+ {
+ name: 'Segment',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var segments = playlist.segments || [];
+ var syncPoint = null;
+ var lastDistance = null;
+
+ currentTime = currentTime || 0;
+
+ for (var i = 0; i < segments.length; i++) {
+ var segment = segments[i];
+
+ if (segment.timeline === currentTimeline && typeof segment.start !== 'undefined') {
+ var distance = Math.abs(currentTime - segment.start);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: segment.start,
+ segmentIndex: i
+ };
+ }
+ }
+ }
+ return syncPoint;
+ }
+ },
+ // Stategy "Discontinuity": We have a discontinuity with a known
+ // display-time
+ {
+ name: 'Discontinuity',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoint = null;
+
+ currentTime = currentTime || 0;
+
+ if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ var lastDistance = null;
+
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var discontinuitySync = syncController.discontinuities[discontinuity];
+
+ if (discontinuitySync) {
+ var distance = Math.abs(currentTime - discontinuitySync.time);
+
+ // Once the distance begins to increase, we have passed
+ // currentTime and can stop looking for better candidates
+ if (lastDistance !== null && lastDistance < distance) {
+ break;
+ }
+
+ if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+ lastDistance = distance;
+ syncPoint = {
+ time: discontinuitySync.time,
+ segmentIndex: segmentIndex
+ };
+ }
+ }
+ }
+ }
+ return syncPoint;
+ }
+ },
+ // Stategy "Playlist": We have a playlist with a known mapping of
+ // segment index to display time
+ {
+ name: 'Playlist',
+ run: function run(syncController, playlist, duration$$1, currentTimeline, currentTime) {
+ if (playlist.syncInfo) {
+ var syncPoint = {
+ time: playlist.syncInfo.time,
+ segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence
+ };
+
+ return syncPoint;
+ }
+ return null;
+ }
+ }];
+
+ var SyncController = function (_videojs$EventTarget) {
+ inherits$3(SyncController, _videojs$EventTarget);
+
+ function SyncController() {
+ classCallCheck$3(this, SyncController);
+
+ // Segment Loader state variables...
+ // ...for synching across variants
+ var _this = possibleConstructorReturn$3(this, (SyncController.__proto__ || Object.getPrototypeOf(SyncController)).call(this));
+
+ _this.inspectCache_ = undefined;
+
+ // ...for synching across variants
+ _this.timelines = [];
+ _this.discontinuities = [];
+ _this.datetimeToDisplayTime = null;
+
+ _this.logger_ = logger('SyncController');
+ return _this;
+ }
+
+ /**
+ * Find a sync-point for the playlist specified
+ *
+ * A sync-point is defined as a known mapping from display-time to
+ * a segment-index in the current playlist.
+ *
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinite if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Object}
+ * A sync-point object
+ */
+
+ createClass$2(SyncController, [{
+ key: 'getSyncPoint',
+ value: function getSyncPoint(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = this.runStrategies_(playlist, duration$$1, currentTimeline, currentTime);
+
+ if (!syncPoints.length) {
+ // Signal that we need to attempt to get a sync-point manually
+ // by fetching a segment in the playlist and constructing
+ // a sync-point from that information
+ return null;
+ }
+
+ // Now find the sync-point that is closest to the currentTime because
+ // that should result in the most accurate guess about which segment
+ // to fetch
+ return this.selectSyncPoint_(syncPoints, { key: 'time', value: currentTime });
+ }
+
+ /**
+ * Calculate the amount of time that has expired off the playlist during playback
+ *
+ * @param {Playlist} playlist
+ * Playlist object to calculate expired from
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playling a live source)
+ * @returns {Number|null}
+ * The amount of time that has expired off the playlist during playback. Null
+ * if no sync-points for the playlist can be found.
+ */
+
+ }, {
+ key: 'getExpiredTime',
+ value: function getExpiredTime(playlist, duration$$1) {
+ if (!playlist || !playlist.segments) {
+ return null;
+ }
+
+ var syncPoints = this.runStrategies_(playlist, duration$$1, playlist.discontinuitySequence, 0);
+
+ // Without sync-points, there is not enough information to determine the expired time
+ if (!syncPoints.length) {
+ return null;
+ }
+
+ var syncPoint = this.selectSyncPoint_(syncPoints, {
+ key: 'segmentIndex',
+ value: 0
+ });
+
+ // If the sync-point is beyond the start of the playlist, we want to subtract the
+ // duration from index 0 to syncPoint.segmentIndex instead of adding.
+ if (syncPoint.segmentIndex > 0) {
+ syncPoint.time *= -1;
+ }
+
+ return Math.abs(syncPoint.time + sumDurations(playlist, syncPoint.segmentIndex, 0));
+ }
+
+ /**
+ * Runs each sync-point strategy and returns a list of sync-points returned by the
+ * strategies
+ *
+ * @private
+ * @param {Playlist} playlist
+ * The playlist that needs a sync-point
+ * @param {Number} duration
+ * Duration of the MediaSource (Infinity if playing a live source)
+ * @param {Number} currentTimeline
+ * The last timeline from which a segment was loaded
+ * @returns {Array}
+ * A list of sync-point objects
+ */
+
+ }, {
+ key: 'runStrategies_',
+ value: function runStrategies_(playlist, duration$$1, currentTimeline, currentTime) {
+ var syncPoints = [];
+
+ // Try to find a sync-point in by utilizing various strategies...
+ for (var i = 0; i < syncPointStrategies.length; i++) {
+ var strategy = syncPointStrategies[i];
+ var syncPoint = strategy.run(this, playlist, duration$$1, currentTimeline, currentTime);
+
+ if (syncPoint) {
+ syncPoint.strategy = strategy.name;
+ syncPoints.push({
+ strategy: strategy.name,
+ syncPoint: syncPoint
+ });
+ }
+ }
+
+ return syncPoints;
+ }
+
+ /**
+ * Selects the sync-point nearest the specified target
+ *
+ * @private
+ * @param {Array} syncPoints
+ * List of sync-points to select from
+ * @param {Object} target
+ * Object specifying the property and value we are targeting
+ * @param {String} target.key
+ * Specifies the property to target. Must be either 'time' or 'segmentIndex'
+ * @param {Number} target.value
+ * The value to target for the specified key.
+ * @returns {Object}
+ * The sync-point nearest the target
+ */
+
+ }, {
+ key: 'selectSyncPoint_',
+ value: function selectSyncPoint_(syncPoints, target) {
+ var bestSyncPoint = syncPoints[0].syncPoint;
+ var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
+ var bestStrategy = syncPoints[0].strategy;
+
+ for (var i = 1; i < syncPoints.length; i++) {
+ var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
+
+ if (newDistance < bestDistance) {
+ bestDistance = newDistance;
+ bestSyncPoint = syncPoints[i].syncPoint;
+ bestStrategy = syncPoints[i].strategy;
+ }
+ }
+
+ this.logger_('syncPoint for [' + target.key + ': ' + target.value + '] chosen with strategy' + (' [' + bestStrategy + ']: [time:' + bestSyncPoint.time + ',') + (' segmentIndex:' + bestSyncPoint.segmentIndex + ']'));
+
+ return bestSyncPoint;
+ }
+
+ /**
+ * Save any meta-data present on the segments when segments leave
+ * the live window to the playlist to allow for synchronization at the
+ * playlist level later.
+ *
+ * @param {Playlist} oldPlaylist - The previous active playlist
+ * @param {Playlist} newPlaylist - The updated and most current playlist
+ */
+
+ }, {
+ key: 'saveExpiredSegmentInfo',
+ value: function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
+ var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+
+ // When a segment expires from the playlist and it has a start time
+ // save that information as a possible sync-point reference in future
+ for (var i = mediaSequenceDiff - 1; i >= 0; i--) {
+ var lastRemovedSegment = oldPlaylist.segments[i];
+
+ if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
+ newPlaylist.syncInfo = {
+ mediaSequence: oldPlaylist.mediaSequence + i,
+ time: lastRemovedSegment.start
+ };
+ this.logger_('playlist refresh sync: [time:' + newPlaylist.syncInfo.time + ',' + (' mediaSequence: ' + newPlaylist.syncInfo.mediaSequence + ']'));
+ this.trigger('syncinfoupdate');
+ break;
+ }
+ }
+ }
+
+ /**
+ * Save the mapping from playlist's ProgramDateTime to display. This should
+ * only ever happen once at the start of playback.
+ *
+ * @param {Playlist} playlist - The currently active playlist
+ */
+
+ }, {
+ key: 'setDateTimeMapping',
+ value: function setDateTimeMapping(playlist) {
+ if (!this.datetimeToDisplayTime && playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
+ var playlistTimestamp = playlist.segments[0].dateTimeObject.getTime() / 1000;
+
+ this.datetimeToDisplayTime = -playlistTimestamp;
+ }
+ }
+
+ /**
+ * Reset the state of the inspection cache when we do a rendition
+ * switch
+ */
+
+ }, {
+ key: 'reset',
+ value: function reset() {
+ this.inspectCache_ = undefined;
+ }
+
+ /**
+ * Probe or inspect a fmp4 or an mpeg2-ts segment to determine the start
+ * and end of the segment in it's internal "media time". Used to generate
+ * mappings from that internal "media time" to the display time that is
+ * shown on the player.
+ *
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'probeSegmentInfo',
+ value: function probeSegmentInfo(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var playlist = segmentInfo.playlist;
+ var timingInfo = void 0;
+
+ if (segment.map) {
+ timingInfo = this.probeMp4Segment_(segmentInfo);
+ } else {
+ timingInfo = this.probeTsSegment_(segmentInfo);
+ }
+
+ if (timingInfo) {
+ if (this.calculateSegmentTimeMapping_(segmentInfo, timingInfo)) {
+ this.saveDiscontinuitySyncInfo_(segmentInfo);
+
+ // If the playlist does not have sync information yet, record that information
+ // now with segment timing information
+ if (!playlist.syncInfo) {
+ playlist.syncInfo = {
+ mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+ time: segment.start
+ };
+ }
+ }
+ }
+
+ return timingInfo;
+ }
+
+ /**
+ * Probe an fmp4 or an mpeg2-ts segment to determine the start of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeMp4Segment_',
+ value: function probeMp4Segment_(segmentInfo) {
+ var segment = segmentInfo.segment;
+ var timescales = probe.timescale(segment.map.bytes);
+ var startTime = probe.startTime(timescales, segmentInfo.bytes);
+
+ if (segmentInfo.timestampOffset !== null) {
+ segmentInfo.timestampOffset -= startTime;
+ }
+
+ return {
+ start: startTime,
+ end: startTime + segment.duration
+ };
+ }
+
+ /**
+ * Probe an mpeg2-ts segment to determine the start and end of the segment
+ * in it's internal "media time".
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ * @return {object} The start and end time of the current segment in "media time"
+ */
+
+ }, {
+ key: 'probeTsSegment_',
+ value: function probeTsSegment_(segmentInfo) {
+ var timeInfo = tsprobe(segmentInfo.bytes, this.inspectCache_);
+ var segmentStartTime = void 0;
+ var segmentEndTime = void 0;
+
+ if (!timeInfo) {
+ return null;
+ }
+
+ if (timeInfo.video && timeInfo.video.length === 2) {
+ this.inspectCache_ = timeInfo.video[1].dts;
+ segmentStartTime = timeInfo.video[0].dtsTime;
+ segmentEndTime = timeInfo.video[1].dtsTime;
+ } else if (timeInfo.audio && timeInfo.audio.length === 2) {
+ this.inspectCache_ = timeInfo.audio[1].dts;
+ segmentStartTime = timeInfo.audio[0].dtsTime;
+ segmentEndTime = timeInfo.audio[1].dtsTime;
+ }
+
+ return {
+ start: segmentStartTime,
+ end: segmentEndTime,
+ containsVideo: timeInfo.video && timeInfo.video.length === 2,
+ containsAudio: timeInfo.audio && timeInfo.audio.length === 2
+ };
+ }
+ }, {
+ key: 'timestampOffsetForTimeline',
+ value: function timestampOffsetForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].time;
+ }
+ }, {
+ key: 'mappingForTimeline',
+ value: function mappingForTimeline(timeline) {
+ if (typeof this.timelines[timeline] === 'undefined') {
+ return null;
+ }
+ return this.timelines[timeline].mapping;
+ }
+
+ /**
+ * Use the "media time" for a segment to generate a mapping to "display time" and
+ * save that display time to the segment.
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo
+ * The current active request information
+ * @param {object} timingInfo
+ * The start and end time of the current segment in "media time"
+ * @returns {Boolean}
+ * Returns false if segment time mapping could not be calculated
+ */
+
+ }, {
+ key: 'calculateSegmentTimeMapping_',
+ value: function calculateSegmentTimeMapping_(segmentInfo, timingInfo) {
+ var segment = segmentInfo.segment;
+ var mappingObj = this.timelines[segmentInfo.timeline];
+
+ if (segmentInfo.timestampOffset !== null) {
+ mappingObj = {
+ time: segmentInfo.startOfSegment,
+ mapping: segmentInfo.startOfSegment - timingInfo.start
+ };
+ this.timelines[segmentInfo.timeline] = mappingObj;
+ this.trigger('timestampoffset');
+
+ this.logger_('time mapping for timeline ' + segmentInfo.timeline + ': ' + ('[time: ' + mappingObj.time + '] [mapping: ' + mappingObj.mapping + ']'));
+
+ segment.start = segmentInfo.startOfSegment;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else if (mappingObj) {
+ segment.start = timingInfo.start + mappingObj.mapping;
+ segment.end = timingInfo.end + mappingObj.mapping;
+ } else {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Each time we have discontinuity in the playlist, attempt to calculate the location
+ * in display of the start of the discontinuity and save that. We also save an accuracy
+ * value so that we save values with the most accuracy (closest to 0.)
+ *
+ * @private
+ * @param {SegmentInfo} segmentInfo - The current active request information
+ */
+
+ }, {
+ key: 'saveDiscontinuitySyncInfo_',
+ value: function saveDiscontinuitySyncInfo_(segmentInfo) {
+ var playlist = segmentInfo.playlist;
+ var segment = segmentInfo.segment;
+
+ // If the current segment is a discontinuity then we know exactly where
+ // the start of the range and it's accuracy is 0 (greater accuracy values
+ // mean more approximation)
+ if (segment.discontinuity) {
+ this.discontinuities[segment.timeline] = {
+ time: segment.start,
+ accuracy: 0
+ };
+ } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+ // Search for future discontinuities that we can provide better timing
+ // information for and save that information for sync purposes
+ for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
+ var segmentIndex = playlist.discontinuityStarts[i];
+ var discontinuity = playlist.discontinuitySequence + i + 1;
+ var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
+ var accuracy = Math.abs(mediaIndexDiff);
+
+ if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
+ var time = void 0;
+
+ if (mediaIndexDiff < 0) {
+ time = segment.start - sumDurations(playlist, segmentInfo.mediaIndex, segmentIndex);
+ } else {
+ time = segment.end + sumDurations(playlist, segmentInfo.mediaIndex + 1, segmentIndex);
+ }
+
+ this.discontinuities[discontinuity] = {
+ time: time,
+ accuracy: accuracy
+ };
+ }
+ }
+ }
+ }
+ }]);
+ return SyncController;
+ }(videojs$1.EventTarget);
+
+ var Decrypter$1 = new shimWorker("./decrypter-worker.worker.js", function (window, document$$1) {
+ var self = this;
+ var decrypterWorker = function () {
+
+ /*
+ * pkcs7.pad
+ * https://github.com/brightcove/pkcs7
+ *
+ * Copyright (c) 2014 Brightcove
+ * Licensed under the apache2 license.
+ */
+
+ /**
+ * Returns the subarray of a Uint8Array without PKCS#7 padding.
+ * @param padded {Uint8Array} unencrypted bytes that have been padded
+ * @return {Uint8Array} the unpadded bytes
+ * @see http://tools.ietf.org/html/rfc5652
+ */
+
+ function unpad(padded) {
+ return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+ }
+
+ var classCallCheck$$1 = function classCallCheck$$1(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ };
+
+ var createClass$$1 = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+
+ var inherits$$1 = function inherits$$1(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));
+ }
+
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+ if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+ };
+
+ var possibleConstructorReturn$$1 = function possibleConstructorReturn$$1(self, call) {
+ if (!self) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self;
+ };
+
+ /**
+ * @file aes.js
+ *
+ * This file contains an adaptation of the AES decryption algorithm
+ * from the Standford Javascript Cryptography Library. That work is
+ * covered by the following copyright and permissions notice:
+ *
+ * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of the authors.
+ */
+
+ /**
+ * Expand the S-box tables.
+ *
+ * @private
+ */
+ var precompute = function precompute() {
+ var tables = [[[], [], [], [], []], [[], [], [], [], []]];
+ var encTable = tables[0];
+ var decTable = tables[1];
+ var sbox = encTable[4];
+ var sboxInv = decTable[4];
+ var i = void 0;
+ var x = void 0;
+ var xInv = void 0;
+ var d = [];
+ var th = [];
+ var x2 = void 0;
+ var x4 = void 0;
+ var x8 = void 0;
+ var s = void 0;
+ var tEnc = void 0;
+ var tDec = void 0;
+
+ // Compute double and third tables
+ for (i = 0; i < 256; i++) {
+ th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+ }
+
+ for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+ // Compute sbox
+ s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+ s = s >> 8 ^ s & 255 ^ 99;
+ sbox[x] = s;
+ sboxInv[s] = x;
+
+ // Compute MixColumns
+ x8 = d[x4 = d[x2 = d[x]]];
+ tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+ tEnc = d[s] * 0x101 ^ s * 0x1010100;
+
+ for (i = 0; i < 4; i++) {
+ encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+ decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+ }
+ }
+
+ // Compactify. Considerable speedup on Firefox.
+ for (i = 0; i < 5; i++) {
+ encTable[i] = encTable[i].slice(0);
+ decTable[i] = decTable[i].slice(0);
+ }
+ return tables;
+ };
+ var aesTables = null;
+
+ /**
+ * Schedule out an AES key for both encryption and decryption. This
+ * is a low-level class. Use a cipher mode to do bulk encryption.
+ *
+ * @class AES
+ * @param key {Array} The key as an array of 4, 6 or 8 words.
+ */
+
+ var AES = function () {
+ function AES(key) {
+ classCallCheck$$1(this, AES);
+
+ /**
+ * The expanded S-box and inverse S-box tables. These will be computed
+ * on the client so that we don't have to send them down the wire.
+ *
+ * There are two tables, _tables[0] is for encryption and
+ * _tables[1] is for decryption.
+ *
+ * The first 4 sub-tables are the expanded S-box with MixColumns. The
+ * last (_tables[01][4]) is the S-box itself.
+ *
+ * @private
+ */
+ // if we have yet to precompute the S-box tables
+ // do so now
+ if (!aesTables) {
+ aesTables = precompute();
+ }
+ // then make a copy of that object for use
+ this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+ var i = void 0;
+ var j = void 0;
+ var tmp = void 0;
+ var encKey = void 0;
+ var decKey = void 0;
+ var sbox = this._tables[0][4];
+ var decTable = this._tables[1];
+ var keyLen = key.length;
+ var rcon = 1;
+
+ if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+ throw new Error('Invalid aes key size');
+ }
+
+ encKey = key.slice(0);
+ decKey = [];
+ this._key = [encKey, decKey];
+
+ // schedule encryption keys
+ for (i = keyLen; i < 4 * keyLen + 28; i++) {
+ tmp = encKey[i - 1];
+
+ // apply sbox
+ if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+ tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
+
+ // shift rows and add rcon
+ if (i % keyLen === 0) {
+ tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+ rcon = rcon << 1 ^ (rcon >> 7) * 283;
+ }
+ }
+
+ encKey[i] = encKey[i - keyLen] ^ tmp;
+ }
+
+ // schedule decryption keys
+ for (j = 0; i; j++, i--) {
+ tmp = encKey[j & 3 ? i : i - 4];
+ if (i <= 4 || j < 4) {
+ decKey[j] = tmp;
+ } else {
+ decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+ }
+ }
+ }
+
+ /**
+ * Decrypt 16 bytes, specified as four 32-bit words.
+ *
+ * @param {Number} encrypted0 the first word to decrypt
+ * @param {Number} encrypted1 the second word to decrypt
+ * @param {Number} encrypted2 the third word to decrypt
+ * @param {Number} encrypted3 the fourth word to decrypt
+ * @param {Int32Array} out the array to write the decrypted words
+ * into
+ * @param {Number} offset the offset into the output array to start
+ * writing results
+ * @return {Array} The plaintext.
+ */
+
+ AES.prototype.decrypt = function decrypt$$1(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+ var key = this._key[1];
+ // state variables a,b,c,d are loaded with pre-whitened data
+ var a = encrypted0 ^ key[0];
+ var b = encrypted3 ^ key[1];
+ var c = encrypted2 ^ key[2];
+ var d = encrypted1 ^ key[3];
+ var a2 = void 0;
+ var b2 = void 0;
+ var c2 = void 0;
+
+ // key.length === 2 ?
+ var nInnerRounds = key.length / 4 - 2;
+ var i = void 0;
+ var kIndex = 4;
+ var table = this._tables[1];
+
+ // load up the tables
+ var table0 = table[0];
+ var table1 = table[1];
+ var table2 = table[2];
+ var table3 = table[3];
+ var sbox = table[4];
+
+ // Inner rounds. Cribbed from OpenSSL.
+ for (i = 0; i < nInnerRounds; i++) {
+ a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+ b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+ c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+ d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+ kIndex += 4;
+ a = a2;b = b2;c = c2;
+ }
+
+ // Last round.
+ for (i = 0; i < 4; i++) {
+ out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+ a2 = a;a = b;b = c;c = d;d = a2;
+ }
+ };
+
+ return AES;
+ }();
+
+ /**
+ * @file stream.js
+ */
+ /**
+ * A lightweight readable stream implemention that handles event dispatching.
+ *
+ * @class Stream
+ */
+ var Stream = function () {
+ function Stream() {
+ classCallCheck$$1(this, Stream);
+
+ this.listeners = {};
+ }
+
+ /**
+ * Add a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener the callback to be invoked when an event of
+ * the specified type occurs
+ */
+
+ Stream.prototype.on = function on(type, listener) {
+ if (!this.listeners[type]) {
+ this.listeners[type] = [];
+ }
+ this.listeners[type].push(listener);
+ };
+
+ /**
+ * Remove a listener for a specified event type.
+ *
+ * @param {String} type the event name
+ * @param {Function} listener a function previously registered for this
+ * type of event through `on`
+ * @return {Boolean} if we could turn it off or not
+ */
+
+ Stream.prototype.off = function off(type, listener) {
+ if (!this.listeners[type]) {
+ return false;
+ }
+
+ var index = this.listeners[type].indexOf(listener);
+
+ this.listeners[type].splice(index, 1);
+ return index > -1;
+ };
+
+ /**
+ * Trigger an event of the specified type on this stream. Any additional
+ * arguments to this function are passed as parameters to event listeners.
+ *
+ * @param {String} type the event name
+ */
+
+ Stream.prototype.trigger = function trigger(type) {
+ var callbacks = this.listeners[type];
+
+ if (!callbacks) {
+ return;
+ }
+
+ // Slicing the arguments on every invocation of this method
+ // can add a significant amount of overhead. Avoid the
+ // intermediate object creation for the common case of a
+ // single callback argument
+ if (arguments.length === 2) {
+ var length = callbacks.length;
+
+ for (var i = 0; i < length; ++i) {
+ callbacks[i].call(this, arguments[1]);
+ }
+ } else {
+ var args = Array.prototype.slice.call(arguments, 1);
+ var _length = callbacks.length;
+
+ for (var _i = 0; _i < _length; ++_i) {
+ callbacks[_i].apply(this, args);
+ }
+ }
+ };
+
+ /**
+ * Destroys the stream and cleans up.
+ */
+
+ Stream.prototype.dispose = function dispose() {
+ this.listeners = {};
+ };
+ /**
+ * Forwards all `data` events on this stream to the destination stream. The
+ * destination stream should provide a method `push` to receive the data
+ * events as they arrive.
+ *
+ * @param {Stream} destination the stream that will receive all `data` events
+ * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+ */
+
+ Stream.prototype.pipe = function pipe(destination) {
+ this.on('data', function (data) {
+ destination.push(data);
+ });
+ };
+
+ return Stream;
+ }();
+
+ /**
+ * @file async-stream.js
+ */
+ /**
+ * A wrapper around the Stream class to use setTiemout
+ * and run stream "jobs" Asynchronously
+ *
+ * @class AsyncStream
+ * @extends Stream
+ */
+
+ var AsyncStream$$1 = function (_Stream) {
+ inherits$$1(AsyncStream$$1, _Stream);
+
+ function AsyncStream$$1() {
+ classCallCheck$$1(this, AsyncStream$$1);
+
+ var _this = possibleConstructorReturn$$1(this, _Stream.call(this, Stream));
+
+ _this.jobs = [];
+ _this.delay = 1;
+ _this.timeout_ = null;
+ return _this;
+ }
+
+ /**
+ * process an async job
+ *
+ * @private
+ */
+
+ AsyncStream$$1.prototype.processJob_ = function processJob_() {
+ this.jobs.shift()();
+ if (this.jobs.length) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ } else {
+ this.timeout_ = null;
+ }
+ };
+
+ /**
+ * push a job into the stream
+ *
+ * @param {Function} job the job to push into the stream
+ */
+
+ AsyncStream$$1.prototype.push = function push(job) {
+ this.jobs.push(job);
+ if (!this.timeout_) {
+ this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+ }
+ };
+
+ return AsyncStream$$1;
+ }(Stream);
+
+ /**
+ * @file decrypter.js
+ *
+ * An asynchronous implementation of AES-128 CBC decryption with
+ * PKCS#7 padding.
+ */
+
+ /**
+ * Convert network-order (big-endian) bytes into their little-endian
+ * representation.
+ */
+ var ntoh = function ntoh(word) {
+ return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+ };
+
+ /**
+ * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * use for the first round of CBC.
+ * @return {Uint8Array} the decrypted bytes
+ *
+ * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+ * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+ * @see https://tools.ietf.org/html/rfc2315
+ */
+ var decrypt$$1 = function decrypt$$1(encrypted, key, initVector) {
+ // word-level access to the encrypted bytes
+ var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+
+ var decipher = new AES(Array.prototype.slice.call(key));
+
+ // byte and word-level access for the decrypted output
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var decrypted32 = new Int32Array(decrypted.buffer);
+
+ // temporary variables for working with the IV, encrypted, and
+ // decrypted data
+ var init0 = void 0;
+ var init1 = void 0;
+ var init2 = void 0;
+ var init3 = void 0;
+ var encrypted0 = void 0;
+ var encrypted1 = void 0;
+ var encrypted2 = void 0;
+ var encrypted3 = void 0;
+
+ // iteration variable
+ var wordIx = void 0;
+
+ // pull out the words of the IV to ensure we don't modify the
+ // passed-in reference and easier access
+ init0 = initVector[0];
+ init1 = initVector[1];
+ init2 = initVector[2];
+ init3 = initVector[3];
+
+ // decrypt four word sequences, applying cipher-block chaining (CBC)
+ // to each decrypted block
+ for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+ // convert big-endian (network order) words into little-endian
+ // (javascript order)
+ encrypted0 = ntoh(encrypted32[wordIx]);
+ encrypted1 = ntoh(encrypted32[wordIx + 1]);
+ encrypted2 = ntoh(encrypted32[wordIx + 2]);
+ encrypted3 = ntoh(encrypted32[wordIx + 3]);
+
+ // decrypt the block
+ decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx);
+
+ // XOR with the IV, and restore network byte-order to obtain the
+ // plaintext
+ decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+ decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+ decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+ decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3);
+
+ // setup the IV for the next round
+ init0 = encrypted0;
+ init1 = encrypted1;
+ init2 = encrypted2;
+ init3 = encrypted3;
+ }
+
+ return decrypted;
+ };
+
+ /**
+ * The `Decrypter` class that manages decryption of AES
+ * data through `AsyncStream` objects and the `decrypt`
+ * function
+ *
+ * @param {Uint8Array} encrypted the encrypted bytes
+ * @param {Uint32Array} key the bytes of the decryption key
+ * @param {Uint32Array} initVector the initialization vector (IV) to
+ * @param {Function} done the function to run when done
+ * @class Decrypter
+ */
+
+ var Decrypter$$1 = function () {
+ function Decrypter$$1(encrypted, key, initVector, done) {
+ classCallCheck$$1(this, Decrypter$$1);
+
+ var step = Decrypter$$1.STEP;
+ var encrypted32 = new Int32Array(encrypted.buffer);
+ var decrypted = new Uint8Array(encrypted.byteLength);
+ var i = 0;
+
+ this.asyncStream_ = new AsyncStream$$1();
+
+ // split up the encryption job and do the individual chunks asynchronously
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ for (i = step; i < encrypted32.length; i += step) {
+ initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+ this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+ }
+ // invoke the done() callback when everything is finished
+ this.asyncStream_.push(function () {
+ // remove pkcs#7 padding from the decrypted bytes
+ done(null, unpad(decrypted));
+ });
+ }
+
+ /**
+ * a getter for step the maximum number of bytes to process at one time
+ *
+ * @return {Number} the value of step 32000
+ */
+
+ /**
+ * @private
+ */
+ Decrypter$$1.prototype.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
+ return function () {
+ var bytes = decrypt$$1(encrypted, key, initVector);
+
+ decrypted.set(bytes, encrypted.byteOffset);
+ };
+ };
+
+ createClass$$1(Decrypter$$1, null, [{
+ key: 'STEP',
+ get: function get$$1() {
+ // 4 * 8000;
+ return 32000;
+ }
+ }]);
+ return Decrypter$$1;
+ }();
+
+ /**
+ * @file bin-utils.js
+ */
+
+ /**
+ * Creates an object for sending to a web worker modifying properties that are TypedArrays
+ * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+ *
+ * @param {Object} message
+ * Object of properties and values to send to the web worker
+ * @return {Object}
+ * Modified message with TypedArray values expanded
+ * @function createTransferableMessage
+ */
+ var createTransferableMessage = function createTransferableMessage(message) {
+ var transferable = {};
+
+ Object.keys(message).forEach(function (key) {
+ var value = message[key];
+
+ if (ArrayBuffer.isView(value)) {
+ transferable[key] = {
+ bytes: value.buffer,
+ byteOffset: value.byteOffset,
+ byteLength: value.byteLength
+ };
+ } else {
+ transferable[key] = value;
+ }
+ });
+
+ return transferable;
+ };
+
+ /**
+ * Our web worker interface so that things can talk to aes-decrypter
+ * that will be running in a web worker. the scope is passed to this by
+ * webworkify.
+ *
+ * @param {Object} self
+ * the scope for the web worker
+ */
+ var DecrypterWorker = function DecrypterWorker(self) {
+ self.onmessage = function (event) {
+ var data = event.data;
+ var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
+ var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
+ var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
+
+ /* eslint-disable no-new, handle-callback-err */
+ new Decrypter$$1(encrypted, key, iv, function (err, bytes) {
+ self.postMessage(createTransferableMessage({
+ source: data.source,
+ decrypted: bytes
+ }), [bytes.buffer]);
+ });
+ /* eslint-enable */
+ };
+ };
+
+ var decrypterWorker = new DecrypterWorker(self);
+
+ return decrypterWorker;
+ }();
+ });
+
+ /**
+ * Convert the properties of an HLS track into an audioTrackKind.
+ *
+ * @private
+ */
+ var audioTrackKind_ = function audioTrackKind_(properties) {
+ var kind = properties.default ? 'main' : 'alternative';
+
+ if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
+ kind = 'main-desc';
+ }
+
+ return kind;
+ };
+
+ /**
+ * Pause provided segment loader and playlist loader if active
+ *
+ * @param {SegmentLoader} segmentLoader
+ * SegmentLoader to pause
+ * @param {Object} mediaType
+ * Active media type
+ * @function stopLoaders
+ */
+ var stopLoaders = function stopLoaders(segmentLoader, mediaType) {
+ segmentLoader.abort();
+ segmentLoader.pause();
+
+ if (mediaType && mediaType.activePlaylistLoader) {
+ mediaType.activePlaylistLoader.pause();
+ mediaType.activePlaylistLoader = null;
+ }
+ };
+
+ /**
+ * Start loading provided segment loader and playlist loader
+ *
+ * @param {PlaylistLoader} playlistLoader
+ * PlaylistLoader to start loading
+ * @param {Object} mediaType
+ * Active media type
+ * @function startLoaders
+ */
+ var startLoaders = function startLoaders(playlistLoader, mediaType) {
+ // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
+ // playlist loader
+ mediaType.activePlaylistLoader = playlistLoader;
+ playlistLoader.load();
+ };
+
+ /**
+ * Returns a function to be called when the media group changes. It performs a
+ * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
+ * change of group is merely a rendition switch of the same content at another encoding,
+ * rather than a change of content, such as switching audio from English to Spanish.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a non-destructive resync of SegmentLoader when the active media
+ * group changes.
+ * @function onGroupChanged
+ */
+ var onGroupChanged = function onGroupChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad[type],
+ mainSegmentLoader = _settings$segmentLoad.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ if (previousActiveLoader) {
+ // The previous group had a playlist loader but the new active group does not
+ // this means we are switching from demuxed to muxed audio. In this case we want to
+ // do a destructive reset of the main segment loader and not restart the audio
+ // loaders.
+ mainSegmentLoader.resetEverything();
+ }
+ return;
+ }
+
+ // Non-destructive resync
+ segmentLoader.resyncLoader();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+ };
+
+ /**
+ * Returns a function to be called when the media track changes. It performs a
+ * destructive reset of the SegmentLoader to ensure we start loading as close to
+ * currentTime as possible.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Handler for a destructive reset of SegmentLoader when the active media
+ * track changes.
+ * @function onTrackChanged
+ */
+ var onTrackChanged = function onTrackChanged(type, settings) {
+ return function () {
+ var _settings$segmentLoad2 = settings.segmentLoaders,
+ segmentLoader = _settings$segmentLoad2[type],
+ mainSegmentLoader = _settings$segmentLoad2.main,
+ mediaType = settings.mediaTypes[type];
+
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup(activeTrack);
+ var previousActiveLoader = mediaType.activePlaylistLoader;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ if (!activeGroup) {
+ // there is no group active so we do not want to restart loaders
+ return;
+ }
+
+ if (!activeGroup.playlistLoader) {
+ // when switching from demuxed audio/video to muxed audio/video (noted by no playlist
+ // loader for the audio group), we want to do a destructive reset of the main segment
+ // loader and not restart the audio loaders
+ mainSegmentLoader.resetEverything();
+ return;
+ }
+
+ if (previousActiveLoader === activeGroup.playlistLoader) {
+ // Nothing has actually changed. This can happen because track change events can fire
+ // multiple times for a "single" change. One for enabling the new active track, and
+ // one for disabling the track that was active
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ return;
+ }
+
+ if (segmentLoader.track) {
+ // For WebVTT, set the new text track in the segmentloader
+ segmentLoader.track(activeTrack);
+ }
+
+ // destructive reset
+ segmentLoader.resetEverything();
+
+ startLoaders(activeGroup.playlistLoader, mediaType);
+ };
+ };
+
+ var onError = {
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning (or error if the playlist is blacklisted) to
+ * console and switches back to default audio track.
+ * @function onError.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type],
+ blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;
+
+ stopLoaders(segmentLoader, mediaType);
+
+ // switch back to default audio track
+ var activeTrack = mediaType.activeTrack();
+ var activeGroup = mediaType.activeGroup();
+ var id = (activeGroup.filter(function (group) {
+ return group.default;
+ })[0] || activeGroup[0]).id;
+ var defaultTrack = mediaType.tracks[id];
+
+ if (activeTrack === defaultTrack) {
+ // Default track encountered an error. All we can do now is blacklist the current
+ // rendition and hope another will switch audio groups
+ blacklistCurrentPlaylist({
+ message: 'Problem encountered loading the default audio track.'
+ });
+ return;
+ }
+
+ videojs$1.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
+
+ for (var trackId in mediaType.tracks) {
+ mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
+ }
+
+ mediaType.onTrackChanged();
+ };
+ },
+ /**
+ * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+ * an error.
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Error handler. Logs warning to console and disables the active subtitle track
+ * @function onError.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ videojs$1.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
+
+ stopLoaders(segmentLoader, mediaType);
+
+ var track = mediaType.activeTrack();
+
+ if (track) {
+ track.mode = 'disabled';
+ }
+
+ mediaType.onTrackChanged();
+ };
+ }
+ };
+
+ var setupListeners = {
+ /**
+ * Setup event listeners for audio playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.AUDIO
+ */
+ AUDIO: function AUDIO(type, playlistLoader, settings) {
+ if (!playlistLoader) {
+ // no playlist loader means audio will be muxed with the video
+ return;
+ }
+
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup event listeners for subtitle playlist loader
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {PlaylistLoader|null} playlistLoader
+ * PlaylistLoader to register listeners on
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function setupListeners.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {
+ var tech = settings.tech,
+ requestOptions = settings.requestOptions,
+ segmentLoader = settings.segmentLoaders[type],
+ mediaType = settings.mediaTypes[type];
+
+ playlistLoader.on('loadedmetadata', function () {
+ var media = playlistLoader.media();
+
+ segmentLoader.playlist(media, requestOptions);
+ segmentLoader.track(mediaType.activeTrack());
+
+ // if the video is already playing, or if this isn't a live video and preload
+ // permits, start downloading segments
+ if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('loadedplaylist', function () {
+ segmentLoader.playlist(playlistLoader.media(), requestOptions);
+
+ // If the player isn't paused, ensure that the segment loader is running
+ if (!tech.paused()) {
+ segmentLoader.load();
+ }
+ });
+
+ playlistLoader.on('error', onError[type](type, settings));
+ }
+ };
+
+ var byGroupId = function byGroupId(type, groupId) {
+ return function (playlist) {
+ return playlist.attributes[type] === groupId;
+ };
+ };
+
+ var byResolvedUri = function byResolvedUri(resolvedUri) {
+ return function (playlist) {
+ return playlist.resolvedUri === resolvedUri;
+ };
+ };
+
+ var initialize = {
+ /**
+ * Setup PlaylistLoaders and AudioTracks for the audio groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.AUDIO
+ */
+ 'AUDIO': function AUDIO(type, settings) {
+ var hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ _settings$master = settings.master,
+ mediaGroups = _settings$master.mediaGroups,
+ playlists = _settings$master.playlists,
+ _settings$mediaTypes$ = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$.groups,
+ tracks = _settings$mediaTypes$.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ // force a default if we have none
+
+ if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
+ mediaGroups[type] = { main: { default: { default: true } } };
+ }
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ // List of playlists that have an AUDIO attribute value matching the current
+ // group ID
+ var groupPlaylists = playlists.filter(byGroupId(type, groupId));
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // List of playlists for the current group ID that have a matching uri with
+ // this alternate audio variant
+ var matchingPlaylists = groupPlaylists.filter(byResolvedUri(properties.resolvedUri));
+
+ if (matchingPlaylists.length) {
+ // If there is a playlist that has the same uri as this audio variant, assume
+ // that the playlist is audio only. We delete the resolvedUri property here
+ // to prevent a playlist loader from being created so that we don't have
+ // both the main and audio segment loaders loading the same audio segments
+ // from the same playlist.
+ delete properties.resolvedUri;
+ }
+
+ var playlistLoader = void 0;
+
+ if (properties.resolvedUri) {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (properties.playlists && sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ } else {
+ // no resolvedUri means the audio is muxed with the video when using this
+ // audio track
+ playlistLoader = null;
+ }
+
+ properties = videojs$1.mergeOptions({ id: variantLabel, playlistLoader: playlistLoader }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = new videojs$1.AudioTrack({
+ id: variantLabel,
+ kind: audioTrackKind_(properties),
+ enabled: false,
+ language: properties.language,
+ default: properties.default,
+ label: variantLabel
+ });
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup PlaylistLoaders and TextTracks for the subtitle groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize.SUBTITLES
+ */
+ 'SUBTITLES': function SUBTITLES(type, settings) {
+ var tech = settings.tech,
+ hls = settings.hls,
+ sourceType = settings.sourceType,
+ segmentLoader = settings.segmentLoaders[type],
+ withCredentials = settings.requestOptions.withCredentials,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$2 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$2.groups,
+ tracks = _settings$mediaTypes$2.tracks,
+ masterPlaylistLoader = settings.masterPlaylistLoader;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ if (mediaGroups[type][groupId][variantLabel].forced) {
+ // Subtitle playlists with the forced attribute are not selectable in Safari.
+ // According to Apple's HLS Authoring Specification:
+ // If content has forced subtitles and regular subtitles in a given language,
+ // the regular subtitles track in that language MUST contain both the forced
+ // subtitles and the regular subtitles for that language.
+ // Because of this requirement and that Safari does not add forced subtitles,
+ // forced subtitles are skipped here to maintain consistent experience across
+ // all platforms
+ continue;
+ }
+
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ var playlistLoader = void 0;
+
+ if (sourceType === 'hls') {
+ playlistLoader = new PlaylistLoader(properties.resolvedUri, hls, withCredentials);
+ } else if (sourceType === 'dash') {
+ playlistLoader = new DashPlaylistLoader(properties.playlists[0], hls, withCredentials, masterPlaylistLoader);
+ }
+
+ properties = videojs$1.mergeOptions({
+ id: variantLabel,
+ playlistLoader: playlistLoader
+ }, properties);
+
+ setupListeners[type](type, properties.playlistLoader, settings);
+
+ groups[groupId].push(properties);
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: variantLabel,
+ kind: 'subtitles',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+
+ // setup single error event handler for the segment loader
+ segmentLoader.on('error', onError[type](type, settings));
+ },
+ /**
+ * Setup TextTracks for the closed-caption groups
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @function initialize['CLOSED-CAPTIONS']
+ */
+ 'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {
+ var tech = settings.tech,
+ mediaGroups = settings.master.mediaGroups,
+ _settings$mediaTypes$3 = settings.mediaTypes[type],
+ groups = _settings$mediaTypes$3.groups,
+ tracks = _settings$mediaTypes$3.tracks;
+
+ for (var groupId in mediaGroups[type]) {
+ if (!groups[groupId]) {
+ groups[groupId] = [];
+ }
+
+ for (var variantLabel in mediaGroups[type][groupId]) {
+ var properties = mediaGroups[type][groupId][variantLabel];
+
+ // We only support CEA608 captions for now, so ignore anything that
+ // doesn't use a CCx INSTREAM-ID
+ if (!properties.instreamId.match(/CC\d/)) {
+ continue;
+ }
+
+ // No PlaylistLoader is required for Closed-Captions because the captions are
+ // embedded within the video stream
+ groups[groupId].push(videojs$1.mergeOptions({ id: variantLabel }, properties));
+
+ if (typeof tracks[variantLabel] === 'undefined') {
+ var track = tech.addRemoteTextTrack({
+ id: properties.instreamId,
+ kind: 'captions',
+ enabled: false,
+ language: properties.language,
+ label: variantLabel
+ }, false).track;
+
+ tracks[variantLabel] = track;
+ }
+ }
+ }
+ }
+ };
+
+ /**
+ * Returns a function used to get the active group of the provided type
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media group for the provided type. Takes an
+ * optional parameter {TextTrack} track. If no track is provided, a list of all
+ * variants in the group, otherwise the variant corresponding to the provided
+ * track is returned.
+ * @function activeGroup
+ */
+ var activeGroup = function activeGroup(type, settings) {
+ return function (track) {
+ var masterPlaylistLoader = settings.masterPlaylistLoader,
+ groups = settings.mediaTypes[type].groups;
+
+ var media = masterPlaylistLoader.media();
+
+ if (!media) {
+ return null;
+ }
+
+ var variants = null;
+
+ if (media.attributes[type]) {
+ variants = groups[media.attributes[type]];
+ }
+
+ variants = variants || groups.main;
+
+ if (typeof track === 'undefined') {
+ return variants;
+ }
+
+ if (track === null) {
+ // An active track was specified so a corresponding group is expected. track === null
+ // means no track is currently active so there is no corresponding group
+ return null;
+ }
+
+ return variants.filter(function (props) {
+ return props.id === track.id;
+ })[0] || null;
+ };
+ };
+
+ var activeTrack = {
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.AUDIO
+ */
+ AUDIO: function AUDIO(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].enabled) {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ },
+ /**
+ * Returns a function used to get the active track of type provided
+ *
+ * @param {String} type
+ * MediaGroup type
+ * @param {Object} settings
+ * Object containing required information for media groups
+ * @return {Function}
+ * Function that returns the active media track for the provided type. Returns
+ * null if no track is active
+ * @function activeTrack.SUBTITLES
+ */
+ SUBTITLES: function SUBTITLES(type, settings) {
+ return function () {
+ var tracks = settings.mediaTypes[type].tracks;
+
+ for (var id in tracks) {
+ if (tracks[id].mode === 'showing') {
+ return tracks[id];
+ }
+ }
+
+ return null;
+ };
+ }
+ };
+
+ /**
+ * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
+ * Closed-Captions) specified in the master manifest.
+ *
+ * @param {Object} settings
+ * Object containing required information for setting up the media groups
+ * @param {SegmentLoader} settings.segmentLoaders.AUDIO
+ * Audio segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.SUBTITLES
+ * Subtitle segment loader
+ * @param {SegmentLoader} settings.segmentLoaders.main
+ * Main segment loader
+ * @param {Tech} settings.tech
+ * The tech of the player
+ * @param {Object} settings.requestOptions
+ * XHR request options used by the segment loaders
+ * @param {PlaylistLoader} settings.masterPlaylistLoader
+ * PlaylistLoader for the master source
+ * @param {HlsHandler} settings.hls
+ * HLS SourceHandler
+ * @param {Object} settings.master
+ * The parsed master manifest
+ * @param {Object} settings.mediaTypes
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @param {Function} settings.blacklistCurrentPlaylist
+ * Blacklists the current rendition and forces a rendition switch.
+ * @function setupMediaGroups
+ */
+ var setupMediaGroups = function setupMediaGroups(settings) {
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ initialize[type](type, settings);
+ });
+
+ var mediaTypes = settings.mediaTypes,
+ masterPlaylistLoader = settings.masterPlaylistLoader,
+ tech = settings.tech,
+ hls = settings.hls;
+
+ // setup active group and track getters and change event handlers
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ mediaTypes[type].activeGroup = activeGroup(type, settings);
+ mediaTypes[type].activeTrack = activeTrack[type](type, settings);
+ mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
+ mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
+ });
+
+ // DO NOT enable the default subtitle or caption track.
+ // DO enable the default audio track
+ var audioGroup = mediaTypes.AUDIO.activeGroup();
+ var groupId = (audioGroup.filter(function (group) {
+ return group.default;
+ })[0] || audioGroup[0]).id;
+
+ mediaTypes.AUDIO.tracks[groupId].enabled = true;
+ mediaTypes.AUDIO.onTrackChanged();
+
+ masterPlaylistLoader.on('mediachange', function () {
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ return mediaTypes[type].onGroupChanged();
+ });
+ });
+
+ // custom audio track change event handler for usage event
+ var onAudioTrackChanged = function onAudioTrackChanged() {
+ mediaTypes.AUDIO.onTrackChanged();
+ tech.trigger({ type: 'usage', name: 'hls-audio-change' });
+ };
+
+ tech.audioTracks().addEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+
+ hls.on('dispose', function () {
+ tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
+ tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+ });
+
+ // clear existing audio tracks and add the ones we just created
+ tech.clearTracks('audio');
+
+ for (var id in mediaTypes.AUDIO.tracks) {
+ tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
+ }
+ };
+
+ /**
+ * Creates skeleton object used to store the loaders, tracks, and utility methods for each
+ * media type
+ *
+ * @return {Object}
+ * Object to store the loaders, tracks, and utility methods for each media type
+ * @function createMediaTypes
+ */
+ var createMediaTypes = function createMediaTypes() {
+ var mediaTypes = {};
+
+ ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
+ mediaTypes[type] = {
+ groups: {},
+ tracks: {},
+ activePlaylistLoader: null,
+ activeGroup: noop$1,
+ activeTrack: noop$1,
+ onGroupChanged: noop$1,
+ onTrackChanged: noop$1
+ };
+ });
+
+ return mediaTypes;
+ };
+
+ /**
+ * @file master-playlist-controller.js
+ */
+
+ var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;
+
+ var Hls = void 0;
+
+ // SegmentLoader stats that need to have each loader's
+ // values summed to calculate the final value
+ var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred'];
+ var sumLoaderStat = function sumLoaderStat(stat) {
+ return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
+ };
+
+ /**
+ * the master playlist controller controller all interactons
+ * between playlists and segmentloaders. At this time this mainly
+ * involves a master playlist and a series of audio playlists
+ * if they are available
+ *
+ * @class MasterPlaylistController
+ * @extends videojs.EventTarget
+ */
+ var MasterPlaylistController = function (_videojs$EventTarget) {
+ inherits$3(MasterPlaylistController, _videojs$EventTarget);
+
+ function MasterPlaylistController(options) {
+ classCallCheck$3(this, MasterPlaylistController);
+
+ var _this = possibleConstructorReturn$3(this, (MasterPlaylistController.__proto__ || Object.getPrototypeOf(MasterPlaylistController)).call(this));
+
+ var url = options.url,
+ withCredentials = options.withCredentials,
+ tech = options.tech,
+ bandwidth = options.bandwidth,
+ externHls = options.externHls,
+ useCueTags = options.useCueTags,
+ blacklistDuration = options.blacklistDuration,
+ enableLowInitialPlaylist = options.enableLowInitialPlaylist,
+ sourceType = options.sourceType,
+ seekTo = options.seekTo;
+
+ if (!url) {
+ throw new Error('A non-empty playlist URL is required');
+ }
+
+ Hls = externHls;
+
+ _this.withCredentials = withCredentials;
+ _this.tech_ = tech;
+ _this.hls_ = tech.hls;
+ _this.seekTo_ = seekTo;
+ _this.sourceType_ = sourceType;
+ _this.useCueTags_ = useCueTags;
+ _this.blacklistDuration = blacklistDuration;
+ _this.enableLowInitialPlaylist = enableLowInitialPlaylist;
+ if (_this.useCueTags_) {
+ _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');
+ _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
+ }
+
+ _this.requestOptions_ = {
+ withCredentials: _this.withCredentials,
+ timeout: null
+ };
+
+ _this.mediaTypes_ = createMediaTypes();
+
+ _this.mediaSource = new videojs$1.MediaSource();
+
+ // load the media source into the player
+ _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_.bind(_this));
+
+ _this.seekable_ = videojs$1.createTimeRanges();
+ _this.hasPlayed_ = function () {
+ return false;
+ };
+
+ _this.syncController_ = new SyncController(options);
+ _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
+ kind: 'metadata',
+ label: 'segment-metadata'
+ }, false).track;
+
+ _this.decrypter_ = new Decrypter$1();
+ _this.inbandTextTracks_ = {};
+
+ var segmentLoaderSettings = {
+ hls: _this.hls_,
+ mediaSource: _this.mediaSource,
+ currentTime: _this.tech_.currentTime.bind(_this.tech_),
+ seekable: function seekable$$1() {
+ return _this.seekable();
+ },
+ seeking: function seeking() {
+ return _this.tech_.seeking();
+ },
+ duration: function duration$$1() {
+ return _this.mediaSource.duration;
+ },
+ hasPlayed: function hasPlayed() {
+ return _this.hasPlayed_();
+ },
+ goalBufferLength: function goalBufferLength() {
+ return _this.goalBufferLength();
+ },
+ bandwidth: bandwidth,
+ syncController: _this.syncController_,
+ decrypter: _this.decrypter_,
+ sourceType: _this.sourceType_,
+ inbandTextTracks: _this.inbandTextTracks_
+ };
+
+ _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(url, _this.hls_, _this.withCredentials) : new PlaylistLoader(url, _this.hls_, _this.withCredentials);
+ _this.setupMasterPlaylistLoaderListeners_();
+
+ // setup segment loaders
+ // combined audio/video or just video when alternate audio track is selected
+ _this.mainSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ segmentMetadataTrack: _this.segmentMetadataTrack_,
+ loaderType: 'main'
+ }), options);
+
+ // alternate audio track
+ _this.audioSegmentLoader_ = new SegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'audio'
+ }), options);
+
+ _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs$1.mergeOptions(segmentLoaderSettings, {
+ loaderType: 'vtt'
+ }), options);
+
+ _this.setupSegmentLoaderListeners_();
+
+ // Create SegmentLoader stat-getters
+ loaderStats.forEach(function (stat) {
+ _this[stat + '_'] = sumLoaderStat.bind(_this, stat);
+ });
+
+ _this.logger_ = logger('MPC');
+
+ _this.masterPlaylistLoader_.load();
+ return _this;
+ }
+
+ /**
+ * Register event handlers on the master playlist loader. A helper
+ * function for construction time.
+ *
+ * @private
+ */
+
+ createClass$2(MasterPlaylistController, [{
+ key: 'setupMasterPlaylistLoaderListeners_',
+ value: function setupMasterPlaylistLoaderListeners_() {
+ var _this2 = this;
+
+ this.masterPlaylistLoader_.on('loadedmetadata', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // if this isn't a live video and preload permits, start
+ // downloading segments
+ if (media.endList && _this2.tech_.preload() !== 'none') {
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+ _this2.mainSegmentLoader_.load();
+ }
+
+ setupMediaGroups({
+ sourceType: _this2.sourceType_,
+ segmentLoaders: {
+ AUDIO: _this2.audioSegmentLoader_,
+ SUBTITLES: _this2.subtitleSegmentLoader_,
+ main: _this2.mainSegmentLoader_
+ },
+ tech: _this2.tech_,
+ requestOptions: _this2.requestOptions_,
+ masterPlaylistLoader: _this2.masterPlaylistLoader_,
+ hls: _this2.hls_,
+ master: _this2.master(),
+ mediaTypes: _this2.mediaTypes_,
+ blacklistCurrentPlaylist: _this2.blacklistCurrentPlaylist.bind(_this2)
+ });
+
+ _this2.triggerPresenceUsage_(_this2.master(), media);
+
+ try {
+ _this2.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create SourceBuffers', e);
+ return _this2.mediaSource.endOfStream('decode');
+ }
+ _this2.setupFirstPlay();
+
+ _this2.trigger('selectedinitialmedia');
+ });
+
+ this.masterPlaylistLoader_.on('loadedplaylist', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+
+ if (!updatedPlaylist) {
+ // blacklist any variants that are not supported by the browser before selecting
+ // an initial media as the playlist selectors do not consider browser support
+ _this2.excludeUnsupportedVariants_();
+
+ var selectedMedia = void 0;
+
+ if (_this2.enableLowInitialPlaylist) {
+ selectedMedia = _this2.selectInitialPlaylist();
+ }
+
+ if (!selectedMedia) {
+ selectedMedia = _this2.selectPlaylist();
+ }
+
+ _this2.initialMedia_ = selectedMedia;
+ _this2.masterPlaylistLoader_.media(_this2.initialMedia_);
+ return;
+ }
+
+ if (_this2.useCueTags_) {
+ _this2.updateAdCues_(updatedPlaylist);
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `mediachange`
+ _this2.mainSegmentLoader_.playlist(updatedPlaylist, _this2.requestOptions_);
+ _this2.updateDuration();
+
+ // If the player isn't paused, ensure that the segment loader is running,
+ // as it is possible that it was temporarily stopped while waiting for
+ // a playlist (e.g., in case the playlist errored and we re-requested it).
+ if (!_this2.tech_.paused()) {
+ _this2.mainSegmentLoader_.load();
+ if (_this2.audioSegmentLoader_) {
+ _this2.audioSegmentLoader_.load();
+ }
+ }
+
+ if (!updatedPlaylist.endList) {
+ var addSeekableRange = function addSeekableRange() {
+ var seekable$$1 = _this2.seekable();
+
+ if (seekable$$1.length !== 0) {
+ _this2.mediaSource.addSeekableRange_(seekable$$1.start(0), seekable$$1.end(0));
+ }
+ };
+
+ if (_this2.duration() !== Infinity) {
+ var onDurationchange = function onDurationchange() {
+ if (_this2.duration() === Infinity) {
+ addSeekableRange();
+ } else {
+ _this2.tech_.one('durationchange', onDurationchange);
+ }
+ };
+
+ _this2.tech_.one('durationchange', onDurationchange);
+ } else {
+ addSeekableRange();
+ }
+ }
+ });
+
+ this.masterPlaylistLoader_.on('error', function () {
+ _this2.blacklistCurrentPlaylist(_this2.masterPlaylistLoader_.error);
+ });
+
+ this.masterPlaylistLoader_.on('mediachanging', function () {
+ _this2.mainSegmentLoader_.abort();
+ _this2.mainSegmentLoader_.pause();
+ });
+
+ this.masterPlaylistLoader_.on('mediachange', function () {
+ var media = _this2.masterPlaylistLoader_.media();
+ var requestTimeout = _this2.masterPlaylistLoader_.targetDuration * 1.5 * 1000;
+
+ // If we don't have any more available playlists, we don't want to
+ // timeout the request.
+ if (isLowestEnabledRendition(_this2.masterPlaylistLoader_.master, _this2.masterPlaylistLoader_.media())) {
+ _this2.requestOptions_.timeout = 0;
+ } else {
+ _this2.requestOptions_.timeout = requestTimeout;
+ }
+
+ // TODO: Create a new event on the PlaylistLoader that signals
+ // that the segments have changed in some way and use that to
+ // update the SegmentLoader instead of doing it twice here and
+ // on `loadedplaylist`
+ _this2.mainSegmentLoader_.playlist(media, _this2.requestOptions_);
+
+ _this2.mainSegmentLoader_.load();
+
+ _this2.tech_.trigger({
+ type: 'mediachange',
+ bubbles: true
+ });
+ });
+
+ this.masterPlaylistLoader_.on('playlistunchanged', function () {
+ var updatedPlaylist = _this2.masterPlaylistLoader_.media();
+ var playlistOutdated = _this2.stuckAtPlaylistEnd_(updatedPlaylist);
+
+ if (playlistOutdated) {
+ // Playlist has stopped updating and we're stuck at its end. Try to
+ // blacklist it and switch to another playlist in the hope that that
+ // one is updating (and give the player a chance to re-adjust to the
+ // safe live point).
+ _this2.blacklistCurrentPlaylist({
+ message: 'Playlist no longer updating.'
+ });
+ // useful for monitoring QoS
+ _this2.tech_.trigger('playliststuck');
+ }
+ });
+
+ this.masterPlaylistLoader_.on('renditiondisabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-disabled' });
+ });
+ this.masterPlaylistLoader_.on('renditionenabled', function () {
+ _this2.tech_.trigger({ type: 'usage', name: 'hls-rendition-enabled' });
+ });
+ }
+
+ /**
+ * A helper function for triggerring presence usage events once per source
+ *
+ * @private
+ */
+
+ }, {
+ key: 'triggerPresenceUsage_',
+ value: function triggerPresenceUsage_(master, media) {
+ var mediaGroups = master.mediaGroups || {};
+ var defaultDemuxed = true;
+ var audioGroupKeys = Object.keys(mediaGroups.AUDIO);
+
+ for (var mediaGroup in mediaGroups.AUDIO) {
+ for (var label in mediaGroups.AUDIO[mediaGroup]) {
+ var properties = mediaGroups.AUDIO[mediaGroup][label];
+
+ if (!properties.uri) {
+ defaultDemuxed = false;
+ }
+ }
+ }
+
+ if (defaultDemuxed) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-demuxed' });
+ }
+
+ if (Object.keys(mediaGroups.SUBTITLES).length) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-webvtt' });
+ }
+
+ if (Hls.Playlist.isAes(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-aes' });
+ }
+
+ if (Hls.Playlist.isFmp4(media)) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-fmp4' });
+ }
+
+ if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-alternate-audio' });
+ }
+
+ if (this.useCueTags_) {
+ this.tech_.trigger({ type: 'usage', name: 'hls-playlist-cue-tags' });
+ }
+ }
+ /**
+ * Register event handlers on the segment loaders. A helper function
+ * for construction time.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSegmentLoaderListeners_',
+ value: function setupSegmentLoaderListeners_() {
+ var _this3 = this;
+
+ this.mainSegmentLoader_.on('bandwidthupdate', function () {
+ var nextPlaylist = _this3.selectPlaylist();
+ var currentPlaylist = _this3.masterPlaylistLoader_.media();
+ var buffered = _this3.tech_.buffered();
+ var forwardBuffer = buffered.length ? buffered.end(buffered.length - 1) - _this3.tech_.currentTime() : 0;
+
+ var bufferLowWaterLine = _this3.bufferLowWaterLine();
+
+ // If the playlist is live, then we want to not take low water line into account.
+ // This is because in LIVE, the player plays 3 segments from the end of the
+ // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
+ // in those segments, a viewer will never experience a rendition upswitch.
+ if (!currentPlaylist.endList ||
+ // For the same reason as LIVE, we ignore the low water line when the VOD
+ // duration is below the max potential low water line
+ _this3.duration() < Config.MAX_BUFFER_LOW_WATER_LINE ||
+ // we want to switch down to lower resolutions quickly to continue playback, but
+ nextPlaylist.attributes.BANDWIDTH < currentPlaylist.attributes.BANDWIDTH ||
+ // ensure we have some buffer before we switch up to prevent us running out of
+ // buffer while loading a higher rendition.
+ forwardBuffer >= bufferLowWaterLine) {
+ _this3.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ _this3.tech_.trigger('bandwidthupdate');
+ });
+ this.mainSegmentLoader_.on('progress', function () {
+ _this3.trigger('progress');
+ });
+
+ this.mainSegmentLoader_.on('error', function () {
+ _this3.blacklistCurrentPlaylist(_this3.mainSegmentLoader_.error());
+ });
+
+ this.mainSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('timestampoffset', function () {
+ _this3.tech_.trigger({ type: 'usage', name: 'hls-timestamp-offset' });
+ });
+ this.audioSegmentLoader_.on('syncinfoupdate', function () {
+ _this3.onSyncInfoUpdate_();
+ });
+
+ this.mainSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+
+ this.mainSegmentLoader_.on('earlyabort', function () {
+ _this3.blacklistCurrentPlaylist({
+ message: 'Aborted early because there isn\'t enough bandwidth to complete the ' + 'request without rebuffering.'
+ }, ABORT_EARLY_BLACKLIST_SECONDS);
+ });
+
+ this.mainSegmentLoader_.on('reseteverything', function () {
+ // If playing an MTS stream, a videojs.MediaSource is listening for
+ // hls-reset to reset caption parsing state in the transmuxer
+ _this3.tech_.trigger('hls-reset');
+ });
+
+ this.mainSegmentLoader_.on('segmenttimemapping', function (event) {
+ // If playing an MTS stream in html, a videojs.MediaSource is listening for
+ // hls-segment-time-mapping update its internal mapping of stream to display time
+ _this3.tech_.trigger({
+ type: 'hls-segment-time-mapping',
+ mapping: event.mapping
+ });
+ });
+
+ this.audioSegmentLoader_.on('ended', function () {
+ _this3.onEndOfStream();
+ });
+ }
+ }, {
+ key: 'mediaSecondsLoaded_',
+ value: function mediaSecondsLoaded_() {
+ return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
+ }
+
+ /**
+ * Call load on our SegmentLoaders
+ */
+
+ }, {
+ key: 'load',
+ value: function load() {
+ this.mainSegmentLoader_.load();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.load();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.load();
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions without performing destructive actions, like
+ * removing already buffered content
+ *
+ * @private
+ */
+
+ }, {
+ key: 'smoothQualityChange_',
+ value: function smoothQualityChange_() {
+ var media = this.selectPlaylist();
+
+ if (media !== this.masterPlaylistLoader_.media()) {
+ this.masterPlaylistLoader_.media(media);
+
+ this.mainSegmentLoader_.resetLoader();
+ // don't need to reset audio as it is reset when media changes
+ }
+ }
+
+ /**
+ * Re-tune playback quality level for the current player
+ * conditions. This method will perform destructive actions like removing
+ * already buffered content in order to readjust the currently active
+ * playlist quickly. This is good for manual quality changes
+ *
+ * @private
+ */
+
+ }, {
+ key: 'fastQualityChange_',
+ value: function fastQualityChange_() {
+ var _this4 = this;
+
+ var media = this.selectPlaylist();
+
+ if (media === this.masterPlaylistLoader_.media()) {
+ return;
+ }
+
+ this.masterPlaylistLoader_.media(media);
+
+ // Delete all buffered data to allow an immediate quality switch, then seek to give
+ // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
+ // ahead is roughly the minimum that will accomplish this across a variety of content
+ // in IE and Edge, but seeking in place is sufficient on all other browsers)
+ // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
+ // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
+ this.mainSegmentLoader_.resetEverything(function () {
+ // Since this is not a typical seek, we avoid the seekTo method which can cause segments
+ // from the previously enabled rendition to load before the new playlist has finished loading
+ if (videojs$1.browser.IE_VERSION || videojs$1.browser.IS_EDGE) {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime() + 0.04);
+ } else {
+ _this4.tech_.setCurrentTime(_this4.tech_.currentTime());
+ }
+ });
+
+ // don't need to reset audio as it is reset when media changes
+ }
+
+ /**
+ * Begin playback.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ if (this.setupFirstPlay()) {
+ return;
+ }
+
+ if (this.tech_.ended()) {
+ this.seekTo_(0);
+ }
+
+ if (this.hasPlayed_()) {
+ this.load();
+ }
+
+ var seekable$$1 = this.tech_.seekable();
+
+ // if the viewer has paused and we fell out of the live window,
+ // seek forward to the live point
+ if (this.tech_.duration() === Infinity) {
+ if (this.tech_.currentTime() < seekable$$1.start(0)) {
+ return this.seekTo_(seekable$$1.end(seekable$$1.length - 1));
+ }
+ }
+ }
+
+ /**
+ * Seek to the latest media position if this is a live video and the
+ * player and video are loaded and initialized.
+ */
+
+ }, {
+ key: 'setupFirstPlay',
+ value: function setupFirstPlay() {
+ var _this5 = this;
+
+ var media = this.masterPlaylistLoader_.media();
+
+ // Check that everything is ready to begin buffering for the first call to play
+ // If 1) there is no active media
+ // 2) the player is paused
+ // 3) the first play has already been setup
+ // then exit early
+ if (!media || this.tech_.paused() || this.hasPlayed_()) {
+ return false;
+ }
+
+ // when the video is a live stream
+ if (!media.endList) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // without a seekable range, the player cannot seek to begin buffering at the live
+ // point
+ return false;
+ }
+
+ if (videojs$1.browser.IE_VERSION && this.tech_.readyState() === 0) {
+ // IE11 throws an InvalidStateError if you try to set currentTime while the
+ // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
+ this.tech_.one('loadedmetadata', function () {
+ _this5.trigger('firstplay');
+ _this5.seekTo_(seekable$$1.end(0));
+ _this5.hasPlayed_ = function () {
+ return true;
+ };
+ });
+
+ return false;
+ }
+
+ // trigger firstplay to inform the source handler to ignore the next seek event
+ this.trigger('firstplay');
+ // seek to the live point
+ this.seekTo_(seekable$$1.end(0));
+ }
+
+ this.hasPlayed_ = function () {
+ return true;
+ };
+ // we can begin loading now that everything is ready
+ this.load();
+ return true;
+ }
+
+ /**
+ * handle the sourceopen event on the MediaSource
+ *
+ * @private
+ */
+
+ }, {
+ key: 'handleSourceOpen_',
+ value: function handleSourceOpen_() {
+ // Only attempt to create the source buffer if none already exist.
+ // handleSourceOpen is also called when we are "re-opening" a source buffer
+ // after `endOfStream` has been called (in response to a seek for instance)
+ try {
+ this.setupSourceBuffers_();
+ } catch (e) {
+ videojs$1.log.warn('Failed to create Source Buffers', e);
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ // if autoplay is enabled, begin playback. This is duplicative of
+ // code in video.js but is required because play() must be invoked
+ // *after* the media source has opened.
+ if (this.tech_.autoplay()) {
+ var playPromise = this.tech_.play();
+
+ // Catch/silence error when a pause interrupts a play request
+ // on browsers which return a promise
+ if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
+ playPromise.then(null, function (e) {});
+ }
+ }
+
+ this.trigger('sourceopen');
+ }
+
+ /**
+ * Calls endOfStream on the media source when all active stream types have called
+ * endOfStream
+ *
+ * @param {string} streamType
+ * Stream type of the segment loader that called endOfStream
+ * @private
+ */
+
+ }, {
+ key: 'onEndOfStream',
+ value: function onEndOfStream() {
+ var isEndOfStream = this.mainSegmentLoader_.ended_;
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ // if the audio playlist loader exists, then alternate audio is active
+ if (!this.mainSegmentLoader_.startingMedia_ || this.mainSegmentLoader_.startingMedia_.containsVideo) {
+ // if we do not know if the main segment loader contains video yet or if we
+ // definitively know the main segment loader contains video, then we need to wait
+ // for both main and audio segment loaders to call endOfStream
+ isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
+ } else {
+ // otherwise just rely on the audio loader
+ isEndOfStream = this.audioSegmentLoader_.ended_;
+ }
+ }
+
+ if (isEndOfStream) {
+ this.mediaSource.endOfStream();
+ }
+ }
+
+ /**
+ * Check if a playlist has stopped being updated
+ * @param {Object} playlist the media playlist object
+ * @return {boolean} whether the playlist has stopped being updated or not
+ */
+
+ }, {
+ key: 'stuckAtPlaylistEnd_',
+ value: function stuckAtPlaylistEnd_(playlist) {
+ var seekable$$1 = this.seekable();
+
+ if (!seekable$$1.length) {
+ // playlist doesn't have enough information to determine whether we are stuck
+ return false;
+ }
+
+ var expired = this.syncController_.getExpiredTime(playlist, this.mediaSource.duration);
+
+ if (expired === null) {
+ return false;
+ }
+
+ // does not use the safe live end to calculate playlist end, since we
+ // don't want to say we are stuck while there is still content
+ var absolutePlaylistEnd = Hls.Playlist.playlistEnd(playlist, expired);
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (!buffered.length) {
+ // return true if the playhead reached the absolute end of the playlist
+ return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
+ }
+ var bufferedEnd = buffered.end(buffered.length - 1);
+
+ // return true if there is too little buffer left and buffer has reached absolute
+ // end of playlist
+ return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
+ }
+
+ /**
+ * Blacklists a playlist when an error occurs for a set amount of time
+ * making it unavailable for selection by the rendition selection algorithm
+ * and then forces a new playlist (rendition) selection.
+ *
+ * @param {Object=} error an optional error that may include the playlist
+ * to blacklist
+ * @param {Number=} blacklistDuration an optional number of seconds to blacklist the
+ * playlist
+ */
+
+ }, {
+ key: 'blacklistCurrentPlaylist',
+ value: function blacklistCurrentPlaylist() {
+ var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var blacklistDuration = arguments[1];
+
+ var currentPlaylist = void 0;
+ var nextPlaylist = void 0;
+
+ // If the `error` was generated by the playlist loader, it will contain
+ // the playlist we were trying to load (but failed) and that should be
+ // blacklisted instead of the currently selected playlist which is likely
+ // out-of-date in this scenario
+ currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();
+
+ blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration;
+
+ // If there is no current playlist, then an error occurred while we were
+ // trying to load the master OR while we were disposing of the tech
+ if (!currentPlaylist) {
+ this.error = error;
+
+ try {
+ return this.mediaSource.endOfStream('network');
+ } catch (e) {
+ return this.trigger('error');
+ }
+ }
+
+ var isFinalRendition = this.masterPlaylistLoader_.master.playlists.filter(isEnabled).length === 1;
+
+ if (isFinalRendition) {
+ // Never blacklisting this playlist because it's final rendition
+ videojs$1.log.warn('Problem encountered with the current ' + 'HLS playlist. Trying again since it is the final playlist.');
+
+ this.tech_.trigger('retryplaylist');
+ return this.masterPlaylistLoader_.load(isFinalRendition);
+ }
+ // Blacklist this playlist
+ currentPlaylist.excludeUntil = Date.now() + blacklistDuration * 1000;
+ this.tech_.trigger('blacklistplaylist');
+ this.tech_.trigger({ type: 'usage', name: 'hls-rendition-blacklisted' });
+
+ // Select a new playlist
+ nextPlaylist = this.selectPlaylist();
+ videojs$1.log.warn('Problem encountered with the current HLS playlist.' + (error.message ? ' ' + error.message : '') + ' Switching to another playlist.');
+
+ return this.masterPlaylistLoader_.media(nextPlaylist);
+ }
+
+ /**
+ * Pause all segment loaders
+ */
+
+ }, {
+ key: 'pauseLoading',
+ value: function pauseLoading() {
+ this.mainSegmentLoader_.pause();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.pause();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.pause();
+ }
+ }
+
+ /**
+ * set the current time on all segment loaders
+ *
+ * @param {TimeRange} currentTime the current time to set
+ * @return {TimeRange} the current time
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ var buffered = findRange(this.tech_.buffered(), currentTime);
+
+ if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {
+ // return immediately if the metadata is not ready yet
+ return 0;
+ }
+
+ // it's clearly an edge-case but don't thrown an error if asked to
+ // seek within an empty playlist
+ if (!this.masterPlaylistLoader_.media().segments) {
+ return 0;
+ }
+
+ // In flash playback, the segment loaders should be reset on every seek, even
+ // in buffer seeks. If the seek location is already buffered, continue buffering as
+ // usual
+ // TODO: redo this comment
+ if (buffered && buffered.length) {
+ return currentTime;
+ }
+
+ // cancel outstanding requests so we begin buffering at the new
+ // location
+ this.mainSegmentLoader_.resetEverything();
+ this.mainSegmentLoader_.abort();
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ this.audioSegmentLoader_.resetEverything();
+ this.audioSegmentLoader_.abort();
+ }
+ if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+ this.subtitleSegmentLoader_.resetEverything();
+ this.subtitleSegmentLoader_.abort();
+ }
+
+ // start segment loader loading in case they are paused
+ this.load();
+ }
+
+ /**
+ * get the current duration
+ *
+ * @return {TimeRange} the duration
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ if (!this.masterPlaylistLoader_) {
+ return 0;
+ }
+
+ if (this.mediaSource) {
+ return this.mediaSource.duration;
+ }
+
+ return Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ }
+
+ /**
+ * check the seekable range
+ *
+ * @return {TimeRange} the seekable range
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.seekable_;
+ }
+ }, {
+ key: 'onSyncInfoUpdate_',
+ value: function onSyncInfoUpdate_() {
+ var mainSeekable = void 0;
+ var audioSeekable = void 0;
+
+ if (!this.masterPlaylistLoader_) {
+ return;
+ }
+
+ var media = this.masterPlaylistLoader_.media();
+
+ if (!media) {
+ return;
+ }
+
+ var expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ // not enough information to update seekable
+ return;
+ }
+
+ mainSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (mainSeekable.length === 0) {
+ return;
+ }
+
+ if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+ media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
+ expired = this.syncController_.getExpiredTime(media, this.mediaSource.duration);
+
+ if (expired === null) {
+ return;
+ }
+
+ audioSeekable = Hls.Playlist.seekable(media, expired);
+
+ if (audioSeekable.length === 0) {
+ return;
+ }
+ }
+
+ if (!audioSeekable) {
+ // seekable has been calculated based on buffering video data so it
+ // can be returned directly
+ this.seekable_ = mainSeekable;
+ } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
+ // seekables are pretty far off, rely on main
+ this.seekable_ = mainSeekable;
+ } else {
+ this.seekable_ = videojs$1.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
+ }
+
+ this.logger_('seekable updated [' + printableRange(this.seekable_) + ']');
+
+ this.tech_.trigger('seekablechanged');
+ }
+
+ /**
+ * Update the player duration
+ */
+
+ }, {
+ key: 'updateDuration',
+ value: function updateDuration() {
+ var _this6 = this;
+
+ var oldDuration = this.mediaSource.duration;
+ var newDuration = Hls.Playlist.duration(this.masterPlaylistLoader_.media());
+ var buffered = this.tech_.buffered();
+ var setDuration = function setDuration() {
+ _this6.mediaSource.duration = newDuration;
+ _this6.tech_.trigger('durationchange');
+
+ _this6.mediaSource.removeEventListener('sourceopen', setDuration);
+ };
+
+ if (buffered.length > 0) {
+ newDuration = Math.max(newDuration, buffered.end(buffered.length - 1));
+ }
+
+ // if the duration has changed, invalidate the cached value
+ if (oldDuration !== newDuration) {
+ // update the duration
+ if (this.mediaSource.readyState !== 'open') {
+ this.mediaSource.addEventListener('sourceopen', setDuration);
+ } else {
+ setDuration();
+ }
+ }
+ }
+
+ /**
+ * dispose of the MasterPlaylistController and everything
+ * that it controls
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ var _this7 = this;
+
+ this.decrypter_.terminate();
+ this.masterPlaylistLoader_.dispose();
+ this.mainSegmentLoader_.dispose();
+
+ ['AUDIO', 'SUBTITLES'].forEach(function (type) {
+ var groups = _this7.mediaTypes_[type].groups;
+
+ for (var id in groups) {
+ groups[id].forEach(function (group) {
+ if (group.playlistLoader) {
+ group.playlistLoader.dispose();
+ }
+ });
+ }
+ });
+
+ this.audioSegmentLoader_.dispose();
+ this.subtitleSegmentLoader_.dispose();
+ }
+
+ /**
+ * return the master playlist object if we have one
+ *
+ * @return {Object} the master playlist object that we parsed
+ */
+
+ }, {
+ key: 'master',
+ value: function master() {
+ return this.masterPlaylistLoader_.master;
+ }
+
+ /**
+ * return the currently selected playlist
+ *
+ * @return {Object} the currently selected playlist object that we parsed
+ */
+
+ }, {
+ key: 'media',
+ value: function media() {
+ // playlist loader will not return media if it has not been fully loaded
+ return this.masterPlaylistLoader_.media() || this.initialMedia_;
+ }
+
+ /**
+ * setup our internal source buffers on our segment Loaders
+ *
+ * @private
+ */
+
+ }, {
+ key: 'setupSourceBuffers_',
+ value: function setupSourceBuffers_() {
+ var media = this.masterPlaylistLoader_.media();
+ var mimeTypes = void 0;
+
+ // wait until a media playlist is available and the Media Source is
+ // attached
+ if (!media || this.mediaSource.readyState !== 'open') {
+ return;
+ }
+
+ mimeTypes = mimeTypesForPlaylist(this.masterPlaylistLoader_.master, media);
+ if (mimeTypes.length < 1) {
+ this.error = 'No compatible SourceBuffer configuration for the variant stream:' + media.resolvedUri;
+ return this.mediaSource.endOfStream('decode');
+ }
+
+ this.configureLoaderMimeTypes_(mimeTypes);
+ // exclude any incompatible variant streams from future playlist
+ // selection
+ this.excludeIncompatibleVariants_(media);
+ }
+ }, {
+ key: 'configureLoaderMimeTypes_',
+ value: function configureLoaderMimeTypes_(mimeTypes) {
+ // If the content is demuxed, we can't start appending segments to a source buffer
+ // until both source buffers are set up, or else the browser may not let us add the
+ // second source buffer (it will assume we are playing either audio only or video
+ // only).
+ var sourceBufferEmitter =
+ // If there is more than one mime type
+ mimeTypes.length > 1 &&
+ // and the first mime type does not have muxed video and audio
+ mimeTypes[0].indexOf(',') === -1 &&
+ // and the two mime types are different (they can be the same in the case of audio
+ // only with alternate audio)
+ mimeTypes[0] !== mimeTypes[1] ?
+ // then we want to wait on the second source buffer
+ new videojs$1.EventTarget() :
+ // otherwise there is no need to wait as the content is either audio only,
+ // video only, or muxed content.
+ null;
+
+ this.mainSegmentLoader_.mimeType(mimeTypes[0], sourceBufferEmitter);
+ if (mimeTypes[1]) {
+ this.audioSegmentLoader_.mimeType(mimeTypes[1], sourceBufferEmitter);
+ }
+ }
+
+ /**
+ * Blacklists playlists with codecs that are unsupported by the browser.
+ */
+
+ }, {
+ key: 'excludeUnsupportedVariants_',
+ value: function excludeUnsupportedVariants_() {
+ this.master().playlists.forEach(function (variant) {
+ if (variant.attributes.CODECS && window_1.MediaSource && window_1.MediaSource.isTypeSupported && !window_1.MediaSource.isTypeSupported('video/mp4; codecs="' + mapLegacyAvcCodecs(variant.attributes.CODECS) + '"')) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+
+ /**
+ * Blacklist playlists that are known to be codec or
+ * stream-incompatible with the SourceBuffer configuration. For
+ * instance, Media Source Extensions would cause the video element to
+ * stall waiting for video data if you switched from a variant with
+ * video and audio to an audio-only one.
+ *
+ * @param {Object} media a media playlist compatible with the current
+ * set of SourceBuffers. Variants in the current master playlist that
+ * do not appear to have compatible codec or stream configurations
+ * will be excluded from the default playlist selection algorithm
+ * indefinitely.
+ * @private
+ */
+
+ }, {
+ key: 'excludeIncompatibleVariants_',
+ value: function excludeIncompatibleVariants_(media) {
+ var codecCount = 2;
+ var videoCodec = null;
+ var codecs = void 0;
+
+ if (media.attributes.CODECS) {
+ codecs = parseCodecs(media.attributes.CODECS);
+ videoCodec = codecs.videoCodec;
+ codecCount = codecs.codecCount;
+ }
+
+ this.master().playlists.forEach(function (variant) {
+ var variantCodecs = {
+ codecCount: 2,
+ videoCodec: null
+ };
+
+ if (variant.attributes.CODECS) {
+ variantCodecs = parseCodecs(variant.attributes.CODECS);
+ }
+
+ // if the streams differ in the presence or absence of audio or
+ // video, they are incompatible
+ if (variantCodecs.codecCount !== codecCount) {
+ variant.excludeUntil = Infinity;
+ }
+
+ // if h.264 is specified on the current playlist, some flavor of
+ // it must be specified on all compatible variants
+ if (variantCodecs.videoCodec !== videoCodec) {
+ variant.excludeUntil = Infinity;
+ }
+ });
+ }
+ }, {
+ key: 'updateAdCues_',
+ value: function updateAdCues_(media) {
+ var offset = 0;
+ var seekable$$1 = this.seekable();
+
+ if (seekable$$1.length) {
+ offset = seekable$$1.start(0);
+ }
+
+ updateAdCues(media, this.cueTagsTrack_, offset);
+ }
+
+ /**
+ * Calculates the desired forward buffer length based on current time
+ *
+ * @return {Number} Desired forward buffer length in seconds
+ */
+
+ }, {
+ key: 'goalBufferLength',
+ value: function goalBufferLength() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.GOAL_BUFFER_LENGTH;
+ var rate = Config.GOAL_BUFFER_LENGTH_RATE;
+ var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+
+ /**
+ * Calculates the desired buffer low water line based on current time
+ *
+ * @return {Number} Desired buffer low water line in seconds
+ */
+
+ }, {
+ key: 'bufferLowWaterLine',
+ value: function bufferLowWaterLine() {
+ var currentTime = this.tech_.currentTime();
+ var initial = Config.BUFFER_LOW_WATER_LINE;
+ var rate = Config.BUFFER_LOW_WATER_LINE_RATE;
+ var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
+
+ return Math.min(initial + currentTime * rate, max);
+ }
+ }]);
+ return MasterPlaylistController;
+ }(videojs$1.EventTarget);
+
+ /**
+ * Returns a function that acts as the Enable/disable playlist function.
+ *
+ * @param {PlaylistLoader} loader - The master playlist loader
+ * @param {String} playlistUri - uri of the playlist
+ * @param {Function} changePlaylistFn - A function to be called after a
+ * playlist's enabled-state has been changed. Will NOT be called if a
+ * playlist's enabled-state is unchanged
+ * @param {Boolean=} enable - Value to set the playlist enabled-state to
+ * or if undefined returns the current enabled-state for the playlist
+ * @return {Function} Function for setting/getting enabled
+ */
+ var enableFunction = function enableFunction(loader, playlistUri, changePlaylistFn) {
+ return function (enable) {
+ var playlist = loader.master.playlists[playlistUri];
+ var incompatible = isIncompatible(playlist);
+ var currentlyEnabled = isEnabled(playlist);
+
+ if (typeof enable === 'undefined') {
+ return currentlyEnabled;
+ }
+
+ if (enable) {
+ delete playlist.disabled;
+ } else {
+ playlist.disabled = true;
+ }
+
+ if (enable !== currentlyEnabled && !incompatible) {
+ // Ensure the outside world knows about our changes
+ changePlaylistFn();
+ if (enable) {
+ loader.trigger('renditionenabled');
+ } else {
+ loader.trigger('renditiondisabled');
+ }
+ }
+ return enable;
+ };
+ };
+
+ /**
+ * The representation object encapsulates the publicly visible information
+ * in a media playlist along with a setter/getter-type function (enabled)
+ * for changing the enabled-state of a particular playlist entry
+ *
+ * @class Representation
+ */
+
+ var Representation = function Representation(hlsHandler, playlist, id) {
+ classCallCheck$3(this, Representation);
+
+ // Get a reference to a bound version of fastQualityChange_
+ var fastChangeFunction = hlsHandler.masterPlaylistController_.fastQualityChange_.bind(hlsHandler.masterPlaylistController_);
+
+ // some playlist attributes are optional
+ if (playlist.attributes.RESOLUTION) {
+ var resolution = playlist.attributes.RESOLUTION;
+
+ this.width = resolution.width;
+ this.height = resolution.height;
+ }
+
+ this.bandwidth = playlist.attributes.BANDWIDTH;
+
+ // The id is simply the ordinality of the media playlist
+ // within the master playlist
+ this.id = id;
+
+ // Partially-apply the enableFunction to create a playlist-
+ // specific variant
+ this.enabled = enableFunction(hlsHandler.playlists, playlist.uri, fastChangeFunction);
+ };
+
+ /**
+ * A mixin function that adds the `representations` api to an instance
+ * of the HlsHandler class
+ * @param {HlsHandler} hlsHandler - An instance of HlsHandler to add the
+ * representation API into
+ */
+
+ var renditionSelectionMixin = function renditionSelectionMixin(hlsHandler) {
+ var playlists = hlsHandler.playlists;
+
+ // Add a single API-specific function to the HlsHandler instance
+ hlsHandler.representations = function () {
+ return playlists.master.playlists.filter(function (media) {
+ return !isIncompatible(media);
+ }).map(function (e, i) {
+ return new Representation(hlsHandler, e, e.uri);
+ });
+ };
+ };
+
+ /**
+ * @file playback-watcher.js
+ *
+ * Playback starts, and now my watch begins. It shall not end until my death. I shall
+ * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
+ * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
+ * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
+ * my life and honor to the Playback Watch, for this Player and all the Players to come.
+ */
+
+ // Set of events that reset the playback-watcher time check logic and clear the timeout
+ var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
+
+ /**
+ * @class PlaybackWatcher
+ */
+
+ var PlaybackWatcher = function () {
+ /**
+ * Represents an PlaybackWatcher object.
+ * @constructor
+ * @param {object} options an object that includes the tech and settings
+ */
+ function PlaybackWatcher(options) {
+ var _this = this;
+
+ classCallCheck$3(this, PlaybackWatcher);
+
+ this.tech_ = options.tech;
+ this.seekable = options.seekable;
+ this.seekTo = options.seekTo;
+
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = null;
+ this.timer_ = null;
+ this.checkCurrentTimeTimeout_ = null;
+ this.logger_ = logger('PlaybackWatcher');
+
+ this.logger_('initialize');
+
+ var canPlayHandler = function canPlayHandler() {
+ return _this.monitorCurrentTime_();
+ };
+ var waitingHandler = function waitingHandler() {
+ return _this.techWaiting_();
+ };
+ var cancelTimerHandler = function cancelTimerHandler() {
+ return _this.cancelTimer_();
+ };
+ var fixesBadSeeksHandler = function fixesBadSeeksHandler() {
+ return _this.fixesBadSeeks_();
+ };
+
+ this.tech_.on('seekablechanged', fixesBadSeeksHandler);
+ this.tech_.on('waiting', waitingHandler);
+ this.tech_.on(timerCancelEvents, cancelTimerHandler);
+ this.tech_.on('canplay', canPlayHandler);
+
+ // Define the dispose function to clean up our events
+ this.dispose = function () {
+ _this.logger_('dispose');
+ _this.tech_.off('seekablechanged', fixesBadSeeksHandler);
+ _this.tech_.off('waiting', waitingHandler);
+ _this.tech_.off(timerCancelEvents, cancelTimerHandler);
+ _this.tech_.off('canplay', canPlayHandler);
+ if (_this.checkCurrentTimeTimeout_) {
+ window_1.clearTimeout(_this.checkCurrentTimeTimeout_);
+ }
+ _this.cancelTimer_();
+ };
+ }
+
+ /**
+ * Periodically check current time to see if playback stopped
+ *
+ * @private
+ */
+
+ createClass$2(PlaybackWatcher, [{
+ key: 'monitorCurrentTime_',
+ value: function monitorCurrentTime_() {
+ this.checkCurrentTime_();
+
+ if (this.checkCurrentTimeTimeout_) {
+ window_1.clearTimeout(this.checkCurrentTimeTimeout_);
+ }
+
+ // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+ this.checkCurrentTimeTimeout_ = window_1.setTimeout(this.monitorCurrentTime_.bind(this), 250);
+ }
+
+ /**
+ * The purpose of this function is to emulate the "waiting" event on
+ * browsers that do not emit it when they are waiting for more
+ * data to continue playback
+ *
+ * @private
+ */
+
+ }, {
+ key: 'checkCurrentTime_',
+ value: function checkCurrentTime_() {
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = this.tech_.currentTime();
+ return;
+ }
+
+ if (this.tech_.paused() || this.tech_.seeking()) {
+ return;
+ }
+
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+
+ if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
+ // If current time is at the end of the final buffered region, then any playback
+ // stall is most likely caused by buffering in a low bandwidth environment. The tech
+ // should fire a `waiting` event in this scenario, but due to browser and tech
+ // inconsistencies. Calling `techWaiting_` here allows us to simulate
+ // responding to a native `waiting` event when the tech fails to emit one.
+ return this.techWaiting_();
+ }
+
+ if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ this.waiting_();
+ } else if (currentTime === this.lastRecordedTime) {
+ this.consecutiveUpdates++;
+ } else {
+ this.consecutiveUpdates = 0;
+ this.lastRecordedTime = currentTime;
+ }
+ }
+
+ /**
+ * Cancels any pending timers and resets the 'timeupdate' mechanism
+ * designed to detect that we are stalled
+ *
+ * @private
+ */
+
+ }, {
+ key: 'cancelTimer_',
+ value: function cancelTimer_() {
+ this.consecutiveUpdates = 0;
+
+ if (this.timer_) {
+ this.logger_('cancelTimer_');
+ clearTimeout(this.timer_);
+ }
+
+ this.timer_ = null;
+ }
+
+ /**
+ * Fixes situations where there's a bad seek
+ *
+ * @return {Boolean} whether an action was taken to fix the seek
+ * @private
+ */
+
+ }, {
+ key: 'fixesBadSeeks_',
+ value: function fixesBadSeeks_() {
+ var seeking = this.tech_.seeking();
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+ var seekTo = void 0;
+
+ if (seeking && this.afterSeekableWindow_(seekable, currentTime)) {
+ var seekableEnd = seekable.end(seekable.length - 1);
+
+ // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
+ seekTo = seekableEnd;
+ }
+
+ if (seeking && this.beforeSeekableWindow_(seekable, currentTime)) {
+ var seekableStart = seekable.start(0);
+
+ // sync to the beginning of the live window
+ // provide a buffer of .1 seconds to handle rounding/imprecise numbers
+ seekTo = seekableStart + SAFE_TIME_DELTA;
+ }
+
+ if (typeof seekTo !== 'undefined') {
+ this.logger_('Trying to seek outside of seekable at time ' + currentTime + ' with ' + ('seekable range ' + printableRange(seekable) + '. Seeking to ') + (seekTo + '.'));
+
+ this.seekTo(seekTo);
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Handler for situations when we determine the player is waiting.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'waiting_',
+ value: function waiting_() {
+ if (this.techWaiting_()) {
+ return;
+ }
+
+ // All tech waiting checks failed. Use last resort correction
+ var currentTime = this.tech_.currentTime();
+ var buffered = this.tech_.buffered();
+ var currentRange = findRange(buffered, currentTime);
+
+ // Sometimes the player can stall for unknown reasons within a contiguous buffered
+ // region with no indication that anything is amiss (seen in Firefox). Seeking to
+ // currentTime is usually enough to kickstart the player. This checks that the player
+ // is currently within a buffered region before attempting a corrective seek.
+ // Chrome does not appear to continue `timeupdate` events after a `waiting` event
+ // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
+ // make sure there is ~3 seconds of forward buffer before taking any corrective action
+ // to avoid triggering an `unknownwaiting` event when the network is slow.
+ if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ this.logger_('Stopped at ' + currentTime + ' while inside a buffered region ' + ('[' + currentRange.start(0) + ' -> ' + currentRange.end(0) + ']. Attempting to resume ') + 'playback by seeking to the current time.');
+
+ // unknown waiting corrections may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-unknown-waiting' });
+ return;
+ }
+ }
+
+ /**
+ * Handler for situations when the tech fires a `waiting` event
+ *
+ * @return {Boolean}
+ * True if an action (or none) was needed to correct the waiting. False if no
+ * checks passed
+ * @private
+ */
+
+ }, {
+ key: 'techWaiting_',
+ value: function techWaiting_() {
+ var seekable = this.seekable();
+ var currentTime = this.tech_.currentTime();
+
+ if (this.tech_.seeking() && this.fixesBadSeeks_()) {
+ // Tech is seeking or bad seek fixed, no action needed
+ return true;
+ }
+
+ if (this.tech_.seeking() || this.timer_ !== null) {
+ // Tech is seeking or already waiting on another action, no action needed
+ return true;
+ }
+
+ if (this.beforeSeekableWindow_(seekable, currentTime)) {
+ var livePoint = seekable.end(seekable.length - 1);
+
+ this.logger_('Fell out of live window at time ' + currentTime + '. Seeking to ' + ('live point (seekable end) ' + livePoint));
+ this.cancelTimer_();
+ this.seekTo(livePoint);
+
+ // live window resyncs may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-live-resync' });
+ return true;
+ }
+
+ var buffered = this.tech_.buffered();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ if (this.videoUnderflow_(nextRange, buffered, currentTime)) {
+ // Even though the video underflowed and was stuck in a gap, the audio overplayed
+ // the gap, leading currentTime into a buffered range. Seeking to currentTime
+ // allows the video to catch up to the audio position without losing any audio
+ // (only suffering ~3 seconds of frozen video and a pause in audio playback).
+ this.cancelTimer_();
+ this.seekTo(currentTime);
+
+ // video underflow may be useful for monitoring QoS
+ this.tech_.trigger({ type: 'usage', name: 'hls-video-underflow' });
+ return true;
+ }
+
+ // check for gap
+ if (nextRange.length > 0) {
+ var difference = nextRange.start(0) - currentTime;
+
+ this.logger_('Stopped at ' + currentTime + ', setting timer for ' + difference + ', seeking ' + ('to ' + nextRange.start(0)));
+
+ this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);
+ return true;
+ }
+
+ // All checks failed. Returning false to indicate failure to correct waiting
+ return false;
+ }
+ }, {
+ key: 'afterSeekableWindow_',
+ value: function afterSeekableWindow_(seekable, currentTime) {
+ if (!seekable.length) {
+ // we can't make a solid case if there's no seekable, default to false
+ return false;
+ }
+
+ if (currentTime > seekable.end(seekable.length - 1) + SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'beforeSeekableWindow_',
+ value: function beforeSeekableWindow_(seekable, currentTime) {
+ if (seekable.length &&
+ // can't fall before 0 and 0 seekable start identifies VOD stream
+ seekable.start(0) > 0 && currentTime < seekable.start(0) - SAFE_TIME_DELTA) {
+ return true;
+ }
+
+ return false;
+ }
+ }, {
+ key: 'videoUnderflow_',
+ value: function videoUnderflow_(nextRange, buffered, currentTime) {
+ if (nextRange.length === 0) {
+ // Even if there is no available next range, there is still a possibility we are
+ // stuck in a gap due to video underflow.
+ var gap = this.gapFromVideoUnderflow_(buffered, currentTime);
+
+ if (gap) {
+ this.logger_('Encountered a gap in video from ' + gap.start + ' to ' + gap.end + '. ' + ('Seeking to current time ' + currentTime));
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Timer callback. If playback still has not proceeded, then we seek
+ * to the start of the next buffered region.
+ *
+ * @private
+ */
+
+ }, {
+ key: 'skipTheGap_',
+ value: function skipTheGap_(scheduledCurrentTime) {
+ var buffered = this.tech_.buffered();
+ var currentTime = this.tech_.currentTime();
+ var nextRange = findNextRange(buffered, currentTime);
+
+ this.cancelTimer_();
+
+ if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
+ return;
+ }
+
+ this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0));
+
+ // only seek if we still have not played
+ this.seekTo(nextRange.start(0) + TIME_FUDGE_FACTOR);
+
+ this.tech_.trigger({ type: 'usage', name: 'hls-gap-skip' });
+ }
+ }, {
+ key: 'gapFromVideoUnderflow_',
+ value: function gapFromVideoUnderflow_(buffered, currentTime) {
+ // At least in Chrome, if there is a gap in the video buffer, the audio will continue
+ // playing for ~3 seconds after the video gap starts. This is done to account for
+ // video buffer underflow/underrun (note that this is not done when there is audio
+ // buffer underflow/underrun -- in that case the video will stop as soon as it
+ // encounters the gap, as audio stalls are more noticeable/jarring to a user than
+ // video stalls). The player's time will reflect the playthrough of audio, so the
+ // time will appear as if we are in a buffered region, even if we are stuck in a
+ // "gap."
+ //
+ // Example:
+ // video buffer: 0 => 10.1, 10.2 => 20
+ // audio buffer: 0 => 20
+ // overall buffer: 0 => 10.1, 10.2 => 20
+ // current time: 13
+ //
+ // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
+ // however, the audio continued playing until it reached ~3 seconds past the gap
+ // (13 seconds), at which point it stops as well. Since current time is past the
+ // gap, findNextRange will return no ranges.
+ //
+ // To check for this issue, we see if there is a gap that starts somewhere within
+ // a 3 second range (3 seconds +/- 1 second) back from our current time.
+ var gaps = findGaps(buffered);
+
+ for (var i = 0; i < gaps.length; i++) {
+ var start = gaps.start(i);
+ var end = gaps.end(i);
+
+ // gap is starts no more than 4 seconds back
+ if (currentTime - start < 4 && currentTime - start > 2) {
+ return {
+ start: start,
+ end: end
+ };
+ }
+ }
+
+ return null;
+ }
+ }]);
+ return PlaybackWatcher;
+ }();
+
+ var defaultOptions = {
+ errorInterval: 30,
+ getSource: function getSource(next) {
+ var tech = this.tech({ IWillNotUseThisInPlugins: true });
+ var sourceObj = tech.currentSource_;
+
+ return next(sourceObj);
+ }
+ };
+
+ /**
+ * Main entry point for the plugin
+ *
+ * @param {Player} player a reference to a videojs Player instance
+ * @param {Object} [options] an object with plugin options
+ * @private
+ */
+ var initPlugin = function initPlugin(player, options) {
+ var lastCalled = 0;
+ var seekTo = 0;
+ var localOptions = videojs$1.mergeOptions(defaultOptions, options);
+
+ player.ready(function () {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-initialized' });
+ });
+
+ /**
+ * Player modifications to perform that must wait until `loadedmetadata`
+ * has been triggered
+ *
+ * @private
+ */
+ var loadedMetadataHandler = function loadedMetadataHandler() {
+ if (seekTo) {
+ player.currentTime(seekTo);
+ }
+ };
+
+ /**
+ * Set the source on the player element, play, and seek if necessary
+ *
+ * @param {Object} sourceObj An object specifying the source url and mime-type to play
+ * @private
+ */
+ var setSource = function setSource(sourceObj) {
+ if (sourceObj === null || sourceObj === undefined) {
+ return;
+ }
+ seekTo = player.duration() !== Infinity && player.currentTime() || 0;
+
+ player.one('loadedmetadata', loadedMetadataHandler);
+
+ player.src(sourceObj);
+ player.trigger({ type: 'usage', name: 'hls-error-reload' });
+ player.play();
+ };
+
+ /**
+ * Attempt to get a source from either the built-in getSource function
+ * or a custom function provided via the options
+ *
+ * @private
+ */
+ var errorHandler = function errorHandler() {
+ // Do not attempt to reload the source if a source-reload occurred before
+ // 'errorInterval' time has elapsed since the last source-reload
+ if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
+ player.trigger({ type: 'usage', name: 'hls-error-reload-canceled' });
+ return;
+ }
+
+ if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
+ videojs$1.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
+ return;
+ }
+ lastCalled = Date.now();
+
+ return localOptions.getSource.call(player, setSource);
+ };
+
+ /**
+ * Unbind any event handlers that were bound by the plugin
+ *
+ * @private
+ */
+ var cleanupEvents = function cleanupEvents() {
+ player.off('loadedmetadata', loadedMetadataHandler);
+ player.off('error', errorHandler);
+ player.off('dispose', cleanupEvents);
+ };
+
+ /**
+ * Cleanup before re-initializing the plugin
+ *
+ * @param {Object} [newOptions] an object with plugin options
+ * @private
+ */
+ var reinitPlugin = function reinitPlugin(newOptions) {
+ cleanupEvents();
+ initPlugin(player, newOptions);
+ };
+
+ player.on('error', errorHandler);
+ player.on('dispose', cleanupEvents);
+
+ // Overwrite the plugin function so that we can correctly cleanup before
+ // initializing the plugin
+ player.reloadSourceOnError = reinitPlugin;
+ };
+
+ /**
+ * Reload the source when an error is detected as long as there
+ * wasn't an error previously within the last 30 seconds
+ *
+ * @param {Object} [options] an object with plugin options
+ */
+ var reloadSourceOnError = function reloadSourceOnError(options) {
+ initPlugin(this, options);
+ };
+
+ var version$3 = "1.2.6";
+
+ // since VHS handles HLS and DASH (and in the future, more types), use * to capture all
+ videojs$1.use('*', function (player) {
+ return {
+ setSource: function setSource(srcObj, next) {
+ // pass null as the first argument to indicate that the source is not rejected
+ next(null, srcObj);
+ },
+
+ // VHS needs to know when seeks happen. For external seeks (generated at the player
+ // level), this middleware will capture the action. For internal seeks (generated at
+ // the tech level), we use a wrapped function so that we can handle it on our own
+ // (specified elsewhere).
+ setCurrentTime: function setCurrentTime(time) {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(time);
+ }
+
+ return time;
+ },
+
+ // Sync VHS after play requests.
+ // This specifically handles replay where the order of actions is
+ // play, video element will seek to 0 (skipping the setCurrentTime middleware)
+ // then triggers a play event.
+ play: function play() {
+ if (player.vhs && player.currentSource().src === player.vhs.source_.src) {
+ player.vhs.setCurrentTime(player.currentTime());
+ }
+ }
+ };
+ });
+
+ /**
+ * @file videojs-http-streaming.js
+ *
+ * The main file for the HLS project.
+ * License: https://github.com/videojs/videojs-http-streaming/blob/master/LICENSE
+ */
+
+ var Hls$1 = {
+ PlaylistLoader: PlaylistLoader,
+ Playlist: Playlist,
+ Decrypter: Decrypter,
+ AsyncStream: AsyncStream,
+ decrypt: decrypt,
+ utils: utils,
+
+ STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
+ INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
+ comparePlaylistBandwidth: comparePlaylistBandwidth,
+ comparePlaylistResolution: comparePlaylistResolution,
+
+ xhr: xhrFactory()
+ };
+
+ // 0.5 MB/s
+ var INITIAL_BANDWIDTH = 4194304;
+
+ // Define getter/setters for config properites
+ ['GOAL_BUFFER_LENGTH', 'MAX_GOAL_BUFFER_LENGTH', 'GOAL_BUFFER_LENGTH_RATE', 'BUFFER_LOW_WATER_LINE', 'MAX_BUFFER_LOW_WATER_LINE', 'BUFFER_LOW_WATER_LINE_RATE', 'BANDWIDTH_VARIANCE'].forEach(function (prop) {
+ Object.defineProperty(Hls$1, prop, {
+ get: function get$$1() {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+ return Config[prop];
+ },
+ set: function set$$1(value) {
+ videojs$1.log.warn('using Hls.' + prop + ' is UNSAFE be sure you know what you are doing');
+
+ if (typeof value !== 'number' || value < 0) {
+ videojs$1.log.warn('value of Hls.' + prop + ' must be greater than or equal to 0');
+ return;
+ }
+
+ Config[prop] = value;
+ }
+ });
+ });
+
+ var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
+ var mpegurlRE = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
+
+ if (mpegurlRE.test(type)) {
+ return 'hls';
+ }
+
+ var dashRE = /^application\/dash\+xml/i;
+
+ if (dashRE.test(type)) {
+ return 'dash';
+ }
+
+ return null;
+ };
+
+ /**
+ * Updates the selectedIndex of the QualityLevelList when a mediachange happens in hls.
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
+ * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
+ * @function handleHlsMediaChange
+ */
+ var handleHlsMediaChange = function handleHlsMediaChange(qualityLevels, playlistLoader) {
+ var newPlaylist = playlistLoader.media();
+ var selectedIndex = -1;
+
+ for (var i = 0; i < qualityLevels.length; i++) {
+ if (qualityLevels[i].id === newPlaylist.uri) {
+ selectedIndex = i;
+ break;
+ }
+ }
+
+ qualityLevels.selectedIndex_ = selectedIndex;
+ qualityLevels.trigger({
+ selectedIndex: selectedIndex,
+ type: 'change'
+ });
+ };
+
+ /**
+ * Adds quality levels to list once playlist metadata is available
+ *
+ * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
+ * @param {Object} hls Hls object to listen to for media events.
+ * @function handleHlsLoadedMetadata
+ */
+ var handleHlsLoadedMetadata = function handleHlsLoadedMetadata(qualityLevels, hls) {
+ hls.representations().forEach(function (rep) {
+ qualityLevels.addQualityLevel(rep);
+ });
+ handleHlsMediaChange(qualityLevels, hls.playlists);
+ };
+
+ // HLS is a source handler, not a tech. Make sure attempts to use it
+ // as one do not cause exceptions.
+ Hls$1.canPlaySource = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+ };
+
+ var emeKeySystems = function emeKeySystems(keySystemOptions, videoPlaylist, audioPlaylist) {
+ if (!keySystemOptions) {
+ return keySystemOptions;
+ }
+
+ // upsert the content types based on the selected playlist
+ var keySystemContentTypes = {};
+
+ for (var keySystem in keySystemOptions) {
+ keySystemContentTypes[keySystem] = {
+ audioContentType: 'audio/mp4; codecs="' + audioPlaylist.attributes.CODECS + '"',
+ videoContentType: 'video/mp4; codecs="' + videoPlaylist.attributes.CODECS + '"'
+ };
+
+ if (videoPlaylist.contentProtection && videoPlaylist.contentProtection[keySystem] && videoPlaylist.contentProtection[keySystem].pssh) {
+ keySystemContentTypes[keySystem].pssh = videoPlaylist.contentProtection[keySystem].pssh;
+ }
+
+ // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
+ // so we need to prevent overwriting the URL entirely
+ if (typeof keySystemOptions[keySystem] === 'string') {
+ keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
+ }
+ }
+
+ return videojs$1.mergeOptions(keySystemOptions, keySystemContentTypes);
+ };
+
+ var setupEmeOptions = function setupEmeOptions(hlsHandler) {
+ if (hlsHandler.options_.sourceType !== 'dash') {
+ return;
+ }
+ var player = videojs$1.players[hlsHandler.tech_.options_.playerId];
+
+ if (player.eme) {
+ var sourceOptions = emeKeySystems(hlsHandler.source_.keySystems, hlsHandler.playlists.media(), hlsHandler.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());
+
+ if (sourceOptions) {
+ player.currentSource().keySystems = sourceOptions;
+ }
+ }
+ };
+
+ /**
+ * Whether the browser has built-in HLS support.
+ */
+ Hls$1.supportsNativeHls = function () {
+ var video = document_1.createElement('video');
+
+ // native HLS is definitely not supported if HTML5 video isn't
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ // HLS manifests can go by many mime-types
+ var canPlay = [
+ // Apple santioned
+ 'application/vnd.apple.mpegurl',
+ // Apple sanctioned for backwards compatibility
+ 'audio/mpegurl',
+ // Very common
+ 'audio/x-mpegurl',
+ // Very common
+ 'application/x-mpegurl',
+ // Included for completeness
+ 'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
+
+ return canPlay.some(function (canItPlay) {
+ return (/maybe|probably/i.test(video.canPlayType(canItPlay))
+ );
+ });
+ }();
+
+ Hls$1.supportsNativeDash = function () {
+ if (!videojs$1.getTech('Html5').isSupported()) {
+ return false;
+ }
+
+ return (/maybe|probably/i.test(document_1.createElement('video').canPlayType('application/dash+xml'))
+ );
+ }();
+
+ Hls$1.supportsTypeNatively = function (type) {
+ if (type === 'hls') {
+ return Hls$1.supportsNativeHls;
+ }
+
+ if (type === 'dash') {
+ return Hls$1.supportsNativeDash;
+ }
+
+ return false;
+ };
+
+ /**
+ * HLS is a source handler, not a tech. Make sure attempts to use it
+ * as one do not cause exceptions.
+ */
+ Hls$1.isSupported = function () {
+ return videojs$1.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+ };
+
+ var Component$1 = videojs$1.getComponent('Component');
+
+ /**
+ * The Hls Handler object, where we orchestrate all of the parts
+ * of HLS to interact with video.js
+ *
+ * @class HlsHandler
+ * @extends videojs.Component
+ * @param {Object} source the soruce object
+ * @param {Tech} tech the parent tech object
+ * @param {Object} options optional and required options
+ */
+
+ var HlsHandler = function (_Component) {
+ inherits$3(HlsHandler, _Component);
+
+ function HlsHandler(source, tech, options) {
+ classCallCheck$3(this, HlsHandler);
+
+ // tech.player() is deprecated but setup a reference to HLS for
+ // backwards-compatibility
+ var _this = possibleConstructorReturn$3(this, (HlsHandler.__proto__ || Object.getPrototypeOf(HlsHandler)).call(this, tech, options.hls));
+
+ if (tech.options_ && tech.options_.playerId) {
+ var _player = videojs$1(tech.options_.playerId);
+
+ if (!_player.hasOwnProperty('hls')) {
+ Object.defineProperty(_player, 'hls', {
+ get: function get$$1() {
+ videojs$1.log.warn('player.hls is deprecated. Use player.tech().hls instead.');
+ tech.trigger({ type: 'usage', name: 'hls-player-access' });
+ return _this;
+ }
+ });
+ }
+
+ // Set up a reference to the HlsHandler from player.vhs. This allows users to start
+ // migrating from player.tech_.hls... to player.vhs... for API access. Although this
+ // isn't the most appropriate form of reference for video.js (since all APIs should
+ // be provided through core video.js), it is a common pattern for plugins, and vhs
+ // will act accordingly.
+ _player.vhs = _this;
+ // deprecated, for backwards compatibility
+ _player.dash = _this;
+ }
+
+ _this.tech_ = tech;
+ _this.source_ = source;
+ _this.stats = {};
+ _this.setOptions_();
+
+ if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
+ tech.overrideNativeAudioTracks(true);
+ tech.overrideNativeVideoTracks(true);
+ } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
+ // overriding native HLS only works if audio tracks have been emulated
+ // error early if we're misconfigured
+ throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');
+ }
+
+ // listen for fullscreenchange events for this player so that we
+ // can adjust our quality selection quickly
+ _this.on(document_1, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {
+ var fullscreenElement = document_1.fullscreenElement || document_1.webkitFullscreenElement || document_1.mozFullScreenElement || document_1.msFullscreenElement;
+
+ if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {
+ _this.masterPlaylistController_.smoothQualityChange_();
+ }
+ });
+ _this.on(_this.tech_, 'error', function () {
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.pauseLoading();
+ }
+ });
+
+ _this.on(_this.tech_, 'play', _this.play);
+ return _this;
+ }
+
+ createClass$2(HlsHandler, [{
+ key: 'setOptions_',
+ value: function setOptions_() {
+ var _this2 = this;
+
+ // defaults
+ this.options_.withCredentials = this.options_.withCredentials || false;
+
+ if (typeof this.options_.blacklistDuration !== 'number') {
+ this.options_.blacklistDuration = 5 * 60;
+ }
+
+ // start playlist selection at a reasonable bandwidth for
+ // broadband internet (0.5 MB/s) or mobile (0.0625 MB/s)
+ if (typeof this.options_.bandwidth !== 'number') {
+ this.options_.bandwidth = INITIAL_BANDWIDTH;
+ }
+
+ // If the bandwidth number is unchanged from the initial setting
+ // then this takes precedence over the enableLowInitialPlaylist option
+ this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === INITIAL_BANDWIDTH;
+
+ // grab options passed to player.src
+ ['withCredentials', 'bandwidth'].forEach(function (option) {
+ if (typeof _this2.source_[option] !== 'undefined') {
+ _this2.options_[option] = _this2.source_[option];
+ }
+ });
+
+ this.bandwidth = this.options_.bandwidth;
+ }
+ /**
+ * called when player.src gets called, handle a new source
+ *
+ * @param {Object} src the source object to handle
+ */
+
+ }, {
+ key: 'src',
+ value: function src(_src, type) {
+ var _this3 = this;
+
+ // do nothing if the src is falsey
+ if (!_src) {
+ return;
+ }
+ this.setOptions_();
+ // add master playlist controller options
+ this.options_.url = this.source_.src;
+ this.options_.tech = this.tech_;
+ this.options_.externHls = Hls$1;
+ this.options_.sourceType = simpleTypeFromSourceType(type);
+ // Whenever we seek internally, we should update both the tech and call our own
+ // setCurrentTime function. This is needed because "seeking" events aren't always
+ // reliable. External seeks (via the player object) are handled via middleware.
+ this.options_.seekTo = function (time) {
+ _this3.tech_.setCurrentTime(time);
+ _this3.setCurrentTime(time);
+ };
+
+ this.masterPlaylistController_ = new MasterPlaylistController(this.options_);
+ this.playbackWatcher_ = new PlaybackWatcher(videojs$1.mergeOptions(this.options_, {
+ seekable: function seekable$$1() {
+ return _this3.seekable();
+ }
+ }));
+
+ this.masterPlaylistController_.on('error', function () {
+ var player = videojs$1.players[_this3.tech_.options_.playerId];
+
+ player.error(_this3.masterPlaylistController_.error);
+ });
+
+ // `this` in selectPlaylist should be the HlsHandler for backwards
+ // compatibility with < v2
+ this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : Hls$1.STANDARD_PLAYLIST_SELECTOR.bind(this);
+
+ this.masterPlaylistController_.selectInitialPlaylist = Hls$1.INITIAL_PLAYLIST_SELECTOR.bind(this);
+
+ // re-expose some internal objects for backwards compatibility with < v2
+ this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;
+ this.mediaSource = this.masterPlaylistController_.mediaSource;
+
+ // Proxy assignment of some properties to the master playlist
+ // controller. Using a custom property for backwards compatibility
+ // with < v2
+ Object.defineProperties(this, {
+ selectPlaylist: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.selectPlaylist;
+ },
+ set: function set$$1(selectPlaylist) {
+ this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);
+ }
+ },
+ throughput: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;
+ },
+ set: function set$$1(throughput) {
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput;
+ // By setting `count` to 1 the throughput value becomes the starting value
+ // for the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;
+ }
+ },
+ bandwidth: {
+ get: function get$$1() {
+ return this.masterPlaylistController_.mainSegmentLoader_.bandwidth;
+ },
+ set: function set$$1(bandwidth) {
+ this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth;
+ // setting the bandwidth manually resets the throughput counter
+ // `count` is set to zero that current value of `rate` isn't included
+ // in the cumulative average
+ this.masterPlaylistController_.mainSegmentLoader_.throughput = {
+ rate: 0,
+ count: 0
+ };
+ }
+ },
+ /**
+ * `systemBandwidth` is a combination of two serial processes bit-rates. The first
+ * is the network bitrate provided by `bandwidth` and the second is the bitrate of
+ * the entire process after that - decryption, transmuxing, and appending - provided
+ * by `throughput`.
+ *
+ * Since the two process are serial, the overall system bandwidth is given by:
+ * sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+ */
+ systemBandwidth: {
+ get: function get$$1() {
+ var invBandwidth = 1 / (this.bandwidth || 1);
+ var invThroughput = void 0;
+
+ if (this.throughput > 0) {
+ invThroughput = 1 / this.throughput;
+ } else {
+ invThroughput = 0;
+ }
+
+ var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
+
+ return systemBitrate;
+ },
+ set: function set$$1() {
+ videojs$1.log.error('The "systemBandwidth" property is read-only');
+ }
+ }
+ });
+
+ Object.defineProperties(this.stats, {
+ bandwidth: {
+ get: function get$$1() {
+ return _this3.bandwidth || 0;
+ },
+ enumerable: true
+ },
+ mediaRequests: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequests_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsAborted: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsTimedout: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;
+ },
+ enumerable: true
+ },
+ mediaRequestsErrored: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;
+ },
+ enumerable: true
+ },
+ mediaTransferDuration: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;
+ },
+ enumerable: true
+ },
+ mediaBytesTransferred: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;
+ },
+ enumerable: true
+ },
+ mediaSecondsLoaded: {
+ get: function get$$1() {
+ return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;
+ },
+ enumerable: true
+ },
+ buffered: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.buffered());
+ },
+ enumerable: true
+ },
+ currentTime: {
+ get: function get$$1() {
+ return _this3.tech_.currentTime();
+ },
+ enumerable: true
+ },
+ currentSource: {
+ get: function get$$1() {
+ return _this3.tech_.currentSource_;
+ },
+ enumerable: true
+ },
+ currentTech: {
+ get: function get$$1() {
+ return _this3.tech_.name_;
+ },
+ enumerable: true
+ },
+ duration: {
+ get: function get$$1() {
+ return _this3.tech_.duration();
+ },
+ enumerable: true
+ },
+ master: {
+ get: function get$$1() {
+ return _this3.playlists.master;
+ },
+ enumerable: true
+ },
+ playerDimensions: {
+ get: function get$$1() {
+ return _this3.tech_.currentDimensions();
+ },
+ enumerable: true
+ },
+ seekable: {
+ get: function get$$1() {
+ return timeRangesToArray(_this3.tech_.seekable());
+ },
+ enumerable: true
+ },
+ timestamp: {
+ get: function get$$1() {
+ return Date.now();
+ },
+ enumerable: true
+ },
+ videoPlaybackQuality: {
+ get: function get$$1() {
+ return _this3.tech_.getVideoPlaybackQuality();
+ },
+ enumerable: true
+ }
+ });
+
+ this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ // Add the manual rendition mix-in to HlsHandler
+ renditionSelectionMixin(_this3);
+ setupEmeOptions(_this3);
+ });
+
+ // the bandwidth of the primary segment loader is our best
+ // estimate of overall bandwidth
+ this.on(this.masterPlaylistController_, 'progress', function () {
+ this.tech_.trigger('progress');
+ });
+
+ this.tech_.ready(function () {
+ return _this3.setupQualityLevels_();
+ });
+
+ // do nothing if the tech has been disposed already
+ // this can occur if someone sets the src in player.ready(), for instance
+ if (!this.tech_.el()) {
+ return;
+ }
+
+ this.tech_.src(videojs$1.URL.createObjectURL(this.masterPlaylistController_.mediaSource));
+ }
+
+ /**
+ * Initializes the quality levels and sets listeners to update them.
+ *
+ * @method setupQualityLevels_
+ * @private
+ */
+
+ }, {
+ key: 'setupQualityLevels_',
+ value: function setupQualityLevels_() {
+ var _this4 = this;
+
+ var player = videojs$1.players[this.tech_.options_.playerId];
+
+ if (player && player.qualityLevels) {
+ this.qualityLevels_ = player.qualityLevels();
+
+ this.masterPlaylistController_.on('selectedinitialmedia', function () {
+ handleHlsLoadedMetadata(_this4.qualityLevels_, _this4);
+ });
+
+ this.playlists.on('mediachange', function () {
+ handleHlsMediaChange(_this4.qualityLevels_, _this4.playlists);
+ });
+ }
+ }
+
+ /**
+ * Begin playing the video.
+ */
+
+ }, {
+ key: 'play',
+ value: function play() {
+ this.masterPlaylistController_.play();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'setCurrentTime',
+ value: function setCurrentTime(currentTime) {
+ this.masterPlaylistController_.setCurrentTime(currentTime);
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'duration',
+ value: function duration$$1() {
+ return this.masterPlaylistController_.duration();
+ }
+
+ /**
+ * a wrapper around the function in MasterPlaylistController
+ */
+
+ }, {
+ key: 'seekable',
+ value: function seekable$$1() {
+ return this.masterPlaylistController_.seekable();
+ }
+
+ /**
+ * Abort all outstanding work and cleanup.
+ */
+
+ }, {
+ key: 'dispose',
+ value: function dispose() {
+ if (this.playbackWatcher_) {
+ this.playbackWatcher_.dispose();
+ }
+ if (this.masterPlaylistController_) {
+ this.masterPlaylistController_.dispose();
+ }
+ if (this.qualityLevels_) {
+ this.qualityLevels_.dispose();
+ }
+ get$2(HlsHandler.prototype.__proto__ || Object.getPrototypeOf(HlsHandler.prototype), 'dispose', this).call(this);
+ }
+ }]);
+ return HlsHandler;
+ }(Component$1);
+
+ /**
+ * The Source Handler object, which informs video.js what additional
+ * MIME types are supported and sets up playback. It is registered
+ * automatically to the appropriate tech based on the capabilities of
+ * the browser it is running in. It is not necessary to use or modify
+ * this object in normal usage.
+ */
+
+ var HlsSourceHandler = {
+ name: 'videojs-http-streaming',
+ VERSION: version$3,
+ canHandleSource: function canHandleSource(srcObj) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ return HlsSourceHandler.canPlayType(srcObj.type, localOptions);
+ },
+ handleSource: function handleSource(source, tech) {
+ var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+ var localOptions = videojs$1.mergeOptions(videojs$1.options, options);
+
+ tech.hls = new HlsHandler(source, tech, localOptions);
+ tech.hls.xhr = xhrFactory();
+
+ tech.hls.src(source.src, source.type);
+ return tech.hls;
+ },
+ canPlayType: function canPlayType(type) {
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ var _videojs$mergeOptions = videojs$1.mergeOptions(videojs$1.options, options),
+ overrideNative = _videojs$mergeOptions.hls.overrideNative;
+
+ var supportedType = simpleTypeFromSourceType(type);
+ var canUseMsePlayback = supportedType && (!Hls$1.supportsTypeNatively(supportedType) || overrideNative);
+
+ return canUseMsePlayback ? 'maybe' : '';
+ }
+ };
+
+ if (typeof videojs$1.MediaSource === 'undefined' || typeof videojs$1.URL === 'undefined') {
+ videojs$1.MediaSource = MediaSource;
+ videojs$1.URL = URL$1;
+ }
+
+ // register source handlers with the appropriate techs
+ if (MediaSource.supportsNativeMediaSources()) {
+ videojs$1.getTech('Html5').registerSourceHandler(HlsSourceHandler, 0);
+ }
+
+ videojs$1.HlsHandler = HlsHandler;
+ videojs$1.HlsSourceHandler = HlsSourceHandler;
+ videojs$1.Hls = Hls$1;
+ if (!videojs$1.use) {
+ videojs$1.registerComponent('Hls', Hls$1);
+ }
+ videojs$1.options.hls = videojs$1.options.hls || {};
+
+ if (videojs$1.registerPlugin) {
+ videojs$1.registerPlugin('reloadSourceOnError', reloadSourceOnError);
+ } else {
+ videojs$1.plugin('reloadSourceOnError', reloadSourceOnError);
+ }
+
+ return videojs$1;
+
+})));
diff --git a/assets/netcut/lib/videojs/video.min.js b/assets/netcut/lib/videojs/video.min.js
new file mode 100644
index 0000000..ddb25b3
--- /dev/null
+++ b/assets/netcut/lib/videojs/video.min.js
@@ -0,0 +1,12 @@
+/**
+ * @license
+ * Video.js 7.2.4 <http://videojs.com/>
+ * Copyright Brightcove, Inc. <https://www.brightcove.com/>
+ * Available under Apache License Version 2.0
+ * <https://github.com/videojs/video.js/blob/master/LICENSE>
+ *
+ * Includes vtt.js <https://github.com/mozilla/vtt.js>
+ * Available under Apache License Version 2.0
+ * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>
+ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.videojs=e()}(this,function(){var d="7.2.4",t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};function e(t,e){return t(e={exports:{}},e.exports),e.exports}var i,g="undefined"!=typeof window?window:"undefined"!=typeof t?t:"undefined"!=typeof self?self:{},n={},r=Object.freeze({default:n}),a=r&&n||r,s="undefined"!=typeof t?t:"undefined"!=typeof window?window:{};"undefined"!=typeof document?i=document:(i=s["__GLOBAL_DOCUMENT_CACHE@4"])||(i=s["__GLOBAL_DOCUMENT_CACHE@4"]=a);var p=i,o=void 0,u="info",l=[],c=function(t,e){var i=o.levels[u],n=new RegExp("^("+i+")$");if("log"!==t&&e.unshift(t.toUpperCase()+":"),l&&l.push([].concat(e)),e.unshift("VIDEOJS:"),g.console){var r=g.console[t];r||"debug"!==t||(r=g.console.info||g.console.log),r&&i&&n.test(t)&&r[Array.isArray(e)?"apply":"call"](g.console,e)}};(o=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];c("log",e)}).levels={all:"debug|log|warn|error",off:"",debug:"debug|log|warn|error",info:"log|warn|error",warn:"warn|error",error:"error",DEFAULT:u},o.level=function(t){if("string"==typeof t){if(!o.levels.hasOwnProperty(t))throw new Error('"'+t+'" in not a valid log level');u=t}return u},o.history=function(){return l?[].concat(l):[]},o.history.clear=function(){l&&(l.length=0)},o.history.disable=function(){null!==l&&(l.length=0,l=null)},o.history.enable=function(){null===l&&(l=[])},o.error=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];return c("error",e)},o.warn=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];return c("warn",e)},o.debug=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];return c("debug",e)};var f=o;var m=function(t){for(var e="",i=0;i<arguments.length;i++)e+=t[i].replace(/\n\r?\s*/g,"")+(arguments[i+1]||"");return e},Ee="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},y=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},v=function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)},_=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e},h=function(t,e){return t.raw=e,t},b=Object.prototype.toString,T=function(t){return C(t)?Object.keys(t):[]};function S(e,i){T(e).forEach(function(t){return i(e[t],t)})}function k(i){for(var t=arguments.length,e=Array(1<t?t-1:0),n=1;n<t;n++)e[n-1]=arguments[n];return Object.assign?Object.assign.apply(Object,[i].concat(e)):(e.forEach(function(t){t&&S(t,function(t,e){i[e]=t})}),i)}function C(t){return!!t&&"object"===("undefined"==typeof t?"undefined":Ee(t))}function w(t){return C(t)&&"[object Object]"===b.call(t)&&t.constructor===Object}function E(t,e){if(!t||!e)return"";if("function"==typeof g.getComputedStyle){var i=g.getComputedStyle(t);return i?i[e]:""}return""}var A=h(["Setting attributes in the second argument of createEl()\n has been deprecated. 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e=100,i=3,n=0,r=100,a=0,s=100,o="";Object.defineProperties(this,{width:{enumerable:!0,get:function(){return e},set:function(t){if(!mn(t))throw new Error("Width must be between 0 and 100.");e=t}},lines:{enumerable:!0,get:function(){return i},set:function(t){if("number"!=typeof t)throw new TypeError("Lines must be set to a number.");i=t}},regionAnchorY:{enumerable:!0,get:function(){return r},set:function(t){if(!mn(t))throw new Error("RegionAnchorX must be between 0 and 100.");r=t}},regionAnchorX:{enumerable:!0,get:function(){return n},set:function(t){if(!mn(t))throw new Error("RegionAnchorY must be between 0 and 100.");n=t}},viewportAnchorY:{enumerable:!0,get:function(){return s},set:function(t){if(!mn(t))throw new Error("ViewportAnchorY must be between 0 and 100.");s=t}},viewportAnchorX:{enumerable:!0,get:function(){return a},set:function(t){if(!mn(t))throw new Error("ViewportAnchorX must be between 0 and 100.");a=t}},scroll:{enumerable:!0,get:function(){return o},set:function(t){var e,i="string"==typeof(e=t)&&!!fn[e.toLowerCase()]&&e.toLowerCase();if(!1===i)throw new SyntaxError("An invalid or illegal string was specified.");o=i}}})},yn=Object.freeze({default:gn,__moduleExports:gn}),vn=sn&&an||sn,_n=pn&&dn||pn,bn=yn&&gn||yn,Tn=e(function(t){var e=t.exports={WebVTT:vn,VTTCue:_n,VTTRegion:bn};g.vttjs=e,g.WebVTT=e.WebVTT;var i=e.VTTCue,n=e.VTTRegion,r=g.VTTCue,a=g.VTTRegion;e.shim=function(){g.VTTCue=i,g.VTTRegion=n},e.restore=function(){g.VTTCue=r,g.VTTRegion=a},g.VTTCue||e.shim()});Tn.WebVTT,Tn.VTTCue,Tn.VTTRegion;var Sn=function(e){function r(){var i=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:function(){};y(this,r),i.reportTouchActivity=!1;var n=_(this,e.call(this,null,i,t));return n.hasStarted_=!1,n.on("playing",function(){this.hasStarted_=!0}),n.on("loadstart",function(){this.hasStarted_=!1}),ji.names.forEach(function(t){var e=ji[t];i&&i[e.getterName]&&(n[e.privateName]=i[e.getterName])}),n.featuresProgressEvents||n.manualProgressOn(),n.featuresTimeupdateEvents||n.manualTimeUpdatesOn(),["Text","Audio","Video"].forEach(function(t){!1===i["native"+t+"Tracks"]&&(n["featuresNative"+t+"Tracks"]=!1)}),!1===i.nativeCaptions||!1===i.nativeTextTracks?n.featuresNativeTextTracks=!1:!0!==i.nativeCaptions&&!0!==i.nativeTextTracks||(n.featuresNativeTextTracks=!0),n.featuresNativeTextTracks||n.emulateTextTracks(),n.autoRemoteTextTracks_=new ji.text.ListClass,n.initTrackListeners(),i.nativeControlsForTouch||n.emitTapEvents(),n.constructor&&(n.name_=n.constructor.name||"Unknown Tech"),n}return v(r,e),r.prototype.triggerSourceset=function(t){var e=this;this.isReady_||this.one("ready",function(){return e.setTimeout(function(){return e.triggerSourceset(t)},1)}),this.trigger({src:t,type:"sourceset"})},r.prototype.manualProgressOn=function(){this.on("durationchange",this.onDurationChange),this.manualProgress=!0,this.one("ready",this.trackProgress)},r.prototype.manualProgressOff=function(){this.manualProgress=!1,this.stopTrackingProgress(),this.off("durationchange",this.onDurationChange)},r.prototype.trackProgress=function(t){this.stopTrackingProgress(),this.progressInterval=this.setInterval(Ot(this,function(){var t=this.bufferedPercent();this.bufferedPercent_!==t&&this.trigger("progress"),1===(this.bufferedPercent_=t)&&this.stopTrackingProgress()}),500)},r.prototype.onDurationChange=function(t){this.duration_=this.duration()},r.prototype.buffered=function(){return be(0,0)},r.prototype.bufferedPercent=function(){return Te(this.buffered(),this.duration_)},r.prototype.stopTrackingProgress=function(){this.clearInterval(this.progressInterval)},r.prototype.manualTimeUpdatesOn=function(){this.manualTimeUpdates=!0,this.on("play",this.trackCurrentTime),this.on("pause",this.stopTrackingCurrentTime)},r.prototype.manualTimeUpdatesOff=function(){this.manualTimeUpdates=!1,this.stopTrackingCurrentTime(),this.off("play",this.trackCurrentTime),this.off("pause",this.stopTrackingCurrentTime)},r.prototype.trackCurrentTime=function(){this.currentTimeInterval&&this.stopTrackingCurrentTime(),this.currentTimeInterval=this.setInterval(function(){this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},250)},r.prototype.stopTrackingCurrentTime=function(){this.clearInterval(this.currentTimeInterval),this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},r.prototype.dispose=function(){this.clearTracks(Bi.names),this.manualProgress&&this.manualProgressOff(),this.manualTimeUpdates&&this.manualTimeUpdatesOff(),e.prototype.dispose.call(this)},r.prototype.clearTracks=function(t){var r=this;(t=[].concat(t)).forEach(function(t){for(var e=r[t+"Tracks"]()||[],i=e.length;i--;){var n=e[i];"text"===t&&r.removeRemoteTextTrack(n),e.removeTrack(n)}})},r.prototype.cleanupAutoTextTracks=function(){for(var t=this.autoRemoteTextTracks_||[],e=t.length;e--;){var i=t[e];this.removeRemoteTextTrack(i)}},r.prototype.reset=function(){},r.prototype.error=function(t){return void 0!==t&&(this.error_=new Oe(t),this.trigger("error")),this.error_},r.prototype.played=function(){return this.hasStarted_?be(0,0):be()},r.prototype.setCurrentTime=function(){this.manualTimeUpdates&&this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},r.prototype.initTrackListeners=function(){var r=this;Bi.names.forEach(function(t){var e=Bi[t],i=function(){r.trigger(t+"trackchange")},n=r[e.getterName]();n.addEventListener("removetrack",i),n.addEventListener("addtrack",i),r.on("dispose",function(){n.removeEventListener("removetrack",i),n.removeEventListener("addtrack",i)})})},r.prototype.addWebVttScript_=function(){var t=this;if(!g.WebVTT)if(p.body.contains(this.el())){if(!this.options_["vtt.js"]&&w(Tn)&&0<Object.keys(Tn).length)return void this.trigger("vttjsloaded");var e=p.createElement("script");e.src=this.options_["vtt.js"]||"https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js",e.onload=function(){t.trigger("vttjsloaded")},e.onerror=function(){t.trigger("vttjserror")},this.on("dispose",function(){e.onload=null,e.onerror=null}),g.WebVTT=!0,this.el().parentNode.appendChild(e)}else this.ready(this.addWebVttScript_)},r.prototype.emulateTextTracks=function(){var t=this,i=this.textTracks(),e=this.remoteTextTracks(),n=function(t){return i.addTrack(t.track)},r=function(t){return i.removeTrack(t.track)};e.on("addtrack",n),e.on("removetrack",r),this.addWebVttScript_();var a=function(){return t.trigger("texttrackchange")},s=function(){a();for(var t=0;t<i.length;t++){var e=i[t];e.removeEventListener("cuechange",a),"showing"===e.mode&&e.addEventListener("cuechange",a)}};s(),i.addEventListener("change",s),i.addEventListener("addtrack",s),i.addEventListener("removetrack",s),this.on("dispose",function(){e.off("addtrack",n),e.off("removetrack",r),i.removeEventListener("change",s),i.removeEventListener("addtrack",s),i.removeEventListener("removetrack",s);for(var t=0;t<i.length;t++){i[t].removeEventListener("cuechange",a)}})},r.prototype.addTextTrack=function(t,e,i){if(!t)throw new Error("TextTrack kind is required but was not provided");return function(t,e,i,n){var r=4<arguments.length&&void 0!==arguments[4]?arguments[4]:{},a=t.textTracks();r.kind=e,i&&(r.label=i),n&&(r.language=n),r.tech=t;var s=new ji.text.TrackClass(r);return a.addTrack(s),s}(this,t,e,i)},r.prototype.createRemoteTextTrack=function(t){var e=Gt(t,{tech:this});return new Ni.remoteTextEl.TrackClass(e)},r.prototype.addRemoteTextTrack=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},i=arguments[1],n=this.createRemoteTextTrack(e);return!0!==i&&!1!==i&&(f.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js'),i=!0),this.remoteTextTrackEls().addTrackElement_(n),this.remoteTextTracks().addTrack(n.track),!0!==i&&this.ready(function(){return t.autoRemoteTextTracks_.addTrack(n.track)}),n},r.prototype.removeRemoteTextTrack=function(t){var e=this.remoteTextTrackEls().getTrackElementByTrack_(t);this.remoteTextTrackEls().removeTrackElement_(e),this.remoteTextTracks().removeTrack(t),this.autoRemoteTextTracks_.removeTrack(t)},r.prototype.getVideoPlaybackQuality=function(){return{}},r.prototype.setPoster=function(){},r.prototype.playsinline=function(){},r.prototype.setPlaysinline=function(){},r.prototype.overrideNativeAudioTracks=function(){},r.prototype.overrideNativeVideoTracks=function(){},r.prototype.canPlayType=function(){return""},r.canPlayType=function(){return""},r.canPlaySource=function(t,e){return r.canPlayType(t.type)},r.isTech=function(t){return t.prototype instanceof r||t instanceof r||t===r},r.registerTech=function(t,e){if(r.techs_||(r.techs_={}),!r.isTech(e))throw new Error("Tech "+t+" must be a Tech");if(!r.canPlayType)throw new Error("Techs must have a static canPlayType method on them");if(!r.canPlaySource)throw new Error("Techs must have a static canPlaySource method on them");return t=Wt(t),r.techs_[t]=e,"Tech"!==t&&r.defaultTechOrder_.push(t),e},r.getTech=function(t){if(t)return t=Wt(t),r.techs_&&r.techs_[t]?r.techs_[t]:g&&g.videojs&&g.videojs[t]?(f.warn("The "+t+" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)"),g.videojs[t]):void 0},r}(Xt);ji.names.forEach(function(t){var e=ji[t];Sn.prototype[e.getterName]=function(){return this[e.privateName]=this[e.privateName]||new e.ListClass,this[e.privateName]}}),Sn.prototype.featuresVolumeControl=!0,Sn.prototype.featuresMuteControl=!0,Sn.prototype.featuresFullscreenResize=!1,Sn.prototype.featuresPlaybackRate=!1,Sn.prototype.featuresProgressEvents=!1,Sn.prototype.featuresSourceset=!1,Sn.prototype.featuresTimeupdateEvents=!1,Sn.prototype.featuresNativeTextTracks=!1,Sn.withSourceHandlers=function(r){r.registerSourceHandler=function(t,e){var i=r.sourceHandlers;i||(i=r.sourceHandlers=[]),void 0===e&&(e=i.length),i.splice(e,0,t)},r.canPlayType=function(t){for(var e=r.sourceHandlers||[],i=void 0,n=0;n<e.length;n++)if(i=e[n].canPlayType(t))return i;return""},r.selectSourceHandler=function(t,e){for(var i=r.sourceHandlers||[],n=0;n<i.length;n++)if(i[n].canHandleSource(t,e))return i[n];return null},r.canPlaySource=function(t,e){var i=r.selectSourceHandler(t,e);return i?i.canHandleSource(t,e):""};["seekable","seeking","duration"].forEach(function(t){var e=this[t];"function"==typeof e&&(this[t]=function(){return this.sourceHandler_&&this.sourceHandler_[t]?this.sourceHandler_[t].apply(this.sourceHandler_,arguments):e.apply(this,arguments)})},r.prototype),r.prototype.setSource=function(t){var e=r.selectSourceHandler(t,this.options_);e||(r.nativeSourceHandler?e=r.nativeSourceHandler:f.error("No source handler found for the current source.")),this.disposeSourceHandler(),this.off("dispose",this.disposeSourceHandler),e!==r.nativeSourceHandler&&(this.currentSource_=t),this.sourceHandler_=e.handleSource(t,this,this.options_),this.on("dispose",this.disposeSourceHandler)},r.prototype.disposeSourceHandler=function(){this.currentSource_&&(this.clearTracks(["audio","video"]),this.currentSource_=null),this.cleanupAutoTextTracks(),this.sourceHandler_&&(this.sourceHandler_.dispose&&this.sourceHandler_.dispose(),this.sourceHandler_=null)}},Xt.registerComponent("Tech",Sn),Sn.registerTech("Tech",Sn),Sn.defaultTechOrder_=[];var kn={},Cn={},wn={};function En(t,e,i){t.setTimeout(function(){return function i(){var n=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:[];var r=arguments[2];var a=arguments[3];var s=4<arguments.length&&void 0!==arguments[4]?arguments[4]:[];var o=5<arguments.length&&void 0!==arguments[5]&&arguments[5];var e=t[0],u=t.slice(1);if("string"==typeof e)i(n,kn[e],r,a,s,o);else if(e){var l=function(t,e){var i=Cn[t.id()],n=null;if(null==i)return n=e(t),Cn[t.id()]=[[e,n]],n;for(var r=0;r<i.length;r++){var a=i[r],s=a[0],o=a[1];s===e&&(n=o)}null===n&&(n=e(t),i.push([e,n]));return n}(a,e);if(!l.setSource)return s.push(l),i(n,u,r,a,s,o);l.setSource(k({},n),function(t,e){if(t)return i(n,u,r,a,s,o);s.push(l),i(e,n.type===e.type?u:kn[e.type],r,a,s,o)})}else u.length?i(n,u,r,a,s,o):o?r(n,s):i(n,kn["*"],r,a,s,!0)}(e,kn[e.type],i,t)},1)}function An(t,e,i){var n=3<arguments.length&&void 0!==arguments[3]?arguments[3]:null,r="call"+Wt(i),a=t.reduce(Un(r),n),s=a===wn,o=s?null:e[i](a);return function(t,e,i,n){for(var r=t.length-1;0<=r;r--){var a=t[r];a[e]&&a[e](n,i)}}(t,i,o,s),o}var Ln={buffered:1,currentTime:1,duration:1,seekable:1,played:1,paused:1},On={setCurrentTime:1},Pn={play:1,pause:1};function Un(i){return function(t,e){return t===wn?wn:e[i]?e[i](t):t}}var xn={opus:"video/ogg",ogv:"video/ogg",mp4:"video/mp4",mov:"video/mp4",m4v:"video/mp4",mkv:"video/x-matroska",mp3:"audio/mpeg",aac:"audio/aac",oga:"audio/ogg",m3u8:"application/x-mpegURL",ts:"video/mp2t"},In=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=ei(t);return xn[e.toLowerCase()]||""};function Dn(t){var e=In(t.src);return!t.type&&e&&(t.type=e),t}var Rn=function(l){function c(t,e,i){y(this,c);var n=Gt({createEl:!1},e),r=_(this,l.call(this,t,n,i));if(e.playerOptions.sources&&0!==e.playerOptions.sources.length)t.src(e.playerOptions.sources);else for(var a=0,s=e.playerOptions.techOrder;a<s.length;a++){var o=Wt(s[a]),u=Sn.getTech(o);if(o||(u=Xt.getComponent(o)),u&&u.isSupported()){t.loadTech_(o);break}}return r}return v(c,l),c}(Xt);Xt.registerComponent("MediaLoader",Rn);var Mn=function(r){function n(t,e){y(this,n);var i=_(this,r.call(this,t,e));return i.emitTapEvents(),i.enable(),i}return v(n,r),n.prototype.createEl=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"div",e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=k({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass(),tabIndex:0},e),"button"===t&&f.error("Creating a ClickableComponent with an HTML element of "+t+" is not supported; use a Button instead."),i=k({role:"button"},i),this.tabIndex_=e.tabIndex;var n=r.prototype.createEl.call(this,t,e,i);return this.createControlTextEl(n),n},n.prototype.dispose=function(){this.controlTextEl_=null,r.prototype.dispose.call(this)},n.prototype.createControlTextEl=function(t){return this.controlTextEl_=D("span",{className:"vjs-control-text"},{"aria-live":"polite"}),t&&t.appendChild(this.controlTextEl_),this.controlText(this.controlText_,t),this.controlTextEl_},n.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.el();if(void 0===t)return this.controlText_||"Need Text";var i=this.localize(t);this.controlText_=t,R(this.controlTextEl_,i),this.nonIconControl||e.setAttribute("title",i)},n.prototype.buildCSSClass=function(){return"vjs-control vjs-button "+r.prototype.buildCSSClass.call(this)},n.prototype.enable=function(){this.enabled_||(this.enabled_=!0,this.removeClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","false"),"undefined"!=typeof this.tabIndex_&&this.el_.setAttribute("tabIndex",this.tabIndex_),this.on(["tap","click"],this.handleClick),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur))},n.prototype.disable=function(){this.enabled_=!1,this.addClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","true"),"undefined"!=typeof this.tabIndex_&&this.el_.removeAttribute("tabIndex"),this.off(["tap","click"],this.handleClick),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur)},n.prototype.handleClick=function(t){},n.prototype.handleFocus=function(t){vt(p,"keydown",Ot(this,this.handleKeyPress))},n.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.trigger("click")):r.prototype.handleKeyPress&&r.prototype.handleKeyPress.call(this,t)},n.prototype.handleBlur=function(t){_t(p,"keydown",Ot(this,this.handleKeyPress))},n}(Xt);Xt.registerComponent("ClickableComponent",Mn);var Bn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.update(),t.on("posterchange",Ot(i,i.update)),i}return v(r,n),r.prototype.dispose=function(){this.player().off("posterchange",this.update),n.prototype.dispose.call(this)},r.prototype.createEl=function(){return D("div",{className:"vjs-poster",tabIndex:-1})},r.prototype.update=function(t){var e=this.player().poster();this.setSrc(e),e?this.show():this.hide()},r.prototype.setSrc=function(t){var e="";t&&(e='url("'+t+'")'),this.el_.style.backgroundImage=e},r.prototype.handleClick=function(t){this.player_.controls()&&(this.player_.paused()?Ie(this.player_.play()):this.player_.pause())},r}(Mn);Xt.registerComponent("PosterImage",Bn);var Nn="#222",jn={monospace:"monospace",sansSerif:"sans-serif",serif:"serif",monospaceSansSerif:'"Andale Mono", "Lucida Console", monospace',monospaceSerif:'"Courier New", monospace',proportionalSansSerif:"sans-serif",proportionalSerif:"serif",casual:'"Comic Sans MS", Impact, fantasy',script:'"Monotype Corsiva", cursive',smallcaps:'"Andale Mono", "Lucida Console", monospace, sans-serif'};function Fn(t,e){var i=void 0;if(4===t.length)i=t[1]+t[1]+t[2]+t[2]+t[3]+t[3];else{if(7!==t.length)throw new Error("Invalid color code provided, "+t+"; must be formatted as e.g. #f0e or #f604e2.");i=t.slice(1)}return"rgba("+parseInt(i.slice(0,2),16)+","+parseInt(i.slice(2,4),16)+","+parseInt(i.slice(4,6),16)+","+e+")"}function Vn(t,e,i){try{t.style[e]=i}catch(t){return}}var Hn=function(a){function s(i,t,e){y(this,s);var n=_(this,a.call(this,i,t,e)),r=Ot(n,n.updateDisplay);return i.on("loadstart",Ot(n,n.toggleDisplay)),i.on("texttrackchange",r),i.on("loadstart",Ot(n,n.preselectTrack)),i.ready(Ot(n,function(){if(i.tech_&&i.tech_.featuresNativeTextTracks)this.hide();else{i.on("fullscreenchange",r),i.on("playerresize",r),g.addEventListener("orientationchange",r),i.on("dispose",function(){return g.removeEventListener("orientationchange",r)});for(var t=this.options_.playerOptions.tracks||[],e=0;e<t.length;e++)this.player_.addRemoteTextTrack(t[e],!0);this.preselectTrack()}})),n}return v(s,a),s.prototype.preselectTrack=function(){for(var t={captions:1,subtitles:1},e=this.player_.textTracks(),i=this.player_.cache_.selectedLanguage,n=void 0,r=void 0,a=void 0,s=0;s<e.length;s++){var o=e[s];i&&i.enabled&&i.language===o.language?o.kind===i.kind?a=o:a||(a=o):i&&!i.enabled?r=n=a=null:o.default&&("descriptions"!==o.kind||n?o.kind in t&&!r&&(r=o):n=o)}a?a.mode="showing":r?r.mode="showing":n&&(n.mode="showing")},s.prototype.toggleDisplay=function(){this.player_.tech_&&this.player_.tech_.featuresNativeTextTracks?this.hide():this.show()},s.prototype.createEl=function(){return a.prototype.createEl.call(this,"div",{className:"vjs-text-track-display"},{"aria-live":"off","aria-atomic":"true"})},s.prototype.clearDisplay=function(){"function"==typeof g.WebVTT&&g.WebVTT.processCues(g,[],this.el_)},s.prototype.updateDisplay=function(){var t=this.player_.textTracks();this.clearDisplay();for(var e=null,i=null,n=t.length;n--;){var r=t[n];"showing"===r.mode&&("descriptions"===r.kind?e=r:i=r)}i?("off"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","off"),this.updateForTrack(i)):e&&("assertive"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","assertive"),this.updateForTrack(e))},s.prototype.updateForTrack=function(t){if("function"==typeof g.WebVTT&&t.activeCues){for(var e=[],i=0;i<t.activeCues.length;i++)e.push(t.activeCues[i]);if(g.WebVTT.processCues(g,e,this.el_),this.player_.textTrackSettings)for(var n=this.player_.textTrackSettings.getValues(),r=e.length;r--;){var a=e[r];if(a){var s=a.displayState;if(n.color&&(s.firstChild.style.color=n.color),n.textOpacity&&Vn(s.firstChild,"color",Fn(n.color||"#fff",n.textOpacity)),n.backgroundColor&&(s.firstChild.style.backgroundColor=n.backgroundColor),n.backgroundOpacity&&Vn(s.firstChild,"backgroundColor",Fn(n.backgroundColor||"#000",n.backgroundOpacity)),n.windowColor&&(n.windowOpacity?Vn(s,"backgroundColor",Fn(n.windowColor,n.windowOpacity)):s.style.backgroundColor=n.windowColor),n.edgeStyle&&("dropshadow"===n.edgeStyle?s.firstChild.style.textShadow="2px 2px 3px #222, 2px 2px 4px #222, 2px 2px 5px "+Nn:"raised"===n.edgeStyle?s.firstChild.style.textShadow="1px 1px #222, 2px 2px #222, 3px 3px "+Nn:"depressed"===n.edgeStyle?s.firstChild.style.textShadow="1px 1px #ccc, 0 1px #ccc, -1px -1px #222, 0 -1px "+Nn:"uniform"===n.edgeStyle&&(s.firstChild.style.textShadow="0 0 4px #222, 0 0 4px #222, 0 0 4px #222, 0 0 4px "+Nn)),n.fontPercent&&1!==n.fontPercent){var o=g.parseFloat(s.style.fontSize);s.style.fontSize=o*n.fontPercent+"px",s.style.height="auto",s.style.top="auto",s.style.bottom="2px"}n.fontFamily&&"default"!==n.fontFamily&&("small-caps"===n.fontFamily?s.firstChild.style.fontVariant="small-caps":s.firstChild.style.fontFamily=jn[n.fontFamily])}}}},s}(Xt);Xt.registerComponent("TextTrackDisplay",Hn);var zn=function(r){function t(){return y(this,t),_(this,r.apply(this,arguments))}return v(t,r),t.prototype.createEl=function(){var t=this.player_.isAudio(),e=this.localize(t?"Audio Player":"Video Player"),i=D("span",{className:"vjs-control-text",innerHTML:this.localize("{1} is loading.",[e])}),n=r.prototype.createEl.call(this,"div",{className:"vjs-loading-spinner",dir:"ltr"});return n.appendChild(i),n},t}(Xt);Xt.registerComponent("LoadingSpinner",zn);var qn=function(e){function t(){return y(this,t),_(this,e.apply(this,arguments))}return v(t,e),t.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};e=k({innerHTML:'<span aria-hidden="true" class="vjs-icon-placeholder"></span>',className:this.buildCSSClass()},e),i=k({type:"button"},i);var n=Xt.prototype.createEl.call(this,"button",e,i);return this.createControlTextEl(n),n},t.prototype.addChild=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=this.constructor.name;return f.warn("Adding an actionable (user controllable) child to a Button ("+i+") is not supported; use a ClickableComponent instead."),Xt.prototype.addChild.call(this,t,e)},t.prototype.enable=function(){e.prototype.enable.call(this),this.el_.removeAttribute("disabled")},t.prototype.disable=function(){e.prototype.disable.call(this),this.el_.setAttribute("disabled","disabled")},t.prototype.handleKeyPress=function(t){32!==t.which&&13!==t.which&&e.prototype.handleKeyPress.call(this,t)},t}(Mn);Xt.registerComponent("Button",qn);var Wn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.mouseused_=!1,i.on("mousedown",i.handleMouseDown),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-big-play-button"},r.prototype.handleClick=function(t){var e=this.player_.play();if(this.mouseused_&&t.clientX&&t.clientY)Ie(e);else{var i=this.player_.getChild("controlBar"),n=i&&i.getChild("playToggle");if(n){var r=function(){return n.focus()};xe(e)?e.then(r,function(){}):this.setTimeout(r,1)}else this.player_.focus()}},r.prototype.handleKeyPress=function(t){this.mouseused_=!1,n.prototype.handleKeyPress.call(this,t)},r.prototype.handleMouseDown=function(t){this.mouseused_=!0},r}(qn);Wn.prototype.controlText_="Play Video",Xt.registerComponent("BigPlayButton",Wn);var Gn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.controlText(e&&e.controlText||i.localize("Close")),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-close-button "+n.prototype.buildCSSClass.call(this)},r.prototype.handleClick=function(t){this.trigger({type:"close",bubbles:!1})},r}(qn);Xt.registerComponent("CloseButton",Gn);var Xn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"play",i.handlePlay),i.on(t,"pause",i.handlePause),i.on(t,"ended",i.handleEnded),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-play-control "+n.prototype.buildCSSClass.call(this)},r.prototype.handleClick=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},r.prototype.handleSeeked=function(t){this.removeClass("vjs-ended"),this.player_.paused()?this.handlePause(t):this.handlePlay(t)},r.prototype.handlePlay=function(t){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.controlText("Pause")},r.prototype.handlePause=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.controlText("Play")},r.prototype.handleEnded=function(t){this.removeClass("vjs-playing"),this.addClass("vjs-ended"),this.controlText("Replay"),this.one(this.player_,"seeked",this.handleSeeked)},r}(qn);Xn.prototype.controlText_="Play",Xt.registerComponent("PlayToggle",Xn);var Yn=function(t,e){t=t<0?0:t;var i=Math.floor(t%60),n=Math.floor(t/60%60),r=Math.floor(t/3600),a=Math.floor(e/60%60),s=Math.floor(e/3600);return(isNaN(t)||t===1/0)&&(r=n=i="-"),(r=0<r||0<s?r+":":"")+(n=((r||10<=a)&&n<10?"0"+n:n)+":")+(i=i<10?"0"+i:i)},$n=Yn;function Kn(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t;return $n(t,e)}var Jn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.throttledUpdateContent=Pt(Ot(i,i.updateContent),25),i.on(t,"timeupdate",i.throttledUpdateContent),i}return v(r,n),r.prototype.createEl=function(t){var e=this.buildCSSClass(),i=n.prototype.createEl.call(this,"div",{className:e+" vjs-time-control vjs-control",innerHTML:'<span class="vjs-control-text">'+this.localize(this.labelText_)+" </span>"});return this.contentEl_=D("span",{className:e+"-display"},{"aria-live":"off"}),this.updateTextNode_(),i.appendChild(this.contentEl_),i},r.prototype.dispose=function(){this.contentEl_=null,this.textNode_=null,n.prototype.dispose.call(this)},r.prototype.updateTextNode_=function(){if(this.contentEl_){for(;this.contentEl_.firstChild;)this.contentEl_.removeChild(this.contentEl_.firstChild);this.textNode_=p.createTextNode(this.formattedTime_||this.formatTime_(0)),this.contentEl_.appendChild(this.textNode_)}},r.prototype.formatTime_=function(t){return Kn(t)},r.prototype.updateFormattedTime_=function(t){var e=this.formatTime_(t);e!==this.formattedTime_&&(this.formattedTime_=e,this.requestAnimationFrame(this.updateTextNode_))},r.prototype.updateContent=function(t){},r}(Xt);Jn.prototype.labelText_="Time",Jn.prototype.controlText_="Time",Xt.registerComponent("TimeDisplay",Jn);var Qn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"ended",i.handleEnded),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-current-time"},r.prototype.updateContent=function(t){var e=this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime();this.updateFormattedTime_(e)},r.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(this.player_.duration())},r}(Jn);Qn.prototype.labelText_="Current Time",Qn.prototype.controlText_="Current Time",Xt.registerComponent("CurrentTimeDisplay",Qn);var Zn=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"durationchange",i.updateContent),i.on(t,"loadedmetadata",i.throttledUpdateContent),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-duration"},r.prototype.updateContent=function(t){var e=this.player_.duration();e&&this.duration_!==e&&(this.duration_=e,this.updateFormattedTime_(e))},r}(Jn);Zn.prototype.labelText_="Duration",Zn.prototype.controlText_="Duration",Xt.registerComponent("DurationDisplay",Zn);var tr=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-control vjs-time-divider",innerHTML:"<div><span>/</span></div>"})},e}(Xt);Xt.registerComponent("TimeDivider",tr);var er=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"durationchange",i.throttledUpdateContent),i.on(t,"ended",i.handleEnded),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-remaining-time"},r.prototype.formatTime_=function(t){return"-"+n.prototype.formatTime_.call(this,t)},r.prototype.updateContent=function(t){this.player_.duration()&&(this.player_.remainingTimeDisplay?this.updateFormattedTime_(this.player_.remainingTimeDisplay()):this.updateFormattedTime_(this.player_.remainingTime()))},r.prototype.handleEnded=function(t){this.player_.duration()&&this.updateFormattedTime_(0)},r}(Jn);er.prototype.labelText_="Remaining Time",er.prototype.controlText_="Remaining Time",Xt.registerComponent("RemainingTimeDisplay",er);var ir=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.updateShowing(),i.on(i.player(),"durationchange",i.updateShowing),i}return v(r,n),r.prototype.createEl=function(){var t=n.prototype.createEl.call(this,"div",{className:"vjs-live-control vjs-control"});return this.contentEl_=D("div",{className:"vjs-live-display",innerHTML:'<span class="vjs-control-text">'+this.localize("Stream Type")+" </span>"+this.localize("LIVE")},{"aria-live":"off"}),t.appendChild(this.contentEl_),t},r.prototype.dispose=function(){this.contentEl_=null,n.prototype.dispose.call(this)},r.prototype.updateShowing=function(t){this.player().duration()===1/0?this.show():this.hide()},r}(Xt);Xt.registerComponent("LiveDisplay",ir);var nr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.bar=i.getChild(i.options_.barName),i.vertical(!!i.options_.vertical),i.enable(),i}return v(r,n),r.prototype.enabled=function(){return this.enabled_},r.prototype.enable=function(){this.enabled()||(this.on("mousedown",this.handleMouseDown),this.on("touchstart",this.handleMouseDown),this.on("focus",this.handleFocus),this.on("blur",this.handleBlur),this.on("click",this.handleClick),this.on(this.player_,"controlsvisible",this.update),this.playerEvent&&this.on(this.player_,this.playerEvent,this.update),this.removeClass("disabled"),this.setAttribute("tabindex",0),this.enabled_=!0)},r.prototype.disable=function(){if(this.enabled()){var t=this.bar.el_.ownerDocument;this.off("mousedown",this.handleMouseDown),this.off("touchstart",this.handleMouseDown),this.off("focus",this.handleFocus),this.off("blur",this.handleBlur),this.off("click",this.handleClick),this.off(this.player_,"controlsvisible",this.update),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.removeAttribute("tabindex"),this.addClass("disabled"),this.playerEvent&&this.off(this.player_,this.playerEvent,this.update),this.enabled_=!1}},r.prototype.createEl=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};return e.className=e.className+" vjs-slider",e=k({tabIndex:0},e),i=k({role:"slider","aria-valuenow":0,"aria-valuemin":0,"aria-valuemax":100,tabIndex:0},i),n.prototype.createEl.call(this,t,e,i)},r.prototype.handleMouseDown=function(t){var e=this.bar.el_.ownerDocument;"mousedown"===t.type&&t.preventDefault(),"touchstart"!==t.type||he||t.preventDefault(),G(),this.addClass("vjs-sliding"),this.trigger("slideractive"),this.on(e,"mousemove",this.handleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchmove",this.handleMouseMove),this.on(e,"touchend",this.handleMouseUp),this.handleMouseMove(t)},r.prototype.handleMouseMove=function(t){},r.prototype.handleMouseUp=function(){var t=this.bar.el_.ownerDocument;X(),this.removeClass("vjs-sliding"),this.trigger("sliderinactive"),this.off(t,"mousemove",this.handleMouseMove),this.off(t,"mouseup",this.handleMouseUp),this.off(t,"touchmove",this.handleMouseMove),this.off(t,"touchend",this.handleMouseUp),this.update()},r.prototype.update=function(){if(this.el_){var t=this.getPercent(),e=this.bar;if(e){("number"!=typeof t||t!=t||t<0||t===1/0)&&(t=0);var i=(100*t).toFixed(2)+"%",n=e.el().style;return this.vertical()?n.height=i:n.width=i,t}}},r.prototype.calculateDistance=function(t){var e=K(this.el_,t);return this.vertical()?e.y:e.x},r.prototype.handleFocus=function(){this.on(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},r.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepBack()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepForward())},r.prototype.handleBlur=function(){this.off(this.bar.el_.ownerDocument,"keydown",this.handleKeyPress)},r.prototype.handleClick=function(t){t.stopImmediatePropagation(),t.preventDefault()},r.prototype.vertical=function(t){if(void 0===t)return this.vertical_||!1;this.vertical_=!!t,this.vertical_?this.addClass("vjs-slider-vertical"):this.addClass("vjs-slider-horizontal")},r}(Xt);Xt.registerComponent("Slider",nr);var rr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.partEls_=[],i.on(t,"progress",i.update),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-load-progress",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Loaded")+"</span>: 0%</span>"})},r.prototype.dispose=function(){this.partEls_=null,n.prototype.dispose.call(this)},r.prototype.update=function(t){var e=this.player_.buffered(),i=this.player_.duration(),n=this.player_.bufferedEnd(),r=this.partEls_,a=function(t,e){var i=t/e||0;return 100*(1<=i?1:i)+"%"};this.el_.style.width=a(n,i);for(var s=0;s<e.length;s++){var o=e.start(s),u=e.end(s),l=r[s];l||(l=this.el_.appendChild(D()),r[s]=l),l.style.left=a(o,n),l.style.width=a(u-o,n)}for(var c=r.length;c>e.length;c--)this.el_.removeChild(r[c-1]);r.length=e.length},r}(Xt);Xt.registerComponent("LoadProgressBar",rr);var ar=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-time-tooltip"})},e.prototype.update=function(t,e,i){var n=Y(this.el_),r=Y(this.player_.el()),a=t.width*e;if(r&&n){var s=t.left-r.left+a,o=t.width-a+(r.right-t.right),u=n.width/2;s<u?u+=u-s:o<u&&(u=o),u<0?u=0:u>n.width&&(u=n.width),this.el_.style.right="-"+u+"px",R(this.el_,i)}},e}(Xt);Xt.registerComponent("TimeTooltip",ar);var sr=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-play-progress vjs-slider-bar",innerHTML:'<span class="vjs-control-text"><span>'+this.localize("Progress")+"</span>: 0%</span>"})},e.prototype.update=function(i,n){var r=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=Kn(r.player_.scrubbing()?r.player_.getCache().currentTime:r.player_.currentTime(),r.player_.duration()),e=r.getChild("timeTooltip");e&&e.update(i,n,t)})},e}(Xt);sr.prototype.options_={children:[]},re||se||sr.prototype.options_.children.push("timeTooltip"),Xt.registerComponent("PlayProgressBar",sr);var or=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.update=Pt(Ot(i,i.update),25),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-mouse-display"})},r.prototype.update=function(i,n){var r=this;this.rafId_&&this.cancelAnimationFrame(this.rafId_),this.rafId_=this.requestAnimationFrame(function(){var t=r.player_.duration(),e=Kn(n*t,t);r.el_.style.left=i.width*n+"px",r.getChild("timeTooltip").update(i,n,e)})},r}(Xt);or.prototype.options_={children:["timeTooltip"]},Xt.registerComponent("MouseTimeDisplay",or);var ur=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.setEventHandlers_(),i}return v(r,n),r.prototype.setEventHandlers_=function(){var t=this;this.update=Pt(Ot(this,this.update),30),this.on(this.player_,"timeupdate",this.update),this.on(this.player_,"ended",this.handleEnded),this.updateInterval=null,this.on(this.player_,["playing"],function(){t.clearInterval(t.updateInterval),t.updateInterval=t.setInterval(function(){t.requestAnimationFrame(function(){t.update()})},30)}),this.on(this.player_,["ended","pause","waiting"],function(){t.clearInterval(t.updateInterval)}),this.on(this.player_,["timeupdate","ended"],this.update)},r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-progress-holder"},{"aria-label":this.localize("Progress Bar")})},r.prototype.update_=function(t,e){var i=this.player_.duration();this.el_.setAttribute("aria-valuenow",(100*e).toFixed(2)),this.el_.setAttribute("aria-valuetext",this.localize("progress bar timing: currentTime={1} duration={2}",[Kn(t,i),Kn(i,i)],"{1} of {2}")),this.bar.update(Y(this.el_),e)},r.prototype.update=function(t){var e=n.prototype.update.call(this);return this.update_(this.getCurrentTime_(),e),e},r.prototype.getCurrentTime_=function(){return this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime()},r.prototype.handleEnded=function(t){this.update_(this.player_.duration(),1)},r.prototype.getPercent=function(){var t=this.getCurrentTime_()/this.player_.duration();return 1<=t?1:t||0},r.prototype.handleMouseDown=function(t){it(t)&&(t.stopPropagation(),this.player_.scrubbing(!0),this.videoWasPlaying=!this.player_.paused(),this.player_.pause(),n.prototype.handleMouseDown.call(this,t))},r.prototype.handleMouseMove=function(t){if(it(t)){var e=this.calculateDistance(t)*this.player_.duration();e===this.player_.duration()&&(e-=.1),this.player_.currentTime(e)}},r.prototype.enable=function(){n.prototype.enable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.show()},r.prototype.disable=function(){n.prototype.disable.call(this);var t=this.getChild("mouseTimeDisplay");t&&t.hide()},r.prototype.handleMouseUp=function(t){n.prototype.handleMouseUp.call(this,t),t&&t.stopPropagation(),this.player_.scrubbing(!1),this.player_.trigger({type:"timeupdate",target:this,manuallyTriggered:!0}),this.videoWasPlaying&&Ie(this.player_.play())},r.prototype.stepForward=function(){this.player_.currentTime(this.player_.currentTime()+5)},r.prototype.stepBack=function(){this.player_.currentTime(this.player_.currentTime()-5)},r.prototype.handleAction=function(t){this.player_.paused()?this.player_.play():this.player_.pause()},r.prototype.handleKeyPress=function(t){32===t.which||13===t.which?(t.preventDefault(),this.handleAction(t)):n.prototype.handleKeyPress&&n.prototype.handleKeyPress.call(this,t)},r}(nr);ur.prototype.options_={children:["loadProgressBar","playProgressBar"],barName:"playProgressBar"},re||se||ur.prototype.options_.children.splice(1,0,"mouseTimeDisplay"),ur.prototype.playerEvent="timeupdate",Xt.registerComponent("SeekBar",ur);var lr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.handleMouseMove=Pt(Ot(i,i.handleMouseMove),25),i.throttledHandleMouseSeek=Pt(Ot(i,i.handleMouseSeek),25),i.enable(),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-progress-control vjs-control"})},r.prototype.handleMouseMove=function(t){var e=this.getChild("seekBar");if(e){var i=e.getChild("mouseTimeDisplay"),n=e.el(),r=Y(n),a=K(n,t).x;1<a?a=1:a<0&&(a=0),i&&i.update(r,a)}},r.prototype.handleMouseSeek=function(t){var e=this.getChild("seekBar");e&&e.handleMouseMove(t)},r.prototype.enabled=function(){return this.enabled_},r.prototype.disable=function(){this.children().forEach(function(t){return t.disable&&t.disable()}),this.enabled()&&(this.off(["mousedown","touchstart"],this.handleMouseDown),this.off(this.el_,"mousemove",this.handleMouseMove),this.handleMouseUp(),this.addClass("disabled"),this.enabled_=!1)},r.prototype.enable=function(){this.children().forEach(function(t){return t.enable&&t.enable()}),this.enabled()||(this.on(["mousedown","touchstart"],this.handleMouseDown),this.on(this.el_,"mousemove",this.handleMouseMove),this.removeClass("disabled"),this.enabled_=!0)},r.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument,i=this.getChild("seekBar");i&&i.handleMouseDown(t),this.on(e,"mousemove",this.throttledHandleMouseSeek),this.on(e,"touchmove",this.throttledHandleMouseSeek),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},r.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument,i=this.getChild("seekBar");i&&i.handleMouseUp(t),this.off(e,"mousemove",this.throttledHandleMouseSeek),this.off(e,"touchmove",this.throttledHandleMouseSeek),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},r}(Xt);lr.prototype.options_={children:["seekBar"]},Xt.registerComponent("ProgressControl",lr);var cr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"fullscreenchange",i.handleFullscreenChange),!1===p[Se.fullscreenEnabled]&&i.disable(),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-fullscreen-control "+n.prototype.buildCSSClass.call(this)},r.prototype.handleFullscreenChange=function(t){this.player_.isFullscreen()?this.controlText("Non-Fullscreen"):this.controlText("Fullscreen")},r.prototype.handleClick=function(t){this.player_.isFullscreen()?this.player_.exitFullscreen():this.player_.requestFullscreen()},r}(qn);cr.prototype.controlText_="Fullscreen",Xt.registerComponent("FullscreenToggle",cr);var hr=function(t,e){e.tech_&&!e.tech_.featuresVolumeControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresVolumeControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},dr=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-volume-level",innerHTML:'<span class="vjs-control-text"></span>'})},e}(Xt);Xt.registerComponent("VolumeLevel",dr);var pr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on("slideractive",i.updateLastVolume_),i.on(t,"volumechange",i.updateARIAAttributes),t.ready(function(){return i.updateARIAAttributes()}),i}return v(r,n),r.prototype.createEl=function(){return n.prototype.createEl.call(this,"div",{className:"vjs-volume-bar vjs-slider-bar"},{"aria-label":this.localize("Volume Level"),"aria-live":"polite"})},r.prototype.handleMouseDown=function(t){it(t)&&n.prototype.handleMouseDown.call(this,t)},r.prototype.handleMouseMove=function(t){it(t)&&(this.checkMuted(),this.player_.volume(this.calculateDistance(t)))},r.prototype.checkMuted=function(){this.player_.muted()&&this.player_.muted(!1)},r.prototype.getPercent=function(){return this.player_.muted()?0:this.player_.volume()},r.prototype.stepForward=function(){this.checkMuted(),this.player_.volume(this.player_.volume()+.1)},r.prototype.stepBack=function(){this.checkMuted(),this.player_.volume(this.player_.volume()-.1)},r.prototype.updateARIAAttributes=function(t){var e=this.player_.muted()?0:this.volumeAsPercentage_();this.el_.setAttribute("aria-valuenow",e),this.el_.setAttribute("aria-valuetext",e+"%")},r.prototype.volumeAsPercentage_=function(){return Math.round(100*this.player_.volume())},r.prototype.updateLastVolume_=function(){var t=this,e=this.player_.volume();this.one("sliderinactive",function(){0===t.player_.volume()&&t.player_.lastVolume_(e)})},r}(nr);pr.prototype.options_={children:["volumeLevel"],barName:"volumeLevel"},pr.prototype.playerEvent="volumechange",Xt.registerComponent("VolumeBar",pr);var fr=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,r),e.vertical=e.vertical||!1,("undefined"==typeof e.volumeBar||w(e.volumeBar))&&(e.volumeBar=e.volumeBar||{},e.volumeBar.vertical=e.vertical);var i=_(this,n.call(this,t,e));return hr(i,t),i.throttledHandleMouseMove=Pt(Ot(i,i.handleMouseMove),25),i.on("mousedown",i.handleMouseDown),i.on("touchstart",i.handleMouseDown),i.on(i.volumeBar,["focus","slideractive"],function(){i.volumeBar.addClass("vjs-slider-active"),i.addClass("vjs-slider-active"),i.trigger("slideractive")}),i.on(i.volumeBar,["blur","sliderinactive"],function(){i.volumeBar.removeClass("vjs-slider-active"),i.removeClass("vjs-slider-active"),i.trigger("sliderinactive")}),i}return v(r,n),r.prototype.createEl=function(){var t="vjs-volume-horizontal";return this.options_.vertical&&(t="vjs-volume-vertical"),n.prototype.createEl.call(this,"div",{className:"vjs-volume-control vjs-control "+t})},r.prototype.handleMouseDown=function(t){var e=this.el_.ownerDocument;this.on(e,"mousemove",this.throttledHandleMouseMove),this.on(e,"touchmove",this.throttledHandleMouseMove),this.on(e,"mouseup",this.handleMouseUp),this.on(e,"touchend",this.handleMouseUp)},r.prototype.handleMouseUp=function(t){var e=this.el_.ownerDocument;this.off(e,"mousemove",this.throttledHandleMouseMove),this.off(e,"touchmove",this.throttledHandleMouseMove),this.off(e,"mouseup",this.handleMouseUp),this.off(e,"touchend",this.handleMouseUp)},r.prototype.handleMouseMove=function(t){this.volumeBar.handleMouseMove(t)},r}(Xt);fr.prototype.options_={children:["volumeBar"]},Xt.registerComponent("VolumeControl",fr);var mr=function(t,e){e.tech_&&!e.tech_.featuresMuteControl&&t.addClass("vjs-hidden"),t.on(e,"loadstart",function(){e.tech_.featuresMuteControl?t.removeClass("vjs-hidden"):t.addClass("vjs-hidden")})},gr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return mr(i,t),i.on(t,["loadstart","volumechange"],i.update),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-mute-control "+n.prototype.buildCSSClass.call(this)},r.prototype.handleClick=function(t){var e=this.player_.volume(),i=this.player_.lastVolume_();if(0===e){var n=i<.1?.1:i;this.player_.volume(n),this.player_.muted(!1)}else this.player_.muted(!this.player_.muted())},r.prototype.update=function(t){this.updateIcon_(),this.updateControlText_()},r.prototype.updateIcon_=function(){var t=this.player_.volume(),e=3;re&&this.player_.muted(this.player_.tech_.el_.muted),0===t||this.player_.muted()?e=0:t<.33?e=1:t<.67&&(e=2);for(var i=0;i<4;i++)j(this.el_,"vjs-vol-"+i);N(this.el_,"vjs-vol-"+e)},r.prototype.updateControlText_=function(){var t=this.player_.muted()||0===this.player_.volume()?"Unmute":"Mute";this.controlText()!==t&&this.controlText(t)},r}(qn);gr.prototype.controlText_="Mute",Xt.registerComponent("MuteToggle",gr);var yr=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,r),"undefined"!=typeof e.inline?e.inline=e.inline:e.inline=!0,("undefined"==typeof e.volumeControl||w(e.volumeControl))&&(e.volumeControl=e.volumeControl||{},e.volumeControl.vertical=!e.inline);var i=_(this,n.call(this,t,e));return i.on(t,["loadstart"],i.volumePanelState_),i.on(i.volumeControl,["slideractive"],i.sliderActive_),i.on(i.volumeControl,["sliderinactive"],i.sliderInactive_),i}return v(r,n),r.prototype.sliderActive_=function(){this.addClass("vjs-slider-active")},r.prototype.sliderInactive_=function(){this.removeClass("vjs-slider-active")},r.prototype.volumePanelState_=function(){this.volumeControl.hasClass("vjs-hidden")&&this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-hidden"),this.volumeControl.hasClass("vjs-hidden")&&!this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-mute-toggle-only")},r.prototype.createEl=function(){var t="vjs-volume-panel-horizontal";return this.options_.inline||(t="vjs-volume-panel-vertical"),n.prototype.createEl.call(this,"div",{className:"vjs-volume-panel vjs-control "+t})},r}(Xt);yr.prototype.options_={children:["muteToggle","volumeControl"]},Xt.registerComponent("VolumePanel",yr);var vr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return e&&(i.menuButton_=e.menuButton),i.focusedChild_=-1,i.on("keydown",i.handleKeyPress),i}return v(r,n),r.prototype.addItem=function(e){this.addChild(e),e.on("click",Ot(this,function(t){this.menuButton_&&(this.menuButton_.unpressButton(),"CaptionSettingsMenuItem"!==e.name()&&this.menuButton_.focus())}))},r.prototype.createEl=function(){var t=this.options_.contentElType||"ul";this.contentEl_=D(t,{className:"vjs-menu-content"}),this.contentEl_.setAttribute("role","menu");var e=n.prototype.createEl.call(this,"div",{append:this.contentEl_,className:"vjs-menu"});return e.appendChild(this.contentEl_),vt(e,"click",function(t){t.preventDefault(),t.stopImmediatePropagation()}),e},r.prototype.dispose=function(){this.contentEl_=null,n.prototype.dispose.call(this)},r.prototype.handleKeyPress=function(t){37===t.which||40===t.which?(t.preventDefault(),this.stepForward()):38!==t.which&&39!==t.which||(t.preventDefault(),this.stepBack())},r.prototype.stepForward=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_+1),this.focus(t)},r.prototype.stepBack=function(){var t=0;void 0!==this.focusedChild_&&(t=this.focusedChild_-1),this.focus(t)},r.prototype.focus=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,e=this.children().slice();e.length&&e[0].className&&/vjs-menu-title/.test(e[0].className)&&e.shift(),0<e.length&&(t<0?t=0:t>=e.length&&(t=e.length-1),e[this.focusedChild_=t].el_.focus())},r}(Xt);Xt.registerComponent("Menu",vr);var _r=function(r){function a(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,a);var i=_(this,r.call(this,t,e));i.menuButton_=new qn(t,e),i.menuButton_.controlText(i.controlText_),i.menuButton_.el_.setAttribute("aria-haspopup","true");var n=qn.prototype.buildCSSClass();return i.menuButton_.el_.className=i.buildCSSClass()+" "+n,i.menuButton_.removeClass("vjs-control"),i.addChild(i.menuButton_),i.update(),i.enabled_=!0,i.on(i.menuButton_,"tap",i.handleClick),i.on(i.menuButton_,"click",i.handleClick),i.on(i.menuButton_,"focus",i.handleFocus),i.on(i.menuButton_,"blur",i.handleBlur),i.on("keydown",i.handleSubmenuKeyPress),i}return v(a,r),a.prototype.update=function(){var t=this.createMenu();this.menu&&(this.menu.dispose(),this.removeChild(this.menu)),this.menu=t,this.addChild(t),this.buttonPressed_=!1,this.menuButton_.el_.setAttribute("aria-expanded","false"),this.items&&this.items.length<=this.hideThreshold_?this.hide():this.show()},a.prototype.createMenu=function(){var t=new vr(this.player_,{menuButton:this});if(this.hideThreshold_=0,this.options_.title){var e=D("li",{className:"vjs-menu-title",innerHTML:Wt(this.options_.title),tabIndex:-1});this.hideThreshold_+=1,t.children_.unshift(e),M(e,t.contentEl())}if(this.items=this.createItems(),this.items)for(var i=0;i<this.items.length;i++)t.addItem(this.items[i]);return t},a.prototype.createItems=function(){},a.prototype.createEl=function(){return r.prototype.createEl.call(this,"div",{className:this.buildWrapperCSSClass()},{})},a.prototype.buildWrapperCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+qn.prototype.buildCSSClass()+" "+r.prototype.buildCSSClass.call(this)},a.prototype.buildCSSClass=function(){var t="vjs-menu-button";return!0===this.options_.inline?t+="-inline":t+="-popup","vjs-menu-button "+t+" "+r.prototype.buildCSSClass.call(this)},a.prototype.controlText=function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:this.menuButton_.el();return this.menuButton_.controlText(t,e)},a.prototype.handleClick=function(t){this.one(this.menu.contentEl(),"mouseleave",Ot(this,function(t){this.unpressButton(),this.el_.blur()})),this.buttonPressed_?this.unpressButton():this.pressButton()},a.prototype.focus=function(){this.menuButton_.focus()},a.prototype.blur=function(){this.menuButton_.blur()},a.prototype.handleFocus=function(){vt(p,"keydown",Ot(this,this.handleKeyPress))},a.prototype.handleBlur=function(){_t(p,"keydown",Ot(this,this.handleKeyPress))},a.prototype.handleKeyPress=function(t){27===t.which||9===t.which?(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus())):38!==t.which&&40!==t.which||this.buttonPressed_||(this.pressButton(),t.preventDefault())},a.prototype.handleSubmenuKeyPress=function(t){27!==t.which&&9!==t.which||(this.buttonPressed_&&this.unpressButton(),9!==t.which&&(t.preventDefault(),this.menuButton_.el_.focus()))},a.prototype.pressButton=function(){if(this.enabled_){if(this.buttonPressed_=!0,this.menu.lockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","true"),re&&x())return;this.menu.focus()}},a.prototype.unpressButton=function(){this.enabled_&&(this.buttonPressed_=!1,this.menu.unlockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","false"))},a.prototype.disable=function(){this.unpressButton(),this.enabled_=!1,this.addClass("vjs-disabled"),this.menuButton_.disable()},a.prototype.enable=function(){this.enabled_=!0,this.removeClass("vjs-disabled"),this.menuButton_.enable()},a}(Xt);Xt.registerComponent("MenuButton",_r);var br=function(a){function s(t,e){y(this,s);var i=e.tracks,n=_(this,a.call(this,t,e));if(n.items.length<=1&&n.hide(),!i)return _(n);var r=Ot(n,n.update);return i.addEventListener("removetrack",r),i.addEventListener("addtrack",r),n.player_.on("ready",r),n.player_.on("dispose",function(){i.removeEventListener("removetrack",r),i.removeEventListener("addtrack",r)}),n}return v(s,a),s}(_r);Xt.registerComponent("TrackButton",br);var Tr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.selectable=e.selectable,i.isSelected_=e.selected||!1,i.multiSelectable=e.multiSelectable,i.selected(i.isSelected_),i.selectable?i.multiSelectable?i.el_.setAttribute("role","menuitemcheckbox"):i.el_.setAttribute("role","menuitemradio"):i.el_.setAttribute("role","menuitem"),i}return v(r,n),r.prototype.createEl=function(t,e,i){return this.nonIconControl=!0,n.prototype.createEl.call(this,"li",k({className:"vjs-menu-item",innerHTML:'<span class="vjs-menu-item-text">'+this.localize(this.options_.label)+"</span>",tabIndex:-1},e),i)},r.prototype.handleClick=function(t){this.selected(!0)},r.prototype.selected=function(t){this.selectable&&(t?(this.addClass("vjs-selected"),this.el_.setAttribute("aria-checked","true"),this.controlText(", selected"),this.isSelected_=!0):(this.removeClass("vjs-selected"),this.el_.setAttribute("aria-checked","false"),this.controlText(""),this.isSelected_=!1))},r}(Mn);Xt.registerComponent("MenuItem",Tr);var Sr=function(u){function l(t,e){y(this,l);var i=e.track,n=t.textTracks();e.label=i.label||i.language||"Unknown",e.selected="showing"===i.mode;var r=_(this,u.call(this,t,e));r.track=i;var a=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];r.handleTracksChange.apply(r,e)},s=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];r.handleSelectedLanguageChange.apply(r,e)};if(t.on(["loadstart","texttrackchange"],a),n.addEventListener("change",a),n.addEventListener("selectedlanguagechange",s),r.on("dispose",function(){t.off(["loadstart","texttrackchange"],a),n.removeEventListener("change",a),n.removeEventListener("selectedlanguagechange",s)}),void 0===n.onchange){var o=void 0;r.on(["tap","click"],function(){if("object"!==Ee(g.Event))try{o=new g.Event("change")}catch(t){}o||(o=p.createEvent("Event")).initEvent("change",!0,!0),n.dispatchEvent(o)})}return r.handleTracksChange(),r}return v(l,u),l.prototype.handleClick=function(t){var e=this.track.kind,i=this.track.kinds,n=this.player_.textTracks();if(i||(i=[e]),u.prototype.handleClick.call(this,t),n)for(var r=0;r<n.length;r++){var a=n[r];a===this.track&&-1<i.indexOf(a.kind)?"showing"!==a.mode&&(a.mode="showing"):"disabled"!==a.mode&&(a.mode="disabled")}},l.prototype.handleTracksChange=function(t){var e="showing"===this.track.mode;e!==this.isSelected_&&this.selected(e)},l.prototype.handleSelectedLanguageChange=function(t){if("showing"===this.track.mode){var e=this.player_.cache_.selectedLanguage;if(e&&e.enabled&&e.language===this.track.language&&e.kind!==this.track.kind)return;this.player_.cache_.selectedLanguage={enabled:!0,language:this.track.language,kind:this.track.kind}}},l.prototype.dispose=function(){this.track=null,u.prototype.dispose.call(this)},l}(Tr);Xt.registerComponent("TextTrackMenuItem",Sr);var kr=function(i){function n(t,e){return y(this,n),e.track={player:t,kind:e.kind,kinds:e.kinds,default:!1,mode:"disabled"},e.kinds||(e.kinds=[e.kind]),e.label?e.track.label=e.label:e.track.label=e.kinds.join(" and ")+" off",e.selectable=!0,e.multiSelectable=!1,_(this,i.call(this,t,e))}return v(n,i),n.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),i=!0,n=0,r=e.length;n<r;n++){var a=e[n];if(-1<this.options_.kinds.indexOf(a.kind)&&"showing"===a.mode){i=!1;break}}i!==this.isSelected_&&this.selected(i)},n.prototype.handleSelectedLanguageChange=function(t){for(var e=this.player().textTracks(),i=!0,n=0,r=e.length;n<r;n++){var a=e[n];if(-1<["captions","descriptions","subtitles"].indexOf(a.kind)&&"showing"===a.mode){i=!1;break}}i&&(this.player_.cache_.selectedLanguage={enabled:!1})},n}(Sr);Xt.registerComponent("OffTextTrackMenuItem",kr);var Cr=function(i){function n(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return y(this,n),e.tracks=t.textTracks(),_(this,i.call(this,t,e))}return v(n,i),n.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[],e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:Sr,i=void 0;this.label_&&(i=this.label_+" off"),t.push(new kr(this.player_,{kinds:this.kinds_,kind:this.kind_,label:i})),this.hideThreshold_+=1;var n=this.player_.textTracks();Array.isArray(this.kinds_)||(this.kinds_=[this.kind_]);for(var r=0;r<n.length;r++){var a=n[r];if(-1<this.kinds_.indexOf(a.kind)){var s=new e(this.player_,{track:a,selectable:!0,multiSelectable:!1});s.addClass("vjs-"+a.kind+"-menu-item"),t.push(s)}}return t},n}(br);Xt.registerComponent("TextTrackButton",Cr);var wr=function(s){function o(t,e){y(this,o);var i=e.track,n=e.cue,r=t.currentTime();e.selectable=!0,e.multiSelectable=!1,e.label=n.text,e.selected=n.startTime<=r&&r<n.endTime;var a=_(this,s.call(this,t,e));return a.track=i,a.cue=n,i.addEventListener("cuechange",Ot(a,a.update)),a}return v(o,s),o.prototype.handleClick=function(t){s.prototype.handleClick.call(this),this.player_.currentTime(this.cue.startTime),this.update(this.cue.startTime)},o.prototype.update=function(t){var e=this.cue,i=this.player_.currentTime();this.selected(e.startTime<=i&&i<e.endTime)},o}(Tr);Xt.registerComponent("ChaptersTrackMenuItem",wr);var Er=function(n){function r(t,e,i){return y(this,r),_(this,n.call(this,t,e,i))}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-chapters-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-chapters-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.update=function(t){this.track_&&(!t||"addtrack"!==t.type&&"removetrack"!==t.type)||this.setTrack(this.findChaptersTrack()),n.prototype.update.call(this)},r.prototype.setTrack=function(t){if(this.track_!==t){if(this.updateHandler_||(this.updateHandler_=this.update.bind(this)),this.track_){var e=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);e&&e.removeEventListener("load",this.updateHandler_),this.track_=null}if(this.track_=t,this.track_){this.track_.mode="hidden";var i=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);i&&i.addEventListener("load",this.updateHandler_)}}},r.prototype.findChaptersTrack=function(){for(var t=this.player_.textTracks()||[],e=t.length-1;0<=e;e--){var i=t[e];if(i.kind===this.kind_)return i}},r.prototype.getMenuCaption=function(){return this.track_&&this.track_.label?this.track_.label:this.localize(Wt(this.kind_))},r.prototype.createMenu=function(){return this.options_.title=this.getMenuCaption(),n.prototype.createMenu.call(this)},r.prototype.createItems=function(){var t=[];if(!this.track_)return t;var e=this.track_.cues;if(!e)return t;for(var i=0,n=e.length;i<n;i++){var r=e[i],a=new wr(this.player_,{track:this.track_,cue:r});t.push(a)}return t},r}(Cr);Er.prototype.kind_="chapters",Er.prototype.controlText_="Chapters",Xt.registerComponent("ChaptersButton",Er);var Ar=function(s){function o(t,e,i){y(this,o);var n=_(this,s.call(this,t,e,i)),r=t.textTracks(),a=Ot(n,n.handleTracksChange);return r.addEventListener("change",a),n.on("dispose",function(){r.removeEventListener("change",a)}),n}return v(o,s),o.prototype.handleTracksChange=function(t){for(var e=this.player().textTracks(),i=!1,n=0,r=e.length;n<r;n++){var a=e[n];if(a.kind!==this.kind_&&"showing"===a.mode){i=!0;break}}i?this.disable():this.enable()},o.prototype.buildCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildCSSClass.call(this)},o.prototype.buildWrapperCSSClass=function(){return"vjs-descriptions-button "+s.prototype.buildWrapperCSSClass.call(this)},o}(Cr);Ar.prototype.kind_="descriptions",Ar.prototype.controlText_="Descriptions",Xt.registerComponent("DescriptionsButton",Ar);var Lr=function(n){function r(t,e,i){return y(this,r),_(this,n.call(this,t,e,i))}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-subtitles-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-subtitles-button "+n.prototype.buildWrapperCSSClass.call(this)},r}(Cr);Lr.prototype.kind_="subtitles",Lr.prototype.controlText_="Subtitles",Xt.registerComponent("SubtitlesButton",Lr);var Or=function(n){function r(t,e){y(this,r),e.track={player:t,kind:e.kind,label:e.kind+" settings",selectable:!1,default:!1,mode:"disabled"},e.selectable=!1,e.name="CaptionSettingsMenuItem";var i=_(this,n.call(this,t,e));return i.addClass("vjs-texttrack-settings"),i.controlText(", opens "+e.kind+" settings dialog"),i}return v(r,n),r.prototype.handleClick=function(t){this.player().getChild("textTrackSettings").open()},r}(Sr);Xt.registerComponent("CaptionSettingsMenuItem",Or);var Pr=function(n){function r(t,e,i){return y(this,r),_(this,n.call(this,t,e,i))}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-captions-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-captions-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new Or(this.player_,{kind:this.kind_})),this.hideThreshold_+=1),n.prototype.createItems.call(this,t)},r}(Cr);Pr.prototype.kind_="captions",Pr.prototype.controlText_="Captions",Xt.registerComponent("CaptionsButton",Pr);var Ur=function(r){function t(){return y(this,t),_(this,r.apply(this,arguments))}return v(t,r),t.prototype.createEl=function(t,e,i){var n='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"captions"===this.options_.track.kind&&(n+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Captions")+"</span>\n "),n+="</span>",r.prototype.createEl.call(this,t,k({innerHTML:n},e),i)},t}(Sr);Xt.registerComponent("SubsCapsMenuItem",Ur);var xr=function(n){function r(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};y(this,r);var i=_(this,n.call(this,t,e));return i.label_="subtitles",-1<["en","en-us","en-ca","fr-ca"].indexOf(i.player_.language_)&&(i.label_="captions"),i.menuButton_.controlText(Wt(i.label_)),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-subs-caps-button "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-subs-caps-button "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createItems=function(){var t=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(t.push(new Or(this.player_,{kind:this.label_})),this.hideThreshold_+=1),t=n.prototype.createItems.call(this,t,Ur)},r}(Cr);xr.prototype.kinds_=["captions","subtitles"],xr.prototype.controlText_="Subtitles",Xt.registerComponent("SubsCapsButton",xr);var Ir=function(s){function o(t,e){y(this,o);var i=e.track,n=t.audioTracks();e.label=i.label||i.language||"Unknown",e.selected=i.enabled;var r=_(this,s.call(this,t,e));r.track=i,r.addClass("vjs-"+i.kind+"-menu-item");var a=function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];r.handleTracksChange.apply(r,e)};return n.addEventListener("change",a),r.on("dispose",function(){n.removeEventListener("change",a)}),r}return v(o,s),o.prototype.createEl=function(t,e,i){var n='<span class="vjs-menu-item-text">'+this.localize(this.options_.label);return"main-desc"===this.options_.track.kind&&(n+='\n <span aria-hidden="true" class="vjs-icon-placeholder"></span>\n <span class="vjs-control-text"> '+this.localize("Descriptions")+"</span>\n "),n+="</span>",s.prototype.createEl.call(this,t,k({innerHTML:n},e),i)},o.prototype.handleClick=function(t){var e=this.player_.audioTracks();s.prototype.handleClick.call(this,t);for(var i=0;i<e.length;i++){var n=e[i];n.enabled=n===this.track}},o.prototype.handleTracksChange=function(t){this.selected(this.track.enabled)},o}(Tr);Xt.registerComponent("AudioTrackMenuItem",Ir);var Dr=function(i){function n(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};return y(this,n),e.tracks=t.audioTracks(),_(this,i.call(this,t,e))}return v(n,i),n.prototype.buildCSSClass=function(){return"vjs-audio-button "+i.prototype.buildCSSClass.call(this)},n.prototype.buildWrapperCSSClass=function(){return"vjs-audio-button "+i.prototype.buildWrapperCSSClass.call(this)},n.prototype.createItems=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:[];this.hideThreshold_=1;for(var e=this.player_.audioTracks(),i=0;i<e.length;i++){var n=e[i];t.push(new Ir(this.player_,{track:n,selectable:!0,multiSelectable:!1}))}return t},n}(br);Dr.prototype.controlText_="Audio Track",Xt.registerComponent("AudioTrackButton",Dr);var Rr=function(a){function s(t,e){y(this,s);var i=e.rate,n=parseFloat(i,10);e.label=i,e.selected=1===n,e.selectable=!0,e.multiSelectable=!1;var r=_(this,a.call(this,t,e));return r.label=i,r.rate=n,r.on(t,"ratechange",r.update),r}return v(s,a),s.prototype.handleClick=function(t){a.prototype.handleClick.call(this),this.player().playbackRate(this.rate)},s.prototype.update=function(t){this.selected(this.player().playbackRate()===this.rate)},s}(Tr);Rr.prototype.contentElType="button",Xt.registerComponent("PlaybackRateMenuItem",Rr);var Mr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.updateVisibility(),i.updateLabel(),i.on(t,"loadstart",i.updateVisibility),i.on(t,"ratechange",i.updateLabel),i}return v(r,n),r.prototype.createEl=function(){var t=n.prototype.createEl.call(this);return this.labelEl_=D("div",{className:"vjs-playback-rate-value",innerHTML:"1x"}),t.appendChild(this.labelEl_),t},r.prototype.dispose=function(){this.labelEl_=null,n.prototype.dispose.call(this)},r.prototype.buildCSSClass=function(){return"vjs-playback-rate "+n.prototype.buildCSSClass.call(this)},r.prototype.buildWrapperCSSClass=function(){return"vjs-playback-rate "+n.prototype.buildWrapperCSSClass.call(this)},r.prototype.createMenu=function(){var t=new vr(this.player()),e=this.playbackRates();if(e)for(var i=e.length-1;0<=i;i--)t.addChild(new Rr(this.player(),{rate:e[i]+"x"}));return t},r.prototype.updateARIAAttributes=function(){this.el().setAttribute("aria-valuenow",this.player().playbackRate())},r.prototype.handleClick=function(t){for(var e=this.player().playbackRate(),i=this.playbackRates(),n=i[0],r=0;r<i.length;r++)if(i[r]>e){n=i[r];break}this.player().playbackRate(n)},r.prototype.playbackRates=function(){return this.options_.playbackRates||this.options_.playerOptions&&this.options_.playerOptions.playbackRates},r.prototype.playbackRateSupported=function(){return this.player().tech_&&this.player().tech_.featuresPlaybackRate&&this.playbackRates()&&0<this.playbackRates().length},r.prototype.updateVisibility=function(t){this.playbackRateSupported()?this.removeClass("vjs-hidden"):this.addClass("vjs-hidden")},r.prototype.updateLabel=function(t){this.playbackRateSupported()&&(this.labelEl_.innerHTML=this.player().playbackRate()+"x")},r}(_r);Mr.prototype.controlText_="Playback Rate",Xt.registerComponent("PlaybackRateMenuButton",Mr);var Br=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.buildCSSClass=function(){return"vjs-spacer "+t.prototype.buildCSSClass.call(this)},e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:this.buildCSSClass()})},e}(Xt);Xt.registerComponent("Spacer",Br);var Nr=function(e){function t(){return y(this,t),_(this,e.apply(this,arguments))}return v(t,e),t.prototype.buildCSSClass=function(){return"vjs-custom-control-spacer "+e.prototype.buildCSSClass.call(this)},t.prototype.createEl=function(){var t=e.prototype.createEl.call(this,{className:this.buildCSSClass()});return t.innerHTML=" ",t},t}(Br);Xt.registerComponent("CustomControlSpacer",Nr);var jr=function(t){function e(){return y(this,e),_(this,t.apply(this,arguments))}return v(e,t),e.prototype.createEl=function(){return t.prototype.createEl.call(this,"div",{className:"vjs-control-bar",dir:"ltr"})},e}(Xt);jr.prototype.options_={children:["playToggle","volumePanel","currentTimeDisplay","timeDivider","durationDisplay","progressControl","liveDisplay","remainingTimeDisplay","customControlSpacer","playbackRateMenuButton","chaptersButton","descriptionsButton","subsCapsButton","audioTrackButton","fullscreenToggle"]},Xt.registerComponent("ControlBar",jr);var Fr=function(n){function r(t,e){y(this,r);var i=_(this,n.call(this,t,e));return i.on(t,"error",i.open),i}return v(r,n),r.prototype.buildCSSClass=function(){return"vjs-error-display "+n.prototype.buildCSSClass.call(this)},r.prototype.content=function(){var t=this.player().error();return t?this.localize(t.message):""},r}(Ne);Fr.prototype.options_=Gt(Ne.prototype.options_,{pauseOnOpen:!1,fillAlways:!0,temporary:!1,uncloseable:!0}),Xt.registerComponent("ErrorDisplay",Fr);var Vr="vjs-text-track-settings",Hr=["#000","Black"],zr=["#00F","Blue"],qr=["#0FF","Cyan"],Wr=["#0F0","Green"],Gr=["#F0F","Magenta"],Xr=["#F00","Red"],Yr=["#FFF","White"],$r=["#FF0","Yellow"],Kr=["1","Opaque"],Jr=["0.5","Semi-Transparent"],Qr=["0","Transparent"],Zr={backgroundColor:{selector:".vjs-bg-color > select",id:"captions-background-color-%s",label:"Color",options:[Hr,Yr,Xr,Wr,zr,$r,Gr,qr]},backgroundOpacity:{selector:".vjs-bg-opacity > select",id:"captions-background-opacity-%s",label:"Transparency",options:[Kr,Jr,Qr]},color:{selector:".vjs-fg-color > select",id:"captions-foreground-color-%s",label:"Color",options:[Yr,Hr,Xr,Wr,zr,$r,Gr,qr]},edgeStyle:{selector:".vjs-edge-style > select",id:"%s",label:"Text Edge Style",options:[["none","None"],["raised","Raised"],["depressed","Depressed"],["uniform","Uniform"],["dropshadow","Dropshadow"]]},fontFamily:{selector:".vjs-font-family > select",id:"captions-font-family-%s",label:"Font Family",options:[["proportionalSansSerif","Proportional Sans-Serif"],["monospaceSansSerif","Monospace Sans-Serif"],["proportionalSerif","Proportional Serif"],["monospaceSerif","Monospace Serif"],["casual","Casual"],["script","Script"],["small-caps","Small Caps"]]},fontPercent:{selector:".vjs-font-percent > select",id:"captions-font-size-%s",label:"Font Size",options:[["0.50","50%"],["0.75","75%"],["1.00","100%"],["1.25","125%"],["1.50","150%"],["1.75","175%"],["2.00","200%"],["3.00","300%"],["4.00","400%"]],default:2,parser:function(t){return"1.00"===t?null:Number(t)}},textOpacity:{selector:".vjs-text-opacity > select",id:"captions-foreground-opacity-%s",label:"Transparency",options:[Kr,Jr]},windowColor:{selector:".vjs-window-color > select",id:"captions-window-color-%s",label:"Color"},windowOpacity:{selector:".vjs-window-opacity > select",id:"captions-window-opacity-%s",label:"Transparency",options:[Qr,Jr,Kr]}};function ta(t,e){if(e&&(t=e(t)),t&&"none"!==t)return t}Zr.windowColor.options=Zr.backgroundColor.options;var ea=function(n){function r(t,e){y(this,r),e.temporary=!1;var i=_(this,n.call(this,t,e));return i.updateDisplay=Ot(i,i.updateDisplay),i.fill(),i.hasBeenOpened_=i.hasBeenFilled_=!0,i.endDialog=D("p",{className:"vjs-control-text",textContent:i.localize("End of dialog window.")}),i.el().appendChild(i.endDialog),i.setDefaults(),void 0===e.persistTextTrackSettings&&(i.options_.persistTextTrackSettings=i.options_.playerOptions.persistTextTrackSettings),i.on(i.$(".vjs-done-button"),"click",function(){i.saveSettings(),i.close()}),i.on(i.$(".vjs-default-button"),"click",function(){i.setDefaults(),i.updateDisplay()}),S(Zr,function(t){i.on(i.$(t.selector),"change",i.updateDisplay)}),i.options_.persistTextTrackSettings&&i.restoreSettings(),i}return v(r,n),r.prototype.dispose=function(){this.endDialog=null,n.prototype.dispose.call(this)},r.prototype.createElSelect_=function(t){var i=this,e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:"",n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:"label",r=Zr[t],a=r.id.replace("%s",this.id_),s=[e,a].join(" ").trim();return["<"+n+' id="'+a+'" class="'+("label"===n?"vjs-label":"")+'">',this.localize(r.label),"</"+n+">",'<select aria-labelledby="'+s+'">'].concat(r.options.map(function(t){var e=a+"-"+t[1].replace(/\W+/g,"");return['<option id="'+e+'" value="'+t[0]+'" ','aria-labelledby="'+s+" "+e+'">',i.localize(t[1]),"</option>"].join("")})).concat("</select>").join("")},r.prototype.createElFgColor_=function(){var t="captions-text-legend-"+this.id_;return['<fieldset class="vjs-fg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Text"),"</legend>",this.createElSelect_("color",t),'<span class="vjs-text-opacity vjs-opacity">',this.createElSelect_("textOpacity",t),"</span>","</fieldset>"].join("")},r.prototype.createElBgColor_=function(){var t="captions-background-"+this.id_;return['<fieldset class="vjs-bg-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Background"),"</legend>",this.createElSelect_("backgroundColor",t),'<span class="vjs-bg-opacity vjs-opacity">',this.createElSelect_("backgroundOpacity",t),"</span>","</fieldset>"].join("")},r.prototype.createElWinColor_=function(){var t="captions-window-"+this.id_;return['<fieldset class="vjs-window-color vjs-track-setting">','<legend id="'+t+'">',this.localize("Window"),"</legend>",this.createElSelect_("windowColor",t),'<span class="vjs-window-opacity vjs-opacity">',this.createElSelect_("windowOpacity",t),"</span>","</fieldset>"].join("")},r.prototype.createElColors_=function(){return D("div",{className:"vjs-track-settings-colors",innerHTML:[this.createElFgColor_(),this.createElBgColor_(),this.createElWinColor_()].join("")})},r.prototype.createElFont_=function(){return D("div",{className:"vjs-track-settings-font",innerHTML:['<fieldset class="vjs-font-percent vjs-track-setting">',this.createElSelect_("fontPercent","","legend"),"</fieldset>",'<fieldset class="vjs-edge-style vjs-track-setting">',this.createElSelect_("edgeStyle","","legend"),"</fieldset>",'<fieldset class="vjs-font-family vjs-track-setting">',this.createElSelect_("fontFamily","","legend"),"</fieldset>"].join("")})},r.prototype.createElControls_=function(){var t=this.localize("restore all settings to the default values");return D("div",{className:"vjs-track-settings-controls",innerHTML:['<button class="vjs-default-button" title="'+t+'">',this.localize("Reset"),'<span class="vjs-control-text"> '+t+"</span>","</button>",'<button class="vjs-done-button">'+this.localize("Done")+"</button>"].join("")})},r.prototype.content=function(){return[this.createElColors_(),this.createElFont_(),this.createElControls_()]},r.prototype.label=function(){return this.localize("Caption Settings Dialog")},r.prototype.description=function(){return this.localize("Beginning of dialog window. Escape will cancel and close the window.")},r.prototype.buildCSSClass=function(){return n.prototype.buildCSSClass.call(this)+" vjs-text-track-settings"},r.prototype.getValues=function(){var s=this;return function(i,n){var t=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0;return T(i).reduce(function(t,e){return n(t,i[e],e)},t)}(Zr,function(t,e,i){var n,r,a=(n=s.$(e.selector),r=e.parser,ta(n.options[n.options.selectedIndex].value,r));return void 0!==a&&(t[i]=a),t},{})},r.prototype.setValues=function(i){var n=this;S(Zr,function(t,e){!function(t,e,i){if(e)for(var n=0;n<t.options.length;n++)if(ta(t.options[n].value,i)===e){t.selectedIndex=n;break}}(n.$(t.selector),i[e],t.parser)})},r.prototype.setDefaults=function(){var i=this;S(Zr,function(t){var e=t.hasOwnProperty("default")?t.default:0;i.$(t.selector).selectedIndex=e})},r.prototype.restoreSettings=function(){var t=void 0;try{t=JSON.parse(g.localStorage.getItem(Vr))}catch(t){f.warn(t)}t&&this.setValues(t)},r.prototype.saveSettings=function(){if(this.options_.persistTextTrackSettings){var t=this.getValues();try{Object.keys(t).length?g.localStorage.setItem(Vr,JSON.stringify(t)):g.localStorage.removeItem(Vr)}catch(t){f.warn(t)}}},r.prototype.updateDisplay=function(){var t=this.player_.getChild("textTrackDisplay");t&&t.updateDisplay()},r.prototype.conditionalBlur_=function(){this.previouslyActiveEl_=null,this.off(p,"keydown",this.handleKeyDown);var t=this.player_.controlBar,e=t&&t.subsCapsButton,i=t&&t.captionsButton;e?e.focus():i&&i.focus()},r}(Ne);Xt.registerComponent("TextTrackSettings",ea);var ia=function(a){function s(t,e){y(this,s);var i=e.ResizeObserver||g.ResizeObserver;null===e.ResizeObserver&&(i=!1);var n=Gt({createEl:!i,reportTouchActivity:!1},e),r=_(this,a.call(this,t,n));return r.ResizeObserver=e.ResizeObserver||g.ResizeObserver,r.loadListener_=null,r.resizeObserver_=null,r.debouncedHandler_=Ut(function(){r.resizeHandler()},100,!1,r),i?(r.resizeObserver_=new r.ResizeObserver(r.debouncedHandler_),r.resizeObserver_.observe(t.el())):(r.loadListener_=function(){r.el_&&r.el_.contentWindow&&vt(r.el_.contentWindow,"resize",r.debouncedHandler_)},r.one("load",r.loadListener_)),r}return v(s,a),s.prototype.createEl=function(){return a.prototype.createEl.call(this,"iframe",{className:"vjs-resize-manager"})},s.prototype.resizeHandler=function(){this.player_&&this.player_.trigger&&this.player_.trigger("playerresize")},s.prototype.dispose=function(){this.debouncedHandler_&&this.debouncedHandler_.cancel(),this.resizeObserver_&&(this.player_.el()&&this.resizeObserver_.unobserve(this.player_.el()),this.resizeObserver_.disconnect()),this.el_&&this.el_.contentWindow&&_t(this.el_.contentWindow,"resize",this.debouncedHandler_),this.loadListener_&&this.off("load",this.loadListener_),this.ResizeObserver=null,this.resizeObserver=null,this.debouncedHandler_=null,this.loadListener_=null},s}(Xt);Xt.registerComponent("ResizeManager",ia);var na=function(t){var e=t.el();if(e.hasAttribute("src"))return t.triggerSourceset(e.src),!0;var i=t.$$("source"),n=[],r="";if(!i.length)return!1;for(var a=0;a<i.length;a++){var s=i[a].src;s&&-1===n.indexOf(s)&&n.push(s)}return!!n.length&&(1===n.length&&(r=n[0]),t.triggerSourceset(r),!0)},ra=Object.defineProperty({},"innerHTML",{get:function(){return this.cloneNode(!0).innerHTML},set:function(t){var e=p.createElement(this.nodeName.toLowerCase());e.innerHTML=t;for(var i=p.createDocumentFragment();e.childNodes.length;)i.appendChild(e.childNodes[0]);return this.innerText="",g.Element.prototype.appendChild.call(this,i),this.innerHTML}}),aa=function(t,e){for(var i={},n=0;n<t.length&&!((i=Object.getOwnPropertyDescriptor(t[n],e))&&i.set&&i.get);n++);return i.enumerable=!0,i.configurable=!0,i},sa=function(a){var s=a.el();if(!s.resetSourceWatch_){var e={},t=aa([a.el(),g.HTMLMediaElement.prototype,g.Element.prototype,ra],"innerHTML"),i=function(r){return function(){for(var t=arguments.length,e=Array(t),i=0;i<t;i++)e[i]=arguments[i];var n=r.apply(s,e);return na(a),n}};["append","appendChild","insertAdjacentHTML"].forEach(function(t){s[t]&&(e[t]=s[t],s[t]=i(e[t]))}),Object.defineProperty(s,"innerHTML",Gt(t,{set:i(t.set)})),s.resetSourceWatch_=function(){s.resetSourceWatch_=null,Object.keys(e).forEach(function(t){s[t]=e[t]}),Object.defineProperty(s,"innerHTML",t)},a.one("sourceset",s.resetSourceWatch_)}},oa=Object.defineProperty({},"src",{get:function(){return this.hasAttribute("src")?ti(g.Element.prototype.getAttribute.call(this,"src")):""},set:function(t){return g.Element.prototype.setAttribute.call(this,"src",t),t}}),ua=function(n){if(n.featuresSourceset){var r=n.el();if(!r.resetSourceset_){var i=aa([n.el(),g.HTMLMediaElement.prototype,oa],"src"),a=r.setAttribute,e=r.load;Object.defineProperty(r,"src",Gt(i,{set:function(t){var e=i.set.call(r,t);return n.triggerSourceset(r.src),e}})),r.setAttribute=function(t,e){var i=a.call(r,t,e);return/src/i.test(t)&&n.triggerSourceset(r.src),i},r.load=function(){var t=e.call(r);return na(n)||(n.triggerSourceset(""),sa(n)),t},r.currentSrc?n.triggerSourceset(r.currentSrc):na(n)||sa(n),r.resetSourceset_=function(){r.resetSourceset_=null,r.load=e,r.setAttribute=a,Object.defineProperty(r,"src",i),r.resetSourceWatch_&&r.resetSourceWatch_()}}}},la=h(["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."],["Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\n This may prevent text tracks from loading."]),ca=function(c){function h(t,e){y(this,h);var i=_(this,c.call(this,t,e)),n=t.source,r=!1;if(n&&(i.el_.currentSrc!==n.src||t.tag&&3===t.tag.initNetworkState_)?i.setSource(n):i.handleLateInit_(i.el_),t.enableSourceset&&i.setupSourcesetHandling_(),i.el_.hasChildNodes()){for(var a=i.el_.childNodes,s=a.length,o=[];s--;){var u=a[s];"track"===u.nodeName.toLowerCase()&&(i.featuresNativeTextTracks?(i.remoteTextTrackEls().addTrackElement_(u),i.remoteTextTracks().addTrack(u.track),i.textTracks().addTrack(u.track),r||i.el_.hasAttribute("crossorigin")||!ii(u.src)||(r=!0)):o.push(u))}for(var l=0;l<o.length;l++)i.el_.removeChild(o[l])}return i.proxyNativeTracks_(),i.featuresNativeTextTracks&&r&&f.warn(m(la)),i.restoreMetadataTracksInIOSNativePlayer_(),(ge||ie||ue)&&!0===t.nativeControlsForTouch&&i.setControls(!0),i.proxyWebkitFullscreen_(),i.triggerReady(),i}return v(h,c),h.prototype.dispose=function(){this.el_&&this.el_.resetSourceset_&&this.el_.resetSourceset_(),h.disposeMediaElement(this.el_),this.options_=null,c.prototype.dispose.call(this)},h.prototype.setupSourcesetHandling_=function(){ua(this)},h.prototype.restoreMetadataTracksInIOSNativePlayer_=function(){var n=this.textTracks(),r=void 0,t=function(){r=[];for(var t=0;t<n.length;t++){var e=n[t];"metadata"===e.kind&&r.push({track:e,storedMode:e.mode})}};t(),n.addEventListener("change",t),this.on("dispose",function(){return n.removeEventListener("change",t)});var e=function t(){for(var e=0;e<r.length;e++){var i=r[e];"disabled"===i.track.mode&&i.track.mode!==i.storedMode&&(i.track.mode=i.storedMode)}n.removeEventListener("change",t)};this.on("webkitbeginfullscreen",function(){n.removeEventListener("change",t),n.removeEventListener("change",e),n.addEventListener("change",e)}),this.on("webkitendfullscreen",function(){n.removeEventListener("change",t),n.addEventListener("change",t),n.removeEventListener("change",e)})},h.prototype.overrideNative_=function(t,e){var i=this;if(e===this["featuresNative"+t+"Tracks"]){var n=t.toLowerCase();this[n+"TracksListeners_"]&&Object.keys(this[n+"TracksListeners_"]).forEach(function(t){i.el()[n+"Tracks"].removeEventListener(t,i[n+"TracksListeners_"][t])}),this["featuresNative"+t+"Tracks"]=!e,this[n+"TracksListeners_"]=null,this.proxyNativeTracksForType_(n)}},h.prototype.overrideNativeAudioTracks=function(t){this.overrideNative_("Audio",t)},h.prototype.overrideNativeVideoTracks=function(t){this.overrideNative_("Video",t)},h.prototype.proxyNativeTracksForType_=function(t){var n=this,e=Bi[t],r=this.el()[e.getterName],a=this[e.getterName]();if(this["featuresNative"+e.capitalName+"Tracks"]&&r&&r.addEventListener){var s={change:function(t){a.trigger({type:"change",target:a,currentTarget:a,srcElement:a})},addtrack:function(t){a.addTrack(t.track)},removetrack:function(t){a.removeTrack(t.track)}},i=function(){for(var t=[],e=0;e<a.length;e++){for(var i=!1,n=0;n<r.length;n++)if(r[n]===a[e]){i=!0;break}i||t.push(a[e])}for(;t.length;)a.removeTrack(t.shift())};this[e.getterName+"Listeners_"]=s,Object.keys(s).forEach(function(e){var i=s[e];r.addEventListener(e,i),n.on("dispose",function(t){return r.removeEventListener(e,i)})}),this.on("loadstart",i),this.on("dispose",function(t){return n.off("loadstart",i)})}},h.prototype.proxyNativeTracks_=function(){var e=this;Bi.names.forEach(function(t){e.proxyNativeTracksForType_(t)})},h.prototype.createEl=function(){var t=this.options_.tag;if(!t||!this.options_.playerElIngest&&!this.movingMediaElementInDOM){if(t){var e=t.cloneNode(!0);t.parentNode&&t.parentNode.insertBefore(e,t),h.disposeMediaElement(t),t=e}else{t=p.createElement("video");var i=Gt({},this.options_.tag&&H(this.options_.tag));ge&&!0===this.options_.nativeControlsForTouch||delete i.controls,V(t,k(i,{id:this.options_.techId,class:"vjs-tech"}))}t.playerId=this.options_.playerId}"undefined"!=typeof this.options_.preload&&q(t,"preload",this.options_.preload);for(var n=["loop","muted","playsinline","autoplay"],r=0;r<n.length;r++){var a=n[r],s=this.options_[a];"undefined"!=typeof s&&(s?q(t,a,a):W(t,a),t[a]=s)}return t},h.prototype.handleLateInit_=function(t){if(0!==t.networkState&&3!==t.networkState){if(0===t.readyState){var e=!1,i=function(){e=!0};this.on("loadstart",i);var n=function(){e||this.trigger("loadstart")};return this.on("loadedmetadata",n),void this.ready(function(){this.off("loadstart",i),this.off("loadedmetadata",n),e||this.trigger("loadstart")})}var r=["loadstart"];r.push("loadedmetadata"),2<=t.readyState&&r.push("loadeddata"),3<=t.readyState&&r.push("canplay"),4<=t.readyState&&r.push("canplaythrough"),this.ready(function(){r.forEach(function(t){this.trigger(t)},this)})}},h.prototype.setCurrentTime=function(t){try{this.el_.currentTime=t}catch(t){f(t,"Video is not ready. (Video.js)")}},h.prototype.duration=function(){var e=this;if(this.el_.duration===1/0&&se&&he&&0===this.el_.currentTime){return this.on("timeupdate",function t(){0<e.el_.currentTime&&(e.el_.duration===1/0&&e.trigger("durationchange"),e.off("timeupdate",t))}),NaN}return this.el_.duration||NaN},h.prototype.width=function(){return this.el_.offsetWidth},h.prototype.height=function(){return this.el_.offsetHeight},h.prototype.proxyWebkitFullscreen_=function(){var t=this;if("webkitDisplayingFullscreen"in this.el_){var e=function(){this.trigger("fullscreenchange",{isFullscreen:!1})},i=function(){"webkitPresentationMode"in this.el_&&"picture-in-picture"!==this.el_.webkitPresentationMode&&(this.one("webkitendfullscreen",e),this.trigger("fullscreenchange",{isFullscreen:!0}))};this.on("webkitbeginfullscreen",i),this.on("dispose",function(){t.off("webkitbeginfullscreen",i),t.off("webkitendfullscreen",e)})}},h.prototype.supportsFullScreen=function(){if("function"==typeof this.el_.webkitEnterFullScreen){var t=g.navigator&&g.navigator.userAgent||"";if(/Android/.test(t)||!/Chrome|Mac OS X 10.5/.test(t))return!0}return!1},h.prototype.enterFullScreen=function(){var t=this.el_;t.paused&&t.networkState<=t.HAVE_METADATA?(this.el_.play(),this.setTimeout(function(){t.pause(),t.webkitEnterFullScreen()},0)):t.webkitEnterFullScreen()},h.prototype.exitFullScreen=function(){this.el_.webkitExitFullScreen()},h.prototype.src=function(t){if(void 0===t)return this.el_.src;this.setSrc(t)},h.prototype.reset=function(){h.resetMediaElement(this.el_)},h.prototype.currentSrc=function(){return this.currentSource_?this.currentSource_.src:this.el_.currentSrc},h.prototype.setControls=function(t){this.el_.controls=!!t},h.prototype.addTextTrack=function(t,e,i){return this.featuresNativeTextTracks?this.el_.addTextTrack(t,e,i):c.prototype.addTextTrack.call(this,t,e,i)},h.prototype.createRemoteTextTrack=function(t){if(!this.featuresNativeTextTracks)return c.prototype.createRemoteTextTrack.call(this,t);var e=p.createElement("track");return t.kind&&(e.kind=t.kind),t.label&&(e.label=t.label),(t.language||t.srclang)&&(e.srclang=t.language||t.srclang),t.default&&(e.default=t.default),t.id&&(e.id=t.id),t.src&&(e.src=t.src),e},h.prototype.addRemoteTextTrack=function(t,e){var i=c.prototype.addRemoteTextTrack.call(this,t,e);return this.featuresNativeTextTracks&&this.el().appendChild(i),i},h.prototype.removeRemoteTextTrack=function(t){if(c.prototype.removeRemoteTextTrack.call(this,t),this.featuresNativeTextTracks)for(var e=this.$$("track"),i=e.length;i--;)t!==e[i]&&t!==e[i].track||this.el().removeChild(e[i])},h.prototype.getVideoPlaybackQuality=function(){if("function"==typeof this.el().getVideoPlaybackQuality)return this.el().getVideoPlaybackQuality();var t={};return"undefined"!=typeof this.el().webkitDroppedFrameCount&&"undefined"!=typeof this.el().webkitDecodedFrameCount&&(t.droppedVideoFrames=this.el().webkitDroppedFrameCount,t.totalVideoFrames=this.el().webkitDecodedFrameCount),g.performance&&"function"==typeof g.performance.now?t.creationTime=g.performance.now():g.performance&&g.performance.timing&&"number"==typeof g.performance.timing.navigationStart&&(t.creationTime=g.Date.now()-g.performance.timing.navigationStart),t},h}(Sn);if(P()){ca.TEST_VID=p.createElement("video");var ha=p.createElement("track");ha.kind="captions",ha.srclang="en",ha.label="English",ca.TEST_VID.appendChild(ha)}ca.isSupported=function(){try{ca.TEST_VID.volume=.5}catch(t){return!1}return!(!ca.TEST_VID||!ca.TEST_VID.canPlayType)},ca.canPlayType=function(t){return ca.TEST_VID.canPlayType(t)},ca.canPlaySource=function(t,e){return ca.canPlayType(t.type)},ca.canControlVolume=function(){try{var t=ca.TEST_VID.volume;return ca.TEST_VID.volume=t/2+.1,t!==ca.TEST_VID.volume}catch(t){return!1}},ca.canMuteVolume=function(){try{var t=ca.TEST_VID.muted;return ca.TEST_VID.muted=!t,ca.TEST_VID.muted?q(ca.TEST_VID,"muted","muted"):W(ca.TEST_VID,"muted"),t!==ca.TEST_VID.muted}catch(t){return!1}},ca.canControlPlaybackRate=function(){if(se&&he&&de<58)return!1;try{var t=ca.TEST_VID.playbackRate;return ca.TEST_VID.playbackRate=t/2+.1,t!==ca.TEST_VID.playbackRate}catch(t){return!1}},ca.canOverrideAttributes=function(){try{var t=function(){};Object.defineProperty(p.createElement("video"),"src",{get:t,set:t}),Object.defineProperty(p.createElement("audio"),"src",{get:t,set:t}),Object.defineProperty(p.createElement("video"),"innerHTML",{get:t,set:t}),Object.defineProperty(p.createElement("audio"),"innerHTML",{get:t,set:t})}catch(t){return!1}return!0},ca.supportsNativeTextTracks=function(){return me||re&&he},ca.supportsNativeVideoTracks=function(){return!(!ca.TEST_VID||!ca.TEST_VID.videoTracks)},ca.supportsNativeAudioTracks=function(){return!(!ca.TEST_VID||!ca.TEST_VID.audioTracks)},ca.Events=["loadstart","suspend","abort","error","emptied","stalled","loadedmetadata","loadeddata","canplay","canplaythrough","playing","waiting","seeking","seeked","ended","durationchange","timeupdate","progress","play","pause","ratechange","resize","volumechange"],ca.prototype.featuresVolumeControl=ca.canControlVolume(),ca.prototype.featuresMuteControl=ca.canMuteVolume(),ca.prototype.featuresPlaybackRate=ca.canControlPlaybackRate(),ca.prototype.featuresSourceset=ca.canOverrideAttributes(),ca.prototype.movingMediaElementInDOM=!re,ca.prototype.featuresFullscreenResize=!0,ca.prototype.featuresProgressEvents=!0,ca.prototype.featuresTimeupdateEvents=!0,ca.prototype.featuresNativeTextTracks=ca.supportsNativeTextTracks(),ca.prototype.featuresNativeVideoTracks=ca.supportsNativeVideoTracks(),ca.prototype.featuresNativeAudioTracks=ca.supportsNativeAudioTracks();var da=ca.TEST_VID&&ca.TEST_VID.constructor.prototype.canPlayType,pa=/^application\/(?:x-|vnd\.apple\.)mpegurl/i;ca.patchCanPlayType=function(){4<=oe&&!le&&!he&&(ca.TEST_VID.constructor.prototype.canPlayType=function(t){return t&&pa.test(t)?"maybe":da.call(this,t)})},ca.unpatchCanPlayType=function(){var t=ca.TEST_VID.constructor.prototype.canPlayType;return ca.TEST_VID.constructor.prototype.canPlayType=da,t},ca.patchCanPlayType(),ca.disposeMediaElement=function(t){if(t){for(t.parentNode&&t.parentNode.removeChild(t);t.hasChildNodes();)t.removeChild(t.firstChild);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},ca.resetMediaElement=function(t){if(t){for(var e=t.querySelectorAll("source"),i=e.length;i--;)t.removeChild(e[i]);t.removeAttribute("src"),"function"==typeof t.load&&function(){try{t.load()}catch(t){}}()}},["muted","defaultMuted","autoplay","controls","loop","playsinline"].forEach(function(t){ca.prototype[t]=function(){return this.el_[t]||this.el_.hasAttribute(t)}}),["muted","defaultMuted","autoplay","loop","playsinline"].forEach(function(e){ca.prototype["set"+Wt(e)]=function(t){(this.el_[e]=t)?this.el_.setAttribute(e,e):this.el_.removeAttribute(e)}}),["paused","currentTime","buffered","volume","poster","preload","error","seeking","seekable","ended","playbackRate","defaultPlaybackRate","played","networkState","readyState","videoWidth","videoHeight"].forEach(function(t){ca.prototype[t]=function(){return this.el_[t]}}),["volume","src","poster","preload","playbackRate","defaultPlaybackRate"].forEach(function(e){ca.prototype["set"+Wt(e)]=function(t){this.el_[e]=t}}),["pause","load","play"].forEach(function(t){ca.prototype[t]=function(){return this.el_[t]()}}),Sn.withSourceHandlers(ca),ca.nativeSourceHandler={},ca.nativeSourceHandler.canPlayType=function(t){try{return ca.TEST_VID.canPlayType(t)}catch(t){return""}},ca.nativeSourceHandler.canHandleSource=function(t,e){if(t.type)return ca.nativeSourceHandler.canPlayType(t.type);if(t.src){var i=ei(t.src);return ca.nativeSourceHandler.canPlayType("video/"+i)}return""},ca.nativeSourceHandler.handleSource=function(t,e,i){e.setSrc(t.src)},ca.nativeSourceHandler.dispose=function(){},ca.registerSourceHandler(ca.nativeSourceHandler),Sn.registerTech("Html5",ca);var fa=h(["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "],["\n Using the tech directly can be dangerous. I hope you know what you're doing.\n See https://github.com/videojs/video.js/issues/2617 for more info.\n "]),ma=["progress","abort","suspend","emptied","stalled","loadedmetadata","loadeddata","timeupdate","resize","volumechange","texttrackchange"],ga={canplay:"CanPlay",canplaythrough:"CanPlayThrough",playing:"Playing",seeked:"Seeked"},ya=function(c){function h(t,e,i){if(y(this,h),t.id=t.id||e.id||"vjs_video_"+ot(),(e=k(h.getTagSettings(t),e)).initChildren=!1,e.createEl=!1,e.evented=!1,e.reportTouchActivity=!1,!e.language)if("function"==typeof t.closest){var n=t.closest("[lang]");n&&n.getAttribute&&(e.language=n.getAttribute("lang"))}else for(var r=t;r&&1===r.nodeType;){if(H(r).hasOwnProperty("lang")){e.language=r.getAttribute("lang");break}r=r.parentNode}var a=_(this,c.call(this,null,e,i));if(a.isPosterFromTech_=!1,a.queuedCallbacks_=[],a.isReady_=!1,a.hasStarted_=!1,a.userActive_=!1,!a.options_||!a.options_.techOrder||!a.options_.techOrder.length)throw new Error("No techOrder specified. Did you overwrite videojs.options instead of just changing the properties you want to override?");if(a.tag=t,a.tagAttributes=t&&H(t),a.language(a.options_.language),e.languages){var s={};Object.getOwnPropertyNames(e.languages).forEach(function(t){s[t.toLowerCase()]=e.languages[t]}),a.languages_=s}else a.languages_=h.prototype.options_.languages;a.cache_={},a.poster_=e.poster||"",a.controls_=!!e.controls,a.cache_.lastVolume=1,t.controls=!1,t.removeAttribute("controls"),t.hasAttribute("autoplay")?a.options_.autoplay=!0:a.autoplay(a.options_.autoplay),a.scrubbing_=!1,a.el_=a.createEl(),a.cache_.lastPlaybackRate=a.defaultPlaybackRate(),Ht(a,{eventBusKey:"el_"});var o=Gt(a.options_);if(e.plugins){var u=e.plugins;Object.keys(u).forEach(function(t){if("function"!=typeof this[t])throw new Error('plugin "'+t+'" does not exist');this[t](u[t])},a)}a.options_.playerOptions=o,a.middleware_=[],a.initChildren(),a.isAudio("audio"===t.nodeName.toLowerCase()),a.controls()?a.addClass("vjs-controls-enabled"):a.addClass("vjs-controls-disabled"),a.el_.setAttribute("role","region"),a.isAudio()?a.el_.setAttribute("aria-label",a.localize("Audio Player")):a.el_.setAttribute("aria-label",a.localize("Video Player")),a.isAudio()&&a.addClass("vjs-audio"),a.flexNotSupported_()&&a.addClass("vjs-no-flex"),re||a.addClass("vjs-workinghover"),h.players[a.id_]=a;var l=d.split(".")[0];return a.addClass("vjs-v"+l),a.userActive(!0),a.reportUserActivity(),a.one("play",a.listenForUserActivity_),a.on("fullscreenchange",a.handleFullscreenChange_),a.on("stageclick",a.handleStageClick_),a.changingSrc_=!1,a.playWaitingForReady_=!1,a.playOnLoadstart_=null,a}return v(h,c),h.prototype.dispose=function(){this.trigger("dispose"),this.off("dispose"),this.styleEl_&&this.styleEl_.parentNode&&(this.styleEl_.parentNode.removeChild(this.styleEl_),this.styleEl_=null),h.players[this.id_]=null,this.tag&&this.tag.player&&(this.tag.player=null),this.el_&&this.el_.player&&(this.el_.player=null),this.tech_&&(this.tech_.dispose(),this.isPosterFromTech_=!1,this.poster_=""),this.playerElIngest_&&(this.playerElIngest_=null),this.tag&&(this.tag=null),Cn[this.id()]=null,c.prototype.dispose.call(this)},h.prototype.createEl=function(){var e=this.tag,i=void 0,t=this.playerElIngest_=e.parentNode&&e.parentNode.hasAttribute&&e.parentNode.hasAttribute("data-vjs-player"),n="video-js"===this.tag.tagName.toLowerCase();t?i=this.el_=e.parentNode:n||(i=this.el_=c.prototype.createEl.call(this,"div"));var r=H(e);if(n){for(i=this.el_=e,e=this.tag=p.createElement("video");i.children.length;)e.appendChild(i.firstChild);B(i,"video-js")||N(i,"video-js"),i.appendChild(e),t=this.playerElIngest_=i,Object.keys(i).forEach(function(t){e[t]=i[t]})}if(e.setAttribute("tabindex","-1"),r.tabindex="-1",pe&&(e.setAttribute("role","application"),r.role="application"),e.removeAttribute("width"),e.removeAttribute("height"),"width"in r&&delete r.width,"height"in r&&delete r.height,Object.getOwnPropertyNames(r).forEach(function(t){n&&"class"===t||i.setAttribute(t,r[t]),n&&e.setAttribute(t,r[t])}),e.playerId=e.id,e.id+="_html5_api",e.className="vjs-tech",e.player=i.player=this,this.addClass("vjs-paused"),!0!==g.VIDEOJS_NO_DYNAMIC_STYLE){this.styleEl_=At("vjs-styles-dimensions");var a=nt(".vjs-styles-defaults"),s=nt("head");s.insertBefore(this.styleEl_,a?a.nextSibling:s.firstChild)}this.width(this.options_.width),this.height(this.options_.height),this.fluid(this.options_.fluid),this.aspectRatio(this.options_.aspectRatio);for(var o=e.getElementsByTagName("a"),u=0;u<o.length;u++){var l=o.item(u);N(l,"vjs-hidden"),l.setAttribute("hidden","hidden")}return e.initNetworkState_=e.networkState,e.parentNode&&!t&&e.parentNode.insertBefore(i,e),M(e,i),this.children_.unshift(e),this.el_.setAttribute("lang",this.language_),this.el_=i},h.prototype.width=function(t){return this.dimension("width",t)},h.prototype.height=function(t){return this.dimension("height",t)},h.prototype.dimension=function(t,e){var i=t+"_";if(void 0===e)return this[i]||0;if(""===e)return this[i]=void 0,void this.updateStyleEl_();var n=parseFloat(e);isNaN(n)?f.error('Improper value "'+e+'" supplied for for '+t):(this[i]=n,this.updateStyleEl_())},h.prototype.fluid=function(t){if(void 0===t)return!!this.fluid_;this.fluid_=!!t,t?this.addClass("vjs-fluid"):this.removeClass("vjs-fluid"),this.updateStyleEl_()},h.prototype.aspectRatio=function(t){if(void 0===t)return this.aspectRatio_;if(!/^\d+\:\d+$/.test(t))throw new Error("Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.");this.aspectRatio_=t,this.fluid(!0),this.updateStyleEl_()},h.prototype.updateStyleEl_=function(){if(!0!==g.VIDEOJS_NO_DYNAMIC_STYLE){var t=void 0,e=void 0,i=void 0,n=(void 0!==this.aspectRatio_&&"auto"!==this.aspectRatio_?this.aspectRatio_:0<this.videoWidth()?this.videoWidth()+":"+this.videoHeight():"16:9").split(":"),r=n[1]/n[0];t=void 0!==this.width_?this.width_:void 0!==this.height_?this.height_/r:this.videoWidth()||300,e=void 0!==this.height_?this.height_:t*r,i=/^[^a-zA-Z]/.test(this.id())?"dimensions-"+this.id():this.id()+"-dimensions",this.addClass(i),Lt(this.styleEl_,"\n ."+i+" {\n width: "+t+"px;\n height: "+e+"px;\n }\n\n ."+i+".vjs-fluid {\n padding-top: "+100*r+"%;\n }\n ")}else{var a="number"==typeof this.width_?this.width_:this.options_.width,s="number"==typeof this.height_?this.height_:this.options_.height,o=this.tech_&&this.tech_.el();o&&(0<=a&&(o.width=a),0<=s&&(o.height=s))}},h.prototype.loadTech_=function(t,e){var i=this;this.tech_&&this.unloadTech_();var n=Wt(t),r=t.charAt(0).toLowerCase()+t.slice(1);"Html5"!==n&&this.tag&&(Sn.getTech("Html5").disposeMediaElement(this.tag),this.tag.player=null,this.tag=null),this.techName_=n,this.isReady_=!1;var a={source:e,autoplay:"string"!=typeof this.autoplay()&&this.autoplay(),nativeControlsForTouch:this.options_.nativeControlsForTouch,playerId:this.id(),techId:this.id()+"_"+r+"_api",playsinline:this.options_.playsinline,preload:this.options_.preload,loop:this.options_.loop,muted:this.options_.muted,poster:this.poster(),language:this.language(),playerElIngest:this.playerElIngest_||!1,"vtt.js":this.options_["vtt.js"],canOverridePoster:!!this.options_.techCanOverridePoster,enableSourceset:this.options_.enableSourceset};ji.names.forEach(function(t){var e=ji[t];a[e.getterName]=i[e.privateName]}),k(a,this.options_[n]),k(a,this.options_[r]),k(a,this.options_[t.toLowerCase()]),this.tag&&(a.tag=this.tag),e&&e.src===this.cache_.src&&0<this.cache_.currentTime&&(a.startTime=this.cache_.currentTime);var s=Sn.getTech(t);if(!s)throw new Error("No Tech named '"+n+"' exists! '"+n+"' should be registered using videojs.registerTech()'");this.tech_=new s(a),this.tech_.ready(Ot(this,this.handleTechReady_),!0),Me(this.textTracksJson_||[],this.tech_),ma.forEach(function(t){i.on(i.tech_,t,i["handleTech"+Wt(t)+"_"])}),Object.keys(ga).forEach(function(e){i.on(i.tech_,e,function(t){0===i.tech_.playbackRate()&&i.tech_.seeking()?i.queuedCallbacks_.push({callback:i["handleTech"+ga[e]+"_"].bind(i),event:t}):i["handleTech"+ga[e]+"_"](t)})}),this.on(this.tech_,"loadstart",this.handleTechLoadStart_),this.on(this.tech_,"sourceset",this.handleTechSourceset_),this.on(this.tech_,"waiting",this.handleTechWaiting_),this.on(this.tech_,"ended",this.handleTechEnded_),this.on(this.tech_,"seeking",this.handleTechSeeking_),this.on(this.tech_,"play",this.handleTechPlay_),this.on(this.tech_,"firstplay",this.handleTechFirstPlay_),this.on(this.tech_,"pause",this.handleTechPause_),this.on(this.tech_,"durationchange",this.handleTechDurationChange_),this.on(this.tech_,"fullscreenchange",this.handleTechFullscreenChange_),this.on(this.tech_,"error",this.handleTechError_),this.on(this.tech_,"loadedmetadata",this.updateStyleEl_),this.on(this.tech_,"posterchange",this.handleTechPosterChange_),this.on(this.tech_,"textdata",this.handleTechTextData_),this.on(this.tech_,"ratechange",this.handleTechRateChange_),this.usingNativeControls(this.techGet_("controls")),this.controls()&&!this.usingNativeControls()&&this.addTechControlsListeners_(),this.tech_.el().parentNode===this.el()||"Html5"===n&&this.tag||M(this.tech_.el(),this.el()),this.tag&&(this.tag.player=null,this.tag=null)},h.prototype.unloadTech_=function(){var i=this;ji.names.forEach(function(t){var e=ji[t];i[e.privateName]=i[e.getterName]()}),this.textTracksJson_=Re(this.tech_),this.isReady_=!1,this.tech_.dispose(),this.tech_=!1,this.isPosterFromTech_&&(this.poster_="",this.trigger("posterchange")),this.isPosterFromTech_=!1},h.prototype.tech=function(t){return void 0===t&&f.warn(m(fa)),this.tech_},h.prototype.addTechControlsListeners_=function(){this.removeTechControlsListeners_(),this.on(this.tech_,"mousedown",this.handleTechClick_),this.on(this.tech_,"dblclick",this.handleTechDoubleClick_),this.on(this.tech_,"touchstart",this.handleTechTouchStart_),this.on(this.tech_,"touchmove",this.handleTechTouchMove_),this.on(this.tech_,"touchend",this.handleTechTouchEnd_),this.on(this.tech_,"tap",this.handleTechTap_)},h.prototype.removeTechControlsListeners_=function(){this.off(this.tech_,"tap",this.handleTechTap_),this.off(this.tech_,"touchstart",this.handleTechTouchStart_),this.off(this.tech_,"touchmove",this.handleTechTouchMove_),this.off(this.tech_,"touchend",this.handleTechTouchEnd_),this.off(this.tech_,"mousedown",this.handleTechClick_),this.off(this.tech_,"dblclick",this.handleTechDoubleClick_)},h.prototype.handleTechReady_=function(){this.triggerReady(),this.cache_.volume&&this.techCall_("setVolume",this.cache_.volume),this.handleTechPosterChange_(),this.handleTechDurationChange_()},h.prototype.handleTechLoadStart_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-seeking"),this.error(null),this.paused()?(this.hasStarted(!1),this.trigger("loadstart")):(this.trigger("loadstart"),this.trigger("firstplay")),this.manualAutoplay_(this.autoplay())},h.prototype.manualAutoplay_=function(e){var i=this;if(this.tech_&&"string"==typeof e){var t=function(){var e=i.muted();i.muted(!0);var t=i.play();if(t&&t.then&&t.catch)return t.catch(function(t){i.muted(e)})},n=void 0;if("any"===e?(n=this.play())&&n.then&&n.catch&&n.catch(function(){return t()}):n="muted"===e?t():this.play(),n&&n.then&&n.catch)return n.then(function(){i.trigger({type:"autoplay-success",autoplay:e})}).catch(function(t){i.trigger({type:"autoplay-failure",autoplay:e})})}},h.prototype.updateSourceCaches_=function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:"",e=t,i="";if("string"!=typeof e&&(e=t.src,i=t.type),!/^blob:/.test(e)){this.cache_.source=this.cache_.source||{},this.cache_.sources=this.cache_.sources||[],e&&!i&&(i=function(t,e){if(!e)return"";if(t.cache_.source.src===e&&t.cache_.source.type)return t.cache_.source.type;var i=t.cache_.sources.filter(function(t){return t.src===e});if(i.length)return i[0].type;for(var n=t.$$("source"),r=0;r<n.length;r++){var a=n[r];if(a.type&&a.src&&a.src===e)return a.type}return In(e)}(this,e)),this.cache_.source=Gt({},t,{src:e,type:i});for(var n=this.cache_.sources.filter(function(t){return t.src&&t.src===e}),r=[],a=this.$$("source"),s=[],o=0;o<a.length;o++){var u=H(a[o]);r.push(u),u.src&&u.src===e&&s.push(u.src)}s.length&&!n.length?this.cache_.sources=r:n.length||(this.cache_.sources=[this.cache_.source]),this.cache_.src=e}},h.prototype.handleTechSourceset_=function(t){var i=this;if(!this.changingSrc_&&(this.updateSourceCaches_(t.src),!t.src)){this.tech_.one(["sourceset","loadstart"],function t(e){"sourceset"!==e.type&&i.updateSourceCaches_(i.techGet_("currentSrc")),i.tech_.off(["sourceset","loadstart"],t)})}this.trigger({src:t.src,type:"sourceset"})},h.prototype.hasStarted=function(t){if(void 0===t)return this.hasStarted_;t!==this.hasStarted_&&(this.hasStarted_=t,this.hasStarted_?(this.addClass("vjs-has-started"),this.trigger("firstplay")):this.removeClass("vjs-has-started"))},h.prototype.handleTechPlay_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.hasStarted(!0),this.trigger("play")},h.prototype.handleTechRateChange_=function(){0<this.tech_.playbackRate()&&0===this.cache_.lastPlaybackRate&&(this.queuedCallbacks_.forEach(function(t){return t.callback(t.event)}),this.queuedCallbacks_=[]),this.cache_.lastPlaybackRate=this.tech_.playbackRate(),this.trigger("ratechange")},h.prototype.handleTechWaiting_=function(){var t=this;this.addClass("vjs-waiting"),this.trigger("waiting"),this.one("timeupdate",function(){return t.removeClass("vjs-waiting")})},h.prototype.handleTechCanPlay_=function(){this.removeClass("vjs-waiting"),this.trigger("canplay")},h.prototype.handleTechCanPlayThrough_=function(){this.removeClass("vjs-waiting"),this.trigger("canplaythrough")},h.prototype.handleTechPlaying_=function(){this.removeClass("vjs-waiting"),this.trigger("playing")},h.prototype.handleTechSeeking_=function(){this.addClass("vjs-seeking"),this.trigger("seeking")},h.prototype.handleTechSeeked_=function(){this.removeClass("vjs-seeking"),this.trigger("seeked")},h.prototype.handleTechFirstPlay_=function(){this.options_.starttime&&(f.warn("Passing the `starttime` option to the player will be deprecated in 6.0"),this.currentTime(this.options_.starttime)),this.addClass("vjs-has-started"),this.trigger("firstplay")},h.prototype.handleTechPause_=function(){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.trigger("pause")},h.prototype.handleTechEnded_=function(){this.addClass("vjs-ended"),this.options_.loop?(this.currentTime(0),this.play()):this.paused()||this.pause(),this.trigger("ended")},h.prototype.handleTechDurationChange_=function(){this.duration(this.techGet_("duration"))},h.prototype.handleTechClick_=function(t){it(t)&&this.controls_&&(this.paused()?Ie(this.play()):this.pause())},h.prototype.handleTechDoubleClick_=function(e){this.controls_&&(Array.prototype.some.call(this.$$(".vjs-control-bar, .vjs-modal-dialog"),function(t){return t.contains(e.target)})||(this.isFullscreen()?this.exitFullscreen():this.requestFullscreen()))},h.prototype.handleTechTap_=function(){this.userActive(!this.userActive())},h.prototype.handleTechTouchStart_=function(){this.userWasActive=this.userActive()},h.prototype.handleTechTouchMove_=function(){this.userWasActive&&this.reportUserActivity()},h.prototype.handleTechTouchEnd_=function(t){t.preventDefault()},h.prototype.handleFullscreenChange_=function(){this.isFullscreen()?this.addClass("vjs-fullscreen"):this.removeClass("vjs-fullscreen")},h.prototype.handleStageClick_=function(){this.reportUserActivity()},h.prototype.handleTechFullscreenChange_=function(t,e){e&&this.isFullscreen(e.isFullscreen),this.trigger("fullscreenchange")},h.prototype.handleTechError_=function(){var t=this.tech_.error();this.error(t)},h.prototype.handleTechTextData_=function(){var t=null;1<arguments.length&&(t=arguments[1]),this.trigger("textdata",t)},h.prototype.getCache=function(){return this.cache_},h.prototype.techCall_=function(r,a){this.ready(function(){if(r in On)return t=this.middleware_,e=this.tech_,n=a,e[i=r](t.reduce(Un(i),n));if(r in Pn)return An(this.middleware_,this.tech_,r,a);var t,e,i,n;try{this.tech_&&this.tech_[r](a)}catch(t){throw f(t),t}},!0)},h.prototype.techGet_=function(e){if(this.tech_&&this.tech_.isReady_){if(e in Ln)return t=this.middleware_,i=this.tech_,n=e,t.reduceRight(Un(n),i[n]());if(e in Pn)return An(this.middleware_,this.tech_,e);var t,i,n;try{return this.tech_[e]()}catch(t){if(void 0===this.tech_[e])throw f("Video.js: "+e+" method not defined for "+this.techName_+" playback technology.",t),t;if("TypeError"===t.name)throw f("Video.js: "+e+" unavailable on "+this.techName_+" playback technology element.",t),this.tech_.isReady_=!1,t;throw f(t),t}}},h.prototype.play=function(){var e=this,t=this.options_.Promise||g.Promise;return t?new t(function(t){e.play_(t)}):this.play_()},h.prototype.play_=function(){var t=this,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:Ie;if(this.playOnLoadstart_&&this.off("loadstart",this.playOnLoadstart_),this.isReady_){if(!this.changingSrc_&&(this.src()||this.currentSrc()))return void e(this.techGet_("play"));this.playOnLoadstart_=function(){t.playOnLoadstart_=null,e(t.play())},this.one("loadstart",this.playOnLoadstart_)}else{if(this.playWaitingForReady_)return;this.playWaitingForReady_=!0,this.ready(function(){t.playWaitingForReady_=!1,e(t.play())})}},h.prototype.pause=function(){this.techCall_("pause")},h.prototype.paused=function(){return!1!==this.techGet_("paused")},h.prototype.played=function(){return this.techGet_("played")||be(0,0)},h.prototype.scrubbing=function(t){if("undefined"==typeof t)return this.scrubbing_;this.scrubbing_=!!t,t?this.addClass("vjs-scrubbing"):this.removeClass("vjs-scrubbing")},h.prototype.currentTime=function(t){return"undefined"!=typeof t?(t<0&&(t=0),void this.techCall_("setCurrentTime",t)):(this.cache_.currentTime=this.techGet_("currentTime")||0,this.cache_.currentTime)},h.prototype.duration=function(t){if(void 0===t)return void 0!==this.cache_.duration?this.cache_.duration:NaN;(t=parseFloat(t))<0&&(t=1/0),t!==this.cache_.duration&&((this.cache_.duration=t)===1/0?this.addClass("vjs-live"):this.removeClass("vjs-live"),this.trigger("durationchange"))},h.prototype.remainingTime=function(){return this.duration()-this.currentTime()},h.prototype.remainingTimeDisplay=function(){return Math.floor(this.duration())-Math.floor(this.currentTime())},h.prototype.buffered=function(){var t=this.techGet_("buffered");return t&&t.length||(t=be(0,0)),t},h.prototype.bufferedPercent=function(){return Te(this.buffered(),this.duration())},h.prototype.bufferedEnd=function(){var t=this.buffered(),e=this.duration(),i=t.end(t.length-1);return e<i&&(i=e),i},h.prototype.volume=function(t){var e=void 0;return void 0!==t?(e=Math.max(0,Math.min(1,parseFloat(t))),this.cache_.volume=e,this.techCall_("setVolume",e),void(0<e&&this.lastVolume_(e))):(e=parseFloat(this.techGet_("volume")),isNaN(e)?1:e)},h.prototype.muted=function(t){if(void 0===t)return this.techGet_("muted")||!1;this.techCall_("setMuted",t)},h.prototype.defaultMuted=function(t){return void 0!==t?this.techCall_("setDefaultMuted",t):this.techGet_("defaultMuted")||!1},h.prototype.lastVolume_=function(t){if(void 0===t||0===t)return this.cache_.lastVolume;this.cache_.lastVolume=t},h.prototype.supportsFullScreen=function(){return this.techGet_("supportsFullScreen")||!1},h.prototype.isFullscreen=function(t){if(void 0===t)return!!this.isFullscreen_;this.isFullscreen_=!!t},h.prototype.requestFullscreen=function(){var i=Se;this.isFullscreen(!0),i.requestFullscreen?(vt(p,i.fullscreenchange,Ot(this,function t(e){this.isFullscreen(p[i.fullscreenElement]),!1===this.isFullscreen()&&_t(p,i.fullscreenchange,t),this.trigger("fullscreenchange")})),this.el_[i.requestFullscreen]()):this.tech_.supportsFullScreen()?this.techCall_("enterFullScreen"):(this.enterFullWindow(),this.trigger("fullscreenchange"))},h.prototype.exitFullscreen=function(){var t=Se;this.isFullscreen(!1),t.requestFullscreen?p[t.exitFullscreen]():this.tech_.supportsFullScreen()?this.techCall_("exitFullScreen"):(this.exitFullWindow(),this.trigger("fullscreenchange"))},h.prototype.enterFullWindow=function(){this.isFullWindow=!0,this.docOrigOverflow=p.documentElement.style.overflow,vt(p,"keydown",Ot(this,this.fullWindowOnEscKey)),p.documentElement.style.overflow="hidden",N(p.body,"vjs-full-window"),this.trigger("enterFullWindow")},h.prototype.fullWindowOnEscKey=function(t){27===t.keyCode&&(!0===this.isFullscreen()?this.exitFullscreen():this.exitFullWindow())},h.prototype.exitFullWindow=function(){this.isFullWindow=!1,_t(p,"keydown",this.fullWindowOnEscKey),p.documentElement.style.overflow=this.docOrigOverflow,j(p.body,"vjs-full-window"),this.trigger("exitFullWindow")},h.prototype.canPlayType=function(t){for(var e=void 0,i=0,n=this.options_.techOrder;i<n.length;i++){var r=n[i],a=Sn.getTech(r);if(a||(a=Xt.getComponent(r)),a){if(a.isSupported()&&(e=a.canPlayType(t)))return e}else f.error('The "'+r+'" tech is undefined. Skipped browser support check for that tech.')}return""},h.prototype.selectSource=function(t){var i,n=this,e=this.options_.techOrder.map(function(t){return[t,Sn.getTech(t)]}).filter(function(t){var e=t[0],i=t[1];return i?i.isSupported():(f.error('The "'+e+'" tech is undefined. 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Uint8Array(i))},Ns=function(t,e){return"audio"===t.type?eo(t,e):io(t,e)};var bo={ftyp:Ts=function(){return vs(js.ftyp,Fs,Vs,Fs,Hs)},mdat:function(t){return vs(js.mdat,t)},moof:Cs,moov:ws,initSegment:function(t){var e,i=Ts(),n=ws(t);return(e=new Uint8Array(i.byteLength+n.byteLength)).set(i),e.set(n,i.byteLength),e}},To=bo.ftyp,So=bo.mdat,ko=bo.moof,Co=bo.moov,wo=bo.initSegment,Eo=Object.freeze({default:bo,__moduleExports:bo,ftyp:To,mdat:So,moof:ko,moov:Co,initSegment:wo}),Ao=function(){this.init=function(){var a={};this.on=function(t,e){a[t]||(a[t]=[]),a[t]=a[t].concat(e)},this.off=function(t,e){var i;return!!a[t]&&(i=a[t].indexOf(e),a[t]=a[t].slice(),a[t].splice(i,1),-1<i)},this.trigger=function(t){var e,i,n,r;if(e=a[t])if(2===arguments.length)for(n=e.length,i=0;i<n;++i)e[i].call(this,arguments[1]);else{for(r=[],i=arguments.length,i=1;i<arguments.length;++i)r.push(arguments[i]);for(n=e.length,i=0;i<n;++i)e[i].apply(this,r)}},this.dispose=function(){a={}}}};Ao.prototype.pipe=function(e){return this.on("data",function(t){e.push(t)}),this.on("done",function(t){e.flush(t)}),e},Ao.prototype.push=function(t){this.trigger("data",t)},Ao.prototype.flush=function(t){this.trigger("done",t)};var Lo=Ao,Oo=Object.freeze({default:Lo,__moduleExports:Lo}),Po={groupNalsIntoFrames:function(t){var e,i,n=[],r=[];for(e=n.byteLength=0;e<t.length;e++)"access_unit_delimiter_rbsp"===(i=t[e]).nalUnitType?(n.length&&(n.duration=i.dts-n.dts,r.push(n)),(n=[i]).byteLength=i.data.byteLength,n.pts=i.pts,n.dts=i.dts):("slice_layer_without_partitioning_rbsp_idr"===i.nalUnitType&&(n.keyFrame=!0),n.duration=i.dts-n.dts,n.byteLength+=i.data.byteLength,n.push(i));return r.length&&(!n.duration||n.duration<=0)&&(n.duration=r[r.length-1].duration),r.push(n),r},groupFramesIntoGops:function(t){var e,i,n=[],r=[];for(n.byteLength=0,n.nalCount=0,n.duration=0,n.pts=t[0].pts,n.dts=t[0].dts,r.byteLength=0,r.nalCount=0,r.duration=0,r.pts=t[0].pts,r.dts=t[0].dts,e=0;e<t.length;e++)(i=t[e]).keyFrame?(n.length&&(r.push(n),r.byteLength+=n.byteLength,r.nalCount+=n.nalCount,r.duration+=n.duration),(n=[i]).nalCount=i.length,n.byteLength=i.byteLength,n.pts=i.pts,n.dts=i.dts,n.duration=i.duration):(n.duration+=i.duration,n.nalCount+=i.length,n.byteLength+=i.byteLength,n.push(i));return r.length&&n.duration<=0&&(n.duration=r[r.length-1].duration),r.byteLength+=n.byteLength,r.nalCount+=n.nalCount,r.duration+=n.duration,r.push(n),r},extendFirstKeyFrame:function(t){var e;return!t[0][0].keyFrame&&1<t.length&&(e=t.shift(),t.byteLength-=e.byteLength,t.nalCount-=e.nalCount,t[0][0].dts=e.dts,t[0][0].pts=e.pts,t[0][0].duration+=e.duration),t},generateSampleTable:function(t,e){var i,n,r,a,s,o,u,l=e||0,c=[];for(i=0;i<t.length;i++)for(a=t[i],n=0;n<a.length;n++)s=a[n],o=s,u=void 0,(u={size:0,flags:{isLeading:0,dependsOn:1,isDependedOn:0,hasRedundancy:0,degradationPriority:0,isNonSyncSample:1}}).dataOffset=l,u.compositionTimeOffset=o.pts-o.dts,u.duration=o.duration,u.size=4*o.length,u.size+=o.byteLength,o.keyFrame&&(u.flags.dependsOn=2,u.flags.isNonSyncSample=0),l+=(r=u).size,c.push(r);return c},concatenateNalData:function(t){var e,i,n,r,a,s,o=0,u=t.byteLength,l=t.nalCount,c=new Uint8Array(u+4*l),h=new DataView(c.buffer);for(e=0;e<t.length;e++)for(r=t[e],i=0;i<r.length;i++)for(a=r[i],n=0;n<a.length;n++)s=a[n],h.setUint32(o,s.data.byteLength),o+=4,c.set(s.data,o),o+=s.data.byteLength;return c}},Uo=Po.groupNalsIntoFrames,xo=Po.groupFramesIntoGops,Io=Po.extendFirstKeyFrame,Do=Po.generateSampleTable,Ro=Po.concatenateNalData,Mo=Object.freeze({default:Po,__moduleExports:Po,groupNalsIntoFrames:Uo,groupFramesIntoGops:xo,extendFirstKeyFrame:Io,generateSampleTable:Do,concatenateNalData:Ro}),Bo={clearDtsInfo:function(t){delete t.minSegmentDts,delete t.maxSegmentDts,delete t.minSegmentPts,delete t.maxSegmentPts},calculateTrackBaseMediaDecodeTime:function(t,e){var i,n=t.minSegmentDts;return e||(n-=t.timelineStartInfo.dts),i=t.timelineStartInfo.baseMediaDecodeTime,i+=n,i=Math.max(0,i),"audio"===t.type&&(i*=t.samplerate/9e4,i=Math.floor(i)),i},collectDtsInfo:function(t,e){"number"==typeof e.pts&&(void 0===t.timelineStartInfo.pts&&(t.timelineStartInfo.pts=e.pts),void 0===t.minSegmentPts?t.minSegmentPts=e.pts:t.minSegmentPts=Math.min(t.minSegmentPts,e.pts),void 0===t.maxSegmentPts?t.maxSegmentPts=e.pts:t.maxSegmentPts=Math.max(t.maxSegmentPts,e.pts)),"number"==typeof e.dts&&(void 0===t.timelineStartInfo.dts&&(t.timelineStartInfo.dts=e.dts),void 0===t.minSegmentDts?t.minSegmentDts=e.dts:t.minSegmentDts=Math.min(t.minSegmentDts,e.dts),void 0===t.maxSegmentDts?t.maxSegmentDts=e.dts:t.maxSegmentDts=Math.max(t.maxSegmentDts,e.dts))}},No=Bo.clearDtsInfo,jo=Bo.calculateTrackBaseMediaDecodeTime,Fo=Bo.collectDtsInfo,Vo=Object.freeze({default:Bo,__moduleExports:Bo,clearDtsInfo:No,calculateTrackBaseMediaDecodeTime:jo,collectDtsInfo:Fo}),Ho={parseSei:function(t){for(var e=0,i={payloadType:-1,payloadSize:0},n=0,r=0;e<t.byteLength&&128!==t[e];){for(;255===t[e];)n+=255,e++;for(n+=t[e++];255===t[e];)r+=255,e++;if(r+=t[e++],!i.payload&&4===n){i.payloadType=n,i.payloadSize=r,i.payload=t.subarray(e,e+r);break}e+=r,r=n=0}return i},parseUserData:function(t){return 181!==t.payload[0]?null:49!=(t.payload[1]<<8|t.payload[2])?null:"GA94"!==String.fromCharCode(t.payload[3],t.payload[4],t.payload[5],t.payload[6])?null:3!==t.payload[7]?null:t.payload.subarray(8,t.payload.length-1)},parseCaptionPackets:function(t,e){var i,n,r,a,s=[];if(!(64&e[0]))return s;for(n=31&e[0],i=0;i<n;i++)a={type:3&e[2+(r=3*i)],pts:t},4&e[r+2]&&(a.ccData=e[r+3]<<8|e[r+4],s.push(a));return s},discardEmulationPreventionBytes:function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},USER_DATA_REGISTERED_ITU_T_T35:4},zo=Ho.parseSei,qo=Ho.parseUserData,Wo=Ho.parseCaptionPackets,Go=Ho.discardEmulationPreventionBytes,Xo=Ho.USER_DATA_REGISTERED_ITU_T_T35,Yo=Object.freeze({default:Ho,__moduleExports:Ho,parseSei:zo,parseUserData:qo,parseCaptionPackets:Wo,discardEmulationPreventionBytes:Go,USER_DATA_REGISTERED_ITU_T_T35:Xo}),$o=Oo&&Lo||Oo,Ko=Yo&&Ho||Yo,Jo=function t(){t.prototype.init.call(this),this.captionPackets_=[],this.ccStreams_=[new iu(0,0),new iu(0,1),new iu(1,0),new iu(1,1)],this.reset(),this.ccStreams_.forEach(function(t){t.on("data",this.trigger.bind(this,"data")),t.on("done",this.trigger.bind(this,"done"))},this)};(Jo.prototype=new $o).push=function(t){var e,i,n;if("sei_rbsp"===t.nalUnitType&&(e=Ko.parseSei(t.escapedRBSP)).payloadType===Ko.USER_DATA_REGISTERED_ITU_T_T35&&(i=Ko.parseUserData(e)))if(t.dts<this.latestDts_)this.ignoreNextEqualDts_=!0;else{if(t.dts===this.latestDts_&&this.ignoreNextEqualDts_)return this.numSameDts_--,void(this.numSameDts_||(this.ignoreNextEqualDts_=!1));n=Ko.parseCaptionPackets(t.pts,i),this.captionPackets_=this.captionPackets_.concat(n),this.latestDts_!==t.dts&&(this.numSameDts_=0),this.numSameDts_++,this.latestDts_=t.dts}},Jo.prototype.flush=function(){this.captionPackets_.length?(this.captionPackets_.forEach(function(t,e){t.presortIndex=e}),this.captionPackets_.sort(function(t,e){return t.pts===e.pts?t.presortIndex-e.presortIndex:t.pts-e.pts}),this.captionPackets_.forEach(function(t){t.type<2&&this.dispatchCea608Packet(t)},this),this.captionPackets_.length=0,this.ccStreams_.forEach(function(t){t.flush()},this)):this.ccStreams_.forEach(function(t){t.flush()},this)},Jo.prototype.reset=function(){this.latestDts_=null,this.ignoreNextEqualDts_=!1,this.numSameDts_=0,this.activeCea608Channel_=[null,null],this.ccStreams_.forEach(function(t){t.reset()})},Jo.prototype.dispatchCea608Packet=function(t){this.setsChannel1Active(t)?this.activeCea608Channel_[t.type]=0:this.setsChannel2Active(t)&&(this.activeCea608Channel_[t.type]=1),null!==this.activeCea608Channel_[t.type]&&this.ccStreams_[(t.type<<1)+this.activeCea608Channel_[t.type]].push(t)},Jo.prototype.setsChannel1Active=function(t){return 4096==(30720&t.ccData)},Jo.prototype.setsChannel2Active=function(t){return 6144==(30720&t.ccData)};var Qo={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,304:174,305:176,306:189,307:191,308:8482,309:162,310:163,311:9834,312:224,313:160,314:232,315:226,316:234,317:238,318:244,319:251,544:193,545:201,546:211,547:218,548:220,549:252,550:8216,551:161,552:42,553:39,554:8212,555:169,556:8480,557:8226,558:8220,559:8221,560:192,561:194,562:199,563:200,564:202,565:203,566:235,567:206,568:207,569:239,570:212,571:217,572:249,573:219,574:171,575:187,800:195,801:227,802:205,803:204,804:236,805:210,806:242,807:213,808:245,809:123,810:125,811:92,812:94,813:95,814:124,815:126,816:196,817:228,818:214,819:246,820:223,821:165,822:164,823:9474,824:197,825:229,826:216,827:248,828:9484,829:9488,830:9492,831:9496},Zo=function(t){return null===t?"":(t=Qo[t]||t,String.fromCharCode(t))},tu=[4352,4384,4608,4640,5376,5408,5632,5664,5888,5920,4096,4864,4896,5120,5152],eu=function(){for(var t=[],e=15;e--;)t.push("");return t},iu=function t(e,i){t.prototype.init.call(this),this.field_=e||0,this.dataChannel_=i||0,this.name_="CC"+(1+(this.field_<<1|this.dataChannel_)),this.setConstants(),this.reset(),this.push=function(t){var e,i,n,r,a;if((e=32639&t.ccData)!==this.lastControlCode_){if(4096==(61440&e)?this.lastControlCode_=e:e!==this.PADDING_&&(this.lastControlCode_=null),n=e>>>8,r=255&e,e!==this.PADDING_)if(e===this.RESUME_CAPTION_LOADING_)this.mode_="popOn";else if(e===this.END_OF_CAPTION_)this.mode_="popOn",this.clearFormatting(t.pts),this.flushDisplayed(t.pts),i=this.displayed_,this.displayed_=this.nonDisplayed_,this.nonDisplayed_=i,this.startPts_=t.pts;else if(e===this.ROLL_UP_2_ROWS_)this.rollUpRows_=2,this.setRollUp(t.pts);else if(e===this.ROLL_UP_3_ROWS_)this.rollUpRows_=3,this.setRollUp(t.pts);else if(e===this.ROLL_UP_4_ROWS_)this.rollUpRows_=4,this.setRollUp(t.pts);else if(e===this.CARRIAGE_RETURN_)this.clearFormatting(t.pts),this.flushDisplayed(t.pts),this.shiftRowsUp_(),this.startPts_=t.pts;else if(e===this.BACKSPACE_)"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1);else if(e===this.ERASE_DISPLAYED_MEMORY_)this.flushDisplayed(t.pts),this.displayed_=eu();else if(e===this.ERASE_NON_DISPLAYED_MEMORY_)this.nonDisplayed_=eu();else if(e===this.RESUME_DIRECT_CAPTIONING_)"paintOn"!==this.mode_&&(this.flushDisplayed(t.pts),this.displayed_=eu()),this.mode_="paintOn",this.startPts_=t.pts;else if(this.isSpecialCharacter(n,r))a=Zo((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isExtCharacter(n,r))"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1),a=Zo((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isMidRowCode(n,r))this.clearFormatting(t.pts),this[this.mode_](t.pts," "),this.column_++,14==(14&r)&&this.addFormatting(t.pts,["i"]),1==(1&r)&&this.addFormatting(t.pts,["u"]);else if(this.isOffsetControlCode(n,r))this.column_+=3&r;else if(this.isPAC(n,r)){var s=tu.indexOf(7968&e);"rollUp"===this.mode_&&this.setRollUp(t.pts,s),s!==this.row_&&(this.clearFormatting(t.pts),this.row_=s),1&r&&-1===this.formatting_.indexOf("u")&&this.addFormatting(t.pts,["u"]),16==(16&e)&&(this.column_=4*((14&e)>>1)),this.isColorPAC(r)&&14==(14&r)&&this.addFormatting(t.pts,["i"])}else this.isNormalChar(n)&&(0===r&&(r=null),a=Zo(n),a+=Zo(r),this[this.mode_](t.pts,a),this.column_+=a.length)}else this.lastControlCode_=null}};iu.prototype=new $o,iu.prototype.flushDisplayed=function(t){var e=this.displayed_.map(function(t){return t.trim()}).join("\n").replace(/^\n+|\n+$/g,"");e.length&&this.trigger("data",{startPts:this.startPts_,endPts:t,text:e,stream:this.name_})},iu.prototype.reset=function(){this.mode_="popOn",this.topRow_=0,this.startPts_=0,this.displayed_=eu(),this.nonDisplayed_=eu(),this.lastControlCode_=null,this.column_=0,this.row_=14,this.rollUpRows_=2,this.formatting_=[]},iu.prototype.setConstants=function(){0===this.dataChannel_?(this.BASE_=16,this.EXT_=17,this.CONTROL_=(20|this.field_)<<8,this.OFFSET_=23):1===this.dataChannel_&&(this.BASE_=24,this.EXT_=25,this.CONTROL_=(28|this.field_)<<8,this.OFFSET_=31),this.PADDING_=0,this.RESUME_CAPTION_LOADING_=32|this.CONTROL_,this.END_OF_CAPTION_=47|this.CONTROL_,this.ROLL_UP_2_ROWS_=37|this.CONTROL_,this.ROLL_UP_3_ROWS_=38|this.CONTROL_,this.ROLL_UP_4_ROWS_=39|this.CONTROL_,this.CARRIAGE_RETURN_=45|this.CONTROL_,this.RESUME_DIRECT_CAPTIONING_=41|this.CONTROL_,this.BACKSPACE_=33|this.CONTROL_,this.ERASE_DISPLAYED_MEMORY_=44|this.CONTROL_,this.ERASE_NON_DISPLAYED_MEMORY_=46|this.CONTROL_},iu.prototype.isSpecialCharacter=function(t,e){return t===this.EXT_&&48<=e&&e<=63},iu.prototype.isExtCharacter=function(t,e){return(t===this.EXT_+1||t===this.EXT_+2)&&32<=e&&e<=63},iu.prototype.isMidRowCode=function(t,e){return t===this.EXT_&&32<=e&&e<=47},iu.prototype.isOffsetControlCode=function(t,e){return t===this.OFFSET_&&33<=e&&e<=35},iu.prototype.isPAC=function(t,e){return t>=this.BASE_&&t<this.BASE_+8&&64<=e&&e<=127},iu.prototype.isColorPAC=function(t){return 64<=t&&t<=79||96<=t&&t<=127},iu.prototype.isNormalChar=function(t){return 32<=t&&t<=127},iu.prototype.setRollUp=function(t,e){if("rollUp"!==this.mode_&&(this.row_=14,this.mode_="rollUp",this.flushDisplayed(t),this.nonDisplayed_=eu(),this.displayed_=eu()),void 0!==e&&e!==this.row_)for(var i=0;i<this.rollUpRows_;i++)this.displayed_[e-i]=this.displayed_[this.row_-i],this.displayed_[this.row_-i]="";void 0===e&&(e=this.row_),this.topRow_=e-this.rollUpRows_+1},iu.prototype.addFormatting=function(t,e){this.formatting_=this.formatting_.concat(e);var i=e.reduce(function(t,e){return t+"<"+e+">"},"");this[this.mode_](t,i)},iu.prototype.clearFormatting=function(t){if(this.formatting_.length){var e=this.formatting_.reverse().reduce(function(t,e){return t+"</"+e+">"},"");this.formatting_=[],this[this.mode_](t,e)}},iu.prototype.popOn=function(t,e){var i=this.nonDisplayed_[this.row_];i+=e,this.nonDisplayed_[this.row_]=i},iu.prototype.rollUp=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i},iu.prototype.shiftRowsUp_=function(){var t;for(t=0;t<this.topRow_;t++)this.displayed_[t]="";for(t=this.row_+1;t<15;t++)this.displayed_[t]="";for(t=this.topRow_;t<this.row_;t++)this.displayed_[t]=this.displayed_[t+1];this.displayed_[this.row_]=""},iu.prototype.paintOn=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i};var nu={CaptionStream:Jo,Cea608Stream:iu},ru=nu.CaptionStream,au=nu.Cea608Stream,su=Object.freeze({default:nu,__moduleExports:nu,CaptionStream:ru,Cea608Stream:au}),ou={H264_STREAM_TYPE:27,ADTS_STREAM_TYPE:15,METADATA_STREAM_TYPE:21},uu=ou.H264_STREAM_TYPE,lu=ou.ADTS_STREAM_TYPE,cu=ou.METADATA_STREAM_TYPE,hu=Object.freeze({default:ou,__moduleExports:ou,H264_STREAM_TYPE:uu,ADTS_STREAM_TYPE:lu,METADATA_STREAM_TYPE:cu}),du=function(t,e){var i=1;for(e<t&&(i=-1);4294967296<Math.abs(e-t);)t+=8589934592*i;return t},pu=function t(e){var i,n;t.prototype.init.call(this),this.type_=e,this.push=function(t){t.type===this.type_&&(void 0===n&&(n=t.dts),t.dts=du(t.dts,n),t.pts=du(t.pts,n),i=t.dts,this.trigger("data",t))},this.flush=function(){n=i,this.trigger("done")},this.discontinuity=function(){i=n=void 0}};pu.prototype=new $o;var fu,mu={TimestampRolloverStream:pu,handleRollover:du},gu=mu.TimestampRolloverStream,yu=mu.handleRollover,vu=Object.freeze({default:mu,__moduleExports:mu,TimestampRolloverStream:gu,handleRollover:yu}),_u=hu&&ou||hu,bu=function(t,e,i){var n,r="";for(n=e;n<i;n++)r+="%"+("00"+t[n].toString(16)).slice(-2);return r},Tu=function(t,e,i){return decodeURIComponent(bu(t,e,i))},Su=function(t){return t[0]<<21|t[1]<<14|t[2]<<7|t[3]},ku={TXXX:function(t){var e;if(3===t.data[0]){for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=Tu(t.data,1,e),t.value=Tu(t.data,e+1,t.data.length).replace(/\0*$/,"");break}t.data=t.value}},WXXX:function(t){var e;if(3===t.data[0])for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=Tu(t.data,1,e),t.url=Tu(t.data,e+1,t.data.length);break}},PRIV:function(t){var e,i;for(e=0;e<t.data.length;e++)if(0===t.data[e]){t.owner=(i=t.data,unescape(bu(i,0,e)));break}t.privateData=t.data.subarray(e+1),t.data=t.privateData}};(fu=function(t){var e,u={debug:!(!t||!t.debug),descriptor:t&&t.descriptor},l=0,c=[],h=0;if(fu.prototype.init.call(this),this.dispatchType=_u.METADATA_STREAM_TYPE.toString(16),u.descriptor)for(e=0;e<u.descriptor.length;e++)this.dispatchType+=("00"+u.descriptor[e].toString(16)).slice(-2);this.push=function(t){var e,i,n,r,a;if("timed-metadata"===t.type)if(t.dataAlignmentIndicator&&(h=0,c.length=0),0===c.length&&(t.data.length<10||t.data[0]!=="I".charCodeAt(0)||t.data[1]!=="D".charCodeAt(0)||t.data[2]!=="3".charCodeAt(0)))u.debug;else if(c.push(t),h+=t.data.byteLength,1===c.length&&(l=Su(t.data.subarray(6,10)),l+=10),!(h<l)){for(e={data:new Uint8Array(l),frames:[],pts:c[0].pts,dts:c[0].dts},a=0;a<l;)e.data.set(c[0].data.subarray(0,l-a),a),a+=c[0].data.byteLength,h-=c[0].data.byteLength,c.shift();i=10,64&e.data[5]&&(i+=4,i+=Su(e.data.subarray(10,14)),l-=Su(e.data.subarray(16,20)));do{if((n=Su(e.data.subarray(i+4,i+8)))<1)return;if((r={id:String.fromCharCode(e.data[i],e.data[i+1],e.data[i+2],e.data[i+3]),data:e.data.subarray(i+10,i+n+10)}).key=r.id,ku[r.id]&&(ku[r.id](r),"com.apple.streaming.transportStreamTimestamp"===r.owner)){var s=r.data,o=(1&s[3])<<30|s[4]<<22|s[5]<<14|s[6]<<6|s[7]>>>2;o*=4,o+=3&s[7],r.timeStamp=o,void 0===e.pts&&void 0===e.dts&&(e.pts=r.timeStamp,e.dts=r.timeStamp),this.trigger("timestamp",r)}e.frames.push(r),i+=10,i+=n}while(i<l);this.trigger("data",e)}}}).prototype=new $o;var Cu,wu,Eu,Au=fu,Lu=Object.freeze({default:Au,__moduleExports:Au}),Ou=su&&nu||su,Pu=vu&&mu||vu,Uu=Lu&&Au||Lu,xu=Pu.TimestampRolloverStream;(Cu=function(){var r=new Uint8Array(188),a=0;Cu.prototype.init.call(this),this.push=function(t){var e,i=0,n=188;for(a?((e=new Uint8Array(t.byteLength+a)).set(r.subarray(0,a)),e.set(t,a),a=0):e=t;n<e.byteLength;)71!==e[i]||71!==e[n]?(i++,n++):(this.trigger("data",e.subarray(i,n)),i+=188,n+=188);i<e.byteLength&&(r.set(e.subarray(i),0),a=e.byteLength-i)},this.flush=function(){188===a&&71===r[0]&&(this.trigger("data",r),a=0),this.trigger("done")}}).prototype=new $o,(wu=function(){var n,r,a,s;wu.prototype.init.call(this),(s=this).packetsWaitingForPmt=[],this.programMapTable=void 0,n=function(t,e){var i=0;e.payloadUnitStartIndicator&&(i+=t[i]+1),"pat"===e.type?r(t.subarray(i),e):a(t.subarray(i),e)},r=function(t,e){e.section_number=t[7],e.last_section_number=t[8],s.pmtPid=(31&t[10])<<8|t[11],e.pmtPid=s.pmtPid},a=function(t,e){var i,n;if(1&t[5]){for(s.programMapTable={video:null,audio:null,"timed-metadata":{}},i=3+((15&t[1])<<8|t[2])-4,n=12+((15&t[10])<<8|t[11]);n<i;){var r=t[n],a=(31&t[n+1])<<8|t[n+2];r===_u.H264_STREAM_TYPE&&null===s.programMapTable.video?s.programMapTable.video=a:r===_u.ADTS_STREAM_TYPE&&null===s.programMapTable.audio?s.programMapTable.audio=a:r===_u.METADATA_STREAM_TYPE&&(s.programMapTable["timed-metadata"][a]=r),n+=5+((15&t[n+3])<<8|t[n+4])}e.programMapTable=s.programMapTable}},this.push=function(t){var e={},i=4;if(e.payloadUnitStartIndicator=!!(64&t[1]),e.pid=31&t[1],e.pid<<=8,e.pid|=t[2],1<(48&t[3])>>>4&&(i+=t[i]+1),0===e.pid)e.type="pat",n(t.subarray(i),e),this.trigger("data",e);else if(e.pid===this.pmtPid)for(e.type="pmt",n(t.subarray(i),e),this.trigger("data",e);this.packetsWaitingForPmt.length;)this.processPes_.apply(this,this.packetsWaitingForPmt.shift());else void 0===this.programMapTable?this.packetsWaitingForPmt.push([t,i,e]):this.processPes_(t,i,e)},this.processPes_=function(t,e,i){i.pid===this.programMapTable.video?i.streamType=_u.H264_STREAM_TYPE:i.pid===this.programMapTable.audio?i.streamType=_u.ADTS_STREAM_TYPE:i.streamType=this.programMapTable["timed-metadata"][i.pid],i.type="pes",i.data=t.subarray(e),this.trigger("data",i)}}).prototype=new $o,wu.STREAM_TYPES={h264:27,adts:15},(Eu=function(){var d=this,n={data:[],size:0},r={data:[],size:0},a={data:[],size:0},s=function(t,e,i){var n,r,a=new Uint8Array(t.size),s={type:e},o=0,u=0;if(t.data.length&&!(t.size<9)){for(s.trackId=t.data[0].pid,o=0;o<t.data.length;o++)r=t.data[o],a.set(r.data,u),u+=r.data.byteLength;var l,c,h;l=a,(c=s).packetLength=6+(l[4]<<8|l[5]),c.dataAlignmentIndicator=0!=(4&l[6]),192&(h=l[7])&&(c.pts=(14&l[9])<<27|(255&l[10])<<20|(254&l[11])<<12|(255&l[12])<<5|(254&l[13])>>>3,c.pts*=4,c.pts+=(6&l[13])>>>1,c.dts=c.pts,64&h&&(c.dts=(14&l[14])<<27|(255&l[15])<<20|(254&l[16])<<12|(255&l[17])<<5|(254&l[18])>>>3,c.dts*=4,c.dts+=(6&l[18])>>>1)),c.data=l.subarray(9+l[8]),n="video"===e||s.packetLength<=t.size,(i||n)&&(t.size=0,t.data.length=0),n&&d.trigger("data",s)}};Eu.prototype.init.call(this),this.push=function(i){({pat:function(){},pes:function(){var t,e;switch(i.streamType){case _u.H264_STREAM_TYPE:case _u.H264_STREAM_TYPE:t=n,e="video";break;case _u.ADTS_STREAM_TYPE:t=r,e="audio";break;case _u.METADATA_STREAM_TYPE:t=a,e="timed-metadata";break;default:return}i.payloadUnitStartIndicator&&s(t,e,!0),t.data.push(i),t.size+=i.data.byteLength},pmt:function(){var t={type:"metadata",tracks:[]},e=i.programMapTable;null!==e.video&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.video,codec:"avc",type:"video"}),null!==e.audio&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.audio,codec:"adts",type:"audio"}),d.trigger("data",t)}})[i.type]()},this.flush=function(){s(n,"video"),s(r,"audio"),s(a,"timed-metadata"),this.trigger("done")}}).prototype=new $o;var Iu={PAT_PID:0,MP2T_PACKET_LENGTH:188,TransportPacketStream:Cu,TransportParseStream:wu,ElementaryStream:Eu,TimestampRolloverStream:xu,CaptionStream:Ou.CaptionStream,Cea608Stream:Ou.Cea608Stream,MetadataStream:Uu};for(var Du in _u)_u.hasOwnProperty(Du)&&(Iu[Du]=_u[Du]);var Ru,Mu=Iu,Bu=Object.freeze({default:Mu,__moduleExports:Mu}),Nu=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];(Ru=function(){var l;Ru.prototype.init.call(this),this.push=function(t){var e,i,n,r,a,s,o=0,u=0;if("audio"===t.type)for(l?(r=l,(l=new Uint8Array(r.byteLength+t.data.byteLength)).set(r),l.set(t.data,r.byteLength)):l=t.data;o+5<l.length;)if(255===l[o]&&240==(246&l[o+1])){if(i=2*(1&~l[o+1]),e=(3&l[o+3])<<11|l[o+4]<<3|(224&l[o+5])>>5,s=9e4*(a=1024*(1+(3&l[o+6])))/Nu[(60&l[o+2])>>>2],n=o+e,l.byteLength<n)return;if(this.trigger("data",{pts:t.pts+u*s,dts:t.dts+u*s,sampleCount:a,audioobjecttype:1+(l[o+2]>>>6&3),channelcount:(1&l[o+2])<<2|(192&l[o+3])>>>6,samplerate:Nu[(60&l[o+2])>>>2],samplingfrequencyindex:(60&l[o+2])>>>2,samplesize:16,data:l.subarray(o+7+i,n)}),l.byteLength===n)return void(l=void 0);u++,l=l.subarray(n)}else o++},this.flush=function(){this.trigger("done")}}).prototype=new $o;var ju,Fu,Vu,Hu=Ru,zu=Object.freeze({default:Hu,__moduleExports:Hu}),qu=function(n){var r=n.byteLength,a=0,s=0;this.length=function(){return 8*r},this.bitsAvailable=function(){return 8*r+s},this.loadWord=function(){var t=n.byteLength-r,e=new Uint8Array(4),i=Math.min(4,r);if(0===i)throw new Error("no bytes available");e.set(n.subarray(t,t+i)),a=new DataView(e.buffer).getUint32(0),s=8*i,r-=i},this.skipBits=function(t){var e;t<s||(t-=s,t-=8*(e=Math.floor(t/8)),r-=e,this.loadWord()),a<<=t,s-=t},this.readBits=function(t){var e=Math.min(s,t),i=a>>>32-e;return 0<(s-=e)?a<<=e:0<r&&this.loadWord(),0<(e=t-e)?i<<e|this.readBits(e):i},this.skipLeadingZeros=function(){var t;for(t=0;t<s;++t)if(0!=(a&2147483648>>>t))return a<<=t,s-=t,t;return this.loadWord(),t+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var t=this.skipLeadingZeros();return this.readBits(t+1)-1},this.readExpGolomb=function(){var t=this.readUnsignedExpGolomb();return 1&t?1+t>>>1:-1*(t>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUnsignedByte=function(){return this.readBits(8)},this.loadWord()},Wu=Object.freeze({default:qu,__moduleExports:qu}),Gu=Wu&&qu||Wu;(Fu=function(){var i,n,r=0;Fu.prototype.init.call(this),this.push=function(t){var e;for(n?((e=new Uint8Array(n.byteLength+t.data.byteLength)).set(n),e.set(t.data,n.byteLength),n=e):n=t.data;r<n.byteLength-3;r++)if(1===n[r+2]){i=r+5;break}for(;i<n.byteLength;)switch(n[i]){case 0:if(0!==n[i-1]){i+=2;break}if(0!==n[i-2]){i++;break}for(r+3!==i-2&&this.trigger("data",n.subarray(r+3,i-2));1!==n[++i]&&i<n.length;);r=i-2,i+=3;break;case 1:if(0!==n[i-1]||0!==n[i-2]){i+=3;break}this.trigger("data",n.subarray(r+3,i-2)),r=i-2,i+=3;break;default:i+=3}n=n.subarray(r),i-=r,r=0},this.flush=function(){n&&3<n.byteLength&&this.trigger("data",n.subarray(r+3)),n=null,r=0,this.trigger("done")}}).prototype=new $o,Vu={100:!0,110:!0,122:!0,244:!0,44:!0,83:!0,86:!0,118:!0,128:!0,138:!0,139:!0,134:!0},(ju=function(){var i,n,r,a,s,o,_,e=new Fu;ju.prototype.init.call(this),(i=this).push=function(t){"video"===t.type&&(n=t.trackId,r=t.pts,a=t.dts,e.push(t))},e.on("data",function(t){var e={trackId:n,pts:r,dts:a,data:t};switch(31&t[0]){case 5:e.nalUnitType="slice_layer_without_partitioning_rbsp_idr";break;case 6:e.nalUnitType="sei_rbsp",e.escapedRBSP=s(t.subarray(1));break;case 7:e.nalUnitType="seq_parameter_set_rbsp",e.escapedRBSP=s(t.subarray(1)),e.config=o(e.escapedRBSP);break;case 8:e.nalUnitType="pic_parameter_set_rbsp";break;case 9:e.nalUnitType="access_unit_delimiter_rbsp"}i.trigger("data",e)}),e.on("done",function(){i.trigger("done")}),this.flush=function(){e.flush()},_=function(t,e){var i,n=8,r=8;for(i=0;i<t;i++)0!==r&&(r=(n+e.readExpGolomb()+256)%256),n=0===r?n:r},s=function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},o=function(t){var e,i,n,r,a,s,o,u,l,c,h,d,p,f=0,m=0,g=0,y=0,v=1;if(i=(e=new Gu(t)).readUnsignedByte(),r=e.readUnsignedByte(),n=e.readUnsignedByte(),e.skipUnsignedExpGolomb(),Vu[i]&&(3===(a=e.readUnsignedExpGolomb())&&e.skipBits(1),e.skipUnsignedExpGolomb(),e.skipUnsignedExpGolomb(),e.skipBits(1),e.readBoolean()))for(h=3!==a?8:12,p=0;p<h;p++)e.readBoolean()&&_(p<6?16:64,e);if(e.skipUnsignedExpGolomb(),0===(s=e.readUnsignedExpGolomb()))e.readUnsignedExpGolomb();else if(1===s)for(e.skipBits(1),e.skipExpGolomb(),e.skipExpGolomb(),o=e.readUnsignedExpGolomb(),p=0;p<o;p++)e.skipExpGolomb();if(e.skipUnsignedExpGolomb(),e.skipBits(1),u=e.readUnsignedExpGolomb(),l=e.readUnsignedExpGolomb(),0===(c=e.readBits(1))&&e.skipBits(1),e.skipBits(1),e.readBoolean()&&(f=e.readUnsignedExpGolomb(),m=e.readUnsignedExpGolomb(),g=e.readUnsignedExpGolomb(),y=e.readUnsignedExpGolomb()),e.readBoolean()&&e.readBoolean()){switch(e.readUnsignedByte()){case 1:d=[1,1];break;case 2:d=[12,11];break;case 3:d=[10,11];break;case 4:d=[16,11];break;case 5:d=[40,33];break;case 6:d=[24,11];break;case 7:d=[20,11];break;case 8:d=[32,11];break;case 9:d=[80,33];break;case 10:d=[18,11];break;case 11:d=[15,11];break;case 12:d=[64,33];break;case 13:d=[160,99];break;case 14:d=[4,3];break;case 15:d=[3,2];break;case 16:d=[2,1];break;case 255:d=[e.readUnsignedByte()<<8|e.readUnsignedByte(),e.readUnsignedByte()<<8|e.readUnsignedByte()]}d&&(v=d[0]/d[1])}return{profileIdc:i,levelIdc:n,profileCompatibility:r,width:Math.ceil((16*(u+1)-2*f-2*m)*v),height:(2-c)*(l+1)*16-2*g-2*y}}}).prototype=new $o;var Xu,Yu={H264Stream:ju,NalByteStream:Fu},$u=Yu.H264Stream,Ku=Yu.NalByteStream,Ju=Object.freeze({default:Yu,__moduleExports:Yu,H264Stream:$u,NalByteStream:Ku});(Xu=function(){var o=new Uint8Array,u=0;Xu.prototype.init.call(this),this.setTimestamp=function(t){u=t},this.parseId3TagSize=function(t,e){var i=t[e+6]<<21|t[e+7]<<14|t[e+8]<<7|t[e+9];return(16&t[e+5])>>4?i+20:i+10},this.parseAdtsSize=function(t,e){var i=(224&t[e+5])>>5,n=t[e+4]<<3;return 6144&t[e+3]|n|i},this.push=function(t){var e,i,n,r,a=0,s=0;for(o.length?(r=o.length,(o=new Uint8Array(t.byteLength+r)).set(o.subarray(0,r)),o.set(t,r)):o=t;3<=o.length-s;)if(o[s]!=="I".charCodeAt(0)||o[s+1]!=="D".charCodeAt(0)||o[s+2]!=="3".charCodeAt(0))if(!0&o[s]&&240==(240&o[s+1])){if(o.length-s<7)break;if((a=this.parseAdtsSize(o,s))>o.length)break;n={type:"audio",data:o.subarray(s,s+a),pts:u,dts:u},this.trigger("data",n),s+=a}else s++;else{if(o.length-s<10)break;if((a=this.parseId3TagSize(o,s))>o.length)break;i={type:"timed-metadata",data:o.subarray(s,s+a)},this.trigger("data",i),s+=a}e=o.length-s,o=0<e?o.subarray(s):new Uint8Array}}).prototype=new $o;var Qu,Zu,tl,el,il,nl,rl,al,sl,ol,ul,ll,cl=Xu,hl=Object.freeze({default:cl,__moduleExports:cl}),dl=[33,16,5,32,164,27],pl=[33,65,108,84,1,2,4,8,168,2,4,8,17,191,252],fl=function(t){for(var e=[];t--;)e.push(0);return e},ml={96000:[dl,[227,64],fl(154),[56]],88200:[dl,[231],fl(170),[56]],64000:[dl,[248,192],fl(240),[56]],48000:[dl,[255,192],fl(268),[55,148,128],fl(54),[112]],44100:[dl,[255,192],fl(268),[55,163,128],fl(84),[112]],32000:[dl,[255,192],fl(268),[55,234],fl(226),[112]],24000:[dl,[255,192],fl(268),[55,255,128],fl(268),[111,112],fl(126),[224]],16000:[dl,[255,192],fl(268),[55,255,128],fl(268),[111,255],fl(269),[223,108],fl(195),[1,192]],12000:[pl,fl(268),[3,127,248],fl(268),[6,255,240],fl(268),[13,255,224],fl(268),[27,253,128],fl(259),[56]],11025:[pl,fl(268),[3,127,248],fl(268),[6,255,240],fl(268),[13,255,224],fl(268),[27,255,192],fl(268),[55,175,128],fl(108),[112]],8000:[pl,fl(268),[3,121,16],fl(47),[7]]},gl=(Qu=ml,Object.keys(Qu).reduce(function(t,e){return t[e]=new Uint8Array(Qu[e].reduce(function(t,e){return t.concat(e)},[])),t},{})),yl=Object.freeze({default:gl,__moduleExports:gl}),vl={secondsToVideoTs:Zu=function(t){return 9e4*t},secondsToAudioTs:tl=function(t,e){return t*e},videoTsToSeconds:el=function(t){return t/9e4},audioTsToSeconds:il=function(t,e){return t/e},audioTsToVideoTs:function(t,e){return Zu(il(t,e))},videoTsToAudioTs:function(t,e){return tl(el(t),e)}},_l=vl.secondsToVideoTs,bl=vl.secondsToAudioTs,Tl=vl.videoTsToSeconds,Sl=vl.audioTsToSeconds,kl=vl.audioTsToVideoTs,Cl=vl.videoTsToAudioTs,wl=Object.freeze({default:vl,__moduleExports:vl,secondsToVideoTs:_l,secondsToAudioTs:bl,videoTsToSeconds:Tl,audioTsToSeconds:Sl,audioTsToVideoTs:kl,videoTsToAudioTs:Cl}),El=Eo&&bo||Eo,Al=Mo&&Po||Mo,Ll=Vo&&Bo||Vo,Ol=Bu&&Mu||Bu,Pl=zu&&Hu||zu,Ul=hl&&cl||hl,xl=yl&&gl||yl,Il=wl&&vl||wl,Dl=(Ju&&Yu||Ju).H264Stream,Rl=["audioobjecttype","channelcount","samplerate","samplingfrequencyindex","samplesize"],Ml=["width","height","profileIdc","levelIdc","profileCompatibility"];ol=function(t){return t[0]==="I".charCodeAt(0)&&t[1]==="D".charCodeAt(0)&&t[2]==="3".charCodeAt(0)},ul=function(t,e){var i;if(t.length!==e.length)return!1;for(i=0;i<t.length;i++)if(t[i]!==e[i])return!1;return!0},ll=function(t){var e,i=0;for(e=0;e<t.length;e++)i+=t[e].data.byteLength;return i},(rl=function(r,a){var s=[],o=0,e=0,l=0,c=1/0;a=a||{},rl.prototype.init.call(this),this.push=function(e){Ll.collectDtsInfo(r,e),r&&Rl.forEach(function(t){r[t]=e[t]}),s.push(e)},this.setEarliestDts=function(t){e=t-r.timelineStartInfo.baseMediaDecodeTime},this.setVideoBaseMediaDecodeTime=function(t){c=t},this.setAudioAppendStart=function(t){l=t},this.flush=function(){var t,e,i,n;0!==s.length&&(t=this.trimAdtsFramesByEarliestDts_(s),r.baseMediaDecodeTime=Ll.calculateTrackBaseMediaDecodeTime(r,a.keepOriginalTimestamps),this.prefixWithSilence_(r,t),r.samples=this.generateSampleTable_(t),i=El.mdat(this.concatenateFrameData_(t)),s=[],e=El.moof(o,[r]),n=new Uint8Array(e.byteLength+i.byteLength),o++,n.set(e),n.set(i,e.byteLength),Ll.clearDtsInfo(r),this.trigger("data",{track:r,boxes:n})),this.trigger("done","AudioSegmentStream")},this.prefixWithSilence_=function(t,e){var i,n,r,a,s=0,o=0,u=0;if(e.length&&(i=Il.audioTsToVideoTs(t.baseMediaDecodeTime,t.samplerate),n=Math.ceil(9e4/(t.samplerate/1024)),l&&c&&(s=i-Math.max(l,c),u=(o=Math.floor(s/n))*n),!(o<1||45e3<u))){for((r=xl[t.samplerate])||(r=e[0].data),a=0;a<o;a++)e.splice(a,0,{data:r});t.baseMediaDecodeTime-=Math.floor(Il.videoTsToAudioTs(u,t.samplerate))}},this.trimAdtsFramesByEarliestDts_=function(t){return r.minSegmentDts>=e?t:(r.minSegmentDts=1/0,t.filter(function(t){return t.dts>=e&&(r.minSegmentDts=Math.min(r.minSegmentDts,t.dts),r.minSegmentPts=r.minSegmentDts,!0)}))},this.generateSampleTable_=function(t){var e,i,n=[];for(e=0;e<t.length;e++)i=t[e],n.push({size:i.data.byteLength,duration:1024});return n},this.concatenateFrameData_=function(t){var e,i,n=0,r=new Uint8Array(ll(t));for(e=0;e<t.length;e++)i=t[e],r.set(i.data,n),n+=i.data.byteLength;return r}}).prototype=new $o,(nl=function(o,u){var e,i,l=0,c=[],h=[];u=u||{},nl.prototype.init.call(this),delete o.minPTS,this.gopCache_=[],this.push=function(t){Ll.collectDtsInfo(o,t),"seq_parameter_set_rbsp"!==t.nalUnitType||e||(e=t.config,o.sps=[t.data],Ml.forEach(function(t){o[t]=e[t]},this)),"pic_parameter_set_rbsp"!==t.nalUnitType||i||(i=t.data,o.pps=[t.data]),c.push(t)},this.flush=function(){for(var t,e,i,n,r,a;c.length&&"access_unit_delimiter_rbsp"!==c[0].nalUnitType;)c.shift();if(0===c.length)return this.resetStream_(),void this.trigger("done","VideoSegmentStream");if(t=Al.groupNalsIntoFrames(c),(i=Al.groupFramesIntoGops(t))[0][0].keyFrame||((e=this.getGopForFusion_(c[0],o))?(i.unshift(e),i.byteLength+=e.byteLength,i.nalCount+=e.nalCount,i.pts=e.pts,i.dts=e.dts,i.duration+=e.duration):i=Al.extendFirstKeyFrame(i)),h.length){var s;if(!(s=u.alignGopsAtEnd?this.alignGopsAtEnd_(i):this.alignGopsAtStart_(i)))return this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.resetStream_(),void this.trigger("done","VideoSegmentStream");Ll.clearDtsInfo(o),i=s}Ll.collectDtsInfo(o,i),o.samples=Al.generateSampleTable(i),r=El.mdat(Al.concatenateNalData(i)),o.baseMediaDecodeTime=Ll.calculateTrackBaseMediaDecodeTime(o,u.keepOriginalTimestamps),this.trigger("processedGopsInfo",i.map(function(t){return{pts:t.pts,dts:t.dts,byteLength:t.byteLength}})),this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.trigger("baseMediaDecodeTime",o.baseMediaDecodeTime),this.trigger("timelineStartInfo",o.timelineStartInfo),n=El.moof(l,[o]),a=new Uint8Array(n.byteLength+r.byteLength),l++,a.set(n),a.set(r,n.byteLength),this.trigger("data",{track:o,boxes:a}),this.resetStream_(),this.trigger("done","VideoSegmentStream")},this.resetStream_=function(){Ll.clearDtsInfo(o),i=e=void 0},this.getGopForFusion_=function(t){var e,i,n,r,a,s=1/0;for(a=0;a<this.gopCache_.length;a++)n=(r=this.gopCache_[a]).gop,o.pps&&ul(o.pps[0],r.pps[0])&&o.sps&&ul(o.sps[0],r.sps[0])&&(n.dts<o.timelineStartInfo.dts||-1e4<=(e=t.dts-n.dts-n.duration)&&e<=45e3&&(!i||e<s)&&(i=r,s=e));return i?i.gop:null},this.alignGopsAtStart_=function(t){var e,i,n,r,a,s,o,u;for(a=t.byteLength,s=t.nalCount,o=t.duration,e=i=0;e<h.length&&i<t.length&&(n=h[e],r=t[i],n.pts!==r.pts);)r.pts>n.pts?e++:(i++,a-=r.byteLength,s-=r.nalCount,o-=r.duration);return 0===i?t:i===t.length?null:((u=t.slice(i)).byteLength=a,u.duration=o,u.nalCount=s,u.pts=u[0].pts,u.dts=u[0].dts,u)},this.alignGopsAtEnd_=function(t){var e,i,n,r,a,s,o;for(e=h.length-1,i=t.length-1,a=null,s=!1;0<=e&&0<=i;){if(n=h[e],r=t[i],n.pts===r.pts){s=!0;break}n.pts>r.pts?e--:(e===h.length-1&&(a=i),i--)}if(!s&&null===a)return null;if(0===(o=s?i:a))return t;var u=t.slice(o),l=u.reduce(function(t,e){return t.byteLength+=e.byteLength,t.duration+=e.duration,t.nalCount+=e.nalCount,t},{byteLength:0,duration:0,nalCount:0});return u.byteLength=l.byteLength,u.duration=l.duration,u.nalCount=l.nalCount,u.pts=u[0].pts,u.dts=u[0].dts,u},this.alignGopsWith=function(t){h=t}}).prototype=new $o,(sl=function(t,e){this.numberOfTracks=0,this.metadataStream=e,"undefined"!=typeof t.remux?this.remuxTracks=!!t.remux:this.remuxTracks=!0,this.pendingTracks=[],this.videoTrack=null,this.pendingBoxes=[],this.pendingCaptions=[],this.pendingMetadata=[],this.pendingBytes=0,this.emittedTracks=0,sl.prototype.init.call(this),this.push=function(t){return t.text?this.pendingCaptions.push(t):t.frames?this.pendingMetadata.push(t):(this.pendingTracks.push(t.track),this.pendingBoxes.push(t.boxes),this.pendingBytes+=t.boxes.byteLength,"video"===t.track.type&&(this.videoTrack=t.track),void("audio"===t.track.type&&(this.audioTrack=t.track)))}}).prototype=new $o,sl.prototype.flush=function(t){var e,i,n,r,a=0,s={captions:[],captionStreams:{},metadata:[],info:{}},o=0;if(this.pendingTracks.length<this.numberOfTracks){if("VideoSegmentStream"!==t&&"AudioSegmentStream"!==t)return;if(this.remuxTracks)return;if(0===this.pendingTracks.length)return this.emittedTracks++,void(this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0))}for(this.videoTrack?(o=this.videoTrack.timelineStartInfo.pts,Ml.forEach(function(t){s.info[t]=this.videoTrack[t]},this)):this.audioTrack&&(o=this.audioTrack.timelineStartInfo.pts,Rl.forEach(function(t){s.info[t]=this.audioTrack[t]},this)),1===this.pendingTracks.length?s.type=this.pendingTracks[0].type:s.type="combined",this.emittedTracks+=this.pendingTracks.length,n=El.initSegment(this.pendingTracks),s.initSegment=new Uint8Array(n.byteLength),s.initSegment.set(n),s.data=new Uint8Array(this.pendingBytes),r=0;r<this.pendingBoxes.length;r++)s.data.set(this.pendingBoxes[r],a),a+=this.pendingBoxes[r].byteLength;for(r=0;r<this.pendingCaptions.length;r++)(e=this.pendingCaptions[r]).startTime=e.startPts-o,e.startTime/=9e4,e.endTime=e.endPts-o,e.endTime/=9e4,s.captionStreams[e.stream]=!0,s.captions.push(e);for(r=0;r<this.pendingMetadata.length;r++)(i=this.pendingMetadata[r]).cueTime=i.pts-o,i.cueTime/=9e4,s.metadata.push(i);s.metadata.dispatchType=this.metadataStream.dispatchType,this.pendingTracks.length=0,this.videoTrack=null,this.pendingBoxes.length=0,this.pendingCaptions.length=0,this.pendingBytes=0,this.pendingMetadata.length=0,this.trigger("data",s),this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0)},(al=function(n){var r,a,s=this,i=!0;al.prototype.init.call(this),n=n||{},this.baseMediaDecodeTime=n.baseMediaDecodeTime||0,this.transmuxPipeline_={},this.setupAacPipeline=function(){var e={};(this.transmuxPipeline_=e).type="aac",e.metadataStream=new Ol.MetadataStream,e.aacStream=new Ul,e.audioTimestampRolloverStream=new Ol.TimestampRolloverStream("audio"),e.timedMetadataTimestampRolloverStream=new Ol.TimestampRolloverStream("timed-metadata"),e.adtsStream=new Pl,e.coalesceStream=new sl(n,e.metadataStream),e.headOfPipeline=e.aacStream,e.aacStream.pipe(e.audioTimestampRolloverStream).pipe(e.adtsStream),e.aacStream.pipe(e.timedMetadataTimestampRolloverStream).pipe(e.metadataStream).pipe(e.coalesceStream),e.metadataStream.on("timestamp",function(t){e.aacStream.setTimestamp(t.timeStamp)}),e.aacStream.on("data",function(t){"timed-metadata"!==t.type||e.audioSegmentStream||(a=a||{timelineStartInfo:{baseMediaDecodeTime:s.baseMediaDecodeTime},codec:"adts",type:"audio"},e.coalesceStream.numberOfTracks++,e.audioSegmentStream=new rl(a,n),e.adtsStream.pipe(e.audioSegmentStream).pipe(e.coalesceStream))}),e.coalesceStream.on("data",this.trigger.bind(this,"data")),e.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setupTsPipeline=function(){var i={};(this.transmuxPipeline_=i).type="ts",i.metadataStream=new Ol.MetadataStream,i.packetStream=new Ol.TransportPacketStream,i.parseStream=new Ol.TransportParseStream,i.elementaryStream=new Ol.ElementaryStream,i.videoTimestampRolloverStream=new Ol.TimestampRolloverStream("video"),i.audioTimestampRolloverStream=new Ol.TimestampRolloverStream("audio"),i.timedMetadataTimestampRolloverStream=new Ol.TimestampRolloverStream("timed-metadata"),i.adtsStream=new Pl,i.h264Stream=new Dl,i.captionStream=new Ol.CaptionStream,i.coalesceStream=new sl(n,i.metadataStream),i.headOfPipeline=i.packetStream,i.packetStream.pipe(i.parseStream).pipe(i.elementaryStream),i.elementaryStream.pipe(i.videoTimestampRolloverStream).pipe(i.h264Stream),i.elementaryStream.pipe(i.audioTimestampRolloverStream).pipe(i.adtsStream),i.elementaryStream.pipe(i.timedMetadataTimestampRolloverStream).pipe(i.metadataStream).pipe(i.coalesceStream),i.h264Stream.pipe(i.captionStream).pipe(i.coalesceStream),i.elementaryStream.on("data",function(t){var e;if("metadata"===t.type){for(e=t.tracks.length;e--;)r||"video"!==t.tracks[e].type?a||"audio"!==t.tracks[e].type||((a=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime):(r=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime;r&&!i.videoSegmentStream&&(i.coalesceStream.numberOfTracks++,i.videoSegmentStream=new nl(r,n),i.videoSegmentStream.on("timelineStartInfo",function(t){a&&(a.timelineStartInfo=t,i.audioSegmentStream.setEarliestDts(t.dts))}),i.videoSegmentStream.on("processedGopsInfo",s.trigger.bind(s,"gopInfo")),i.videoSegmentStream.on("baseMediaDecodeTime",function(t){a&&i.audioSegmentStream.setVideoBaseMediaDecodeTime(t)}),i.h264Stream.pipe(i.videoSegmentStream).pipe(i.coalesceStream)),a&&!i.audioSegmentStream&&(i.coalesceStream.numberOfTracks++,i.audioSegmentStream=new rl(a,n),i.adtsStream.pipe(i.audioSegmentStream).pipe(i.coalesceStream))}}),i.coalesceStream.on("data",this.trigger.bind(this,"data")),i.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setBaseMediaDecodeTime=function(t){var e=this.transmuxPipeline_;this.baseMediaDecodeTime=t,a&&(a.timelineStartInfo.dts=void 0,a.timelineStartInfo.pts=void 0,Ll.clearDtsInfo(a),a.timelineStartInfo.baseMediaDecodeTime=t,e.audioTimestampRolloverStream&&e.audioTimestampRolloverStream.discontinuity()),r&&(e.videoSegmentStream&&(e.videoSegmentStream.gopCache_=[],e.videoTimestampRolloverStream.discontinuity()),r.timelineStartInfo.dts=void 0,r.timelineStartInfo.pts=void 0,Ll.clearDtsInfo(r),e.captionStream.reset(),r.timelineStartInfo.baseMediaDecodeTime=t),e.timedMetadataTimestampRolloverStream&&e.timedMetadataTimestampRolloverStream.discontinuity()},this.setAudioAppendStart=function(t){a&&this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(t)},this.alignGopsWith=function(t){r&&this.transmuxPipeline_.videoSegmentStream&&this.transmuxPipeline_.videoSegmentStream.alignGopsWith(t)},this.push=function(t){if(i){var e=ol(t);e&&"aac"!==this.transmuxPipeline_.type?this.setupAacPipeline():e||"ts"===this.transmuxPipeline_.type||this.setupTsPipeline(),i=!1}this.transmuxPipeline_.headOfPipeline.push(t)},this.flush=function(){i=!0,this.transmuxPipeline_.headOfPipeline.flush()},this.resetCaptions=function(){this.transmuxPipeline_.captionStream&&this.transmuxPipeline_.captionStream.reset()}}).prototype=new $o;var Bl,Nl,jl={Transmuxer:al,VideoSegmentStream:nl,AudioSegmentStream:rl,AUDIO_PROPERTIES:Rl,VIDEO_PROPERTIES:Ml},Fl=jl.Transmuxer,Vl=jl.VideoSegmentStream,Hl=jl.AudioSegmentStream,zl=jl.AUDIO_PROPERTIES,ql=jl.VIDEO_PROPERTIES,Wl=Object.freeze({default:jl,__moduleExports:jl,Transmuxer:Fl,VideoSegmentStream:Vl,AudioSegmentStream:Hl,AUDIO_PROPERTIES:zl,VIDEO_PROPERTIES:ql}),Gl=vo.parseType,Xl=function(t){return new Date(1e3*t-20828448e5)},Yl=function(t){return{isLeading:(12&t[0])>>>2,dependsOn:3&t[0],isDependedOn:(192&t[1])>>>6,hasRedundancy:(48&t[1])>>>4,paddingValue:(14&t[1])>>>1,isNonSyncSample:1&t[1],degradationPriority:t[2]<<8|t[3]}},$l={avc1:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{dataReferenceIndex:e.getUint16(6),width:e.getUint16(24),height:e.getUint16(26),horizresolution:e.getUint16(28)+e.getUint16(30)/16,vertresolution:e.getUint16(32)+e.getUint16(34)/16,frameCount:e.getUint16(40),depth:e.getUint16(74),config:Bl(t.subarray(78,t.byteLength))}},avcC:function(t){var e,i,n,r,a=new DataView(t.buffer,t.byteOffset,t.byteLength),s={configurationVersion:t[0],avcProfileIndication:t[1],profileCompatibility:t[2],avcLevelIndication:t[3],lengthSizeMinusOne:3&t[4],sps:[],pps:[]},o=31&t[5];for(n=6,r=0;r<o;r++)i=a.getUint16(n),n+=2,s.sps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;for(e=t[n],n++,r=0;r<e;r++)i=a.getUint16(n),n+=2,s.pps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;return s},btrt:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{bufferSizeDB:e.getUint32(0),maxBitrate:e.getUint32(4),avgBitrate:e.getUint32(8)}},esds:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),esId:t[6]<<8|t[7],streamPriority:31&t[8],decoderConfig:{objectProfileIndication:t[11],streamType:t[12]>>>2&63,bufferSize:t[13]<<16|t[14]<<8|t[15],maxBitrate:t[16]<<24|t[17]<<16|t[18]<<8|t[19],avgBitrate:t[20]<<24|t[21]<<16|t[22]<<8|t[23],decoderConfigDescriptor:{tag:t[24],length:t[25],audioObjectType:t[26]>>>3&31,samplingFrequencyIndex:(7&t[26])<<1|t[27]>>>7&1,channelConfiguration:t[27]>>>3&15}}}},ftyp:function(t){for(var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={majorBrand:Gl(t.subarray(0,4)),minorVersion:e.getUint32(4),compatibleBrands:[]},n=8;n<t.byteLength;)i.compatibleBrands.push(Gl(t.subarray(n,n+4))),n+=4;return i},dinf:function(t){return{boxes:Bl(t)}},dref:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),dataReferences:Bl(t.subarray(8))}},hdlr:function(t){var e={version:new DataView(t.buffer,t.byteOffset,t.byteLength).getUint8(0),flags:new Uint8Array(t.subarray(1,4)),handlerType:Gl(t.subarray(8,12)),name:""},i=8;for(i=24;i<t.byteLength;i++){if(0===t[i]){i++;break}e.name+=String.fromCharCode(t[i])}return e.name=decodeURIComponent(escape(e.name)),e},mdat:function(t){return{byteLength:t.byteLength,nals:function(t){var e,i,n=new DataView(t.buffer,t.byteOffset,t.byteLength),r=[];for(e=0;e+4<t.length;e+=i)if(i=n.getUint32(e),e+=4,i<=0)r.push("<span style='color:red;'>MALFORMED DATA</span>");else switch(31&t[e]){case 1:r.push("slice_layer_without_partitioning_rbsp");break;case 5:r.push("slice_layer_without_partitioning_rbsp_idr");break;case 6:r.push("sei_rbsp");break;case 7:r.push("seq_parameter_set_rbsp");break;case 8:r.push("pic_parameter_set_rbsp");break;case 9:r.push("access_unit_delimiter_rbsp");break;default:r.push("UNKNOWN NAL - "+t[e]&31)}return r}(t)}},mdhd:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n=4,r={version:i.getUint8(0),flags:new Uint8Array(t.subarray(1,4)),language:""};return 1===r.version?(n+=4,r.creationTime=Xl(i.getUint32(n)),n+=8,r.modificationTime=Xl(i.getUint32(n)),n+=4,r.timescale=i.getUint32(n),n+=8):(r.creationTime=Xl(i.getUint32(n)),n+=4,r.modificationTime=Xl(i.getUint32(n)),n+=4,r.timescale=i.getUint32(n),n+=4),r.duration=i.getUint32(n),n+=4,e=i.getUint16(n),r.language+=String.fromCharCode(96+(e>>10)),r.language+=String.fromCharCode(96+((992&e)>>5)),r.language+=String.fromCharCode(96+(31&e)),r},mdia:function(t){return{boxes:Bl(t)}},mfhd:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),sequenceNumber:t[4]<<24|t[5]<<16|t[6]<<8|t[7]}},minf:function(t){return{boxes:Bl(t)}},mp4a:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={dataReferenceIndex:e.getUint16(6),channelcount:e.getUint16(16),samplesize:e.getUint16(18),samplerate:e.getUint16(24)+e.getUint16(26)/65536};return 28<t.byteLength&&(i.streamDescriptor=Bl(t.subarray(28))[0]),i},moof:function(t){return{boxes:Bl(t)}},moov:function(t){return{boxes:Bl(t)}},mvex:function(t){return{boxes:Bl(t)}},mvhd:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i=4,n={version:e.getUint8(0),flags:new Uint8Array(t.subarray(1,4))};return 1===n.version?(i+=4,n.creationTime=Xl(e.getUint32(i)),i+=8,n.modificationTime=Xl(e.getUint32(i)),i+=4,n.timescale=e.getUint32(i),i+=8):(n.creationTime=Xl(e.getUint32(i)),i+=4,n.modificationTime=Xl(e.getUint32(i)),i+=4,n.timescale=e.getUint32(i),i+=4),n.duration=e.getUint32(i),i+=4,n.rate=e.getUint16(i)+e.getUint16(i+2)/16,i+=4,n.volume=e.getUint8(i)+e.getUint8(i+1)/8,i+=2,i+=2,i+=8,n.matrix=new 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Fc=188,Vc=function(t,e,i){for(var n,r,a,s,o=0,u=Fc,l=!1;u<t.byteLength;)if(71!==t[o]||71!==t[u])o++,u++;else{switch(n=t.subarray(o,u),jc.ts.parseType(n,e.pid)){case"pes":r=jc.ts.parsePesType(n,e.table),a=jc.ts.parsePayloadUnitStartIndicator(n),"audio"===r&&a&&(s=jc.ts.parsePesTime(n))&&(s.type="audio",i.audio.push(s),l=!0)}if(l)break;o+=Fc,u+=Fc}for(o=(u=t.byteLength)-Fc,l=!1;0<=o;)if(71!==t[o]||71!==t[u])o--,u--;else{switch(n=t.subarray(o,u),jc.ts.parseType(n,e.pid)){case"pes":r=jc.ts.parsePesType(n,e.table),a=jc.ts.parsePayloadUnitStartIndicator(n),"audio"===r&&a&&(s=jc.ts.parsePesTime(n))&&(s.type="audio",i.audio.push(s),l=!0)}if(l)break;o-=Fc,u-=Fc}},Hc=function(t,e,i){for(var n,r,a,s,o,u,l,c=0,h=Fc,d=!1,p={data:[],size:0};h<t.byteLength;)if(71!==t[c]||71!==t[h])c++,h++;else{switch(n=t.subarray(c,h),jc.ts.parseType(n,e.pid)){case"pes":if(r=jc.ts.parsePesType(n,e.table),a=jc.ts.parsePayloadUnitStartIndicator(n),"video"===r&&(a&&!d&&(s=jc.ts.parsePesTime(n))&&(s.type="video",i.video.push(s),d=!0),!i.firstKeyFrame)){if(a&&0!==p.size){for(o=new Uint8Array(p.size),u=0;p.data.length;)l=p.data.shift(),o.set(l,u),u+=l.byteLength;jc.ts.videoPacketContainsKeyFrame(o)&&(i.firstKeyFrame=jc.ts.parsePesTime(o),i.firstKeyFrame.type="video"),p.size=0}p.data.push(n),p.size+=n.byteLength}}if(d&&i.firstKeyFrame)break;c+=Fc,h+=Fc}for(c=(h=t.byteLength)-Fc,d=!1;0<=c;)if(71!==t[c]||71!==t[h])c--,h--;else{switch(n=t.subarray(c,h),jc.ts.parseType(n,e.pid)){case"pes":r=jc.ts.parsePesType(n,e.table),a=jc.ts.parsePayloadUnitStartIndicator(n),"video"===r&&a&&(s=jc.ts.parsePesTime(n))&&(s.type="video",i.video.push(s),d=!0)}if(d)break;c-=Fc,h-=Fc}},zc=function(t){var e={pid:null,table:null},i={};for(var n in function(t,e){for(var i,n=0,r=Fc;r<t.byteLength;)if(71!==t[n]||71!==t[r])n++,r++;else{switch(i=t.subarray(n,r),jc.ts.parseType(i,e.pid)){case"pat":e.pid||(e.pid=jc.ts.parsePat(i));break;case"pmt":e.table||(e.table=jc.ts.parsePmt(i))}if(e.pid&&e.table)return;n+=Fc,r+=Fc}}(t,e),e.table){if(e.table.hasOwnProperty(n))switch(e.table[n]){case _u.H264_STREAM_TYPE:i.video=[],Hc(t,e,i),0===i.video.length&&delete i.video;break;case _u.ADTS_STREAM_TYPE:i.audio=[],Vc(t,e,i),0===i.audio.length&&delete i.audio}}return i},qc=function(t,e){var i,n;return(n=(i=t)[0]==="I".charCodeAt(0)&&i[1]==="D".charCodeAt(0)&&i[2]==="3".charCodeAt(0)?function(t){for(var e,i=!1,n=0,r=null,a=null,s=0,o=0;3<=t.length-o;){switch(jc.aac.parseType(t,o)){case"timed-metadata":if(t.length-o<10){i=!0;break}if((s=jc.aac.parseId3TagSize(t,o))>t.length){i=!0;break}null===a&&(e=t.subarray(o,o+s),a=jc.aac.parseAacTimestamp(e)),o+=s;break;case"audio":if(t.length-o<7){i=!0;break}if((s=jc.aac.parseAdtsSize(t,o))>t.length){i=!0;break}null===r&&(e=t.subarray(o,o+s),r=jc.aac.parseSampleRate(e)),n++,o+=s;break;default:o++}if(i)return null}if(null===r||null===a)return null;var u=9e4/r;return{audio:[{type:"audio",dts:a,pts:a},{type:"audio",dts:a+1024*n*u,pts:a+1024*n*u}]}}(t):zc(t))&&(n.audio||n.video)?(function(t,e){if(t.audio&&t.audio.length){var i=e;"undefined"==typeof i&&(i=t.audio[0].dts),t.audio.forEach(function(t){t.dts=Nc(t.dts,i),t.pts=Nc(t.pts,i),t.dtsTime=t.dts/9e4,t.ptsTime=t.pts/9e4})}if(t.video&&t.video.length){var n=e;if("undefined"==typeof n&&(n=t.video[0].dts),t.video.forEach(function(t){t.dts=Nc(t.dts,n),t.pts=Nc(t.pts,n),t.dtsTime=t.dts/9e4,t.ptsTime=t.pts/9e4}),t.firstKeyFrame){var r=t.firstKeyFrame;r.dts=Nc(r.dts,n),r.pts=Nc(r.pts,n),r.dtsTime=r.dts/9e4,r.ptsTime=r.dts/9e4}}}(n,e),n):null};var Wc=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},Gc=function(){function n(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(t,e,i){return e&&n(t.prototype,e),i&&n(t,i),t}}(),Xc=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!==("undefined"==typeof e?"undefined":Ee(e))&&"function"!=typeof e?t:e},Yc=function(){var t=[[[],[],[],[],[]],[[],[],[],[],[]]],e=t[0],i=t[1],n=e[4],r=i[4],a=void 0,s=void 0,o=void 0,u=[],l=[],c=void 0,h=void 0,d=void 0,p=void 0,f=void 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t.prototype.on=function(t,e){this.listeners[t]||(this.listeners[t]=[]),this.listeners[t].push(e)},t.prototype.off=function(t,e){if(!this.listeners[t])return!1;var i=this.listeners[t].indexOf(e);return this.listeners[t].splice(i,1),-1<i},t.prototype.trigger=function(t){var e=this.listeners[t];if(e)if(2===arguments.length)for(var i=e.length,n=0;n<i;++n)e[n].call(this,arguments[1]);else for(var r=Array.prototype.slice.call(arguments,1),a=e.length,s=0;s<a;++s)e[s].apply(this,r)},t.prototype.dispose=function(){this.listeners={}},t.prototype.pipe=function(e){this.on("data",function(t){e.push(t)})},t}(),Qc=function(e){function i(){Wc(this,i);var t=Xc(this,e.call(this,Jc));return t.jobs=[],t.delay=1,t.timeout_=null,t}return function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+("undefined"==typeof 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r=dh(this.master,n.manifest);this.targetDuration=n.manifest.targetDuration,r?(this.master=r,this.media_=this.master.playlists[n.manifest.uri]):this.trigger("playlistunchanged"),this.media().endList||(g.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=g.setTimeout(function(){i.trigger("mediaupdatetimeout")},mh(this.media(),!!r))),this.trigger("loadedplaylist")}},{key:"dispose",value:function(){this.stopRequest(),g.clearTimeout(this.mediaUpdateTimeout)}},{key:"stopRequest",value:function(){if(this.request){var t=this.request;this.request=null,t.onreadystatechange=null,t.abort()}}},{key:"media",value:function(i){var n=this;if(!i)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);var r=this.state;if("string"==typeof i){if(!this.master.playlists[i])throw new Error("Unknown playlist URI: "+i);i=this.master.playlists[i]}var t=!this.media_||i.uri!==this.media_.uri;if(this.master.playlists[i.uri].endList)return this.request&&(this.request.onreadystatechange=null,this.request.abort(),this.request=null),this.state="HAVE_METADATA",this.media_=i,void(t&&(this.trigger("mediachanging"),this.trigger("mediachange")));if(t){if(this.state="SWITCHING_MEDIA",this.request){if(ih(this.master.uri,i.uri)===this.request.url)return;this.request.onreadystatechange=null,this.request.abort(),this.request=null}this.media_&&this.trigger("mediachanging"),this.request=this.hls_.xhr({uri:ih(this.master.uri,i.uri),withCredentials:this.withCredentials},function(t,e){if(n.request){if(t)return 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Uint8Array(i))},b=function(t,e){return"audio"===t.type?B(t,e):N(t,e)};var V,H,z={ftyp:r=function(){return o(T.ftyp,S,k,S,C)},mdat:function(t){return o(T.mdat,t)},moof:t,moov:s,initSegment:function(t){var e,i=r(),n=s(t);return(e=new Uint8Array(i.byteLength+n.byteLength)).set(i),e.set(n,i.byteLength),e}},q=function(t){return t>>>0},W={findBox:V=function(t,e){var i,n,r,a,s,o=[];if(!e.length)return null;for(i=0;i<t.byteLength;)n=q(t[i]<<24|t[i+1]<<16|t[i+2]<<8|t[i+3]),r=H(t.subarray(i+4,i+8)),a=1<n?i+n:t.byteLength,r===e[0]&&(1===e.length?o.push(t.subarray(i+8,a)):(s=V(t.subarray(i+8,a),e.slice(1))).length&&(o=o.concat(s))),i=a;return o},parseType:H=function(t){var e="";return e+=String.fromCharCode(t[0]),e+=String.fromCharCode(t[1]),e+=String.fromCharCode(t[2]),e+=String.fromCharCode(t[3])},timescale:function(t){return V(t,["moov","trak"]).reduce(function(t,e){var i,n,r,a,s;return(i=V(e,["tkhd"])[0])?(n=i[0],a=q(i[r=0===n?12:20]<<24|i[r+1]<<16|i[r+2]<<8|i[r+3]),(s=V(e,["mdia","mdhd"])[0])?(r=0===(n=s[0])?12:20,t[a]=q(s[r]<<24|s[r+1]<<16|s[r+2]<<8|s[r+3]),t):null):null},{})},startTime:function(r,t){var e,i,n;return e=V(t,["moof","traf"]),i=[].concat.apply([],e.map(function(n){return V(n,["tfhd"]).map(function(t){var e,i;return e=q(t[4]<<24|t[5]<<16|t[6]<<8|t[7]),i=r[e]||9e4,(V(n,["tfdt"]).map(function(t){var e,i;return e=t[0],i=q(t[4]<<24|t[5]<<16|t[6]<<8|t[7]),1===e&&(i*=Math.pow(2,32),i+=q(t[8]<<24|t[9]<<16|t[10]<<8|t[11])),i})[0]||1/0)/i})})),n=Math.min.apply(null,i),isFinite(n)?n:0},videoTrackIds:function(t){var e=V(t,["moov","trak"]),o=[];return e.forEach(function(t){var e=V(t,["mdia","hdlr"]),s=V(t,["tkhd"]);e.forEach(function(t,e){var i,n,r=H(t.subarray(8,12)),a=s[e];"vide"===r&&(n=0===(i=new DataView(a.buffer,a.byteOffset,a.byteLength)).getUint8(0)?i.getUint32(12):i.getUint32(20),o.push(n))})}),o}},G=function(){this.init=function(){var a={};this.on=function(t,e){a[t]||(a[t]=[]),a[t]=a[t].concat(e)},this.off=function(t,e){var i;return!!a[t]&&(i=a[t].indexOf(e),a[t]=a[t].slice(),a[t].splice(i,1),-1<i)},this.trigger=function(t){var e,i,n,r;if(e=a[t])if(2===arguments.length)for(n=e.length,i=0;i<n;++i)e[i].call(this,arguments[1]);else{for(r=[],i=arguments.length,i=1;i<arguments.length;++i)r.push(arguments[i]);for(n=e.length,i=0;i<n;++i)e[i].apply(this,r)}},this.dispose=function(){a={}}}};G.prototype.pipe=function(e){return this.on("data",function(t){e.push(t)}),this.on("done",function(t){e.flush(t)}),e},G.prototype.push=function(t){this.trigger("data",t)},G.prototype.flush=function(t){this.trigger("done",t)};var X=G,Y=function(t){var e,i,n=[],r=[];for(e=n.byteLength=0;e<t.length;e++)"access_unit_delimiter_rbsp"===(i=t[e]).nalUnitType?(n.length&&(n.duration=i.dts-n.dts,r.push(n)),(n=[i]).byteLength=i.data.byteLength,n.pts=i.pts,n.dts=i.dts):("slice_layer_without_partitioning_rbsp_idr"===i.nalUnitType&&(n.keyFrame=!0),n.duration=i.dts-n.dts,n.byteLength+=i.data.byteLength,n.push(i));return r.length&&(!n.duration||n.duration<=0)&&(n.duration=r[r.length-1].duration),r.push(n),r},$=function(t){var e,i,n=[],r=[];for(n.byteLength=0,n.nalCount=0,n.duration=0,n.pts=t[0].pts,n.dts=t[0].dts,r.byteLength=0,r.nalCount=0,r.duration=0,r.pts=t[0].pts,r.dts=t[0].dts,e=0;e<t.length;e++)(i=t[e]).keyFrame?(n.length&&(r.push(n),r.byteLength+=n.byteLength,r.nalCount+=n.nalCount,r.duration+=n.duration),(n=[i]).nalCount=i.length,n.byteLength=i.byteLength,n.pts=i.pts,n.dts=i.dts,n.duration=i.duration):(n.duration+=i.duration,n.nalCount+=i.length,n.byteLength+=i.byteLength,n.push(i));return r.length&&n.duration<=0&&(n.duration=r[r.length-1].duration),r.byteLength+=n.byteLength,r.nalCount+=n.nalCount,r.duration+=n.duration,r.push(n),r},K=function(t){var e;return!t[0][0].keyFrame&&1<t.length&&(e=t.shift(),t.byteLength-=e.byteLength,t.nalCount-=e.nalCount,t[0][0].dts=e.dts,t[0][0].pts=e.pts,t[0][0].duration+=e.duration),t},J=function(t,e){var i,n,r,a,s,o,u,l=e||0,c=[];for(i=0;i<t.length;i++)for(a=t[i],n=0;n<a.length;n++)s=a[n],o=s,u=void 0,(u={size:0,flags:{isLeading:0,dependsOn:1,isDependedOn:0,hasRedundancy:0,degradationPriority:0,isNonSyncSample:1}}).dataOffset=l,u.compositionTimeOffset=o.pts-o.dts,u.duration=o.duration,u.size=4*o.length,u.size+=o.byteLength,o.keyFrame&&(u.flags.dependsOn=2,u.flags.isNonSyncSample=0),l+=(r=u).size,c.push(r);return c},Q=function(t){var e,i,n,r,a,s,o=0,u=t.byteLength,l=t.nalCount,c=new Uint8Array(u+4*l),h=new DataView(c.buffer);for(e=0;e<t.length;e++)for(r=t[e],i=0;i<r.length;i++)for(a=r[i],n=0;n<a.length;n++)s=a[n],h.setUint32(o,s.data.byteLength),o+=4,c.set(s.data,o),o+=s.data.byteLength;return c},Z=function(t){delete t.minSegmentDts,delete t.maxSegmentDts,delete t.minSegmentPts,delete t.maxSegmentPts},tt=function(t,e){var i,n=t.minSegmentDts;return e||(n-=t.timelineStartInfo.dts),i=t.timelineStartInfo.baseMediaDecodeTime,i+=n,i=Math.max(0,i),"audio"===t.type&&(i*=t.samplerate/9e4,i=Math.floor(i)),i},et=function(t,e){"number"==typeof e.pts&&(void 0===t.timelineStartInfo.pts&&(t.timelineStartInfo.pts=e.pts),void 0===t.minSegmentPts?t.minSegmentPts=e.pts:t.minSegmentPts=Math.min(t.minSegmentPts,e.pts),void 0===t.maxSegmentPts?t.maxSegmentPts=e.pts:t.maxSegmentPts=Math.max(t.maxSegmentPts,e.pts)),"number"==typeof e.dts&&(void 0===t.timelineStartInfo.dts&&(t.timelineStartInfo.dts=e.dts),void 0===t.minSegmentDts?t.minSegmentDts=e.dts:t.minSegmentDts=Math.min(t.minSegmentDts,e.dts),void 0===t.maxSegmentDts?t.maxSegmentDts=e.dts:t.maxSegmentDts=Math.max(t.maxSegmentDts,e.dts))},it=function(t){for(var e=0,i={payloadType:-1,payloadSize:0},n=0,r=0;e<t.byteLength&&128!==t[e];){for(;255===t[e];)n+=255,e++;for(n+=t[e++];255===t[e];)r+=255,e++;if(r+=t[e++],!i.payload&&4===n){i.payloadType=n,i.payloadSize=r,i.payload=t.subarray(e,e+r);break}e+=r,r=n=0}return i},nt=function(t){return 181!==t.payload[0]?null:49!=(t.payload[1]<<8|t.payload[2])?null:"GA94"!==String.fromCharCode(t.payload[3],t.payload[4],t.payload[5],t.payload[6])?null:3!==t.payload[7]?null:t.payload.subarray(8,t.payload.length-1)},rt=function(t,e){var i,n,r,a,s=[];if(!(64&e[0]))return s;for(n=31&e[0],i=0;i<n;i++)a={type:3&e[2+(r=3*i)],pts:t},4&e[r+2]&&(a.ccData=e[r+3]<<8|e[r+4],s.push(a));return s},at=function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},st=4,ot=function t(){t.prototype.init.call(this),this.captionPackets_=[],this.ccStreams_=[new dt(0,0),new dt(0,1),new dt(1,0),new dt(1,1)],this.reset(),this.ccStreams_.forEach(function(t){t.on("data",this.trigger.bind(this,"data")),t.on("done",this.trigger.bind(this,"done"))},this)};(ot.prototype=new X).push=function(t){var e,i,n;if("sei_rbsp"===t.nalUnitType&&(e=it(t.escapedRBSP)).payloadType===st&&(i=nt(e)))if(t.dts<this.latestDts_)this.ignoreNextEqualDts_=!0;else{if(t.dts===this.latestDts_&&this.ignoreNextEqualDts_)return this.numSameDts_--,void(this.numSameDts_||(this.ignoreNextEqualDts_=!1));n=rt(t.pts,i),this.captionPackets_=this.captionPackets_.concat(n),this.latestDts_!==t.dts&&(this.numSameDts_=0),this.numSameDts_++,this.latestDts_=t.dts}},ot.prototype.flush=function(){this.captionPackets_.length?(this.captionPackets_.forEach(function(t,e){t.presortIndex=e}),this.captionPackets_.sort(function(t,e){return t.pts===e.pts?t.presortIndex-e.presortIndex:t.pts-e.pts}),this.captionPackets_.forEach(function(t){t.type<2&&this.dispatchCea608Packet(t)},this),this.captionPackets_.length=0,this.ccStreams_.forEach(function(t){t.flush()},this)):this.ccStreams_.forEach(function(t){t.flush()},this)},ot.prototype.reset=function(){this.latestDts_=null,this.ignoreNextEqualDts_=!1,this.numSameDts_=0,this.activeCea608Channel_=[null,null],this.ccStreams_.forEach(function(t){t.reset()})},ot.prototype.dispatchCea608Packet=function(t){this.setsChannel1Active(t)?this.activeCea608Channel_[t.type]=0:this.setsChannel2Active(t)&&(this.activeCea608Channel_[t.type]=1),null!==this.activeCea608Channel_[t.type]&&this.ccStreams_[(t.type<<1)+this.activeCea608Channel_[t.type]].push(t)},ot.prototype.setsChannel1Active=function(t){return 4096==(30720&t.ccData)},ot.prototype.setsChannel2Active=function(t){return 6144==(30720&t.ccData)};var ut={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,304:174,305:176,306:189,307:191,308:8482,309:162,310:163,311:9834,312:224,313:160,314:232,315:226,316:234,317:238,318:244,319:251,544:193,545:201,546:211,547:218,548:220,549:252,550:8216,551:161,552:42,553:39,554:8212,555:169,556:8480,557:8226,558:8220,559:8221,560:192,561:194,562:199,563:200,564:202,565:203,566:235,567:206,568:207,569:239,570:212,571:217,572:249,573:219,574:171,575:187,800:195,801:227,802:205,803:204,804:236,805:210,806:242,807:213,808:245,809:123,810:125,811:92,812:94,813:95,814:124,815:126,816:196,817:228,818:214,819:246,820:223,821:165,822:164,823:9474,824:197,825:229,826:216,827:248,828:9484,829:9488,830:9492,831:9496},lt=function(t){return null===t?"":(t=ut[t]||t,String.fromCharCode(t))},ct=[4352,4384,4608,4640,5376,5408,5632,5664,5888,5920,4096,4864,4896,5120,5152],ht=function(){for(var t=[],e=15;e--;)t.push("");return t},dt=function t(e,i){t.prototype.init.call(this),this.field_=e||0,this.dataChannel_=i||0,this.name_="CC"+(1+(this.field_<<1|this.dataChannel_)),this.setConstants(),this.reset(),this.push=function(t){var e,i,n,r,a;if((e=32639&t.ccData)!==this.lastControlCode_){if(4096==(61440&e)?this.lastControlCode_=e:e!==this.PADDING_&&(this.lastControlCode_=null),n=e>>>8,r=255&e,e!==this.PADDING_)if(e===this.RESUME_CAPTION_LOADING_)this.mode_="popOn";else if(e===this.END_OF_CAPTION_)this.mode_="popOn",this.clearFormatting(t.pts),this.flushDisplayed(t.pts),i=this.displayed_,this.displayed_=this.nonDisplayed_,this.nonDisplayed_=i,this.startPts_=t.pts;else if(e===this.ROLL_UP_2_ROWS_)this.rollUpRows_=2,this.setRollUp(t.pts);else if(e===this.ROLL_UP_3_ROWS_)this.rollUpRows_=3,this.setRollUp(t.pts);else if(e===this.ROLL_UP_4_ROWS_)this.rollUpRows_=4,this.setRollUp(t.pts);else if(e===this.CARRIAGE_RETURN_)this.clearFormatting(t.pts),this.flushDisplayed(t.pts),this.shiftRowsUp_(),this.startPts_=t.pts;else if(e===this.BACKSPACE_)"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1);else if(e===this.ERASE_DISPLAYED_MEMORY_)this.flushDisplayed(t.pts),this.displayed_=ht();else if(e===this.ERASE_NON_DISPLAYED_MEMORY_)this.nonDisplayed_=ht();else if(e===this.RESUME_DIRECT_CAPTIONING_)"paintOn"!==this.mode_&&(this.flushDisplayed(t.pts),this.displayed_=ht()),this.mode_="paintOn",this.startPts_=t.pts;else if(this.isSpecialCharacter(n,r))a=lt((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isExtCharacter(n,r))"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1),a=lt((n=(3&n)<<8)|r),this[this.mode_](t.pts,a),this.column_++;else if(this.isMidRowCode(n,r))this.clearFormatting(t.pts),this[this.mode_](t.pts," "),this.column_++,14==(14&r)&&this.addFormatting(t.pts,["i"]),1==(1&r)&&this.addFormatting(t.pts,["u"]);else if(this.isOffsetControlCode(n,r))this.column_+=3&r;else if(this.isPAC(n,r)){var s=ct.indexOf(7968&e);"rollUp"===this.mode_&&this.setRollUp(t.pts,s),s!==this.row_&&(this.clearFormatting(t.pts),this.row_=s),1&r&&-1===this.formatting_.indexOf("u")&&this.addFormatting(t.pts,["u"]),16==(16&e)&&(this.column_=4*((14&e)>>1)),this.isColorPAC(r)&&14==(14&r)&&this.addFormatting(t.pts,["i"])}else this.isNormalChar(n)&&(0===r&&(r=null),a=lt(n),a+=lt(r),this[this.mode_](t.pts,a),this.column_+=a.length)}else this.lastControlCode_=null}};dt.prototype=new X,dt.prototype.flushDisplayed=function(t){var e=this.displayed_.map(function(t){return t.trim()}).join("\n").replace(/^\n+|\n+$/g,"");e.length&&this.trigger("data",{startPts:this.startPts_,endPts:t,text:e,stream:this.name_})},dt.prototype.reset=function(){this.mode_="popOn",this.topRow_=0,this.startPts_=0,this.displayed_=ht(),this.nonDisplayed_=ht(),this.lastControlCode_=null,this.column_=0,this.row_=14,this.rollUpRows_=2,this.formatting_=[]},dt.prototype.setConstants=function(){0===this.dataChannel_?(this.BASE_=16,this.EXT_=17,this.CONTROL_=(20|this.field_)<<8,this.OFFSET_=23):1===this.dataChannel_&&(this.BASE_=24,this.EXT_=25,this.CONTROL_=(28|this.field_)<<8,this.OFFSET_=31),this.PADDING_=0,this.RESUME_CAPTION_LOADING_=32|this.CONTROL_,this.END_OF_CAPTION_=47|this.CONTROL_,this.ROLL_UP_2_ROWS_=37|this.CONTROL_,this.ROLL_UP_3_ROWS_=38|this.CONTROL_,this.ROLL_UP_4_ROWS_=39|this.CONTROL_,this.CARRIAGE_RETURN_=45|this.CONTROL_,this.RESUME_DIRECT_CAPTIONING_=41|this.CONTROL_,this.BACKSPACE_=33|this.CONTROL_,this.ERASE_DISPLAYED_MEMORY_=44|this.CONTROL_,this.ERASE_NON_DISPLAYED_MEMORY_=46|this.CONTROL_},dt.prototype.isSpecialCharacter=function(t,e){return t===this.EXT_&&48<=e&&e<=63},dt.prototype.isExtCharacter=function(t,e){return(t===this.EXT_+1||t===this.EXT_+2)&&32<=e&&e<=63},dt.prototype.isMidRowCode=function(t,e){return t===this.EXT_&&32<=e&&e<=47},dt.prototype.isOffsetControlCode=function(t,e){return t===this.OFFSET_&&33<=e&&e<=35},dt.prototype.isPAC=function(t,e){return t>=this.BASE_&&t<this.BASE_+8&&64<=e&&e<=127},dt.prototype.isColorPAC=function(t){return 64<=t&&t<=79||96<=t&&t<=127},dt.prototype.isNormalChar=function(t){return 32<=t&&t<=127},dt.prototype.setRollUp=function(t,e){if("rollUp"!==this.mode_&&(this.row_=14,this.mode_="rollUp",this.flushDisplayed(t),this.nonDisplayed_=ht(),this.displayed_=ht()),void 0!==e&&e!==this.row_)for(var i=0;i<this.rollUpRows_;i++)this.displayed_[e-i]=this.displayed_[this.row_-i],this.displayed_[this.row_-i]="";void 0===e&&(e=this.row_),this.topRow_=e-this.rollUpRows_+1},dt.prototype.addFormatting=function(t,e){this.formatting_=this.formatting_.concat(e);var i=e.reduce(function(t,e){return t+"<"+e+">"},"");this[this.mode_](t,i)},dt.prototype.clearFormatting=function(t){if(this.formatting_.length){var e=this.formatting_.reverse().reduce(function(t,e){return t+"</"+e+">"},"");this.formatting_=[],this[this.mode_](t,e)}},dt.prototype.popOn=function(t,e){var i=this.nonDisplayed_[this.row_];i+=e,this.nonDisplayed_[this.row_]=i},dt.prototype.rollUp=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i},dt.prototype.shiftRowsUp_=function(){var t;for(t=0;t<this.topRow_;t++)this.displayed_[t]="";for(t=this.row_+1;t<15;t++)this.displayed_[t]="";for(t=this.topRow_;t<this.row_;t++)this.displayed_[t]=this.displayed_[t+1];this.displayed_[this.row_]=""},dt.prototype.paintOn=function(t,e){var i=this.displayed_[this.row_];i+=e,this.displayed_[this.row_]=i};var pt={CaptionStream:ot,Cea608Stream:dt},ft={H264_STREAM_TYPE:27,ADTS_STREAM_TYPE:15,METADATA_STREAM_TYPE:21},mt=function(t,e){var i=1;for(e<t&&(i=-1);4294967296<Math.abs(e-t);)t+=8589934592*i;return t},gt=function t(e){var i,n;t.prototype.init.call(this),this.type_=e,this.push=function(t){t.type===this.type_&&(void 0===n&&(n=t.dts),t.dts=mt(t.dts,n),t.pts=mt(t.pts,n),i=t.dts,this.trigger("data",t))},this.flush=function(){n=i,this.trigger("done")},this.discontinuity=function(){i=n=void 0}};gt.prototype=new X;var yt,vt=gt,_t=function(t,e,i){var n,r="";for(n=e;n<i;n++)r+="%"+("00"+t[n].toString(16)).slice(-2);return r},bt=function(t,e,i){return decodeURIComponent(_t(t,e,i))},Tt=function(t){return t[0]<<21|t[1]<<14|t[2]<<7|t[3]},St={TXXX:function(t){var e;if(3===t.data[0]){for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=bt(t.data,1,e),t.value=bt(t.data,e+1,t.data.length).replace(/\0*$/,"");break}t.data=t.value}},WXXX:function(t){var e;if(3===t.data[0])for(e=1;e<t.data.length;e++)if(0===t.data[e]){t.description=bt(t.data,1,e),t.url=bt(t.data,e+1,t.data.length);break}},PRIV:function(t){var e,i;for(e=0;e<t.data.length;e++)if(0===t.data[e]){t.owner=(i=t.data,unescape(_t(i,0,e)));break}t.privateData=t.data.subarray(e+1),t.data=t.privateData}};(yt=function(t){var e,u={debug:!(!t||!t.debug),descriptor:t&&t.descriptor},l=0,c=[],h=0;if(yt.prototype.init.call(this),this.dispatchType=ft.METADATA_STREAM_TYPE.toString(16),u.descriptor)for(e=0;e<u.descriptor.length;e++)this.dispatchType+=("00"+u.descriptor[e].toString(16)).slice(-2);this.push=function(t){var e,i,n,r,a;if("timed-metadata"===t.type)if(t.dataAlignmentIndicator&&(h=0,c.length=0),0===c.length&&(t.data.length<10||t.data[0]!=="I".charCodeAt(0)||t.data[1]!=="D".charCodeAt(0)||t.data[2]!=="3".charCodeAt(0)))u.debug;else if(c.push(t),h+=t.data.byteLength,1===c.length&&(l=Tt(t.data.subarray(6,10)),l+=10),!(h<l)){for(e={data:new Uint8Array(l),frames:[],pts:c[0].pts,dts:c[0].dts},a=0;a<l;)e.data.set(c[0].data.subarray(0,l-a),a),a+=c[0].data.byteLength,h-=c[0].data.byteLength,c.shift();i=10,64&e.data[5]&&(i+=4,i+=Tt(e.data.subarray(10,14)),l-=Tt(e.data.subarray(16,20)));do{if((n=Tt(e.data.subarray(i+4,i+8)))<1)return;if((r={id:String.fromCharCode(e.data[i],e.data[i+1],e.data[i+2],e.data[i+3]),data:e.data.subarray(i+10,i+n+10)}).key=r.id,St[r.id]&&(St[r.id](r),"com.apple.streaming.transportStreamTimestamp"===r.owner)){var s=r.data,o=(1&s[3])<<30|s[4]<<22|s[5]<<14|s[6]<<6|s[7]>>>2;o*=4,o+=3&s[7],r.timeStamp=o,void 0===e.pts&&void 0===e.dts&&(e.pts=r.timeStamp,e.dts=r.timeStamp),this.trigger("timestamp",r)}e.frames.push(r),i+=10,i+=n}while(i<l);this.trigger("data",e)}}}).prototype=new X;var kt,Ct,wt,Et=yt,At=vt;(kt=function(){var r=new Uint8Array(188),a=0;kt.prototype.init.call(this),this.push=function(t){var e,i=0,n=188;for(a?((e=new Uint8Array(t.byteLength+a)).set(r.subarray(0,a)),e.set(t,a),a=0):e=t;n<e.byteLength;)71!==e[i]||71!==e[n]?(i++,n++):(this.trigger("data",e.subarray(i,n)),i+=188,n+=188);i<e.byteLength&&(r.set(e.subarray(i),0),a=e.byteLength-i)},this.flush=function(){188===a&&71===r[0]&&(this.trigger("data",r),a=0),this.trigger("done")}}).prototype=new X,(Ct=function(){var n,r,a,s;Ct.prototype.init.call(this),(s=this).packetsWaitingForPmt=[],this.programMapTable=void 0,n=function(t,e){var i=0;e.payloadUnitStartIndicator&&(i+=t[i]+1),"pat"===e.type?r(t.subarray(i),e):a(t.subarray(i),e)},r=function(t,e){e.section_number=t[7],e.last_section_number=t[8],s.pmtPid=(31&t[10])<<8|t[11],e.pmtPid=s.pmtPid},a=function(t,e){var i,n;if(1&t[5]){for(s.programMapTable={video:null,audio:null,"timed-metadata":{}},i=3+((15&t[1])<<8|t[2])-4,n=12+((15&t[10])<<8|t[11]);n<i;){var r=t[n],a=(31&t[n+1])<<8|t[n+2];r===ft.H264_STREAM_TYPE&&null===s.programMapTable.video?s.programMapTable.video=a:r===ft.ADTS_STREAM_TYPE&&null===s.programMapTable.audio?s.programMapTable.audio=a:r===ft.METADATA_STREAM_TYPE&&(s.programMapTable["timed-metadata"][a]=r),n+=5+((15&t[n+3])<<8|t[n+4])}e.programMapTable=s.programMapTable}},this.push=function(t){var e={},i=4;if(e.payloadUnitStartIndicator=!!(64&t[1]),e.pid=31&t[1],e.pid<<=8,e.pid|=t[2],1<(48&t[3])>>>4&&(i+=t[i]+1),0===e.pid)e.type="pat",n(t.subarray(i),e),this.trigger("data",e);else if(e.pid===this.pmtPid)for(e.type="pmt",n(t.subarray(i),e),this.trigger("data",e);this.packetsWaitingForPmt.length;)this.processPes_.apply(this,this.packetsWaitingForPmt.shift());else void 0===this.programMapTable?this.packetsWaitingForPmt.push([t,i,e]):this.processPes_(t,i,e)},this.processPes_=function(t,e,i){i.pid===this.programMapTable.video?i.streamType=ft.H264_STREAM_TYPE:i.pid===this.programMapTable.audio?i.streamType=ft.ADTS_STREAM_TYPE:i.streamType=this.programMapTable["timed-metadata"][i.pid],i.type="pes",i.data=t.subarray(e),this.trigger("data",i)}}).prototype=new X,Ct.STREAM_TYPES={h264:27,adts:15},(wt=function(){var d=this,n={data:[],size:0},r={data:[],size:0},a={data:[],size:0},s=function(t,e,i){var n,r,a=new Uint8Array(t.size),s={type:e},o=0,u=0;if(t.data.length&&!(t.size<9)){for(s.trackId=t.data[0].pid,o=0;o<t.data.length;o++)r=t.data[o],a.set(r.data,u),u+=r.data.byteLength;var l,c,h;l=a,(c=s).packetLength=6+(l[4]<<8|l[5]),c.dataAlignmentIndicator=0!=(4&l[6]),192&(h=l[7])&&(c.pts=(14&l[9])<<27|(255&l[10])<<20|(254&l[11])<<12|(255&l[12])<<5|(254&l[13])>>>3,c.pts*=4,c.pts+=(6&l[13])>>>1,c.dts=c.pts,64&h&&(c.dts=(14&l[14])<<27|(255&l[15])<<20|(254&l[16])<<12|(255&l[17])<<5|(254&l[18])>>>3,c.dts*=4,c.dts+=(6&l[18])>>>1)),c.data=l.subarray(9+l[8]),n="video"===e||s.packetLength<=t.size,(i||n)&&(t.size=0,t.data.length=0),n&&d.trigger("data",s)}};wt.prototype.init.call(this),this.push=function(i){({pat:function(){},pes:function(){var t,e;switch(i.streamType){case ft.H264_STREAM_TYPE:case ft.H264_STREAM_TYPE:t=n,e="video";break;case ft.ADTS_STREAM_TYPE:t=r,e="audio";break;case ft.METADATA_STREAM_TYPE:t=a,e="timed-metadata";break;default:return}i.payloadUnitStartIndicator&&s(t,e,!0),t.data.push(i),t.size+=i.data.byteLength},pmt:function(){var t={type:"metadata",tracks:[]},e=i.programMapTable;null!==e.video&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.video,codec:"avc",type:"video"}),null!==e.audio&&t.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+e.audio,codec:"adts",type:"audio"}),d.trigger("data",t)}})[i.type]()},this.flush=function(){s(n,"video"),s(r,"audio"),s(a,"timed-metadata"),this.trigger("done")}}).prototype=new X;var Lt={PAT_PID:0,MP2T_PACKET_LENGTH:188,TransportPacketStream:kt,TransportParseStream:Ct,ElementaryStream:wt,TimestampRolloverStream:At,CaptionStream:pt.CaptionStream,Cea608Stream:pt.Cea608Stream,MetadataStream:Et};for(var Ot in ft)ft.hasOwnProperty(Ot)&&(Lt[Ot]=ft[Ot]);var Pt,Ut=Lt,xt=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];(Pt=function(){var l;Pt.prototype.init.call(this),this.push=function(t){var e,i,n,r,a,s,o=0,u=0;if("audio"===t.type)for(l?(r=l,(l=new Uint8Array(r.byteLength+t.data.byteLength)).set(r),l.set(t.data,r.byteLength)):l=t.data;o+5<l.length;)if(255===l[o]&&240==(246&l[o+1])){if(i=2*(1&~l[o+1]),e=(3&l[o+3])<<11|l[o+4]<<3|(224&l[o+5])>>5,s=9e4*(a=1024*(1+(3&l[o+6])))/xt[(60&l[o+2])>>>2],n=o+e,l.byteLength<n)return;if(this.trigger("data",{pts:t.pts+u*s,dts:t.dts+u*s,sampleCount:a,audioobjecttype:1+(l[o+2]>>>6&3),channelcount:(1&l[o+2])<<2|(192&l[o+3])>>>6,samplerate:xt[(60&l[o+2])>>>2],samplingfrequencyindex:(60&l[o+2])>>>2,samplesize:16,data:l.subarray(o+7+i,n)}),l.byteLength===n)return void(l=void 0);u++,l=l.subarray(n)}else o++},this.flush=function(){this.trigger("done")}}).prototype=new X;var It,Dt,Rt,Mt=Pt,Bt=function(n){var r=n.byteLength,a=0,s=0;this.length=function(){return 8*r},this.bitsAvailable=function(){return 8*r+s},this.loadWord=function(){var t=n.byteLength-r,e=new Uint8Array(4),i=Math.min(4,r);if(0===i)throw new Error("no bytes available");e.set(n.subarray(t,t+i)),a=new DataView(e.buffer).getUint32(0),s=8*i,r-=i},this.skipBits=function(t){var e;t<s||(t-=s,t-=8*(e=Math.floor(t/8)),r-=e,this.loadWord()),a<<=t,s-=t},this.readBits=function(t){var e=Math.min(s,t),i=a>>>32-e;return 0<(s-=e)?a<<=e:0<r&&this.loadWord(),0<(e=t-e)?i<<e|this.readBits(e):i},this.skipLeadingZeros=function(){var t;for(t=0;t<s;++t)if(0!=(a&2147483648>>>t))return a<<=t,s-=t,t;return this.loadWord(),t+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var t=this.skipLeadingZeros();return this.readBits(t+1)-1},this.readExpGolomb=function(){var t=this.readUnsignedExpGolomb();return 1&t?1+t>>>1:-1*(t>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUnsignedByte=function(){return this.readBits(8)},this.loadWord()};(Dt=function(){var i,n,r=0;Dt.prototype.init.call(this),this.push=function(t){var e;for(n?((e=new Uint8Array(n.byteLength+t.data.byteLength)).set(n),e.set(t.data,n.byteLength),n=e):n=t.data;r<n.byteLength-3;r++)if(1===n[r+2]){i=r+5;break}for(;i<n.byteLength;)switch(n[i]){case 0:if(0!==n[i-1]){i+=2;break}if(0!==n[i-2]){i++;break}for(r+3!==i-2&&this.trigger("data",n.subarray(r+3,i-2));1!==n[++i]&&i<n.length;);r=i-2,i+=3;break;case 1:if(0!==n[i-1]||0!==n[i-2]){i+=3;break}this.trigger("data",n.subarray(r+3,i-2)),r=i-2,i+=3;break;default:i+=3}n=n.subarray(r),i-=r,r=0},this.flush=function(){n&&3<n.byteLength&&this.trigger("data",n.subarray(r+3)),n=null,r=0,this.trigger("done")}}).prototype=new X,Rt={100:!0,110:!0,122:!0,244:!0,44:!0,83:!0,86:!0,118:!0,128:!0,138:!0,139:!0,134:!0},(It=function(){var i,n,r,a,s,o,_,e=new Dt;It.prototype.init.call(this),(i=this).push=function(t){"video"===t.type&&(n=t.trackId,r=t.pts,a=t.dts,e.push(t))},e.on("data",function(t){var e={trackId:n,pts:r,dts:a,data:t};switch(31&t[0]){case 5:e.nalUnitType="slice_layer_without_partitioning_rbsp_idr";break;case 6:e.nalUnitType="sei_rbsp",e.escapedRBSP=s(t.subarray(1));break;case 7:e.nalUnitType="seq_parameter_set_rbsp",e.escapedRBSP=s(t.subarray(1)),e.config=o(e.escapedRBSP);break;case 8:e.nalUnitType="pic_parameter_set_rbsp";break;case 9:e.nalUnitType="access_unit_delimiter_rbsp"}i.trigger("data",e)}),e.on("done",function(){i.trigger("done")}),this.flush=function(){e.flush()},_=function(t,e){var i,n=8,r=8;for(i=0;i<t;i++)0!==r&&(r=(n+e.readExpGolomb()+256)%256),n=0===r?n:r},s=function(t){for(var e,i,n=t.byteLength,r=[],a=1;a<n-2;)0===t[a]&&0===t[a+1]&&3===t[a+2]?(r.push(a+2),a+=2):a++;if(0===r.length)return t;e=n-r.length,i=new Uint8Array(e);var s=0;for(a=0;a<e;s++,a++)s===r[0]&&(s++,r.shift()),i[a]=t[s];return i},o=function(t){var e,i,n,r,a,s,o,u,l,c,h,d,p,f=0,m=0,g=0,y=0,v=1;if(i=(e=new Bt(t)).readUnsignedByte(),r=e.readUnsignedByte(),n=e.readUnsignedByte(),e.skipUnsignedExpGolomb(),Rt[i]&&(3===(a=e.readUnsignedExpGolomb())&&e.skipBits(1),e.skipUnsignedExpGolomb(),e.skipUnsignedExpGolomb(),e.skipBits(1),e.readBoolean()))for(h=3!==a?8:12,p=0;p<h;p++)e.readBoolean()&&_(p<6?16:64,e);if(e.skipUnsignedExpGolomb(),0===(s=e.readUnsignedExpGolomb()))e.readUnsignedExpGolomb();else if(1===s)for(e.skipBits(1),e.skipExpGolomb(),e.skipExpGolomb(),o=e.readUnsignedExpGolomb(),p=0;p<o;p++)e.skipExpGolomb();if(e.skipUnsignedExpGolomb(),e.skipBits(1),u=e.readUnsignedExpGolomb(),l=e.readUnsignedExpGolomb(),0===(c=e.readBits(1))&&e.skipBits(1),e.skipBits(1),e.readBoolean()&&(f=e.readUnsignedExpGolomb(),m=e.readUnsignedExpGolomb(),g=e.readUnsignedExpGolomb(),y=e.readUnsignedExpGolomb()),e.readBoolean()&&e.readBoolean()){switch(e.readUnsignedByte()){case 1:d=[1,1];break;case 2:d=[12,11];break;case 3:d=[10,11];break;case 4:d=[16,11];break;case 5:d=[40,33];break;case 6:d=[24,11];break;case 7:d=[20,11];break;case 8:d=[32,11];break;case 9:d=[80,33];break;case 10:d=[18,11];break;case 11:d=[15,11];break;case 12:d=[64,33];break;case 13:d=[160,99];break;case 14:d=[4,3];break;case 15:d=[3,2];break;case 16:d=[2,1];break;case 255:d=[e.readUnsignedByte()<<8|e.readUnsignedByte(),e.readUnsignedByte()<<8|e.readUnsignedByte()]}d&&(v=d[0]/d[1])}return{profileIdc:i,levelIdc:n,profileCompatibility:r,width:Math.ceil((16*(u+1)-2*f-2*m)*v),height:(2-c)*(l+1)*16-2*g-2*y}}}).prototype=new X;var Nt,jt={H264Stream:It,NalByteStream:Dt};(Nt=function(){var o=new Uint8Array,u=0;Nt.prototype.init.call(this),this.setTimestamp=function(t){u=t},this.parseId3TagSize=function(t,e){var i=t[e+6]<<21|t[e+7]<<14|t[e+8]<<7|t[e+9];return(16&t[e+5])>>4?i+20:i+10},this.parseAdtsSize=function(t,e){var i=(224&t[e+5])>>5,n=t[e+4]<<3;return 6144&t[e+3]|n|i},this.push=function(t){var e,i,n,r,a=0,s=0;for(o.length?(r=o.length,(o=new Uint8Array(t.byteLength+r)).set(o.subarray(0,r)),o.set(t,r)):o=t;3<=o.length-s;)if(o[s]!=="I".charCodeAt(0)||o[s+1]!=="D".charCodeAt(0)||o[s+2]!=="3".charCodeAt(0))if(!0&o[s]&&240==(240&o[s+1])){if(o.length-s<7)break;if((a=this.parseAdtsSize(o,s))>o.length)break;n={type:"audio",data:o.subarray(s,s+a),pts:u,dts:u},this.trigger("data",n),s+=a}else s++;else{if(o.length-s<10)break;if((a=this.parseId3TagSize(o,s))>o.length)break;i={type:"timed-metadata",data:o.subarray(s,s+a)},this.trigger("data",i),s+=a}e=o.length-s,o=0<e?o.subarray(s):new Uint8Array}}).prototype=new X;var Ft,Vt,Ht,zt,qt,Wt,Gt,Xt,Yt,$t,Kt,Jt,Qt=Nt,Zt=[33,16,5,32,164,27],te=[33,65,108,84,1,2,4,8,168,2,4,8,17,191,252],ee=function(t){for(var e=[];t--;)e.push(0);return e},ie={96000:[Zt,[227,64],ee(154),[56]],88200:[Zt,[231],ee(170),[56]],64000:[Zt,[248,192],ee(240),[56]],48000:[Zt,[255,192],ee(268),[55,148,128],ee(54),[112]],44100:[Zt,[255,192],ee(268),[55,163,128],ee(84),[112]],32000:[Zt,[255,192],ee(268),[55,234],ee(226),[112]],24000:[Zt,[255,192],ee(268),[55,255,128],ee(268),[111,112],ee(126),[224]],16000:[Zt,[255,192],ee(268),[55,255,128],ee(268),[111,255],ee(269),[223,108],ee(195),[1,192]],12000:[te,ee(268),[3,127,248],ee(268),[6,255,240],ee(268),[13,255,224],ee(268),[27,253,128],ee(259),[56]],11025:[te,ee(268),[3,127,248],ee(268),[6,255,240],ee(268),[13,255,224],ee(268),[27,255,192],ee(268),[55,175,128],ee(108),[112]],8000:[te,ee(268),[3,121,16],ee(47),[7]]},ne=(Ft=ie,Object.keys(Ft).reduce(function(t,e){return t[e]=new Uint8Array(Ft[e].reduce(function(t,e){return t.concat(e)},[])),t},{})),re=(Vt=function(t){return 9e4*t},Ht=function(t,e){return t*e},zt=function(t){return t/9e4},qt=function(t,e){return t/e},function(t,e){return Vt(qt(t,e))}),ae=function(t,e){return Ht(zt(t),e)},se=jt.H264Stream,oe=["audioobjecttype","channelcount","samplerate","samplingfrequencyindex","samplesize"],ue=["width","height","profileIdc","levelIdc","profileCompatibility"];$t=function(t){return t[0]==="I".charCodeAt(0)&&t[1]==="D".charCodeAt(0)&&t[2]==="3".charCodeAt(0)},Kt=function(t,e){var i;if(t.length!==e.length)return!1;for(i=0;i<t.length;i++)if(t[i]!==e[i])return!1;return!0},Jt=function(t){var e,i=0;for(e=0;e<t.length;e++)i+=t[e].data.byteLength;return i},(Gt=function(r,a){var s=[],o=0,e=0,l=0,c=1/0;a=a||{},Gt.prototype.init.call(this),this.push=function(e){et(r,e),r&&oe.forEach(function(t){r[t]=e[t]}),s.push(e)},this.setEarliestDts=function(t){e=t-r.timelineStartInfo.baseMediaDecodeTime},this.setVideoBaseMediaDecodeTime=function(t){c=t},this.setAudioAppendStart=function(t){l=t},this.flush=function(){var t,e,i,n;0!==s.length&&(t=this.trimAdtsFramesByEarliestDts_(s),r.baseMediaDecodeTime=tt(r,a.keepOriginalTimestamps),this.prefixWithSilence_(r,t),r.samples=this.generateSampleTable_(t),i=z.mdat(this.concatenateFrameData_(t)),s=[],e=z.moof(o,[r]),n=new Uint8Array(e.byteLength+i.byteLength),o++,n.set(e),n.set(i,e.byteLength),Z(r),this.trigger("data",{track:r,boxes:n})),this.trigger("done","AudioSegmentStream")},this.prefixWithSilence_=function(t,e){var i,n,r,a,s=0,o=0,u=0;if(e.length&&(i=re(t.baseMediaDecodeTime,t.samplerate),n=Math.ceil(9e4/(t.samplerate/1024)),l&&c&&(s=i-Math.max(l,c),u=(o=Math.floor(s/n))*n),!(o<1||45e3<u))){for((r=ne[t.samplerate])||(r=e[0].data),a=0;a<o;a++)e.splice(a,0,{data:r});t.baseMediaDecodeTime-=Math.floor(ae(u,t.samplerate))}},this.trimAdtsFramesByEarliestDts_=function(t){return r.minSegmentDts>=e?t:(r.minSegmentDts=1/0,t.filter(function(t){return t.dts>=e&&(r.minSegmentDts=Math.min(r.minSegmentDts,t.dts),r.minSegmentPts=r.minSegmentDts,!0)}))},this.generateSampleTable_=function(t){var e,i,n=[];for(e=0;e<t.length;e++)i=t[e],n.push({size:i.data.byteLength,duration:1024});return n},this.concatenateFrameData_=function(t){var e,i,n=0,r=new Uint8Array(Jt(t));for(e=0;e<t.length;e++)i=t[e],r.set(i.data,n),n+=i.data.byteLength;return r}}).prototype=new X,(Wt=function(o,u){var e,i,l=0,c=[],h=[];u=u||{},Wt.prototype.init.call(this),delete o.minPTS,this.gopCache_=[],this.push=function(t){et(o,t),"seq_parameter_set_rbsp"!==t.nalUnitType||e||(e=t.config,o.sps=[t.data],ue.forEach(function(t){o[t]=e[t]},this)),"pic_parameter_set_rbsp"!==t.nalUnitType||i||(i=t.data,o.pps=[t.data]),c.push(t)},this.flush=function(){for(var t,e,i,n,r,a;c.length&&"access_unit_delimiter_rbsp"!==c[0].nalUnitType;)c.shift();if(0===c.length)return this.resetStream_(),void this.trigger("done","VideoSegmentStream");if(t=Y(c),(i=$(t))[0][0].keyFrame||((e=this.getGopForFusion_(c[0],o))?(i.unshift(e),i.byteLength+=e.byteLength,i.nalCount+=e.nalCount,i.pts=e.pts,i.dts=e.dts,i.duration+=e.duration):i=K(i)),h.length){var s;if(!(s=u.alignGopsAtEnd?this.alignGopsAtEnd_(i):this.alignGopsAtStart_(i)))return this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.resetStream_(),void this.trigger("done","VideoSegmentStream");Z(o),i=s}et(o,i),o.samples=J(i),r=z.mdat(Q(i)),o.baseMediaDecodeTime=tt(o,u.keepOriginalTimestamps),this.trigger("processedGopsInfo",i.map(function(t){return{pts:t.pts,dts:t.dts,byteLength:t.byteLength}})),this.gopCache_.unshift({gop:i.pop(),pps:o.pps,sps:o.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),c=[],this.trigger("baseMediaDecodeTime",o.baseMediaDecodeTime),this.trigger("timelineStartInfo",o.timelineStartInfo),n=z.moof(l,[o]),a=new Uint8Array(n.byteLength+r.byteLength),l++,a.set(n),a.set(r,n.byteLength),this.trigger("data",{track:o,boxes:a}),this.resetStream_(),this.trigger("done","VideoSegmentStream")},this.resetStream_=function(){Z(o),i=e=void 0},this.getGopForFusion_=function(t){var e,i,n,r,a,s=1/0;for(a=0;a<this.gopCache_.length;a++)n=(r=this.gopCache_[a]).gop,o.pps&&Kt(o.pps[0],r.pps[0])&&o.sps&&Kt(o.sps[0],r.sps[0])&&(n.dts<o.timelineStartInfo.dts||-1e4<=(e=t.dts-n.dts-n.duration)&&e<=45e3&&(!i||e<s)&&(i=r,s=e));return i?i.gop:null},this.alignGopsAtStart_=function(t){var e,i,n,r,a,s,o,u;for(a=t.byteLength,s=t.nalCount,o=t.duration,e=i=0;e<h.length&&i<t.length&&(n=h[e],r=t[i],n.pts!==r.pts);)r.pts>n.pts?e++:(i++,a-=r.byteLength,s-=r.nalCount,o-=r.duration);return 0===i?t:i===t.length?null:((u=t.slice(i)).byteLength=a,u.duration=o,u.nalCount=s,u.pts=u[0].pts,u.dts=u[0].dts,u)},this.alignGopsAtEnd_=function(t){var e,i,n,r,a,s,o;for(e=h.length-1,i=t.length-1,a=null,s=!1;0<=e&&0<=i;){if(n=h[e],r=t[i],n.pts===r.pts){s=!0;break}n.pts>r.pts?e--:(e===h.length-1&&(a=i),i--)}if(!s&&null===a)return null;if(0===(o=s?i:a))return t;var u=t.slice(o),l=u.reduce(function(t,e){return t.byteLength+=e.byteLength,t.duration+=e.duration,t.nalCount+=e.nalCount,t},{byteLength:0,duration:0,nalCount:0});return u.byteLength=l.byteLength,u.duration=l.duration,u.nalCount=l.nalCount,u.pts=u[0].pts,u.dts=u[0].dts,u},this.alignGopsWith=function(t){h=t}}).prototype=new X,(Yt=function(t,e){this.numberOfTracks=0,this.metadataStream=e,"undefined"!=typeof t.remux?this.remuxTracks=!!t.remux:this.remuxTracks=!0,this.pendingTracks=[],this.videoTrack=null,this.pendingBoxes=[],this.pendingCaptions=[],this.pendingMetadata=[],this.pendingBytes=0,this.emittedTracks=0,Yt.prototype.init.call(this),this.push=function(t){return t.text?this.pendingCaptions.push(t):t.frames?this.pendingMetadata.push(t):(this.pendingTracks.push(t.track),this.pendingBoxes.push(t.boxes),this.pendingBytes+=t.boxes.byteLength,"video"===t.track.type&&(this.videoTrack=t.track),void("audio"===t.track.type&&(this.audioTrack=t.track)))}}).prototype=new X,Yt.prototype.flush=function(t){var e,i,n,r,a=0,s={captions:[],captionStreams:{},metadata:[],info:{}},o=0;if(this.pendingTracks.length<this.numberOfTracks){if("VideoSegmentStream"!==t&&"AudioSegmentStream"!==t)return;if(this.remuxTracks)return;if(0===this.pendingTracks.length)return this.emittedTracks++,void(this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0))}for(this.videoTrack?(o=this.videoTrack.timelineStartInfo.pts,ue.forEach(function(t){s.info[t]=this.videoTrack[t]},this)):this.audioTrack&&(o=this.audioTrack.timelineStartInfo.pts,oe.forEach(function(t){s.info[t]=this.audioTrack[t]},this)),1===this.pendingTracks.length?s.type=this.pendingTracks[0].type:s.type="combined",this.emittedTracks+=this.pendingTracks.length,n=z.initSegment(this.pendingTracks),s.initSegment=new Uint8Array(n.byteLength),s.initSegment.set(n),s.data=new Uint8Array(this.pendingBytes),r=0;r<this.pendingBoxes.length;r++)s.data.set(this.pendingBoxes[r],a),a+=this.pendingBoxes[r].byteLength;for(r=0;r<this.pendingCaptions.length;r++)(e=this.pendingCaptions[r]).startTime=e.startPts-o,e.startTime/=9e4,e.endTime=e.endPts-o,e.endTime/=9e4,s.captionStreams[e.stream]=!0,s.captions.push(e);for(r=0;r<this.pendingMetadata.length;r++)(i=this.pendingMetadata[r]).cueTime=i.pts-o,i.cueTime/=9e4,s.metadata.push(i);s.metadata.dispatchType=this.metadataStream.dispatchType,this.pendingTracks.length=0,this.videoTrack=null,this.pendingBoxes.length=0,this.pendingCaptions.length=0,this.pendingBytes=0,this.pendingMetadata.length=0,this.trigger("data",s),this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0)},(Xt=function(n){var r,a,s=this,i=!0;Xt.prototype.init.call(this),n=n||{},this.baseMediaDecodeTime=n.baseMediaDecodeTime||0,this.transmuxPipeline_={},this.setupAacPipeline=function(){var e={};(this.transmuxPipeline_=e).type="aac",e.metadataStream=new Ut.MetadataStream,e.aacStream=new Qt,e.audioTimestampRolloverStream=new Ut.TimestampRolloverStream("audio"),e.timedMetadataTimestampRolloverStream=new Ut.TimestampRolloverStream("timed-metadata"),e.adtsStream=new Mt,e.coalesceStream=new Yt(n,e.metadataStream),e.headOfPipeline=e.aacStream,e.aacStream.pipe(e.audioTimestampRolloverStream).pipe(e.adtsStream),e.aacStream.pipe(e.timedMetadataTimestampRolloverStream).pipe(e.metadataStream).pipe(e.coalesceStream),e.metadataStream.on("timestamp",function(t){e.aacStream.setTimestamp(t.timeStamp)}),e.aacStream.on("data",function(t){"timed-metadata"!==t.type||e.audioSegmentStream||(a=a||{timelineStartInfo:{baseMediaDecodeTime:s.baseMediaDecodeTime},codec:"adts",type:"audio"},e.coalesceStream.numberOfTracks++,e.audioSegmentStream=new Gt(a,n),e.adtsStream.pipe(e.audioSegmentStream).pipe(e.coalesceStream))}),e.coalesceStream.on("data",this.trigger.bind(this,"data")),e.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setupTsPipeline=function(){var i={};(this.transmuxPipeline_=i).type="ts",i.metadataStream=new Ut.MetadataStream,i.packetStream=new Ut.TransportPacketStream,i.parseStream=new Ut.TransportParseStream,i.elementaryStream=new Ut.ElementaryStream,i.videoTimestampRolloverStream=new Ut.TimestampRolloverStream("video"),i.audioTimestampRolloverStream=new Ut.TimestampRolloverStream("audio"),i.timedMetadataTimestampRolloverStream=new Ut.TimestampRolloverStream("timed-metadata"),i.adtsStream=new Mt,i.h264Stream=new se,i.captionStream=new Ut.CaptionStream,i.coalesceStream=new Yt(n,i.metadataStream),i.headOfPipeline=i.packetStream,i.packetStream.pipe(i.parseStream).pipe(i.elementaryStream),i.elementaryStream.pipe(i.videoTimestampRolloverStream).pipe(i.h264Stream),i.elementaryStream.pipe(i.audioTimestampRolloverStream).pipe(i.adtsStream),i.elementaryStream.pipe(i.timedMetadataTimestampRolloverStream).pipe(i.metadataStream).pipe(i.coalesceStream),i.h264Stream.pipe(i.captionStream).pipe(i.coalesceStream),i.elementaryStream.on("data",function(t){var e;if("metadata"===t.type){for(e=t.tracks.length;e--;)r||"video"!==t.tracks[e].type?a||"audio"!==t.tracks[e].type||((a=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime):(r=t.tracks[e]).timelineStartInfo.baseMediaDecodeTime=s.baseMediaDecodeTime;r&&!i.videoSegmentStream&&(i.coalesceStream.numberOfTracks++,i.videoSegmentStream=new Wt(r,n),i.videoSegmentStream.on("timelineStartInfo",function(t){a&&(a.timelineStartInfo=t,i.audioSegmentStream.setEarliestDts(t.dts))}),i.videoSegmentStream.on("processedGopsInfo",s.trigger.bind(s,"gopInfo")),i.videoSegmentStream.on("baseMediaDecodeTime",function(t){a&&i.audioSegmentStream.setVideoBaseMediaDecodeTime(t)}),i.h264Stream.pipe(i.videoSegmentStream).pipe(i.coalesceStream)),a&&!i.audioSegmentStream&&(i.coalesceStream.numberOfTracks++,i.audioSegmentStream=new Gt(a,n),i.adtsStream.pipe(i.audioSegmentStream).pipe(i.coalesceStream))}}),i.coalesceStream.on("data",this.trigger.bind(this,"data")),i.coalesceStream.on("done",this.trigger.bind(this,"done"))},this.setBaseMediaDecodeTime=function(t){var e=this.transmuxPipeline_;this.baseMediaDecodeTime=t,a&&(a.timelineStartInfo.dts=void 0,a.timelineStartInfo.pts=void 0,Z(a),a.timelineStartInfo.baseMediaDecodeTime=t,e.audioTimestampRolloverStream&&e.audioTimestampRolloverStream.discontinuity()),r&&(e.videoSegmentStream&&(e.videoSegmentStream.gopCache_=[],e.videoTimestampRolloverStream.discontinuity()),r.timelineStartInfo.dts=void 0,r.timelineStartInfo.pts=void 0,Z(r),e.captionStream.reset(),r.timelineStartInfo.baseMediaDecodeTime=t),e.timedMetadataTimestampRolloverStream&&e.timedMetadataTimestampRolloverStream.discontinuity()},this.setAudioAppendStart=function(t){a&&this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(t)},this.alignGopsWith=function(t){r&&this.transmuxPipeline_.videoSegmentStream&&this.transmuxPipeline_.videoSegmentStream.alignGopsWith(t)},this.push=function(t){if(i){var e=$t(t);e&&"aac"!==this.transmuxPipeline_.type?this.setupAacPipeline():e||"ts"===this.transmuxPipeline_.type||this.setupTsPipeline(),i=!1}this.transmuxPipeline_.headOfPipeline.push(t)},this.flush=function(){i=!0,this.transmuxPipeline_.headOfPipeline.flush()},this.resetCaptions=function(){this.transmuxPipeline_.captionStream&&this.transmuxPipeline_.captionStream.reset()}}).prototype=new X;var le,ce,he={Transmuxer:Xt,VideoSegmentStream:Wt,AudioSegmentStream:Gt,AUDIO_PROPERTIES:oe,VIDEO_PROPERTIES:ue},de=W.parseType,pe=function(t){return new Date(1e3*t-20828448e5)},fe=function(t){return{isLeading:(12&t[0])>>>2,dependsOn:3&t[0],isDependedOn:(192&t[1])>>>6,hasRedundancy:(48&t[1])>>>4,paddingValue:(14&t[1])>>>1,isNonSyncSample:1&t[1],degradationPriority:t[2]<<8|t[3]}},me={avc1:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{dataReferenceIndex:e.getUint16(6),width:e.getUint16(24),height:e.getUint16(26),horizresolution:e.getUint16(28)+e.getUint16(30)/16,vertresolution:e.getUint16(32)+e.getUint16(34)/16,frameCount:e.getUint16(40),depth:e.getUint16(74),config:le(t.subarray(78,t.byteLength))}},avcC:function(t){var e,i,n,r,a=new DataView(t.buffer,t.byteOffset,t.byteLength),s={configurationVersion:t[0],avcProfileIndication:t[1],profileCompatibility:t[2],avcLevelIndication:t[3],lengthSizeMinusOne:3&t[4],sps:[],pps:[]},o=31&t[5];for(n=6,r=0;r<o;r++)i=a.getUint16(n),n+=2,s.sps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;for(e=t[n],n++,r=0;r<e;r++)i=a.getUint16(n),n+=2,s.pps.push(new Uint8Array(t.subarray(n,n+i))),n+=i;return s},btrt:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{bufferSizeDB:e.getUint32(0),maxBitrate:e.getUint32(4),avgBitrate:e.getUint32(8)}},esds:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),esId:t[6]<<8|t[7],streamPriority:31&t[8],decoderConfig:{objectProfileIndication:t[11],streamType:t[12]>>>2&63,bufferSize:t[13]<<16|t[14]<<8|t[15],maxBitrate:t[16]<<24|t[17]<<16|t[18]<<8|t[19],avgBitrate:t[20]<<24|t[21]<<16|t[22]<<8|t[23],decoderConfigDescriptor:{tag:t[24],length:t[25],audioObjectType:t[26]>>>3&31,samplingFrequencyIndex:(7&t[26])<<1|t[27]>>>7&1,channelConfiguration:t[27]>>>3&15}}}},ftyp:function(t){for(var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={majorBrand:de(t.subarray(0,4)),minorVersion:e.getUint32(4),compatibleBrands:[]},n=8;n<t.byteLength;)i.compatibleBrands.push(de(t.subarray(n,n+4))),n+=4;return i},dinf:function(t){return{boxes:le(t)}},dref:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),dataReferences:le(t.subarray(8))}},hdlr:function(t){var e={version:new DataView(t.buffer,t.byteOffset,t.byteLength).getUint8(0),flags:new Uint8Array(t.subarray(1,4)),handlerType:de(t.subarray(8,12)),name:""},i=8;for(i=24;i<t.byteLength;i++){if(0===t[i]){i++;break}e.name+=String.fromCharCode(t[i])}return e.name=decodeURIComponent(escape(e.name)),e},mdat:function(t){return{byteLength:t.byteLength,nals:function(t){var e,i,n=new DataView(t.buffer,t.byteOffset,t.byteLength),r=[];for(e=0;e+4<t.length;e+=i)if(i=n.getUint32(e),e+=4,i<=0)r.push("<span style='color:red;'>MALFORMED DATA</span>");else switch(31&t[e]){case 1:r.push("slice_layer_without_partitioning_rbsp");break;case 5:r.push("slice_layer_without_partitioning_rbsp_idr");break;case 6:r.push("sei_rbsp");break;case 7:r.push("seq_parameter_set_rbsp");break;case 8:r.push("pic_parameter_set_rbsp");break;case 9:r.push("access_unit_delimiter_rbsp");break;default:r.push("UNKNOWN NAL - "+t[e]&31)}return r}(t)}},mdhd:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n=4,r={version:i.getUint8(0),flags:new Uint8Array(t.subarray(1,4)),language:""};return 1===r.version?(n+=4,r.creationTime=pe(i.getUint32(n)),n+=8,r.modificationTime=pe(i.getUint32(n)),n+=4,r.timescale=i.getUint32(n),n+=8):(r.creationTime=pe(i.getUint32(n)),n+=4,r.modificationTime=pe(i.getUint32(n)),n+=4,r.timescale=i.getUint32(n),n+=4),r.duration=i.getUint32(n),n+=4,e=i.getUint16(n),r.language+=String.fromCharCode(96+(e>>10)),r.language+=String.fromCharCode(96+((992&e)>>5)),r.language+=String.fromCharCode(96+(31&e)),r},mdia:function(t){return{boxes:le(t)}},mfhd:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),sequenceNumber:t[4]<<24|t[5]<<16|t[6]<<8|t[7]}},minf:function(t){return{boxes:le(t)}},mp4a:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i={dataReferenceIndex:e.getUint16(6),channelcount:e.getUint16(16),samplesize:e.getUint16(18),samplerate:e.getUint16(24)+e.getUint16(26)/65536};return 28<t.byteLength&&(i.streamDescriptor=le(t.subarray(28))[0]),i},moof:function(t){return{boxes:le(t)}},moov:function(t){return{boxes:le(t)}},mvex:function(t){return{boxes:le(t)}},mvhd:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength),i=4,n={version:e.getUint8(0),flags:new Uint8Array(t.subarray(1,4))};return 1===n.version?(i+=4,n.creationTime=pe(e.getUint32(i)),i+=8,n.modificationTime=pe(e.getUint32(i)),i+=4,n.timescale=e.getUint32(i),i+=8):(n.creationTime=pe(e.getUint32(i)),i+=4,n.modificationTime=pe(e.getUint32(i)),i+=4,n.timescale=e.getUint32(i),i+=4),n.duration=e.getUint32(i),i+=4,n.rate=e.getUint16(i)+e.getUint16(i+2)/16,i+=4,n.volume=e.getUint8(i)+e.getUint8(i+1)/8,i+=2,i+=2,i+=8,n.matrix=new Uint32Array(t.subarray(i,i+36)),i+=36,i+=24,n.nextTrackId=e.getUint32(i),n},pdin:function(t){var e=new DataView(t.buffer,t.byteOffset,t.byteLength);return{version:e.getUint8(0),flags:new Uint8Array(t.subarray(1,4)),rate:e.getUint32(4),initialDelay:e.getUint32(8)}},sdtp:function(t){var e,i={version:t[0],flags:new Uint8Array(t.subarray(1,4)),samples:[]};for(e=4;e<t.byteLength;e++)i.samples.push({dependsOn:(48&t[e])>>4,isDependedOn:(12&t[e])>>2,hasRedundancy:3&t[e]});return i},sidx:function(t){var e,i=new DataView(t.buffer,t.byteOffset,t.byteLength),n={version:t[0],flags:new Uint8Array(t.subarray(1,4)),references:[],referenceId:i.getUint32(4),timescale:i.getUint32(8),earliestPresentationTime:i.getUint32(12),firstOffset:i.getUint32(16)},r=i.getUint16(22);for(e=24;r;e+=12,r--)n.references.push({referenceType:(128&t[e])>>>7,referencedSize:2147483647&i.getUint32(e),subsegmentDuration:i.getUint32(e+4),startsWithSap:!!(128&t[e+8]),sapType:(112&t[e+8])>>>4,sapDeltaTime:268435455&i.getUint32(e+8)});return n},smhd:function(t){return{version:t[0],flags:new Uint8Array(t.subarray(1,4)),balance:t[4]+t[5]/256}},stbl:function(t){return{boxes:le(t)}},stco:function(t){var e,i=new 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n=this,r=["audio","video"];r.forEach(function(e){if(n[e+"Codec_"]&&!n[e+"Buffer_"]){var i=null;if(n.mediaSource_[e+"Buffer_"])(i=n.mediaSource_[e+"Buffer_"]).updating=!1;else{var t=e+'/mp4;codecs="'+n[e+"Codec_"]+'"';i=function(t,e){var i=t.addSourceBuffer(e),n=Object.create(null);n.updating=!1,n.realBuffer_=i;var r=function(e){"function"==typeof i[e]?n[e]=function(){return i[e].apply(i,arguments)}:"undefined"==typeof n[e]&&Object.defineProperty(n,e,{get:function(){return i[e]},set:function(t){return i[e]=t}})};for(var a in i)r(a);return n}(n.mediaSource_.nativeMediaSource_,t),n.mediaSource_[e+"Buffer_"]=i}n[e+"Buffer_"]=i,["update","updatestart","updateend"].forEach(function(t){i.addEventListener(t,function(){if("audio"!==e||!n.audioDisabled_)return"updateend"===t&&(n[e+"Buffer_"].updating=!1),r.every(function(t){return!("audio"!==t||!n.audioDisabled_)||(e===t||!n[t+"Buffer_"]||!n[t+"Buffer_"].updating)})?n.trigger(t):void 0})})}})}},{key:"appendBuffer",value:function(t){if(this.bufferUpdating_=!0,this.audioBuffer_&&this.audioBuffer_.buffered.length){var e=this.audioBuffer_.buffered;this.transmuxer_.postMessage({action:"setAudioAppendStart",appendStart:e.end(e.length-1)})}this.videoBuffer_&&this.transmuxer_.postMessage({action:"alignGopsWith",gopsToAlignWith:function(t,e,i){if("undefined"==typeof e||null===e||!t.length)return[];var n=Math.ceil(9e4*(e-i+3)),r=void 0;for(r=0;r<t.length&&!(t[r].pts>n);r++);return t.slice(r)}(this.gopBuffer_,this.mediaSource_.player_?this.mediaSource_.player_.currentTime():null,this.timeMapping_)}),this.transmuxer_.postMessage({action:"push",data:t.buffer,byteOffset:t.byteOffset,byteLength:t.byteLength},[t.buffer]),this.transmuxer_.postMessage({action:"flush"})}},{key:"appendGopInfo_",value:function(t){this.gopBuffer_=function(t,e,i){if(!e.length)return t;if(i)return e.slice();for(var n=e[0].pts,r=0;r<t.length&&!(t[r].pts>=n);r++);return t.slice(0,r).concat(e)}(this.gopBuffer_,t.data.gopInfo,this.safeAppend_)}},{key:"remove",value:function(t,e){if(this.videoBuffer_&&(this.videoBuffer_.updating=!0,this.videoBuffer_.remove(t,e),this.gopBuffer_=function(t,e,i,n){for(var r=Math.ceil(9e4*(e-n)),a=Math.ceil(9e4*(i-n)),s=t.slice(),o=t.length;o--&&!(t[o].pts<=a););if(-1===o)return s;for(var u=o+1;u--&&!(t[u].pts<=r););return u=Math.max(u,0),s.splice(u,o-u+1),s}(this.gopBuffer_,t,e,this.timeMapping_)),!this.audioDisabled_&&this.audioBuffer_&&(this.audioBuffer_.updating=!0,this.audioBuffer_.remove(t,e)),Yh(t,e,this.metadataTrack_),this.inbandTextTracks_)for(var i in this.inbandTextTracks_)Yh(t,e,this.inbandTextTracks_[i])}},{key:"processPendingSegments_",value:function(){var t={video:{segments:[],bytes:0},audio:{segments:[],bytes:0},captions:[],metadata:[]};t=this.pendingBuffers_.reduce(function(t,e){var i=e.type,n=e.data,r=e.initSegment;return t[i].segments.push(n),t[i].bytes+=n.byteLength,t[i].initSegment=r,e.captions&&(t.captions=t.captions.concat(e.captions)),e.info&&(t[i].info=e.info),e.metadata&&(t.metadata=t.metadata.concat(e.metadata)),t},t),this.videoBuffer_||this.audioBuffer_||(0===t.video.bytes&&(this.videoCodec_=null),0===t.audio.bytes&&(this.audioCodec_=null),this.createRealSourceBuffers_()),t.audio.info&&this.mediaSource_.trigger({type:"audioinfo",info:t.audio.info}),t.video.info&&this.mediaSource_.trigger({type:"videoinfo",info:t.video.info}),this.appendAudioInitSegment_&&(!this.audioDisabled_&&this.audioBuffer_&&(t.audio.segments.unshift(t.audio.initSegment),t.audio.bytes+=t.audio.initSegment.byteLength),this.appendAudioInitSegment_=!1);var e=!1;this.videoBuffer_&&t.video.bytes?(t.video.segments.unshift(t.video.initSegment),t.video.bytes+=t.video.initSegment.byteLength,this.concatAndAppendSegments_(t.video,this.videoBuffer_),Kh(this,t.captions,t.metadata)):!this.videoBuffer_||!this.audioDisabled_&&this.audioBuffer_||(e=!0),!this.audioDisabled_&&this.audioBuffer_&&this.concatAndAppendSegments_(t.audio,this.audioBuffer_),this.pendingBuffers_.length=0,e&&this.trigger("updateend"),this.bufferUpdating_=!1}},{key:"concatAndAppendSegments_",value:function(t,e){var i=0,n=void 0;if(t.bytes){n=new Uint8Array(t.bytes),t.segments.forEach(function(t){n.set(t,i),i+=t.byteLength});try{e.updating=!0,e.appendBuffer(n)}catch(t){this.mediaSource_.player_&&this.mediaSource_.player_.error({code:-3,type:"APPEND_BUFFER_ERR",message:t.message,originalError:t})}}}},{key:"abort",value:function(){this.videoBuffer_&&this.videoBuffer_.abort(),!this.audioDisabled_&&this.audioBuffer_&&this.audioBuffer_.abort(),this.transmuxer_&&this.transmuxer_.postMessage({action:"reset"}),this.pendingBuffers_.length=0,this.bufferUpdating_=!1}}]),r}(),vd=function(t){function e(){nh(this,e);var a=sh(this,(e.__proto__||Object.getPrototypeOf(e)).call(this)),t=void 0;for(t in a.nativeMediaSource_=new g.MediaSource,a.nativeMediaSource_)t in e.prototype||"function"!=typeof a.nativeMediaSource_[t]||(a[t]=a.nativeMediaSource_[t].bind(a.nativeMediaSource_));return a.duration_=NaN,Object.defineProperty(a,"duration",{get:function(){return this.duration_===1/0?this.duration_:this.nativeMediaSource_.duration},set:function(t){(this.duration_=t)===1/0||(this.nativeMediaSource_.duration=t)}}),Object.defineProperty(a,"seekable",{get:function(){return this.duration_===1/0?Oa.createTimeRanges([[0,this.nativeMediaSource_.duration]]):this.nativeMediaSource_.seekable}}),Object.defineProperty(a,"readyState",{get:function(){return this.nativeMediaSource_.readyState}}),Object.defineProperty(a,"activeSourceBuffers",{get:function(){return this.activeSourceBuffers_}}),a.sourceBuffers=[],a.activeSourceBuffers_=[],a.updateActiveSourceBuffers_=function(){if(a.activeSourceBuffers_.length=0,1===a.sourceBuffers.length){var t=a.sourceBuffers[0];return t.appendAudioInitSegment_=!0,t.audioDisabled_=!t.audioCodec_,void a.activeSourceBuffers_.push(t)}for(var i=!1,n=!0,e=0;e<a.player_.audioTracks().length;e++){var r=a.player_.audioTracks()[e];if(r.enabled&&"main"!==r.kind){n=!(i=!0);break}}a.sourceBuffers.forEach(function(t,e){if(t.appendAudioInitSegment_=!0,t.videoCodec_&&t.audioCodec_)t.audioDisabled_=i;else if(t.videoCodec_&&!t.audioCodec_)t.audioDisabled_=!0,n=!1;else if(!t.videoCodec_&&t.audioCodec_&&(t.audioDisabled_=e?n:!n,t.audioDisabled_))return;a.activeSourceBuffers_.push(t)})},a.onPlayerMediachange_=function(){a.sourceBuffers.forEach(function(t){t.appendAudioInitSegment_=!0})},a.onHlsReset_=function(){a.sourceBuffers.forEach(function(t){t.transmuxer_&&t.transmuxer_.postMessage({action:"resetCaptions"})})},a.onHlsSegmentTimeMapping_=function(e){a.sourceBuffers.forEach(function(t){return t.timeMapping_=e.mapping})},["sourceopen","sourceclose","sourceended"].forEach(function(t){this.nativeMediaSource_.addEventListener(t,this.trigger.bind(this))},a),a.on("sourceopen",function(t){var e=p.querySelector('[src="'+a.url_+'"]');e&&(a.player_=Oa(e.parentNode),a.player_.tech_.on("hls-reset",a.onHlsReset_),a.player_.tech_.on("hls-segment-time-mapping",a.onHlsSegmentTimeMapping_),a.player_.audioTracks&&a.player_.audioTracks()&&(a.player_.audioTracks().on("change",a.updateActiveSourceBuffers_),a.player_.audioTracks().on("addtrack",a.updateActiveSourceBuffers_),a.player_.audioTracks().on("removetrack",a.updateActiveSourceBuffers_)),a.player_.on("mediachange",a.onPlayerMediachange_))}),a.on("sourceended",function(t){for(var e=$h(a.duration),i=0;i<a.sourceBuffers.length;i++){var n=a.sourceBuffers[i],r=n.metadataTrack_&&n.metadataTrack_.cues;r&&r.length&&(r[r.length-1].endTime=e)}}),a.on("sourceclose",function(t){this.sourceBuffers.forEach(function(t){t.transmuxer_&&t.transmuxer_.terminate()}),this.sourceBuffers.length=0,this.player_&&(this.player_.audioTracks&&this.player_.audioTracks()&&(this.player_.audioTracks().off("change",this.updateActiveSourceBuffers_),this.player_.audioTracks().off("addtrack",this.updateActiveSourceBuffers_),this.player_.audioTracks().off("removetrack",this.updateActiveSourceBuffers_)),this.player_.el_&&(this.player_.off("mediachange",this.onPlayerMediachange_),this.player_.tech_.off("hls-reset",this.onHlsReset_),this.player_.tech_.off("hls-segment-time-mapping",this.onHlsSegmentTimeMapping_)))}),a}return ah(e,Oa.EventTarget),rh(e,[{key:"addSeekableRange_",value:function(t,e){var i=void 0;if(this.duration!==1/0)throw(i=new Error("MediaSource.addSeekableRange() can only be invoked when the duration is Infinity")).name="InvalidStateError",i.code=11,i;(e>this.nativeMediaSource_.duration||isNaN(this.nativeMediaSource_.duration))&&(this.nativeMediaSource_.duration=e)}},{key:"addSourceBuffer",value:function(t){var r,e,i=void 0,n=(r={type:"",parameters:{}},e=t.trim().split(";"),r.type=e.shift().trim(),e.forEach(function(t){var e=t.trim().split("=");if(1<e.length){var i=e[0].replace(/"/g,"").trim(),n=e[1].replace(/"/g,"").trim();r.parameters[i]=n}}),r);if(/^(video|audio)\/mp2t$/i.test(n.type)){var a=[];n.parameters&&n.parameters.codecs&&(a=n.parameters.codecs.split(","),a=(a=cd(a)).filter(function(t){return fd(t)||md(t)})),0===a.length&&(a=["avc1.4d400d","mp4a.40.2"]),i=new yd(this,a),0!==this.sourceBuffers.length&&(this.sourceBuffers[0].createRealSourceBuffers_(),i.createRealSourceBuffers_(),this.sourceBuffers[0].audioDisabled_=!0)}else i=this.nativeMediaSource_.addSourceBuffer(t);return this.sourceBuffers.push(i),i}}]),e}(),_d=0;Oa.mediaSources={};var bd=function(t,e){var i=Oa.mediaSources[t];if(!i)throw new Error("Media Source not found (Video.js)");i.trigger({type:"sourceopen",swfId:e})},Td=function(){return!!g.MediaSource&&!!g.MediaSource.isTypeSupported&&g.MediaSource.isTypeSupported('video/mp4;codecs="avc1.4d400d,mp4a.40.2"')},Sd=function(){if(this.MediaSource={open:bd,supportsNativeMediaSources:Td},Td())return new vd;throw new Error("Cannot use create a virtual MediaSource for this video")};Sd.open=bd,Sd.supportsNativeMediaSources=Td;var kd={createObjectURL:function(t){var e=void 0;return t instanceof vd?(e=g.URL.createObjectURL(t.nativeMediaSource_),t.url_=e):t instanceof vd?(e="blob:vjs-media-source/"+_d,_d++,Oa.mediaSources[e]=t,e):(e=g.URL.createObjectURL(t),t.url_=e)}};Oa.MediaSource=Sd,Oa.URL=kd;var Cd=Oa.EventTarget,wd=Oa.mergeOptions,Ed=function(t,e){for(var s=wd(t,{duration:e.duration,minimumUpdatePeriod:e.minimumUpdatePeriod}),i=0;i<e.playlists.length;i++){var n=dh(s,e.playlists[i]);n&&(s=n)}return hh(e,function(t,e,i,n){if(t.playlists&&t.playlists.length){var r=t.playlists[0].uri,a=dh(s,t.playlists[0]);a&&((s=a).mediaGroups[e][i][n].playlists[0]=s.playlists[r])}}),s},Ad=function(t){function a(t,e,i,n){nh(this,a);var r=sh(this,(a.__proto__||Object.getPrototypeOf(a)).call(this));if(r.hls_=e,r.withCredentials=i,!t)throw new Error("A non-empty playlist URL or playlist is required");return r.on("minimumUpdatePeriod",function(){r.refreshXml_()}),r.on("mediaupdatetimeout",function(){r.refreshMedia_()}),"string"==typeof t?(r.srcUrl=t,r.state="HAVE_NOTHING",sh(r)):(r.masterPlaylistLoader_=n,r.state="HAVE_METADATA",r.started=!0,r.media(t),g.setTimeout(function(){r.trigger("loadedmetadata")},0),r)}return ah(a,Cd),rh(a,[{key:"dispose",value:function(){this.stopRequest(),g.clearTimeout(this.mediaUpdateTimeout)}},{key:"stopRequest",value:function(){if(this.request){var t=this.request;this.request=null,t.onreadystatechange=null,t.abort()}}},{key:"media",value:function(t){if(!t)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);var e=this.state;if("string"==typeof t){if(!this.master.playlists[t])throw new Error("Unknown playlist URI: "+t);t=this.master.playlists[t]}var i=!this.media_||t.uri!==this.media_.uri;this.state="HAVE_METADATA",i&&(this.media_&&this.trigger("mediachanging"),this.media_=t,this.refreshMedia_(),"HAVE_MASTER"!==e&&this.trigger("mediachange"))}},{key:"pause",value:function(){this.stopRequest(),"HAVE_NOTHING"===this.state&&(this.started=!1)}},{key:"load",value:function(){this.started?this.trigger("loadedplaylist"):this.start()}},{key:"parseMasterXml",value:function(){var a=ho(this.masterXml_,{manifestUri:this.srcUrl,clientOffset:this.clientOffset_});a.uri=this.srcUrl;for(var t=0;t<a.playlists.length;t++){var e="placeholder-uri-"+t;a.playlists[t].uri=e,a.playlists[e]=a.playlists[t]}return hh(a,function(t,e,i,n){if(t.playlists&&t.playlists.length){var r="placeholder-uri-"+e+"-"+i+"-"+n;t.playlists[0].uri=r,a.playlists[r]=t.playlists[0]}}),ph(a),fh(a),a}},{key:"start",value:function(){var i=this;this.started=!0,this.request=this.hls_.xhr({uri:this.srcUrl,withCredentials:this.withCredentials},function(t,e){if(i.request){if(i.request=null,t)return i.error={status:e.status,message:"DASH playlist request error at URL: "+i.srcUrl,responseText:e.responseText,code:2},"HAVE_NOTHING"===i.state&&(i.started=!1),i.trigger("error");i.masterXml_=e.responseText,e.responseHeaders&&e.responseHeaders.date?i.masterLoaded_=Date.parse(e.responseHeaders.date):i.masterLoaded_=Date.now(),i.syncClientServerClock_(i.onClientServerClockSync_.bind(i))}})}},{key:"syncClientServerClock_",value:function(n){var r=this,a=po(this.masterXml_);return null===a?(this.clientOffset_=this.masterLoaded_-Date.now(),n()):"DIRECT"===a.method?(this.clientOffset_=a.value-Date.now(),n()):void(this.request=this.hls_.xhr({uri:ih(this.srcUrl,a.value),method:a.method,withCredentials:this.withCredentials},function(t,e){if(r.request){if(t)return r.clientOffset_=r.masterLoaded_-Date.now(),n();var i=void 0;i="HEAD"===a.method?e.responseHeaders&&e.responseHeaders.date?Date.parse(e.responseHeaders.date):r.masterLoaded_:Date.parse(e.responseText),r.clientOffset_=i-Date.now(),n()}}))}},{key:"onClientServerClockSync_",value:function(){var t=this;this.master=this.parseMasterXml(),this.state="HAVE_MASTER",this.trigger("loadedplaylist"),this.media_||this.media(this.master.playlists[0]),g.setTimeout(function(){t.trigger("loadedmetadata")},0),this.master.minimumUpdatePeriod&&g.setTimeout(function(){t.trigger("minimumUpdatePeriod")},this.master.minimumUpdatePeriod)}},{key:"refreshXml_",value:function(){var n=this;this.request=this.hls_.xhr({uri:this.srcUrl,withCredentials:this.withCredentials},function(t,e){if(n.request){if(n.request=null,t)return n.error={status:e.status,message:"DASH playlist request error at URL: "+n.srcUrl,responseText:e.responseText,code:2},"HAVE_NOTHING"===n.state&&(n.started=!1),n.trigger("error");n.masterXml_=e.responseText;var i=n.parseMasterXml();n.master=Ed(n.master,i),g.setTimeout(function(){n.trigger("minimumUpdatePeriod")},n.master.minimumUpdatePeriod)}})}},{key:"refreshMedia_",value:function(){var t=this,e=void 0,i=void 0;this.masterPlaylistLoader_?(e=this.masterPlaylistLoader_.master,i=this.masterPlaylistLoader_.parseMasterXml()):(e=this.master,i=this.parseMasterXml());var n=Ed(e,i);n?(this.masterPlaylistLoader_?this.masterPlaylistLoader_.master=n:this.master=n,this.media_=n.playlists[this.media_.uri]):this.trigger("playlistunchanged"),this.media().endList||(this.mediaUpdateTimeout=g.setTimeout(function(){t.trigger("mediaupdatetimeout")},mh(this.media(),!!n))),this.trigger("loadedplaylist")}}]),a}(),Ld=function(t){return Oa.log.debug?Oa.log.debug.bind(Oa,"VHS:",t+" >"):function(){}};function Od(){}var Pd=function(){function r(t,e,i,n){nh(this,r),this.callbacks_=[],this.pendingCallback_=null,this.timestampOffset_=0,this.mediaSource=t,this.processedAppend_=!1,this.type_=i,this.mimeType_=e,this.logger_=Ld("SourceUpdater["+i+"]["+e+"]"),"closed"===t.readyState?t.addEventListener("sourceopen",this.createSourceBuffer_.bind(this,e,n)):this.createSourceBuffer_(e,n)}return rh(r,[{key:"createSourceBuffer_",value:function(t,e){var i=this;this.sourceBuffer_=this.mediaSource.addSourceBuffer(t),this.logger_("created SourceBuffer"),e&&(e.trigger("sourcebufferadded"),this.mediaSource.sourceBuffers.length<2)?e.on("sourcebufferadded",function(){i.start_()}):this.start_()}},{key:"start_",value:function(){var e=this;this.started_=!0,this.onUpdateendCallback_=function(){var t=e.pendingCallback_;e.pendingCallback_=null,e.logger_("buffered ["+Gh(e.buffered())+"]"),t&&t(),e.runCallback_()},this.sourceBuffer_.addEventListener("updateend",this.onUpdateendCallback_),this.runCallback_()}},{key:"abort",value:function(t){var e=this;this.processedAppend_&&this.queueCallback_(function(){e.sourceBuffer_.abort()},t)}},{key:"appendBuffer",value:function(t,e){var i=this;this.processedAppend_=!0,this.queueCallback_(function(){i.sourceBuffer_.appendBuffer(t)},e)}},{key:"buffered",value:function(){return this.sourceBuffer_?this.sourceBuffer_.buffered:Oa.createTimeRanges()}},{key:"remove",value:function(t,e){var i=this,n=2<arguments.length&&void 0!==arguments[2]?arguments[2]:Od;this.processedAppend_&&this.queueCallback_(function(){i.logger_("remove ["+t+" => "+e+"]"),i.sourceBuffer_.remove(t,e)},n)}},{key:"updating",value:function(){return!this.sourceBuffer_||this.sourceBuffer_.updating||this.pendingCallback_}},{key:"timestampOffset",value:function(t){var e=this;return"undefined"!=typeof t&&(this.queueCallback_(function(){e.sourceBuffer_.timestampOffset=t}),this.timestampOffset_=t),this.timestampOffset_}},{key:"queueCallback_",value:function(t,e){this.callbacks_.push([t.bind(this),e]),this.runCallback_()}},{key:"runCallback_",value:function(){var t=void 0;!this.updating()&&this.callbacks_.length&&this.started_&&(t=this.callbacks_.shift(),this.pendingCallback_=t[1],t[0]())}},{key:"dispose",value:function(){this.sourceBuffer_.removeEventListener("updateend",this.onUpdateendCallback_),this.sourceBuffer_&&"open"===this.mediaSource.readyState&&this.sourceBuffer_.abort()}}]),r}(),Ud={GOAL_BUFFER_LENGTH:30,MAX_GOAL_BUFFER_LENGTH:60,GOAL_BUFFER_LENGTH_RATE:1,BANDWIDTH_VARIANCE:1.2,BUFFER_LOW_WATER_LINE:0,MAX_BUFFER_LOW_WATER_LINE:30,BUFFER_LOW_WATER_LINE_RATE:1},xd=2,Id=-101,Dd=-102,Rd=function(t){var e,i,n={};return t.byterange&&(n.Range=(e=t.byterange,i=e.offset+e.length-1,"bytes="+e.offset+"-"+i)),n},Md=function(t){t.forEach(function(t){t.abort()})},Bd=function(t,e){return e.timedout?{status:e.status,message:"HLS request timed-out at URL: "+e.uri,code:Id,xhr:e}:e.aborted?{status:e.status,message:"HLS request aborted at URL: "+e.uri,code:Dd,xhr:e}:t?{status:e.status,message:"HLS request errored at URL: "+e.uri,code:xd,xhr:e}:null},Nd=function(s,o,u){var l=[],c=0;return function(t,e){if(t&&(Md(s),l.push(t)),(c+=1)===s.length){if(e.endOfAllRequests=Date.now(),0<l.length){var i=l.reduce(function(t,e){return e.code>t.code?e:t});return u(i,e)}return e.encryptedBytes?(r=e,a=u,(n=o).addEventListener("message",function t(e){if(e.data.source===r.requestId){n.removeEventListener("message",t);var i=e.data.decrypted;return r.bytes=new Uint8Array(i.bytes,i.byteOffset,i.byteLength),a(null,r)}}),void n.postMessage(Nh({source:r.requestId,encrypted:r.encryptedBytes,key:r.key.bytes,iv:r.key.iv}),[r.encryptedBytes.buffer,r.key.bytes.buffer])):u(null,e)}var n,r,a}},jd=function(r,a){return function(t){var e,i,n;return r.stats=Oa.mergeOptions(r.stats,(i=(e=t).target,(n={bandwidth:1/0,bytesReceived:0,roundTripTime:Date.now()-i.requestTime||0}).bytesReceived=e.loaded,n.bandwidth=Math.floor(n.bytesReceived/n.roundTripTime*8*1e3),n)),!r.stats.firstBytesReceivedAt&&r.stats.bytesReceived&&(r.stats.firstBytesReceivedAt=Date.now()),a(t,r)}},Fd=function(t,e,i,n,r,a,s){var o,u,l,c,h,d=[],p=Nd(d,i,s);if(r.key){var f=t(Oa.mergeOptions(e,{uri:r.key.resolvedUri,responseType:"arraybuffer"}),(o=r,u=p,function(t,e){var i=e.response,n=Bd(t,e);if(n)return u(n,o);if(16!==i.byteLength)return u({status:e.status,message:"Invalid HLS key at URL: "+e.uri,code:xd,xhr:e},o);var r=new DataView(i);return o.key.bytes=new Uint32Array([r.getUint32(0),r.getUint32(4),r.getUint32(8),r.getUint32(12)]),u(null,o)}));d.push(f)}if(r.map&&!r.map.bytes){var m=t(Oa.mergeOptions(e,{uri:r.map.resolvedUri,responseType:"arraybuffer",headers:Rd(r.map)}),(l=r,c=n,h=p,function(t,e){var i=e.response,n=Bd(t,e);return n?h(n,l):0===i.byteLength?h({status:e.status,message:"Empty HLS segment content at URL: "+e.uri,code:xd,xhr:e},l):(l.map.bytes=new Uint8Array(e.response),c.isInitialized()||c.init(),l.map.timescales=vo.timescale(l.map.bytes),l.map.videoTrackIds=vo.videoTrackIds(l.map.bytes),h(null,l))}));d.push(m)}var g,y,v,_=t(Oa.mergeOptions(e,{uri:r.resolvedUri,responseType:"arraybuffer",headers:Rd(r)}),(g=r,y=n,v=p,function(t,e){var i,n=e.response,r=Bd(t,e),a=void 0;return r?v(r,g):0===n.byteLength?v({status:e.status,message:"Empty HLS segment content at URL: "+e.uri,code:xd,xhr:e},g):(g.stats={bandwidth:(i=e).bandwidth,bytesReceived:i.bytesReceived||0,roundTripTime:i.roundTripTime||0},g.key?g.encryptedBytes=new Uint8Array(e.response):g.bytes=new Uint8Array(e.response),g.map&&g.map.bytes&&(y.isInitialized()||y.init(),(a=y.parse(g.bytes,g.map.videoTrackIds,g.map.timescales))&&a.captions&&(g.captionStreams=a.captionStreams,g.fmp4Captions=a.captions)),v(null,g))}));return _.addEventListener("progress",jd(r,a)),d.push(_),function(){return Md(d)}},Vd=function(t,e){var i;return t&&(i=g.getComputedStyle(t))?i[e]:""},Hd=function(t,n){var r=t.slice();t.sort(function(t,e){var i=n(t,e);return 0===i?r.indexOf(t)-r.indexOf(e):i})},zd=function(t,e){var i=void 0,n=void 0;return t.attributes.BANDWIDTH&&(i=t.attributes.BANDWIDTH),i=i||g.Number.MAX_VALUE,e.attributes.BANDWIDTH&&(n=e.attributes.BANDWIDTH),i-(n=n||g.Number.MAX_VALUE)},qd=function(t,e,i){if(!t||!e)return!1;var n=i===t.segments.length;return t.endList&&"open"===e.readyState&&n},Wd=function(t){return"number"==typeof t&&isFinite(t)},Gd=function(t){function i(t){nh(this,i);var e=sh(this,(i.__proto__||Object.getPrototypeOf(i)).call(this));if(!t)throw new TypeError("Initialization settings are required");if("function"!=typeof t.currentTime)throw new TypeError("No currentTime getter specified");if(!t.mediaSource)throw new TypeError("No MediaSource specified");return e.bandwidth=t.bandwidth,e.throughput={rate:0,count:0},e.roundTrip=NaN,e.resetStats_(),e.mediaIndex=null,e.hasPlayed_=t.hasPlayed,e.currentTime_=t.currentTime,e.seekable_=t.seekable,e.seeking_=t.seeking,e.duration_=t.duration,e.mediaSource_=t.mediaSource,e.hls_=t.hls,e.loaderType_=t.loaderType,e.startingMedia_=void 0,e.segmentMetadataTrack_=t.segmentMetadataTrack,e.goalBufferLength_=t.goalBufferLength,e.sourceType_=t.sourceType,e.inbandTextTracks_=t.inbandTextTracks,e.state_="INIT",e.checkBufferTimeout_=null,e.error_=void 0,e.currentTimeline_=-1,e.pendingSegment_=null,e.mimeType_=null,e.sourceUpdater_=null,e.xhrOptions_=null,e.activeInitSegmentId_=null,e.initSegments_={},e.captionParser_=new pc,e.decrypter_=t.decrypter,e.syncController_=t.syncController,e.syncPoint_={segmentIndex:0,time:0},e.syncController_.on("syncinfoupdate",function(){return e.trigger("syncinfoupdate")}),e.mediaSource_.addEventListener("sourceopen",function(){return e.ended_=!1}),e.fetchAtBuffer_=!1,e.logger_=Ld("SegmentLoader["+e.loaderType_+"]"),Object.defineProperty(e,"state",{get:function(){return this.state_},set:function(t){t!==this.state_&&(this.logger_(this.state_+" -> "+t),this.state_=t)}}),e}return ah(i,Oa.EventTarget),rh(i,[{key:"resetStats_",value:function(){this.mediaBytesTransferred=0,this.mediaRequests=0,this.mediaRequestsAborted=0,this.mediaRequestsTimedout=0,this.mediaRequestsErrored=0,this.mediaTransferDuration=0,this.mediaSecondsLoaded=0}},{key:"dispose",value:function(){this.state="DISPOSED",this.pause(),this.abort_(),this.sourceUpdater_&&this.sourceUpdater_.dispose(),this.resetStats_(),this.captionParser_.reset()}},{key:"abort",value:function(){"WAITING"===this.state?(this.abort_(),this.state="READY",this.paused()||this.monitorBuffer_()):this.pendingSegment_&&(this.pendingSegment_=null)}},{key:"abort_",value:function(){this.pendingSegment_&&this.pendingSegment_.abortRequests(),this.pendingSegment_=null}},{key:"error",value:function(t){return"undefined"!=typeof t&&(this.error_=t),this.pendingSegment_=null,this.error_}},{key:"endOfStream",value:function(){this.ended_=!0,this.pause(),this.trigger("ended")}},{key:"buffered_",value:function(){return this.sourceUpdater_?this.sourceUpdater_.buffered():Oa.createTimeRanges()}},{key:"initSegment",value:function(t){var e=1<arguments.length&&void 0!==arguments[1]&&arguments[1];if(!t)return null;var i=jh(t),n=this.initSegments_[i];return e&&!n&&t.bytes&&(this.initSegments_[i]=n={resolvedUri:t.resolvedUri,byterange:t.byterange,bytes:t.bytes,timescales:t.timescales,videoTrackIds:t.videoTrackIds}),n||t}},{key:"couldBeginLoading_",value:function(){return this.playlist_&&(this.sourceUpdater_||this.mimeType_&&"INIT"===this.state)&&!this.paused()}},{key:"load",value:function(){if(this.monitorBuffer_(),this.playlist_){if(this.syncController_.setDateTimeMapping(this.playlist_),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();!this.couldBeginLoading_()||"READY"!==this.state&&"INIT"!==this.state||(this.state="READY")}}},{key:"init_",value:function(){return this.state="READY",this.sourceUpdater_=new Pd(this.mediaSource_,this.mimeType_,this.loaderType_,this.sourceBufferEmitter_),this.resetEverything(),this.monitorBuffer_()}},{key:"playlist",value:function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};if(t){var i=this.playlist_,n=this.pendingSegment_;this.playlist_=t,this.xhrOptions_=e,this.hasPlayed_()||(t.syncInfo={mediaSequence:t.mediaSequence,time:0});var r=i?i.id:null;if(this.logger_("playlist update ["+r+" => "+t.id+"]"),this.trigger("syncinfoupdate"),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();if(i&&i.uri===t.uri){var a=t.mediaSequence-i.mediaSequence;this.logger_("live window shift ["+a+"]"),null!==this.mediaIndex&&(this.mediaIndex-=a),n&&(n.mediaIndex-=a,0<=n.mediaIndex&&(n.segment=t.segments[n.mediaIndex])),this.syncController_.saveExpiredSegmentInfo(i,t)}else null!==this.mediaIndex&&this.resyncLoader()}}},{key:"pause",value:function(){this.checkBufferTimeout_&&(g.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=null)}},{key:"paused",value:function(){return null===this.checkBufferTimeout_}},{key:"mimeType",value:function(t,e){this.mimeType_||(this.mimeType_=t,this.sourceBufferEmitter_=e,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_())}},{key:"resetEverything",value:function(t){this.ended_=!1,this.resetLoader(),this.remove(0,this.duration_(),t),this.captionParser_.clearAllCaptions(),this.trigger("reseteverything")}},{key:"resetLoader",value:function(){this.fetchAtBuffer_=!1,this.resyncLoader()}},{key:"resyncLoader",value:function(){this.mediaIndex=null,this.syncPoint_=null,this.abort()}},{key:"remove",value:function(t,e,i){if(this.sourceUpdater_&&this.sourceUpdater_.remove(t,e,i),Yh(t,e,this.segmentMetadataTrack_),this.inbandTextTracks_)for(var n in this.inbandTextTracks_)Yh(t,e,this.inbandTextTracks_[n])}},{key:"monitorBuffer_",value:function(){this.checkBufferTimeout_&&g.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=g.setTimeout(this.monitorBufferTick_.bind(this),1)}},{key:"monitorBufferTick_",value:function(){"READY"===this.state&&this.fillBuffer_(),this.checkBufferTimeout_&&g.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=g.setTimeout(this.monitorBufferTick_.bind(this),500)}},{key:"fillBuffer_",value:function(){if(!this.sourceUpdater_.updating()){this.syncPoint_||(this.syncPoint_=this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_()));var t=this.checkBuffer_(this.buffered_(),this.playlist_,this.mediaIndex,this.hasPlayed_(),this.currentTime_(),this.syncPoint_);if(t)qd(this.playlist_,this.mediaSource_,t.mediaIndex)?this.endOfStream():(t.mediaIndex!==this.playlist_.segments.length-1||"ended"!==this.mediaSource_.readyState||this.seeking_())&&((t.timeline!==this.currentTimeline_||null!==t.startOfSegment&&t.startOfSegment<this.sourceUpdater_.timestampOffset())&&(this.syncController_.reset(),t.timestampOffset=t.startOfSegment,this.captionParser_.clearAllCaptions()),this.loadSegment_(t))}}},{key:"checkBuffer_",value:function(t,e,i,n,r,a){var s=0,o=void 0;t.length&&(s=t.end(t.length-1));var u=Math.max(0,s-r);if(!e.segments.length)return null;if(u>=this.goalBufferLength_())return null;if(!n&&1<=u)return null;if(null===a)return i=this.getSyncSegmentCandidate_(e),this.generateSegmentInfo_(e,i,null,!0);if(null!==i){var l=e.segments[i];return o=l&&l.end?l.end:s,this.generateSegmentInfo_(e,i+1,o,!1)}if(this.fetchAtBuffer_){var c=xh.getMediaInfoForTime(e,s,a.segmentIndex,a.time);i=c.mediaIndex,o=c.startTime}else{var h=xh.getMediaInfoForTime(e,r,a.segmentIndex,a.time);i=h.mediaIndex,o=h.startTime}return this.generateSegmentInfo_(e,i,o,!1)}},{key:"getSyncSegmentCandidate_",value:function(t){var e=this;if(-1===this.currentTimeline_)return 0;var i=t.segments.map(function(t,e){return{timeline:t.timeline,segmentIndex:e}}).filter(function(t){return t.timeline===e.currentTimeline_});return i.length?i[Math.min(i.length-1,1)].segmentIndex:Math.max(t.segments.length-1,0)}},{key:"generateSegmentInfo_",value:function(t,e,i,n){if(e<0||e>=t.segments.length)return null;var r=t.segments[e];return{requestId:"segment-loader-"+Math.random(),uri:r.resolvedUri,mediaIndex:e,isSyncRequest:n,startOfSegment:i,playlist:t,bytes:null,encryptedBytes:null,timestampOffset:null,timeline:r.timeline,duration:r.duration,segment:r}}},{key:"abortRequestEarly_",value:function(t){if(this.hls_.tech_.paused()||!this.xhrOptions_.timeout||!this.playlist_.attributes.BANDWIDTH)return!1;if(Date.now()-(t.firstBytesReceivedAt||Date.now())<1e3)return!1;var e=this.currentTime_(),i=t.bandwidth,n=this.pendingSegment_.duration,r=xh.estimateSegmentRequestTime(n,i,this.playlist_,t.bytesReceived),a=function(t,e){var i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:1;return((t.length?t.end(t.length-1):0)-e)/i}(this.buffered_(),e,this.hls_.tech_.playbackRate())-1;if(r<=a)return!1;var s=function(t){var e=t.master,i=t.currentTime,n=t.bandwidth,r=t.duration,a=t.segmentDuration,s=t.timeUntilRebuffer,o=t.currentTimeline,u=t.syncController,l=e.playlists.filter(function(t){return!xh.isIncompatible(t)}),c=l.filter(xh.isEnabled);c.length||(c=l.filter(function(t){return!xh.isDisabled(t)}));var h=c.filter(xh.hasAttribute.bind(null,"BANDWIDTH")).map(function(t){var e=u.getSyncPoint(t,r,o,i)?1:2;return{playlist:t,rebufferingImpact:xh.estimateSegmentRequestTime(a,n,t)*e-s}}),d=h.filter(function(t){return t.rebufferingImpact<=0});return Hd(d,function(t,e){return zd(e.playlist,t.playlist)}),d.length?d[0]:(Hd(h,function(t,e){return t.rebufferingImpact-e.rebufferingImpact}),h[0]||null)}({master:this.hls_.playlists.master,currentTime:e,bandwidth:i,duration:this.duration_(),segmentDuration:n,timeUntilRebuffer:a,currentTimeline:this.currentTimeline_,syncController:this.syncController_});if(s){var o=r-a-s.rebufferingImpact,u=.5;return a<=Hh&&(u=1),!s.playlist||s.playlist.uri===this.playlist_.uri||o<u?!1:(this.bandwidth=s.playlist.attributes.BANDWIDTH*Ud.BANDWIDTH_VARIANCE+1,this.abort(),this.trigger("earlyabort"),!0)}}},{key:"handleProgress_",value:function(t,e){this.pendingSegment_&&e.requestId===this.pendingSegment_.requestId&&!this.abortRequestEarly_(e.stats)&&this.trigger("progress")}},{key:"loadSegment_",value:function(t){this.state="WAITING",this.pendingSegment_=t,this.trimBackBuffer_(t),t.abortRequests=Fd(this.hls_.xhr,this.xhrOptions_,this.decrypter_,this.captionParser_,this.createSimplifiedSegmentObj_(t),this.handleProgress_.bind(this),this.segmentRequestFinished_.bind(this))}},{key:"trimBackBuffer_",value:function(t){var e,i,n,r,a=(e=this.seekable_(),i=this.currentTime_(),n=this.playlist_.targetDuration||10,r=void 0,r=e.length&&0<e.start(0)&&e.start(0)<i?e.start(0):i-30,Math.min(r,i-n));0<a&&this.remove(0,a)}},{key:"createSimplifiedSegmentObj_",value:function(t){var e=t.segment,i={resolvedUri:e.resolvedUri,byterange:e.byterange,requestId:t.requestId};if(e.key){var n=e.key.iv||new Uint32Array([0,0,0,t.mediaIndex+t.playlist.mediaSequence]);i.key={resolvedUri:e.key.resolvedUri,iv:n}}return e.map&&(i.map=this.initSegment(e.map)),i}},{key:"segmentRequestFinished_",value:function(t,e){if(this.mediaRequests+=1,e.stats&&(this.mediaBytesTransferred+=e.stats.bytesReceived,this.mediaTransferDuration+=e.stats.roundTripTime),this.pendingSegment_){if(e.requestId===this.pendingSegment_.requestId){if(t)return this.pendingSegment_=null,this.state="READY",t.code===Dd?void(this.mediaRequestsAborted+=1):(this.pause(),t.code===Id?(this.mediaRequestsTimedout+=1,this.bandwidth=1,this.roundTrip=NaN,void this.trigger("bandwidthupdate")):(this.mediaRequestsErrored+=1,this.error(t),void this.trigger("error")));this.bandwidth=e.stats.bandwidth,this.roundTrip=e.stats.roundTripTime,e.map&&(e.map=this.initSegment(e.map,!0)),this.processSegmentResponse_(e)}}else this.mediaRequestsAborted+=1}},{key:"processSegmentResponse_",value:function(t){var e=this.pendingSegment_;e.bytes=t.bytes,t.map&&(e.segment.map.bytes=t.map.bytes),e.endOfAllRequests=t.endOfAllRequests,t.fmp4Captions&&(!function(t,e,i){for(var n in i)if(!t[n]){e.trigger({type:"usage",name:"hls-608"});var r=e.textTracks().getTrackById(n);t[n]=r||e.addRemoteTextTrack({kind:"captions",id:n,label:n},!1).track}}(this.inbandTextTracks_,this.hls_.tech_,t.captionStreams),function(t){var r=t.inbandTextTracks,e=t.captionArray,a=t.timestampOffset;if(e){var s=window.WebKitDataCue||window.VTTCue;e.forEach(function(t){var e=t.stream,i=t.startTime,n=t.endTime;r[e]&&(i+=a,n+=a,r[e].addCue(new s(i,n,t.text)))})}}({inbandTextTracks:this.inbandTextTracks_,captionArray:t.fmp4Captions,timestampOffset:0}),this.captionParser_.clearParsedCaptions()),this.handleSegment_()}},{key:"handleSegment_",value:function(){var t=this;if(this.pendingSegment_){var e=this.pendingSegment_,i=e.segment,n=this.syncController_.probeSegmentInfo(e);"undefined"==typeof this.startingMedia_&&n&&(n.containsAudio||n.containsVideo)&&(this.startingMedia_={containsAudio:n.containsAudio,containsVideo:n.containsVideo});var r,a,s,o=(r=this.loaderType_,a=this.startingMedia_,s=n,"main"===r&&a&&s?s.containsAudio||s.containsVideo?a.containsVideo&&!s.containsVideo?"Only audio found in segment when we expected video. We can't switch to audio only from a stream that had video. To get rid of this message, please add codec information to the manifest.":!a.containsVideo&&s.containsVideo?"Video found in segment when we expected only audio. We can't switch to a stream with video from an audio only stream. To get rid of this message, please add codec information to the manifest.":null:"Neither audio nor video found in segment.":null);if(o)return this.error({message:o,blacklistDuration:1/0}),void this.trigger("error");if(e.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");null!==e.timestampOffset&&e.timestampOffset!==this.sourceUpdater_.timestampOffset()&&(this.sourceUpdater_.timestampOffset(e.timestampOffset),this.trigger("timestampoffset"));var u,l,c,h,d,p,f,m,g,y,v,_=this.syncController_.mappingForTimeline(e.timeline);if(null!==_&&this.trigger({type:"segmenttimemapping",mapping:_}),this.state="APPENDING",i.map){var b=jh(i.map);if(!this.activeInitSegmentId_||this.activeInitSegmentId_!==b){var T=this.initSegment(i.map);this.sourceUpdater_.appendBuffer(T.bytes,function(){t.activeInitSegmentId_=b})}}e.byteLength=e.bytes.byteLength,"number"==typeof i.start&&"number"==typeof i.end?this.mediaSecondsLoaded+=i.end-i.start:this.mediaSecondsLoaded+=i.duration,this.logger_((l=(u=e).segment,c=l.start,h=l.end,d=u.playlist,p=d.mediaSequence,f=d.id,m=d.segments,g=void 0===m?[]:m,y=u.mediaIndex,v=u.timeline,["appending ["+y+"] of ["+p+", "+(p+g.length)+"] from playlist ["+f+"]","["+c+" => "+h+"] in timeline ["+v+"]"].join(" "))),this.sourceUpdater_.appendBuffer(e.bytes,this.handleUpdateEnd_.bind(this))}else this.state="READY"}},{key:"handleUpdateEnd_",value:function(){if(!this.pendingSegment_)return this.state="READY",void(this.paused()||this.monitorBuffer_());var t=this.pendingSegment_,e=t.segment,i=null!==this.mediaIndex;(this.pendingSegment_=null,this.recordThroughput_(t),this.addSegmentMetadataCue_(t),this.state="READY",this.mediaIndex=t.mediaIndex,this.fetchAtBuffer_=!0,this.currentTimeline_=t.timeline,this.trigger("syncinfoupdate"),e.end&&this.currentTime_()-e.end>3*t.playlist.targetDuration)?this.resetEverything():(i&&this.trigger("bandwidthupdate"),this.trigger("progress"),qd(t.playlist,this.mediaSource_,t.mediaIndex+1)&&this.endOfStream(),this.paused()||this.monitorBuffer_())}},{key:"recordThroughput_",value:function(t){var e=this.throughput.rate,i=Date.now()-t.endOfAllRequests+1,n=Math.floor(t.byteLength/i*8*1e3);this.throughput.rate+=(n-e)/++this.throughput.count}},{key:"addSegmentMetadataCue_",value:function(t){if(this.segmentMetadataTrack_){var e=t.segment,i=e.start,n=e.end;if(Wd(i)&&Wd(n)){Yh(i,n,this.segmentMetadataTrack_);var r=g.WebKitDataCue||g.VTTCue,a={bandwidth:t.playlist.attributes.BANDWIDTH,resolution:t.playlist.attributes.RESOLUTION,codecs:t.playlist.attributes.CODECS,byteLength:t.byteLength,uri:t.uri,timeline:t.timeline,playlist:t.playlist.uri,start:i,end:n},s=new r(i,n,JSON.stringify(a));s.value=a,this.segmentMetadataTrack_.addCue(s)}}}}]),i}(),Xd=function(t){return decodeURIComponent(escape(String.fromCharCode.apply(null,t)))},Yd=new Uint8Array("\n\n".split("").map(function(t){return t.charCodeAt(0)})),$d=function(t){function n(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};nh(this,n);var i=sh(this,(n.__proto__||Object.getPrototypeOf(n)).call(this,t,e));return i.mediaSource_=null,i.subtitlesTrack_=null,i}return ah(n,Gd),rh(n,[{key:"buffered_",value:function(){if(!this.subtitlesTrack_||!this.subtitlesTrack_.cues.length)return Oa.createTimeRanges();var t=this.subtitlesTrack_.cues,e=t[0].startTime,i=t[t.length-1].startTime;return Oa.createTimeRanges([[e,i]])}},{key:"initSegment",value:function(t){var e=1<arguments.length&&void 0!==arguments[1]&&arguments[1];if(!t)return null;var i=jh(t),n=this.initSegments_[i];if(e&&!n&&t.bytes){var r=Yd.byteLength+t.bytes.byteLength,a=new Uint8Array(r);a.set(t.bytes),a.set(Yd,t.bytes.byteLength),this.initSegments_[i]=n={resolvedUri:t.resolvedUri,byterange:t.byterange,bytes:a}}return n||t}},{key:"couldBeginLoading_",value:function(){return this.playlist_&&this.subtitlesTrack_&&!this.paused()}},{key:"init_",value:function(){return this.state="READY",this.resetEverything(),this.monitorBuffer_()}},{key:"track",value:function(t){return"undefined"==typeof t||(this.subtitlesTrack_=t,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_()),this.subtitlesTrack_}},{key:"remove",value:function(t,e){Yh(t,e,this.subtitlesTrack_)}},{key:"fillBuffer_",value:function(){var t=this;this.syncPoint_||(this.syncPoint_=this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_()));var e=this.checkBuffer_(this.buffered_(),this.playlist_,this.mediaIndex,this.hasPlayed_(),this.currentTime_(),this.syncPoint_);if(e=this.skipEmptySegments_(e)){if(null===this.syncController_.timestampOffsetForTimeline(e.timeline)){return this.syncController_.one("timestampoffset",function(){t.state="READY",t.paused()||t.monitorBuffer_()}),void(this.state="WAITING_ON_TIMELINE")}this.loadSegment_(e)}}},{key:"skipEmptySegments_",value:function(t){for(;t&&t.segment.empty;)t=this.generateSegmentInfo_(t.playlist,t.mediaIndex+1,t.startOfSegment+t.duration,t.isSyncRequest);return t}},{key:"handleSegment_",value:function(){var e=this;if(this.pendingSegment_&&this.subtitlesTrack_){this.state="APPENDING";var t=this.pendingSegment_,i=t.segment;if("function"!=typeof g.WebVTT&&this.subtitlesTrack_&&this.subtitlesTrack_.tech_){var n=function(){e.handleSegment_()};return this.state="WAITING_ON_VTTJS",this.subtitlesTrack_.tech_.one("vttjsloaded",n),void this.subtitlesTrack_.tech_.one("vttjserror",function(){e.subtitlesTrack_.tech_.off("vttjsloaded",n),e.error({message:"Error loading vtt.js"}),e.state="READY",e.pause(),e.trigger("error")})}i.requested=!0;try{this.parseVTTCues_(t)}catch(t){return this.error({message:t.message}),this.state="READY",this.pause(),this.trigger("error")}if(this.updateTimeMapping_(t,this.syncController_.timelines[t.timeline],this.playlist_),t.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");t.byteLength=t.bytes.byteLength,this.mediaSecondsLoaded+=i.duration,t.cues.length&&this.remove(t.cues[0].endTime,t.cues[t.cues.length-1].endTime),t.cues.forEach(function(t){e.subtitlesTrack_.addCue(t)}),this.handleUpdateEnd_()}else this.state="READY"}},{key:"parseVTTCues_",value:function(e){var t=void 0,i=!1;"function"==typeof g.TextDecoder?t=new g.TextDecoder("utf8"):(t=g.WebVTT.StringDecoder(),i=!0);var n=new g.WebVTT.Parser(g,g.vttjs,t);if(e.cues=[],e.timestampmap={MPEGTS:0,LOCAL:0},n.oncue=e.cues.push.bind(e.cues),n.ontimestampmap=function(t){return e.timestampmap=t},n.onparsingerror=function(t){Oa.log.warn("Error encountered when parsing cues: "+t.message)},e.segment.map){var r=e.segment.map.bytes;i&&(r=Xd(r)),n.parse(r)}var a=e.bytes;i&&(a=Xd(a)),n.parse(a),n.flush()}},{key:"updateTimeMapping_",value:function(t,e,i){var n=t.segment;if(e)if(t.cues.length){var r=t.timestampmap,a=r.MPEGTS/9e4-r.LOCAL+e.mapping;if(t.cues.forEach(function(t){t.startTime+=a,t.endTime+=a}),!i.syncInfo){var s=t.cues[0].startTime,o=t.cues[t.cues.length-1].startTime;i.syncInfo={mediaSequence:i.mediaSequence+t.mediaIndex,time:Math.min(s,o-n.duration)}}}else n.empty=!0}}]),n}(),Kd=function(t,e){for(var i=t.cues,n=0;n<i.length;n++){var r=i[n];if(e>=r.adStartTime&&e<=r.adEndTime)return r}return null},Jd=qc,Qd=[{name:"VOD",run:function(t,e,i,n,r){if(i!==1/0){return{time:0,segmentIndex:0}}return null}},{name:"ProgramDateTime",run:function(t,e,i,n,r){if(!t.datetimeToDisplayTime)return null;var a=e.segments||[],s=null,o=null;r=r||0;for(var u=0;u<a.length;u++){var l=a[u];if(l.dateTimeObject){var c=l.dateTimeObject.getTime()/1e3+t.datetimeToDisplayTime,h=Math.abs(r-c);if(null!==o&&o<h)break;o=h,s={time:c,segmentIndex:u}}}return s}},{name:"Segment",run:function(t,e,i,n,r){var a=e.segments||[],s=null,o=null;r=r||0;for(var u=0;u<a.length;u++){var l=a[u];if(l.timeline===n&&"undefined"!=typeof l.start){var c=Math.abs(r-l.start);if(null!==o&&o<c)break;(!s||null===o||c<=o)&&(o=c,s={time:l.start,segmentIndex:u})}}return s}},{name:"Discontinuity",run:function(t,e,i,n,r){var a=null;if(r=r||0,e.discontinuityStarts&&e.discontinuityStarts.length)for(var s=null,o=0;o<e.discontinuityStarts.length;o++){var u=e.discontinuityStarts[o],l=e.discontinuitySequence+o+1,c=t.discontinuities[l];if(c){var h=Math.abs(r-c.time);if(null!==s&&s<h)break;(!a||null===s||h<=s)&&(s=h,a={time:c.time,segmentIndex:u})}}return a}},{name:"Playlist",run:function(t,e,i,n,r){return e.syncInfo?{time:e.syncInfo.time,segmentIndex:e.syncInfo.mediaSequence-e.mediaSequence}:null}}],Zd=function(t){function e(){nh(this,e);var t=sh(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.inspectCache_=void 0,t.timelines=[],t.discontinuities=[],t.datetimeToDisplayTime=null,t.logger_=Ld("SyncController"),t}return ah(e,Oa.EventTarget),rh(e,[{key:"getSyncPoint",value:function(t,e,i,n){var r=this.runStrategies_(t,e,i,n);return r.length?this.selectSyncPoint_(r,{key:"time",value:n}):null}},{key:"getExpiredTime",value:function(t,e){if(!t||!t.segments)return null;var i=this.runStrategies_(t,e,t.discontinuitySequence,0);if(!i.length)return null;var n=this.selectSyncPoint_(i,{key:"segmentIndex",value:0});return 0<n.segmentIndex&&(n.time*=-1),Math.abs(n.time+bh(t,n.segmentIndex,0))}},{key:"runStrategies_",value:function(t,e,i,n){for(var r=[],a=0;a<Qd.length;a++){var s=Qd[a],o=s.run(this,t,e,i,n);o&&(o.strategy=s.name,r.push({strategy:s.name,syncPoint:o}))}return r}},{key:"selectSyncPoint_",value:function(t,e){for(var i=t[0].syncPoint,n=Math.abs(t[0].syncPoint[e.key]-e.value),r=t[0].strategy,a=1;a<t.length;a++){var s=Math.abs(t[a].syncPoint[e.key]-e.value);s<n&&(n=s,i=t[a].syncPoint,r=t[a].strategy)}return this.logger_("syncPoint for ["+e.key+": "+e.value+"] chosen with strategy ["+r+"]: [time:"+i.time+", segmentIndex:"+i.segmentIndex+"]"),i}},{key:"saveExpiredSegmentInfo",value:function(t,e){for(var i=e.mediaSequence-t.mediaSequence-1;0<=i;i--){var n=t.segments[i];if(n&&"undefined"!=typeof n.start){e.syncInfo={mediaSequence:t.mediaSequence+i,time:n.start},this.logger_("playlist refresh sync: [time:"+e.syncInfo.time+", mediaSequence: "+e.syncInfo.mediaSequence+"]"),this.trigger("syncinfoupdate");break}}}},{key:"setDateTimeMapping",value:function(t){if(!this.datetimeToDisplayTime&&t.segments&&t.segments.length&&t.segments[0].dateTimeObject){var e=t.segments[0].dateTimeObject.getTime()/1e3;this.datetimeToDisplayTime=-e}}},{key:"reset",value:function(){this.inspectCache_=void 0}},{key:"probeSegmentInfo",value:function(t){var e=t.segment,i=t.playlist,n=void 0;return(n=e.map?this.probeMp4Segment_(t):this.probeTsSegment_(t))&&this.calculateSegmentTimeMapping_(t,n)&&(this.saveDiscontinuitySyncInfo_(t),i.syncInfo||(i.syncInfo={mediaSequence:i.mediaSequence+t.mediaIndex,time:e.start})),n}},{key:"probeMp4Segment_",value:function(t){var e=t.segment,i=vo.timescale(e.map.bytes),n=vo.startTime(i,t.bytes);return null!==t.timestampOffset&&(t.timestampOffset-=n),{start:n,end:n+e.duration}}},{key:"probeTsSegment_",value:function(t){var e=Jd(t.bytes,this.inspectCache_),i=void 0,n=void 0;return e?(e.video&&2===e.video.length?(this.inspectCache_=e.video[1].dts,i=e.video[0].dtsTime,n=e.video[1].dtsTime):e.audio&&2===e.audio.length&&(this.inspectCache_=e.audio[1].dts,i=e.audio[0].dtsTime,n=e.audio[1].dtsTime),{start:i,end:n,containsVideo:e.video&&2===e.video.length,containsAudio:e.audio&&2===e.audio.length}):null}},{key:"timestampOffsetForTimeline",value:function(t){return"undefined"==typeof this.timelines[t]?null:this.timelines[t].time}},{key:"mappingForTimeline",value:function(t){return"undefined"==typeof this.timelines[t]?null:this.timelines[t].mapping}},{key:"calculateSegmentTimeMapping_",value:function(t,e){var i=t.segment,n=this.timelines[t.timeline];if(null!==t.timestampOffset)n={time:t.startOfSegment,mapping:t.startOfSegment-e.start},this.timelines[t.timeline]=n,this.trigger("timestampoffset"),this.logger_("time mapping for timeline "+t.timeline+": [time: "+n.time+"] [mapping: "+n.mapping+"]"),i.start=t.startOfSegment,i.end=e.end+n.mapping;else{if(!n)return!1;i.start=e.start+n.mapping,i.end=e.end+n.mapping}return!0}},{key:"saveDiscontinuitySyncInfo_",value:function(t){var e=t.playlist,i=t.segment;if(i.discontinuity)this.discontinuities[i.timeline]={time:i.start,accuracy:0};else if(e.discontinuityStarts&&e.discontinuityStarts.length)for(var n=0;n<e.discontinuityStarts.length;n++){var r=e.discontinuityStarts[n],a=e.discontinuitySequence+n+1,s=r-t.mediaIndex,o=Math.abs(s);if(!this.discontinuities[a]||this.discontinuities[a].accuracy>o){var u=void 0;u=s<0?i.start-bh(e,t.mediaIndex,r):i.end+bh(e,t.mediaIndex+1,r),this.discontinuities[a]={time:u,accuracy:o}}}}}]),e}(),tp=new nd("./decrypter-worker.worker.js",function(t,e){var h,i,n,d,p,g,r,l,y,s,a=this;h=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},i=function(){function n(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(t,e,i){return e&&n(t.prototype,e),i&&n(t,i),t}}(),n=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!==("undefined"==typeof e?"undefined":Ee(e))&&"function"!=typeof e?t:e},d=function(){var t=[[[],[],[],[],[]],[[],[],[],[],[]]],e=t[0],i=t[1],n=e[4],r=i[4],a=void 0,s=void 0,o=void 0,u=[],l=[],c=void 0,h=void 0,d=void 0,p=void 0,f=void 0;for(a=0;a<256;a++)l[(u[a]=a<<1^283*(a>>7))^a]=a;for(s=o=0;!n[s];s^=c||1,o=l[o]||1)for(d=(d=o^o<<1^o<<2^o<<3^o<<4)>>8^255&d^99,f=16843009*u[h=u[c=u[r[n[s]=d]=s]]]^65537*h^257*c^16843008*s,p=257*u[d]^16843008*d,a=0;a<4;a++)e[a][s]=p=p<<24^p>>>8,i[a][d]=f=f<<24^f>>>8;for(a=0;a<5;a++)e[a]=e[a].slice(0),i[a]=i[a].slice(0);return t},p=null,g=function(){function c(t){h(this,c),p||(p=d()),this._tables=[[p[0][0].slice(),p[0][1].slice(),p[0][2].slice(),p[0][3].slice(),p[0][4].slice()],[p[1][0].slice(),p[1][1].slice(),p[1][2].slice(),p[1][3].slice(),p[1][4].slice()]];var e=void 0,i=void 0,n=void 0,r=void 0,a=void 0,s=this._tables[0][4],o=this._tables[1],u=t.length,l=1;if(4!==u&&6!==u&&8!==u)throw new Error("Invalid aes key size");for(r=t.slice(0),a=[],this._key=[r,a],e=u;e<4*u+28;e++)n=r[e-1],(e%u==0||8===u&&e%u==4)&&(n=s[n>>>24]<<24^s[n>>16&255]<<16^s[n>>8&255]<<8^s[255&n],e%u==0&&(n=n<<8^n>>>24^l<<24,l=l<<1^283*(l>>7))),r[e]=r[e-u]^n;for(i=0;e;i++,e--)n=r[3&i?e:e-4],a[i]=e<=4||i<4?n:o[0][s[n>>>24]]^o[1][s[n>>16&255]]^o[2][s[n>>8&255]]^o[3][s[255&n]]}return c.prototype.decrypt=function(t,e,i,n,r,a){var s=this._key[1],o=t^s[0],u=n^s[1],l=i^s[2],c=e^s[3],h=void 0,d=void 0,p=void 0,f=s.length/4-2,m=void 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t<<24|(65280&t)<<8|(16711680&t)>>8|t>>>24},s=function(){function u(t,e,i,n){h(this,u);var r=u.STEP,a=new Int32Array(t.buffer),s=new Uint8Array(t.byteLength),o=0;for(this.asyncStream_=new l,this.asyncStream_.push(this.decryptChunk_(a.subarray(o,o+r),e,i,s)),o=r;o<a.length;o+=r)i=new Uint32Array([y(a[o-4]),y(a[o-3]),y(a[o-2]),y(a[o-1])]),this.asyncStream_.push(this.decryptChunk_(a.subarray(o,o+r),e,i,s));this.asyncStream_.push(function(){var t;n(null,(t=s).subarray(0,t.byteLength-t[t.byteLength-1]))})}return u.prototype.decryptChunk_=function(e,i,n,r){return function(){var t=function(t,e,i){var n=new Int32Array(t.buffer,t.byteOffset,t.byteLength>>2),r=new g(Array.prototype.slice.call(e)),a=new Uint8Array(t.byteLength),s=new Int32Array(a.buffer),o=void 0,u=void 0,l=void 0,c=void 0,h=void 0,d=void 0,p=void 0,f=void 0,m=void 0;for(o=i[0],u=i[1],l=i[2],c=i[3],m=0;m<n.length;m+=4)h=y(n[m]),d=y(n[m+1]),p=y(n[m+2]),f=y(n[m+3]),r.decrypt(h,d,p,f,s,m),s[m]=y(s[m]^o),s[m+1]=y(s[m+1]^u),s[m+2]=y(s[m+2]^l),s[m+3]=y(s[m+3]^c),o=h,u=d,l=p,c=f;return a}(e,i,n);r.set(t,e.byteOffset)}},i(u,null,[{key:"STEP",get:function(){return 32e3}}]),u}(),new function(a){a.onmessage=function(t){var r=t.data,e=new Uint8Array(r.encrypted.bytes,r.encrypted.byteOffset,r.encrypted.byteLength),i=new Uint32Array(r.key.bytes,r.key.byteOffset,r.key.byteLength/4),n=new Uint32Array(r.iv.bytes,r.iv.byteOffset,r.iv.byteLength/4);new s(e,i,n,function(t,e){var i,n;a.postMessage((i={source:r.source,decrypted:e},n={},Object.keys(i).forEach(function(t){var e=i[t];ArrayBuffer.isView(e)?n[t]={bytes:e.buffer,byteOffset:e.byteOffset,byteLength:e.byteLength}:n[t]=e}),n),[e.buffer])})}}(a)}),ep=function(t,e){t.abort(),t.pause(),e&&e.activePlaylistLoader&&(e.activePlaylistLoader.pause(),e.activePlaylistLoader=null)},ip=function(t,e){(e.activePlaylistLoader=t).load()},np={AUDIO:function(u,l){return function(){var t=l.segmentLoaders[u],e=l.mediaTypes[u],i=l.blacklistCurrentPlaylist;ep(t,e);var n=e.activeTrack(),r=e.activeGroup(),a=(r.filter(function(t){return t.default})[0]||r[0]).id,s=e.tracks[a];if(n!==s){for(var o in Oa.log.warn("Problem encountered loading the alternate audio track.Switching back to default."),e.tracks)e.tracks[o].enabled=e.tracks[o]===s;e.onTrackChanged()}else i({message:"Problem encountered loading the default audio track."})}},SUBTITLES:function(n,r){return function(){var t=r.segmentLoaders[n],e=r.mediaTypes[n];Oa.log.warn("Problem encountered loading the subtitle track.Disabling subtitle track."),ep(t,e);var i=e.activeTrack();i&&(i.mode="disabled"),e.onTrackChanged()}}},rp={AUDIO:function(t,e,i){if(e){var n=i.tech,r=i.requestOptions,a=i.segmentLoaders[t];e.on("loadedmetadata",function(){var t=e.media();a.playlist(t,r),(!n.paused()||t.endList&&"none"!==n.preload())&&a.load()}),e.on("loadedplaylist",function(){a.playlist(e.media(),r),n.paused()||a.load()}),e.on("error",np[t](t,i))}},SUBTITLES:function(t,e,i){var n=i.tech,r=i.requestOptions,a=i.segmentLoaders[t],s=i.mediaTypes[t];e.on("loadedmetadata",function(){var t=e.media();a.playlist(t,r),a.track(s.activeTrack()),(!n.paused()||t.endList&&"none"!==n.preload())&&a.load()}),e.on("loadedplaylist",function(){a.playlist(e.media(),r),n.paused()||a.load()}),e.on("error",np[t](t,i))}},ap=function(e,i){return function(t){return t.attributes[e]===i}},sp=function(e){return function(t){return t.resolvedUri===e}},op={AUDIO:function(t,e){var i,n,r=e.hls,a=e.sourceType,s=e.segmentLoaders[t],o=e.requestOptions.withCredentials,u=e.master,l=u.mediaGroups,c=u.playlists,h=e.mediaTypes[t],d=h.groups,p=h.tracks,f=e.masterPlaylistLoader;for(var m in l[t]&&0!==Object.keys(l[t]).length||(l[t]={main:{default:{default:!0}}}),l[t]){d[m]||(d[m]=[]);var g=c.filter(ap(t,m));for(var y in l[t][m]){var v=l[t][m][y];g.filter(sp(v.resolvedUri)).length&&delete v.resolvedUri;var _=void 0;if(_=v.resolvedUri?new gh(v.resolvedUri,r,o):v.playlists&&"dash"===a?new Ad(v.playlists[0],r,o,f):null,v=Oa.mergeOptions({id:y,playlistLoader:_},v),rp[t](t,v.playlistLoader,e),d[m].push(v),"undefined"==typeof p[y]){var b=new Oa.AudioTrack({id:y,kind:(i=v,n=void 0,n=i.default?"main":"alternative",i.characteristics&&0<=i.characteristics.indexOf("public.accessibility.describes-video")&&(n="main-desc"),n),enabled:!1,language:v.language,default:v.default,label:y});p[y]=b}}}s.on("error",np[t](t,e))},SUBTITLES:function(t,e){var i=e.tech,n=e.hls,r=e.sourceType,a=e.segmentLoaders[t],s=e.requestOptions.withCredentials,o=e.master.mediaGroups,u=e.mediaTypes[t],l=u.groups,c=u.tracks,h=e.masterPlaylistLoader;for(var d in o[t])for(var p in l[d]||(l[d]=[]),o[t][d])if(!o[t][d][p].forced){var f=o[t][d][p],m=void 0;if("hls"===r?m=new gh(f.resolvedUri,n,s):"dash"===r&&(m=new Ad(f.playlists[0],n,s,h)),f=Oa.mergeOptions({id:p,playlistLoader:m},f),rp[t](t,f.playlistLoader,e),l[d].push(f),"undefined"==typeof c[p]){var g=i.addRemoteTextTrack({id:p,kind:"subtitles",enabled:!1,language:f.language,label:p},!1).track;c[p]=g}}a.on("error",np[t](t,e))},"CLOSED-CAPTIONS":function(t,e){var i=e.tech,n=e.master.mediaGroups,r=e.mediaTypes[t],a=r.groups,s=r.tracks;for(var o in n[t])for(var u in a[o]||(a[o]=[]),n[t][o]){var l=n[t][o][u];if(l.instreamId.match(/CC\d/)&&(a[o].push(Oa.mergeOptions({id:u},l)),"undefined"==typeof s[u])){var c=i.addRemoteTextTrack({id:l.instreamId,kind:"captions",enabled:!1,language:l.language,label:u},!1).track;s[u]=c}}}},up={AUDIO:function(i,n){return function(){var t=n.mediaTypes[i].tracks;for(var e in t)if(t[e].enabled)return t[e];return null}},SUBTITLES:function(i,n){return function(){var t=n.mediaTypes[i].tracks;for(var e in t)if("showing"===t[e].mode)return t[e];return null}}},lp=function(e){["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach(function(t){op[t](t,e)});var i=e.mediaTypes,t=e.masterPlaylistLoader,n=e.tech,r=e.hls;["AUDIO","SUBTITLES"].forEach(function(t){var a,s,o,u,l,c;i[t].activeGroup=(a=t,s=e,function(e){var t=s.masterPlaylistLoader,i=s.mediaTypes[a].groups,n=t.media();if(!n)return null;var r=null;return n.attributes[a]&&(r=i[n.attributes[a]]),r=r||i.main,"undefined"==typeof e?r:null===e?null:r.filter(function(t){return t.id===e.id})[0]||null}),i[t].activeTrack=up[t](t,e),i[t].onGroupChanged=(o=t,u=e,function(){var t=u.segmentLoaders,e=t[o],i=t.main,n=u.mediaTypes[o],r=n.activeTrack(),a=n.activeGroup(r),s=n.activePlaylistLoader;ep(e,n),a&&(a.playlistLoader?(e.resyncLoader(),ip(a.playlistLoader,n)):s&&i.resetEverything())}),i[t].onTrackChanged=(l=t,c=e,function(){var t=c.segmentLoaders,e=t[l],i=t.main,n=c.mediaTypes[l],r=n.activeTrack(),a=n.activeGroup(r),s=n.activePlaylistLoader;ep(e,n),a&&(a.playlistLoader?(s!==a.playlistLoader&&(e.track&&e.track(r),e.resetEverything()),ip(a.playlistLoader,n)):i.resetEverything())})});var a=i.AUDIO.activeGroup(),s=(a.filter(function(t){return t.default})[0]||a[0]).id;i.AUDIO.tracks[s].enabled=!0,i.AUDIO.onTrackChanged(),t.on("mediachange",function(){["AUDIO","SUBTITLES"].forEach(function(t){return i[t].onGroupChanged()})});var o=function(){i.AUDIO.onTrackChanged(),n.trigger({type:"usage",name:"hls-audio-change"})};for(var u in n.audioTracks().addEventListener("change",o),n.remoteTextTracks().addEventListener("change",i.SUBTITLES.onTrackChanged),r.on("dispose",function(){n.audioTracks().removeEventListener("change",o),n.remoteTextTracks().removeEventListener("change",i.SUBTITLES.onTrackChanged)}),n.clearTracks("audio"),i.AUDIO.tracks)n.audioTracks().addTrack(i.AUDIO.tracks[u])},cp=function(){var e={};return["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach(function(t){e[t]={groups:{},tracks:{},activePlaylistLoader:null,activeGroup:Od,activeTrack:Od,onGroupChanged:Od,onTrackChanged:Od}}),e},hp=void 0,dp=["mediaRequests","mediaRequestsAborted","mediaRequestsTimedout","mediaRequestsErrored","mediaTransferDuration","mediaBytesTransferred"],pp=function(t){return this.audioSegmentLoader_[t]+this.mainSegmentLoader_[t]},fp=function(t){function p(t){nh(this,p);var e=sh(this,(p.__proto__||Object.getPrototypeOf(p)).call(this)),i=t.url,n=t.withCredentials,r=t.tech,a=t.bandwidth,s=t.externHls,o=t.useCueTags,u=t.blacklistDuration,l=t.enableLowInitialPlaylist,c=t.sourceType,h=t.seekTo;if(!i)throw new Error("A non-empty playlist URL is required");hp=s,e.withCredentials=n,e.tech_=r,e.hls_=r.hls,e.seekTo_=h,e.sourceType_=c,e.useCueTags_=o,e.blacklistDuration=u,e.enableLowInitialPlaylist=l,e.useCueTags_&&(e.cueTagsTrack_=e.tech_.addTextTrack("metadata","ad-cues"),e.cueTagsTrack_.inBandMetadataTrackDispatchType=""),e.requestOptions_={withCredentials:e.withCredentials,timeout:null},e.mediaTypes_=cp(),e.mediaSource=new Oa.MediaSource,e.mediaSource.addEventListener("sourceopen",e.handleSourceOpen_.bind(e)),e.seekable_=Oa.createTimeRanges(),e.hasPlayed_=function(){return!1},e.syncController_=new Zd(t),e.segmentMetadataTrack_=r.addRemoteTextTrack({kind:"metadata",label:"segment-metadata"},!1).track,e.decrypter_=new tp,e.inbandTextTracks_={};var d={hls:e.hls_,mediaSource:e.mediaSource,currentTime:e.tech_.currentTime.bind(e.tech_),seekable:function(){return e.seekable()},seeking:function(){return e.tech_.seeking()},duration:function(){return e.mediaSource.duration},hasPlayed:function(){return e.hasPlayed_()},goalBufferLength:function(){return e.goalBufferLength()},bandwidth:a,syncController:e.syncController_,decrypter:e.decrypter_,sourceType:e.sourceType_,inbandTextTracks:e.inbandTextTracks_};return e.masterPlaylistLoader_="dash"===e.sourceType_?new Ad(i,e.hls_,e.withCredentials):new gh(i,e.hls_,e.withCredentials),e.setupMasterPlaylistLoaderListeners_(),e.mainSegmentLoader_=new Gd(Oa.mergeOptions(d,{segmentMetadataTrack:e.segmentMetadataTrack_,loaderType:"main"}),t),e.audioSegmentLoader_=new Gd(Oa.mergeOptions(d,{loaderType:"audio"}),t),e.subtitleSegmentLoader_=new $d(Oa.mergeOptions(d,{loaderType:"vtt"}),t),e.setupSegmentLoaderListeners_(),dp.forEach(function(t){e[t+"_"]=pp.bind(e,t)}),e.logger_=Ld("MPC"),e.masterPlaylistLoader_.load(),e}return ah(p,Oa.EventTarget),rh(p,[{key:"setupMasterPlaylistLoaderListeners_",value:function(){var n=this;this.masterPlaylistLoader_.on("loadedmetadata",function(){var t=n.masterPlaylistLoader_.media(),e=1.5*n.masterPlaylistLoader_.targetDuration*1e3;Uh(n.masterPlaylistLoader_.master,n.masterPlaylistLoader_.media())?n.requestOptions_.timeout=0:n.requestOptions_.timeout=e,t.endList&&"none"!==n.tech_.preload()&&(n.mainSegmentLoader_.playlist(t,n.requestOptions_),n.mainSegmentLoader_.load()),lp({sourceType:n.sourceType_,segmentLoaders:{AUDIO:n.audioSegmentLoader_,SUBTITLES:n.subtitleSegmentLoader_,main:n.mainSegmentLoader_},tech:n.tech_,requestOptions:n.requestOptions_,masterPlaylistLoader:n.masterPlaylistLoader_,hls:n.hls_,master:n.master(),mediaTypes:n.mediaTypes_,blacklistCurrentPlaylist:n.blacklistCurrentPlaylist.bind(n)}),n.triggerPresenceUsage_(n.master(),t);try{n.setupSourceBuffers_()}catch(t){return Oa.log.warn("Failed to create SourceBuffers",t),n.mediaSource.endOfStream("decode")}n.setupFirstPlay(),n.trigger("selectedinitialmedia")}),this.masterPlaylistLoader_.on("loadedplaylist",function(){var t=n.masterPlaylistLoader_.media();if(!t){n.excludeUnsupportedVariants_();var e=void 0;return n.enableLowInitialPlaylist&&(e=n.selectInitialPlaylist()),e||(e=n.selectPlaylist()),n.initialMedia_=e,void n.masterPlaylistLoader_.media(n.initialMedia_)}if(n.useCueTags_&&n.updateAdCues_(t),n.mainSegmentLoader_.playlist(t,n.requestOptions_),n.updateDuration(),n.tech_.paused()||(n.mainSegmentLoader_.load(),n.audioSegmentLoader_&&n.audioSegmentLoader_.load()),!t.endList){var i=function(){var t=n.seekable();0!==t.length&&n.mediaSource.addSeekableRange_(t.start(0),t.end(0))};if(n.duration()!==1/0){n.tech_.one("durationchange",function t(){n.duration()===1/0?i():n.tech_.one("durationchange",t)})}else i()}}),this.masterPlaylistLoader_.on("error",function(){n.blacklistCurrentPlaylist(n.masterPlaylistLoader_.error)}),this.masterPlaylistLoader_.on("mediachanging",function(){n.mainSegmentLoader_.abort(),n.mainSegmentLoader_.pause()}),this.masterPlaylistLoader_.on("mediachange",function(){var t=n.masterPlaylistLoader_.media(),e=1.5*n.masterPlaylistLoader_.targetDuration*1e3;Uh(n.masterPlaylistLoader_.master,n.masterPlaylistLoader_.media())?n.requestOptions_.timeout=0:n.requestOptions_.timeout=e,n.mainSegmentLoader_.playlist(t,n.requestOptions_),n.mainSegmentLoader_.load(),n.tech_.trigger({type:"mediachange",bubbles:!0})}),this.masterPlaylistLoader_.on("playlistunchanged",function(){var t=n.masterPlaylistLoader_.media();n.stuckAtPlaylistEnd_(t)&&(n.blacklistCurrentPlaylist({message:"Playlist no longer updating."}),n.tech_.trigger("playliststuck"))}),this.masterPlaylistLoader_.on("renditiondisabled",function(){n.tech_.trigger({type:"usage",name:"hls-rendition-disabled"})}),this.masterPlaylistLoader_.on("renditionenabled",function(){n.tech_.trigger({type:"usage",name:"hls-rendition-enabled"})})}},{key:"triggerPresenceUsage_",value:function(t,e){var i=t.mediaGroups||{},n=!0,r=Object.keys(i.AUDIO);for(var a in i.AUDIO)for(var s in i.AUDIO[a]){i.AUDIO[a][s].uri||(n=!1)}n&&this.tech_.trigger({type:"usage",name:"hls-demuxed"}),Object.keys(i.SUBTITLES).length&&this.tech_.trigger({type:"usage",name:"hls-webvtt"}),hp.Playlist.isAes(e)&&this.tech_.trigger({type:"usage",name:"hls-aes"}),hp.Playlist.isFmp4(e)&&this.tech_.trigger({type:"usage",name:"hls-fmp4"}),r.length&&1<Object.keys(i.AUDIO[r[0]]).length&&this.tech_.trigger({type:"usage",name:"hls-alternate-audio"}),this.useCueTags_&&this.tech_.trigger({type:"usage",name:"hls-playlist-cue-tags"})}},{key:"setupSegmentLoaderListeners_",value:function(){var a=this;this.mainSegmentLoader_.on("bandwidthupdate",function(){var t=a.selectPlaylist(),e=a.masterPlaylistLoader_.media(),i=a.tech_.buffered(),n=i.length?i.end(i.length-1)-a.tech_.currentTime():0,r=a.bufferLowWaterLine();(!e.endList||a.duration()<Ud.MAX_BUFFER_LOW_WATER_LINE||t.attributes.BANDWIDTH<e.attributes.BANDWIDTH||r<=n)&&a.masterPlaylistLoader_.media(t),a.tech_.trigger("bandwidthupdate")}),this.mainSegmentLoader_.on("progress",function(){a.trigger("progress")}),this.mainSegmentLoader_.on("error",function(){a.blacklistCurrentPlaylist(a.mainSegmentLoader_.error())}),this.mainSegmentLoader_.on("syncinfoupdate",function(){a.onSyncInfoUpdate_()}),this.mainSegmentLoader_.on("timestampoffset",function(){a.tech_.trigger({type:"usage",name:"hls-timestamp-offset"})}),this.audioSegmentLoader_.on("syncinfoupdate",function(){a.onSyncInfoUpdate_()}),this.mainSegmentLoader_.on("ended",function(){a.onEndOfStream()}),this.mainSegmentLoader_.on("earlyabort",function(){a.blacklistCurrentPlaylist({message:"Aborted early because there isn't enough bandwidth to complete the request without rebuffering."},120)}),this.mainSegmentLoader_.on("reseteverything",function(){a.tech_.trigger("hls-reset")}),this.mainSegmentLoader_.on("segmenttimemapping",function(t){a.tech_.trigger({type:"hls-segment-time-mapping",mapping:t.mapping})}),this.audioSegmentLoader_.on("ended",function(){a.onEndOfStream()})}},{key:"mediaSecondsLoaded_",value:function(){return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded+this.mainSegmentLoader_.mediaSecondsLoaded)}},{key:"load",value:function(){this.mainSegmentLoader_.load(),this.mediaTypes_.AUDIO.activePlaylistLoader&&this.audioSegmentLoader_.load(),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&this.subtitleSegmentLoader_.load()}},{key:"smoothQualityChange_",value:function(){var t=this.selectPlaylist();t!==this.masterPlaylistLoader_.media()&&(this.masterPlaylistLoader_.media(t),this.mainSegmentLoader_.resetLoader())}},{key:"fastQualityChange_",value:function(){var t=this,e=this.selectPlaylist();e!==this.masterPlaylistLoader_.media()&&(this.masterPlaylistLoader_.media(e),this.mainSegmentLoader_.resetEverything(function(){Oa.browser.IE_VERSION||Oa.browser.IS_EDGE?t.tech_.setCurrentTime(t.tech_.currentTime()+.04):t.tech_.setCurrentTime(t.tech_.currentTime())}))}},{key:"play",value:function(){if(!this.setupFirstPlay()){this.tech_.ended()&&this.seekTo_(0),this.hasPlayed_()&&this.load();var t=this.tech_.seekable();return this.tech_.duration()===1/0&&this.tech_.currentTime()<t.start(0)?this.seekTo_(t.end(t.length-1)):void 0}}},{key:"setupFirstPlay",value:function(){var t=this,e=this.masterPlaylistLoader_.media();if(!e||this.tech_.paused()||this.hasPlayed_())return!1;if(!e.endList){var i=this.seekable();if(!i.length)return!1;if(Oa.browser.IE_VERSION&&0===this.tech_.readyState())return this.tech_.one("loadedmetadata",function(){t.trigger("firstplay"),t.seekTo_(i.end(0)),t.hasPlayed_=function(){return!0}}),!1;this.trigger("firstplay"),this.seekTo_(i.end(0))}return this.hasPlayed_=function(){return!0},this.load(),!0}},{key:"handleSourceOpen_",value:function(){try{this.setupSourceBuffers_()}catch(t){return Oa.log.warn("Failed to create Source Buffers",t),this.mediaSource.endOfStream("decode")}if(this.tech_.autoplay()){var t=this.tech_.play();"undefined"!=typeof t&&"function"==typeof t.then&&t.then(null,function(t){})}this.trigger("sourceopen")}},{key:"onEndOfStream",value:function(){var t=this.mainSegmentLoader_.ended_;this.mediaTypes_.AUDIO.activePlaylistLoader&&(t=!this.mainSegmentLoader_.startingMedia_||this.mainSegmentLoader_.startingMedia_.containsVideo?t&&this.audioSegmentLoader_.ended_:this.audioSegmentLoader_.ended_),t&&this.mediaSource.endOfStream()}},{key:"stuckAtPlaylistEnd_",value:function(t){if(!this.seekable().length)return!1;var e=this.syncController_.getExpiredTime(t,this.mediaSource.duration);if(null===e)return!1;var i=hp.Playlist.playlistEnd(t,e),n=this.tech_.currentTime(),r=this.tech_.buffered();if(!r.length)return i-n<=.1;var a=r.end(r.length-1);return a-n<=.1&&i-a<=.1}},{key:"blacklistCurrentPlaylist",value:function(){var t,e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{},i=arguments[1],n=void 0;if(n=e.playlist||this.masterPlaylistLoader_.media(),i=i||e.blacklistDuration||this.blacklistDuration,!n){this.error=e;try{return this.mediaSource.endOfStream("network")}catch(t){return this.trigger("error")}}var r=1===this.masterPlaylistLoader_.master.playlists.filter(Oh).length;return r?(Oa.log.warn("Problem encountered with the current HLS playlist. Trying again since it is the final playlist."),this.tech_.trigger("retryplaylist"),this.masterPlaylistLoader_.load(r)):(n.excludeUntil=Date.now()+1e3*i,this.tech_.trigger("blacklistplaylist"),this.tech_.trigger({type:"usage",name:"hls-rendition-blacklisted"}),t=this.selectPlaylist(),Oa.log.warn("Problem encountered with the current HLS playlist."+(e.message?" "+e.message:"")+" Switching to another playlist."),this.masterPlaylistLoader_.media(t))}},{key:"pauseLoading",value:function(){this.mainSegmentLoader_.pause(),this.mediaTypes_.AUDIO.activePlaylistLoader&&this.audioSegmentLoader_.pause(),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&this.subtitleSegmentLoader_.pause()}},{key:"setCurrentTime",value:function(t){var e=qh(this.tech_.buffered(),t);return this.masterPlaylistLoader_&&this.masterPlaylistLoader_.media()&&this.masterPlaylistLoader_.media().segments?e&&e.length?t:(this.mainSegmentLoader_.resetEverything(),this.mainSegmentLoader_.abort(),this.mediaTypes_.AUDIO.activePlaylistLoader&&(this.audioSegmentLoader_.resetEverything(),this.audioSegmentLoader_.abort()),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&(this.subtitleSegmentLoader_.resetEverything(),this.subtitleSegmentLoader_.abort()),void this.load()):0}},{key:"duration",value:function(){return this.masterPlaylistLoader_?this.mediaSource?this.mediaSource.duration:hp.Playlist.duration(this.masterPlaylistLoader_.media()):0}},{key:"seekable",value:function(){return this.seekable_}},{key:"onSyncInfoUpdate_",value:function(){var t=void 0,e=void 0;if(this.masterPlaylistLoader_){var i=this.masterPlaylistLoader_.media();if(i){var n=this.syncController_.getExpiredTime(i,this.mediaSource.duration);if(null!==n&&0!==(t=hp.Playlist.seekable(i,n)).length){if(this.mediaTypes_.AUDIO.activePlaylistLoader){if(i=this.mediaTypes_.AUDIO.activePlaylistLoader.media(),null===(n=this.syncController_.getExpiredTime(i,this.mediaSource.duration)))return;if(0===(e=hp.Playlist.seekable(i,n)).length)return}e?e.start(0)>t.end(0)||t.start(0)>e.end(0)?this.seekable_=t:this.seekable_=Oa.createTimeRanges([[e.start(0)>t.start(0)?e.start(0):t.start(0),e.end(0)<t.end(0)?e.end(0):t.end(0)]]):this.seekable_=t,this.logger_("seekable updated ["+Gh(this.seekable_)+"]"),this.tech_.trigger("seekablechanged")}}}}},{key:"updateDuration",value:function(){var e=this,t=this.mediaSource.duration,i=hp.Playlist.duration(this.masterPlaylistLoader_.media()),n=this.tech_.buffered(),r=function t(){e.mediaSource.duration=i,e.tech_.trigger("durationchange"),e.mediaSource.removeEventListener("sourceopen",t)};0<n.length&&(i=Math.max(i,n.end(n.length-1))),t!==i&&("open"!==this.mediaSource.readyState?this.mediaSource.addEventListener("sourceopen",r):r())}},{key:"dispose",value:function(){var n=this;this.decrypter_.terminate(),this.masterPlaylistLoader_.dispose(),this.mainSegmentLoader_.dispose(),["AUDIO","SUBTITLES"].forEach(function(t){var e=n.mediaTypes_[t].groups;for(var i in e)e[i].forEach(function(t){t.playlistLoader&&t.playlistLoader.dispose()})}),this.audioSegmentLoader_.dispose(),this.subtitleSegmentLoader_.dispose()}},{key:"master",value:function(){return this.masterPlaylistLoader_.master}},{key:"media",value:function(){return this.masterPlaylistLoader_.media()||this.initialMedia_}},{key:"setupSourceBuffers_",value:function(){var t,e=this.masterPlaylistLoader_.media();if(e&&"open"===this.mediaSource.readyState){if((t=pd(this.masterPlaylistLoader_.master,e)).length<1)return this.error="No compatible SourceBuffer configuration for the variant stream:"+e.resolvedUri,this.mediaSource.endOfStream("decode");this.configureLoaderMimeTypes_(t),this.excludeIncompatibleVariants_(e)}}},{key:"configureLoaderMimeTypes_",value:function(t){var e=1<t.length&&-1===t[0].indexOf(",")&&t[0]!==t[1]?new Oa.EventTarget:null;this.mainSegmentLoader_.mimeType(t[0],e),t[1]&&this.audioSegmentLoader_.mimeType(t[1],e)}},{key:"excludeUnsupportedVariants_",value:function(){this.master().playlists.forEach(function(t){t.attributes.CODECS&&g.MediaSource&&g.MediaSource.isTypeSupported&&!g.MediaSource.isTypeSupported('video/mp4; codecs="'+t.attributes.CODECS.replace(/avc1\.(\d+)\.(\d+)/i,function(t){return cd([t])[0]})+'"')&&(t.excludeUntil=1/0)})}},{key:"excludeIncompatibleVariants_",value:function(t){var i=2,n=null,e=void 0;t.attributes.CODECS&&(e=hd(t.attributes.CODECS),n=e.videoCodec,i=e.codecCount),this.master().playlists.forEach(function(t){var e={codecCount:2,videoCodec:null};t.attributes.CODECS&&(e=hd(t.attributes.CODECS)),e.codecCount!==i&&(t.excludeUntil=1/0),e.videoCodec!==n&&(t.excludeUntil=1/0)})}},{key:"updateAdCues_",value:function(t){var e=0,i=this.seekable();i.length&&(e=i.start(0)),function(t,e){var i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:0;if(t.segments)for(var n=i,r=void 0,a=0;a<t.segments.length;a++){var s=t.segments[a];if(r||(r=Kd(e,n+s.duration/2)),r){if("cueIn"in s){r.endTime=n,r.adEndTime=n,n+=s.duration,r=null;continue}if(n<r.endTime){n+=s.duration;continue}r.endTime+=s.duration}else if("cueOut"in s&&((r=new g.VTTCue(n,n+s.duration,s.cueOut)).adStartTime=n,r.adEndTime=n+parseFloat(s.cueOut),e.addCue(r)),"cueOutCont"in s){var o,u,l=s.cueOutCont.split("/").map(parseFloat),c=oh(l,2);o=c[0],u=c[1],(r=new g.VTTCue(n,n+s.duration,"")).adStartTime=n-o,r.adEndTime=r.adStartTime+u,e.addCue(r)}n+=s.duration}}(t,this.cueTagsTrack_,e)}},{key:"goalBufferLength",value:function(){var t=this.tech_.currentTime(),e=Ud.GOAL_BUFFER_LENGTH,i=Ud.GOAL_BUFFER_LENGTH_RATE,n=Math.max(e,Ud.MAX_GOAL_BUFFER_LENGTH);return Math.min(e+t*i,n)}},{key:"bufferLowWaterLine",value:function(){var t=this.tech_.currentTime(),e=Ud.BUFFER_LOW_WATER_LINE,i=Ud.BUFFER_LOW_WATER_LINE_RATE,n=Math.max(e,Ud.MAX_BUFFER_LOW_WATER_LINE);return Math.min(e+t*i,n)}}]),p}(),mp=function t(e,i,n){nh(this,t);var r,a,s,o=e.masterPlaylistController_.fastQualityChange_.bind(e.masterPlaylistController_);if(i.attributes.RESOLUTION){var u=i.attributes.RESOLUTION;this.width=u.width,this.height=u.height}this.bandwidth=i.attributes.BANDWIDTH,this.id=n,this.enabled=(r=e.playlists,a=i.uri,s=o,function(t){var e=r.master.playlists[a],i=Lh(e),n=Oh(e);return"undefined"==typeof t?n:(t?delete e.disabled:e.disabled=!0,t===n||i||(s(),t?r.trigger("renditionenabled"):r.trigger("renditiondisabled")),t)})},gp=["seeking","seeked","pause","playing","error"],yp=function(){function s(t){var e=this;nh(this,s),this.tech_=t.tech,this.seekable=t.seekable,this.seekTo=t.seekTo,this.consecutiveUpdates=0,this.lastRecordedTime=null,this.timer_=null,this.checkCurrentTimeTimeout_=null,this.logger_=Ld("PlaybackWatcher"),this.logger_("initialize");var i=function(){return e.monitorCurrentTime_()},n=function(){return e.techWaiting_()},r=function(){return e.cancelTimer_()},a=function(){return e.fixesBadSeeks_()};this.tech_.on("seekablechanged",a),this.tech_.on("waiting",n),this.tech_.on(gp,r),this.tech_.on("canplay",i),this.dispose=function(){e.logger_("dispose"),e.tech_.off("seekablechanged",a),e.tech_.off("waiting",n),e.tech_.off(gp,r),e.tech_.off("canplay",i),e.checkCurrentTimeTimeout_&&g.clearTimeout(e.checkCurrentTimeTimeout_),e.cancelTimer_()}}return rh(s,[{key:"monitorCurrentTime_",value:function(){this.checkCurrentTime_(),this.checkCurrentTimeTimeout_&&g.clearTimeout(this.checkCurrentTimeTimeout_),this.checkCurrentTimeTimeout_=g.setTimeout(this.monitorCurrentTime_.bind(this),250)}},{key:"checkCurrentTime_",value:function(){if(this.tech_.seeking()&&this.fixesBadSeeks_())return this.consecutiveUpdates=0,void(this.lastRecordedTime=this.tech_.currentTime());if(!this.tech_.paused()&&!this.tech_.seeking()){var t=this.tech_.currentTime(),e=this.tech_.buffered();if(this.lastRecordedTime===t&&(!e.length||t+.1>=e.end(e.length-1)))return this.techWaiting_();5<=this.consecutiveUpdates&&t===this.lastRecordedTime?(this.consecutiveUpdates++,this.waiting_()):t===this.lastRecordedTime?this.consecutiveUpdates++:(this.consecutiveUpdates=0,this.lastRecordedTime=t)}}},{key:"cancelTimer_",value:function(){this.consecutiveUpdates=0,this.timer_&&(this.logger_("cancelTimer_"),clearTimeout(this.timer_)),this.timer_=null}},{key:"fixesBadSeeks_",value:function(){var t=this.tech_.seeking(),e=this.seekable(),i=this.tech_.currentTime(),n=void 0;t&&this.afterSeekableWindow_(e,i)&&(n=e.end(e.length-1));t&&this.beforeSeekableWindow_(e,i)&&(n=e.start(0)+.1);return"undefined"!=typeof n&&(this.logger_("Trying to seek outside of seekable at time "+i+" with seekable range "+Gh(e)+". Seeking to "+n+"."),this.seekTo(n),!0)}},{key:"waiting_",value:function(){if(!this.techWaiting_()){var t=this.tech_.currentTime(),e=this.tech_.buffered(),i=qh(e,t);return i.length&&t+3<=i.end(0)?(this.cancelTimer_(),this.seekTo(t),this.logger_("Stopped at "+t+" while inside a buffered region ["+i.start(0)+" -> "+i.end(0)+"]. Attempting to resume playback by seeking to the current time."),void this.tech_.trigger({type:"usage",name:"hls-unknown-waiting"})):void 0}}},{key:"techWaiting_",value:function(){var t=this.seekable(),e=this.tech_.currentTime();if(this.tech_.seeking()&&this.fixesBadSeeks_())return!0;if(this.tech_.seeking()||null!==this.timer_)return!0;if(this.beforeSeekableWindow_(t,e)){var i=t.end(t.length-1);return this.logger_("Fell out of live window at time "+e+". Seeking to live point (seekable end) "+i),this.cancelTimer_(),this.seekTo(i),this.tech_.trigger({type:"usage",name:"hls-live-resync"}),!0}var n=this.tech_.buffered(),r=Wh(n,e);if(this.videoUnderflow_(r,n,e))return this.cancelTimer_(),this.seekTo(e),this.tech_.trigger({type:"usage",name:"hls-video-underflow"}),!0;if(0<r.length){var a=r.start(0)-e;return this.logger_("Stopped at "+e+", setting timer for "+a+", seeking to "+r.start(0)),this.timer_=setTimeout(this.skipTheGap_.bind(this),1e3*a,e),!0}return!1}},{key:"afterSeekableWindow_",value:function(t,e){return!!t.length&&e>t.end(t.length-1)+.1}},{key:"beforeSeekableWindow_",value:function(t,e){return!!(t.length&&0<t.start(0)&&e<t.start(0)-.1)}},{key:"videoUnderflow_",value:function(t,e,i){if(0===t.length){var n=this.gapFromVideoUnderflow_(e,i);if(n)return this.logger_("Encountered a gap in video from "+n.start+" to "+n.end+". Seeking to current time "+i),!0}return!1}},{key:"skipTheGap_",value:function(t){var e=this.tech_.buffered(),i=this.tech_.currentTime(),n=Wh(e,i);this.cancelTimer_(),0!==n.length&&i===t&&(this.logger_("skipTheGap_:","currentTime:",i,"scheduled currentTime:",t,"nextRange start:",n.start(0)),this.seekTo(n.start(0)+Hh),this.tech_.trigger({type:"usage",name:"hls-gap-skip"}))}},{key:"gapFromVideoUnderflow_",value:function(t,e){for(var i=function(t){if(t.length<2)return Oa.createTimeRanges();for(var e=[],i=1;i<t.length;i++){var n=t.end(i-1),r=t.start(i);e.push([n,r])}return Oa.createTimeRanges(e)}(t),n=0;n<i.length;n++){var r=i.start(n),a=i.end(n);if(e-r<4&&2<e-r)return{start:r,end:a}}return null}}]),s}(),vp={errorInterval:30,getSource:function(t){return t(this.tech({IWillNotUseThisInPlugins:!0}).currentSource_)}},_p=function(t){!function e(i,t){var n=0,r=0,a=Oa.mergeOptions(vp,t);i.ready(function(){i.trigger({type:"usage",name:"hls-error-reload-initialized"})});var s=function(){r&&i.currentTime(r)},o=function(t){null!=t&&(r=i.duration()!==1/0&&i.currentTime()||0,i.one("loadedmetadata",s),i.src(t),i.trigger({type:"usage",name:"hls-error-reload"}),i.play())},u=function(){if(Date.now()-n<1e3*a.errorInterval)i.trigger({type:"usage",name:"hls-error-reload-canceled"});else{if(a.getSource&&"function"==typeof a.getSource)return n=Date.now(),a.getSource.call(i,o);Oa.log.error("ERROR: reloadSourceOnError - The option getSource must be a function!")}},l=function t(){i.off("loadedmetadata",s),i.off("error",u),i.off("dispose",t)};i.on("error",u),i.on("dispose",l),i.reloadSourceOnError=function(t){l(),e(i,t)}}(this,t)};Oa.use("*",function(e){return{setSource:function(t,e){e(null,t)},setCurrentTime:function(t){return e.vhs&&e.currentSource().src===e.vhs.source_.src&&e.vhs.setCurrentTime(t),t},play:function(){e.vhs&&e.currentSource().src===e.vhs.source_.src&&e.vhs.setCurrentTime(e.currentTime())}}});var bp={PlaylistLoader:gh,Playlist:xh,Decrypter:eh,AsyncStream:Qc,decrypt:th,utils:Vh,STANDARD_PLAYLIST_SELECTOR:function(){return function(t,e,i,n){var r=t.playlists.map(function(t){var e,i;return e=t.attributes.RESOLUTION&&t.attributes.RESOLUTION.width,i=t.attributes.RESOLUTION&&t.attributes.RESOLUTION.height,{bandwidth:t.attributes.BANDWIDTH||g.Number.MAX_VALUE,width:e,height:i,playlist:t}});Hd(r,function(t,e){return t.bandwidth-e.bandwidth});var a=(r=r.filter(function(t){return!xh.isIncompatible(t.playlist)})).filter(function(t){return xh.isEnabled(t.playlist)});a.length||(a=r.filter(function(t){return!xh.isDisabled(t.playlist)}));var s=a.filter(function(t){return t.bandwidth*Ud.BANDWIDTH_VARIANCE<e}),o=s[s.length-1],u=s.filter(function(t){return t.bandwidth===o.bandwidth})[0],l=s.filter(function(t){return t.width&&t.height});Hd(l,function(t,e){return t.width-e.width});var c=l.filter(function(t){return t.width===i&&t.height===n});o=c[c.length-1];var h=c.filter(function(t){return t.bandwidth===o.bandwidth})[0],d=void 0,p=void 0,f=void 0;h||(p=(d=l.filter(function(t){return t.width>i||t.height>n})).filter(function(t){return t.width===d[0].width&&t.height===d[0].height}),o=p[p.length-1],f=p.filter(function(t){return t.bandwidth===o.bandwidth})[0]);var m=f||h||u||a[0]||r[0];return m?m.playlist:null}(this.playlists.master,this.systemBandwidth,parseInt(Vd(this.tech_.el(),"width"),10),parseInt(Vd(this.tech_.el(),"height"),10))},INITIAL_PLAYLIST_SELECTOR:function(){var t=this.playlists.master.playlists.filter(xh.isEnabled);return Hd(t,function(t,e){return zd(t,e)}),t.filter(function(t){return hd(t.attributes.CODECS).videoCodec})[0]||null},comparePlaylistBandwidth:zd,comparePlaylistResolution:function(t,e){var i=void 0,n=void 0;return t.attributes.RESOLUTION&&t.attributes.RESOLUTION.width&&(i=t.attributes.RESOLUTION.width),i=i||g.Number.MAX_VALUE,e.attributes.RESOLUTION&&e.attributes.RESOLUTION.width&&(n=e.attributes.RESOLUTION.width),i===(n=n||g.Number.MAX_VALUE)&&t.attributes.BANDWIDTH&&e.attributes.BANDWIDTH?t.attributes.BANDWIDTH-e.attributes.BANDWIDTH:i-n},xhr:Rh()};["GOAL_BUFFER_LENGTH","MAX_GOAL_BUFFER_LENGTH","GOAL_BUFFER_LENGTH_RATE","BUFFER_LOW_WATER_LINE","MAX_BUFFER_LOW_WATER_LINE","BUFFER_LOW_WATER_LINE_RATE","BANDWIDTH_VARIANCE"].forEach(function(e){Object.defineProperty(bp,e,{get:function(){return Oa.log.warn("using Hls."+e+" is UNSAFE be sure you know what you are doing"),Ud[e]},set:function(t){Oa.log.warn("using Hls."+e+" is UNSAFE be sure you know what you are doing"),"number"!=typeof t||t<0?Oa.log.warn("value of Hls."+e+" must be greater than or equal to 0"):Ud[e]=t}})});var Tp=function(t){if(/^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i.test(t))return"hls";return/^application\/dash\+xml/i.test(t)?"dash":null},Sp=function(t,e){for(var i=e.media(),n=-1,r=0;r<t.length;r++)if(t[r].id===i.uri){n=r;break}t.selectedIndex_=n,t.trigger({selectedIndex:n,type:"change"})};bp.canPlaySource=function(){return Oa.log.warn("HLS is no longer a tech. Please remove it from your player's techOrder.")};var kp=function(t){if("dash"===t.options_.sourceType){var e=Oa.players[t.tech_.options_.playerId];if(e.eme){var i=function(t,e,i){if(!t)return t;var n={};for(var r in t)n[r]={audioContentType:'audio/mp4; codecs="'+i.attributes.CODECS+'"',videoContentType:'video/mp4; codecs="'+e.attributes.CODECS+'"'},e.contentProtection&&e.contentProtection[r]&&e.contentProtection[r].pssh&&(n[r].pssh=e.contentProtection[r].pssh),"string"==typeof t[r]&&(n[r].url=t[r]);return Oa.mergeOptions(t,n)}(t.source_.keySystems,t.playlists.media(),t.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader.media());i&&(e.currentSource().keySystems=i)}}};bp.supportsNativeHls=function(){var e=p.createElement("video");if(!Oa.getTech("Html5").isSupported())return!1;return["application/vnd.apple.mpegurl","audio/mpegurl","audio/x-mpegurl","application/x-mpegurl","video/x-mpegurl","video/mpegurl","application/mpegurl"].some(function(t){return/maybe|probably/i.test(e.canPlayType(t))})}(),bp.supportsNativeDash=!!Oa.getTech("Html5").isSupported()&&/maybe|probably/i.test(p.createElement("video").canPlayType("application/dash+xml")),bp.supportsTypeNatively=function(t){return"hls"===t?bp.supportsNativeHls:"dash"===t&&bp.supportsNativeDash},bp.isSupported=function(){return Oa.log.warn("HLS is no longer a tech. Please remove it from your player's techOrder.")};var Cp=Oa.getComponent("Component"),wp=function(t){function a(t,e,i){nh(this,a);var n=sh(this,(a.__proto__||Object.getPrototypeOf(a)).call(this,e,i.hls));if(e.options_&&e.options_.playerId){var r=Oa(e.options_.playerId);r.hasOwnProperty("hls")||Object.defineProperty(r,"hls",{get:function(){return Oa.log.warn("player.hls is deprecated. Use player.tech().hls instead."),e.trigger({type:"usage",name:"hls-player-access"}),n}}),r.vhs=n,r.dash=n}if(n.tech_=e,n.source_=t,n.stats={},n.setOptions_(),n.options_.overrideNative&&e.overrideNativeAudioTracks&&e.overrideNativeVideoTracks)e.overrideNativeAudioTracks(!0),e.overrideNativeVideoTracks(!0);else if(n.options_.overrideNative&&(e.featuresNativeVideoTracks||e.featuresNativeAudioTracks))throw new Error("Overriding native HLS requires emulated tracks. See https://git.io/vMpjB");return n.on(p,["fullscreenchange","webkitfullscreenchange","mozfullscreenchange","MSFullscreenChange"],function(t){var e=p.fullscreenElement||p.webkitFullscreenElement||p.mozFullScreenElement||p.msFullscreenElement;e&&e.contains(n.tech_.el())&&n.masterPlaylistController_.smoothQualityChange_()}),n.on(n.tech_,"error",function(){this.masterPlaylistController_&&this.masterPlaylistController_.pauseLoading()}),n.on(n.tech_,"play",n.play),n}return ah(a,Cp),rh(a,[{key:"setOptions_",value:function(){var e=this;this.options_.withCredentials=this.options_.withCredentials||!1,"number"!=typeof this.options_.blacklistDuration&&(this.options_.blacklistDuration=300),"number"!=typeof this.options_.bandwidth&&(this.options_.bandwidth=4194304),this.options_.enableLowInitialPlaylist=this.options_.enableLowInitialPlaylist&&4194304===this.options_.bandwidth,["withCredentials","bandwidth"].forEach(function(t){"undefined"!=typeof e.source_[t]&&(e.options_[t]=e.source_[t])}),this.bandwidth=this.options_.bandwidth}},{key:"src",value:function(t,e){var n=this;t&&(this.setOptions_(),this.options_.url=this.source_.src,this.options_.tech=this.tech_,this.options_.externHls=bp,this.options_.sourceType=Tp(e),this.options_.seekTo=function(t){n.tech_.setCurrentTime(t),n.setCurrentTime(t)},this.masterPlaylistController_=new fp(this.options_),this.playbackWatcher_=new yp(Oa.mergeOptions(this.options_,{seekable:function(){return n.seekable()}})),this.masterPlaylistController_.on("error",function(){Oa.players[n.tech_.options_.playerId].error(n.masterPlaylistController_.error)}),this.masterPlaylistController_.selectPlaylist=this.selectPlaylist?this.selectPlaylist.bind(this):bp.STANDARD_PLAYLIST_SELECTOR.bind(this),this.masterPlaylistController_.selectInitialPlaylist=bp.INITIAL_PLAYLIST_SELECTOR.bind(this),this.playlists=this.masterPlaylistController_.masterPlaylistLoader_,this.mediaSource=this.masterPlaylistController_.mediaSource,Object.defineProperties(this,{selectPlaylist:{get:function(){return this.masterPlaylistController_.selectPlaylist},set:function(t){this.masterPlaylistController_.selectPlaylist=t.bind(this)}},throughput:{get:function(){return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate},set:function(t){this.masterPlaylistController_.mainSegmentLoader_.throughput.rate=t,this.masterPlaylistController_.mainSegmentLoader_.throughput.count=1}},bandwidth:{get:function(){return this.masterPlaylistController_.mainSegmentLoader_.bandwidth},set:function(t){this.masterPlaylistController_.mainSegmentLoader_.bandwidth=t,this.masterPlaylistController_.mainSegmentLoader_.throughput={rate:0,count:0}}},systemBandwidth:{get:function(){var t=1/(this.bandwidth||1),e=void 0;return e=0<this.throughput?1/this.throughput:0,Math.floor(1/(t+e))},set:function(){Oa.log.error('The "systemBandwidth" property is read-only')}}}),Object.defineProperties(this.stats,{bandwidth:{get:function(){return n.bandwidth||0},enumerable:!0},mediaRequests:{get:function(){return n.masterPlaylistController_.mediaRequests_()||0},enumerable:!0},mediaRequestsAborted:{get:function(){return n.masterPlaylistController_.mediaRequestsAborted_()||0},enumerable:!0},mediaRequestsTimedout:{get:function(){return n.masterPlaylistController_.mediaRequestsTimedout_()||0},enumerable:!0},mediaRequestsErrored:{get:function(){return n.masterPlaylistController_.mediaRequestsErrored_()||0},enumerable:!0},mediaTransferDuration:{get:function(){return n.masterPlaylistController_.mediaTransferDuration_()||0},enumerable:!0},mediaBytesTransferred:{get:function(){return n.masterPlaylistController_.mediaBytesTransferred_()||0},enumerable:!0},mediaSecondsLoaded:{get:function(){return n.masterPlaylistController_.mediaSecondsLoaded_()||0},enumerable:!0},buffered:{get:function(){return Xh(n.tech_.buffered())},enumerable:!0},currentTime:{get:function(){return n.tech_.currentTime()},enumerable:!0},currentSource:{get:function(){return n.tech_.currentSource_},enumerable:!0},currentTech:{get:function(){return n.tech_.name_},enumerable:!0},duration:{get:function(){return n.tech_.duration()},enumerable:!0},master:{get:function(){return n.playlists.master},enumerable:!0},playerDimensions:{get:function(){return n.tech_.currentDimensions()},enumerable:!0},seekable:{get:function(){return Xh(n.tech_.seekable())},enumerable:!0},timestamp:{get:function(){return Date.now()},enumerable:!0},videoPlaybackQuality:{get:function(){return n.tech_.getVideoPlaybackQuality()},enumerable:!0}}),this.tech_.one("canplay",this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_)),this.masterPlaylistController_.on("selectedinitialmedia",function(){var i,t;t=(i=n).playlists,i.representations=function(){return t.master.playlists.filter(function(t){return!Lh(t)}).map(function(t,e){return new mp(i,t,t.uri)})},kp(n)}),this.on(this.masterPlaylistController_,"progress",function(){this.tech_.trigger("progress")}),this.tech_.ready(function(){return n.setupQualityLevels_()}),this.tech_.el()&&this.tech_.src(Oa.URL.createObjectURL(this.masterPlaylistController_.mediaSource)))}},{key:"setupQualityLevels_",value:function(){var i=this,t=Oa.players[this.tech_.options_.playerId];t&&t.qualityLevels&&(this.qualityLevels_=t.qualityLevels(),this.masterPlaylistController_.on("selectedinitialmedia",function(){var e,t;e=i.qualityLevels_,(t=i).representations().forEach(function(t){e.addQualityLevel(t)}),Sp(e,t.playlists)}),this.playlists.on("mediachange",function(){Sp(i.qualityLevels_,i.playlists)}))}},{key:"play",value:function(){this.masterPlaylistController_.play()}},{key:"setCurrentTime",value:function(t){this.masterPlaylistController_.setCurrentTime(t)}},{key:"duration",value:function(){return this.masterPlaylistController_.duration()}},{key:"seekable",value:function(){return this.masterPlaylistController_.seekable()}},{key:"dispose",value:function(){this.playbackWatcher_&&this.playbackWatcher_.dispose(),this.masterPlaylistController_&&this.masterPlaylistController_.dispose(),this.qualityLevels_&&this.qualityLevels_.dispose(),function t(e,i,n){null===e&&(e=Function.prototype);var r=Object.getOwnPropertyDescriptor(e,i);if(void 0===r){var a=Object.getPrototypeOf(e);return null===a?void 0:t(a,i,n)}if("value"in r)return r.value;var s=r.get;return void 0!==s?s.call(n):void 0}(a.prototype.__proto__||Object.getPrototypeOf(a.prototype),"dispose",this).call(this)}}]),a}(),Ep={name:"videojs-http-streaming",VERSION:"1.2.6",canHandleSource:function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=Oa.mergeOptions(Oa.options,e);return Ep.canPlayType(t.type,i)},handleSource:function(t,e){var i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{},n=Oa.mergeOptions(Oa.options,i);return e.hls=new wp(t,e,n),e.hls.xhr=Rh(),e.hls.src(t.src,t.type),e.hls},canPlayType:function(t){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},i=Oa.mergeOptions(Oa.options,e).hls.overrideNative,n=Tp(t);return n&&(!bp.supportsTypeNatively(n)||i)?"maybe":""}};return"undefined"!=typeof Oa.MediaSource&&"undefined"!=typeof Oa.URL||(Oa.MediaSource=Sd,Oa.URL=kd),Sd.supportsNativeMediaSources()&&Oa.getTech("Html5").registerSourceHandler(Ep,0),Oa.HlsHandler=wp,Oa.HlsSourceHandler=Ep,Oa.Hls=bp,Oa.use||Oa.registerComponent("Hls",bp),Oa.options.hls=Oa.options.hls||{},Oa.registerPlugin?Oa.registerPlugin("reloadSourceOnError",_p):Oa.plugin("reloadSourceOnError",_p),Oa});